From b598d05d389e137baa10e277a37fca2c363fb295 Mon Sep 17 00:00:00 2001 From: Nigel Tao Date: Tue, 13 Aug 2024 22:10:52 +1000 Subject: vc/wuffs: upgrade to Wuffs 0.4.0-alpha.8 We were previously at Wuffs 0.4.0-alpha.2. The C file was copied from https://github.com/google/wuffs-mirror-release-c and its hash matches https://github.com/google/wuffs-mirror-release-c/blob/90e4d81a6a8b7b601e8e568da32a105d7f7705e5/sync.txt#L9-L10 $ sha256sum src/vendorcode/wuffs/wuffs-v0.4.c 6c22caff4af929112601379a73f72461bc4719a5215366bcc90d599cbc442bb6 src/vendorcode/wuffs/wuffs-v0.4.c Change-Id: Ie90d989384e0db2b23d7d1b3d9a57920ac8a95a2 Signed-off-by: Nigel Tao Reviewed-on: https://review.coreboot.org/c/coreboot/+/83894 Reviewed-by: Felix Singer Reviewed-by: Nico Huber Tested-by: build bot (Jenkins) --- src/vendorcode/wuffs/wuffs-v0.4.c | 101194 ++++++++++++++++++++--------------- 1 file changed, 58878 insertions(+), 42316 deletions(-) (limited to 'src/vendorcode') diff --git a/src/vendorcode/wuffs/wuffs-v0.4.c b/src/vendorcode/wuffs/wuffs-v0.4.c index bce9eb9798..0c6616a652 100644 --- a/src/vendorcode/wuffs/wuffs-v0.4.c +++ b/src/vendorcode/wuffs/wuffs-v0.4.c @@ -81,15 +81,43 @@ extern "C" { // each major.minor branch, the commit count should increase monotonically. // // WUFFS_VERSION was overridden by "wuffs gen -version" based on revision -// ae8531f7f846fbbe3a7340bf88499ad294a1367b committed on 2023-10-07. +// 5d69840f8e7ca481551b02c7e8d4c5fb69521bb9 committed on 2024-08-12. #define WUFFS_VERSION 0x000040000 #define WUFFS_VERSION_MAJOR 0 #define WUFFS_VERSION_MINOR 4 #define WUFFS_VERSION_PATCH 0 -#define WUFFS_VERSION_PRE_RELEASE_LABEL "alpha.2" -#define WUFFS_VERSION_BUILD_METADATA_COMMIT_COUNT 3603 -#define WUFFS_VERSION_BUILD_METADATA_COMMIT_DATE 20231007 -#define WUFFS_VERSION_STRING "0.4.0-alpha.2+3603.20231007" +#define WUFFS_VERSION_PRE_RELEASE_LABEL "alpha.8" +#define WUFFS_VERSION_BUILD_METADATA_COMMIT_COUNT 3796 +#define WUFFS_VERSION_BUILD_METADATA_COMMIT_DATE 20240812 +#define WUFFS_VERSION_STRING "0.4.0-alpha.8+3796.20240812" + +// ---------------- Private Implementation Macros Re-definition Check + +// Users (those who #include the "wuffs-vM.N.c" file) should not define any +// WUFFS_PRIVATE_IMPL__ETC macros, only WUFFS_CONFIG__ETC macros (and +// WUFFS_IMPLEMENTATION). Mucking about with the private implementation macros +// is not supported and may break when upgrading to newer Wuffs versions. + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) || \ + defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) || \ + defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) || \ + defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) || \ + defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) || \ + defined(WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) || \ + defined(WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) || \ + defined(WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) || \ + defined(WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U16) || \ + defined(WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32) || \ + defined(WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64) || \ + defined(WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U8) + +#if defined(__GNUC__) || defined(__clang__) +#warning "Defining WUFFS_PRIVATE_IMPL__ETC yourself is not supported" +#elif defined(_MSC_VER) +#pragma message("Defining WUFFS_PRIVATE_IMPL__ETC yourself is not supported") +#endif + +#endif // ---------------- Configuration @@ -117,11 +145,11 @@ extern "C" { // intrinsics. Look for __ARM_FEATURE_CRC32 instead. #if defined(__ARM_FEATURE_CRC32) #include -#define WUFFS_BASE__CPU_ARCH__ARM_CRC32 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32 #endif // defined(__ARM_FEATURE_CRC32) #if defined(__ARM_NEON) #include -#define WUFFS_BASE__CPU_ARCH__ARM_NEON +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON #endif // defined(__ARM_NEON) #endif // defined(__ARM_FEATURE_UNALIGNED) etc @@ -129,26 +157,82 @@ extern "C" { // POPCNT. This is checked at runtime via cpuid, not at compile time. // // Likewise, "cpu_arch >= x86_avx2" also requires PCLMUL, POPCNT and SSE4.2. -#if defined(__i386__) || defined(__x86_64__) +// +// ---- +// +// Technically, we could use the SSE family on 32-bit x86, not just 64-bit x86. +// But some intrinsics don't compile in 32-bit mode. It's not worth the hassle. +// https://github.com/google/wuffs/issues/145 +#if defined(__x86_64__) #if !defined(__native_client__) #include #include -// X86_FAMILY means X86 (32-bit) or X86_64 (64-bit, obviously). -#define WUFFS_BASE__CPU_ARCH__X86_FAMILY -#if defined(__x86_64__) -#define WUFFS_BASE__CPU_ARCH__X86_64 -#endif // defined(__x86_64__) +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3 #endif // !defined(__native_client__) -#endif // defined(__i386__) || defined(__x86_64__) +#endif // defined(__x86_64__) #elif defined(_MSC_VER) // (#if-chain ref AVOID_CPU_ARCH_1) -#if defined(_M_IX86) || defined(_M_X64) -#if defined(__AVX__) || defined(__clang__) +#if defined(_M_X64) + +// On X86_64, Microsoft Visual C/C++ (MSVC) only supports SSE2 by default. +// There are /arch:SSE2, /arch:AVX and /arch:AVX2 compiler flags (the AVX2 one +// is roughly equivalent to X86_64_V3), but there is no /arch:SSE42 compiler +// flag that's equivalent to X86_64_V2. +// +// For getting maximum performance with X86_64 MSVC and Wuffs, pass /arch:AVX2 +// (and then test on the oldest hardware you intend to support). +// +// Absent that compiler flag, either define one of the three macros listed +// below or else the X86_64 SIMD code will be disabled and you'll get a #pragma +// message stating this library "performs best with /arch:AVX2". This message +// is harmless and ignorable, in that the non-SIMD code is still correct and +// reasonably performant, but is a reminder that when combining Wuffs and MSVC, +// some compiler configuration is required for maximum performance. +// +// - WUFFS_CONFIG__DISABLE_MSVC_CPU_ARCH__X86_64_FAMILY +// - WUFFS_CONFIG__ENABLE_MSVC_CPU_ARCH__X86_64_V2 (enables SSE4.2 and below) +// - WUFFS_CONFIG__ENABLE_MSVC_CPU_ARCH__X86_64_V3 (enables AVX2 and below) +// +// Defining the first one (WUFFS_CONFIG__DISABLE_MSVC_CPU_ARCH__X86_64_FAMILY) +// or defining none of those three (the default state) are equivalent (in that +// both disable the SIMD code paths), other than that pragma message. +// +// When defining these WUFFS_CONFIG__ENABLE_ETC macros with MSVC, be aware that +// some users report it leading to ICEs (Internal Compiler Errors), but other +// users report no problems at all (and improved performance). It's unclear +// exactly what combination of SIMD code and MSVC configuration lead to ICEs. +// Do your own testing with your own MSVC version and configuration. +// +// https://github.com/google/wuffs/issues/148 +// https://github.com/google/wuffs/issues/151 +// https://developercommunity.visualstudio.com/t/fatal--error-C1001:-Internal-compiler-er/10703305 +// +// Clang (including clang-cl) and GCC don't need this WUFFS_CONFIG__ETC macro +// machinery, or having the Wuffs-the-library user to fiddle with compiler +// flags, because they support "__attribute__((target(arg)))". +#if defined(__AVX2__) || defined(__clang__) || \ + defined(WUFFS_CONFIG__ENABLE_MSVC_CPU_ARCH__X86_64_V3) +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3 +#elif defined(WUFFS_CONFIG__ENABLE_MSVC_CPU_ARCH__X86_64_V2) +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2 +#elif !defined(WUFFS_CONFIG__DISABLE_MSVC_CPU_ARCH__X86_64_FAMILY) +#pragma message("Wuffs with MSVC+X64 performs best with /arch:AVX2") +#endif // defined(__AVX2__) || defined(__clang__) || etc + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) + +#if defined(WUFFS_CONFIG__DISABLE_MSVC_CPU_ARCH__X86_64_FAMILY) +#error "MSVC_CPU_ARCH simultaneously enabled and disabled" +#endif -// We need for the __cpuid function. #include -// That's not enough for X64 SIMD, with clang-cl, if we want to use +// intrin.h isn't enough for X64 SIMD, with clang-cl, if we want to use // "__attribute__((target(arg)))" without e.g. "/arch:AVX". // // Some web pages suggest that is all you need, as it pulls in @@ -157,25 +241,9 @@ extern "C" { #include // AVX, AVX2, FMA, POPCNT #include // SSE4.2 #include // AES, PCLMUL -// X86_FAMILY means X86 (32-bit) or X86_64 (64-bit, obviously). -#define WUFFS_BASE__CPU_ARCH__X86_FAMILY -#if defined(_M_X64) -#define WUFFS_BASE__CPU_ARCH__X86_64 -#endif // defined(_M_X64) - -#else // defined(__AVX__) || defined(__clang__) - -// clang-cl (which defines both __clang__ and _MSC_VER) supports -// "__attribute__((target(arg)))". -// -// For MSVC's cl.exe (unlike clang or gcc), SIMD capability is a compile-time -// property of the source file (e.g. a /arch:AVX or -mavx compiler flag), not -// of individual functions (that can be conditionally selected at runtime). -#pragma message("Wuffs with MSVC+IX86/X64 needs /arch:AVX for best performance") - -#endif // defined(__AVX__) || defined(__clang__) -#endif // defined(_M_IX86) || defined(_M_X64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) +#endif // defined(_M_X64) #endif // (#if-chain ref AVOID_CPU_ARCH_1) #endif // (#if-chain ref AVOID_CPU_ARCH_0) @@ -198,20 +266,20 @@ extern "C" { static inline bool // wuffs_base__cpu_arch__have_arm_crc32(void) { -#if defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) return true; #else return false; -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) } static inline bool // wuffs_base__cpu_arch__have_arm_neon(void) { -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) return true; #else return false; -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) } static inline bool // @@ -220,7 +288,7 @@ wuffs_base__cpu_arch__have_x86_avx2(void) { defined(__AVX2__) return true; #else -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) // GCC defines these macros but MSVC does not. // - bit_AVX2 = (1 << 5) const unsigned int avx2_ebx7 = 0x00000020; @@ -258,9 +326,9 @@ wuffs_base__cpu_arch__have_x86_avx2(void) { } } #else -#error "WUFFS_BASE__CPU_ARCH__ETC combined with an unsupported compiler" +#error "WUFFS_PRIVATE_IMPL__CPU_ARCH__ETC combined with an unsupported compiler" #endif // defined(__GNUC__); defined(_MSC_VER) -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) return false; #endif // defined(__PCLMUL__) && defined(__POPCNT__) && defined(__SSE4_2__) && // defined(__AVX2__) @@ -271,7 +339,7 @@ wuffs_base__cpu_arch__have_x86_bmi2(void) { #if defined(__BMI2__) return true; #else -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) // GCC defines these macros but MSVC does not. // - bit_BMI2 = (1 << 8) const unsigned int bmi2_ebx7 = 0x00000100; @@ -293,9 +361,9 @@ wuffs_base__cpu_arch__have_x86_bmi2(void) { return true; } #else -#error "WUFFS_BASE__CPU_ARCH__ETC combined with an unsupported compiler" +#error "WUFFS_PRIVATE_IMPL__CPU_ARCH__ETC combined with an unsupported compiler" #endif // defined(__GNUC__); defined(_MSC_VER) -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) return false; #endif // defined(__BMI2__) } @@ -305,7 +373,7 @@ wuffs_base__cpu_arch__have_x86_sse42(void) { #if defined(__PCLMUL__) && defined(__POPCNT__) && defined(__SSE4_2__) return true; #else -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) // GCC defines these macros but MSVC does not. // - bit_PCLMUL = (1 << 1) // - bit_POPCNT = (1 << 23) @@ -329,9 +397,9 @@ wuffs_base__cpu_arch__have_x86_sse42(void) { return true; } #else -#error "WUFFS_BASE__CPU_ARCH__ETC combined with an unsupported compiler" +#error "WUFFS_PRIVATE_IMPL__CPU_ARCH__ETC combined with an unsupported compiler" #endif // defined(__GNUC__); defined(_MSC_VER) -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) return false; #endif // defined(__PCLMUL__) && defined(__POPCNT__) && defined(__SSE4_2__) } @@ -350,9 +418,15 @@ wuffs_base__cpu_arch__have_x86_sse42(void) { // The "defined(__clang__)" isn't redundant. While vanilla clang defines // __GNUC__, clang-cl (which mimics MSVC's cl.exe) does not. #if defined(__GNUC__) || defined(__clang__) +#define WUFFS_BASE__FORCE_INLINE __attribute__((__always_inline__)) #define WUFFS_BASE__POTENTIALLY_UNUSED __attribute__((unused)) #define WUFFS_BASE__WARN_UNUSED_RESULT __attribute__((warn_unused_result)) +#elif defined(_MSC_VER) +#define WUFFS_BASE__FORCE_INLINE __forceinline +#define WUFFS_BASE__POTENTIALLY_UNUSED +#define WUFFS_BASE__WARN_UNUSED_RESULT #else +#define WUFFS_BASE__FORCE_INLINE #define WUFFS_BASE__POTENTIALLY_UNUSED #define WUFFS_BASE__WARN_UNUSED_RESULT #endif @@ -415,6 +489,37 @@ struct wuffs_unique_ptr_deleter { // -------- +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wcast-qual" +#endif + +static inline uint8_t* // +wuffs_base__strip_const_from_u8_ptr(const uint8_t* ptr) { + return (uint8_t*)ptr; +} + +static inline uint16_t* // +wuffs_base__strip_const_from_u16_ptr(const uint16_t* ptr) { + return (uint16_t*)ptr; +} + +static inline uint32_t* // +wuffs_base__strip_const_from_u32_ptr(const uint32_t* ptr) { + return (uint32_t*)ptr; +} + +static inline uint64_t* // +wuffs_base__strip_const_from_u64_ptr(const uint64_t* ptr) { + return (uint64_t*)ptr; +} + +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + +// -------- + // wuffs_base__empty_struct is used when a Wuffs function returns an empty // struct. In C, if a function f returns void, you can't say "x = f()", but in // Wuffs, if a function g returns empty, you can say "y = g()". @@ -483,6 +588,7 @@ extern const char wuffs_base__suspension__even_more_information[]; extern const char wuffs_base__suspension__mispositioned_read[]; extern const char wuffs_base__suspension__mispositioned_write[]; extern const char wuffs_base__suspension__short_read[]; +extern const char wuffs_base__suspension__short_workbuf[]; extern const char wuffs_base__suspension__short_write[]; extern const char wuffs_base__error__bad_i_o_position[]; extern const char wuffs_base__error__bad_argument_length_too_short[]; @@ -496,9 +602,11 @@ extern const char wuffs_base__error__bad_vtable[]; extern const char wuffs_base__error__bad_workbuf_length[]; extern const char wuffs_base__error__bad_wuffs_version[]; extern const char wuffs_base__error__cannot_return_a_suspension[]; +extern const char wuffs_base__error__disabled_by_wuffs_config_dst_pixel_format_enable_allowlist[]; extern const char wuffs_base__error__disabled_by_previous_error[]; extern const char wuffs_base__error__initialize_falsely_claimed_already_zeroed[]; extern const char wuffs_base__error__initialize_not_called[]; +extern const char wuffs_base__error__insufficient_history[]; extern const char wuffs_base__error__interleaved_coroutine_calls[]; extern const char wuffs_base__error__no_more_information[]; extern const char wuffs_base__error__not_enough_data[]; @@ -728,6 +836,9 @@ typedef struct wuffs_base__transform__output__struct { // Lempel–Ziv 4. #define WUFFS_BASE__FOURCC__LZ4 0x4C5A3420 +// Lzip. +#define WUFFS_BASE__FOURCC__LZIP 0x4C5A4950 + // Lempel–Ziv Markov-chain Algorithm. #define WUFFS_BASE__FOURCC__LZMA 0x4C5A4D41 @@ -839,6 +950,8 @@ typedef struct wuffs_base__transform__output__struct { #define WUFFS_BASE__QUIRK_IGNORE_CHECKSUM 1 +#define WUFFS_BASE__QUIRK_QUALITY 2 + // -------- // Flicks are a unit of time. One flick (frame-tick) is 1 / 705_600_000 of a @@ -1092,6 +1205,96 @@ wuffs_base__multiply_u64(uint64_t x, uint64_t y) { // -------- +typedef struct wuffs_base__bitvec256__struct { + // elements_u64[0] holds the LSBs (least significant bits) and + // elements_u64[3] holds the MSBs (most significant bits). + uint64_t elements_u64[4]; +} wuffs_base__bitvec256; + +static inline wuffs_base__bitvec256 // +wuffs_base__make_bitvec256(uint64_t e00, + uint64_t e01, + uint64_t e02, + uint64_t e03) { + wuffs_base__bitvec256 res; + res.elements_u64[0] = e00; + res.elements_u64[1] = e01; + res.elements_u64[2] = e02; + res.elements_u64[3] = e03; + return res; +} + +static inline uint64_t // +wuffs_base__bitvec256__get_u64(const wuffs_base__bitvec256* b, uint32_t i) { + return b->elements_u64[i & 3]; +} + +// -------- + +// wuffs_base__optional_u63 is like a std::optional, but for C (not +// just C++) and the value can only hold 63 bits (not 64). +// +// Do not manipulate repr directly; it is a private implementation detail. +typedef struct wuffs_base__optional_u63__struct { + uint64_t repr; + +#ifdef __cplusplus + inline bool has_value() const; + inline uint64_t value() const; + inline uint64_t value_or(uint64_t default_value) const; +#endif // __cplusplus + +} wuffs_base__optional_u63; + +// wuffs_base__make_optional_u63 ignores value when has_value is false. +// +// Preconditions: +// - value < (1 << 63). +static inline wuffs_base__optional_u63 // +wuffs_base__make_optional_u63(bool has_value, uint64_t value) { + wuffs_base__optional_u63 res; + res.repr = has_value ? ((value << 1u) | 1u) : 0u; + return res; +} + +static inline bool // +wuffs_base__optional_u63__has_value(const wuffs_base__optional_u63* o) { + return o->repr; +} + +// wuffs_base__optional_u63__value returns zero when o does not have a value. +static inline uint64_t // +wuffs_base__optional_u63__value(const wuffs_base__optional_u63* o) { + return o->repr >> 1u; +} + +static inline uint64_t // +wuffs_base__optional_u63__value_or(const wuffs_base__optional_u63* o, + uint64_t default_value) { + return o->repr ? (o->repr >> 1u) : default_value; +} + +#ifdef __cplusplus + +inline bool // +wuffs_base__optional_u63::has_value() const { + return wuffs_base__optional_u63__has_value(this); +} + +inline uint64_t // +wuffs_base__optional_u63::value() const { + return wuffs_base__optional_u63__value(this); +} + +inline uint64_t // +wuffs_base__optional_u63::value_or(uint64_t default_value) const { + return wuffs_base__optional_u63__value_or(this, default_value); +} + +#endif // __cplusplus + +// -------- + // The "defined(__clang__)" isn't redundant. While vanilla clang defines // __GNUC__, clang-cl (which mimics MSVC's cl.exe) does not. #if (defined(__GNUC__) || defined(__clang__)) && (__SIZEOF_LONG__ == 8) @@ -1529,7 +1732,7 @@ wuffs_base__make_slice_u64(uint64_t* ptr, size_t len) { static inline wuffs_base__slice_u8 // wuffs_base__make_slice_u8_ij(uint8_t* ptr, size_t i, size_t j) { wuffs_base__slice_u8 ret; - ret.ptr = ptr + i; + ret.ptr = ptr ? (ptr + i) : NULL; ret.len = (j >= i) ? (j - i) : 0; return ret; } @@ -1537,7 +1740,7 @@ wuffs_base__make_slice_u8_ij(uint8_t* ptr, size_t i, size_t j) { static inline wuffs_base__slice_u16 // wuffs_base__make_slice_u16_ij(uint16_t* ptr, size_t i, size_t j) { wuffs_base__slice_u16 ret; - ret.ptr = ptr + i; + ret.ptr = ptr ? (ptr + i) : NULL; ret.len = (j >= i) ? (j - i) : 0; return ret; } @@ -1545,7 +1748,7 @@ wuffs_base__make_slice_u16_ij(uint16_t* ptr, size_t i, size_t j) { static inline wuffs_base__slice_u32 // wuffs_base__make_slice_u32_ij(uint32_t* ptr, size_t i, size_t j) { wuffs_base__slice_u32 ret; - ret.ptr = ptr + i; + ret.ptr = ptr ? (ptr + i) : NULL; ret.len = (j >= i) ? (j - i) : 0; return ret; } @@ -1553,7 +1756,7 @@ wuffs_base__make_slice_u32_ij(uint32_t* ptr, size_t i, size_t j) { static inline wuffs_base__slice_u64 // wuffs_base__make_slice_u64_ij(uint64_t* ptr, size_t i, size_t j) { wuffs_base__slice_u64 ret; - ret.ptr = ptr + i; + ret.ptr = ptr ? (ptr + i) : NULL; ret.len = (j >= i) ? (j - i) : 0; return ret; } @@ -1696,7 +1899,7 @@ wuffs_base__slice_u8__subslice_i(wuffs_base__slice_u8 s, uint64_t i) { if ((i <= SIZE_MAX) && (i <= s.len)) { return wuffs_base__make_slice_u8(s.ptr + i, ((size_t)(s.len - i))); } - return wuffs_base__make_slice_u8(NULL, 0); + return wuffs_base__empty_slice_u8(); } // wuffs_base__slice_u8__subslice_j returns s[:j]. @@ -1707,7 +1910,7 @@ wuffs_base__slice_u8__subslice_j(wuffs_base__slice_u8 s, uint64_t j) { if ((j <= SIZE_MAX) && (j <= s.len)) { return wuffs_base__make_slice_u8(s.ptr, ((size_t)j)); } - return wuffs_base__make_slice_u8(NULL, 0); + return wuffs_base__empty_slice_u8(); } // wuffs_base__slice_u8__subslice_ij returns s[i:j]. @@ -1720,7 +1923,7 @@ wuffs_base__slice_u8__subslice_ij(wuffs_base__slice_u8 s, if ((i <= j) && (j <= SIZE_MAX) && (j <= s.len)) { return wuffs_base__make_slice_u8(s.ptr + i, ((size_t)(j - i))); } - return wuffs_base__make_slice_u8(NULL, 0); + return wuffs_base__empty_slice_u8(); } // wuffs_base__table_u8__subtable_ij returns t[ix:jx, iy:jy]. @@ -1814,6 +2017,20 @@ WUFFS_BASE__MAYBE_STATIC int32_t // wuffs_base__magic_number_guess_fourcc(wuffs_base__slice_u8 prefix_data, bool prefix_closed); +// ---------------- Quirk Values + +// These constants are the value half of a key-value pair, where the key is +// WUFFS_BASE__QUIRK_QUALITY. +// +// In the Wuffs API, set_quirk takes a u64 value. These macro definitions are +// likewise unsigned values (uint64_t) but for this particular key, they are +// best interpreted as signed values (int64_t). "Lower-than-default quality" +// and "higher-than-default quality", as signed values, are -1 and +1. +// +// See doc/note/quirks.md for some more discussion about trade-offs. +#define WUFFS_BASE__QUIRK_QUALITY__VALUE__LOWER_QUALITY UINT64_MAX +#define WUFFS_BASE__QUIRK_QUALITY__VALUE__HIGHER_QUALITY ((uint64_t)1) + // ---------------- Ranges and Rects // See https://github.com/google/wuffs/blob/main/doc/note/ranges-and-rects.md @@ -3011,7 +3228,8 @@ wuffs_base__io_buffer__compact(wuffs_base__io_buffer* buf) { // wuffs_base__io_buffer__compact_retaining moves any written but unread bytes // closer to the start of the buffer. It retains H bytes of history (the most // recently read bytes), where H is min(buf->meta.ri, history_retain_length). -// A postcondition is that buf->meta.ri == H. +// It is therefore a no-op if history_retain_length is UINT64_MAX. A +// postcondition is that buf->meta.ri == H. // // wuffs_base__io_buffer__compact_retaining(0) is equivalent to // wuffs_base__io_buffer__compact(). @@ -3056,7 +3274,7 @@ wuffs_base__io_buffer__reader_length(const wuffs_base__io_buffer* buf) { static inline uint8_t* // wuffs_base__io_buffer__reader_pointer(const wuffs_base__io_buffer* buf) { - return buf ? (buf->data.ptr + buf->meta.ri) : NULL; + return (buf && buf->data.ptr) ? (buf->data.ptr + buf->meta.ri) : NULL; } static inline uint64_t // @@ -3066,7 +3284,8 @@ wuffs_base__io_buffer__reader_position(const wuffs_base__io_buffer* buf) { static inline wuffs_base__slice_u8 // wuffs_base__io_buffer__reader_slice(const wuffs_base__io_buffer* buf) { - return buf ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.ri, + return (buf && buf->data.ptr) + ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.ri, buf->meta.wi - buf->meta.ri) : wuffs_base__empty_slice_u8(); } @@ -3078,7 +3297,7 @@ wuffs_base__io_buffer__writer_length(const wuffs_base__io_buffer* buf) { static inline uint8_t* // wuffs_base__io_buffer__writer_pointer(const wuffs_base__io_buffer* buf) { - return buf ? (buf->data.ptr + buf->meta.wi) : NULL; + return (buf && buf->data.ptr) ? (buf->data.ptr + buf->meta.wi) : NULL; } static inline uint64_t // @@ -3088,7 +3307,8 @@ wuffs_base__io_buffer__writer_position(const wuffs_base__io_buffer* buf) { static inline wuffs_base__slice_u8 // wuffs_base__io_buffer__writer_slice(const wuffs_base__io_buffer* buf) { - return buf ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.wi, + return (buf && buf->data.ptr) + ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.wi, buf->data.len - buf->meta.wi) : wuffs_base__empty_slice_u8(); } @@ -3183,49 +3403,53 @@ wuffs_base__make_token(uint64_t repr) { // -------- +// clang-format off + +// -------- + #define WUFFS_BASE__TOKEN__LENGTH__MAX_INCL 0xFFFF -#define WUFFS_BASE__TOKEN__VALUE__SHIFT 17 -#define WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT 17 -#define WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT 42 -#define WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT 17 +#define WUFFS_BASE__TOKEN__VALUE__SHIFT 17 +#define WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT 17 +#define WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT 42 +#define WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT 17 #define WUFFS_BASE__TOKEN__VALUE_BASE_CATEGORY__SHIFT 38 -#define WUFFS_BASE__TOKEN__VALUE_BASE_DETAIL__SHIFT 17 -#define WUFFS_BASE__TOKEN__CONTINUED__SHIFT 16 -#define WUFFS_BASE__TOKEN__LENGTH__SHIFT 0 +#define WUFFS_BASE__TOKEN__VALUE_BASE_DETAIL__SHIFT 17 +#define WUFFS_BASE__TOKEN__CONTINUED__SHIFT 16 +#define WUFFS_BASE__TOKEN__LENGTH__SHIFT 0 -#define WUFFS_BASE__TOKEN__VALUE_EXTENSION__NUM_BITS 46 +#define WUFFS_BASE__TOKEN__VALUE_EXTENSION__NUM_BITS 46 // -------- -#define WUFFS_BASE__TOKEN__VBC__FILLER 0 -#define WUFFS_BASE__TOKEN__VBC__STRUCTURE 1 -#define WUFFS_BASE__TOKEN__VBC__STRING 2 -#define WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT 3 -#define WUFFS_BASE__TOKEN__VBC__LITERAL 4 -#define WUFFS_BASE__TOKEN__VBC__NUMBER 5 -#define WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_SIGNED 6 +#define WUFFS_BASE__TOKEN__VBC__FILLER 0 +#define WUFFS_BASE__TOKEN__VBC__STRUCTURE 1 +#define WUFFS_BASE__TOKEN__VBC__STRING 2 +#define WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT 3 +#define WUFFS_BASE__TOKEN__VBC__LITERAL 4 +#define WUFFS_BASE__TOKEN__VBC__NUMBER 5 +#define WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_SIGNED 6 #define WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_UNSIGNED 7 // -------- -#define WUFFS_BASE__TOKEN__VBD__FILLER__PUNCTUATION 0x00001 +#define WUFFS_BASE__TOKEN__VBD__FILLER__PUNCTUATION 0x00001 #define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_BLOCK 0x00002 -#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_LINE 0x00004 +#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_LINE 0x00004 // COMMENT_ANY is a bit-wise or of COMMENT_BLOCK AND COMMENT_LINE. -#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_ANY 0x00006 +#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_ANY 0x00006 // -------- -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH 0x00001 -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__POP 0x00002 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH 0x00001 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__POP 0x00002 #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE 0x00010 #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST 0x00020 #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT 0x00040 -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE 0x01000 -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST 0x02000 -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT 0x04000 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE 0x01000 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST 0x02000 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT 0x04000 // -------- @@ -3245,11 +3469,11 @@ wuffs_base__make_token(uint64_t repr) { // // The lack of any particular bit is conservative: it is valid for all-ASCII // strings, in a single- or multi-token chain, to have none of these bits set. -#define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_UTF_8 0x00001 -#define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_UTF_8 0x00002 +#define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_UTF_8 0x00001 +#define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_UTF_8 0x00002 #define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_SHOULD_BE_UTF_8 0x00004 -#define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_ASCII 0x00010 -#define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_ASCII 0x00020 +#define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_ASCII 0x00010 +#define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_ASCII 0x00020 #define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_SHOULD_BE_ASCII 0x00040 // CONVERT_D_DST_S_SRC means that multiples of S source bytes (possibly padded) @@ -3264,22 +3488,22 @@ wuffs_base__make_token(uint64_t repr) { // When src is the empty string, multiple conversion algorithms are applicable // (so these bits are not necessarily mutually exclusive), all producing the // same empty dst string. -#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP 0x00100 -#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY 0x00200 +#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP 0x00100 +#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY 0x00200 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_2_SRC_HEXADECIMAL 0x00400 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_4_SRC_BACKSLASH_X 0x00800 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_3_DST_4_SRC_BASE_64_STD 0x01000 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_3_DST_4_SRC_BASE_64_URL 0x02000 -#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_4_DST_5_SRC_ASCII_85 0x04000 +#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_4_DST_5_SRC_ASCII_85 0x04000 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_5_DST_8_SRC_BASE_32_HEX 0x08000 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_5_DST_8_SRC_BASE_32_STD 0x10000 // -------- #define WUFFS_BASE__TOKEN__VBD__LITERAL__UNDEFINED 0x00001 -#define WUFFS_BASE__TOKEN__VBD__LITERAL__NULL 0x00002 -#define WUFFS_BASE__TOKEN__VBD__LITERAL__FALSE 0x00004 -#define WUFFS_BASE__TOKEN__VBD__LITERAL__TRUE 0x00008 +#define WUFFS_BASE__TOKEN__VBD__LITERAL__NULL 0x00002 +#define WUFFS_BASE__TOKEN__VBD__LITERAL__FALSE 0x00004 +#define WUFFS_BASE__TOKEN__VBD__LITERAL__TRUE 0x00008 // -------- @@ -3292,8 +3516,8 @@ wuffs_base__make_token(uint64_t repr) { // For a source string of "+123" or "-0x9A", only the first two are valid. // // For a source string of "123.", only the first one is valid. -#define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_FLOATING_POINT 0x00001 -#define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_SIGNED 0x00002 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_FLOATING_POINT 0x00001 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_SIGNED 0x00002 #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_UNSIGNED 0x00004 #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_NEG_INF 0x00010 @@ -3305,11 +3529,15 @@ wuffs_base__make_token(uint64_t repr) { // "300", which are big-endian, little-endian or text. For binary formats, the // token length (after adjusting for FORMAT_IGNORE_ETC) discriminates // e.g. u16 little-endian vs u32 little-endian. -#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_BIG_ENDIAN 0x00100 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_BIG_ENDIAN 0x00100 #define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_LITTLE_ENDIAN 0x00200 -#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_TEXT 0x00400 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_TEXT 0x00400 + +#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_IGNORE_FIRST_BYTE 0x01000 + +// -------- -#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_IGNORE_FIRST_BYTE 0x01000 +// clang-format on // -------- @@ -3421,6 +3649,22 @@ wuffs_base__token::length() const { // -------- +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wcast-qual" +#endif + +static inline wuffs_base__token* // +wuffs_base__strip_const_from_token_ptr(const wuffs_base__token* ptr) { + return (wuffs_base__token*)ptr; +} + +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + +// -------- + typedef WUFFS_BASE__SLICE(wuffs_base__token) wuffs_base__slice_token; static inline wuffs_base__slice_token // @@ -3574,7 +3818,8 @@ wuffs_base__token_buffer__compact(wuffs_base__token_buffer* buf) { // wuffs_base__token_buffer__compact_retaining moves any written but unread // tokens closer to the start of the buffer. It retains H tokens of history // (the most recently read tokens), where H is min(buf->meta.ri, -// history_retain_length). A postcondition is that buf->meta.ri == H. +// history_retain_length). It is therefore a no-op if history_retain_length is +// UINT64_MAX. A postcondition is that buf->meta.ri == H. // // wuffs_base__token_buffer__compact_retaining(0) is equivalent to // wuffs_base__token_buffer__compact(). @@ -3730,51 +3975,51 @@ wuffs_base__token_buffer::writer_token_position() const { // // You can pass the C stdlib's malloc as the malloc_func. // -// It returns an empty slice (containing a NULL ptr field) if (num_uxx * -// sizeof(uintxx_t)) would overflow SIZE_MAX. +// It returns an empty slice (containing a NULL ptr field) if num_uxx is zero +// or if (num_uxx * sizeof(uintxx_t)) would overflow SIZE_MAX. static inline wuffs_base__slice_u8 // wuffs_base__malloc_slice_u8(void* (*malloc_func)(size_t), uint64_t num_u8) { - if (malloc_func && (num_u8 <= (SIZE_MAX / sizeof(uint8_t)))) { + if (malloc_func && num_u8 && (num_u8 <= (SIZE_MAX / sizeof(uint8_t)))) { void* p = (*malloc_func)((size_t)(num_u8 * sizeof(uint8_t))); if (p) { return wuffs_base__make_slice_u8((uint8_t*)(p), (size_t)num_u8); } } - return wuffs_base__make_slice_u8(NULL, 0); + return wuffs_base__empty_slice_u8(); } static inline wuffs_base__slice_u16 // wuffs_base__malloc_slice_u16(void* (*malloc_func)(size_t), uint64_t num_u16) { - if (malloc_func && (num_u16 <= (SIZE_MAX / sizeof(uint16_t)))) { + if (malloc_func && num_u16 && (num_u16 <= (SIZE_MAX / sizeof(uint16_t)))) { void* p = (*malloc_func)((size_t)(num_u16 * sizeof(uint16_t))); if (p) { return wuffs_base__make_slice_u16((uint16_t*)(p), (size_t)num_u16); } } - return wuffs_base__make_slice_u16(NULL, 0); + return wuffs_base__empty_slice_u16(); } static inline wuffs_base__slice_u32 // wuffs_base__malloc_slice_u32(void* (*malloc_func)(size_t), uint64_t num_u32) { - if (malloc_func && (num_u32 <= (SIZE_MAX / sizeof(uint32_t)))) { + if (malloc_func && num_u32 && (num_u32 <= (SIZE_MAX / sizeof(uint32_t)))) { void* p = (*malloc_func)((size_t)(num_u32 * sizeof(uint32_t))); if (p) { return wuffs_base__make_slice_u32((uint32_t*)(p), (size_t)num_u32); } } - return wuffs_base__make_slice_u32(NULL, 0); + return wuffs_base__empty_slice_u32(); } static inline wuffs_base__slice_u64 // wuffs_base__malloc_slice_u64(void* (*malloc_func)(size_t), uint64_t num_u64) { - if (malloc_func && (num_u64 <= (SIZE_MAX / sizeof(uint64_t)))) { + if (malloc_func && num_u64 && (num_u64 <= (SIZE_MAX / sizeof(uint64_t)))) { void* p = (*malloc_func)((size_t)(num_u64 * sizeof(uint64_t))); if (p) { return wuffs_base__make_slice_u64((uint64_t*)(p), (size_t)num_u64); } } - return wuffs_base__make_slice_u64(NULL, 0); + return wuffs_base__empty_slice_u64(); } // ---------------- Images @@ -3838,6 +4083,26 @@ wuffs_base__color_u32_argb_premul__as__color_u8_gray( return (uint8_t)(weighted_average >> 24); } +static inline uint16_t // +wuffs_base__color_u32_argb_premul__as__color_u16_alpha_gray_nonpremul( + wuffs_base__color_u32_argb_premul c) { + uint32_t a = 0xFF & (c >> 24); + if (a == 0) { + return 0; + } + uint32_t a16 = a * 0x101; + + uint32_t cr = 0xFF & (c >> 16); + cr = (cr * (0x101 * 0xFFFF)) / a16; + uint32_t cg = 0xFF & (c >> 8); + cg = (cg * (0x101 * 0xFFFF)) / a16; + uint32_t cb = 0xFF & (c >> 0); + cb = (cb * (0x101 * 0xFFFF)) / a16; + + uint32_t weighted_average = (19595 * cr) + (38470 * cg) + (7471 * cb) + 32768; + return (uint16_t)((a16 & 0xFF00) | (weighted_average >> 24)); +} + static inline uint16_t // wuffs_base__color_u32_argb_premul__as__color_u16_gray( wuffs_base__color_u32_argb_premul c) { @@ -4114,49 +4379,53 @@ wuffs_base__make_pixel_format(uint32_t repr) { // Common 8-bit-depth pixel formats. This list is not exhaustive; not all valid // wuffs_base__pixel_format values are present. -#define WUFFS_BASE__PIXEL_FORMAT__INVALID 0x00000000 +// clang-format off + +#define WUFFS_BASE__PIXEL_FORMAT__INVALID 0x00000000 -#define WUFFS_BASE__PIXEL_FORMAT__A 0x02000008 +#define WUFFS_BASE__PIXEL_FORMAT__A 0x02000008 -#define WUFFS_BASE__PIXEL_FORMAT__Y 0x20000008 -#define WUFFS_BASE__PIXEL_FORMAT__Y_16LE 0x2000000B -#define WUFFS_BASE__PIXEL_FORMAT__Y_16BE 0x2010000B -#define WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL 0x21000008 -#define WUFFS_BASE__PIXEL_FORMAT__YA_PREMUL 0x22000008 +#define WUFFS_BASE__PIXEL_FORMAT__Y 0x20000008 +#define WUFFS_BASE__PIXEL_FORMAT__Y_16LE 0x2000000B +#define WUFFS_BASE__PIXEL_FORMAT__Y_16BE 0x2010000B +#define WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL 0x21000088 +#define WUFFS_BASE__PIXEL_FORMAT__YA_PREMUL 0x22000088 -#define WUFFS_BASE__PIXEL_FORMAT__YCBCR 0x40020888 -#define WUFFS_BASE__PIXEL_FORMAT__YCBCRA_NONPREMUL 0x41038888 -#define WUFFS_BASE__PIXEL_FORMAT__YCBCRK 0x50038888 +#define WUFFS_BASE__PIXEL_FORMAT__YCBCR 0x40020888 +#define WUFFS_BASE__PIXEL_FORMAT__YCBCRA_NONPREMUL 0x41038888 +#define WUFFS_BASE__PIXEL_FORMAT__YCBCRK 0x50038888 -#define WUFFS_BASE__PIXEL_FORMAT__YCOCG 0x60020888 -#define WUFFS_BASE__PIXEL_FORMAT__YCOCGA_NONPREMUL 0x61038888 -#define WUFFS_BASE__PIXEL_FORMAT__YCOCGK 0x70038888 +#define WUFFS_BASE__PIXEL_FORMAT__YCOCG 0x60020888 +#define WUFFS_BASE__PIXEL_FORMAT__YCOCGA_NONPREMUL 0x61038888 +#define WUFFS_BASE__PIXEL_FORMAT__YCOCGK 0x70038888 -#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL 0x81040008 -#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL 0x82040008 -#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY 0x83040008 +#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL 0x81040008 +#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL 0x82040008 +#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY 0x83040008 -#define WUFFS_BASE__PIXEL_FORMAT__BGR_565 0x80000565 -#define WUFFS_BASE__PIXEL_FORMAT__BGR 0x80000888 -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL 0x81008888 -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE 0x8100BBBB -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL 0x82008888 -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE 0x8200BBBB -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY 0x83008888 -#define WUFFS_BASE__PIXEL_FORMAT__BGRX 0x90008888 +#define WUFFS_BASE__PIXEL_FORMAT__BGR_565 0x80000565 +#define WUFFS_BASE__PIXEL_FORMAT__BGR 0x80000888 +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL 0x81008888 +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE 0x8100BBBB +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL 0x82008888 +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE 0x8200BBBB +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY 0x83008888 +#define WUFFS_BASE__PIXEL_FORMAT__BGRX 0x90008888 -#define WUFFS_BASE__PIXEL_FORMAT__RGB 0xA0000888 -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL 0xA1008888 -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE 0xA100BBBB -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL 0xA2008888 -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL_4X16LE 0xA200BBBB -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY 0xA3008888 -#define WUFFS_BASE__PIXEL_FORMAT__RGBX 0xB0008888 +#define WUFFS_BASE__PIXEL_FORMAT__RGB 0xA0000888 +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL 0xA1008888 +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE 0xA100BBBB +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL 0xA2008888 +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL_4X16LE 0xA200BBBB +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY 0xA3008888 +#define WUFFS_BASE__PIXEL_FORMAT__RGBX 0xB0008888 -#define WUFFS_BASE__PIXEL_FORMAT__CMY 0xC0020888 -#define WUFFS_BASE__PIXEL_FORMAT__CMYK 0xD0038888 +#define WUFFS_BASE__PIXEL_FORMAT__CMY 0xC0020888 +#define WUFFS_BASE__PIXEL_FORMAT__CMYK 0xD0038888 -extern const uint32_t wuffs_base__pixel_format__bits_per_channel[16]; +// clang-format on + +extern const uint32_t wuffs_private_impl__pixel_format__bits_per_channel[16]; static inline bool // wuffs_base__pixel_format__is_valid(const wuffs_base__pixel_format* f) { @@ -4170,10 +4439,14 @@ wuffs_base__pixel_format__bits_per_pixel(const wuffs_base__pixel_format* f) { if (((f->repr >> 16) & 0x03) != 0) { return 0; } - return wuffs_base__pixel_format__bits_per_channel[0x0F & (f->repr >> 0)] + - wuffs_base__pixel_format__bits_per_channel[0x0F & (f->repr >> 4)] + - wuffs_base__pixel_format__bits_per_channel[0x0F & (f->repr >> 8)] + - wuffs_base__pixel_format__bits_per_channel[0x0F & (f->repr >> 12)]; + return wuffs_private_impl__pixel_format__bits_per_channel[0x0F & + (f->repr >> 0)] + + wuffs_private_impl__pixel_format__bits_per_channel[0x0F & + (f->repr >> 4)] + + wuffs_private_impl__pixel_format__bits_per_channel[0x0F & + (f->repr >> 8)] + + wuffs_private_impl__pixel_format__bits_per_channel[0x0F & + (f->repr >> 12)]; } static inline bool // @@ -4391,15 +4664,20 @@ wuffs_base__pixel_config__set(wuffs_base__pixel_config* c, return; } if (pixfmt_repr) { - uint64_t wh = ((uint64_t)width) * ((uint64_t)height); - // TODO: handle things other than 1 byte per pixel. - if (wh <= ((uint64_t)SIZE_MAX)) { + do { +#if SIZE_MAX < 0xFFFFFFFFFFFFFFFFull + uint64_t wh = ((uint64_t)width) * ((uint64_t)height); + // TODO: handle things other than 1 byte per pixel. + if (wh > ((uint64_t)SIZE_MAX)) { + break; + } +#endif c->private_impl.pixfmt.repr = pixfmt_repr; c->private_impl.pixsub.repr = pixsub_repr; c->private_impl.width = width; c->private_impl.height = height; return; - } + } while (0); } c->private_impl.pixfmt.repr = 0; @@ -5117,7 +5395,7 @@ wuffs_base__pixel_buffer__palette(wuffs_base__pixel_buffer* pb) { tab->ptr, WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH); } } - return wuffs_base__make_slice_u8(NULL, 0); + return wuffs_base__empty_slice_u8(); } static inline wuffs_base__slice_u8 // @@ -6202,6 +6480,113 @@ struct wuffs_base__hasher_u64__struct { // -------- +extern const char wuffs_base__hasher_bitvec256__vtable_name[]; + +typedef struct wuffs_base__hasher_bitvec256__func_ptrs__struct { + wuffs_base__bitvec256 (*checksum_bitvec256)( + const void* self); + uint64_t (*get_quirk)( + const void* self, + uint32_t a_key); + wuffs_base__status (*set_quirk)( + void* self, + uint32_t a_key, + uint64_t a_value); + wuffs_base__empty_struct (*update)( + void* self, + wuffs_base__slice_u8 a_x); + wuffs_base__bitvec256 (*update_bitvec256)( + void* self, + wuffs_base__slice_u8 a_x); +} wuffs_base__hasher_bitvec256__func_ptrs; + +typedef struct wuffs_base__hasher_bitvec256__struct wuffs_base__hasher_bitvec256; + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_base__hasher_bitvec256__checksum_bitvec256( + const wuffs_base__hasher_bitvec256* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_bitvec256__get_quirk( + const wuffs_base__hasher_bitvec256* self, + uint32_t a_key); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__hasher_bitvec256__set_quirk( + wuffs_base__hasher_bitvec256* self, + uint32_t a_key, + uint64_t a_value); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__hasher_bitvec256__update( + wuffs_base__hasher_bitvec256* self, + wuffs_base__slice_u8 a_x); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_base__hasher_bitvec256__update_bitvec256( + wuffs_base__hasher_bitvec256* self, + wuffs_base__slice_u8 a_x); + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_base__hasher_bitvec256__struct { + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable first_vtable; + } private_impl; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; +#endif + + inline wuffs_base__bitvec256 + checksum_bitvec256() const { + return wuffs_base__hasher_bitvec256__checksum_bitvec256(this); + } + + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_base__hasher_bitvec256__get_quirk( + this, a_key); + } + + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_base__hasher_bitvec256__set_quirk( + this, a_key, a_value); + } + + inline wuffs_base__empty_struct + update( + wuffs_base__slice_u8 a_x) { + return wuffs_base__hasher_bitvec256__update( + this, a_x); + } + + inline wuffs_base__bitvec256 + update_bitvec256( + wuffs_base__slice_u8 a_x) { + return wuffs_base__hasher_bitvec256__update_bitvec256( + this, a_x); + } + +#endif // __cplusplus +}; // struct wuffs_base__hasher_bitvec256__struct + +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +// -------- + extern const char wuffs_base__image_decoder__vtable_name[]; typedef struct wuffs_base__image_decoder__func_ptrs__struct { @@ -6225,8 +6610,6 @@ typedef struct wuffs_base__image_decoder__func_ptrs__struct { uint64_t (*get_quirk)( const void* self, uint32_t a_key); - uint64_t (*history_retain_length)( - const void* self); uint32_t (*num_animation_loops)( const void* self); uint64_t (*num_decoded_frame_configs)( @@ -6291,11 +6674,6 @@ wuffs_base__image_decoder__get_quirk( const wuffs_base__image_decoder* self, uint32_t a_key); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__image_decoder__history_retain_length( - const wuffs_base__image_decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t wuffs_base__image_decoder__num_animation_loops( @@ -6398,11 +6776,6 @@ struct wuffs_base__image_decoder__struct { this, a_key); } - inline uint64_t - history_retain_length() const { - return wuffs_base__image_decoder__history_retain_length(this); - } - inline uint32_t num_animation_loops() const { return wuffs_base__image_decoder__num_animation_loops(this); @@ -6466,11 +6839,11 @@ struct wuffs_base__image_decoder__struct { extern const char wuffs_base__io_transformer__vtable_name[]; typedef struct wuffs_base__io_transformer__func_ptrs__struct { + wuffs_base__optional_u63 (*dst_history_retain_length)( + const void* self); uint64_t (*get_quirk)( const void* self, uint32_t a_key); - uint64_t (*history_retain_length)( - const void* self); wuffs_base__status (*set_quirk)( void* self, uint32_t a_key, @@ -6486,17 +6859,17 @@ typedef struct wuffs_base__io_transformer__func_ptrs__struct { typedef struct wuffs_base__io_transformer__struct wuffs_base__io_transformer; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_base__io_transformer__dst_history_retain_length( + const wuffs_base__io_transformer* self); + WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t wuffs_base__io_transformer__get_quirk( const wuffs_base__io_transformer* self, uint32_t a_key); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__io_transformer__history_retain_length( - const wuffs_base__io_transformer* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status wuffs_base__io_transformer__set_quirk( @@ -6531,6 +6904,11 @@ struct wuffs_base__io_transformer__struct { using unique_ptr = std::unique_ptr; #endif + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_base__io_transformer__dst_history_retain_length(this); + } + inline uint64_t get_quirk( uint32_t a_key) const { @@ -6538,11 +6916,6 @@ struct wuffs_base__io_transformer__struct { this, a_key); } - inline uint64_t - history_retain_length() const { - return wuffs_base__io_transformer__history_retain_length(this); - } - inline wuffs_base__status set_quirk( uint32_t a_key, @@ -6583,8 +6956,6 @@ typedef struct wuffs_base__token_decoder__func_ptrs__struct { uint64_t (*get_quirk)( const void* self, uint32_t a_key); - uint64_t (*history_retain_length)( - const void* self); wuffs_base__status (*set_quirk)( void* self, uint32_t a_key, @@ -6609,11 +6980,6 @@ wuffs_base__token_decoder__get_quirk( const wuffs_base__token_decoder* self, uint32_t a_key); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__token_decoder__history_retain_length( - const wuffs_base__token_decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status wuffs_base__token_decoder__set_quirk( @@ -6656,11 +7022,6 @@ struct wuffs_base__token_decoder__struct { this, a_key); } - inline uint64_t - history_retain_length() const { - return wuffs_base__token_decoder__history_retain_length(this); - } - inline wuffs_base__status set_quirk( uint32_t a_key, @@ -6918,9 +7279,7 @@ extern const char wuffs_bmp__error__unsupported_bmp_file[]; // ---------------- Public Consts -#define WUFFS_BMP__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 - -#define WUFFS_BMP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_BMP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u // ---------------- Struct Declarations @@ -7053,11 +7412,6 @@ wuffs_bmp__decoder__tell_me_more( wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_bmp__decoder__history_retain_length( - const wuffs_bmp__decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 wuffs_bmp__decoder__workbuf_len( @@ -7116,14 +7470,14 @@ struct wuffs_bmp__decoder__struct { bool f_rle_padded; wuffs_base__pixel_swizzler f_swizzler; - uint32_t p_decode_image_config[1]; - uint32_t p_do_decode_image_config[1]; - uint32_t p_decode_frame_config[1]; - uint32_t p_do_decode_frame_config[1]; - uint32_t p_decode_frame[1]; - uint32_t p_do_decode_frame[1]; - uint32_t p_tell_me_more[1]; - uint32_t p_read_palette[1]; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_tell_me_more; + uint32_t p_read_palette; } private_impl; struct { @@ -7132,14 +7486,14 @@ struct wuffs_bmp__decoder__struct { struct { uint64_t scratch; - } s_do_decode_image_config[1]; + } s_do_decode_image_config; struct { uint64_t scratch; - } s_do_decode_frame[1]; + } s_do_decode_frame; struct { uint32_t v_i; uint64_t scratch; - } s_read_palette[1]; + } s_read_palette; } private_data; #ifdef __cplusplus @@ -7283,11 +7637,6 @@ struct wuffs_bmp__decoder__struct { return wuffs_bmp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); } - inline uint64_t - history_retain_length() const { - return wuffs_bmp__decoder__history_retain_length(this); - } - inline wuffs_base__range_ii_u64 workbuf_len() const { return wuffs_bmp__decoder__workbuf_len(this); @@ -7316,9 +7665,9 @@ extern const char wuffs_bzip2__error__unsupported_block_randomization[]; // ---------------- Public Consts -#define WUFFS_BZIP2__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_BZIP2__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u -#define WUFFS_BZIP2__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_BZIP2__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u // ---------------- Struct Declarations @@ -7386,8 +7735,8 @@ wuffs_bzip2__decoder__set_quirk( uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_bzip2__decoder__history_retain_length( +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_bzip2__decoder__dst_history_retain_length( const wuffs_bzip2__decoder* self); WUFFS_BASE__GENERATED_C_CODE @@ -7452,12 +7801,12 @@ struct wuffs_bzip2__decoder__struct { uint32_t f_num_sections; uint32_t f_code_lengths_bitmask; - uint32_t p_transform_io[1]; - uint32_t p_do_transform_io[1]; - uint32_t p_prepare_block[1]; - uint32_t p_read_code_lengths[1]; - uint32_t p_flush_slow[1]; - uint32_t p_decode_huffman_slow[1]; + uint32_t p_transform_io; + uint32_t p_do_transform_io; + uint32_t p_prepare_block; + uint32_t p_read_code_lengths; + uint32_t p_flush_slow; + uint32_t p_decode_huffman_slow; } private_impl; struct { @@ -7474,15 +7823,15 @@ struct wuffs_bzip2__decoder__struct { uint32_t v_i; uint64_t v_tag; uint32_t v_final_checksum_want; - } s_do_transform_io[1]; + } s_do_transform_io; struct { uint32_t v_i; uint32_t v_selector; - } s_prepare_block[1]; + } s_prepare_block; struct { uint32_t v_i; uint32_t v_code_length; - } s_read_code_lengths[1]; + } s_read_code_lengths; struct { uint32_t v_flush_pointer; uint32_t v_flush_repeat_count; @@ -7491,10 +7840,10 @@ struct wuffs_bzip2__decoder__struct { uint32_t v_block_size; uint8_t v_curr; uint64_t scratch; - } s_flush_slow[1]; + } s_flush_slow; struct { uint32_t v_node_index; - } s_decode_huffman_slow[1]; + } s_decode_huffman_slow; } private_data; #ifdef __cplusplus @@ -7572,9 +7921,9 @@ struct wuffs_bzip2__decoder__struct { return wuffs_bzip2__decoder__set_quirk(this, a_key, a_value); } - inline uint64_t - history_retain_length() const { - return wuffs_bzip2__decoder__history_retain_length(this); + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_bzip2__decoder__dst_history_retain_length(this); } inline wuffs_base__range_ii_u64 @@ -7606,25 +7955,23 @@ extern const char wuffs_cbor__error__unsupported_recursion_depth[]; // ---------------- Public Consts -#define WUFFS_CBOR__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_CBOR__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u -#define WUFFS_CBOR__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_CBOR__DECODER_DEPTH_MAX_INCL 1024u -#define WUFFS_CBOR__DECODER_DEPTH_MAX_INCL 1024 +#define WUFFS_CBOR__DECODER_DST_TOKEN_BUFFER_LENGTH_MIN_INCL 2u -#define WUFFS_CBOR__DECODER_DST_TOKEN_BUFFER_LENGTH_MIN_INCL 2 +#define WUFFS_CBOR__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 9u -#define WUFFS_CBOR__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 9 +#define WUFFS_CBOR__TOKEN_VALUE_MAJOR 787997u -#define WUFFS_CBOR__TOKEN_VALUE_MAJOR 787997 +#define WUFFS_CBOR__TOKEN_VALUE_MINOR__DETAIL_MASK 262143u -#define WUFFS_CBOR__TOKEN_VALUE_MINOR__DETAIL_MASK 262143 +#define WUFFS_CBOR__TOKEN_VALUE_MINOR__MINUS_1_MINUS_X 16777216u -#define WUFFS_CBOR__TOKEN_VALUE_MINOR__MINUS_1_MINUS_X 16777216 +#define WUFFS_CBOR__TOKEN_VALUE_MINOR__SIMPLE_VALUE 8388608u -#define WUFFS_CBOR__TOKEN_VALUE_MINOR__SIMPLE_VALUE 8388608 - -#define WUFFS_CBOR__TOKEN_VALUE_MINOR__TAG 4194304 +#define WUFFS_CBOR__TOKEN_VALUE_MINOR__TAG 4194304u // ---------------- Struct Declarations @@ -7691,11 +8038,6 @@ wuffs_cbor__decoder__set_quirk( uint32_t a_key, uint64_t a_value); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_cbor__decoder__history_retain_length( - const wuffs_cbor__decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 wuffs_cbor__decoder__workbuf_len( @@ -7738,7 +8080,7 @@ struct wuffs_cbor__decoder__struct { bool f_end_of_data; - uint32_t p_decode_tokens[1]; + uint32_t p_decode_tokens; } private_impl; struct { @@ -7750,7 +8092,7 @@ struct wuffs_cbor__decoder__struct { uint32_t v_depth; bool v_tagged; uint8_t v_indefinite_string_major_type; - } s_decode_tokens[1]; + } s_decode_tokens; } private_data; #ifdef __cplusplus @@ -7828,11 +8170,6 @@ struct wuffs_cbor__decoder__struct { return wuffs_cbor__decoder__set_quirk(this, a_key, a_value); } - inline uint64_t - history_retain_length() const { - return wuffs_cbor__decoder__history_retain_length(this); - } - inline wuffs_base__range_ii_u64 workbuf_len() const { return wuffs_cbor__decoder__workbuf_len(this); @@ -8074,6 +8411,227 @@ struct wuffs_crc32__ieee_hasher__struct { #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC32) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC64) || defined(WUFFS_NONMONOLITHIC) + +// ---------------- Status Codes + +// ---------------- Public Consts + +// ---------------- Struct Declarations + +typedef struct wuffs_crc64__ecma_hasher__struct wuffs_crc64__ecma_hasher; + +#ifdef __cplusplus +extern "C" { +#endif + +// ---------------- Public Initializer Prototypes + +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_crc64__ecma_hasher__initialize( + wuffs_crc64__ecma_hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); + +size_t +sizeof__wuffs_crc64__ecma_hasher(void); + +// ---------------- Allocs + +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. + +wuffs_crc64__ecma_hasher* +wuffs_crc64__ecma_hasher__alloc(void); + +static inline wuffs_base__hasher_u64* +wuffs_crc64__ecma_hasher__alloc_as__wuffs_base__hasher_u64(void) { + return (wuffs_base__hasher_u64*)(wuffs_crc64__ecma_hasher__alloc()); +} + +// ---------------- Upcasts + +static inline wuffs_base__hasher_u64* +wuffs_crc64__ecma_hasher__upcast_as__wuffs_base__hasher_u64( + wuffs_crc64__ecma_hasher* p) { + return (wuffs_base__hasher_u64*)p; +} + +// ---------------- Public Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_crc64__ecma_hasher__get_quirk( + const wuffs_crc64__ecma_hasher* self, + uint32_t a_key); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_crc64__ecma_hasher__set_quirk( + wuffs_crc64__ecma_hasher* self, + uint32_t a_key, + uint64_t a_value); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__update( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_crc64__ecma_hasher__update_u64( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_crc64__ecma_hasher__checksum_u64( + const wuffs_crc64__ecma_hasher* self); + +#ifdef __cplusplus +} // extern "C" +#endif + +// ---------------- Struct Definitions + +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_crc64__ecma_hasher__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__hasher_u64; + wuffs_base__vtable null_vtable; + + uint64_t f_state; + + wuffs_base__empty_struct (*choosy_up)( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); + } private_impl; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_crc64__ecma_hasher__alloc()); + } + + static inline wuffs_base__hasher_u64::unique_ptr + alloc_as__wuffs_base__hasher_u64() { + return wuffs_base__hasher_u64::unique_ptr( + wuffs_crc64__ecma_hasher__alloc_as__wuffs_base__hasher_u64()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_crc64__ecma_hasher__struct() = delete; + wuffs_crc64__ecma_hasher__struct(const wuffs_crc64__ecma_hasher__struct&) = delete; + wuffs_crc64__ecma_hasher__struct& operator=( + const wuffs_crc64__ecma_hasher__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) + + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_crc64__ecma_hasher__initialize( + this, sizeof_star_self, wuffs_version, options); + } + + inline wuffs_base__hasher_u64* + upcast_as__wuffs_base__hasher_u64() { + return (wuffs_base__hasher_u64*)this; + } + + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_crc64__ecma_hasher__get_quirk(this, a_key); + } + + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_crc64__ecma_hasher__set_quirk(this, a_key, a_value); + } + + inline wuffs_base__empty_struct + update( + wuffs_base__slice_u8 a_x) { + return wuffs_crc64__ecma_hasher__update(this, a_x); + } + + inline uint64_t + update_u64( + wuffs_base__slice_u8 a_x) { + return wuffs_crc64__ecma_hasher__update_u64(this, a_x); + } + + inline uint64_t + checksum_u64() const { + return wuffs_crc64__ecma_hasher__checksum_u64(this); + } + +#endif // __cplusplus +}; // struct wuffs_crc64__ecma_hasher__struct + +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC64) || defined(WUFFS_NONMONOLITHIC) + #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes @@ -8095,9 +8653,9 @@ extern const char wuffs_deflate__error__truncated_input[]; // ---------------- Public Consts -#define WUFFS_DEFLATE__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_DEFLATE__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u -#define WUFFS_DEFLATE__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1 +#define WUFFS_DEFLATE__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1u // ---------------- Struct Declarations @@ -8171,8 +8729,8 @@ wuffs_deflate__decoder__set_quirk( uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_deflate__decoder__history_retain_length( +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_deflate__decoder__dst_history_retain_length( const wuffs_deflate__decoder* self); WUFFS_BASE__GENERATED_C_CODE @@ -8222,16 +8780,16 @@ struct wuffs_deflate__decoder__struct { uint32_t f_n_huffs_bits[2]; bool f_end_of_block; - uint32_t p_transform_io[1]; - uint32_t p_do_transform_io[1]; - uint32_t p_decode_blocks[1]; - uint32_t p_decode_uncompressed[1]; - uint32_t p_init_dynamic_huffman[1]; + uint32_t p_transform_io; + uint32_t p_do_transform_io; + uint32_t p_decode_blocks; + uint32_t p_decode_uncompressed; + uint32_t p_init_dynamic_huffman; wuffs_base__status (*choosy_decode_huffman_fast64)( wuffs_deflate__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src); - uint32_t p_decode_huffman_slow[1]; + uint32_t p_decode_huffman_slow; } private_impl; struct { @@ -8241,11 +8799,11 @@ struct wuffs_deflate__decoder__struct { struct { uint32_t v_final; - } s_decode_blocks[1]; + } s_decode_blocks; struct { uint32_t v_length; uint64_t scratch; - } s_decode_uncompressed[1]; + } s_decode_uncompressed; struct { uint32_t v_bits; uint32_t v_n_bits; @@ -8257,7 +8815,7 @@ struct wuffs_deflate__decoder__struct { uint32_t v_n_extra_bits; uint8_t v_rep_symbol; uint32_t v_rep_count; - } s_init_dynamic_huffman[1]; + } s_init_dynamic_huffman; struct { uint32_t v_bits; uint32_t v_n_bits; @@ -8269,7 +8827,7 @@ struct wuffs_deflate__decoder__struct { uint32_t v_length; uint32_t v_dist_minus_1; uint64_t scratch; - } s_decode_huffman_slow[1]; + } s_decode_huffman_slow; } private_data; #ifdef __cplusplus @@ -8353,9 +8911,9 @@ struct wuffs_deflate__decoder__struct { return wuffs_deflate__decoder__set_quirk(this, a_key, a_value); } - inline uint64_t - history_retain_length() const { - return wuffs_deflate__decoder__history_retain_length(this); + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_deflate__decoder__dst_history_retain_length(this); } inline wuffs_base__range_ii_u64 @@ -8393,23 +8951,21 @@ extern const char wuffs_gif__error__truncated_input[]; // ---------------- Public Consts -#define WUFFS_GIF__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_GIF__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u -#define WUFFS_GIF__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_GIF__QUIRK_DELAY_NUM_DECODED_FRAMES 1041635328u -#define WUFFS_GIF__QUIRK_DELAY_NUM_DECODED_FRAMES 1041635328 +#define WUFFS_GIF__QUIRK_FIRST_FRAME_LOCAL_PALETTE_MEANS_BLACK_BACKGROUND 1041635329u -#define WUFFS_GIF__QUIRK_FIRST_FRAME_LOCAL_PALETTE_MEANS_BLACK_BACKGROUND 1041635329 +#define WUFFS_GIF__QUIRK_HONOR_BACKGROUND_COLOR 1041635330u -#define WUFFS_GIF__QUIRK_HONOR_BACKGROUND_COLOR 1041635330 +#define WUFFS_GIF__QUIRK_IGNORE_TOO_MUCH_PIXEL_DATA 1041635331u -#define WUFFS_GIF__QUIRK_IGNORE_TOO_MUCH_PIXEL_DATA 1041635331 +#define WUFFS_GIF__QUIRK_IMAGE_BOUNDS_ARE_STRICT 1041635332u -#define WUFFS_GIF__QUIRK_IMAGE_BOUNDS_ARE_STRICT 1041635332 +#define WUFFS_GIF__QUIRK_REJECT_EMPTY_FRAME 1041635333u -#define WUFFS_GIF__QUIRK_REJECT_EMPTY_FRAME 1041635333 - -#define WUFFS_GIF__QUIRK_REJECT_EMPTY_PALETTE 1041635334 +#define WUFFS_GIF__QUIRK_REJECT_EMPTY_PALETTE 1041635334u // ---------------- Struct Declarations @@ -8518,11 +9074,6 @@ WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 wuffs_gif__decoder__frame_dirty_rect( const wuffs_gif__decoder* self); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_gif__decoder__history_retain_length( - const wuffs_gif__decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 wuffs_gif__decoder__workbuf_len( @@ -8627,25 +9178,25 @@ struct wuffs_gif__decoder__struct { uint32_t f_lzw_read_from_return_value; uint16_t f_lzw_prefixes[4096]; - uint32_t p_decode_image_config[1]; - uint32_t p_do_decode_image_config[1]; - uint32_t p_tell_me_more[1]; - uint32_t p_do_tell_me_more[1]; - uint32_t p_decode_frame_config[1]; - uint32_t p_do_decode_frame_config[1]; - uint32_t p_skip_frame[1]; - uint32_t p_decode_frame[1]; - uint32_t p_do_decode_frame[1]; - uint32_t p_decode_up_to_id_part1[1]; - uint32_t p_decode_header[1]; - uint32_t p_decode_lsd[1]; - uint32_t p_decode_extension[1]; - uint32_t p_skip_blocks[1]; - uint32_t p_decode_ae[1]; - uint32_t p_decode_gc[1]; - uint32_t p_decode_id_part0[1]; - uint32_t p_decode_id_part1[1]; - uint32_t p_decode_id_part2[1]; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_tell_me_more; + uint32_t p_do_tell_me_more; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_skip_frame; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_decode_up_to_id_part1; + uint32_t p_decode_header; + uint32_t p_decode_lsd; + uint32_t p_decode_extension; + uint32_t p_skip_blocks; + uint32_t p_decode_ae; + uint32_t p_decode_gc; + uint32_t p_decode_id_part0; + uint32_t p_decode_id_part1; + uint32_t p_decode_id_part2; } private_impl; struct { @@ -8658,24 +9209,23 @@ struct wuffs_gif__decoder__struct { struct { uint32_t v_background_color; - } s_do_decode_frame_config[1]; + } s_do_decode_frame_config; struct { uint64_t scratch; - } s_skip_frame[1]; + } s_skip_frame; struct { - uint8_t v_c[6]; - uint32_t v_i; - } s_decode_header[1]; + uint64_t scratch; + } s_decode_header; struct { uint8_t v_flags; uint8_t v_background_color_index; uint32_t v_num_palette_entries; uint32_t v_i; uint64_t scratch; - } s_decode_lsd[1]; + } s_decode_lsd; struct { uint64_t scratch; - } s_skip_blocks[1]; + } s_skip_blocks; struct { uint8_t v_block_size; bool v_is_animexts; @@ -8683,24 +9233,24 @@ struct wuffs_gif__decoder__struct { bool v_is_iccp; bool v_is_xmp; uint64_t scratch; - } s_decode_ae[1]; + } s_decode_ae; struct { uint64_t scratch; - } s_decode_gc[1]; + } s_decode_gc; struct { uint64_t scratch; - } s_decode_id_part0[1]; + } s_decode_id_part0; struct { uint8_t v_which_palette; uint32_t v_num_palette_entries; uint32_t v_i; uint64_t scratch; - } s_decode_id_part1[1]; + } s_decode_id_part1; struct { uint64_t v_block_size; bool v_need_block_size; uint64_t scratch; - } s_decode_id_part2[1]; + } s_decode_id_part2; } private_data; #ifdef __cplusplus @@ -8820,11 +9370,6 @@ struct wuffs_gif__decoder__struct { return wuffs_gif__decoder__frame_dirty_rect(this); } - inline uint64_t - history_retain_length() const { - return wuffs_gif__decoder__history_retain_length(this); - } - inline wuffs_base__range_ii_u64 workbuf_len() const { return wuffs_gif__decoder__workbuf_len(this); @@ -8873,9 +9418,9 @@ extern const char wuffs_gzip__error__truncated_input[]; // ---------------- Public Consts -#define WUFFS_GZIP__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_GZIP__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u -#define WUFFS_GZIP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1 +#define WUFFS_GZIP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1u // ---------------- Struct Declarations @@ -8943,8 +9488,8 @@ wuffs_gzip__decoder__set_quirk( uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_gzip__decoder__history_retain_length( +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_gzip__decoder__dst_history_retain_length( const wuffs_gzip__decoder* self); WUFFS_BASE__GENERATED_C_CODE @@ -8989,8 +9534,8 @@ struct wuffs_gzip__decoder__struct { bool f_ignore_checksum; - uint32_t p_transform_io[1]; - uint32_t p_do_transform_io[1]; + uint32_t p_transform_io; + uint32_t p_do_transform_io; } private_impl; struct { @@ -8999,11 +9544,11 @@ struct wuffs_gzip__decoder__struct { struct { uint8_t v_flags; - uint32_t v_checksum_got; - uint32_t v_decoded_length_got; + uint32_t v_checksum_have; + uint32_t v_decoded_length_have; uint32_t v_checksum_want; uint64_t scratch; - } s_do_transform_io[1]; + } s_do_transform_io; } private_data; #ifdef __cplusplus @@ -9081,9 +9626,9 @@ struct wuffs_gzip__decoder__struct { return wuffs_gzip__decoder__set_quirk(this, a_key, a_value); } - inline uint64_t - history_retain_length() const { - return wuffs_gzip__decoder__history_retain_length(this); + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_gzip__decoder__dst_history_retain_length(this); } inline wuffs_base__range_ii_u64 @@ -9117,8 +9662,10 @@ extern const char wuffs_jpeg__error__bad_sof_marker[]; extern const char wuffs_jpeg__error__bad_sos_marker[]; extern const char wuffs_jpeg__error__bad_header[]; extern const char wuffs_jpeg__error__bad_marker[]; +extern const char wuffs_jpeg__error__bad_scan_count[]; extern const char wuffs_jpeg__error__missing_huffman_table[]; extern const char wuffs_jpeg__error__missing_quantization_table[]; +extern const char wuffs_jpeg__error__rejected_progressive_jpeg[]; extern const char wuffs_jpeg__error__truncated_input[]; extern const char wuffs_jpeg__error__unsupported_arithmetic_coding[]; extern const char wuffs_jpeg__error__unsupported_color_model[]; @@ -9134,9 +9681,9 @@ extern const char wuffs_jpeg__error__unsupported_scan_count[]; // ---------------- Public Consts -#define WUFFS_JPEG__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_JPEG__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 51552191232u -#define WUFFS_JPEG__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 51552191232 +#define WUFFS_JPEG__QUIRK_REJECT_PROGRESSIVE_JPEGS 1220532224u // ---------------- Struct Declarations @@ -9269,11 +9816,6 @@ wuffs_jpeg__decoder__tell_me_more( wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_jpeg__decoder__history_retain_length( - const wuffs_jpeg__decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 wuffs_jpeg__decoder__workbuf_len( @@ -9368,6 +9910,13 @@ struct wuffs_jpeg__decoder__struct { uint32_t f_bitstream_ri; uint32_t f_bitstream_wi; bool f_bitstream_is_closed; + bool f_expect_multiple_scans; + bool f_use_lower_quality; + bool f_reject_progressive_jpegs; + bool f_swizzle_immediately; + wuffs_base__status f_swizzle_immediately_status; + uint32_t f_swizzle_immediately_b_offsets[10]; + uint32_t f_swizzle_immediately_c_offsets[5]; uint32_t f_bitstream_padding; uint16_t f_quant_tables[4][64]; uint16_t f_saved_quant_tables[4][64]; @@ -9381,28 +9930,29 @@ struct wuffs_jpeg__decoder__struct { wuffs_base__slice_u8 a_dst_buffer, uint64_t a_dst_stride, uint32_t a_q); - uint32_t p_decode_image_config[1]; - uint32_t p_do_decode_image_config[1]; - uint32_t p_decode_dqt[1]; - uint32_t p_decode_dri[1]; - uint32_t p_decode_appn[1]; - uint32_t p_decode_sof[1]; - uint32_t p_decode_frame_config[1]; - uint32_t p_do_decode_frame_config[1]; - uint32_t p_decode_frame[1]; - uint32_t p_do_decode_frame[1]; - uint32_t p_decode_dht[1]; - uint32_t p_decode_sos[1]; - uint32_t p_prepare_scan[1]; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_dqt; + uint32_t p_decode_dri; + uint32_t p_decode_appn; + uint32_t p_decode_sof; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_decode_dht; + uint32_t p_decode_sos; + uint32_t p_prepare_scan; wuffs_base__empty_struct (*choosy_load_mcu_blocks_for_single_component)( wuffs_jpeg__decoder* self, uint32_t a_mx, uint32_t a_my, wuffs_base__slice_u8 a_workbuf, uint32_t a_csel); - uint32_t p_skip_past_the_next_restart_marker[1]; + uint32_t p_skip_past_the_next_restart_marker; uint32_t (*choosy_decode_mcu)( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, uint32_t a_mx, uint32_t a_my); @@ -9411,6 +9961,7 @@ struct wuffs_jpeg__decoder__struct { struct { uint8_t f_bitstream_buffer[2048]; uint16_t f_mcu_blocks[10][64]; + uint8_t f_swizzle_immediately_buffer[640]; uint8_t f_swizzle_ycck_scratch_buffer_2k[2048]; uint8_t f_dht_temp_counts[16]; uint8_t f_dht_temp_bit_lengths[256]; @@ -9420,38 +9971,38 @@ struct wuffs_jpeg__decoder__struct { struct { uint8_t v_marker; uint64_t scratch; - } s_do_decode_image_config[1]; + } s_do_decode_image_config; struct { uint8_t v_q; uint32_t v_i; - } s_decode_dqt[1]; + } s_decode_dqt; struct { uint64_t scratch; - } s_decode_dri[1]; + } s_decode_dri; struct { uint64_t scratch; - } s_decode_appn[1]; + } s_decode_appn; struct { uint32_t v_i; uint64_t scratch; - } s_decode_sof[1]; + } s_decode_sof; struct { uint8_t v_marker; uint64_t scratch; - } s_do_decode_frame[1]; + } s_do_decode_frame; struct { uint8_t v_tc4_th; uint32_t v_total_count; uint32_t v_i; - } s_decode_dht[1]; + } s_decode_dht; struct { uint32_t v_my; uint32_t v_mx; - } s_decode_sos[1]; + } s_decode_sos; struct { uint32_t v_i; uint64_t scratch; - } s_prepare_scan[1]; + } s_prepare_scan; } private_data; #ifdef __cplusplus @@ -9595,11 +10146,6 @@ struct wuffs_jpeg__decoder__struct { return wuffs_jpeg__decoder__tell_me_more(this, a_dst, a_minfo, a_src); } - inline uint64_t - history_retain_length() const { - return wuffs_jpeg__decoder__history_retain_length(this); - } - inline wuffs_base__range_ii_u64 workbuf_len() const { return wuffs_jpeg__decoder__workbuf_len(this); @@ -9627,55 +10173,53 @@ extern const char wuffs_json__error__unsupported_recursion_depth[]; // ---------------- Public Consts -#define WUFFS_JSON__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 - -#define WUFFS_JSON__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_JSON__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u -#define WUFFS_JSON__DECODER_DEPTH_MAX_INCL 1024 +#define WUFFS_JSON__DECODER_DEPTH_MAX_INCL 1024u -#define WUFFS_JSON__DECODER_DST_TOKEN_BUFFER_LENGTH_MIN_INCL 1 +#define WUFFS_JSON__DECODER_DST_TOKEN_BUFFER_LENGTH_MIN_INCL 1u -#define WUFFS_JSON__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 100 +#define WUFFS_JSON__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 100u -#define WUFFS_JSON__QUIRK_ALLOW_ASCII_CONTROL_CODES 1225364480 +#define WUFFS_JSON__QUIRK_ALLOW_ASCII_CONTROL_CODES 1225364480u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_A 1225364481 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_A 1225364481u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_CAPITAL_U 1225364482 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_CAPITAL_U 1225364482u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_E 1225364483 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_E 1225364483u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_NEW_LINE 1225364484 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_NEW_LINE 1225364484u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_QUESTION_MARK 1225364485 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_QUESTION_MARK 1225364485u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_SINGLE_QUOTE 1225364486 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_SINGLE_QUOTE 1225364486u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_V 1225364487 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_V 1225364487u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_X_AS_CODE_POINTS 1225364489 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_X_AS_CODE_POINTS 1225364489u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_ZERO 1225364490 +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_ZERO 1225364490u -#define WUFFS_JSON__QUIRK_ALLOW_COMMENT_BLOCK 1225364491 +#define WUFFS_JSON__QUIRK_ALLOW_COMMENT_BLOCK 1225364491u -#define WUFFS_JSON__QUIRK_ALLOW_COMMENT_LINE 1225364492 +#define WUFFS_JSON__QUIRK_ALLOW_COMMENT_LINE 1225364492u -#define WUFFS_JSON__QUIRK_ALLOW_EXTRA_COMMA 1225364493 +#define WUFFS_JSON__QUIRK_ALLOW_EXTRA_COMMA 1225364493u -#define WUFFS_JSON__QUIRK_ALLOW_INF_NAN_NUMBERS 1225364494 +#define WUFFS_JSON__QUIRK_ALLOW_INF_NAN_NUMBERS 1225364494u -#define WUFFS_JSON__QUIRK_ALLOW_LEADING_ASCII_RECORD_SEPARATOR 1225364495 +#define WUFFS_JSON__QUIRK_ALLOW_LEADING_ASCII_RECORD_SEPARATOR 1225364495u -#define WUFFS_JSON__QUIRK_ALLOW_LEADING_UNICODE_BYTE_ORDER_MARK 1225364496 +#define WUFFS_JSON__QUIRK_ALLOW_LEADING_UNICODE_BYTE_ORDER_MARK 1225364496u -#define WUFFS_JSON__QUIRK_ALLOW_TRAILING_FILLER 1225364497 +#define WUFFS_JSON__QUIRK_ALLOW_TRAILING_FILLER 1225364497u -#define WUFFS_JSON__QUIRK_EXPECT_TRAILING_NEW_LINE_OR_EOF 1225364498 +#define WUFFS_JSON__QUIRK_EXPECT_TRAILING_NEW_LINE_OR_EOF 1225364498u -#define WUFFS_JSON__QUIRK_JSON_POINTER_ALLOW_TILDE_N_TILDE_R_TILDE_T 1225364499 +#define WUFFS_JSON__QUIRK_JSON_POINTER_ALLOW_TILDE_N_TILDE_R_TILDE_T 1225364499u -#define WUFFS_JSON__QUIRK_REPLACE_INVALID_UNICODE 1225364500 +#define WUFFS_JSON__QUIRK_REPLACE_INVALID_UNICODE 1225364500u // ---------------- Struct Declarations @@ -9742,11 +10286,6 @@ wuffs_json__decoder__set_quirk( uint32_t a_key, uint64_t a_value); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_json__decoder__history_retain_length( - const wuffs_json__decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 wuffs_json__decoder__workbuf_len( @@ -9794,11 +10333,11 @@ struct wuffs_json__decoder__struct { uint8_t f_trailer_stop; uint8_t f_comment_type; - uint32_t p_decode_tokens[1]; - uint32_t p_decode_leading[1]; - uint32_t p_decode_comment[1]; - uint32_t p_decode_inf_nan[1]; - uint32_t p_decode_trailer[1]; + uint32_t p_decode_tokens; + uint32_t p_decode_leading; + uint32_t p_decode_comment; + uint32_t p_decode_inf_nan; + uint32_t p_decode_trailer; } private_impl; struct { @@ -9808,7 +10347,7 @@ struct wuffs_json__decoder__struct { uint32_t v_depth; uint32_t v_expect; uint32_t v_expect_after_value; - } s_decode_tokens[1]; + } s_decode_tokens; } private_data; #ifdef __cplusplus @@ -9886,11 +10425,6 @@ struct wuffs_json__decoder__struct { return wuffs_json__decoder__set_quirk(this, a_key, a_value); } - inline uint64_t - history_retain_length() const { - return wuffs_json__decoder__history_retain_length(this); - } - inline wuffs_base__range_ii_u64 workbuf_len() const { return wuffs_json__decoder__workbuf_len(this); @@ -9911,24 +10445,33 @@ struct wuffs_json__decoder__struct { #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes -extern const char wuffs_lzw__error__bad_code[]; -extern const char wuffs_lzw__error__truncated_input[]; +extern const char wuffs_lzma__error__bad_lzma2_header[]; +extern const char wuffs_lzma__error__bad_bitstream_trailer[]; +extern const char wuffs_lzma__error__bad_code[]; +extern const char wuffs_lzma__error__bad_decoded_length[]; +extern const char wuffs_lzma__error__bad_distance[]; +extern const char wuffs_lzma__error__bad_header[]; +extern const char wuffs_lzma__error__truncated_input[]; +extern const char wuffs_lzma__error__unsupported_decoded_length[]; +extern const char wuffs_lzma__error__unsupported_properties[]; // ---------------- Public Consts -#define WUFFS_LZW__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_LZMA__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u -#define WUFFS_LZW__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_LZMA__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 4294967568u -#define WUFFS_LZW__QUIRK_LITERAL_WIDTH_PLUS_ONE 1348378624 +#define WUFFS_LZMA__QUIRK_ALLOW_NON_ZERO_INITIAL_BYTE 1348001792u + +#define WUFFS_LZMA__QUIRK_FORMAT_EXTENSION 1348001793u // ---------------- Struct Declarations -typedef struct wuffs_lzw__decoder__struct wuffs_lzw__decoder; +typedef struct wuffs_lzma__decoder__struct wuffs_lzma__decoder; #ifdef __cplusplus extern "C" { @@ -9943,14 +10486,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_lzw__decoder__initialize( - wuffs_lzw__decoder* self, +wuffs_lzma__decoder__initialize( + wuffs_lzma__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_lzw__decoder(void); +sizeof__wuffs_lzma__decoder(void); // ---------------- Allocs @@ -9960,19 +10503,19 @@ sizeof__wuffs_lzw__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_lzw__decoder* -wuffs_lzw__decoder__alloc(void); +wuffs_lzma__decoder* +wuffs_lzma__decoder__alloc(void); static inline wuffs_base__io_transformer* -wuffs_lzw__decoder__alloc_as__wuffs_base__io_transformer(void) { - return (wuffs_base__io_transformer*)(wuffs_lzw__decoder__alloc()); +wuffs_lzma__decoder__alloc_as__wuffs_base__io_transformer(void) { + return (wuffs_base__io_transformer*)(wuffs_lzma__decoder__alloc()); } // ---------------- Upcasts static inline wuffs_base__io_transformer* -wuffs_lzw__decoder__upcast_as__wuffs_base__io_transformer( - wuffs_lzw__decoder* p) { +wuffs_lzma__decoder__upcast_as__wuffs_base__io_transformer( + wuffs_lzma__decoder* p) { return (wuffs_base__io_transformer*)p; } @@ -9980,40 +10523,35 @@ wuffs_lzw__decoder__upcast_as__wuffs_base__io_transformer( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_lzw__decoder__get_quirk( - const wuffs_lzw__decoder* self, +wuffs_lzma__decoder__get_quirk( + const wuffs_lzma__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_lzw__decoder__set_quirk( - wuffs_lzw__decoder* self, +wuffs_lzma__decoder__set_quirk( + wuffs_lzma__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_lzw__decoder__history_retain_length( - const wuffs_lzw__decoder* self); +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzma__decoder__dst_history_retain_length( + const wuffs_lzma__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_lzw__decoder__workbuf_len( - const wuffs_lzw__decoder* self); +wuffs_lzma__decoder__workbuf_len( + const wuffs_lzma__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_lzw__decoder__transform_io( - wuffs_lzw__decoder* self, +wuffs_lzma__decoder__transform_io( + wuffs_lzma__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__slice_u8 -wuffs_lzw__decoder__flush( - wuffs_lzw__decoder* self); - #ifdef __cplusplus } // extern "C" #endif @@ -10027,7 +10565,7 @@ wuffs_lzw__decoder__flush( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_lzw__decoder__struct { +struct wuffs_lzma__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -10041,45 +10579,113 @@ struct wuffs_lzw__decoder__struct { wuffs_base__vtable vtable_for__wuffs_base__io_transformer; wuffs_base__vtable null_vtable; - uint32_t f_pending_literal_width_plus_one; - uint32_t f_literal_width; - uint32_t f_clear_code; - uint32_t f_end_code; - uint32_t f_save_code; - uint32_t f_prev_code; - uint32_t f_width; - uint32_t f_bits; - uint32_t f_n_bits; - uint32_t f_output_ri; - uint32_t f_output_wi; - uint32_t f_read_from_return_value; - uint16_t f_prefixes[4096]; - - uint32_t p_transform_io[1]; - uint32_t p_write_to[1]; + uint32_t f_lc; + uint32_t f_lp; + uint32_t f_pb; + uint32_t f_format_extension; + uint32_t f_dict_size; + uint32_t f_dict_workbuf_index; + uint32_t f_dict_seen; + uint64_t f_decoded_length; + uint64_t f_lzma2_encoded_length_have; + uint64_t f_lzma2_encoded_length_want; + bool f_lzma2_need_prob_reset; + bool f_lzma2_need_properties; + bool f_lzma2_need_dict_reset; + bool f_prev_lzma2_chunk_was_uncompressed; + bool f_allow_non_zero_initial_byte; + bool f_end_of_chunk; + uint8_t f_stashed_bytes[2]; + uint32_t f_stashed_bits; + uint32_t f_stashed_range; + uint32_t f_stashed_state; + uint32_t f_stashed_rep0; + uint32_t f_stashed_rep1; + uint32_t f_stashed_rep2; + uint32_t f_stashed_rep3; + uint64_t f_stashed_pos; + uint64_t f_stashed_pos_end; + + uint32_t p_decode_bitstream_slow; + uint32_t p_transform_io; + uint32_t p_do_transform_io; + uint32_t p_decode_bitstream; + uint32_t p_update_stashed_bytes; + uint32_t p_decode_optional_end_of_stream; } private_impl; struct { - uint8_t f_suffixes[4096][8]; - uint16_t f_lm1s[4096]; - uint8_t f_output[8199]; + uint16_t f_probs_ao00[192]; + uint16_t f_probs_ao20[12]; + uint16_t f_probs_ao40[12]; + uint16_t f_probs_ao41[192]; + uint16_t f_probs_ao60[12]; + uint16_t f_probs_ao63[12]; + uint16_t f_probs_match_len_low[16][8]; + uint16_t f_probs_match_len_mid[16][8]; + uint16_t f_probs_match_len_high[1][256]; + uint16_t f_probs_longrep_len_low[16][8]; + uint16_t f_probs_longrep_len_mid[16][8]; + uint16_t f_probs_longrep_len_high[1][256]; + uint16_t f_probs_slot[4][64]; + uint16_t f_probs_small_dist[128]; + uint16_t f_probs_large_dist[16]; + uint16_t f_probs_lit[16][768]; + + struct { + uint32_t v_bits; + uint32_t v_range; + uint32_t v_state; + uint32_t v_rep0; + uint32_t v_rep1; + uint32_t v_rep2; + uint32_t v_rep3; + uint32_t v_rep; + uint64_t v_pos; + uint64_t v_pos_end; + uint32_t v_lc; + uint64_t v_lp_mask; + uint64_t v_pb_mask; + uint32_t v_tree_node; + uint8_t v_prev_byte; + uint32_t v_match_byte; + uint32_t v_len_state; + uint32_t v_slot; + uint32_t v_len; + uint32_t v_lanl_offset; + uint32_t v_num_extra_bits; + uint32_t v_dist_extra_bits; + uint32_t v_i; + uint32_t v_index_lit; + uint32_t v_index_len; + uint32_t v_index_small_dist_base; + uint32_t v_index_small_dist_extra; + uint32_t v_index_large_dist; + uint32_t v_dist; + uint64_t scratch; + } s_decode_bitstream_slow; + struct { + uint8_t v_header_byte; + uint32_t v_length; + uint64_t scratch; + } s_do_transform_io; } private_data; #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_lzw__decoder__alloc()); + return unique_ptr(wuffs_lzma__decoder__alloc()); } static inline wuffs_base__io_transformer::unique_ptr alloc_as__wuffs_base__io_transformer() { return wuffs_base__io_transformer::unique_ptr( - wuffs_lzw__decoder__alloc_as__wuffs_base__io_transformer()); + wuffs_lzma__decoder__alloc_as__wuffs_base__io_transformer()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -10095,10 +10701,10 @@ struct wuffs_lzw__decoder__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_lzw__decoder__struct() = delete; - wuffs_lzw__decoder__struct(const wuffs_lzw__decoder__struct&) = delete; - wuffs_lzw__decoder__struct& operator=( - const wuffs_lzw__decoder__struct&) = delete; + wuffs_lzma__decoder__struct() = delete; + wuffs_lzma__decoder__struct(const wuffs_lzma__decoder__struct&) = delete; + wuffs_lzma__decoder__struct& operator=( + const wuffs_lzma__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -10118,7 +10724,7 @@ struct wuffs_lzw__decoder__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_lzw__decoder__initialize( + return wuffs_lzma__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } @@ -10130,24 +10736,24 @@ struct wuffs_lzw__decoder__struct { inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_lzw__decoder__get_quirk(this, a_key); + return wuffs_lzma__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_lzw__decoder__set_quirk(this, a_key, a_value); + return wuffs_lzma__decoder__set_quirk(this, a_key, a_value); } - inline uint64_t - history_retain_length() const { - return wuffs_lzw__decoder__history_retain_length(this); + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_lzma__decoder__dst_history_retain_length(this); } inline wuffs_base__range_ii_u64 workbuf_len() const { - return wuffs_lzw__decoder__workbuf_len(this); + return wuffs_lzma__decoder__workbuf_len(this); } inline wuffs_base__status @@ -10155,38 +10761,34 @@ struct wuffs_lzw__decoder__struct { wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf) { - return wuffs_lzw__decoder__transform_io(this, a_dst, a_src, a_workbuf); - } - - inline wuffs_base__slice_u8 - flush() { - return wuffs_lzw__decoder__flush(this); + return wuffs_lzma__decoder__transform_io(this, a_dst, a_src, a_workbuf); } #endif // __cplusplus -}; // struct wuffs_lzw__decoder__struct +}; // struct wuffs_lzma__decoder__struct #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) || defined(WUFFS_NONMONOLITHIC) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZIP) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes -extern const char wuffs_netpbm__error__bad_header[]; -extern const char wuffs_netpbm__error__truncated_input[]; -extern const char wuffs_netpbm__error__unsupported_netpbm_file[]; +extern const char wuffs_lzip__error__bad_checksum[]; +extern const char wuffs_lzip__error__bad_footer[]; +extern const char wuffs_lzip__error__bad_header[]; +extern const char wuffs_lzip__error__truncated_input[]; // ---------------- Public Consts -#define WUFFS_NETPBM__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_LZIP__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u -#define WUFFS_NETPBM__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_LZIP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 4294967568u // ---------------- Struct Declarations -typedef struct wuffs_netpbm__decoder__struct wuffs_netpbm__decoder; +typedef struct wuffs_lzip__decoder__struct wuffs_lzip__decoder; #ifdef __cplusplus extern "C" { @@ -10201,14 +10803,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_netpbm__decoder__initialize( - wuffs_netpbm__decoder* self, +wuffs_lzip__decoder__initialize( + wuffs_lzip__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_netpbm__decoder(void); +sizeof__wuffs_lzip__decoder(void); // ---------------- Allocs @@ -10218,112 +10820,54 @@ sizeof__wuffs_netpbm__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_netpbm__decoder* -wuffs_netpbm__decoder__alloc(void); +wuffs_lzip__decoder* +wuffs_lzip__decoder__alloc(void); -static inline wuffs_base__image_decoder* -wuffs_netpbm__decoder__alloc_as__wuffs_base__image_decoder(void) { - return (wuffs_base__image_decoder*)(wuffs_netpbm__decoder__alloc()); +static inline wuffs_base__io_transformer* +wuffs_lzip__decoder__alloc_as__wuffs_base__io_transformer(void) { + return (wuffs_base__io_transformer*)(wuffs_lzip__decoder__alloc()); } // ---------------- Upcasts -static inline wuffs_base__image_decoder* -wuffs_netpbm__decoder__upcast_as__wuffs_base__image_decoder( - wuffs_netpbm__decoder* p) { - return (wuffs_base__image_decoder*)p; +static inline wuffs_base__io_transformer* +wuffs_lzip__decoder__upcast_as__wuffs_base__io_transformer( + wuffs_lzip__decoder* p) { + return (wuffs_base__io_transformer*)p; } // ---------------- Public Function Prototypes WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__get_quirk( - const wuffs_netpbm__decoder* self, +wuffs_lzip__decoder__get_quirk( + const wuffs_lzip__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__set_quirk( - wuffs_netpbm__decoder* self, +wuffs_lzip__decoder__set_quirk( + wuffs_lzip__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_image_config( - wuffs_netpbm__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_frame_config( - wuffs_netpbm__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_frame( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_netpbm__decoder__frame_dirty_rect( - const wuffs_netpbm__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_netpbm__decoder__num_animation_loops( - const wuffs_netpbm__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__num_decoded_frame_configs( - const wuffs_netpbm__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__num_decoded_frames( - const wuffs_netpbm__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__restart_frame( - wuffs_netpbm__decoder* self, - uint64_t a_index, - uint64_t a_io_position); +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzip__decoder__dst_history_retain_length( + const wuffs_lzip__decoder* self); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_netpbm__decoder__set_report_metadata( - wuffs_netpbm__decoder* self, - uint32_t a_fourcc, - bool a_report); +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzip__decoder__workbuf_len( + const wuffs_lzip__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__tell_me_more( - wuffs_netpbm__decoder* self, +wuffs_lzip__decoder__transform_io( + wuffs_lzip__decoder* self, wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__history_retain_length( - const wuffs_netpbm__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_netpbm__decoder__workbuf_len( - const wuffs_netpbm__decoder* self); + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); #ifdef __cplusplus } // extern "C" @@ -10338,7 +10882,7 @@ wuffs_netpbm__decoder__workbuf_len( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_netpbm__decoder__struct { +struct wuffs_lzip__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -10349,42 +10893,41 @@ struct wuffs_netpbm__decoder__struct { struct { uint32_t magic; uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__image_decoder; + wuffs_base__vtable vtable_for__wuffs_base__io_transformer; wuffs_base__vtable null_vtable; - uint32_t f_pixfmt; - uint32_t f_width; - uint32_t f_height; - uint32_t f_max_value; - uint8_t f_call_sequence; - uint64_t f_frame_config_io_position; - uint32_t f_dst_x; - uint32_t f_dst_y; - wuffs_base__pixel_swizzler f_swizzler; + bool f_ignore_checksum; + uint64_t f_dsize_have; + uint64_t f_ssize_have; - uint32_t p_decode_image_config[1]; - uint32_t p_do_decode_image_config[1]; - uint32_t p_decode_frame_config[1]; - uint32_t p_do_decode_frame_config[1]; - uint32_t p_decode_frame[1]; - uint32_t p_do_decode_frame[1]; + uint32_t p_transform_io; + uint32_t p_do_transform_io; } private_impl; + struct { + wuffs_crc32__ieee_hasher f_crc32; + wuffs_lzma__decoder f_lzma; + + struct { + uint64_t scratch; + } s_do_transform_io; + } private_data; + #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_netpbm__decoder__alloc()); + return unique_ptr(wuffs_lzip__decoder__alloc()); } - static inline wuffs_base__image_decoder::unique_ptr - alloc_as__wuffs_base__image_decoder() { - return wuffs_base__image_decoder::unique_ptr( - wuffs_netpbm__decoder__alloc_as__wuffs_base__image_decoder()); + static inline wuffs_base__io_transformer::unique_ptr + alloc_as__wuffs_base__io_transformer() { + return wuffs_base__io_transformer::unique_ptr( + wuffs_lzip__decoder__alloc_as__wuffs_base__io_transformer()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -10400,10 +10943,10 @@ struct wuffs_netpbm__decoder__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_netpbm__decoder__struct() = delete; - wuffs_netpbm__decoder__struct(const wuffs_netpbm__decoder__struct&) = delete; - wuffs_netpbm__decoder__struct& operator=( - const wuffs_netpbm__decoder__struct&) = delete; + wuffs_lzip__decoder__struct() = delete; + wuffs_lzip__decoder__struct(const wuffs_lzip__decoder__struct&) = delete; + wuffs_lzip__decoder__struct& operator=( + const wuffs_lzip__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -10423,128 +10966,327 @@ struct wuffs_netpbm__decoder__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_netpbm__decoder__initialize( + return wuffs_lzip__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } - inline wuffs_base__image_decoder* - upcast_as__wuffs_base__image_decoder() { - return (wuffs_base__image_decoder*)this; + inline wuffs_base__io_transformer* + upcast_as__wuffs_base__io_transformer() { + return (wuffs_base__io_transformer*)this; } inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_netpbm__decoder__get_quirk(this, a_key); + return wuffs_lzip__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_netpbm__decoder__set_quirk(this, a_key, a_value); + return wuffs_lzip__decoder__set_quirk(this, a_key, a_value); } - inline wuffs_base__status - decode_image_config( - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - return wuffs_netpbm__decoder__decode_image_config(this, a_dst, a_src); + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_lzip__decoder__dst_history_retain_length(this); } - inline wuffs_base__status - decode_frame_config( - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - return wuffs_netpbm__decoder__decode_frame_config(this, a_dst, a_src); + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_lzip__decoder__workbuf_len(this); } inline wuffs_base__status - decode_frame( - wuffs_base__pixel_buffer* a_dst, + transform_io( + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - return wuffs_netpbm__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); - } - - inline wuffs_base__rect_ie_u32 - frame_dirty_rect() const { - return wuffs_netpbm__decoder__frame_dirty_rect(this); + wuffs_base__slice_u8 a_workbuf) { + return wuffs_lzip__decoder__transform_io(this, a_dst, a_src, a_workbuf); } - inline uint32_t - num_animation_loops() const { - return wuffs_netpbm__decoder__num_animation_loops(this); - } +#endif // __cplusplus +}; // struct wuffs_lzip__decoder__struct - inline uint64_t - num_decoded_frame_configs() const { - return wuffs_netpbm__decoder__num_decoded_frame_configs(this); - } +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - inline uint64_t - num_decoded_frames() const { - return wuffs_netpbm__decoder__num_decoded_frames(this); - } +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZIP) || defined(WUFFS_NONMONOLITHIC) - inline wuffs_base__status - restart_frame( - uint64_t a_index, - uint64_t a_io_position) { - return wuffs_netpbm__decoder__restart_frame(this, a_index, a_io_position); - } +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) || defined(WUFFS_NONMONOLITHIC) - inline wuffs_base__empty_struct - set_report_metadata( - uint32_t a_fourcc, - bool a_report) { - return wuffs_netpbm__decoder__set_report_metadata(this, a_fourcc, a_report); - } +// ---------------- Status Codes - inline wuffs_base__status - tell_me_more( - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - return wuffs_netpbm__decoder__tell_me_more(this, a_dst, a_minfo, a_src); - } +extern const char wuffs_lzw__error__bad_code[]; +extern const char wuffs_lzw__error__truncated_input[]; - inline uint64_t - history_retain_length() const { - return wuffs_netpbm__decoder__history_retain_length(this); - } +// ---------------- Public Consts - inline wuffs_base__range_ii_u64 - workbuf_len() const { - return wuffs_netpbm__decoder__workbuf_len(this); - } +#define WUFFS_LZW__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u -#endif // __cplusplus -}; // struct wuffs_netpbm__decoder__struct +#define WUFFS_LZW__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u -#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) +#define WUFFS_LZW__QUIRK_LITERAL_WIDTH_PLUS_ONE 1348378624u -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) || defined(WUFFS_NONMONOLITHIC) +// ---------------- Struct Declarations -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) || defined(WUFFS_NONMONOLITHIC) +typedef struct wuffs_lzw__decoder__struct wuffs_lzw__decoder; -// ---------------- Status Codes +#ifdef __cplusplus +extern "C" { +#endif -extern const char wuffs_nie__error__bad_header[]; -extern const char wuffs_nie__error__truncated_input[]; -extern const char wuffs_nie__error__unsupported_nie_file[]; +// ---------------- Public Initializer Prototypes -// ---------------- Public Consts +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_lzw__decoder__initialize( + wuffs_lzw__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); + +size_t +sizeof__wuffs_lzw__decoder(void); + +// ---------------- Allocs + +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. + +wuffs_lzw__decoder* +wuffs_lzw__decoder__alloc(void); + +static inline wuffs_base__io_transformer* +wuffs_lzw__decoder__alloc_as__wuffs_base__io_transformer(void) { + return (wuffs_base__io_transformer*)(wuffs_lzw__decoder__alloc()); +} + +// ---------------- Upcasts + +static inline wuffs_base__io_transformer* +wuffs_lzw__decoder__upcast_as__wuffs_base__io_transformer( + wuffs_lzw__decoder* p) { + return (wuffs_base__io_transformer*)p; +} + +// ---------------- Public Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_lzw__decoder__get_quirk( + const wuffs_lzw__decoder* self, + uint32_t a_key); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzw__decoder__set_quirk( + wuffs_lzw__decoder* self, + uint32_t a_key, + uint64_t a_value); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzw__decoder__dst_history_retain_length( + const wuffs_lzw__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzw__decoder__workbuf_len( + const wuffs_lzw__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzw__decoder__transform_io( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__slice_u8 +wuffs_lzw__decoder__flush( + wuffs_lzw__decoder* self); + +#ifdef __cplusplus +} // extern "C" +#endif + +// ---------------- Struct Definitions + +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_lzw__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__io_transformer; + wuffs_base__vtable null_vtable; + + uint32_t f_pending_literal_width_plus_one; + uint32_t f_literal_width; + uint32_t f_clear_code; + uint32_t f_end_code; + uint32_t f_save_code; + uint32_t f_prev_code; + uint32_t f_width; + uint32_t f_bits; + uint32_t f_n_bits; + uint32_t f_output_ri; + uint32_t f_output_wi; + uint32_t f_read_from_return_value; + uint16_t f_prefixes[4096]; + + uint32_t p_transform_io; + uint32_t p_write_to; + } private_impl; + + struct { + uint8_t f_suffixes[4096][8]; + uint16_t f_lm1s[4096]; + uint8_t f_output[8199]; + } private_data; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_lzw__decoder__alloc()); + } + + static inline wuffs_base__io_transformer::unique_ptr + alloc_as__wuffs_base__io_transformer() { + return wuffs_base__io_transformer::unique_ptr( + wuffs_lzw__decoder__alloc_as__wuffs_base__io_transformer()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_lzw__decoder__struct() = delete; + wuffs_lzw__decoder__struct(const wuffs_lzw__decoder__struct&) = delete; + wuffs_lzw__decoder__struct& operator=( + const wuffs_lzw__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) + + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_lzw__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); + } + + inline wuffs_base__io_transformer* + upcast_as__wuffs_base__io_transformer() { + return (wuffs_base__io_transformer*)this; + } + + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_lzw__decoder__get_quirk(this, a_key); + } + + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_lzw__decoder__set_quirk(this, a_key, a_value); + } + + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_lzw__decoder__dst_history_retain_length(this); + } + + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_lzw__decoder__workbuf_len(this); + } + + inline wuffs_base__status + transform_io( + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + return wuffs_lzw__decoder__transform_io(this, a_dst, a_src, a_workbuf); + } + + inline wuffs_base__slice_u8 + flush() { + return wuffs_lzw__decoder__flush(this); + } + +#endif // __cplusplus +}; // struct wuffs_lzw__decoder__struct + +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) || defined(WUFFS_NONMONOLITHIC) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) || defined(WUFFS_NONMONOLITHIC) + +// ---------------- Status Codes + +extern const char wuffs_netpbm__error__bad_header[]; +extern const char wuffs_netpbm__error__truncated_input[]; +extern const char wuffs_netpbm__error__unsupported_netpbm_file[]; -#define WUFFS_NIE__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +// ---------------- Public Consts -#define WUFFS_NIE__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_NETPBM__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u // ---------------- Struct Declarations -typedef struct wuffs_nie__decoder__struct wuffs_nie__decoder; +typedef struct wuffs_netpbm__decoder__struct wuffs_netpbm__decoder; #ifdef __cplusplus extern "C" { @@ -10559,14 +11301,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_nie__decoder__initialize( - wuffs_nie__decoder* self, +wuffs_netpbm__decoder__initialize( + wuffs_netpbm__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_nie__decoder(void); +sizeof__wuffs_netpbm__decoder(void); // ---------------- Allocs @@ -10576,19 +11318,19 @@ sizeof__wuffs_nie__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_nie__decoder* -wuffs_nie__decoder__alloc(void); +wuffs_netpbm__decoder* +wuffs_netpbm__decoder__alloc(void); static inline wuffs_base__image_decoder* -wuffs_nie__decoder__alloc_as__wuffs_base__image_decoder(void) { - return (wuffs_base__image_decoder*)(wuffs_nie__decoder__alloc()); +wuffs_netpbm__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_netpbm__decoder__alloc()); } // ---------------- Upcasts static inline wuffs_base__image_decoder* -wuffs_nie__decoder__upcast_as__wuffs_base__image_decoder( - wuffs_nie__decoder* p) { +wuffs_netpbm__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_netpbm__decoder* p) { return (wuffs_base__image_decoder*)p; } @@ -10596,35 +11338,35 @@ wuffs_nie__decoder__upcast_as__wuffs_base__image_decoder( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__get_quirk( - const wuffs_nie__decoder* self, +wuffs_netpbm__decoder__get_quirk( + const wuffs_netpbm__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__set_quirk( - wuffs_nie__decoder* self, +wuffs_netpbm__decoder__set_quirk( + wuffs_netpbm__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_image_config( - wuffs_nie__decoder* self, +wuffs_netpbm__decoder__decode_image_config( + wuffs_netpbm__decoder* self, wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_frame_config( - wuffs_nie__decoder* self, +wuffs_netpbm__decoder__decode_frame_config( + wuffs_netpbm__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_frame( - wuffs_nie__decoder* self, +wuffs_netpbm__decoder__decode_frame( + wuffs_netpbm__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__pixel_blend a_blend, @@ -10633,55 +11375,50 @@ wuffs_nie__decoder__decode_frame( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_nie__decoder__frame_dirty_rect( - const wuffs_nie__decoder* self); +wuffs_netpbm__decoder__frame_dirty_rect( + const wuffs_netpbm__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_nie__decoder__num_animation_loops( - const wuffs_nie__decoder* self); +wuffs_netpbm__decoder__num_animation_loops( + const wuffs_netpbm__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__num_decoded_frame_configs( - const wuffs_nie__decoder* self); +wuffs_netpbm__decoder__num_decoded_frame_configs( + const wuffs_netpbm__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__num_decoded_frames( - const wuffs_nie__decoder* self); +wuffs_netpbm__decoder__num_decoded_frames( + const wuffs_netpbm__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__restart_frame( - wuffs_nie__decoder* self, +wuffs_netpbm__decoder__restart_frame( + wuffs_netpbm__decoder* self, uint64_t a_index, uint64_t a_io_position); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_nie__decoder__set_report_metadata( - wuffs_nie__decoder* self, +wuffs_netpbm__decoder__set_report_metadata( + wuffs_netpbm__decoder* self, uint32_t a_fourcc, bool a_report); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__tell_me_more( - wuffs_nie__decoder* self, +wuffs_netpbm__decoder__tell_me_more( + wuffs_netpbm__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__history_retain_length( - const wuffs_nie__decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_nie__decoder__workbuf_len( - const wuffs_nie__decoder* self); +wuffs_netpbm__decoder__workbuf_len( + const wuffs_netpbm__decoder* self); #ifdef __cplusplus } // extern "C" @@ -10696,7 +11433,7 @@ wuffs_nie__decoder__workbuf_len( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_nie__decoder__struct { +struct wuffs_netpbm__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -10713,40 +11450,36 @@ struct wuffs_nie__decoder__struct { uint32_t f_pixfmt; uint32_t f_width; uint32_t f_height; + uint32_t f_max_value; uint8_t f_call_sequence; + uint64_t f_frame_config_io_position; uint32_t f_dst_x; uint32_t f_dst_y; wuffs_base__pixel_swizzler f_swizzler; - uint32_t p_decode_image_config[1]; - uint32_t p_do_decode_image_config[1]; - uint32_t p_decode_frame_config[1]; - uint32_t p_do_decode_frame_config[1]; - uint32_t p_decode_frame[1]; - uint32_t p_do_decode_frame[1]; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; } private_impl; - struct { - struct { - uint64_t scratch; - } s_do_decode_image_config[1]; - } private_data; - #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_nie__decoder__alloc()); + return unique_ptr(wuffs_netpbm__decoder__alloc()); } static inline wuffs_base__image_decoder::unique_ptr alloc_as__wuffs_base__image_decoder() { return wuffs_base__image_decoder::unique_ptr( - wuffs_nie__decoder__alloc_as__wuffs_base__image_decoder()); + wuffs_netpbm__decoder__alloc_as__wuffs_base__image_decoder()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -10762,10 +11495,10 @@ struct wuffs_nie__decoder__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_nie__decoder__struct() = delete; - wuffs_nie__decoder__struct(const wuffs_nie__decoder__struct&) = delete; - wuffs_nie__decoder__struct& operator=( - const wuffs_nie__decoder__struct&) = delete; + wuffs_netpbm__decoder__struct() = delete; + wuffs_netpbm__decoder__struct(const wuffs_netpbm__decoder__struct&) = delete; + wuffs_netpbm__decoder__struct& operator=( + const wuffs_netpbm__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -10785,7 +11518,7 @@ struct wuffs_nie__decoder__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_nie__decoder__initialize( + return wuffs_netpbm__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } @@ -10797,28 +11530,28 @@ struct wuffs_nie__decoder__struct { inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_nie__decoder__get_quirk(this, a_key); + return wuffs_netpbm__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_nie__decoder__set_quirk(this, a_key, a_value); + return wuffs_netpbm__decoder__set_quirk(this, a_key, a_value); } inline wuffs_base__status decode_image_config( wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { - return wuffs_nie__decoder__decode_image_config(this, a_dst, a_src); + return wuffs_netpbm__decoder__decode_image_config(this, a_dst, a_src); } inline wuffs_base__status decode_frame_config( wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { - return wuffs_nie__decoder__decode_frame_config(this, a_dst, a_src); + return wuffs_netpbm__decoder__decode_frame_config(this, a_dst, a_src); } inline wuffs_base__status @@ -10828,41 +11561,41 @@ struct wuffs_nie__decoder__struct { wuffs_base__pixel_blend a_blend, wuffs_base__slice_u8 a_workbuf, wuffs_base__decode_frame_options* a_opts) { - return wuffs_nie__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + return wuffs_netpbm__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); } inline wuffs_base__rect_ie_u32 frame_dirty_rect() const { - return wuffs_nie__decoder__frame_dirty_rect(this); + return wuffs_netpbm__decoder__frame_dirty_rect(this); } inline uint32_t num_animation_loops() const { - return wuffs_nie__decoder__num_animation_loops(this); + return wuffs_netpbm__decoder__num_animation_loops(this); } inline uint64_t num_decoded_frame_configs() const { - return wuffs_nie__decoder__num_decoded_frame_configs(this); + return wuffs_netpbm__decoder__num_decoded_frame_configs(this); } inline uint64_t num_decoded_frames() const { - return wuffs_nie__decoder__num_decoded_frames(this); + return wuffs_netpbm__decoder__num_decoded_frames(this); } inline wuffs_base__status restart_frame( uint64_t a_index, uint64_t a_io_position) { - return wuffs_nie__decoder__restart_frame(this, a_index, a_io_position); + return wuffs_netpbm__decoder__restart_frame(this, a_index, a_io_position); } inline wuffs_base__empty_struct set_report_metadata( uint32_t a_fourcc, bool a_report) { - return wuffs_nie__decoder__set_report_metadata(this, a_fourcc, a_report); + return wuffs_netpbm__decoder__set_report_metadata(this, a_fourcc, a_report); } inline wuffs_base__status @@ -10870,49 +11603,36 @@ struct wuffs_nie__decoder__struct { wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src) { - return wuffs_nie__decoder__tell_me_more(this, a_dst, a_minfo, a_src); - } - - inline uint64_t - history_retain_length() const { - return wuffs_nie__decoder__history_retain_length(this); + return wuffs_netpbm__decoder__tell_me_more(this, a_dst, a_minfo, a_src); } inline wuffs_base__range_ii_u64 workbuf_len() const { - return wuffs_nie__decoder__workbuf_len(this); + return wuffs_netpbm__decoder__workbuf_len(this); } #endif // __cplusplus -}; // struct wuffs_nie__decoder__struct +}; // struct wuffs_netpbm__decoder__struct #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) || defined(WUFFS_NONMONOLITHIC) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes -extern const char wuffs_zlib__note__dictionary_required[]; -extern const char wuffs_zlib__error__bad_checksum[]; -extern const char wuffs_zlib__error__bad_compression_method[]; -extern const char wuffs_zlib__error__bad_compression_window_size[]; -extern const char wuffs_zlib__error__bad_parity_check[]; -extern const char wuffs_zlib__error__incorrect_dictionary[]; -extern const char wuffs_zlib__error__truncated_input[]; +extern const char wuffs_nie__error__bad_header[]; +extern const char wuffs_nie__error__truncated_input[]; +extern const char wuffs_nie__error__unsupported_nie_file[]; // ---------------- Public Consts -#define WUFFS_ZLIB__QUIRK_JUST_RAW_DEFLATE 2113790976 - -#define WUFFS_ZLIB__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 - -#define WUFFS_ZLIB__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1 +#define WUFFS_NIE__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u // ---------------- Struct Declarations -typedef struct wuffs_zlib__decoder__struct wuffs_zlib__decoder; +typedef struct wuffs_nie__decoder__struct wuffs_nie__decoder; #ifdef __cplusplus extern "C" { @@ -10927,14 +11647,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_zlib__decoder__initialize( - wuffs_zlib__decoder* self, +wuffs_nie__decoder__initialize( + wuffs_nie__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_zlib__decoder(void); +sizeof__wuffs_nie__decoder(void); // ---------------- Allocs @@ -10944,65 +11664,107 @@ sizeof__wuffs_zlib__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_zlib__decoder* -wuffs_zlib__decoder__alloc(void); +wuffs_nie__decoder* +wuffs_nie__decoder__alloc(void); -static inline wuffs_base__io_transformer* -wuffs_zlib__decoder__alloc_as__wuffs_base__io_transformer(void) { - return (wuffs_base__io_transformer*)(wuffs_zlib__decoder__alloc()); +static inline wuffs_base__image_decoder* +wuffs_nie__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_nie__decoder__alloc()); } // ---------------- Upcasts -static inline wuffs_base__io_transformer* -wuffs_zlib__decoder__upcast_as__wuffs_base__io_transformer( - wuffs_zlib__decoder* p) { - return (wuffs_base__io_transformer*)p; +static inline wuffs_base__image_decoder* +wuffs_nie__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_nie__decoder* p) { + return (wuffs_base__image_decoder*)p; } // ---------------- Public Function Prototypes -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_zlib__decoder__dictionary_id( - const wuffs_zlib__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_zlib__decoder__add_dictionary( - wuffs_zlib__decoder* self, - wuffs_base__slice_u8 a_dict); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_zlib__decoder__get_quirk( - const wuffs_zlib__decoder* self, +wuffs_nie__decoder__get_quirk( + const wuffs_nie__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_zlib__decoder__set_quirk( - wuffs_zlib__decoder* self, +wuffs_nie__decoder__set_quirk( + wuffs_nie__decoder* self, uint32_t a_key, uint64_t a_value); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_image_config( + wuffs_nie__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_frame_config( + wuffs_nie__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_frame( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_nie__decoder__frame_dirty_rect( + const wuffs_nie__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_nie__decoder__num_animation_loops( + const wuffs_nie__decoder* self); + WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_zlib__decoder__history_retain_length( - const wuffs_zlib__decoder* self); +wuffs_nie__decoder__num_decoded_frame_configs( + const wuffs_nie__decoder* self); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_zlib__decoder__workbuf_len( - const wuffs_zlib__decoder* self); +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_nie__decoder__num_decoded_frames( + const wuffs_nie__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_zlib__decoder__transform_io( - wuffs_zlib__decoder* self, +wuffs_nie__decoder__restart_frame( + wuffs_nie__decoder* self, + uint64_t a_index, + uint64_t a_io_position); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_nie__decoder__set_report_metadata( + wuffs_nie__decoder* self, + uint32_t a_fourcc, + bool a_report); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__tell_me_more( + wuffs_nie__decoder* self, wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_nie__decoder__workbuf_len( + const wuffs_nie__decoder* self); #ifdef __cplusplus } // extern "C" @@ -11017,7 +11779,7 @@ wuffs_zlib__decoder__transform_io( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_zlib__decoder__struct { +struct wuffs_nie__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -11028,20 +11790,336 @@ struct wuffs_zlib__decoder__struct { struct { uint32_t magic; uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__io_transformer; + wuffs_base__vtable vtable_for__wuffs_base__image_decoder; wuffs_base__vtable null_vtable; - bool f_bad_call_sequence; - bool f_header_complete; + uint32_t f_pixfmt; + uint32_t f_width; + uint32_t f_height; + uint8_t f_call_sequence; + uint32_t f_dst_x; + uint32_t f_dst_y; + wuffs_base__pixel_swizzler f_swizzler; + + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + } private_impl; + + struct { + struct { + uint64_t scratch; + } s_do_decode_image_config; + } private_data; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_nie__decoder__alloc()); + } + + static inline wuffs_base__image_decoder::unique_ptr + alloc_as__wuffs_base__image_decoder() { + return wuffs_base__image_decoder::unique_ptr( + wuffs_nie__decoder__alloc_as__wuffs_base__image_decoder()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_nie__decoder__struct() = delete; + wuffs_nie__decoder__struct(const wuffs_nie__decoder__struct&) = delete; + wuffs_nie__decoder__struct& operator=( + const wuffs_nie__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) + + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_nie__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); + } + + inline wuffs_base__image_decoder* + upcast_as__wuffs_base__image_decoder() { + return (wuffs_base__image_decoder*)this; + } + + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_nie__decoder__get_quirk(this, a_key); + } + + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_nie__decoder__set_quirk(this, a_key, a_value); + } + + inline wuffs_base__status + decode_image_config( + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_nie__decoder__decode_image_config(this, a_dst, a_src); + } + + inline wuffs_base__status + decode_frame_config( + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_nie__decoder__decode_frame_config(this, a_dst, a_src); + } + + inline wuffs_base__status + decode_frame( + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + return wuffs_nie__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + } + + inline wuffs_base__rect_ie_u32 + frame_dirty_rect() const { + return wuffs_nie__decoder__frame_dirty_rect(this); + } + + inline uint32_t + num_animation_loops() const { + return wuffs_nie__decoder__num_animation_loops(this); + } + + inline uint64_t + num_decoded_frame_configs() const { + return wuffs_nie__decoder__num_decoded_frame_configs(this); + } + + inline uint64_t + num_decoded_frames() const { + return wuffs_nie__decoder__num_decoded_frames(this); + } + + inline wuffs_base__status + restart_frame( + uint64_t a_index, + uint64_t a_io_position) { + return wuffs_nie__decoder__restart_frame(this, a_index, a_io_position); + } + + inline wuffs_base__empty_struct + set_report_metadata( + uint32_t a_fourcc, + bool a_report) { + return wuffs_nie__decoder__set_report_metadata(this, a_fourcc, a_report); + } + + inline wuffs_base__status + tell_me_more( + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + return wuffs_nie__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + } + + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_nie__decoder__workbuf_len(this); + } + +#endif // __cplusplus +}; // struct wuffs_nie__decoder__struct + +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) || defined(WUFFS_NONMONOLITHIC) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) || defined(WUFFS_NONMONOLITHIC) + +// ---------------- Status Codes + +extern const char wuffs_zlib__note__dictionary_required[]; +extern const char wuffs_zlib__error__bad_checksum[]; +extern const char wuffs_zlib__error__bad_compression_method[]; +extern const char wuffs_zlib__error__bad_compression_window_size[]; +extern const char wuffs_zlib__error__bad_parity_check[]; +extern const char wuffs_zlib__error__incorrect_dictionary[]; +extern const char wuffs_zlib__error__truncated_input[]; + +// ---------------- Public Consts + +#define WUFFS_ZLIB__QUIRK_JUST_RAW_DEFLATE 2113790976u + +#define WUFFS_ZLIB__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u + +#define WUFFS_ZLIB__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1u + +// ---------------- Struct Declarations + +typedef struct wuffs_zlib__decoder__struct wuffs_zlib__decoder; + +#ifdef __cplusplus +extern "C" { +#endif + +// ---------------- Public Initializer Prototypes + +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_zlib__decoder__initialize( + wuffs_zlib__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); + +size_t +sizeof__wuffs_zlib__decoder(void); + +// ---------------- Allocs + +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. + +wuffs_zlib__decoder* +wuffs_zlib__decoder__alloc(void); + +static inline wuffs_base__io_transformer* +wuffs_zlib__decoder__alloc_as__wuffs_base__io_transformer(void) { + return (wuffs_base__io_transformer*)(wuffs_zlib__decoder__alloc()); +} + +// ---------------- Upcasts + +static inline wuffs_base__io_transformer* +wuffs_zlib__decoder__upcast_as__wuffs_base__io_transformer( + wuffs_zlib__decoder* p) { + return (wuffs_base__io_transformer*)p; +} + +// ---------------- Public Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_zlib__decoder__dictionary_id( + const wuffs_zlib__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_zlib__decoder__add_dictionary( + wuffs_zlib__decoder* self, + wuffs_base__slice_u8 a_dict); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_zlib__decoder__get_quirk( + const wuffs_zlib__decoder* self, + uint32_t a_key); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_zlib__decoder__set_quirk( + wuffs_zlib__decoder* self, + uint32_t a_key, + uint64_t a_value); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_zlib__decoder__dst_history_retain_length( + const wuffs_zlib__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_zlib__decoder__workbuf_len( + const wuffs_zlib__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_zlib__decoder__transform_io( + wuffs_zlib__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +#ifdef __cplusplus +} // extern "C" +#endif + +// ---------------- Struct Definitions + +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_zlib__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__io_transformer; + wuffs_base__vtable null_vtable; + + bool f_bad_call_sequence; + bool f_header_complete; bool f_got_dictionary; bool f_want_dictionary; bool f_quirks[1]; bool f_ignore_checksum; - uint32_t f_dict_id_got; + uint32_t f_dict_id_have; uint32_t f_dict_id_want; - uint32_t p_transform_io[1]; - uint32_t p_do_transform_io[1]; + uint32_t p_transform_io; + uint32_t p_do_transform_io; } private_impl; struct { @@ -11050,9 +12128,9 @@ struct wuffs_zlib__decoder__struct { wuffs_deflate__decoder f_flate; struct { - uint32_t v_checksum_got; + uint32_t v_checksum_have; uint64_t scratch; - } s_do_transform_io[1]; + } s_do_transform_io; } private_data; #ifdef __cplusplus @@ -11141,9 +12219,9 @@ struct wuffs_zlib__decoder__struct { return wuffs_zlib__decoder__set_quirk(this, a_key, a_value); } - inline uint64_t - history_retain_length() const { - return wuffs_zlib__decoder__history_retain_length(this); + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_zlib__decoder__dst_history_retain_length(this); } inline wuffs_base__range_ii_u64 @@ -11184,11 +12262,9 @@ extern const char wuffs_png__error__unsupported_png_file[]; // ---------------- Public Consts -#define WUFFS_PNG__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 +#define WUFFS_PNG__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 2251799562027015u -#define WUFFS_PNG__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 2251799562027015 - -#define WUFFS_PNG__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 8 +#define WUFFS_PNG__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 8u // ---------------- Struct Declarations @@ -11321,11 +12397,6 @@ wuffs_png__decoder__tell_me_more( wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_png__decoder__history_retain_length( - const wuffs_png__decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 wuffs_png__decoder__workbuf_len( @@ -11438,26 +12509,26 @@ struct wuffs_png__decoder__struct { wuffs_png__decoder* self, wuffs_base__slice_u8 a_curr, wuffs_base__slice_u8 a_prev); - uint32_t p_decode_image_config[1]; - uint32_t p_do_decode_image_config[1]; - uint32_t p_decode_ihdr[1]; - uint32_t p_decode_other_chunk[1]; - uint32_t p_decode_actl[1]; - uint32_t p_decode_chrm[1]; - uint32_t p_decode_fctl[1]; - uint32_t p_decode_gama[1]; - uint32_t p_decode_iccp[1]; - uint32_t p_decode_plte[1]; - uint32_t p_decode_srgb[1]; - uint32_t p_decode_trns[1]; - uint32_t p_decode_frame_config[1]; - uint32_t p_do_decode_frame_config[1]; - uint32_t p_skip_frame[1]; - uint32_t p_decode_frame[1]; - uint32_t p_do_decode_frame[1]; - uint32_t p_decode_pass[1]; - uint32_t p_tell_me_more[1]; - uint32_t p_do_tell_me_more[1]; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_ihdr; + uint32_t p_decode_other_chunk; + uint32_t p_decode_actl; + uint32_t p_decode_chrm; + uint32_t p_decode_fctl; + uint32_t p_decode_gama; + uint32_t p_decode_iccp; + uint32_t p_decode_plte; + uint32_t p_decode_srgb; + uint32_t p_decode_trns; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_skip_frame; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_decode_pass; + uint32_t p_tell_me_more; + uint32_t p_do_tell_me_more; wuffs_base__status (*choosy_filter_and_swizzle)( wuffs_png__decoder* self, wuffs_base__pixel_buffer* a_dst, @@ -11473,54 +12544,54 @@ struct wuffs_png__decoder__struct { struct { uint32_t v_checksum_have; uint64_t scratch; - } s_do_decode_image_config[1]; + } s_do_decode_image_config; struct { uint64_t scratch; - } s_decode_ihdr[1]; + } s_decode_ihdr; struct { uint64_t scratch; - } s_decode_other_chunk[1]; + } s_decode_other_chunk; struct { uint64_t scratch; - } s_decode_actl[1]; + } s_decode_actl; struct { uint64_t scratch; - } s_decode_chrm[1]; + } s_decode_chrm; struct { uint32_t v_x0; uint32_t v_x1; uint32_t v_y1; uint64_t scratch; - } s_decode_fctl[1]; + } s_decode_fctl; struct { uint64_t scratch; - } s_decode_gama[1]; + } s_decode_gama; struct { uint32_t v_num_entries; uint32_t v_i; uint64_t scratch; - } s_decode_plte[1]; + } s_decode_plte; struct { uint32_t v_i; uint32_t v_n; uint64_t scratch; - } s_decode_trns[1]; + } s_decode_trns; struct { uint64_t scratch; - } s_do_decode_frame_config[1]; + } s_do_decode_frame_config; struct { uint64_t scratch; - } s_skip_frame[1]; + } s_skip_frame; struct { uint64_t scratch; - } s_do_decode_frame[1]; + } s_do_decode_frame; struct { uint64_t scratch; - } s_decode_pass[1]; + } s_decode_pass; struct { wuffs_base__status v_zlib_status; uint64_t scratch; - } s_do_tell_me_more[1]; + } s_do_tell_me_more; } private_data; #ifdef __cplusplus @@ -11664,11 +12735,6 @@ struct wuffs_png__decoder__struct { return wuffs_png__decoder__tell_me_more(this, a_dst, a_minfo, a_src); } - inline uint64_t - history_retain_length() const { - return wuffs_png__decoder__history_retain_length(this); - } - inline wuffs_base__range_ii_u64 workbuf_len() const { return wuffs_png__decoder__workbuf_len(this); @@ -11681,24 +12747,21 @@ struct wuffs_png__decoder__struct { #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes -extern const char wuffs_tga__error__bad_header[]; -extern const char wuffs_tga__error__bad_run_length_encoding[]; -extern const char wuffs_tga__error__truncated_input[]; -extern const char wuffs_tga__error__unsupported_tga_file[]; +extern const char wuffs_qoi__error__bad_footer[]; +extern const char wuffs_qoi__error__bad_header[]; +extern const char wuffs_qoi__error__truncated_input[]; // ---------------- Public Consts -#define WUFFS_TGA__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 - -#define WUFFS_TGA__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 +#define WUFFS_QOI__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u // ---------------- Struct Declarations -typedef struct wuffs_tga__decoder__struct wuffs_tga__decoder; +typedef struct wuffs_qoi__decoder__struct wuffs_qoi__decoder; #ifdef __cplusplus extern "C" { @@ -11713,14 +12776,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_tga__decoder__initialize( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__initialize( + wuffs_qoi__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_tga__decoder(void); +sizeof__wuffs_qoi__decoder(void); // ---------------- Allocs @@ -11730,19 +12793,19 @@ sizeof__wuffs_tga__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_tga__decoder* -wuffs_tga__decoder__alloc(void); +wuffs_qoi__decoder* +wuffs_qoi__decoder__alloc(void); static inline wuffs_base__image_decoder* -wuffs_tga__decoder__alloc_as__wuffs_base__image_decoder(void) { - return (wuffs_base__image_decoder*)(wuffs_tga__decoder__alloc()); +wuffs_qoi__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_qoi__decoder__alloc()); } // ---------------- Upcasts static inline wuffs_base__image_decoder* -wuffs_tga__decoder__upcast_as__wuffs_base__image_decoder( - wuffs_tga__decoder* p) { +wuffs_qoi__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_qoi__decoder* p) { return (wuffs_base__image_decoder*)p; } @@ -11750,35 +12813,35 @@ wuffs_tga__decoder__upcast_as__wuffs_base__image_decoder( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__get_quirk( - const wuffs_tga__decoder* self, +wuffs_qoi__decoder__get_quirk( + const wuffs_qoi__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__set_quirk( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__set_quirk( + wuffs_qoi__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_image_config( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__decode_image_config( + wuffs_qoi__decoder* self, wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_frame_config( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__decode_frame_config( + wuffs_qoi__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_frame( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__decode_frame( + wuffs_qoi__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__pixel_blend a_blend, @@ -11787,55 +12850,50 @@ wuffs_tga__decoder__decode_frame( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_tga__decoder__frame_dirty_rect( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__frame_dirty_rect( + const wuffs_qoi__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_tga__decoder__num_animation_loops( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__num_animation_loops( + const wuffs_qoi__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__num_decoded_frame_configs( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__num_decoded_frame_configs( + const wuffs_qoi__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__num_decoded_frames( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__num_decoded_frames( + const wuffs_qoi__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__restart_frame( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__restart_frame( + wuffs_qoi__decoder* self, uint64_t a_index, uint64_t a_io_position); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_tga__decoder__set_report_metadata( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__set_report_metadata( + wuffs_qoi__decoder* self, uint32_t a_fourcc, bool a_report); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__tell_me_more( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__tell_me_more( + wuffs_qoi__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__history_retain_length( - const wuffs_tga__decoder* self); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_tga__decoder__workbuf_len( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__workbuf_len( + const wuffs_qoi__decoder* self); #ifdef __cplusplus } // extern "C" @@ -11850,7 +12908,7 @@ wuffs_tga__decoder__workbuf_len( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_tga__decoder__struct { +struct wuffs_qoi__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -11864,69 +12922,58 @@ struct wuffs_tga__decoder__struct { wuffs_base__vtable vtable_for__wuffs_base__image_decoder; wuffs_base__vtable null_vtable; + uint32_t f_pixfmt; uint32_t f_width; uint32_t f_height; + uint64_t f_remaining_pixels_times_4; uint8_t f_call_sequence; - uint8_t f_header_id_length; - uint8_t f_header_color_map_type; - uint8_t f_header_image_type; - uint16_t f_header_color_map_first_entry_index; - uint16_t f_header_color_map_length; - uint8_t f_header_color_map_entry_size; - uint8_t f_header_pixel_depth; - uint8_t f_header_image_descriptor; - bool f_opaque; - uint32_t f_scratch_bytes_per_pixel; - uint32_t f_src_bytes_per_pixel; - uint32_t f_src_pixfmt; - uint64_t f_frame_config_io_position; + uint32_t f_buffer_index; + uint32_t f_dst_x; + uint32_t f_dst_y; wuffs_base__pixel_swizzler f_swizzler; - uint32_t p_decode_image_config[1]; - uint32_t p_do_decode_image_config[1]; - uint32_t p_decode_frame_config[1]; - uint32_t p_do_decode_frame_config[1]; - uint32_t p_decode_frame[1]; - uint32_t p_do_decode_frame[1]; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_from_src_to_buffer; } private_impl; struct { - uint8_t f_dst_palette[1024]; - uint8_t f_src_palette[1024]; - uint8_t f_scratch[4]; + uint8_t f_pixel[4]; + uint8_t f_cache[256]; + uint8_t f_buffer[8196]; struct { - uint32_t v_i; uint64_t scratch; - } s_do_decode_image_config[1]; + } s_do_decode_image_config; struct { - uint64_t v_dst_bytes_per_pixel; - uint32_t v_dst_x; - uint32_t v_dst_y; - uint64_t v_mark; - uint32_t v_num_pixels32; - uint32_t v_lit_length; - uint32_t v_run_length; - uint64_t v_num_dst_bytes; uint64_t scratch; - } s_do_decode_frame[1]; + } s_do_decode_frame; + struct { + uint8_t v_dg; + uint32_t v_bi; + uint32_t v_bk; + } s_from_src_to_buffer; } private_data; #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_tga__decoder__alloc()); + return unique_ptr(wuffs_qoi__decoder__alloc()); } static inline wuffs_base__image_decoder::unique_ptr alloc_as__wuffs_base__image_decoder() { return wuffs_base__image_decoder::unique_ptr( - wuffs_tga__decoder__alloc_as__wuffs_base__image_decoder()); + wuffs_qoi__decoder__alloc_as__wuffs_base__image_decoder()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -11942,10 +12989,10 @@ struct wuffs_tga__decoder__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_tga__decoder__struct() = delete; - wuffs_tga__decoder__struct(const wuffs_tga__decoder__struct&) = delete; - wuffs_tga__decoder__struct& operator=( - const wuffs_tga__decoder__struct&) = delete; + wuffs_qoi__decoder__struct() = delete; + wuffs_qoi__decoder__struct(const wuffs_qoi__decoder__struct&) = delete; + wuffs_qoi__decoder__struct& operator=( + const wuffs_qoi__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -11965,7 +13012,7 @@ struct wuffs_tga__decoder__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_tga__decoder__initialize( + return wuffs_qoi__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } @@ -11977,28 +13024,28 @@ struct wuffs_tga__decoder__struct { inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_tga__decoder__get_quirk(this, a_key); + return wuffs_qoi__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_tga__decoder__set_quirk(this, a_key, a_value); + return wuffs_qoi__decoder__set_quirk(this, a_key, a_value); } inline wuffs_base__status decode_image_config( wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { - return wuffs_tga__decoder__decode_image_config(this, a_dst, a_src); + return wuffs_qoi__decoder__decode_image_config(this, a_dst, a_src); } inline wuffs_base__status decode_frame_config( wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { - return wuffs_tga__decoder__decode_frame_config(this, a_dst, a_src); + return wuffs_qoi__decoder__decode_frame_config(this, a_dst, a_src); } inline wuffs_base__status @@ -12008,41 +13055,41 @@ struct wuffs_tga__decoder__struct { wuffs_base__pixel_blend a_blend, wuffs_base__slice_u8 a_workbuf, wuffs_base__decode_frame_options* a_opts) { - return wuffs_tga__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + return wuffs_qoi__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); } inline wuffs_base__rect_ie_u32 frame_dirty_rect() const { - return wuffs_tga__decoder__frame_dirty_rect(this); + return wuffs_qoi__decoder__frame_dirty_rect(this); } inline uint32_t num_animation_loops() const { - return wuffs_tga__decoder__num_animation_loops(this); + return wuffs_qoi__decoder__num_animation_loops(this); } inline uint64_t num_decoded_frame_configs() const { - return wuffs_tga__decoder__num_decoded_frame_configs(this); + return wuffs_qoi__decoder__num_decoded_frame_configs(this); } inline uint64_t num_decoded_frames() const { - return wuffs_tga__decoder__num_decoded_frames(this); + return wuffs_qoi__decoder__num_decoded_frames(this); } inline wuffs_base__status restart_frame( uint64_t a_index, uint64_t a_io_position) { - return wuffs_tga__decoder__restart_frame(this, a_index, a_io_position); + return wuffs_qoi__decoder__restart_frame(this, a_index, a_io_position); } inline wuffs_base__empty_struct set_report_metadata( uint32_t a_fourcc, bool a_report) { - return wuffs_tga__decoder__set_report_metadata(this, a_fourcc, a_report); + return wuffs_qoi__decoder__set_report_metadata(this, a_fourcc, a_report); } inline wuffs_base__status @@ -12050,42 +13097,30 @@ struct wuffs_tga__decoder__struct { wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src) { - return wuffs_tga__decoder__tell_me_more(this, a_dst, a_minfo, a_src); - } - - inline uint64_t - history_retain_length() const { - return wuffs_tga__decoder__history_retain_length(this); + return wuffs_qoi__decoder__tell_me_more(this, a_dst, a_minfo, a_src); } inline wuffs_base__range_ii_u64 workbuf_len() const { - return wuffs_tga__decoder__workbuf_len(this); + return wuffs_qoi__decoder__workbuf_len(this); } #endif // __cplusplus -}; // struct wuffs_tga__decoder__struct +}; // struct wuffs_qoi__decoder__struct #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) || defined(WUFFS_NONMONOLITHIC) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes -extern const char wuffs_wbmp__error__bad_header[]; -extern const char wuffs_wbmp__error__truncated_input[]; - // ---------------- Public Consts -#define WUFFS_WBMP__DECODER_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0 - -#define WUFFS_WBMP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 - // ---------------- Struct Declarations -typedef struct wuffs_wbmp__decoder__struct wuffs_wbmp__decoder; +typedef struct wuffs_sha256__hasher__struct wuffs_sha256__hasher; #ifdef __cplusplus extern "C" { @@ -12100,14 +13135,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_wbmp__decoder__initialize( - wuffs_wbmp__decoder* self, +wuffs_sha256__hasher__initialize( + wuffs_sha256__hasher* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_wbmp__decoder(void); +sizeof__wuffs_sha256__hasher(void); // ---------------- Allocs @@ -12117,112 +13152,53 @@ sizeof__wuffs_wbmp__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_wbmp__decoder* -wuffs_wbmp__decoder__alloc(void); +wuffs_sha256__hasher* +wuffs_sha256__hasher__alloc(void); -static inline wuffs_base__image_decoder* -wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder(void) { - return (wuffs_base__image_decoder*)(wuffs_wbmp__decoder__alloc()); +static inline wuffs_base__hasher_bitvec256* +wuffs_sha256__hasher__alloc_as__wuffs_base__hasher_bitvec256(void) { + return (wuffs_base__hasher_bitvec256*)(wuffs_sha256__hasher__alloc()); } // ---------------- Upcasts -static inline wuffs_base__image_decoder* -wuffs_wbmp__decoder__upcast_as__wuffs_base__image_decoder( - wuffs_wbmp__decoder* p) { - return (wuffs_base__image_decoder*)p; +static inline wuffs_base__hasher_bitvec256* +wuffs_sha256__hasher__upcast_as__wuffs_base__hasher_bitvec256( + wuffs_sha256__hasher* p) { + return (wuffs_base__hasher_bitvec256*)p; } // ---------------- Public Function Prototypes WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__get_quirk( - const wuffs_wbmp__decoder* self, +wuffs_sha256__hasher__get_quirk( + const wuffs_sha256__hasher* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__set_quirk( - wuffs_wbmp__decoder* self, +wuffs_sha256__hasher__set_quirk( + wuffs_sha256__hasher* self, uint32_t a_key, uint64_t a_value); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_image_config( - wuffs_wbmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_frame_config( - wuffs_wbmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_frame( - wuffs_wbmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_wbmp__decoder__frame_dirty_rect( - const wuffs_wbmp__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_wbmp__decoder__num_animation_loops( - const wuffs_wbmp__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__num_decoded_frame_configs( - const wuffs_wbmp__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__num_decoded_frames( - const wuffs_wbmp__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__restart_frame( - wuffs_wbmp__decoder* self, - uint64_t a_index, - uint64_t a_io_position); - WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_wbmp__decoder__set_report_metadata( - wuffs_wbmp__decoder* self, - uint32_t a_fourcc, - bool a_report); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__tell_me_more( - wuffs_wbmp__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src); +wuffs_sha256__hasher__update( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__history_retain_length( - const wuffs_wbmp__decoder* self); +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_sha256__hasher__update_bitvec256( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_wbmp__decoder__workbuf_len( - const wuffs_wbmp__decoder* self); +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_sha256__hasher__checksum_bitvec256( + const wuffs_sha256__hasher* self); #ifdef __cplusplus } // extern "C" @@ -12237,7 +13213,7 @@ wuffs_wbmp__decoder__workbuf_len( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_wbmp__decoder__struct { +struct wuffs_sha256__hasher__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -12248,52 +13224,41 @@ struct wuffs_wbmp__decoder__struct { struct { uint32_t magic; uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__image_decoder; + wuffs_base__vtable vtable_for__wuffs_base__hasher_bitvec256; wuffs_base__vtable null_vtable; - uint32_t f_width; - uint32_t f_height; - uint8_t f_call_sequence; - uint64_t f_frame_config_io_position; - wuffs_base__pixel_swizzler f_swizzler; - - uint32_t p_decode_image_config[1]; - uint32_t p_do_decode_image_config[1]; - uint32_t p_decode_frame_config[1]; - uint32_t p_do_decode_frame_config[1]; - uint32_t p_decode_frame[1]; - uint32_t p_do_decode_frame[1]; + uint64_t f_length_modulo_u64; + bool f_length_overflows_u64; + uint8_t f_padding0; + uint8_t f_padding1; + uint8_t f_padding2; + uint32_t f_buf_len; + uint8_t f_buf_data[64]; + uint32_t f_h0; + uint32_t f_h1; + uint32_t f_h2; + uint32_t f_h3; + uint32_t f_h4; + uint32_t f_h5; + uint32_t f_h6; + uint32_t f_h7; } private_impl; - struct { - struct { - uint32_t v_i; - uint32_t v_p; - } s_do_decode_image_config[1]; - struct { - uint64_t v_dst_bytes_per_pixel; - uint32_t v_dst_x; - uint32_t v_dst_y; - uint8_t v_src[1]; - uint8_t v_c; - } s_do_decode_frame[1]; - } private_data; - #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_wbmp__decoder__alloc()); + return unique_ptr(wuffs_sha256__hasher__alloc()); } - static inline wuffs_base__image_decoder::unique_ptr - alloc_as__wuffs_base__image_decoder() { - return wuffs_base__image_decoder::unique_ptr( - wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder()); + static inline wuffs_base__hasher_bitvec256::unique_ptr + alloc_as__wuffs_base__hasher_bitvec256() { + return wuffs_base__hasher_bitvec256::unique_ptr( + wuffs_sha256__hasher__alloc_as__wuffs_base__hasher_bitvec256()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -12309,10 +13274,10 @@ struct wuffs_wbmp__decoder__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_wbmp__decoder__struct() = delete; - wuffs_wbmp__decoder__struct(const wuffs_wbmp__decoder__struct&) = delete; - wuffs_wbmp__decoder__struct& operator=( - const wuffs_wbmp__decoder__struct&) = delete; + wuffs_sha256__hasher__struct() = delete; + wuffs_sha256__hasher__struct(const wuffs_sha256__hasher__struct&) = delete; + wuffs_sha256__hasher__struct& operator=( + const wuffs_sha256__hasher__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -12332,120 +13297,68 @@ struct wuffs_wbmp__decoder__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_wbmp__decoder__initialize( + return wuffs_sha256__hasher__initialize( this, sizeof_star_self, wuffs_version, options); } - inline wuffs_base__image_decoder* - upcast_as__wuffs_base__image_decoder() { - return (wuffs_base__image_decoder*)this; + inline wuffs_base__hasher_bitvec256* + upcast_as__wuffs_base__hasher_bitvec256() { + return (wuffs_base__hasher_bitvec256*)this; } inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_wbmp__decoder__get_quirk(this, a_key); + return wuffs_sha256__hasher__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_wbmp__decoder__set_quirk(this, a_key, a_value); - } - - inline wuffs_base__status - decode_image_config( - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - return wuffs_wbmp__decoder__decode_image_config(this, a_dst, a_src); - } - - inline wuffs_base__status - decode_frame_config( - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - return wuffs_wbmp__decoder__decode_frame_config(this, a_dst, a_src); - } - - inline wuffs_base__status - decode_frame( - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - return wuffs_wbmp__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); - } - - inline wuffs_base__rect_ie_u32 - frame_dirty_rect() const { - return wuffs_wbmp__decoder__frame_dirty_rect(this); - } - - inline uint32_t - num_animation_loops() const { - return wuffs_wbmp__decoder__num_animation_loops(this); - } - - inline uint64_t - num_decoded_frame_configs() const { - return wuffs_wbmp__decoder__num_decoded_frame_configs(this); - } - - inline uint64_t - num_decoded_frames() const { - return wuffs_wbmp__decoder__num_decoded_frames(this); - } - - inline wuffs_base__status - restart_frame( - uint64_t a_index, - uint64_t a_io_position) { - return wuffs_wbmp__decoder__restart_frame(this, a_index, a_io_position); + return wuffs_sha256__hasher__set_quirk(this, a_key, a_value); } inline wuffs_base__empty_struct - set_report_metadata( - uint32_t a_fourcc, - bool a_report) { - return wuffs_wbmp__decoder__set_report_metadata(this, a_fourcc, a_report); - } - - inline wuffs_base__status - tell_me_more( - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - return wuffs_wbmp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + update( + wuffs_base__slice_u8 a_x) { + return wuffs_sha256__hasher__update(this, a_x); } - inline uint64_t - history_retain_length() const { - return wuffs_wbmp__decoder__history_retain_length(this); + inline wuffs_base__bitvec256 + update_bitvec256( + wuffs_base__slice_u8 a_x) { + return wuffs_sha256__hasher__update_bitvec256(this, a_x); } - inline wuffs_base__range_ii_u64 - workbuf_len() const { - return wuffs_wbmp__decoder__workbuf_len(this); + inline wuffs_base__bitvec256 + checksum_bitvec256() const { + return wuffs_sha256__hasher__checksum_bitvec256(this); } #endif // __cplusplus -}; // struct wuffs_wbmp__decoder__struct +}; // struct wuffs_sha256__hasher__struct #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) || defined(WUFFS_NONMONOLITHIC) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes +extern const char wuffs_tga__error__bad_header[]; +extern const char wuffs_tga__error__bad_run_length_encoding[]; +extern const char wuffs_tga__error__truncated_input[]; +extern const char wuffs_tga__error__unsupported_tga_file[]; + // ---------------- Public Consts +#define WUFFS_TGA__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u + // ---------------- Struct Declarations -typedef struct wuffs_xxhash32__hasher__struct wuffs_xxhash32__hasher; +typedef struct wuffs_tga__decoder__struct wuffs_tga__decoder; #ifdef __cplusplus extern "C" { @@ -12460,14 +13373,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_xxhash32__hasher__initialize( - wuffs_xxhash32__hasher* self, +wuffs_tga__decoder__initialize( + wuffs_tga__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_xxhash32__hasher(void); +sizeof__wuffs_tga__decoder(void); // ---------------- Allocs @@ -12477,53 +13390,107 @@ sizeof__wuffs_xxhash32__hasher(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_xxhash32__hasher* -wuffs_xxhash32__hasher__alloc(void); +wuffs_tga__decoder* +wuffs_tga__decoder__alloc(void); -static inline wuffs_base__hasher_u32* -wuffs_xxhash32__hasher__alloc_as__wuffs_base__hasher_u32(void) { - return (wuffs_base__hasher_u32*)(wuffs_xxhash32__hasher__alloc()); +static inline wuffs_base__image_decoder* +wuffs_tga__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_tga__decoder__alloc()); } // ---------------- Upcasts -static inline wuffs_base__hasher_u32* -wuffs_xxhash32__hasher__upcast_as__wuffs_base__hasher_u32( - wuffs_xxhash32__hasher* p) { - return (wuffs_base__hasher_u32*)p; +static inline wuffs_base__image_decoder* +wuffs_tga__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_tga__decoder* p) { + return (wuffs_base__image_decoder*)p; } // ---------------- Public Function Prototypes WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash32__hasher__get_quirk( - const wuffs_xxhash32__hasher* self, +wuffs_tga__decoder__get_quirk( + const wuffs_tga__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xxhash32__hasher__set_quirk( - wuffs_xxhash32__hasher* self, +wuffs_tga__decoder__set_quirk( + wuffs_tga__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_xxhash32__hasher__update( - wuffs_xxhash32__hasher* self, - wuffs_base__slice_u8 a_x); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__decode_image_config( + wuffs_tga__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_xxhash32__hasher__update_u32( - wuffs_xxhash32__hasher* self, - wuffs_base__slice_u8 a_x); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__decode_frame_config( + wuffs_tga__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__decode_frame( + wuffs_tga__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_tga__decoder__frame_dirty_rect( + const wuffs_tga__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_xxhash32__hasher__checksum_u32( - const wuffs_xxhash32__hasher* self); +wuffs_tga__decoder__num_animation_loops( + const wuffs_tga__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_tga__decoder__num_decoded_frame_configs( + const wuffs_tga__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_tga__decoder__num_decoded_frames( + const wuffs_tga__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__restart_frame( + wuffs_tga__decoder* self, + uint64_t a_index, + uint64_t a_io_position); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_tga__decoder__set_report_metadata( + wuffs_tga__decoder* self, + uint32_t a_fourcc, + bool a_report); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__tell_me_more( + wuffs_tga__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_tga__decoder__workbuf_len( + const wuffs_tga__decoder* self); #ifdef __cplusplus } // extern "C" @@ -12538,7 +13505,7 @@ wuffs_xxhash32__hasher__checksum_u32( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_xxhash32__hasher__struct { +struct wuffs_tga__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -12549,36 +13516,72 @@ struct wuffs_xxhash32__hasher__struct { struct { uint32_t magic; uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__hasher_u32; + wuffs_base__vtable vtable_for__wuffs_base__image_decoder; wuffs_base__vtable null_vtable; - uint32_t f_length_modulo_u32; - bool f_length_overflows_u32; - uint8_t f_padding0; - uint8_t f_padding1; - uint8_t f_buf_len; - uint8_t f_buf_data[16]; - uint32_t f_v0; - uint32_t f_v1; - uint32_t f_v2; - uint32_t f_v3; + uint32_t f_width; + uint32_t f_height; + uint8_t f_call_sequence; + uint8_t f_header_id_length; + uint8_t f_header_color_map_type; + uint8_t f_header_image_type; + uint16_t f_header_color_map_first_entry_index; + uint16_t f_header_color_map_length; + uint8_t f_header_color_map_entry_size; + uint8_t f_header_pixel_depth; + uint8_t f_header_image_descriptor; + bool f_opaque; + uint32_t f_scratch_bytes_per_pixel; + uint32_t f_src_bytes_per_pixel; + uint32_t f_src_pixfmt; + uint64_t f_frame_config_io_position; + wuffs_base__pixel_swizzler f_swizzler; + + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; } private_impl; + struct { + uint8_t f_dst_palette[1024]; + uint8_t f_src_palette[1024]; + uint8_t f_scratch[4]; + + struct { + uint32_t v_i; + uint64_t scratch; + } s_do_decode_image_config; + struct { + uint64_t v_dst_bytes_per_pixel; + uint32_t v_dst_x; + uint32_t v_dst_y; + uint64_t v_mark; + uint32_t v_num_pixels32; + uint32_t v_lit_length; + uint32_t v_run_length; + uint64_t v_num_dst_bytes; + uint64_t scratch; + } s_do_decode_frame; + } private_data; + #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_xxhash32__hasher__alloc()); + return unique_ptr(wuffs_tga__decoder__alloc()); } - static inline wuffs_base__hasher_u32::unique_ptr - alloc_as__wuffs_base__hasher_u32() { - return wuffs_base__hasher_u32::unique_ptr( - wuffs_xxhash32__hasher__alloc_as__wuffs_base__hasher_u32()); + static inline wuffs_base__image_decoder::unique_ptr + alloc_as__wuffs_base__image_decoder() { + return wuffs_base__image_decoder::unique_ptr( + wuffs_tga__decoder__alloc_as__wuffs_base__image_decoder()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -12594,10 +13597,10 @@ struct wuffs_xxhash32__hasher__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_xxhash32__hasher__struct() = delete; - wuffs_xxhash32__hasher__struct(const wuffs_xxhash32__hasher__struct&) = delete; - wuffs_xxhash32__hasher__struct& operator=( - const wuffs_xxhash32__hasher__struct&) = delete; + wuffs_tga__decoder__struct() = delete; + wuffs_tga__decoder__struct(const wuffs_tga__decoder__struct&) = delete; + wuffs_tga__decoder__struct& operator=( + const wuffs_tga__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -12617,53 +13620,107 @@ struct wuffs_xxhash32__hasher__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_xxhash32__hasher__initialize( + return wuffs_tga__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } - inline wuffs_base__hasher_u32* - upcast_as__wuffs_base__hasher_u32() { - return (wuffs_base__hasher_u32*)this; + inline wuffs_base__image_decoder* + upcast_as__wuffs_base__image_decoder() { + return (wuffs_base__image_decoder*)this; } inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_xxhash32__hasher__get_quirk(this, a_key); + return wuffs_tga__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_xxhash32__hasher__set_quirk(this, a_key, a_value); + return wuffs_tga__decoder__set_quirk(this, a_key, a_value); } - inline wuffs_base__empty_struct - update( - wuffs_base__slice_u8 a_x) { - return wuffs_xxhash32__hasher__update(this, a_x); + inline wuffs_base__status + decode_image_config( + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_tga__decoder__decode_image_config(this, a_dst, a_src); } - inline uint32_t - update_u32( - wuffs_base__slice_u8 a_x) { - return wuffs_xxhash32__hasher__update_u32(this, a_x); + inline wuffs_base__status + decode_frame_config( + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_tga__decoder__decode_frame_config(this, a_dst, a_src); + } + + inline wuffs_base__status + decode_frame( + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + return wuffs_tga__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + } + + inline wuffs_base__rect_ie_u32 + frame_dirty_rect() const { + return wuffs_tga__decoder__frame_dirty_rect(this); } inline uint32_t - checksum_u32() const { - return wuffs_xxhash32__hasher__checksum_u32(this); + num_animation_loops() const { + return wuffs_tga__decoder__num_animation_loops(this); + } + + inline uint64_t + num_decoded_frame_configs() const { + return wuffs_tga__decoder__num_decoded_frame_configs(this); + } + + inline uint64_t + num_decoded_frames() const { + return wuffs_tga__decoder__num_decoded_frames(this); + } + + inline wuffs_base__status + restart_frame( + uint64_t a_index, + uint64_t a_io_position) { + return wuffs_tga__decoder__restart_frame(this, a_index, a_io_position); + } + + inline wuffs_base__empty_struct + set_report_metadata( + uint32_t a_fourcc, + bool a_report) { + return wuffs_tga__decoder__set_report_metadata(this, a_fourcc, a_report); + } + + inline wuffs_base__status + tell_me_more( + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + return wuffs_tga__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + } + + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_tga__decoder__workbuf_len(this); } #endif // __cplusplus -}; // struct wuffs_xxhash32__hasher__struct +}; // struct wuffs_tga__decoder__struct #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) || defined(WUFFS_NONMONOLITHIC) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__VP8) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes @@ -12671,7 +13728,7 @@ struct wuffs_xxhash32__hasher__struct { // ---------------- Struct Declarations -typedef struct wuffs_xxhash64__hasher__struct wuffs_xxhash64__hasher; +typedef struct wuffs_vp8__placeholder__struct wuffs_vp8__placeholder; #ifdef __cplusplus extern "C" { @@ -12686,14 +13743,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_xxhash64__hasher__initialize( - wuffs_xxhash64__hasher* self, +wuffs_vp8__placeholder__initialize( + wuffs_vp8__placeholder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_xxhash64__hasher(void); +sizeof__wuffs_vp8__placeholder(void); // ---------------- Allocs @@ -12703,54 +13760,13 @@ sizeof__wuffs_xxhash64__hasher(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_xxhash64__hasher* -wuffs_xxhash64__hasher__alloc(void); - -static inline wuffs_base__hasher_u64* -wuffs_xxhash64__hasher__alloc_as__wuffs_base__hasher_u64(void) { - return (wuffs_base__hasher_u64*)(wuffs_xxhash64__hasher__alloc()); -} +wuffs_vp8__placeholder* +wuffs_vp8__placeholder__alloc(void); // ---------------- Upcasts -static inline wuffs_base__hasher_u64* -wuffs_xxhash64__hasher__upcast_as__wuffs_base__hasher_u64( - wuffs_xxhash64__hasher* p) { - return (wuffs_base__hasher_u64*)p; -} - // ---------------- Public Function Prototypes -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__get_quirk( - const wuffs_xxhash64__hasher* self, - uint32_t a_key); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xxhash64__hasher__set_quirk( - wuffs_xxhash64__hasher* self, - uint32_t a_key, - uint64_t a_value); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_xxhash64__hasher__update( - wuffs_xxhash64__hasher* self, - wuffs_base__slice_u8 a_x); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__update_u64( - wuffs_xxhash64__hasher* self, - wuffs_base__slice_u8 a_x); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__checksum_u64( - const wuffs_xxhash64__hasher* self); - #ifdef __cplusplus } // extern "C" #endif @@ -12764,7 +13780,7 @@ wuffs_xxhash64__hasher__checksum_u64( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_xxhash64__hasher__struct { +struct wuffs_vp8__placeholder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -12775,37 +13791,20 @@ struct wuffs_xxhash64__hasher__struct { struct { uint32_t magic; uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__hasher_u64; wuffs_base__vtable null_vtable; - uint64_t f_length_modulo_u64; - bool f_length_overflows_u64; - uint8_t f_padding0; - uint8_t f_padding1; - uint8_t f_padding2; - uint32_t f_buf_len; - uint8_t f_buf_data[32]; - uint64_t f_v0; - uint64_t f_v1; - uint64_t f_v2; - uint64_t f_v3; + uint32_t f_placeholder; } private_impl; #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_xxhash64__hasher__alloc()); - } - - static inline wuffs_base__hasher_u64::unique_ptr - alloc_as__wuffs_base__hasher_u64() { - return wuffs_base__hasher_u64::unique_ptr( - wuffs_xxhash64__hasher__alloc_as__wuffs_base__hasher_u64()); + return unique_ptr(wuffs_vp8__placeholder__alloc()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -12821,10 +13820,10 @@ struct wuffs_xxhash64__hasher__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_xxhash64__hasher__struct() = delete; - wuffs_xxhash64__hasher__struct(const wuffs_xxhash64__hasher__struct&) = delete; - wuffs_xxhash64__hasher__struct& operator=( - const wuffs_xxhash64__hasher__struct&) = delete; + wuffs_vp8__placeholder__struct() = delete; + wuffs_vp8__placeholder__struct(const wuffs_vp8__placeholder__struct&) = delete; + wuffs_vp8__placeholder__struct& operator=( + const wuffs_vp8__placeholder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -12844,9372 +13843,9377 @@ struct wuffs_xxhash64__hasher__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_xxhash64__hasher__initialize( + return wuffs_vp8__placeholder__initialize( this, sizeof_star_self, wuffs_version, options); } - inline wuffs_base__hasher_u64* - upcast_as__wuffs_base__hasher_u64() { - return (wuffs_base__hasher_u64*)this; - } +#endif // __cplusplus +}; // struct wuffs_vp8__placeholder__struct - inline uint64_t - get_quirk( - uint32_t a_key) const { - return wuffs_xxhash64__hasher__get_quirk(this, a_key); - } +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - inline wuffs_base__status - set_quirk( - uint32_t a_key, - uint64_t a_value) { - return wuffs_xxhash64__hasher__set_quirk(this, a_key, a_value); - } +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__VP8) || defined(WUFFS_NONMONOLITHIC) - inline wuffs_base__empty_struct - update( - wuffs_base__slice_u8 a_x) { - return wuffs_xxhash64__hasher__update(this, a_x); - } +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) || defined(WUFFS_NONMONOLITHIC) - inline uint64_t - update_u64( - wuffs_base__slice_u8 a_x) { - return wuffs_xxhash64__hasher__update_u64(this, a_x); - } +// ---------------- Status Codes - inline uint64_t - checksum_u64() const { - return wuffs_xxhash64__hasher__checksum_u64(this); - } +extern const char wuffs_wbmp__error__bad_header[]; +extern const char wuffs_wbmp__error__truncated_input[]; -#endif // __cplusplus -}; // struct wuffs_xxhash64__hasher__struct +// ---------------- Public Consts -#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) +#define WUFFS_WBMP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) || defined(WUFFS_NONMONOLITHIC) +// ---------------- Struct Declarations -#if defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) +typedef struct wuffs_wbmp__decoder__struct wuffs_wbmp__decoder; -// ---------------- Auxiliary - Base +#ifdef __cplusplus +extern "C" { +#endif -// Auxiliary code is discussed at -// https://github.com/google/wuffs/blob/main/doc/note/auxiliary-code.md +// ---------------- Public Initializer Prototypes -#include +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -#include +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_wbmp__decoder__initialize( + wuffs_wbmp__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); -namespace wuffs_aux { +size_t +sizeof__wuffs_wbmp__decoder(void); -using IOBuffer = wuffs_base__io_buffer; +// ---------------- Allocs -// MemOwner represents ownership of some memory. Dynamically allocated memory -// (e.g. from malloc or new) is typically paired with free or delete, invoked -// when the std::unique_ptr is destroyed. Statically allocated memory might use -// MemOwner(nullptr, &free), even if that statically allocated memory is not -// nullptr, since calling free(nullptr) is a no-op. -using MemOwner = std::unique_ptr; +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. -namespace sync_io { +wuffs_wbmp__decoder* +wuffs_wbmp__decoder__alloc(void); -// -------- +static inline wuffs_base__image_decoder* +wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_wbmp__decoder__alloc()); +} -// DynIOBuffer is an IOBuffer that is backed by a dynamically sized byte array. -// It owns that backing array and will free it in its destructor. -// -// The array size can be explicitly extended (by calling the grow method) but, -// unlike a C++ std::vector, there is no implicit extension (e.g. by calling -// std::vector::insert) and its maximum size is capped by the max_incl -// constructor argument. -// -// It contains an IOBuffer-typed field whose reader side provides access to -// previously written bytes and whose writer side provides access to the -// allocated but not-yet-written-to slack space. For Go programmers, this slack -// space is roughly analogous to the s[len(s):cap(s)] space of a slice s. -class DynIOBuffer { - public: - enum GrowResult { - OK = 0, - FailedMaxInclExceeded = 1, - FailedOutOfMemory = 2, - }; +// ---------------- Upcasts - // m_buf holds the dynamically sized byte array and its read/write indexes: - // - m_buf.meta.wi is roughly analogous to a Go slice's length. - // - m_buf.data.len is roughly analogous to a Go slice's capacity. It is - // also equal to the m_buf.data.ptr malloc/realloc size. - // - // Users should not modify the m_buf.data.ptr or m_buf.data.len fields (as - // they are conceptually private to this class), but they can modify the - // bytes referenced by that pointer-length pair (e.g. compactions). - IOBuffer m_buf; +static inline wuffs_base__image_decoder* +wuffs_wbmp__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_wbmp__decoder* p) { + return (wuffs_base__image_decoder*)p; +} - // m_max_incl is an inclusive upper bound on the backing array size. - const uint64_t m_max_incl; +// ---------------- Public Function Prototypes - // Constructor and destructor. - explicit DynIOBuffer(uint64_t max_incl); - ~DynIOBuffer(); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__get_quirk( + const wuffs_wbmp__decoder* self, + uint32_t a_key); - // Drop frees the byte array and resets m_buf. The DynIOBuffer can still be - // used after a drop call. It just restarts from zero. - void drop(); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__set_quirk( + wuffs_wbmp__decoder* self, + uint32_t a_key, + uint64_t a_value); - // grow ensures that the byte array size is at least min_incl and at most - // max_incl. It returns FailedMaxInclExceeded if that would require - // allocating more than max_incl bytes, including the case where (min_incl > - // max_incl). It returns FailedOutOfMemory if memory allocation failed. - GrowResult grow(uint64_t min_incl); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_image_config( + wuffs_wbmp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); - private: - // Delete the copy and assign constructors. - DynIOBuffer(const DynIOBuffer&) = delete; - DynIOBuffer& operator=(const DynIOBuffer&) = delete; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_frame_config( + wuffs_wbmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); - static uint64_t round_up(uint64_t min_incl, uint64_t max_incl); -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_frame( + wuffs_wbmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); -// -------- +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_wbmp__decoder__frame_dirty_rect( + const wuffs_wbmp__decoder* self); -class Input { - public: - virtual ~Input(); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_wbmp__decoder__num_animation_loops( + const wuffs_wbmp__decoder* self); - virtual IOBuffer* BringsItsOwnIOBuffer(); - virtual std::string CopyIn(IOBuffer* dst, uint64_t history_retain_length) = 0; -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__num_decoded_frame_configs( + const wuffs_wbmp__decoder* self); -// -------- +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__num_decoded_frames( + const wuffs_wbmp__decoder* self); -// FileInput is an Input that reads from a file source. -// -// It does not take responsibility for closing the file when done. -class FileInput : public Input { - public: - FileInput(FILE* f); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__restart_frame( + wuffs_wbmp__decoder* self, + uint64_t a_index, + uint64_t a_io_position); - virtual std::string CopyIn(IOBuffer* dst, uint64_t history_retain_length); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_wbmp__decoder__set_report_metadata( + wuffs_wbmp__decoder* self, + uint32_t a_fourcc, + bool a_report); - private: - FILE* m_f; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__tell_me_more( + wuffs_wbmp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); - // Delete the copy and assign constructors. - FileInput(const FileInput&) = delete; - FileInput& operator=(const FileInput&) = delete; -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_wbmp__decoder__workbuf_len( + const wuffs_wbmp__decoder* self); -// -------- +#ifdef __cplusplus +} // extern "C" +#endif -// MemoryInput is an Input that reads from an in-memory source. +// ---------------- Struct Definitions + +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. // -// It does not take responsibility for freeing the memory when done. -class MemoryInput : public Input { - public: - MemoryInput(const char* ptr, size_t len); - MemoryInput(const uint8_t* ptr, size_t len); +// See https://en.wikipedia.org/wiki/Opaque_pointer#C - virtual IOBuffer* BringsItsOwnIOBuffer(); - virtual std::string CopyIn(IOBuffer* dst, uint64_t history_retain_length); +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - private: - IOBuffer m_io; +struct wuffs_wbmp__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. - // Delete the copy and assign constructors. - MemoryInput(const MemoryInput&) = delete; - MemoryInput& operator=(const MemoryInput&) = delete; -}; + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__image_decoder; + wuffs_base__vtable null_vtable; -// -------- + uint32_t f_width; + uint32_t f_height; + uint8_t f_call_sequence; + uint64_t f_frame_config_io_position; + wuffs_base__pixel_swizzler f_swizzler; -} // namespace sync_io + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + } private_impl; -} // namespace wuffs_aux + struct { + struct { + uint32_t v_i; + uint32_t v_p; + } s_do_decode_image_config; + struct { + uint64_t v_dst_bytes_per_pixel; + uint32_t v_dst_x; + uint32_t v_dst_y; + uint8_t v_src[1]; + uint8_t v_c8; + } s_do_decode_frame; + } private_data; -// ---------------- Auxiliary - CBOR +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; -namespace wuffs_aux { + // On failure, the alloc_etc functions return nullptr. They don't throw. -struct DecodeCborResult { - DecodeCborResult(std::string&& error_message0, uint64_t cursor_position0); + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_wbmp__decoder__alloc()); + } - std::string error_message; - uint64_t cursor_position; -}; + static inline wuffs_base__image_decoder::unique_ptr + alloc_as__wuffs_base__image_decoder() { + return wuffs_base__image_decoder::unique_ptr( + wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) -class DecodeCborCallbacks { - public: - virtual ~DecodeCborCallbacks(); +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_wbmp__decoder__struct() = delete; + wuffs_wbmp__decoder__struct(const wuffs_wbmp__decoder__struct&) = delete; + wuffs_wbmp__decoder__struct& operator=( + const wuffs_wbmp__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) - // AppendXxx are called for leaf nodes: literals, numbers, strings, etc. +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) - virtual std::string AppendNull() = 0; - virtual std::string AppendUndefined() = 0; - virtual std::string AppendBool(bool val) = 0; - virtual std::string AppendF64(double val) = 0; - virtual std::string AppendI64(int64_t val) = 0; - virtual std::string AppendU64(uint64_t val) = 0; - virtual std::string AppendByteString(std::string&& val) = 0; - virtual std::string AppendTextString(std::string&& val) = 0; - virtual std::string AppendMinus1MinusX(uint64_t val) = 0; - virtual std::string AppendCborSimpleValue(uint8_t val) = 0; - virtual std::string AppendCborTag(uint64_t val) = 0; + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_wbmp__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); + } - // Push and Pop are called for container nodes: CBOR arrays (lists) and CBOR - // maps (dictionaries). - // - // The flags bits combine exactly one of: - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT - // and exactly one of: - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT + inline wuffs_base__image_decoder* + upcast_as__wuffs_base__image_decoder() { + return (wuffs_base__image_decoder*)this; + } - virtual std::string Push(uint32_t flags) = 0; - virtual std::string Pop(uint32_t flags) = 0; + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_wbmp__decoder__get_quirk(this, a_key); + } - // Done is always the last Callback method called by DecodeCbor, whether or - // not parsing the input as CBOR encountered an error. Even when successful, - // trailing data may remain in input and buffer. - // - // Do not keep a reference to buffer or buffer.data.ptr after Done returns, - // as DecodeCbor may then de-allocate the backing array. - // - // The default Done implementation is a no-op. - virtual void // - Done(DecodeCborResult& result, sync_io::Input& input, IOBuffer& buffer); -}; + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_wbmp__decoder__set_quirk(this, a_key, a_value); + } -// The FooArgBar types add structure to Foo's optional arguments. They wrap -// inner representations for several reasons: -// - It provides a home for the DefaultValue static method, for Foo callers -// that want to override some but not all optional arguments. -// - It provides the "Bar" name at Foo call sites, which can help self- -// document Foo calls with many arguemnts. -// - It provides some type safety against accidentally transposing or omitting -// adjacent fundamentally-numeric-typed optional arguments. + inline wuffs_base__status + decode_image_config( + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_wbmp__decoder__decode_image_config(this, a_dst, a_src); + } -// DecodeCborArgQuirks wraps an optional argument to DecodeCbor. -struct DecodeCborArgQuirks { - explicit DecodeCborArgQuirks(wuffs_base__slice_u32 repr0); - explicit DecodeCborArgQuirks(uint32_t* ptr, size_t len); + inline wuffs_base__status + decode_frame_config( + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_wbmp__decoder__decode_frame_config(this, a_dst, a_src); + } - // DefaultValue returns an empty slice. - static DecodeCborArgQuirks DefaultValue(); + inline wuffs_base__status + decode_frame( + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + return wuffs_wbmp__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + } - wuffs_base__slice_u32 repr; -}; + inline wuffs_base__rect_ie_u32 + frame_dirty_rect() const { + return wuffs_wbmp__decoder__frame_dirty_rect(this); + } -// DecodeCbor calls callbacks based on the CBOR-formatted data in input. -// -// On success, the returned error_message is empty and cursor_position counts -// the number of bytes consumed. On failure, error_message is non-empty and -// cursor_position is the location of the error. That error may be a content -// error (invalid CBOR) or an input error (e.g. network failure). -DecodeCborResult // -DecodeCbor(DecodeCborCallbacks& callbacks, - sync_io::Input& input, - DecodeCborArgQuirks quirks = DecodeCborArgQuirks::DefaultValue()); + inline uint32_t + num_animation_loops() const { + return wuffs_wbmp__decoder__num_animation_loops(this); + } -} // namespace wuffs_aux + inline uint64_t + num_decoded_frame_configs() const { + return wuffs_wbmp__decoder__num_decoded_frame_configs(this); + } -// ---------------- Auxiliary - Image + inline uint64_t + num_decoded_frames() const { + return wuffs_wbmp__decoder__num_decoded_frames(this); + } -namespace wuffs_aux { + inline wuffs_base__status + restart_frame( + uint64_t a_index, + uint64_t a_io_position) { + return wuffs_wbmp__decoder__restart_frame(this, a_index, a_io_position); + } -struct DecodeImageResult { - DecodeImageResult(MemOwner&& pixbuf_mem_owner0, - wuffs_base__pixel_buffer pixbuf0, - std::string&& error_message0); - DecodeImageResult(std::string&& error_message0); + inline wuffs_base__empty_struct + set_report_metadata( + uint32_t a_fourcc, + bool a_report) { + return wuffs_wbmp__decoder__set_report_metadata(this, a_fourcc, a_report); + } - MemOwner pixbuf_mem_owner; - wuffs_base__pixel_buffer pixbuf; - std::string error_message; -}; + inline wuffs_base__status + tell_me_more( + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + return wuffs_wbmp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + } -// DecodeImageCallbacks are the callbacks given to DecodeImage. They are always -// called in this order: -// 1. SelectDecoder -// 2. HandleMetadata -// 3. SelectPixfmt -// 4. AllocPixbuf -// 5. AllocWorkbuf -// 6. Done -// -// It may return early - the third callback might not be invoked if the second -// one fails - but the final callback (Done) is always invoked. -class DecodeImageCallbacks { - public: - // AllocPixbufResult holds a memory allocation (the result of malloc or new, - // a statically allocated pointer, etc), or an error message. The memory is - // de-allocated when mem_owner goes out of scope and is destroyed. - struct AllocPixbufResult { - AllocPixbufResult(MemOwner&& mem_owner0, wuffs_base__pixel_buffer pixbuf0); - AllocPixbufResult(std::string&& error_message0); + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_wbmp__decoder__workbuf_len(this); + } - MemOwner mem_owner; - wuffs_base__pixel_buffer pixbuf; - std::string error_message; - }; +#endif // __cplusplus +}; // struct wuffs_wbmp__decoder__struct - // AllocWorkbufResult holds a memory allocation (the result of malloc or new, - // a statically allocated pointer, etc), or an error message. The memory is - // de-allocated when mem_owner goes out of scope and is destroyed. - struct AllocWorkbufResult { - AllocWorkbufResult(MemOwner&& mem_owner0, wuffs_base__slice_u8 workbuf0); - AllocWorkbufResult(std::string&& error_message0); +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - MemOwner mem_owner; - wuffs_base__slice_u8 workbuf; - std::string error_message; - }; +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) || defined(WUFFS_NONMONOLITHIC) - virtual ~DecodeImageCallbacks(); +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) || defined(WUFFS_NONMONOLITHIC) - // SelectDecoder returns the image decoder for the input data's file format. - // Returning a nullptr means failure (DecodeImage_UnsupportedImageFormat). - // - // Common formats will have a FourCC value in the range [1 ..= 0x7FFF_FFFF], - // such as WUFFS_BASE__FOURCC__JPEG. A zero FourCC value means that Wuffs' - // standard library did not recognize the image format but if SelectDecoder - // was overridden, it may examine the input data's starting bytes and still - // provide its own image decoder, e.g. for an exotic image file format that's - // not in Wuffs' standard library. The prefix_etc fields have the same - // meaning as wuffs_base__magic_number_guess_fourcc arguments. SelectDecoder - // implementations should not modify prefix_data's contents. - // - // SelectDecoder might be called more than once, since some image file - // formats can wrap others. For example, a nominal BMP file can actually - // contain a JPEG or a PNG. - // - // The default SelectDecoder accepts the FOURCC codes listed below. For - // modular builds (i.e. when #define'ing WUFFS_CONFIG__MODULES), acceptance - // of the ETC file format is optional (for each value of ETC) and depends on - // the corresponding module to be enabled at compile time (i.e. #define'ing - // WUFFS_CONFIG__MODULE__ETC). - // - WUFFS_BASE__FOURCC__BMP - // - WUFFS_BASE__FOURCC__GIF - // - WUFFS_BASE__FOURCC__JPEG - // - WUFFS_BASE__FOURCC__NIE - // - WUFFS_BASE__FOURCC__NPBM - // - WUFFS_BASE__FOURCC__PNG - // - WUFFS_BASE__FOURCC__TGA - // - WUFFS_BASE__FOURCC__WBMP - virtual wuffs_base__image_decoder::unique_ptr // - SelectDecoder(uint32_t fourcc, - wuffs_base__slice_u8 prefix_data, - bool prefix_closed); - - // HandleMetadata acknowledges image metadata. minfo.flavor will be one of: - // - WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA_RAW_PASSTHROUGH - // - WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA_PARSED - // If it is ETC__METADATA_RAW_ETC then raw contains the metadata bytes. Those - // bytes should not be retained beyond the the HandleMetadata call. - // - // minfo.metadata__fourcc() will typically match one of the - // DecodeImageArgFlags bits. For example, if (REPORT_METADATA_CHRM | - // REPORT_METADATA_GAMA) was passed to DecodeImage then the metadata FourCC - // will be either WUFFS_BASE__FOURCC__CHRM or WUFFS_BASE__FOURCC__GAMA. - // - // It returns an error message, or an empty string on success. - virtual std::string // - HandleMetadata(const wuffs_base__more_information& minfo, - wuffs_base__slice_u8 raw); - - // SelectPixfmt returns the destination pixel format for AllocPixbuf. It - // should return wuffs_base__make_pixel_format(etc) called with one of: - // - WUFFS_BASE__PIXEL_FORMAT__BGR_565 - // - WUFFS_BASE__PIXEL_FORMAT__BGR - // - WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL - // - WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE - // - WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL - // - WUFFS_BASE__PIXEL_FORMAT__RGB - // - WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL - // - WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL - // or return image_config.pixcfg.pixel_format(). The latter means to use the - // image file's natural pixel format. For example, GIF images' natural pixel - // format is an indexed one. - // - // Returning otherwise means failure (DecodeImage_UnsupportedPixelFormat). - // - // The default SelectPixfmt implementation returns - // wuffs_base__make_pixel_format(WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL) which - // is 4 bytes per pixel (8 bits per channel × 4 channels). - virtual wuffs_base__pixel_format // - SelectPixfmt(const wuffs_base__image_config& image_config); +// ---------------- Status Codes - // AllocPixbuf allocates the pixel buffer. - // - // allow_uninitialized_memory will be true if a valid background_color was - // passed to DecodeImage, since the pixel buffer's contents will be - // overwritten with that color after AllocPixbuf returns. - // - // The default AllocPixbuf implementation allocates either uninitialized or - // zeroed memory. Zeroed memory typically corresponds to filling with opaque - // black or transparent black, depending on the pixel format. - virtual AllocPixbufResult // - AllocPixbuf(const wuffs_base__image_config& image_config, - bool allow_uninitialized_memory); +extern const char wuffs_webp__error__bad_huffman_code_over_subscribed[]; +extern const char wuffs_webp__error__bad_huffman_code_under_subscribed[]; +extern const char wuffs_webp__error__bad_huffman_code[]; +extern const char wuffs_webp__error__bad_back_reference[]; +extern const char wuffs_webp__error__bad_color_cache[]; +extern const char wuffs_webp__error__bad_header[]; +extern const char wuffs_webp__error__bad_transform[]; +extern const char wuffs_webp__error__short_chunk[]; +extern const char wuffs_webp__error__truncated_input[]; +extern const char wuffs_webp__error__unsupported_number_of_huffman_groups[]; +extern const char wuffs_webp__error__unsupported_transform_after_color_indexing_transform[]; +extern const char wuffs_webp__error__unsupported_webp_file[]; - // AllocWorkbuf allocates the work buffer. The allocated buffer's length - // should be at least len_range.min_incl, but larger allocations (up to - // len_range.max_incl) may have better performance (by using more memory). - // - // The default AllocWorkbuf implementation allocates len_range.max_incl bytes - // of either uninitialized or zeroed memory. - virtual AllocWorkbufResult // - AllocWorkbuf(wuffs_base__range_ii_u64 len_range, - bool allow_uninitialized_memory); +// ---------------- Public Consts - // Done is always the last Callback method called by DecodeImage, whether or - // not parsing the input encountered an error. Even when successful, trailing - // data may remain in input and buffer. - // - // The image_decoder is the one returned by SelectDecoder (if SelectDecoder - // was successful), or a no-op unique_ptr otherwise. Like any unique_ptr, - // ownership moves to the Done implementation. - // - // Do not keep a reference to buffer or buffer.data.ptr after Done returns, - // as DecodeImage may then de-allocate the backing array. - // - // The default Done implementation is a no-op, other than running the - // image_decoder unique_ptr destructor. - virtual void // - Done(DecodeImageResult& result, - sync_io::Input& input, - IOBuffer& buffer, - wuffs_base__image_decoder::unique_ptr image_decoder); -}; +#define WUFFS_WEBP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u -extern const char DecodeImage_BufferIsTooShort[]; -extern const char DecodeImage_MaxInclDimensionExceeded[]; -extern const char DecodeImage_MaxInclMetadataLengthExceeded[]; -extern const char DecodeImage_OutOfMemory[]; -extern const char DecodeImage_UnexpectedEndOfFile[]; -extern const char DecodeImage_UnsupportedImageFormat[]; -extern const char DecodeImage_UnsupportedMetadata[]; -extern const char DecodeImage_UnsupportedPixelBlend[]; -extern const char DecodeImage_UnsupportedPixelConfiguration[]; -extern const char DecodeImage_UnsupportedPixelFormat[]; +// ---------------- Struct Declarations -// The FooArgBar types add structure to Foo's optional arguments. They wrap -// inner representations for several reasons: -// - It provides a home for the DefaultValue static method, for Foo callers -// that want to override some but not all optional arguments. -// - It provides the "Bar" name at Foo call sites, which can help self- -// document Foo calls with many arguemnts. -// - It provides some type safety against accidentally transposing or omitting -// adjacent fundamentally-numeric-typed optional arguments. +typedef struct wuffs_webp__decoder__struct wuffs_webp__decoder; -// DecodeImageArgQuirks wraps an optional argument to DecodeImage. -struct DecodeImageArgQuirks { - explicit DecodeImageArgQuirks(wuffs_base__slice_u32 repr0); - explicit DecodeImageArgQuirks(uint32_t* ptr, size_t len); +#ifdef __cplusplus +extern "C" { +#endif - // DefaultValue returns an empty slice. - static DecodeImageArgQuirks DefaultValue(); +// ---------------- Public Initializer Prototypes - wuffs_base__slice_u32 repr; -}; +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -// DecodeImageArgFlags wraps an optional argument to DecodeImage. -struct DecodeImageArgFlags { - explicit DecodeImageArgFlags(uint64_t repr0); +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_webp__decoder__initialize( + wuffs_webp__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); - // DefaultValue returns 0. - static DecodeImageArgFlags DefaultValue(); +size_t +sizeof__wuffs_webp__decoder(void); - // TODO: support all of the REPORT_METADATA_ETC flags, not just CHRM, EXIF, - // GAMA, ICCP, KVP, SRGB and XMP. +// ---------------- Allocs - // Background Color. - static constexpr uint64_t REPORT_METADATA_BGCL = 0x0001; - // Primary Chromaticities and White Point. - static constexpr uint64_t REPORT_METADATA_CHRM = 0x0002; - // Exchangeable Image File Format. - static constexpr uint64_t REPORT_METADATA_EXIF = 0x0004; - // Gamma Correction. - static constexpr uint64_t REPORT_METADATA_GAMA = 0x0008; - // International Color Consortium Profile. - static constexpr uint64_t REPORT_METADATA_ICCP = 0x0010; - // Key-Value Pair. - // - // For PNG files, this includes iTXt, tEXt and zTXt chunks. In the - // HandleMetadata callback, the raw argument contains UTF-8 strings. - static constexpr uint64_t REPORT_METADATA_KVP = 0x0020; - // Modification Time. - static constexpr uint64_t REPORT_METADATA_MTIM = 0x0040; - // Offset (2-Dimensional). - static constexpr uint64_t REPORT_METADATA_OFS2 = 0x0080; - // Physical Dimensions. - static constexpr uint64_t REPORT_METADATA_PHYD = 0x0100; - // Standard Red Green Blue (Rendering Intent). - static constexpr uint64_t REPORT_METADATA_SRGB = 0x0200; - // Extensible Metadata Platform. - static constexpr uint64_t REPORT_METADATA_XMP = 0x0400; +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. - uint64_t repr; -}; +wuffs_webp__decoder* +wuffs_webp__decoder__alloc(void); -// DecodeImageArgPixelBlend wraps an optional argument to DecodeImage. -struct DecodeImageArgPixelBlend { - explicit DecodeImageArgPixelBlend(wuffs_base__pixel_blend repr0); +static inline wuffs_base__image_decoder* +wuffs_webp__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_webp__decoder__alloc()); +} - // DefaultValue returns WUFFS_BASE__PIXEL_BLEND__SRC. - static DecodeImageArgPixelBlend DefaultValue(); +// ---------------- Upcasts - wuffs_base__pixel_blend repr; -}; +static inline wuffs_base__image_decoder* +wuffs_webp__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_webp__decoder* p) { + return (wuffs_base__image_decoder*)p; +} -// DecodeImageArgBackgroundColor wraps an optional argument to DecodeImage. -struct DecodeImageArgBackgroundColor { - explicit DecodeImageArgBackgroundColor( - wuffs_base__color_u32_argb_premul repr0); +// ---------------- Public Function Prototypes - // DefaultValue returns 1, an invalid wuffs_base__color_u32_argb_premul. - static DecodeImageArgBackgroundColor DefaultValue(); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_webp__decoder__get_quirk( + const wuffs_webp__decoder* self, + uint32_t a_key); - wuffs_base__color_u32_argb_premul repr; -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__set_quirk( + wuffs_webp__decoder* self, + uint32_t a_key, + uint64_t a_value); -// DecodeImageArgMaxInclDimension wraps an optional argument to DecodeImage. -struct DecodeImageArgMaxInclDimension { - explicit DecodeImageArgMaxInclDimension(uint32_t repr0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__decode_image_config( + wuffs_webp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); - // DefaultValue returns 1048575 = 0x000F_FFFF, more than 1 million pixels. - static DecodeImageArgMaxInclDimension DefaultValue(); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__decode_frame_config( + wuffs_webp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); - uint32_t repr; -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__decode_frame( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); -// DecodeImageArgMaxInclMetadataLength wraps an optional argument to -// DecodeImage. -struct DecodeImageArgMaxInclMetadataLength { - explicit DecodeImageArgMaxInclMetadataLength(uint64_t repr0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_webp__decoder__frame_dirty_rect( + const wuffs_webp__decoder* self); - // DefaultValue returns 16777215 = 0x00FF_FFFF, one less than 16 MiB. - static DecodeImageArgMaxInclMetadataLength DefaultValue(); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_webp__decoder__num_animation_loops( + const wuffs_webp__decoder* self); - uint64_t repr; -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_webp__decoder__num_decoded_frame_configs( + const wuffs_webp__decoder* self); -// DecodeImage decodes the image data in input. A variety of image file formats -// can be decoded, depending on what callbacks.SelectDecoder returns. -// -// For animated formats, only the first frame is returned, since the API is -// simpler for synchronous I/O and having DecodeImage only return when -// completely done, but rendering animation often involves handling other -// events in between animation frames. To decode multiple frames of animated -// images, or for asynchronous I/O (e.g. when decoding an image streamed over -// the network), use Wuffs' lower level C API instead of its higher level, -// simplified C++ API (the wuffs_aux API). -// -// The DecodeImageResult's fields depend on whether decoding succeeded: -// - On total success, the error_message is empty and pixbuf.pixcfg.is_valid() -// is true. -// - On partial success (e.g. the input file was truncated but we are still -// able to decode some of the pixels), error_message is non-empty but -// pixbuf.pixcfg.is_valid() is still true. It is up to the caller whether to -// accept or reject partial success. -// - On failure, the error_message is non_empty and pixbuf.pixcfg.is_valid() -// is false. -// -// The callbacks allocate the pixel buffer memory and work buffer memory. On -// success, pixel buffer memory ownership is passed to the DecodeImage caller -// as the returned pixbuf_mem_owner. Regardless of success or failure, the work -// buffer memory is deleted. -// -// The pixel_blend (one of the constants listed below) determines how to -// composite the decoded image over the pixel buffer's original pixels (as -// returned by callbacks.AllocPixbuf): -// - WUFFS_BASE__PIXEL_BLEND__SRC -// - WUFFS_BASE__PIXEL_BLEND__SRC_OVER -// -// The background_color is used to fill the pixel buffer after -// callbacks.AllocPixbuf returns, if it is valid in the -// wuffs_base__color_u32_argb_premul__is_valid sense. The default value, -// 0x0000_0001, is not valid since its Blue channel value (0x01) is greater -// than its Alpha channel value (0x00). A valid background_color will typically -// be overwritten when pixel_blend is WUFFS_BASE__PIXEL_BLEND__SRC, but might -// still be visible on partial (not total) success or when pixel_blend is -// WUFFS_BASE__PIXEL_BLEND__SRC_OVER and the decoded image is not fully opaque. -// -// Decoding fails (with DecodeImage_MaxInclDimensionExceeded) if the image's -// width or height is greater than max_incl_dimension or if any opted-in (via -// flags bits) metadata is longer than max_incl_metadata_length. -DecodeImageResult // -DecodeImage(DecodeImageCallbacks& callbacks, - sync_io::Input& input, - DecodeImageArgQuirks quirks = DecodeImageArgQuirks::DefaultValue(), - DecodeImageArgFlags flags = DecodeImageArgFlags::DefaultValue(), - DecodeImageArgPixelBlend pixel_blend = - DecodeImageArgPixelBlend::DefaultValue(), - DecodeImageArgBackgroundColor background_color = - DecodeImageArgBackgroundColor::DefaultValue(), - DecodeImageArgMaxInclDimension max_incl_dimension = - DecodeImageArgMaxInclDimension::DefaultValue(), - DecodeImageArgMaxInclMetadataLength max_incl_metadata_length = - DecodeImageArgMaxInclMetadataLength::DefaultValue()); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_webp__decoder__num_decoded_frames( + const wuffs_webp__decoder* self); -} // namespace wuffs_aux +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__restart_frame( + wuffs_webp__decoder* self, + uint64_t a_index, + uint64_t a_io_position); -// ---------------- Auxiliary - JSON +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_webp__decoder__set_report_metadata( + wuffs_webp__decoder* self, + uint32_t a_fourcc, + bool a_report); -namespace wuffs_aux { +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__tell_me_more( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); -struct DecodeJsonResult { - DecodeJsonResult(std::string&& error_message0, uint64_t cursor_position0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_webp__decoder__workbuf_len( + const wuffs_webp__decoder* self); - std::string error_message; - uint64_t cursor_position; -}; +#ifdef __cplusplus +} // extern "C" +#endif -class DecodeJsonCallbacks { - public: - virtual ~DecodeJsonCallbacks(); +// ---------------- Struct Definitions - // AppendXxx are called for leaf nodes: literals, numbers and strings. For - // strings, the Callbacks implementation is responsible for tracking map keys - // versus other values. +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C - virtual std::string AppendNull() = 0; - virtual std::string AppendBool(bool val) = 0; - virtual std::string AppendF64(double val) = 0; - virtual std::string AppendI64(int64_t val) = 0; - virtual std::string AppendTextString(std::string&& val) = 0; +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - // Push and Pop are called for container nodes: JSON arrays (lists) and JSON - // objects (dictionaries). +struct wuffs_webp__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. // - // The flags bits combine exactly one of: - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT - // and exactly one of: - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. - virtual std::string Push(uint32_t flags) = 0; - virtual std::string Pop(uint32_t flags) = 0; + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__image_decoder; + wuffs_base__vtable null_vtable; - // Done is always the last Callback method called by DecodeJson, whether or - // not parsing the input as JSON encountered an error. Even when successful, - // trailing data may remain in input and buffer. See "Unintuitive JSON - // Parsing" (https://nullprogram.com/blog/2019/12/28/) which discusses JSON - // parsing and when it stops. - // - // Do not keep a reference to buffer or buffer.data.ptr after Done returns, - // as DecodeJson may then de-allocate the backing array. - // - // The default Done implementation is a no-op. - virtual void // - Done(DecodeJsonResult& result, sync_io::Input& input, IOBuffer& buffer); -}; + uint32_t f_pixfmt; + uint32_t f_width; + uint32_t f_height; + uint8_t f_call_sequence; + uint8_t f_code_length_code_lengths[19]; + bool f_sub_chunk_has_padding; + uint64_t f_frame_config_io_position; + uint32_t f_riff_chunk_length; + uint32_t f_sub_chunk_length; + uint32_t f_bits; + uint32_t f_n_bits; + bool f_seen_transform[4]; + uint8_t f_transform_type[4]; + uint8_t f_transform_tile_size_log2[4]; + uint32_t f_n_transforms; + uint32_t f_color_cache_bits; + uint32_t f_overall_color_cache_bits; + uint32_t f_overall_tile_size_log2; + uint32_t f_overall_n_huffman_groups; + uint32_t f_ht_n_symbols; + uint32_t f_ht_code_lengths_remaining; + uint32_t f_color_indexing_palette_size; + uint32_t f_color_indexing_width; + uint32_t f_workbuf_offset_for_transform[4]; + uint32_t f_workbuf_offset_for_color_indexing; + wuffs_base__pixel_swizzler f_swizzler; -extern const char DecodeJson_BadJsonPointer[]; -extern const char DecodeJson_NoMatch[]; + uint32_t p_decode_huffman_groups; + uint32_t p_decode_huffman_tree; + uint32_t p_decode_huffman_tree_simple; + uint32_t p_decode_code_length_code_lengths; + uint32_t p_build_code_lengths; + uint32_t p_decode_pixels_slow; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_do_decode_image_config_limited; + uint32_t p_do_decode_image_config_limited_vp8l; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_decode_transform; + uint32_t p_decode_color_cache_parameters; + uint32_t p_decode_hg_table; + uint32_t p_decode_pixels; + } private_impl; -// The FooArgBar types add structure to Foo's optional arguments. They wrap -// inner representations for several reasons: -// - It provides a home for the DefaultValue static method, for Foo callers -// that want to override some but not all optional arguments. -// - It provides the "Bar" name at Foo call sites, which can help self- -// document Foo calls with many arguemnts. -// - It provides some type safety against accidentally transposing or omitting -// adjacent fundamentally-numeric-typed optional arguments. + struct { + uint8_t f_palette[1024]; + uint32_t f_color_cache[2048]; + uint16_t f_codes[2328]; + uint16_t f_code_lengths[2328]; + uint16_t f_code_lengths_huffman_nodes[37]; + uint16_t f_huffman_nodes[256][6267]; -// DecodeJsonArgQuirks wraps an optional argument to DecodeJson. -struct DecodeJsonArgQuirks { - explicit DecodeJsonArgQuirks(wuffs_base__slice_u32 repr0); - explicit DecodeJsonArgQuirks(uint32_t* ptr, size_t len); + struct { + uint32_t v_hg; + uint32_t v_ht; + } s_decode_huffman_groups; + struct { + uint32_t v_use_second_symbol; + uint32_t v_first_symbol_n_bits; + uint32_t v_symbol0; + uint32_t v_base_offset; + } s_decode_huffman_tree_simple; + struct { + uint32_t v_n_codes; + uint32_t v_i; + } s_decode_code_length_code_lengths; + struct { + uint32_t v_length_n_bits; + uint16_t v_prev_code_length; + uint32_t v_s; + uint32_t v_s_max; + uint16_t v_node; + uint16_t v_repeat_value; + uint32_t v_repeat_n_bits; + } s_build_code_lengths; + struct { + uint64_t v_p; + uint64_t v_p_max; + uint32_t v_tile_size_log2; + uint32_t v_width_in_tiles; + uint32_t v_x; + uint32_t v_y; + uint32_t v_hg; + uint16_t v_node; + uint32_t v_color; + uint32_t v_back_ref_len_n_bits; + uint32_t v_back_ref_len_minus_1; + uint32_t v_back_ref_dist_n_bits; + uint32_t v_back_ref_dist_premap_minus_1; + uint64_t v_color_cache_p; + } s_decode_pixels_slow; + struct { + uint64_t scratch; + } s_do_decode_image_config; + struct { + uint64_t scratch; + } s_do_decode_image_config_limited; + struct { + uint64_t scratch; + } s_do_decode_image_config_limited_vp8l; + struct { + uint32_t v_width; + } s_do_decode_frame; + struct { + uint32_t v_transform_type; + uint32_t v_tile_size_log2; + } s_decode_transform; + struct { + uint32_t v_tile_size_log2; + } s_decode_hg_table; + } private_data; - // DefaultValue returns an empty slice. - static DecodeJsonArgQuirks DefaultValue(); +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; - wuffs_base__slice_u32 repr; -}; + // On failure, the alloc_etc functions return nullptr. They don't throw. -// DecodeJsonArgJsonPointer wraps an optional argument to DecodeJson. -struct DecodeJsonArgJsonPointer { - explicit DecodeJsonArgJsonPointer(std::string repr0); + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_webp__decoder__alloc()); + } - // DefaultValue returns an empty string. - static DecodeJsonArgJsonPointer DefaultValue(); + static inline wuffs_base__image_decoder::unique_ptr + alloc_as__wuffs_base__image_decoder() { + return wuffs_base__image_decoder::unique_ptr( + wuffs_webp__decoder__alloc_as__wuffs_base__image_decoder()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - std::string repr; -}; +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_webp__decoder__struct() = delete; + wuffs_webp__decoder__struct(const wuffs_webp__decoder__struct&) = delete; + wuffs_webp__decoder__struct& operator=( + const wuffs_webp__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) -// DecodeJson calls callbacks based on the JSON-formatted data in input. -// -// On success, the returned error_message is empty and cursor_position counts -// the number of bytes consumed. On failure, error_message is non-empty and -// cursor_position is the location of the error. That error may be a content -// error (invalid JSON) or an input error (e.g. network failure). -// -// json_pointer is a query in the JSON Pointer (RFC 6901) syntax. The callbacks -// run for the input's sub-node that matches the query. DecodeJson_NoMatch is -// returned if no matching sub-node was found. The empty query matches the -// input's root node, consistent with JSON Pointer semantics. -// -// The JSON Pointer implementation is greedy: duplicate keys are not rejected -// but only the first match for each '/'-separated fragment is followed. -DecodeJsonResult // -DecodeJson(DecodeJsonCallbacks& callbacks, - sync_io::Input& input, - DecodeJsonArgQuirks quirks = DecodeJsonArgQuirks::DefaultValue(), - DecodeJsonArgJsonPointer json_pointer = - DecodeJsonArgJsonPointer::DefaultValue()); +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) -} // namespace wuffs_aux + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_webp__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); + } -#endif // defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + inline wuffs_base__image_decoder* + upcast_as__wuffs_base__image_decoder() { + return (wuffs_base__image_decoder*)this; + } -// ‼ WUFFS C HEADER ENDS HERE. -#ifdef WUFFS_IMPLEMENTATION + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_webp__decoder__get_quirk(this, a_key); + } -#ifdef __cplusplus -extern "C" { -#endif + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_webp__decoder__set_quirk(this, a_key, a_value); + } -// ---------------- Fundamentals + inline wuffs_base__status + decode_image_config( + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_webp__decoder__decode_image_config(this, a_dst, a_src); + } -// WUFFS_BASE__MAGIC is a magic number to check that initializers are called. -// It's not foolproof, given C doesn't automatically zero memory before use, -// but it should catch 99.99% of cases. -// -// Its (non-zero) value is arbitrary, based on md5sum("wuffs"). -#define WUFFS_BASE__MAGIC ((uint32_t)0x3CCB6C71) + inline wuffs_base__status + decode_frame_config( + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_webp__decoder__decode_frame_config(this, a_dst, a_src); + } -// WUFFS_BASE__DISABLED is a magic number to indicate that a non-recoverable -// error was previously encountered. -// -// Its (non-zero) value is arbitrary, based on md5sum("disabled"). -#define WUFFS_BASE__DISABLED ((uint32_t)0x075AE3D2) + inline wuffs_base__status + decode_frame( + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + return wuffs_webp__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + } -// Use switch cases for coroutine suspension points, similar to the technique -// in https://www.chiark.greenend.org.uk/~sgtatham/coroutines.html -// -// The implicit fallthrough is intentional. -// -// We use trivial macros instead of an explicit assignment and case statement -// so that clang-format doesn't get confused by the unusual "case"s. -#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0 case 0:; -#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT(n) \ - coro_susp_point = n; \ - case n:; + inline wuffs_base__rect_ie_u32 + frame_dirty_rect() const { + return wuffs_webp__decoder__frame_dirty_rect(this); + } -#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(n) \ - if (!status.repr) { \ - goto ok; \ - } else if (*status.repr != '$') { \ - goto exit; \ - } \ - coro_susp_point = n; \ - goto suspend; \ - case n:; + inline uint32_t + num_animation_loops() const { + return wuffs_webp__decoder__num_animation_loops(this); + } -// The "defined(__clang__)" isn't redundant. While vanilla clang defines -// __GNUC__, clang-cl (which mimics MSVC's cl.exe) does not. -#if defined(__GNUC__) || defined(__clang__) -#define WUFFS_BASE__LIKELY(expr) (__builtin_expect(!!(expr), 1)) -#define WUFFS_BASE__UNLIKELY(expr) (__builtin_expect(!!(expr), 0)) -#else -#define WUFFS_BASE__LIKELY(expr) (expr) -#define WUFFS_BASE__UNLIKELY(expr) (expr) -#endif + inline uint64_t + num_decoded_frame_configs() const { + return wuffs_webp__decoder__num_decoded_frame_configs(this); + } -// -------- + inline uint64_t + num_decoded_frames() const { + return wuffs_webp__decoder__num_decoded_frames(this); + } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wcast-qual" -#endif -static inline uint8_t* // -wuffs_base__strip_const_from_u8_ptr(const uint8_t* ptr) { - return (uint8_t*)ptr; -} -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif + inline wuffs_base__status + restart_frame( + uint64_t a_index, + uint64_t a_io_position) { + return wuffs_webp__decoder__restart_frame(this, a_index, a_io_position); + } -// -------- + inline wuffs_base__empty_struct + set_report_metadata( + uint32_t a_fourcc, + bool a_report) { + return wuffs_webp__decoder__set_report_metadata(this, a_fourcc, a_report); + } -static inline wuffs_base__empty_struct // -wuffs_base__ignore_status(wuffs_base__status z) { - return wuffs_base__make_empty_struct(); -} + inline wuffs_base__status + tell_me_more( + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + return wuffs_webp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + } -static inline wuffs_base__status // -wuffs_base__status__ensure_not_a_suspension(wuffs_base__status z) { - if (z.repr && (*z.repr == '$')) { - z.repr = wuffs_base__error__cannot_return_a_suspension; + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_webp__decoder__workbuf_len(this); } - return z; -} -// -------- +#endif // __cplusplus +}; // struct wuffs_webp__decoder__struct -// wuffs_base__iterate_total_advance returns the exclusive pointer-offset at -// which iteration should stop. The overall slice has length total_len, each -// iteration's sub-slice has length iter_len and are placed iter_advance apart. -// -// The iter_advance may not be larger than iter_len. The iter_advance may be -// smaller than iter_len, in which case the sub-slices will overlap. -// -// The return value r satisfies ((0 <= r) && (r <= total_len)). -// -// For example, if total_len = 15, iter_len = 5 and iter_advance = 3, there are -// four iterations at offsets 0, 3, 6 and 9. This function returns 12. -// -// 0123456789012345 -// [....] -// [....] -// [....] -// [....] -// $ -// 0123456789012345 -// -// For example, if total_len = 15, iter_len = 5 and iter_advance = 5, there are -// three iterations at offsets 0, 5 and 10. This function returns 15. +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) || defined(WUFFS_NONMONOLITHIC) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) || defined(WUFFS_NONMONOLITHIC) + +// ---------------- Status Codes + +// ---------------- Public Consts + +// ---------------- Struct Declarations + +typedef struct wuffs_xxhash32__hasher__struct wuffs_xxhash32__hasher; + +#ifdef __cplusplus +extern "C" { +#endif + +// ---------------- Public Initializer Prototypes + +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". // -// 0123456789012345 -// [....] -// [....] -// [....] -// $ -// 0123456789012345 -static inline size_t // -wuffs_base__iterate_total_advance(size_t total_len, - size_t iter_len, - size_t iter_advance) { - if (total_len >= iter_len) { - size_t n = total_len - iter_len; - return ((n / iter_advance) * iter_advance) + iter_advance; - } - return 0; -} +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -// ---------------- Numeric Types +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_xxhash32__hasher__initialize( + wuffs_xxhash32__hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); -extern const uint8_t wuffs_base__low_bits_mask__u8[8]; -extern const uint16_t wuffs_base__low_bits_mask__u16[16]; -extern const uint32_t wuffs_base__low_bits_mask__u32[32]; -extern const uint64_t wuffs_base__low_bits_mask__u64[64]; +size_t +sizeof__wuffs_xxhash32__hasher(void); -#define WUFFS_BASE__LOW_BITS_MASK__U8(n) (wuffs_base__low_bits_mask__u8[n]) -#define WUFFS_BASE__LOW_BITS_MASK__U16(n) (wuffs_base__low_bits_mask__u16[n]) -#define WUFFS_BASE__LOW_BITS_MASK__U32(n) (wuffs_base__low_bits_mask__u32[n]) -#define WUFFS_BASE__LOW_BITS_MASK__U64(n) (wuffs_base__low_bits_mask__u64[n]) +// ---------------- Allocs -// -------- +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. -static inline void // -wuffs_base__u8__sat_add_indirect(uint8_t* x, uint8_t y) { - *x = wuffs_base__u8__sat_add(*x, y); -} +wuffs_xxhash32__hasher* +wuffs_xxhash32__hasher__alloc(void); -static inline void // -wuffs_base__u8__sat_sub_indirect(uint8_t* x, uint8_t y) { - *x = wuffs_base__u8__sat_sub(*x, y); +static inline wuffs_base__hasher_u32* +wuffs_xxhash32__hasher__alloc_as__wuffs_base__hasher_u32(void) { + return (wuffs_base__hasher_u32*)(wuffs_xxhash32__hasher__alloc()); } -static inline void // -wuffs_base__u16__sat_add_indirect(uint16_t* x, uint16_t y) { - *x = wuffs_base__u16__sat_add(*x, y); -} +// ---------------- Upcasts -static inline void // -wuffs_base__u16__sat_sub_indirect(uint16_t* x, uint16_t y) { - *x = wuffs_base__u16__sat_sub(*x, y); +static inline wuffs_base__hasher_u32* +wuffs_xxhash32__hasher__upcast_as__wuffs_base__hasher_u32( + wuffs_xxhash32__hasher* p) { + return (wuffs_base__hasher_u32*)p; } -static inline void // -wuffs_base__u32__sat_add_indirect(uint32_t* x, uint32_t y) { - *x = wuffs_base__u32__sat_add(*x, y); -} +// ---------------- Public Function Prototypes -static inline void // -wuffs_base__u32__sat_sub_indirect(uint32_t* x, uint32_t y) { - *x = wuffs_base__u32__sat_sub(*x, y); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash32__hasher__get_quirk( + const wuffs_xxhash32__hasher* self, + uint32_t a_key); -static inline void // -wuffs_base__u64__sat_add_indirect(uint64_t* x, uint64_t y) { - *x = wuffs_base__u64__sat_add(*x, y); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xxhash32__hasher__set_quirk( + wuffs_xxhash32__hasher* self, + uint32_t a_key, + uint64_t a_value); -static inline void // -wuffs_base__u64__sat_sub_indirect(uint64_t* x, uint64_t y) { - *x = wuffs_base__u64__sat_sub(*x, y); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_xxhash32__hasher__update( + wuffs_xxhash32__hasher* self, + wuffs_base__slice_u8 a_x); -// ---------------- Numeric Types (Utility) +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_xxhash32__hasher__update_u32( + wuffs_xxhash32__hasher* self, + wuffs_base__slice_u8 a_x); -#define wuffs_base__utility__sign_extend_convert_u16_u32(a) \ - ((uint32_t)(int32_t)(int16_t)(a)) +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_xxhash32__hasher__checksum_u32( + const wuffs_xxhash32__hasher* self); -#define wuffs_base__utility__sign_extend_rshift_u32(a, n) \ - ((uint32_t)(((int32_t)(a)) >> (n))) +#ifdef __cplusplus +} // extern "C" +#endif -#define wuffs_base__utility__sign_extend_rshift_u64(a, n) \ - ((uint64_t)(((int64_t)(a)) >> (n))) +// ---------------- Struct Definitions -// ---------------- Slices and Tables +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C -// wuffs_base__slice_u8__prefix returns up to the first up_to bytes of s. -static inline wuffs_base__slice_u8 // -wuffs_base__slice_u8__prefix(wuffs_base__slice_u8 s, uint64_t up_to) { - if (((uint64_t)(s.len)) > up_to) { - s.len = ((size_t)up_to); +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_xxhash32__hasher__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__hasher_u32; + wuffs_base__vtable null_vtable; + + uint32_t f_length_modulo_u32; + bool f_length_overflows_u32; + uint8_t f_padding0; + uint8_t f_padding1; + uint8_t f_buf_len; + uint8_t f_buf_data[16]; + uint32_t f_v0; + uint32_t f_v1; + uint32_t f_v2; + uint32_t f_v3; + } private_impl; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_xxhash32__hasher__alloc()); } - return s; -} -// wuffs_base__slice_u8__suffix returns up to the last up_to bytes of s. -static inline wuffs_base__slice_u8 // -wuffs_base__slice_u8__suffix(wuffs_base__slice_u8 s, uint64_t up_to) { - if (((uint64_t)(s.len)) > up_to) { - s.ptr += ((uint64_t)(s.len)) - up_to; - s.len = ((size_t)up_to); + static inline wuffs_base__hasher_u32::unique_ptr + alloc_as__wuffs_base__hasher_u32() { + return wuffs_base__hasher_u32::unique_ptr( + wuffs_xxhash32__hasher__alloc_as__wuffs_base__hasher_u32()); } - return s; -} +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) -// wuffs_base__slice_u8__copy_from_slice calls memmove(dst.ptr, src.ptr, len) -// where len is the minimum of dst.len and src.len. -// -// Passing a wuffs_base__slice_u8 with all fields NULL or zero (a valid, empty -// slice) is valid and results in a no-op. -static inline uint64_t // -wuffs_base__slice_u8__copy_from_slice(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src) { - size_t len = dst.len < src.len ? dst.len : src.len; - if (len > 0) { - memmove(dst.ptr, src.ptr, len); +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_xxhash32__hasher__struct() = delete; + wuffs_xxhash32__hasher__struct(const wuffs_xxhash32__hasher__struct&) = delete; + wuffs_xxhash32__hasher__struct& operator=( + const wuffs_xxhash32__hasher__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) + + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_xxhash32__hasher__initialize( + this, sizeof_star_self, wuffs_version, options); } - return len; -} -static inline wuffs_base__empty_struct // -wuffs_base__bulk_load_host_endian(void* ptr, - size_t len, - wuffs_base__slice_u8 src) { - if (len && (len <= src.len)) { - memmove(ptr, src.ptr, len); + inline wuffs_base__hasher_u32* + upcast_as__wuffs_base__hasher_u32() { + return (wuffs_base__hasher_u32*)this; } - return wuffs_base__make_empty_struct(); -} -static inline wuffs_base__empty_struct // -wuffs_base__bulk_memset(void* ptr, size_t len, uint8_t byte_value) { - if (len) { - memset(ptr, byte_value, len); + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_xxhash32__hasher__get_quirk(this, a_key); } - return wuffs_base__make_empty_struct(); -} -static inline wuffs_base__empty_struct // -wuffs_base__bulk_save_host_endian(void* ptr, - size_t len, - wuffs_base__slice_u8 dst) { - if (len && (len <= dst.len)) { - memmove(dst.ptr, ptr, len); + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_xxhash32__hasher__set_quirk(this, a_key, a_value); } - return wuffs_base__make_empty_struct(); -} -// -------- + inline wuffs_base__empty_struct + update( + wuffs_base__slice_u8 a_x) { + return wuffs_xxhash32__hasher__update(this, a_x); + } -static inline wuffs_base__slice_u8 // -wuffs_base__table_u8__row_u32(wuffs_base__table_u8 t, uint32_t y) { - if (y < t.height) { - return wuffs_base__make_slice_u8(t.ptr + (t.stride * y), t.width); + inline uint32_t + update_u32( + wuffs_base__slice_u8 a_x) { + return wuffs_xxhash32__hasher__update_u32(this, a_x); } - return wuffs_base__make_slice_u8(NULL, 0); -} -// ---------------- Slices and Tables (Utility) + inline uint32_t + checksum_u32() const { + return wuffs_xxhash32__hasher__checksum_u32(this); + } -#define wuffs_base__utility__empty_slice_u8 wuffs_base__empty_slice_u8 +#endif // __cplusplus +}; // struct wuffs_xxhash32__hasher__struct -// ---------------- Ranges and Rects +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -static inline uint32_t // -wuffs_base__range_ii_u32__get_min_incl(const wuffs_base__range_ii_u32* r) { - return r->min_incl; -} +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) || defined(WUFFS_NONMONOLITHIC) -static inline uint32_t // -wuffs_base__range_ii_u32__get_max_incl(const wuffs_base__range_ii_u32* r) { - return r->max_incl; -} +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) || defined(WUFFS_NONMONOLITHIC) -static inline uint32_t // -wuffs_base__range_ie_u32__get_min_incl(const wuffs_base__range_ie_u32* r) { - return r->min_incl; -} +// ---------------- Status Codes -static inline uint32_t // -wuffs_base__range_ie_u32__get_max_excl(const wuffs_base__range_ie_u32* r) { - return r->max_excl; -} +// ---------------- Public Consts -static inline uint64_t // -wuffs_base__range_ii_u64__get_min_incl(const wuffs_base__range_ii_u64* r) { - return r->min_incl; -} +// ---------------- Struct Declarations -static inline uint64_t // -wuffs_base__range_ii_u64__get_max_incl(const wuffs_base__range_ii_u64* r) { - return r->max_incl; -} +typedef struct wuffs_xxhash64__hasher__struct wuffs_xxhash64__hasher; -static inline uint64_t // -wuffs_base__range_ie_u64__get_min_incl(const wuffs_base__range_ie_u64* r) { - return r->min_incl; -} +#ifdef __cplusplus +extern "C" { +#endif -static inline uint64_t // -wuffs_base__range_ie_u64__get_max_excl(const wuffs_base__range_ie_u64* r) { - return r->max_excl; -} +// ---------------- Public Initializer Prototypes -// ---------------- Ranges and Rects (Utility) +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -#define wuffs_base__utility__empty_range_ii_u32 wuffs_base__empty_range_ii_u32 -#define wuffs_base__utility__empty_range_ie_u32 wuffs_base__empty_range_ie_u32 -#define wuffs_base__utility__empty_range_ii_u64 wuffs_base__empty_range_ii_u64 -#define wuffs_base__utility__empty_range_ie_u64 wuffs_base__empty_range_ie_u64 -#define wuffs_base__utility__empty_rect_ii_u32 wuffs_base__empty_rect_ii_u32 -#define wuffs_base__utility__empty_rect_ie_u32 wuffs_base__empty_rect_ie_u32 -#define wuffs_base__utility__make_range_ii_u32 wuffs_base__make_range_ii_u32 -#define wuffs_base__utility__make_range_ie_u32 wuffs_base__make_range_ie_u32 -#define wuffs_base__utility__make_range_ii_u64 wuffs_base__make_range_ii_u64 -#define wuffs_base__utility__make_range_ie_u64 wuffs_base__make_range_ie_u64 -#define wuffs_base__utility__make_rect_ii_u32 wuffs_base__make_rect_ii_u32 -#define wuffs_base__utility__make_rect_ie_u32 wuffs_base__make_rect_ie_u32 +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_xxhash64__hasher__initialize( + wuffs_xxhash64__hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); -// ---------------- I/O +size_t +sizeof__wuffs_xxhash64__hasher(void); -static inline uint64_t // -wuffs_base__io__count_since(uint64_t mark, uint64_t index) { - if (index >= mark) { - return index - mark; - } - return 0; -} +// ---------------- Allocs -// TODO: drop the "const" in "const uint8_t* ptr". Some though required about -// the base.io_reader.since method returning a mutable "slice base.u8". -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wcast-qual" -#endif -static inline wuffs_base__slice_u8 // -wuffs_base__io__since(uint64_t mark, uint64_t index, const uint8_t* ptr) { - if (index >= mark) { - return wuffs_base__make_slice_u8(((uint8_t*)ptr) + mark, - ((size_t)(index - mark))); - } - return wuffs_base__make_slice_u8(NULL, 0); -} -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. -// -------- +wuffs_xxhash64__hasher* +wuffs_xxhash64__hasher__alloc(void); -static inline void // -wuffs_base__io_reader__limit(const uint8_t** ptr_io2_r, - const uint8_t* iop_r, - uint64_t limit) { - if (((uint64_t)(*ptr_io2_r - iop_r)) > limit) { - *ptr_io2_r = iop_r + limit; - } +static inline wuffs_base__hasher_u64* +wuffs_xxhash64__hasher__alloc_as__wuffs_base__hasher_u64(void) { + return (wuffs_base__hasher_u64*)(wuffs_xxhash64__hasher__alloc()); } -static inline uint32_t // -wuffs_base__io_reader__limited_copy_u32_to_slice(const uint8_t** ptr_iop_r, - const uint8_t* io2_r, - uint32_t length, - wuffs_base__slice_u8 dst) { - const uint8_t* iop_r = *ptr_iop_r; - size_t n = dst.len; - if (n > length) { - n = length; - } - if (n > ((size_t)(io2_r - iop_r))) { - n = (size_t)(io2_r - iop_r); - } - if (n > 0) { - memmove(dst.ptr, iop_r, n); - *ptr_iop_r += n; - } - return (uint32_t)(n); +// ---------------- Upcasts + +static inline wuffs_base__hasher_u64* +wuffs_xxhash64__hasher__upcast_as__wuffs_base__hasher_u64( + wuffs_xxhash64__hasher* p) { + return (wuffs_base__hasher_u64*)p; } -// wuffs_base__io_reader__match7 returns whether the io_reader's upcoming bytes -// start with the given prefix (up to 7 bytes long). It is peek-like, not -// read-like, in that there are no side-effects. -// -// The low 3 bits of a hold the prefix length, n. -// -// The high 56 bits of a hold the prefix itself, in little-endian order. The -// first prefix byte is in bits 8..=15, the second prefix byte is in bits -// 16..=23, etc. The high (8 * (7 - n)) bits are ignored. -// -// There are three possible return values: -// - 0 means success. -// - 1 means inconclusive, equivalent to "$short read". -// - 2 means failure. -static inline uint32_t // -wuffs_base__io_reader__match7(const uint8_t* iop_r, - const uint8_t* io2_r, - wuffs_base__io_buffer* r, - uint64_t a) { - uint32_t n = a & 7; - a >>= 8; - if ((io2_r - iop_r) >= 8) { - uint64_t x = wuffs_base__peek_u64le__no_bounds_check(iop_r); - uint32_t shift = 8 * (8 - n); - return ((a << shift) == (x << shift)) ? 0 : 2; - } - for (; n > 0; n--) { - if (iop_r >= io2_r) { - return (r && r->meta.closed) ? 2 : 1; - } else if (*iop_r != ((uint8_t)(a))) { - return 2; - } - iop_r++; - a >>= 8; - } - return 0; -} +// ---------------- Public Function Prototypes -static inline wuffs_base__io_buffer* // -wuffs_base__io_reader__set(wuffs_base__io_buffer* b, - const uint8_t** ptr_iop_r, - const uint8_t** ptr_io0_r, - const uint8_t** ptr_io1_r, - const uint8_t** ptr_io2_r, - wuffs_base__slice_u8 data, - uint64_t history_position) { - b->data = data; - b->meta.wi = data.len; - b->meta.ri = 0; - b->meta.pos = history_position; - b->meta.closed = false; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash64__hasher__get_quirk( + const wuffs_xxhash64__hasher* self, + uint32_t a_key); - *ptr_iop_r = data.ptr; - *ptr_io0_r = data.ptr; - *ptr_io1_r = data.ptr; - *ptr_io2_r = data.ptr + data.len; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xxhash64__hasher__set_quirk( + wuffs_xxhash64__hasher* self, + uint32_t a_key, + uint64_t a_value); - return b; -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_xxhash64__hasher__update( + wuffs_xxhash64__hasher* self, + wuffs_base__slice_u8 a_x); -// -------- +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash64__hasher__update_u64( + wuffs_xxhash64__hasher* self, + wuffs_base__slice_u8 a_x); -static inline uint64_t // -wuffs_base__io_writer__copy_from_slice(uint8_t** ptr_iop_w, - uint8_t* io2_w, - wuffs_base__slice_u8 src) { - uint8_t* iop_w = *ptr_iop_w; - size_t n = src.len; - if (n > ((size_t)(io2_w - iop_w))) { - n = (size_t)(io2_w - iop_w); - } - if (n > 0) { - memmove(iop_w, src.ptr, n); - *ptr_iop_w += n; - } - return (uint64_t)(n); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash64__hasher__checksum_u64( + const wuffs_xxhash64__hasher* self); -static inline void // -wuffs_base__io_writer__limit(uint8_t** ptr_io2_w, - uint8_t* iop_w, - uint64_t limit) { - if (((uint64_t)(*ptr_io2_w - iop_w)) > limit) { - *ptr_io2_w = iop_w + limit; - } -} +#ifdef __cplusplus +} // extern "C" +#endif -static inline uint32_t // -wuffs_base__io_writer__limited_copy_u32_from_history(uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - if (!distance) { - return 0; - } - uint8_t* p = *ptr_iop_w; - if ((size_t)(p - io0_w) < (size_t)(distance)) { - return 0; - } - uint8_t* q = p - distance; - size_t n = (size_t)(io2_w - p); - if ((size_t)(length) > n) { - length = (uint32_t)(n); - } else { - n = (size_t)(length); - } - // TODO: unrolling by 3 seems best for the std/deflate benchmarks, but that - // is mostly because 3 is the minimum length for the deflate format. This - // function implementation shouldn't overfit to that one format. Perhaps the - // limited_copy_u32_from_history Wuffs method should also take an unroll hint - // argument, and the cgen can look if that argument is the constant - // expression '3'. - // - // See also wuffs_base__io_writer__limited_copy_u32_from_history_fast below. - for (; n >= 3; n -= 3) { - *p++ = *q++; - *p++ = *q++; - *p++ = *q++; - } - for (; n; n--) { - *p++ = *q++; - } - *ptr_iop_w = p; - return length; -} +// ---------------- Struct Definitions -// wuffs_base__io_writer__limited_copy_u32_from_history_fast is like the -// wuffs_base__io_writer__limited_copy_u32_from_history function above, but has -// stronger pre-conditions. +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. // -// The caller needs to prove that: -// - length <= (io2_w - *ptr_iop_w) -// - distance >= 1 -// - distance <= (*ptr_iop_w - io0_w) -static inline uint32_t // -wuffs_base__io_writer__limited_copy_u32_from_history_fast(uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - uint8_t* p = *ptr_iop_w; - uint8_t* q = p - distance; - uint32_t n = length; - for (; n >= 3; n -= 3) { - *p++ = *q++; - *p++ = *q++; - *p++ = *q++; - } - for (; n; n--) { - *p++ = *q++; +// See https://en.wikipedia.org/wiki/Opaque_pointer#C + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_xxhash64__hasher__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__hasher_u64; + wuffs_base__vtable null_vtable; + + uint64_t f_length_modulo_u64; + bool f_length_overflows_u64; + uint8_t f_padding0; + uint8_t f_padding1; + uint8_t f_padding2; + uint32_t f_buf_len; + uint8_t f_buf_data[32]; + uint64_t f_v0; + uint64_t f_v1; + uint64_t f_v2; + uint64_t f_v3; + } private_impl; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_xxhash64__hasher__alloc()); } - *ptr_iop_w = p; - return length; -} -// wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast -// copies the previous byte (the one immediately before *ptr_iop_w), copying 8 -// byte chunks at a time. Each chunk contains 8 repetitions of the same byte. -// -// In terms of number of bytes copied, length is rounded up to a multiple of 8. -// As a special case, a zero length rounds up to 8 (even though 0 is already a -// multiple of 8), since there is always at least one 8 byte chunk copied. -// -// In terms of advancing *ptr_iop_w, length is not rounded up. -// -// The caller needs to prove that: -// - (length + 8) <= (io2_w - *ptr_iop_w) -// - distance == 1 -// - distance <= (*ptr_iop_w - io0_w) -static inline uint32_t // -wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( - uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - uint8_t* p = *ptr_iop_w; - uint64_t x = p[-1]; - x |= x << 8; - x |= x << 16; - x |= x << 32; - uint32_t n = length; - while (1) { - wuffs_base__poke_u64le__no_bounds_check(p, x); - if (n <= 8) { - p += n; - break; - } - p += 8; - n -= 8; + static inline wuffs_base__hasher_u64::unique_ptr + alloc_as__wuffs_base__hasher_u64() { + return wuffs_base__hasher_u64::unique_ptr( + wuffs_xxhash64__hasher__alloc_as__wuffs_base__hasher_u64()); } - *ptr_iop_w = p; - return length; -} +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) -// wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast is -// like the wuffs_base__io_writer__limited_copy_u32_from_history_fast function -// above, but copies 8 byte chunks at a time. -// -// In terms of number of bytes copied, length is rounded up to a multiple of 8. -// As a special case, a zero length rounds up to 8 (even though 0 is already a -// multiple of 8), since there is always at least one 8 byte chunk copied. -// -// In terms of advancing *ptr_iop_w, length is not rounded up. -// -// The caller needs to prove that: -// - (length + 8) <= (io2_w - *ptr_iop_w) -// - distance >= 8 -// - distance <= (*ptr_iop_w - io0_w) -static inline uint32_t // -wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( - uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - uint8_t* p = *ptr_iop_w; - uint8_t* q = p - distance; - uint32_t n = length; - while (1) { - memcpy(p, q, 8); - if (n <= 8) { - p += n; - break; - } - p += 8; - q += 8; - n -= 8; +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_xxhash64__hasher__struct() = delete; + wuffs_xxhash64__hasher__struct(const wuffs_xxhash64__hasher__struct&) = delete; + wuffs_xxhash64__hasher__struct& operator=( + const wuffs_xxhash64__hasher__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) + + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_xxhash64__hasher__initialize( + this, sizeof_star_self, wuffs_version, options); } - *ptr_iop_w = p; - return length; -} -static inline uint32_t // -wuffs_base__io_writer__limited_copy_u32_from_reader(uint8_t** ptr_iop_w, - uint8_t* io2_w, - uint32_t length, - const uint8_t** ptr_iop_r, - const uint8_t* io2_r) { - uint8_t* iop_w = *ptr_iop_w; - size_t n = length; - if (n > ((size_t)(io2_w - iop_w))) { - n = (size_t)(io2_w - iop_w); + inline wuffs_base__hasher_u64* + upcast_as__wuffs_base__hasher_u64() { + return (wuffs_base__hasher_u64*)this; } - const uint8_t* iop_r = *ptr_iop_r; - if (n > ((size_t)(io2_r - iop_r))) { - n = (size_t)(io2_r - iop_r); + + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_xxhash64__hasher__get_quirk(this, a_key); } - if (n > 0) { - memmove(iop_w, iop_r, n); - *ptr_iop_w += n; - *ptr_iop_r += n; + + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_xxhash64__hasher__set_quirk(this, a_key, a_value); } - return (uint32_t)(n); -} -static inline uint32_t // -wuffs_base__io_writer__limited_copy_u32_from_slice(uint8_t** ptr_iop_w, - uint8_t* io2_w, - uint32_t length, - wuffs_base__slice_u8 src) { - uint8_t* iop_w = *ptr_iop_w; - size_t n = src.len; - if (n > length) { - n = length; + inline wuffs_base__empty_struct + update( + wuffs_base__slice_u8 a_x) { + return wuffs_xxhash64__hasher__update(this, a_x); } - if (n > ((size_t)(io2_w - iop_w))) { - n = (size_t)(io2_w - iop_w); + + inline uint64_t + update_u64( + wuffs_base__slice_u8 a_x) { + return wuffs_xxhash64__hasher__update_u64(this, a_x); } - if (n > 0) { - memmove(iop_w, src.ptr, n); - *ptr_iop_w += n; + + inline uint64_t + checksum_u64() const { + return wuffs_xxhash64__hasher__checksum_u64(this); } - return (uint32_t)(n); -} -static inline wuffs_base__io_buffer* // -wuffs_base__io_writer__set(wuffs_base__io_buffer* b, - uint8_t** ptr_iop_w, - uint8_t** ptr_io0_w, - uint8_t** ptr_io1_w, - uint8_t** ptr_io2_w, - wuffs_base__slice_u8 data, - uint64_t history_position) { - b->data = data; - b->meta.wi = 0; - b->meta.ri = 0; - b->meta.pos = history_position; - b->meta.closed = false; +#endif // __cplusplus +}; // struct wuffs_xxhash64__hasher__struct - *ptr_iop_w = data.ptr; - *ptr_io0_w = data.ptr; - *ptr_io1_w = data.ptr; - *ptr_io2_w = data.ptr + data.len; +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - return b; -} +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) || defined(WUFFS_NONMONOLITHIC) -// ---------------- I/O (Utility) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XZ) || defined(WUFFS_NONMONOLITHIC) -#define wuffs_base__utility__empty_io_reader wuffs_base__empty_io_reader -#define wuffs_base__utility__empty_io_writer wuffs_base__empty_io_writer +// ---------------- Status Codes -// ---------------- Tokens +extern const char wuffs_xz__error__bad_bcj_offset[]; +extern const char wuffs_xz__error__bad_block_header[]; +extern const char wuffs_xz__error__bad_checksum[]; +extern const char wuffs_xz__error__bad_filter[]; +extern const char wuffs_xz__error__bad_footer[]; +extern const char wuffs_xz__error__bad_header[]; +extern const char wuffs_xz__error__bad_header_concatenated_stream[]; +extern const char wuffs_xz__error__bad_index[]; +extern const char wuffs_xz__error__bad_padding[]; +extern const char wuffs_xz__error__truncated_input[]; +extern const char wuffs_xz__error__unsupported_checksum_algorithm[]; +extern const char wuffs_xz__error__unsupported_filter[]; +extern const char wuffs_xz__error__unsupported_filter_combination[]; -// ---------------- Tokens (Utility) +// ---------------- Public Consts -// ---------------- Memory Allocation +#define WUFFS_XZ__QUIRK_DECODE_STANDALONE_CONCATENATED_STREAMS 2021322752u -// ---------------- Images +#define WUFFS_XZ__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( - const wuffs_base__pixel_swizzler* p, - uint32_t up_to_num_pixels, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - const uint8_t** ptr_iop_r, - const uint8_t* io2_r); +#define WUFFS_XZ__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 4294967568u -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( - const wuffs_base__pixel_swizzler* p, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - const uint8_t** ptr_iop_r, - const uint8_t* io2_r); +// ---------------- Struct Declarations -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black( - const wuffs_base__pixel_swizzler* p, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - uint64_t num_pixels); +typedef struct wuffs_xz__decoder__struct wuffs_xz__decoder; -WUFFS_BASE__MAYBE_STATIC wuffs_base__status // -wuffs_base__pixel_swizzler__swizzle_ycck( - const wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_buffer* dst, - wuffs_base__slice_u8 dst_palette, - uint32_t width, - uint32_t height, - wuffs_base__slice_u8 src0, - wuffs_base__slice_u8 src1, - wuffs_base__slice_u8 src2, - wuffs_base__slice_u8 src3, - uint32_t width0, - uint32_t width1, - uint32_t width2, - uint32_t width3, - uint32_t height0, - uint32_t height1, - uint32_t height2, - uint32_t height3, - uint32_t stride0, - uint32_t stride1, - uint32_t stride2, - uint32_t stride3, - uint8_t h0, - uint8_t h1, - uint8_t h2, - uint8_t h3, - uint8_t v0, - uint8_t v1, - uint8_t v2, - uint8_t v3, - bool is_rgb_or_cmyk, - bool triangle_filter_for_2to1, - wuffs_base__slice_u8 scratch_buffer_2k); +#ifdef __cplusplus +extern "C" { +#endif -// ---------------- Images (Utility) +// ---------------- Public Initializer Prototypes -#define wuffs_base__utility__make_pixel_format wuffs_base__make_pixel_format +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -// ---------------- String Conversions +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_xz__decoder__initialize( + wuffs_xz__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); -// ---------------- Unicode and UTF-8 +size_t +sizeof__wuffs_xz__decoder(void); -// ---------------- +// ---------------- Allocs -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__CORE) +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. -const uint8_t wuffs_base__low_bits_mask__u8[8] = { - 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, -}; +wuffs_xz__decoder* +wuffs_xz__decoder__alloc(void); -const uint16_t wuffs_base__low_bits_mask__u16[16] = { - 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, - 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, -}; +static inline wuffs_base__io_transformer* +wuffs_xz__decoder__alloc_as__wuffs_base__io_transformer(void) { + return (wuffs_base__io_transformer*)(wuffs_xz__decoder__alloc()); +} -const uint32_t wuffs_base__low_bits_mask__u32[32] = { - 0x00000000, 0x00000001, 0x00000003, 0x00000007, 0x0000000F, 0x0000001F, - 0x0000003F, 0x0000007F, 0x000000FF, 0x000001FF, 0x000003FF, 0x000007FF, - 0x00000FFF, 0x00001FFF, 0x00003FFF, 0x00007FFF, 0x0000FFFF, 0x0001FFFF, - 0x0003FFFF, 0x0007FFFF, 0x000FFFFF, 0x001FFFFF, 0x003FFFFF, 0x007FFFFF, - 0x00FFFFFF, 0x01FFFFFF, 0x03FFFFFF, 0x07FFFFFF, 0x0FFFFFFF, 0x1FFFFFFF, - 0x3FFFFFFF, 0x7FFFFFFF, -}; +// ---------------- Upcasts -const uint64_t wuffs_base__low_bits_mask__u64[64] = { - 0x0000000000000000, 0x0000000000000001, 0x0000000000000003, - 0x0000000000000007, 0x000000000000000F, 0x000000000000001F, - 0x000000000000003F, 0x000000000000007F, 0x00000000000000FF, - 0x00000000000001FF, 0x00000000000003FF, 0x00000000000007FF, - 0x0000000000000FFF, 0x0000000000001FFF, 0x0000000000003FFF, - 0x0000000000007FFF, 0x000000000000FFFF, 0x000000000001FFFF, - 0x000000000003FFFF, 0x000000000007FFFF, 0x00000000000FFFFF, - 0x00000000001FFFFF, 0x00000000003FFFFF, 0x00000000007FFFFF, - 0x0000000000FFFFFF, 0x0000000001FFFFFF, 0x0000000003FFFFFF, - 0x0000000007FFFFFF, 0x000000000FFFFFFF, 0x000000001FFFFFFF, - 0x000000003FFFFFFF, 0x000000007FFFFFFF, 0x00000000FFFFFFFF, - 0x00000001FFFFFFFF, 0x00000003FFFFFFFF, 0x00000007FFFFFFFF, - 0x0000000FFFFFFFFF, 0x0000001FFFFFFFFF, 0x0000003FFFFFFFFF, - 0x0000007FFFFFFFFF, 0x000000FFFFFFFFFF, 0x000001FFFFFFFFFF, - 0x000003FFFFFFFFFF, 0x000007FFFFFFFFFF, 0x00000FFFFFFFFFFF, - 0x00001FFFFFFFFFFF, 0x00003FFFFFFFFFFF, 0x00007FFFFFFFFFFF, - 0x0000FFFFFFFFFFFF, 0x0001FFFFFFFFFFFF, 0x0003FFFFFFFFFFFF, - 0x0007FFFFFFFFFFFF, 0x000FFFFFFFFFFFFF, 0x001FFFFFFFFFFFFF, - 0x003FFFFFFFFFFFFF, 0x007FFFFFFFFFFFFF, 0x00FFFFFFFFFFFFFF, - 0x01FFFFFFFFFFFFFF, 0x03FFFFFFFFFFFFFF, 0x07FFFFFFFFFFFFFF, - 0x0FFFFFFFFFFFFFFF, 0x1FFFFFFFFFFFFFFF, 0x3FFFFFFFFFFFFFFF, - 0x7FFFFFFFFFFFFFFF, -}; +static inline wuffs_base__io_transformer* +wuffs_xz__decoder__upcast_as__wuffs_base__io_transformer( + wuffs_xz__decoder* p) { + return (wuffs_base__io_transformer*)p; +} -const uint32_t wuffs_base__pixel_format__bits_per_channel[16] = { - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, - 0x08, 0x0A, 0x0C, 0x10, 0x18, 0x20, 0x30, 0x40, -}; +// ---------------- Public Function Prototypes -const char wuffs_base__note__i_o_redirect[] = "@base: I/O redirect"; -const char wuffs_base__note__end_of_data[] = "@base: end of data"; -const char wuffs_base__note__metadata_reported[] = "@base: metadata reported"; -const char wuffs_base__suspension__even_more_information[] = "$base: even more information"; -const char wuffs_base__suspension__mispositioned_read[] = "$base: mispositioned read"; -const char wuffs_base__suspension__mispositioned_write[] = "$base: mispositioned write"; -const char wuffs_base__suspension__short_read[] = "$base: short read"; -const char wuffs_base__suspension__short_write[] = "$base: short write"; -const char wuffs_base__error__bad_i_o_position[] = "#base: bad I/O position"; -const char wuffs_base__error__bad_argument_length_too_short[] = "#base: bad argument (length too short)"; -const char wuffs_base__error__bad_argument[] = "#base: bad argument"; -const char wuffs_base__error__bad_call_sequence[] = "#base: bad call sequence"; -const char wuffs_base__error__bad_data[] = "#base: bad data"; -const char wuffs_base__error__bad_receiver[] = "#base: bad receiver"; -const char wuffs_base__error__bad_restart[] = "#base: bad restart"; -const char wuffs_base__error__bad_sizeof_receiver[] = "#base: bad sizeof receiver"; -const char wuffs_base__error__bad_vtable[] = "#base: bad vtable"; -const char wuffs_base__error__bad_workbuf_length[] = "#base: bad workbuf length"; -const char wuffs_base__error__bad_wuffs_version[] = "#base: bad wuffs version"; -const char wuffs_base__error__cannot_return_a_suspension[] = "#base: cannot return a suspension"; -const char wuffs_base__error__disabled_by_previous_error[] = "#base: disabled by previous error"; -const char wuffs_base__error__initialize_falsely_claimed_already_zeroed[] = "#base: initialize falsely claimed already zeroed"; -const char wuffs_base__error__initialize_not_called[] = "#base: initialize not called"; -const char wuffs_base__error__interleaved_coroutine_calls[] = "#base: interleaved coroutine calls"; -const char wuffs_base__error__no_more_information[] = "#base: no more information"; -const char wuffs_base__error__not_enough_data[] = "#base: not enough data"; -const char wuffs_base__error__out_of_bounds[] = "#base: out of bounds"; -const char wuffs_base__error__unsupported_image_dimension[] = "#base: unsupported image dimension"; -const char wuffs_base__error__unsupported_method[] = "#base: unsupported method"; -const char wuffs_base__error__unsupported_option[] = "#base: unsupported option"; -const char wuffs_base__error__unsupported_pixel_swizzler_option[] = "#base: unsupported pixel swizzler option"; -const char wuffs_base__error__too_much_data[] = "#base: too much data"; - -const char wuffs_base__hasher_u32__vtable_name[] = "{vtable}wuffs_base__hasher_u32"; -const char wuffs_base__hasher_u64__vtable_name[] = "{vtable}wuffs_base__hasher_u64"; -const char wuffs_base__image_decoder__vtable_name[] = "{vtable}wuffs_base__image_decoder"; -const char wuffs_base__io_transformer__vtable_name[] = "{vtable}wuffs_base__io_transformer"; -const char wuffs_base__token_decoder__vtable_name[] = "{vtable}wuffs_base__token_decoder"; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xz__decoder__get_quirk( + const wuffs_xz__decoder* self, + uint32_t a_key); -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__CORE) +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xz__decoder__set_quirk( + wuffs_xz__decoder* self, + uint32_t a_key, + uint64_t a_value); -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_xz__decoder__dst_history_retain_length( + const wuffs_xz__decoder* self); -// ---------------- Interface Definitions. +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_xz__decoder__workbuf_len( + const wuffs_xz__decoder* self); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_base__hasher_u32__checksum_u32( - const wuffs_base__hasher_u32* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xz__decoder__transform_io( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->checksum_u32)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +#ifdef __cplusplus +} // extern "C" +#endif - return 0; -} +// ---------------- Struct Definitions -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_u32__get_quirk( - const wuffs_base__hasher_u32* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - return 0; -} +struct wuffs_xz__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__hasher_u32__set_quirk( - wuffs_base__hasher_u32* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__io_transformer; + wuffs_base__vtable null_vtable; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + uint32_t f_filters[3]; + uint32_t f_num_non_final_filters; + uint8_t f_checksummer; + bool f_ignore_checksum; + bool f_standalone_format; + bool f_lzma_needs_reset; + bool f_block_has_compressed_size; + bool f_block_has_uncompressed_size; + uint8_t f_bcj_undo_index; + uint32_t f_bcj_pos; + uint32_t f_bcj_x86_prev_mask; + uint64_t f_block_compressed_size; + uint64_t f_block_uncompressed_size; + uint64_t f_compressed_size_for_index; + uint32_t f_verification_have_hashed_sizes[2]; + uint32_t f_verification_want_hashed_sizes[2]; + uint64_t f_verification_have_total_sizes[2]; + uint64_t f_verification_want_total_sizes[2]; + uint64_t f_num_actual_blocks; + uint64_t f_num_index_blocks; + uint64_t f_index_block_compressed_size; + uint64_t f_index_block_uncompressed_size; + uint64_t f_backwards_size; + bool f_started_verify_index; + uint16_t f_flags; + + uint8_t (*choosy_apply_non_final_filters)( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + uint32_t p_transform_io; + uint32_t p_do_transform_io; + uint32_t p_decode_block_header_with_padding; + uint32_t p_decode_block_header_sans_padding; + uint32_t p_verify_index; + uint32_t p_verify_footer; + } private_impl; - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + struct { + uint8_t f_filter_data[3][256]; + wuffs_crc32__ieee_hasher f_crc32; + wuffs_crc64__ecma_hasher f_crc64; + wuffs_sha256__hasher f_sha256; + wuffs_lzma__decoder f_lzma; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_base__hasher_u32__update( - wuffs_base__hasher_u32* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } + struct { + uint32_t v_checksum32_have; + uint32_t v_checksum32_want; + wuffs_base__bitvec256 v_checksum256_have; + uint64_t v_compressed_size; + uint64_t v_uncompressed_size; + uint64_t scratch; + } s_do_transform_io; + struct { + uint64_t v_padded_size_have; + uint64_t v_padded_size_want; + } s_decode_block_header_with_padding; + struct { + uint8_t v_flags; + uint8_t v_filter_id; + uint32_t v_shift; + uint32_t v_f; + uint64_t scratch; + } s_decode_block_header_sans_padding; + struct { + uint32_t v_shift; + } s_verify_index; + struct { + uint64_t scratch; + } s_verify_footer; + } private_data; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; - return wuffs_base__make_empty_struct(); -} + // On failure, the alloc_etc functions return nullptr. They don't throw. -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_base__hasher_u32__update_u32( - wuffs_base__hasher_u32* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return 0; - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_xz__decoder__alloc()); } - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update_u32)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; + static inline wuffs_base__io_transformer::unique_ptr + alloc_as__wuffs_base__io_transformer() { + return wuffs_base__io_transformer::unique_ptr( + wuffs_xz__decoder__alloc_as__wuffs_base__io_transformer()); } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - return 0; -} +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_xz__decoder__struct() = delete; + wuffs_xz__decoder__struct(const wuffs_xz__decoder__struct&) = delete; + wuffs_xz__decoder__struct& operator=( + const wuffs_xz__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) -// -------- +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_u64__checksum_u64( - const wuffs_base__hasher_u64* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_xz__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); } - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->checksum_u64)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; + inline wuffs_base__io_transformer* + upcast_as__wuffs_base__io_transformer() { + return (wuffs_base__io_transformer*)this; } - return 0; -} - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_u64__get_quirk( - const wuffs_base__hasher_u64* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_xz__decoder__get_quirk(this, a_key); } - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_xz__decoder__set_quirk(this, a_key, a_value); } - return 0; -} - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__hasher_u64__set_quirk( - wuffs_base__hasher_u64* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_xz__decoder__dst_history_retain_length(this); } - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_xz__decoder__workbuf_len(this); } - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_base__hasher_u64__update( - wuffs_base__hasher_u64* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + inline wuffs_base__status + transform_io( + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + return wuffs_xz__decoder__transform_io(this, a_dst, a_src, a_workbuf); } - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +#endif // __cplusplus +}; // struct wuffs_xz__decoder__struct - return wuffs_base__make_empty_struct(); -} +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_u64__update_u64( - wuffs_base__hasher_u64* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return 0; - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; - } +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XZ) || defined(WUFFS_NONMONOLITHIC) - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update_u64)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +#if defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - return 0; -} +// ---------------- Auxiliary - Base -// -------- +// Auxiliary code is discussed at +// https://github.com/google/wuffs/blob/main/doc/note/auxiliary-code.md -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__decode_frame( - wuffs_base__image_decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +#include - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->decode_frame)(self, a_dst, a_src, a_blend, a_workbuf, a_opts); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +#include +#include - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +namespace wuffs_aux { -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__decode_frame_config( - wuffs_base__image_decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +using IOBuffer = wuffs_base__io_buffer; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->decode_frame_config)(self, a_dst, a_src); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// MemOwner represents ownership of some memory. Dynamically allocated memory +// (e.g. from malloc or new) is typically paired with free or delete, invoked +// when the std::unique_ptr is destroyed. Statically allocated memory might use +// MemOwner(nullptr, &free), even if that statically allocated memory is not +// nullptr, since calling free(nullptr) is a no-op. +using MemOwner = std::unique_ptr; - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +using QuirkKeyValuePair = std::pair; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__decode_image_config( - wuffs_base__image_decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +namespace sync_io { - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->decode_image_config)(self, a_dst, a_src); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// -------- - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +// DynIOBuffer is an IOBuffer that is backed by a dynamically sized byte array. +// It owns that backing array and will free it in its destructor. +// +// The array size can be explicitly extended (by calling the grow method) but, +// unlike a C++ std::vector, there is no implicit extension (e.g. by calling +// std::vector::insert) and its maximum size is capped by the max_incl +// constructor argument. +// +// It contains an IOBuffer-typed field whose reader side provides access to +// previously written bytes and whose writer side provides access to the +// allocated but not-yet-written-to slack space. For Go programmers, this slack +// space is roughly analogous to the s[len(s):cap(s)] space of a slice s. +class DynIOBuffer { + public: + enum GrowResult { + OK = 0, + FailedMaxInclExceeded = 1, + FailedOutOfMemory = 2, + }; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_base__image_decoder__frame_dirty_rect( - const wuffs_base__image_decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } + // m_buf holds the dynamically sized byte array and its read/write indexes: + // - m_buf.meta.wi is roughly analogous to a Go slice's length. + // - m_buf.data.len is roughly analogous to a Go slice's capacity. It is + // also equal to the m_buf.data.ptr malloc/realloc size. + // + // Users should not modify the m_buf.data.ptr or m_buf.data.len fields (as + // they are conceptually private to this class), but they can modify the + // bytes referenced by that pointer-length pair (e.g. compactions). + IOBuffer m_buf; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->frame_dirty_rect)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // m_max_incl is an inclusive upper bound on the backing array size. + const uint64_t m_max_incl; - return wuffs_base__utility__empty_rect_ie_u32(); -} + // Constructor and destructor. + explicit DynIOBuffer(uint64_t max_incl); + ~DynIOBuffer(); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__image_decoder__get_quirk( - const wuffs_base__image_decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + // Drop frees the byte array and resets m_buf. The DynIOBuffer can still be + // used after a drop call. It just restarts from zero. + void drop(); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // grow ensures that the byte array size is at least min_incl and at most + // max_incl. It returns FailedMaxInclExceeded if that would require + // allocating more than max_incl bytes, including the case where (min_incl > + // max_incl). It returns FailedOutOfMemory if memory allocation failed. + GrowResult grow(uint64_t min_incl); - return 0; -} + private: + // Delete the copy and assign constructors. + DynIOBuffer(const DynIOBuffer&) = delete; + DynIOBuffer& operator=(const DynIOBuffer&) = delete; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__image_decoder__history_retain_length( - const wuffs_base__image_decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + static uint64_t round_up(uint64_t min_incl, uint64_t max_incl); +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->history_retain_length)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// -------- - return 0; -} +class Input { + public: + virtual ~Input(); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_base__image_decoder__num_animation_loops( - const wuffs_base__image_decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + virtual IOBuffer* BringsItsOwnIOBuffer(); + virtual std::string CopyIn(IOBuffer* dst) = 0; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->num_animation_loops)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// -------- - return 0; -} +// FileInput is an Input that reads from a file source. +// +// It does not take responsibility for closing the file when done. +class FileInput : public Input { + public: + FileInput(FILE* f); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__image_decoder__num_decoded_frame_configs( - const wuffs_base__image_decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + virtual std::string CopyIn(IOBuffer* dst); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->num_decoded_frame_configs)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + private: + FILE* m_f; - return 0; -} + // Delete the copy and assign constructors. + FileInput(const FileInput&) = delete; + FileInput& operator=(const FileInput&) = delete; +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__image_decoder__num_decoded_frames( - const wuffs_base__image_decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// -------- - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->num_decoded_frames)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// MemoryInput is an Input that reads from an in-memory source. +// +// It does not take responsibility for freeing the memory when done. +class MemoryInput : public Input { + public: + MemoryInput(const char* ptr, size_t len); + MemoryInput(const uint8_t* ptr, size_t len); - return 0; -} + virtual IOBuffer* BringsItsOwnIOBuffer(); + virtual std::string CopyIn(IOBuffer* dst); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__restart_frame( - wuffs_base__image_decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + private: + IOBuffer m_io; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->restart_frame)(self, a_index, a_io_position); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // Delete the copy and assign constructors. + MemoryInput(const MemoryInput&) = delete; + MemoryInput& operator=(const MemoryInput&) = delete; +}; - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +// -------- -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__set_quirk( - wuffs_base__image_decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +} // namespace sync_io - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +} // namespace wuffs_aux - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +// ---------------- Auxiliary - CBOR -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_base__image_decoder__set_report_metadata( - wuffs_base__image_decoder* self, - uint32_t a_fourcc, - bool a_report) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } +namespace wuffs_aux { - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_report_metadata)(self, a_fourcc, a_report); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +struct DecodeCborResult { + DecodeCborResult(std::string&& error_message0, uint64_t cursor_position0); - return wuffs_base__make_empty_struct(); -} + std::string error_message; + uint64_t cursor_position; +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__tell_me_more( - wuffs_base__image_decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +class DecodeCborCallbacks { + public: + virtual ~DecodeCborCallbacks(); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->tell_me_more)(self, a_dst, a_minfo, a_src); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // AppendXxx are called for leaf nodes: literals, numbers, strings, etc. - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + virtual std::string AppendNull() = 0; + virtual std::string AppendUndefined() = 0; + virtual std::string AppendBool(bool val) = 0; + virtual std::string AppendF64(double val) = 0; + virtual std::string AppendI64(int64_t val) = 0; + virtual std::string AppendU64(uint64_t val) = 0; + virtual std::string AppendByteString(std::string&& val) = 0; + virtual std::string AppendTextString(std::string&& val) = 0; + virtual std::string AppendMinus1MinusX(uint64_t val) = 0; + virtual std::string AppendCborSimpleValue(uint8_t val) = 0; + virtual std::string AppendCborTag(uint64_t val) = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_base__image_decoder__workbuf_len( - const wuffs_base__image_decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } + // Push and Pop are called for container nodes: CBOR arrays (lists) and CBOR + // maps (dictionaries). + // + // The flags bits combine exactly one of: + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT + // and exactly one of: + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->workbuf_len)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + virtual std::string Push(uint32_t flags) = 0; + virtual std::string Pop(uint32_t flags) = 0; - return wuffs_base__utility__empty_range_ii_u64(); -} + // Done is always the last Callback method called by DecodeCbor, whether or + // not parsing the input as CBOR encountered an error. Even when successful, + // trailing data may remain in input and buffer. + // + // Do not keep a reference to buffer or buffer.data.ptr after Done returns, + // as DecodeCbor may then de-allocate the backing array. + // + // The default Done implementation is a no-op. + virtual void // + Done(DecodeCborResult& result, sync_io::Input& input, IOBuffer& buffer); +}; -// -------- +// The FooArgBar types add structure to Foo's optional arguments. They wrap +// inner representations for several reasons: +// - It provides a home for the DefaultValue static method, for Foo callers +// that want to override some but not all optional arguments. +// - It provides the "Bar" name at Foo call sites, which can help self- +// document Foo calls with many arguemnts. +// - It provides some type safety against accidentally transposing or omitting +// adjacent fundamentally-numeric-typed optional arguments. -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__io_transformer__get_quirk( - const wuffs_base__io_transformer* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// DecodeCborArgQuirks wraps an optional argument to DecodeCbor. +struct DecodeCborArgQuirks { + explicit DecodeCborArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // DefaultValue returns an empty slice. + static DecodeCborArgQuirks DefaultValue(); - return 0; -} + const QuirkKeyValuePair* ptr; + const size_t len; +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__io_transformer__history_retain_length( - const wuffs_base__io_transformer* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// DecodeCbor calls callbacks based on the CBOR-formatted data in input. +// +// On success, the returned error_message is empty and cursor_position counts +// the number of bytes consumed. On failure, error_message is non-empty and +// cursor_position is the location of the error. That error may be a content +// error (invalid CBOR) or an input error (e.g. network failure). +DecodeCborResult // +DecodeCbor(DecodeCborCallbacks& callbacks, + sync_io::Input& input, + DecodeCborArgQuirks quirks = DecodeCborArgQuirks::DefaultValue()); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->history_retain_length)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +} // namespace wuffs_aux - return 0; -} +// ---------------- Auxiliary - Image -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__io_transformer__set_quirk( - wuffs_base__io_transformer* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +namespace wuffs_aux { - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +struct DecodeImageResult { + DecodeImageResult(MemOwner&& pixbuf_mem_owner0, + wuffs_base__pixel_buffer pixbuf0, + std::string&& error_message0); + DecodeImageResult(std::string&& error_message0); - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + MemOwner pixbuf_mem_owner; + wuffs_base__pixel_buffer pixbuf; + std::string error_message; +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__io_transformer__transform_io( - wuffs_base__io_transformer* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +// DecodeImageCallbacks are the callbacks given to DecodeImage. They are always +// called in this order: +// 1. SelectDecoder +// 2. HandleMetadata +// 3. SelectPixfmt +// 4. AllocPixbuf +// 5. AllocWorkbuf +// 6. Done +// +// It may return early - the third callback might not be invoked if the second +// one fails - but the final callback (Done) is always invoked. +class DecodeImageCallbacks { + public: + // AllocPixbufResult holds a memory allocation (the result of malloc or new, + // a statically allocated pointer, etc), or an error message. The memory is + // de-allocated when mem_owner goes out of scope and is destroyed. + struct AllocPixbufResult { + AllocPixbufResult(MemOwner&& mem_owner0, wuffs_base__pixel_buffer pixbuf0); + AllocPixbufResult(std::string&& error_message0); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->transform_io)(self, a_dst, a_src, a_workbuf); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + MemOwner mem_owner; + wuffs_base__pixel_buffer pixbuf; + std::string error_message; + }; - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + // AllocWorkbufResult holds a memory allocation (the result of malloc or new, + // a statically allocated pointer, etc), or an error message. The memory is + // de-allocated when mem_owner goes out of scope and is destroyed. + struct AllocWorkbufResult { + AllocWorkbufResult(MemOwner&& mem_owner0, wuffs_base__slice_u8 workbuf0); + AllocWorkbufResult(std::string&& error_message0); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_base__io_transformer__workbuf_len( - const wuffs_base__io_transformer* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } + MemOwner mem_owner; + wuffs_base__slice_u8 workbuf; + std::string error_message; + }; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->workbuf_len)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + virtual ~DecodeImageCallbacks(); - return wuffs_base__utility__empty_range_ii_u64(); -} + // SelectDecoder returns the image decoder for the input data's file format. + // Returning a nullptr means failure (DecodeImage_UnsupportedImageFormat). + // + // Common formats will have a FourCC value in the range [1 ..= 0x7FFF_FFFF], + // such as WUFFS_BASE__FOURCC__JPEG. A zero FourCC value means that Wuffs' + // standard library did not recognize the image format but if SelectDecoder + // was overridden, it may examine the input data's starting bytes and still + // provide its own image decoder, e.g. for an exotic image file format that's + // not in Wuffs' standard library. The prefix_etc fields have the same + // meaning as wuffs_base__magic_number_guess_fourcc arguments. SelectDecoder + // implementations should not modify prefix_data's contents. + // + // SelectDecoder might be called more than once, since some image file + // formats can wrap others. For example, a nominal BMP file can actually + // contain a JPEG or a PNG. + // + // The default SelectDecoder accepts the FOURCC codes listed below. For + // modular builds (i.e. when #define'ing WUFFS_CONFIG__MODULES), acceptance + // of the ETC file format is optional (for each value of ETC) and depends on + // the corresponding module to be enabled at compile time (i.e. #define'ing + // WUFFS_CONFIG__MODULE__ETC). + // - WUFFS_BASE__FOURCC__BMP + // - WUFFS_BASE__FOURCC__GIF + // - WUFFS_BASE__FOURCC__JPEG + // - WUFFS_BASE__FOURCC__NIE + // - WUFFS_BASE__FOURCC__NPBM + // - WUFFS_BASE__FOURCC__PNG + // - WUFFS_BASE__FOURCC__QOI + // - WUFFS_BASE__FOURCC__TGA + // - WUFFS_BASE__FOURCC__WBMP + // - WUFFS_BASE__FOURCC__WEBP + virtual wuffs_base__image_decoder::unique_ptr // + SelectDecoder(uint32_t fourcc, + wuffs_base__slice_u8 prefix_data, + bool prefix_closed); -// -------- + // HandleMetadata acknowledges image metadata. minfo.flavor will be one of: + // - WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA_RAW_PASSTHROUGH + // - WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA_PARSED + // If it is ETC__METADATA_RAW_ETC then raw contains the metadata bytes. Those + // bytes should not be retained beyond the the HandleMetadata call. + // + // minfo.metadata__fourcc() will typically match one of the + // DecodeImageArgFlags bits. For example, if (REPORT_METADATA_CHRM | + // REPORT_METADATA_GAMA) was passed to DecodeImage then the metadata FourCC + // will be either WUFFS_BASE__FOURCC__CHRM or WUFFS_BASE__FOURCC__GAMA. + // + // It returns an error message, or an empty string on success. + virtual std::string // + HandleMetadata(const wuffs_base__more_information& minfo, + wuffs_base__slice_u8 raw); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__token_decoder__decode_tokens( - wuffs_base__token_decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + // SelectPixfmt returns the destination pixel format for AllocPixbuf. It + // should return wuffs_base__make_pixel_format(etc) called with one of: + // - WUFFS_BASE__PIXEL_FORMAT__BGR_565 + // - WUFFS_BASE__PIXEL_FORMAT__BGR + // - WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL + // - WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE + // - WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL + // - WUFFS_BASE__PIXEL_FORMAT__RGB + // - WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL + // - WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL + // or return image_config.pixcfg.pixel_format(). The latter means to use the + // image file's natural pixel format. For example, GIF images' natural pixel + // format is an indexed one. + // + // Returning otherwise means failure (DecodeImage_UnsupportedPixelFormat). + // + // The default SelectPixfmt implementation returns + // wuffs_base__make_pixel_format(WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL) which + // is 4 bytes per pixel (8 bits per channel × 4 channels). + virtual wuffs_base__pixel_format // + SelectPixfmt(const wuffs_base__image_config& image_config); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->decode_tokens)(self, a_dst, a_src, a_workbuf); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // AllocPixbuf allocates the pixel buffer. + // + // allow_uninitialized_memory will be true if a valid background_color was + // passed to DecodeImage, since the pixel buffer's contents will be + // overwritten with that color after AllocPixbuf returns. + // + // The default AllocPixbuf implementation allocates either uninitialized or + // zeroed memory. Zeroed memory typically corresponds to filling with opaque + // black or transparent black, depending on the pixel format. + virtual AllocPixbufResult // + AllocPixbuf(const wuffs_base__image_config& image_config, + bool allow_uninitialized_memory); - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + // AllocWorkbuf allocates the work buffer. The allocated buffer's length + // should be at least len_range.min_incl, but larger allocations (up to + // len_range.max_incl) may have better performance (by using more memory). + // + // The default AllocWorkbuf implementation allocates len_range.max_incl bytes + // of either uninitialized or zeroed memory. + virtual AllocWorkbufResult // + AllocWorkbuf(wuffs_base__range_ii_u64 len_range, + bool allow_uninitialized_memory); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__token_decoder__get_quirk( - const wuffs_base__token_decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + // Done is always the last Callback method called by DecodeImage, whether or + // not parsing the input encountered an error. Even when successful, trailing + // data may remain in input and buffer. + // + // The image_decoder is the one returned by SelectDecoder (if SelectDecoder + // was successful), or a no-op unique_ptr otherwise. Like any unique_ptr, + // ownership moves to the Done implementation. + // + // Do not keep a reference to buffer or buffer.data.ptr after Done returns, + // as DecodeImage may then de-allocate the backing array. + // + // The default Done implementation is a no-op, other than running the + // image_decoder unique_ptr destructor. + virtual void // + Done(DecodeImageResult& result, + sync_io::Input& input, + IOBuffer& buffer, + wuffs_base__image_decoder::unique_ptr image_decoder); +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +extern const char DecodeImage_BufferIsTooShort[]; +extern const char DecodeImage_MaxInclDimensionExceeded[]; +extern const char DecodeImage_MaxInclMetadataLengthExceeded[]; +extern const char DecodeImage_OutOfMemory[]; +extern const char DecodeImage_UnexpectedEndOfFile[]; +extern const char DecodeImage_UnsupportedImageFormat[]; +extern const char DecodeImage_UnsupportedMetadata[]; +extern const char DecodeImage_UnsupportedPixelBlend[]; +extern const char DecodeImage_UnsupportedPixelConfiguration[]; +extern const char DecodeImage_UnsupportedPixelFormat[]; - return 0; -} +// The FooArgBar types add structure to Foo's optional arguments. They wrap +// inner representations for several reasons: +// - It provides a home for the DefaultValue static method, for Foo callers +// that want to override some but not all optional arguments. +// - It provides the "Bar" name at Foo call sites, which can help self- +// document Foo calls with many arguemnts. +// - It provides some type safety against accidentally transposing or omitting +// adjacent fundamentally-numeric-typed optional arguments. -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__token_decoder__history_retain_length( - const wuffs_base__token_decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// DecodeImageArgQuirks wraps an optional argument to DecodeImage. +struct DecodeImageArgQuirks { + explicit DecodeImageArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->history_retain_length)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // DefaultValue returns an empty slice. + static DecodeImageArgQuirks DefaultValue(); - return 0; -} + const QuirkKeyValuePair* ptr; + const size_t len; +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__token_decoder__set_quirk( - wuffs_base__token_decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +// DecodeImageArgFlags wraps an optional argument to DecodeImage. +struct DecodeImageArgFlags { + explicit DecodeImageArgFlags(uint64_t repr0); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // DefaultValue returns 0. + static DecodeImageArgFlags DefaultValue(); - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + // TODO: support all of the REPORT_METADATA_ETC flags, not just CHRM, EXIF, + // GAMA, ICCP, KVP, SRGB and XMP. -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_base__token_decoder__workbuf_len( - const wuffs_base__token_decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } + // Background Color. + static constexpr uint64_t REPORT_METADATA_BGCL = 0x0001; + // Primary Chromaticities and White Point. + static constexpr uint64_t REPORT_METADATA_CHRM = 0x0002; + // Exchangeable Image File Format. + static constexpr uint64_t REPORT_METADATA_EXIF = 0x0004; + // Gamma Correction. + static constexpr uint64_t REPORT_METADATA_GAMA = 0x0008; + // International Color Consortium Profile. + static constexpr uint64_t REPORT_METADATA_ICCP = 0x0010; + // Key-Value Pair. + // + // For PNG files, this includes iTXt, tEXt and zTXt chunks. In the + // HandleMetadata callback, the raw argument contains UTF-8 strings. + static constexpr uint64_t REPORT_METADATA_KVP = 0x0020; + // Modification Time. + static constexpr uint64_t REPORT_METADATA_MTIM = 0x0040; + // Offset (2-Dimensional). + static constexpr uint64_t REPORT_METADATA_OFS2 = 0x0080; + // Physical Dimensions. + static constexpr uint64_t REPORT_METADATA_PHYD = 0x0100; + // Standard Red Green Blue (Rendering Intent). + static constexpr uint64_t REPORT_METADATA_SRGB = 0x0200; + // Extensible Metadata Platform. + static constexpr uint64_t REPORT_METADATA_XMP = 0x0400; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->workbuf_len)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + uint64_t repr; +}; - return wuffs_base__utility__empty_range_ii_u64(); -} +// DecodeImageArgPixelBlend wraps an optional argument to DecodeImage. +struct DecodeImageArgPixelBlend { + explicit DecodeImageArgPixelBlend(wuffs_base__pixel_blend repr0); -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) + // DefaultValue returns WUFFS_BASE__PIXEL_BLEND__SRC. + static DecodeImageArgPixelBlend DefaultValue(); -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) + wuffs_base__pixel_blend repr; +}; -// ---------------- IEEE 754 Floating Point +// DecodeImageArgBackgroundColor wraps an optional argument to DecodeImage. +struct DecodeImageArgBackgroundColor { + explicit DecodeImageArgBackgroundColor( + wuffs_base__color_u32_argb_premul repr0); -// The etc__hpd_left_shift and etc__powers_of_5 tables were printed by -// script/print-hpd-left-shift.go. That script has an optional -comments flag, -// whose output is not copied here, which prints further detail. -// -// These tables are used in -// wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits. + // DefaultValue returns 1, an invalid wuffs_base__color_u32_argb_premul. + static DecodeImageArgBackgroundColor DefaultValue(); + + wuffs_base__color_u32_argb_premul repr; +}; + +// DecodeImageArgMaxInclDimension wraps an optional argument to DecodeImage. +struct DecodeImageArgMaxInclDimension { + explicit DecodeImageArgMaxInclDimension(uint32_t repr0); + + // DefaultValue returns 1048575 = 0x000F_FFFF, more than 1 million pixels. + static DecodeImageArgMaxInclDimension DefaultValue(); + + uint32_t repr; +}; + +// DecodeImageArgMaxInclMetadataLength wraps an optional argument to +// DecodeImage. +struct DecodeImageArgMaxInclMetadataLength { + explicit DecodeImageArgMaxInclMetadataLength(uint64_t repr0); + + // DefaultValue returns 16777215 = 0x00FF_FFFF, one less than 16 MiB. + static DecodeImageArgMaxInclMetadataLength DefaultValue(); + + uint64_t repr; +}; -// wuffs_base__private_implementation__hpd_left_shift[i] encodes the number of -// new digits created after multiplying a positive integer by (1 << i): the -// additional length in the decimal representation. For example, shifting "234" -// by 3 (equivalent to multiplying by 8) will produce "1872". Going from a -// 3-length string to a 4-length string means that 1 new digit was added (and -// existing digits may have changed). +// DecodeImage decodes the image data in input. A variety of image file formats +// can be decoded, depending on what callbacks.SelectDecoder returns. // -// Shifting by i can add either N or N-1 new digits, depending on whether the -// original positive integer compares >= or < to the i'th power of 5 (as 10 -// equals 2 * 5). Comparison is lexicographic, not numerical. +// For animated formats, only the first frame is returned, since the API is +// simpler for synchronous I/O and having DecodeImage only return when +// completely done, but rendering animation often involves handling other +// events in between animation frames. To decode multiple frames of animated +// images, or for asynchronous I/O (e.g. when decoding an image streamed over +// the network), use Wuffs' lower level C API instead of its higher level, +// simplified C++ API (the wuffs_aux API). // -// For example, shifting by 4 (i.e. multiplying by 16) can add 1 or 2 new -// digits, depending on a lexicographic comparison to (5 ** 4), i.e. "625": -// - ("1" << 4) is "16", which adds 1 new digit. -// - ("5678" << 4) is "90848", which adds 1 new digit. -// - ("624" << 4) is "9984", which adds 1 new digit. -// - ("62498" << 4) is "999968", which adds 1 new digit. -// - ("625" << 4) is "10000", which adds 2 new digits. -// - ("625001" << 4) is "10000016", which adds 2 new digits. -// - ("7008" << 4) is "112128", which adds 2 new digits. -// - ("99" << 4) is "1584", which adds 2 new digits. +// The DecodeImageResult's fields depend on whether decoding succeeded: +// - On total success, the error_message is empty and pixbuf.pixcfg.is_valid() +// is true. +// - On partial success (e.g. the input file was truncated but we are still +// able to decode some of the pixels), error_message is non-empty but +// pixbuf.pixcfg.is_valid() is still true. It is up to the caller whether to +// accept or reject partial success. +// - On failure, the error_message is non_empty and pixbuf.pixcfg.is_valid() +// is false. // -// Thus, when i is 4, N is 2 and (5 ** i) is "625". This etc__hpd_left_shift -// array encodes this as: -// - etc__hpd_left_shift[4] is 0x1006 = (2 << 11) | 0x0006. -// - etc__hpd_left_shift[5] is 0x1009 = (? << 11) | 0x0009. -// where the ? isn't relevant for i == 4. +// The callbacks allocate the pixel buffer memory and work buffer memory. On +// success, pixel buffer memory ownership is passed to the DecodeImage caller +// as the returned pixbuf_mem_owner. Regardless of success or failure, the work +// buffer memory is deleted. // -// The high 5 bits of etc__hpd_left_shift[i] is N, the higher of the two -// possible number of new digits. The low 11 bits are an offset into the -// etc__powers_of_5 array (of length 0x051C, so offsets fit in 11 bits). When i -// is 4, its offset and the next one is 6 and 9, and etc__powers_of_5[6 .. 9] -// is the string "\x06\x02\x05", so the relevant power of 5 is "625". +// The pixel_blend (one of the constants listed below) determines how to +// composite the decoded image over the pixel buffer's original pixels (as +// returned by callbacks.AllocPixbuf): +// - WUFFS_BASE__PIXEL_BLEND__SRC +// - WUFFS_BASE__PIXEL_BLEND__SRC_OVER // -// Thanks to Ken Thompson for the original idea. -static const uint16_t wuffs_base__private_implementation__hpd_left_shift[65] = { - 0x0000, 0x0800, 0x0801, 0x0803, 0x1006, 0x1009, 0x100D, 0x1812, 0x1817, - 0x181D, 0x2024, 0x202B, 0x2033, 0x203C, 0x2846, 0x2850, 0x285B, 0x3067, - 0x3073, 0x3080, 0x388E, 0x389C, 0x38AB, 0x38BB, 0x40CC, 0x40DD, 0x40EF, - 0x4902, 0x4915, 0x4929, 0x513E, 0x5153, 0x5169, 0x5180, 0x5998, 0x59B0, - 0x59C9, 0x61E3, 0x61FD, 0x6218, 0x6A34, 0x6A50, 0x6A6D, 0x6A8B, 0x72AA, - 0x72C9, 0x72E9, 0x7B0A, 0x7B2B, 0x7B4D, 0x8370, 0x8393, 0x83B7, 0x83DC, - 0x8C02, 0x8C28, 0x8C4F, 0x9477, 0x949F, 0x94C8, 0x9CF2, 0x051C, 0x051C, - 0x051C, 0x051C, -}; - -// wuffs_base__private_implementation__powers_of_5 contains the powers of 5, -// concatenated together: "5", "25", "125", "625", "3125", etc. -static const uint8_t wuffs_base__private_implementation__powers_of_5[0x051C] = { - 5, 2, 5, 1, 2, 5, 6, 2, 5, 3, 1, 2, 5, 1, 5, 6, 2, 5, 7, 8, 1, 2, 5, 3, 9, - 0, 6, 2, 5, 1, 9, 5, 3, 1, 2, 5, 9, 7, 6, 5, 6, 2, 5, 4, 8, 8, 2, 8, 1, 2, - 5, 2, 4, 4, 1, 4, 0, 6, 2, 5, 1, 2, 2, 0, 7, 0, 3, 1, 2, 5, 6, 1, 0, 3, 5, - 1, 5, 6, 2, 5, 3, 0, 5, 1, 7, 5, 7, 8, 1, 2, 5, 1, 5, 2, 5, 8, 7, 8, 9, 0, - 6, 2, 5, 7, 6, 2, 9, 3, 9, 4, 5, 3, 1, 2, 5, 3, 8, 1, 4, 6, 9, 7, 2, 6, 5, - 6, 2, 5, 1, 9, 0, 7, 3, 4, 8, 6, 3, 2, 8, 1, 2, 5, 9, 5, 3, 6, 7, 4, 3, 1, - 6, 4, 0, 6, 2, 5, 4, 7, 6, 8, 3, 7, 1, 5, 8, 2, 0, 3, 1, 2, 5, 2, 3, 8, 4, - 1, 8, 5, 7, 9, 1, 0, 1, 5, 6, 2, 5, 1, 1, 9, 2, 0, 9, 2, 8, 9, 5, 5, 0, 7, - 8, 1, 2, 5, 5, 9, 6, 0, 4, 6, 4, 4, 7, 7, 5, 3, 9, 0, 6, 2, 5, 2, 9, 8, 0, - 2, 3, 2, 2, 3, 8, 7, 6, 9, 5, 3, 1, 2, 5, 1, 4, 9, 0, 1, 1, 6, 1, 1, 9, 3, - 8, 4, 7, 6, 5, 6, 2, 5, 7, 4, 5, 0, 5, 8, 0, 5, 9, 6, 9, 2, 3, 8, 2, 8, 1, - 2, 5, 3, 7, 2, 5, 2, 9, 0, 2, 9, 8, 4, 6, 1, 9, 1, 4, 0, 6, 2, 5, 1, 8, 6, - 2, 6, 4, 5, 1, 4, 9, 2, 3, 0, 9, 5, 7, 0, 3, 1, 2, 5, 9, 3, 1, 3, 2, 2, 5, - 7, 4, 6, 1, 5, 4, 7, 8, 5, 1, 5, 6, 2, 5, 4, 6, 5, 6, 6, 1, 2, 8, 7, 3, 0, - 7, 7, 3, 9, 2, 5, 7, 8, 1, 2, 5, 2, 3, 2, 8, 3, 0, 6, 4, 3, 6, 5, 3, 8, 6, - 9, 6, 2, 8, 9, 0, 6, 2, 5, 1, 1, 6, 4, 1, 5, 3, 2, 1, 8, 2, 6, 9, 3, 4, 8, - 1, 4, 4, 5, 3, 1, 2, 5, 5, 8, 2, 0, 7, 6, 6, 0, 9, 1, 3, 4, 6, 7, 4, 0, 7, - 2, 2, 6, 5, 6, 2, 5, 2, 9, 1, 0, 3, 8, 3, 0, 4, 5, 6, 7, 3, 3, 7, 0, 3, 6, - 1, 3, 2, 8, 1, 2, 5, 1, 4, 5, 5, 1, 9, 1, 5, 2, 2, 8, 3, 6, 6, 8, 5, 1, 8, - 0, 6, 6, 4, 0, 6, 2, 5, 7, 2, 7, 5, 9, 5, 7, 6, 1, 4, 1, 8, 3, 4, 2, 5, 9, - 0, 3, 3, 2, 0, 3, 1, 2, 5, 3, 6, 3, 7, 9, 7, 8, 8, 0, 7, 0, 9, 1, 7, 1, 2, - 9, 5, 1, 6, 6, 0, 1, 5, 6, 2, 5, 1, 8, 1, 8, 9, 8, 9, 4, 0, 3, 5, 4, 5, 8, - 5, 6, 4, 7, 5, 8, 3, 0, 0, 7, 8, 1, 2, 5, 9, 0, 9, 4, 9, 4, 7, 0, 1, 7, 7, - 2, 9, 2, 8, 2, 3, 7, 9, 1, 5, 0, 3, 9, 0, 6, 2, 5, 4, 5, 4, 7, 4, 7, 3, 5, - 0, 8, 8, 6, 4, 6, 4, 1, 1, 8, 9, 5, 7, 5, 1, 9, 5, 3, 1, 2, 5, 2, 2, 7, 3, - 7, 3, 6, 7, 5, 4, 4, 3, 2, 3, 2, 0, 5, 9, 4, 7, 8, 7, 5, 9, 7, 6, 5, 6, 2, - 5, 1, 1, 3, 6, 8, 6, 8, 3, 7, 7, 2, 1, 6, 1, 6, 0, 2, 9, 7, 3, 9, 3, 7, 9, - 8, 8, 2, 8, 1, 2, 5, 5, 6, 8, 4, 3, 4, 1, 8, 8, 6, 0, 8, 0, 8, 0, 1, 4, 8, - 6, 9, 6, 8, 9, 9, 4, 1, 4, 0, 6, 2, 5, 2, 8, 4, 2, 1, 7, 0, 9, 4, 3, 0, 4, - 0, 4, 0, 0, 7, 4, 3, 4, 8, 4, 4, 9, 7, 0, 7, 0, 3, 1, 2, 5, 1, 4, 2, 1, 0, - 8, 5, 4, 7, 1, 5, 2, 0, 2, 0, 0, 3, 7, 1, 7, 4, 2, 2, 4, 8, 5, 3, 5, 1, 5, - 6, 2, 5, 7, 1, 0, 5, 4, 2, 7, 3, 5, 7, 6, 0, 1, 0, 0, 1, 8, 5, 8, 7, 1, 1, - 2, 4, 2, 6, 7, 5, 7, 8, 1, 2, 5, 3, 5, 5, 2, 7, 1, 3, 6, 7, 8, 8, 0, 0, 5, - 0, 0, 9, 2, 9, 3, 5, 5, 6, 2, 1, 3, 3, 7, 8, 9, 0, 6, 2, 5, 1, 7, 7, 6, 3, - 5, 6, 8, 3, 9, 4, 0, 0, 2, 5, 0, 4, 6, 4, 6, 7, 7, 8, 1, 0, 6, 6, 8, 9, 4, - 5, 3, 1, 2, 5, 8, 8, 8, 1, 7, 8, 4, 1, 9, 7, 0, 0, 1, 2, 5, 2, 3, 2, 3, 3, - 8, 9, 0, 5, 3, 3, 4, 4, 7, 2, 6, 5, 6, 2, 5, 4, 4, 4, 0, 8, 9, 2, 0, 9, 8, - 5, 0, 0, 6, 2, 6, 1, 6, 1, 6, 9, 4, 5, 2, 6, 6, 7, 2, 3, 6, 3, 2, 8, 1, 2, - 5, 2, 2, 2, 0, 4, 4, 6, 0, 4, 9, 2, 5, 0, 3, 1, 3, 0, 8, 0, 8, 4, 7, 2, 6, - 3, 3, 3, 6, 1, 8, 1, 6, 4, 0, 6, 2, 5, 1, 1, 1, 0, 2, 2, 3, 0, 2, 4, 6, 2, - 5, 1, 5, 6, 5, 4, 0, 4, 2, 3, 6, 3, 1, 6, 6, 8, 0, 9, 0, 8, 2, 0, 3, 1, 2, - 5, 5, 5, 5, 1, 1, 1, 5, 1, 2, 3, 1, 2, 5, 7, 8, 2, 7, 0, 2, 1, 1, 8, 1, 5, - 8, 3, 4, 0, 4, 5, 4, 1, 0, 1, 5, 6, 2, 5, 2, 7, 7, 5, 5, 5, 7, 5, 6, 1, 5, - 6, 2, 8, 9, 1, 3, 5, 1, 0, 5, 9, 0, 7, 9, 1, 7, 0, 2, 2, 7, 0, 5, 0, 7, 8, - 1, 2, 5, 1, 3, 8, 7, 7, 7, 8, 7, 8, 0, 7, 8, 1, 4, 4, 5, 6, 7, 5, 5, 2, 9, - 5, 3, 9, 5, 8, 5, 1, 1, 3, 5, 2, 5, 3, 9, 0, 6, 2, 5, 6, 9, 3, 8, 8, 9, 3, - 9, 0, 3, 9, 0, 7, 2, 2, 8, 3, 7, 7, 6, 4, 7, 6, 9, 7, 9, 2, 5, 5, 6, 7, 6, - 2, 6, 9, 5, 3, 1, 2, 5, 3, 4, 6, 9, 4, 4, 6, 9, 5, 1, 9, 5, 3, 6, 1, 4, 1, - 8, 8, 8, 2, 3, 8, 4, 8, 9, 6, 2, 7, 8, 3, 8, 1, 3, 4, 7, 6, 5, 6, 2, 5, 1, - 7, 3, 4, 7, 2, 3, 4, 7, 5, 9, 7, 6, 8, 0, 7, 0, 9, 4, 4, 1, 1, 9, 2, 4, 4, - 8, 1, 3, 9, 1, 9, 0, 6, 7, 3, 8, 2, 8, 1, 2, 5, 8, 6, 7, 3, 6, 1, 7, 3, 7, - 9, 8, 8, 4, 0, 3, 5, 4, 7, 2, 0, 5, 9, 6, 2, 2, 4, 0, 6, 9, 5, 9, 5, 3, 3, - 6, 9, 1, 4, 0, 6, 2, 5, -}; +// The background_color is used to fill the pixel buffer after +// callbacks.AllocPixbuf returns, if it is valid in the +// wuffs_base__color_u32_argb_premul__is_valid sense. The default value, +// 0x0000_0001, is not valid since its Blue channel value (0x01) is greater +// than its Alpha channel value (0x00). A valid background_color will typically +// be overwritten when pixel_blend is WUFFS_BASE__PIXEL_BLEND__SRC, but might +// still be visible on partial (not total) success or when pixel_blend is +// WUFFS_BASE__PIXEL_BLEND__SRC_OVER and the decoded image is not fully opaque. +// +// Decoding fails (with DecodeImage_MaxInclDimensionExceeded) if the image's +// width or height is greater than max_incl_dimension or if any opted-in (via +// flags bits) metadata is longer than max_incl_metadata_length. +DecodeImageResult // +DecodeImage(DecodeImageCallbacks& callbacks, + sync_io::Input& input, + DecodeImageArgQuirks quirks = DecodeImageArgQuirks::DefaultValue(), + DecodeImageArgFlags flags = DecodeImageArgFlags::DefaultValue(), + DecodeImageArgPixelBlend pixel_blend = + DecodeImageArgPixelBlend::DefaultValue(), + DecodeImageArgBackgroundColor background_color = + DecodeImageArgBackgroundColor::DefaultValue(), + DecodeImageArgMaxInclDimension max_incl_dimension = + DecodeImageArgMaxInclDimension::DefaultValue(), + DecodeImageArgMaxInclMetadataLength max_incl_metadata_length = + DecodeImageArgMaxInclMetadataLength::DefaultValue()); -// -------- +} // namespace wuffs_aux -// wuffs_base__private_implementation__powers_of_10 contains truncated -// approximations to the powers of 10, ranging from 1e-307 to 1e+288 inclusive, -// as 596 pairs of uint64_t values (a 128-bit mantissa). -// -// There's also an implicit third column (implied by a linear formula involving -// the base-10 exponent) that is the base-2 exponent, biased by a magic -// constant. That constant (1214 or 0x04BE) equals 1023 + 191. 1023 is the bias -// for IEEE 754 double-precision floating point. 191 is ((3 * 64) - 1) and -// wuffs_base__private_implementation__parse_number_f64_eisel_lemire works with -// multiples-of-64-bit mantissas. -// -// For example, the third row holds the approximation to 1e-305: -// 0xE0B62E29_29ABA83C_331ACDAB_FE94DE87 * (2 ** (0x0049 - 0x04BE)) -// -// Similarly, 1e+4 is approximated by: -// 0x9C400000_00000000_00000000_00000000 * (2 ** (0x044C - 0x04BE)) -// -// Similarly, 1e+68 is approximated by: -// 0xED63A231_D4C4FB27_4CA7AAA8_63EE4BDD * (2 ** (0x0520 - 0x04BE)) -// -// This table was generated by by script/print-mpb-powers-of-10.go -static const uint64_t wuffs_base__private_implementation__powers_of_10[596][2] = - { - {0xA5D3B6D479F8E056, 0x8FD0C16206306BAB}, // 1e-307 - {0x8F48A4899877186C, 0xB3C4F1BA87BC8696}, // 1e-306 - {0x331ACDABFE94DE87, 0xE0B62E2929ABA83C}, // 1e-305 - {0x9FF0C08B7F1D0B14, 0x8C71DCD9BA0B4925}, // 1e-304 - {0x07ECF0AE5EE44DD9, 0xAF8E5410288E1B6F}, // 1e-303 - {0xC9E82CD9F69D6150, 0xDB71E91432B1A24A}, // 1e-302 - {0xBE311C083A225CD2, 0x892731AC9FAF056E}, // 1e-301 - {0x6DBD630A48AAF406, 0xAB70FE17C79AC6CA}, // 1e-300 - {0x092CBBCCDAD5B108, 0xD64D3D9DB981787D}, // 1e-299 - {0x25BBF56008C58EA5, 0x85F0468293F0EB4E}, // 1e-298 - {0xAF2AF2B80AF6F24E, 0xA76C582338ED2621}, // 1e-297 - {0x1AF5AF660DB4AEE1, 0xD1476E2C07286FAA}, // 1e-296 - {0x50D98D9FC890ED4D, 0x82CCA4DB847945CA}, // 1e-295 - {0xE50FF107BAB528A0, 0xA37FCE126597973C}, // 1e-294 - {0x1E53ED49A96272C8, 0xCC5FC196FEFD7D0C}, // 1e-293 - {0x25E8E89C13BB0F7A, 0xFF77B1FCBEBCDC4F}, // 1e-292 - {0x77B191618C54E9AC, 0x9FAACF3DF73609B1}, // 1e-291 - {0xD59DF5B9EF6A2417, 0xC795830D75038C1D}, // 1e-290 - {0x4B0573286B44AD1D, 0xF97AE3D0D2446F25}, // 1e-289 - {0x4EE367F9430AEC32, 0x9BECCE62836AC577}, // 1e-288 - {0x229C41F793CDA73F, 0xC2E801FB244576D5}, // 1e-287 - {0x6B43527578C1110F, 0xF3A20279ED56D48A}, // 1e-286 - {0x830A13896B78AAA9, 0x9845418C345644D6}, // 1e-285 - {0x23CC986BC656D553, 0xBE5691EF416BD60C}, // 1e-284 - {0x2CBFBE86B7EC8AA8, 0xEDEC366B11C6CB8F}, // 1e-283 - {0x7BF7D71432F3D6A9, 0x94B3A202EB1C3F39}, // 1e-282 - {0xDAF5CCD93FB0CC53, 0xB9E08A83A5E34F07}, // 1e-281 - {0xD1B3400F8F9CFF68, 0xE858AD248F5C22C9}, // 1e-280 - {0x23100809B9C21FA1, 0x91376C36D99995BE}, // 1e-279 - {0xABD40A0C2832A78A, 0xB58547448FFFFB2D}, // 1e-278 - {0x16C90C8F323F516C, 0xE2E69915B3FFF9F9}, // 1e-277 - {0xAE3DA7D97F6792E3, 0x8DD01FAD907FFC3B}, // 1e-276 - {0x99CD11CFDF41779C, 0xB1442798F49FFB4A}, // 1e-275 - {0x40405643D711D583, 0xDD95317F31C7FA1D}, // 1e-274 - {0x482835EA666B2572, 0x8A7D3EEF7F1CFC52}, // 1e-273 - {0xDA3243650005EECF, 0xAD1C8EAB5EE43B66}, // 1e-272 - {0x90BED43E40076A82, 0xD863B256369D4A40}, // 1e-271 - {0x5A7744A6E804A291, 0x873E4F75E2224E68}, // 1e-270 - {0x711515D0A205CB36, 0xA90DE3535AAAE202}, // 1e-269 - {0x0D5A5B44CA873E03, 0xD3515C2831559A83}, // 1e-268 - {0xE858790AFE9486C2, 0x8412D9991ED58091}, // 1e-267 - {0x626E974DBE39A872, 0xA5178FFF668AE0B6}, // 1e-266 - {0xFB0A3D212DC8128F, 0xCE5D73FF402D98E3}, // 1e-265 - {0x7CE66634BC9D0B99, 0x80FA687F881C7F8E}, // 1e-264 - {0x1C1FFFC1EBC44E80, 0xA139029F6A239F72}, // 1e-263 - {0xA327FFB266B56220, 0xC987434744AC874E}, // 1e-262 - {0x4BF1FF9F0062BAA8, 0xFBE9141915D7A922}, // 1e-261 - {0x6F773FC3603DB4A9, 0x9D71AC8FADA6C9B5}, // 1e-260 - {0xCB550FB4384D21D3, 0xC4CE17B399107C22}, // 1e-259 - {0x7E2A53A146606A48, 0xF6019DA07F549B2B}, // 1e-258 - {0x2EDA7444CBFC426D, 0x99C102844F94E0FB}, // 1e-257 - {0xFA911155FEFB5308, 0xC0314325637A1939}, // 1e-256 - {0x793555AB7EBA27CA, 0xF03D93EEBC589F88}, // 1e-255 - {0x4BC1558B2F3458DE, 0x96267C7535B763B5}, // 1e-254 - {0x9EB1AAEDFB016F16, 0xBBB01B9283253CA2}, // 1e-253 - {0x465E15A979C1CADC, 0xEA9C227723EE8BCB}, // 1e-252 - {0x0BFACD89EC191EC9, 0x92A1958A7675175F}, // 1e-251 - {0xCEF980EC671F667B, 0xB749FAED14125D36}, // 1e-250 - {0x82B7E12780E7401A, 0xE51C79A85916F484}, // 1e-249 - {0xD1B2ECB8B0908810, 0x8F31CC0937AE58D2}, // 1e-248 - {0x861FA7E6DCB4AA15, 0xB2FE3F0B8599EF07}, // 1e-247 - {0x67A791E093E1D49A, 0xDFBDCECE67006AC9}, // 1e-246 - {0xE0C8BB2C5C6D24E0, 0x8BD6A141006042BD}, // 1e-245 - {0x58FAE9F773886E18, 0xAECC49914078536D}, // 1e-244 - {0xAF39A475506A899E, 0xDA7F5BF590966848}, // 1e-243 - {0x6D8406C952429603, 0x888F99797A5E012D}, // 1e-242 - {0xC8E5087BA6D33B83, 0xAAB37FD7D8F58178}, // 1e-241 - {0xFB1E4A9A90880A64, 0xD5605FCDCF32E1D6}, // 1e-240 - {0x5CF2EEA09A55067F, 0x855C3BE0A17FCD26}, // 1e-239 - {0xF42FAA48C0EA481E, 0xA6B34AD8C9DFC06F}, // 1e-238 - {0xF13B94DAF124DA26, 0xD0601D8EFC57B08B}, // 1e-237 - {0x76C53D08D6B70858, 0x823C12795DB6CE57}, // 1e-236 - {0x54768C4B0C64CA6E, 0xA2CB1717B52481ED}, // 1e-235 - {0xA9942F5DCF7DFD09, 0xCB7DDCDDA26DA268}, // 1e-234 - {0xD3F93B35435D7C4C, 0xFE5D54150B090B02}, // 1e-233 - {0xC47BC5014A1A6DAF, 0x9EFA548D26E5A6E1}, // 1e-232 - {0x359AB6419CA1091B, 0xC6B8E9B0709F109A}, // 1e-231 - {0xC30163D203C94B62, 0xF867241C8CC6D4C0}, // 1e-230 - {0x79E0DE63425DCF1D, 0x9B407691D7FC44F8}, // 1e-229 - {0x985915FC12F542E4, 0xC21094364DFB5636}, // 1e-228 - {0x3E6F5B7B17B2939D, 0xF294B943E17A2BC4}, // 1e-227 - {0xA705992CEECF9C42, 0x979CF3CA6CEC5B5A}, // 1e-226 - {0x50C6FF782A838353, 0xBD8430BD08277231}, // 1e-225 - {0xA4F8BF5635246428, 0xECE53CEC4A314EBD}, // 1e-224 - {0x871B7795E136BE99, 0x940F4613AE5ED136}, // 1e-223 - {0x28E2557B59846E3F, 0xB913179899F68584}, // 1e-222 - {0x331AEADA2FE589CF, 0xE757DD7EC07426E5}, // 1e-221 - {0x3FF0D2C85DEF7621, 0x9096EA6F3848984F}, // 1e-220 - {0x0FED077A756B53A9, 0xB4BCA50B065ABE63}, // 1e-219 - {0xD3E8495912C62894, 0xE1EBCE4DC7F16DFB}, // 1e-218 - {0x64712DD7ABBBD95C, 0x8D3360F09CF6E4BD}, // 1e-217 - {0xBD8D794D96AACFB3, 0xB080392CC4349DEC}, // 1e-216 - {0xECF0D7A0FC5583A0, 0xDCA04777F541C567}, // 1e-215 - {0xF41686C49DB57244, 0x89E42CAAF9491B60}, // 1e-214 - {0x311C2875C522CED5, 0xAC5D37D5B79B6239}, // 1e-213 - {0x7D633293366B828B, 0xD77485CB25823AC7}, // 1e-212 - {0xAE5DFF9C02033197, 0x86A8D39EF77164BC}, // 1e-211 - {0xD9F57F830283FDFC, 0xA8530886B54DBDEB}, // 1e-210 - {0xD072DF63C324FD7B, 0xD267CAA862A12D66}, // 1e-209 - {0x4247CB9E59F71E6D, 0x8380DEA93DA4BC60}, // 1e-208 - {0x52D9BE85F074E608, 0xA46116538D0DEB78}, // 1e-207 - {0x67902E276C921F8B, 0xCD795BE870516656}, // 1e-206 - {0x00BA1CD8A3DB53B6, 0x806BD9714632DFF6}, // 1e-205 - {0x80E8A40ECCD228A4, 0xA086CFCD97BF97F3}, // 1e-204 - {0x6122CD128006B2CD, 0xC8A883C0FDAF7DF0}, // 1e-203 - {0x796B805720085F81, 0xFAD2A4B13D1B5D6C}, // 1e-202 - {0xCBE3303674053BB0, 0x9CC3A6EEC6311A63}, // 1e-201 - {0xBEDBFC4411068A9C, 0xC3F490AA77BD60FC}, // 1e-200 - {0xEE92FB5515482D44, 0xF4F1B4D515ACB93B}, // 1e-199 - {0x751BDD152D4D1C4A, 0x991711052D8BF3C5}, // 1e-198 - {0xD262D45A78A0635D, 0xBF5CD54678EEF0B6}, // 1e-197 - {0x86FB897116C87C34, 0xEF340A98172AACE4}, // 1e-196 - {0xD45D35E6AE3D4DA0, 0x9580869F0E7AAC0E}, // 1e-195 - {0x8974836059CCA109, 0xBAE0A846D2195712}, // 1e-194 - {0x2BD1A438703FC94B, 0xE998D258869FACD7}, // 1e-193 - {0x7B6306A34627DDCF, 0x91FF83775423CC06}, // 1e-192 - {0x1A3BC84C17B1D542, 0xB67F6455292CBF08}, // 1e-191 - {0x20CABA5F1D9E4A93, 0xE41F3D6A7377EECA}, // 1e-190 - {0x547EB47B7282EE9C, 0x8E938662882AF53E}, // 1e-189 - {0xE99E619A4F23AA43, 0xB23867FB2A35B28D}, // 1e-188 - {0x6405FA00E2EC94D4, 0xDEC681F9F4C31F31}, // 1e-187 - {0xDE83BC408DD3DD04, 0x8B3C113C38F9F37E}, // 1e-186 - {0x9624AB50B148D445, 0xAE0B158B4738705E}, // 1e-185 - {0x3BADD624DD9B0957, 0xD98DDAEE19068C76}, // 1e-184 - {0xE54CA5D70A80E5D6, 0x87F8A8D4CFA417C9}, // 1e-183 - {0x5E9FCF4CCD211F4C, 0xA9F6D30A038D1DBC}, // 1e-182 - {0x7647C3200069671F, 0xD47487CC8470652B}, // 1e-181 - {0x29ECD9F40041E073, 0x84C8D4DFD2C63F3B}, // 1e-180 - {0xF468107100525890, 0xA5FB0A17C777CF09}, // 1e-179 - {0x7182148D4066EEB4, 0xCF79CC9DB955C2CC}, // 1e-178 - {0xC6F14CD848405530, 0x81AC1FE293D599BF}, // 1e-177 - {0xB8ADA00E5A506A7C, 0xA21727DB38CB002F}, // 1e-176 - {0xA6D90811F0E4851C, 0xCA9CF1D206FDC03B}, // 1e-175 - {0x908F4A166D1DA663, 0xFD442E4688BD304A}, // 1e-174 - {0x9A598E4E043287FE, 0x9E4A9CEC15763E2E}, // 1e-173 - {0x40EFF1E1853F29FD, 0xC5DD44271AD3CDBA}, // 1e-172 - {0xD12BEE59E68EF47C, 0xF7549530E188C128}, // 1e-171 - {0x82BB74F8301958CE, 0x9A94DD3E8CF578B9}, // 1e-170 - {0xE36A52363C1FAF01, 0xC13A148E3032D6E7}, // 1e-169 - {0xDC44E6C3CB279AC1, 0xF18899B1BC3F8CA1}, // 1e-168 - {0x29AB103A5EF8C0B9, 0x96F5600F15A7B7E5}, // 1e-167 - {0x7415D448F6B6F0E7, 0xBCB2B812DB11A5DE}, // 1e-166 - {0x111B495B3464AD21, 0xEBDF661791D60F56}, // 1e-165 - {0xCAB10DD900BEEC34, 0x936B9FCEBB25C995}, // 1e-164 - {0x3D5D514F40EEA742, 0xB84687C269EF3BFB}, // 1e-163 - {0x0CB4A5A3112A5112, 0xE65829B3046B0AFA}, // 1e-162 - {0x47F0E785EABA72AB, 0x8FF71A0FE2C2E6DC}, // 1e-161 - {0x59ED216765690F56, 0xB3F4E093DB73A093}, // 1e-160 - {0x306869C13EC3532C, 0xE0F218B8D25088B8}, // 1e-159 - {0x1E414218C73A13FB, 0x8C974F7383725573}, // 1e-158 - {0xE5D1929EF90898FA, 0xAFBD2350644EEACF}, // 1e-157 - {0xDF45F746B74ABF39, 0xDBAC6C247D62A583}, // 1e-156 - {0x6B8BBA8C328EB783, 0x894BC396CE5DA772}, // 1e-155 - {0x066EA92F3F326564, 0xAB9EB47C81F5114F}, // 1e-154 - {0xC80A537B0EFEFEBD, 0xD686619BA27255A2}, // 1e-153 - {0xBD06742CE95F5F36, 0x8613FD0145877585}, // 1e-152 - {0x2C48113823B73704, 0xA798FC4196E952E7}, // 1e-151 - {0xF75A15862CA504C5, 0xD17F3B51FCA3A7A0}, // 1e-150 - {0x9A984D73DBE722FB, 0x82EF85133DE648C4}, // 1e-149 - {0xC13E60D0D2E0EBBA, 0xA3AB66580D5FDAF5}, // 1e-148 - {0x318DF905079926A8, 0xCC963FEE10B7D1B3}, // 1e-147 - {0xFDF17746497F7052, 0xFFBBCFE994E5C61F}, // 1e-146 - {0xFEB6EA8BEDEFA633, 0x9FD561F1FD0F9BD3}, // 1e-145 - {0xFE64A52EE96B8FC0, 0xC7CABA6E7C5382C8}, // 1e-144 - {0x3DFDCE7AA3C673B0, 0xF9BD690A1B68637B}, // 1e-143 - {0x06BEA10CA65C084E, 0x9C1661A651213E2D}, // 1e-142 - {0x486E494FCFF30A62, 0xC31BFA0FE5698DB8}, // 1e-141 - {0x5A89DBA3C3EFCCFA, 0xF3E2F893DEC3F126}, // 1e-140 - {0xF89629465A75E01C, 0x986DDB5C6B3A76B7}, // 1e-139 - {0xF6BBB397F1135823, 0xBE89523386091465}, // 1e-138 - {0x746AA07DED582E2C, 0xEE2BA6C0678B597F}, // 1e-137 - {0xA8C2A44EB4571CDC, 0x94DB483840B717EF}, // 1e-136 - {0x92F34D62616CE413, 0xBA121A4650E4DDEB}, // 1e-135 - {0x77B020BAF9C81D17, 0xE896A0D7E51E1566}, // 1e-134 - {0x0ACE1474DC1D122E, 0x915E2486EF32CD60}, // 1e-133 - {0x0D819992132456BA, 0xB5B5ADA8AAFF80B8}, // 1e-132 - {0x10E1FFF697ED6C69, 0xE3231912D5BF60E6}, // 1e-131 - {0xCA8D3FFA1EF463C1, 0x8DF5EFABC5979C8F}, // 1e-130 - {0xBD308FF8A6B17CB2, 0xB1736B96B6FD83B3}, // 1e-129 - {0xAC7CB3F6D05DDBDE, 0xDDD0467C64BCE4A0}, // 1e-128 - {0x6BCDF07A423AA96B, 0x8AA22C0DBEF60EE4}, // 1e-127 - {0x86C16C98D2C953C6, 0xAD4AB7112EB3929D}, // 1e-126 - {0xE871C7BF077BA8B7, 0xD89D64D57A607744}, // 1e-125 - {0x11471CD764AD4972, 0x87625F056C7C4A8B}, // 1e-124 - {0xD598E40D3DD89BCF, 0xA93AF6C6C79B5D2D}, // 1e-123 - {0x4AFF1D108D4EC2C3, 0xD389B47879823479}, // 1e-122 - {0xCEDF722A585139BA, 0x843610CB4BF160CB}, // 1e-121 - {0xC2974EB4EE658828, 0xA54394FE1EEDB8FE}, // 1e-120 - {0x733D226229FEEA32, 0xCE947A3DA6A9273E}, // 1e-119 - {0x0806357D5A3F525F, 0x811CCC668829B887}, // 1e-118 - {0xCA07C2DCB0CF26F7, 0xA163FF802A3426A8}, // 1e-117 - {0xFC89B393DD02F0B5, 0xC9BCFF6034C13052}, // 1e-116 - {0xBBAC2078D443ACE2, 0xFC2C3F3841F17C67}, // 1e-115 - {0xD54B944B84AA4C0D, 0x9D9BA7832936EDC0}, // 1e-114 - {0x0A9E795E65D4DF11, 0xC5029163F384A931}, // 1e-113 - {0x4D4617B5FF4A16D5, 0xF64335BCF065D37D}, // 1e-112 - {0x504BCED1BF8E4E45, 0x99EA0196163FA42E}, // 1e-111 - {0xE45EC2862F71E1D6, 0xC06481FB9BCF8D39}, // 1e-110 - {0x5D767327BB4E5A4C, 0xF07DA27A82C37088}, // 1e-109 - {0x3A6A07F8D510F86F, 0x964E858C91BA2655}, // 1e-108 - {0x890489F70A55368B, 0xBBE226EFB628AFEA}, // 1e-107 - {0x2B45AC74CCEA842E, 0xEADAB0ABA3B2DBE5}, // 1e-106 - {0x3B0B8BC90012929D, 0x92C8AE6B464FC96F}, // 1e-105 - {0x09CE6EBB40173744, 0xB77ADA0617E3BBCB}, // 1e-104 - {0xCC420A6A101D0515, 0xE55990879DDCAABD}, // 1e-103 - {0x9FA946824A12232D, 0x8F57FA54C2A9EAB6}, // 1e-102 - {0x47939822DC96ABF9, 0xB32DF8E9F3546564}, // 1e-101 - {0x59787E2B93BC56F7, 0xDFF9772470297EBD}, // 1e-100 - {0x57EB4EDB3C55B65A, 0x8BFBEA76C619EF36}, // 1e-99 - {0xEDE622920B6B23F1, 0xAEFAE51477A06B03}, // 1e-98 - {0xE95FAB368E45ECED, 0xDAB99E59958885C4}, // 1e-97 - {0x11DBCB0218EBB414, 0x88B402F7FD75539B}, // 1e-96 - {0xD652BDC29F26A119, 0xAAE103B5FCD2A881}, // 1e-95 - {0x4BE76D3346F0495F, 0xD59944A37C0752A2}, // 1e-94 - {0x6F70A4400C562DDB, 0x857FCAE62D8493A5}, // 1e-93 - {0xCB4CCD500F6BB952, 0xA6DFBD9FB8E5B88E}, // 1e-92 - {0x7E2000A41346A7A7, 0xD097AD07A71F26B2}, // 1e-91 - {0x8ED400668C0C28C8, 0x825ECC24C873782F}, // 1e-90 - {0x728900802F0F32FA, 0xA2F67F2DFA90563B}, // 1e-89 - {0x4F2B40A03AD2FFB9, 0xCBB41EF979346BCA}, // 1e-88 - {0xE2F610C84987BFA8, 0xFEA126B7D78186BC}, // 1e-87 - {0x0DD9CA7D2DF4D7C9, 0x9F24B832E6B0F436}, // 1e-86 - {0x91503D1C79720DBB, 0xC6EDE63FA05D3143}, // 1e-85 - {0x75A44C6397CE912A, 0xF8A95FCF88747D94}, // 1e-84 - {0xC986AFBE3EE11ABA, 0x9B69DBE1B548CE7C}, // 1e-83 - {0xFBE85BADCE996168, 0xC24452DA229B021B}, // 1e-82 - {0xFAE27299423FB9C3, 0xF2D56790AB41C2A2}, // 1e-81 - {0xDCCD879FC967D41A, 0x97C560BA6B0919A5}, // 1e-80 - {0x5400E987BBC1C920, 0xBDB6B8E905CB600F}, // 1e-79 - {0x290123E9AAB23B68, 0xED246723473E3813}, // 1e-78 - {0xF9A0B6720AAF6521, 0x9436C0760C86E30B}, // 1e-77 - {0xF808E40E8D5B3E69, 0xB94470938FA89BCE}, // 1e-76 - {0xB60B1D1230B20E04, 0xE7958CB87392C2C2}, // 1e-75 - {0xB1C6F22B5E6F48C2, 0x90BD77F3483BB9B9}, // 1e-74 - {0x1E38AEB6360B1AF3, 0xB4ECD5F01A4AA828}, // 1e-73 - {0x25C6DA63C38DE1B0, 0xE2280B6C20DD5232}, // 1e-72 - {0x579C487E5A38AD0E, 0x8D590723948A535F}, // 1e-71 - {0x2D835A9DF0C6D851, 0xB0AF48EC79ACE837}, // 1e-70 - {0xF8E431456CF88E65, 0xDCDB1B2798182244}, // 1e-69 - {0x1B8E9ECB641B58FF, 0x8A08F0F8BF0F156B}, // 1e-68 - {0xE272467E3D222F3F, 0xAC8B2D36EED2DAC5}, // 1e-67 - {0x5B0ED81DCC6ABB0F, 0xD7ADF884AA879177}, // 1e-66 - {0x98E947129FC2B4E9, 0x86CCBB52EA94BAEA}, // 1e-65 - {0x3F2398D747B36224, 0xA87FEA27A539E9A5}, // 1e-64 - {0x8EEC7F0D19A03AAD, 0xD29FE4B18E88640E}, // 1e-63 - {0x1953CF68300424AC, 0x83A3EEEEF9153E89}, // 1e-62 - {0x5FA8C3423C052DD7, 0xA48CEAAAB75A8E2B}, // 1e-61 - {0x3792F412CB06794D, 0xCDB02555653131B6}, // 1e-60 - {0xE2BBD88BBEE40BD0, 0x808E17555F3EBF11}, // 1e-59 - {0x5B6ACEAEAE9D0EC4, 0xA0B19D2AB70E6ED6}, // 1e-58 - {0xF245825A5A445275, 0xC8DE047564D20A8B}, // 1e-57 - {0xEED6E2F0F0D56712, 0xFB158592BE068D2E}, // 1e-56 - {0x55464DD69685606B, 0x9CED737BB6C4183D}, // 1e-55 - {0xAA97E14C3C26B886, 0xC428D05AA4751E4C}, // 1e-54 - {0xD53DD99F4B3066A8, 0xF53304714D9265DF}, // 1e-53 - {0xE546A8038EFE4029, 0x993FE2C6D07B7FAB}, // 1e-52 - {0xDE98520472BDD033, 0xBF8FDB78849A5F96}, // 1e-51 - {0x963E66858F6D4440, 0xEF73D256A5C0F77C}, // 1e-50 - {0xDDE7001379A44AA8, 0x95A8637627989AAD}, // 1e-49 - {0x5560C018580D5D52, 0xBB127C53B17EC159}, // 1e-48 - {0xAAB8F01E6E10B4A6, 0xE9D71B689DDE71AF}, // 1e-47 - {0xCAB3961304CA70E8, 0x9226712162AB070D}, // 1e-46 - {0x3D607B97C5FD0D22, 0xB6B00D69BB55C8D1}, // 1e-45 - {0x8CB89A7DB77C506A, 0xE45C10C42A2B3B05}, // 1e-44 - {0x77F3608E92ADB242, 0x8EB98A7A9A5B04E3}, // 1e-43 - {0x55F038B237591ED3, 0xB267ED1940F1C61C}, // 1e-42 - {0x6B6C46DEC52F6688, 0xDF01E85F912E37A3}, // 1e-41 - {0x2323AC4B3B3DA015, 0x8B61313BBABCE2C6}, // 1e-40 - {0xABEC975E0A0D081A, 0xAE397D8AA96C1B77}, // 1e-39 - {0x96E7BD358C904A21, 0xD9C7DCED53C72255}, // 1e-38 - {0x7E50D64177DA2E54, 0x881CEA14545C7575}, // 1e-37 - {0xDDE50BD1D5D0B9E9, 0xAA242499697392D2}, // 1e-36 - {0x955E4EC64B44E864, 0xD4AD2DBFC3D07787}, // 1e-35 - {0xBD5AF13BEF0B113E, 0x84EC3C97DA624AB4}, // 1e-34 - {0xECB1AD8AEACDD58E, 0xA6274BBDD0FADD61}, // 1e-33 - {0x67DE18EDA5814AF2, 0xCFB11EAD453994BA}, // 1e-32 - {0x80EACF948770CED7, 0x81CEB32C4B43FCF4}, // 1e-31 - {0xA1258379A94D028D, 0xA2425FF75E14FC31}, // 1e-30 - {0x096EE45813A04330, 0xCAD2F7F5359A3B3E}, // 1e-29 - {0x8BCA9D6E188853FC, 0xFD87B5F28300CA0D}, // 1e-28 - {0x775EA264CF55347D, 0x9E74D1B791E07E48}, // 1e-27 - {0x95364AFE032A819D, 0xC612062576589DDA}, // 1e-26 - {0x3A83DDBD83F52204, 0xF79687AED3EEC551}, // 1e-25 - {0xC4926A9672793542, 0x9ABE14CD44753B52}, // 1e-24 - {0x75B7053C0F178293, 0xC16D9A0095928A27}, // 1e-23 - {0x5324C68B12DD6338, 0xF1C90080BAF72CB1}, // 1e-22 - {0xD3F6FC16EBCA5E03, 0x971DA05074DA7BEE}, // 1e-21 - {0x88F4BB1CA6BCF584, 0xBCE5086492111AEA}, // 1e-20 - {0x2B31E9E3D06C32E5, 0xEC1E4A7DB69561A5}, // 1e-19 - {0x3AFF322E62439FCF, 0x9392EE8E921D5D07}, // 1e-18 - {0x09BEFEB9FAD487C2, 0xB877AA3236A4B449}, // 1e-17 - {0x4C2EBE687989A9B3, 0xE69594BEC44DE15B}, // 1e-16 - {0x0F9D37014BF60A10, 0x901D7CF73AB0ACD9}, // 1e-15 - {0x538484C19EF38C94, 0xB424DC35095CD80F}, // 1e-14 - {0x2865A5F206B06FB9, 0xE12E13424BB40E13}, // 1e-13 - {0xF93F87B7442E45D3, 0x8CBCCC096F5088CB}, // 1e-12 - {0xF78F69A51539D748, 0xAFEBFF0BCB24AAFE}, // 1e-11 - {0xB573440E5A884D1B, 0xDBE6FECEBDEDD5BE}, // 1e-10 - {0x31680A88F8953030, 0x89705F4136B4A597}, // 1e-9 - {0xFDC20D2B36BA7C3D, 0xABCC77118461CEFC}, // 1e-8 - {0x3D32907604691B4C, 0xD6BF94D5E57A42BC}, // 1e-7 - {0xA63F9A49C2C1B10F, 0x8637BD05AF6C69B5}, // 1e-6 - {0x0FCF80DC33721D53, 0xA7C5AC471B478423}, // 1e-5 - {0xD3C36113404EA4A8, 0xD1B71758E219652B}, // 1e-4 - {0x645A1CAC083126E9, 0x83126E978D4FDF3B}, // 1e-3 - {0x3D70A3D70A3D70A3, 0xA3D70A3D70A3D70A}, // 1e-2 - {0xCCCCCCCCCCCCCCCC, 0xCCCCCCCCCCCCCCCC}, // 1e-1 - {0x0000000000000000, 0x8000000000000000}, // 1e0 - {0x0000000000000000, 0xA000000000000000}, // 1e1 - {0x0000000000000000, 0xC800000000000000}, // 1e2 - {0x0000000000000000, 0xFA00000000000000}, // 1e3 - {0x0000000000000000, 0x9C40000000000000}, // 1e4 - {0x0000000000000000, 0xC350000000000000}, // 1e5 - {0x0000000000000000, 0xF424000000000000}, // 1e6 - {0x0000000000000000, 0x9896800000000000}, // 1e7 - {0x0000000000000000, 0xBEBC200000000000}, // 1e8 - {0x0000000000000000, 0xEE6B280000000000}, // 1e9 - {0x0000000000000000, 0x9502F90000000000}, // 1e10 - {0x0000000000000000, 0xBA43B74000000000}, // 1e11 - {0x0000000000000000, 0xE8D4A51000000000}, // 1e12 - {0x0000000000000000, 0x9184E72A00000000}, // 1e13 - {0x0000000000000000, 0xB5E620F480000000}, // 1e14 - {0x0000000000000000, 0xE35FA931A0000000}, // 1e15 - {0x0000000000000000, 0x8E1BC9BF04000000}, // 1e16 - {0x0000000000000000, 0xB1A2BC2EC5000000}, // 1e17 - {0x0000000000000000, 0xDE0B6B3A76400000}, // 1e18 - {0x0000000000000000, 0x8AC7230489E80000}, // 1e19 - {0x0000000000000000, 0xAD78EBC5AC620000}, // 1e20 - {0x0000000000000000, 0xD8D726B7177A8000}, // 1e21 - {0x0000000000000000, 0x878678326EAC9000}, // 1e22 - {0x0000000000000000, 0xA968163F0A57B400}, // 1e23 - {0x0000000000000000, 0xD3C21BCECCEDA100}, // 1e24 - {0x0000000000000000, 0x84595161401484A0}, // 1e25 - {0x0000000000000000, 0xA56FA5B99019A5C8}, // 1e26 - {0x0000000000000000, 0xCECB8F27F4200F3A}, // 1e27 - {0x4000000000000000, 0x813F3978F8940984}, // 1e28 - {0x5000000000000000, 0xA18F07D736B90BE5}, // 1e29 - {0xA400000000000000, 0xC9F2C9CD04674EDE}, // 1e30 - {0x4D00000000000000, 0xFC6F7C4045812296}, // 1e31 - {0xF020000000000000, 0x9DC5ADA82B70B59D}, // 1e32 - {0x6C28000000000000, 0xC5371912364CE305}, // 1e33 - {0xC732000000000000, 0xF684DF56C3E01BC6}, // 1e34 - {0x3C7F400000000000, 0x9A130B963A6C115C}, // 1e35 - {0x4B9F100000000000, 0xC097CE7BC90715B3}, // 1e36 - {0x1E86D40000000000, 0xF0BDC21ABB48DB20}, // 1e37 - {0x1314448000000000, 0x96769950B50D88F4}, // 1e38 - {0x17D955A000000000, 0xBC143FA4E250EB31}, // 1e39 - {0x5DCFAB0800000000, 0xEB194F8E1AE525FD}, // 1e40 - {0x5AA1CAE500000000, 0x92EFD1B8D0CF37BE}, // 1e41 - {0xF14A3D9E40000000, 0xB7ABC627050305AD}, // 1e42 - {0x6D9CCD05D0000000, 0xE596B7B0C643C719}, // 1e43 - {0xE4820023A2000000, 0x8F7E32CE7BEA5C6F}, // 1e44 - {0xDDA2802C8A800000, 0xB35DBF821AE4F38B}, // 1e45 - {0xD50B2037AD200000, 0xE0352F62A19E306E}, // 1e46 - {0x4526F422CC340000, 0x8C213D9DA502DE45}, // 1e47 - {0x9670B12B7F410000, 0xAF298D050E4395D6}, // 1e48 - {0x3C0CDD765F114000, 0xDAF3F04651D47B4C}, // 1e49 - {0xA5880A69FB6AC800, 0x88D8762BF324CD0F}, // 1e50 - {0x8EEA0D047A457A00, 0xAB0E93B6EFEE0053}, // 1e51 - {0x72A4904598D6D880, 0xD5D238A4ABE98068}, // 1e52 - {0x47A6DA2B7F864750, 0x85A36366EB71F041}, // 1e53 - {0x999090B65F67D924, 0xA70C3C40A64E6C51}, // 1e54 - {0xFFF4B4E3F741CF6D, 0xD0CF4B50CFE20765}, // 1e55 - {0xBFF8F10E7A8921A4, 0x82818F1281ED449F}, // 1e56 - {0xAFF72D52192B6A0D, 0xA321F2D7226895C7}, // 1e57 - {0x9BF4F8A69F764490, 0xCBEA6F8CEB02BB39}, // 1e58 - {0x02F236D04753D5B4, 0xFEE50B7025C36A08}, // 1e59 - {0x01D762422C946590, 0x9F4F2726179A2245}, // 1e60 - {0x424D3AD2B7B97EF5, 0xC722F0EF9D80AAD6}, // 1e61 - {0xD2E0898765A7DEB2, 0xF8EBAD2B84E0D58B}, // 1e62 - {0x63CC55F49F88EB2F, 0x9B934C3B330C8577}, // 1e63 - {0x3CBF6B71C76B25FB, 0xC2781F49FFCFA6D5}, // 1e64 - {0x8BEF464E3945EF7A, 0xF316271C7FC3908A}, // 1e65 - {0x97758BF0E3CBB5AC, 0x97EDD871CFDA3A56}, // 1e66 - {0x3D52EEED1CBEA317, 0xBDE94E8E43D0C8EC}, // 1e67 - {0x4CA7AAA863EE4BDD, 0xED63A231D4C4FB27}, // 1e68 - {0x8FE8CAA93E74EF6A, 0x945E455F24FB1CF8}, // 1e69 - {0xB3E2FD538E122B44, 0xB975D6B6EE39E436}, // 1e70 - {0x60DBBCA87196B616, 0xE7D34C64A9C85D44}, // 1e71 - {0xBC8955E946FE31CD, 0x90E40FBEEA1D3A4A}, // 1e72 - {0x6BABAB6398BDBE41, 0xB51D13AEA4A488DD}, // 1e73 - {0xC696963C7EED2DD1, 0xE264589A4DCDAB14}, // 1e74 - {0xFC1E1DE5CF543CA2, 0x8D7EB76070A08AEC}, // 1e75 - {0x3B25A55F43294BCB, 0xB0DE65388CC8ADA8}, // 1e76 - {0x49EF0EB713F39EBE, 0xDD15FE86AFFAD912}, // 1e77 - {0x6E3569326C784337, 0x8A2DBF142DFCC7AB}, // 1e78 - {0x49C2C37F07965404, 0xACB92ED9397BF996}, // 1e79 - {0xDC33745EC97BE906, 0xD7E77A8F87DAF7FB}, // 1e80 - {0x69A028BB3DED71A3, 0x86F0AC99B4E8DAFD}, // 1e81 - {0xC40832EA0D68CE0C, 0xA8ACD7C0222311BC}, // 1e82 - {0xF50A3FA490C30190, 0xD2D80DB02AABD62B}, // 1e83 - {0x792667C6DA79E0FA, 0x83C7088E1AAB65DB}, // 1e84 - {0x577001B891185938, 0xA4B8CAB1A1563F52}, // 1e85 - {0xED4C0226B55E6F86, 0xCDE6FD5E09ABCF26}, // 1e86 - {0x544F8158315B05B4, 0x80B05E5AC60B6178}, // 1e87 - {0x696361AE3DB1C721, 0xA0DC75F1778E39D6}, // 1e88 - {0x03BC3A19CD1E38E9, 0xC913936DD571C84C}, // 1e89 - {0x04AB48A04065C723, 0xFB5878494ACE3A5F}, // 1e90 - {0x62EB0D64283F9C76, 0x9D174B2DCEC0E47B}, // 1e91 - {0x3BA5D0BD324F8394, 0xC45D1DF942711D9A}, // 1e92 - {0xCA8F44EC7EE36479, 0xF5746577930D6500}, // 1e93 - {0x7E998B13CF4E1ECB, 0x9968BF6ABBE85F20}, // 1e94 - {0x9E3FEDD8C321A67E, 0xBFC2EF456AE276E8}, // 1e95 - {0xC5CFE94EF3EA101E, 0xEFB3AB16C59B14A2}, // 1e96 - {0xBBA1F1D158724A12, 0x95D04AEE3B80ECE5}, // 1e97 - {0x2A8A6E45AE8EDC97, 0xBB445DA9CA61281F}, // 1e98 - {0xF52D09D71A3293BD, 0xEA1575143CF97226}, // 1e99 - {0x593C2626705F9C56, 0x924D692CA61BE758}, // 1e100 - {0x6F8B2FB00C77836C, 0xB6E0C377CFA2E12E}, // 1e101 - {0x0B6DFB9C0F956447, 0xE498F455C38B997A}, // 1e102 - {0x4724BD4189BD5EAC, 0x8EDF98B59A373FEC}, // 1e103 - {0x58EDEC91EC2CB657, 0xB2977EE300C50FE7}, // 1e104 - {0x2F2967B66737E3ED, 0xDF3D5E9BC0F653E1}, // 1e105 - {0xBD79E0D20082EE74, 0x8B865B215899F46C}, // 1e106 - {0xECD8590680A3AA11, 0xAE67F1E9AEC07187}, // 1e107 - {0xE80E6F4820CC9495, 0xDA01EE641A708DE9}, // 1e108 - {0x3109058D147FDCDD, 0x884134FE908658B2}, // 1e109 - {0xBD4B46F0599FD415, 0xAA51823E34A7EEDE}, // 1e110 - {0x6C9E18AC7007C91A, 0xD4E5E2CDC1D1EA96}, // 1e111 - {0x03E2CF6BC604DDB0, 0x850FADC09923329E}, // 1e112 - {0x84DB8346B786151C, 0xA6539930BF6BFF45}, // 1e113 - {0xE612641865679A63, 0xCFE87F7CEF46FF16}, // 1e114 - {0x4FCB7E8F3F60C07E, 0x81F14FAE158C5F6E}, // 1e115 - {0xE3BE5E330F38F09D, 0xA26DA3999AEF7749}, // 1e116 - {0x5CADF5BFD3072CC5, 0xCB090C8001AB551C}, // 1e117 - {0x73D9732FC7C8F7F6, 0xFDCB4FA002162A63}, // 1e118 - {0x2867E7FDDCDD9AFA, 0x9E9F11C4014DDA7E}, // 1e119 - {0xB281E1FD541501B8, 0xC646D63501A1511D}, // 1e120 - {0x1F225A7CA91A4226, 0xF7D88BC24209A565}, // 1e121 - {0x3375788DE9B06958, 0x9AE757596946075F}, // 1e122 - {0x0052D6B1641C83AE, 0xC1A12D2FC3978937}, // 1e123 - {0xC0678C5DBD23A49A, 0xF209787BB47D6B84}, // 1e124 - {0xF840B7BA963646E0, 0x9745EB4D50CE6332}, // 1e125 - {0xB650E5A93BC3D898, 0xBD176620A501FBFF}, // 1e126 - {0xA3E51F138AB4CEBE, 0xEC5D3FA8CE427AFF}, // 1e127 - {0xC66F336C36B10137, 0x93BA47C980E98CDF}, // 1e128 - {0xB80B0047445D4184, 0xB8A8D9BBE123F017}, // 1e129 - {0xA60DC059157491E5, 0xE6D3102AD96CEC1D}, // 1e130 - {0x87C89837AD68DB2F, 0x9043EA1AC7E41392}, // 1e131 - {0x29BABE4598C311FB, 0xB454E4A179DD1877}, // 1e132 - {0xF4296DD6FEF3D67A, 0xE16A1DC9D8545E94}, // 1e133 - {0x1899E4A65F58660C, 0x8CE2529E2734BB1D}, // 1e134 - {0x5EC05DCFF72E7F8F, 0xB01AE745B101E9E4}, // 1e135 - {0x76707543F4FA1F73, 0xDC21A1171D42645D}, // 1e136 - {0x6A06494A791C53A8, 0x899504AE72497EBA}, // 1e137 - {0x0487DB9D17636892, 0xABFA45DA0EDBDE69}, // 1e138 - {0x45A9D2845D3C42B6, 0xD6F8D7509292D603}, // 1e139 - {0x0B8A2392BA45A9B2, 0x865B86925B9BC5C2}, // 1e140 - {0x8E6CAC7768D7141E, 0xA7F26836F282B732}, // 1e141 - {0x3207D795430CD926, 0xD1EF0244AF2364FF}, // 1e142 - {0x7F44E6BD49E807B8, 0x8335616AED761F1F}, // 1e143 - {0x5F16206C9C6209A6, 0xA402B9C5A8D3A6E7}, // 1e144 - {0x36DBA887C37A8C0F, 0xCD036837130890A1}, // 1e145 - {0xC2494954DA2C9789, 0x802221226BE55A64}, // 1e146 - {0xF2DB9BAA10B7BD6C, 0xA02AA96B06DEB0FD}, // 1e147 - {0x6F92829494E5ACC7, 0xC83553C5C8965D3D}, // 1e148 - {0xCB772339BA1F17F9, 0xFA42A8B73ABBF48C}, // 1e149 - {0xFF2A760414536EFB, 0x9C69A97284B578D7}, // 1e150 - {0xFEF5138519684ABA, 0xC38413CF25E2D70D}, // 1e151 - {0x7EB258665FC25D69, 0xF46518C2EF5B8CD1}, // 1e152 - {0xEF2F773FFBD97A61, 0x98BF2F79D5993802}, // 1e153 - {0xAAFB550FFACFD8FA, 0xBEEEFB584AFF8603}, // 1e154 - {0x95BA2A53F983CF38, 0xEEAABA2E5DBF6784}, // 1e155 - {0xDD945A747BF26183, 0x952AB45CFA97A0B2}, // 1e156 - {0x94F971119AEEF9E4, 0xBA756174393D88DF}, // 1e157 - {0x7A37CD5601AAB85D, 0xE912B9D1478CEB17}, // 1e158 - {0xAC62E055C10AB33A, 0x91ABB422CCB812EE}, // 1e159 - {0x577B986B314D6009, 0xB616A12B7FE617AA}, // 1e160 - {0xED5A7E85FDA0B80B, 0xE39C49765FDF9D94}, // 1e161 - {0x14588F13BE847307, 0x8E41ADE9FBEBC27D}, // 1e162 - {0x596EB2D8AE258FC8, 0xB1D219647AE6B31C}, // 1e163 - {0x6FCA5F8ED9AEF3BB, 0xDE469FBD99A05FE3}, // 1e164 - {0x25DE7BB9480D5854, 0x8AEC23D680043BEE}, // 1e165 - {0xAF561AA79A10AE6A, 0xADA72CCC20054AE9}, // 1e166 - {0x1B2BA1518094DA04, 0xD910F7FF28069DA4}, // 1e167 - {0x90FB44D2F05D0842, 0x87AA9AFF79042286}, // 1e168 - {0x353A1607AC744A53, 0xA99541BF57452B28}, // 1e169 - {0x42889B8997915CE8, 0xD3FA922F2D1675F2}, // 1e170 - {0x69956135FEBADA11, 0x847C9B5D7C2E09B7}, // 1e171 - {0x43FAB9837E699095, 0xA59BC234DB398C25}, // 1e172 - {0x94F967E45E03F4BB, 0xCF02B2C21207EF2E}, // 1e173 - {0x1D1BE0EEBAC278F5, 0x8161AFB94B44F57D}, // 1e174 - {0x6462D92A69731732, 0xA1BA1BA79E1632DC}, // 1e175 - {0x7D7B8F7503CFDCFE, 0xCA28A291859BBF93}, // 1e176 - {0x5CDA735244C3D43E, 0xFCB2CB35E702AF78}, // 1e177 - {0x3A0888136AFA64A7, 0x9DEFBF01B061ADAB}, // 1e178 - {0x088AAA1845B8FDD0, 0xC56BAEC21C7A1916}, // 1e179 - {0x8AAD549E57273D45, 0xF6C69A72A3989F5B}, // 1e180 - {0x36AC54E2F678864B, 0x9A3C2087A63F6399}, // 1e181 - {0x84576A1BB416A7DD, 0xC0CB28A98FCF3C7F}, // 1e182 - {0x656D44A2A11C51D5, 0xF0FDF2D3F3C30B9F}, // 1e183 - {0x9F644AE5A4B1B325, 0x969EB7C47859E743}, // 1e184 - {0x873D5D9F0DDE1FEE, 0xBC4665B596706114}, // 1e185 - {0xA90CB506D155A7EA, 0xEB57FF22FC0C7959}, // 1e186 - {0x09A7F12442D588F2, 0x9316FF75DD87CBD8}, // 1e187 - {0x0C11ED6D538AEB2F, 0xB7DCBF5354E9BECE}, // 1e188 - {0x8F1668C8A86DA5FA, 0xE5D3EF282A242E81}, // 1e189 - {0xF96E017D694487BC, 0x8FA475791A569D10}, // 1e190 - {0x37C981DCC395A9AC, 0xB38D92D760EC4455}, // 1e191 - {0x85BBE253F47B1417, 0xE070F78D3927556A}, // 1e192 - {0x93956D7478CCEC8E, 0x8C469AB843B89562}, // 1e193 - {0x387AC8D1970027B2, 0xAF58416654A6BABB}, // 1e194 - {0x06997B05FCC0319E, 0xDB2E51BFE9D0696A}, // 1e195 - {0x441FECE3BDF81F03, 0x88FCF317F22241E2}, // 1e196 - {0xD527E81CAD7626C3, 0xAB3C2FDDEEAAD25A}, // 1e197 - {0x8A71E223D8D3B074, 0xD60B3BD56A5586F1}, // 1e198 - {0xF6872D5667844E49, 0x85C7056562757456}, // 1e199 - {0xB428F8AC016561DB, 0xA738C6BEBB12D16C}, // 1e200 - {0xE13336D701BEBA52, 0xD106F86E69D785C7}, // 1e201 - {0xECC0024661173473, 0x82A45B450226B39C}, // 1e202 - {0x27F002D7F95D0190, 0xA34D721642B06084}, // 1e203 - {0x31EC038DF7B441F4, 0xCC20CE9BD35C78A5}, // 1e204 - {0x7E67047175A15271, 0xFF290242C83396CE}, // 1e205 - {0x0F0062C6E984D386, 0x9F79A169BD203E41}, // 1e206 - {0x52C07B78A3E60868, 0xC75809C42C684DD1}, // 1e207 - {0xA7709A56CCDF8A82, 0xF92E0C3537826145}, // 1e208 - {0x88A66076400BB691, 0x9BBCC7A142B17CCB}, // 1e209 - {0x6ACFF893D00EA435, 0xC2ABF989935DDBFE}, // 1e210 - {0x0583F6B8C4124D43, 0xF356F7EBF83552FE}, // 1e211 - {0xC3727A337A8B704A, 0x98165AF37B2153DE}, // 1e212 - {0x744F18C0592E4C5C, 0xBE1BF1B059E9A8D6}, // 1e213 - {0x1162DEF06F79DF73, 0xEDA2EE1C7064130C}, // 1e214 - {0x8ADDCB5645AC2BA8, 0x9485D4D1C63E8BE7}, // 1e215 - {0x6D953E2BD7173692, 0xB9A74A0637CE2EE1}, // 1e216 - {0xC8FA8DB6CCDD0437, 0xE8111C87C5C1BA99}, // 1e217 - {0x1D9C9892400A22A2, 0x910AB1D4DB9914A0}, // 1e218 - {0x2503BEB6D00CAB4B, 0xB54D5E4A127F59C8}, // 1e219 - {0x2E44AE64840FD61D, 0xE2A0B5DC971F303A}, // 1e220 - {0x5CEAECFED289E5D2, 0x8DA471A9DE737E24}, // 1e221 - {0x7425A83E872C5F47, 0xB10D8E1456105DAD}, // 1e222 - {0xD12F124E28F77719, 0xDD50F1996B947518}, // 1e223 - {0x82BD6B70D99AAA6F, 0x8A5296FFE33CC92F}, // 1e224 - {0x636CC64D1001550B, 0xACE73CBFDC0BFB7B}, // 1e225 - {0x3C47F7E05401AA4E, 0xD8210BEFD30EFA5A}, // 1e226 - {0x65ACFAEC34810A71, 0x8714A775E3E95C78}, // 1e227 - {0x7F1839A741A14D0D, 0xA8D9D1535CE3B396}, // 1e228 - {0x1EDE48111209A050, 0xD31045A8341CA07C}, // 1e229 - {0x934AED0AAB460432, 0x83EA2B892091E44D}, // 1e230 - {0xF81DA84D5617853F, 0xA4E4B66B68B65D60}, // 1e231 - {0x36251260AB9D668E, 0xCE1DE40642E3F4B9}, // 1e232 - {0xC1D72B7C6B426019, 0x80D2AE83E9CE78F3}, // 1e233 - {0xB24CF65B8612F81F, 0xA1075A24E4421730}, // 1e234 - {0xDEE033F26797B627, 0xC94930AE1D529CFC}, // 1e235 - {0x169840EF017DA3B1, 0xFB9B7CD9A4A7443C}, // 1e236 - {0x8E1F289560EE864E, 0x9D412E0806E88AA5}, // 1e237 - {0xF1A6F2BAB92A27E2, 0xC491798A08A2AD4E}, // 1e238 - {0xAE10AF696774B1DB, 0xF5B5D7EC8ACB58A2}, // 1e239 - {0xACCA6DA1E0A8EF29, 0x9991A6F3D6BF1765}, // 1e240 - {0x17FD090A58D32AF3, 0xBFF610B0CC6EDD3F}, // 1e241 - {0xDDFC4B4CEF07F5B0, 0xEFF394DCFF8A948E}, // 1e242 - {0x4ABDAF101564F98E, 0x95F83D0A1FB69CD9}, // 1e243 - {0x9D6D1AD41ABE37F1, 0xBB764C4CA7A4440F}, // 1e244 - {0x84C86189216DC5ED, 0xEA53DF5FD18D5513}, // 1e245 - {0x32FD3CF5B4E49BB4, 0x92746B9BE2F8552C}, // 1e246 - {0x3FBC8C33221DC2A1, 0xB7118682DBB66A77}, // 1e247 - {0x0FABAF3FEAA5334A, 0xE4D5E82392A40515}, // 1e248 - {0x29CB4D87F2A7400E, 0x8F05B1163BA6832D}, // 1e249 - {0x743E20E9EF511012, 0xB2C71D5BCA9023F8}, // 1e250 - {0x914DA9246B255416, 0xDF78E4B2BD342CF6}, // 1e251 - {0x1AD089B6C2F7548E, 0x8BAB8EEFB6409C1A}, // 1e252 - {0xA184AC2473B529B1, 0xAE9672ABA3D0C320}, // 1e253 - {0xC9E5D72D90A2741E, 0xDA3C0F568CC4F3E8}, // 1e254 - {0x7E2FA67C7A658892, 0x8865899617FB1871}, // 1e255 - {0xDDBB901B98FEEAB7, 0xAA7EEBFB9DF9DE8D}, // 1e256 - {0x552A74227F3EA565, 0xD51EA6FA85785631}, // 1e257 - {0xD53A88958F87275F, 0x8533285C936B35DE}, // 1e258 - {0x8A892ABAF368F137, 0xA67FF273B8460356}, // 1e259 - {0x2D2B7569B0432D85, 0xD01FEF10A657842C}, // 1e260 - {0x9C3B29620E29FC73, 0x8213F56A67F6B29B}, // 1e261 - {0x8349F3BA91B47B8F, 0xA298F2C501F45F42}, // 1e262 - {0x241C70A936219A73, 0xCB3F2F7642717713}, // 1e263 - {0xED238CD383AA0110, 0xFE0EFB53D30DD4D7}, // 1e264 - {0xF4363804324A40AA, 0x9EC95D1463E8A506}, // 1e265 - {0xB143C6053EDCD0D5, 0xC67BB4597CE2CE48}, // 1e266 - {0xDD94B7868E94050A, 0xF81AA16FDC1B81DA}, // 1e267 - {0xCA7CF2B4191C8326, 0x9B10A4E5E9913128}, // 1e268 - {0xFD1C2F611F63A3F0, 0xC1D4CE1F63F57D72}, // 1e269 - {0xBC633B39673C8CEC, 0xF24A01A73CF2DCCF}, // 1e270 - {0xD5BE0503E085D813, 0x976E41088617CA01}, // 1e271 - {0x4B2D8644D8A74E18, 0xBD49D14AA79DBC82}, // 1e272 - {0xDDF8E7D60ED1219E, 0xEC9C459D51852BA2}, // 1e273 - {0xCABB90E5C942B503, 0x93E1AB8252F33B45}, // 1e274 - {0x3D6A751F3B936243, 0xB8DA1662E7B00A17}, // 1e275 - {0x0CC512670A783AD4, 0xE7109BFBA19C0C9D}, // 1e276 - {0x27FB2B80668B24C5, 0x906A617D450187E2}, // 1e277 - {0xB1F9F660802DEDF6, 0xB484F9DC9641E9DA}, // 1e278 - {0x5E7873F8A0396973, 0xE1A63853BBD26451}, // 1e279 - {0xDB0B487B6423E1E8, 0x8D07E33455637EB2}, // 1e280 - {0x91CE1A9A3D2CDA62, 0xB049DC016ABC5E5F}, // 1e281 - {0x7641A140CC7810FB, 0xDC5C5301C56B75F7}, // 1e282 - {0xA9E904C87FCB0A9D, 0x89B9B3E11B6329BA}, // 1e283 - {0x546345FA9FBDCD44, 0xAC2820D9623BF429}, // 1e284 - {0xA97C177947AD4095, 0xD732290FBACAF133}, // 1e285 - {0x49ED8EABCCCC485D, 0x867F59A9D4BED6C0}, // 1e286 - {0x5C68F256BFFF5A74, 0xA81F301449EE8C70}, // 1e287 - {0x73832EEC6FFF3111, 0xD226FC195C6A2F8C}, // 1e288 -}; +// ---------------- Auxiliary - JSON -// wuffs_base__private_implementation__f64_powers_of_10 holds powers of 10 that -// can be exactly represented by a float64 (what C calls a double). -static const double wuffs_base__private_implementation__f64_powers_of_10[23] = { - 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, - 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22, +namespace wuffs_aux { + +struct DecodeJsonResult { + DecodeJsonResult(std::string&& error_message0, uint64_t cursor_position0); + + std::string error_message; + uint64_t cursor_position; }; -// ---------------- IEEE 754 Floating Point +class DecodeJsonCallbacks { + public: + virtual ~DecodeJsonCallbacks(); -WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u16 // -wuffs_base__ieee_754_bit_representation__from_f64_to_u16_truncate(double f) { - uint64_t u = 0; - if (sizeof(uint64_t) == sizeof(double)) { - memcpy(&u, &f, sizeof(uint64_t)); - } - uint16_t neg = ((uint16_t)((u >> 63) << 15)); - u &= 0x7FFFFFFFFFFFFFFF; - uint64_t exp = u >> 52; - uint64_t man = u & 0x000FFFFFFFFFFFFF; + // AppendXxx are called for leaf nodes: literals, numbers and strings. For + // strings, the Callbacks implementation is responsible for tracking map keys + // versus other values. - if (exp == 0x7FF) { - if (man == 0) { // Infinity. - wuffs_base__lossy_value_u16 ret; - ret.value = neg | 0x7C00; - ret.lossy = false; - return ret; - } - // NaN. Shift the 52 mantissa bits to 10 mantissa bits, keeping the most - // significant mantissa bit (quiet vs signaling NaNs). Also set the low 9 - // bits of ret.value so that the 10-bit mantissa is non-zero. - wuffs_base__lossy_value_u16 ret; - ret.value = neg | 0x7DFF | ((uint16_t)(man >> 42)); - ret.lossy = false; - return ret; + virtual std::string AppendNull() = 0; + virtual std::string AppendBool(bool val) = 0; + virtual std::string AppendF64(double val) = 0; + virtual std::string AppendI64(int64_t val) = 0; + virtual std::string AppendTextString(std::string&& val) = 0; - } else if (exp > 0x40E) { // Truncate to the largest finite f16. - wuffs_base__lossy_value_u16 ret; - ret.value = neg | 0x7BFF; - ret.lossy = true; - return ret; + // Push and Pop are called for container nodes: JSON arrays (lists) and JSON + // objects (dictionaries). + // + // The flags bits combine exactly one of: + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT + // and exactly one of: + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT - } else if (exp <= 0x3E6) { // Truncate to zero. - wuffs_base__lossy_value_u16 ret; - ret.value = neg; - ret.lossy = (u != 0); - return ret; + virtual std::string Push(uint32_t flags) = 0; + virtual std::string Pop(uint32_t flags) = 0; - } else if (exp <= 0x3F0) { // Normal f64, subnormal f16. - // Convert from a 53-bit mantissa (after realizing the implicit bit) to a - // 10-bit mantissa and then adjust for the exponent. - man |= 0x0010000000000000; - uint32_t shift = ((uint32_t)(1051 - exp)); // 1051 = 0x3F0 + 53 - 10. - uint64_t shifted_man = man >> shift; - wuffs_base__lossy_value_u16 ret; - ret.value = neg | ((uint16_t)shifted_man); - ret.lossy = (shifted_man << shift) != man; - return ret; - } + // Done is always the last Callback method called by DecodeJson, whether or + // not parsing the input as JSON encountered an error. Even when successful, + // trailing data may remain in input and buffer. See "Unintuitive JSON + // Parsing" (https://nullprogram.com/blog/2019/12/28/) which discusses JSON + // parsing and when it stops. + // + // Do not keep a reference to buffer or buffer.data.ptr after Done returns, + // as DecodeJson may then de-allocate the backing array. + // + // The default Done implementation is a no-op. + virtual void // + Done(DecodeJsonResult& result, sync_io::Input& input, IOBuffer& buffer); +}; - // Normal f64, normal f16. +extern const char DecodeJson_BadJsonPointer[]; +extern const char DecodeJson_NoMatch[]; - // Re-bias from 1023 to 15 and shift above f16's 10 mantissa bits. - exp = (exp - 1008) << 10; // 1008 = 1023 - 15 = 0x3FF - 0xF. +// The FooArgBar types add structure to Foo's optional arguments. They wrap +// inner representations for several reasons: +// - It provides a home for the DefaultValue static method, for Foo callers +// that want to override some but not all optional arguments. +// - It provides the "Bar" name at Foo call sites, which can help self- +// document Foo calls with many arguemnts. +// - It provides some type safety against accidentally transposing or omitting +// adjacent fundamentally-numeric-typed optional arguments. - // Convert from a 52-bit mantissa (excluding the implicit bit) to a 10-bit - // mantissa (again excluding the implicit bit). We lose some information if - // any of the bottom 42 bits are non-zero. - wuffs_base__lossy_value_u16 ret; - ret.value = neg | ((uint16_t)exp) | ((uint16_t)(man >> 42)); - ret.lossy = (man << 22) != 0; - return ret; -} +// DecodeJsonArgQuirks wraps an optional argument to DecodeJson. +struct DecodeJsonArgQuirks { + explicit DecodeJsonArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0); -WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u32 // -wuffs_base__ieee_754_bit_representation__from_f64_to_u32_truncate(double f) { - uint64_t u = 0; - if (sizeof(uint64_t) == sizeof(double)) { - memcpy(&u, &f, sizeof(uint64_t)); - } - uint32_t neg = ((uint32_t)(u >> 63)) << 31; - u &= 0x7FFFFFFFFFFFFFFF; - uint64_t exp = u >> 52; - uint64_t man = u & 0x000FFFFFFFFFFFFF; + // DefaultValue returns an empty slice. + static DecodeJsonArgQuirks DefaultValue(); - if (exp == 0x7FF) { - if (man == 0) { // Infinity. - wuffs_base__lossy_value_u32 ret; - ret.value = neg | 0x7F800000; - ret.lossy = false; - return ret; - } - // NaN. Shift the 52 mantissa bits to 23 mantissa bits, keeping the most - // significant mantissa bit (quiet vs signaling NaNs). Also set the low 22 - // bits of ret.value so that the 23-bit mantissa is non-zero. - wuffs_base__lossy_value_u32 ret; - ret.value = neg | 0x7FBFFFFF | ((uint32_t)(man >> 29)); - ret.lossy = false; - return ret; + const QuirkKeyValuePair* ptr; + const size_t len; +}; - } else if (exp > 0x47E) { // Truncate to the largest finite f32. - wuffs_base__lossy_value_u32 ret; - ret.value = neg | 0x7F7FFFFF; - ret.lossy = true; - return ret; +// DecodeJsonArgJsonPointer wraps an optional argument to DecodeJson. +struct DecodeJsonArgJsonPointer { + explicit DecodeJsonArgJsonPointer(std::string repr0); - } else if (exp <= 0x369) { // Truncate to zero. - wuffs_base__lossy_value_u32 ret; - ret.value = neg; - ret.lossy = (u != 0); - return ret; + // DefaultValue returns an empty string. + static DecodeJsonArgJsonPointer DefaultValue(); - } else if (exp <= 0x380) { // Normal f64, subnormal f32. - // Convert from a 53-bit mantissa (after realizing the implicit bit) to a - // 23-bit mantissa and then adjust for the exponent. - man |= 0x0010000000000000; - uint32_t shift = ((uint32_t)(926 - exp)); // 926 = 0x380 + 53 - 23. - uint64_t shifted_man = man >> shift; - wuffs_base__lossy_value_u32 ret; - ret.value = neg | ((uint32_t)shifted_man); - ret.lossy = (shifted_man << shift) != man; - return ret; - } + std::string repr; +}; - // Normal f64, normal f32. +// DecodeJson calls callbacks based on the JSON-formatted data in input. +// +// On success, the returned error_message is empty and cursor_position counts +// the number of bytes consumed. On failure, error_message is non-empty and +// cursor_position is the location of the error. That error may be a content +// error (invalid JSON) or an input error (e.g. network failure). +// +// json_pointer is a query in the JSON Pointer (RFC 6901) syntax. The callbacks +// run for the input's sub-node that matches the query. DecodeJson_NoMatch is +// returned if no matching sub-node was found. The empty query matches the +// input's root node, consistent with JSON Pointer semantics. +// +// The JSON Pointer implementation is greedy: duplicate keys are not rejected +// but only the first match for each '/'-separated fragment is followed. +DecodeJsonResult // +DecodeJson(DecodeJsonCallbacks& callbacks, + sync_io::Input& input, + DecodeJsonArgQuirks quirks = DecodeJsonArgQuirks::DefaultValue(), + DecodeJsonArgJsonPointer json_pointer = + DecodeJsonArgJsonPointer::DefaultValue()); - // Re-bias from 1023 to 127 and shift above f32's 23 mantissa bits. - exp = (exp - 896) << 23; // 896 = 1023 - 127 = 0x3FF - 0x7F. +} // namespace wuffs_aux - // Convert from a 52-bit mantissa (excluding the implicit bit) to a 23-bit - // mantissa (again excluding the implicit bit). We lose some information if - // any of the bottom 29 bits are non-zero. - wuffs_base__lossy_value_u32 ret; - ret.value = neg | ((uint32_t)exp) | ((uint32_t)(man >> 29)); - ret.lossy = (man << 35) != 0; - return ret; -} +#endif // defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) -// -------- +// ‼ WUFFS C HEADER ENDS HERE. +#ifdef WUFFS_IMPLEMENTATION -#define WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE 2047 -#define WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION 800 +#ifdef __cplusplus +extern "C" { +#endif -// WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL is the largest N -// such that ((10 << N) < (1 << 64)). -#define WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL 60 +// ---------------- Fundamentals -// wuffs_base__private_implementation__high_prec_dec (abbreviated as HPD) is a -// fixed precision floating point decimal number, augmented with ±infinity -// values, but it cannot represent NaN (Not a Number). +// WUFFS_BASE__MAGIC is a magic number to check that initializers are called. +// It's not foolproof, given C doesn't automatically zero memory before use, +// but it should catch 99.99% of cases. // -// "High precision" means that the mantissa holds 800 decimal digits. 800 is -// WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION. +// Its (non-zero) value is arbitrary, based on md5sum("wuffs"). +#define WUFFS_BASE__MAGIC ((uint32_t)0x3CCB6C71) + +// WUFFS_BASE__DISABLED is a magic number to indicate that a non-recoverable +// error was previously encountered. // -// An HPD isn't for general purpose arithmetic, only for conversions to and -// from IEEE 754 double-precision floating point, where the largest and -// smallest positive, finite values are approximately 1.8e+308 and 4.9e-324. -// HPD exponents above +2047 mean infinity, below -2047 mean zero. The ±2047 -// bounds are further away from zero than ±(324 + 800), where 800 and 2047 is -// WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION and -// WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE. +// Its (non-zero) value is arbitrary, based on md5sum("disabled"). +#define WUFFS_BASE__DISABLED ((uint32_t)0x075AE3D2) + +// Use switch cases for coroutine suspension points, similar to the technique +// in https://www.chiark.greenend.org.uk/~sgtatham/coroutines.html // -// digits[.. num_digits] are the number's digits in big-endian order. The -// uint8_t values are in the range [0 ..= 9], not ['0' ..= '9'], where e.g. '7' -// is the ASCII value 0x37. +// The implicit fallthrough is intentional. // -// decimal_point is the index (within digits) of the decimal point. It may be -// negative or be larger than num_digits, in which case the explicit digits are -// padded with implicit zeroes. +// We use trivial macros instead of an explicit assignment and case statement +// so that clang-format doesn't get confused by the unusual "case"s. +#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0 case 0:; +#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT(n) \ + coro_susp_point = n; \ + case n:; + +#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(n) \ + if (!status.repr) { \ + goto ok; \ + } else if (*status.repr != '$') { \ + goto exit; \ + } \ + coro_susp_point = n; \ + goto suspend; \ + case n:; + +// The "defined(__clang__)" isn't redundant. While vanilla clang defines +// __GNUC__, clang-cl (which mimics MSVC's cl.exe) does not. +#if defined(__GNUC__) || defined(__clang__) +#define WUFFS_BASE__LIKELY(expr) (__builtin_expect(!!(expr), 1)) +#define WUFFS_BASE__UNLIKELY(expr) (__builtin_expect(!!(expr), 0)) +#else +#define WUFFS_BASE__LIKELY(expr) (expr) +#define WUFFS_BASE__UNLIKELY(expr) (expr) +#endif + +// -------- + +static inline wuffs_base__empty_struct // +wuffs_private_impl__ignore_status(wuffs_base__status z) { + return wuffs_base__make_empty_struct(); +} + +static inline wuffs_base__status // +wuffs_private_impl__status__ensure_not_a_suspension(wuffs_base__status z) { + if (z.repr && (*z.repr == '$')) { + z.repr = wuffs_base__error__cannot_return_a_suspension; + } + return z; +} + +// -------- + +// wuffs_private_impl__iterate_total_advance returns the exclusive +// pointer-offset at which iteration should stop. The overall slice has length +// total_len, each iteration's sub-slice has length iter_len and are placed +// iter_advance apart. // -// For example, if num_digits is 3 and digits is "\x07\x08\x09": -// - A decimal_point of -2 means ".00789" -// - A decimal_point of -1 means ".0789" -// - A decimal_point of +0 means ".789" -// - A decimal_point of +1 means "7.89" -// - A decimal_point of +2 means "78.9" -// - A decimal_point of +3 means "789." -// - A decimal_point of +4 means "7890." -// - A decimal_point of +5 means "78900." +// The iter_advance may not be larger than iter_len. The iter_advance may be +// smaller than iter_len, in which case the sub-slices will overlap. // -// As above, a decimal_point higher than +2047 means that the overall value is -// infinity, lower than -2047 means zero. +// The return value r satisfies ((0 <= r) && (r <= total_len)). // -// negative is a sign bit. An HPD can distinguish positive and negative zero. +// For example, if total_len = 15, iter_len = 5 and iter_advance = 3, there are +// four iterations at offsets 0, 3, 6 and 9. This function returns 12. // -// truncated is whether there are more than -// WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION digits, and at -// least one of those extra digits are non-zero. The existence of long-tail -// digits can affect rounding. +// 0123456789012345 +// [....] +// [....] +// [....] +// [....] +// $ +// 0123456789012345 // -// The "all fields are zero" value is valid, and represents the number +0. -typedef struct wuffs_base__private_implementation__high_prec_dec__struct { - uint32_t num_digits; - int32_t decimal_point; - bool negative; - bool truncated; - uint8_t digits[WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION]; -} wuffs_base__private_implementation__high_prec_dec; - -// wuffs_base__private_implementation__high_prec_dec__trim trims trailing -// zeroes from the h->digits[.. h->num_digits] slice. They have no benefit, -// since we explicitly track h->decimal_point. +// For example, if total_len = 15, iter_len = 5 and iter_advance = 5, there are +// three iterations at offsets 0, 5 and 10. This function returns 15. // -// Preconditions: -// - h is non-NULL. -static inline void // -wuffs_base__private_implementation__high_prec_dec__trim( - wuffs_base__private_implementation__high_prec_dec* h) { - while ((h->num_digits > 0) && (h->digits[h->num_digits - 1] == 0)) { - h->num_digits--; +// 0123456789012345 +// [....] +// [....] +// [....] +// $ +// 0123456789012345 +static inline size_t // +wuffs_private_impl__iterate_total_advance(size_t total_len, + size_t iter_len, + size_t iter_advance) { + if (total_len >= iter_len) { + size_t n = total_len - iter_len; + return ((n / iter_advance) * iter_advance) + iter_advance; } + return 0; } -// wuffs_base__private_implementation__high_prec_dec__assign sets h to -// represent the number x. -// -// Preconditions: -// - h is non-NULL. -static void // -wuffs_base__private_implementation__high_prec_dec__assign( - wuffs_base__private_implementation__high_prec_dec* h, - uint64_t x, - bool negative) { - uint32_t n = 0; +// ---------------- Numeric Types - // Set h->digits. - if (x > 0) { - // Calculate the digits, working right-to-left. After we determine n (how - // many digits there are), copy from buf to h->digits. - // - // UINT64_MAX, 18446744073709551615, is 20 digits long. It can be faster to - // copy a constant number of bytes than a variable number (20 instead of - // n). Make buf large enough (and start writing to it from the middle) so - // that can we always copy 20 bytes: the slice buf[(20-n) .. (40-n)]. - uint8_t buf[40] = {0}; - uint8_t* ptr = &buf[20]; - do { - uint64_t remaining = x / 10; - x -= remaining * 10; - ptr--; - *ptr = (uint8_t)x; - n++; - x = remaining; - } while (x > 0); - memcpy(h->digits, ptr, 20); - } +extern const uint8_t wuffs_private_impl__low_bits_mask__u8[8]; +extern const uint16_t wuffs_private_impl__low_bits_mask__u16[16]; +extern const uint32_t wuffs_private_impl__low_bits_mask__u32[32]; +extern const uint64_t wuffs_private_impl__low_bits_mask__u64[64]; - // Set h's other fields. - h->num_digits = n; - h->decimal_point = (int32_t)n; - h->negative = negative; - h->truncated = false; - wuffs_base__private_implementation__high_prec_dec__trim(h); +#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U8(n) \ + (wuffs_private_impl__low_bits_mask__u8[n]) +#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U16(n) \ + (wuffs_private_impl__low_bits_mask__u16[n]) +#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(n) \ + (wuffs_private_impl__low_bits_mask__u32[n]) +#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(n) \ + (wuffs_private_impl__low_bits_mask__u64[n]) + +// -------- + +static inline void // +wuffs_private_impl__u8__sat_add_indirect(uint8_t* x, uint8_t y) { + *x = wuffs_base__u8__sat_add(*x, y); } -static wuffs_base__status // -wuffs_base__private_implementation__high_prec_dec__parse( - wuffs_base__private_implementation__high_prec_dec* h, - wuffs_base__slice_u8 s, - uint32_t options) { - if (!h) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - h->num_digits = 0; - h->decimal_point = 0; - h->negative = false; - h->truncated = false; +static inline void // +wuffs_private_impl__u8__sat_sub_indirect(uint8_t* x, uint8_t y) { + *x = wuffs_base__u8__sat_sub(*x, y); +} - uint8_t* p = s.ptr; - uint8_t* q = s.ptr + s.len; +static inline void // +wuffs_private_impl__u16__sat_add_indirect(uint16_t* x, uint16_t y) { + *x = wuffs_base__u16__sat_add(*x, y); +} - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (;; p++) { - if (p >= q) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } else if (*p != '_') { - break; - } - } - } +static inline void // +wuffs_private_impl__u16__sat_sub_indirect(uint16_t* x, uint16_t y) { + *x = wuffs_base__u16__sat_sub(*x, y); +} - // Parse sign. - do { - if (*p == '+') { - p++; - } else if (*p == '-') { - h->negative = true; - p++; - } else { - break; - } - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (;; p++) { - if (p >= q) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } else if (*p != '_') { - break; - } - } - } - } while (0); +static inline void // +wuffs_private_impl__u32__sat_add_indirect(uint32_t* x, uint32_t y) { + *x = wuffs_base__u32__sat_add(*x, y); +} - // Parse digits, up to (and including) a '.', 'E' or 'e'. Examples for each - // limb in this if-else chain: - // - "0.789" - // - "1002.789" - // - ".789" - // - Other (invalid input). - uint32_t nd = 0; - int32_t dp = 0; - bool no_digits_before_separator = false; - if (('0' == *p) && - !(options & - WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES)) { - p++; - for (;; p++) { - if (p >= q) { - goto after_all; - } else if (*p == - ((options & - WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.')) { - p++; - goto after_sep; - } else if ((*p == 'E') || (*p == 'e')) { - p++; - goto after_exp; - } else if ((*p != '_') || - !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - } +static inline void // +wuffs_private_impl__u32__sat_sub_indirect(uint32_t* x, uint32_t y) { + *x = wuffs_base__u32__sat_sub(*x, y); +} - } else if (('0' <= *p) && (*p <= '9')) { - if (*p == '0') { - for (; (p < q) && (*p == '0'); p++) { - } - } else { - h->digits[nd++] = (uint8_t)(*p - '0'); - dp = (int32_t)nd; - p++; - } +static inline void // +wuffs_private_impl__u64__sat_add_indirect(uint64_t* x, uint64_t y) { + *x = wuffs_base__u64__sat_add(*x, y); +} - for (;; p++) { - if (p >= q) { - goto after_all; - } else if (('0' <= *p) && (*p <= '9')) { - if (nd < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { - h->digits[nd++] = (uint8_t)(*p - '0'); - dp = (int32_t)nd; - } else if ('0' != *p) { - // Long-tail non-zeroes set the truncated bit. - h->truncated = true; - } - } else if (*p == - ((options & - WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.')) { - p++; - goto after_sep; - } else if ((*p == 'E') || (*p == 'e')) { - p++; - goto after_exp; - } else if ((*p != '_') || - !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - } +static inline void // +wuffs_private_impl__u64__sat_sub_indirect(uint64_t* x, uint64_t y) { + *x = wuffs_base__u64__sat_sub(*x, y); +} - } else if (*p == ((options & - WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.')) { - p++; - no_digits_before_separator = true; +// ---------------- Numeric Types (Utility) - } else { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } +#define wuffs_base__utility__sign_extend_convert_u8_u32(a) \ + ((uint32_t)(int32_t)(int8_t)(a)) -after_sep: - for (;; p++) { - if (p >= q) { - goto after_all; - } else if ('0' == *p) { - if (nd == 0) { - // Track leading zeroes implicitly. - dp--; - } else if (nd < - WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { - h->digits[nd++] = (uint8_t)(*p - '0'); - } - } else if (('0' < *p) && (*p <= '9')) { - if (nd < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { - h->digits[nd++] = (uint8_t)(*p - '0'); - } else { - // Long-tail non-zeroes set the truncated bit. - h->truncated = true; - } - } else if ((*p == 'E') || (*p == 'e')) { - p++; - goto after_exp; - } else if ((*p != '_') || - !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - } +#define wuffs_base__utility__sign_extend_convert_u16_u32(a) \ + ((uint32_t)(int32_t)(int16_t)(a)) -after_exp: - do { - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (;; p++) { - if (p >= q) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } else if (*p != '_') { - break; - } - } - } +#define wuffs_base__utility__sign_extend_rshift_u32(a, n) \ + ((uint32_t)(((int32_t)(a)) >> (n))) - int32_t exp_sign = +1; - if (*p == '+') { - p++; - } else if (*p == '-') { - exp_sign = -1; - p++; - } +#define wuffs_base__utility__sign_extend_rshift_u64(a, n) \ + ((uint64_t)(((int64_t)(a)) >> (n))) - int32_t exp = 0; - const int32_t exp_large = - WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE + - WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION; - bool saw_exp_digits = false; - for (; p < q; p++) { - if ((*p == '_') && - (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - // No-op. - } else if (('0' <= *p) && (*p <= '9')) { - saw_exp_digits = true; - if (exp < exp_large) { - exp = (10 * exp) + ((int32_t)(*p - '0')); - } - } else { - break; - } - } - if (!saw_exp_digits) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - dp += exp_sign * exp; - } while (0); +#define wuffs_base__utility__make_bitvec256(e00, e01, e02, e03) \ + wuffs_base__make_bitvec256(e00, e01, e02, e03) -after_all: - if (p != q) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - h->num_digits = nd; - if (nd == 0) { - if (no_digits_before_separator) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - h->decimal_point = 0; - } else if (dp < - -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { - h->decimal_point = - -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE - 1; - } else if (dp > - +WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { - h->decimal_point = - +WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE + 1; - } else { - h->decimal_point = dp; - } - wuffs_base__private_implementation__high_prec_dec__trim(h); - return wuffs_base__make_status(NULL); -} +#define wuffs_base__utility__make_optional_u63(h, v) \ + wuffs_base__make_optional_u63(h, v) -// -------- +// ---------------- Slices and Tables -// wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits -// returns the number of additional decimal digits when left-shifting by shift. +// This function basically returns (ptr + len), except that that expression is +// Undefined Behavior in C (but not C++) when ptr is NULL, even if len is zero. // -// See below for preconditions. -static uint32_t // -wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits( - wuffs_base__private_implementation__high_prec_dec* h, - uint32_t shift) { - // Masking with 0x3F should be unnecessary (assuming the preconditions) but - // it's cheap and ensures that we don't overflow the - // wuffs_base__private_implementation__hpd_left_shift array. - shift &= 63; +// Precondition: (ptr != NULL) || (len == 0). +static inline const uint8_t* // +wuffs_private_impl__ptr_u8_plus_len(const uint8_t* ptr, size_t len) { + return ptr ? (ptr + len) : NULL; +} - uint32_t x_a = wuffs_base__private_implementation__hpd_left_shift[shift]; - uint32_t x_b = wuffs_base__private_implementation__hpd_left_shift[shift + 1]; - uint32_t num_new_digits = x_a >> 11; - uint32_t pow5_a = 0x7FF & x_a; - uint32_t pow5_b = 0x7FF & x_b; +// -------- - const uint8_t* pow5 = - &wuffs_base__private_implementation__powers_of_5[pow5_a]; - uint32_t i = 0; - uint32_t n = pow5_b - pow5_a; - for (; i < n; i++) { - if (i >= h->num_digits) { - return num_new_digits - 1; - } else if (h->digits[i] == pow5[i]) { - continue; - } else if (h->digits[i] < pow5[i]) { - return num_new_digits - 1; - } else { - return num_new_digits; - } +// wuffs_private_impl__slice_u8__prefix returns up to the first up_to bytes of +// s. +static inline wuffs_base__slice_u8 // +wuffs_private_impl__slice_u8__prefix(wuffs_base__slice_u8 s, uint64_t up_to) { + if (((uint64_t)(s.len)) > up_to) { + s.len = ((size_t)up_to); } - return num_new_digits; + return s; } -// -------- +// wuffs_private_impl__slice_u8__suffix returns up to the last up_to bytes of +// s. +static inline wuffs_base__slice_u8 // +wuffs_private_impl__slice_u8__suffix(wuffs_base__slice_u8 s, uint64_t up_to) { + if (((uint64_t)(s.len)) > up_to) { + s.ptr += ((uint64_t)(s.len)) - up_to; + s.len = ((size_t)up_to); + } + return s; +} -// wuffs_base__private_implementation__high_prec_dec__rounded_integer returns -// the integral (non-fractional) part of h, provided that it is 18 or fewer -// decimal digits. For 19 or more digits, it returns UINT64_MAX. Note that: -// - (1 << 53) is 9007199254740992, which has 16 decimal digits. -// - (1 << 56) is 72057594037927936, which has 17 decimal digits. -// - (1 << 59) is 576460752303423488, which has 18 decimal digits. -// - (1 << 63) is 9223372036854775808, which has 19 decimal digits. -// and that IEEE 754 double precision has 52 mantissa bits. +// wuffs_private_impl__slice_u8__copy_from_slice calls memmove(dst.ptr, +// src.ptr, len) where len is the minimum of dst.len and src.len. // -// That integral part is rounded-to-even: rounding 7.5 or 8.5 both give 8. -// -// h's negative bit is ignored: rounding -8.6 returns 9. -// -// See below for preconditions. -static uint64_t // -wuffs_base__private_implementation__high_prec_dec__rounded_integer( - wuffs_base__private_implementation__high_prec_dec* h) { - if ((h->num_digits == 0) || (h->decimal_point < 0)) { - return 0; - } else if (h->decimal_point > 18) { - return UINT64_MAX; +// Passing a wuffs_base__slice_u8 with all fields NULL or zero (a valid, empty +// slice) is valid and results in a no-op. +static inline uint64_t // +wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src) { + size_t len = dst.len < src.len ? dst.len : src.len; + if (len > 0) { + memmove(dst.ptr, src.ptr, len); } + return len; +} - uint32_t dp = (uint32_t)(h->decimal_point); - uint64_t n = 0; - uint32_t i = 0; - for (; i < dp; i++) { - n = (10 * n) + ((i < h->num_digits) ? h->digits[i] : 0); +static inline wuffs_base__empty_struct // +wuffs_private_impl__bulk_load_host_endian(void* ptr, + size_t len, + wuffs_base__slice_u8 src) { + if (len && (len <= src.len)) { + memmove(ptr, src.ptr, len); } + return wuffs_base__make_empty_struct(); +} - bool round_up = false; - if (dp < h->num_digits) { - round_up = h->digits[dp] >= 5; - if ((h->digits[dp] == 5) && (dp + 1 == h->num_digits)) { - // We are exactly halfway. If we're truncated, round up, otherwise round - // to even. - round_up = h->truncated || // - ((dp > 0) && (1 & h->digits[dp - 1])); - } - } - if (round_up) { - n++; +static inline wuffs_base__empty_struct // +wuffs_private_impl__bulk_memset(void* ptr, size_t len, uint8_t byte_value) { + if (len) { + memset(ptr, byte_value, len); } + return wuffs_base__make_empty_struct(); +} - return n; +static inline wuffs_base__empty_struct // +wuffs_private_impl__bulk_save_host_endian(void* ptr, + size_t len, + wuffs_base__slice_u8 dst) { + if (len && (len <= dst.len)) { + memmove(dst.ptr, ptr, len); + } + return wuffs_base__make_empty_struct(); } -// wuffs_base__private_implementation__high_prec_dec__small_xshift shifts h's -// number (where 'x' is 'l' or 'r' for left or right) by a small shift value. -// -// Preconditions: -// - h is non-NULL. -// - h->decimal_point is "not extreme". -// - shift is non-zero. -// - shift is "a small shift". -// -// "Not extreme" means within -// ±WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE. -// -// "A small shift" means not more than -// WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL. -// -// wuffs_base__private_implementation__high_prec_dec__rounded_integer and -// wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits -// have the same preconditions. -// -// wuffs_base__private_implementation__high_prec_dec__lshift keeps the first -// two preconditions but not the last two. Its shift argument is signed and -// does not need to be "small": zero is a no-op, positive means left shift and -// negative means right shift. +// -------- -static void // -wuffs_base__private_implementation__high_prec_dec__small_lshift( - wuffs_base__private_implementation__high_prec_dec* h, - uint32_t shift) { - if (h->num_digits == 0) { - return; +static inline wuffs_base__slice_u8 // +wuffs_private_impl__table_u8__row_u32(wuffs_base__table_u8 t, uint32_t y) { + if (t.ptr && (y < t.height)) { + return wuffs_base__make_slice_u8(t.ptr + (t.stride * y), t.width); } - uint32_t num_new_digits = - wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits( - h, shift); - uint32_t rx = h->num_digits - 1; // Read index. - uint32_t wx = h->num_digits - 1 + num_new_digits; // Write index. - uint64_t n = 0; + return wuffs_base__empty_slice_u8(); +} - // Repeat: pick up a digit, put down a digit, right to left. - while (((int32_t)rx) >= 0) { - n += ((uint64_t)(h->digits[rx])) << shift; - uint64_t quo = n / 10; - uint64_t rem = n - (10 * quo); - if (wx < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { - h->digits[wx] = (uint8_t)rem; - } else if (rem > 0) { - h->truncated = true; - } - n = quo; - wx--; - rx--; - } +// ---------------- Slices and Tables (Utility) - // Put down leading digits, right to left. - while (n > 0) { - uint64_t quo = n / 10; - uint64_t rem = n - (10 * quo); - if (wx < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { - h->digits[wx] = (uint8_t)rem; - } else if (rem > 0) { - h->truncated = true; - } - n = quo; - wx--; - } +#define wuffs_base__utility__empty_slice_u8 wuffs_base__empty_slice_u8 - // Finish. - h->num_digits += num_new_digits; - if (h->num_digits > - WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { - h->num_digits = WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION; - } - h->decimal_point += (int32_t)num_new_digits; - wuffs_base__private_implementation__high_prec_dec__trim(h); +// ---------------- Ranges and Rects + +static inline uint32_t // +wuffs_private_impl__range_ii_u32__get_min_incl( + const wuffs_base__range_ii_u32* r) { + return r->min_incl; } -static void // -wuffs_base__private_implementation__high_prec_dec__small_rshift( - wuffs_base__private_implementation__high_prec_dec* h, - uint32_t shift) { - uint32_t rx = 0; // Read index. - uint32_t wx = 0; // Write index. - uint64_t n = 0; +static inline uint32_t // +wuffs_private_impl__range_ii_u32__get_max_incl( + const wuffs_base__range_ii_u32* r) { + return r->max_incl; +} - // Pick up enough leading digits to cover the first shift. - while ((n >> shift) == 0) { - if (rx < h->num_digits) { - // Read a digit. - n = (10 * n) + h->digits[rx++]; - } else if (n == 0) { - // h's number used to be zero and remains zero. - return; - } else { - // Read sufficient implicit trailing zeroes. - while ((n >> shift) == 0) { - n = 10 * n; - rx++; - } - break; - } - } - h->decimal_point -= ((int32_t)(rx - 1)); - if (h->decimal_point < - -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { - // After the shift, h's number is effectively zero. - h->num_digits = 0; - h->decimal_point = 0; - h->truncated = false; - return; - } +static inline uint32_t // +wuffs_private_impl__range_ie_u32__get_min_incl( + const wuffs_base__range_ie_u32* r) { + return r->min_incl; +} - // Repeat: pick up a digit, put down a digit, left to right. - uint64_t mask = (((uint64_t)(1)) << shift) - 1; - while (rx < h->num_digits) { - uint8_t new_digit = ((uint8_t)(n >> shift)); - n = (10 * (n & mask)) + h->digits[rx++]; - h->digits[wx++] = new_digit; - } +static inline uint32_t // +wuffs_private_impl__range_ie_u32__get_max_excl( + const wuffs_base__range_ie_u32* r) { + return r->max_excl; +} - // Put down trailing digits, left to right. - while (n > 0) { - uint8_t new_digit = ((uint8_t)(n >> shift)); - n = 10 * (n & mask); - if (wx < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { - h->digits[wx++] = new_digit; - } else if (new_digit > 0) { - h->truncated = true; - } - } +static inline uint64_t // +wuffs_private_impl__range_ii_u64__get_min_incl( + const wuffs_base__range_ii_u64* r) { + return r->min_incl; +} - // Finish. - h->num_digits = wx; - wuffs_base__private_implementation__high_prec_dec__trim(h); +static inline uint64_t // +wuffs_private_impl__range_ii_u64__get_max_incl( + const wuffs_base__range_ii_u64* r) { + return r->max_incl; } -static void // -wuffs_base__private_implementation__high_prec_dec__lshift( - wuffs_base__private_implementation__high_prec_dec* h, - int32_t shift) { - if (shift > 0) { - while (shift > +WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL) { - wuffs_base__private_implementation__high_prec_dec__small_lshift( - h, WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL); - shift -= WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; - } - wuffs_base__private_implementation__high_prec_dec__small_lshift( - h, ((uint32_t)(+shift))); - } else if (shift < 0) { - while (shift < -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL) { - wuffs_base__private_implementation__high_prec_dec__small_rshift( - h, WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL); - shift += WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; - } - wuffs_base__private_implementation__high_prec_dec__small_rshift( - h, ((uint32_t)(-shift))); - } +static inline uint64_t // +wuffs_private_impl__range_ie_u64__get_min_incl( + const wuffs_base__range_ie_u64* r) { + return r->min_incl; } -// -------- +static inline uint64_t // +wuffs_private_impl__range_ie_u64__get_max_excl( + const wuffs_base__range_ie_u64* r) { + return r->max_excl; +} -// wuffs_base__private_implementation__high_prec_dec__round_etc rounds h's -// number. For those functions that take an n argument, rounding produces at -// most n digits (which is not necessarily at most n decimal places). Negative -// n values are ignored, as well as any n greater than or equal to h's number -// of digits. The etc__round_just_enough function implicitly chooses an n to -// implement WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION. -// -// Preconditions: -// - h is non-NULL. -// - h->decimal_point is "not extreme". -// -// "Not extreme" means within -// ±WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE. +// ---------------- Ranges and Rects (Utility) -static void // -wuffs_base__private_implementation__high_prec_dec__round_down( - wuffs_base__private_implementation__high_prec_dec* h, - int32_t n) { - if ((n < 0) || (h->num_digits <= (uint32_t)n)) { - return; +#define wuffs_base__utility__empty_range_ii_u32 wuffs_base__empty_range_ii_u32 +#define wuffs_base__utility__empty_range_ie_u32 wuffs_base__empty_range_ie_u32 +#define wuffs_base__utility__empty_range_ii_u64 wuffs_base__empty_range_ii_u64 +#define wuffs_base__utility__empty_range_ie_u64 wuffs_base__empty_range_ie_u64 +#define wuffs_base__utility__empty_rect_ii_u32 wuffs_base__empty_rect_ii_u32 +#define wuffs_base__utility__empty_rect_ie_u32 wuffs_base__empty_rect_ie_u32 +#define wuffs_base__utility__make_range_ii_u32 wuffs_base__make_range_ii_u32 +#define wuffs_base__utility__make_range_ie_u32 wuffs_base__make_range_ie_u32 +#define wuffs_base__utility__make_range_ii_u64 wuffs_base__make_range_ii_u64 +#define wuffs_base__utility__make_range_ie_u64 wuffs_base__make_range_ie_u64 +#define wuffs_base__utility__make_rect_ii_u32 wuffs_base__make_rect_ii_u32 +#define wuffs_base__utility__make_rect_ie_u32 wuffs_base__make_rect_ie_u32 + +// ---------------- I/O + +static inline uint64_t // +wuffs_private_impl__io__count_since(uint64_t mark, uint64_t index) { + if (index >= mark) { + return index - mark; } - h->num_digits = (uint32_t)(n); - wuffs_base__private_implementation__high_prec_dec__trim(h); + return 0; } -static void // -wuffs_base__private_implementation__high_prec_dec__round_up( - wuffs_base__private_implementation__high_prec_dec* h, - int32_t n) { - if ((n < 0) || (h->num_digits <= (uint32_t)n)) { - return; +// TODO: drop the "const" in "const uint8_t* ptr". Some though required about +// the base.io_reader.since method returning a mutable "slice base.u8". +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wcast-qual" +#endif +static inline wuffs_base__slice_u8 // +wuffs_private_impl__io__since(uint64_t mark, + uint64_t index, + const uint8_t* ptr) { + if (index >= mark) { + return wuffs_base__make_slice_u8(((uint8_t*)ptr) + mark, + ((size_t)(index - mark))); } + return wuffs_base__empty_slice_u8(); +} +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif - for (n--; n >= 0; n--) { - if (h->digits[n] < 9) { - h->digits[n]++; - h->num_digits = (uint32_t)(n + 1); - return; - } - } +// -------- - // The number is all 9s. Change to a single 1 and adjust the decimal point. - h->digits[0] = 1; - h->num_digits = 1; - h->decimal_point++; +static inline void // +wuffs_private_impl__io_reader__limit(const uint8_t** ptr_io2_r, + const uint8_t* iop_r, + uint64_t limit) { + if (((uint64_t)(*ptr_io2_r - iop_r)) > limit) { + *ptr_io2_r = iop_r + limit; + } } -static void // -wuffs_base__private_implementation__high_prec_dec__round_nearest( - wuffs_base__private_implementation__high_prec_dec* h, - int32_t n) { - if ((n < 0) || (h->num_digits <= (uint32_t)n)) { - return; +static inline uint32_t // +wuffs_private_impl__io_reader__limited_copy_u32_to_slice( + const uint8_t** ptr_iop_r, + const uint8_t* io2_r, + uint32_t length, + wuffs_base__slice_u8 dst) { + const uint8_t* iop_r = *ptr_iop_r; + size_t n = dst.len; + if (n > length) { + n = length; } - bool up = h->digits[n] >= 5; - if ((h->digits[n] == 5) && ((n + 1) == ((int32_t)(h->num_digits)))) { - up = h->truncated || // - ((n > 0) && ((h->digits[n - 1] & 1) != 0)); + if (n > ((size_t)(io2_r - iop_r))) { + n = (size_t)(io2_r - iop_r); } - - if (up) { - wuffs_base__private_implementation__high_prec_dec__round_up(h, n); - } else { - wuffs_base__private_implementation__high_prec_dec__round_down(h, n); + if (n > 0) { + memmove(dst.ptr, iop_r, n); + *ptr_iop_r += n; } + return (uint32_t)(n); } -static void // -wuffs_base__private_implementation__high_prec_dec__round_just_enough( - wuffs_base__private_implementation__high_prec_dec* h, - int32_t exp2, - uint64_t mantissa) { - // The magic numbers 52 and 53 in this function are because IEEE 754 double - // precision has 52 mantissa bits. - // - // Let f be the floating point number represented by exp2 and mantissa (and - // also the number in h): the number (mantissa * (2 ** (exp2 - 52))). - // - // If f is zero or a small integer, we can return early. - if ((mantissa == 0) || - ((exp2 < 53) && (h->decimal_point >= ((int32_t)(h->num_digits))))) { - return; +// wuffs_private_impl__io_reader__match7 returns whether the io_reader's +// upcoming bytes start with the given prefix (up to 7 bytes long). It is +// peek-like, not read-like, in that there are no side-effects. +// +// The low 3 bits of a hold the prefix length, n. +// +// The high 56 bits of a hold the prefix itself, in little-endian order. The +// first prefix byte is in bits 8..=15, the second prefix byte is in bits +// 16..=23, etc. The high (8 * (7 - n)) bits are ignored. +// +// There are three possible return values: +// - 0 means success. +// - 1 means inconclusive, equivalent to "$short read". +// - 2 means failure. +static inline uint32_t // +wuffs_private_impl__io_reader__match7(const uint8_t* iop_r, + const uint8_t* io2_r, + wuffs_base__io_buffer* r, + uint64_t a) { + uint32_t n = a & 7; + a >>= 8; + if ((io2_r - iop_r) >= 8) { + uint64_t x = wuffs_base__peek_u64le__no_bounds_check(iop_r); + uint32_t shift = 8 * (8 - n); + return ((a << shift) == (x << shift)) ? 0 : 2; + } + for (; n > 0; n--) { + if (iop_r >= io2_r) { + return (r && r->meta.closed) ? 2 : 1; + } else if (*iop_r != ((uint8_t)(a))) { + return 2; + } + iop_r++; + a >>= 8; } + return 0; +} - // The smallest normal f has an exp2 of -1022 and a mantissa of (1 << 52). - // Subnormal numbers have the same exp2 but a smaller mantissa. - static const int32_t min_incl_normal_exp2 = -1022; - static const uint64_t min_incl_normal_mantissa = 0x0010000000000000ul; +static inline wuffs_base__io_buffer* // +wuffs_private_impl__io_reader__set(wuffs_base__io_buffer* b, + const uint8_t** ptr_iop_r, + const uint8_t** ptr_io0_r, + const uint8_t** ptr_io1_r, + const uint8_t** ptr_io2_r, + wuffs_base__slice_u8 data, + uint64_t history_position) { + b->data = data; + b->meta.wi = data.len; + b->meta.ri = 0; + b->meta.pos = history_position; + b->meta.closed = false; - // Compute lower and upper bounds such that any number between them (possibly - // inclusive) will round to f. First, the lower bound. Our number f is: - // ((mantissa + 0) * (2 ** ( exp2 - 52))) - // - // The next lowest floating point number is: - // ((mantissa - 1) * (2 ** ( exp2 - 52))) - // unless (mantissa - 1) drops the (1 << 52) bit and exp2 is not the - // min_incl_normal_exp2. Either way, call it: - // ((l_mantissa) * (2 ** (l_exp2 - 52))) - // - // The lower bound is halfway between them (noting that 52 became 53): - // (((2 * l_mantissa) + 1) * (2 ** (l_exp2 - 53))) - int32_t l_exp2 = exp2; - uint64_t l_mantissa = mantissa - 1; - if ((exp2 > min_incl_normal_exp2) && (mantissa <= min_incl_normal_mantissa)) { - l_exp2 = exp2 - 1; - l_mantissa = (2 * mantissa) - 1; - } - wuffs_base__private_implementation__high_prec_dec lower; - wuffs_base__private_implementation__high_prec_dec__assign( - &lower, (2 * l_mantissa) + 1, false); - wuffs_base__private_implementation__high_prec_dec__lshift(&lower, - l_exp2 - 53); + *ptr_iop_r = data.ptr; + *ptr_io0_r = data.ptr; + *ptr_io1_r = data.ptr; + *ptr_io2_r = data.ptr + data.len; - // Next, the upper bound. Our number f is: - // ((mantissa + 0) * (2 ** (exp2 - 52))) - // - // The next highest floating point number is: - // ((mantissa + 1) * (2 ** (exp2 - 52))) - // - // The upper bound is halfway between them (noting that 52 became 53): - // (((2 * mantissa) + 1) * (2 ** (exp2 - 53))) - wuffs_base__private_implementation__high_prec_dec upper; - wuffs_base__private_implementation__high_prec_dec__assign( - &upper, (2 * mantissa) + 1, false); - wuffs_base__private_implementation__high_prec_dec__lshift(&upper, exp2 - 53); + return b; +} - // The lower and upper bounds are possible outputs only if the original - // mantissa is even, so that IEEE round-to-even would round to the original - // mantissa and not its neighbors. - bool inclusive = (mantissa & 1) == 0; +// -------- - // As we walk the digits, we want to know whether rounding up would fall - // within the upper bound. This is tracked by upper_delta: - // - When -1, the digits of h and upper are the same so far. - // - When +0, we saw a difference of 1 between h and upper on a previous - // digit and subsequently only 9s for h and 0s for upper. Thus, rounding - // up may fall outside of the bound if !inclusive. - // - When +1, the difference is greater than 1 and we know that rounding up - // falls within the bound. - // - // This is a state machine with three states. The numerical value for each - // state (-1, +0 or +1) isn't important, other than their order. - int upper_delta = -1; +static inline uint64_t // +wuffs_private_impl__io_writer__copy_from_slice(uint8_t** ptr_iop_w, + uint8_t* io2_w, + wuffs_base__slice_u8 src) { + uint8_t* iop_w = *ptr_iop_w; + size_t n = src.len; + if (n > ((size_t)(io2_w - iop_w))) { + n = (size_t)(io2_w - iop_w); + } + if (n > 0) { + memmove(iop_w, src.ptr, n); + *ptr_iop_w += n; + } + return (uint64_t)(n); +} - // We can now figure out the shortest number of digits required. Walk the - // digits until h has distinguished itself from lower or upper. - // - // The zi and zd variables are indexes and digits, for z in l (lower), h (the - // number) and u (upper). +static inline void // +wuffs_private_impl__io_writer__limit(uint8_t** ptr_io2_w, + uint8_t* iop_w, + uint64_t limit) { + if (((uint64_t)(*ptr_io2_w - iop_w)) > limit) { + *ptr_io2_w = iop_w + limit; + } +} + +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + if (!distance) { + return 0; + } + uint8_t* p = *ptr_iop_w; + if ((size_t)(p - io0_w) < (size_t)(distance)) { + return 0; + } + uint8_t* q = p - distance; + size_t n = (size_t)(io2_w - p); + if ((size_t)(length) > n) { + length = (uint32_t)(n); + } else { + n = (size_t)(length); + } + // TODO: unrolling by 3 seems best for the std/deflate benchmarks, but that + // is mostly because 3 is the minimum length for the deflate format. This + // function implementation shouldn't overfit to that one format. Perhaps the + // limited_copy_u32_from_history Wuffs method should also take an unroll hint + // argument, and the cgen can look if that argument is the constant + // expression '3'. // - // The lower, h and upper numbers may have their decimal points at different - // places. In this case, upper is the longest, so we iterate ui starting from - // 0 and iterate li and hi starting from either 0 or -1. - int32_t ui = 0; - for (;; ui++) { - // Calculate hd, the middle number's digit. - int32_t hi = ui - upper.decimal_point + h->decimal_point; - if (hi >= ((int32_t)(h->num_digits))) { - break; - } - uint8_t hd = (((uint32_t)hi) < h->num_digits) ? h->digits[hi] : 0; + // See also wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast + // below. + for (; n >= 3; n -= 3) { + *p++ = *q++; + *p++ = *q++; + *p++ = *q++; + } + for (; n; n--) { + *p++ = *q++; + } + *ptr_iop_w = p; + return length; +} - // Calculate ld, the lower bound's digit. - int32_t li = ui - upper.decimal_point + lower.decimal_point; - uint8_t ld = (((uint32_t)li) < lower.num_digits) ? lower.digits[li] : 0; +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast is like +// the wuffs_private_impl__io_writer__limited_copy_u32_from_history function +// above, but has stronger pre-conditions. +// +// The caller needs to prove that: +// - length >= 1 +// - length <= (io2_w - *ptr_iop_w) +// - distance >= 1 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint32_t n = length; + for (; n >= 3; n -= 3) { + *p++ = *q++; + *p++ = *q++; + *p++ = *q++; + } + for (; n; n--) { + *p++ = *q++; + } + *ptr_iop_w = p; + return length; +} - // We can round down (truncate) if lower has a different digit than h or if - // lower is inclusive and is exactly the result of rounding down (i.e. we - // have reached the final digit of lower). - bool can_round_down = - (ld != hd) || // - (inclusive && ((li + 1) == ((int32_t)(lower.num_digits)))); +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp +// is like the +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast function, +// but also returns the cusp: a byte pair (as a u16le) being the last byte of +// and next byte after the copied history. +// +// For example, if history was [10, 11, 12, 13, 14, 15, 16, 17, 18] then: +// - copying l=3, d=8 produces [11, 12, 13] and the cusp is (13, 14). +// - copying l=3, d=2 produces [17, 18, 17] and the cusp is (17, 18). +// +// The caller needs to prove that: +// - length >= 1 +// - length <= (io2_w - *ptr_iop_w) +// - distance >= 1 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint32_t n = length; + for (; n >= 3; n -= 3) { + *p++ = *q++; + *p++ = *q++; + *p++ = *q++; + } + for (; n; n--) { + *p++ = *q++; + } + *ptr_iop_w = p; + return (uint32_t)wuffs_base__peek_u16le__no_bounds_check(q - 1); +} - // Calculate ud, the upper bound's digit, and update upper_delta. - uint8_t ud = (((uint32_t)ui) < upper.num_digits) ? upper.digits[ui] : 0; - if (upper_delta < 0) { - if ((hd + 1) < ud) { - // For example: - // h = 12345??? - // upper = 12347??? - upper_delta = +1; - } else if (hd != ud) { - // For example: - // h = 12345??? - // upper = 12346??? - upper_delta = +0; - } - } else if (upper_delta == 0) { - if ((hd != 9) || (ud != 0)) { - // For example: - // h = 1234598? - // upper = 1234600? - upper_delta = +1; - } +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast +// copies the previous byte (the one immediately before *ptr_iop_w), copying 8 +// byte chunks at a time. Each chunk contains 8 repetitions of the same byte. +// +// In terms of number of bytes copied, length is rounded up to a multiple of 8. +// As a special case, a zero length rounds up to 8 (even though 0 is already a +// multiple of 8), since there is always at least one 8 byte chunk copied. +// +// In terms of advancing *ptr_iop_w, length is not rounded up. +// +// The caller needs to prove that: +// - length >= 1 +// - (length + 8) <= (io2_w - *ptr_iop_w) +// - distance == 1 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint64_t x = p[-1]; + x |= x << 8; + x |= x << 16; + x |= x << 32; + uint32_t n = length; + while (1) { + wuffs_base__poke_u64le__no_bounds_check(p, x); + if (n <= 8) { + p += n; + break; } + p += 8; + n -= 8; + } + *ptr_iop_w = p; + return length; +} - // We can round up if upper has a different digit than h and either upper - // is inclusive or upper is bigger than the result of rounding up. - bool can_round_up = - (upper_delta > 0) || // - ((upper_delta == 0) && // - (inclusive || ((ui + 1) < ((int32_t)(upper.num_digits))))); - - // If we can round either way, round to nearest. If we can round only one - // way, do it. If we can't round, continue the loop. - if (can_round_down) { - if (can_round_up) { - wuffs_base__private_implementation__high_prec_dec__round_nearest( - h, hi + 1); - return; - } else { - wuffs_base__private_implementation__high_prec_dec__round_down(h, - hi + 1); - return; - } - } else { - if (can_round_up) { - wuffs_base__private_implementation__high_prec_dec__round_up(h, hi + 1); - return; - } +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast_return_cusp +// copies the previous byte (the one immediately before *ptr_iop_w), copying 8 +// byte chunks at a time. Each chunk contains 8 repetitions of the same byte. +// It also returns the cusp: a byte pair (as a u16le) being the last byte of +// and next byte after the copied history. +// +// In terms of number of bytes copied, length is rounded up to a multiple of 8. +// As a special case, a zero length rounds up to 8 (even though 0 is already a +// multiple of 8), since there is always at least one 8 byte chunk copied. +// +// In terms of advancing *ptr_iop_w, length is not rounded up. +// +// The caller needs to prove that: +// - length >= 1 +// - (length + 8) <= (io2_w - *ptr_iop_w) +// - distance == 1 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast_return_cusp( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint64_t x = p[-1]; + x |= x << 8; + x |= x << 16; + x |= x << 32; + uint32_t n = length; + while (1) { + wuffs_base__poke_u64le__no_bounds_check(p, x); + if (n <= 8) { + p += n; + q += n; + break; } + p += 8; + q += 8; + n -= 8; } + *ptr_iop_w = p; + return (uint32_t)wuffs_base__peek_u16le__no_bounds_check(q - 1); } -// -------- - -// wuffs_base__private_implementation__parse_number_f64_eisel_lemire produces -// the IEEE 754 double-precision value for an exact mantissa and base-10 -// exponent. For example: -// - when parsing "12345.678e+02", man is 12345678 and exp10 is -1. -// - when parsing "-12", man is 12 and exp10 is 0. Processing the leading -// minus sign is the responsibility of the caller, not this function. +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast +// is like the +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast function +// above, but copies 8 byte chunks at a time. // -// On success, it returns a non-negative int64_t such that the low 63 bits hold -// the 11-bit exponent and 52-bit mantissa. +// In terms of number of bytes copied, length is rounded up to a multiple of 8. +// As a special case, a zero length rounds up to 8 (even though 0 is already a +// multiple of 8), since there is always at least one 8 byte chunk copied. // -// On failure, it returns a negative value. +// In terms of advancing *ptr_iop_w, length is not rounded up. // -// The algorithm is based on an original idea by Michael Eisel that was refined -// by Daniel Lemire. See -// https://lemire.me/blog/2020/03/10/fast-float-parsing-in-practice/ -// and -// https://nigeltao.github.io/blog/2020/eisel-lemire.html +// The caller needs to prove that: +// - length >= 1 +// - (length + 8) <= (io2_w - *ptr_iop_w) +// - distance >= 8 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint32_t n = length; + while (1) { + memcpy(p, q, 8); + if (n <= 8) { + p += n; + break; + } + p += 8; + q += 8; + n -= 8; + } + *ptr_iop_w = p; + return length; +} + +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast_return_cusp +// is like the +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast function +// above, but copies 8 byte chunks at a time. It also returns the cusp: a byte +// pair (as a u16le) being the last byte of and next byte after the copied +// history. // -// Preconditions: -// - man is non-zero. -// - exp10 is in the range [-307 ..= 288], the same range of the -// wuffs_base__private_implementation__powers_of_10 array. +// In terms of number of bytes copied, length is rounded up to a multiple of 8. +// As a special case, a zero length rounds up to 8 (even though 0 is already a +// multiple of 8), since there is always at least one 8 byte chunk copied. // -// The exp10 range (and the fact that man is in the range [1 ..= UINT64_MAX], -// approximately [1 ..= 1.85e+19]) means that (man * (10 ** exp10)) is in the -// range [1e-307 ..= 1.85e+307]. This is entirely within the range of normal -// (neither subnormal nor non-finite) f64 values: DBL_MIN and DBL_MAX are -// approximately 2.23e–308 and 1.80e+308. -static int64_t // -wuffs_base__private_implementation__parse_number_f64_eisel_lemire( - uint64_t man, - int32_t exp10) { - // Look up the (possibly truncated) base-2 representation of (10 ** exp10). - // The look-up table was constructed so that it is already normalized: the - // table entry's mantissa's MSB (most significant bit) is on. - const uint64_t* po10 = - &wuffs_base__private_implementation__powers_of_10[exp10 + 307][0]; +// In terms of advancing *ptr_iop_w, length is not rounded up. +// +// The caller needs to prove that: +// - length >= 1 +// - (length + 8) <= (io2_w - *ptr_iop_w) +// - distance >= 8 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast_return_cusp( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint32_t n = length; + while (1) { + memcpy(p, q, 8); + if (n <= 8) { + p += n; + q += n; + break; + } + p += 8; + q += 8; + n -= 8; + } + *ptr_iop_w = p; + return (uint32_t)wuffs_base__peek_u16le__no_bounds_check(q - 1); +} - // Normalize the man argument. The (man != 0) precondition means that a - // non-zero bit exists. - uint32_t clz = wuffs_base__count_leading_zeroes_u64(man); - man <<= clz; +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_reader( + uint8_t** ptr_iop_w, + uint8_t* io2_w, + uint32_t length, + const uint8_t** ptr_iop_r, + const uint8_t* io2_r) { + uint8_t* iop_w = *ptr_iop_w; + size_t n = length; + if (n > ((size_t)(io2_w - iop_w))) { + n = (size_t)(io2_w - iop_w); + } + const uint8_t* iop_r = *ptr_iop_r; + if (n > ((size_t)(io2_r - iop_r))) { + n = (size_t)(io2_r - iop_r); + } + if (n > 0) { + memmove(iop_w, iop_r, n); + *ptr_iop_w += n; + *ptr_iop_r += n; + } + return (uint32_t)(n); +} - // Calculate the return value's base-2 exponent. We might tweak it by ±1 - // later, but its initial value comes from a linear scaling of exp10, - // converting from power-of-10 to power-of-2, and adjusting by clz. - // - // The magic constants are: - // - 1087 = 1023 + 64. The 1023 is the f64 exponent bias. The 64 is because - // the look-up table uses 64-bit mantissas. - // - 217706 is such that the ratio 217706 / 65536 ≈ 3.321930 is close enough - // (over the practical range of exp10) to log(10) / log(2) ≈ 3.321928. - // - 65536 = 1<<16 is arbitrary but a power of 2, so division is a shift. - // - // Equality of the linearly-scaled value and the actual power-of-2, over the - // range of exp10 arguments that this function accepts, is confirmed by - // script/print-mpb-powers-of-10.go - uint64_t ret_exp2 = - ((uint64_t)(((217706 * exp10) >> 16) + 1087)) - ((uint64_t)clz); +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + uint8_t** ptr_iop_w, + uint8_t* io2_w, + uint32_t length, + wuffs_base__slice_u8 src) { + uint8_t* iop_w = *ptr_iop_w; + size_t n = src.len; + if (n > length) { + n = length; + } + if (n > ((size_t)(io2_w - iop_w))) { + n = (size_t)(io2_w - iop_w); + } + if (n > 0) { + memmove(iop_w, src.ptr, n); + *ptr_iop_w += n; + } + return (uint32_t)(n); +} - // Multiply the two mantissas. Normalization means that both mantissas are at - // least (1<<63), so the 128-bit product must be at least (1<<126). The high - // 64 bits of the product, x_hi, must therefore be at least (1<<62). - // - // As a consequence, x_hi has either 0 or 1 leading zeroes. Shifting x_hi - // right by either 9 or 10 bits (depending on x_hi's MSB) will therefore - // leave the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. - wuffs_base__multiply_u64__output x = wuffs_base__multiply_u64(man, po10[1]); - uint64_t x_hi = x.hi; - uint64_t x_lo = x.lo; +static inline wuffs_base__io_buffer* // +wuffs_private_impl__io_writer__set(wuffs_base__io_buffer* b, + uint8_t** ptr_iop_w, + uint8_t** ptr_io0_w, + uint8_t** ptr_io1_w, + uint8_t** ptr_io2_w, + wuffs_base__slice_u8 data, + uint64_t history_position) { + b->data = data; + b->meta.wi = 0; + b->meta.ri = 0; + b->meta.pos = history_position; + b->meta.closed = false; - // Before we shift right by at least 9 bits, recall that the look-up table - // entry was possibly truncated. We have so far only calculated a lower bound - // for the product (man * e), where e is (10 ** exp10). The upper bound would - // add a further (man * 1) to the 128-bit product, which overflows the lower - // 64-bit limb if ((x_lo + man) < man). - // - // If overflow occurs, that adds 1 to x_hi. Since we're about to shift right - // by at least 9 bits, that carried 1 can be ignored unless the higher 64-bit - // limb's low 9 bits are all on. - // - // For example, parsing "9999999999999999999" will take the if-true branch - // here, since: - // - x_hi = 0x4563918244F3FFFF - // - x_lo = 0x8000000000000000 - // - man = 0x8AC7230489E7FFFF - if (((x_hi & 0x1FF) == 0x1FF) && ((x_lo + man) < man)) { - // Refine our calculation of (man * e). Before, our approximation of e used - // a "low resolution" 64-bit mantissa. Now use a "high resolution" 128-bit - // mantissa. We've already calculated x = (man * bits_0_to_63_incl_of_e). - // Now calculate y = (man * bits_64_to_127_incl_of_e). - wuffs_base__multiply_u64__output y = wuffs_base__multiply_u64(man, po10[0]); - uint64_t y_hi = y.hi; - uint64_t y_lo = y.lo; + *ptr_iop_w = data.ptr; + *ptr_io0_w = data.ptr; + *ptr_io1_w = data.ptr; + *ptr_io2_w = data.ptr + data.len; - // Merge the 128-bit x and 128-bit y, which overlap by 64 bits, to - // calculate the 192-bit product of the 64-bit man by the 128-bit e. - // As we exit this if-block, we only care about the high 128 bits - // (merged_hi and merged_lo) of that 192-bit product. - // - // For example, parsing "1.234e-45" will take the if-true branch here, - // since: - // - x_hi = 0x70B7E3696DB29FFF - // - x_lo = 0xE040000000000000 - // - y_hi = 0x33718BBEAB0E0D7A - // - y_lo = 0xA880000000000000 - uint64_t merged_hi = x_hi; - uint64_t merged_lo = x_lo + y_hi; - if (merged_lo < x_lo) { - merged_hi++; // Carry the overflow bit. - } + return b; +} - // The "high resolution" approximation of e is still a lower bound. Once - // again, see if the upper bound is large enough to produce a different - // result. This time, if it does, give up instead of reaching for an even - // more precise approximation to e. - // - // This three-part check is similar to the two-part check that guarded the - // if block that we're now in, but it has an extra term for the middle 64 - // bits (checking that adding 1 to merged_lo would overflow). - // - // For example, parsing "5.9604644775390625e-8" will take the if-true - // branch here, since: - // - merged_hi = 0x7FFFFFFFFFFFFFFF - // - merged_lo = 0xFFFFFFFFFFFFFFFF - // - y_lo = 0x4DB3FFC120988200 - // - man = 0xD3C21BCECCEDA100 - if (((merged_hi & 0x1FF) == 0x1FF) && ((merged_lo + 1) == 0) && - (y_lo + man < man)) { - return -1; - } +// ---------------- I/O (Utility) - // Replace the 128-bit x with merged. - x_hi = merged_hi; - x_lo = merged_lo; - } +#define wuffs_base__utility__empty_io_reader wuffs_base__empty_io_reader +#define wuffs_base__utility__empty_io_writer wuffs_base__empty_io_writer - // As mentioned above, shifting x_hi right by either 9 or 10 bits will leave - // the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. If the - // MSB (before shifting) was on, adjust ret_exp2 for the larger shift. - // - // Having bit 53 on (and higher bits off) means that ret_mantissa is a 54-bit - // number. - uint64_t msb = x_hi >> 63; - uint64_t ret_mantissa = x_hi >> (msb + 9); - ret_exp2 -= 1 ^ msb; +// ---------------- Tokens - // IEEE 754 rounds to-nearest with ties rounded to-even. Rounding to-even can - // be tricky. If we're half-way between two exactly representable numbers - // (x's low 73 bits are zero and the next 2 bits that matter are "01"), give - // up instead of trying to pick the winner. - // - // Technically, we could tighten the condition by changing "73" to "73 or 74, - // depending on msb", but a flat "73" is simpler. - // - // For example, parsing "1e+23" will take the if-true branch here, since: - // - x_hi = 0x54B40B1F852BDA00 - // - ret_mantissa = 0x002A5A058FC295ED - if ((x_lo == 0) && ((x_hi & 0x1FF) == 0) && ((ret_mantissa & 3) == 1)) { - return -1; - } +// ---------------- Tokens (Utility) - // If we're not halfway then it's rounding to-nearest. Starting with a 54-bit - // number, carry the lowest bit (bit 0) up if it's on. Regardless of whether - // it was on or off, shifting right by one then produces a 53-bit number. If - // carrying up overflowed, shift again. - ret_mantissa += ret_mantissa & 1; - ret_mantissa >>= 1; - // This if block is equivalent to (but benchmarks slightly faster than) the - // following branchless form: - // uint64_t overflow_adjustment = ret_mantissa >> 53; - // ret_mantissa >>= overflow_adjustment; - // ret_exp2 += overflow_adjustment; - // - // For example, parsing "7.2057594037927933e+16" will take the if-true - // branch here, since: - // - x_hi = 0x7FFFFFFFFFFFFE80 - // - ret_mantissa = 0x0020000000000000 - if ((ret_mantissa >> 53) > 0) { - ret_mantissa >>= 1; - ret_exp2++; - } +// ---------------- Memory Allocation - // Starting with a 53-bit number, IEEE 754 double-precision normal numbers - // have an implicit mantissa bit. Mask that away and keep the low 52 bits. - ret_mantissa &= 0x000FFFFFFFFFFFFF; +// ---------------- Images - // Pack the bits and return. - return ((int64_t)(ret_mantissa | (ret_exp2 << 52))); -} +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( + const wuffs_base__pixel_swizzler* p, + uint32_t up_to_num_pixels, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + const uint8_t** ptr_iop_r, + const uint8_t* io2_r); -// -------- +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( + const wuffs_base__pixel_swizzler* p, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + const uint8_t** ptr_iop_r, + const uint8_t* io2_r); -static wuffs_base__result_f64 // -wuffs_base__private_implementation__parse_number_f64_special( - wuffs_base__slice_u8 s, - uint32_t options) { - do { - if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { - goto fail; - } +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black( + const wuffs_base__pixel_swizzler* p, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + uint64_t num_pixels); - uint8_t* p = s.ptr; - uint8_t* q = s.ptr + s.len; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status // +wuffs_base__pixel_swizzler__swizzle_ycck( + const wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_buffer* dst, + wuffs_base__slice_u8 dst_palette, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, + wuffs_base__slice_u8 src0, + wuffs_base__slice_u8 src1, + wuffs_base__slice_u8 src2, + wuffs_base__slice_u8 src3, + uint32_t width0, + uint32_t width1, + uint32_t width2, + uint32_t width3, + uint32_t height0, + uint32_t height1, + uint32_t height2, + uint32_t height3, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t stride3, + uint8_t h0, + uint8_t h1, + uint8_t h2, + uint8_t h3, + uint8_t v0, + uint8_t v1, + uint8_t v2, + uint8_t v3, + bool is_rgb_or_cmyk, + bool triangle_filter_for_2to1, + wuffs_base__slice_u8 scratch_buffer_2k); - for (; (p < q) && (*p == '_'); p++) { - } - if (p >= q) { - goto fail; - } +// ---------------- Images (Utility) - // Parse sign. - bool negative = false; - do { - if (*p == '+') { - p++; - } else if (*p == '-') { - negative = true; - p++; - } else { - break; - } - for (; (p < q) && (*p == '_'); p++) { - } - } while (0); - if (p >= q) { - goto fail; - } +#define wuffs_base__utility__make_pixel_format wuffs_base__make_pixel_format - bool nan = false; - switch (p[0]) { - case 'I': - case 'i': - if (((q - p) < 3) || // - ((p[1] != 'N') && (p[1] != 'n')) || // - ((p[2] != 'F') && (p[2] != 'f'))) { - goto fail; - } - p += 3; +// ---------------- String Conversions - if ((p >= q) || (*p == '_')) { - break; - } else if (((q - p) < 5) || // - ((p[0] != 'I') && (p[0] != 'i')) || // - ((p[1] != 'N') && (p[1] != 'n')) || // - ((p[2] != 'I') && (p[2] != 'i')) || // - ((p[3] != 'T') && (p[3] != 't')) || // - ((p[4] != 'Y') && (p[4] != 'y'))) { - goto fail; - } - p += 5; +// ---------------- Unicode and UTF-8 - if ((p >= q) || (*p == '_')) { - break; - } - goto fail; +// ---------------- - case 'N': - case 'n': - if (((q - p) < 3) || // - ((p[1] != 'A') && (p[1] != 'a')) || // - ((p[2] != 'N') && (p[2] != 'n'))) { - goto fail; - } - p += 3; +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__CORE) - if ((p >= q) || (*p == '_')) { - nan = true; - break; - } - goto fail; +const uint8_t wuffs_private_impl__low_bits_mask__u8[8] = { + 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, +}; - default: - goto fail; - } +const uint16_t wuffs_private_impl__low_bits_mask__u16[16] = { + 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, + 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, +}; - // Finish. - for (; (p < q) && (*p == '_'); p++) { - } - if (p != q) { - goto fail; - } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( - (nan ? 0x7FFFFFFFFFFFFFFF : 0x7FF0000000000000) | - (negative ? 0x8000000000000000 : 0)); - return ret; - } while (0); +const uint32_t wuffs_private_impl__low_bits_mask__u32[32] = { + 0x00000000, 0x00000001, 0x00000003, 0x00000007, 0x0000000F, 0x0000001F, + 0x0000003F, 0x0000007F, 0x000000FF, 0x000001FF, 0x000003FF, 0x000007FF, + 0x00000FFF, 0x00001FFF, 0x00003FFF, 0x00007FFF, 0x0000FFFF, 0x0001FFFF, + 0x0003FFFF, 0x0007FFFF, 0x000FFFFF, 0x001FFFFF, 0x003FFFFF, 0x007FFFFF, + 0x00FFFFFF, 0x01FFFFFF, 0x03FFFFFF, 0x07FFFFFF, 0x0FFFFFFF, 0x1FFFFFFF, + 0x3FFFFFFF, 0x7FFFFFFF, +}; -fail: - do { - wuffs_base__result_f64 ret; - ret.status.repr = wuffs_base__error__bad_argument; - ret.value = 0; - return ret; - } while (0); -} +const uint64_t wuffs_private_impl__low_bits_mask__u64[64] = { + 0x0000000000000000, 0x0000000000000001, 0x0000000000000003, + 0x0000000000000007, 0x000000000000000F, 0x000000000000001F, + 0x000000000000003F, 0x000000000000007F, 0x00000000000000FF, + 0x00000000000001FF, 0x00000000000003FF, 0x00000000000007FF, + 0x0000000000000FFF, 0x0000000000001FFF, 0x0000000000003FFF, + 0x0000000000007FFF, 0x000000000000FFFF, 0x000000000001FFFF, + 0x000000000003FFFF, 0x000000000007FFFF, 0x00000000000FFFFF, + 0x00000000001FFFFF, 0x00000000003FFFFF, 0x00000000007FFFFF, + 0x0000000000FFFFFF, 0x0000000001FFFFFF, 0x0000000003FFFFFF, + 0x0000000007FFFFFF, 0x000000000FFFFFFF, 0x000000001FFFFFFF, + 0x000000003FFFFFFF, 0x000000007FFFFFFF, 0x00000000FFFFFFFF, + 0x00000001FFFFFFFF, 0x00000003FFFFFFFF, 0x00000007FFFFFFFF, + 0x0000000FFFFFFFFF, 0x0000001FFFFFFFFF, 0x0000003FFFFFFFFF, + 0x0000007FFFFFFFFF, 0x000000FFFFFFFFFF, 0x000001FFFFFFFFFF, + 0x000003FFFFFFFFFF, 0x000007FFFFFFFFFF, 0x00000FFFFFFFFFFF, + 0x00001FFFFFFFFFFF, 0x00003FFFFFFFFFFF, 0x00007FFFFFFFFFFF, + 0x0000FFFFFFFFFFFF, 0x0001FFFFFFFFFFFF, 0x0003FFFFFFFFFFFF, + 0x0007FFFFFFFFFFFF, 0x000FFFFFFFFFFFFF, 0x001FFFFFFFFFFFFF, + 0x003FFFFFFFFFFFFF, 0x007FFFFFFFFFFFFF, 0x00FFFFFFFFFFFFFF, + 0x01FFFFFFFFFFFFFF, 0x03FFFFFFFFFFFFFF, 0x07FFFFFFFFFFFFFF, + 0x0FFFFFFFFFFFFFFF, 0x1FFFFFFFFFFFFFFF, 0x3FFFFFFFFFFFFFFF, + 0x7FFFFFFFFFFFFFFF, +}; -WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // -wuffs_base__private_implementation__high_prec_dec__to_f64( - wuffs_base__private_implementation__high_prec_dec* h, - uint32_t options) { - do { - // powers converts decimal powers of 10 to binary powers of 2. For example, - // (10000 >> 13) is 1. It stops before the elements exceed 60, also known - // as WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL. - // - // This rounds down (1<<13 is a lower bound for 1e4). Adding 1 to the array - // element value rounds up (1<<14 is an upper bound for 1e4) while staying - // at or below WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL. - // - // When starting in the range [1e+1 .. 1e+2] (i.e. h->decimal_point == +2), - // powers[2] == 6 and so: - // - Right shifting by 6+0 produces the range [10/64 .. 100/64] = - // [0.156250 .. 1.56250]. The resultant h->decimal_point is +0 or +1. - // - Right shifting by 6+1 produces the range [10/128 .. 100/128] = - // [0.078125 .. 0.78125]. The resultant h->decimal_point is -1 or -0. - // - // When starting in the range [1e-3 .. 1e-2] (i.e. h->decimal_point == -2), - // powers[2] == 6 and so: - // - Left shifting by 6+0 produces the range [0.001*64 .. 0.01*64] = - // [0.064 .. 0.64]. The resultant h->decimal_point is -1 or -0. - // - Left shifting by 6+1 produces the range [0.001*128 .. 0.01*128] = - // [0.128 .. 1.28]. The resultant h->decimal_point is +0 or +1. - // - // Thus, when targeting h->decimal_point being +0 or +1, use (powers[n]+0) - // when right shifting but (powers[n]+1) when left shifting. - static const uint32_t num_powers = 19; - static const uint8_t powers[19] = { - 0, 3, 6, 9, 13, 16, 19, 23, 26, 29, // - 33, 36, 39, 43, 46, 49, 53, 56, 59, // - }; +const uint32_t wuffs_private_impl__pixel_format__bits_per_channel[16] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x0A, 0x0C, 0x10, 0x18, 0x20, 0x30, 0x40, +}; - // Handle zero and obvious extremes. The largest and smallest positive - // finite f64 values are approximately 1.8e+308 and 4.9e-324. - if ((h->num_digits == 0) || (h->decimal_point < -326)) { - goto zero; - } else if (h->decimal_point > 310) { - goto infinity; - } +const char wuffs_base__note__i_o_redirect[] = "@base: I/O redirect"; +const char wuffs_base__note__end_of_data[] = "@base: end of data"; +const char wuffs_base__note__metadata_reported[] = "@base: metadata reported"; +const char wuffs_base__suspension__even_more_information[] = "$base: even more information"; +const char wuffs_base__suspension__mispositioned_read[] = "$base: mispositioned read"; +const char wuffs_base__suspension__mispositioned_write[] = "$base: mispositioned write"; +const char wuffs_base__suspension__short_read[] = "$base: short read"; +const char wuffs_base__suspension__short_workbuf[] = "$base: short workbuf"; +const char wuffs_base__suspension__short_write[] = "$base: short write"; +const char wuffs_base__error__bad_i_o_position[] = "#base: bad I/O position"; +const char wuffs_base__error__bad_argument_length_too_short[] = "#base: bad argument (length too short)"; +const char wuffs_base__error__bad_argument[] = "#base: bad argument"; +const char wuffs_base__error__bad_call_sequence[] = "#base: bad call sequence"; +const char wuffs_base__error__bad_data[] = "#base: bad data"; +const char wuffs_base__error__bad_receiver[] = "#base: bad receiver"; +const char wuffs_base__error__bad_restart[] = "#base: bad restart"; +const char wuffs_base__error__bad_sizeof_receiver[] = "#base: bad sizeof receiver"; +const char wuffs_base__error__bad_vtable[] = "#base: bad vtable"; +const char wuffs_base__error__bad_workbuf_length[] = "#base: bad workbuf length"; +const char wuffs_base__error__bad_wuffs_version[] = "#base: bad wuffs version"; +const char wuffs_base__error__cannot_return_a_suspension[] = "#base: cannot return a suspension"; +const char wuffs_base__error__disabled_by_wuffs_config_dst_pixel_format_enable_allowlist[] = "#base: disabled by WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST"; +const char wuffs_base__error__disabled_by_previous_error[] = "#base: disabled by previous error"; +const char wuffs_base__error__initialize_falsely_claimed_already_zeroed[] = "#base: initialize falsely claimed already zeroed"; +const char wuffs_base__error__initialize_not_called[] = "#base: initialize not called"; +const char wuffs_base__error__insufficient_history[] = "#base: insufficient history"; +const char wuffs_base__error__interleaved_coroutine_calls[] = "#base: interleaved coroutine calls"; +const char wuffs_base__error__no_more_information[] = "#base: no more information"; +const char wuffs_base__error__not_enough_data[] = "#base: not enough data"; +const char wuffs_base__error__out_of_bounds[] = "#base: out of bounds"; +const char wuffs_base__error__unsupported_image_dimension[] = "#base: unsupported image dimension"; +const char wuffs_base__error__unsupported_method[] = "#base: unsupported method"; +const char wuffs_base__error__unsupported_option[] = "#base: unsupported option"; +const char wuffs_base__error__unsupported_pixel_swizzler_option[] = "#base: unsupported pixel swizzler option"; +const char wuffs_base__error__too_much_data[] = "#base: too much data"; - // Try the fast Eisel-Lemire algorithm again. Calculating the (man, exp10) - // pair from the high_prec_dec h is more correct but slower than the - // approach taken in wuffs_base__parse_number_f64. The latter is optimized - // for the common cases (e.g. assuming no underscores or a leading '+' - // sign) rather than the full set of cases allowed by the Wuffs API. - // - // When we have 19 or fewer mantissa digits, run Eisel-Lemire once (trying - // for an exact result). When we have more than 19 mantissa digits, run it - // twice to get a lower and upper bound. We still have an exact result - // (within f64's rounding margin) if both bounds are equal (and valid). - uint32_t i_max = h->num_digits; - if (i_max > 19) { - i_max = 19; - } - int32_t exp10 = h->decimal_point - ((int32_t)i_max); - if ((-307 <= exp10) && (exp10 <= 288)) { - uint64_t man = 0; - uint32_t i; - for (i = 0; i < i_max; i++) { - man = (10 * man) + h->digits[i]; - } - while (man != 0) { // The 'while' is just an 'if' that we can 'break'. - int64_t r0 = - wuffs_base__private_implementation__parse_number_f64_eisel_lemire( - man + 0, exp10); - if (r0 < 0) { - break; - } else if (h->num_digits > 19) { - int64_t r1 = - wuffs_base__private_implementation__parse_number_f64_eisel_lemire( - man + 1, exp10); - if (r1 != r0) { - break; - } - } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( - ((uint64_t)r0) | (((uint64_t)(h->negative)) << 63)); - return ret; - } - } +const char wuffs_base__hasher_u32__vtable_name[] = "{vtable}wuffs_base__hasher_u32"; +const char wuffs_base__hasher_u64__vtable_name[] = "{vtable}wuffs_base__hasher_u64"; +const char wuffs_base__hasher_bitvec256__vtable_name[] = "{vtable}wuffs_base__hasher_bitvec256"; +const char wuffs_base__image_decoder__vtable_name[] = "{vtable}wuffs_base__image_decoder"; +const char wuffs_base__io_transformer__vtable_name[] = "{vtable}wuffs_base__io_transformer"; +const char wuffs_base__token_decoder__vtable_name[] = "{vtable}wuffs_base__token_decoder"; - // When Eisel-Lemire fails, fall back to Simple Decimal Conversion. See - // https://nigeltao.github.io/blog/2020/parse-number-f64-simple.html - // - // Scale by powers of 2 until we're in the range [0.1 .. 10]. Equivalently, - // that h->decimal_point is +0 or +1. - // - // First we shift right while at or above 10... - const int32_t f64_bias = -1023; - int32_t exp2 = 0; - while (h->decimal_point > 1) { - uint32_t n = (uint32_t)(+h->decimal_point); - uint32_t shift = - (n < num_powers) - ? powers[n] - : WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; - - wuffs_base__private_implementation__high_prec_dec__small_rshift(h, shift); - if (h->decimal_point < - -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { - goto zero; - } - exp2 += (int32_t)shift; - } - // ...then we shift left while below 0.1. - while (h->decimal_point < 0) { - uint32_t shift; - uint32_t n = (uint32_t)(-h->decimal_point); - shift = (n < num_powers) - // The +1 is per "when targeting h->decimal_point being +0 or - // +1... when left shifting" in the powers comment above. - ? (powers[n] + 1) - : WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__CORE) - wuffs_base__private_implementation__high_prec_dec__small_lshift(h, shift); - if (h->decimal_point > - +WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { - goto infinity; - } - exp2 -= (int32_t)shift; - } +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) - // To get from "in the range [0.1 .. 10]" to "in the range [1 .. 2]" (which - // will give us our exponent in base-2), the mantissa's first 3 digits will - // determine the final left shift, equal to 52 (the number of explicit f64 - // bits) plus an additional adjustment. - int man3 = (100 * h->digits[0]) + - ((h->num_digits > 1) ? (10 * h->digits[1]) : 0) + - ((h->num_digits > 2) ? h->digits[2] : 0); - int32_t additional_lshift = 0; - if (h->decimal_point == 0) { // The value is in [0.1 .. 1]. - if (man3 < 125) { - additional_lshift = +4; - } else if (man3 < 250) { - additional_lshift = +3; - } else if (man3 < 500) { - additional_lshift = +2; - } else { - additional_lshift = +1; - } - } else { // The value is in [1 .. 10]. - if (man3 < 200) { - additional_lshift = -0; - } else if (man3 < 400) { - additional_lshift = -1; - } else if (man3 < 800) { - additional_lshift = -2; - } else { - additional_lshift = -3; - } - } - exp2 -= additional_lshift; - uint32_t final_lshift = (uint32_t)(52 + additional_lshift); +// ---------------- Interface Definitions. - // The minimum normal exponent is (f64_bias + 1). - while ((f64_bias + 1) > exp2) { - uint32_t n = (uint32_t)((f64_bias + 1) - exp2); - if (n > WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL) { - n = WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; - } - wuffs_base__private_implementation__high_prec_dec__small_rshift(h, n); - exp2 += (int32_t)n; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_base__hasher_u32__checksum_u32( + const wuffs_base__hasher_u32* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - // Check for overflow. - if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. - goto infinity; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->checksum_u32)(self); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // Extract 53 bits for the mantissa (in base-2). - wuffs_base__private_implementation__high_prec_dec__small_lshift( - h, final_lshift); - uint64_t man2 = - wuffs_base__private_implementation__high_prec_dec__rounded_integer(h); + return 0; +} - // Rounding might have added one bit. If so, shift and re-check overflow. - if ((man2 >> 53) != 0) { - man2 >>= 1; - exp2++; - if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. - goto infinity; - } - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_u32__get_quirk( + const wuffs_base__hasher_u32* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - // Handle subnormal numbers. - if ((man2 >> 52) == 0) { - exp2 = f64_bias; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // Pack the bits and return. - uint64_t exp2_bits = - (uint64_t)((exp2 - f64_bias) & 0x07FF); // (1 << 11) - 1. - uint64_t bits = (man2 & 0x000FFFFFFFFFFFFF) | // (1 << 52) - 1. - (exp2_bits << 52) | // - (h->negative ? 0x8000000000000000 : 0); // (1 << 63). - - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); - return ret; - } while (0); - -zero: - do { - uint64_t bits = h->negative ? 0x8000000000000000 : 0; + return 0; +} - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); - return ret; - } while (0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__hasher_u32__set_quirk( + wuffs_base__hasher_u32* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } -infinity: - do { - if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { - wuffs_base__result_f64 ret; - ret.status.repr = wuffs_base__error__bad_argument; - ret.value = 0; - return ret; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - uint64_t bits = h->negative ? 0xFFF0000000000000 : 0x7FF0000000000000; - - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); - return ret; - } while (0); + return wuffs_base__make_status(wuffs_base__error__bad_vtable); } -static inline bool // -wuffs_base__private_implementation__is_decimal_digit(uint8_t c) { - return ('0' <= c) && (c <= '9'); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__hasher_u32__update( + wuffs_base__hasher_u32* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } -WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // -wuffs_base__parse_number_f64(wuffs_base__slice_u8 s, uint32_t options) { - // In practice, almost all "dd.ddddE±xxx" numbers can be represented - // losslessly by a uint64_t mantissa "dddddd" and an int32_t base-10 - // exponent, adjusting "xxx" for the position (if present) of the decimal - // separator '.' or ','. - // - // This (u64 man, i32 exp10) data structure is superficially similar to the - // "Do It Yourself Floating Point" type from Loitsch (†), but the exponent - // here is base-10, not base-2. - // - // If s's number fits in a (man, exp10), parse that pair with the - // Eisel-Lemire algorithm. If not, or if Eisel-Lemire fails, parsing s with - // the fallback algorithm is slower but comprehensive. - // - // † "Printing Floating-Point Numbers Quickly and Accurately with Integers" - // (https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf). - // Florian Loitsch is also the primary contributor to - // https://github.com/google/double-conversion - do { - // Calculating that (man, exp10) pair needs to stay within s's bounds. - // Provided that s isn't extremely long, work on a NUL-terminated copy of - // s's contents. The NUL byte isn't a valid part of "±dd.ddddE±xxx". - // - // As the pointer p walks the contents, it's faster to repeatedly check "is - // *p a valid digit" than "is p within bounds and *p a valid digit". - if (s.len >= 256) { - goto fallback; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } - uint8_t z[256]; - memcpy(&z[0], s.ptr, s.len); - z[s.len] = 0; - const uint8_t* p = &z[0]; + v++; + } - // Look for a leading minus sign. Technically, we could also look for an - // optional plus sign, but the "script/process-json-numbers.c with -p" - // benchmark is noticably slower if we do. It's optional and, in practice, - // usually absent. Let the fallback catch it. - bool negative = (*p == '-'); - if (negative) { - p++; - } + return wuffs_base__make_empty_struct(); +} - // After walking "dd.dddd", comparing p later with p now will produce the - // number of "d"s and "."s. - const uint8_t* const start_of_digits_ptr = p; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_base__hasher_u32__update_u32( + wuffs_base__hasher_u32* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return 0; + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return 0; + } - // Walk the "d"s before a '.', 'E', NUL byte, etc. If it starts with '0', - // it must be a single '0'. If it starts with a non-zero decimal digit, it - // can be a sequence of decimal digits. - // - // Update the man variable during the walk. It's OK if man overflows now. - // We'll detect that later. - uint64_t man; - if (*p == '0') { - man = 0; - p++; - if (wuffs_base__private_implementation__is_decimal_digit(*p)) { - goto fallback; - } - } else if (wuffs_base__private_implementation__is_decimal_digit(*p)) { - man = ((uint8_t)(*p - '0')); - p++; - for (; wuffs_base__private_implementation__is_decimal_digit(*p); p++) { - man = (10 * man) + ((uint8_t)(*p - '0')); - } - } else { - goto fallback; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update_u32)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // Walk the "d"s after the optional decimal separator ('.' or ','), - // updating the man and exp10 variables. - int32_t exp10 = 0; - if (*p == - ((options & WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.')) { - p++; - const uint8_t* first_after_separator_ptr = p; - if (!wuffs_base__private_implementation__is_decimal_digit(*p)) { - goto fallback; - } - man = (10 * man) + ((uint8_t)(*p - '0')); - p++; - for (; wuffs_base__private_implementation__is_decimal_digit(*p); p++) { - man = (10 * man) + ((uint8_t)(*p - '0')); - } - exp10 = ((int32_t)(first_after_separator_ptr - p)); - } + return 0; +} - // Count the number of digits: - // - for an input of "314159", digit_count is 6. - // - for an input of "3.14159", digit_count is 7. - // - // This is off-by-one if there is a decimal separator. That's OK for now. - // We'll correct for that later. The "script/process-json-numbers.c with - // -p" benchmark is noticably slower if we try to correct for that now. - uint32_t digit_count = (uint32_t)(p - start_of_digits_ptr); +// -------- - // Update exp10 for the optional exponent, starting with 'E' or 'e'. - if ((*p | 0x20) == 'e') { - p++; - int32_t exp_sign = +1; - if (*p == '-') { - p++; - exp_sign = -1; - } else if (*p == '+') { - p++; - } - if (!wuffs_base__private_implementation__is_decimal_digit(*p)) { - goto fallback; - } - int32_t exp_num = ((uint8_t)(*p - '0')); - p++; - // The rest of the exp_num walking has a peculiar control flow but, once - // again, the "script/process-json-numbers.c with -p" benchmark is - // sensitive to alternative formulations. - if (wuffs_base__private_implementation__is_decimal_digit(*p)) { - exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); - p++; - } - if (wuffs_base__private_implementation__is_decimal_digit(*p)) { - exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); - p++; - } - while (wuffs_base__private_implementation__is_decimal_digit(*p)) { - if (exp_num > 0x1000000) { - goto fallback; - } - exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); - p++; - } - exp10 += exp_sign * exp_num; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_u64__checksum_u64( + const wuffs_base__hasher_u64* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - // The Wuffs API is that the original slice has no trailing data. It also - // allows underscores, which we don't catch here but the fallback should. - if (p != &z[s.len]) { - goto fallback; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->checksum_u64)(self); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // Check that the uint64_t typed man variable has not overflowed, based on - // digit_count. - // - // For reference: - // - (1 << 63) is 9223372036854775808, which has 19 decimal digits. - // - (1 << 64) is 18446744073709551616, which has 20 decimal digits. - // - 19 nines, 9999999999999999999, is 0x8AC7230489E7FFFF, which has 64 - // bits and 16 hexadecimal digits. - // - 20 nines, 99999999999999999999, is 0x56BC75E2D630FFFFF, which has 67 - // bits and 17 hexadecimal digits. - if (digit_count > 19) { - // Even if we have more than 19 pseudo-digits, it's not yet definitely an - // overflow. Recall that digit_count might be off-by-one (too large) if - // there's a decimal separator. It will also over-report the number of - // meaningful digits if the input looks something like "0.000dddExxx". - // - // We adjust by the number of leading '0's and '.'s and re-compare to 19. - // Once again, technically, we could skip ','s too, but that perturbs the - // "script/process-json-numbers.c with -p" benchmark. - const uint8_t* q = start_of_digits_ptr; - for (; (*q == '0') || (*q == '.'); q++) { - } - digit_count -= (uint32_t)(q - start_of_digits_ptr); - if (digit_count > 19) { - goto fallback; - } - } + return 0; +} - // The wuffs_base__private_implementation__parse_number_f64_eisel_lemire - // preconditions include that exp10 is in the range [-307 ..= 288]. - if ((exp10 < -307) || (288 < exp10)) { - goto fallback; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_u64__get_quirk( + const wuffs_base__hasher_u64* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - // If both man and (10 ** exp10) are exactly representable by a double, we - // don't need to run the Eisel-Lemire algorithm. - if ((-22 <= exp10) && (exp10 <= 22) && ((man >> 53) == 0)) { - double d = (double)man; - if (exp10 >= 0) { - d *= wuffs_base__private_implementation__f64_powers_of_10[+exp10]; - } else { - d /= wuffs_base__private_implementation__f64_powers_of_10[-exp10]; - } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = negative ? -d : +d; - return ret; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // The wuffs_base__private_implementation__parse_number_f64_eisel_lemire - // preconditions include that man is non-zero. Parsing "0" should be caught - // by the "If both man and (10 ** exp10)" above, but "0e99" might not. - if (man == 0) { - goto fallback; - } + return 0; +} - // Our man and exp10 are in range. Run the Eisel-Lemire algorithm. - int64_t r = - wuffs_base__private_implementation__parse_number_f64_eisel_lemire( - man, exp10); - if (r < 0) { - goto fallback; - } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( - ((uint64_t)r) | (((uint64_t)negative) << 63)); - return ret; - } while (0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__hasher_u64__set_quirk( + wuffs_base__hasher_u64* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } -fallback: - do { - wuffs_base__private_implementation__high_prec_dec h; - wuffs_base__status status = - wuffs_base__private_implementation__high_prec_dec__parse(&h, s, - options); - if (status.repr) { - return wuffs_base__private_implementation__parse_number_f64_special( - s, options); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; } - return wuffs_base__private_implementation__high_prec_dec__to_f64(&h, - options); - } while (0); -} + v++; + } -// -------- + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} -static inline size_t // -wuffs_base__private_implementation__render_inf(wuffs_base__slice_u8 dst, - bool neg, - uint32_t options) { - if (neg) { - if (dst.len < 4) { - return 0; - } - wuffs_base__poke_u32le__no_bounds_check(dst.ptr, 0x666E492D); // '-Inf'le. - return 4; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__hasher_u64__update( + wuffs_base__hasher_u64* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); } - if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { - if (dst.len < 4) { - return 0; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } - wuffs_base__poke_u32le__no_bounds_check(dst.ptr, 0x666E492B); // '+Inf'le. - return 4; + v++; } - if (dst.len < 3) { - return 0; - } - wuffs_base__poke_u24le__no_bounds_check(dst.ptr, 0x666E49); // 'Inf'le. - return 3; + return wuffs_base__make_empty_struct(); } -static inline size_t // -wuffs_base__private_implementation__render_nan(wuffs_base__slice_u8 dst) { - if (dst.len < 3) { +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_u64__update_u64( + wuffs_base__hasher_u64* self, + wuffs_base__slice_u8 a_x) { + if (!self) { return 0; } - wuffs_base__poke_u24le__no_bounds_check(dst.ptr, 0x4E614E); // 'NaN'le. - return 3; -} - -static size_t // -wuffs_base__private_implementation__high_prec_dec__render_exponent_absent( - wuffs_base__slice_u8 dst, - wuffs_base__private_implementation__high_prec_dec* h, - uint32_t precision, - uint32_t options) { - size_t n = (h->negative || - (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) - ? 1 - : 0; - if (h->decimal_point <= 0) { - n += 1; - } else { - n += (size_t)(h->decimal_point); - } - if (precision > 0) { - n += precision + 1; // +1 for the '.'. + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return 0; } - // Don't modify dst if the formatted number won't fit. - if (n > dst.len) { - return 0; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update_u64)(self, a_x); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - // Align-left or align-right. - uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) - ? &dst.ptr[dst.len - n] - : &dst.ptr[0]; + return 0; +} - // Leading "±". - if (h->negative) { - *ptr++ = '-'; - } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { - *ptr++ = '+'; - } +// -------- - // Integral digits. - if (h->decimal_point <= 0) { - *ptr++ = '0'; - } else { - uint32_t m = - wuffs_base__u32__min(h->num_digits, (uint32_t)(h->decimal_point)); - uint32_t i = 0; - for (; i < m; i++) { - *ptr++ = (uint8_t)('0' | h->digits[i]); - } - for (; i < (uint32_t)(h->decimal_point); i++) { - *ptr++ = '0'; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_base__hasher_bitvec256__checksum_bitvec256( + const wuffs_base__hasher_bitvec256* self) { + if (!self) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); } - // Separator and then fractional digits. - if (precision > 0) { - *ptr++ = - (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.'; - uint32_t i = 0; - for (; i < precision; i++) { - uint32_t j = ((uint32_t)(h->decimal_point)) + i; - *ptr++ = (uint8_t)('0' | ((j < h->num_digits) ? h->digits[j] : 0)); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->checksum_bitvec256)(self); + } else if (v->vtable_name == NULL) { + break; } + v++; } - return n; + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); } -static size_t // -wuffs_base__private_implementation__high_prec_dec__render_exponent_present( - wuffs_base__slice_u8 dst, - wuffs_base__private_implementation__high_prec_dec* h, - uint32_t precision, - uint32_t options) { - int32_t exp = 0; - if (h->num_digits > 0) { - exp = h->decimal_point - 1; - } - bool negative_exp = exp < 0; - if (negative_exp) { - exp = -exp; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_bitvec256__get_quirk( + const wuffs_base__hasher_bitvec256* self, + uint32_t a_key) { + if (!self) { + return 0; } - - size_t n = (h->negative || - (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) - ? 4 - : 3; // Mininum 3 bytes: first digit and then "e±". - if (precision > 0) { - n += precision + 1; // +1 for the '.'. + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - n += (exp < 100) ? 2 : 3; - // Don't modify dst if the formatted number won't fit. - if (n > dst.len) { - return 0; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - // Align-left or align-right. - uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) - ? &dst.ptr[dst.len - n] - : &dst.ptr[0]; + return 0; +} - // Leading "±". - if (h->negative) { - *ptr++ = '-'; - } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { - *ptr++ = '+'; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__hasher_bitvec256__set_quirk( + wuffs_base__hasher_bitvec256* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - - // Integral digit. - if (h->num_digits > 0) { - *ptr++ = (uint8_t)('0' | h->digits[0]); - } else { - *ptr++ = '0'; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - // Separator and then fractional digits. - if (precision > 0) { - *ptr++ = - (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.'; - uint32_t i = 1; - uint32_t j = wuffs_base__u32__min(h->num_digits, precision + 1); - for (; i < j; i++) { - *ptr++ = (uint8_t)('0' | h->digits[i]); - } - for (; i <= precision; i++) { - *ptr++ = '0'; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; } + v++; } - // Exponent: "e±" and then 2 or 3 digits. - *ptr++ = 'e'; - *ptr++ = negative_exp ? '-' : '+'; - if (exp < 10) { - *ptr++ = '0'; - *ptr++ = (uint8_t)('0' | exp); - } else if (exp < 100) { - *ptr++ = (uint8_t)('0' | (exp / 10)); - *ptr++ = (uint8_t)('0' | (exp % 10)); - } else { - int32_t e = exp / 100; - exp -= e * 100; - *ptr++ = (uint8_t)('0' | e); - *ptr++ = (uint8_t)('0' | (exp / 10)); - *ptr++ = (uint8_t)('0' | (exp % 10)); - } - - return n; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); } -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__render_number_f64(wuffs_base__slice_u8 dst, - double x, - uint32_t precision, - uint32_t options) { - // Decompose x (64 bits) into negativity (1 bit), base-2 exponent (11 bits - // with a -1023 bias) and mantissa (52 bits). - uint64_t bits = wuffs_base__ieee_754_bit_representation__from_f64_to_u64(x); - bool neg = (bits >> 63) != 0; - int32_t exp2 = ((int32_t)(bits >> 52)) & 0x7FF; - uint64_t man = bits & 0x000FFFFFFFFFFFFFul; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__hasher_bitvec256__update( + wuffs_base__hasher_bitvec256* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } - // Apply the exponent bias and set the implicit top bit of the mantissa, - // unless x is subnormal. Also take care of Inf and NaN. - if (exp2 == 0x7FF) { - if (man != 0) { - return wuffs_base__private_implementation__render_nan(dst); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } - return wuffs_base__private_implementation__render_inf(dst, neg, options); - } else if (exp2 == 0) { - exp2 = -1022; - } else { - exp2 -= 1023; - man |= 0x0010000000000000ul; + v++; } - // Ensure that precision isn't too large. - if (precision > 4095) { - precision = 4095; + return wuffs_base__make_empty_struct(); +} + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_base__hasher_bitvec256__update_bitvec256( + wuffs_base__hasher_bitvec256* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); } - // Convert from the (neg, exp2, man) tuple to an HPD. - wuffs_base__private_implementation__high_prec_dec h; - wuffs_base__private_implementation__high_prec_dec__assign(&h, man, neg); - if (h.num_digits > 0) { - wuffs_base__private_implementation__high_prec_dec__lshift( - &h, exp2 - 52); // 52 mantissa bits. + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update_bitvec256)(self, a_x); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - // Handle the "%e" and "%f" formats. - switch (options & (WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT | - WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT)) { - case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT: // The "%"f" format. - if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { - wuffs_base__private_implementation__high_prec_dec__round_just_enough( - &h, exp2, man); - int32_t p = ((int32_t)(h.num_digits)) - h.decimal_point; - precision = ((uint32_t)(wuffs_base__i32__max(0, p))); - } else { - wuffs_base__private_implementation__high_prec_dec__round_nearest( - &h, ((int32_t)precision) + h.decimal_point); - } - return wuffs_base__private_implementation__high_prec_dec__render_exponent_absent( - dst, &h, precision, options); + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); +} - case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT: // The "%e" format. - if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { - wuffs_base__private_implementation__high_prec_dec__round_just_enough( - &h, exp2, man); - precision = (h.num_digits > 0) ? (h.num_digits - 1) : 0; - } else { - wuffs_base__private_implementation__high_prec_dec__round_nearest( - &h, ((int32_t)precision) + 1); - } - return wuffs_base__private_implementation__high_prec_dec__render_exponent_present( - dst, &h, precision, options); +// -------- + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__decode_frame( + wuffs_base__image_decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - // We have the "%g" format and so precision means the number of significant - // digits, not the number of digits after the decimal separator. Perform - // rounding and determine whether to use "%e" or "%f". - int32_t e_threshold = 0; - if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { - wuffs_base__private_implementation__high_prec_dec__round_just_enough( - &h, exp2, man); - precision = h.num_digits; - e_threshold = 6; - } else { - if (precision == 0) { - precision = 1; - } - wuffs_base__private_implementation__high_prec_dec__round_nearest( - &h, ((int32_t)precision)); - e_threshold = ((int32_t)precision); - int32_t nd = ((int32_t)(h.num_digits)); - if ((e_threshold > nd) && (nd >= h.decimal_point)) { - e_threshold = nd; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->decode_frame)(self, a_dst, a_src, a_blend, a_workbuf, a_opts); + } else if (v->vtable_name == NULL) { + break; } + v++; } - // Use the "%e" format if the exponent is large. - int32_t e = h.decimal_point - 1; - if ((e < -4) || (e_threshold <= e)) { - uint32_t p = wuffs_base__u32__min(precision, h.num_digits); - return wuffs_base__private_implementation__high_prec_dec__render_exponent_present( - dst, &h, (p > 0) ? (p - 1) : 0, options); + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__decode_frame_config( + wuffs_base__image_decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - // Use the "%f" format otherwise. - int32_t p = ((int32_t)precision); - if (p > h.decimal_point) { - p = ((int32_t)(h.num_digits)); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->decode_frame_config)(self, a_dst, a_src); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - precision = ((uint32_t)(wuffs_base__i32__max(0, p - h.decimal_point))); - return wuffs_base__private_implementation__high_prec_dec__render_exponent_absent( - dst, &h, precision, options); + + return wuffs_base__make_status(wuffs_base__error__bad_vtable); } -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__decode_image_config( + wuffs_base__image_decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->decode_image_config)(self, a_dst, a_src); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } -// ---------------- Integer + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} -// wuffs_base__parse_number__foo_digits entries are 0x00 for invalid digits, -// and (0x80 | v) for valid digits, where v is the 4 bit value. +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_base__image_decoder__frame_dirty_rect( + const wuffs_base__image_decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } -static const uint8_t wuffs_base__parse_number__decimal_digits[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. - 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->frame_dirty_rect)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x40 ..= 0x47. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x60 ..= 0x67. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. + return wuffs_base__utility__empty_rect_ie_u32(); +} - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__image_decoder__get_quirk( + const wuffs_base__image_decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F -}; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } -static const uint8_t wuffs_base__parse_number__hexadecimal_digits[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. - 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. + return 0; +} - 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x40 ..= 0x47. 'A'-'F'. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. - 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x60 ..= 0x67. 'a'-'f'. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_base__image_decoder__num_animation_loops( + const wuffs_base__image_decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->num_animation_loops)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F -}; + return 0; +} -static const uint8_t wuffs_base__private_implementation__encode_base16[16] = { - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // 0x00 ..= 0x07. - 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, // 0x08 ..= 0x0F. -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__image_decoder__num_decoded_frame_configs( + const wuffs_base__image_decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -// -------- + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->num_decoded_frame_configs)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } -WUFFS_BASE__MAYBE_STATIC wuffs_base__result_i64 // -wuffs_base__parse_number_i64(wuffs_base__slice_u8 s, uint32_t options) { - uint8_t* p = s.ptr; - uint8_t* q = s.ptr + s.len; + return 0; +} - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (; (p < q) && (*p == '_'); p++) { - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__image_decoder__num_decoded_frames( + const wuffs_base__image_decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - bool negative = false; - if (p >= q) { - goto fail_bad_argument; - } else if (*p == '-') { - p++; - negative = true; - } else if (*p == '+') { - p++; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->num_decoded_frames)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - do { - wuffs_base__result_u64 r = wuffs_base__parse_number_u64( - wuffs_base__make_slice_u8(p, (size_t)(q - p)), options); - if (r.status.repr != NULL) { - wuffs_base__result_i64 ret; - ret.status.repr = r.status.repr; - ret.value = 0; - return ret; - } else if (negative) { - if (r.value < 0x8000000000000000) { - wuffs_base__result_i64 ret; - ret.status.repr = NULL; - ret.value = -(int64_t)(r.value); - return ret; - } else if (r.value == 0x8000000000000000) { - wuffs_base__result_i64 ret; - ret.status.repr = NULL; - ret.value = INT64_MIN; - return ret; - } - goto fail_out_of_bounds; - } else if (r.value > 0x7FFFFFFFFFFFFFFF) { - goto fail_out_of_bounds; - } else { - wuffs_base__result_i64 ret; - ret.status.repr = NULL; - ret.value = +(int64_t)(r.value); - return ret; - } - } while (0); - -fail_bad_argument: - do { - wuffs_base__result_i64 ret; - ret.status.repr = wuffs_base__error__bad_argument; - ret.value = 0; - return ret; - } while (0); - -fail_out_of_bounds: - do { - wuffs_base__result_i64 ret; - ret.status.repr = wuffs_base__error__out_of_bounds; - ret.value = 0; - return ret; - } while (0); + return 0; } -WUFFS_BASE__MAYBE_STATIC wuffs_base__result_u64 // -wuffs_base__parse_number_u64(wuffs_base__slice_u8 s, uint32_t options) { - uint8_t* p = s.ptr; - uint8_t* q = s.ptr + s.len; - - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (; (p < q) && (*p == '_'); p++) { - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__restart_frame( + wuffs_base__image_decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - if (p >= q) { - goto fail_bad_argument; - - } else if (*p == '0') { - p++; - if (p >= q) { - goto ok_zero; - } - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - if (*p == '_') { - p++; - for (; p < q; p++) { - if (*p != '_') { - if (options & - WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { - goto decimal; - } - goto fail_bad_argument; - } - } - goto ok_zero; - } + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->restart_frame)(self, a_index, a_io_position); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - if ((*p == 'x') || (*p == 'X')) { - p++; - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (; (p < q) && (*p == '_'); p++) { - } - } - if (p < q) { - goto hexadecimal; - } + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - } else if ((*p == 'd') || (*p == 'D')) { - p++; - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (; (p < q) && (*p == '_'); p++) { - } - } - if (p < q) { - goto decimal; - } - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__set_quirk( + wuffs_base__image_decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { - goto decimal; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; } - goto fail_bad_argument; + v++; } -decimal: - do { - uint64_t v = wuffs_base__parse_number__decimal_digits[*p++]; - if (v == 0) { - goto fail_bad_argument; - } - v &= 0x0F; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - // UINT64_MAX is 18446744073709551615, which is ((10 * max10) + max1). - const uint64_t max10 = 1844674407370955161u; - const uint8_t max1 = 5; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__image_decoder__set_report_metadata( + wuffs_base__image_decoder* self, + uint32_t a_fourcc, + bool a_report) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } - for (; p < q; p++) { - if ((*p == '_') && - (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - continue; - } - uint8_t digit = wuffs_base__parse_number__decimal_digits[*p]; - if (digit == 0) { - goto fail_bad_argument; - } - digit &= 0x0F; - if ((v > max10) || ((v == max10) && (digit > max1))) { - goto fail_out_of_bounds; - } - v = (10 * v) + ((uint64_t)(digit)); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_report_metadata)(self, a_fourcc, a_report); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - wuffs_base__result_u64 ret; - ret.status.repr = NULL; - ret.value = v; - return ret; - } while (0); + return wuffs_base__make_empty_struct(); +} -hexadecimal: - do { - uint64_t v = wuffs_base__parse_number__hexadecimal_digits[*p++]; - if (v == 0) { - goto fail_bad_argument; - } - v &= 0x0F; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__tell_me_more( + wuffs_base__image_decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - for (; p < q; p++) { - if ((*p == '_') && - (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - continue; - } - uint8_t digit = wuffs_base__parse_number__hexadecimal_digits[*p]; - if (digit == 0) { - goto fail_bad_argument; - } - digit &= 0x0F; - if ((v >> 60) != 0) { - goto fail_out_of_bounds; - } - v = (v << 4) | ((uint64_t)(digit)); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->tell_me_more)(self, a_dst, a_minfo, a_src); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - wuffs_base__result_u64 ret; - ret.status.repr = NULL; - ret.value = v; - return ret; - } while (0); + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} -ok_zero: - do { - wuffs_base__result_u64 ret; - ret.status.repr = NULL; - ret.value = 0; - return ret; - } while (0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_base__image_decoder__workbuf_len( + const wuffs_base__image_decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } -fail_bad_argument: - do { - wuffs_base__result_u64 ret; - ret.status.repr = wuffs_base__error__bad_argument; - ret.value = 0; - return ret; - } while (0); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->workbuf_len)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } -fail_out_of_bounds: - do { - wuffs_base__result_u64 ret; - ret.status.repr = wuffs_base__error__out_of_bounds; - ret.value = 0; - return ret; - } while (0); + return wuffs_base__utility__empty_range_ii_u64(); } // -------- -// wuffs_base__render_number__first_hundred contains the decimal encodings of -// the first one hundred numbers [0 ..= 99]. -static const uint8_t wuffs_base__render_number__first_hundred[200] = { - '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', // - '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', // - '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', // - '1', '5', '1', '6', '1', '7', '1', '8', '1', '9', // - '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', // - '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', // - '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', // - '3', '5', '3', '6', '3', '7', '3', '8', '3', '9', // - '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', // - '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', // - '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', // - '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', // - '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', // - '6', '5', '6', '6', '6', '7', '6', '8', '6', '9', // - '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', // - '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', // - '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', // - '8', '5', '8', '6', '8', '7', '8', '8', '8', '9', // - '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', // - '9', '5', '9', '6', '9', '7', '9', '8', '9', '9', // -}; - -static size_t // -wuffs_base__private_implementation__render_number_u64(wuffs_base__slice_u8 dst, - uint64_t x, - uint32_t options, - bool neg) { - uint8_t buf[WUFFS_BASE__U64__BYTE_LENGTH__MAX_INCL]; - uint8_t* ptr = &buf[0] + sizeof(buf); - - while (x >= 100) { - size_t index = ((size_t)((x % 100) * 2)); - x /= 100; - uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; - uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; - ptr -= 2; - ptr[0] = s0; - ptr[1] = s1; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_base__io_transformer__dst_history_retain_length( + const wuffs_base__io_transformer* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); } - - if (x < 10) { - ptr -= 1; - ptr[0] = (uint8_t)('0' + x); - } else { - size_t index = ((size_t)(x * 2)); - uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; - uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; - ptr -= 2; - ptr[0] = s0; - ptr[1] = s1; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); } - if (neg) { - ptr -= 1; - ptr[0] = '-'; - } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { - ptr -= 1; - ptr[0] = '+'; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->dst_history_retain_length)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - size_t n = sizeof(buf) - ((size_t)(ptr - &buf[0])); - if (n > dst.len) { + return wuffs_base__utility__make_optional_u63(false, 0u); +} + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__io_transformer__get_quirk( + const wuffs_base__io_transformer* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { return 0; } - memcpy(dst.ptr + ((options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) - ? (dst.len - n) - : 0), - ptr, n); - return n; -} -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__render_number_i64(wuffs_base__slice_u8 dst, - int64_t x, - uint32_t options) { - uint64_t u = (uint64_t)x; - bool neg = x < 0; - if (neg) { - u = 1 + ~u; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - return wuffs_base__private_implementation__render_number_u64(dst, u, options, - neg); -} -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__render_number_u64(wuffs_base__slice_u8 dst, - uint64_t x, - uint32_t options) { - return wuffs_base__private_implementation__render_number_u64(dst, x, options, - false); + return 0; } -// ---------------- Base-16 +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__io_transformer__set_quirk( + wuffs_base__io_transformer* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_16__decode2(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - wuffs_base__transform__output o; - size_t src_len2 = src.len / 2; - size_t len; - if (dst.len < src_len2) { - len = dst.len; - o.status.repr = wuffs_base__suspension__short_write; - } else { - len = src_len2; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - } else if (src.len & 1) { - o.status.repr = wuffs_base__error__bad_data; - } else { - o.status.repr = NULL; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; } + v++; } - uint8_t* d = dst.ptr; - uint8_t* s = src.ptr; - size_t n = len; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - while (n--) { - *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[0]] << 4) | - (wuffs_base__parse_number__hexadecimal_digits[s[1]] & 0x0F)); - d += 1; - s += 2; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__io_transformer__transform_io( + wuffs_base__io_transformer* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - o.num_dst = len; - o.num_src = len * 2; - return o; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->transform_io)(self, a_dst, a_src, a_workbuf); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } + + return wuffs_base__make_status(wuffs_base__error__bad_vtable); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_16__decode4(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - wuffs_base__transform__output o; - size_t src_len4 = src.len / 4; - size_t len = dst.len < src_len4 ? dst.len : src_len4; - if (dst.len < src_len4) { - len = dst.len; - o.status.repr = wuffs_base__suspension__short_write; - } else { - len = src_len4; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - } else if (src.len & 1) { - o.status.repr = wuffs_base__error__bad_data; - } else { - o.status.repr = NULL; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_base__io_transformer__workbuf_len( + const wuffs_base__io_transformer* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); } - uint8_t* d = dst.ptr; - uint8_t* s = src.ptr; - size_t n = len; - - while (n--) { - *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[2]] << 4) | - (wuffs_base__parse_number__hexadecimal_digits[s[3]] & 0x0F)); - d += 1; - s += 4; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->workbuf_len)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - o.num_dst = len; - o.num_src = len * 4; - return o; + return wuffs_base__utility__empty_range_ii_u64(); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_16__encode2(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - wuffs_base__transform__output o; - size_t dst_len2 = dst.len / 2; - size_t len; - if (dst_len2 < src.len) { - len = dst_len2; - o.status.repr = wuffs_base__suspension__short_write; - } else { - len = src.len; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - } else { - o.status.repr = NULL; - } - } +// -------- - uint8_t* d = dst.ptr; - uint8_t* s = src.ptr; - size_t n = len; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__token_decoder__decode_tokens( + wuffs_base__token_decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - while (n--) { - uint8_t c = *s; - d[0] = wuffs_base__private_implementation__encode_base16[c >> 4]; - d[1] = wuffs_base__private_implementation__encode_base16[c & 0x0F]; - d += 2; - s += 1; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { + const wuffs_base__token_decoder__func_ptrs* func_ptrs = + (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->decode_tokens)(self, a_dst, a_src, a_workbuf); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - o.num_dst = len * 2; - o.num_src = len; - return o; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_16__encode4(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - wuffs_base__transform__output o; - size_t dst_len4 = dst.len / 4; - size_t len; - if (dst_len4 < src.len) { - len = dst_len4; - o.status.repr = wuffs_base__suspension__short_write; - } else { - len = src.len; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - } else { - o.status.repr = NULL; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__token_decoder__get_quirk( + const wuffs_base__token_decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - uint8_t* d = dst.ptr; - uint8_t* s = src.ptr; - size_t n = len; - - while (n--) { - uint8_t c = *s; - d[0] = '\\'; - d[1] = 'x'; - d[2] = wuffs_base__private_implementation__encode_base16[c >> 4]; - d[3] = wuffs_base__private_implementation__encode_base16[c & 0x0F]; - d += 4; - s += 1; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { + const wuffs_base__token_decoder__func_ptrs* func_ptrs = + (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - o.num_dst = len * 4; - o.num_src = len; - return o; + return 0; } -// ---------------- Base-64 +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__token_decoder__set_quirk( + wuffs_base__token_decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } -// The two base-64 alphabets, std and url, differ only in the last two codes. -// - std: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" -// - url: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_" + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { + const wuffs_base__token_decoder__func_ptrs* func_ptrs = + (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } -static const uint8_t wuffs_base__base_64__decode_std[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. - 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, 0x80, 0x3F, // 0x28 ..= 0x2F. - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. - 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. - 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. - 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. - 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x58 ..= 0x5F. - 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. - 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. - 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. - 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_base__token_decoder__workbuf_len( + const wuffs_base__token_decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { + const wuffs_base__token_decoder__func_ptrs* func_ptrs = + (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->workbuf_len)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F -}; + return wuffs_base__utility__empty_range_ii_u64(); +} -static const uint8_t wuffs_base__base_64__decode_url[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, // 0x28 ..= 0x2F. - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. - 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) - 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. - 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. - 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. - 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x3F, // 0x58 ..= 0x5F. - 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. - 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. - 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. - 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. +// ---------------- IEEE 754 Floating Point - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F +// The etc__hpd_left_shift and etc__powers_of_5 tables were printed by +// script/print-hpd-left-shift.go. That script has an optional -comments flag, +// whose output is not copied here, which prints further detail. +// +// These tables are used in +// wuffs_private_impl__high_prec_dec__lshift_num_new_digits. + +// wuffs_private_impl__hpd_left_shift[i] encodes the number of new digits +// created after multiplying a positive integer by (1 << i): the additional +// length in the decimal representation. For example, shifting "234" by 3 +// (equivalent to multiplying by 8) will produce "1872". Going from a 3-length +// string to a 4-length string means that 1 new digit was added (and existing +// digits may have changed). +// +// Shifting by i can add either N or N-1 new digits, depending on whether the +// original positive integer compares >= or < to the i'th power of 5 (as 10 +// equals 2 * 5). Comparison is lexicographic, not numerical. +// +// For example, shifting by 4 (i.e. multiplying by 16) can add 1 or 2 new +// digits, depending on a lexicographic comparison to (5 ** 4), i.e. "625": +// - ("1" << 4) is "16", which adds 1 new digit. +// - ("5678" << 4) is "90848", which adds 1 new digit. +// - ("624" << 4) is "9984", which adds 1 new digit. +// - ("62498" << 4) is "999968", which adds 1 new digit. +// - ("625" << 4) is "10000", which adds 2 new digits. +// - ("625001" << 4) is "10000016", which adds 2 new digits. +// - ("7008" << 4) is "112128", which adds 2 new digits. +// - ("99" << 4) is "1584", which adds 2 new digits. +// +// Thus, when i is 4, N is 2 and (5 ** i) is "625". This etc__hpd_left_shift +// array encodes this as: +// - etc__hpd_left_shift[4] is 0x1006 = (2 << 11) | 0x0006. +// - etc__hpd_left_shift[5] is 0x1009 = (? << 11) | 0x0009. +// where the ? isn't relevant for i == 4. +// +// The high 5 bits of etc__hpd_left_shift[i] is N, the higher of the two +// possible number of new digits. The low 11 bits are an offset into the +// etc__powers_of_5 array (of length 0x051C, so offsets fit in 11 bits). When i +// is 4, its offset and the next one is 6 and 9, and etc__powers_of_5[6 .. 9] +// is the string "\x06\x02\x05", so the relevant power of 5 is "625". +// +// Thanks to Ken Thompson for the original idea. +static const uint16_t wuffs_private_impl__hpd_left_shift[65] = { + 0x0000, 0x0800, 0x0801, 0x0803, 0x1006, 0x1009, 0x100D, 0x1812, 0x1817, + 0x181D, 0x2024, 0x202B, 0x2033, 0x203C, 0x2846, 0x2850, 0x285B, 0x3067, + 0x3073, 0x3080, 0x388E, 0x389C, 0x38AB, 0x38BB, 0x40CC, 0x40DD, 0x40EF, + 0x4902, 0x4915, 0x4929, 0x513E, 0x5153, 0x5169, 0x5180, 0x5998, 0x59B0, + 0x59C9, 0x61E3, 0x61FD, 0x6218, 0x6A34, 0x6A50, 0x6A6D, 0x6A8B, 0x72AA, + 0x72C9, 0x72E9, 0x7B0A, 0x7B2B, 0x7B4D, 0x8370, 0x8393, 0x83B7, 0x83DC, + 0x8C02, 0x8C28, 0x8C4F, 0x9477, 0x949F, 0x94C8, 0x9CF2, 0x051C, 0x051C, + 0x051C, 0x051C, }; -static const uint8_t wuffs_base__base_64__encode_std[64] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. - 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. - 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. - 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. - 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. - 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. - 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F, // 0x38 ..= 0x3F. +// wuffs_private_impl__powers_of_5 contains the powers of 5, concatenated +// together: "5", "25", "125", "625", "3125", etc. +static const uint8_t wuffs_private_impl__powers_of_5[0x051C] = { + 5, 2, 5, 1, 2, 5, 6, 2, 5, 3, 1, 2, 5, 1, 5, 6, 2, 5, 7, 8, 1, 2, 5, 3, 9, + 0, 6, 2, 5, 1, 9, 5, 3, 1, 2, 5, 9, 7, 6, 5, 6, 2, 5, 4, 8, 8, 2, 8, 1, 2, + 5, 2, 4, 4, 1, 4, 0, 6, 2, 5, 1, 2, 2, 0, 7, 0, 3, 1, 2, 5, 6, 1, 0, 3, 5, + 1, 5, 6, 2, 5, 3, 0, 5, 1, 7, 5, 7, 8, 1, 2, 5, 1, 5, 2, 5, 8, 7, 8, 9, 0, + 6, 2, 5, 7, 6, 2, 9, 3, 9, 4, 5, 3, 1, 2, 5, 3, 8, 1, 4, 6, 9, 7, 2, 6, 5, + 6, 2, 5, 1, 9, 0, 7, 3, 4, 8, 6, 3, 2, 8, 1, 2, 5, 9, 5, 3, 6, 7, 4, 3, 1, + 6, 4, 0, 6, 2, 5, 4, 7, 6, 8, 3, 7, 1, 5, 8, 2, 0, 3, 1, 2, 5, 2, 3, 8, 4, + 1, 8, 5, 7, 9, 1, 0, 1, 5, 6, 2, 5, 1, 1, 9, 2, 0, 9, 2, 8, 9, 5, 5, 0, 7, + 8, 1, 2, 5, 5, 9, 6, 0, 4, 6, 4, 4, 7, 7, 5, 3, 9, 0, 6, 2, 5, 2, 9, 8, 0, + 2, 3, 2, 2, 3, 8, 7, 6, 9, 5, 3, 1, 2, 5, 1, 4, 9, 0, 1, 1, 6, 1, 1, 9, 3, + 8, 4, 7, 6, 5, 6, 2, 5, 7, 4, 5, 0, 5, 8, 0, 5, 9, 6, 9, 2, 3, 8, 2, 8, 1, + 2, 5, 3, 7, 2, 5, 2, 9, 0, 2, 9, 8, 4, 6, 1, 9, 1, 4, 0, 6, 2, 5, 1, 8, 6, + 2, 6, 4, 5, 1, 4, 9, 2, 3, 0, 9, 5, 7, 0, 3, 1, 2, 5, 9, 3, 1, 3, 2, 2, 5, + 7, 4, 6, 1, 5, 4, 7, 8, 5, 1, 5, 6, 2, 5, 4, 6, 5, 6, 6, 1, 2, 8, 7, 3, 0, + 7, 7, 3, 9, 2, 5, 7, 8, 1, 2, 5, 2, 3, 2, 8, 3, 0, 6, 4, 3, 6, 5, 3, 8, 6, + 9, 6, 2, 8, 9, 0, 6, 2, 5, 1, 1, 6, 4, 1, 5, 3, 2, 1, 8, 2, 6, 9, 3, 4, 8, + 1, 4, 4, 5, 3, 1, 2, 5, 5, 8, 2, 0, 7, 6, 6, 0, 9, 1, 3, 4, 6, 7, 4, 0, 7, + 2, 2, 6, 5, 6, 2, 5, 2, 9, 1, 0, 3, 8, 3, 0, 4, 5, 6, 7, 3, 3, 7, 0, 3, 6, + 1, 3, 2, 8, 1, 2, 5, 1, 4, 5, 5, 1, 9, 1, 5, 2, 2, 8, 3, 6, 6, 8, 5, 1, 8, + 0, 6, 6, 4, 0, 6, 2, 5, 7, 2, 7, 5, 9, 5, 7, 6, 1, 4, 1, 8, 3, 4, 2, 5, 9, + 0, 3, 3, 2, 0, 3, 1, 2, 5, 3, 6, 3, 7, 9, 7, 8, 8, 0, 7, 0, 9, 1, 7, 1, 2, + 9, 5, 1, 6, 6, 0, 1, 5, 6, 2, 5, 1, 8, 1, 8, 9, 8, 9, 4, 0, 3, 5, 4, 5, 8, + 5, 6, 4, 7, 5, 8, 3, 0, 0, 7, 8, 1, 2, 5, 9, 0, 9, 4, 9, 4, 7, 0, 1, 7, 7, + 2, 9, 2, 8, 2, 3, 7, 9, 1, 5, 0, 3, 9, 0, 6, 2, 5, 4, 5, 4, 7, 4, 7, 3, 5, + 0, 8, 8, 6, 4, 6, 4, 1, 1, 8, 9, 5, 7, 5, 1, 9, 5, 3, 1, 2, 5, 2, 2, 7, 3, + 7, 3, 6, 7, 5, 4, 4, 3, 2, 3, 2, 0, 5, 9, 4, 7, 8, 7, 5, 9, 7, 6, 5, 6, 2, + 5, 1, 1, 3, 6, 8, 6, 8, 3, 7, 7, 2, 1, 6, 1, 6, 0, 2, 9, 7, 3, 9, 3, 7, 9, + 8, 8, 2, 8, 1, 2, 5, 5, 6, 8, 4, 3, 4, 1, 8, 8, 6, 0, 8, 0, 8, 0, 1, 4, 8, + 6, 9, 6, 8, 9, 9, 4, 1, 4, 0, 6, 2, 5, 2, 8, 4, 2, 1, 7, 0, 9, 4, 3, 0, 4, + 0, 4, 0, 0, 7, 4, 3, 4, 8, 4, 4, 9, 7, 0, 7, 0, 3, 1, 2, 5, 1, 4, 2, 1, 0, + 8, 5, 4, 7, 1, 5, 2, 0, 2, 0, 0, 3, 7, 1, 7, 4, 2, 2, 4, 8, 5, 3, 5, 1, 5, + 6, 2, 5, 7, 1, 0, 5, 4, 2, 7, 3, 5, 7, 6, 0, 1, 0, 0, 1, 8, 5, 8, 7, 1, 1, + 2, 4, 2, 6, 7, 5, 7, 8, 1, 2, 5, 3, 5, 5, 2, 7, 1, 3, 6, 7, 8, 8, 0, 0, 5, + 0, 0, 9, 2, 9, 3, 5, 5, 6, 2, 1, 3, 3, 7, 8, 9, 0, 6, 2, 5, 1, 7, 7, 6, 3, + 5, 6, 8, 3, 9, 4, 0, 0, 2, 5, 0, 4, 6, 4, 6, 7, 7, 8, 1, 0, 6, 6, 8, 9, 4, + 5, 3, 1, 2, 5, 8, 8, 8, 1, 7, 8, 4, 1, 9, 7, 0, 0, 1, 2, 5, 2, 3, 2, 3, 3, + 8, 9, 0, 5, 3, 3, 4, 4, 7, 2, 6, 5, 6, 2, 5, 4, 4, 4, 0, 8, 9, 2, 0, 9, 8, + 5, 0, 0, 6, 2, 6, 1, 6, 1, 6, 9, 4, 5, 2, 6, 6, 7, 2, 3, 6, 3, 2, 8, 1, 2, + 5, 2, 2, 2, 0, 4, 4, 6, 0, 4, 9, 2, 5, 0, 3, 1, 3, 0, 8, 0, 8, 4, 7, 2, 6, + 3, 3, 3, 6, 1, 8, 1, 6, 4, 0, 6, 2, 5, 1, 1, 1, 0, 2, 2, 3, 0, 2, 4, 6, 2, + 5, 1, 5, 6, 5, 4, 0, 4, 2, 3, 6, 3, 1, 6, 6, 8, 0, 9, 0, 8, 2, 0, 3, 1, 2, + 5, 5, 5, 5, 1, 1, 1, 5, 1, 2, 3, 1, 2, 5, 7, 8, 2, 7, 0, 2, 1, 1, 8, 1, 5, + 8, 3, 4, 0, 4, 5, 4, 1, 0, 1, 5, 6, 2, 5, 2, 7, 7, 5, 5, 5, 7, 5, 6, 1, 5, + 6, 2, 8, 9, 1, 3, 5, 1, 0, 5, 9, 0, 7, 9, 1, 7, 0, 2, 2, 7, 0, 5, 0, 7, 8, + 1, 2, 5, 1, 3, 8, 7, 7, 7, 8, 7, 8, 0, 7, 8, 1, 4, 4, 5, 6, 7, 5, 5, 2, 9, + 5, 3, 9, 5, 8, 5, 1, 1, 3, 5, 2, 5, 3, 9, 0, 6, 2, 5, 6, 9, 3, 8, 8, 9, 3, + 9, 0, 3, 9, 0, 7, 2, 2, 8, 3, 7, 7, 6, 4, 7, 6, 9, 7, 9, 2, 5, 5, 6, 7, 6, + 2, 6, 9, 5, 3, 1, 2, 5, 3, 4, 6, 9, 4, 4, 6, 9, 5, 1, 9, 5, 3, 6, 1, 4, 1, + 8, 8, 8, 2, 3, 8, 4, 8, 9, 6, 2, 7, 8, 3, 8, 1, 3, 4, 7, 6, 5, 6, 2, 5, 1, + 7, 3, 4, 7, 2, 3, 4, 7, 5, 9, 7, 6, 8, 0, 7, 0, 9, 4, 4, 1, 1, 9, 2, 4, 4, + 8, 1, 3, 9, 1, 9, 0, 6, 7, 3, 8, 2, 8, 1, 2, 5, 8, 6, 7, 3, 6, 1, 7, 3, 7, + 9, 8, 8, 4, 0, 3, 5, 4, 7, 2, 0, 5, 9, 6, 2, 2, 4, 0, 6, 9, 5, 9, 5, 3, 3, + 6, 9, 1, 4, 0, 6, 2, 5, }; -static const uint8_t wuffs_base__base_64__encode_url[64] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. - 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. - 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. - 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. - 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. - 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. - 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2D, 0x5F, // 0x38 ..= 0x3F. +// -------- + +// wuffs_private_impl__powers_of_10 contains truncated approximations to the +// powers of 10, ranging from 1e-307 to 1e+288 inclusive, as 596 pairs of +// uint64_t values (a 128-bit mantissa). +// +// There's also an implicit third column (implied by a linear formula involving +// the base-10 exponent) that is the base-2 exponent, biased by a magic +// constant. That constant (1214 or 0x04BE) equals 1023 + 191. 1023 is the bias +// for IEEE 754 double-precision floating point. 191 is ((3 * 64) - 1) and +// wuffs_private_impl__parse_number_f64_eisel_lemire works with +// multiples-of-64-bit mantissas. +// +// For example, the third row holds the approximation to 1e-305: +// 0xE0B62E29_29ABA83C_331ACDAB_FE94DE87 * (2 ** (0x0049 - 0x04BE)) +// +// Similarly, 1e+4 is approximated by: +// 0x9C400000_00000000_00000000_00000000 * (2 ** (0x044C - 0x04BE)) +// +// Similarly, 1e+68 is approximated by: +// 0xED63A231_D4C4FB27_4CA7AAA8_63EE4BDD * (2 ** (0x0520 - 0x04BE)) +// +// This table was generated by by script/print-mpb-powers-of-10.go +static const uint64_t wuffs_private_impl__powers_of_10[596][2] = { + {0xA5D3B6D479F8E056, 0x8FD0C16206306BAB}, // 1e-307 + {0x8F48A4899877186C, 0xB3C4F1BA87BC8696}, // 1e-306 + {0x331ACDABFE94DE87, 0xE0B62E2929ABA83C}, // 1e-305 + {0x9FF0C08B7F1D0B14, 0x8C71DCD9BA0B4925}, // 1e-304 + {0x07ECF0AE5EE44DD9, 0xAF8E5410288E1B6F}, // 1e-303 + {0xC9E82CD9F69D6150, 0xDB71E91432B1A24A}, // 1e-302 + {0xBE311C083A225CD2, 0x892731AC9FAF056E}, // 1e-301 + {0x6DBD630A48AAF406, 0xAB70FE17C79AC6CA}, // 1e-300 + {0x092CBBCCDAD5B108, 0xD64D3D9DB981787D}, // 1e-299 + {0x25BBF56008C58EA5, 0x85F0468293F0EB4E}, // 1e-298 + {0xAF2AF2B80AF6F24E, 0xA76C582338ED2621}, // 1e-297 + {0x1AF5AF660DB4AEE1, 0xD1476E2C07286FAA}, // 1e-296 + {0x50D98D9FC890ED4D, 0x82CCA4DB847945CA}, // 1e-295 + {0xE50FF107BAB528A0, 0xA37FCE126597973C}, // 1e-294 + {0x1E53ED49A96272C8, 0xCC5FC196FEFD7D0C}, // 1e-293 + {0x25E8E89C13BB0F7A, 0xFF77B1FCBEBCDC4F}, // 1e-292 + {0x77B191618C54E9AC, 0x9FAACF3DF73609B1}, // 1e-291 + {0xD59DF5B9EF6A2417, 0xC795830D75038C1D}, // 1e-290 + {0x4B0573286B44AD1D, 0xF97AE3D0D2446F25}, // 1e-289 + {0x4EE367F9430AEC32, 0x9BECCE62836AC577}, // 1e-288 + {0x229C41F793CDA73F, 0xC2E801FB244576D5}, // 1e-287 + {0x6B43527578C1110F, 0xF3A20279ED56D48A}, // 1e-286 + {0x830A13896B78AAA9, 0x9845418C345644D6}, // 1e-285 + {0x23CC986BC656D553, 0xBE5691EF416BD60C}, // 1e-284 + {0x2CBFBE86B7EC8AA8, 0xEDEC366B11C6CB8F}, // 1e-283 + {0x7BF7D71432F3D6A9, 0x94B3A202EB1C3F39}, // 1e-282 + {0xDAF5CCD93FB0CC53, 0xB9E08A83A5E34F07}, // 1e-281 + {0xD1B3400F8F9CFF68, 0xE858AD248F5C22C9}, // 1e-280 + {0x23100809B9C21FA1, 0x91376C36D99995BE}, // 1e-279 + {0xABD40A0C2832A78A, 0xB58547448FFFFB2D}, // 1e-278 + {0x16C90C8F323F516C, 0xE2E69915B3FFF9F9}, // 1e-277 + {0xAE3DA7D97F6792E3, 0x8DD01FAD907FFC3B}, // 1e-276 + {0x99CD11CFDF41779C, 0xB1442798F49FFB4A}, // 1e-275 + {0x40405643D711D583, 0xDD95317F31C7FA1D}, // 1e-274 + {0x482835EA666B2572, 0x8A7D3EEF7F1CFC52}, // 1e-273 + {0xDA3243650005EECF, 0xAD1C8EAB5EE43B66}, // 1e-272 + {0x90BED43E40076A82, 0xD863B256369D4A40}, // 1e-271 + {0x5A7744A6E804A291, 0x873E4F75E2224E68}, // 1e-270 + {0x711515D0A205CB36, 0xA90DE3535AAAE202}, // 1e-269 + {0x0D5A5B44CA873E03, 0xD3515C2831559A83}, // 1e-268 + {0xE858790AFE9486C2, 0x8412D9991ED58091}, // 1e-267 + {0x626E974DBE39A872, 0xA5178FFF668AE0B6}, // 1e-266 + {0xFB0A3D212DC8128F, 0xCE5D73FF402D98E3}, // 1e-265 + {0x7CE66634BC9D0B99, 0x80FA687F881C7F8E}, // 1e-264 + {0x1C1FFFC1EBC44E80, 0xA139029F6A239F72}, // 1e-263 + {0xA327FFB266B56220, 0xC987434744AC874E}, // 1e-262 + {0x4BF1FF9F0062BAA8, 0xFBE9141915D7A922}, // 1e-261 + {0x6F773FC3603DB4A9, 0x9D71AC8FADA6C9B5}, // 1e-260 + {0xCB550FB4384D21D3, 0xC4CE17B399107C22}, // 1e-259 + {0x7E2A53A146606A48, 0xF6019DA07F549B2B}, // 1e-258 + {0x2EDA7444CBFC426D, 0x99C102844F94E0FB}, // 1e-257 + {0xFA911155FEFB5308, 0xC0314325637A1939}, // 1e-256 + {0x793555AB7EBA27CA, 0xF03D93EEBC589F88}, // 1e-255 + {0x4BC1558B2F3458DE, 0x96267C7535B763B5}, // 1e-254 + {0x9EB1AAEDFB016F16, 0xBBB01B9283253CA2}, // 1e-253 + {0x465E15A979C1CADC, 0xEA9C227723EE8BCB}, // 1e-252 + {0x0BFACD89EC191EC9, 0x92A1958A7675175F}, // 1e-251 + {0xCEF980EC671F667B, 0xB749FAED14125D36}, // 1e-250 + {0x82B7E12780E7401A, 0xE51C79A85916F484}, // 1e-249 + {0xD1B2ECB8B0908810, 0x8F31CC0937AE58D2}, // 1e-248 + {0x861FA7E6DCB4AA15, 0xB2FE3F0B8599EF07}, // 1e-247 + {0x67A791E093E1D49A, 0xDFBDCECE67006AC9}, // 1e-246 + {0xE0C8BB2C5C6D24E0, 0x8BD6A141006042BD}, // 1e-245 + {0x58FAE9F773886E18, 0xAECC49914078536D}, // 1e-244 + {0xAF39A475506A899E, 0xDA7F5BF590966848}, // 1e-243 + {0x6D8406C952429603, 0x888F99797A5E012D}, // 1e-242 + {0xC8E5087BA6D33B83, 0xAAB37FD7D8F58178}, // 1e-241 + {0xFB1E4A9A90880A64, 0xD5605FCDCF32E1D6}, // 1e-240 + {0x5CF2EEA09A55067F, 0x855C3BE0A17FCD26}, // 1e-239 + {0xF42FAA48C0EA481E, 0xA6B34AD8C9DFC06F}, // 1e-238 + {0xF13B94DAF124DA26, 0xD0601D8EFC57B08B}, // 1e-237 + {0x76C53D08D6B70858, 0x823C12795DB6CE57}, // 1e-236 + {0x54768C4B0C64CA6E, 0xA2CB1717B52481ED}, // 1e-235 + {0xA9942F5DCF7DFD09, 0xCB7DDCDDA26DA268}, // 1e-234 + {0xD3F93B35435D7C4C, 0xFE5D54150B090B02}, // 1e-233 + {0xC47BC5014A1A6DAF, 0x9EFA548D26E5A6E1}, // 1e-232 + {0x359AB6419CA1091B, 0xC6B8E9B0709F109A}, // 1e-231 + {0xC30163D203C94B62, 0xF867241C8CC6D4C0}, // 1e-230 + {0x79E0DE63425DCF1D, 0x9B407691D7FC44F8}, // 1e-229 + {0x985915FC12F542E4, 0xC21094364DFB5636}, // 1e-228 + {0x3E6F5B7B17B2939D, 0xF294B943E17A2BC4}, // 1e-227 + {0xA705992CEECF9C42, 0x979CF3CA6CEC5B5A}, // 1e-226 + {0x50C6FF782A838353, 0xBD8430BD08277231}, // 1e-225 + {0xA4F8BF5635246428, 0xECE53CEC4A314EBD}, // 1e-224 + {0x871B7795E136BE99, 0x940F4613AE5ED136}, // 1e-223 + {0x28E2557B59846E3F, 0xB913179899F68584}, // 1e-222 + {0x331AEADA2FE589CF, 0xE757DD7EC07426E5}, // 1e-221 + {0x3FF0D2C85DEF7621, 0x9096EA6F3848984F}, // 1e-220 + {0x0FED077A756B53A9, 0xB4BCA50B065ABE63}, // 1e-219 + {0xD3E8495912C62894, 0xE1EBCE4DC7F16DFB}, // 1e-218 + {0x64712DD7ABBBD95C, 0x8D3360F09CF6E4BD}, // 1e-217 + {0xBD8D794D96AACFB3, 0xB080392CC4349DEC}, // 1e-216 + {0xECF0D7A0FC5583A0, 0xDCA04777F541C567}, // 1e-215 + {0xF41686C49DB57244, 0x89E42CAAF9491B60}, // 1e-214 + {0x311C2875C522CED5, 0xAC5D37D5B79B6239}, // 1e-213 + {0x7D633293366B828B, 0xD77485CB25823AC7}, // 1e-212 + {0xAE5DFF9C02033197, 0x86A8D39EF77164BC}, // 1e-211 + {0xD9F57F830283FDFC, 0xA8530886B54DBDEB}, // 1e-210 + {0xD072DF63C324FD7B, 0xD267CAA862A12D66}, // 1e-209 + {0x4247CB9E59F71E6D, 0x8380DEA93DA4BC60}, // 1e-208 + {0x52D9BE85F074E608, 0xA46116538D0DEB78}, // 1e-207 + {0x67902E276C921F8B, 0xCD795BE870516656}, // 1e-206 + {0x00BA1CD8A3DB53B6, 0x806BD9714632DFF6}, // 1e-205 + {0x80E8A40ECCD228A4, 0xA086CFCD97BF97F3}, // 1e-204 + {0x6122CD128006B2CD, 0xC8A883C0FDAF7DF0}, // 1e-203 + {0x796B805720085F81, 0xFAD2A4B13D1B5D6C}, // 1e-202 + {0xCBE3303674053BB0, 0x9CC3A6EEC6311A63}, // 1e-201 + {0xBEDBFC4411068A9C, 0xC3F490AA77BD60FC}, // 1e-200 + {0xEE92FB5515482D44, 0xF4F1B4D515ACB93B}, // 1e-199 + {0x751BDD152D4D1C4A, 0x991711052D8BF3C5}, // 1e-198 + {0xD262D45A78A0635D, 0xBF5CD54678EEF0B6}, // 1e-197 + {0x86FB897116C87C34, 0xEF340A98172AACE4}, // 1e-196 + {0xD45D35E6AE3D4DA0, 0x9580869F0E7AAC0E}, // 1e-195 + {0x8974836059CCA109, 0xBAE0A846D2195712}, // 1e-194 + {0x2BD1A438703FC94B, 0xE998D258869FACD7}, // 1e-193 + {0x7B6306A34627DDCF, 0x91FF83775423CC06}, // 1e-192 + {0x1A3BC84C17B1D542, 0xB67F6455292CBF08}, // 1e-191 + {0x20CABA5F1D9E4A93, 0xE41F3D6A7377EECA}, // 1e-190 + {0x547EB47B7282EE9C, 0x8E938662882AF53E}, // 1e-189 + {0xE99E619A4F23AA43, 0xB23867FB2A35B28D}, // 1e-188 + {0x6405FA00E2EC94D4, 0xDEC681F9F4C31F31}, // 1e-187 + {0xDE83BC408DD3DD04, 0x8B3C113C38F9F37E}, // 1e-186 + {0x9624AB50B148D445, 0xAE0B158B4738705E}, // 1e-185 + {0x3BADD624DD9B0957, 0xD98DDAEE19068C76}, // 1e-184 + {0xE54CA5D70A80E5D6, 0x87F8A8D4CFA417C9}, // 1e-183 + {0x5E9FCF4CCD211F4C, 0xA9F6D30A038D1DBC}, // 1e-182 + {0x7647C3200069671F, 0xD47487CC8470652B}, // 1e-181 + {0x29ECD9F40041E073, 0x84C8D4DFD2C63F3B}, // 1e-180 + {0xF468107100525890, 0xA5FB0A17C777CF09}, // 1e-179 + {0x7182148D4066EEB4, 0xCF79CC9DB955C2CC}, // 1e-178 + {0xC6F14CD848405530, 0x81AC1FE293D599BF}, // 1e-177 + {0xB8ADA00E5A506A7C, 0xA21727DB38CB002F}, // 1e-176 + {0xA6D90811F0E4851C, 0xCA9CF1D206FDC03B}, // 1e-175 + {0x908F4A166D1DA663, 0xFD442E4688BD304A}, // 1e-174 + {0x9A598E4E043287FE, 0x9E4A9CEC15763E2E}, // 1e-173 + {0x40EFF1E1853F29FD, 0xC5DD44271AD3CDBA}, // 1e-172 + {0xD12BEE59E68EF47C, 0xF7549530E188C128}, // 1e-171 + {0x82BB74F8301958CE, 0x9A94DD3E8CF578B9}, // 1e-170 + {0xE36A52363C1FAF01, 0xC13A148E3032D6E7}, // 1e-169 + {0xDC44E6C3CB279AC1, 0xF18899B1BC3F8CA1}, // 1e-168 + {0x29AB103A5EF8C0B9, 0x96F5600F15A7B7E5}, // 1e-167 + {0x7415D448F6B6F0E7, 0xBCB2B812DB11A5DE}, // 1e-166 + {0x111B495B3464AD21, 0xEBDF661791D60F56}, // 1e-165 + {0xCAB10DD900BEEC34, 0x936B9FCEBB25C995}, // 1e-164 + {0x3D5D514F40EEA742, 0xB84687C269EF3BFB}, // 1e-163 + {0x0CB4A5A3112A5112, 0xE65829B3046B0AFA}, // 1e-162 + {0x47F0E785EABA72AB, 0x8FF71A0FE2C2E6DC}, // 1e-161 + {0x59ED216765690F56, 0xB3F4E093DB73A093}, // 1e-160 + {0x306869C13EC3532C, 0xE0F218B8D25088B8}, // 1e-159 + {0x1E414218C73A13FB, 0x8C974F7383725573}, // 1e-158 + {0xE5D1929EF90898FA, 0xAFBD2350644EEACF}, // 1e-157 + {0xDF45F746B74ABF39, 0xDBAC6C247D62A583}, // 1e-156 + {0x6B8BBA8C328EB783, 0x894BC396CE5DA772}, // 1e-155 + {0x066EA92F3F326564, 0xAB9EB47C81F5114F}, // 1e-154 + {0xC80A537B0EFEFEBD, 0xD686619BA27255A2}, // 1e-153 + {0xBD06742CE95F5F36, 0x8613FD0145877585}, // 1e-152 + {0x2C48113823B73704, 0xA798FC4196E952E7}, // 1e-151 + {0xF75A15862CA504C5, 0xD17F3B51FCA3A7A0}, // 1e-150 + {0x9A984D73DBE722FB, 0x82EF85133DE648C4}, // 1e-149 + {0xC13E60D0D2E0EBBA, 0xA3AB66580D5FDAF5}, // 1e-148 + {0x318DF905079926A8, 0xCC963FEE10B7D1B3}, // 1e-147 + {0xFDF17746497F7052, 0xFFBBCFE994E5C61F}, // 1e-146 + {0xFEB6EA8BEDEFA633, 0x9FD561F1FD0F9BD3}, // 1e-145 + {0xFE64A52EE96B8FC0, 0xC7CABA6E7C5382C8}, // 1e-144 + {0x3DFDCE7AA3C673B0, 0xF9BD690A1B68637B}, // 1e-143 + {0x06BEA10CA65C084E, 0x9C1661A651213E2D}, // 1e-142 + {0x486E494FCFF30A62, 0xC31BFA0FE5698DB8}, // 1e-141 + {0x5A89DBA3C3EFCCFA, 0xF3E2F893DEC3F126}, // 1e-140 + {0xF89629465A75E01C, 0x986DDB5C6B3A76B7}, // 1e-139 + {0xF6BBB397F1135823, 0xBE89523386091465}, // 1e-138 + {0x746AA07DED582E2C, 0xEE2BA6C0678B597F}, // 1e-137 + {0xA8C2A44EB4571CDC, 0x94DB483840B717EF}, // 1e-136 + {0x92F34D62616CE413, 0xBA121A4650E4DDEB}, // 1e-135 + {0x77B020BAF9C81D17, 0xE896A0D7E51E1566}, // 1e-134 + {0x0ACE1474DC1D122E, 0x915E2486EF32CD60}, // 1e-133 + {0x0D819992132456BA, 0xB5B5ADA8AAFF80B8}, // 1e-132 + {0x10E1FFF697ED6C69, 0xE3231912D5BF60E6}, // 1e-131 + {0xCA8D3FFA1EF463C1, 0x8DF5EFABC5979C8F}, // 1e-130 + {0xBD308FF8A6B17CB2, 0xB1736B96B6FD83B3}, // 1e-129 + {0xAC7CB3F6D05DDBDE, 0xDDD0467C64BCE4A0}, // 1e-128 + {0x6BCDF07A423AA96B, 0x8AA22C0DBEF60EE4}, // 1e-127 + {0x86C16C98D2C953C6, 0xAD4AB7112EB3929D}, // 1e-126 + {0xE871C7BF077BA8B7, 0xD89D64D57A607744}, // 1e-125 + {0x11471CD764AD4972, 0x87625F056C7C4A8B}, // 1e-124 + {0xD598E40D3DD89BCF, 0xA93AF6C6C79B5D2D}, // 1e-123 + {0x4AFF1D108D4EC2C3, 0xD389B47879823479}, // 1e-122 + {0xCEDF722A585139BA, 0x843610CB4BF160CB}, // 1e-121 + {0xC2974EB4EE658828, 0xA54394FE1EEDB8FE}, // 1e-120 + {0x733D226229FEEA32, 0xCE947A3DA6A9273E}, // 1e-119 + {0x0806357D5A3F525F, 0x811CCC668829B887}, // 1e-118 + {0xCA07C2DCB0CF26F7, 0xA163FF802A3426A8}, // 1e-117 + {0xFC89B393DD02F0B5, 0xC9BCFF6034C13052}, // 1e-116 + {0xBBAC2078D443ACE2, 0xFC2C3F3841F17C67}, // 1e-115 + {0xD54B944B84AA4C0D, 0x9D9BA7832936EDC0}, // 1e-114 + {0x0A9E795E65D4DF11, 0xC5029163F384A931}, // 1e-113 + {0x4D4617B5FF4A16D5, 0xF64335BCF065D37D}, // 1e-112 + {0x504BCED1BF8E4E45, 0x99EA0196163FA42E}, // 1e-111 + {0xE45EC2862F71E1D6, 0xC06481FB9BCF8D39}, // 1e-110 + {0x5D767327BB4E5A4C, 0xF07DA27A82C37088}, // 1e-109 + {0x3A6A07F8D510F86F, 0x964E858C91BA2655}, // 1e-108 + {0x890489F70A55368B, 0xBBE226EFB628AFEA}, // 1e-107 + {0x2B45AC74CCEA842E, 0xEADAB0ABA3B2DBE5}, // 1e-106 + {0x3B0B8BC90012929D, 0x92C8AE6B464FC96F}, // 1e-105 + {0x09CE6EBB40173744, 0xB77ADA0617E3BBCB}, // 1e-104 + {0xCC420A6A101D0515, 0xE55990879DDCAABD}, // 1e-103 + {0x9FA946824A12232D, 0x8F57FA54C2A9EAB6}, // 1e-102 + {0x47939822DC96ABF9, 0xB32DF8E9F3546564}, // 1e-101 + {0x59787E2B93BC56F7, 0xDFF9772470297EBD}, // 1e-100 + {0x57EB4EDB3C55B65A, 0x8BFBEA76C619EF36}, // 1e-99 + {0xEDE622920B6B23F1, 0xAEFAE51477A06B03}, // 1e-98 + {0xE95FAB368E45ECED, 0xDAB99E59958885C4}, // 1e-97 + {0x11DBCB0218EBB414, 0x88B402F7FD75539B}, // 1e-96 + {0xD652BDC29F26A119, 0xAAE103B5FCD2A881}, // 1e-95 + {0x4BE76D3346F0495F, 0xD59944A37C0752A2}, // 1e-94 + {0x6F70A4400C562DDB, 0x857FCAE62D8493A5}, // 1e-93 + {0xCB4CCD500F6BB952, 0xA6DFBD9FB8E5B88E}, // 1e-92 + {0x7E2000A41346A7A7, 0xD097AD07A71F26B2}, // 1e-91 + {0x8ED400668C0C28C8, 0x825ECC24C873782F}, // 1e-90 + {0x728900802F0F32FA, 0xA2F67F2DFA90563B}, // 1e-89 + {0x4F2B40A03AD2FFB9, 0xCBB41EF979346BCA}, // 1e-88 + {0xE2F610C84987BFA8, 0xFEA126B7D78186BC}, // 1e-87 + {0x0DD9CA7D2DF4D7C9, 0x9F24B832E6B0F436}, // 1e-86 + {0x91503D1C79720DBB, 0xC6EDE63FA05D3143}, // 1e-85 + {0x75A44C6397CE912A, 0xF8A95FCF88747D94}, // 1e-84 + {0xC986AFBE3EE11ABA, 0x9B69DBE1B548CE7C}, // 1e-83 + {0xFBE85BADCE996168, 0xC24452DA229B021B}, // 1e-82 + {0xFAE27299423FB9C3, 0xF2D56790AB41C2A2}, // 1e-81 + {0xDCCD879FC967D41A, 0x97C560BA6B0919A5}, // 1e-80 + {0x5400E987BBC1C920, 0xBDB6B8E905CB600F}, // 1e-79 + {0x290123E9AAB23B68, 0xED246723473E3813}, // 1e-78 + {0xF9A0B6720AAF6521, 0x9436C0760C86E30B}, // 1e-77 + {0xF808E40E8D5B3E69, 0xB94470938FA89BCE}, // 1e-76 + {0xB60B1D1230B20E04, 0xE7958CB87392C2C2}, // 1e-75 + {0xB1C6F22B5E6F48C2, 0x90BD77F3483BB9B9}, // 1e-74 + {0x1E38AEB6360B1AF3, 0xB4ECD5F01A4AA828}, // 1e-73 + {0x25C6DA63C38DE1B0, 0xE2280B6C20DD5232}, // 1e-72 + {0x579C487E5A38AD0E, 0x8D590723948A535F}, // 1e-71 + {0x2D835A9DF0C6D851, 0xB0AF48EC79ACE837}, // 1e-70 + {0xF8E431456CF88E65, 0xDCDB1B2798182244}, // 1e-69 + {0x1B8E9ECB641B58FF, 0x8A08F0F8BF0F156B}, // 1e-68 + {0xE272467E3D222F3F, 0xAC8B2D36EED2DAC5}, // 1e-67 + {0x5B0ED81DCC6ABB0F, 0xD7ADF884AA879177}, // 1e-66 + {0x98E947129FC2B4E9, 0x86CCBB52EA94BAEA}, // 1e-65 + {0x3F2398D747B36224, 0xA87FEA27A539E9A5}, // 1e-64 + {0x8EEC7F0D19A03AAD, 0xD29FE4B18E88640E}, // 1e-63 + {0x1953CF68300424AC, 0x83A3EEEEF9153E89}, // 1e-62 + {0x5FA8C3423C052DD7, 0xA48CEAAAB75A8E2B}, // 1e-61 + {0x3792F412CB06794D, 0xCDB02555653131B6}, // 1e-60 + {0xE2BBD88BBEE40BD0, 0x808E17555F3EBF11}, // 1e-59 + {0x5B6ACEAEAE9D0EC4, 0xA0B19D2AB70E6ED6}, // 1e-58 + {0xF245825A5A445275, 0xC8DE047564D20A8B}, // 1e-57 + {0xEED6E2F0F0D56712, 0xFB158592BE068D2E}, // 1e-56 + {0x55464DD69685606B, 0x9CED737BB6C4183D}, // 1e-55 + {0xAA97E14C3C26B886, 0xC428D05AA4751E4C}, // 1e-54 + {0xD53DD99F4B3066A8, 0xF53304714D9265DF}, // 1e-53 + {0xE546A8038EFE4029, 0x993FE2C6D07B7FAB}, // 1e-52 + {0xDE98520472BDD033, 0xBF8FDB78849A5F96}, // 1e-51 + {0x963E66858F6D4440, 0xEF73D256A5C0F77C}, // 1e-50 + {0xDDE7001379A44AA8, 0x95A8637627989AAD}, // 1e-49 + {0x5560C018580D5D52, 0xBB127C53B17EC159}, // 1e-48 + {0xAAB8F01E6E10B4A6, 0xE9D71B689DDE71AF}, // 1e-47 + {0xCAB3961304CA70E8, 0x9226712162AB070D}, // 1e-46 + {0x3D607B97C5FD0D22, 0xB6B00D69BB55C8D1}, // 1e-45 + {0x8CB89A7DB77C506A, 0xE45C10C42A2B3B05}, // 1e-44 + {0x77F3608E92ADB242, 0x8EB98A7A9A5B04E3}, // 1e-43 + {0x55F038B237591ED3, 0xB267ED1940F1C61C}, // 1e-42 + {0x6B6C46DEC52F6688, 0xDF01E85F912E37A3}, // 1e-41 + {0x2323AC4B3B3DA015, 0x8B61313BBABCE2C6}, // 1e-40 + {0xABEC975E0A0D081A, 0xAE397D8AA96C1B77}, // 1e-39 + {0x96E7BD358C904A21, 0xD9C7DCED53C72255}, // 1e-38 + {0x7E50D64177DA2E54, 0x881CEA14545C7575}, // 1e-37 + {0xDDE50BD1D5D0B9E9, 0xAA242499697392D2}, // 1e-36 + {0x955E4EC64B44E864, 0xD4AD2DBFC3D07787}, // 1e-35 + {0xBD5AF13BEF0B113E, 0x84EC3C97DA624AB4}, // 1e-34 + {0xECB1AD8AEACDD58E, 0xA6274BBDD0FADD61}, // 1e-33 + {0x67DE18EDA5814AF2, 0xCFB11EAD453994BA}, // 1e-32 + {0x80EACF948770CED7, 0x81CEB32C4B43FCF4}, // 1e-31 + {0xA1258379A94D028D, 0xA2425FF75E14FC31}, // 1e-30 + {0x096EE45813A04330, 0xCAD2F7F5359A3B3E}, // 1e-29 + {0x8BCA9D6E188853FC, 0xFD87B5F28300CA0D}, // 1e-28 + {0x775EA264CF55347D, 0x9E74D1B791E07E48}, // 1e-27 + {0x95364AFE032A819D, 0xC612062576589DDA}, // 1e-26 + {0x3A83DDBD83F52204, 0xF79687AED3EEC551}, // 1e-25 + {0xC4926A9672793542, 0x9ABE14CD44753B52}, // 1e-24 + {0x75B7053C0F178293, 0xC16D9A0095928A27}, // 1e-23 + {0x5324C68B12DD6338, 0xF1C90080BAF72CB1}, // 1e-22 + {0xD3F6FC16EBCA5E03, 0x971DA05074DA7BEE}, // 1e-21 + {0x88F4BB1CA6BCF584, 0xBCE5086492111AEA}, // 1e-20 + {0x2B31E9E3D06C32E5, 0xEC1E4A7DB69561A5}, // 1e-19 + {0x3AFF322E62439FCF, 0x9392EE8E921D5D07}, // 1e-18 + {0x09BEFEB9FAD487C2, 0xB877AA3236A4B449}, // 1e-17 + {0x4C2EBE687989A9B3, 0xE69594BEC44DE15B}, // 1e-16 + {0x0F9D37014BF60A10, 0x901D7CF73AB0ACD9}, // 1e-15 + {0x538484C19EF38C94, 0xB424DC35095CD80F}, // 1e-14 + {0x2865A5F206B06FB9, 0xE12E13424BB40E13}, // 1e-13 + {0xF93F87B7442E45D3, 0x8CBCCC096F5088CB}, // 1e-12 + {0xF78F69A51539D748, 0xAFEBFF0BCB24AAFE}, // 1e-11 + {0xB573440E5A884D1B, 0xDBE6FECEBDEDD5BE}, // 1e-10 + {0x31680A88F8953030, 0x89705F4136B4A597}, // 1e-9 + {0xFDC20D2B36BA7C3D, 0xABCC77118461CEFC}, // 1e-8 + {0x3D32907604691B4C, 0xD6BF94D5E57A42BC}, // 1e-7 + {0xA63F9A49C2C1B10F, 0x8637BD05AF6C69B5}, // 1e-6 + {0x0FCF80DC33721D53, 0xA7C5AC471B478423}, // 1e-5 + {0xD3C36113404EA4A8, 0xD1B71758E219652B}, // 1e-4 + {0x645A1CAC083126E9, 0x83126E978D4FDF3B}, // 1e-3 + {0x3D70A3D70A3D70A3, 0xA3D70A3D70A3D70A}, // 1e-2 + {0xCCCCCCCCCCCCCCCC, 0xCCCCCCCCCCCCCCCC}, // 1e-1 + {0x0000000000000000, 0x8000000000000000}, // 1e0 + {0x0000000000000000, 0xA000000000000000}, // 1e1 + {0x0000000000000000, 0xC800000000000000}, // 1e2 + {0x0000000000000000, 0xFA00000000000000}, // 1e3 + {0x0000000000000000, 0x9C40000000000000}, // 1e4 + {0x0000000000000000, 0xC350000000000000}, // 1e5 + {0x0000000000000000, 0xF424000000000000}, // 1e6 + {0x0000000000000000, 0x9896800000000000}, // 1e7 + {0x0000000000000000, 0xBEBC200000000000}, // 1e8 + {0x0000000000000000, 0xEE6B280000000000}, // 1e9 + {0x0000000000000000, 0x9502F90000000000}, // 1e10 + {0x0000000000000000, 0xBA43B74000000000}, // 1e11 + {0x0000000000000000, 0xE8D4A51000000000}, // 1e12 + {0x0000000000000000, 0x9184E72A00000000}, // 1e13 + {0x0000000000000000, 0xB5E620F480000000}, // 1e14 + {0x0000000000000000, 0xE35FA931A0000000}, // 1e15 + {0x0000000000000000, 0x8E1BC9BF04000000}, // 1e16 + {0x0000000000000000, 0xB1A2BC2EC5000000}, // 1e17 + {0x0000000000000000, 0xDE0B6B3A76400000}, // 1e18 + {0x0000000000000000, 0x8AC7230489E80000}, // 1e19 + {0x0000000000000000, 0xAD78EBC5AC620000}, // 1e20 + {0x0000000000000000, 0xD8D726B7177A8000}, // 1e21 + {0x0000000000000000, 0x878678326EAC9000}, // 1e22 + {0x0000000000000000, 0xA968163F0A57B400}, // 1e23 + {0x0000000000000000, 0xD3C21BCECCEDA100}, // 1e24 + {0x0000000000000000, 0x84595161401484A0}, // 1e25 + {0x0000000000000000, 0xA56FA5B99019A5C8}, // 1e26 + {0x0000000000000000, 0xCECB8F27F4200F3A}, // 1e27 + {0x4000000000000000, 0x813F3978F8940984}, // 1e28 + {0x5000000000000000, 0xA18F07D736B90BE5}, // 1e29 + {0xA400000000000000, 0xC9F2C9CD04674EDE}, // 1e30 + {0x4D00000000000000, 0xFC6F7C4045812296}, // 1e31 + {0xF020000000000000, 0x9DC5ADA82B70B59D}, // 1e32 + {0x6C28000000000000, 0xC5371912364CE305}, // 1e33 + {0xC732000000000000, 0xF684DF56C3E01BC6}, // 1e34 + {0x3C7F400000000000, 0x9A130B963A6C115C}, // 1e35 + {0x4B9F100000000000, 0xC097CE7BC90715B3}, // 1e36 + {0x1E86D40000000000, 0xF0BDC21ABB48DB20}, // 1e37 + {0x1314448000000000, 0x96769950B50D88F4}, // 1e38 + {0x17D955A000000000, 0xBC143FA4E250EB31}, // 1e39 + {0x5DCFAB0800000000, 0xEB194F8E1AE525FD}, // 1e40 + {0x5AA1CAE500000000, 0x92EFD1B8D0CF37BE}, // 1e41 + {0xF14A3D9E40000000, 0xB7ABC627050305AD}, // 1e42 + {0x6D9CCD05D0000000, 0xE596B7B0C643C719}, // 1e43 + {0xE4820023A2000000, 0x8F7E32CE7BEA5C6F}, // 1e44 + {0xDDA2802C8A800000, 0xB35DBF821AE4F38B}, // 1e45 + {0xD50B2037AD200000, 0xE0352F62A19E306E}, // 1e46 + {0x4526F422CC340000, 0x8C213D9DA502DE45}, // 1e47 + {0x9670B12B7F410000, 0xAF298D050E4395D6}, // 1e48 + {0x3C0CDD765F114000, 0xDAF3F04651D47B4C}, // 1e49 + {0xA5880A69FB6AC800, 0x88D8762BF324CD0F}, // 1e50 + {0x8EEA0D047A457A00, 0xAB0E93B6EFEE0053}, // 1e51 + {0x72A4904598D6D880, 0xD5D238A4ABE98068}, // 1e52 + {0x47A6DA2B7F864750, 0x85A36366EB71F041}, // 1e53 + {0x999090B65F67D924, 0xA70C3C40A64E6C51}, // 1e54 + {0xFFF4B4E3F741CF6D, 0xD0CF4B50CFE20765}, // 1e55 + {0xBFF8F10E7A8921A4, 0x82818F1281ED449F}, // 1e56 + {0xAFF72D52192B6A0D, 0xA321F2D7226895C7}, // 1e57 + {0x9BF4F8A69F764490, 0xCBEA6F8CEB02BB39}, // 1e58 + {0x02F236D04753D5B4, 0xFEE50B7025C36A08}, // 1e59 + {0x01D762422C946590, 0x9F4F2726179A2245}, // 1e60 + {0x424D3AD2B7B97EF5, 0xC722F0EF9D80AAD6}, // 1e61 + {0xD2E0898765A7DEB2, 0xF8EBAD2B84E0D58B}, // 1e62 + {0x63CC55F49F88EB2F, 0x9B934C3B330C8577}, // 1e63 + {0x3CBF6B71C76B25FB, 0xC2781F49FFCFA6D5}, // 1e64 + {0x8BEF464E3945EF7A, 0xF316271C7FC3908A}, // 1e65 + {0x97758BF0E3CBB5AC, 0x97EDD871CFDA3A56}, // 1e66 + {0x3D52EEED1CBEA317, 0xBDE94E8E43D0C8EC}, // 1e67 + {0x4CA7AAA863EE4BDD, 0xED63A231D4C4FB27}, // 1e68 + {0x8FE8CAA93E74EF6A, 0x945E455F24FB1CF8}, // 1e69 + {0xB3E2FD538E122B44, 0xB975D6B6EE39E436}, // 1e70 + {0x60DBBCA87196B616, 0xE7D34C64A9C85D44}, // 1e71 + {0xBC8955E946FE31CD, 0x90E40FBEEA1D3A4A}, // 1e72 + {0x6BABAB6398BDBE41, 0xB51D13AEA4A488DD}, // 1e73 + {0xC696963C7EED2DD1, 0xE264589A4DCDAB14}, // 1e74 + {0xFC1E1DE5CF543CA2, 0x8D7EB76070A08AEC}, // 1e75 + {0x3B25A55F43294BCB, 0xB0DE65388CC8ADA8}, // 1e76 + {0x49EF0EB713F39EBE, 0xDD15FE86AFFAD912}, // 1e77 + {0x6E3569326C784337, 0x8A2DBF142DFCC7AB}, // 1e78 + {0x49C2C37F07965404, 0xACB92ED9397BF996}, // 1e79 + {0xDC33745EC97BE906, 0xD7E77A8F87DAF7FB}, // 1e80 + {0x69A028BB3DED71A3, 0x86F0AC99B4E8DAFD}, // 1e81 + {0xC40832EA0D68CE0C, 0xA8ACD7C0222311BC}, // 1e82 + {0xF50A3FA490C30190, 0xD2D80DB02AABD62B}, // 1e83 + {0x792667C6DA79E0FA, 0x83C7088E1AAB65DB}, // 1e84 + {0x577001B891185938, 0xA4B8CAB1A1563F52}, // 1e85 + {0xED4C0226B55E6F86, 0xCDE6FD5E09ABCF26}, // 1e86 + {0x544F8158315B05B4, 0x80B05E5AC60B6178}, // 1e87 + {0x696361AE3DB1C721, 0xA0DC75F1778E39D6}, // 1e88 + {0x03BC3A19CD1E38E9, 0xC913936DD571C84C}, // 1e89 + {0x04AB48A04065C723, 0xFB5878494ACE3A5F}, // 1e90 + {0x62EB0D64283F9C76, 0x9D174B2DCEC0E47B}, // 1e91 + {0x3BA5D0BD324F8394, 0xC45D1DF942711D9A}, // 1e92 + {0xCA8F44EC7EE36479, 0xF5746577930D6500}, // 1e93 + {0x7E998B13CF4E1ECB, 0x9968BF6ABBE85F20}, // 1e94 + {0x9E3FEDD8C321A67E, 0xBFC2EF456AE276E8}, // 1e95 + {0xC5CFE94EF3EA101E, 0xEFB3AB16C59B14A2}, // 1e96 + {0xBBA1F1D158724A12, 0x95D04AEE3B80ECE5}, // 1e97 + {0x2A8A6E45AE8EDC97, 0xBB445DA9CA61281F}, // 1e98 + {0xF52D09D71A3293BD, 0xEA1575143CF97226}, // 1e99 + {0x593C2626705F9C56, 0x924D692CA61BE758}, // 1e100 + {0x6F8B2FB00C77836C, 0xB6E0C377CFA2E12E}, // 1e101 + {0x0B6DFB9C0F956447, 0xE498F455C38B997A}, // 1e102 + {0x4724BD4189BD5EAC, 0x8EDF98B59A373FEC}, // 1e103 + {0x58EDEC91EC2CB657, 0xB2977EE300C50FE7}, // 1e104 + {0x2F2967B66737E3ED, 0xDF3D5E9BC0F653E1}, // 1e105 + {0xBD79E0D20082EE74, 0x8B865B215899F46C}, // 1e106 + {0xECD8590680A3AA11, 0xAE67F1E9AEC07187}, // 1e107 + {0xE80E6F4820CC9495, 0xDA01EE641A708DE9}, // 1e108 + {0x3109058D147FDCDD, 0x884134FE908658B2}, // 1e109 + {0xBD4B46F0599FD415, 0xAA51823E34A7EEDE}, // 1e110 + {0x6C9E18AC7007C91A, 0xD4E5E2CDC1D1EA96}, // 1e111 + {0x03E2CF6BC604DDB0, 0x850FADC09923329E}, // 1e112 + {0x84DB8346B786151C, 0xA6539930BF6BFF45}, // 1e113 + {0xE612641865679A63, 0xCFE87F7CEF46FF16}, // 1e114 + {0x4FCB7E8F3F60C07E, 0x81F14FAE158C5F6E}, // 1e115 + {0xE3BE5E330F38F09D, 0xA26DA3999AEF7749}, // 1e116 + {0x5CADF5BFD3072CC5, 0xCB090C8001AB551C}, // 1e117 + {0x73D9732FC7C8F7F6, 0xFDCB4FA002162A63}, // 1e118 + {0x2867E7FDDCDD9AFA, 0x9E9F11C4014DDA7E}, // 1e119 + {0xB281E1FD541501B8, 0xC646D63501A1511D}, // 1e120 + {0x1F225A7CA91A4226, 0xF7D88BC24209A565}, // 1e121 + {0x3375788DE9B06958, 0x9AE757596946075F}, // 1e122 + {0x0052D6B1641C83AE, 0xC1A12D2FC3978937}, // 1e123 + {0xC0678C5DBD23A49A, 0xF209787BB47D6B84}, // 1e124 + {0xF840B7BA963646E0, 0x9745EB4D50CE6332}, // 1e125 + {0xB650E5A93BC3D898, 0xBD176620A501FBFF}, // 1e126 + {0xA3E51F138AB4CEBE, 0xEC5D3FA8CE427AFF}, // 1e127 + {0xC66F336C36B10137, 0x93BA47C980E98CDF}, // 1e128 + {0xB80B0047445D4184, 0xB8A8D9BBE123F017}, // 1e129 + {0xA60DC059157491E5, 0xE6D3102AD96CEC1D}, // 1e130 + {0x87C89837AD68DB2F, 0x9043EA1AC7E41392}, // 1e131 + {0x29BABE4598C311FB, 0xB454E4A179DD1877}, // 1e132 + {0xF4296DD6FEF3D67A, 0xE16A1DC9D8545E94}, // 1e133 + {0x1899E4A65F58660C, 0x8CE2529E2734BB1D}, // 1e134 + {0x5EC05DCFF72E7F8F, 0xB01AE745B101E9E4}, // 1e135 + {0x76707543F4FA1F73, 0xDC21A1171D42645D}, // 1e136 + {0x6A06494A791C53A8, 0x899504AE72497EBA}, // 1e137 + {0x0487DB9D17636892, 0xABFA45DA0EDBDE69}, // 1e138 + {0x45A9D2845D3C42B6, 0xD6F8D7509292D603}, // 1e139 + {0x0B8A2392BA45A9B2, 0x865B86925B9BC5C2}, // 1e140 + {0x8E6CAC7768D7141E, 0xA7F26836F282B732}, // 1e141 + {0x3207D795430CD926, 0xD1EF0244AF2364FF}, // 1e142 + {0x7F44E6BD49E807B8, 0x8335616AED761F1F}, // 1e143 + {0x5F16206C9C6209A6, 0xA402B9C5A8D3A6E7}, // 1e144 + {0x36DBA887C37A8C0F, 0xCD036837130890A1}, // 1e145 + {0xC2494954DA2C9789, 0x802221226BE55A64}, // 1e146 + {0xF2DB9BAA10B7BD6C, 0xA02AA96B06DEB0FD}, // 1e147 + {0x6F92829494E5ACC7, 0xC83553C5C8965D3D}, // 1e148 + {0xCB772339BA1F17F9, 0xFA42A8B73ABBF48C}, // 1e149 + {0xFF2A760414536EFB, 0x9C69A97284B578D7}, // 1e150 + {0xFEF5138519684ABA, 0xC38413CF25E2D70D}, // 1e151 + {0x7EB258665FC25D69, 0xF46518C2EF5B8CD1}, // 1e152 + {0xEF2F773FFBD97A61, 0x98BF2F79D5993802}, // 1e153 + {0xAAFB550FFACFD8FA, 0xBEEEFB584AFF8603}, // 1e154 + {0x95BA2A53F983CF38, 0xEEAABA2E5DBF6784}, // 1e155 + {0xDD945A747BF26183, 0x952AB45CFA97A0B2}, // 1e156 + {0x94F971119AEEF9E4, 0xBA756174393D88DF}, // 1e157 + {0x7A37CD5601AAB85D, 0xE912B9D1478CEB17}, // 1e158 + {0xAC62E055C10AB33A, 0x91ABB422CCB812EE}, // 1e159 + {0x577B986B314D6009, 0xB616A12B7FE617AA}, // 1e160 + {0xED5A7E85FDA0B80B, 0xE39C49765FDF9D94}, // 1e161 + {0x14588F13BE847307, 0x8E41ADE9FBEBC27D}, // 1e162 + {0x596EB2D8AE258FC8, 0xB1D219647AE6B31C}, // 1e163 + {0x6FCA5F8ED9AEF3BB, 0xDE469FBD99A05FE3}, // 1e164 + {0x25DE7BB9480D5854, 0x8AEC23D680043BEE}, // 1e165 + {0xAF561AA79A10AE6A, 0xADA72CCC20054AE9}, // 1e166 + {0x1B2BA1518094DA04, 0xD910F7FF28069DA4}, // 1e167 + {0x90FB44D2F05D0842, 0x87AA9AFF79042286}, // 1e168 + {0x353A1607AC744A53, 0xA99541BF57452B28}, // 1e169 + {0x42889B8997915CE8, 0xD3FA922F2D1675F2}, // 1e170 + {0x69956135FEBADA11, 0x847C9B5D7C2E09B7}, // 1e171 + {0x43FAB9837E699095, 0xA59BC234DB398C25}, // 1e172 + {0x94F967E45E03F4BB, 0xCF02B2C21207EF2E}, // 1e173 + {0x1D1BE0EEBAC278F5, 0x8161AFB94B44F57D}, // 1e174 + {0x6462D92A69731732, 0xA1BA1BA79E1632DC}, // 1e175 + {0x7D7B8F7503CFDCFE, 0xCA28A291859BBF93}, // 1e176 + {0x5CDA735244C3D43E, 0xFCB2CB35E702AF78}, // 1e177 + {0x3A0888136AFA64A7, 0x9DEFBF01B061ADAB}, // 1e178 + {0x088AAA1845B8FDD0, 0xC56BAEC21C7A1916}, // 1e179 + {0x8AAD549E57273D45, 0xF6C69A72A3989F5B}, // 1e180 + {0x36AC54E2F678864B, 0x9A3C2087A63F6399}, // 1e181 + {0x84576A1BB416A7DD, 0xC0CB28A98FCF3C7F}, // 1e182 + {0x656D44A2A11C51D5, 0xF0FDF2D3F3C30B9F}, // 1e183 + {0x9F644AE5A4B1B325, 0x969EB7C47859E743}, // 1e184 + {0x873D5D9F0DDE1FEE, 0xBC4665B596706114}, // 1e185 + {0xA90CB506D155A7EA, 0xEB57FF22FC0C7959}, // 1e186 + {0x09A7F12442D588F2, 0x9316FF75DD87CBD8}, // 1e187 + {0x0C11ED6D538AEB2F, 0xB7DCBF5354E9BECE}, // 1e188 + {0x8F1668C8A86DA5FA, 0xE5D3EF282A242E81}, // 1e189 + {0xF96E017D694487BC, 0x8FA475791A569D10}, // 1e190 + {0x37C981DCC395A9AC, 0xB38D92D760EC4455}, // 1e191 + {0x85BBE253F47B1417, 0xE070F78D3927556A}, // 1e192 + {0x93956D7478CCEC8E, 0x8C469AB843B89562}, // 1e193 + {0x387AC8D1970027B2, 0xAF58416654A6BABB}, // 1e194 + {0x06997B05FCC0319E, 0xDB2E51BFE9D0696A}, // 1e195 + {0x441FECE3BDF81F03, 0x88FCF317F22241E2}, // 1e196 + {0xD527E81CAD7626C3, 0xAB3C2FDDEEAAD25A}, // 1e197 + {0x8A71E223D8D3B074, 0xD60B3BD56A5586F1}, // 1e198 + {0xF6872D5667844E49, 0x85C7056562757456}, // 1e199 + {0xB428F8AC016561DB, 0xA738C6BEBB12D16C}, // 1e200 + {0xE13336D701BEBA52, 0xD106F86E69D785C7}, // 1e201 + {0xECC0024661173473, 0x82A45B450226B39C}, // 1e202 + {0x27F002D7F95D0190, 0xA34D721642B06084}, // 1e203 + {0x31EC038DF7B441F4, 0xCC20CE9BD35C78A5}, // 1e204 + {0x7E67047175A15271, 0xFF290242C83396CE}, // 1e205 + {0x0F0062C6E984D386, 0x9F79A169BD203E41}, // 1e206 + {0x52C07B78A3E60868, 0xC75809C42C684DD1}, // 1e207 + {0xA7709A56CCDF8A82, 0xF92E0C3537826145}, // 1e208 + {0x88A66076400BB691, 0x9BBCC7A142B17CCB}, // 1e209 + {0x6ACFF893D00EA435, 0xC2ABF989935DDBFE}, // 1e210 + {0x0583F6B8C4124D43, 0xF356F7EBF83552FE}, // 1e211 + {0xC3727A337A8B704A, 0x98165AF37B2153DE}, // 1e212 + {0x744F18C0592E4C5C, 0xBE1BF1B059E9A8D6}, // 1e213 + {0x1162DEF06F79DF73, 0xEDA2EE1C7064130C}, // 1e214 + {0x8ADDCB5645AC2BA8, 0x9485D4D1C63E8BE7}, // 1e215 + {0x6D953E2BD7173692, 0xB9A74A0637CE2EE1}, // 1e216 + {0xC8FA8DB6CCDD0437, 0xE8111C87C5C1BA99}, // 1e217 + {0x1D9C9892400A22A2, 0x910AB1D4DB9914A0}, // 1e218 + {0x2503BEB6D00CAB4B, 0xB54D5E4A127F59C8}, // 1e219 + {0x2E44AE64840FD61D, 0xE2A0B5DC971F303A}, // 1e220 + {0x5CEAECFED289E5D2, 0x8DA471A9DE737E24}, // 1e221 + {0x7425A83E872C5F47, 0xB10D8E1456105DAD}, // 1e222 + {0xD12F124E28F77719, 0xDD50F1996B947518}, // 1e223 + {0x82BD6B70D99AAA6F, 0x8A5296FFE33CC92F}, // 1e224 + {0x636CC64D1001550B, 0xACE73CBFDC0BFB7B}, // 1e225 + {0x3C47F7E05401AA4E, 0xD8210BEFD30EFA5A}, // 1e226 + {0x65ACFAEC34810A71, 0x8714A775E3E95C78}, // 1e227 + {0x7F1839A741A14D0D, 0xA8D9D1535CE3B396}, // 1e228 + {0x1EDE48111209A050, 0xD31045A8341CA07C}, // 1e229 + {0x934AED0AAB460432, 0x83EA2B892091E44D}, // 1e230 + {0xF81DA84D5617853F, 0xA4E4B66B68B65D60}, // 1e231 + {0x36251260AB9D668E, 0xCE1DE40642E3F4B9}, // 1e232 + {0xC1D72B7C6B426019, 0x80D2AE83E9CE78F3}, // 1e233 + {0xB24CF65B8612F81F, 0xA1075A24E4421730}, // 1e234 + {0xDEE033F26797B627, 0xC94930AE1D529CFC}, // 1e235 + {0x169840EF017DA3B1, 0xFB9B7CD9A4A7443C}, // 1e236 + {0x8E1F289560EE864E, 0x9D412E0806E88AA5}, // 1e237 + {0xF1A6F2BAB92A27E2, 0xC491798A08A2AD4E}, // 1e238 + {0xAE10AF696774B1DB, 0xF5B5D7EC8ACB58A2}, // 1e239 + {0xACCA6DA1E0A8EF29, 0x9991A6F3D6BF1765}, // 1e240 + {0x17FD090A58D32AF3, 0xBFF610B0CC6EDD3F}, // 1e241 + {0xDDFC4B4CEF07F5B0, 0xEFF394DCFF8A948E}, // 1e242 + {0x4ABDAF101564F98E, 0x95F83D0A1FB69CD9}, // 1e243 + {0x9D6D1AD41ABE37F1, 0xBB764C4CA7A4440F}, // 1e244 + {0x84C86189216DC5ED, 0xEA53DF5FD18D5513}, // 1e245 + {0x32FD3CF5B4E49BB4, 0x92746B9BE2F8552C}, // 1e246 + {0x3FBC8C33221DC2A1, 0xB7118682DBB66A77}, // 1e247 + {0x0FABAF3FEAA5334A, 0xE4D5E82392A40515}, // 1e248 + {0x29CB4D87F2A7400E, 0x8F05B1163BA6832D}, // 1e249 + {0x743E20E9EF511012, 0xB2C71D5BCA9023F8}, // 1e250 + {0x914DA9246B255416, 0xDF78E4B2BD342CF6}, // 1e251 + {0x1AD089B6C2F7548E, 0x8BAB8EEFB6409C1A}, // 1e252 + {0xA184AC2473B529B1, 0xAE9672ABA3D0C320}, // 1e253 + {0xC9E5D72D90A2741E, 0xDA3C0F568CC4F3E8}, // 1e254 + {0x7E2FA67C7A658892, 0x8865899617FB1871}, // 1e255 + {0xDDBB901B98FEEAB7, 0xAA7EEBFB9DF9DE8D}, // 1e256 + {0x552A74227F3EA565, 0xD51EA6FA85785631}, // 1e257 + {0xD53A88958F87275F, 0x8533285C936B35DE}, // 1e258 + {0x8A892ABAF368F137, 0xA67FF273B8460356}, // 1e259 + {0x2D2B7569B0432D85, 0xD01FEF10A657842C}, // 1e260 + {0x9C3B29620E29FC73, 0x8213F56A67F6B29B}, // 1e261 + {0x8349F3BA91B47B8F, 0xA298F2C501F45F42}, // 1e262 + {0x241C70A936219A73, 0xCB3F2F7642717713}, // 1e263 + {0xED238CD383AA0110, 0xFE0EFB53D30DD4D7}, // 1e264 + {0xF4363804324A40AA, 0x9EC95D1463E8A506}, // 1e265 + {0xB143C6053EDCD0D5, 0xC67BB4597CE2CE48}, // 1e266 + {0xDD94B7868E94050A, 0xF81AA16FDC1B81DA}, // 1e267 + {0xCA7CF2B4191C8326, 0x9B10A4E5E9913128}, // 1e268 + {0xFD1C2F611F63A3F0, 0xC1D4CE1F63F57D72}, // 1e269 + {0xBC633B39673C8CEC, 0xF24A01A73CF2DCCF}, // 1e270 + {0xD5BE0503E085D813, 0x976E41088617CA01}, // 1e271 + {0x4B2D8644D8A74E18, 0xBD49D14AA79DBC82}, // 1e272 + {0xDDF8E7D60ED1219E, 0xEC9C459D51852BA2}, // 1e273 + {0xCABB90E5C942B503, 0x93E1AB8252F33B45}, // 1e274 + {0x3D6A751F3B936243, 0xB8DA1662E7B00A17}, // 1e275 + {0x0CC512670A783AD4, 0xE7109BFBA19C0C9D}, // 1e276 + {0x27FB2B80668B24C5, 0x906A617D450187E2}, // 1e277 + {0xB1F9F660802DEDF6, 0xB484F9DC9641E9DA}, // 1e278 + {0x5E7873F8A0396973, 0xE1A63853BBD26451}, // 1e279 + {0xDB0B487B6423E1E8, 0x8D07E33455637EB2}, // 1e280 + {0x91CE1A9A3D2CDA62, 0xB049DC016ABC5E5F}, // 1e281 + {0x7641A140CC7810FB, 0xDC5C5301C56B75F7}, // 1e282 + {0xA9E904C87FCB0A9D, 0x89B9B3E11B6329BA}, // 1e283 + {0x546345FA9FBDCD44, 0xAC2820D9623BF429}, // 1e284 + {0xA97C177947AD4095, 0xD732290FBACAF133}, // 1e285 + {0x49ED8EABCCCC485D, 0x867F59A9D4BED6C0}, // 1e286 + {0x5C68F256BFFF5A74, 0xA81F301449EE8C70}, // 1e287 + {0x73832EEC6FFF3111, 0xD226FC195C6A2F8C}, // 1e288 }; -// -------- +// wuffs_private_impl__f64_powers_of_10 holds powers of 10 that can be exactly +// represented by a float64 (what C calls a double). +static const double wuffs_private_impl__f64_powers_of_10[23] = { + 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, + 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22, +}; -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_64__decode(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) - ? wuffs_base__base_64__decode_url - : wuffs_base__base_64__decode_std; - wuffs_base__transform__output o; - uint8_t* d_ptr = dst.ptr; - size_t d_len = dst.len; - const uint8_t* s_ptr = src.ptr; - size_t s_len = src.len; - bool pad = false; +// ---------------- IEEE 754 Floating Point - while (s_len >= 4) { - uint32_t s = wuffs_base__peek_u32le__no_bounds_check(s_ptr); - uint32_t s0 = alphabet[0xFF & (s >> 0)]; - uint32_t s1 = alphabet[0xFF & (s >> 8)]; - uint32_t s2 = alphabet[0xFF & (s >> 16)]; - uint32_t s3 = alphabet[0xFF & (s >> 24)]; +WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u16 // +wuffs_base__ieee_754_bit_representation__from_f64_to_u16_truncate(double f) { + uint64_t u = 0; + if (sizeof(uint64_t) == sizeof(double)) { + memcpy(&u, &f, sizeof(uint64_t)); + } + uint16_t neg = ((uint16_t)((u >> 63) << 15)); + u &= 0x7FFFFFFFFFFFFFFF; + uint64_t exp = u >> 52; + uint64_t man = u & 0x000FFFFFFFFFFFFF; - if (((s0 | s1 | s2 | s3) & 0xC0) != 0) { - if (s_len > 4) { - o.status.repr = wuffs_base__error__bad_data; - goto done; - } else if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - goto done; - } else if ((options & WUFFS_BASE__BASE_64__DECODE_ALLOW_PADDING) && - (s_ptr[3] == '=')) { - pad = true; - if (s_ptr[2] == '=') { - goto src2; - } - goto src3; - } - o.status.repr = wuffs_base__error__bad_data; - goto done; + if (exp == 0x7FF) { + if (man == 0) { // Infinity. + wuffs_base__lossy_value_u16 ret; + ret.value = neg | 0x7C00; + ret.lossy = false; + return ret; } + // NaN. Shift the 52 mantissa bits to 10 mantissa bits, keeping the most + // significant mantissa bit (quiet vs signaling NaNs). Also set the low 9 + // bits of ret.value so that the 10-bit mantissa is non-zero. + wuffs_base__lossy_value_u16 ret; + ret.value = neg | 0x7DFF | ((uint16_t)(man >> 42)); + ret.lossy = false; + return ret; - if (d_len < 3) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } + } else if (exp > 0x40E) { // Truncate to the largest finite f16. + wuffs_base__lossy_value_u16 ret; + ret.value = neg | 0x7BFF; + ret.lossy = true; + return ret; - s_ptr += 4; - s_len -= 4; - s = (s0 << 18) | (s1 << 12) | (s2 << 6) | (s3 << 0); - *d_ptr++ = (uint8_t)(s >> 16); - *d_ptr++ = (uint8_t)(s >> 8); - *d_ptr++ = (uint8_t)(s >> 0); - d_len -= 3; - } - - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - goto done; - } + } else if (exp <= 0x3E6) { // Truncate to zero. + wuffs_base__lossy_value_u16 ret; + ret.value = neg; + ret.lossy = (u != 0); + return ret; - if (s_len == 0) { - o.status.repr = NULL; - goto done; - } else if (s_len == 1) { - o.status.repr = wuffs_base__error__bad_data; - goto done; - } else if (s_len == 2) { - goto src2; + } else if (exp <= 0x3F0) { // Normal f64, subnormal f16. + // Convert from a 53-bit mantissa (after realizing the implicit bit) to a + // 10-bit mantissa and then adjust for the exponent. + man |= 0x0010000000000000; + uint32_t shift = ((uint32_t)(1051 - exp)); // 1051 = 0x3F0 + 53 - 10. + uint64_t shifted_man = man >> shift; + wuffs_base__lossy_value_u16 ret; + ret.value = neg | ((uint16_t)shifted_man); + ret.lossy = (shifted_man << shift) != man; + return ret; } -src3: - do { - uint32_t s = wuffs_base__peek_u24le__no_bounds_check(s_ptr); - uint32_t s0 = alphabet[0xFF & (s >> 0)]; - uint32_t s1 = alphabet[0xFF & (s >> 8)]; - uint32_t s2 = alphabet[0xFF & (s >> 16)]; - if ((s0 & 0xC0) || (s1 & 0xC0) || (s2 & 0xC3)) { - o.status.repr = wuffs_base__error__bad_data; - goto done; - } - if (d_len < 2) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - s_ptr += pad ? 4 : 3; - s = (s0 << 18) | (s1 << 12) | (s2 << 6); - *d_ptr++ = (uint8_t)(s >> 16); - *d_ptr++ = (uint8_t)(s >> 8); - o.status.repr = NULL; - goto done; - } while (0); + // Normal f64, normal f16. -src2: - do { - uint32_t s = wuffs_base__peek_u16le__no_bounds_check(s_ptr); - uint32_t s0 = alphabet[0xFF & (s >> 0)]; - uint32_t s1 = alphabet[0xFF & (s >> 8)]; - if ((s0 & 0xC0) || (s1 & 0xCF)) { - o.status.repr = wuffs_base__error__bad_data; - goto done; - } - if (d_len < 1) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - s_ptr += pad ? 4 : 2; - s = (s0 << 18) | (s1 << 12); - *d_ptr++ = (uint8_t)(s >> 16); - o.status.repr = NULL; - goto done; - } while (0); + // Re-bias from 1023 to 15 and shift above f16's 10 mantissa bits. + exp = (exp - 1008) << 10; // 1008 = 1023 - 15 = 0x3FF - 0xF. -done: - o.num_dst = (size_t)(d_ptr - dst.ptr); - o.num_src = (size_t)(s_ptr - src.ptr); - return o; + // Convert from a 52-bit mantissa (excluding the implicit bit) to a 10-bit + // mantissa (again excluding the implicit bit). We lose some information if + // any of the bottom 42 bits are non-zero. + wuffs_base__lossy_value_u16 ret; + ret.value = neg | ((uint16_t)exp) | ((uint16_t)(man >> 42)); + ret.lossy = (man << 22) != 0; + return ret; } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_64__encode(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) - ? wuffs_base__base_64__encode_url - : wuffs_base__base_64__encode_std; - wuffs_base__transform__output o; - uint8_t* d_ptr = dst.ptr; - size_t d_len = dst.len; - const uint8_t* s_ptr = src.ptr; - size_t s_len = src.len; +WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u32 // +wuffs_base__ieee_754_bit_representation__from_f64_to_u32_truncate(double f) { + uint64_t u = 0; + if (sizeof(uint64_t) == sizeof(double)) { + memcpy(&u, &f, sizeof(uint64_t)); + } + uint32_t neg = ((uint32_t)(u >> 63)) << 31; + u &= 0x7FFFFFFFFFFFFFFF; + uint64_t exp = u >> 52; + uint64_t man = u & 0x000FFFFFFFFFFFFF; - do { - while (s_len >= 3) { - if (d_len < 4) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - uint32_t s = wuffs_base__peek_u24be__no_bounds_check(s_ptr); - s_ptr += 3; - s_len -= 3; - *d_ptr++ = alphabet[0x3F & (s >> 18)]; - *d_ptr++ = alphabet[0x3F & (s >> 12)]; - *d_ptr++ = alphabet[0x3F & (s >> 6)]; - *d_ptr++ = alphabet[0x3F & (s >> 0)]; - d_len -= 4; + if (exp == 0x7FF) { + if (man == 0) { // Infinity. + wuffs_base__lossy_value_u32 ret; + ret.value = neg | 0x7F800000; + ret.lossy = false; + return ret; } + // NaN. Shift the 52 mantissa bits to 23 mantissa bits, keeping the most + // significant mantissa bit (quiet vs signaling NaNs). Also set the low 22 + // bits of ret.value so that the 23-bit mantissa is non-zero. + wuffs_base__lossy_value_u32 ret; + ret.value = neg | 0x7FBFFFFF | ((uint32_t)(man >> 29)); + ret.lossy = false; + return ret; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - goto done; - } + } else if (exp > 0x47E) { // Truncate to the largest finite f32. + wuffs_base__lossy_value_u32 ret; + ret.value = neg | 0x7F7FFFFF; + ret.lossy = true; + return ret; - if (s_len == 2) { - if (d_len < - ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 3)) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - uint32_t s = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(s_ptr))) - << 8; - s_ptr += 2; - *d_ptr++ = alphabet[0x3F & (s >> 18)]; - *d_ptr++ = alphabet[0x3F & (s >> 12)]; - *d_ptr++ = alphabet[0x3F & (s >> 6)]; - if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { - *d_ptr++ = '='; - } - o.status.repr = NULL; - goto done; + } else if (exp <= 0x369) { // Truncate to zero. + wuffs_base__lossy_value_u32 ret; + ret.value = neg; + ret.lossy = (u != 0); + return ret; - } else if (s_len == 1) { - if (d_len < - ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 2)) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - uint32_t s = ((uint32_t)(wuffs_base__peek_u8__no_bounds_check(s_ptr))) - << 16; - s_ptr += 1; - *d_ptr++ = alphabet[0x3F & (s >> 18)]; - *d_ptr++ = alphabet[0x3F & (s >> 12)]; - if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { - *d_ptr++ = '='; - *d_ptr++ = '='; - } - o.status.repr = NULL; - goto done; + } else if (exp <= 0x380) { // Normal f64, subnormal f32. + // Convert from a 53-bit mantissa (after realizing the implicit bit) to a + // 23-bit mantissa and then adjust for the exponent. + man |= 0x0010000000000000; + uint32_t shift = ((uint32_t)(926 - exp)); // 926 = 0x380 + 53 - 23. + uint64_t shifted_man = man >> shift; + wuffs_base__lossy_value_u32 ret; + ret.value = neg | ((uint32_t)shifted_man); + ret.lossy = (shifted_man << shift) != man; + return ret; + } - } else { - o.status.repr = NULL; - goto done; - } - } while (0); + // Normal f64, normal f32. -done: - o.num_dst = (size_t)(d_ptr - dst.ptr); - o.num_src = (size_t)(s_ptr - src.ptr); - return o; + // Re-bias from 1023 to 127 and shift above f32's 23 mantissa bits. + exp = (exp - 896) << 23; // 896 = 1023 - 127 = 0x3FF - 0x7F. + + // Convert from a 52-bit mantissa (excluding the implicit bit) to a 23-bit + // mantissa (again excluding the implicit bit). We lose some information if + // any of the bottom 29 bits are non-zero. + wuffs_base__lossy_value_u32 ret; + ret.value = neg | ((uint32_t)exp) | ((uint32_t)(man >> 29)); + ret.lossy = (man << 35) != 0; + return ret; } -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) +// -------- -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__MAGIC) +#define WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE 2047 +#define WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION 800 -// ---------------- Magic Numbers +// WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL is the largest N such that +// ((10 << N) < (1 << 64)). +#define WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL 60 -// ICO doesn't start with a magic identifier. Instead, see if the opening bytes -// are plausibly ICO. +// wuffs_private_impl__high_prec_dec (abbreviated as HPD) is a fixed precision +// floating point decimal number, augmented with ±infinity values, but it +// cannot represent NaN (Not a Number). // -// Callers should have already verified that (prefix_data.len >= 2) and the -// first two bytes are 0x00. +// "High precision" means that the mantissa holds 800 decimal digits. 800 is +// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION. // -// See: -// - https://docs.fileformat.com/image/ico/ -static int32_t // -wuffs_base__magic_number_guess_fourcc__maybe_ico( - wuffs_base__slice_u8 prefix_data, - bool prefix_closed) { - // Allow-list for the Image Type field. - if (prefix_data.len < 4) { - return prefix_closed ? 0 : -1; - } else if (prefix_data.ptr[3] != 0) { - return 0; - } - switch (prefix_data.ptr[2]) { - case 0x01: // ICO - case 0x02: // CUR - break; - default: - return 0; - } - - // The Number Of Images should be positive. - if (prefix_data.len < 6) { - return prefix_closed ? 0 : -1; - } else if ((prefix_data.ptr[4] == 0) && (prefix_data.ptr[5] == 0)) { - return 0; - } +// An HPD isn't for general purpose arithmetic, only for conversions to and +// from IEEE 754 double-precision floating point, where the largest and +// smallest positive, finite values are approximately 1.8e+308 and 4.9e-324. +// HPD exponents above +2047 mean infinity, below -2047 mean zero. The ±2047 +// bounds are further away from zero than ±(324 + 800), where 800 and 2047 is +// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION and +// WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. +// +// digits[.. num_digits] are the number's digits in big-endian order. The +// uint8_t values are in the range [0 ..= 9], not ['0' ..= '9'], where e.g. '7' +// is the ASCII value 0x37. +// +// decimal_point is the index (within digits) of the decimal point. It may be +// negative or be larger than num_digits, in which case the explicit digits are +// padded with implicit zeroes. +// +// For example, if num_digits is 3 and digits is "\x07\x08\x09": +// - A decimal_point of -2 means ".00789" +// - A decimal_point of -1 means ".0789" +// - A decimal_point of +0 means ".789" +// - A decimal_point of +1 means "7.89" +// - A decimal_point of +2 means "78.9" +// - A decimal_point of +3 means "789." +// - A decimal_point of +4 means "7890." +// - A decimal_point of +5 means "78900." +// +// As above, a decimal_point higher than +2047 means that the overall value is +// infinity, lower than -2047 means zero. +// +// negative is a sign bit. An HPD can distinguish positive and negative zero. +// +// truncated is whether there are more than +// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION digits, and at least one of those +// extra digits are non-zero. The existence of long-tail digits can affect +// rounding. +// +// The "all fields are zero" value is valid, and represents the number +0. +typedef struct wuffs_private_impl__high_prec_dec__struct { + uint32_t num_digits; + int32_t decimal_point; + bool negative; + bool truncated; + uint8_t digits[WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION]; +} wuffs_private_impl__high_prec_dec; - // The first ICONDIRENTRY's fourth byte should be zero. - if (prefix_data.len < 10) { - return prefix_closed ? 0 : -1; - } else if (prefix_data.ptr[9] != 0) { - return 0; +// wuffs_private_impl__high_prec_dec__trim trims trailing zeroes from the +// h->digits[.. h->num_digits] slice. They have no benefit, since we explicitly +// track h->decimal_point. +// +// Preconditions: +// - h is non-NULL. +static inline void // +wuffs_private_impl__high_prec_dec__trim(wuffs_private_impl__high_prec_dec* h) { + while ((h->num_digits > 0) && (h->digits[h->num_digits - 1] == 0)) { + h->num_digits--; } - - // TODO: have a separate FourCC for CUR? - return 0x49434F20; // 'ICO 'be } -// TGA doesn't start with a magic identifier. Instead, see if the opening bytes -// are plausibly TGA. +// wuffs_private_impl__high_prec_dec__assign sets h to represent the number x. // -// Callers should have already verified that (prefix_data.len >= 2) and the -// second byte (prefix_data.ptr[1], the Color Map Type byte), is either 0x00 or -// 0x01. -// -// See: -// - https://docs.fileformat.com/image/tga/ -// - https://www.dca.fee.unicamp.br/~martino/disciplinas/ea978/tgaffs.pdf -static int32_t // -wuffs_base__magic_number_guess_fourcc__maybe_tga( - wuffs_base__slice_u8 prefix_data, - bool prefix_closed) { - // Allow-list for the Image Type field. - if (prefix_data.len < 3) { - return prefix_closed ? 0 : -1; - } - switch (prefix_data.ptr[2]) { - case 0x01: - case 0x02: - case 0x03: - case 0x09: - case 0x0A: - case 0x0B: - break; - default: - // TODO: 0x20 and 0x21 are invalid, according to the spec, but are - // apparently unofficial extensions. - return 0; - } - - // Allow-list for the Color Map Entry Size field (if the Color Map Type field - // is non-zero) or else all the Color Map fields should be zero. - if (prefix_data.len < 8) { - return prefix_closed ? 0 : -1; - } else if (prefix_data.ptr[1] != 0x00) { - switch (prefix_data.ptr[7]) { - case 0x0F: - case 0x10: - case 0x18: - case 0x20: - break; - default: - return 0; - } - } else if ((prefix_data.ptr[3] | prefix_data.ptr[4] | prefix_data.ptr[5] | - prefix_data.ptr[6] | prefix_data.ptr[7]) != 0x00) { - return 0; - } +// Preconditions: +// - h is non-NULL. +static void // +wuffs_private_impl__high_prec_dec__assign(wuffs_private_impl__high_prec_dec* h, + uint64_t x, + bool negative) { + uint32_t n = 0; - // Allow-list for the Pixel Depth field. - if (prefix_data.len < 17) { - return prefix_closed ? 0 : -1; - } - switch (prefix_data.ptr[16]) { - case 0x01: - case 0x08: - case 0x0F: - case 0x10: - case 0x18: - case 0x20: - break; - default: - return 0; + // Set h->digits. + if (x > 0) { + // Calculate the digits, working right-to-left. After we determine n (how + // many digits there are), copy from buf to h->digits. + // + // UINT64_MAX, 18446744073709551615, is 20 digits long. It can be faster to + // copy a constant number of bytes than a variable number (20 instead of + // n). Make buf large enough (and start writing to it from the middle) so + // that can we always copy 20 bytes: the slice buf[(20-n) .. (40-n)]. + uint8_t buf[40] = {0}; + uint8_t* ptr = &buf[20]; + do { + uint64_t remaining = x / 10; + x -= remaining * 10; + ptr--; + *ptr = (uint8_t)x; + n++; + x = remaining; + } while (x > 0); + memcpy(h->digits, ptr, 20); } - return 0x54474120; // 'TGA 'be + // Set h's other fields. + h->num_digits = n; + h->decimal_point = (int32_t)n; + h->negative = negative; + h->truncated = false; + wuffs_private_impl__high_prec_dec__trim(h); } -WUFFS_BASE__MAYBE_STATIC int32_t // -wuffs_base__magic_number_guess_fourcc(wuffs_base__slice_u8 prefix_data, - bool prefix_closed) { - // This is similar to (but different from): - // - the magic/Magdir tables under https://github.com/file/file - // - the MIME Sniffing algorithm at https://mimesniff.spec.whatwg.org/ - - // table holds the 'magic numbers' (which are actually variable length - // strings). The strings may contain NUL bytes, so the "const char* magic" - // value starts with the length-minus-1 of the 'magic number'. - // - // Keep it sorted by magic[1], then magic[0] descending (prioritizing longer - // matches) and finally by magic[2:]. When multiple entries match, the - // longest one wins. - // - // The fourcc field might be negated, in which case there's further - // specialization (see § below). - static struct { - int32_t fourcc; - const char* magic; - } table[] = { - {-0x30302020, "\x01\x00\x00"}, // '00 'be - {+0x475A2020, "\x02\x1F\x8B\x08"}, // GZ - {+0x5A535444, "\x03\x28\xB5\x2F\xFD"}, // ZSTD - {+0x425A3220, "\x02\x42\x5A\x68"}, // BZ2 - {+0x424D5020, "\x01\x42\x4D"}, // BMP - {+0x47494620, "\x03\x47\x49\x46\x38"}, // GIF - {+0x54494646, "\x03\x49\x49\x2A\x00"}, // TIFF (little-endian) - {+0x54494646, "\x03\x4D\x4D\x00\x2A"}, // TIFF (big-endian) - {+0x4E50424D, "\x02\x50\x35\x0A"}, // NPBM (P5; *.pgm) - {+0x4E50424D, "\x02\x50\x36\x0A"}, // NPBM (P6; *.ppm) - {-0x52494646, "\x03\x52\x49\x46\x46"}, // RIFF - {+0x4C5A4D41, "\x04\x5D\x00\x10\x00\x00"}, // LZMA - {+0x4C5A4D41, "\x02\x5D\x00\x00"}, // LZMA - {+0x4E494520, "\x02\x6E\xC3\xAF"}, // NIE - {+0x514F4920, "\x03\x71\x6F\x69\x66"}, // QOI - {+0x5A4C4942, "\x01\x78\x9C"}, // ZLIB - {+0x504E4720, "\x03\x89\x50\x4E\x47"}, // PNG - {+0x585A2020, "\x04\xFD\x37\x7A\x58\x5A"}, // XZ - {+0x4A504547, "\x01\xFF\xD8"}, // JPEG - }; - static const size_t table_len = sizeof(table) / sizeof(table[0]); - - if (prefix_data.len == 0) { - return prefix_closed ? 0 : -1; +static wuffs_base__status // +wuffs_private_impl__high_prec_dec__parse(wuffs_private_impl__high_prec_dec* h, + wuffs_base__slice_u8 s, + uint32_t options) { + if (!h) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - uint8_t pre_first_byte = prefix_data.ptr[0]; + h->num_digits = 0; + h->decimal_point = 0; + h->negative = false; + h->truncated = false; - int32_t fourcc = 0; - size_t i; - for (i = 0; i < table_len; i++) { - uint8_t mag_first_byte = ((uint8_t)(table[i].magic[1])); - if (pre_first_byte < mag_first_byte) { - break; - } else if (pre_first_byte > mag_first_byte) { - continue; - } - fourcc = table[i].fourcc; + uint8_t* p = s.ptr; + uint8_t* q = s.ptr + s.len; - uint8_t mag_remaining_len = ((uint8_t)(table[i].magic[0])); - if (mag_remaining_len == 0) { - goto match; + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (;; p++) { + if (p >= q) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } else if (*p != '_') { + break; + } } + } - const char* mag_remaining_ptr = table[i].magic + 2; - uint8_t* pre_remaining_ptr = prefix_data.ptr + 1; - size_t pre_remaining_len = prefix_data.len - 1; - if (pre_remaining_len < mag_remaining_len) { - if (!memcmp(pre_remaining_ptr, mag_remaining_ptr, pre_remaining_len)) { - return prefix_closed ? 0 : -1; - } + // Parse sign. + do { + if (*p == '+') { + p++; + } else if (*p == '-') { + h->negative = true; + p++; } else { - if (!memcmp(pre_remaining_ptr, mag_remaining_ptr, mag_remaining_len)) { - goto match; + break; + } + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (;; p++) { + if (p >= q) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } else if (*p != '_') { + break; + } } } - } - - if (prefix_data.len < 2) { - return prefix_closed ? 0 : -1; - } else if ((prefix_data.ptr[1] == 0x00) || (prefix_data.ptr[1] == 0x01)) { - return wuffs_base__magic_number_guess_fourcc__maybe_tga(prefix_data, - prefix_closed); - } - - return 0; - -match: - // Negative FourCC values (see § above) are further specialized. - if (fourcc < 0) { - fourcc = -fourcc; + } while (0); - if (fourcc == 0x52494646) { // 'RIFF'be - if (prefix_data.len < 12) { - return prefix_closed ? 0 : -1; + // Parse digits, up to (and including) a '.', 'E' or 'e'. Examples for each + // limb in this if-else chain: + // - "0.789" + // - "1002.789" + // - ".789" + // - Other (invalid input). + uint32_t nd = 0; + int32_t dp = 0; + bool no_digits_before_separator = false; + if (('0' == *p) && + !(options & + WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES)) { + p++; + for (;; p++) { + if (p >= q) { + goto after_all; + } else if (*p == + ((options & + WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.')) { + p++; + goto after_sep; + } else if ((*p == 'E') || (*p == 'e')) { + p++; + goto after_exp; + } else if ((*p != '_') || + !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); } - uint32_t x = wuffs_base__peek_u32be__no_bounds_check(prefix_data.ptr + 8); - if (x == 0x57454250) { // 'WEBP'be - return 0x57454250; // 'WEBP'be + } + + } else if (('0' <= *p) && (*p <= '9')) { + if (*p == '0') { + for (; (p < q) && (*p == '0'); p++) { } + } else { + h->digits[nd++] = (uint8_t)(*p - '0'); + dp = (int32_t)nd; + p++; + } - } else if (fourcc == 0x30302020) { // '00 'be - // Binary data starting with multiple 0x00 NUL bytes is quite common. - // Unfortunately, some file formats also don't start with a magic - // identifier, so we have to use heuristics (where the order matters, the - // same as /usr/bin/file's magic/Magdir tables) as best we can. Maybe - // it's TGA, ICO/CUR, etc. Maybe it's something else. - int32_t tga = wuffs_base__magic_number_guess_fourcc__maybe_tga( - prefix_data, prefix_closed); - if (tga != 0) { - return tga; + for (;; p++) { + if (p >= q) { + goto after_all; + } else if (('0' <= *p) && (*p <= '9')) { + if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[nd++] = (uint8_t)(*p - '0'); + dp = (int32_t)nd; + } else if ('0' != *p) { + // Long-tail non-zeroes set the truncated bit. + h->truncated = true; + } + } else if (*p == + ((options & + WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.')) { + p++; + goto after_sep; + } else if ((*p == 'E') || (*p == 'e')) { + p++; + goto after_exp; + } else if ((*p != '_') || + !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); } - int32_t ico = wuffs_base__magic_number_guess_fourcc__maybe_ico( - prefix_data, prefix_closed); - if (ico != 0) { - return ico; + } + + } else if (*p == ((options & + WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.')) { + p++; + no_digits_before_separator = true; + + } else { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + +after_sep: + for (;; p++) { + if (p >= q) { + goto after_all; + } else if ('0' == *p) { + if (nd == 0) { + // Track leading zeroes implicitly. + dp--; + } else if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[nd++] = (uint8_t)(*p - '0'); } - if (prefix_data.len < 4) { - return prefix_closed ? 0 : -1; - } else if ((prefix_data.ptr[2] != 0x00) && - ((prefix_data.ptr[2] >= 0x80) || - (prefix_data.ptr[3] != 0x00))) { - // Roughly speaking, this could be a non-degenerate (non-0-width and - // non-0-height) WBMP image. - return 0x57424D50; // 'WBMP'be + } else if (('0' < *p) && (*p <= '9')) { + if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[nd++] = (uint8_t)(*p - '0'); + } else { + // Long-tail non-zeroes set the truncated bit. + h->truncated = true; } - return 0; + } else if ((*p == 'E') || (*p == 'e')) { + p++; + goto after_exp; + } else if ((*p != '_') || + !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); } } - return fourcc; -} - -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__MAGIC) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__PIXCONV) -// ---------------- Pixel Swizzler +after_exp: + do { + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (;; p++) { + if (p >= q) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } else if (*p != '_') { + break; + } + } + } -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -static uint64_t // -wuffs_base__pixel_swizzler__bgrw__rgb__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len); + int32_t exp_sign = +1; + if (*p == '+') { + p++; + } else if (*p == '-') { + exp_sign = -1; + p++; + } -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -static uint64_t // -wuffs_base__pixel_swizzler__swap_rgbx_bgrx__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len); + int32_t exp = 0; + const int32_t exp_large = WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE + + WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION; + bool saw_exp_digits = false; + for (; p < q; p++) { + if ((*p == '_') && + (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + // No-op. + } else if (('0' <= *p) && (*p <= '9')) { + saw_exp_digits = true; + if (exp < exp_large) { + exp = (10 * exp) + ((int32_t)(*p - '0')); + } + } else { + break; + } + } + if (!saw_exp_digits) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + dp += exp_sign * exp; + } while (0); -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -static uint64_t // -wuffs_base__pixel_swizzler__xxxx__y__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +after_all: + if (p != q) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + h->num_digits = nd; + if (nd == 0) { + if (no_digits_before_separator) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + h->decimal_point = 0; + } else if (dp < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + h->decimal_point = -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE - 1; + } else if (dp > +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + h->decimal_point = +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE + 1; + } else { + h->decimal_point = dp; + } + wuffs_private_impl__high_prec_dec__trim(h); + return wuffs_base__make_status(NULL); +} // -------- -static inline uint32_t // -wuffs_base__swap_u32_argb_abgr(uint32_t u) { - uint32_t o = u & 0xFF00FF00ul; - uint32_t r = u & 0x00FF0000ul; - uint32_t b = u & 0x000000FFul; - return o | (r >> 16) | (b << 16); -} +// wuffs_private_impl__high_prec_dec__lshift_num_new_digits returns the number +// of additional decimal digits when left-shifting by shift. +// +// See below for preconditions. +static uint32_t // +wuffs_private_impl__high_prec_dec__lshift_num_new_digits( + wuffs_private_impl__high_prec_dec* h, + uint32_t shift) { + // Masking with 0x3F should be unnecessary (assuming the preconditions) but + // it's cheap and ensures that we don't overflow the + // wuffs_private_impl__hpd_left_shift array. + shift &= 63; -static inline uint64_t // -wuffs_base__swap_u64_argb_abgr(uint64_t u) { - uint64_t o = u & 0xFFFF0000FFFF0000ull; - uint64_t r = u & 0x0000FFFF00000000ull; - uint64_t b = u & 0x000000000000FFFFull; - return o | (r >> 32) | (b << 32); -} + uint32_t x_a = wuffs_private_impl__hpd_left_shift[shift]; + uint32_t x_b = wuffs_private_impl__hpd_left_shift[shift + 1]; + uint32_t num_new_digits = x_a >> 11; + uint32_t pow5_a = 0x7FF & x_a; + uint32_t pow5_b = 0x7FF & x_b; -static inline uint32_t // -wuffs_base__color_u64__as__color_u32__swap_u32_argb_abgr(uint64_t c) { - uint32_t a = ((uint32_t)(0xFF & (c >> 56))); - uint32_t r = ((uint32_t)(0xFF & (c >> 40))); - uint32_t g = ((uint32_t)(0xFF & (c >> 24))); - uint32_t b = ((uint32_t)(0xFF & (c >> 8))); - return (a << 24) | (b << 16) | (g << 8) | (r << 0); + const uint8_t* pow5 = &wuffs_private_impl__powers_of_5[pow5_a]; + uint32_t i = 0; + uint32_t n = pow5_b - pow5_a; + for (; i < n; i++) { + if (i >= h->num_digits) { + return num_new_digits - 1; + } else if (h->digits[i] == pow5[i]) { + continue; + } else if (h->digits[i] < pow5[i]) { + return num_new_digits - 1; + } else { + return num_new_digits; + } + } + return num_new_digits; } // -------- -WUFFS_BASE__MAYBE_STATIC wuffs_base__color_u32_argb_premul // -wuffs_base__pixel_buffer__color_u32_at(const wuffs_base__pixel_buffer* pb, - uint32_t x, - uint32_t y) { - if (!pb || (x >= pb->pixcfg.private_impl.width) || - (y >= pb->pixcfg.private_impl.height)) { +// wuffs_private_impl__high_prec_dec__rounded_integer returns the integral +// (non-fractional) part of h, provided that it is 18 or fewer decimal digits. +// For 19 or more digits, it returns UINT64_MAX. Note that: +// - (1 << 53) is 9007199254740992, which has 16 decimal digits. +// - (1 << 56) is 72057594037927936, which has 17 decimal digits. +// - (1 << 59) is 576460752303423488, which has 18 decimal digits. +// - (1 << 63) is 9223372036854775808, which has 19 decimal digits. +// and that IEEE 754 double precision has 52 mantissa bits. +// +// That integral part is rounded-to-even: rounding 7.5 or 8.5 both give 8. +// +// h's negative bit is ignored: rounding -8.6 returns 9. +// +// See below for preconditions. +static uint64_t // +wuffs_private_impl__high_prec_dec__rounded_integer( + wuffs_private_impl__high_prec_dec* h) { + if ((h->num_digits == 0) || (h->decimal_point < 0)) { return 0; + } else if (h->decimal_point > 18) { + return UINT64_MAX; } - if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { - // TODO: support planar formats. - return 0; + uint32_t dp = (uint32_t)(h->decimal_point); + uint64_t n = 0; + uint32_t i = 0; + for (; i < dp; i++) { + n = (10 * n) + ((i < h->num_digits) ? h->digits[i] : 0); } - size_t stride = pb->private_impl.planes[0].stride; - const uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); + bool round_up = false; + if (dp < h->num_digits) { + round_up = h->digits[dp] >= 5; + if ((h->digits[dp] == 5) && (dp + 1 == h->num_digits)) { + // We are exactly halfway. If we're truncated, round up, otherwise round + // to even. + round_up = h->truncated || // + ((dp > 0) && (1 & h->digits[dp - 1])); + } + } + if (round_up) { + n++; + } - switch (pb->pixcfg.private_impl.pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - return wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x))); + return n; +} - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { - uint8_t* palette = pb->private_impl.planes[3].ptr; - return wuffs_base__peek_u32le__no_bounds_check(palette + - (4 * ((size_t)row[x]))); - } +// wuffs_private_impl__high_prec_dec__small_xshift shifts h's number (where 'x' +// is 'l' or 'r' for left or right) by a small shift value. +// +// Preconditions: +// - h is non-NULL. +// - h->decimal_point is "not extreme". +// - shift is non-zero. +// - shift is "a small shift". +// +// "Not extreme" means within ±WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. +// +// "A small shift" means not more than +// WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. +// +// wuffs_private_impl__high_prec_dec__rounded_integer and +// wuffs_private_impl__high_prec_dec__lshift_num_new_digits have the same +// preconditions. +// +// wuffs_private_impl__high_prec_dec__lshift keeps the first two preconditions +// but not the last two. Its shift argument is signed and does not need to be +// "small": zero is a no-op, positive means left shift and negative means right +// shift. - // Common formats above. Rarer formats below. +static void // +wuffs_private_impl__high_prec_dec__small_lshift( + wuffs_private_impl__high_prec_dec* h, + uint32_t shift) { + if (h->num_digits == 0) { + return; + } + uint32_t num_new_digits = + wuffs_private_impl__high_prec_dec__lshift_num_new_digits(h, shift); + uint32_t rx = h->num_digits - 1; // Read index. + uint32_t wx = h->num_digits - 1 + num_new_digits; // Write index. + uint64_t n = 0; - case WUFFS_BASE__PIXEL_FORMAT__Y: - return 0xFF000000 | (0x00010101 * ((uint32_t)(row[x]))); - case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: - return 0xFF000000 | (0x00010101 * ((uint32_t)(row[(2 * x) + 1]))); - case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: - return 0xFF000000 | (0x00010101 * ((uint32_t)(row[(2 * x) + 0]))); + // Repeat: pick up a digit, put down a digit, right to left. + while (((int32_t)rx) >= 0) { + n += ((uint64_t)(h->digits[rx])) << shift; + uint64_t quo = n / 10; + uint64_t rem = n - (10 * quo); + if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[wx] = (uint8_t)rem; + } else if (rem > 0) { + h->truncated = true; + } + n = quo; + wx--; + rx--; + } - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: { - uint8_t* palette = pb->private_impl.planes[3].ptr; - return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(palette + - (4 * ((size_t)row[x])))); + // Put down leading digits, right to left. + while (n > 0) { + uint64_t quo = n / 10; + uint64_t rem = n - (10 * quo); + if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[wx] = (uint8_t)rem; + } else if (rem > 0) { + h->truncated = true; } + n = quo; + wx--; + } - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - return wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(row + (2 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__BGR: - return 0xFF000000 | - wuffs_base__peek_u24le__no_bounds_check(row + (3 * ((size_t)x))); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - return wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u64le__no_bounds_check(row + (8 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - return 0xFF000000 | - wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x))); + // Finish. + h->num_digits += num_new_digits; + if (h->num_digits > WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->num_digits = WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION; + } + h->decimal_point += (int32_t)num_new_digits; + wuffs_private_impl__high_prec_dec__trim(h); +} - case WUFFS_BASE__PIXEL_FORMAT__RGB: - return wuffs_base__swap_u32_argb_abgr( - 0xFF000000 | - wuffs_base__peek_u24le__no_bounds_check(row + (3 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - return wuffs_base__swap_u32_argb_abgr( - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(row + - (4 * ((size_t)x))))); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - return wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - return wuffs_base__swap_u32_argb_abgr( - 0xFF000000 | - wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); +static void // +wuffs_private_impl__high_prec_dec__small_rshift( + wuffs_private_impl__high_prec_dec* h, + uint32_t shift) { + uint32_t rx = 0; // Read index. + uint32_t wx = 0; // Write index. + uint64_t n = 0; - default: - // TODO: support more formats. + // Pick up enough leading digits to cover the first shift. + while ((n >> shift) == 0) { + if (rx < h->num_digits) { + // Read a digit. + n = (10 * n) + h->digits[rx++]; + } else if (n == 0) { + // h's number used to be zero and remains zero. + return; + } else { + // Read sufficient implicit trailing zeroes. + while ((n >> shift) == 0) { + n = 10 * n; + rx++; + } break; + } + } + h->decimal_point -= ((int32_t)(rx - 1)); + if (h->decimal_point < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + // After the shift, h's number is effectively zero. + h->num_digits = 0; + h->decimal_point = 0; + h->truncated = false; + return; } - return 0; + // Repeat: pick up a digit, put down a digit, left to right. + uint64_t mask = (((uint64_t)(1)) << shift) - 1; + while (rx < h->num_digits) { + uint8_t new_digit = ((uint8_t)(n >> shift)); + n = (10 * (n & mask)) + h->digits[rx++]; + h->digits[wx++] = new_digit; + } + + // Put down trailing digits, left to right. + while (n > 0) { + uint8_t new_digit = ((uint8_t)(n >> shift)); + n = 10 * (n & mask); + if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[wx++] = new_digit; + } else if (new_digit > 0) { + h->truncated = true; + } + } + + // Finish. + h->num_digits = wx; + wuffs_private_impl__high_prec_dec__trim(h); +} + +static void // +wuffs_private_impl__high_prec_dec__lshift(wuffs_private_impl__high_prec_dec* h, + int32_t shift) { + if (shift > 0) { + while (shift > +WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { + wuffs_private_impl__high_prec_dec__small_lshift( + h, WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL); + shift -= WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + } + wuffs_private_impl__high_prec_dec__small_lshift(h, ((uint32_t)(+shift))); + } else if (shift < 0) { + while (shift < -WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { + wuffs_private_impl__high_prec_dec__small_rshift( + h, WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL); + shift += WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + } + wuffs_private_impl__high_prec_dec__small_rshift(h, ((uint32_t)(-shift))); + } } // -------- -WUFFS_BASE__MAYBE_STATIC wuffs_base__status // -wuffs_base__pixel_buffer__set_color_u32_at( - wuffs_base__pixel_buffer* pb, - uint32_t x, - uint32_t y, - wuffs_base__color_u32_argb_premul color) { - if (!pb) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); +// wuffs_private_impl__high_prec_dec__round_etc rounds h's number. For those +// functions that take an n argument, rounding produces at most n digits (which +// is not necessarily at most n decimal places). Negative n values are ignored, +// as well as any n greater than or equal to h's number of digits. The +// etc__round_just_enough function implicitly chooses an n to implement +// WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION. +// +// Preconditions: +// - h is non-NULL. +// - h->decimal_point is "not extreme". +// +// "Not extreme" means within ±WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. + +static void // +wuffs_private_impl__high_prec_dec__round_down( + wuffs_private_impl__high_prec_dec* h, + int32_t n) { + if ((n < 0) || (h->num_digits <= (uint32_t)n)) { + return; } - if ((x >= pb->pixcfg.private_impl.width) || - (y >= pb->pixcfg.private_impl.height)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + h->num_digits = (uint32_t)(n); + wuffs_private_impl__high_prec_dec__trim(h); +} + +static void // +wuffs_private_impl__high_prec_dec__round_up( + wuffs_private_impl__high_prec_dec* h, + int32_t n) { + if ((n < 0) || (h->num_digits <= (uint32_t)n)) { + return; } - if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { - // TODO: support planar formats. - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + for (n--; n >= 0; n--) { + if (h->digits[n] < 9) { + h->digits[n]++; + h->num_digits = (uint32_t)(n + 1); + return; + } } - size_t stride = pb->private_impl.planes[0].stride; - uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); + // The number is all 9s. Change to a single 1 and adjust the decimal point. + h->digits[0] = 1; + h->num_digits = 1; + h->decimal_point++; +} - switch (pb->pixcfg.private_impl.pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - wuffs_base__poke_u32le__no_bounds_check(row + (4 * ((size_t)x)), color); - break; +static void // +wuffs_private_impl__high_prec_dec__round_nearest( + wuffs_private_impl__high_prec_dec* h, + int32_t n) { + if ((n < 0) || (h->num_digits <= (uint32_t)n)) { + return; + } + bool up = h->digits[n] >= 5; + if ((h->digits[n] == 5) && ((n + 1) == ((int32_t)(h->num_digits)))) { + up = h->truncated || // + ((n > 0) && ((h->digits[n - 1] & 1) != 0)); + } - // Common formats above. Rarer formats below. - - case WUFFS_BASE__PIXEL_FORMAT__Y: - wuffs_base__poke_u8__no_bounds_check( - row + ((size_t)x), - wuffs_base__color_u32_argb_premul__as__color_u8_gray(color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: - wuffs_base__poke_u16le__no_bounds_check( - row + (2 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u16_gray(color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: - wuffs_base__poke_u16be__no_bounds_check( - row + (2 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u16_gray(color)); - break; - - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: - wuffs_base__poke_u8__no_bounds_check( - row + ((size_t)x), wuffs_base__pixel_palette__closest_element( - wuffs_base__pixel_buffer__palette(pb), - pb->pixcfg.private_impl.pixfmt, color)); - break; - - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - wuffs_base__poke_u16le__no_bounds_check( - row + (2 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - wuffs_base__poke_u24le__no_bounds_check(row + (3 * ((size_t)x)), color); - break; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - wuffs_base__poke_u32le__no_bounds_check( - row + (4 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - wuffs_base__poke_u64le__no_bounds_check( - row + (8 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( - color)); - break; - - case WUFFS_BASE__PIXEL_FORMAT__RGB: - wuffs_base__poke_u24le__no_bounds_check( - row + (3 * ((size_t)x)), wuffs_base__swap_u32_argb_abgr(color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - wuffs_base__poke_u32le__no_bounds_check( - row + (4 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - wuffs_base__swap_u32_argb_abgr(color))); - break; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - wuffs_base__poke_u32le__no_bounds_check( - row + (4 * ((size_t)x)), wuffs_base__swap_u32_argb_abgr(color)); - break; - - default: - // TODO: support more formats. - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + if (up) { + wuffs_private_impl__high_prec_dec__round_up(h, n); + } else { + wuffs_private_impl__high_prec_dec__round_down(h, n); } - - return wuffs_base__make_status(NULL); } -// -------- - -static inline void // -wuffs_base__pixel_buffer__set_color_u32_fill_rect__xx( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - uint16_t color) { - size_t stride = pb->private_impl.planes[0].stride; - uint32_t width = wuffs_base__rect_ie_u32__width(&rect); - if ((stride == (2 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { - uint8_t* ptr = - pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); - uint32_t height = wuffs_base__rect_ie_u32__height(&rect); - size_t n; - for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { - wuffs_base__poke_u16le__no_bounds_check(ptr, color); - ptr += 2; - } +static void // +wuffs_private_impl__high_prec_dec__round_just_enough( + wuffs_private_impl__high_prec_dec* h, + int32_t exp2, + uint64_t mantissa) { + // The magic numbers 52 and 53 in this function are because IEEE 754 double + // precision has 52 mantissa bits. + // + // Let f be the floating point number represented by exp2 and mantissa (and + // also the number in h): the number (mantissa * (2 ** (exp2 - 52))). + // + // If f is zero or a small integer, we can return early. + if ((mantissa == 0) || + ((exp2 < 53) && (h->decimal_point >= ((int32_t)(h->num_digits))))) { return; } - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + - (2 * ((size_t)rect.min_incl_x)); - uint32_t n; - for (n = width; n > 0; n--) { - wuffs_base__poke_u16le__no_bounds_check(ptr, color); - ptr += 2; - } - } -} + // The smallest normal f has an exp2 of -1022 and a mantissa of (1 << 52). + // Subnormal numbers have the same exp2 but a smaller mantissa. + static const int32_t min_incl_normal_exp2 = -1022; + static const uint64_t min_incl_normal_mantissa = 0x0010000000000000ul; -static inline void // -wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxx( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - uint32_t color) { - size_t stride = pb->private_impl.planes[0].stride; - uint32_t width = wuffs_base__rect_ie_u32__width(&rect); - if ((stride == (3 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { - uint8_t* ptr = - pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); - uint32_t height = wuffs_base__rect_ie_u32__height(&rect); - size_t n; - for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { - wuffs_base__poke_u24le__no_bounds_check(ptr, color); - ptr += 3; - } - return; + // Compute lower and upper bounds such that any number between them (possibly + // inclusive) will round to f. First, the lower bound. Our number f is: + // ((mantissa + 0) * (2 ** ( exp2 - 52))) + // + // The next lowest floating point number is: + // ((mantissa - 1) * (2 ** ( exp2 - 52))) + // unless (mantissa - 1) drops the (1 << 52) bit and exp2 is not the + // min_incl_normal_exp2. Either way, call it: + // ((l_mantissa) * (2 ** (l_exp2 - 52))) + // + // The lower bound is halfway between them (noting that 52 became 53): + // (((2 * l_mantissa) + 1) * (2 ** (l_exp2 - 53))) + int32_t l_exp2 = exp2; + uint64_t l_mantissa = mantissa - 1; + if ((exp2 > min_incl_normal_exp2) && (mantissa <= min_incl_normal_mantissa)) { + l_exp2 = exp2 - 1; + l_mantissa = (2 * mantissa) - 1; } + wuffs_private_impl__high_prec_dec lower; + wuffs_private_impl__high_prec_dec__assign(&lower, (2 * l_mantissa) + 1, + false); + wuffs_private_impl__high_prec_dec__lshift(&lower, l_exp2 - 53); - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + - (3 * ((size_t)rect.min_incl_x)); - uint32_t n; - for (n = width; n > 0; n--) { - wuffs_base__poke_u24le__no_bounds_check(ptr, color); - ptr += 3; - } - } -} + // Next, the upper bound. Our number f is: + // ((mantissa + 0) * (2 ** (exp2 - 52))) + // + // The next highest floating point number is: + // ((mantissa + 1) * (2 ** (exp2 - 52))) + // + // The upper bound is halfway between them (noting that 52 became 53): + // (((2 * mantissa) + 1) * (2 ** (exp2 - 53))) + wuffs_private_impl__high_prec_dec upper; + wuffs_private_impl__high_prec_dec__assign(&upper, (2 * mantissa) + 1, false); + wuffs_private_impl__high_prec_dec__lshift(&upper, exp2 - 53); -static inline void // -wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxxx( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - uint32_t color) { - size_t stride = pb->private_impl.planes[0].stride; - uint32_t width = wuffs_base__rect_ie_u32__width(&rect); - if ((stride == (4 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { - uint8_t* ptr = - pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); - uint32_t height = wuffs_base__rect_ie_u32__height(&rect); - size_t n; - for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { - wuffs_base__poke_u32le__no_bounds_check(ptr, color); - ptr += 4; - } - return; - } + // The lower and upper bounds are possible outputs only if the original + // mantissa is even, so that IEEE round-to-even would round to the original + // mantissa and not its neighbors. + bool inclusive = (mantissa & 1) == 0; - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + - (4 * ((size_t)rect.min_incl_x)); - uint32_t n; - for (n = width; n > 0; n--) { - wuffs_base__poke_u32le__no_bounds_check(ptr, color); - ptr += 4; - } - } -} + // As we walk the digits, we want to know whether rounding up would fall + // within the upper bound. This is tracked by upper_delta: + // - When -1, the digits of h and upper are the same so far. + // - When +0, we saw a difference of 1 between h and upper on a previous + // digit and subsequently only 9s for h and 0s for upper. Thus, rounding + // up may fall outside of the bound if !inclusive. + // - When +1, the difference is greater than 1 and we know that rounding up + // falls within the bound. + // + // This is a state machine with three states. The numerical value for each + // state (-1, +0 or +1) isn't important, other than their order. + int upper_delta = -1; -static inline void // -wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxxxxxxx( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - uint64_t color) { - size_t stride = pb->private_impl.planes[0].stride; - uint32_t width = wuffs_base__rect_ie_u32__width(&rect); - if ((stride == (8 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { - uint8_t* ptr = - pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); - uint32_t height = wuffs_base__rect_ie_u32__height(&rect); - size_t n; - for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { - wuffs_base__poke_u64le__no_bounds_check(ptr, color); - ptr += 8; + // We can now figure out the shortest number of digits required. Walk the + // digits until h has distinguished itself from lower or upper. + // + // The zi and zd variables are indexes and digits, for z in l (lower), h (the + // number) and u (upper). + // + // The lower, h and upper numbers may have their decimal points at different + // places. In this case, upper is the longest, so we iterate ui starting from + // 0 and iterate li and hi starting from either 0 or -1. + int32_t ui = 0; + for (;; ui++) { + // Calculate hd, the middle number's digit. + int32_t hi = ui - upper.decimal_point + h->decimal_point; + if (hi >= ((int32_t)(h->num_digits))) { + break; } - return; - } + uint8_t hd = (((uint32_t)hi) < h->num_digits) ? h->digits[hi] : 0; - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + - (8 * ((size_t)rect.min_incl_x)); - uint32_t n; - for (n = width; n > 0; n--) { - wuffs_base__poke_u64le__no_bounds_check(ptr, color); - ptr += 8; + // Calculate ld, the lower bound's digit. + int32_t li = ui - upper.decimal_point + lower.decimal_point; + uint8_t ld = (((uint32_t)li) < lower.num_digits) ? lower.digits[li] : 0; + + // We can round down (truncate) if lower has a different digit than h or if + // lower is inclusive and is exactly the result of rounding down (i.e. we + // have reached the final digit of lower). + bool can_round_down = + (ld != hd) || // + (inclusive && ((li + 1) == ((int32_t)(lower.num_digits)))); + + // Calculate ud, the upper bound's digit, and update upper_delta. + uint8_t ud = (((uint32_t)ui) < upper.num_digits) ? upper.digits[ui] : 0; + if (upper_delta < 0) { + if ((hd + 1) < ud) { + // For example: + // h = 12345??? + // upper = 12347??? + upper_delta = +1; + } else if (hd != ud) { + // For example: + // h = 12345??? + // upper = 12346??? + upper_delta = +0; + } + } else if (upper_delta == 0) { + if ((hd != 9) || (ud != 0)) { + // For example: + // h = 1234598? + // upper = 1234600? + upper_delta = +1; + } } - } -} -WUFFS_BASE__MAYBE_STATIC wuffs_base__status // -wuffs_base__pixel_buffer__set_color_u32_fill_rect( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - wuffs_base__color_u32_argb_premul color) { - if (!pb) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } else if (wuffs_base__rect_ie_u32__is_empty(&rect)) { - return wuffs_base__make_status(NULL); - } - wuffs_base__rect_ie_u32 bounds = - wuffs_base__pixel_config__bounds(&pb->pixcfg); - if (!wuffs_base__rect_ie_u32__contains_rect(&bounds, rect)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } + // We can round up if upper has a different digit than h and either upper + // is inclusive or upper is bigger than the result of rounding up. + bool can_round_up = + (upper_delta > 0) || // + ((upper_delta == 0) && // + (inclusive || ((ui + 1) < ((int32_t)(upper.num_digits))))); - if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { - // TODO: support planar formats. - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + // If we can round either way, round to nearest. If we can round only one + // way, do it. If we can't round, continue the loop. + if (can_round_down) { + if (can_round_up) { + wuffs_private_impl__high_prec_dec__round_nearest(h, hi + 1); + return; + } else { + wuffs_private_impl__high_prec_dec__round_down(h, hi + 1); + return; + } + } else { + if (can_round_up) { + wuffs_private_impl__high_prec_dec__round_up(h, hi + 1); + return; + } + } } +} - switch (pb->pixcfg.private_impl.pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxxx(pb, rect, color); - return wuffs_base__make_status(NULL); - - // Common formats above. Rarer formats below. +// -------- - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - wuffs_base__pixel_buffer__set_color_u32_fill_rect__xx( - pb, rect, - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); - return wuffs_base__make_status(NULL); +// wuffs_private_impl__parse_number_f64_eisel_lemire produces the IEEE 754 +// double-precision value for an exact mantissa and base-10 exponent. For +// example: +// - when parsing "12345.678e+02", man is 12345678 and exp10 is -1. +// - when parsing "-12", man is 12 and exp10 is 0. Processing the leading +// minus sign is the responsibility of the caller, not this function. +// +// On success, it returns a non-negative int64_t such that the low 63 bits hold +// the 11-bit exponent and 52-bit mantissa. +// +// On failure, it returns a negative value. +// +// The algorithm is based on an original idea by Michael Eisel that was refined +// by Daniel Lemire. See +// https://lemire.me/blog/2020/03/10/fast-float-parsing-in-practice/ +// and +// https://nigeltao.github.io/blog/2020/eisel-lemire.html +// +// Preconditions: +// - man is non-zero. +// - exp10 is in the range [-307 ..= 288], the same range of the +// wuffs_private_impl__powers_of_10 array. +// +// The exp10 range (and the fact that man is in the range [1 ..= UINT64_MAX], +// approximately [1 ..= 1.85e+19]) means that (man * (10 ** exp10)) is in the +// range [1e-307 ..= 1.85e+307]. This is entirely within the range of normal +// (neither subnormal nor non-finite) f64 values: DBL_MIN and DBL_MAX are +// approximately 2.23e–308 and 1.80e+308. +static int64_t // +wuffs_private_impl__parse_number_f64_eisel_lemire(uint64_t man, int32_t exp10) { + // Look up the (possibly truncated) base-2 representation of (10 ** exp10). + // The look-up table was constructed so that it is already normalized: the + // table entry's mantissa's MSB (most significant bit) is on. + const uint64_t* po10 = &wuffs_private_impl__powers_of_10[exp10 + 307][0]; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxx(pb, rect, color); - return wuffs_base__make_status(NULL); + // Normalize the man argument. The (man != 0) precondition means that a + // non-zero bit exists. + uint32_t clz = wuffs_base__count_leading_zeroes_u64(man); + man <<= clz; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxxx( - pb, rect, - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - color)); - return wuffs_base__make_status(NULL); + // Calculate the return value's base-2 exponent. We might tweak it by ±1 + // later, but its initial value comes from a linear scaling of exp10, + // converting from power-of-10 to power-of-2, and adjusting by clz. + // + // The magic constants are: + // - 1087 = 1023 + 64. The 1023 is the f64 exponent bias. The 64 is because + // the look-up table uses 64-bit mantissas. + // - 217706 is such that the ratio 217706 / 65536 ≈ 3.321930 is close enough + // (over the practical range of exp10) to log(10) / log(2) ≈ 3.321928. + // - 65536 = 1<<16 is arbitrary but a power of 2, so division is a shift. + // + // Equality of the linearly-scaled value and the actual power-of-2, over the + // range of exp10 arguments that this function accepts, is confirmed by + // script/print-mpb-powers-of-10.go + uint64_t ret_exp2 = + ((uint64_t)(((217706 * exp10) >> 16) + 1087)) - ((uint64_t)clz); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxxxxxxx( - pb, rect, - wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( - color)); - return wuffs_base__make_status(NULL); + // Multiply the two mantissas. Normalization means that both mantissas are at + // least (1<<63), so the 128-bit product must be at least (1<<126). The high + // 64 bits of the product, x_hi, must therefore be at least (1<<62). + // + // As a consequence, x_hi has either 0 or 1 leading zeroes. Shifting x_hi + // right by either 9 or 10 bits (depending on x_hi's MSB) will therefore + // leave the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. + wuffs_base__multiply_u64__output x = wuffs_base__multiply_u64(man, po10[1]); + uint64_t x_hi = x.hi; + uint64_t x_lo = x.lo; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxxx( - pb, rect, - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - wuffs_base__swap_u32_argb_abgr(color))); - return wuffs_base__make_status(NULL); + // Before we shift right by at least 9 bits, recall that the look-up table + // entry was possibly truncated. We have so far only calculated a lower bound + // for the product (man * e), where e is (10 ** exp10). The upper bound would + // add a further (man * 1) to the 128-bit product, which overflows the lower + // 64-bit limb if ((x_lo + man) < man). + // + // If overflow occurs, that adds 1 to x_hi. Since we're about to shift right + // by at least 9 bits, that carried 1 can be ignored unless the higher 64-bit + // limb's low 9 bits are all on. + // + // For example, parsing "9999999999999999999" will take the if-true branch + // here, since: + // - x_hi = 0x4563918244F3FFFF + // - x_lo = 0x8000000000000000 + // - man = 0x8AC7230489E7FFFF + if (((x_hi & 0x1FF) == 0x1FF) && ((x_lo + man) < man)) { + // Refine our calculation of (man * e). Before, our approximation of e used + // a "low resolution" 64-bit mantissa. Now use a "high resolution" 128-bit + // mantissa. We've already calculated x = (man * bits_0_to_63_incl_of_e). + // Now calculate y = (man * bits_64_to_127_incl_of_e). + wuffs_base__multiply_u64__output y = wuffs_base__multiply_u64(man, po10[0]); + uint64_t y_hi = y.hi; + uint64_t y_lo = y.lo; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - wuffs_base__pixel_buffer__set_color_u32_fill_rect__xxxx( - pb, rect, wuffs_base__swap_u32_argb_abgr(color)); - return wuffs_base__make_status(NULL); - } + // Merge the 128-bit x and 128-bit y, which overlap by 64 bits, to + // calculate the 192-bit product of the 64-bit man by the 128-bit e. + // As we exit this if-block, we only care about the high 128 bits + // (merged_hi and merged_lo) of that 192-bit product. + // + // For example, parsing "1.234e-45" will take the if-true branch here, + // since: + // - x_hi = 0x70B7E3696DB29FFF + // - x_lo = 0xE040000000000000 + // - y_hi = 0x33718BBEAB0E0D7A + // - y_lo = 0xA880000000000000 + uint64_t merged_hi = x_hi; + uint64_t merged_lo = x_lo + y_hi; + if (merged_lo < x_lo) { + merged_hi++; // Carry the overflow bit. + } - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint32_t x; - for (x = rect.min_incl_x; x < rect.max_excl_x; x++) { - wuffs_base__pixel_buffer__set_color_u32_at(pb, x, y, color); + // The "high resolution" approximation of e is still a lower bound. Once + // again, see if the upper bound is large enough to produce a different + // result. This time, if it does, give up instead of reaching for an even + // more precise approximation to e. + // + // This three-part check is similar to the two-part check that guarded the + // if block that we're now in, but it has an extra term for the middle 64 + // bits (checking that adding 1 to merged_lo would overflow). + // + // For example, parsing "5.9604644775390625e-8" will take the if-true + // branch here, since: + // - merged_hi = 0x7FFFFFFFFFFFFFFF + // - merged_lo = 0xFFFFFFFFFFFFFFFF + // - y_lo = 0x4DB3FFC120988200 + // - man = 0xD3C21BCECCEDA100 + if (((merged_hi & 0x1FF) == 0x1FF) && ((merged_lo + 1) == 0) && + (y_lo + man < man)) { + return -1; } + + // Replace the 128-bit x with merged. + x_hi = merged_hi; + x_lo = merged_lo; } - return wuffs_base__make_status(NULL); -} -// -------- + // As mentioned above, shifting x_hi right by either 9 or 10 bits will leave + // the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. If the + // MSB (before shifting) was on, adjust ret_exp2 for the larger shift. + // + // Having bit 53 on (and higher bits off) means that ret_mantissa is a 54-bit + // number. + uint64_t msb = x_hi >> 63; + uint64_t ret_mantissa = x_hi >> (msb + 9); + ret_exp2 -= 1 ^ msb; -WUFFS_BASE__MAYBE_STATIC uint8_t // -wuffs_base__pixel_palette__closest_element( - wuffs_base__slice_u8 palette_slice, - wuffs_base__pixel_format palette_format, - wuffs_base__color_u32_argb_premul c) { - size_t n = palette_slice.len / 4; - if (n > (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - n = (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4); + // IEEE 754 rounds to-nearest with ties rounded to-even. Rounding to-even can + // be tricky. If we're half-way between two exactly representable numbers + // (x's low 73 bits are zero and the next 2 bits that matter are "01"), give + // up instead of trying to pick the winner. + // + // Technically, we could tighten the condition by changing "73" to "73 or 74, + // depending on msb", but a flat "73" is simpler. + // + // For example, parsing "1e+23" will take the if-true branch here, since: + // - x_hi = 0x54B40B1F852BDA00 + // - ret_mantissa = 0x002A5A058FC295ED + if ((x_lo == 0) && ((x_hi & 0x1FF) == 0) && ((ret_mantissa & 3) == 1)) { + return -1; } - size_t best_index = 0; - uint64_t best_score = 0xFFFFFFFFFFFFFFFF; - // Work in 16-bit color. - uint32_t ca = 0x101 * (0xFF & (c >> 24)); - uint32_t cr = 0x101 * (0xFF & (c >> 16)); - uint32_t cg = 0x101 * (0xFF & (c >> 8)); - uint32_t cb = 0x101 * (0xFF & (c >> 0)); - - switch (palette_format.repr) { - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { - bool nonpremul = palette_format.repr == - WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL; - - size_t i; - for (i = 0; i < n; i++) { - // Work in 16-bit color. - uint32_t pb = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 0])); - uint32_t pg = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 1])); - uint32_t pr = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 2])); - uint32_t pa = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 3])); - - // Convert to premultiplied alpha. - if (nonpremul && (pa != 0xFFFF)) { - pb = (pb * pa) / 0xFFFF; - pg = (pg * pa) / 0xFFFF; - pr = (pr * pa) / 0xFFFF; - } - - // These deltas are conceptually int32_t (signed) but after squaring, - // it's equivalent to work in uint32_t (unsigned). - pb -= cb; - pg -= cg; - pr -= cr; - pa -= ca; - uint64_t score = ((uint64_t)(pb * pb)) + ((uint64_t)(pg * pg)) + - ((uint64_t)(pr * pr)) + ((uint64_t)(pa * pa)); - if (best_score > score) { - best_score = score; - best_index = i; - } - } - break; - } + // If we're not halfway then it's rounding to-nearest. Starting with a 54-bit + // number, carry the lowest bit (bit 0) up if it's on. Regardless of whether + // it was on or off, shifting right by one then produces a 53-bit number. If + // carrying up overflowed, shift again. + ret_mantissa += ret_mantissa & 1; + ret_mantissa >>= 1; + // This if block is equivalent to (but benchmarks slightly faster than) the + // following branchless form: + // uint64_t overflow_adjustment = ret_mantissa >> 53; + // ret_mantissa >>= overflow_adjustment; + // ret_exp2 += overflow_adjustment; + // + // For example, parsing "7.2057594037927933e+16" will take the if-true + // branch here, since: + // - x_hi = 0x7FFFFFFFFFFFFE80 + // - ret_mantissa = 0x0020000000000000 + if ((ret_mantissa >> 53) > 0) { + ret_mantissa >>= 1; + ret_exp2++; } - return (uint8_t)best_index; + // Starting with a 53-bit number, IEEE 754 double-precision normal numbers + // have an implicit mantissa bit. Mask that away and keep the low 52 bits. + ret_mantissa &= 0x000FFFFFFFFFFFFF; + + // Pack the bits and return. + return ((int64_t)(ret_mantissa | (ret_exp2 << 52))); } // -------- -static inline uint32_t // -wuffs_base__composite_nonpremul_nonpremul_u32_axxx(uint32_t dst_nonpremul, - uint32_t src_nonpremul) { - // Extract 16-bit color components. - // - // If the destination is transparent then SRC_OVER is equivalent to SRC: just - // return src_nonpremul. This isn't just an optimization (skipping the rest - // of the function's computation). It also preserves the nonpremul - // distinction between e.g. transparent red and transparent blue that would - // otherwise be lost by converting from nonpremul to premul and back. - uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); - if (da == 0) { - return src_nonpremul; - } - uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); - uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); - uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); - uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); - uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); - uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); - uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); - - // Convert dst from nonpremul to premul. - dr = (dr * da) / 0xFFFF; - dg = (dg * da) / 0xFFFF; - db = (db * da) / 0xFFFF; +static wuffs_base__result_f64 // +wuffs_private_impl__parse_number_f64_special(wuffs_base__slice_u8 s, + uint32_t options) { + do { + if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { + goto fail; + } - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + uint8_t* p = s.ptr; + uint8_t* q = s.ptr + s.len; - // Composite src (nonpremul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + for (; (p < q) && (*p == '_'); p++) { + } + if (p >= q) { + goto fail; + } - // Convert dst from premul to nonpremul. - if (da != 0) { - dr = (dr * 0xFFFF) / da; - dg = (dg * 0xFFFF) / da; - db = (db * 0xFFFF) / da; - } + // Parse sign. + bool negative = false; + do { + if (*p == '+') { + p++; + } else if (*p == '-') { + negative = true; + p++; + } else { + break; + } + for (; (p < q) && (*p == '_'); p++) { + } + } while (0); + if (p >= q) { + goto fail; + } - // Convert from 16-bit color to 8-bit color. - da >>= 8; - dr >>= 8; - dg >>= 8; - db >>= 8; + bool nan = false; + switch (p[0]) { + case 'I': + case 'i': + if (((q - p) < 3) || // + ((p[1] != 'N') && (p[1] != 'n')) || // + ((p[2] != 'F') && (p[2] != 'f'))) { + goto fail; + } + p += 3; - // Combine components. - return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); -} + if ((p >= q) || (*p == '_')) { + break; + } else if (((q - p) < 5) || // + ((p[0] != 'I') && (p[0] != 'i')) || // + ((p[1] != 'N') && (p[1] != 'n')) || // + ((p[2] != 'I') && (p[2] != 'i')) || // + ((p[3] != 'T') && (p[3] != 't')) || // + ((p[4] != 'Y') && (p[4] != 'y'))) { + goto fail; + } + p += 5; -static inline uint64_t // -wuffs_base__composite_nonpremul_nonpremul_u64_axxx(uint64_t dst_nonpremul, - uint64_t src_nonpremul) { - // Extract components. - // - // If the destination is transparent then SRC_OVER is equivalent to SRC: just - // return src_nonpremul. This isn't just an optimization (skipping the rest - // of the function's computation). It also preserves the nonpremul - // distinction between e.g. transparent red and transparent blue that would - // otherwise be lost by converting from nonpremul to premul and back. - uint64_t da = 0xFFFF & (dst_nonpremul >> 48); - if (da == 0) { - return src_nonpremul; - } - uint64_t dr = 0xFFFF & (dst_nonpremul >> 32); - uint64_t dg = 0xFFFF & (dst_nonpremul >> 16); - uint64_t db = 0xFFFF & (dst_nonpremul >> 0); - uint64_t sa = 0xFFFF & (src_nonpremul >> 48); - uint64_t sr = 0xFFFF & (src_nonpremul >> 32); - uint64_t sg = 0xFFFF & (src_nonpremul >> 16); - uint64_t sb = 0xFFFF & (src_nonpremul >> 0); + if ((p >= q) || (*p == '_')) { + break; + } + goto fail; - // Convert dst from nonpremul to premul. - dr = (dr * da) / 0xFFFF; - dg = (dg * da) / 0xFFFF; - db = (db * da) / 0xFFFF; + case 'N': + case 'n': + if (((q - p) < 3) || // + ((p[1] != 'A') && (p[1] != 'a')) || // + ((p[2] != 'N') && (p[2] != 'n'))) { + goto fail; + } + p += 3; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint64_t ia = 0xFFFF - sa; + if ((p >= q) || (*p == '_')) { + nan = true; + break; + } + goto fail; - // Composite src (nonpremul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + default: + goto fail; + } - // Convert dst from premul to nonpremul. - if (da != 0) { - dr = (dr * 0xFFFF) / da; - dg = (dg * 0xFFFF) / da; - db = (db * 0xFFFF) / da; - } + // Finish. + for (; (p < q) && (*p == '_'); p++) { + } + if (p != q) { + goto fail; + } + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( + (nan ? 0x7FFFFFFFFFFFFFFF : 0x7FF0000000000000) | + (negative ? 0x8000000000000000 : 0)); + return ret; + } while (0); - // Combine components. - return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); +fail: + do { + wuffs_base__result_f64 ret; + ret.status.repr = wuffs_base__error__bad_argument; + ret.value = 0; + return ret; + } while (0); } -static inline uint32_t // -wuffs_base__composite_nonpremul_premul_u32_axxx(uint32_t dst_nonpremul, - uint32_t src_premul) { - // Extract 16-bit color components. - uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); - uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); - uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); - uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); - uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); - uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); - uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); - uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); +WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // +wuffs_private_impl__high_prec_dec__to_f64(wuffs_private_impl__high_prec_dec* h, + uint32_t options) { + do { + // powers converts decimal powers of 10 to binary powers of 2. For example, + // (10000 >> 13) is 1. It stops before the elements exceed 60, also known + // as WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. + // + // This rounds down (1<<13 is a lower bound for 1e4). Adding 1 to the array + // element value rounds up (1<<14 is an upper bound for 1e4) while staying + // at or below WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. + // + // When starting in the range [1e+1 .. 1e+2] (i.e. h->decimal_point == +2), + // powers[2] == 6 and so: + // - Right shifting by 6+0 produces the range [10/64 .. 100/64] = + // [0.156250 .. 1.56250]. The resultant h->decimal_point is +0 or +1. + // - Right shifting by 6+1 produces the range [10/128 .. 100/128] = + // [0.078125 .. 0.78125]. The resultant h->decimal_point is -1 or -0. + // + // When starting in the range [1e-3 .. 1e-2] (i.e. h->decimal_point == -2), + // powers[2] == 6 and so: + // - Left shifting by 6+0 produces the range [0.001*64 .. 0.01*64] = + // [0.064 .. 0.64]. The resultant h->decimal_point is -1 or -0. + // - Left shifting by 6+1 produces the range [0.001*128 .. 0.01*128] = + // [0.128 .. 1.28]. The resultant h->decimal_point is +0 or +1. + // + // Thus, when targeting h->decimal_point being +0 or +1, use (powers[n]+0) + // when right shifting but (powers[n]+1) when left shifting. + static const uint32_t num_powers = 19; + static const uint8_t powers[19] = { + 0, 3, 6, 9, 13, 16, 19, 23, 26, 29, // + 33, 36, 39, 43, 46, 49, 53, 56, 59, // + }; - // Convert dst from nonpremul to premul. - dr = (dr * da) / 0xFFFF; - dg = (dg * da) / 0xFFFF; - db = (db * da) / 0xFFFF; + // Handle zero and obvious extremes. The largest and smallest positive + // finite f64 values are approximately 1.8e+308 and 4.9e-324. + if ((h->num_digits == 0) || (h->decimal_point < -326)) { + goto zero; + } else if (h->decimal_point > 310) { + goto infinity; + } - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + // Try the fast Eisel-Lemire algorithm again. Calculating the (man, exp10) + // pair from the high_prec_dec h is more correct but slower than the + // approach taken in wuffs_base__parse_number_f64. The latter is optimized + // for the common cases (e.g. assuming no underscores or a leading '+' + // sign) rather than the full set of cases allowed by the Wuffs API. + // + // When we have 19 or fewer mantissa digits, run Eisel-Lemire once (trying + // for an exact result). When we have more than 19 mantissa digits, run it + // twice to get a lower and upper bound. We still have an exact result + // (within f64's rounding margin) if both bounds are equal (and valid). + uint32_t i_max = h->num_digits; + if (i_max > 19) { + i_max = 19; + } + int32_t exp10 = h->decimal_point - ((int32_t)i_max); + if ((-307 <= exp10) && (exp10 <= 288)) { + uint64_t man = 0; + uint32_t i; + for (i = 0; i < i_max; i++) { + man = (10 * man) + h->digits[i]; + } + while (man != 0) { // The 'while' is just an 'if' that we can 'break'. + int64_t r0 = + wuffs_private_impl__parse_number_f64_eisel_lemire(man + 0, exp10); + if (r0 < 0) { + break; + } else if (h->num_digits > 19) { + int64_t r1 = + wuffs_private_impl__parse_number_f64_eisel_lemire(man + 1, exp10); + if (r1 != r0) { + break; + } + } + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( + ((uint64_t)r0) | (((uint64_t)(h->negative)) << 63)); + return ret; + } + } - // Composite src (premul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); + // When Eisel-Lemire fails, fall back to Simple Decimal Conversion. See + // https://nigeltao.github.io/blog/2020/parse-number-f64-simple.html + // + // Scale by powers of 2 until we're in the range [0.1 .. 10]. Equivalently, + // that h->decimal_point is +0 or +1. + // + // First we shift right while at or above 10... + const int32_t f64_bias = -1023; + int32_t exp2 = 0; + while (h->decimal_point > 1) { + uint32_t n = (uint32_t)(+h->decimal_point); + uint32_t shift = (n < num_powers) + ? powers[n] + : WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; - // Convert dst from premul to nonpremul. - if (da != 0) { - dr = (dr * 0xFFFF) / da; - dg = (dg * 0xFFFF) / da; - db = (db * 0xFFFF) / da; - } + wuffs_private_impl__high_prec_dec__small_rshift(h, shift); + if (h->decimal_point < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + goto zero; + } + exp2 += (int32_t)shift; + } + // ...then we shift left while below 0.1. + while (h->decimal_point < 0) { + uint32_t shift; + uint32_t n = (uint32_t)(-h->decimal_point); + shift = (n < num_powers) + // The +1 is per "when targeting h->decimal_point being +0 or + // +1... when left shifting" in the powers comment above. + ? (powers[n] + 1u) + : WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; - // Convert from 16-bit color to 8-bit color. - da >>= 8; - dr >>= 8; - dg >>= 8; - db >>= 8; + wuffs_private_impl__high_prec_dec__small_lshift(h, shift); + if (h->decimal_point > +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + goto infinity; + } + exp2 -= (int32_t)shift; + } - // Combine components. - return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); -} + // To get from "in the range [0.1 .. 10]" to "in the range [1 .. 2]" (which + // will give us our exponent in base-2), the mantissa's first 3 digits will + // determine the final left shift, equal to 52 (the number of explicit f64 + // bits) plus an additional adjustment. + int man3 = (100 * h->digits[0]) + + ((h->num_digits > 1) ? (10 * h->digits[1]) : 0) + + ((h->num_digits > 2) ? h->digits[2] : 0); + int32_t additional_lshift = 0; + if (h->decimal_point == 0) { // The value is in [0.1 .. 1]. + if (man3 < 125) { + additional_lshift = +4; + } else if (man3 < 250) { + additional_lshift = +3; + } else if (man3 < 500) { + additional_lshift = +2; + } else { + additional_lshift = +1; + } + } else { // The value is in [1 .. 10]. + if (man3 < 200) { + additional_lshift = -0; + } else if (man3 < 400) { + additional_lshift = -1; + } else if (man3 < 800) { + additional_lshift = -2; + } else { + additional_lshift = -3; + } + } + exp2 -= additional_lshift; + uint32_t final_lshift = (uint32_t)(52 + additional_lshift); -static inline uint64_t // -wuffs_base__composite_nonpremul_premul_u64_axxx(uint64_t dst_nonpremul, - uint64_t src_premul) { - // Extract components. - uint64_t da = 0xFFFF & (dst_nonpremul >> 48); - uint64_t dr = 0xFFFF & (dst_nonpremul >> 32); - uint64_t dg = 0xFFFF & (dst_nonpremul >> 16); - uint64_t db = 0xFFFF & (dst_nonpremul >> 0); - uint64_t sa = 0xFFFF & (src_premul >> 48); - uint64_t sr = 0xFFFF & (src_premul >> 32); - uint64_t sg = 0xFFFF & (src_premul >> 16); - uint64_t sb = 0xFFFF & (src_premul >> 0); + // The minimum normal exponent is (f64_bias + 1). + while ((f64_bias + 1) > exp2) { + uint32_t n = (uint32_t)((f64_bias + 1) - exp2); + if (n > WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { + n = WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + } + wuffs_private_impl__high_prec_dec__small_rshift(h, n); + exp2 += (int32_t)n; + } - // Convert dst from nonpremul to premul. - dr = (dr * da) / 0xFFFF; - dg = (dg * da) / 0xFFFF; - db = (db * da) / 0xFFFF; + // Check for overflow. + if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. + goto infinity; + } - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint64_t ia = 0xFFFF - sa; + // Extract 53 bits for the mantissa (in base-2). + wuffs_private_impl__high_prec_dec__small_lshift(h, final_lshift); + uint64_t man2 = wuffs_private_impl__high_prec_dec__rounded_integer(h); - // Composite src (premul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); + // Rounding might have added one bit. If so, shift and re-check overflow. + if ((man2 >> 53) != 0) { + man2 >>= 1; + exp2++; + if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. + goto infinity; + } + } - // Convert dst from premul to nonpremul. - if (da != 0) { - dr = (dr * 0xFFFF) / da; - dg = (dg * 0xFFFF) / da; - db = (db * 0xFFFF) / da; - } + // Handle subnormal numbers. + if ((man2 >> 52) == 0) { + exp2 = f64_bias; + } - // Combine components. - return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); -} + // Pack the bits and return. + uint64_t exp2_bits = + (uint64_t)((exp2 - f64_bias) & 0x07FF); // (1 << 11) - 1. + uint64_t bits = (man2 & 0x000FFFFFFFFFFFFF) | // (1 << 52) - 1. + (exp2_bits << 52) | // + (h->negative ? 0x8000000000000000 : 0); // (1 << 63). -static inline uint32_t // -wuffs_base__composite_premul_nonpremul_u32_axxx(uint32_t dst_premul, - uint32_t src_nonpremul) { - // Extract 16-bit color components. - uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); - uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); - uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); - uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); - uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); - uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); - uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); - uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); + return ret; + } while (0); - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; +zero: + do { + uint64_t bits = h->negative ? 0x8000000000000000 : 0; - // Composite src (nonpremul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); + return ret; + } while (0); - // Convert from 16-bit color to 8-bit color. - da >>= 8; - dr >>= 8; - dg >>= 8; - db >>= 8; +infinity: + do { + if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { + wuffs_base__result_f64 ret; + ret.status.repr = wuffs_base__error__bad_argument; + ret.value = 0; + return ret; + } - // Combine components. - return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); -} + uint64_t bits = h->negative ? 0xFFF0000000000000 : 0x7FF0000000000000; -static inline uint64_t // -wuffs_base__composite_premul_nonpremul_u64_axxx(uint64_t dst_premul, - uint64_t src_nonpremul) { - // Extract components. - uint64_t da = 0xFFFF & (dst_premul >> 48); - uint64_t dr = 0xFFFF & (dst_premul >> 32); - uint64_t dg = 0xFFFF & (dst_premul >> 16); - uint64_t db = 0xFFFF & (dst_premul >> 0); - uint64_t sa = 0xFFFF & (src_nonpremul >> 48); - uint64_t sr = 0xFFFF & (src_nonpremul >> 32); - uint64_t sg = 0xFFFF & (src_nonpremul >> 16); - uint64_t sb = 0xFFFF & (src_nonpremul >> 0); - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint64_t ia = 0xFFFF - sa; - - // Composite src (nonpremul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; - - // Combine components. - return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); + return ret; + } while (0); } -static inline uint32_t // -wuffs_base__composite_premul_premul_u32_axxx(uint32_t dst_premul, - uint32_t src_premul) { - // Extract 16-bit color components. - uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); - uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); - uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); - uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); - uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); - uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); - uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); - uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; - - // Composite src (premul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); - - // Convert from 16-bit color to 8-bit color. - da >>= 8; - dr >>= 8; - dg >>= 8; - db >>= 8; - - // Combine components. - return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); +static inline bool // +wuffs_private_impl__is_decimal_digit(uint8_t c) { + return ('0' <= c) && (c <= '9'); } -// -------- +WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // +wuffs_base__parse_number_f64(wuffs_base__slice_u8 s, uint32_t options) { + // In practice, almost all "dd.ddddE±xxx" numbers can be represented + // losslessly by a uint64_t mantissa "dddddd" and an int32_t base-10 + // exponent, adjusting "xxx" for the position (if present) of the decimal + // separator '.' or ','. + // + // This (u64 man, i32 exp10) data structure is superficially similar to the + // "Do It Yourself Floating Point" type from Loitsch (†), but the exponent + // here is base-10, not base-2. + // + // If s's number fits in a (man, exp10), parse that pair with the + // Eisel-Lemire algorithm. If not, or if Eisel-Lemire fails, parsing s with + // the fallback algorithm is slower but comprehensive. + // + // † "Printing Floating-Point Numbers Quickly and Accurately with Integers" + // (https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf). + // Florian Loitsch is also the primary contributor to + // https://github.com/google/double-conversion + do { + // Calculating that (man, exp10) pair needs to stay within s's bounds. + // Provided that s isn't extremely long, work on a NUL-terminated copy of + // s's contents. The NUL byte isn't a valid part of "±dd.ddddE±xxx". + // + // As the pointer p walks the contents, it's faster to repeatedly check "is + // *p a valid digit" than "is p within bounds and *p a valid digit". + if (s.len >= 256) { + goto fallback; + } + uint8_t z[256]; + memcpy(&z[0], s.ptr, s.len); + z[s.len] = 0; + const uint8_t* p = &z[0]; -static uint64_t // -wuffs_base__pixel_swizzler__squash_align4_bgr_565_8888(uint8_t* dst_ptr, - size_t dst_len, - const uint8_t* src_ptr, - size_t src_len, - bool nonpremul) { - size_t len = (dst_len < src_len ? dst_len : src_len) / 4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; + // Look for a leading minus sign. Technically, we could also look for an + // optional plus sign, but the "script/process-json-numbers.c with -p" + // benchmark is noticably slower if we do. It's optional and, in practice, + // usually absent. Let the fallback catch it. + bool negative = (*p == '-'); + if (negative) { + p++; + } - size_t n = len; - while (n--) { - uint32_t argb = wuffs_base__peek_u32le__no_bounds_check(s); - if (nonpremul) { - argb = - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(argb); + // After walking "dd.dddd", comparing p later with p now will produce the + // number of "d"s and "."s. + const uint8_t* const start_of_digits_ptr = p; + + // Walk the "d"s before a '.', 'E', NUL byte, etc. If it starts with '0', + // it must be a single '0'. If it starts with a non-zero decimal digit, it + // can be a sequence of decimal digits. + // + // Update the man variable during the walk. It's OK if man overflows now. + // We'll detect that later. + uint64_t man; + if (*p == '0') { + man = 0; + p++; + if (wuffs_private_impl__is_decimal_digit(*p)) { + goto fallback; + } + } else if (wuffs_private_impl__is_decimal_digit(*p)) { + man = ((uint8_t)(*p - '0')); + p++; + for (; wuffs_private_impl__is_decimal_digit(*p); p++) { + man = (10 * man) + ((uint8_t)(*p - '0')); + } + } else { + goto fallback; } - uint32_t b5 = 0x1F & (argb >> (8 - 5)); - uint32_t g6 = 0x3F & (argb >> (16 - 6)); - uint32_t r5 = 0x1F & (argb >> (24 - 5)); - uint32_t alpha = argb & 0xFF000000; - wuffs_base__poke_u32le__no_bounds_check( - d, alpha | (r5 << 11) | (g6 << 5) | (b5 << 0)); - s += 4; - d += 4; - } - return len; -} -// -------- + // Walk the "d"s after the optional decimal separator ('.' or ','), + // updating the man and exp10 variables. + int32_t exp10 = 0; + if (*p == + ((options & WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.')) { + p++; + const uint8_t* first_after_separator_ptr = p; + if (!wuffs_private_impl__is_decimal_digit(*p)) { + goto fallback; + } + man = (10 * man) + ((uint8_t)(*p - '0')); + p++; + for (; wuffs_private_impl__is_decimal_digit(*p); p++) { + man = (10 * man) + ((uint8_t)(*p - '0')); + } + exp10 = ((int32_t)(first_after_separator_ptr - p)); + } -static uint64_t // -wuffs_base__pixel_swizzler__swap_rgb_bgr(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t len = (dst_len < src_len ? dst_len : src_len) / 3; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; + // Count the number of digits: + // - for an input of "314159", digit_count is 6. + // - for an input of "3.14159", digit_count is 7. + // + // This is off-by-one if there is a decimal separator. That's OK for now. + // We'll correct for that later. The "script/process-json-numbers.c with + // -p" benchmark is noticably slower if we try to correct for that now. + uint32_t digit_count = (uint32_t)(p - start_of_digits_ptr); - size_t n = len; - while (n--) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s2; - d[1] = s1; - d[2] = s0; - s += 3; - d += 3; - } - return len; -} + // Update exp10 for the optional exponent, starting with 'E' or 'e'. + if ((*p | 0x20) == 'e') { + p++; + int32_t exp_sign = +1; + if (*p == '-') { + p++; + exp_sign = -1; + } else if (*p == '+') { + p++; + } + if (!wuffs_private_impl__is_decimal_digit(*p)) { + goto fallback; + } + int32_t exp_num = ((uint8_t)(*p - '0')); + p++; + // The rest of the exp_num walking has a peculiar control flow but, once + // again, the "script/process-json-numbers.c with -p" benchmark is + // sensitive to alternative formulations. + if (wuffs_private_impl__is_decimal_digit(*p)) { + exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); + p++; + } + if (wuffs_private_impl__is_decimal_digit(*p)) { + exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); + p++; + } + while (wuffs_private_impl__is_decimal_digit(*p)) { + if (exp_num > 0x1000000) { + goto fallback; + } + exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); + p++; + } + exp10 += exp_sign * exp_num; + } -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -static uint64_t // -wuffs_base__pixel_swizzler__swap_rgbx_bgrx__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t len = (dst_len < src_len ? dst_len : src_len) / 4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + // The Wuffs API is that the original slice has no trailing data. It also + // allows underscores, which we don't catch here but the fallback should. + if (p != &z[s.len]) { + goto fallback; + } - __m128i shuffle = _mm_set_epi8(+0x0F, +0x0C, +0x0D, +0x0E, // - +0x0B, +0x08, +0x09, +0x0A, // - +0x07, +0x04, +0x05, +0x06, // - +0x03, +0x00, +0x01, +0x02); + // Check that the uint64_t typed man variable has not overflowed, based on + // digit_count. + // + // For reference: + // - (1 << 63) is 9223372036854775808, which has 19 decimal digits. + // - (1 << 64) is 18446744073709551616, which has 20 decimal digits. + // - 19 nines, 9999999999999999999, is 0x8AC7230489E7FFFF, which has 64 + // bits and 16 hexadecimal digits. + // - 20 nines, 99999999999999999999, is 0x56BC75E2D630FFFFF, which has 67 + // bits and 17 hexadecimal digits. + if (digit_count > 19) { + // Even if we have more than 19 pseudo-digits, it's not yet definitely an + // overflow. Recall that digit_count might be off-by-one (too large) if + // there's a decimal separator. It will also over-report the number of + // meaningful digits if the input looks something like "0.000dddExxx". + // + // We adjust by the number of leading '0's and '.'s and re-compare to 19. + // Once again, technically, we could skip ','s too, but that perturbs the + // "script/process-json-numbers.c with -p" benchmark. + const uint8_t* q = start_of_digits_ptr; + for (; (*q == '0') || (*q == '.'); q++) { + } + digit_count -= (uint32_t)(q - start_of_digits_ptr); + if (digit_count > 19) { + goto fallback; + } + } - while (n >= 4) { - __m128i x; - x = _mm_lddqu_si128((const __m128i*)(const void*)s); - x = _mm_shuffle_epi8(x, shuffle); - _mm_storeu_si128((__m128i*)(void*)d, x); + // The wuffs_private_impl__parse_number_f64_eisel_lemire preconditions + // include that exp10 is in the range [-307 ..= 288]. + if ((exp10 < -307) || (288 < exp10)) { + goto fallback; + } - s += 4 * 4; - d += 4 * 4; - n -= 4; - } + // If both man and (10 ** exp10) are exactly representable by a double, we + // don't need to run the Eisel-Lemire algorithm. + if ((-22 <= exp10) && (exp10 <= 22) && ((man >> 53) == 0)) { + double d = (double)man; + if (exp10 >= 0) { + d *= wuffs_private_impl__f64_powers_of_10[+exp10]; + } else { + d /= wuffs_private_impl__f64_powers_of_10[-exp10]; + } + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = negative ? -d : +d; + return ret; + } - while (n--) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - uint8_t s3 = s[3]; - d[0] = s2; - d[1] = s1; - d[2] = s0; - d[3] = s3; - s += 4; - d += 4; - } - return len; -} -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 + // The wuffs_private_impl__parse_number_f64_eisel_lemire preconditions + // include that man is non-zero. Parsing "0" should be caught by the "If + // both man and (10 ** exp10)" above, but "0e99" might not. + if (man == 0) { + goto fallback; + } -static uint64_t // -wuffs_base__pixel_swizzler__swap_rgbx_bgrx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t len = (dst_len < src_len ? dst_len : src_len) / 4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; + // Our man and exp10 are in range. Run the Eisel-Lemire algorithm. + int64_t r = wuffs_private_impl__parse_number_f64_eisel_lemire(man, exp10); + if (r < 0) { + goto fallback; + } + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( + ((uint64_t)r) | (((uint64_t)negative) << 63)); + return ret; + } while (0); - size_t n = len; - while (n--) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - uint8_t s3 = s[3]; - d[0] = s2; - d[1] = s1; - d[2] = s0; - d[3] = s3; - s += 4; - d += 4; - } - return len; +fallback: + do { + wuffs_private_impl__high_prec_dec h; + wuffs_base__status status = + wuffs_private_impl__high_prec_dec__parse(&h, s, options); + if (status.repr) { + return wuffs_private_impl__parse_number_f64_special(s, options); + } + return wuffs_private_impl__high_prec_dec__to_f64(&h, options); + } while (0); } // -------- -static uint64_t // -wuffs_base__pixel_swizzler__copy_1_1(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t len = (dst_len < src_len) ? dst_len : src_len; - if (len > 0) { - memmove(dst_ptr, src_ptr, len); +static inline size_t // +wuffs_private_impl__render_inf(wuffs_base__slice_u8 dst, + bool neg, + uint32_t options) { + if (neg) { + if (dst.len < 4) { + return 0; + } + wuffs_base__poke_u32le__no_bounds_check(dst.ptr, 0x666E492D); // '-Inf'le. + return 4; } - return len; -} -static uint64_t // -wuffs_base__pixel_swizzler__copy_2_2(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len2 = src_len / 2; - size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; - if (len > 0) { - memmove(dst_ptr, src_ptr, len * 2); + if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { + if (dst.len < 4) { + return 0; + } + wuffs_base__poke_u32le__no_bounds_check(dst.ptr, 0x666E492B); // '+Inf'le. + return 4; } - return len; -} -static uint64_t // -wuffs_base__pixel_swizzler__copy_3_3(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len3 = src_len / 3; - size_t len = (dst_len3 < src_len3) ? dst_len3 : src_len3; - if (len > 0) { - memmove(dst_ptr, src_ptr, len * 3); + if (dst.len < 3) { + return 0; } - return len; + wuffs_base__poke_u24le__no_bounds_check(dst.ptr, 0x666E49); // 'Inf'le. + return 3; } -static uint64_t // -wuffs_base__pixel_swizzler__copy_4_4(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; - if (len > 0) { - memmove(dst_ptr, src_ptr, len * 4); +static inline size_t // +wuffs_private_impl__render_nan(wuffs_base__slice_u8 dst) { + if (dst.len < 3) { + return 0; } - return len; + wuffs_base__poke_u24le__no_bounds_check(dst.ptr, 0x4E614E); // 'NaN'le. + return 3; } -static uint64_t // -wuffs_base__pixel_swizzler__copy_8_8(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len8 = src_len / 8; - size_t len = (dst_len8 < src_len8) ? dst_len8 : src_len8; - if (len > 0) { - memmove(dst_ptr, src_ptr, len * 8); +static size_t // +wuffs_private_impl__high_prec_dec__render_exponent_absent( + wuffs_base__slice_u8 dst, + wuffs_private_impl__high_prec_dec* h, + uint32_t precision, + uint32_t options) { + size_t n = (h->negative || + (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) + ? 1 + : 0; + if (h->decimal_point <= 0) { + n += 1; + } else { + n += (size_t)(h->decimal_point); + } + if (precision > 0) { + n += precision + 1; // +1 for the '.'. } - return len; -} -// -------- + // Don't modify dst if the formatted number won't fit. + if (n > dst.len) { + return 0; + } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__bgr(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len3 = src_len / 3; - size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + // Align-left or align-right. + uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) + ? &dst.ptr[dst.len - n] + : &dst.ptr[0]; - // TODO: unroll. + // Leading "±". + if (h->negative) { + *ptr++ = '-'; + } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { + *ptr++ = '+'; + } - while (n >= 1) { - uint32_t b5 = s[0] >> 3; - uint32_t g6 = s[1] >> 2; - uint32_t r5 = s[2] >> 3; - uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + // Integral digits. + if (h->decimal_point <= 0) { + *ptr++ = '0'; + } else { + uint32_t m = + wuffs_base__u32__min(h->num_digits, (uint32_t)(h->decimal_point)); + uint32_t i = 0; + for (; i < m; i++) { + *ptr++ = (uint8_t)('0' | h->digits[i]); + } + for (; i < (uint32_t)(h->decimal_point); i++) { + *ptr++ = '0'; + } + } - s += 1 * 3; - d += 1 * 2; - n -= 1; + // Separator and then fractional digits. + if (precision > 0) { + *ptr++ = + (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.'; + uint32_t i = 0; + for (; i < precision; i++) { + uint32_t j = ((uint32_t)(h->decimal_point)) + i; + *ptr++ = (uint8_t)('0' | ((j < h->num_digits) ? h->digits[j] : 0)); + } } - return len; + return n; } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__bgrx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. +static size_t // +wuffs_private_impl__high_prec_dec__render_exponent_present( + wuffs_base__slice_u8 dst, + wuffs_private_impl__high_prec_dec* h, + uint32_t precision, + uint32_t options) { + int32_t exp = 0; + if (h->num_digits > 0) { + exp = h->decimal_point - 1; + } + bool negative_exp = exp < 0; + if (negative_exp) { + exp = -exp; + } - while (n >= 1) { - uint32_t b5 = s[0] >> 3; - uint32_t g6 = s[1] >> 2; - uint32_t r5 = s[2] >> 3; - uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + size_t n = (h->negative || + (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) + ? 4 + : 3; // Mininum 3 bytes: first digit and then "e±". + if (precision > 0) { + n += precision + 1; // +1 for the '.'. + } + n += (exp < 100) ? 2 : 3; - s += 1 * 4; - d += 1 * 2; - n -= 1; + // Don't modify dst if the formatted number won't fit. + if (n > dst.len) { + return 0; } - return len; -} + // Align-left or align-right. + uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) + ? &dst.ptr[dst.len - n] + : &dst.ptr[0]; -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + // Leading "±". + if (h->negative) { + *ptr++ = '-'; + } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { + *ptr++ = '+'; + } - // TODO: unroll. + // Integral digit. + if (h->num_digits > 0) { + *ptr++ = (uint8_t)('0' | h->digits[0]); + } else { + *ptr++ = '0'; + } - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); + // Separator and then fractional digits. + if (precision > 0) { + *ptr++ = + (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.'; + uint32_t i = 1; + uint32_t j = wuffs_base__u32__min(h->num_digits, precision + 1); + for (; i < j; i++) { + *ptr++ = (uint8_t)('0' | h->digits[i]); + } + for (; i <= precision; i++) { + *ptr++ = '0'; + } + } - s += 1 * 4; - d += 1 * 2; - n -= 1; + // Exponent: "e±" and then 2 or 3 digits. + *ptr++ = 'e'; + *ptr++ = negative_exp ? '-' : '+'; + if (exp < 10) { + *ptr++ = '0'; + *ptr++ = (uint8_t)('0' | exp); + } else if (exp < 100) { + *ptr++ = (uint8_t)('0' | (exp / 10)); + *ptr++ = (uint8_t)('0' | (exp % 10)); + } else { + int32_t e = exp / 100; + exp -= e * 100; + *ptr++ = (uint8_t)('0' | e); + *ptr++ = (uint8_t)('0' | (exp / 10)); + *ptr++ = (uint8_t)('0' | (exp % 10)); } - return len; + return n; } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul_4x16le__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len8 = src_len / 8; - size_t len = (dst_len2 < src_len8) ? dst_len2 : src_len8; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__render_number_f64(wuffs_base__slice_u8 dst, + double x, + uint32_t precision, + uint32_t options) { + // Decompose x (64 bits) into negativity (1 bit), base-2 exponent (11 bits + // with a -1023 bias) and mantissa (52 bits). + uint64_t bits = wuffs_base__ieee_754_bit_representation__from_f64_to_u64(x); + bool neg = (bits >> 63) != 0; + int32_t exp2 = ((int32_t)(bits >> 52)) & 0x7FF; + uint64_t man = bits & 0x000FFFFFFFFFFFFFul; - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))))); + // Apply the exponent bias and set the implicit top bit of the mantissa, + // unless x is subnormal. Also take care of Inf and NaN. + if (exp2 == 0x7FF) { + if (man != 0) { + return wuffs_private_impl__render_nan(dst); + } + return wuffs_private_impl__render_inf(dst, neg, options); + } else if (exp2 == 0) { + exp2 = -1022; + } else { + exp2 -= 1023; + man |= 0x0010000000000000ul; + } - s += 1 * 8; - d += 1 * 2; - n -= 1; + // Ensure that precision isn't too large. + if (precision > 4095) { + precision = 4095; } - return len; -} + // Convert from the (neg, exp2, man) tuple to an HPD. + wuffs_private_impl__high_prec_dec h; + wuffs_private_impl__high_prec_dec__assign(&h, man, neg); + if (h.num_digits > 0) { + wuffs_private_impl__high_prec_dec__lshift(&h, + exp2 - 52); // 52 mantissa bits. + } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + // Handle the "%e" and "%f" formats. + switch (options & (WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT | + WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT)) { + case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT: // The "%"f" format. + if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { + wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); + int32_t p = ((int32_t)(h.num_digits)) - h.decimal_point; + precision = ((uint32_t)(wuffs_base__i32__max(0, p))); + } else { + wuffs_private_impl__high_prec_dec__round_nearest( + &h, ((int32_t)precision) + h.decimal_point); + } + return wuffs_private_impl__high_prec_dec__render_exponent_absent( + dst, &h, precision, options); - // TODO: unroll. + case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT: // The "%e" format. + if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { + wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); + precision = (h.num_digits > 0) ? (h.num_digits - 1) : 0; + } else { + wuffs_private_impl__high_prec_dec__round_nearest( + &h, ((int32_t)precision) + 1); + } + return wuffs_private_impl__high_prec_dec__render_exponent_present( + dst, &h, precision, options); + } - while (n >= 1) { - // Extract 16-bit color components. - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sr = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sb = 0x101 * ((uint32_t)s[0]); + // We have the "%g" format and so precision means the number of significant + // digits, not the number of digits after the decimal separator. Perform + // rounding and determine whether to use "%e" or "%f". + int32_t e_threshold = 0; + if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { + wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); + precision = h.num_digits; + e_threshold = 6; + } else { + if (precision == 0) { + precision = 1; + } + wuffs_private_impl__high_prec_dec__round_nearest(&h, ((int32_t)precision)); + e_threshold = ((int32_t)precision); + int32_t nd = ((int32_t)(h.num_digits)); + if ((e_threshold > nd) && (nd >= h.decimal_point)) { + e_threshold = nd; + } + } - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; + // Use the "%e" format if the exponent is large. + int32_t e = h.decimal_point - 1; + if ((e < -4) || (e_threshold <= e)) { + uint32_t p = wuffs_base__u32__min(precision, h.num_digits); + return wuffs_private_impl__high_prec_dec__render_exponent_present( + dst, &h, (p > 0) ? (p - 1) : 0, options); + } - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + // Use the "%f" format otherwise. + int32_t p = ((int32_t)precision); + if (p > h.decimal_point) { + p = ((int32_t)(h.num_digits)); + } + precision = ((uint32_t)(wuffs_base__i32__max(0, p - h.decimal_point))); + return wuffs_private_impl__high_prec_dec__render_exponent_absent( + dst, &h, precision, options); +} - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) - s += 1 * 4; - d += 1 * 2; - n -= 1; - } +// ---------------- Integer - return len; -} +// wuffs_base__parse_number__foo_digits entries are 0x00 for invalid digits, +// and (0x80 | v) for valid digits, where v is the 4 bit value. -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len8 = src_len / 8; - size_t len = (dst_len2 < src_len8) ? dst_len2 : src_len8; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +static const uint8_t wuffs_base__parse_number__decimal_digits[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. + 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. + 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. - // TODO: unroll. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x40 ..= 0x47. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x60 ..= 0x67. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. - while (n >= 1) { - // Extract 16-bit color components. - uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); - uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); - uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); - uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; +static const uint8_t wuffs_base__parse_number__hexadecimal_digits[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. + 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. + 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x40 ..= 0x47. 'A'-'F'. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. + 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x60 ..= 0x67. 'a'-'f'. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. - s += 1 * 8; - d += 1 * 2; - n -= 1; - } + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; - return len; -} +static const uint8_t wuffs_private_impl__encode_base16[16] = { + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // 0x00 ..= 0x07. + 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, // 0x08 ..= 0x0F. +}; -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__bgra_premul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +// -------- - // TODO: unroll. +WUFFS_BASE__MAYBE_STATIC wuffs_base__result_i64 // +wuffs_base__parse_number_i64(wuffs_base__slice_u8 s, uint32_t options) { + uint8_t* p = s.ptr; + uint8_t* q = s.ptr + s.len; - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (; (p < q) && (*p == '_'); p++) { + } + } - s += 1 * 4; - d += 1 * 2; - n -= 1; + bool negative = false; + if (p >= q) { + goto fail_bad_argument; + } else if (*p == '-') { + p++; + negative = true; + } else if (*p == '+') { + p++; } - return len; -} + do { + wuffs_base__result_u64 r = wuffs_base__parse_number_u64( + wuffs_base__make_slice_u8(p, (size_t)(q - p)), options); + if (r.status.repr != NULL) { + wuffs_base__result_i64 ret; + ret.status.repr = r.status.repr; + ret.value = 0; + return ret; + } else if (negative) { + if (r.value < 0x8000000000000000) { + wuffs_base__result_i64 ret; + ret.status.repr = NULL; + ret.value = -(int64_t)(r.value); + return ret; + } else if (r.value == 0x8000000000000000) { + wuffs_base__result_i64 ret; + ret.status.repr = NULL; + ret.value = INT64_MIN; + return ret; + } + goto fail_out_of_bounds; + } else if (r.value > 0x7FFFFFFFFFFFFFFF) { + goto fail_out_of_bounds; + } else { + wuffs_base__result_i64 ret; + ret.status.repr = NULL; + ret.value = +(int64_t)(r.value); + return ret; + } + } while (0); -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__bgra_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +fail_bad_argument: + do { + wuffs_base__result_i64 ret; + ret.status.repr = wuffs_base__error__bad_argument; + ret.value = 0; + return ret; + } while (0); - // TODO: unroll. +fail_out_of_bounds: + do { + wuffs_base__result_i64 ret; + ret.status.repr = wuffs_base__error__out_of_bounds; + ret.value = 0; + return ret; + } while (0); +} - while (n >= 1) { - // Extract 16-bit color components. - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sr = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sb = 0x101 * ((uint32_t)s[0]); +WUFFS_BASE__MAYBE_STATIC wuffs_base__result_u64 // +wuffs_base__parse_number_u64(wuffs_base__slice_u8 s, uint32_t options) { + uint8_t* p = s.ptr; + uint8_t* q = s.ptr + s.len; - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; - - // Composite src (premul) over dst (premul). - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); - - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); - - s += 1 * 4; - d += 1 * 2; - n -= 1; + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (; (p < q) && (*p == '_'); p++) { + } } - return len; -} + if (p >= q) { + goto fail_bad_argument; -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__rgb(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len3 = src_len / 3; - size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + } else if (*p == '0') { + p++; + if (p >= q) { + goto ok_zero; + } + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + if (*p == '_') { + p++; + for (; p < q; p++) { + if (*p != '_') { + if (options & + WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { + goto decimal; + } + goto fail_bad_argument; + } + } + goto ok_zero; + } + } - // TODO: unroll. + if ((*p == 'x') || (*p == 'X')) { + p++; + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (; (p < q) && (*p == '_'); p++) { + } + } + if (p < q) { + goto hexadecimal; + } - while (n >= 1) { - uint32_t r5 = s[0] >> 3; - uint32_t g6 = s[1] >> 2; - uint32_t b5 = s[2] >> 3; - uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + } else if ((*p == 'd') || (*p == 'D')) { + p++; + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (; (p < q) && (*p == '_'); p++) { + } + } + if (p < q) { + goto decimal; + } + } - s += 1 * 3; - d += 1 * 2; - n -= 1; + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { + goto decimal; + } + goto fail_bad_argument; } - return len; -} +decimal: + do { + uint64_t v = wuffs_base__parse_number__decimal_digits[*p++]; + if (v == 0) { + goto fail_bad_argument; + } + v &= 0x0F; -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__rgba_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + // UINT64_MAX is 18446744073709551615, which is ((10 * max10) + max1). + const uint64_t max10 = 1844674407370955161u; + const uint8_t max1 = 5; - // TODO: unroll. + for (; p < q; p++) { + if ((*p == '_') && + (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + continue; + } + uint8_t digit = wuffs_base__parse_number__decimal_digits[*p]; + if (digit == 0) { + goto fail_bad_argument; + } + digit &= 0x0F; + if ((v > max10) || ((v == max10) && (digit > max1))) { + goto fail_out_of_bounds; + } + v = (10 * v) + ((uint64_t)(digit)); + } - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__swap_u32_argb_abgr( - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))))); + wuffs_base__result_u64 ret; + ret.status.repr = NULL; + ret.value = v; + return ret; + } while (0); - s += 1 * 4; - d += 1 * 2; - n -= 1; - } +hexadecimal: + do { + uint64_t v = wuffs_base__parse_number__hexadecimal_digits[*p++]; + if (v == 0) { + goto fail_bad_argument; + } + v &= 0x0F; - return len; -} + for (; p < q; p++) { + if ((*p == '_') && + (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + continue; + } + uint8_t digit = wuffs_base__parse_number__hexadecimal_digits[*p]; + if (digit == 0) { + goto fail_bad_argument; + } + digit &= 0x0F; + if ((v >> 60) != 0) { + goto fail_out_of_bounds; + } + v = (v << 4) | ((uint64_t)(digit)); + } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__rgba_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + wuffs_base__result_u64 ret; + ret.status.repr = NULL; + ret.value = v; + return ret; + } while (0); - // TODO: unroll. +ok_zero: + do { + wuffs_base__result_u64 ret; + ret.status.repr = NULL; + ret.value = 0; + return ret; + } while (0); - while (n >= 1) { - // Extract 16-bit color components. - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sb = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sr = 0x101 * ((uint32_t)s[0]); +fail_bad_argument: + do { + wuffs_base__result_u64 ret; + ret.status.repr = wuffs_base__error__bad_argument; + ret.value = 0; + return ret; + } while (0); - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; +fail_out_of_bounds: + do { + wuffs_base__result_u64 ret; + ret.status.repr = wuffs_base__error__out_of_bounds; + ret.value = 0; + return ret; + } while (0); +} - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; +// -------- - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; +// wuffs_base__render_number__first_hundred contains the decimal encodings of +// the first one hundred numbers [0 ..= 99]. +static const uint8_t wuffs_base__render_number__first_hundred[200] = { + '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', // + '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', // + '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', // + '1', '5', '1', '6', '1', '7', '1', '8', '1', '9', // + '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', // + '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', // + '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', // + '3', '5', '3', '6', '3', '7', '3', '8', '3', '9', // + '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', // + '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', // + '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', // + '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', // + '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', // + '6', '5', '6', '6', '6', '7', '6', '8', '6', '9', // + '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', // + '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', // + '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', // + '8', '5', '8', '6', '8', '7', '8', '8', '8', '9', // + '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', // + '9', '5', '9', '6', '9', '7', '9', '8', '9', '9', // +}; - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); +static size_t // +wuffs_private_impl__render_number_u64(wuffs_base__slice_u8 dst, + uint64_t x, + uint32_t options, + bool neg) { + uint8_t buf[WUFFS_BASE__U64__BYTE_LENGTH__MAX_INCL]; + uint8_t* ptr = &buf[0] + sizeof(buf); - s += 1 * 4; - d += 1 * 2; - n -= 1; + while (x >= 100) { + size_t index = ((size_t)((x % 100) * 2)); + x /= 100; + uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; + uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; + ptr -= 2; + ptr[0] = s0; + ptr[1] = s1; } - return len; -} - -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__rgba_premul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + if (x < 10) { + ptr -= 1; + ptr[0] = (uint8_t)('0' + x); + } else { + size_t index = ((size_t)(x * 2)); + uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; + uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; + ptr -= 2; + ptr[0] = s0; + ptr[1] = s1; + } - // TODO: unroll. + if (neg) { + ptr -= 1; + ptr[0] = '-'; + } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { + ptr -= 1; + ptr[0] = '+'; + } - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); + size_t n = sizeof(buf) - ((size_t)(ptr - &buf[0])); + if (n > dst.len) { + return 0; + } + memcpy(dst.ptr + ((options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) + ? (dst.len - n) + : 0), + ptr, n); + return n; +} - s += 1 * 4; - d += 1 * 2; - n -= 1; +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__render_number_i64(wuffs_base__slice_u8 dst, + int64_t x, + uint32_t options) { + uint64_t u = (uint64_t)x; + bool neg = x < 0; + if (neg) { + u = 1 + ~u; } + return wuffs_private_impl__render_number_u64(dst, u, options, neg); +} - return len; +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__render_number_u64(wuffs_base__slice_u8 dst, + uint64_t x, + uint32_t options) { + return wuffs_private_impl__render_number_u64(dst, x, options, false); } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__rgba_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +// ---------------- Base-16 - // TODO: unroll. +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_16__decode2(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + wuffs_base__transform__output o; + size_t src_len2 = src.len / 2; + size_t len; + if (dst.len < src_len2) { + len = dst.len; + o.status.repr = wuffs_base__suspension__short_write; + } else { + len = src_len2; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + } else if (src.len & 1) { + o.status.repr = wuffs_base__error__bad_data; + } else { + o.status.repr = NULL; + } + } - while (n >= 1) { - // Extract 16-bit color components. - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sb = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sr = 0x101 * ((uint32_t)s[0]); + uint8_t* d = dst.ptr; + uint8_t* s = src.ptr; + size_t n = len; - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; + while (n--) { + *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[0]] << 4) | + (wuffs_base__parse_number__hexadecimal_digits[s[1]] & 0x0F)); + d += 1; + s += 2; + } - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + o.num_dst = len; + o.num_src = len * 2; + return o; +} - // Composite src (premul) over dst (premul). - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_16__decode4(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + wuffs_base__transform__output o; + size_t src_len4 = src.len / 4; + size_t len = dst.len < src_len4 ? dst.len : src_len4; + if (dst.len < src_len4) { + len = dst.len; + o.status.repr = wuffs_base__suspension__short_write; + } else { + len = src_len4; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + } else if (src.len & 1) { + o.status.repr = wuffs_base__error__bad_data; + } else { + o.status.repr = NULL; + } + } - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + uint8_t* d = dst.ptr; + uint8_t* s = src.ptr; + size_t n = len; - s += 1 * 4; - d += 1 * 2; - n -= 1; + while (n--) { + *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[2]] << 4) | + (wuffs_base__parse_number__hexadecimal_digits[s[3]] & 0x0F)); + d += 1; + s += 4; } - return len; + o.num_dst = len; + o.num_src = len * 4; + return o; } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__y(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_16__encode2(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + wuffs_base__transform__output o; + size_t dst_len2 = dst.len / 2; + size_t len; + if (dst_len2 < src.len) { + len = dst_len2; + o.status.repr = wuffs_base__suspension__short_write; + } else { + len = src.len; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + } else { + o.status.repr = NULL; + } + } - while (n >= 1) { - uint32_t y5 = s[0] >> 3; - uint32_t y6 = s[0] >> 2; - uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + uint8_t* d = dst.ptr; + uint8_t* s = src.ptr; + size_t n = len; - s += 1 * 1; - d += 1 * 2; - n -= 1; + while (n--) { + uint8_t c = *s; + d[0] = wuffs_private_impl__encode_base16[c >> 4]; + d[1] = wuffs_private_impl__encode_base16[c & 0x0F]; + d += 2; + s += 1; } - return len; + o.num_dst = len * 2; + o.num_src = len; + return o; } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len2 = src_len / 2; - size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_16__encode4(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + wuffs_base__transform__output o; + size_t dst_len4 = dst.len / 4; + size_t len; + if (dst_len4 < src.len) { + len = dst_len4; + o.status.repr = wuffs_base__suspension__short_write; + } else { + len = src.len; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + } else { + o.status.repr = NULL; + } + } - while (n >= 1) { - uint32_t y5 = s[0] >> 3; - uint32_t y6 = s[0] >> 2; - uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + uint8_t* d = dst.ptr; + uint8_t* s = src.ptr; + size_t n = len; - s += 1 * 2; - d += 1 * 2; - n -= 1; + while (n--) { + uint8_t c = *s; + d[0] = '\\'; + d[1] = 'x'; + d[2] = wuffs_private_impl__encode_base16[c >> 4]; + d[3] = wuffs_private_impl__encode_base16[c & 0x0F]; + d += 4; + s += 1; } - return len; + o.num_dst = len * 4; + o.num_src = len; + return o; } -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__index__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len2 = dst_len / 2; - size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +// ---------------- Base-64 - const size_t loop_unroll_count = 4; +// The two base-64 alphabets, std and url, differ only in the last two codes. +// - std: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" +// - url: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_" - while (n >= loop_unroll_count) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); - wuffs_base__poke_u16le__no_bounds_check( - d + (1 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[1] * 4))); - wuffs_base__poke_u16le__no_bounds_check( - d + (2 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[2] * 4))); - wuffs_base__poke_u16le__no_bounds_check( - d + (3 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[3] * 4))); +static const uint8_t wuffs_base__base_64__decode_std[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. + 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, 0x80, 0x3F, // 0x28 ..= 0x2F. + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. + 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. - s += loop_unroll_count * 1; - d += loop_unroll_count * 2; - n -= loop_unroll_count; - } + 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. + 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. + 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. + 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x58 ..= 0x5F. + 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. + 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. + 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. + 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. - s += 1 * 1; - d += 1 * 2; - n -= 1; - } + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; - return len; -} +static const uint8_t wuffs_base__base_64__decode_url[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, // 0x28 ..= 0x2F. + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. + 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__index_bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len2 = dst_len / 2; - size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. + 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. + 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. + 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x3F, // 0x58 ..= 0x5F. + 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. + 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. + 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. + 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. - // TODO: unroll. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. - while (n >= 1) { - uint32_t d0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2))); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__composite_premul_nonpremul_u32_axxx(d0, s0))); + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; - s += 1 * 1; - d += 1 * 2; - n -= 1; - } +static const uint8_t wuffs_base__base_64__encode_std[64] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. + 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. + 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. + 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. + 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. + 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. + 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F, // 0x38 ..= 0x3F. +}; - return len; -} +static const uint8_t wuffs_base__base_64__encode_url[64] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. + 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. + 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. + 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. + 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. + 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. + 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2D, 0x5F, // 0x38 ..= 0x3F. +}; -static uint64_t // -wuffs_base__pixel_swizzler__bgr_565__index_binary_alpha__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len2 = dst_len / 2; - size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +// -------- - // TODO: unroll. +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_64__decode(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) + ? wuffs_base__base_64__decode_url + : wuffs_base__base_64__decode_std; + wuffs_base__transform__output o; + uint8_t* d_ptr = dst.ptr; + size_t d_len = dst.len; + const uint8_t* s_ptr = src.ptr; + size_t s_len = src.len; + bool pad = false; - while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)s0); - } + while (s_len >= 4) { + uint32_t s = wuffs_base__peek_u32le__no_bounds_check(s_ptr); + uint32_t s0 = alphabet[0xFF & (s >> 0)]; + uint32_t s1 = alphabet[0xFF & (s >> 8)]; + uint32_t s2 = alphabet[0xFF & (s >> 16)]; + uint32_t s3 = alphabet[0xFF & (s >> 24)]; - s += 1 * 1; - d += 1 * 2; - n -= 1; - } + if (((s0 | s1 | s2 | s3) & 0xC0) != 0) { + if (s_len > 4) { + o.status.repr = wuffs_base__error__bad_data; + goto done; + } else if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + goto done; + } else if ((options & WUFFS_BASE__BASE_64__DECODE_ALLOW_PADDING) && + (s_ptr[3] == '=')) { + pad = true; + if (s_ptr[2] == '=') { + goto src2; + } + goto src3; + } + o.status.repr = wuffs_base__error__bad_data; + goto done; + } - return len; -} + if (d_len < 3) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } -// -------- + s_ptr += 4; + s_len -= 4; + s = (s0 << 18) | (s1 << 12) | (s2 << 6) | (s3 << 0); + *d_ptr++ = (uint8_t)(s >> 16); + *d_ptr++ = (uint8_t)(s >> 8); + *d_ptr++ = (uint8_t)(s >> 0); + d_len -= 3; + } -static uint64_t // -wuffs_base__pixel_swizzler__bgr__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len2 = src_len / 2; - size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + goto done; + } - // TODO: unroll. + if (s_len == 0) { + o.status.repr = NULL; + goto done; + } else if (s_len == 1) { + o.status.repr = wuffs_base__error__bad_data; + goto done; + } else if (s_len == 2) { + goto src2; + } - while (n >= 1) { - uint32_t s0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); +src3: + do { + uint32_t s = wuffs_base__peek_u24le__no_bounds_check(s_ptr); + uint32_t s0 = alphabet[0xFF & (s >> 0)]; + uint32_t s1 = alphabet[0xFF & (s >> 8)]; + uint32_t s2 = alphabet[0xFF & (s >> 16)]; + if ((s0 & 0xC0) || (s1 & 0xC0) || (s2 & 0xC3)) { + o.status.repr = wuffs_base__error__bad_data; + goto done; + } + if (d_len < 2) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + s_ptr += pad ? 4 : 3; + s = (s0 << 18) | (s1 << 12) | (s2 << 6); + *d_ptr++ = (uint8_t)(s >> 16); + *d_ptr++ = (uint8_t)(s >> 8); + o.status.repr = NULL; + goto done; + } while (0); - s += 1 * 2; - d += 1 * 3; - n -= 1; - } +src2: + do { + uint32_t s = wuffs_base__peek_u16le__no_bounds_check(s_ptr); + uint32_t s0 = alphabet[0xFF & (s >> 0)]; + uint32_t s1 = alphabet[0xFF & (s >> 8)]; + if ((s0 & 0xC0) || (s1 & 0xCF)) { + o.status.repr = wuffs_base__error__bad_data; + goto done; + } + if (d_len < 1) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + s_ptr += pad ? 4 : 2; + s = (s0 << 18) | (s1 << 12); + *d_ptr++ = (uint8_t)(s >> 16); + o.status.repr = NULL; + goto done; + } while (0); - return len; +done: + o.num_dst = (size_t)(d_ptr - dst.ptr); + o.num_src = (size_t)(s_ptr - src.ptr); + return o; } -static uint64_t // -wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_64__encode(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) + ? wuffs_base__base_64__encode_url + : wuffs_base__base_64__encode_std; + wuffs_base__transform__output o; + uint8_t* d_ptr = dst.ptr; + size_t d_len = dst.len; + const uint8_t* s_ptr = src.ptr; + size_t s_len = src.len; - // TODO: unroll. + do { + while (s_len >= 3) { + if (d_len < 4) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + uint32_t s = wuffs_base__peek_u24be__no_bounds_check(s_ptr); + s_ptr += 3; + s_len -= 3; + *d_ptr++ = alphabet[0x3F & (s >> 18)]; + *d_ptr++ = alphabet[0x3F & (s >> 12)]; + *d_ptr++ = alphabet[0x3F & (s >> 6)]; + *d_ptr++ = alphabet[0x3F & (s >> 0)]; + d_len -= 4; + } - while (n >= 1) { - uint32_t s0 = - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + goto done; + } - s += 1 * 4; - d += 1 * 3; - n -= 1; - } + if (s_len == 2) { + if (d_len < + ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 3)) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + uint32_t s = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(s_ptr))) + << 8; + s_ptr += 2; + *d_ptr++ = alphabet[0x3F & (s >> 18)]; + *d_ptr++ = alphabet[0x3F & (s >> 12)]; + *d_ptr++ = alphabet[0x3F & (s >> 6)]; + if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { + *d_ptr++ = '='; + } + o.status.repr = NULL; + goto done; - return len; -} + } else if (s_len == 1) { + if (d_len < + ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 2)) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + uint32_t s = ((uint32_t)(wuffs_base__peek_u8__no_bounds_check(s_ptr))) + << 16; + s_ptr += 1; + *d_ptr++ = alphabet[0x3F & (s >> 18)]; + *d_ptr++ = alphabet[0x3F & (s >> 12)]; + if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { + *d_ptr++ = '='; + *d_ptr++ = '='; + } + o.status.repr = NULL; + goto done; -static uint64_t // -wuffs_base__pixel_swizzler__bgr__bgra_nonpremul_4x16le__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len8 = src_len / 8; - size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + } else { + o.status.repr = NULL; + goto done; + } + } while (0); - // TODO: unroll. +done: + o.num_dst = (size_t)(d_ptr - dst.ptr); + o.num_src = (size_t)(s_ptr - src.ptr); + return o; +} - while (n >= 1) { - uint32_t s0 = - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) - s += 1 * 8; - d += 1 * 3; - n -= 1; - } +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__MAGIC) - return len; -} +// ---------------- Magic Numbers -static uint64_t // -wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +// ICO doesn't start with a magic identifier. Instead, see if the opening bytes +// are plausibly ICO. +// +// Callers should have already verified that (prefix_data.len >= 2) and the +// first two bytes are 0x00. +// +// See: +// - https://docs.fileformat.com/image/ico/ +static int32_t // +wuffs_base__magic_number_guess_fourcc__maybe_ico( + wuffs_base__slice_u8 prefix_data, + bool prefix_closed) { + // Allow-list for the Image Type field. + if (prefix_data.len < 4) { + return prefix_closed ? 0 : -1; + } else if (prefix_data.ptr[3] != 0) { + return 0; + } + switch (prefix_data.ptr[2]) { + case 0x01: // ICO + case 0x02: // CUR + break; + default: + return 0; + } - // TODO: unroll. + // The Number Of Images should be positive. + if (prefix_data.len < 6) { + return prefix_closed ? 0 : -1; + } else if ((prefix_data.ptr[4] == 0) && (prefix_data.ptr[5] == 0)) { + return 0; + } - while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sr = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sb = 0x101 * ((uint32_t)s[0]); + // The first ICONDIRENTRY's fourth byte should be zero. + if (prefix_data.len < 10) { + return prefix_closed ? 0 : -1; + } else if (prefix_data.ptr[9] != 0) { + return 0; + } - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + // TODO: have a separate FourCC for CUR? + return 0x49434F20; // 'ICO 'be +} - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; +// TGA doesn't start with a magic identifier. Instead, see if the opening bytes +// are plausibly TGA. +// +// Callers should have already verified that (prefix_data.len >= 2) and the +// second byte (prefix_data.ptr[1], the Color Map Type byte), is either 0x00 or +// 0x01. +// +// See: +// - https://docs.fileformat.com/image/tga/ +// - https://www.dca.fee.unicamp.br/~martino/disciplinas/ea978/tgaffs.pdf +static int32_t // +wuffs_base__magic_number_guess_fourcc__maybe_tga( + wuffs_base__slice_u8 prefix_data, + bool prefix_closed) { + // Allow-list for the Image Type field. + if (prefix_data.len < 3) { + return prefix_closed ? 0 : -1; + } + switch (prefix_data.ptr[2]) { + case 0x01: + case 0x02: + case 0x03: + case 0x09: + case 0x0A: + case 0x0B: + break; + default: + // TODO: 0x20 and 0x21 are invalid, according to the spec, but are + // apparently unofficial extensions. + return 0; + } - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + // Allow-list for the Color Map Entry Size field (if the Color Map Type field + // is non-zero) or else all the Color Map fields should be zero. + if (prefix_data.len < 8) { + return prefix_closed ? 0 : -1; + } else if (prefix_data.ptr[1] != 0x00) { + switch (prefix_data.ptr[7]) { + case 0x0F: + case 0x10: + case 0x18: + case 0x20: + break; + default: + return 0; + } + } else if ((prefix_data.ptr[3] | prefix_data.ptr[4] | prefix_data.ptr[5] | + prefix_data.ptr[6] | prefix_data.ptr[7]) != 0x00) { + return 0; + } - s += 1 * 4; - d += 1 * 3; - n -= 1; + // Allow-list for the Pixel Depth field. + if (prefix_data.len < 17) { + return prefix_closed ? 0 : -1; + } + switch (prefix_data.ptr[16]) { + case 0x01: + case 0x08: + case 0x0F: + case 0x10: + case 0x18: + case 0x20: + break; + default: + return 0; } - return len; + return 0x54474120; // 'TGA 'be } -static uint64_t // -wuffs_base__pixel_swizzler__bgr__bgra_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len8 = src_len / 8; - size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +WUFFS_BASE__MAYBE_STATIC int32_t // +wuffs_base__magic_number_guess_fourcc(wuffs_base__slice_u8 prefix_data, + bool prefix_closed) { + // This is similar to (but different from): + // - the magic/Magdir tables under https://github.com/file/file + // - the MIME Sniffing algorithm at https://mimesniff.spec.whatwg.org/ - // TODO: unroll. + // table holds the 'magic numbers' (which are actually variable length + // strings). The strings may contain NUL bytes, so the "const char* magic" + // value starts with the length-minus-1 of the 'magic number'. + // + // Keep it sorted by magic[1], then magic[0] descending (prioritizing longer + // matches) and finally by magic[2:]. When multiple entries match, the + // longest one wins. + // + // The fourcc field might be negated, in which case there's further + // specialization (see § below). + static struct { + int32_t fourcc; + const char* magic; + } table[] = { + {-0x30302020, "\x01\x00\x00"}, // '00 'be + {+0x475A2020, "\x02\x1F\x8B\x08"}, // GZ + {+0x5A535444, "\x03\x28\xB5\x2F\xFD"}, // ZSTD + {+0x425A3220, "\x02\x42\x5A\x68"}, // BZ2 + {+0x424D5020, "\x01\x42\x4D"}, // BMP + {+0x47494620, "\x03\x47\x49\x46\x38"}, // GIF + {+0x54494646, "\x03\x49\x49\x2A\x00"}, // TIFF (little-endian) + {+0x4C5A4950, "\x04\x4C\x5A\x49\x50\x01"}, // LZIP + {+0x54494646, "\x03\x4D\x4D\x00\x2A"}, // TIFF (big-endian) + {+0x4E50424D, "\x02\x50\x35\x0A"}, // NPBM (P5; *.pgm) + {+0x4E50424D, "\x02\x50\x36\x0A"}, // NPBM (P6; *.ppm) + {-0x52494646, "\x03\x52\x49\x46\x46"}, // RIFF + {+0x4C5A4D41, "\x04\x5D\x00\x10\x00\x00"}, // LZMA + {+0x4C5A4D41, "\x02\x5D\x00\x00"}, // LZMA + {+0x4E494520, "\x02\x6E\xC3\xAF"}, // NIE + {+0x514F4920, "\x03\x71\x6F\x69\x66"}, // QOI + {+0x5A4C4942, "\x01\x78\x9C"}, // ZLIB + {+0x504E4720, "\x03\x89\x50\x4E\x47"}, // PNG + {+0x585A2020, "\x04\xFD\x37\x7A\x58\x5A"}, // XZ + {+0x4A504547, "\x01\xFF\xD8"}, // JPEG + }; + static const size_t table_len = sizeof(table) / sizeof(table[0]); - while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); - uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); - uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); - uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); + if (prefix_data.len == 0) { + return prefix_closed ? 0 : -1; + } + uint8_t pre_first_byte = prefix_data.ptr[0]; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + int32_t fourcc = 0; + size_t i; + for (i = 0; i < table_len; i++) { + uint8_t mag_first_byte = ((uint8_t)(table[i].magic[1])); + if (pre_first_byte < mag_first_byte) { + break; + } else if (pre_first_byte > mag_first_byte) { + continue; + } + fourcc = table[i].fourcc; - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + uint8_t mag_remaining_len = ((uint8_t)(table[i].magic[0])); + if (mag_remaining_len == 0) { + goto match; + } - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + const char* mag_remaining_ptr = table[i].magic + 2; + uint8_t* pre_remaining_ptr = prefix_data.ptr + 1; + size_t pre_remaining_len = prefix_data.len - 1; + if (pre_remaining_len < mag_remaining_len) { + if (!memcmp(pre_remaining_ptr, mag_remaining_ptr, pre_remaining_len)) { + return prefix_closed ? 0 : -1; + } + } else { + if (!memcmp(pre_remaining_ptr, mag_remaining_ptr, mag_remaining_len)) { + goto match; + } + } + } - s += 1 * 8; - d += 1 * 3; - n -= 1; + if (prefix_data.len < 2) { + return prefix_closed ? 0 : -1; + } else if ((prefix_data.ptr[1] == 0x00) || (prefix_data.ptr[1] == 0x01)) { + return wuffs_base__magic_number_guess_fourcc__maybe_tga(prefix_data, + prefix_closed); } - return len; -} + return 0; -static uint64_t // -wuffs_base__pixel_swizzler__bgr__bgra_premul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +match: + // Negative FourCC values (see § above) are further specialized. + if (fourcc < 0) { + fourcc = -fourcc; - while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s0; - d[1] = s1; - d[2] = s2; + if (fourcc == 0x52494646) { // 'RIFF'be + if (prefix_data.len < 12) { + return prefix_closed ? 0 : -1; + } + uint32_t x = wuffs_base__peek_u32be__no_bounds_check(prefix_data.ptr + 8); + if (x == 0x57454250) { // 'WEBP'be + return 0x57454250; // 'WEBP'be + } - s += 1 * 4; - d += 1 * 3; - n -= 1; + } else if (fourcc == 0x30302020) { // '00 'be + // Binary data starting with multiple 0x00 NUL bytes is quite common. + // Unfortunately, some file formats also don't start with a magic + // identifier, so we have to use heuristics (where the order matters, the + // same as /usr/bin/file's magic/Magdir tables) as best we can. Maybe + // it's TGA, ICO/CUR, etc. Maybe it's something else. + int32_t tga = wuffs_base__magic_number_guess_fourcc__maybe_tga( + prefix_data, prefix_closed); + if (tga != 0) { + return tga; + } + int32_t ico = wuffs_base__magic_number_guess_fourcc__maybe_ico( + prefix_data, prefix_closed); + if (ico != 0) { + return ico; + } + if (prefix_data.len < 4) { + return prefix_closed ? 0 : -1; + } else if ((prefix_data.ptr[2] != 0x00) && + ((prefix_data.ptr[2] >= 0x80) || + (prefix_data.ptr[3] != 0x00))) { + // Roughly speaking, this could be a non-degenerate (non-0-width and + // non-0-height) WBMP image. + return 0x57424D50; // 'WBMP'be + } + return 0; + } } - - return len; + return fourcc; } -static uint64_t // -wuffs_base__pixel_swizzler__bgr__bgra_premul__src_over(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; - - while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sr = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sb = 0x101 * ((uint32_t)s[0]); - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__MAGIC) - // Composite src (premul) over dst (premul). - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__PIXCONV) - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); +// ---------------- Pixel Swizzler - s += 1 * 4; - d += 1 * 3; - n -= 1; - } +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_bgrw__bgr__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len); - return len; -} +static uint64_t // +wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len); +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_base__pixel_swizzler__bgr__rgba_nonpremul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len); - // TODO: unroll. +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_xxxx__y__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) - while (n >= 1) { - uint32_t s0 = wuffs_base__swap_u32_argb_abgr( - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); +// -------- - s += 1 * 4; - d += 1 * 3; - n -= 1; - } +static inline uint32_t // +wuffs_private_impl__swap_u32_argb_abgr(uint32_t u) { + uint32_t o = u & 0xFF00FF00ul; + uint32_t r = u & 0x00FF0000ul; + uint32_t b = u & 0x000000FFul; + return o | (r >> 16) | (b << 16); +} - return len; +static inline uint64_t // +wuffs_private_impl__swap_u64_argb_abgr(uint64_t u) { + uint64_t o = u & 0xFFFF0000FFFF0000ull; + uint64_t r = u & 0x0000FFFF00000000ull; + uint64_t b = u & 0x000000000000FFFFull; + return o | (r >> 32) | (b << 32); } -static uint64_t // -wuffs_base__pixel_swizzler__bgr__rgba_nonpremul_4x16le__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len8 = src_len / 8; - size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +static inline uint32_t // +wuffs_private_impl__color_u64__as__color_u32__swap_u32_argb_abgr(uint64_t c) { + uint32_t a = ((uint32_t)(0xFF & (c >> 56))); + uint32_t r = ((uint32_t)(0xFF & (c >> 40))); + uint32_t g = ((uint32_t)(0xFF & (c >> 24))); + uint32_t b = ((uint32_t)(0xFF & (c >> 8))); + return (a << 24) | (b << 16) | (g << 8) | (r << 0); +} - // TODO: unroll. +// -------- - while (n >= 1) { - uint32_t s0 = wuffs_base__swap_u32_argb_abgr( - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); +WUFFS_BASE__MAYBE_STATIC wuffs_base__color_u32_argb_premul // +wuffs_base__pixel_buffer__color_u32_at(const wuffs_base__pixel_buffer* pb, + uint32_t x, + uint32_t y) { + if (!pb || (x >= pb->pixcfg.private_impl.width) || + (y >= pb->pixcfg.private_impl.height)) { + return 0; + } - s += 1 * 8; - d += 1 * 3; - n -= 1; + if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { + // TODO: support planar formats. + return 0; } - return len; -} + size_t stride = pb->private_impl.planes[0].stride; + const uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); -static uint64_t // -wuffs_base__pixel_swizzler__bgr__rgba_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + switch (pb->pixcfg.private_impl.pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + return wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x))); - // TODO: unroll. + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { + uint8_t* palette = pb->private_impl.planes[3].ptr; + return wuffs_base__peek_u32le__no_bounds_check(palette + + (4 * ((size_t)row[x]))); + } - while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sb = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sr = 0x101 * ((uint32_t)s[0]); + // Common formats above. Rarer formats below. - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + case WUFFS_BASE__PIXEL_FORMAT__Y: + return 0xFF000000 | (0x00010101 * ((uint32_t)(row[x]))); + case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: + return 0xFF000000 | (0x00010101 * ((uint32_t)(row[(2 * x) + 1]))); + case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: + return 0xFF000000 | (0x00010101 * ((uint32_t)(row[(2 * x) + 0]))); + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + (((uint32_t)(row[(2 * x) + 1])) << 24) | + (((uint32_t)(row[(2 * x) + 0])) * 0x00010101)); - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: { + uint8_t* palette = pb->private_impl.planes[3].ptr; + return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(palette + + (4 * ((size_t)row[x])))); + } - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + return wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(row + (2 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__BGR: + return 0xFF000000 | + wuffs_base__peek_u24le__no_bounds_check(row + (3 * ((size_t)x))); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + return wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u64le__no_bounds_check(row + (8 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + return 0xFF000000 | + wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x))); - s += 1 * 4; - d += 1 * 3; - n -= 1; + case WUFFS_BASE__PIXEL_FORMAT__RGB: + return wuffs_private_impl__swap_u32_argb_abgr( + 0xFF000000 | + wuffs_base__peek_u24le__no_bounds_check(row + (3 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + return wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(row + + (4 * ((size_t)x))))); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + return wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + return wuffs_private_impl__swap_u32_argb_abgr( + 0xFF000000 | + wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); + + default: + // TODO: support more formats. + break; } - return len; + return 0; } -static uint64_t // -wuffs_base__pixel_swizzler__bgr__rgba_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len8 = src_len / 8; - size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +// -------- - // TODO: unroll. +WUFFS_BASE__MAYBE_STATIC wuffs_base__status // +wuffs_base__pixel_buffer__set_color_u32_at( + wuffs_base__pixel_buffer* pb, + uint32_t x, + uint32_t y, + wuffs_base__color_u32_argb_premul color) { + if (!pb) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if ((x >= pb->pixcfg.private_impl.width) || + (y >= pb->pixcfg.private_impl.height)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } - while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); - uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); - uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); - uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); + if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { + // TODO: support planar formats. + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + size_t stride = pb->private_impl.planes[0].stride; + uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + switch (pb->pixcfg.private_impl.pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + wuffs_base__poke_u32le__no_bounds_check(row + (4 * ((size_t)x)), color); + break; - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + // Common formats above. Rarer formats below. - s += 1 * 8; - d += 1 * 3; - n -= 1; - } + case WUFFS_BASE__PIXEL_FORMAT__Y: + wuffs_base__poke_u8__no_bounds_check( + row + ((size_t)x), + wuffs_base__color_u32_argb_premul__as__color_u8_gray(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: + wuffs_base__poke_u16le__no_bounds_check( + row + (2 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u16_gray(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: + wuffs_base__poke_u16be__no_bounds_check( + row + (2 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u16_gray(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + wuffs_base__poke_u16le__no_bounds_check( + row + (2 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u16_alpha_gray_nonpremul( + color)); + break; - return len; -} + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: + wuffs_base__poke_u8__no_bounds_check( + row + ((size_t)x), wuffs_base__pixel_palette__closest_element( + wuffs_base__pixel_buffer__palette(pb), + pb->pixcfg.private_impl.pixfmt, color)); + break; -static uint64_t // -wuffs_base__pixel_swizzler__bgr__rgba_premul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + wuffs_base__poke_u16le__no_bounds_check( + row + (2 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__BGR: + wuffs_base__poke_u24le__no_bounds_check(row + (3 * ((size_t)x)), color); + break; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + wuffs_base__poke_u32le__no_bounds_check( + row + (4 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + wuffs_base__poke_u64le__no_bounds_check( + row + (8 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( + color)); + break; - while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s2; - d[1] = s1; - d[2] = s0; + case WUFFS_BASE__PIXEL_FORMAT__RGB: + wuffs_base__poke_u24le__no_bounds_check( + row + (3 * ((size_t)x)), + wuffs_private_impl__swap_u32_argb_abgr(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + wuffs_base__poke_u32le__no_bounds_check( + row + (4 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + wuffs_private_impl__swap_u32_argb_abgr(color))); + break; + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + wuffs_base__poke_u32le__no_bounds_check( + row + (4 * ((size_t)x)), + wuffs_private_impl__swap_u32_argb_abgr(color)); + break; - s += 1 * 4; - d += 1 * 3; - n -= 1; + default: + // TODO: support more formats. + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } - return len; + return wuffs_base__make_status(NULL); } -static uint64_t // -wuffs_base__pixel_swizzler__bgr__rgba_premul__src_over(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +// -------- - while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sb = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sr = 0x101 * ((uint32_t)s[0]); +static inline void // +wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xx( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + uint16_t color) { + size_t stride = pb->private_impl.planes[0].stride; + uint32_t width = wuffs_base__rect_ie_u32__width(&rect); + if ((stride == (2 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { + uint8_t* ptr = + pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); + uint32_t height = wuffs_base__rect_ie_u32__height(&rect); + size_t n; + for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { + wuffs_base__poke_u16le__no_bounds_check(ptr, color); + ptr += 2; + } + return; + } - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + + (2 * ((size_t)rect.min_incl_x)); + uint32_t n; + for (n = width; n > 0; n--) { + wuffs_base__poke_u16le__no_bounds_check(ptr, color); + ptr += 2; + } + } +} - // Composite src (premul) over dst (premul). - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); +static inline void // +wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxx( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + uint32_t color) { + size_t stride = pb->private_impl.planes[0].stride; + uint32_t width = wuffs_base__rect_ie_u32__width(&rect); + if ((stride == (3 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { + uint8_t* ptr = + pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); + uint32_t height = wuffs_base__rect_ie_u32__height(&rect); + size_t n; + for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { + wuffs_base__poke_u24le__no_bounds_check(ptr, color); + ptr += 3; + } + return; + } - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + + (3 * ((size_t)rect.min_incl_x)); + uint32_t n; + for (n = width; n > 0; n--) { + wuffs_base__poke_u24le__no_bounds_check(ptr, color); + ptr += 3; + } + } +} - s += 1 * 4; - d += 1 * 3; - n -= 1; +static inline void // +wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + uint32_t color) { + size_t stride = pb->private_impl.planes[0].stride; + uint32_t width = wuffs_base__rect_ie_u32__width(&rect); + if ((stride == (4 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { + uint8_t* ptr = + pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); + uint32_t height = wuffs_base__rect_ie_u32__height(&rect); + size_t n; + for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { + wuffs_base__poke_u32le__no_bounds_check(ptr, color); + ptr += 4; + } + return; } - return len; + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + + (4 * ((size_t)rect.min_incl_x)); + uint32_t n; + for (n = width; n > 0; n--) { + wuffs_base__poke_u32le__no_bounds_check(ptr, color); + ptr += 4; + } + } } -static uint64_t // -wuffs_base__pixel_swizzler__bgr__rgbx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +static inline void // +wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxxxxxx( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + uint64_t color) { + size_t stride = pb->private_impl.planes[0].stride; + uint32_t width = wuffs_base__rect_ie_u32__width(&rect); + if ((stride == (8 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { + uint8_t* ptr = + pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); + uint32_t height = wuffs_base__rect_ie_u32__height(&rect); + size_t n; + for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { + wuffs_base__poke_u64le__no_bounds_check(ptr, color); + ptr += 8; + } + return; + } - // TODO: unroll. + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + + (8 * ((size_t)rect.min_incl_x)); + uint32_t n; + for (n = width; n > 0; n--) { + wuffs_base__poke_u64le__no_bounds_check(ptr, color); + ptr += 8; + } + } +} - while (n >= 1) { - uint8_t b0 = s[0]; - uint8_t b1 = s[1]; - uint8_t b2 = s[2]; - d[0] = b2; - d[1] = b1; - d[2] = b0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status // +wuffs_base__pixel_buffer__set_color_u32_fill_rect( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + wuffs_base__color_u32_argb_premul color) { + if (!pb) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } else if (wuffs_base__rect_ie_u32__is_empty(&rect)) { + return wuffs_base__make_status(NULL); + } + wuffs_base__rect_ie_u32 bounds = + wuffs_base__pixel_config__bounds(&pb->pixcfg); + if (!wuffs_base__rect_ie_u32__contains_rect(&bounds, rect)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } - s += 1 * 4; - d += 1 * 3; - n -= 1; + if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { + // TODO: support planar formats. + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } - return len; -} + switch (pb->pixcfg.private_impl.pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx(pb, rect, + color); + return wuffs_base__make_status(NULL); -// -------- + // Common formats above. Rarer formats below. -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xx( + pb, rect, + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); + return wuffs_base__make_status(NULL); - while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); + case WUFFS_BASE__PIXEL_FORMAT__BGR: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxx(pb, rect, + color); + return wuffs_base__make_status(NULL); - s += 1 * 4; - d += 1 * 4; - n -= 1; - } + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( + pb, rect, + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + color)); + return wuffs_base__make_status(NULL); - return len; -} + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxxxxxx( + pb, rect, + wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( + color)); + return wuffs_base__make_status(NULL); -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul_4x16le__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( + pb, rect, + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + wuffs_private_impl__swap_u32_argb_abgr(color))); + return wuffs_base__make_status(NULL); - size_t n = len; - while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__color_u64__as__color_u32( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( + pb, rect, wuffs_private_impl__swap_u32_argb_abgr(color)); + return wuffs_base__make_status(NULL); + } - s += 1 * 8; - d += 1 * 4; - n -= 1; + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint32_t x; + for (x = rect.min_incl_x; x < rect.max_excl_x; x++) { + wuffs_base__pixel_buffer__set_color_u32_at(pb, x, y, color); + } } - return len; + return wuffs_base__make_status(NULL); } -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; - - while (n >= 1) { - uint64_t d0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u64__as__color_u32( - wuffs_base__composite_nonpremul_nonpremul_u64_axxx(d0, s0))); +// -------- - s += 1 * 8; - d += 1 * 4; - n -= 1; +WUFFS_BASE__MAYBE_STATIC uint8_t // +wuffs_base__pixel_palette__closest_element( + wuffs_base__slice_u8 palette_slice, + wuffs_base__pixel_format palette_format, + wuffs_base__color_u32_argb_premul c) { + size_t n = palette_slice.len / 4; + if (n > (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + n = (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4); } + size_t best_index = 0; + uint64_t best_score = 0xFFFFFFFFFFFFFFFF; - return len; -} - -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_premul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + // Work in 16-bit color. + uint32_t ca = 0x101 * (0xFF & (c >> 24)); + uint32_t cr = 0x101 * (0xFF & (c >> 16)); + uint32_t cg = 0x101 * (0xFF & (c >> 8)); + uint32_t cb = 0x101 * (0xFF & (c >> 0)); - while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul(s0)); + switch (palette_format.repr) { + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { + bool nonpremul = palette_format.repr == + WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL; - s += 1 * 4; - d += 1 * 4; - n -= 1; + size_t i; + for (i = 0; i < n; i++) { + // Work in 16-bit color. + uint32_t pb = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 0])); + uint32_t pg = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 1])); + uint32_t pr = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 2])); + uint32_t pa = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 3])); + + // Convert to premultiplied alpha. + if (nonpremul && (pa != 0xFFFF)) { + pb = (pb * pa) / 0xFFFF; + pg = (pg * pa) / 0xFFFF; + pr = (pr * pa) / 0xFFFF; + } + + // These deltas are conceptually int32_t (signed) but after squaring, + // it's equivalent to work in uint32_t (unsigned). + pb -= cb; + pg -= cg; + pr -= cr; + pa -= ca; + uint64_t score = ((uint64_t)(pb * pb)) + ((uint64_t)(pg * pg)) + + ((uint64_t)(pr * pr)) + ((uint64_t)(pa * pa)); + if (best_score > score) { + best_score = score; + best_index = i; + } + } + break; + } } - return len; + return (uint8_t)best_index; } -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +// -------- - while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__composite_nonpremul_premul_u32_axxx(d0, s0)); +static inline uint32_t // +wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx( + uint32_t dst_nonpremul, + uint32_t src_nonpremul) { + // Extract 16-bit color components. + // + // If the destination is transparent then SRC_OVER is equivalent to SRC: just + // return src_nonpremul. This isn't just an optimization (skipping the rest + // of the function's computation). It also preserves the nonpremul + // distinction between e.g. transparent red and transparent blue that would + // otherwise be lost by converting from nonpremul to premul and back. + uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); + if (da == 0) { + return src_nonpremul; + } + uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); + uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); + uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); + uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); + uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); + uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); + uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); - s += 1 * 4; - d += 1 * 4; - n -= 1; + // Convert dst from nonpremul to premul. + dr = (dr * da) / 0xFFFF; + dg = (dg * da) / 0xFFFF; + db = (db * da) / 0xFFFF; + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert dst from premul to nonpremul. + if (da != 0) { + dr = (dr * 0xFFFF) / da; + dg = (dg * 0xFFFF) / da; + db = (db * 0xFFFF) / da; } - return len; + // Convert from 16-bit color to 8-bit color. + da >>= 8; + dr >>= 8; + dg >>= 8; + db >>= 8; + + // Combine components. + return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); } -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__index_bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; +static inline uint64_t // +wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx( + uint64_t dst_nonpremul, + uint64_t src_nonpremul) { + // Extract components. + // + // If the destination is transparent then SRC_OVER is equivalent to SRC: just + // return src_nonpremul. This isn't just an optimization (skipping the rest + // of the function's computation). It also preserves the nonpremul + // distinction between e.g. transparent red and transparent blue that would + // otherwise be lost by converting from nonpremul to premul and back. + uint64_t da = 0xFFFF & (dst_nonpremul >> 48); + if (da == 0) { + return src_nonpremul; } - size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + uint64_t dr = 0xFFFF & (dst_nonpremul >> 32); + uint64_t dg = 0xFFFF & (dst_nonpremul >> 16); + uint64_t db = 0xFFFF & (dst_nonpremul >> 0); + uint64_t sa = 0xFFFF & (src_nonpremul >> 48); + uint64_t sr = 0xFFFF & (src_nonpremul >> 32); + uint64_t sg = 0xFFFF & (src_nonpremul >> 16); + uint64_t sb = 0xFFFF & (src_nonpremul >> 0); - // TODO: unroll. + // Convert dst from nonpremul to premul. + dr = (dr * da) / 0xFFFF; + dg = (dg * da) / 0xFFFF; + db = (db * da) / 0xFFFF; - while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint64_t ia = 0xFFFF - sa; - s += 1 * 1; - d += 1 * 4; - n -= 1; + // Composite src (nonpremul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert dst from premul to nonpremul. + if (da != 0) { + dr = (dr * 0xFFFF) / da; + dg = (dg * 0xFFFF) / da; + db = (db * 0xFFFF) / da; } - return len; + // Combine components. + return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); } -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +static inline uint32_t // +wuffs_private_impl__composite_nonpremul_premul_u32_axxx(uint32_t dst_nonpremul, + uint32_t src_premul) { + // Extract 16-bit color components. + uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); + uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); + uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); + uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); + uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); + uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); + uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); + uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); - while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); + // Convert dst from nonpremul to premul. + dr = (dr * da) / 0xFFFF; + dg = (dg * da) / 0xFFFF; + db = (db * da) / 0xFFFF; - s += 1 * 4; - d += 1 * 4; - n -= 1; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (premul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); + + // Convert dst from premul to nonpremul. + if (da != 0) { + dr = (dr * 0xFFFF) / da; + dg = (dg * 0xFFFF) / da; + db = (db * 0xFFFF) / da; } - return len; + // Convert from 16-bit color to 8-bit color. + da >>= 8; + dr >>= 8; + dg >>= 8; + db >>= 8; + + // Combine components. + return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); } -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_premul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +static inline uint64_t // +wuffs_private_impl__composite_nonpremul_premul_u64_axxx(uint64_t dst_nonpremul, + uint64_t src_premul) { + // Extract components. + uint64_t da = 0xFFFF & (dst_nonpremul >> 48); + uint64_t dr = 0xFFFF & (dst_nonpremul >> 32); + uint64_t dg = 0xFFFF & (dst_nonpremul >> 16); + uint64_t db = 0xFFFF & (dst_nonpremul >> 0); + uint64_t sa = 0xFFFF & (src_premul >> 48); + uint64_t sr = 0xFFFF & (src_premul >> 32); + uint64_t sg = 0xFFFF & (src_premul >> 16); + uint64_t sb = 0xFFFF & (src_premul >> 0); - while (n >= 1) { - uint32_t s0 = wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul(s0)); + // Convert dst from nonpremul to premul. + dr = (dr * da) / 0xFFFF; + dg = (dg * da) / 0xFFFF; + db = (db * da) / 0xFFFF; - s += 1 * 4; - d += 1 * 4; - n -= 1; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint64_t ia = 0xFFFF - sa; + + // Composite src (premul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); + + // Convert dst from premul to nonpremul. + if (da != 0) { + dr = (dr * 0xFFFF) / da; + dg = (dg * 0xFFFF) / da; + db = (db * 0xFFFF) / da; } - return len; + // Combine components. + return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); } -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; +static inline uint32_t // +wuffs_private_impl__composite_premul_nonpremul_u32_axxx( + uint32_t dst_premul, + uint32_t src_nonpremul) { + // Extract 16-bit color components. + uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); + uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); + uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); + uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); + uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); + uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); + uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); + uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); - while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__composite_nonpremul_premul_u32_axxx(d0, s0)); + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - s += 1 * 4; - d += 1 * 4; - n -= 1; - } + // Composite src (nonpremul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; - return len; + // Convert from 16-bit color to 8-bit color. + da >>= 8; + dr >>= 8; + dg >>= 8; + db >>= 8; + + // Combine components. + return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); +} + +static inline uint64_t // +wuffs_private_impl__composite_premul_nonpremul_u64_axxx( + uint64_t dst_premul, + uint64_t src_nonpremul) { + // Extract components. + uint64_t da = 0xFFFF & (dst_premul >> 48); + uint64_t dr = 0xFFFF & (dst_premul >> 32); + uint64_t dg = 0xFFFF & (dst_premul >> 16); + uint64_t db = 0xFFFF & (dst_premul >> 0); + uint64_t sa = 0xFFFF & (src_nonpremul >> 48); + uint64_t sr = 0xFFFF & (src_nonpremul >> 32); + uint64_t sg = 0xFFFF & (src_nonpremul >> 16); + uint64_t sb = 0xFFFF & (src_nonpremul >> 0); + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint64_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Combine components. + return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); +} + +static inline uint32_t // +wuffs_private_impl__composite_premul_premul_u32_axxx(uint32_t dst_premul, + uint32_t src_premul) { + // Extract 16-bit color components. + uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); + uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); + uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); + uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); + uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); + uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); + uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); + uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (premul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); + + // Convert from 16-bit color to 8-bit color. + da >>= 8; + dr >>= 8; + dg >>= 8; + db >>= 8; + + // Combine components. + return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); } // -------- static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; +wuffs_private_impl__swizzle_squash_align4_bgr_565_8888(uint8_t* dst_ptr, + size_t dst_len, + const uint8_t* src_ptr, + size_t src_len, + bool nonpremul) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - uint8_t s3 = s[3]; - d[0] = s0; - d[1] = s0; - d[2] = s1; - d[3] = s1; - d[4] = s2; - d[5] = s2; - d[6] = s3; - d[7] = s3; - - s += 1 * 4; - d += 1 * 8; - n -= 1; + while (n--) { + uint32_t argb = wuffs_base__peek_u32le__no_bounds_check(s); + if (nonpremul) { + argb = + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(argb); + } + uint32_t b5 = 0x1F & (argb >> (8 - 5)); + uint32_t g6 = 0x3F & (argb >> (16 - 6)); + uint32_t r5 = 0x1F & (argb >> (24 - 5)); + uint32_t alpha = argb & 0xFF000000; + wuffs_base__poke_u32le__no_bounds_check( + d, alpha | (r5 << 11) | (g6 << 5) | (b5 << 0)); + s += 4; + d += 4; } return len; } +// -------- + static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; +wuffs_private_impl__swizzle_swap_rgb_bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_base__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - - s += 1 * 4; - d += 1 * 8; - n -= 1; + while (n--) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s2; + d[1] = s1; + d[2] = s0; + s += 3; + d += 3; } return len; } +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len8 = src_len / 8; - size_t len = (dst_len8 < src_len8) ? dst_len8 : src_len8; +wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_base__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - s += 1 * 8; - d += 1 * 8; - n -= 1; + __m128i shuffle = _mm_set_epi8(+0x0F, +0x0C, +0x0D, +0x0E, // + +0x0B, +0x08, +0x09, +0x0A, // + +0x07, +0x04, +0x05, +0x06, // + +0x03, +0x00, +0x01, +0x02); + + while (n >= 4) { + __m128i x; + x = _mm_lddqu_si128((const __m128i*)(const void*)s); + x = _mm_shuffle_epi8(x, shuffle); + _mm_storeu_si128((__m128i*)(void*)d, x); + + s += 4 * 4; + d += 4 * 4; + n -= 4; + } + + while (n--) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + uint8_t s3 = s[3]; + d[0] = s2; + d[1] = s1; + d[2] = s0; + d[3] = s3; + s += 4; + d += 4; } return len; } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_premul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; +wuffs_private_impl__swizzle_swap_rgbx_bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - while (n >= 1) { - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); - wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); - - s += 1 * 4; - d += 1 * 8; - n -= 1; + while (n--) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + uint8_t s3 = s[3]; + d[0] = s2; + d[1] = s1; + d[2] = s0; + d[3] = s3; + s += 4; + d += 4; } return len; } -static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - - size_t n = len; - while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), wuffs_base__composite_nonpremul_premul_u64_axxx(d0, s0)); +// -------- - s += 1 * 4; - d += 1 * 8; - n -= 1; +static uint64_t // +wuffs_private_impl__swizzle_copy_1_1(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t len = (dst_len < src_len) ? dst_len : src_len; + if (len > 0) { + memmove(dst_ptr, src_ptr, len); } return len; } static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__index_bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; +wuffs_private_impl__swizzle_copy_2_2(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; + if (len > 0) { + memmove(dst_ptr, src_ptr, len * 2); } - size_t dst_len8 = dst_len / 8; - size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; - - while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_base__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); + return len; +} - s += 1 * 1; - d += 1 * 8; - n -= 1; +static uint64_t // +wuffs_private_impl__swizzle_copy_3_3(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len3 = src_len / 3; + size_t len = (dst_len3 < src_len3) ? dst_len3 : src_len3; + if (len > 0) { + memmove(dst_ptr, src_ptr, len * 3); } - return len; } static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__rgba_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; +wuffs_private_impl__swizzle_copy_4_4(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - - size_t n = len; - while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - uint8_t s3 = s[3]; - d[0] = s2; - d[1] = s2; - d[2] = s1; - d[3] = s1; - d[4] = s0; - d[5] = s0; - d[6] = s3; - d[7] = s3; - - s += 1 * 4; - d += 1 * 8; - n -= 1; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + if (len > 0) { + memmove(dst_ptr, src_ptr, len * 4); } return len; } static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__rgba_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_copy_8_8(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - - size_t n = len; - while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = - wuffs_base__color_u32__as__color_u64(wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_base__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - - s += 1 * 4; - d += 1 * 8; - n -= 1; + size_t src_len8 = src_len / 8; + size_t len = (dst_len8 < src_len8) ? dst_len8 : src_len8; + if (len > 0) { + memmove(dst_ptr, src_ptr, len * 8); } return len; } +// -------- + static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__rgba_premul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; +wuffs_private_impl__swizzle_bgr_565__bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len3 = src_len / 3; + size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + + // TODO: unroll. + while (n >= 1) { - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); - wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); + uint32_t b5 = (uint32_t)(s[0] >> 3); + uint32_t g6 = (uint32_t)(s[1] >> 2); + uint32_t r5 = (uint32_t)(s[2] >> 3); + uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); - s += 1 * 4; - d += 1 * 8; + s += 1 * 3; + d += 1 * 2; n -= 1; } + return len; } static uint64_t // -wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__rgba_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; +wuffs_private_impl__swizzle_bgr_565__bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + + // TODO: unroll. + while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = - wuffs_base__color_u32__as__color_u64(wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), wuffs_base__composite_nonpremul_premul_u64_axxx(d0, s0)); + uint32_t b5 = (uint32_t)(s[0] >> 3); + uint32_t g6 = (uint32_t)(s[1] >> 2); + uint32_t r5 = (uint32_t)(s[2] >> 3); + uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); s += 1 * 4; - d += 1 * 8; + d += 1 * 2; n -= 1; } + return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src( +wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; + size_t dst_len2 = dst_len / 2; size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22217,13 +23221,14 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src( // TODO: unroll. while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); s += 1 * 4; - d += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22231,16 +23236,16 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul_4x16le__src( +wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; + size_t dst_len2 = dst_len / 2; size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t len = (dst_len2 < src_len8) ? dst_len2 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22248,13 +23253,14 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul_4x16le__src( // TODO: unroll. while (n >= 1) { - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul(s0)); + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))))); s += 1 * 8; - d += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22262,16 +23268,16 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul_4x16le__src( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; + size_t dst_len2 = dst_len / 2; size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22279,13 +23285,38 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__composite_premul_nonpremul_u32_axxx(d0, s0)); + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); + + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); s += 1 * 4; - d += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22293,16 +23324,16 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul_4x16le__src_over( +wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; + size_t dst_len2 = dst_len / 2; size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t len = (dst_len2 < src_len8) ? dst_len2 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22310,16 +23341,38 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul_4x16le__src_over( // TODO: unroll. while (n >= 1) { - uint64_t d0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u64__as__color_u32( - wuffs_base__composite_premul_nonpremul_u64_axxx(d0, s0))); + // Extract 16-bit color components. + uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); + uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); + uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); + uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); + + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); s += 1 * 8; - d += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22327,16 +23380,15 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul_4x16le__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__bgra_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; +wuffs_private_impl__swizzle_bgr_565__bgra_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22344,13 +23396,12 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_premul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__composite_premul_premul_u32_axxx(d0, s0)); + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); s += 1 * 4; - d += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22358,19 +23409,16 @@ wuffs_base__pixel_swizzler__bgra_premul__bgra_premul__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__index_bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_bgr_565__bgra_premul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22378,14 +23426,38 @@ wuffs_base__pixel_swizzler__bgra_premul__index_bgra_nonpremul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__composite_premul_nonpremul_u32_axxx(d0, s0)); + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); - s += 1 * 1; - d += 1 * 4; + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (premul) over dst (premul). + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); + + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + + s += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22393,16 +23465,15 @@ wuffs_base__pixel_swizzler__bgra_premul__index_bgra_nonpremul__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; +wuffs_private_impl__swizzle_bgr_565__rgb(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len3 = src_len / 3; + size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22410,14 +23481,14 @@ wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src( // TODO: unroll. while (n >= 1) { - uint32_t s0 = wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); + uint32_t r5 = (uint32_t)(s[0] >> 3); + uint32_t g6 = (uint32_t)(s[1] >> 2); + uint32_t b5 = (uint32_t)(s[2] >> 3); + uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); - s += 1 * 4; - d += 1 * 4; + s += 1 * 3; + d += 1 * 2; n -= 1; } @@ -22425,16 +23496,16 @@ wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src_over( +wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; + size_t dst_len2 = dst_len / 2; size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22442,14 +23513,15 @@ wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__composite_premul_nonpremul_u32_axxx(d0, s0)); + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))))); s += 1 * 4; - d += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22457,16 +23529,16 @@ wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul_4x16le__src( +wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22474,32 +23546,54 @@ wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul_4x16le__src( // TODO: unroll. while (n >= 1) { - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__swap_u32_argb_abgr( - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - s0))); - - s += 1 * 8; - d += 1 * 4; - n -= 1; + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sb = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sr = 0x101 * ((uint32_t)s[0]); + + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + + s += 1 * 4; + d += 1 * 2; + n -= 1; } return len; } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; +wuffs_private_impl__swizzle_bgr_565__rgba_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22507,17 +23601,14 @@ wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul_4x16le__src_over( // TODO: unroll. while (n >= 1) { - uint64_t d0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); - uint64_t s0 = wuffs_base__swap_u64_argb_abgr( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u64__as__color_u32( - wuffs_base__composite_premul_nonpremul_u64_axxx(d0, s0))); + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); - s += 1 * 8; - d += 1 * 4; + s += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22525,47 +23616,70 @@ wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul_4x16le__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__bgra_premul__rgba_premul__src_over( +wuffs_private_impl__swizzle_bgr_565__rgba_premul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; + size_t dst_len2 = dst_len / 2; size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__composite_premul_premul_u32_axxx(d0, s0)); + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sb = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sr = 0x101 * ((uint32_t)s[0]); + + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (premul) over dst (premul). + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); + + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); s += 1 * 4; - d += 1 * 4; + d += 1 * 2; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__bgrw__bgr(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len3 = src_len / 3; - size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; +wuffs_private_impl__swizzle_bgr_565__y(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22573,12 +23687,13 @@ wuffs_base__pixel_swizzler__bgrw__bgr(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - 0xFF000000 | wuffs_base__peek_u24le__no_bounds_check(s + (0 * 3))); + uint32_t y5 = (uint32_t)(s[0] >> 3); + uint32_t y6 = (uint32_t)(s[0] >> 2); + uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); - s += 1 * 3; - d += 1 * 4; + s += 1 * 1; + d += 1 * 2; n -= 1; } @@ -22586,15 +23701,15 @@ wuffs_base__pixel_swizzler__bgrw__bgr(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__bgrw__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; +wuffs_private_impl__swizzle_bgr_565__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; size_t src_len2 = src_len / 2; - size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22602,12 +23717,13 @@ wuffs_base__pixel_swizzler__bgrw__bgr_565(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2)))); + uint32_t y5 = (uint32_t)(s[0] >> 3); + uint32_t y6 = (uint32_t)(s[0] >> 2); + uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); s += 1 * 2; - d += 1 * 4; + d += 1 * 2; n -= 1; } @@ -22615,15 +23731,15 @@ wuffs_base__pixel_swizzler__bgrw__bgr_565(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__bgrw__bgrx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; +wuffs_private_impl__swizzle_bgr_565__ya_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22631,100 +23747,121 @@ wuffs_base__pixel_swizzler__bgrw__bgrx(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - 0xFF000000 | wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); - s += 1 * 4; - d += 1 * 4; + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + s0))); + + s += 1 * 2; + d += 1 * 2; n -= 1; } return len; } -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_base__pixel_swizzler__bgrw__rgb__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len3 = src_len / 3; - size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; +wuffs_private_impl__swizzle_bgr_565__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - __m128i shuffle = _mm_set_epi8(+0x00, +0x09, +0x0A, +0x0B, // - +0x00, +0x06, +0x07, +0x08, // - +0x00, +0x03, +0x04, +0x05, // - +0x00, +0x00, +0x01, +0x02); - __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00); + // TODO: unroll. - while (n >= 6) { - __m128i x; - x = _mm_lddqu_si128((const __m128i*)(const void*)s); - x = _mm_shuffle_epi8(x, shuffle); - x = _mm_or_si128(x, or_ff); - _mm_storeu_si128((__m128i*)(void*)d, x); + while (n >= 1) { + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[1]); + uint32_t sy = 0x101 * ((uint32_t)s[0]); - s += 4 * 3; - d += 4 * 4; - n -= 4; - } + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; - while (n >= 1) { - uint8_t b0 = s[0]; - uint8_t b1 = s[1]; - uint8_t b2 = s[2]; - d[0] = b2; - d[1] = b1; - d[2] = b0; - d[3] = 0xFF; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - s += 1 * 3; - d += 1 * 4; + // Composite src (nonpremul) over dst (premul). + dr = ((sy * sa) + (dr * ia)) / 0xFFFF; + dg = ((sy * sa) + (dg * ia)) / 0xFFFF; + db = ((sy * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + + s += 1 * 2; + d += 1 * 2; n -= 1; } return len; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 static uint64_t // -wuffs_base__pixel_swizzler__bgrw__rgb(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len3 = src_len / 3; - size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; +wuffs_private_impl__swizzle_bgr_565__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len2 = dst_len / 2; + size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + const size_t loop_unroll_count = 4; + + while (n >= loop_unroll_count) { + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); + wuffs_base__poke_u16le__no_bounds_check( + d + (1 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[1] * 4))); + wuffs_base__poke_u16le__no_bounds_check( + d + (2 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[2] * 4))); + wuffs_base__poke_u16le__no_bounds_check( + d + (3 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[3] * 4))); + + s += loop_unroll_count * 1; + d += loop_unroll_count * 2; + n -= loop_unroll_count; + } + while (n >= 1) { - uint8_t b0 = s[0]; - uint8_t b1 = s[1]; - uint8_t b2 = s[2]; - d[0] = b2; - d[1] = b1; - d[2] = b0; - d[3] = 0xFF; + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); - s += 1 * 3; - d += 1 * 4; + s += 1 * 1; + d += 1 * 2; n -= 1; } @@ -22732,15 +23869,19 @@ wuffs_base__pixel_swizzler__bgrw__rgb(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__bgrw__rgbx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; +wuffs_private_impl__swizzle_bgr_565__index_bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len2 = dst_len / 2; + size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22748,82 +23889,83 @@ wuffs_base__pixel_swizzler__bgrw__rgbx(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - uint8_t b0 = s[0]; - uint8_t b1 = s[1]; - uint8_t b2 = s[2]; - d[0] = b2; - d[1] = b1; - d[2] = b0; - d[3] = 0xFF; + uint32_t d0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2))); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0))); - s += 1 * 4; - d += 1 * 4; + s += 1 * 1; + d += 1 * 2; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__bgrw_4x16le__bgr(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len3 = src_len / 3; - size_t len = (dst_len8 < src_len3) ? dst_len8 : src_len3; +wuffs_private_impl__swizzle_bgr_565__index_binary_alpha__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len2 = dst_len / 2; + size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s0; - d[1] = s0; - d[2] = s1; - d[3] = s1; - d[4] = s2; - d[5] = s2; - d[6] = 0xFF; - d[7] = 0xFF; + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)s0); + } - s += 1 * 3; - d += 1 * 8; + s += 1 * 1; + d += 1 * 2; n -= 1; } return len; } +// -------- + static uint64_t // -wuffs_base__pixel_swizzler__bgrw_4x16le__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; +wuffs_private_impl__swizzle_bgr__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len2 = src_len / 2; - size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_base__color_u32__as__color_u64( - wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); + uint32_t s0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); s += 1 * 2; - d += 1 * 8; + d += 1 * 3; n -= 1; } @@ -22831,87 +23973,46 @@ wuffs_base__pixel_swizzler__bgrw_4x16le__bgr_565(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__bgrw_4x16le__bgrx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; +wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s0; - d[1] = s0; - d[2] = s1; - d[3] = s1; - d[4] = s2; - d[5] = s2; - d[6] = 0xFF; - d[7] = 0xFF; - - s += 1 * 4; - d += 1 * 8; - n -= 1; - } - - return len; -} - -static uint64_t // -wuffs_base__pixel_swizzler__bgrw_4x16le__rgb(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len3 = src_len / 3; - size_t len = (dst_len8 < src_len3) ? dst_len8 : src_len3; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; + // TODO: unroll. while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s2; - d[1] = s2; - d[2] = s1; - d[3] = s1; - d[4] = s0; - d[5] = s0; - d[6] = 0xFF; - d[7] = 0xFF; + uint32_t s0 = + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - s += 1 * 3; - d += 1 * 8; + s += 1 * 4; + d += 1 * 3; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__rgb__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len3 = dst_len / 3; - size_t src_len2 = src_len / 2; - size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; + size_t src_len8 = src_len / 8; + size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22919,13 +24020,12 @@ wuffs_base__pixel_swizzler__rgb__bgr_565(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u24le__no_bounds_check( - d + (0 * 3), - wuffs_base__swap_u32_argb_abgr( - wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); + uint32_t s0 = + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - s += 1 * 2; + s += 1 * 8; d += 1 * 3; n -= 1; } @@ -22933,154 +24033,200 @@ wuffs_base__pixel_swizzler__rgb__bgr_565(uint8_t* dst_ptr, return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__rgba_nonpremul__bgra_nonpremul_4x16le__src( +wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t dst_len3 = dst_len / 3; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + + // TODO: unroll. + while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__color_u64__as__color_u32__swap_u32_argb_abgr( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); - s += 1 * 8; - d += 1 * 4; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); + + s += 1 * 4; + d += 1 * 3; n -= 1; } + return len; } static uint64_t // -wuffs_base__pixel_swizzler__rgba_nonpremul__bgra_nonpremul_4x16le__src_over( +wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; + size_t dst_len3 = dst_len / 3; size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint64_t d0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); - uint64_t s0 = wuffs_base__swap_u64_argb_abgr( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u64__as__color_u32( - wuffs_base__composite_nonpremul_nonpremul_u64_axxx(d0, s0))); + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); + uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); + uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); + uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); s += 1 * 8; - d += 1 * 4; + d += 1 * 3; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__rgbw__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len2 = src_len / 2; - size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; +wuffs_private_impl__swizzle_bgr__bgra_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__swap_u32_argb_abgr( - wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s0; + d[1] = s1; + d[2] = s2; - s += 1 * 2; - d += 1 * 4; + s += 1 * 4; + d += 1 * 3; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__xxx__index__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } +wuffs_private_impl__swizzle_bgr__bgra_premul__src_over(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len3 = dst_len / 3; - size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; + while (n >= 1) { + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); - // The comparison in the while condition is ">", not ">=", because with - // ">=", the last 4-byte store could write past the end of the dst slice. - // - // Each 4-byte store writes one too many bytes, but a subsequent store - // will overwrite that with the correct byte. There is always another - // store, whether a 4-byte store in this loop or a 1-byte store in the - // next loop. - while (n > loop_unroll_count) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 3), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (1 * 3), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[1] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (2 * 3), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[2] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (3 * 3), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[3] * 4))); + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - s += loop_unroll_count * 1; - d += loop_unroll_count * 3; - n -= loop_unroll_count; + // Composite src (premul) over dst (premul). + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); + + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); + + s += 1 * 4; + d += 1 * 3; + n -= 1; } + return len; +} + +static uint64_t // +wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - s += 1 * 1; + s += 1 * 4; d += 1 * 3; n -= 1; } @@ -23089,19 +24235,16 @@ wuffs_base__pixel_swizzler__xxx__index__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__xxx__index_bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } size_t dst_len3 = dst_len / 3; - size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + size_t src_len8 = src_len / 8; + size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23109,14 +24252,12 @@ wuffs_base__pixel_swizzler__xxx__index_bgra_nonpremul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = - wuffs_base__peek_u24le__no_bounds_check(d + (0 * 3)) | 0xFF000000; - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - wuffs_base__poke_u24le__no_bounds_check( - d + (0 * 3), wuffs_base__composite_premul_nonpremul_u32_axxx(d0, s0)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - s += 1 * 1; + s += 1 * 8; d += 1 * 3; n -= 1; } @@ -23125,60 +24266,46 @@ wuffs_base__pixel_swizzler__xxx__index_bgra_nonpremul__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__xxx__index_binary_alpha__src_over( +wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } size_t dst_len3 = dst_len / 3; - size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; + // TODO: unroll. - while (n >= loop_unroll_count) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - } - uint32_t s1 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[1] * 4)); - if (s1) { - wuffs_base__poke_u24le__no_bounds_check(d + (1 * 3), s1); - } - uint32_t s2 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[2] * 4)); - if (s2) { - wuffs_base__poke_u24le__no_bounds_check(d + (2 * 3), s2); - } - uint32_t s3 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[3] * 4)); - if (s3) { - wuffs_base__poke_u24le__no_bounds_check(d + (3 * 3), s3); - } + while (n >= 1) { + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sb = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sr = 0x101 * ((uint32_t)s[0]); - s += loop_unroll_count * 1; - d += loop_unroll_count * 3; - n -= loop_unroll_count; - } + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - } + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; - s += 1 * 1; + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); + + s += 1 * 4; d += 1 * 3; n -= 1; } @@ -23187,15 +24314,16 @@ wuffs_base__pixel_swizzler__xxx__index_binary_alpha__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__xxx__xxxx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23203,10 +24331,29 @@ wuffs_base__pixel_swizzler__xxx__xxxx(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u24le__no_bounds_check( - d + (0 * 3), wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); + uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); + uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); + uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); - s += 1 * 4; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); + + s += 1 * 8; d += 1 * 3; n -= 1; } @@ -23215,27 +24362,28 @@ wuffs_base__pixel_swizzler__xxx__xxxx(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__xxx__y(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgr__rgba_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len3 = dst_len / 3; - size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { uint8_t s0 = s[0]; - d[0] = s0; - d[1] = s0; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s2; + d[1] = s1; d[2] = s0; - s += 1 * 1; + s += 1 * 4; d += 1 * 3; n -= 1; } @@ -23244,28 +24392,43 @@ wuffs_base__pixel_swizzler__xxx__y(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__xxx__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgr__rgba_premul__src_over(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len3 = dst_len / 3; - size_t src_len2 = src_len / 2; - size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - uint8_t s0 = s[0]; - d[0] = s0; - d[1] = s0; - d[2] = s0; + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sb = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sr = 0x101 * ((uint32_t)s[0]); - s += 1 * 2; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (premul) over dst (premul). + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); + + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); + + s += 1 * 4; d += 1 * 3; n -= 1; } @@ -23273,114 +24436,63 @@ wuffs_base__pixel_swizzler__xxx__y_16be(uint8_t* dst_ptr, return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__xxxx__index__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; +wuffs_private_impl__swizzle_bgr__rgbx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; - - while (n >= loop_unroll_count) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (1 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[1] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (2 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[2] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (3 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[3] * 4))); - - s += loop_unroll_count * 1; - d += loop_unroll_count * 4; - n -= loop_unroll_count; - } + // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b2; + d[1] = b1; + d[2] = b0; - s += 1 * 1; - d += 1 * 4; + s += 1 * 4; + d += 1 * 3; n -= 1; } return len; } +// -------- + static uint64_t // -wuffs_base__pixel_swizzler__xxxx__index_binary_alpha__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; - - while (n >= loop_unroll_count) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); - } - uint32_t s1 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[1] * 4)); - if (s1) { - wuffs_base__poke_u32le__no_bounds_check(d + (1 * 4), s1); - } - uint32_t s2 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[2] * 4)); - if (s2) { - wuffs_base__poke_u32le__no_bounds_check(d + (2 * 4), s2); - } - uint32_t s3 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[3] * 4)); - if (s3) { - wuffs_base__poke_u32le__no_bounds_check(d + (3 * 4), s3); - } - - s += loop_unroll_count * 1; - d += loop_unroll_count * 4; - n -= loop_unroll_count; - } - while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); - } + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); - s += 1 * 1; + s += 1 * 4; d += 1 * 4; n -= 1; } @@ -23388,75 +24500,88 @@ wuffs_base__pixel_swizzler__xxxx__index_binary_alpha__src_over( return len; } -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_base__pixel_swizzler__xxxx__y__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; + size_t n = len; + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), wuffs_base__color_u64__as__color_u32( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); - __m128i shuffle = _mm_set_epi8(+0x03, +0x03, +0x03, +0x03, // - +0x02, +0x02, +0x02, +0x02, // - +0x01, +0x01, +0x01, +0x01, // - +0x00, +0x00, +0x00, +0x00); - __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00); - - while (n >= 4) { - __m128i x; - x = _mm_cvtsi32_si128((int)(wuffs_base__peek_u32le__no_bounds_check(s))); - x = _mm_shuffle_epi8(x, shuffle); - x = _mm_or_si128(x, or_ff); - _mm_storeu_si128((__m128i*)(void*)d, x); - - s += 4 * 1; - d += 4 * 4; - n -= 4; + s += 1 * 8; + d += 1 * 4; + n -= 1; } + return len; +} + +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; while (n >= 1) { + uint64_t d0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); + d + (0 * 4), + wuffs_base__color_u64__as__color_u32( + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, + s0))); - s += 1 * 1; + s += 1 * 8; d += 1 * 4; n -= 1; } return len; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 static uint64_t // -wuffs_base__pixel_swizzler__xxxx__y(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); + d + (0 * 4), + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul(s0)); - s += 1 * 1; + s += 1 * 4; d += 1 * 4; n -= 1; } @@ -23465,24 +24590,28 @@ wuffs_base__pixel_swizzler__xxxx__y(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__xxxx__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len2 = src_len / 2; - size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_premul_u32_axxx(d0, s0)); - s += 1 * 2; + s += 1 * 4; d += 1 * 4; n -= 1; } @@ -23490,33 +24619,36 @@ wuffs_base__pixel_swizzler__xxxx__y_16be(uint8_t* dst_ptr, return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__xxxxxxxx__index__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgra_nonpremul__index_bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { if (dst_palette_len != WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { return 0; } - size_t dst_len8 = dst_len / 8; - size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; + size_t dst_len4 = dst_len / 4; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4)))); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); s += 1 * 1; - d += 1 * 8; + d += 1 * 4; n -= 1; } @@ -23524,33 +24656,30 @@ wuffs_base__pixel_swizzler__xxxxxxxx__index__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__xxxxxxxx__index_binary_alpha__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul__rgba_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len8 = dst_len / 8; - size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), wuffs_base__color_u32__as__color_u64(s0)); - } + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); - s += 1 * 1; - d += 1 * 8; + s += 1 * 4; + d += 1 * 4; n -= 1; } @@ -23558,24 +24687,29 @@ wuffs_base__pixel_swizzler__xxxxxxxx__index_binary_alpha__src_over( } static uint64_t // -wuffs_base__pixel_swizzler__xxxxxxxx__y(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; +wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), 0xFFFF000000000000 | (0x010101010101 * (uint64_t)s[0])); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul(s0)); - s += 1 * 1; - d += 1 * 8; + s += 1 * 4; + d += 1 * 4; n -= 1; } @@ -23583,53 +24717,59 @@ wuffs_base__pixel_swizzler__xxxxxxxx__y(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__xxxxxxxx__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len2 = src_len / 2; - size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; +wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - uint64_t s0 = - ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(s + (0 * 2)))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), 0xFFFF000000000000 | (0x000100010001 * s0)); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_premul_u32_axxx(d0, s0)); - s += 1 * 2; - d += 1 * 8; + s += 1 * 4; + d += 1 * 4; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_base__pixel_swizzler__y__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgra_nonpremul__ya_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; size_t src_len2 = src_len / 2; - size_t len = (dst_len < src_len2) ? dst_len : src_len2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - d[0] = s[0]; + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); s += 1 * 2; - d += 1 * 1; + d += 1 * 4; n -= 1; } @@ -23637,27 +24777,31 @@ wuffs_base__pixel_swizzler__y__y_16be(uint8_t* dst_ptr, } static uint64_t // -wuffs_base__pixel_swizzler__y_16le__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; +wuffs_private_impl__swizzle_bgra_nonpremul__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; size_t src_len2 = src_len / 2; - size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - d[0] = s1; - d[1] = s0; + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); s += 1 * 2; - d += 1 * 2; + d += 1 * 4; n -= 1; } @@ -23667,6862 +24811,6000 @@ wuffs_base__pixel_swizzler__y_16le__y_16be(uint8_t* dst_ptr, // -------- static uint64_t // -wuffs_base__pixel_swizzler__transparent_black_src( +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, - uint64_t num_pixels, - uint32_t dst_pixfmt_bytes_per_pixel) { - uint64_t n = ((uint64_t)dst_len) / dst_pixfmt_bytes_per_pixel; - if (n > num_pixels) { - n = num_pixels; + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + + size_t n = len; + while (n >= 1) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + uint8_t s3 = s[3]; + d[0] = s0; + d[1] = s0; + d[2] = s1; + d[3] = s1; + d[4] = s2; + d[5] = s2; + d[6] = s3; + d[7] = s3; + + s += 1 * 4; + d += 1 * 8; + n -= 1; } - memset(dst_ptr, 0, ((size_t)(n * dst_pixfmt_bytes_per_pixel))); - return n; + return len; } static uint64_t // -wuffs_base__pixel_swizzler__transparent_black_src_over( +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, - uint64_t num_pixels, - uint32_t dst_pixfmt_bytes_per_pixel) { - uint64_t n = ((uint64_t)dst_len) / dst_pixfmt_bytes_per_pixel; - if (n > num_pixels) { - n = num_pixels; + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + + size_t n = len; + while (n >= 1) { + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); + + s += 1 * 4; + d += 1 * 8; + n -= 1; } - return n; + return len; } -// -------- +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len8 = src_len / 8; + size_t len = (dst_len8 < src_len8) ? dst_len8 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__y(wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__Y: - return wuffs_base__pixel_swizzler__copy_1_1; + size_t n = len; + while (n >= 1) { + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - return wuffs_base__pixel_swizzler__bgr_565__y; + s += 1 * 8; + d += 1 * 8; + n -= 1; + } + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGR: - case WUFFS_BASE__PIXEL_FORMAT__RGB: - return wuffs_base__pixel_swizzler__xxx__y; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - if (wuffs_base__cpu_arch__have_x86_sse42()) { - return wuffs_base__pixel_swizzler__xxxx__y__x86_sse42; - } -#endif - return wuffs_base__pixel_swizzler__xxxx__y; + size_t n = len; + while (n >= 1) { + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL_4X16LE: - return wuffs_base__pixel_swizzler__xxxxxxxx__y; + s += 1 * 4; + d += 1 * 8; + n -= 1; } - return NULL; + return len; } -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__y_16be(wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__Y: - return wuffs_base__pixel_swizzler__y__y_16be; - - case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: - return wuffs_base__pixel_swizzler__y_16le__y_16be; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: - return wuffs_base__pixel_swizzler__copy_2_2; + size_t n = len; + while (n >= 1) { + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_premul_u64_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - return wuffs_base__pixel_swizzler__bgr_565__y_16be; + s += 1 * 4; + d += 1 * 8; + n -= 1; + } + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGR: - case WUFFS_BASE__PIXEL_FORMAT__RGB: - return wuffs_base__pixel_swizzler__xxx__y_16be; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__index_bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len8 = dst_len / 8; + size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - return wuffs_base__pixel_swizzler__xxxx__y_16be; + while (n >= 1) { + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL_4X16LE: - return wuffs_base__pixel_swizzler__xxxxxxxx__y_16be; + s += 1 * 1; + d += 1 * 8; + n -= 1; } - return NULL; -} -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__indexed__bgra_nonpremul( - wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__copy_1_1; - } - return NULL; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - if (wuffs_base__pixel_swizzler__squash_align4_bgr_565_8888( - dst_palette.ptr, dst_palette.len, src_palette.ptr, - src_palette.len, true) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - return wuffs_base__pixel_swizzler__bgr_565__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - return wuffs_base__pixel_swizzler__bgr_565__index_bgra_nonpremul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - if (wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - return wuffs_base__pixel_swizzler__xxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - return wuffs_base__pixel_swizzler__xxx__index_bgra_nonpremul__src_over; - } - return NULL; + size_t n = len; + while (n >= 1) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + uint8_t s3 = s[3]; + d[0] = s2; + d[1] = s2; + d[2] = s1; + d[3] = s1; + d[4] = s0; + d[5] = s0; + d[6] = s3; + d[7] = s3; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__xxxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__index_bgra_nonpremul__src_over; - } - return NULL; - - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__xxxxxxxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__index_bgra_nonpremul__src_over; - } - return NULL; - - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - if (wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - return wuffs_base__pixel_swizzler__xxxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - return wuffs_base__pixel_swizzler__bgra_premul__index_bgra_nonpremul__src_over; - } - return NULL; - - case WUFFS_BASE__PIXEL_FORMAT__RGB: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - if (wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - return wuffs_base__pixel_swizzler__xxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - if (wuffs_base__pixel_swizzler__swap_rgbx_bgrx( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - return wuffs_base__pixel_swizzler__xxx__index_bgra_nonpremul__src_over; - } - return NULL; + s += 1 * 4; + d += 1 * 8; + n -= 1; + } + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - if (wuffs_base__pixel_swizzler__swap_rgbx_bgrx( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__xxxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__index_bgra_nonpremul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - if (wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - return wuffs_base__pixel_swizzler__xxxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - if (wuffs_base__pixel_swizzler__swap_rgbx_bgrx( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - return wuffs_base__pixel_swizzler__bgra_premul__index_bgra_nonpremul__src_over; - } - return NULL; + size_t n = len; + while (n >= 1) { + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - // TODO. - break; + s += 1 * 4; + d += 1 * 8; + n -= 1; } - return NULL; + return len; } -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__indexed__bgra_binary( - wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__copy_1_1; - } - return NULL; - - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - if (wuffs_base__pixel_swizzler__squash_align4_bgr_565_8888( - dst_palette.ptr, dst_palette.len, src_palette.ptr, - src_palette.len, false) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr_565__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr_565__index_binary_alpha__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_premul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__xxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__xxx__index_binary_alpha__src_over; - } - return NULL; + size_t n = len; + while (n >= 1) { + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); + wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__xxxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__xxxx__index_binary_alpha__src_over; - } - return NULL; + s += 1 * 4; + d += 1 * 8; + n -= 1; + } + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: - if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__xxxxxxxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__xxxxxxxx__index_binary_alpha__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - case WUFFS_BASE__PIXEL_FORMAT__RGB: - if (wuffs_base__pixel_swizzler__swap_rgbx_bgrx( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__xxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__xxx__index_binary_alpha__src_over; - } - return NULL; + size_t n = len; + while (n >= 1) { + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_premul_u64_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - if (wuffs_base__pixel_swizzler__swap_rgbx_bgrx( - dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, - src_palette.len) != - (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - return NULL; - } - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__xxxx__index__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__xxxx__index_binary_alpha__src_over; - } - return NULL; + s += 1 * 4; + d += 1 * 8; + n -= 1; } - return NULL; + return len; } -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__bgr_565( - wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - return wuffs_base__pixel_swizzler__copy_2_2; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__ya_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len2 = src_len / 2; + size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - return wuffs_base__pixel_swizzler__bgr__bgr_565; + size_t n = len; + while (n >= 1) { + uint64_t s0 = ((uint64_t)(s[1]) * 0x0101000000000000) | + ((uint64_t)(s[0]) * 0x0000010101010101); + wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - return wuffs_base__pixel_swizzler__bgrw__bgr_565; + s += 1 * 2; + d += 1 * 8; + n -= 1; + } + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: - return wuffs_base__pixel_swizzler__bgrw_4x16le__bgr_565; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len2 = src_len / 2; + size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - case WUFFS_BASE__PIXEL_FORMAT__RGB: - return wuffs_base__pixel_swizzler__rgb__bgr_565; + size_t n = len; + while (n >= 1) { + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = ((uint64_t)(s[1]) * 0x0101000000000000) | + ((uint64_t)(s[0]) * 0x0000010101010101); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - return wuffs_base__pixel_swizzler__rgbw__bgr_565; + s += 1 * 2; + d += 1 * 8; + n -= 1; } - return NULL; + return len; } -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__bgr(wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - return wuffs_base__pixel_swizzler__bgr_565__bgr; - - case WUFFS_BASE__PIXEL_FORMAT__BGR: - return wuffs_base__pixel_swizzler__copy_3_3; +// -------- - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - return wuffs_base__pixel_swizzler__bgrw__bgr; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: - return wuffs_base__pixel_swizzler__bgrw_4x16le__bgr; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__RGB: - return wuffs_base__pixel_swizzler__swap_rgb_bgr; + while (n >= 1) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - if (wuffs_base__cpu_arch__have_x86_sse42()) { - return wuffs_base__pixel_swizzler__bgrw__rgb__x86_sse42; - } -#endif - return wuffs_base__pixel_swizzler__bgrw__rgb; + s += 1 * 4; + d += 1 * 4; + n -= 1; } - return NULL; -} -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__bgra_nonpremul( - wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul__src_over; - } - return NULL; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGR: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__copy_4_4; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul__src_over; - } - return NULL; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_nonpremul__src_over; - } - return NULL; + while (n >= 1) { + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul(s0)); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src_over; - } - return NULL; + s += 1 * 8; + d += 1 * 4; + n -= 1; + } - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - // TODO. - break; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__RGB: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__rgba_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__rgba_nonpremul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - if (wuffs_base__cpu_arch__have_x86_sse42()) { - return wuffs_base__pixel_swizzler__swap_rgbx_bgrx__x86_sse42; - } -#endif - return wuffs_base__pixel_swizzler__swap_rgbx_bgrx; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_nonpremul__src_over; - } - return NULL; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src_over; - } - return NULL; + while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - // TODO. - break; + s += 1 * 4; + d += 1 * 4; + n -= 1; } - return NULL; + + return len; } -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__bgra_nonpremul_4x16le( - wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul_4x16le__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul_4x16le__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__bgra_nonpremul_4x16le__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__bgra_nonpremul_4x16le__src_over; - } - return NULL; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul_4x16le__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul_4x16le__src_over; - } - return NULL; + while (n >= 1) { + uint64_t d0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u64__as__color_u32( + wuffs_private_impl__composite_premul_nonpremul_u64_axxx(d0, s0))); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__copy_8_8; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_nonpremul_4x16le__src_over; - } - return NULL; - - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul_4x16le__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul_4x16le__src_over; - } - return NULL; + s += 1 * 8; + d += 1 * 4; + n -= 1; + } - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - // TODO. - break; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__RGB: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__rgba_nonpremul_4x16le__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__rgba_nonpremul_4x16le__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__bgra_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__rgba_nonpremul__bgra_nonpremul_4x16le__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__rgba_nonpremul__bgra_nonpremul_4x16le__src_over; - } - break; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul_4x16le__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul_4x16le__src_over; - } - return NULL; + while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_premul_premul_u32_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - // TODO. - break; + s += 1 * 4; + d += 1 * 4; + n -= 1; } - return NULL; -} -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__bgra_premul( - wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr_565__bgra_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr_565__bgra_premul__src_over; - } - return NULL; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGR: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__bgra_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__bgra_premul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__index_bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len4 = dst_len / 4; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_premul__src_over; - } - return NULL; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__bgra_premul__src_over; - } - return NULL; + while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__copy_4_4; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__bgra_premul__src_over; - } - return NULL; + s += 1 * 1; + d += 1 * 4; + n -= 1; + } - case WUFFS_BASE__PIXEL_FORMAT__RGB: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__rgba_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__rgba_premul__src_over; - } - return NULL; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_premul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - if (wuffs_base__cpu_arch__have_x86_sse42()) { - return wuffs_base__pixel_swizzler__swap_rgbx_bgrx__x86_sse42; - } -#endif - return wuffs_base__pixel_swizzler__swap_rgbx_bgrx; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__rgba_premul__src_over; - } - return NULL; - } - return NULL; -} + // TODO: unroll. -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__bgrx(wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - return wuffs_base__pixel_swizzler__bgr_565__bgrx; + while (n >= 1) { + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); - case WUFFS_BASE__PIXEL_FORMAT__BGR: - return wuffs_base__pixel_swizzler__xxx__xxxx; + s += 1 * 4; + d += 1 * 4; + n -= 1; + } - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - return wuffs_base__pixel_swizzler__bgrw__bgrx; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - return wuffs_base__pixel_swizzler__bgrw_4x16le__bgrx; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - return wuffs_base__pixel_swizzler__copy_4_4; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__RGB: - return wuffs_base__pixel_swizzler__bgr__rgbx; + while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - return wuffs_base__pixel_swizzler__bgrw__rgbx; + s += 1 * 4; + d += 1 * 4; + n -= 1; } - return NULL; -} -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__rgb(wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - return wuffs_base__pixel_swizzler__bgr_565__rgb; - - case WUFFS_BASE__PIXEL_FORMAT__BGR: - return wuffs_base__pixel_swizzler__swap_rgb_bgr; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - if (wuffs_base__cpu_arch__have_x86_sse42()) { - return wuffs_base__pixel_swizzler__bgrw__rgb__x86_sse42; - } -#endif - return wuffs_base__pixel_swizzler__bgrw__rgb; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - return wuffs_base__pixel_swizzler__bgrw_4x16le__rgb; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__RGB: - return wuffs_base__pixel_swizzler__copy_3_3; + while (n >= 1) { + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + s0))); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - return wuffs_base__pixel_swizzler__bgrw__bgr; + s += 1 * 8; + d += 1 * 4; + n -= 1; } - return NULL; -} - -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__rgba_nonpremul( - wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr_565__rgba_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr_565__rgba_nonpremul__src_over; - } - return NULL; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__rgba_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__rgba_nonpremul__src_over; - } - return NULL; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - if (wuffs_base__cpu_arch__have_x86_sse42()) { - return wuffs_base__pixel_swizzler__swap_rgbx_bgrx__x86_sse42; - } -#endif - return wuffs_base__pixel_swizzler__swap_rgbx_bgrx; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_nonpremul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__rgba_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__rgba_nonpremul__src_over; - } - return NULL; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__rgba_nonpremul__src_over; - } - return NULL; + while (n >= 1) { + uint64_t d0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); + uint64_t s0 = wuffs_private_impl__swap_u64_argb_abgr( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u64__as__color_u32( + wuffs_private_impl__composite_premul_nonpremul_u64_axxx(d0, s0))); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - // TODO. - break; + s += 1 * 8; + d += 1 * 4; + n -= 1; + } - case WUFFS_BASE__PIXEL_FORMAT__RGB: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src_over; - } - return NULL; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__copy_4_4; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__rgba_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src_over; - } - return NULL; + while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_premul_premul_u32_axxx(d0, s0)); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - // TODO. - break; + s += 1 * 4; + d += 1 * 4; + n -= 1; } - return NULL; + + return len; } -static wuffs_base__pixel_swizzler__func // -wuffs_base__pixel_swizzler__prepare__rgba_premul( - wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - switch (dst_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr_565__rgba_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr_565__rgba_premul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__ya_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__rgba_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__rgba_premul__src_over; - } - return NULL; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__rgba_premul__src_over; - } - return NULL; + while (n >= 1) { + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__rgba_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul_4x16le__rgba_premul__src_over; - } - return NULL; + s += 1 * 2; + d += 1 * 4; + n -= 1; + } - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - if (wuffs_base__cpu_arch__have_x86_sse42()) { - return wuffs_base__pixel_swizzler__swap_rgbx_bgrx__x86_sse42; - } -#endif - return wuffs_base__pixel_swizzler__swap_rgbx_bgrx; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__rgba_premul__src_over; - } - return NULL; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__RGB: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgr__bgra_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgr__bgra_premul__src_over; - } - return NULL; +static uint64_t // +wuffs_private_impl__swizzle_bgra_premul__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_premul__src; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_premul__src_over; - } - return NULL; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - return wuffs_base__pixel_swizzler__copy_4_4; - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - return wuffs_base__pixel_swizzler__bgra_premul__bgra_premul__src_over; - } - return NULL; + while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); + + s += 1 * 2; + d += 1 * 4; + n -= 1; } - return NULL; + + return len; } // -------- -WUFFS_BASE__MAYBE_STATIC wuffs_base__status // -wuffs_base__pixel_swizzler__prepare(wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_format dst_pixfmt, - wuffs_base__slice_u8 dst_palette, - wuffs_base__pixel_format src_pixfmt, - wuffs_base__slice_u8 src_palette, - wuffs_base__pixel_blend blend) { - if (!p) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - p->private_impl.func = NULL; - p->private_impl.transparent_black_func = NULL; - p->private_impl.dst_pixfmt_bytes_per_pixel = 0; - p->private_impl.src_pixfmt_bytes_per_pixel = 0; +static uint64_t // +wuffs_private_impl__swizzle_bgrw__bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - wuffs_base__pixel_swizzler__func func = NULL; - wuffs_base__pixel_swizzler__transparent_black_func transparent_black_func = - NULL; + // TODO: unroll. - uint32_t dst_pixfmt_bits_per_pixel = - wuffs_base__pixel_format__bits_per_pixel(&dst_pixfmt); - if ((dst_pixfmt_bits_per_pixel == 0) || - ((dst_pixfmt_bits_per_pixel & 7) != 0)) { - return wuffs_base__make_status( - wuffs_base__error__unsupported_pixel_swizzler_option); - } + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + 0xFF000000 | wuffs_base__peek_u24le__no_bounds_check(s + (0 * 3))); - uint32_t src_pixfmt_bits_per_pixel = - wuffs_base__pixel_format__bits_per_pixel(&src_pixfmt); - if ((src_pixfmt_bits_per_pixel == 0) || - ((src_pixfmt_bits_per_pixel & 7) != 0)) { - return wuffs_base__make_status( - wuffs_base__error__unsupported_pixel_swizzler_option); + s += 1 * 3; + d += 1 * 4; + n -= 1; } - // TODO: support many more formats. - - switch (blend) { - case WUFFS_BASE__PIXEL_BLEND__SRC: - transparent_black_func = - wuffs_base__pixel_swizzler__transparent_black_src; - break; + return len; +} - case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: - transparent_black_func = - wuffs_base__pixel_swizzler__transparent_black_src_over; - break; - } +static uint64_t // +wuffs_private_impl__swizzle_bgrw__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - switch (src_pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__Y: - func = wuffs_base__pixel_swizzler__prepare__y(p, dst_pixfmt, dst_palette, - src_palette, blend); - break; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: - func = wuffs_base__pixel_swizzler__prepare__y_16be( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2)))); - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: - func = wuffs_base__pixel_swizzler__prepare__indexed__bgra_nonpremul( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + s += 1 * 2; + d += 1 * 4; + n -= 1; + } - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: - func = wuffs_base__pixel_swizzler__prepare__indexed__bgra_binary( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - func = wuffs_base__pixel_swizzler__prepare__bgr_565( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; +static uint64_t // +wuffs_private_impl__swizzle_bgrw__bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - func = wuffs_base__pixel_swizzler__prepare__bgr( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - func = wuffs_base__pixel_swizzler__prepare__bgra_nonpremul( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + 0xFF000000 | wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - func = wuffs_base__pixel_swizzler__prepare__bgra_nonpremul_4x16le( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + s += 1 * 4; + d += 1 * 4; + n -= 1; + } - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - func = wuffs_base__pixel_swizzler__prepare__bgra_premul( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + return len; +} - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - func = wuffs_base__pixel_swizzler__prepare__bgrx( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_bgrw__bgr__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__RGB: - func = wuffs_base__pixel_swizzler__prepare__rgb( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + __m128i shuffle = _mm_set_epi8(+0x00, +0x0B, +0x0A, +0x09, // + +0x00, +0x08, +0x07, +0x06, // + +0x00, +0x05, +0x04, +0x03, // + +0x00, +0x02, +0x01, +0x00); + __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - func = wuffs_base__pixel_swizzler__prepare__rgba_nonpremul( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + while (n >= 6) { + __m128i x; + x = _mm_lddqu_si128((const __m128i*)(const void*)s); + x = _mm_shuffle_epi8(x, shuffle); + x = _mm_or_si128(x, or_ff); + _mm_storeu_si128((__m128i*)(void*)d, x); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - func = wuffs_base__pixel_swizzler__prepare__rgba_premul( - p, dst_pixfmt, dst_palette, src_palette, blend); - break; + s += 4 * 3; + d += 4 * 4; + n -= 4; } - p->private_impl.func = func; - p->private_impl.transparent_black_func = transparent_black_func; - p->private_impl.dst_pixfmt_bytes_per_pixel = dst_pixfmt_bits_per_pixel / 8; - p->private_impl.src_pixfmt_bytes_per_pixel = src_pixfmt_bits_per_pixel / 8; - return wuffs_base__make_status( - func ? NULL : wuffs_base__error__unsupported_pixel_swizzler_option); -} + while (n >= 1) { + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b0; + d[1] = b1; + d[2] = b2; + d[3] = 0xFF; -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( - const wuffs_base__pixel_swizzler* p, - uint32_t up_to_num_pixels, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - const uint8_t** ptr_iop_r, - const uint8_t* io2_r) { - if (p && p->private_impl.func) { - const uint8_t* iop_r = *ptr_iop_r; - uint64_t src_len = wuffs_base__u64__min( - ((uint64_t)up_to_num_pixels) * - ((uint64_t)p->private_impl.src_pixfmt_bytes_per_pixel), - ((uint64_t)(io2_r - iop_r))); - uint64_t n = - (*p->private_impl.func)(dst.ptr, dst.len, dst_palette.ptr, - dst_palette.len, iop_r, (size_t)src_len); - *ptr_iop_r += n * p->private_impl.src_pixfmt_bytes_per_pixel; - return n; + s += 1 * 3; + d += 1 * 4; + n -= 1; } - return 0; -} -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( - const wuffs_base__pixel_swizzler* p, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - const uint8_t** ptr_iop_r, - const uint8_t* io2_r) { - if (p && p->private_impl.func) { - const uint8_t* iop_r = *ptr_iop_r; - uint64_t src_len = ((uint64_t)(io2_r - iop_r)); - uint64_t n = - (*p->private_impl.func)(dst.ptr, dst.len, dst_palette.ptr, - dst_palette.len, iop_r, (size_t)src_len); - *ptr_iop_r += n * p->private_impl.src_pixfmt_bytes_per_pixel; - return n; - } - return 0; + return len; } -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice( - const wuffs_base__pixel_swizzler* p, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - wuffs_base__slice_u8 src) { - if (p && p->private_impl.func) { - return (*p->private_impl.func)(dst.ptr, dst.len, dst_palette.ptr, - dst_palette.len, src.ptr, src.len); - } - return 0; -} +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black( - const wuffs_base__pixel_swizzler* p, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - uint64_t num_pixels) { - if (p && p->private_impl.transparent_black_func) { - return (*p->private_impl.transparent_black_func)( - dst.ptr, dst.len, dst_palette.ptr, dst_palette.len, num_pixels, - p->private_impl.dst_pixfmt_bytes_per_pixel); + __m128i shuffle = _mm_set_epi8(+0x00, +0x09, +0x0A, +0x0B, // + +0x00, +0x06, +0x07, +0x08, // + +0x00, +0x03, +0x04, +0x05, // + +0x00, +0x00, +0x01, +0x02); + __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00); + + while (n >= 6) { + __m128i x; + x = _mm_lddqu_si128((const __m128i*)(const void*)s); + x = _mm_shuffle_epi8(x, shuffle); + x = _mm_or_si128(x, or_ff); + _mm_storeu_si128((__m128i*)(void*)d, x); + + s += 4 * 3; + d += 4 * 4; + n -= 4; } - return 0; -} -// -------- + while (n >= 1) { + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b2; + d[1] = b1; + d[2] = b0; + d[3] = 0xFF; -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_bgrx_x86_avx2( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2); + s += 1 * 3; + d += 1 * 4; + n -= 1; + } -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_rgbx_x86_avx2( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2); + return len; +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -#if defined(__GNUC__) && !defined(__clang__) -// No-op. -#else -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2v2_triangle_x86_avx2( - uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor, - size_t src_len, - uint32_t h1v2_bias_ignored, - bool first_column, - bool last_column); -#endif -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +static uint64_t // +wuffs_private_impl__swizzle_bgrw__rgb(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -// -------- + while (n >= 1) { + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b2; + d[1] = b1; + d[2] = b0; + d[3] = 0xFF; -static inline uint32_t // -wuffs_base__u32__max_of_4(uint32_t a, uint32_t b, uint32_t c, uint32_t d) { - return wuffs_base__u32__max( // - wuffs_base__u32__max(a, b), // - wuffs_base__u32__max(c, d)); -} + s += 1 * 3; + d += 1 * 4; + n -= 1; + } -static inline uint32_t // -wuffs_base__u32__min_of_5(uint32_t a, - uint32_t b, - uint32_t c, - uint32_t d, - uint32_t e) { - return wuffs_base__u32__min( // - wuffs_base__u32__min( // - wuffs_base__u32__min(a, b), // - wuffs_base__u32__min(c, d)), // - e); + return len; } -// -------- +static uint64_t // +wuffs_private_impl__swizzle_bgrw__rgbx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -typedef void (*wuffs_base__pixel_swizzler__swizzle_ycc__convert_4_func)( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2, - const uint8_t* up3); + // TODO: unroll. -static void // -wuffs_base__pixel_swizzler__swizzle_cmyk__convert_4_general( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2, - const uint8_t* up3) { - for (; x < x_end; x++) { - // It's called CMYK but, but for Adobe CMYK JPEG images in practice, it's - // RGBW: 0xFFu means no ink instead of full ink. Note that a double - // inversion is a no-op, so inversions might be implicit in the code below. - uint32_t r = ((uint32_t)(*up0++)); - uint32_t g = ((uint32_t)(*up1++)); - uint32_t b = ((uint32_t)(*up2++)); - uint32_t w = ((uint32_t)(*up3++)); - r = ((r * w) + 0x7Fu) / 0xFFu; - g = ((g * w) + 0x7Fu) / 0xFFu; - b = ((b * w) + 0x7Fu) / 0xFFu; - wuffs_base__pixel_buffer__set_color_u32_at( - dst, x, y, 0xFF000000u | (r << 16u) | (g << 8u) | (b << 0u)); - } -} + while (n >= 1) { + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b2; + d[1] = b1; + d[2] = b0; + d[3] = 0xFF; -static void // -wuffs_base__pixel_swizzler__swizzle_ycck__convert_4_general( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2, - const uint8_t* up3) { - for (; x < x_end; x++) { - // We invert once again: 0xFFu means no ink instead of full ink. - uint32_t color = // - wuffs_base__color_ycc__as__color_u32( // - *up0++, *up1++, *up2++); - uint32_t r = 0xFFu - (0xFFu & (color >> 16u)); - uint32_t g = 0xFFu - (0xFFu & (color >> 8u)); - uint32_t b = 0xFFu - (0xFFu & (color >> 0u)); - uint32_t w = ((uint32_t)(*up3++)); - r = ((r * w) + 0x7Fu) / 0xFFu; - g = ((g * w) + 0x7Fu) / 0xFFu; - b = ((b * w) + 0x7Fu) / 0xFFu; - wuffs_base__pixel_buffer__set_color_u32_at( - dst, x, y, 0xFF000000u | (r << 16u) | (g << 8u) | (b << 0u)); + s += 1 * 4; + d += 1 * 4; + n -= 1; } + + return len; } // -------- -typedef void (*wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_func)( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2); +static uint64_t // +wuffs_private_impl__swizzle_bgrw_4x16le__bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len3 = src_len / 3; + size_t len = (dst_len8 < src_len3) ? dst_len8 : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -static void // -wuffs_base__pixel_swizzler__swizzle_rgb__convert_3_general( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2) { - for (; x < x_end; x++) { - uint32_t color = 0xFF000000u | // - (((uint32_t)(*up0++)) << 16u) | // - (((uint32_t)(*up1++)) << 8u) | // - (((uint32_t)(*up2++)) << 0u); - wuffs_base__pixel_buffer__set_color_u32_at(dst, x, y, color); - } -} + while (n >= 1) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s0; + d[1] = s0; + d[2] = s1; + d[3] = s1; + d[4] = s2; + d[5] = s2; + d[6] = 0xFF; + d[7] = 0xFF; -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_general( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2) { - for (; x < x_end; x++) { - uint32_t color = // - wuffs_base__color_ycc__as__color_u32( // - *up0++, *up1++, *up2++); - wuffs_base__pixel_buffer__set_color_u32_at(dst, x, y, color); + s += 1 * 3; + d += 1 * 8; + n -= 1; } -} - -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_bgrx( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2) { - size_t dst_stride = dst->private_impl.planes[0].stride; - uint8_t* dst_iter = dst->private_impl.planes[0].ptr + - (dst_stride * ((size_t)y)) + (4u * ((size_t)x)); - for (; x < x_end; x++) { - uint32_t color = // - wuffs_base__color_ycc__as__color_u32( // - *up0++, *up1++, *up2++); - wuffs_base__poke_u32le__no_bounds_check(dst_iter, color); - dst_iter += 4u; - } + return len; } -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_rgbx( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2) { - size_t dst_stride = dst->private_impl.planes[0].stride; - uint8_t* dst_iter = dst->private_impl.planes[0].ptr + - (dst_stride * ((size_t)y)) + (4u * ((size_t)x)); +static uint64_t // +wuffs_private_impl__swizzle_bgrw_4x16le__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len2 = src_len / 2; + size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - for (; x < x_end; x++) { - uint32_t color = // - wuffs_base__color_ycc__as__color_u32_abgr( // - *up0++, *up1++, *up2++); - wuffs_base__poke_u32le__no_bounds_check(dst_iter, color); - dst_iter += 4u; + while (n >= 1) { + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_base__color_u32__as__color_u64( + wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); + + s += 1 * 2; + d += 1 * 8; + n -= 1; } + + return len; } -// -------- +static uint64_t // +wuffs_private_impl__swizzle_bgrw_4x16le__bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -// wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upsamples to a -// destination slice at least 480 (YCCK) or 672 (YCC) bytes long and whose -// src_len (multiplied by 1, 2, 3 or 4) is positive but no more than that. This -// 480 or 672 length is just under 1/4 or 1/3 of the scratch_buffer_2k slice -// length. Both (480 * 4) = 1920 and (672 * 3) = 2016 are less than 2048. -// -// 480 and 672 are nice round numbers because a JPEG MCU is 1, 2, 3 or 4 blocks -// wide and each block is 8 pixels wide. We have: -// 480 = 1 * 8 * 60, 672 = 1 * 8 * 84 -// 480 = 2 * 8 * 30, 672 = 2 * 8 * 42 -// 480 = 3 * 8 * 20, 672 = 3 * 8 * 28 -// 480 = 4 * 8 * 15, 672 = 4 * 8 * 21 -// -// Box filters are equivalent to nearest neighbor upsampling. These ignore the -// src_ptr_minor, h1v2_bias, first_column and last_column arguments. -// -// Triangle filters use a 3:1 ratio (in 1 dimension), or 9:3:3:1 (in 2 -// dimensions), which is higher quality (less blocky) but also higher -// computational effort. -// -// In theory, we could use triangle filters for any (inv_h, inv_v) combination. -// In practice, matching libjpeg-turbo, we only implement it for the common -// chroma subsampling ratios (YCC420, YCC422 or YCC440), corresponding to an -// (inv_h, inv_v) pair of (2, 2), (2, 1) or (1, 2). -typedef const uint8_t* ( - *wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func)( - uint8_t* dst_ptr, - const uint8_t* src_ptr_major, // Nearest row. - const uint8_t* src_ptr_minor, // Adjacent row, alternating above or below. - size_t src_len, - uint32_t h1v2_bias, - bool first_column, - bool last_column); + while (n >= 1) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s0; + d[1] = s0; + d[2] = s1; + d[3] = s1; + d[4] = s2; + d[5] = s2; + d[6] = 0xFF; + d[7] = 0xFF; -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h1vn_box( - uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor_ignored, - size_t src_len, - uint32_t h1v2_bias_ignored, - bool first_column_ignored, - bool last_column_ignored) { - return src_ptr_major; + s += 1 * 4; + d += 1 * 8; + n -= 1; + } + + return len; } -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2vn_box( - uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor_ignored, - size_t src_len, - uint32_t h1v2_bias_ignored, - bool first_column_ignored, - bool last_column_ignored) { - uint8_t* dp = dst_ptr; - const uint8_t* sp = src_ptr_major; - while (src_len--) { - uint8_t sv = *sp++; - *dp++ = sv; - *dp++ = sv; +static uint64_t // +wuffs_private_impl__swizzle_bgrw_4x16le__rgb(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len3 = src_len / 3; + size_t len = (dst_len8 < src_len3) ? dst_len8 : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + while (n >= 1) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s2; + d[1] = s2; + d[2] = s1; + d[3] = s1; + d[4] = s0; + d[5] = s0; + d[6] = 0xFF; + d[7] = 0xFF; + + s += 1 * 3; + d += 1 * 8; + n -= 1; } - return dst_ptr; + + return len; } -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h3vn_box( - uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor_ignored, - size_t src_len, - uint32_t h1v2_bias_ignored, - bool first_column_ignored, - bool last_column_ignored) { - uint8_t* dp = dst_ptr; - const uint8_t* sp = src_ptr_major; - while (src_len--) { - uint8_t sv = *sp++; - *dp++ = sv; - *dp++ = sv; - *dp++ = sv; +// -------- + +static uint64_t // +wuffs_private_impl__swizzle_rgb__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + + while (n >= 1) { + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); + + s += 1 * 2; + d += 1 * 3; + n -= 1; } - return dst_ptr; + + return len; } -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h4vn_box( +// -------- + +static uint64_t // +wuffs_private_impl__swizzle_rgba_nonpremul__bgra_nonpremul_4x16le__src( uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor_ignored, - size_t src_len, - uint32_t h1v2_bias_ignored, - bool first_column_ignored, - bool last_column_ignored) { - uint8_t* dp = dst_ptr; - const uint8_t* sp = src_ptr_major; - while (src_len--) { - uint8_t sv = *sp++; - *dp++ = sv; - *dp++ = sv; - *dp++ = sv; - *dp++ = sv; + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + + size_t n = len; + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__color_u64__as__color_u32__swap_u32_argb_abgr( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); + + s += 1 * 8; + d += 1 * 4; + n -= 1; } - return dst_ptr; + return len; } -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h1v2_triangle( +static uint64_t // +wuffs_private_impl__swizzle_rgba_nonpremul__bgra_nonpremul_4x16le__src_over( uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor, - size_t src_len, - uint32_t h1v2_bias, - bool first_column, - bool last_column) { - uint8_t* dp = dst_ptr; - const uint8_t* sp_major = src_ptr_major; - const uint8_t* sp_minor = src_ptr_minor; - while (src_len--) { - *dp++ = (uint8_t)(((3u * ((uint32_t)(*sp_major++))) + // - (1u * ((uint32_t)(*sp_minor++))) + // - h1v2_bias) >> - 2u); + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + while (n >= 1) { + uint64_t d0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); + uint64_t s0 = wuffs_private_impl__swap_u64_argb_abgr( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u64__as__color_u32( + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, + s0))); + + s += 1 * 8; + d += 1 * 4; + n -= 1; } - return dst_ptr; + + return len; } -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2v1_triangle( - uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor, - size_t src_len, - uint32_t h1v2_bias_ignored, - bool first_column, - bool last_column) { - uint8_t* dp = dst_ptr; - const uint8_t* sp = src_ptr_major; +// -------- - if (first_column) { - src_len--; - if ((src_len <= 0u) && last_column) { - uint8_t sv = *sp++; - *dp++ = sv; - *dp++ = sv; - return dst_ptr; - } - uint32_t svp1 = sp[+1]; - uint8_t sv = *sp++; - *dp++ = sv; - *dp++ = (uint8_t)(((3u * (uint32_t)sv) + svp1 + 2u) >> 2u); - if (src_len <= 0u) { - return dst_ptr; - } - } +static uint64_t // +wuffs_private_impl__swizzle_rgbw__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - if (last_column) { - src_len--; - } + // TODO: unroll. - for (; src_len > 0u; src_len--) { - uint32_t svm1 = sp[-1]; - uint32_t svp1 = sp[+1]; - uint32_t sv3 = 3u * (uint32_t)(*sp++); - *dp++ = (uint8_t)((sv3 + svm1 + 1u) >> 2u); - *dp++ = (uint8_t)((sv3 + svp1 + 2u) >> 2u); - } + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); - if (last_column) { - uint32_t svm1 = sp[-1]; - uint8_t sv = *sp++; - *dp++ = (uint8_t)(((3u * (uint32_t)sv) + svm1 + 1u) >> 2u); - *dp++ = sv; + s += 1 * 2; + d += 1 * 4; + n -= 1; } - return dst_ptr; + return len; } -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2v2_triangle( - uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor, - size_t src_len, - uint32_t h1v2_bias_ignored, - bool first_column, - bool last_column) { - uint8_t* dp = dst_ptr; - const uint8_t* sp_major = src_ptr_major; - const uint8_t* sp_minor = src_ptr_minor; +// -------- - if (first_column) { - src_len--; - if ((src_len <= 0u) && last_column) { - uint32_t sv = (12u * ((uint32_t)(*sp_major++))) + // - (4u * ((uint32_t)(*sp_minor++))); - *dp++ = (uint8_t)((sv + 8u) >> 4u); - *dp++ = (uint8_t)((sv + 7u) >> 4u); - return dst_ptr; - } +static uint64_t // +wuffs_private_impl__swizzle_xxx__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len3 = dst_len / 3; + size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - uint32_t sv_major_m1 = sp_major[-0]; // Clamp offset to zero. - uint32_t sv_minor_m1 = sp_minor[-0]; // Clamp offset to zero. - uint32_t sv_major_p1 = sp_major[+1]; - uint32_t sv_minor_p1 = sp_minor[+1]; + const size_t loop_unroll_count = 4; - uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // - (3u * ((uint32_t)(*sp_minor++))); - *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); - *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); - if (src_len <= 0u) { - return dst_ptr; - } - } + // The comparison in the while condition is ">", not ">=", because with + // ">=", the last 4-byte store could write past the end of the dst slice. + // + // Each 4-byte store writes one too many bytes, but a subsequent store + // will overwrite that with the correct byte. There is always another + // store, whether a 4-byte store in this loop or a 1-byte store in the + // next loop. + while (n > loop_unroll_count) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 3), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (1 * 3), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[1] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (2 * 3), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[2] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (3 * 3), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[3] * 4))); - if (last_column) { - src_len--; + s += loop_unroll_count * 1; + d += loop_unroll_count * 3; + n -= loop_unroll_count; } - for (; src_len > 0u; src_len--) { - uint32_t sv_major_m1 = sp_major[-1]; - uint32_t sv_minor_m1 = sp_minor[-1]; - uint32_t sv_major_p1 = sp_major[+1]; - uint32_t sv_minor_p1 = sp_minor[+1]; + while (n >= 1) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // - (3u * ((uint32_t)(*sp_minor++))); - *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); - *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); + s += 1 * 1; + d += 1 * 3; + n -= 1; } - if (last_column) { - uint32_t sv_major_m1 = sp_major[-1]; - uint32_t sv_minor_m1 = sp_minor[-1]; - uint32_t sv_major_p1 = sp_major[+0]; // Clamp offset to zero. - uint32_t sv_minor_p1 = sp_minor[+0]; // Clamp offset to zero. + return len; +} - uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // - (3u * ((uint32_t)(*sp_minor++))); - *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); - *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); +static uint64_t // +wuffs_private_impl__swizzle_xxx__index_bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; } + size_t dst_len3 = dst_len / 3; + size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - return dst_ptr; -} + // TODO: unroll. -// wuffs_base__pixel_swizzler__swizzle_ycc__upsample_funcs is indexed by inv_h -// and then inv_v. -static const wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_funcs[4][4] = { - { - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h1vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h1vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h1vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h1vn_box, - }, - { - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2vn_box, - }, - { - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h3vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h3vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h3vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h3vn_box, - }, - { - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h4vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h4vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h4vn_box, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h4vn_box, - }, -}; + while (n >= 1) { + uint32_t d0 = + wuffs_base__peek_u24le__no_bounds_check(d + (0 * 3)) | 0xFF000000; + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); -static inline uint32_t // -wuffs_base__pixel_swizzler__has_triangle_upsampler(uint32_t inv_h, - uint32_t inv_v) { - if (inv_h == 1u) { - return inv_v == 2u; - } else if (inv_h == 2u) { - return (inv_v == 1u) || (inv_v == 2u); + s += 1 * 1; + d += 1 * 3; + n -= 1; } - return false; + + return len; } -// -------- +static uint64_t // +wuffs_private_impl__swizzle_xxx__index_binary_alpha__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len3 = dst_len / 3; + size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -// All of the wuffs_base__pixel_swizzler__swizzle_ycc__etc functions have -// preconditions. See all of the checks made in -// wuffs_base__pixel_swizzler__swizzle_ycck before calling these functions. For -// example, (width > 0) is a precondition, but there are many more. + const size_t loop_unroll_count = 4; -static void // -wuffs_base__pixel_swizzler__swizzle_ycck__general__triangle_filter_edge_row( - wuffs_base__pixel_buffer* dst, - uint32_t width, - uint32_t y, - const uint8_t* src_ptr0, - const uint8_t* src_ptr1, - const uint8_t* src_ptr2, - const uint8_t* src_ptr3, - uint32_t stride0, - uint32_t stride1, - uint32_t stride2, - uint32_t stride3, - uint32_t inv_h0, - uint32_t inv_h1, - uint32_t inv_h2, - uint32_t inv_h3, - uint32_t inv_v0, - uint32_t inv_v1, - uint32_t inv_v2, - uint32_t inv_v3, - uint32_t half_width_for_2to1, - uint32_t h1v2_bias, - uint8_t* scratch_buffer_2k_ptr, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc0, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc1, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc2, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc3, - wuffs_base__pixel_swizzler__swizzle_ycc__convert_4_func conv4func) { - const uint8_t* src0 = src_ptr0 + ((y / inv_v0) * (size_t)stride0); - const uint8_t* src1 = src_ptr1 + ((y / inv_v1) * (size_t)stride1); - const uint8_t* src2 = src_ptr2 + ((y / inv_v2) * (size_t)stride2); - const uint8_t* src3 = src_ptr3 + ((y / inv_v3) * (size_t)stride3); - uint32_t total_src_len0 = 0u; - uint32_t total_src_len1 = 0u; - uint32_t total_src_len2 = 0u; - uint32_t total_src_len3 = 0u; - - uint32_t x = 0u; - while (x < width) { - bool first_column = x == 0u; - uint32_t end = x + 480u; - if (end > width) { - end = width; + while (n >= loop_unroll_count) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + } + uint32_t s1 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[1] * 4)); + if (s1) { + wuffs_base__poke_u24le__no_bounds_check(d + (1 * 3), s1); + } + uint32_t s2 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[2] * 4)); + if (s2) { + wuffs_base__poke_u24le__no_bounds_check(d + (2 * 3), s2); + } + uint32_t s3 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[3] * 4)); + if (s3) { + wuffs_base__poke_u24le__no_bounds_check(d + (3 * 3), s3); } - uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; - uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; - uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; - uint32_t src_len3 = ((end - x) + inv_h3 - 1u) / inv_h3; - total_src_len0 += src_len0; - total_src_len1 += src_len1; - total_src_len2 += src_len2; - total_src_len3 += src_len3; - - const uint8_t* src_ptr_x0 = src0 + (x / inv_h0); - const uint8_t* up0 = (*upfunc0)( // - scratch_buffer_2k_ptr + (0u * 480u), // - src_ptr_x0, // - src_ptr_x0, // - src_len0, // - h1v2_bias, // - first_column, // - (total_src_len0 >= half_width_for_2to1)); - - const uint8_t* src_ptr_x1 = src1 + (x / inv_h1); - const uint8_t* up1 = (*upfunc1)( // - scratch_buffer_2k_ptr + (1u * 480u), // - src_ptr_x1, // - src_ptr_x1, // - src_len1, // - h1v2_bias, // - first_column, // - (total_src_len1 >= half_width_for_2to1)); - - const uint8_t* src_ptr_x2 = src2 + (x / inv_h2); - const uint8_t* up2 = (*upfunc2)( // - scratch_buffer_2k_ptr + (2u * 480u), // - src_ptr_x2, // - src_ptr_x2, // - src_len2, // - h1v2_bias, // - first_column, // - (total_src_len2 >= half_width_for_2to1)); + s += loop_unroll_count * 1; + d += loop_unroll_count * 3; + n -= loop_unroll_count; + } - const uint8_t* src_ptr_x3 = src3 + (x / inv_h3); - const uint8_t* up3 = (*upfunc3)( // - scratch_buffer_2k_ptr + (3u * 480u), // - src_ptr_x3, // - src_ptr_x3, // - src_len3, // - h1v2_bias, // - first_column, // - (total_src_len3 >= half_width_for_2to1)); + while (n >= 1) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + } - (*conv4func)(dst, x, end, y, up0, up1, up2, up3); - x = end; + s += 1 * 1; + d += 1 * 3; + n -= 1; } -} - -static void // -wuffs_base__pixel_swizzler__swizzle_ycck__general__triangle_filter( - wuffs_base__pixel_buffer* dst, - uint32_t width, - uint32_t height, - const uint8_t* src_ptr0, - const uint8_t* src_ptr1, - const uint8_t* src_ptr2, - const uint8_t* src_ptr3, - uint32_t stride0, - uint32_t stride1, - uint32_t stride2, - uint32_t stride3, - uint32_t inv_h0, - uint32_t inv_h1, - uint32_t inv_h2, - uint32_t inv_h3, - uint32_t inv_v0, - uint32_t inv_v1, - uint32_t inv_v2, - uint32_t inv_v3, - uint32_t half_width_for_2to1, - uint32_t half_height_for_2to1, - uint8_t* scratch_buffer_2k_ptr, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func (*upfuncs)[4][4], - wuffs_base__pixel_swizzler__swizzle_ycc__convert_4_func conv4func) { - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc0 = - (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc1 = - (*upfuncs)[(inv_h1 - 1u) & 3u][(inv_v1 - 1u) & 3u]; - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc2 = - (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc3 = - (*upfuncs)[(inv_h3 - 1u) & 3u][(inv_v3 - 1u) & 3u]; - // First row. - uint32_t h1v2_bias = 1u; - wuffs_base__pixel_swizzler__swizzle_ycck__general__triangle_filter_edge_row( - dst, width, 0u, // - src_ptr0, src_ptr1, src_ptr2, src_ptr3, // - stride0, stride1, stride2, stride3, // - inv_h0, inv_h1, inv_h2, inv_h3, // - inv_v0, inv_v1, inv_v2, inv_v3, // - half_width_for_2to1, // - h1v2_bias, // - scratch_buffer_2k_ptr, // - upfunc0, upfunc1, upfunc2, upfunc3, conv4func); - h1v2_bias = 2u; + return len; +} - // Middle rows. - bool last_row = height == 2u * half_height_for_2to1; - uint32_t y_max_excl = last_row ? (height - 1u) : height; - uint32_t y; - for (y = 1u; y < y_max_excl; y++) { - const uint8_t* src0_major = src_ptr0 + ((y / inv_v0) * (size_t)stride0); - const uint8_t* src0_minor = - (inv_v0 != 2u) - ? src0_major - : ((y & 1u) ? (src0_major + stride0) : (src0_major - stride0)); - const uint8_t* src1_major = src_ptr1 + ((y / inv_v1) * (size_t)stride1); - const uint8_t* src1_minor = - (inv_v1 != 2u) - ? src1_major - : ((y & 1u) ? (src1_major + stride1) : (src1_major - stride1)); - const uint8_t* src2_major = src_ptr2 + ((y / inv_v2) * (size_t)stride2); - const uint8_t* src2_minor = - (inv_v2 != 2u) - ? src2_major - : ((y & 1u) ? (src2_major + stride2) : (src2_major - stride2)); - const uint8_t* src3_major = src_ptr3 + ((y / inv_v3) * (size_t)stride3); - const uint8_t* src3_minor = - (inv_v3 != 2u) - ? src3_major - : ((y & 1u) ? (src3_major + stride3) : (src3_major - stride3)); - uint32_t total_src_len0 = 0u; - uint32_t total_src_len1 = 0u; - uint32_t total_src_len2 = 0u; - uint32_t total_src_len3 = 0u; +static uint64_t // +wuffs_private_impl__swizzle_xxx__xxxx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - uint32_t x = 0u; - while (x < width) { - bool first_column = x == 0u; - uint32_t end = x + 480u; - if (end > width) { - end = width; - } + // TODO: unroll. - uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; - uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; - uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; - uint32_t src_len3 = ((end - x) + inv_h3 - 1u) / inv_h3; - total_src_len0 += src_len0; - total_src_len1 += src_len1; - total_src_len2 += src_len2; - total_src_len3 += src_len3; + while (n >= 1) { + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - const uint8_t* up0 = (*upfunc0)( // - scratch_buffer_2k_ptr + (0u * 480u), // - src0_major + (x / inv_h0), // - src0_minor + (x / inv_h0), // - src_len0, // - h1v2_bias, // - first_column, // - (total_src_len0 >= half_width_for_2to1)); + s += 1 * 4; + d += 1 * 3; + n -= 1; + } - const uint8_t* up1 = (*upfunc1)( // - scratch_buffer_2k_ptr + (1u * 480u), // - src1_major + (x / inv_h1), // - src1_minor + (x / inv_h1), // - src_len1, // - h1v2_bias, // - first_column, // - (total_src_len1 >= half_width_for_2to1)); + return len; +} - const uint8_t* up2 = (*upfunc2)( // - scratch_buffer_2k_ptr + (2u * 480u), // - src2_major + (x / inv_h2), // - src2_minor + (x / inv_h2), // - src_len2, // - h1v2_bias, // - first_column, // - (total_src_len2 >= half_width_for_2to1)); +static uint64_t // +wuffs_private_impl__swizzle_xxx__y(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - const uint8_t* up3 = (*upfunc3)( // - scratch_buffer_2k_ptr + (3u * 480u), // - src3_major + (x / inv_h3), // - src3_minor + (x / inv_h3), // - src_len3, // - h1v2_bias, // - first_column, // - (total_src_len3 >= half_width_for_2to1)); + // TODO: unroll. - (*conv4func)(dst, x, end, y, up0, up1, up2, up3); - x = end; - } + while (n >= 1) { + uint8_t s0 = s[0]; + d[0] = s0; + d[1] = s0; + d[2] = s0; - h1v2_bias ^= 3u; + s += 1 * 1; + d += 1 * 3; + n -= 1; } - // Last row. - if (y_max_excl != height) { - wuffs_base__pixel_swizzler__swizzle_ycck__general__triangle_filter_edge_row( - dst, width, height - 1u, // - src_ptr0, src_ptr1, src_ptr2, src_ptr3, // - stride0, stride1, stride2, stride3, // - inv_h0, inv_h1, inv_h2, inv_h3, // - inv_v0, inv_v1, inv_v2, inv_v3, // - half_width_for_2to1, // - h1v2_bias, // - scratch_buffer_2k_ptr, // - upfunc0, upfunc1, upfunc2, upfunc3, conv4func); - } + return len; } -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__general__triangle_filter_edge_row( - wuffs_base__pixel_buffer* dst, - uint32_t width, - uint32_t y, - const uint8_t* src_ptr0, - const uint8_t* src_ptr1, - const uint8_t* src_ptr2, - uint32_t stride0, - uint32_t stride1, - uint32_t stride2, - uint32_t inv_h0, - uint32_t inv_h1, - uint32_t inv_h2, - uint32_t inv_v0, - uint32_t inv_v1, - uint32_t inv_v2, - uint32_t half_width_for_2to1, - uint32_t h1v2_bias, - uint8_t* scratch_buffer_2k_ptr, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc0, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc1, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc2, - wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_func conv3func) { - const uint8_t* src0 = src_ptr0 + ((y / inv_v0) * (size_t)stride0); - const uint8_t* src1 = src_ptr1 + ((y / inv_v1) * (size_t)stride1); - const uint8_t* src2 = src_ptr2 + ((y / inv_v2) * (size_t)stride2); - uint32_t total_src_len0 = 0u; - uint32_t total_src_len1 = 0u; - uint32_t total_src_len2 = 0u; - - uint32_t x = 0u; - while (x < width) { - bool first_column = x == 0u; - uint32_t end = x + 672u; - if (end > width) { - end = width; - } - - uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; - uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; - uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; - total_src_len0 += src_len0; - total_src_len1 += src_len1; - total_src_len2 += src_len2; - - const uint8_t* src_ptr_x0 = src0 + (x / inv_h0); - const uint8_t* up0 = (*upfunc0)( // - scratch_buffer_2k_ptr + (0u * 672u), // - src_ptr_x0, // - src_ptr_x0, // - src_len0, // - h1v2_bias, // - first_column, // - (total_src_len0 >= half_width_for_2to1)); +static uint64_t // +wuffs_private_impl__swizzle_xxx__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - const uint8_t* src_ptr_x1 = src1 + (x / inv_h1); - const uint8_t* up1 = (*upfunc1)( // - scratch_buffer_2k_ptr + (1u * 672u), // - src_ptr_x1, // - src_ptr_x1, // - src_len1, // - h1v2_bias, // - first_column, // - (total_src_len1 >= half_width_for_2to1)); + // TODO: unroll. - const uint8_t* src_ptr_x2 = src2 + (x / inv_h2); - const uint8_t* up2 = (*upfunc2)( // - scratch_buffer_2k_ptr + (2u * 672u), // - src_ptr_x2, // - src_ptr_x2, // - src_len2, // - h1v2_bias, // - first_column, // - (total_src_len2 >= half_width_for_2to1)); + while (n >= 1) { + uint8_t s0 = s[0]; + d[0] = s0; + d[1] = s0; + d[2] = s0; - (*conv3func)(dst, x, end, y, up0, up1, up2); - x = end; + s += 1 * 2; + d += 1 * 3; + n -= 1; } -} -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__general__triangle_filter( - wuffs_base__pixel_buffer* dst, - uint32_t width, - uint32_t height, - const uint8_t* src_ptr0, - const uint8_t* src_ptr1, - const uint8_t* src_ptr2, - uint32_t stride0, - uint32_t stride1, - uint32_t stride2, - uint32_t inv_h0, - uint32_t inv_h1, - uint32_t inv_h2, - uint32_t inv_v0, - uint32_t inv_v1, - uint32_t inv_v2, - uint32_t half_width_for_2to1, - uint32_t half_height_for_2to1, - uint8_t* scratch_buffer_2k_ptr, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func (*upfuncs)[4][4], - wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_func conv3func) { - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc0 = - (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc1 = - (*upfuncs)[(inv_h1 - 1u) & 3u][(inv_v1 - 1u) & 3u]; - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc2 = - (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; + return len; +} - // First row. - uint32_t h1v2_bias = 1u; - wuffs_base__pixel_swizzler__swizzle_ycc__general__triangle_filter_edge_row( - dst, width, 0u, // - src_ptr0, src_ptr1, src_ptr2, // - stride0, stride1, stride2, // - inv_h0, inv_h1, inv_h2, // - inv_v0, inv_v1, inv_v2, // - half_width_for_2to1, // - h1v2_bias, // - scratch_buffer_2k_ptr, // - upfunc0, upfunc1, upfunc2, conv3func); - h1v2_bias = 2u; +static uint64_t // +wuffs_private_impl__swizzle_xxx__ya_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Middle rows. - bool last_row = height == 2u * half_height_for_2to1; - uint32_t y_max_excl = last_row ? (height - 1u) : height; - uint32_t y; - for (y = 1u; y < y_max_excl; y++) { - const uint8_t* src0_major = src_ptr0 + ((y / inv_v0) * (size_t)stride0); - const uint8_t* src0_minor = - (inv_v0 != 2u) - ? src0_major - : ((y & 1u) ? (src0_major + stride0) : (src0_major - stride0)); - const uint8_t* src1_major = src_ptr1 + ((y / inv_v1) * (size_t)stride1); - const uint8_t* src1_minor = - (inv_v1 != 2u) - ? src1_major - : ((y & 1u) ? (src1_major + stride1) : (src1_major - stride1)); - const uint8_t* src2_major = src_ptr2 + ((y / inv_v2) * (size_t)stride2); - const uint8_t* src2_minor = - (inv_v2 != 2u) - ? src2_major - : ((y & 1u) ? (src2_major + stride2) : (src2_major - stride2)); - uint32_t total_src_len0 = 0u; - uint32_t total_src_len1 = 0u; - uint32_t total_src_len2 = 0u; + // TODO: unroll. - uint32_t x = 0u; - while (x < width) { - bool first_column = x == 0u; - uint32_t end = x + 672u; - if (end > width) { - end = width; - } + while (n >= 1) { + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); - uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; - uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; - uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; - total_src_len0 += src_len0; - total_src_len1 += src_len1; - total_src_len2 += src_len2; + s += 1 * 2; + d += 1 * 3; + n -= 1; + } - const uint8_t* up0 = (*upfunc0)( // - scratch_buffer_2k_ptr + (0u * 672u), // - src0_major + (x / inv_h0), // - src0_minor + (x / inv_h0), // - src_len0, // - h1v2_bias, // - first_column, // - (total_src_len0 >= half_width_for_2to1)); + return len; +} - const uint8_t* up1 = (*upfunc1)( // - scratch_buffer_2k_ptr + (1u * 672u), // - src1_major + (x / inv_h1), // - src1_minor + (x / inv_h1), // - src_len1, // - h1v2_bias, // - first_column, // - (total_src_len1 >= half_width_for_2to1)); +static uint64_t // +wuffs_private_impl__swizzle_xxx__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - const uint8_t* up2 = (*upfunc2)( // - scratch_buffer_2k_ptr + (2u * 672u), // - src2_major + (x / inv_h2), // - src2_minor + (x / inv_h2), // - src_len2, // - h1v2_bias, // - first_column, // - (total_src_len2 >= half_width_for_2to1)); + // TODO: unroll. - (*conv3func)(dst, x, end, y, up0, up1, up2); - x = end; - } + while (n >= 1) { + uint32_t d0 = + wuffs_base__peek_u24le__no_bounds_check(d + (0 * 3)) | 0xFF000000; + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - h1v2_bias ^= 3u; + s += 1 * 2; + d += 1 * 3; + n -= 1; } - // Last row. - if (y_max_excl != height) { - wuffs_base__pixel_swizzler__swizzle_ycc__general__triangle_filter_edge_row( - dst, width, height - 1u, // - src_ptr0, src_ptr1, src_ptr2, // - stride0, stride1, stride2, // - inv_h0, inv_h1, inv_h2, // - inv_v0, inv_v1, inv_v2, // - half_width_for_2to1, // - h1v2_bias, // - scratch_buffer_2k_ptr, // - upfunc0, upfunc1, upfunc2, conv3func); - } + return len; } -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__general__box_filter( - wuffs_base__pixel_buffer* dst, - uint32_t width, - uint32_t height, - const uint8_t* src_ptr0, - const uint8_t* src_ptr1, - const uint8_t* src_ptr2, - uint32_t stride0, - uint32_t stride1, - uint32_t stride2, - uint32_t inv_h0, - uint32_t inv_h1, - uint32_t inv_h2, - uint32_t inv_v0, - uint32_t inv_v1, - uint32_t inv_v2, - uint32_t half_width_for_2to1, - uint32_t half_height_for_2to1, - uint8_t* scratch_buffer_2k_ptr, - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func (*upfuncs)[4][4], - wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_func conv3func) { - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc0 = - (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc1 = - (*upfuncs)[(inv_h1 - 1u) & 3u][(inv_v1 - 1u) & 3u]; - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfunc2 = - (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; - - uint32_t y; - for (y = 0u; y < height; y++) { - const uint8_t* src0_major = src_ptr0 + ((y / inv_v0) * (size_t)stride0); - const uint8_t* src1_major = src_ptr1 + ((y / inv_v1) * (size_t)stride1); - const uint8_t* src2_major = src_ptr2 + ((y / inv_v2) * (size_t)stride2); +// -------- - uint32_t x = 0u; - while (x < width) { - uint32_t end = x + 672u; - if (end > width) { - end = width; - } +static uint64_t // +wuffs_private_impl__swizzle_xxxx__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len4 = dst_len / 4; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; - uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; - uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; + const size_t loop_unroll_count = 4; - const uint8_t* up0 = (*upfunc0)( // - scratch_buffer_2k_ptr + (0u * 672u), // - src0_major + (x / inv_h0), // - src0_major + (x / inv_h0), // - src_len0, // - 0u, false, false); + while (n >= loop_unroll_count) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (1 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[1] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (2 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[2] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (3 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[3] * 4))); - const uint8_t* up1 = (*upfunc1)( // - scratch_buffer_2k_ptr + (1u * 672u), // - src1_major + (x / inv_h1), // - src1_major + (x / inv_h1), // - src_len1, // - 0u, false, false); + s += loop_unroll_count * 1; + d += loop_unroll_count * 4; + n -= loop_unroll_count; + } - const uint8_t* up2 = (*upfunc2)( // - scratch_buffer_2k_ptr + (2u * 672u), // - src2_major + (x / inv_h2), // - src2_major + (x / inv_h2), // - src_len2, // - 0u, false, false); + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); - (*conv3func)(dst, x, end, y, up0, up1, up2); - x = end; - } + s += 1 * 1; + d += 1 * 4; + n -= 1; } -} -// -------- + return len; +} -// wuffs_base__pixel_swizzler__flattened_length is like -// wuffs_base__table__flattened_length but returns uint64_t (not size_t) and -// also accounts for subsampling. static uint64_t // -wuffs_base__pixel_swizzler__flattened_length(uint32_t width, - uint32_t height, - uint32_t stride, - uint32_t inv_h, - uint32_t inv_v) { - uint64_t scaled_width = (((uint64_t)width) + (inv_h - 1u)) / inv_h; - uint64_t scaled_height = (((uint64_t)height) + (inv_v - 1u)) / inv_v; - if (scaled_height <= 0u) { - return 0u; +wuffs_private_impl__swizzle_xxxx__index_binary_alpha__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; } - return ((scaled_height - 1u) * stride) + scaled_width; -} + size_t dst_len4 = dst_len / 4; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -WUFFS_BASE__MAYBE_STATIC wuffs_base__status // -wuffs_base__pixel_swizzler__swizzle_ycck( - const wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_buffer* dst, - wuffs_base__slice_u8 dst_palette, - uint32_t width, - uint32_t height, - wuffs_base__slice_u8 src0, - wuffs_base__slice_u8 src1, - wuffs_base__slice_u8 src2, - wuffs_base__slice_u8 src3, - uint32_t width0, - uint32_t width1, - uint32_t width2, - uint32_t width3, - uint32_t height0, - uint32_t height1, - uint32_t height2, - uint32_t height3, - uint32_t stride0, - uint32_t stride1, - uint32_t stride2, - uint32_t stride3, - uint8_t h0, - uint8_t h1, - uint8_t h2, - uint8_t h3, - uint8_t v0, - uint8_t v1, - uint8_t v2, - uint8_t v3, - bool is_rgb_or_cmyk, - bool triangle_filter_for_2to1, - wuffs_base__slice_u8 scratch_buffer_2k) { - if (!p) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } else if (!dst || (width > 0xFFFFu) || (height > 0xFFFFu) || // - (4u <= ((unsigned int)h0 - 1u)) || // - (4u <= ((unsigned int)h1 - 1u)) || // - (4u <= ((unsigned int)h2 - 1u)) || // - (4u <= ((unsigned int)v0 - 1u)) || // - (4u <= ((unsigned int)v1 - 1u)) || // - (4u <= ((unsigned int)v2 - 1u)) || // - (scratch_buffer_2k.len < 2048u)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + const size_t loop_unroll_count = 4; + + while (n >= loop_unroll_count) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); + } + uint32_t s1 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[1] * 4)); + if (s1) { + wuffs_base__poke_u32le__no_bounds_check(d + (1 * 4), s1); + } + uint32_t s2 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[2] * 4)); + if (s2) { + wuffs_base__poke_u32le__no_bounds_check(d + (2 * 4), s2); + } + uint32_t s3 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[3] * 4)); + if (s3) { + wuffs_base__poke_u32le__no_bounds_check(d + (3 * 4), s3); + } + + s += loop_unroll_count * 1; + d += loop_unroll_count * 4; + n -= loop_unroll_count; } - if ((h3 != 0u) || (v3 != 0u)) { - if ((4u <= ((unsigned int)h3 - 1u)) || // - (4u <= ((unsigned int)v3 - 1u))) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + + while (n >= 1) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); } + + s += 1 * 1; + d += 1 * 4; + n -= 1; } - uint32_t max_incl_h = wuffs_base__u32__max_of_4(h0, h1, h2, h3); - uint32_t max_incl_v = wuffs_base__u32__max_of_4(v0, v1, v2, v3); + return len; +} - // Calculate the inverse h and v ratios. - // - // It also canonicalizes (h=2 and max_incl_h=4) as equivalent to (h=1 and - // max_incl_h=2). In both cases, the inv_h value is 2. - uint32_t inv_h0 = max_incl_h / h0; - uint32_t inv_h1 = max_incl_h / h1; - uint32_t inv_h2 = max_incl_h / h2; - uint32_t inv_h3 = h3 ? (max_incl_h / h3) : 0u; - uint32_t inv_v0 = max_incl_v / v0; - uint32_t inv_v1 = max_incl_v / v1; - uint32_t inv_v2 = max_incl_v / v2; - uint32_t inv_v3 = v3 ? (max_incl_v / v3) : 0u; +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_xxxx__y__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - uint32_t half_width_for_2to1 = (width + 1u) / 2u; - uint32_t half_height_for_2to1 = (height + 1u) / 2u; - - width = wuffs_base__u32__min_of_5( // - width, // - width0 * inv_h0, // - width1 * inv_h1, // - width2 * inv_h2, // - wuffs_base__pixel_config__width(&dst->pixcfg)); - height = wuffs_base__u32__min_of_5( // - height, // - height0 * inv_v0, // - height1 * inv_v1, // - height2 * inv_v2, // - wuffs_base__pixel_config__height(&dst->pixcfg)); + __m128i shuffle = _mm_set_epi8(+0x03, +0x03, +0x03, +0x03, // + +0x02, +0x02, +0x02, +0x02, // + +0x01, +0x01, +0x01, +0x01, // + +0x00, +0x00, +0x00, +0x00); + __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00); - if (((h0 * inv_h0) != max_incl_h) || // - ((h1 * inv_h1) != max_incl_h) || // - ((h2 * inv_h2) != max_incl_h) || // - ((v0 * inv_v0) != max_incl_v) || // - ((v1 * inv_v1) != max_incl_v) || // - ((v2 * inv_v2) != max_incl_v) || // - (src0.len < wuffs_base__pixel_swizzler__flattened_length( - width, height, stride0, inv_h0, inv_v0)) || - (src1.len < wuffs_base__pixel_swizzler__flattened_length( - width, height, stride1, inv_h1, inv_v1)) || - (src2.len < wuffs_base__pixel_swizzler__flattened_length( - width, height, stride2, inv_h2, inv_v2))) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((h3 != 0u) || (v3 != 0u)) { - if (((h3 * inv_h3) != max_incl_h) || // - ((v3 * inv_v3) != max_incl_v) || // - (src3.len < wuffs_base__pixel_swizzler__flattened_length( - width, height, stride3, inv_h3, inv_v3))) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - } + while (n >= 4) { + __m128i x; + x = _mm_cvtsi32_si128((int)(wuffs_base__peek_u32le__no_bounds_check(s))); + x = _mm_shuffle_epi8(x, shuffle); + x = _mm_or_si128(x, or_ff); + _mm_storeu_si128((__m128i*)(void*)d, x); - if (wuffs_base__pixel_format__is_planar(&dst->pixcfg.private_impl.pixfmt)) { - // TODO: see wuffs_base__pixel_buffer__set_color_u32_at's TODO. - return wuffs_base__make_status( - wuffs_base__error__unsupported_pixel_swizzler_option); + s += 4 * 1; + d += 4 * 4; + n -= 4; } - switch (dst->pixcfg.private_impl.pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__Y: - case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: - case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - case WUFFS_BASE__PIXEL_FORMAT__BGR: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - case WUFFS_BASE__PIXEL_FORMAT__RGB: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - break; + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); - default: - // TODO: see wuffs_base__pixel_buffer__set_color_u32_at's TODO. - return wuffs_base__make_status( - wuffs_base__error__unsupported_pixel_swizzler_option); + s += 1 * 1; + d += 1 * 4; + n -= 1; } - if ((width <= 0u) || (height <= 0u)) { - return wuffs_base__make_status(NULL); - } + return len; +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 - wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_func conv3func = NULL; +static uint64_t // +wuffs_private_impl__swizzle_xxxx__y(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - if (is_rgb_or_cmyk) { - conv3func = &wuffs_base__pixel_swizzler__swizzle_rgb__convert_3_general; - } else { - switch (dst->pixcfg.private_impl.pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) - if (wuffs_base__cpu_arch__have_x86_avx2()) { - conv3func = - &wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_bgrx_x86_avx2; - break; - } -#endif - conv3func = &wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_bgrx; - break; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) - if (wuffs_base__cpu_arch__have_x86_avx2()) { - conv3func = - &wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_rgbx_x86_avx2; - break; - } -#endif - conv3func = &wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_rgbx; - break; - default: - conv3func = &wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_general; - break; - } + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); + + s += 1 * 1; + d += 1 * 4; + n -= 1; } - void (*func)( - wuffs_base__pixel_buffer * dst, // - uint32_t width, // - uint32_t height, // - const uint8_t* src_ptr0, // - const uint8_t* src_ptr1, // - const uint8_t* src_ptr2, // - uint32_t stride0, // - uint32_t stride1, // - uint32_t stride2, // - uint32_t inv_h0, // - uint32_t inv_h1, // - uint32_t inv_h2, // - uint32_t inv_v0, // - uint32_t inv_v1, // - uint32_t inv_v2, // - uint32_t half_width_for_2to1, // - uint32_t half_height_for_2to1, // - uint8_t* scratch_buffer_2k_ptr, // - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func(*upfuncs)[4][4], - wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_func conv3func) = - &wuffs_base__pixel_swizzler__swizzle_ycc__general__box_filter; - - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_func upfuncs[4][4]; - memcpy(&upfuncs, &wuffs_base__pixel_swizzler__swizzle_ycc__upsample_funcs, - sizeof upfuncs); + return len; +} - if (triangle_filter_for_2to1 && - (wuffs_base__pixel_swizzler__has_triangle_upsampler(inv_h0, inv_v0) || - wuffs_base__pixel_swizzler__has_triangle_upsampler(inv_h1, inv_v1) || - wuffs_base__pixel_swizzler__has_triangle_upsampler(inv_h2, inv_v2))) { - func = &wuffs_base__pixel_swizzler__swizzle_ycc__general__triangle_filter; - - upfuncs[0][1] = - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h1v2_triangle; - upfuncs[1][0] = - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2v1_triangle; - upfuncs[1][1] = - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2v2_triangle; - -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -#if defined(__GNUC__) && !defined(__clang__) - // Don't use our AVX2 implementation for GCC (but do use it for clang). For - // some unknown reason, GCC performs noticably better on the non-SIMD - // version. Possibly because GCC's auto-vectorizer is smarter (just with - // SSE2, not AVX2) than our hand-written code, but that's just a guess. - // - // See commits 51bc60ef9298cb2efc1b29a9681191f66d49820d and - // cd769a0cdf1b5affee13f6089b995f3d39569cb4 for benchmark numbers. - // - // See also https://godbolt.org/z/MbhbPGEz4 for Debian Bullseye's clang 11 - // versus gcc 10, where only gcc auto-vectorizes, although later clang - // versions will also auto-vectorize. -#else - if (wuffs_base__cpu_arch__have_x86_avx2()) { - upfuncs[1][1] = - wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2v2_triangle_x86_avx2; - } -#endif -#endif - } +static uint64_t // +wuffs_private_impl__swizzle_xxxx__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - if ((h3 != 0u) || (v3 != 0u)) { - wuffs_base__pixel_swizzler__swizzle_ycc__convert_4_func conv4func = - is_rgb_or_cmyk - ? &wuffs_base__pixel_swizzler__swizzle_cmyk__convert_4_general - : &wuffs_base__pixel_swizzler__swizzle_ycck__convert_4_general; - wuffs_base__pixel_swizzler__swizzle_ycck__general__triangle_filter( // - dst, width, height, // - src0.ptr, src1.ptr, src2.ptr, src3.ptr, // - stride0, stride1, stride2, stride3, // - inv_h0, inv_h1, inv_h2, inv_h3, // - inv_v0, inv_v1, inv_v2, inv_v3, // - half_width_for_2to1, half_height_for_2to1, // - scratch_buffer_2k.ptr, &upfuncs, conv4func); + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); - } else { - (*func)( // - dst, width, height, // - src0.ptr, src1.ptr, src2.ptr, // - stride0, stride1, stride2, // - inv_h0, inv_h1, inv_h2, // - inv_v0, inv_v1, inv_v2, // - half_width_for_2to1, half_height_for_2to1, // - scratch_buffer_2k.ptr, &upfuncs, conv3func); + s += 1 * 2; + d += 1 * 4; + n -= 1; } - return wuffs_base__make_status(NULL); + return len; } // -------- -// ‼ WUFFS MULTI-FILE SECTION +x86_avx2 -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_bgrx_x86_avx2( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2) { - if ((x + 32u) > x_end) { - wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_bgrx( // - dst, x, x_end, y, up0, up1, up2); - return; +static uint64_t // +wuffs_private_impl__swizzle_xxxxxxxx__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; } + size_t dst_len8 = dst_len / 8; + size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - size_t dst_stride = dst->private_impl.planes[0].stride; - uint8_t* dst_iter = dst->private_impl.planes[0].ptr + - (dst_stride * ((size_t)y)) + (4u * ((size_t)x)); - - // u0001 = u16x16 [0x0001 .. 0x0001] - // u00FF = u16x16 [0x00FF .. 0x00FF] - // uFF80 = u16x16 [0xFF80 .. 0xFF80] - // uFFFF = u16x16 [0xFFFF .. 0xFFFF] - const __m256i u0001 = _mm256_set1_epi16(+0x0001); - const __m256i u00FF = _mm256_set1_epi16(+0x00FF); - const __m256i uFF80 = _mm256_set1_epi16(-0x0080); - const __m256i uFFFF = _mm256_set1_epi16(-0x0001); + while (n >= 1) { + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4)))); - // p8000_p0000 = u16x16 [0x8000 0x0000 .. 0x8000 0x0000] - const __m256i p8000_p0000 = _mm256_set_epi16( // - +0x0000, -0x8000, +0x0000, -0x8000, // - +0x0000, -0x8000, +0x0000, -0x8000, // - +0x0000, -0x8000, +0x0000, -0x8000, // - +0x0000, -0x8000, +0x0000, -0x8000); + s += 1 * 1; + d += 1 * 8; + n -= 1; + } - // Per wuffs_base__color_ycc__as__color_u32, the formulae: - // - // R = Y + 1.40200 * Cr - // G = Y - 0.34414 * Cb - 0.71414 * Cr - // B = Y + 1.77200 * Cb - // - // When scaled by 1<<16: - // - // 0.34414 becomes 0x0581A = 22554. - // 0.71414 becomes 0x0B6D2 = 46802. - // 1.40200 becomes 0x166E9 = 91881. - // 1.77200 becomes 0x1C5A2 = 116130. - // - // Separate the integer and fractional parts, since we work with signed - // 16-bit SIMD lanes. The fractional parts range from -0.5 .. +0.5 (as - // floating-point) which is from -0x8000 .. +0x8000 (as fixed-point). - // - // -0x3A5E = -0x20000 + 0x1C5A2 The B:Cb factor. - // +0x66E9 = -0x10000 + 0x166E9 The R:Cr factor. - // -0x581A = +0x00000 - 0x0581A The G:Cb factor. - // +0x492E = +0x10000 - 0x0B6D2 The G:Cr factor. - const __m256i m3A5E = _mm256_set1_epi16(-0x3A5E); - const __m256i p66E9 = _mm256_set1_epi16(+0x66E9); - const __m256i m581A_p492E = _mm256_set_epi16( // - +0x492E, -0x581A, +0x492E, -0x581A, // - +0x492E, -0x581A, +0x492E, -0x581A, // - +0x492E, -0x581A, +0x492E, -0x581A, // - +0x492E, -0x581A, +0x492E, -0x581A); + return len; +} - while (x < x_end) { - // Load chroma values in even and odd columns (the high 8 bits of each - // u16x16 element are zero) and then subtract 0x0080. - // - // cb_all = u8x32 [cb.00 cb.01 cb.02 cb.03 .. cb.1C cb.1D cb.1E cb.1F] - // cb_eve = i16x16 [cb.00-0x80 cb.02-0x80 .. cb.1C-0x80 cb.1E-0x80 ] - // cb_odd = i16x16 [cb.01-0x80 cb.03-0x80 .. cb.1D-0x80 cb.1F-0x80 ] - // - // Ditto for the cr_xxx Chroma-Red values. - __m256i cb_all = _mm256_lddqu_si256((const __m256i*)(const void*)up1); - __m256i cr_all = _mm256_lddqu_si256((const __m256i*)(const void*)up2); - __m256i cb_eve = _mm256_add_epi16(uFF80, _mm256_and_si256(cb_all, u00FF)); - __m256i cr_eve = _mm256_add_epi16(uFF80, _mm256_and_si256(cr_all, u00FF)); - __m256i cb_odd = _mm256_add_epi16(uFF80, _mm256_srli_epi16(cb_all, 8)); - __m256i cr_odd = _mm256_add_epi16(uFF80, _mm256_srli_epi16(cr_all, 8)); +static uint64_t // +wuffs_private_impl__swizzle_xxxxxxxx__index_binary_alpha__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len8 = dst_len / 8; + size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // ---- + while (n >= 1) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), wuffs_base__color_u32__as__color_u64(s0)); + } - // Calculate: - // - // B-Y = (+1.77200 * Cb) as floating-point - // R-Y = (+1.40200 * Cr) as floating-point - // - // B-Y = ((0x2_0000 - 0x3A5E) * Cb) as fixed-point - // R-Y = ((0x1_0000 + 0x66E9) * Cr) as fixed-point - // - // B-Y = ((-0x3A5E * Cb) + ("2.0" * Cb)) - // R-Y = ((+0x66E9 * Cr) + ("1.0" * Cr)) + s += 1 * 1; + d += 1 * 8; + n -= 1; + } - // Multiply by m3A5E or p66E9, taking the high 16 bits. There's also a - // doubling (add x to itself), adding-of-1 and halving (shift right by 1). - // That makes multiply-and-take-high round to nearest (instead of down). - __m256i tmp_by_eve = _mm256_srai_epi16( - _mm256_add_epi16( - _mm256_mulhi_epi16(_mm256_add_epi16(cb_eve, cb_eve), m3A5E), u0001), - 1); - __m256i tmp_by_odd = _mm256_srai_epi16( - _mm256_add_epi16( - _mm256_mulhi_epi16(_mm256_add_epi16(cb_odd, cb_odd), m3A5E), u0001), - 1); - __m256i tmp_ry_eve = _mm256_srai_epi16( - _mm256_add_epi16( - _mm256_mulhi_epi16(_mm256_add_epi16(cr_eve, cr_eve), p66E9), u0001), - 1); - __m256i tmp_ry_odd = _mm256_srai_epi16( - _mm256_add_epi16( - _mm256_mulhi_epi16(_mm256_add_epi16(cr_odd, cr_odd), p66E9), u0001), - 1); + return len; +} - // Add (2 * Cb) and (1 * Cr). - __m256i by_eve = - _mm256_add_epi16(tmp_by_eve, _mm256_add_epi16(cb_eve, cb_eve)); - __m256i by_odd = - _mm256_add_epi16(tmp_by_odd, _mm256_add_epi16(cb_odd, cb_odd)); - __m256i ry_eve = _mm256_add_epi16(tmp_ry_eve, cr_eve); - __m256i ry_odd = _mm256_add_epi16(tmp_ry_odd, cr_odd); +static uint64_t // +wuffs_private_impl__swizzle_xxxxxxxx__y(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // ---- + while (n >= 1) { + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), 0xFFFF000000000000 | (0x010101010101 * (uint64_t)s[0])); - // Calculate: - // - // G-Y = (-0.34414 * Cb) + - // (-0.71414 * Cr) as floating-point - // - // G-Y = ((+0x0_0000 - 0x581A) * Cb) + - // ((-0x1_0000 + 0x492E) * Cr) as fixed-point - // - // G-Y = (-0x581A * Cb) + - // (+0x492E * Cr) - ("1.0" * Cr) + s += 1 * 1; + d += 1 * 8; + n -= 1; + } - // Multiply-add to get ((-0x581A * Cb) + (+0x492E * Cr)). - __m256i tmp0_gy_eve_lo = _mm256_madd_epi16( // - _mm256_unpacklo_epi16(cb_eve, cr_eve), m581A_p492E); - __m256i tmp0_gy_eve_hi = _mm256_madd_epi16( // - _mm256_unpackhi_epi16(cb_eve, cr_eve), m581A_p492E); - __m256i tmp0_gy_odd_lo = _mm256_madd_epi16( // - _mm256_unpacklo_epi16(cb_odd, cr_odd), m581A_p492E); - __m256i tmp0_gy_odd_hi = _mm256_madd_epi16( // - _mm256_unpackhi_epi16(cb_odd, cr_odd), m581A_p492E); + return len; +} - // Divide the i32x8 vectors by (1 << 16), rounding to nearest. - __m256i tmp1_gy_eve_lo = - _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_eve_lo, p8000_p0000), 16); - __m256i tmp1_gy_eve_hi = - _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_eve_hi, p8000_p0000), 16); - __m256i tmp1_gy_odd_lo = - _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_odd_lo, p8000_p0000), 16); - __m256i tmp1_gy_odd_hi = - _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_odd_hi, p8000_p0000), 16); +static uint64_t // +wuffs_private_impl__swizzle_xxxxxxxx__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len2 = src_len / 2; + size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Pack the ((-0x581A * Cb) + (+0x492E * Cr)) as i16x16 and subtract Cr. - __m256i gy_eve = _mm256_sub_epi16( - _mm256_packs_epi32(tmp1_gy_eve_lo, tmp1_gy_eve_hi), cr_eve); - __m256i gy_odd = _mm256_sub_epi16( - _mm256_packs_epi32(tmp1_gy_odd_lo, tmp1_gy_odd_hi), cr_odd); + while (n >= 1) { + uint64_t s0 = + ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(s + (0 * 2)))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), 0xFFFF000000000000 | (0x000100010001 * s0)); - // ---- + s += 1 * 2; + d += 1 * 8; + n -= 1; + } - // Add Y to (B-Y), (G-Y) and (R-Y) to produce B, G and R. - // - // For the resultant packed_x_xxx vectors, only elements 0 ..= 7 and 16 ..= - // 23 of the 32-element vectors matter (since we'll unpacklo but not - // unpackhi them). Let … denote 8 ignored consecutive u8 values and let % - // denote 0xFF. We'll end this section with: - // - // packed_b_eve = u8x32 [b00 b02 .. b0C b0E … b10 b12 .. b1C b1E …] - // packed_b_odd = u8x32 [b01 b03 .. b0D b0F … b11 b13 .. b1D b1F …] - // packed_g_eve = u8x32 [g00 g02 .. g0C g0E … g10 g12 .. g1C g1E …] - // packed_g_odd = u8x32 [g01 g03 .. g0D g0F … g11 g13 .. g1D g1F …] - // packed_r_eve = u8x32 [r00 r02 .. r0C r0E … r10 r12 .. r1C r1E …] - // packed_r_odd = u8x32 [r01 r03 .. r0D r0F … r11 r13 .. r1D r1F …] - // uFFFF = u8x32 [ % % .. % % … % % .. % % …] + return len; +} - __m256i yy_all = _mm256_lddqu_si256((const __m256i*)(const void*)up0); - __m256i yy_eve = _mm256_and_si256(yy_all, u00FF); - __m256i yy_odd = _mm256_srli_epi16(yy_all, 8); +// -------- - __m256i loose_b_eve = _mm256_add_epi16(by_eve, yy_eve); - __m256i loose_b_odd = _mm256_add_epi16(by_odd, yy_odd); - __m256i packed_b_eve = _mm256_packus_epi16(loose_b_eve, loose_b_eve); - __m256i packed_b_odd = _mm256_packus_epi16(loose_b_odd, loose_b_odd); +static uint64_t // +wuffs_private_impl__swizzle_y__bgra_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - __m256i loose_g_eve = _mm256_add_epi16(gy_eve, yy_eve); - __m256i loose_g_odd = _mm256_add_epi16(gy_odd, yy_odd); - __m256i packed_g_eve = _mm256_packus_epi16(loose_g_eve, loose_g_eve); - __m256i packed_g_odd = _mm256_packus_epi16(loose_g_odd, loose_g_odd); + while (n >= 1) { + uint32_t s0 = + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); - __m256i loose_r_eve = _mm256_add_epi16(ry_eve, yy_eve); - __m256i loose_r_odd = _mm256_add_epi16(ry_odd, yy_odd); - __m256i packed_r_eve = _mm256_packus_epi16(loose_r_eve, loose_r_eve); - __m256i packed_r_odd = _mm256_packus_epi16(loose_r_odd, loose_r_odd); + s += 1 * 4; + d += 1 * 1; + n -= 1; + } - // ---- + return len; +} - // Mix those values (unpacking in 8, 16 and then 32 bit units) to get the - // desired BGRX/RGBX order. - // - // From here onwards, all of our __m256i registers are u8x32. +static uint64_t // +wuffs_private_impl__swizzle_y__bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // mix00 = [b00 g00 b02 g02 .. b0E g0E b10 g10 .. b1C g1C b1E g1E] - // mix01 = [b01 g01 b03 g03 .. b0F g0F b11 g11 .. b1D g1D b1F g1F] - // mix02 = [r00 % r02 % .. r0E % r10 % .. r1C % r1E %] - // mix03 = [r01 % r03 % .. r0F % r11 % .. r1D % r1F %] - // - // See also § below. - __m256i mix00 = _mm256_unpacklo_epi8(packed_b_eve, packed_g_eve); - __m256i mix01 = _mm256_unpacklo_epi8(packed_b_odd, packed_g_odd); - __m256i mix02 = _mm256_unpacklo_epi8(packed_r_eve, uFFFF); - __m256i mix03 = _mm256_unpacklo_epi8(packed_r_odd, uFFFF); + while (n >= 1) { + uint32_t d0 = 0xFF000000 | (0x00010101 * ((uint32_t)(d[0]))); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray( + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - // mix10 = [b00 g00 r00 % b02 g02 r02 % b04 g04 r04 % b06 g06 r06 % - // b10 g10 r10 % b12 g12 r12 % b14 g14 r14 % b16 g16 r16 %] - // mix11 = [b01 g01 r01 % b03 g03 r03 % b05 g05 r05 % b07 g07 r07 % - // b11 g11 r11 % b13 g13 r13 % b15 g15 r15 % b17 g17 r17 %] - // mix12 = [b08 g08 r08 % b0A g0A r0A % b0C g0C r0C % b0E g0E r0E % - // b18 g18 r18 % b1A g1A r1A % b1C g1C r1C % b1E g1E r1E %] - // mix13 = [b09 g09 r09 % b0B g0B r0B % b0D g0D r0D % b0F g0F r0F % - // b19 g19 r19 % b1B g1B r1B % b1D g1D r1D % b1F g1F r1F %] - __m256i mix10 = _mm256_unpacklo_epi16(mix00, mix02); - __m256i mix11 = _mm256_unpacklo_epi16(mix01, mix03); - __m256i mix12 = _mm256_unpackhi_epi16(mix00, mix02); - __m256i mix13 = _mm256_unpackhi_epi16(mix01, mix03); + s += 1 * 4; + d += 1 * 1; + n -= 1; + } - // mix20 = [b00 g00 r00 % b01 g01 r01 % b02 g02 r02 % b03 g03 r03 % - // b10 g10 r10 % b11 g11 r11 % b12 g12 r12 % b13 g13 r13 %] - // mix21 = [b04 g04 r04 % b05 g05 r05 % b06 g06 r06 % b07 g07 r07 % - // b14 g14 r14 % b15 g15 r15 % b16 g16 r16 % b17 g17 r17 %] - // mix22 = [b08 g08 r08 % b09 g09 r09 % b0A g0A r0A % b0B g0B r0B % - // b18 g18 r18 % b19 g19 r19 % b1A g1A r1A % b1B g1B r1B %] - // mix23 = [b0C g0C r0C % b0D g0D r0D % b0E g0E r0E % b0F g0F r0F % - // b1C g1C r1C % b1D g1D r1D % b1E g1E r1E % b1F g1F r1F %] - __m256i mix20 = _mm256_unpacklo_epi32(mix10, mix11); - __m256i mix21 = _mm256_unpackhi_epi32(mix10, mix11); - __m256i mix22 = _mm256_unpacklo_epi32(mix12, mix13); - __m256i mix23 = _mm256_unpackhi_epi32(mix12, mix13); + return len; +} - // mix30 = [b00 g00 r00 % b01 g01 r01 % b02 g02 r02 % b03 g03 r03 % - // b04 g04 r04 % b05 g05 r05 % b06 g06 r06 % b07 g07 r07 %] - // mix31 = [b08 g08 r08 % b09 g09 r09 % b0A g0A r0A % b0B g0B r0B % - // b0C g0C r0C % b0D g0D r0D % b0E g0E r0E % b0F g0F r0F %] - // mix32 = [b10 g10 r10 % b11 g11 r11 % b12 g12 r12 % b13 g13 r13 % - // b14 g14 r14 % b15 g15 r15 % b16 g16 r16 % b17 g17 r17 %] - // mix33 = [b18 g18 r18 % b19 g19 r19 % b1A g1A r1A % b1B g1B r1B % - // b1C g1C r1C % b1D g1D r1D % b1E g1E r1E % b1F g1F r1F %] - __m256i mix30 = _mm256_permute2x128_si256(mix20, mix21, 0x20); - __m256i mix31 = _mm256_permute2x128_si256(mix22, mix23, 0x20); - __m256i mix32 = _mm256_permute2x128_si256(mix20, mix21, 0x31); - __m256i mix33 = _mm256_permute2x128_si256(mix22, mix23, 0x31); +static uint64_t // +wuffs_private_impl__swizzle_y__bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Write out four u8x32 SIMD registers (128 bytes, 32 BGRX/RGBX pixels). - _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x00), mix30); - _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x20), mix31); - _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x40), mix32); - _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x60), mix33); + while (n >= 1) { + uint32_t s0 = + 0xFF000000 | wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); - // Advance by up to 32 pixels. The first iteration might be smaller than 32 - // so that all of the remaining steps are exactly 32. - uint32_t n = 32u - (31u & (x - x_end)); - dst_iter += 4u * n; - up0 += n; - up1 += n; - up2 += n; - x += n; + s += 1 * 4; + d += 1 * 1; + n -= 1; } + + return len; } -// The rgbx flavor (below) is exactly the same as the bgrx flavor (above) -// except for the lines marked with a § and that comments were stripped. -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") -static void // -wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_rgbx_x86_avx2( - wuffs_base__pixel_buffer* dst, - uint32_t x, - uint32_t x_end, - uint32_t y, - const uint8_t* up0, - const uint8_t* up1, - const uint8_t* up2) { - if ((x + 32u) > x_end) { - wuffs_base__pixel_swizzler__swizzle_ycc__convert_3_bgrx( // - dst, x, x_end, y, up0, up1, up2); - return; - } +static uint64_t // +wuffs_private_impl__swizzle_y__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len2 = src_len / 2; + size_t len = (dst_len < src_len2) ? dst_len : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - size_t dst_stride = dst->private_impl.planes[0].stride; - uint8_t* dst_iter = dst->private_impl.planes[0].ptr + - (dst_stride * ((size_t)y)) + (4u * ((size_t)x)); + while (n >= 1) { + d[0] = s[0]; - const __m256i u0001 = _mm256_set1_epi16(+0x0001); - const __m256i u00FF = _mm256_set1_epi16(+0x00FF); - const __m256i uFF80 = _mm256_set1_epi16(-0x0080); - const __m256i uFFFF = _mm256_set1_epi16(-0x0001); + s += 1 * 2; + d += 1 * 1; + n -= 1; + } - const __m256i p8000_p0000 = _mm256_set_epi16( // - +0x0000, -0x8000, +0x0000, -0x8000, // - +0x0000, -0x8000, +0x0000, -0x8000, // - +0x0000, -0x8000, +0x0000, -0x8000, // - +0x0000, -0x8000, +0x0000, -0x8000); + return len; +} - const __m256i m3A5E = _mm256_set1_epi16(-0x3A5E); - const __m256i p66E9 = _mm256_set1_epi16(+0x66E9); - const __m256i m581A_p492E = _mm256_set_epi16( // - +0x492E, -0x581A, +0x492E, -0x581A, // - +0x492E, -0x581A, +0x492E, -0x581A, // - +0x492E, -0x581A, +0x492E, -0x581A, // - +0x492E, -0x581A, +0x492E, -0x581A); +static uint64_t // +wuffs_private_impl__swizzle_y_16le__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - while (x < x_end) { - __m256i cb_all = _mm256_lddqu_si256((const __m256i*)(const void*)up1); - __m256i cr_all = _mm256_lddqu_si256((const __m256i*)(const void*)up2); - __m256i cb_eve = _mm256_add_epi16(uFF80, _mm256_and_si256(cb_all, u00FF)); - __m256i cr_eve = _mm256_add_epi16(uFF80, _mm256_and_si256(cr_all, u00FF)); - __m256i cb_odd = _mm256_add_epi16(uFF80, _mm256_srli_epi16(cb_all, 8)); - __m256i cr_odd = _mm256_add_epi16(uFF80, _mm256_srli_epi16(cr_all, 8)); + while (n >= 1) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + d[0] = s1; + d[1] = s0; - __m256i tmp_by_eve = _mm256_srai_epi16( - _mm256_add_epi16( - _mm256_mulhi_epi16(_mm256_add_epi16(cb_eve, cb_eve), m3A5E), u0001), - 1); - __m256i tmp_by_odd = _mm256_srai_epi16( - _mm256_add_epi16( - _mm256_mulhi_epi16(_mm256_add_epi16(cb_odd, cb_odd), m3A5E), u0001), - 1); - __m256i tmp_ry_eve = _mm256_srai_epi16( - _mm256_add_epi16( - _mm256_mulhi_epi16(_mm256_add_epi16(cr_eve, cr_eve), p66E9), u0001), - 1); - __m256i tmp_ry_odd = _mm256_srai_epi16( - _mm256_add_epi16( - _mm256_mulhi_epi16(_mm256_add_epi16(cr_odd, cr_odd), p66E9), u0001), - 1); + s += 1 * 2; + d += 1 * 2; + n -= 1; + } - __m256i by_eve = - _mm256_add_epi16(tmp_by_eve, _mm256_add_epi16(cb_eve, cb_eve)); - __m256i by_odd = - _mm256_add_epi16(tmp_by_odd, _mm256_add_epi16(cb_odd, cb_odd)); - __m256i ry_eve = _mm256_add_epi16(tmp_ry_eve, cr_eve); - __m256i ry_odd = _mm256_add_epi16(tmp_ry_odd, cr_odd); + return len; +} - __m256i tmp0_gy_eve_lo = _mm256_madd_epi16( // - _mm256_unpacklo_epi16(cb_eve, cr_eve), m581A_p492E); - __m256i tmp0_gy_eve_hi = _mm256_madd_epi16( // - _mm256_unpackhi_epi16(cb_eve, cr_eve), m581A_p492E); - __m256i tmp0_gy_odd_lo = _mm256_madd_epi16( // - _mm256_unpacklo_epi16(cb_odd, cr_odd), m581A_p492E); - __m256i tmp0_gy_odd_hi = _mm256_madd_epi16( // - _mm256_unpackhi_epi16(cb_odd, cr_odd), m581A_p492E); +// -------- - __m256i tmp1_gy_eve_lo = - _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_eve_lo, p8000_p0000), 16); - __m256i tmp1_gy_eve_hi = - _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_eve_hi, p8000_p0000), 16); - __m256i tmp1_gy_odd_lo = - _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_odd_lo, p8000_p0000), 16); - __m256i tmp1_gy_odd_hi = - _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_odd_hi, p8000_p0000), 16); +static uint64_t // +wuffs_private_impl__swizzle_ya_nonpremul__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - __m256i gy_eve = _mm256_sub_epi16( - _mm256_packs_epi32(tmp1_gy_eve_lo, tmp1_gy_eve_hi), cr_eve); - __m256i gy_odd = _mm256_sub_epi16( - _mm256_packs_epi32(tmp1_gy_odd_lo, tmp1_gy_odd_hi), cr_odd); + while (n >= 1) { + uint32_t d0 = ((uint32_t)(d[1]) << 24) | ((uint32_t)(d[0]) * 0x010101); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + uint32_t c0 = + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)(c0 >> 16)); - __m256i yy_all = _mm256_lddqu_si256((const __m256i*)(const void*)up0); - __m256i yy_eve = _mm256_and_si256(yy_all, u00FF); - __m256i yy_odd = _mm256_srli_epi16(yy_all, 8); + s += 1 * 2; + d += 1 * 2; + n -= 1; + } - __m256i loose_b_eve = _mm256_add_epi16(by_eve, yy_eve); - __m256i loose_b_odd = _mm256_add_epi16(by_odd, yy_odd); - __m256i packed_b_eve = _mm256_packus_epi16(loose_b_eve, loose_b_eve); - __m256i packed_b_odd = _mm256_packus_epi16(loose_b_odd, loose_b_odd); + return len; +} - __m256i loose_g_eve = _mm256_add_epi16(gy_eve, yy_eve); - __m256i loose_g_odd = _mm256_add_epi16(gy_odd, yy_odd); - __m256i packed_g_eve = _mm256_packus_epi16(loose_g_eve, loose_g_eve); - __m256i packed_g_odd = _mm256_packus_epi16(loose_g_odd, loose_g_odd); +// -------- - __m256i loose_r_eve = _mm256_add_epi16(ry_eve, yy_eve); - __m256i loose_r_odd = _mm256_add_epi16(ry_odd, yy_odd); - __m256i packed_r_eve = _mm256_packus_epi16(loose_r_eve, loose_r_eve); - __m256i packed_r_odd = _mm256_packus_epi16(loose_r_odd, loose_r_odd); +static uint64_t // +wuffs_private_impl__swizzle_transparent_black_src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + uint64_t num_pixels, + uint32_t dst_pixfmt_bytes_per_pixel) { + uint64_t n = ((uint64_t)dst_len) / dst_pixfmt_bytes_per_pixel; + if (n > num_pixels) { + n = num_pixels; + } + memset(dst_ptr, 0, ((size_t)(n * dst_pixfmt_bytes_per_pixel))); + return n; +} - // § Note the swapped B and R channels. - __m256i mix00 = _mm256_unpacklo_epi8(packed_r_eve, packed_g_eve); - __m256i mix01 = _mm256_unpacklo_epi8(packed_r_odd, packed_g_odd); - __m256i mix02 = _mm256_unpacklo_epi8(packed_b_eve, uFFFF); - __m256i mix03 = _mm256_unpacklo_epi8(packed_b_odd, uFFFF); +static uint64_t // +wuffs_private_impl__swizzle_transparent_black_src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + uint64_t num_pixels, + uint32_t dst_pixfmt_bytes_per_pixel) { + uint64_t n = ((uint64_t)dst_len) / dst_pixfmt_bytes_per_pixel; + if (n > num_pixels) { + n = num_pixels; + } + return n; +} - __m256i mix10 = _mm256_unpacklo_epi16(mix00, mix02); - __m256i mix11 = _mm256_unpacklo_epi16(mix01, mix03); - __m256i mix12 = _mm256_unpackhi_epi16(mix00, mix02); - __m256i mix13 = _mm256_unpackhi_epi16(mix01, mix03); +// -------- - __m256i mix20 = _mm256_unpacklo_epi32(mix10, mix11); - __m256i mix21 = _mm256_unpackhi_epi32(mix10, mix11); - __m256i mix22 = _mm256_unpacklo_epi32(mix12, mix13); - __m256i mix23 = _mm256_unpackhi_epi32(mix12, mix13); +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__y( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + return wuffs_private_impl__swizzle_copy_1_1; - __m256i mix30 = _mm256_permute2x128_si256(mix20, mix21, 0x20); - __m256i mix31 = _mm256_permute2x128_si256(mix22, mix23, 0x20); - __m256i mix32 = _mm256_permute2x128_si256(mix20, mix21, 0x31); - __m256i mix33 = _mm256_permute2x128_si256(mix22, mix23, 0x31); + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + return wuffs_private_impl__swizzle_bgr_565__y; - _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x00), mix30); - _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x20), mix31); - _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x40), mix32); - _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x60), mix33); + case WUFFS_BASE__PIXEL_FORMAT__BGR: + case WUFFS_BASE__PIXEL_FORMAT__RGB: + return wuffs_private_impl__swizzle_xxx__y; - uint32_t n = 32u - (31u & (x - x_end)); - dst_iter += 4u * n; - up0 += n; - up1 += n; - up2 += n; - x += n; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_xxxx__y__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_xxxx__y; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL_4X16LE: + return wuffs_private_impl__swizzle_xxxxxxxx__y; } + return NULL; } -#if defined(__GNUC__) && !defined(__clang__) -// No-op. -#else -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") -static const uint8_t* // -wuffs_base__pixel_swizzler__swizzle_ycc__upsample_inv_h2v2_triangle_x86_avx2( - uint8_t* dst_ptr, - const uint8_t* src_ptr_major, - const uint8_t* src_ptr_minor, - size_t src_len, - uint32_t h1v2_bias_ignored, - bool first_column, - bool last_column) { - uint8_t* dp = dst_ptr; - const uint8_t* sp_major = src_ptr_major; - const uint8_t* sp_minor = src_ptr_minor; - - if (first_column) { - src_len--; - if ((src_len <= 0u) && last_column) { - uint32_t sv = (12u * ((uint32_t)(*sp_major++))) + // - (4u * ((uint32_t)(*sp_minor++))); - *dp++ = (uint8_t)((sv + 8u) >> 4u); - *dp++ = (uint8_t)((sv + 7u) >> 4u); - return dst_ptr; - } - - uint32_t sv_major_m1 = sp_major[-0]; // Clamp offset to zero. - uint32_t sv_minor_m1 = sp_minor[-0]; // Clamp offset to zero. - uint32_t sv_major_p1 = sp_major[+1]; - uint32_t sv_minor_p1 = sp_minor[+1]; - - uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // - (3u * ((uint32_t)(*sp_minor++))); - *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); - *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); - if (src_len <= 0u) { - return dst_ptr; - } - } - - if (last_column) { - src_len--; - } - - if (src_len < 32) { - // This fallback is the same as the non-SIMD-capable code path. - for (; src_len > 0u; src_len--) { - uint32_t sv_major_m1 = sp_major[-1]; - uint32_t sv_minor_m1 = sp_minor[-1]; - uint32_t sv_major_p1 = sp_major[+1]; - uint32_t sv_minor_p1 = sp_minor[+1]; - - uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // - (3u * ((uint32_t)(*sp_minor++))); - *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); - *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); - } - - } else { - while (src_len > 0u) { - // Load 1+32+1 samples (six u8x32 vectors) from the major (jxx) and minor - // (nxx) rows. - // - // major_p0 = [j00 j01 j02 j03 .. j28 j29 j30 j31] // p0 = "plus 0" - // minor_p0 = [n00 n01 n02 n03 .. n28 n29 n30 n31] // p0 = "plus 0" - // major_m1 = [jm1 j00 j01 j02 .. j27 j28 j29 j30] // m1 = "minus 1" - // minor_m1 = [nm1 n00 n01 n02 .. n27 n28 n29 n30] // m1 = "minus 1" - // major_p1 = [j01 j02 j03 j04 .. j29 j30 j31 j32] // p1 = "plus 1" - // minor_p1 = [n01 n02 n03 n04 .. n29 n30 n31 n32] // p1 = "plus 1" - __m256i major_p0 = - _mm256_lddqu_si256((const __m256i*)(const void*)(sp_major + 0)); - __m256i minor_p0 = - _mm256_lddqu_si256((const __m256i*)(const void*)(sp_minor + 0)); - __m256i major_m1 = - _mm256_lddqu_si256((const __m256i*)(const void*)(sp_major - 1)); - __m256i minor_m1 = - _mm256_lddqu_si256((const __m256i*)(const void*)(sp_minor - 1)); - __m256i major_p1 = - _mm256_lddqu_si256((const __m256i*)(const void*)(sp_major + 1)); - __m256i minor_p1 = - _mm256_lddqu_si256((const __m256i*)(const void*)(sp_minor + 1)); - - // Unpack, staying with u8x32 vectors. - // - // step1_p0_lo = [j00 n00 j01 n01 .. j07 n07 j16 n16 j17 n17 .. j23 n23] - // step1_p0_hi = [j08 n08 j09 n09 .. j15 n15 j24 n24 j25 n25 .. j31 n31] - // step1_m1_lo = [jm1 nm1 j00 n00 .. j06 n06 j15 n15 j16 n16 .. j22 n22] - // step1_m1_hi = [j07 n07 j08 n08 .. j14 n14 j23 n23 j24 n24 .. j30 n30] - // step1_p1_lo = [j01 n01 j02 n02 .. j08 n08 j17 n17 j18 n18 .. j24 n24] - // step1_p1_hi = [j09 n09 j10 n10 .. j16 n16 j25 n25 j26 n26 .. j32 n32] - __m256i step1_p0_lo = _mm256_unpacklo_epi8(major_p0, minor_p0); - __m256i step1_p0_hi = _mm256_unpackhi_epi8(major_p0, minor_p0); - __m256i step1_m1_lo = _mm256_unpacklo_epi8(major_m1, minor_m1); - __m256i step1_m1_hi = _mm256_unpackhi_epi8(major_m1, minor_m1); - __m256i step1_p1_lo = _mm256_unpacklo_epi8(major_p1, minor_p1); - __m256i step1_p1_hi = _mm256_unpackhi_epi8(major_p1, minor_p1); - - // Multiply-add to get u16x16 vectors. - // - // step2_p0_lo = [9*j00+3*n00 9*j01+3*n01 .. 9*j23+3*n23] - // step2_p0_hi = [9*j08+3*n08 9*j09+3*n09 .. 9*j31+3*n31] - // step2_m1_lo = [3*jm1+1*nm1 3*j00+1*n00 .. 3*j22+1*n22] - // step2_m1_hi = [3*j07+1*n07 3*j08+1*n08 .. 3*j30+1*n30] - // step2_p1_lo = [3*j01+1*n01 3*j02+1*n02 .. 3*j24+1*n24] - // step2_p1_hi = [3*j09+1*n09 3*j10+1*n10 .. 3*j32+1*n32] - const __m256i k0309 = _mm256_set1_epi16(0x0309); - const __m256i k0103 = _mm256_set1_epi16(0x0103); - __m256i step2_p0_lo = _mm256_maddubs_epi16(step1_p0_lo, k0309); - __m256i step2_p0_hi = _mm256_maddubs_epi16(step1_p0_hi, k0309); - __m256i step2_m1_lo = _mm256_maddubs_epi16(step1_m1_lo, k0103); - __m256i step2_m1_hi = _mm256_maddubs_epi16(step1_m1_hi, k0103); - __m256i step2_p1_lo = _mm256_maddubs_epi16(step1_p1_lo, k0103); - __m256i step2_p1_hi = _mm256_maddubs_epi16(step1_p1_hi, k0103); - - // Compute the weighted sums of (p0, m1) and (p0, p1). For example: - // - // step3_m1_lo[00] = ((9*j00) + (3*n00) + (3*jm1) + (1*nm1)) as u16 - // step3_p1_hi[15] = ((9*j31) + (3*n31) + (3*j32) + (1*n32)) as u16 - __m256i step3_m1_lo = _mm256_add_epi16(step2_p0_lo, step2_m1_lo); - __m256i step3_m1_hi = _mm256_add_epi16(step2_p0_hi, step2_m1_hi); - __m256i step3_p1_lo = _mm256_add_epi16(step2_p0_lo, step2_p1_lo); - __m256i step3_p1_hi = _mm256_add_epi16(step2_p0_hi, step2_p1_hi); +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__y_16be( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + return wuffs_private_impl__swizzle_y__y_16be; - // Bias by 8 (on the left) or 7 (on the right) and then divide by 16 - // (which is 9+3+3+1) to get a weighted average. On the left (m1), shift - // the u16 right value by 4. On the right (p1), shift right by 4 and then - // shift left by 8 so that, when still in the u16x16 little-endian - // interpretation, we have: - // - m1_element = (etcetera + 8) >> 4 - // - p1_element = ((etcetera + 7) >> 4) << 8 - // - // step4_m1_lo = [0x00?? 0x00?? ... 0x00?? 0x00??] - // step4_p1_lo = [0x??00 0x??00 ... 0x??00 0x??00] - // step4_m1_hi = [0x00?? 0x00?? ... 0x00?? 0x00??] - // step4_p1_hi = [0x??00 0x??00 ... 0x??00 0x??00] - __m256i step4_m1_lo = _mm256_srli_epi16( - _mm256_add_epi16(step3_m1_lo, _mm256_set1_epi16(8)), 4); - __m256i step4_p1_lo = _mm256_slli_epi16( - _mm256_srli_epi16(_mm256_add_epi16(step3_p1_lo, _mm256_set1_epi16(7)), - 4), - 8); - __m256i step4_m1_hi = _mm256_srli_epi16( - _mm256_add_epi16(step3_m1_hi, _mm256_set1_epi16(8)), 4); - __m256i step4_p1_hi = _mm256_slli_epi16( - _mm256_srli_epi16(_mm256_add_epi16(step3_p1_hi, _mm256_set1_epi16(7)), - 4), - 8); + case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: + return wuffs_private_impl__swizzle_y_16le__y_16be; - // Bitwise-or two "0x00"-rich u16x16 vectors to get a u8x32 vector. Do - // that twice. Once for the low columns and once for the high columns. - // - // In terms of jxx (major row) or nxx (minor row) source samples: - // - low columns means ( 0 .. 8; 16 .. 24). - // - high columns means ( 8 .. 16; 24 .. 32). - // - // In terms of dxx destination samples (there are twice as many): - // - low columns means ( 0 .. 16; 32 .. 48). - // - high columns means (16 .. 32; 48 .. 64). - // - // step5_lo = [d00 d01 .. d14 d15 d32 d33 .. d46 d47] - // step5_hi = [d16 d17 .. d30 d31 d48 d49 .. d62 d63] - // - // The d00, d02 ... d62 even elements come from (p0, m1) weighted sums. - // The d01, d03 ... d63 odd elements come from (p0, p1) weighted sums. - __m256i step5_lo = _mm256_or_si256(step4_m1_lo, step4_p1_lo); - __m256i step5_hi = _mm256_or_si256(step4_m1_hi, step4_p1_hi); + case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: + return wuffs_private_impl__swizzle_copy_2_2; - // Permute and store. - // - // step6_00_31 = [d00 d01 .. d14 d15 d16 d17 .. d30 d31] - // step6_32_63 = [d32 d33 .. d46 d47 d48 d49 .. d62 d63] - __m256i step6_00_31 = _mm256_permute2x128_si256(step5_lo, step5_hi, 0x20); - __m256i step6_32_63 = _mm256_permute2x128_si256(step5_lo, step5_hi, 0x31); - _mm256_storeu_si256((__m256i*)(void*)(dp + 0x00), step6_00_31); - _mm256_storeu_si256((__m256i*)(void*)(dp + 0x20), step6_32_63); + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + return wuffs_private_impl__swizzle_bgr_565__y_16be; - // Advance by up to 32 source samples (64 destination samples). The first - // iteration might be smaller than 32 so that all of the remaining steps - // are exactly 32. - size_t n = 32u - (31u & (0u - src_len)); - dp += 2u * n; - sp_major += n; - sp_minor += n; - src_len -= n; - } - } + case WUFFS_BASE__PIXEL_FORMAT__BGR: + case WUFFS_BASE__PIXEL_FORMAT__RGB: + return wuffs_private_impl__swizzle_xxx__y_16be; - if (last_column) { - uint32_t sv_major_m1 = sp_major[-1]; - uint32_t sv_minor_m1 = sp_minor[-1]; - uint32_t sv_major_p1 = sp_major[+0]; // Clamp offset to zero. - uint32_t sv_minor_p1 = sp_minor[+0]; // Clamp offset to zero. + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + return wuffs_private_impl__swizzle_xxxx__y_16be; - uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // - (3u * ((uint32_t)(*sp_minor++))); - *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); - *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL_4X16LE: + return wuffs_private_impl__swizzle_xxxxxxxx__y_16be; } - - return dst_ptr; + return NULL; } -#endif -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) -// ‼ WUFFS MULTI-FILE SECTION -x86_avx2 -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__PIXCONV) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__UTF8) +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__ya_nonpremul( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_2_2; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_ya_nonpremul__ya_nonpremul__src_over; + } + return NULL; -// ---------------- Unicode and UTF-8 + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__ya_nonpremul__src_over; + } + return NULL; -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__utf_8__encode(wuffs_base__slice_u8 dst, uint32_t code_point) { - if (code_point <= 0x7F) { - if (dst.len >= 1) { - dst.ptr[0] = (uint8_t)(code_point); - return 1; - } + case WUFFS_BASE__PIXEL_FORMAT__BGR: + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxx__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_xxx__ya_nonpremul__src_over; + } + return NULL; - } else if (code_point <= 0x07FF) { - if (dst.len >= 2) { - dst.ptr[0] = (uint8_t)(0xC0 | ((code_point >> 6))); - dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); - return 2; - } + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__ya_nonpremul__src_over; + } + return NULL; - } else if (code_point <= 0xFFFF) { - if ((dst.len >= 3) && ((code_point < 0xD800) || (0xDFFF < code_point))) { - dst.ptr[0] = (uint8_t)(0xE0 | ((code_point >> 12))); - dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 6) & 0x3F)); - dst.ptr[2] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); - return 3; - } + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_premul__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__ya_nonpremul__src_over; + } + return NULL; - } else if (code_point <= 0x10FFFF) { - if (dst.len >= 4) { - dst.ptr[0] = (uint8_t)(0xF0 | ((code_point >> 18))); - dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 12) & 0x3F)); - dst.ptr[2] = (uint8_t)(0x80 | ((code_point >> 6) & 0x3F)); - dst.ptr[3] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); - return 4; - } + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__ya_nonpremul__src_over; + } + return NULL; } - - return 0; + return NULL; } -// wuffs_base__utf_8__byte_length_minus_1 is the byte length (minus 1) of a -// UTF-8 encoded code point, based on the encoding's initial byte. -// - 0x00 is 1-byte UTF-8 (ASCII). -// - 0x01 is the start of 2-byte UTF-8. -// - 0x02 is the start of 3-byte UTF-8. -// - 0x03 is the start of 4-byte UTF-8. -// - 0x40 is a UTF-8 tail byte. -// - 0x80 is invalid UTF-8. -// -// RFC 3629 (UTF-8) gives this grammar for valid UTF-8: -// UTF8-1 = %x00-7F -// UTF8-2 = %xC2-DF UTF8-tail -// UTF8-3 = %xE0 %xA0-BF UTF8-tail / %xE1-EC 2( UTF8-tail ) / -// %xED %x80-9F UTF8-tail / %xEE-EF 2( UTF8-tail ) -// UTF8-4 = %xF0 %x90-BF 2( UTF8-tail ) / %xF1-F3 3( UTF8-tail ) / -// %xF4 %x80-8F 2( UTF8-tail ) -// UTF8-tail = %x80-BF -static const uint8_t wuffs_base__utf_8__byte_length_minus_1[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x30 ..= 0x37. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. - - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x40 ..= 0x47. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x60 ..= 0x67. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. - - 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x80 ..= 0x87. - 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x88 ..= 0x8F. - 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x90 ..= 0x97. - 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x98 ..= 0x9F. - 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xA0 ..= 0xA7. - 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xA8 ..= 0xAF. - 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xB0 ..= 0xB7. - 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xB8 ..= 0xBF. +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_nonpremul( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; + } + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_1_1; + } + return NULL; - 0x80, 0x80, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xC0 ..= 0xC7. - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xC8 ..= 0xCF. - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xD0 ..= 0xD7. - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xD8 ..= 0xDF. - 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xE0 ..= 0xE7. - 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xE8 ..= 0xEF. - 0x03, 0x03, 0x03, 0x03, 0x03, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F -}; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + if (wuffs_private_impl__swizzle_squash_align4_bgr_565_8888( + dst_palette.ptr, dst_palette.len, src_palette.ptr, + src_palette.len, true) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + return wuffs_private_impl__swizzle_bgr_565__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; + } + return wuffs_private_impl__swizzle_bgr_565__index_bgra_nonpremul__src_over; + } + return NULL; -WUFFS_BASE__MAYBE_STATIC wuffs_base__utf_8__next__output // -wuffs_base__utf_8__next(const uint8_t* s_ptr, size_t s_len) { - if (s_len == 0) { - return wuffs_base__make_utf_8__next__output(0, 0); - } - uint32_t c = s_ptr[0]; - switch (wuffs_base__utf_8__byte_length_minus_1[c & 0xFF]) { - case 0: - return wuffs_base__make_utf_8__next__output(c, 1); + case WUFFS_BASE__PIXEL_FORMAT__BGR: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + if (wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + return wuffs_private_impl__swizzle_xxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; + } + return wuffs_private_impl__swizzle_xxx__index_bgra_nonpremul__src_over; + } + return NULL; - case 1: - if (s_len < 2) { - break; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; } - c = wuffs_base__peek_u16le__no_bounds_check(s_ptr); - if ((c & 0xC000) != 0x8000) { - break; + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__index_bgra_nonpremul__src_over; } - c = (0x0007C0 & (c << 6)) | (0x00003F & (c >> 8)); - return wuffs_base__make_utf_8__next__output(c, 2); + return NULL; - case 2: - if (s_len < 3) { - break; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; } - c = wuffs_base__peek_u24le__no_bounds_check(s_ptr); - if ((c & 0xC0C000) != 0x808000) { - break; + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxxxxxxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__index_bgra_nonpremul__src_over; } - c = (0x00F000 & (c << 12)) | (0x000FC0 & (c >> 2)) | - (0x00003F & (c >> 16)); - if ((c <= 0x07FF) || ((0xD800 <= c) && (c <= 0xDFFF))) { - break; + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + if (wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + return wuffs_private_impl__swizzle_xxxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; + } + return wuffs_private_impl__swizzle_bgra_premul__index_bgra_nonpremul__src_over; } - return wuffs_base__make_utf_8__next__output(c, 3); + return NULL; - case 3: - if (s_len < 4) { - break; + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + if (wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + return wuffs_private_impl__swizzle_xxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + if (wuffs_private_impl__swizzle_swap_rgbx_bgrx( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + return wuffs_private_impl__swizzle_xxx__index_bgra_nonpremul__src_over; } - c = wuffs_base__peek_u32le__no_bounds_check(s_ptr); - if ((c & 0xC0C0C000) != 0x80808000) { - break; + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + if (wuffs_private_impl__swizzle_swap_rgbx_bgrx( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; } - c = (0x1C0000 & (c << 18)) | (0x03F000 & (c << 4)) | - (0x000FC0 & (c >> 10)) | (0x00003F & (c >> 24)); - if ((c <= 0xFFFF) || (0x110000 <= c)) { - break; + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__index_bgra_nonpremul__src_over; } - return wuffs_base__make_utf_8__next__output(c, 4); - } + return NULL; - return wuffs_base__make_utf_8__next__output( - WUFFS_BASE__UNICODE_REPLACEMENT_CHARACTER, 1); -} + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + if (wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + return wuffs_private_impl__swizzle_xxxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + if (wuffs_private_impl__swizzle_swap_rgbx_bgrx( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + return wuffs_private_impl__swizzle_bgra_premul__index_bgra_nonpremul__src_over; + } + return NULL; -WUFFS_BASE__MAYBE_STATIC wuffs_base__utf_8__next__output // -wuffs_base__utf_8__next_from_end(const uint8_t* s_ptr, size_t s_len) { - if (s_len == 0) { - return wuffs_base__make_utf_8__next__output(0, 0); + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + // TODO. + break; } - const uint8_t* ptr = &s_ptr[s_len - 1]; - if (*ptr < 0x80) { - return wuffs_base__make_utf_8__next__output(*ptr, 1); + return NULL; +} - } else if (*ptr < 0xC0) { - const uint8_t* too_far = &s_ptr[(s_len > 4) ? (s_len - 4) : 0]; - uint32_t n = 1; - while (ptr != too_far) { - ptr--; - n++; - if (*ptr < 0x80) { - break; - } else if (*ptr < 0xC0) { - continue; +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_binary( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; } - wuffs_base__utf_8__next__output o = wuffs_base__utf_8__next(ptr, n); - if (o.byte_length != n) { - break; + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_1_1; } - return o; - } - } - - return wuffs_base__make_utf_8__next__output( - WUFFS_BASE__UNICODE_REPLACEMENT_CHARACTER, 1); -} + return NULL; -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__utf_8__longest_valid_prefix(const uint8_t* s_ptr, size_t s_len) { - // TODO: possibly optimize the all-ASCII case (4 or 8 bytes at a time). - // - // TODO: possibly optimize this by manually inlining the - // wuffs_base__utf_8__next calls. - size_t original_len = s_len; - while (s_len > 0) { - wuffs_base__utf_8__next__output o = wuffs_base__utf_8__next(s_ptr, s_len); - if ((o.code_point > 0x7F) && (o.byte_length == 1)) { - break; - } - s_ptr += o.byte_length; - s_len -= o.byte_length; - } - return original_len - s_len; -} + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + if (wuffs_private_impl__swizzle_squash_align4_bgr_565_8888( + dst_palette.ptr, dst_palette.len, src_palette.ptr, + src_palette.len, false) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__index_binary_alpha__src_over; + } + return NULL; -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__ascii__longest_valid_prefix(const uint8_t* s_ptr, size_t s_len) { - // TODO: possibly optimize this by checking 4 or 8 bytes at a time. - const uint8_t* original_ptr = s_ptr; - const uint8_t* p = s_ptr; - const uint8_t* q = s_ptr + s_len; - for (; (p != q) && ((*p & 0x80) == 0); p++) { - } - return (size_t)(p - original_ptr); -} + case WUFFS_BASE__PIXEL_FORMAT__BGR: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; + } + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_xxx__index_binary_alpha__src_over; + } + return NULL; -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__UTF8) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; + } + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_xxxx__index_binary_alpha__src_over; + } + return NULL; -#ifdef __cplusplus -} // extern "C" -#endif + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; + } + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxxxxxxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_xxxxxxxx__index_binary_alpha__src_over; + } + return NULL; -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ADLER32) + case WUFFS_BASE__PIXEL_FORMAT__RGB: + if (wuffs_private_impl__swizzle_swap_rgbx_bgrx( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_xxx__index_binary_alpha__src_over; + } + return NULL; -// ---------------- Status Codes Implementations + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + if (wuffs_private_impl__swizzle_swap_rgbx_bgrx( + dst_palette.ptr, dst_palette.len, NULL, 0, src_palette.ptr, + src_palette.len) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxxx__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_xxxx__index_binary_alpha__src_over; + } + return NULL; + } + return NULL; +} -// ---------------- Private Consts +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__bgr_565( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + return wuffs_private_impl__swizzle_copy_2_2; -// ---------------- Private Initializer Prototypes + case WUFFS_BASE__PIXEL_FORMAT__BGR: + return wuffs_private_impl__swizzle_bgr__bgr_565; -// ---------------- Private Function Prototypes + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + return wuffs_private_impl__swizzle_bgrw__bgr_565; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_adler32__hasher__up( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: + return wuffs_private_impl__swizzle_bgrw_4x16le__bgr_565; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_adler32__hasher__up__choosy_default( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x); + case WUFFS_BASE__PIXEL_FORMAT__RGB: + return wuffs_private_impl__swizzle_rgb__bgr_565; -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_adler32__hasher__up_arm_neon( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + return wuffs_private_impl__swizzle_rgbw__bgr_565; + } + return NULL; +} -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_adler32__hasher__up_x86_sse42( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__bgr( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + return wuffs_private_impl__swizzle_bgr_565__bgr; -// ---------------- VTables + case WUFFS_BASE__PIXEL_FORMAT__BGR: + return wuffs_private_impl__swizzle_copy_3_3; -const wuffs_base__hasher_u32__func_ptrs -wuffs_adler32__hasher__func_ptrs_for__wuffs_base__hasher_u32 = { - (uint32_t(*)(const void*))(&wuffs_adler32__hasher__checksum_u32), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_adler32__hasher__get_quirk), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_adler32__hasher__set_quirk), - (wuffs_base__empty_struct(*)(void*, - wuffs_base__slice_u8))(&wuffs_adler32__hasher__update), - (uint32_t(*)(void*, - wuffs_base__slice_u8))(&wuffs_adler32__hasher__update_u32), -}; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_bgrw__bgr__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_bgrw__bgr; -// ---------------- Initializer Implementations + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE: + return wuffs_private_impl__swizzle_bgrw_4x16le__bgr; -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_adler32__hasher__initialize( - wuffs_adler32__hasher* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } + case WUFFS_BASE__PIXEL_FORMAT__RGB: + return wuffs_private_impl__swizzle_swap_rgb_bgr; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42; + } #endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); - } + return wuffs_private_impl__swizzle_bgrw__rgb; } + return NULL; +} - self->private_impl.choosy_up = &wuffs_adler32__hasher__up__choosy_default; +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__bgra_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__bgra_nonpremul__src_over; + } + return NULL; - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__hasher_u32.vtable_name = - wuffs_base__hasher_u32__vtable_name; - self->private_impl.vtable_for__wuffs_base__hasher_u32.function_pointers = - (const void*)(&wuffs_adler32__hasher__func_ptrs_for__wuffs_base__hasher_u32); - return wuffs_base__make_status(NULL); -} + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src_over; + } + return NULL; -wuffs_adler32__hasher* -wuffs_adler32__hasher__alloc(void) { - wuffs_adler32__hasher* x = - (wuffs_adler32__hasher*)(calloc(sizeof(wuffs_adler32__hasher), 1)); - if (!x) { - return NULL; - } - if (wuffs_adler32__hasher__initialize( - x, sizeof(wuffs_adler32__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} + case WUFFS_BASE__PIXEL_FORMAT__BGR: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src_over; + } + return NULL; -size_t -sizeof__wuffs_adler32__hasher(void) { - return sizeof(wuffs_adler32__hasher); -} + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_4_4; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul__src_over; + } + return NULL; -// ---------------- Function Implementations + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul__src_over; + } + return NULL; -// -------- func adler32.hasher.get_quirk + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_adler32__hasher__get_quirk( - const wuffs_adler32__hasher* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + // TODO. + break; - return 0u; -} + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src_over; + } + return NULL; -// -------- func adler32.hasher.set_quirk + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_swap_rgbx_bgrx; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__rgba_nonpremul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_adler32__hasher__set_quirk( - wuffs_adler32__hasher* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src_over; + } + return NULL; - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + // TODO. + break; + } + return NULL; } -// -------- func adler32.hasher.update +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul_4x16le( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_adler32__hasher__update( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } + case WUFFS_BASE__PIXEL_FORMAT__BGR: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src_over; + } + return NULL; - if ( ! self->private_impl.f_started) { - self->private_impl.f_started = true; - self->private_impl.f_state = 1u; - self->private_impl.choosy_up = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_adler32__hasher__up_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_adler32__hasher__up_x86_sse42 : -#endif - self->private_impl.choosy_up); - } - wuffs_adler32__hasher__up(self, a_x); - return wuffs_base__make_empty_struct(); -} + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src_over; + } + return NULL; -// -------- func adler32.hasher.update_u32 + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_8_8; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul_4x16le__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_adler32__hasher__update_u32( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return 0; - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; - } + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src_over; + } + return NULL; - wuffs_adler32__hasher__update(self, a_x); - return self->private_impl.f_state; -} + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + // TODO. + break; -// -------- func adler32.hasher.up + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_adler32__hasher__up( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x) { - return (*self->private_impl.choosy_up)(self, a_x); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_rgba_nonpremul__bgra_nonpremul_4x16le__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_rgba_nonpremul__bgra_nonpremul_4x16le__src_over; + } + break; + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + // TODO. + break; + } + return NULL; } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_adler32__hasher__up__choosy_default( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x) { - uint32_t v_s1 = 0; - uint32_t v_s2 = 0; - wuffs_base__slice_u8 v_remaining = {0}; - wuffs_base__slice_u8 v_p = {0}; - - v_s1 = ((self->private_impl.f_state) & 0xFFFFu); - v_s2 = ((self->private_impl.f_state) >> (32u - 16u)); - while (((uint64_t)(a_x.len)) > 0u) { - v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0u); - if (((uint64_t)(a_x.len)) > 5552u) { - v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 5552u); - a_x = wuffs_base__slice_u8__subslice_j(a_x, 5552u); - } - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8); - while (v_p.ptr < i_end0_p) { - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - } - v_p.len = 1; - uint8_t* i_end1_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end1_p) { - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__bgra_premul( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__bgra_premul__src_over; } - v_p.len = 0; - } - v_s1 %= 65521u; - v_s2 %= 65521u; - a_x = v_remaining; - } - self->private_impl.f_state = (((v_s2 & 65535u) << 16u) | (v_s1 & 65535u)); - return wuffs_base__make_empty_struct(); -} - -// -------- func adler32.hasher.checksum_u32 - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_adler32__hasher__checksum_u32( - const wuffs_adler32__hasher* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return self->private_impl.f_state; -} - -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func adler32.hasher.up_arm_neon + return NULL; -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_adler32__hasher__up_arm_neon( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x) { - uint32_t v_s1 = 0; - uint32_t v_s2 = 0; - wuffs_base__slice_u8 v_remaining = {0}; - wuffs_base__slice_u8 v_p = {0}; - uint8x16_t v_p__left = {0}; - uint8x16_t v_p_right = {0}; - uint32x4_t v_v1 = {0}; - uint32x4_t v_v2 = {0}; - uint16x8_t v_col0 = {0}; - uint16x8_t v_col1 = {0}; - uint16x8_t v_col2 = {0}; - uint16x8_t v_col3 = {0}; - uint32x2_t v_sum1 = {0}; - uint32x2_t v_sum2 = {0}; - uint32x2_t v_sum12 = {0}; - uint32_t v_num_iterate_bytes = 0; - uint64_t v_tail_index = 0; + case WUFFS_BASE__PIXEL_FORMAT__BGR: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__bgra_premul__src_over; + } + return NULL; - v_s1 = ((self->private_impl.f_state) & 0xFFFFu); - v_s2 = ((self->private_impl.f_state) >> (32u - 16u)); - while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { - v_s1 += ((uint32_t)(a_x.ptr[0u])); - v_s2 += v_s1; - a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); - } - v_s1 %= 65521u; - v_s2 %= 65521u; - while (((uint64_t)(a_x.len)) > 0u) { - v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0u); - if (((uint64_t)(a_x.len)) > 5536u) { - v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 5536u); - a_x = wuffs_base__slice_u8__subslice_j(a_x, 5536u); - } - v_num_iterate_bytes = ((uint32_t)((((uint64_t)(a_x.len)) & 4294967264u))); - v_s2 += ((uint32_t)(v_s1 * v_num_iterate_bytes)); - v_v1 = vdupq_n_u32(0u); - v_v2 = vdupq_n_u32(0u); - v_col0 = vdupq_n_u16(0u); - v_col1 = vdupq_n_u16(0u); - v_col2 = vdupq_n_u16(0u); - v_col3 = vdupq_n_u16(0u); - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 32; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32); - while (v_p.ptr < i_end0_p) { - v_p__left = vld1q_u8(v_p.ptr); - v_p_right = vld1q_u8(v_p.ptr + 16u); - v_v2 = vaddq_u32(v_v2, v_v1); - v_v1 = vpadalq_u16(v_v1, vpadalq_u8(vpaddlq_u8(v_p__left), v_p_right)); - v_col0 = vaddw_u8(v_col0, vget_low_u8(v_p__left)); - v_col1 = vaddw_u8(v_col1, vget_high_u8(v_p__left)); - v_col2 = vaddw_u8(v_col2, vget_low_u8(v_p_right)); - v_col3 = vaddw_u8(v_col3, vget_high_u8(v_p_right)); - v_p.ptr += 32; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src_over; } - v_p.len = 0; - } - v_v2 = vshlq_n_u32(v_v2, 5u); - v_v2 = vmlal_u16(v_v2, vget_low_u16(v_col0), ((uint16x4_t){32u, 31u, 30u, 29u})); - v_v2 = vmlal_u16(v_v2, vget_high_u16(v_col0), ((uint16x4_t){28u, 27u, 26u, 25u})); - v_v2 = vmlal_u16(v_v2, vget_low_u16(v_col1), ((uint16x4_t){24u, 23u, 22u, 21u})); - v_v2 = vmlal_u16(v_v2, vget_high_u16(v_col1), ((uint16x4_t){20u, 19u, 18u, 17u})); - v_v2 = vmlal_u16(v_v2, vget_low_u16(v_col2), ((uint16x4_t){16u, 15u, 14u, 13u})); - v_v2 = vmlal_u16(v_v2, vget_high_u16(v_col2), ((uint16x4_t){12u, 11u, 10u, 9u})); - v_v2 = vmlal_u16(v_v2, vget_low_u16(v_col3), ((uint16x4_t){8u, 7u, 6u, 5u})); - v_v2 = vmlal_u16(v_v2, vget_high_u16(v_col3), ((uint16x4_t){4u, 3u, 2u, 1u})); - v_sum1 = vpadd_u32(vget_low_u32(v_v1), vget_high_u32(v_v1)); - v_sum2 = vpadd_u32(vget_low_u32(v_v2), vget_high_u32(v_v2)); - v_sum12 = vpadd_u32(v_sum1, v_sum2); - v_s1 += vget_lane_u32(v_sum12, 0u); - v_s2 += vget_lane_u32(v_sum12, 1u); - v_tail_index = (((uint64_t)(a_x.len)) & 18446744073709551584u); - if (v_tail_index < ((uint64_t)(a_x.len))) { - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - } - v_p.len = 0; + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src_over; } - } - v_s1 %= 65521u; - v_s2 %= 65521u; - a_x = v_remaining; - } - self->private_impl.f_state = (((v_s2 & 65535u) << 16u) | (v_s1 & 65535u)); - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon + return NULL; -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func adler32.hasher.up_x86_sse42 + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_4_4; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__bgra_premul__src_over; + } + return NULL; -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_adler32__hasher__up_x86_sse42( - wuffs_adler32__hasher* self, - wuffs_base__slice_u8 a_x) { - uint32_t v_s1 = 0; - uint32_t v_s2 = 0; - wuffs_base__slice_u8 v_remaining = {0}; - wuffs_base__slice_u8 v_p = {0}; - __m128i v_zeroes = {0}; - __m128i v_ones = {0}; - __m128i v_weights__left = {0}; - __m128i v_weights_right = {0}; - __m128i v_q__left = {0}; - __m128i v_q_right = {0}; - __m128i v_v1 = {0}; - __m128i v_v2 = {0}; - __m128i v_v2j = {0}; - __m128i v_v2k = {0}; - uint32_t v_num_iterate_bytes = 0; - uint64_t v_tail_index = 0; + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__rgba_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__rgba_premul__src_over; + } + return NULL; - v_zeroes = _mm_set1_epi16((int16_t)(0u)); - v_ones = _mm_set1_epi16((int16_t)(1u)); - v_weights__left = _mm_set_epi8((int8_t)(17u), (int8_t)(18u), (int8_t)(19u), (int8_t)(20u), (int8_t)(21u), (int8_t)(22u), (int8_t)(23u), (int8_t)(24u), (int8_t)(25u), (int8_t)(26u), (int8_t)(27u), (int8_t)(28u), (int8_t)(29u), (int8_t)(30u), (int8_t)(31u), (int8_t)(32u)); - v_weights_right = _mm_set_epi8((int8_t)(1u), (int8_t)(2u), (int8_t)(3u), (int8_t)(4u), (int8_t)(5u), (int8_t)(6u), (int8_t)(7u), (int8_t)(8u), (int8_t)(9u), (int8_t)(10u), (int8_t)(11u), (int8_t)(12u), (int8_t)(13u), (int8_t)(14u), (int8_t)(15u), (int8_t)(16u)); - v_s1 = ((self->private_impl.f_state) & 0xFFFFu); - v_s2 = ((self->private_impl.f_state) >> (32u - 16u)); - while (((uint64_t)(a_x.len)) > 0u) { - v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0u); - if (((uint64_t)(a_x.len)) > 5536u) { - v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 5536u); - a_x = wuffs_base__slice_u8__subslice_j(a_x, 5536u); - } - v_num_iterate_bytes = ((uint32_t)((((uint64_t)(a_x.len)) & 4294967264u))); - v_s2 += ((uint32_t)(v_s1 * v_num_iterate_bytes)); - v_v1 = _mm_setzero_si128(); - v_v2j = _mm_setzero_si128(); - v_v2k = _mm_setzero_si128(); - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 32; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32); - while (v_p.ptr < i_end0_p) { - v_q__left = _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr)); - v_q_right = _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 16u)); - v_v2j = _mm_add_epi32(v_v2j, v_v1); - v_v1 = _mm_add_epi32(v_v1, _mm_sad_epu8(v_q__left, v_zeroes)); - v_v1 = _mm_add_epi32(v_v1, _mm_sad_epu8(v_q_right, v_zeroes)); - v_v2k = _mm_add_epi32(v_v2k, _mm_madd_epi16(v_ones, _mm_maddubs_epi16(v_q__left, v_weights__left))); - v_v2k = _mm_add_epi32(v_v2k, _mm_madd_epi16(v_ones, _mm_maddubs_epi16(v_q_right, v_weights_right))); - v_p.ptr += 32; + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src_over; } - v_p.len = 0; - } - v_v1 = _mm_add_epi32(v_v1, _mm_shuffle_epi32(v_v1, (int32_t)(177u))); - v_v1 = _mm_add_epi32(v_v1, _mm_shuffle_epi32(v_v1, (int32_t)(78u))); - v_s1 += ((uint32_t)(_mm_cvtsi128_si32(v_v1))); - v_v2 = _mm_add_epi32(v_v2k, _mm_slli_epi32(v_v2j, (int32_t)(5u))); - v_v2 = _mm_add_epi32(v_v2, _mm_shuffle_epi32(v_v2, (int32_t)(177u))); - v_v2 = _mm_add_epi32(v_v2, _mm_shuffle_epi32(v_v2, (int32_t)(78u))); - v_s2 += ((uint32_t)(_mm_cvtsi128_si32(v_v2))); - v_tail_index = (((uint64_t)(a_x.len)) & 18446744073709551584u); - if (v_tail_index < ((uint64_t)(a_x.len))) { - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s1 += ((uint32_t)(v_p.ptr[0u])); - v_s2 += v_s1; - v_p.ptr += 1; - } - v_p.len = 0; + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_swap_rgbx_bgrx; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__rgba_premul__src_over; } - } - v_s1 %= 65521u; - v_s2 %= 65521u; - a_x = v_remaining; + return NULL; } - self->private_impl.f_state = (((v_s2 & 65535u) << 16u) | (v_s1 & 65535u)); - return wuffs_base__make_empty_struct(); + return NULL; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ADLER32) +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__bgrx( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + return wuffs_private_impl__swizzle_y__bgrx; -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BMP) + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + return wuffs_private_impl__swizzle_bgr_565__bgrx; -// ---------------- Status Codes Implementations + case WUFFS_BASE__PIXEL_FORMAT__BGR: + return wuffs_private_impl__swizzle_xxx__xxxx; -const char wuffs_bmp__error__bad_header[] = "#bmp: bad header"; -const char wuffs_bmp__error__bad_rle_compression[] = "#bmp: bad RLE compression"; -const char wuffs_bmp__error__truncated_input[] = "#bmp: truncated input"; -const char wuffs_bmp__error__unsupported_bmp_file[] = "#bmp: unsupported BMP file"; -const char wuffs_bmp__note__internal_note_short_read[] = "@bmp: internal note: short read"; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + return wuffs_private_impl__swizzle_bgrw__bgrx; -// ---------------- Private Consts + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + return wuffs_private_impl__swizzle_bgrw_4x16le__bgrx; -#define WUFFS_BMP__COMPRESSION_NONE 0 + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + return wuffs_private_impl__swizzle_copy_4_4; -#define WUFFS_BMP__COMPRESSION_RLE8 1 + case WUFFS_BASE__PIXEL_FORMAT__RGB: + return wuffs_private_impl__swizzle_bgr__rgbx; -#define WUFFS_BMP__COMPRESSION_RLE4 2 + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + return wuffs_private_impl__swizzle_bgrw__rgbx; + } + return NULL; +} -#define WUFFS_BMP__COMPRESSION_BITFIELDS 3 +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__rgb( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + return wuffs_private_impl__swizzle_bgr_565__rgb; -#define WUFFS_BMP__COMPRESSION_JPEG 4 + case WUFFS_BASE__PIXEL_FORMAT__BGR: + return wuffs_private_impl__swizzle_swap_rgb_bgr; -#define WUFFS_BMP__COMPRESSION_PNG 5 + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_bgrw__rgb; -#define WUFFS_BMP__COMPRESSION_ALPHABITFIELDS 6 + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + return wuffs_private_impl__swizzle_bgrw_4x16le__rgb; -#define WUFFS_BMP__COMPRESSION_LOW_BIT_DEPTH 256 + case WUFFS_BASE__PIXEL_FORMAT__RGB: + return wuffs_private_impl__swizzle_copy_3_3; -#define WUFFS_BMP__RLE_STATE_NEUTRAL 0 + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_bgrw__bgr__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_bgrw__bgr; + } + return NULL; +} -#define WUFFS_BMP__RLE_STATE_RUN 1 +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__rgba_nonpremul( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src_over; + } + return NULL; -#define WUFFS_BMP__RLE_STATE_ESCAPE 2 + case WUFFS_BASE__PIXEL_FORMAT__BGR: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src_over; + } + return NULL; -#define WUFFS_BMP__RLE_STATE_LITERAL 3 + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_swap_rgbx_bgrx; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__rgba_nonpremul__src_over; + } + return NULL; -#define WUFFS_BMP__RLE_STATE_DELTA_X 4 + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_nonpremul__src_over; + } + return NULL; -#define WUFFS_BMP__RLE_STATE_DELTA_Y 5 + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src_over; + } + return NULL; -// ---------------- Private Initializer Prototypes + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + // TODO. + break; -// ---------------- Private Function Prototypes + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__do_decode_image_config( - wuffs_bmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_4_4; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__do_decode_frame_config( - wuffs_bmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__do_decode_frame( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + // TODO. + break; + } + return NULL; +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__swizzle_none( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src); +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__rgba_premul( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__rgba_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__rgba_premul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__swizzle_rle( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src); + case WUFFS_BASE__PIXEL_FORMAT__BGR: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__rgba_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__rgba_premul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__swizzle_bitfields( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__swizzle_low_bit_depth( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__do_tell_me_more( - wuffs_bmp__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_premul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__read_palette( - wuffs_bmp__decoder* self, - wuffs_base__io_buffer* a_src); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_swap_rgbx_bgrx; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__rgba_premul__src_over; + } + return NULL; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__process_masks( - wuffs_bmp__decoder* self); + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__bgra_premul__src_over; + } + return NULL; -// ---------------- VTables + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src_over; + } + return NULL; -const wuffs_base__image_decoder__func_ptrs -wuffs_bmp__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_bmp__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_bmp__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_bmp__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_bmp__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_bmp__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_bmp__decoder__history_retain_length), - (uint32_t(*)(const void*))(&wuffs_bmp__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_bmp__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_bmp__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_bmp__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_bmp__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_bmp__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_bmp__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_bmp__decoder__workbuf_len), -}; + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_4_4; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__bgra_premul__src_over; + } + return NULL; + } + return NULL; +} -// ---------------- Initializer Implementations +// -------- -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_bmp__decoder__initialize( - wuffs_bmp__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__status // +wuffs_base__pixel_swizzler__prepare(wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__pixel_format src_pixfmt, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + if (!p) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } + p->private_impl.func = NULL; + p->private_impl.transparent_black_func = NULL; + p->private_impl.dst_pixfmt_bytes_per_pixel = 0; + p->private_impl.src_pixfmt_bytes_per_pixel = 0; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" + // ---- + +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) + switch (dst_pixfmt.repr) { +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGR_565) + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + break; #endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGR) + case WUFFS_BASE__PIXEL_FORMAT__BGR: + break; #endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); - } +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_NONPREMUL) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_NONPREMUL_4X16LE) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_PREMUL) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGB) + case WUFFS_BASE__PIXEL_FORMAT__RGB: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGBA_NONPREMUL) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGBA_PREMUL) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + break; +#endif + default: + return wuffs_base__make_status( + wuffs_base__error__disabled_by_wuffs_config_dst_pixel_format_enable_allowlist); } +#endif // defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_bmp__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); -} + // ---- -wuffs_bmp__decoder* -wuffs_bmp__decoder__alloc(void) { - wuffs_bmp__decoder* x = - (wuffs_bmp__decoder*)(calloc(sizeof(wuffs_bmp__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_bmp__decoder__initialize( - x, sizeof(wuffs_bmp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + wuffs_base__pixel_swizzler__func func = NULL; + wuffs_base__pixel_swizzler__transparent_black_func transparent_black_func = + NULL; + + uint32_t dst_pixfmt_bits_per_pixel = + wuffs_base__pixel_format__bits_per_pixel(&dst_pixfmt); + if ((dst_pixfmt_bits_per_pixel == 0) || + ((dst_pixfmt_bits_per_pixel & 7) != 0)) { + return wuffs_base__make_status( + wuffs_base__error__unsupported_pixel_swizzler_option); } - return x; -} -size_t -sizeof__wuffs_bmp__decoder(void) { - return sizeof(wuffs_bmp__decoder); -} + uint32_t src_pixfmt_bits_per_pixel = + wuffs_base__pixel_format__bits_per_pixel(&src_pixfmt); + if ((src_pixfmt_bits_per_pixel == 0) || + ((src_pixfmt_bits_per_pixel & 7) != 0)) { + return wuffs_base__make_status( + wuffs_base__error__unsupported_pixel_swizzler_option); + } -// ---------------- Function Implementations + // TODO: support many more formats. -// -------- func bmp.decoder.get_quirk + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + transparent_black_func = + wuffs_private_impl__swizzle_transparent_black_src; + break; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_bmp__decoder__get_quirk( - const wuffs_bmp__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + transparent_black_func = + wuffs_private_impl__swizzle_transparent_black_src_over; + break; } - return 0u; -} + switch (src_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + func = wuffs_private_impl__pixel_swizzler__prepare__y( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; -// -------- func bmp.decoder.set_quirk + case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: + func = wuffs_private_impl__pixel_swizzler__prepare__y_16be( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_bmp__decoder__set_quirk( - wuffs_bmp__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + func = wuffs_private_impl__pixel_swizzler__prepare__ya_nonpremul( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: + func = + wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_nonpremul( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: + func = wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_binary( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + func = wuffs_private_impl__pixel_swizzler__prepare__bgr_565( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__BGR: + func = wuffs_private_impl__pixel_swizzler__prepare__bgr( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + func = wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + func = wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul_4x16le( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + func = wuffs_private_impl__pixel_swizzler__prepare__bgra_premul( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + func = wuffs_private_impl__pixel_swizzler__prepare__bgrx( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__RGB: + func = wuffs_private_impl__pixel_swizzler__prepare__rgb( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + func = wuffs_private_impl__pixel_swizzler__prepare__rgba_nonpremul( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + func = wuffs_private_impl__pixel_swizzler__prepare__rgba_premul( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + p->private_impl.func = func; + p->private_impl.transparent_black_func = transparent_black_func; + p->private_impl.dst_pixfmt_bytes_per_pixel = dst_pixfmt_bits_per_pixel / 8; + p->private_impl.src_pixfmt_bytes_per_pixel = src_pixfmt_bits_per_pixel / 8; + return wuffs_base__make_status( + func ? NULL : wuffs_base__error__unsupported_pixel_swizzler_option); } -// -------- func bmp.decoder.decode_image_config - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_bmp__decoder__decode_image_config( - wuffs_bmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( + const wuffs_base__pixel_swizzler* p, + uint32_t up_to_num_pixels, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + const uint8_t** ptr_iop_r, + const uint8_t* io2_r) { + if (p && p->private_impl.func) { + const uint8_t* iop_r = *ptr_iop_r; + uint64_t src_len = wuffs_base__u64__min( + ((uint64_t)up_to_num_pixels) * + ((uint64_t)p->private_impl.src_pixfmt_bytes_per_pixel), + ((uint64_t)(io2_r - iop_r))); + uint64_t n = + (*p->private_impl.func)(dst.ptr, dst.len, dst_palette.ptr, + dst_palette.len, iop_r, (size_t)src_len); + *ptr_iop_r += n * p->private_impl.src_pixfmt_bytes_per_pixel; + return n; } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + return 0; +} + +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( + const wuffs_base__pixel_swizzler* p, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + const uint8_t** ptr_iop_r, + const uint8_t* io2_r) { + if (p && p->private_impl.func) { + const uint8_t* iop_r = *ptr_iop_r; + uint64_t src_len = ((uint64_t)(io2_r - iop_r)); + uint64_t n = + (*p->private_impl.func)(dst.ptr, dst.len, dst_palette.ptr, + dst_palette.len, iop_r, (size_t)src_len); + *ptr_iop_r += n * p->private_impl.src_pixfmt_bytes_per_pixel; + return n; } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); + return 0; +} + +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice( + const wuffs_base__pixel_swizzler* p, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src) { + if (p && p->private_impl.func) { + return (*p->private_impl.func)(dst.ptr, dst.len, dst_palette.ptr, + dst_palette.len, src.ptr, src.len); } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + return 0; +} + +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black( + const wuffs_base__pixel_swizzler* p, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + uint64_t num_pixels) { + if (p && p->private_impl.transparent_black_func) { + return (*p->private_impl.transparent_black_func)( + dst.ptr, dst.len, dst_palette.ptr, dst_palette.len, num_pixels, + p->private_impl.dst_pixfmt_bytes_per_pixel); } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); + return 0; +} - wuffs_base__status v_status = wuffs_base__make_status(NULL); +// -------- - uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") +static void // +wuffs_private_impl__swizzle_ycc__convert_3_bgrx_x86_avx2( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2); - while (true) { - { - wuffs_base__status t_0 = wuffs_bmp__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_bmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") +static void // +wuffs_private_impl__swizzle_ycc__convert_3_rgbx_x86_avx2( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2); - ok: - self->private_impl.p_decode_image_config[0] = 0; - goto exit; - } +#if defined(__GNUC__) && !defined(__clang__) +// No-op. +#else +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h2v2_triangle_x86_avx2( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor, + size_t src_len, + uint32_t h1v2_bias_ignored, + bool first_column, + bool last_column); +#endif +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) - goto suspend; - suspend: - self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; +// -------- - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; +static inline uint32_t // +wuffs_private_impl__u32__max_of_4(uint32_t a, + uint32_t b, + uint32_t c, + uint32_t d) { + return wuffs_base__u32__max( // + wuffs_base__u32__max(a, b), // + wuffs_base__u32__max(c, d)); } -// -------- func bmp.decoder.do_decode_image_config +static inline uint32_t // +wuffs_private_impl__u32__min_of_5(uint32_t a, + uint32_t b, + uint32_t c, + uint32_t d, + uint32_t e) { + return wuffs_base__u32__min( // + wuffs_base__u32__min( // + wuffs_base__u32__min(a, b), // + wuffs_base__u32__min(c, d)), // + e); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__do_decode_image_config( - wuffs_bmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +// -------- - uint32_t v_magic = 0; - uint32_t v_width = 0; - uint32_t v_height = 0; - uint32_t v_planes = 0; - uint32_t v_dst_pixfmt = 0; - uint32_t v_byte_width = 0; +typedef void (*wuffs_private_impl__swizzle_ycc__convert_4_func)( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2, + const uint8_t* up3); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +static void // +wuffs_private_impl__swizzle_cmyk__convert_4_general( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2, + const uint8_t* up3) { + for (; x < x_end; x++) { + // It's called CMYK but, but for Adobe CMYK JPEG images in practice, it's + // RGBW: 0xFFu means no ink instead of full ink. Note that a double + // inversion is a no-op, so inversions might be implicit in the code below. + uint32_t r = ((uint32_t)(*up0++)); + uint32_t g = ((uint32_t)(*up1++)); + uint32_t b = ((uint32_t)(*up2++)); + uint32_t w = ((uint32_t)(*up3++)); + r = ((r * w) + 0x7Fu) / 0xFFu; + g = ((g * w) + 0x7Fu) / 0xFFu; + b = ((b * w) + 0x7Fu) / 0xFFu; + wuffs_base__pixel_buffer__set_color_u32_at( + dst, x, y, 0xFF000000u | (r << 16u) | (g << 8u) | (b << 0u)); } +} - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +static void // +wuffs_private_impl__swizzle_ycck__convert_4_general( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2, + const uint8_t* up3) { + for (; x < x_end; x++) { + // We invert once again: 0xFFu means no ink instead of full ink. + uint32_t color = // + wuffs_base__color_ycc__as__color_u32( // + *up0++, *up1++, *up2++); + uint32_t r = 0xFFu - (0xFFu & (color >> 16u)); + uint32_t g = 0xFFu - (0xFFu & (color >> 8u)); + uint32_t b = 0xFFu - (0xFFu & (color >> 0u)); + uint32_t w = ((uint32_t)(*up3++)); + r = ((r * w) + 0x7Fu) / 0xFFu; + g = ((g * w) + 0x7Fu) / 0xFFu; + b = ((b * w) + 0x7Fu) / 0xFFu; + wuffs_base__pixel_buffer__set_color_u32_at( + dst, x, y, 0xFF000000u | (r << 16u) | (g << 8u) | (b << 0u)); + } +} - if ((self->private_impl.f_call_sequence != 0u) || (self->private_impl.f_io_redirect_fourcc == 1u)) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if (self->private_impl.f_io_redirect_fourcc != 0u) { - status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); - goto ok; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_0 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 8) { - t_0 = ((uint32_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; - } - } - v_magic = t_0; - } - if (v_magic != 19778u) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; - } - self->private_data.s_do_decode_image_config[0].scratch = 8u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (self->private_data.s_do_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; +// -------- + +typedef void (*wuffs_private_impl__swizzle_ycc__convert_3_func)( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2); + +static void // +wuffs_private_impl__swizzle_rgb__convert_3_general( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2) { + for (; x < x_end; x++) { + uint32_t color = 0xFF000000u | // + (((uint32_t)(*up0++)) << 16u) | // + (((uint32_t)(*up1++)) << 8u) | // + (((uint32_t)(*up2++)) << 0u); + wuffs_base__pixel_buffer__set_color_u32_at(dst, x, y, color); + } +} + +static void // +wuffs_private_impl__swizzle_ycc__convert_3_general( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2) { + for (; x < x_end; x++) { + uint32_t color = // + wuffs_base__color_ycc__as__color_u32( // + *up0++, *up1++, *up2++); + wuffs_base__pixel_buffer__set_color_u32_at(dst, x, y, color); + } +} + +static void // +wuffs_private_impl__swizzle_ycc__convert_3_bgrx(wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2) { + size_t dst_stride = dst->private_impl.planes[0].stride; + uint8_t* dst_iter = dst->private_impl.planes[0].ptr + + (dst_stride * ((size_t)y)) + (4u * ((size_t)x)); + + for (; x < x_end; x++) { + uint32_t color = // + wuffs_base__color_ycc__as__color_u32( // + *up0++, *up1++, *up2++); + wuffs_base__poke_u32le__no_bounds_check(dst_iter, color); + dst_iter += 4u; + } +} + +static void // +wuffs_private_impl__swizzle_ycc__convert_3_rgbx(wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2) { + size_t dst_stride = dst->private_impl.planes[0].stride; + uint8_t* dst_iter = dst->private_impl.planes[0].ptr + + (dst_stride * ((size_t)y)) + (4u * ((size_t)x)); + + for (; x < x_end; x++) { + uint32_t color = // + wuffs_base__color_ycc__as__color_u32_abgr( // + *up0++, *up1++, *up2++); + wuffs_base__poke_u32le__no_bounds_check(dst_iter, color); + dst_iter += 4u; + } +} + +// -------- + +// wuffs_private_impl__swizzle_ycc__upsample_func upsamples to a destination +// slice at least 480 (YCCK) or 672 (YCC) bytes long and whose src_len +// (multiplied by 1, 2, 3 or 4) is positive but no more than that. This 480 or +// 672 length is just under 1/4 or 1/3 of the scratch_buffer_2k slice length. +// Both (480 * 4) = 1920 and (672 * 3) = 2016 are less than 2048. +// +// 480 and 672 are nice round numbers because a JPEG MCU is 1, 2, 3 or 4 blocks +// wide and each block is 8 pixels wide. We have: +// 480 = 1 * 8 * 60, 672 = 1 * 8 * 84 +// 480 = 2 * 8 * 30, 672 = 2 * 8 * 42 +// 480 = 3 * 8 * 20, 672 = 3 * 8 * 28 +// 480 = 4 * 8 * 15, 672 = 4 * 8 * 21 +// +// Box filters are equivalent to nearest neighbor upsampling. These ignore the +// src_ptr_minor, h1v2_bias, first_column and last_column arguments. +// +// Triangle filters use a 3:1 ratio (in 1 dimension), or 9:3:3:1 (in 2 +// dimensions), which is higher quality (less blocky) but also higher +// computational effort. +// +// In theory, we could use triangle filters for any (inv_h, inv_v) combination. +// In practice, matching libjpeg-turbo, we only implement it for the common +// chroma subsampling ratios (YCC420, YCC422 or YCC440), corresponding to an +// (inv_h, inv_v) pair of (2, 2), (2, 1) or (1, 2). +typedef const uint8_t* (*wuffs_private_impl__swizzle_ycc__upsample_func)( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, // Nearest row. + const uint8_t* src_ptr_minor, // Adjacent row, alternating above or below. + size_t src_len, + uint32_t h1v2_bias, + bool first_column, + bool last_column); + +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h1vn_box( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor_ignored, + size_t src_len, + uint32_t h1v2_bias_ignored, + bool first_column_ignored, + bool last_column_ignored) { + return src_ptr_major; +} + +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h2vn_box( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor_ignored, + size_t src_len, + uint32_t h1v2_bias_ignored, + bool first_column_ignored, + bool last_column_ignored) { + uint8_t* dp = dst_ptr; + const uint8_t* sp = src_ptr_major; + while (src_len--) { + uint8_t sv = *sp++; + *dp++ = sv; + *dp++ = sv; + } + return dst_ptr; +} + +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h3vn_box( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor_ignored, + size_t src_len, + uint32_t h1v2_bias_ignored, + bool first_column_ignored, + bool last_column_ignored) { + uint8_t* dp = dst_ptr; + const uint8_t* sp = src_ptr_major; + while (src_len--) { + uint8_t sv = *sp++; + *dp++ = sv; + *dp++ = sv; + *dp++ = sv; + } + return dst_ptr; +} + +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h4vn_box( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor_ignored, + size_t src_len, + uint32_t h1v2_bias_ignored, + bool first_column_ignored, + bool last_column_ignored) { + uint8_t* dp = dst_ptr; + const uint8_t* sp = src_ptr_major; + while (src_len--) { + uint8_t sv = *sp++; + *dp++ = sv; + *dp++ = sv; + *dp++ = sv; + *dp++ = sv; + } + return dst_ptr; +} + +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h1v2_triangle( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor, + size_t src_len, + uint32_t h1v2_bias, + bool first_column, + bool last_column) { + uint8_t* dp = dst_ptr; + const uint8_t* sp_major = src_ptr_major; + const uint8_t* sp_minor = src_ptr_minor; + while (src_len--) { + *dp++ = (uint8_t)(((3u * ((uint32_t)(*sp_major++))) + // + (1u * ((uint32_t)(*sp_minor++))) + // + h1v2_bias) >> + 2u); + } + return dst_ptr; +} + +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h2v1_triangle( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor, + size_t src_len, + uint32_t h1v2_bias_ignored, + bool first_column, + bool last_column) { + uint8_t* dp = dst_ptr; + const uint8_t* sp = src_ptr_major; + + if (first_column) { + src_len--; + if ((src_len <= 0u) && last_column) { + uint8_t sv = *sp++; + *dp++ = sv; + *dp++ = sv; + return dst_ptr; } - iop_a_src += self->private_data.s_do_decode_image_config[0].scratch; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; - } - } - self->private_impl.f_padding = t_1; + uint32_t svp1 = sp[+1]; + uint8_t sv = *sp++; + *dp++ = sv; + *dp++ = (uint8_t)(((3u * (uint32_t)sv) + svp1 + 2u) >> 2u); + if (src_len <= 0u) { + return dst_ptr; } - if (self->private_impl.f_padding < 14u) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; + } + + if (last_column) { + src_len--; + } + + for (; src_len > 0u; src_len--) { + uint32_t svm1 = sp[-1]; + uint32_t svp1 = sp[+1]; + uint32_t sv3 = 3u * (uint32_t)(*sp++); + *dp++ = (uint8_t)((sv3 + svm1 + 1u) >> 2u); + *dp++ = (uint8_t)((sv3 + svp1 + 2u) >> 2u); + } + + if (last_column) { + uint32_t svm1 = sp[-1]; + uint8_t sv = *sp++; + *dp++ = (uint8_t)(((3u * (uint32_t)sv) + svm1 + 1u) >> 2u); + *dp++ = sv; + } + + return dst_ptr; +} + +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h2v2_triangle( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor, + size_t src_len, + uint32_t h1v2_bias_ignored, + bool first_column, + bool last_column) { + uint8_t* dp = dst_ptr; + const uint8_t* sp_major = src_ptr_major; + const uint8_t* sp_minor = src_ptr_minor; + + if (first_column) { + src_len--; + if ((src_len <= 0u) && last_column) { + uint32_t sv = (12u * ((uint32_t)(*sp_major++))) + // + (4u * ((uint32_t)(*sp_minor++))); + *dp++ = (uint8_t)((sv + 8u) >> 4u); + *dp++ = (uint8_t)((sv + 7u) >> 4u); + return dst_ptr; } - self->private_impl.f_padding -= 14u; - self->private_impl.f_io_redirect_pos = wuffs_base__u64__sat_add(((uint64_t)(self->private_impl.f_padding)), wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; - if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; - } - } - self->private_impl.f_bitmap_info_len = t_2; + + uint32_t sv_major_m1 = sp_major[-0]; // Clamp offset to zero. + uint32_t sv_minor_m1 = sp_minor[-0]; // Clamp offset to zero. + uint32_t sv_major_p1 = sp_major[+1]; + uint32_t sv_minor_p1 = sp_minor[+1]; + + uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // + (3u * ((uint32_t)(*sp_minor++))); + *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); + *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); + if (src_len <= 0u) { + return dst_ptr; } - if (self->private_impl.f_padding < self->private_impl.f_bitmap_info_len) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; + } + + if (last_column) { + src_len--; + } + + for (; src_len > 0u; src_len--) { + uint32_t sv_major_m1 = sp_major[-1]; + uint32_t sv_minor_m1 = sp_minor[-1]; + uint32_t sv_major_p1 = sp_major[+1]; + uint32_t sv_minor_p1 = sp_minor[+1]; + + uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // + (3u * ((uint32_t)(*sp_minor++))); + *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); + *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); + } + + if (last_column) { + uint32_t sv_major_m1 = sp_major[-1]; + uint32_t sv_minor_m1 = sp_minor[-1]; + uint32_t sv_major_p1 = sp_major[+0]; // Clamp offset to zero. + uint32_t sv_minor_p1 = sp_minor[+0]; // Clamp offset to zero. + + uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // + (3u * ((uint32_t)(*sp_minor++))); + *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); + *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); + } + + return dst_ptr; +} + +// wuffs_private_impl__swizzle_ycc__upsample_funcs is indexed by inv_h and then +// inv_v. +static const wuffs_private_impl__swizzle_ycc__upsample_func + wuffs_private_impl__swizzle_ycc__upsample_funcs[4][4] = { + { + wuffs_private_impl__swizzle_ycc__upsample_inv_h1vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h1vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h1vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h1vn_box, + }, + { + wuffs_private_impl__swizzle_ycc__upsample_inv_h2vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h2vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h2vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h2vn_box, + }, + { + wuffs_private_impl__swizzle_ycc__upsample_inv_h3vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h3vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h3vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h3vn_box, + }, + { + wuffs_private_impl__swizzle_ycc__upsample_inv_h4vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h4vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h4vn_box, + wuffs_private_impl__swizzle_ycc__upsample_inv_h4vn_box, + }, +}; + +static inline uint32_t // +wuffs_private_impl__swizzle_has_triangle_upsampler(uint32_t inv_h, + uint32_t inv_v) { + if (inv_h == 1u) { + return inv_v == 2u; + } else if (inv_h == 2u) { + return (inv_v == 1u) || (inv_v == 2u); + } + return false; +} + +// -------- + +// All of the wuffs_private_impl__swizzle_ycc__etc functions have +// preconditions. See all of the checks made in +// wuffs_base__pixel_swizzler__swizzle_ycck before calling these functions. For +// example, (width > 0) is a precondition, but there are many more. + +static void // +wuffs_private_impl__swizzle_ycck__general__triangle_filter_edge_row( + wuffs_base__pixel_buffer* dst, + uint32_t width, + uint32_t y, + const uint8_t* src_ptr0, + const uint8_t* src_ptr1, + const uint8_t* src_ptr2, + const uint8_t* src_ptr3, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t stride3, + uint32_t inv_h0, + uint32_t inv_h1, + uint32_t inv_h2, + uint32_t inv_h3, + uint32_t inv_v0, + uint32_t inv_v1, + uint32_t inv_v2, + uint32_t inv_v3, + uint32_t half_width_for_2to1, + uint32_t h1v2_bias, + uint8_t* scratch_buffer_2k_ptr, + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0, + wuffs_private_impl__swizzle_ycc__upsample_func upfunc1, + wuffs_private_impl__swizzle_ycc__upsample_func upfunc2, + wuffs_private_impl__swizzle_ycc__upsample_func upfunc3, + wuffs_private_impl__swizzle_ycc__convert_4_func conv4func) { + const uint8_t* src0 = src_ptr0 + ((y / inv_v0) * (size_t)stride0); + const uint8_t* src1 = src_ptr1 + ((y / inv_v1) * (size_t)stride1); + const uint8_t* src2 = src_ptr2 + ((y / inv_v2) * (size_t)stride2); + const uint8_t* src3 = src_ptr3 + ((y / inv_v3) * (size_t)stride3); + uint32_t total_src_len0 = 0u; + uint32_t total_src_len1 = 0u; + uint32_t total_src_len2 = 0u; + uint32_t total_src_len3 = 0u; + + uint32_t x = 0u; + while (x < width) { + bool first_column = x == 0u; + uint32_t end = x + 480u; + if (end > width) { + end = width; } - self->private_impl.f_padding -= self->private_impl.f_bitmap_info_len; - if (self->private_impl.f_bitmap_info_len == 12u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_3 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; - if (num_bits_3 == 8) { - t_3 = ((uint32_t)(*scratch)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)) << 56; - } - } - self->private_impl.f_width = t_3; + + uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; + uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; + uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; + uint32_t src_len3 = ((end - x) + inv_h3 - 1u) / inv_h3; + total_src_len0 += src_len0; + total_src_len1 += src_len1; + total_src_len2 += src_len2; + total_src_len3 += src_len3; + + const uint8_t* src_ptr_x0 = src0 + (x / inv_h0); + const uint8_t* up0 = (*upfunc0)( // + scratch_buffer_2k_ptr + (0u * 480u), // + src_ptr_x0, // + src_ptr_x0, // + src_len0, // + h1v2_bias, // + first_column, // + (total_src_len0 >= half_width_for_2to1)); + + const uint8_t* src_ptr_x1 = src1 + (x / inv_h1); + const uint8_t* up1 = (*upfunc1)( // + scratch_buffer_2k_ptr + (1u * 480u), // + src_ptr_x1, // + src_ptr_x1, // + src_len1, // + h1v2_bias, // + first_column, // + (total_src_len1 >= half_width_for_2to1)); + + const uint8_t* src_ptr_x2 = src2 + (x / inv_h2); + const uint8_t* up2 = (*upfunc2)( // + scratch_buffer_2k_ptr + (2u * 480u), // + src_ptr_x2, // + src_ptr_x2, // + src_len2, // + h1v2_bias, // + first_column, // + (total_src_len2 >= half_width_for_2to1)); + + const uint8_t* src_ptr_x3 = src3 + (x / inv_h3); + const uint8_t* up3 = (*upfunc3)( // + scratch_buffer_2k_ptr + (3u * 480u), // + src_ptr_x3, // + src_ptr_x3, // + src_len3, // + h1v2_bias, // + first_column, // + (total_src_len3 >= half_width_for_2to1)); + + (*conv4func)(dst, x, end, y, up0, up1, up2, up3); + x = end; + } +} + +static void // +wuffs_private_impl__swizzle_ycck__general__triangle_filter( + wuffs_base__pixel_buffer* dst, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, + const uint8_t* src_ptr0, + const uint8_t* src_ptr1, + const uint8_t* src_ptr2, + const uint8_t* src_ptr3, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t stride3, + uint32_t inv_h0, + uint32_t inv_h1, + uint32_t inv_h2, + uint32_t inv_h3, + uint32_t inv_v0, + uint32_t inv_v1, + uint32_t inv_v2, + uint32_t inv_v3, + uint32_t half_width_for_2to1, + uint32_t half_height_for_2to1, + uint8_t* scratch_buffer_2k_ptr, + wuffs_private_impl__swizzle_ycc__upsample_func (*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_4_func conv4func) { + if ((x_min_incl != 0) || (y_min_incl != 0)) { + return; + } + + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0 = + (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc1 = + (*upfuncs)[(inv_h1 - 1u) & 3u][(inv_v1 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc2 = + (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc3 = + (*upfuncs)[(inv_h3 - 1u) & 3u][(inv_v3 - 1u) & 3u]; + + // First row. + uint32_t h1v2_bias = 1u; + wuffs_private_impl__swizzle_ycck__general__triangle_filter_edge_row( + dst, x_max_excl, 0u, // + src_ptr0, src_ptr1, src_ptr2, src_ptr3, // + stride0, stride1, stride2, stride3, // + inv_h0, inv_h1, inv_h2, inv_h3, // + inv_v0, inv_v1, inv_v2, inv_v3, // + half_width_for_2to1, // + h1v2_bias, // + scratch_buffer_2k_ptr, // + upfunc0, upfunc1, upfunc2, upfunc3, conv4func); + h1v2_bias = 2u; + + // Middle rows. + bool last_row = y_max_excl == 2u * half_height_for_2to1; + uint32_t middle_y_max_excl = last_row ? (y_max_excl - 1u) : y_max_excl; + uint32_t y; + for (y = 1u; y < middle_y_max_excl; y++) { + const uint8_t* src0_major = src_ptr0 + ((y / inv_v0) * (size_t)stride0); + const uint8_t* src0_minor = + (inv_v0 != 2u) + ? src0_major + : ((y & 1u) ? (src0_major + stride0) : (src0_major - stride0)); + const uint8_t* src1_major = src_ptr1 + ((y / inv_v1) * (size_t)stride1); + const uint8_t* src1_minor = + (inv_v1 != 2u) + ? src1_major + : ((y & 1u) ? (src1_major + stride1) : (src1_major - stride1)); + const uint8_t* src2_major = src_ptr2 + ((y / inv_v2) * (size_t)stride2); + const uint8_t* src2_minor = + (inv_v2 != 2u) + ? src2_major + : ((y & 1u) ? (src2_major + stride2) : (src2_major - stride2)); + const uint8_t* src3_major = src_ptr3 + ((y / inv_v3) * (size_t)stride3); + const uint8_t* src3_minor = + (inv_v3 != 2u) + ? src3_major + : ((y & 1u) ? (src3_major + stride3) : (src3_major - stride3)); + uint32_t total_src_len0 = 0u; + uint32_t total_src_len1 = 0u; + uint32_t total_src_len2 = 0u; + uint32_t total_src_len3 = 0u; + + uint32_t x = 0u; + while (x < x_max_excl) { + bool first_column = x == 0u; + uint32_t end = x + 480u; + if (end > x_max_excl) { + end = x_max_excl; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_4 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; - if (num_bits_4 == 8) { - t_4 = ((uint32_t)(*scratch)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)) << 56; - } - } - self->private_impl.f_height = t_4; + + uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; + uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; + uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; + uint32_t src_len3 = ((end - x) + inv_h3 - 1u) / inv_h3; + total_src_len0 += src_len0; + total_src_len1 += src_len1; + total_src_len2 += src_len2; + total_src_len3 += src_len3; + + const uint8_t* up0 = (*upfunc0)( // + scratch_buffer_2k_ptr + (0u * 480u), // + src0_major + (x / inv_h0), // + src0_minor + (x / inv_h0), // + src_len0, // + h1v2_bias, // + first_column, // + (total_src_len0 >= half_width_for_2to1)); + + const uint8_t* up1 = (*upfunc1)( // + scratch_buffer_2k_ptr + (1u * 480u), // + src1_major + (x / inv_h1), // + src1_minor + (x / inv_h1), // + src_len1, // + h1v2_bias, // + first_column, // + (total_src_len1 >= half_width_for_2to1)); + + const uint8_t* up2 = (*upfunc2)( // + scratch_buffer_2k_ptr + (2u * 480u), // + src2_major + (x / inv_h2), // + src2_minor + (x / inv_h2), // + src_len2, // + h1v2_bias, // + first_column, // + (total_src_len2 >= half_width_for_2to1)); + + const uint8_t* up3 = (*upfunc3)( // + scratch_buffer_2k_ptr + (3u * 480u), // + src3_major + (x / inv_h3), // + src3_minor + (x / inv_h3), // + src_len3, // + h1v2_bias, // + first_column, // + (total_src_len3 >= half_width_for_2to1)); + + (*conv4func)(dst, x, end, y, up0, up1, up2, up3); + x = end; + } + + h1v2_bias ^= 3u; + } + + // Last row. + if (middle_y_max_excl != y_max_excl) { + wuffs_private_impl__swizzle_ycck__general__triangle_filter_edge_row( + dst, x_max_excl, middle_y_max_excl, // + src_ptr0, src_ptr1, src_ptr2, src_ptr3, // + stride0, stride1, stride2, stride3, // + inv_h0, inv_h1, inv_h2, inv_h3, // + inv_v0, inv_v1, inv_v2, inv_v3, // + half_width_for_2to1, // + h1v2_bias, // + scratch_buffer_2k_ptr, // + upfunc0, upfunc1, upfunc2, upfunc3, conv4func); + } +} + +static void // +wuffs_private_impl__swizzle_ycc__general__triangle_filter_edge_row( + wuffs_base__pixel_buffer* dst, + uint32_t width, + uint32_t y, + const uint8_t* src_ptr0, + const uint8_t* src_ptr1, + const uint8_t* src_ptr2, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t inv_h0, + uint32_t inv_h1, + uint32_t inv_h2, + uint32_t inv_v0, + uint32_t inv_v1, + uint32_t inv_v2, + uint32_t half_width_for_2to1, + uint32_t h1v2_bias, + uint8_t* scratch_buffer_2k_ptr, + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0, + wuffs_private_impl__swizzle_ycc__upsample_func upfunc1, + wuffs_private_impl__swizzle_ycc__upsample_func upfunc2, + wuffs_private_impl__swizzle_ycc__convert_3_func conv3func) { + const uint8_t* src0 = src_ptr0 + ((y / inv_v0) * (size_t)stride0); + const uint8_t* src1 = src_ptr1 + ((y / inv_v1) * (size_t)stride1); + const uint8_t* src2 = src_ptr2 + ((y / inv_v2) * (size_t)stride2); + uint32_t total_src_len0 = 0u; + uint32_t total_src_len1 = 0u; + uint32_t total_src_len2 = 0u; + + uint32_t x = 0u; + while (x < width) { + bool first_column = x == 0u; + uint32_t end = x + 672u; + if (end > width) { + end = width; + } + + uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; + uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; + uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; + total_src_len0 += src_len0; + total_src_len1 += src_len1; + total_src_len2 += src_len2; + + const uint8_t* src_ptr_x0 = src0 + (x / inv_h0); + const uint8_t* up0 = (*upfunc0)( // + scratch_buffer_2k_ptr + (0u * 672u), // + src_ptr_x0, // + src_ptr_x0, // + src_len0, // + h1v2_bias, // + first_column, // + (total_src_len0 >= half_width_for_2to1)); + + const uint8_t* src_ptr_x1 = src1 + (x / inv_h1); + const uint8_t* up1 = (*upfunc1)( // + scratch_buffer_2k_ptr + (1u * 672u), // + src_ptr_x1, // + src_ptr_x1, // + src_len1, // + h1v2_bias, // + first_column, // + (total_src_len1 >= half_width_for_2to1)); + + const uint8_t* src_ptr_x2 = src2 + (x / inv_h2); + const uint8_t* up2 = (*upfunc2)( // + scratch_buffer_2k_ptr + (2u * 672u), // + src_ptr_x2, // + src_ptr_x2, // + src_len2, // + h1v2_bias, // + first_column, // + (total_src_len2 >= half_width_for_2to1)); + + (*conv3func)(dst, x, end, y, up0, up1, up2); + x = end; + } +} + +static void // +wuffs_private_impl__swizzle_ycc__general__triangle_filter( + wuffs_base__pixel_buffer* dst, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, + const uint8_t* src_ptr0, + const uint8_t* src_ptr1, + const uint8_t* src_ptr2, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t inv_h0, + uint32_t inv_h1, + uint32_t inv_h2, + uint32_t inv_v0, + uint32_t inv_v1, + uint32_t inv_v2, + uint32_t half_width_for_2to1, + uint32_t half_height_for_2to1, + uint8_t* scratch_buffer_2k_ptr, + wuffs_private_impl__swizzle_ycc__upsample_func (*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_3_func conv3func) { + if ((x_min_incl != 0) || (y_min_incl != 0)) { + return; + } + + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0 = + (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc1 = + (*upfuncs)[(inv_h1 - 1u) & 3u][(inv_v1 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc2 = + (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; + + // First row. + uint32_t h1v2_bias = 1u; + wuffs_private_impl__swizzle_ycc__general__triangle_filter_edge_row( + dst, x_max_excl, 0u, // + src_ptr0, src_ptr1, src_ptr2, // + stride0, stride1, stride2, // + inv_h0, inv_h1, inv_h2, // + inv_v0, inv_v1, inv_v2, // + half_width_for_2to1, // + h1v2_bias, // + scratch_buffer_2k_ptr, // + upfunc0, upfunc1, upfunc2, conv3func); + h1v2_bias = 2u; + + // Middle rows. + bool last_row = y_max_excl == 2u * half_height_for_2to1; + uint32_t middle_y_max_excl = last_row ? (y_max_excl - 1u) : y_max_excl; + uint32_t y; + for (y = 1u; y < middle_y_max_excl; y++) { + const uint8_t* src0_major = src_ptr0 + ((y / inv_v0) * (size_t)stride0); + const uint8_t* src0_minor = + (inv_v0 != 2u) + ? src0_major + : ((y & 1u) ? (src0_major + stride0) : (src0_major - stride0)); + const uint8_t* src1_major = src_ptr1 + ((y / inv_v1) * (size_t)stride1); + const uint8_t* src1_minor = + (inv_v1 != 2u) + ? src1_major + : ((y & 1u) ? (src1_major + stride1) : (src1_major - stride1)); + const uint8_t* src2_major = src_ptr2 + ((y / inv_v2) * (size_t)stride2); + const uint8_t* src2_minor = + (inv_v2 != 2u) + ? src2_major + : ((y & 1u) ? (src2_major + stride2) : (src2_major - stride2)); + uint32_t total_src_len0 = 0u; + uint32_t total_src_len1 = 0u; + uint32_t total_src_len2 = 0u; + + uint32_t x = 0u; + while (x < x_max_excl) { + bool first_column = x == 0u; + uint32_t end = x + 672u; + if (end > x_max_excl) { + end = x_max_excl; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - uint32_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_5 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_5; - if (num_bits_5 == 8) { - t_5 = ((uint32_t)(*scratch)); - break; - } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)) << 56; - } - } - v_planes = t_5; + + uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; + uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; + uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; + total_src_len0 += src_len0; + total_src_len1 += src_len1; + total_src_len2 += src_len2; + + const uint8_t* up0 = (*upfunc0)( // + scratch_buffer_2k_ptr + (0u * 672u), // + src0_major + (x / inv_h0), // + src0_minor + (x / inv_h0), // + src_len0, // + h1v2_bias, // + first_column, // + (total_src_len0 >= half_width_for_2to1)); + + const uint8_t* up1 = (*upfunc1)( // + scratch_buffer_2k_ptr + (1u * 672u), // + src1_major + (x / inv_h1), // + src1_minor + (x / inv_h1), // + src_len1, // + h1v2_bias, // + first_column, // + (total_src_len1 >= half_width_for_2to1)); + + const uint8_t* up2 = (*upfunc2)( // + scratch_buffer_2k_ptr + (2u * 672u), // + src2_major + (x / inv_h2), // + src2_minor + (x / inv_h2), // + src_len2, // + h1v2_bias, // + first_column, // + (total_src_len2 >= half_width_for_2to1)); + + (*conv3func)(dst, x, end, y, up0, up1, up2); + x = end; + } + + h1v2_bias ^= 3u; + } + + // Last row. + if (middle_y_max_excl != y_max_excl) { + wuffs_private_impl__swizzle_ycc__general__triangle_filter_edge_row( + dst, x_max_excl, middle_y_max_excl, // + src_ptr0, src_ptr1, src_ptr2, // + stride0, stride1, stride2, // + inv_h0, inv_h1, inv_h2, // + inv_v0, inv_v1, inv_v2, // + half_width_for_2to1, // + h1v2_bias, // + scratch_buffer_2k_ptr, // + upfunc0, upfunc1, upfunc2, conv3func); + } +} + +static void // +wuffs_private_impl__swizzle_ycc__general__box_filter( + wuffs_base__pixel_buffer* dst, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, + const uint8_t* src_ptr0, + const uint8_t* src_ptr1, + const uint8_t* src_ptr2, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t inv_h0, + uint32_t inv_h1, + uint32_t inv_h2, + uint32_t inv_v0, + uint32_t inv_v1, + uint32_t inv_v2, + uint32_t half_width_for_2to1, + uint32_t half_height_for_2to1, + uint8_t* scratch_buffer_2k_ptr, + wuffs_private_impl__swizzle_ycc__upsample_func (*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_3_func conv3func) { + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0 = + (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc1 = + (*upfuncs)[(inv_h1 - 1u) & 3u][(inv_v1 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc2 = + (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; + + uint32_t y; + for (y = y_min_incl; y < y_max_excl; y++) { + const uint8_t* src0_major = + src_ptr0 + (((y - y_min_incl) / inv_v0) * (size_t)stride0); + const uint8_t* src1_major = + src_ptr1 + (((y - y_min_incl) / inv_v1) * (size_t)stride1); + const uint8_t* src2_major = + src_ptr2 + (((y - y_min_incl) / inv_v2) * (size_t)stride2); + + uint32_t x = x_min_incl; + while (x < x_max_excl) { + uint32_t end = x + 672u; + if (end > x_max_excl) { + end = x_max_excl; } - if (v_planes != 1u) { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; + + uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; + uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; + uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; + + const uint8_t* up0 = (*upfunc0)( // + scratch_buffer_2k_ptr + (0u * 672u), // + src0_major + ((x - x_min_incl) / inv_h0), // + src0_major + ((x - x_min_incl) / inv_h0), // + src_len0, // + 0u, false, false); + + const uint8_t* up1 = (*upfunc1)( // + scratch_buffer_2k_ptr + (1u * 672u), // + src1_major + ((x - x_min_incl) / inv_h1), // + src1_major + ((x - x_min_incl) / inv_h1), // + src_len1, // + 0u, false, false); + + const uint8_t* up2 = (*upfunc2)( // + scratch_buffer_2k_ptr + (2u * 672u), // + src2_major + ((x - x_min_incl) / inv_h2), // + src2_major + ((x - x_min_incl) / inv_h2), // + src_len2, // + 0u, false, false); + + (*conv3func)(dst, x, end, y, up0, up1, up2); + x = end; + } + } +} + +static void // +wuffs_private_impl__swizzle_ycck__general__box_filter( + wuffs_base__pixel_buffer* dst, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, + const uint8_t* src_ptr0, + const uint8_t* src_ptr1, + const uint8_t* src_ptr2, + const uint8_t* src_ptr3, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t stride3, + uint32_t inv_h0, + uint32_t inv_h1, + uint32_t inv_h2, + uint32_t inv_h3, + uint32_t inv_v0, + uint32_t inv_v1, + uint32_t inv_v2, + uint32_t inv_v3, + uint32_t half_width_for_2to1, + uint32_t half_height_for_2to1, + uint8_t* scratch_buffer_2k_ptr, + wuffs_private_impl__swizzle_ycc__upsample_func (*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_4_func conv4func) { + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0 = + (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc1 = + (*upfuncs)[(inv_h1 - 1u) & 3u][(inv_v1 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc2 = + (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc3 = + (*upfuncs)[(inv_h3 - 1u) & 3u][(inv_v3 - 1u) & 3u]; + + uint32_t y; + for (y = y_min_incl; y < y_max_excl; y++) { + const uint8_t* src0_major = + src_ptr0 + (((y - y_min_incl) / inv_v0) * (size_t)stride0); + const uint8_t* src1_major = + src_ptr1 + (((y - y_min_incl) / inv_v1) * (size_t)stride1); + const uint8_t* src2_major = + src_ptr2 + (((y - y_min_incl) / inv_v2) * (size_t)stride2); + const uint8_t* src3_major = + src_ptr3 + (((y - y_min_incl) / inv_v3) * (size_t)stride3); + + uint32_t x = x_min_incl; + while (x < x_max_excl) { + uint32_t end = x + 480u; + if (end > x_max_excl) { + end = x_max_excl; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - uint32_t t_6; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_6 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_6 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_6; - if (num_bits_6 == 8) { - t_6 = ((uint32_t)(*scratch)); - break; - } - num_bits_6 += 8u; - *scratch |= ((uint64_t)(num_bits_6)) << 56; - } - } - self->private_impl.f_bits_per_pixel = t_6; - } - } else if (self->private_impl.f_bitmap_info_len == 16u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - uint32_t t_7; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_7 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; - if (num_bits_7 == 24) { - t_7 = ((uint32_t)(*scratch)); - break; - } - num_bits_7 += 8u; - *scratch |= ((uint64_t)(num_bits_7)) << 56; - } - } - v_width = t_7; - } - if (v_width > 2147483647u) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; - } else if (v_width > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - self->private_impl.f_width = v_width; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); - uint32_t t_8; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_8 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_8 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_8; - if (num_bits_8 == 24) { - t_8 = ((uint32_t)(*scratch)); - break; - } - num_bits_8 += 8u; - *scratch |= ((uint64_t)(num_bits_8)) << 56; - } - } - v_height = t_8; - } - if (v_height > 2147483647u) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; - } else if (v_height > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - self->private_impl.f_height = v_height; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); - uint32_t t_9; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_9 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_9 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_9; - if (num_bits_9 == 8) { - t_9 = ((uint32_t)(*scratch)); - break; - } - num_bits_9 += 8u; - *scratch |= ((uint64_t)(num_bits_9)) << 56; - } - } - v_planes = t_9; - } - if (v_planes != 1u) { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); - uint32_t t_10; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_10 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_10 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_10; - if (num_bits_10 == 8) { - t_10 = ((uint32_t)(*scratch)); - break; - } - num_bits_10 += 8u; - *scratch |= ((uint64_t)(num_bits_10)) << 56; - } - } - self->private_impl.f_bits_per_pixel = t_10; - } - } else { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); - uint32_t t_11; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_11 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(25); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_11 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_11; - if (num_bits_11 == 24) { - t_11 = ((uint32_t)(*scratch)); - break; - } - num_bits_11 += 8u; - *scratch |= ((uint64_t)(num_bits_11)) << 56; - } - } - v_width = t_11; - } - if (v_width > 2147483647u) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; - } else if (v_width > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - self->private_impl.f_width = v_width; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(26); - uint32_t t_12; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_12 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(27); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_12 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_12; - if (num_bits_12 == 24) { - t_12 = ((uint32_t)(*scratch)); - break; - } - num_bits_12 += 8u; - *scratch |= ((uint64_t)(num_bits_12)) << 56; - } - } - v_height = t_12; - } - if (v_height == 2147483648u) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; - } else if (v_height > 2147483648u) { - v_height = ((uint32_t)(0u - v_height)); - if (v_height > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - self->private_impl.f_height = v_height; - self->private_impl.f_top_down = true; - } else if (v_height > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } else { - self->private_impl.f_height = v_height; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(28); - uint32_t t_13; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_13 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(29); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_13 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_13; - if (num_bits_13 == 8) { - t_13 = ((uint32_t)(*scratch)); - break; - } - num_bits_13 += 8u; - *scratch |= ((uint64_t)(num_bits_13)) << 56; - } + + uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; + uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; + uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; + uint32_t src_len3 = ((end - x) + inv_h3 - 1u) / inv_h3; + + const uint8_t* up0 = (*upfunc0)( // + scratch_buffer_2k_ptr + (0u * 480u), // + src0_major + ((x - x_min_incl) / inv_h0), // + src0_major + ((x - x_min_incl) / inv_h0), // + src_len0, // + 0u, false, false); + + const uint8_t* up1 = (*upfunc1)( // + scratch_buffer_2k_ptr + (1u * 480u), // + src1_major + ((x - x_min_incl) / inv_h1), // + src1_major + ((x - x_min_incl) / inv_h1), // + src_len1, // + 0u, false, false); + + const uint8_t* up2 = (*upfunc2)( // + scratch_buffer_2k_ptr + (2u * 480u), // + src2_major + ((x - x_min_incl) / inv_h2), // + src2_major + ((x - x_min_incl) / inv_h2), // + src_len2, // + 0u, false, false); + + const uint8_t* up3 = (*upfunc3)( // + scratch_buffer_2k_ptr + (3u * 480u), // + src3_major + ((x - x_min_incl) / inv_h3), // + src3_major + ((x - x_min_incl) / inv_h3), // + src_len3, // + 0u, false, false); + + (*conv4func)(dst, x, end, y, up0, up1, up2, up3); + x = end; + } + } +} + +// -------- + +// wuffs_private_impl__swizzle_flattened_length is like +// wuffs_base__table__flattened_length but returns uint64_t (not size_t) and +// also accounts for subsampling. +static uint64_t // +wuffs_private_impl__swizzle_flattened_length(uint32_t width, + uint32_t height, + uint32_t stride, + uint32_t inv_h, + uint32_t inv_v) { + uint64_t scaled_width = (((uint64_t)width) + (inv_h - 1u)) / inv_h; + uint64_t scaled_height = (((uint64_t)height) + (inv_v - 1u)) / inv_v; + if (scaled_height <= 0u) { + return 0u; + } + return ((scaled_height - 1u) * stride) + scaled_width; +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__status // +wuffs_base__pixel_swizzler__swizzle_ycck( + const wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_buffer* dst, + wuffs_base__slice_u8 dst_palette, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, + wuffs_base__slice_u8 src0, + wuffs_base__slice_u8 src1, + wuffs_base__slice_u8 src2, + wuffs_base__slice_u8 src3, + uint32_t width0, + uint32_t width1, + uint32_t width2, + uint32_t width3, + uint32_t height0, + uint32_t height1, + uint32_t height2, + uint32_t height3, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t stride3, + uint8_t h0, + uint8_t h1, + uint8_t h2, + uint8_t h3, + uint8_t v0, + uint8_t v1, + uint8_t v2, + uint8_t v3, + bool is_rgb_or_cmyk, + bool triangle_filter_for_2to1, + wuffs_base__slice_u8 scratch_buffer_2k) { + if (!p) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } else if (!dst || // + (x_min_incl > x_max_excl) || // + (x_max_excl > 0xFFFFu) || // + (y_min_incl > y_max_excl) || // + (y_max_excl > 0xFFFFu) || // + (4u <= ((unsigned int)h0 - 1u)) || // + (4u <= ((unsigned int)h1 - 1u)) || // + (4u <= ((unsigned int)h2 - 1u)) || // + (4u <= ((unsigned int)v0 - 1u)) || // + (4u <= ((unsigned int)v1 - 1u)) || // + (4u <= ((unsigned int)v2 - 1u)) || // + (triangle_filter_for_2to1 && ((x_min_incl | y_min_incl) > 0u)) || + (scratch_buffer_2k.len < 2048u)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((h3 != 0u) || (v3 != 0u)) { + if ((4u <= ((unsigned int)h3 - 1u)) || // + (4u <= ((unsigned int)v3 - 1u))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + + uint32_t max_incl_h = wuffs_private_impl__u32__max_of_4(h0, h1, h2, h3); + uint32_t max_incl_v = wuffs_private_impl__u32__max_of_4(v0, v1, v2, v3); + + // Calculate the inverse h and v ratios. + // + // It also canonicalizes (h=2 and max_incl_h=4) as equivalent to (h=1 and + // max_incl_h=2). In both cases, the inv_h value is 2. + uint32_t inv_h0 = max_incl_h / h0; + uint32_t inv_h1 = max_incl_h / h1; + uint32_t inv_h2 = max_incl_h / h2; + uint32_t inv_h3 = h3 ? (max_incl_h / h3) : 0u; + uint32_t inv_v0 = max_incl_v / v0; + uint32_t inv_v1 = max_incl_v / v1; + uint32_t inv_v2 = max_incl_v / v2; + uint32_t inv_v3 = v3 ? (max_incl_v / v3) : 0u; + + if (x_min_incl != 0) { + if ((x_min_incl % inv_h0) || (x_min_incl % inv_h1) || + (x_min_incl % inv_h2) || (inv_h3 && (x_min_incl % inv_h3))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + if (y_min_incl != 0) { + if ((y_min_incl % inv_v0) || (y_min_incl % inv_v1) || + (y_min_incl % inv_v2) || (inv_v3 && (y_min_incl % inv_v3))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + + uint32_t half_width_for_2to1 = ((x_max_excl - x_min_incl) + 1u) / 2u; + if (inv_h0 == 2) { + half_width_for_2to1 = wuffs_base__u32__min(half_width_for_2to1, width0); + } + if (inv_h1 == 2) { + half_width_for_2to1 = wuffs_base__u32__min(half_width_for_2to1, width1); + } + if (inv_h2 == 2) { + half_width_for_2to1 = wuffs_base__u32__min(half_width_for_2to1, width2); + } + if (inv_h3 == 2) { + half_width_for_2to1 = wuffs_base__u32__min(half_width_for_2to1, width3); + } + + uint32_t half_height_for_2to1 = ((y_max_excl - y_min_incl) + 1u) / 2u; + if (inv_v0 == 2) { + half_height_for_2to1 = wuffs_base__u32__min(half_height_for_2to1, height0); + } + if (inv_v1 == 2) { + half_height_for_2to1 = wuffs_base__u32__min(half_height_for_2to1, height1); + } + if (inv_v2 == 2) { + half_height_for_2to1 = wuffs_base__u32__min(half_height_for_2to1, height2); + } + if (inv_v3 == 2) { + half_height_for_2to1 = wuffs_base__u32__min(half_height_for_2to1, height3); + } + + x_max_excl = wuffs_base__u32__min( // + wuffs_base__pixel_config__width(&dst->pixcfg), // + x_min_incl + wuffs_private_impl__u32__min_of_5( // + x_max_excl - x_min_incl, // + width0 * inv_h0, // + width1 * inv_h1, // + width2 * inv_h2, // + inv_h3 ? (width3 * inv_h3) : 0xFFFFFFFF)); + y_max_excl = wuffs_base__u32__min( // + wuffs_base__pixel_config__height(&dst->pixcfg), // + y_min_incl + wuffs_private_impl__u32__min_of_5( // + y_max_excl - y_min_incl, // + height0 * inv_v0, // + height1 * inv_v1, // + height2 * inv_v2, // + inv_v3 ? (height3 * inv_v3) : 0xFFFFFFFF)); + + if ((x_min_incl >= x_max_excl) || (y_min_incl >= y_max_excl)) { + return wuffs_base__make_status(NULL); + } + uint32_t width = x_max_excl - x_min_incl; + uint32_t height = y_max_excl - y_min_incl; + + if (((h0 * inv_h0) != max_incl_h) || // + ((h1 * inv_h1) != max_incl_h) || // + ((h2 * inv_h2) != max_incl_h) || // + ((v0 * inv_v0) != max_incl_v) || // + ((v1 * inv_v1) != max_incl_v) || // + ((v2 * inv_v2) != max_incl_v) || // + (src0.len < wuffs_private_impl__swizzle_flattened_length( + width, height, stride0, inv_h0, inv_v0)) || + (src1.len < wuffs_private_impl__swizzle_flattened_length( + width, height, stride1, inv_h1, inv_v1)) || + (src2.len < wuffs_private_impl__swizzle_flattened_length( + width, height, stride2, inv_h2, inv_v2))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((h3 != 0u) || (v3 != 0u)) { + if (((h3 * inv_h3) != max_incl_h) || // + ((v3 * inv_v3) != max_incl_v) || // + (src3.len < wuffs_private_impl__swizzle_flattened_length( + width, height, stride3, inv_h3, inv_v3))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + + if (wuffs_base__pixel_format__is_planar(&dst->pixcfg.private_impl.pixfmt)) { + // TODO: see wuffs_base__pixel_buffer__set_color_u32_at's TODO. + return wuffs_base__make_status( + wuffs_base__error__unsupported_pixel_swizzler_option); + } + + // ---- + +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) + switch (dst->pixcfg.private_impl.pixfmt.repr) { +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGR_565) + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGR) + case WUFFS_BASE__PIXEL_FORMAT__BGR: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_NONPREMUL) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_NONPREMUL_4X16LE) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_PREMUL) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGB) + case WUFFS_BASE__PIXEL_FORMAT__RGB: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGBA_NONPREMUL) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGBA_PREMUL) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + break; +#endif + default: + return wuffs_base__make_status( + wuffs_base__error__disabled_by_wuffs_config_dst_pixel_format_enable_allowlist); + } +#else // defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) + switch (dst->pixcfg.private_impl.pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: + case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + case WUFFS_BASE__PIXEL_FORMAT__BGR: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + case WUFFS_BASE__PIXEL_FORMAT__RGB: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + break; + + default: + // TODO: see wuffs_base__pixel_buffer__set_color_u32_at's TODO. + return wuffs_base__make_status( + wuffs_base__error__unsupported_pixel_swizzler_option); + } +#endif // defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) + + // ---- + + wuffs_private_impl__swizzle_ycc__convert_3_func conv3func = NULL; + + if (is_rgb_or_cmyk) { + conv3func = &wuffs_private_impl__swizzle_rgb__convert_3_general; + } else { + switch (dst->pixcfg.private_impl.pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) + if (wuffs_base__cpu_arch__have_x86_avx2()) { + conv3func = &wuffs_private_impl__swizzle_ycc__convert_3_bgrx_x86_avx2; + break; } - v_planes = t_13; - } - if (v_planes != 1u) { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(30); - uint32_t t_14; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_14 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(31); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_14 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_14; - if (num_bits_14 == 8) { - t_14 = ((uint32_t)(*scratch)); - break; - } - num_bits_14 += 8u; - *scratch |= ((uint64_t)(num_bits_14)) << 56; - } +#endif + conv3func = &wuffs_private_impl__swizzle_ycc__convert_3_bgrx; + break; + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) + if (wuffs_base__cpu_arch__have_x86_avx2()) { + conv3func = &wuffs_private_impl__swizzle_ycc__convert_3_rgbx_x86_avx2; + break; } - self->private_impl.f_bits_per_pixel = t_14; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(32); - uint32_t t_15; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_15 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(33); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_15 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_15; - if (num_bits_15 == 24) { - t_15 = ((uint32_t)(*scratch)); - break; - } - num_bits_15 += 8u; - *scratch |= ((uint64_t)(num_bits_15)) << 56; - } - } - self->private_impl.f_compression = t_15; - } - if (self->private_impl.f_bits_per_pixel == 0u) { - if (self->private_impl.f_compression == 4u) { - self->private_impl.f_io_redirect_fourcc = 1246774599u; - status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); - goto ok; - } else if (self->private_impl.f_compression == 5u) { - self->private_impl.f_io_redirect_fourcc = 1347307296u; - status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); - goto ok; - } - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - self->private_data.s_do_decode_image_config[0].scratch = 20u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(34); - if (self->private_data.s_do_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_image_config[0].scratch; - if (self->private_impl.f_bitmap_info_len == 40u) { - if (self->private_impl.f_bits_per_pixel >= 16u) { - if (self->private_impl.f_padding >= 16u) { - self->private_impl.f_bitmap_info_len = 56u; - self->private_impl.f_padding -= 16u; - } else if (self->private_impl.f_padding >= 12u) { - self->private_impl.f_bitmap_info_len = 52u; - self->private_impl.f_padding -= 12u; - } - } - } else if ((self->private_impl.f_bitmap_info_len != 52u) && - (self->private_impl.f_bitmap_info_len != 56u) && - (self->private_impl.f_bitmap_info_len != 64u) && - (self->private_impl.f_bitmap_info_len != 108u) && - (self->private_impl.f_bitmap_info_len != 124u)) { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - if (self->private_impl.f_compression == 6u) { - self->private_impl.f_compression = 3u; - } - if (self->private_impl.f_compression == 3u) { - if (self->private_impl.f_bitmap_info_len >= 52u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(35); - uint32_t t_16; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_16 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(36); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_16 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_16; - if (num_bits_16 == 24) { - t_16 = ((uint32_t)(*scratch)); - break; - } - num_bits_16 += 8u; - *scratch |= ((uint64_t)(num_bits_16)) << 56; - } - } - self->private_impl.f_channel_masks[2u] = t_16; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(37); - uint32_t t_17; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_17 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(38); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_17 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_17; - if (num_bits_17 == 24) { - t_17 = ((uint32_t)(*scratch)); - break; - } - num_bits_17 += 8u; - *scratch |= ((uint64_t)(num_bits_17)) << 56; - } - } - self->private_impl.f_channel_masks[1u] = t_17; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(39); - uint32_t t_18; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_18 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(40); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_18 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_18; - if (num_bits_18 == 24) { - t_18 = ((uint32_t)(*scratch)); - break; - } - num_bits_18 += 8u; - *scratch |= ((uint64_t)(num_bits_18)) << 56; - } - } - self->private_impl.f_channel_masks[0u] = t_18; - } - if (self->private_impl.f_bitmap_info_len >= 56u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(41); - uint32_t t_19; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_19 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(42); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_19 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_19; - if (num_bits_19 == 24) { - t_19 = ((uint32_t)(*scratch)); - break; - } - num_bits_19 += 8u; - *scratch |= ((uint64_t)(num_bits_19)) << 56; - } - } - self->private_impl.f_channel_masks[3u] = t_19; - } - self->private_data.s_do_decode_image_config[0].scratch = ((uint32_t)(self->private_impl.f_bitmap_info_len - 56u)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(43); - if (self->private_data.s_do_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_image_config[0].scratch; - } - if ((self->private_impl.f_channel_masks[0u] == 255u) && (self->private_impl.f_channel_masks[1u] == 65280u) && (self->private_impl.f_channel_masks[2u] == 16711680u)) { - if (self->private_impl.f_bits_per_pixel == 24u) { - self->private_impl.f_compression = 0u; - } else if (self->private_impl.f_bits_per_pixel == 32u) { - if ((self->private_impl.f_channel_masks[3u] == 0u) || (self->private_impl.f_channel_masks[3u] == 4278190080u)) { - self->private_impl.f_compression = 0u; - } - } - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(44); - status = wuffs_bmp__decoder__process_masks(self); - if (status.repr) { - goto suspend; - } - } - } else if (self->private_impl.f_bitmap_info_len >= 40u) { - self->private_data.s_do_decode_image_config[0].scratch = (self->private_impl.f_bitmap_info_len - 40u); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(45); - if (self->private_data.s_do_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_image_config[0].scratch; - } else { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - } - if (self->private_impl.f_compression != 3u) { - if (self->private_impl.f_bits_per_pixel < 16u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(46); - status = wuffs_bmp__decoder__read_palette(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } - } - if (self->private_impl.f_compression == 0u) { - if ((self->private_impl.f_bits_per_pixel == 1u) || (self->private_impl.f_bits_per_pixel == 2u) || (self->private_impl.f_bits_per_pixel == 4u)) { - self->private_impl.f_src_pixfmt = 2198077448u; - self->private_impl.f_compression = 256u; - } else if (self->private_impl.f_bits_per_pixel == 8u) { - self->private_impl.f_src_pixfmt = 2198077448u; - } else if (self->private_impl.f_bits_per_pixel == 16u) { - self->private_impl.f_compression = 3u; - self->private_impl.f_channel_masks[0u] = 31u; - self->private_impl.f_channel_masks[1u] = 992u; - self->private_impl.f_channel_masks[2u] = 31744u; - self->private_impl.f_channel_masks[3u] = 0u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(47); - status = wuffs_bmp__decoder__process_masks(self); - if (status.repr) { - goto suspend; - } - self->private_impl.f_src_pixfmt = 2164308923u; - } else if (self->private_impl.f_bits_per_pixel == 24u) { - self->private_impl.f_src_pixfmt = 2147485832u; - } else if (self->private_impl.f_bits_per_pixel == 32u) { - if (self->private_impl.f_channel_masks[3u] == 0u) { - self->private_impl.f_src_pixfmt = 2415954056u; - } else { - self->private_impl.f_src_pixfmt = 2164295816u; - } - } else { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - } else if (self->private_impl.f_compression == 1u) { - if (self->private_impl.f_bits_per_pixel == 8u) { - self->private_impl.f_src_pixfmt = 2198077448u; - } else { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - } else if (self->private_impl.f_compression == 2u) { - if (self->private_impl.f_bits_per_pixel == 4u) { - self->private_impl.f_src_pixfmt = 2198077448u; - } else { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - } else if (self->private_impl.f_compression == 3u) { - if ((self->private_impl.f_bits_per_pixel == 16u) || (self->private_impl.f_bits_per_pixel == 32u)) { - self->private_impl.f_src_pixfmt = 2164308923u; - } else { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - } else { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - if (((self->private_impl.f_bitmap_info_len < 40u) || (self->private_impl.f_bitmap_info_len == 64u)) && - (self->private_impl.f_bits_per_pixel != 1u) && - (self->private_impl.f_bits_per_pixel != 4u) && - (self->private_impl.f_bits_per_pixel != 8u) && - (self->private_impl.f_bits_per_pixel != 24u)) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; - } - if (self->private_impl.f_bits_per_pixel == 1u) { - v_byte_width = ((self->private_impl.f_width >> 3u) + (((self->private_impl.f_width & 7u) + 7u) >> 3u)); - self->private_impl.f_pad_per_row = ((4u - (v_byte_width & 3u)) & 3u); - } else if (self->private_impl.f_bits_per_pixel == 2u) { - v_byte_width = ((self->private_impl.f_width >> 2u) + (((self->private_impl.f_width & 3u) + 3u) >> 2u)); - self->private_impl.f_pad_per_row = ((4u - (v_byte_width & 3u)) & 3u); - } else if (self->private_impl.f_bits_per_pixel == 4u) { - v_byte_width = ((self->private_impl.f_width >> 1u) + (self->private_impl.f_width & 1u)); - self->private_impl.f_pad_per_row = ((4u - (v_byte_width & 3u)) & 3u); - } else if (self->private_impl.f_bits_per_pixel == 8u) { - self->private_impl.f_pad_per_row = ((4u - (self->private_impl.f_width & 3u)) & 3u); - } else if (self->private_impl.f_bits_per_pixel == 16u) { - self->private_impl.f_pad_per_row = ((self->private_impl.f_width & 1u) * 2u); - } else if (self->private_impl.f_bits_per_pixel == 24u) { - self->private_impl.f_pad_per_row = (self->private_impl.f_width & 3u); - } else if (self->private_impl.f_bits_per_pixel == 32u) { - self->private_impl.f_pad_per_row = 0u; - } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - if (a_dst != NULL) { - v_dst_pixfmt = 2164295816u; - if ((self->private_impl.f_channel_num_bits[0u] > 8u) || - (self->private_impl.f_channel_num_bits[1u] > 8u) || - (self->private_impl.f_channel_num_bits[2u] > 8u) || - (self->private_impl.f_channel_num_bits[3u] > 8u)) { - v_dst_pixfmt = 2164308923u; - } - wuffs_base__image_config__set( - a_dst, - v_dst_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - (self->private_impl.f_channel_masks[3u] == 0u)); +#endif + conv3func = &wuffs_private_impl__swizzle_ycc__convert_3_rgbx; + break; + default: + conv3func = &wuffs_private_impl__swizzle_ycc__convert_3_general; + break; } - self->private_impl.f_call_sequence = 32u; - - ok: - self->private_impl.p_do_decode_image_config[0] = 0; - goto exit; } - goto suspend; - suspend: - self->private_impl.p_do_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + void (*func3)(wuffs_base__pixel_buffer * dst, // + uint32_t x_min_incl, // + uint32_t x_max_excl, // + uint32_t y_min_incl, // + uint32_t y_max_excl, // + const uint8_t* src_ptr0, // + const uint8_t* src_ptr1, // + const uint8_t* src_ptr2, // + uint32_t stride0, // + uint32_t stride1, // + uint32_t stride2, // + uint32_t inv_h0, // + uint32_t inv_h1, // + uint32_t inv_h2, // + uint32_t inv_v0, // + uint32_t inv_v1, // + uint32_t inv_v2, // + uint32_t half_width_for_2to1, // + uint32_t half_height_for_2to1, // + uint8_t* scratch_buffer_2k_ptr, // + wuffs_private_impl__swizzle_ycc__upsample_func(*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_3_func conv3func) = + &wuffs_private_impl__swizzle_ycc__general__box_filter; + + void (*func4)(wuffs_base__pixel_buffer * dst, // + uint32_t x_min_incl, // + uint32_t x_max_excl, // + uint32_t y_min_incl, // + uint32_t y_max_excl, // + const uint8_t* src_ptr0, // + const uint8_t* src_ptr1, // + const uint8_t* src_ptr2, // + const uint8_t* src_ptr3, // + uint32_t stride0, // + uint32_t stride1, // + uint32_t stride2, // + uint32_t stride3, // + uint32_t inv_h0, // + uint32_t inv_h1, // + uint32_t inv_h2, // + uint32_t inv_h3, // + uint32_t inv_v0, // + uint32_t inv_v1, // + uint32_t inv_v2, // + uint32_t inv_v3, // + uint32_t half_width_for_2to1, // + uint32_t half_height_for_2to1, // + uint8_t* scratch_buffer_2k_ptr, // + wuffs_private_impl__swizzle_ycc__upsample_func(*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_4_func conv4func) = + &wuffs_private_impl__swizzle_ycck__general__box_filter; + + wuffs_private_impl__swizzle_ycc__upsample_func upfuncs[4][4]; + memcpy(&upfuncs, &wuffs_private_impl__swizzle_ycc__upsample_funcs, + sizeof upfuncs); - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (triangle_filter_for_2to1 && + (wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h0, inv_v0) || + wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h1, inv_v1) || + wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h2, inv_v2) || + wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h3, inv_v3))) { + func3 = &wuffs_private_impl__swizzle_ycc__general__triangle_filter; + func4 = &wuffs_private_impl__swizzle_ycck__general__triangle_filter; + + upfuncs[0][1] = wuffs_private_impl__swizzle_ycc__upsample_inv_h1v2_triangle; + upfuncs[1][0] = wuffs_private_impl__swizzle_ycc__upsample_inv_h2v1_triangle; + upfuncs[1][1] = wuffs_private_impl__swizzle_ycc__upsample_inv_h2v2_triangle; + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +#if defined(__GNUC__) && !defined(__clang__) + // Don't use our AVX2 implementation for GCC (but do use it for clang). For + // some unknown reason, GCC performs noticably better on the non-SIMD + // version. Possibly because GCC's auto-vectorizer is smarter (just with + // SSE2, not AVX2) than our hand-written code, but that's just a guess. + // + // See commits 51bc60ef9298cb2efc1b29a9681191f66d49820d and + // cd769a0cdf1b5affee13f6089b995f3d39569cb4 for benchmark numbers. + // + // See also https://godbolt.org/z/MbhbPGEz4 for Debian Bullseye's clang 11 + // versus gcc 10, where only gcc auto-vectorizes, although later clang + // versions will also auto-vectorize. +#else + if (wuffs_base__cpu_arch__have_x86_avx2()) { + upfuncs[1][1] = + wuffs_private_impl__swizzle_ycc__upsample_inv_h2v2_triangle_x86_avx2; + } +#endif +#endif } - return status; -} - -// -------- func bmp.decoder.decode_frame_config + if ((h3 != 0u) || (v3 != 0u)) { + wuffs_private_impl__swizzle_ycc__convert_4_func conv4func = + is_rgb_or_cmyk ? &wuffs_private_impl__swizzle_cmyk__convert_4_general + : &wuffs_private_impl__swizzle_ycck__convert_4_general; + (*func4)( // + dst, x_min_incl, x_max_excl, y_min_incl, y_max_excl, // + src0.ptr, src1.ptr, src2.ptr, src3.ptr, // + stride0, stride1, stride2, stride3, // + inv_h0, inv_h1, inv_h2, inv_h3, // + inv_v0, inv_v1, inv_v2, inv_v3, // + half_width_for_2to1, half_height_for_2to1, // + scratch_buffer_2k.ptr, &upfuncs, conv4func); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_bmp__decoder__decode_frame_config( - wuffs_bmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } else { + (*func3)( // + dst, x_min_incl, x_max_excl, y_min_incl, y_max_excl, // + src0.ptr, src1.ptr, src2.ptr, // + stride0, stride1, stride2, // + inv_h0, inv_h1, inv_h2, // + inv_v0, inv_v1, inv_v2, // + half_width_for_2to1, half_height_for_2to1, // + scratch_buffer_2k.ptr, &upfuncs, conv3func); } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + return wuffs_base__make_status(NULL); +} - while (true) { - { - wuffs_base__status t_0 = wuffs_bmp__decoder__do_decode_frame_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_bmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } +// -------- - ok: - self->private_impl.p_decode_frame_config[0] = 0; - goto exit; +// ‼ WUFFS MULTI-FILE SECTION +x86_avx2 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") +static void // +wuffs_private_impl__swizzle_ycc__convert_3_bgrx_x86_avx2( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2) { + if ((x + 32u) > x_end) { + wuffs_private_impl__swizzle_ycc__convert_3_bgrx( // + dst, x, x_end, y, up0, up1, up2); + return; } - goto suspend; - suspend: - self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + size_t dst_stride = dst->private_impl.planes[0].stride; + uint8_t* dst_iter = dst->private_impl.planes[0].ptr + + (dst_stride * ((size_t)y)) + (4u * ((size_t)x)); - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} + // u0001 = u16x16 [0x0001 .. 0x0001] + // u00FF = u16x16 [0x00FF .. 0x00FF] + // uFF80 = u16x16 [0xFF80 .. 0xFF80] + // uFFFF = u16x16 [0xFFFF .. 0xFFFF] + const __m256i u0001 = _mm256_set1_epi16(+0x0001); + const __m256i u00FF = _mm256_set1_epi16(+0x00FF); + const __m256i uFF80 = _mm256_set1_epi16(-0x0080); + const __m256i uFFFF = _mm256_set1_epi16(-0x0001); -// -------- func bmp.decoder.do_decode_frame_config + // p8000_p0000 = u16x16 [0x8000 0x0000 .. 0x8000 0x0000] + const __m256i p8000_p0000 = _mm256_set_epi16( // + +0x0000, -0x8000, +0x0000, -0x8000, // + +0x0000, -0x8000, +0x0000, -0x8000, // + +0x0000, -0x8000, +0x0000, -0x8000, // + +0x0000, -0x8000, +0x0000, -0x8000); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__do_decode_frame_config( - wuffs_bmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); + // Per wuffs_base__color_ycc__as__color_u32, the formulae: + // + // R = Y + 1.40200 * Cr + // G = Y - 0.34414 * Cb - 0.71414 * Cr + // B = Y + 1.77200 * Cb + // + // When scaled by 1<<16: + // + // 0.34414 becomes 0x0581A = 22554. + // 0.71414 becomes 0x0B6D2 = 46802. + // 1.40200 becomes 0x166E9 = 91881. + // 1.77200 becomes 0x1C5A2 = 116130. + // + // Separate the integer and fractional parts, since we work with signed + // 16-bit SIMD lanes. The fractional parts range from -0.5 .. +0.5 (as + // floating-point) which is from -0x8000 .. +0x8000 (as fixed-point). + // + // -0x3A5E = -0x20000 + 0x1C5A2 The B:Cb factor. + // +0x66E9 = -0x10000 + 0x166E9 The R:Cr factor. + // -0x581A = +0x00000 - 0x0581A The G:Cb factor. + // +0x492E = +0x10000 - 0x0B6D2 The G:Cr factor. + const __m256i m3A5E = _mm256_set1_epi16(-0x3A5E); + const __m256i p66E9 = _mm256_set1_epi16(+0x66E9); + const __m256i m581A_p492E = _mm256_set_epi16( // + +0x492E, -0x581A, +0x492E, -0x581A, // + +0x492E, -0x581A, +0x492E, -0x581A, // + +0x492E, -0x581A, +0x492E, -0x581A, // + +0x492E, -0x581A, +0x492E, -0x581A); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + while (x < x_end) { + // Load chroma values in even and odd columns (the high 8 bits of each + // u16x16 element are zero) and then subtract 0x0080. + // + // cb_all = u8x32 [cb.00 cb.01 cb.02 cb.03 .. cb.1C cb.1D cb.1E cb.1F] + // cb_eve = i16x16 [cb.00-0x80 cb.02-0x80 .. cb.1C-0x80 cb.1E-0x80 ] + // cb_odd = i16x16 [cb.01-0x80 cb.03-0x80 .. cb.1D-0x80 cb.1F-0x80 ] + // + // Ditto for the cr_xxx Chroma-Red values. + __m256i cb_all = _mm256_lddqu_si256((const __m256i*)(const void*)up1); + __m256i cr_all = _mm256_lddqu_si256((const __m256i*)(const void*)up2); + __m256i cb_eve = _mm256_add_epi16(uFF80, _mm256_and_si256(cb_all, u00FF)); + __m256i cr_eve = _mm256_add_epi16(uFF80, _mm256_and_si256(cr_all, u00FF)); + __m256i cb_odd = _mm256_add_epi16(uFF80, _mm256_srli_epi16(cb_all, 8)); + __m256i cr_odd = _mm256_add_epi16(uFF80, _mm256_srli_epi16(cr_all, 8)); - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + // ---- - if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_bmp__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; - } - } else if (self->private_impl.f_call_sequence == 64u) { - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height), - ((wuffs_base__flicks)(0u)), - 0u, - self->private_impl.f_frame_config_io_position, - 0u, - true, - false, - 4278190080u); - } - self->private_impl.f_call_sequence = 64u; + // Calculate: + // + // B-Y = (+1.77200 * Cb) as floating-point + // R-Y = (+1.40200 * Cr) as floating-point + // + // B-Y = ((0x2_0000 - 0x3A5E) * Cb) as fixed-point + // R-Y = ((0x1_0000 + 0x66E9) * Cr) as fixed-point + // + // B-Y = ((-0x3A5E * Cb) + ("2.0" * Cb)) + // R-Y = ((+0x66E9 * Cr) + ("1.0" * Cr)) - ok: - self->private_impl.p_do_decode_frame_config[0] = 0; - goto exit; - } + // Multiply by m3A5E or p66E9, taking the high 16 bits. There's also a + // doubling (add x to itself), adding-of-1 and halving (shift right by 1). + // That makes multiply-and-take-high round to nearest (instead of down). + __m256i tmp_by_eve = _mm256_srai_epi16( + _mm256_add_epi16( + _mm256_mulhi_epi16(_mm256_add_epi16(cb_eve, cb_eve), m3A5E), u0001), + 1); + __m256i tmp_by_odd = _mm256_srai_epi16( + _mm256_add_epi16( + _mm256_mulhi_epi16(_mm256_add_epi16(cb_odd, cb_odd), m3A5E), u0001), + 1); + __m256i tmp_ry_eve = _mm256_srai_epi16( + _mm256_add_epi16( + _mm256_mulhi_epi16(_mm256_add_epi16(cr_eve, cr_eve), p66E9), u0001), + 1); + __m256i tmp_ry_odd = _mm256_srai_epi16( + _mm256_add_epi16( + _mm256_mulhi_epi16(_mm256_add_epi16(cr_odd, cr_odd), p66E9), u0001), + 1); - goto suspend; - suspend: - self->private_impl.p_do_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + // Add (2 * Cb) and (1 * Cr). + __m256i by_eve = + _mm256_add_epi16(tmp_by_eve, _mm256_add_epi16(cb_eve, cb_eve)); + __m256i by_odd = + _mm256_add_epi16(tmp_by_odd, _mm256_add_epi16(cb_odd, cb_odd)); + __m256i ry_eve = _mm256_add_epi16(tmp_ry_eve, cr_eve); + __m256i ry_odd = _mm256_add_epi16(tmp_ry_odd, cr_odd); - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } + // ---- - return status; -} + // Calculate: + // + // G-Y = (-0.34414 * Cb) + + // (-0.71414 * Cr) as floating-point + // + // G-Y = ((+0x0_0000 - 0x581A) * Cb) + + // ((-0x1_0000 + 0x492E) * Cr) as fixed-point + // + // G-Y = (-0x581A * Cb) + + // (+0x492E * Cr) - ("1.0" * Cr) -// -------- func bmp.decoder.decode_frame + // Multiply-add to get ((-0x581A * Cb) + (+0x492E * Cr)). + __m256i tmp0_gy_eve_lo = _mm256_madd_epi16( // + _mm256_unpacklo_epi16(cb_eve, cr_eve), m581A_p492E); + __m256i tmp0_gy_eve_hi = _mm256_madd_epi16( // + _mm256_unpackhi_epi16(cb_eve, cr_eve), m581A_p492E); + __m256i tmp0_gy_odd_lo = _mm256_madd_epi16( // + _mm256_unpacklo_epi16(cb_odd, cr_odd), m581A_p492E); + __m256i tmp0_gy_odd_hi = _mm256_madd_epi16( // + _mm256_unpackhi_epi16(cb_odd, cr_odd), m581A_p492E); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_bmp__decoder__decode_frame( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); + // Divide the i32x8 vectors by (1 << 16), rounding to nearest. + __m256i tmp1_gy_eve_lo = + _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_eve_lo, p8000_p0000), 16); + __m256i tmp1_gy_eve_hi = + _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_eve_hi, p8000_p0000), 16); + __m256i tmp1_gy_odd_lo = + _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_odd_lo, p8000_p0000), 16); + __m256i tmp1_gy_odd_hi = + _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_odd_hi, p8000_p0000), 16); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + // Pack the ((-0x581A * Cb) + (+0x492E * Cr)) as i16x16 and subtract Cr. + __m256i gy_eve = _mm256_sub_epi16( + _mm256_packs_epi32(tmp1_gy_eve_lo, tmp1_gy_eve_hi), cr_eve); + __m256i gy_odd = _mm256_sub_epi16( + _mm256_packs_epi32(tmp1_gy_odd_lo, tmp1_gy_odd_hi), cr_odd); - uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + // ---- - while (true) { - { - wuffs_base__status t_0 = wuffs_bmp__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_bmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } + // Add Y to (B-Y), (G-Y) and (R-Y) to produce B, G and R. + // + // For the resultant packed_x_xxx vectors, only elements 0 ..= 7 and 16 ..= + // 23 of the 32-element vectors matter (since we'll unpacklo but not + // unpackhi them). Let … denote 8 ignored consecutive u8 values and let % + // denote 0xFF. We'll end this section with: + // + // packed_b_eve = u8x32 [b00 b02 .. b0C b0E … b10 b12 .. b1C b1E …] + // packed_b_odd = u8x32 [b01 b03 .. b0D b0F … b11 b13 .. b1D b1F …] + // packed_g_eve = u8x32 [g00 g02 .. g0C g0E … g10 g12 .. g1C g1E …] + // packed_g_odd = u8x32 [g01 g03 .. g0D g0F … g11 g13 .. g1D g1F …] + // packed_r_eve = u8x32 [r00 r02 .. r0C r0E … r10 r12 .. r1C r1E …] + // packed_r_odd = u8x32 [r01 r03 .. r0D r0F … r11 r13 .. r1D r1F …] + // uFFFF = u8x32 [ % % .. % % … % % .. % % …] - ok: - self->private_impl.p_decode_frame[0] = 0; - goto exit; - } + __m256i yy_all = _mm256_lddqu_si256((const __m256i*)(const void*)up0); + __m256i yy_eve = _mm256_and_si256(yy_all, u00FF); + __m256i yy_odd = _mm256_srli_epi16(yy_all, 8); - goto suspend; - suspend: - self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + __m256i loose_b_eve = _mm256_add_epi16(by_eve, yy_eve); + __m256i loose_b_odd = _mm256_add_epi16(by_odd, yy_odd); + __m256i packed_b_eve = _mm256_packus_epi16(loose_b_eve, loose_b_eve); + __m256i packed_b_odd = _mm256_packus_epi16(loose_b_odd, loose_b_odd); - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} + __m256i loose_g_eve = _mm256_add_epi16(gy_eve, yy_eve); + __m256i loose_g_odd = _mm256_add_epi16(gy_odd, yy_odd); + __m256i packed_g_eve = _mm256_packus_epi16(loose_g_eve, loose_g_eve); + __m256i packed_g_odd = _mm256_packus_epi16(loose_g_odd, loose_g_odd); -// -------- func bmp.decoder.do_decode_frame + __m256i loose_r_eve = _mm256_add_epi16(ry_eve, yy_eve); + __m256i loose_r_odd = _mm256_add_epi16(ry_odd, yy_odd); + __m256i packed_r_eve = _mm256_packus_epi16(loose_r_eve, loose_r_eve); + __m256i packed_r_odd = _mm256_packus_epi16(loose_r_odd, loose_r_odd); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__do_decode_frame( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - wuffs_base__status status = wuffs_base__make_status(NULL); + // ---- - wuffs_base__status v_status = wuffs_base__make_status(NULL); + // Mix those values (unpacking in 8, 16 and then 32 bit units) to get the + // desired BGRX/RGBX order. + // + // From here onwards, all of our __m256i registers are u8x32. - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + // mix00 = [b00 g00 b02 g02 .. b0E g0E b10 g10 .. b1C g1C b1E g1E] + // mix01 = [b01 g01 b03 g03 .. b0F g0F b11 g11 .. b1D g1D b1F g1F] + // mix02 = [r00 % r02 % .. r0E % r10 % .. r1C % r1E %] + // mix03 = [r01 % r03 % .. r0F % r11 % .. r1D % r1F %] + // + // See also § below. + __m256i mix00 = _mm256_unpacklo_epi8(packed_b_eve, packed_g_eve); + __m256i mix01 = _mm256_unpacklo_epi8(packed_b_odd, packed_g_odd); + __m256i mix02 = _mm256_unpacklo_epi8(packed_r_eve, uFFFF); + __m256i mix03 = _mm256_unpacklo_epi8(packed_r_odd, uFFFF); - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + // mix10 = [b00 g00 r00 % b02 g02 r02 % b04 g04 r04 % b06 g06 r06 % + // b10 g10 r10 % b12 g12 r12 % b14 g14 r14 % b16 g16 r16 %] + // mix11 = [b01 g01 r01 % b03 g03 r03 % b05 g05 r05 % b07 g07 r07 % + // b11 g11 r11 % b13 g13 r13 % b15 g15 r15 % b17 g17 r17 %] + // mix12 = [b08 g08 r08 % b0A g0A r0A % b0C g0C r0C % b0E g0E r0E % + // b18 g18 r18 % b1A g1A r1A % b1C g1C r1C % b1E g1E r1E %] + // mix13 = [b09 g09 r09 % b0B g0B r0B % b0D g0D r0D % b0F g0F r0F % + // b19 g19 r19 % b1B g1B r1B % b1D g1D r1D % b1F g1F r1F %] + __m256i mix10 = _mm256_unpacklo_epi16(mix00, mix02); + __m256i mix11 = _mm256_unpacklo_epi16(mix01, mix03); + __m256i mix12 = _mm256_unpackhi_epi16(mix00, mix02); + __m256i mix13 = _mm256_unpackhi_epi16(mix01, mix03); - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_bmp__decoder__do_decode_frame_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - self->private_data.s_do_decode_frame[0].scratch = self->private_impl.f_padding; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (self->private_data.s_do_decode_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame[0].scratch; - if ((self->private_impl.f_width > 0u) && (self->private_impl.f_height > 0u)) { - self->private_impl.f_dst_x = 0u; - if (self->private_impl.f_top_down) { - self->private_impl.f_dst_y = 0u; - self->private_impl.f_dst_y_inc = 1u; - } else { - self->private_impl.f_dst_y = ((uint32_t)(self->private_impl.f_height - 1u)); - self->private_impl.f_dst_y_inc = 4294967295u; - } - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)), - wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), - wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - while (true) { - if (self->private_impl.f_compression == 0u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_status = wuffs_bmp__decoder__swizzle_none(self, a_dst, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } else if (self->private_impl.f_compression < 3u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_status = wuffs_bmp__decoder__swizzle_rle(self, a_dst, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } else if (self->private_impl.f_compression == 3u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_status = wuffs_bmp__decoder__swizzle_bitfields(self, a_dst, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } else { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_status = wuffs_bmp__decoder__swizzle_low_bit_depth(self, a_dst, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - if (wuffs_base__status__is_ok(&v_status)) { - break; - } else if (v_status.repr != wuffs_bmp__note__internal_note_short_read) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - } - self->private_data.s_do_decode_frame[0].scratch = self->private_impl.f_pending_pad; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (self->private_data.s_do_decode_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame[0].scratch; - self->private_impl.f_pending_pad = 0u; - } - self->private_impl.f_call_sequence = 96u; + // mix20 = [b00 g00 r00 % b01 g01 r01 % b02 g02 r02 % b03 g03 r03 % + // b10 g10 r10 % b11 g11 r11 % b12 g12 r12 % b13 g13 r13 %] + // mix21 = [b04 g04 r04 % b05 g05 r05 % b06 g06 r06 % b07 g07 r07 % + // b14 g14 r14 % b15 g15 r15 % b16 g16 r16 % b17 g17 r17 %] + // mix22 = [b08 g08 r08 % b09 g09 r09 % b0A g0A r0A % b0B g0B r0B % + // b18 g18 r18 % b19 g19 r19 % b1A g1A r1A % b1B g1B r1B %] + // mix23 = [b0C g0C r0C % b0D g0D r0D % b0E g0E r0E % b0F g0F r0F % + // b1C g1C r1C % b1D g1D r1D % b1E g1E r1E % b1F g1F r1F %] + __m256i mix20 = _mm256_unpacklo_epi32(mix10, mix11); + __m256i mix21 = _mm256_unpackhi_epi32(mix10, mix11); + __m256i mix22 = _mm256_unpacklo_epi32(mix12, mix13); + __m256i mix23 = _mm256_unpackhi_epi32(mix12, mix13); - ok: - self->private_impl.p_do_decode_frame[0] = 0; - goto exit; - } + // mix30 = [b00 g00 r00 % b01 g01 r01 % b02 g02 r02 % b03 g03 r03 % + // b04 g04 r04 % b05 g05 r05 % b06 g06 r06 % b07 g07 r07 %] + // mix31 = [b08 g08 r08 % b09 g09 r09 % b0A g0A r0A % b0B g0B r0B % + // b0C g0C r0C % b0D g0D r0D % b0E g0E r0E % b0F g0F r0F %] + // mix32 = [b10 g10 r10 % b11 g11 r11 % b12 g12 r12 % b13 g13 r13 % + // b14 g14 r14 % b15 g15 r15 % b16 g16 r16 % b17 g17 r17 %] + // mix33 = [b18 g18 r18 % b19 g19 r19 % b1A g1A r1A % b1B g1B r1B % + // b1C g1C r1C % b1D g1D r1D % b1E g1E r1E % b1F g1F r1F %] + __m256i mix30 = _mm256_permute2x128_si256(mix20, mix21, 0x20); + __m256i mix31 = _mm256_permute2x128_si256(mix22, mix23, 0x20); + __m256i mix32 = _mm256_permute2x128_si256(mix20, mix21, 0x31); + __m256i mix33 = _mm256_permute2x128_si256(mix22, mix23, 0x31); - goto suspend; - suspend: - self->private_impl.p_do_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + // Write out four u8x32 SIMD registers (128 bytes, 32 BGRX/RGBX pixels). + _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x00), mix30); + _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x20), mix31); + _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x40), mix32); + _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x60), mix33); - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + // Advance by up to 32 pixels. The first iteration might be smaller than 32 + // so that all of the remaining steps are exactly 32. + uint32_t n = 32u - (31u & (x - x_end)); + dst_iter += 4u * n; + up0 += n; + up1 += n; + up2 += n; + x += n; } - - return status; } -// -------- func bmp.decoder.swizzle_none +// The rgbx flavor (below) is exactly the same as the bgrx flavor (above) +// except for the lines marked with a § and that comments were stripped. +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") +static void // +wuffs_private_impl__swizzle_ycc__convert_3_rgbx_x86_avx2( + wuffs_base__pixel_buffer* dst, + uint32_t x, + uint32_t x_end, + uint32_t y, + const uint8_t* up0, + const uint8_t* up1, + const uint8_t* up2) { + if ((x + 32u) > x_end) { + wuffs_private_impl__swizzle_ycc__convert_3_bgrx( // + dst, x, x_end, y, up0, up1, up2); + return; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__swizzle_none( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); + size_t dst_stride = dst->private_impl.planes[0].stride; + uint8_t* dst_iter = dst->private_impl.planes[0].ptr + + (dst_stride * ((size_t)y)) + (4u * ((size_t)x)); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row = 0; - uint32_t v_src_bytes_per_pixel = 0; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_i = 0; - uint64_t v_j = 0; - uint64_t v_n = 0; + const __m256i u0001 = _mm256_set1_epi16(+0x0001); + const __m256i u00FF = _mm256_set1_epi16(+0x00FF); + const __m256i uFF80 = _mm256_set1_epi16(-0x0080); + const __m256i uFFFF = _mm256_set1_epi16(-0x0001); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + const __m256i p8000_p0000 = _mm256_set_epi16( // + +0x0000, -0x8000, +0x0000, -0x8000, // + +0x0000, -0x8000, +0x0000, -0x8000, // + +0x0000, -0x8000, +0x0000, -0x8000, // + +0x0000, -0x8000, +0x0000, -0x8000); - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - label__outer__continue:; - while (true) { - while (self->private_impl.f_pending_pad > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); - goto ok; - } - self->private_impl.f_pending_pad -= 1u; - iop_a_src += 1u; - } - while (true) { - if (self->private_impl.f_dst_x == self->private_impl.f_width) { - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - if (self->private_impl.f_height > 0u) { - self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; - } - goto label__outer__break; - } else if (self->private_impl.f_pad_per_row != 0u) { - self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; - goto label__outer__continue; - } - } - v_dst = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); - } - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); - if (v_i >= ((uint64_t)(v_dst.len))) { - if (self->private_impl.f_bits_per_pixel > 32u) { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - v_src_bytes_per_pixel = (self->private_impl.f_bits_per_pixel / 8u); - if (v_src_bytes_per_pixel == 0u) { - status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); - goto exit; - } - v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); - v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); - v_j = v_n; - while (v_j >= 8u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { - iop_a_src += (v_src_bytes_per_pixel * 8u); - } - v_j -= 8u; - } - while (v_j > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { - iop_a_src += (v_src_bytes_per_pixel * 1u); - } - v_j -= 1u; - } - } else { - v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( - &self->private_impl.f_swizzler, - wuffs_base__slice_u8__subslice_i(v_dst, v_i), - v_dst_palette, - &iop_a_src, - io2_a_src); - } - if (v_n == 0u) { - status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); - goto ok; - } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); - } - } - label__outer__break:; - status = wuffs_base__make_status(NULL); - goto ok; + const __m256i m3A5E = _mm256_set1_epi16(-0x3A5E); + const __m256i p66E9 = _mm256_set1_epi16(+0x66E9); + const __m256i m581A_p492E = _mm256_set_epi16( // + +0x492E, -0x581A, +0x492E, -0x581A, // + +0x492E, -0x581A, +0x492E, -0x581A, // + +0x492E, -0x581A, +0x492E, -0x581A, // + +0x492E, -0x581A, +0x492E, -0x581A); - ok: - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } + while (x < x_end) { + __m256i cb_all = _mm256_lddqu_si256((const __m256i*)(const void*)up1); + __m256i cr_all = _mm256_lddqu_si256((const __m256i*)(const void*)up2); + __m256i cb_eve = _mm256_add_epi16(uFF80, _mm256_and_si256(cb_all, u00FF)); + __m256i cr_eve = _mm256_add_epi16(uFF80, _mm256_and_si256(cr_all, u00FF)); + __m256i cb_odd = _mm256_add_epi16(uFF80, _mm256_srli_epi16(cb_all, 8)); + __m256i cr_odd = _mm256_add_epi16(uFF80, _mm256_srli_epi16(cr_all, 8)); - return status; -} + __m256i tmp_by_eve = _mm256_srai_epi16( + _mm256_add_epi16( + _mm256_mulhi_epi16(_mm256_add_epi16(cb_eve, cb_eve), m3A5E), u0001), + 1); + __m256i tmp_by_odd = _mm256_srai_epi16( + _mm256_add_epi16( + _mm256_mulhi_epi16(_mm256_add_epi16(cb_odd, cb_odd), m3A5E), u0001), + 1); + __m256i tmp_ry_eve = _mm256_srai_epi16( + _mm256_add_epi16( + _mm256_mulhi_epi16(_mm256_add_epi16(cr_eve, cr_eve), p66E9), u0001), + 1); + __m256i tmp_ry_odd = _mm256_srai_epi16( + _mm256_add_epi16( + _mm256_mulhi_epi16(_mm256_add_epi16(cr_odd, cr_odd), p66E9), u0001), + 1); -// -------- func bmp.decoder.swizzle_rle + __m256i by_eve = + _mm256_add_epi16(tmp_by_eve, _mm256_add_epi16(cb_eve, cb_eve)); + __m256i by_odd = + _mm256_add_epi16(tmp_by_odd, _mm256_add_epi16(cb_odd, cb_odd)); + __m256i ry_eve = _mm256_add_epi16(tmp_ry_eve, cr_eve); + __m256i ry_odd = _mm256_add_epi16(tmp_ry_odd, cr_odd); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__swizzle_rle( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); + __m256i tmp0_gy_eve_lo = _mm256_madd_epi16( // + _mm256_unpacklo_epi16(cb_eve, cr_eve), m581A_p492E); + __m256i tmp0_gy_eve_hi = _mm256_madd_epi16( // + _mm256_unpackhi_epi16(cb_eve, cr_eve), m581A_p492E); + __m256i tmp0_gy_odd_lo = _mm256_madd_epi16( // + _mm256_unpacklo_epi16(cb_odd, cr_odd), m581A_p492E); + __m256i tmp0_gy_odd_hi = _mm256_madd_epi16( // + _mm256_unpackhi_epi16(cb_odd, cr_odd), m581A_p492E); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row = 0; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_row = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_i = 0; - uint64_t v_n = 0; - uint32_t v_p0 = 0; - uint8_t v_code = 0; - uint8_t v_indexes[2] = {0}; - uint32_t v_rle_state = 0; - uint32_t v_chunk_bits = 0; - uint32_t v_chunk_count = 0; + __m256i tmp1_gy_eve_lo = + _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_eve_lo, p8000_p0000), 16); + __m256i tmp1_gy_eve_hi = + _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_eve_hi, p8000_p0000), 16); + __m256i tmp1_gy_odd_lo = + _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_odd_lo, p8000_p0000), 16); + __m256i tmp1_gy_odd_hi = + _mm256_srai_epi32(_mm256_add_epi32(tmp0_gy_odd_hi, p8000_p0000), 16); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + __m256i gy_eve = _mm256_sub_epi16( + _mm256_packs_epi32(tmp1_gy_eve_lo, tmp1_gy_eve_hi), cr_eve); + __m256i gy_odd = _mm256_sub_epi16( + _mm256_packs_epi32(tmp1_gy_odd_lo, tmp1_gy_odd_hi), cr_odd); - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_rle_state = self->private_impl.f_rle_state; - label__outer__continue:; - while (true) { - v_row = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_row.len))) { - v_row = wuffs_base__slice_u8__subslice_j(v_row, v_dst_bytes_per_row); - } - label__middle__continue:; - while (true) { - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); - if (v_i <= ((uint64_t)(v_row.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_row, v_i); - } else { - v_dst = wuffs_base__utility__empty_slice_u8(); - } - while (true) { - while (true) { - if (v_rle_state == 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; - } - v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - if (v_code == 0u) { - v_rle_state = 2u; - continue; - } - self->private_impl.f_rle_length = ((uint32_t)(v_code)); - v_rle_state = 1u; - continue; - } else if (v_rle_state == 1u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; - } - v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - if (self->private_impl.f_bits_per_pixel == 8u) { - v_p0 = 0u; - while (v_p0 < self->private_impl.f_rle_length) { - self->private_data.f_scratch[v_p0] = v_code; - v_p0 += 1u; - } - } else { - v_indexes[0u] = ((uint8_t)((v_code >> 4u))); - v_indexes[1u] = (v_code & 15u); - v_p0 = 0u; - while (v_p0 < self->private_impl.f_rle_length) { - self->private_data.f_scratch[(v_p0 + 0u)] = v_indexes[0u]; - self->private_data.f_scratch[(v_p0 + 1u)] = v_indexes[1u]; - v_p0 += 2u; - } - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_rle_length)); - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, self->private_impl.f_rle_length); - v_rle_state = 0u; - goto label__middle__continue; - } else if (v_rle_state == 2u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; - } - v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - if (v_code < 2u) { - if ((self->private_impl.f_dst_y >= self->private_impl.f_height) && (v_code == 0u)) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); - goto exit; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_dst, v_dst_palette, 18446744073709551615u); - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; - if (v_code > 0u) { - goto label__outer__break; - } - v_rle_state = 0u; - goto label__outer__continue; - } else if (v_code == 2u) { - v_rle_state = 4u; - continue; - } - self->private_impl.f_rle_length = ((uint32_t)(v_code)); - self->private_impl.f_rle_padded = ((self->private_impl.f_bits_per_pixel == 8u) && ((v_code & 1u) != 0u)); - v_rle_state = 3u; - continue; - } else if (v_rle_state == 3u) { - if (self->private_impl.f_bits_per_pixel == 8u) { - v_n = wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( - &self->private_impl.f_swizzler, - self->private_impl.f_rle_length, - v_dst, - v_dst_palette, - &iop_a_src, - io2_a_src); - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); - wuffs_base__u32__sat_sub_indirect(&self->private_impl.f_rle_length, ((uint32_t)(v_n))); - } else { - v_chunk_count = ((self->private_impl.f_rle_length + 3u) / 4u); - v_p0 = 0u; - while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 2u)) { - v_chunk_bits = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2u; - self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((15u & (v_chunk_bits >> 12u)))); - self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((15u & (v_chunk_bits >> 8u)))); - self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((15u & (v_chunk_bits >> 4u)))); - self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((15u & (v_chunk_bits >> 0u)))); - v_p0 = ((v_p0 & 255u) + 4u); - v_chunk_count -= 1u; - } - v_p0 = wuffs_base__u32__min(v_p0, self->private_impl.f_rle_length); - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, v_p0)); - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, v_p0); - wuffs_base__u32__sat_sub_indirect(&self->private_impl.f_rle_length, v_p0); - } - if (self->private_impl.f_rle_length > 0u) { - goto label__goto_suspend__break; - } - if (self->private_impl.f_rle_padded) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; - } - iop_a_src += 1u; - self->private_impl.f_rle_padded = false; - } - v_rle_state = 0u; - goto label__middle__continue; - } else if (v_rle_state == 4u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; - } - self->private_impl.f_rle_delta_x = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - v_rle_state = 5u; - continue; - } - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; - } - v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - if (self->private_impl.f_rle_delta_x > 0u) { - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_dst, v_dst_palette, ((uint64_t)(self->private_impl.f_rle_delta_x))); - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(self->private_impl.f_rle_delta_x))); - self->private_impl.f_rle_delta_x = 0u; - if (self->private_impl.f_dst_x > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); - goto exit; - } - } - if (v_code > 0u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_code -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - while (true) { - self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); - goto exit; - } - v_row = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_row.len))) { - v_row = wuffs_base__slice_u8__subslice_j(v_row, v_dst_bytes_per_row); - } - if (v_code <= 0u) { - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, ((uint64_t)(self->private_impl.f_dst_x))); - break; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, 18446744073709551615u); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_code -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } - } - v_rle_state = 0u; - goto label__middle__continue; - } - } - label__goto_suspend__break:; - self->private_impl.f_rle_state = v_rle_state; - status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); - goto ok; - } - } - label__outer__break:; - while (self->private_impl.f_dst_y < self->private_impl.f_height) { - v_row = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_row.len))) { - v_row = wuffs_base__slice_u8__subslice_j(v_row, v_dst_bytes_per_row); - } - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, 18446744073709551615u); - self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; - } - status = wuffs_base__make_status(NULL); - goto ok; + __m256i yy_all = _mm256_lddqu_si256((const __m256i*)(const void*)up0); + __m256i yy_eve = _mm256_and_si256(yy_all, u00FF); + __m256i yy_odd = _mm256_srli_epi16(yy_all, 8); - ok: - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } + __m256i loose_b_eve = _mm256_add_epi16(by_eve, yy_eve); + __m256i loose_b_odd = _mm256_add_epi16(by_odd, yy_odd); + __m256i packed_b_eve = _mm256_packus_epi16(loose_b_eve, loose_b_eve); + __m256i packed_b_odd = _mm256_packus_epi16(loose_b_odd, loose_b_odd); - return status; -} + __m256i loose_g_eve = _mm256_add_epi16(gy_eve, yy_eve); + __m256i loose_g_odd = _mm256_add_epi16(gy_odd, yy_odd); + __m256i packed_g_eve = _mm256_packus_epi16(loose_g_eve, loose_g_eve); + __m256i packed_g_odd = _mm256_packus_epi16(loose_g_odd, loose_g_odd); -// -------- func bmp.decoder.swizzle_bitfields + __m256i loose_r_eve = _mm256_add_epi16(ry_eve, yy_eve); + __m256i loose_r_odd = _mm256_add_epi16(ry_odd, yy_odd); + __m256i packed_r_eve = _mm256_packus_epi16(loose_r_eve, loose_r_eve); + __m256i packed_r_odd = _mm256_packus_epi16(loose_r_odd, loose_r_odd); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__swizzle_bitfields( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); + // § Note the swapped B and R channels. + __m256i mix00 = _mm256_unpacklo_epi8(packed_r_eve, packed_g_eve); + __m256i mix01 = _mm256_unpacklo_epi8(packed_r_odd, packed_g_odd); + __m256i mix02 = _mm256_unpacklo_epi8(packed_b_eve, uFFFF); + __m256i mix03 = _mm256_unpacklo_epi8(packed_b_odd, uFFFF); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row = 0; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_i = 0; - uint64_t v_n = 0; - uint32_t v_p0 = 0; - uint32_t v_p1 = 0; - uint32_t v_p1_temp = 0; - uint32_t v_num_bits = 0; - uint32_t v_c = 0; - uint32_t v_c32 = 0; - uint32_t v_channel = 0; + __m256i mix10 = _mm256_unpacklo_epi16(mix00, mix02); + __m256i mix11 = _mm256_unpacklo_epi16(mix01, mix03); + __m256i mix12 = _mm256_unpackhi_epi16(mix00, mix02); + __m256i mix13 = _mm256_unpackhi_epi16(mix01, mix03); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + __m256i mix20 = _mm256_unpacklo_epi32(mix10, mix11); + __m256i mix21 = _mm256_unpackhi_epi32(mix10, mix11); + __m256i mix22 = _mm256_unpacklo_epi32(mix12, mix13); + __m256i mix23 = _mm256_unpackhi_epi32(mix12, mix13); - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - label__outer__continue:; - while (true) { - while (self->private_impl.f_pending_pad > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); - goto ok; - } - self->private_impl.f_pending_pad -= 1u; - iop_a_src += 1u; - } - while (true) { - if (self->private_impl.f_dst_x == self->private_impl.f_width) { - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - if (self->private_impl.f_height > 0u) { - self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; - } - goto label__outer__break; - } else if (self->private_impl.f_pad_per_row != 0u) { - self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; - goto label__outer__continue; - } - } - v_p1_temp = ((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x)); - v_p1 = wuffs_base__u32__min(v_p1_temp, 256u); - v_p0 = 0u; - while (v_p0 < v_p1) { - if (self->private_impl.f_bits_per_pixel == 16u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - break; - } - v_c32 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2u; - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - break; - } - v_c32 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4u; - } - v_channel = 0u; - while (v_channel < 4u) { - if (self->private_impl.f_channel_num_bits[v_channel] == 0u) { - self->private_data.f_scratch[((8u * v_p0) + (2u * v_channel) + 0u)] = 255u; - self->private_data.f_scratch[((8u * v_p0) + (2u * v_channel) + 1u)] = 255u; - } else { - v_c = ((v_c32 & self->private_impl.f_channel_masks[v_channel]) >> self->private_impl.f_channel_shifts[v_channel]); - v_num_bits = ((uint32_t)(self->private_impl.f_channel_num_bits[v_channel])); - while (v_num_bits < 16u) { - v_c |= ((uint32_t)(v_c << v_num_bits)); - v_num_bits *= 2u; - } - v_c >>= (v_num_bits - 16u); - self->private_data.f_scratch[((8u * v_p0) + (2u * v_channel) + 0u)] = ((uint8_t)((v_c >> 0u))); - self->private_data.f_scratch[((8u * v_p0) + (2u * v_channel) + 1u)] = ((uint8_t)((v_c >> 8u))); - } - v_channel += 1u; - } - v_p0 += 1u; - } - v_dst = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); - } - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); - if (v_i >= ((uint64_t)(v_dst.len))) { - v_n = ((uint64_t)(v_p0)); - } else { - v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, (8u * v_p0))); - } - if (v_n == 0u) { - status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); - goto ok; - } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); - } - } - label__outer__break:; - status = wuffs_base__make_status(NULL); - goto ok; + __m256i mix30 = _mm256_permute2x128_si256(mix20, mix21, 0x20); + __m256i mix31 = _mm256_permute2x128_si256(mix22, mix23, 0x20); + __m256i mix32 = _mm256_permute2x128_si256(mix20, mix21, 0x31); + __m256i mix33 = _mm256_permute2x128_si256(mix22, mix23, 0x31); - ok: - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } + _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x00), mix30); + _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x20), mix31); + _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x40), mix32); + _mm256_storeu_si256((__m256i*)(void*)(dst_iter + 0x60), mix33); - return status; + uint32_t n = 32u - (31u & (x - x_end)); + dst_iter += 4u * n; + up0 += n; + up1 += n; + up2 += n; + x += n; + } } -// -------- func bmp.decoder.swizzle_low_bit_depth +#if defined(__GNUC__) && !defined(__clang__) +// No-op. +#else +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") +static const uint8_t* // +wuffs_private_impl__swizzle_ycc__upsample_inv_h2v2_triangle_x86_avx2( + uint8_t* dst_ptr, + const uint8_t* src_ptr_major, + const uint8_t* src_ptr_minor, + size_t src_len, + uint32_t h1v2_bias_ignored, + bool first_column, + bool last_column) { + uint8_t* dp = dst_ptr; + const uint8_t* sp_major = src_ptr_major; + const uint8_t* sp_minor = src_ptr_minor; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__swizzle_low_bit_depth( - wuffs_bmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); + if (first_column) { + src_len--; + if ((src_len <= 0u) && last_column) { + uint32_t sv = (12u * ((uint32_t)(*sp_major++))) + // + (4u * ((uint32_t)(*sp_minor++))); + *dp++ = (uint8_t)((sv + 8u) >> 4u); + *dp++ = (uint8_t)((sv + 7u) >> 4u); + return dst_ptr; + } - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row = 0; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_i = 0; - uint64_t v_n = 0; - uint32_t v_p0 = 0; - uint32_t v_chunk_bits = 0; - uint32_t v_chunk_count = 0; - uint32_t v_pixels_per_chunk = 0; + uint32_t sv_major_m1 = sp_major[-0]; // Clamp offset to zero. + uint32_t sv_minor_m1 = sp_minor[-0]; // Clamp offset to zero. + uint32_t sv_major_p1 = sp_major[+1]; + uint32_t sv_minor_p1 = sp_minor[+1]; - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // + (3u * ((uint32_t)(*sp_minor++))); + *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); + *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); + if (src_len <= 0u) { + return dst_ptr; + } } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - while (true) { - if (self->private_impl.f_dst_x == self->private_impl.f_width) { - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - break; - } - } - v_dst = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); - } - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); - if (v_i >= ((uint64_t)(v_dst.len))) { - if (self->private_impl.f_bits_per_pixel == 1u) { - v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 31u) / 32u); - v_pixels_per_chunk = 32u; - } else if (self->private_impl.f_bits_per_pixel == 2u) { - v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 15u) / 16u); - v_pixels_per_chunk = 16u; - } else { - v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 7u) / 8u); - v_pixels_per_chunk = 8u; - } - while ((v_chunk_count >= 64u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 256u)) { - iop_a_src += 256u; - self->private_impl.f_dst_x = wuffs_base__u32__min(self->private_impl.f_width, ((uint32_t)(self->private_impl.f_dst_x + (v_pixels_per_chunk * 64u)))); - v_chunk_count -= 64u; - } - while ((v_chunk_count >= 8u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 32u)) { - iop_a_src += 32u; - self->private_impl.f_dst_x = wuffs_base__u32__min(self->private_impl.f_width, ((uint32_t)(self->private_impl.f_dst_x + (v_pixels_per_chunk * 8u)))); - v_chunk_count -= 8u; - } - while (v_chunk_count > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); - goto ok; - } - iop_a_src += 4u; - self->private_impl.f_dst_x = wuffs_base__u32__min(self->private_impl.f_width, ((uint32_t)(self->private_impl.f_dst_x + (v_pixels_per_chunk * 1u)))); - v_chunk_count -= 1u; - } - continue; - } - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_i); - v_p0 = 0u; - if (self->private_impl.f_bits_per_pixel == 1u) { - v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 31u) / 32u); - v_chunk_count = wuffs_base__u32__min(v_chunk_count, 16u); - while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 4u)) { - v_chunk_bits = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4u; - self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((1u & (v_chunk_bits >> 31u)))); - self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((1u & (v_chunk_bits >> 30u)))); - self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((1u & (v_chunk_bits >> 29u)))); - self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((1u & (v_chunk_bits >> 28u)))); - self->private_data.f_scratch[(v_p0 + 4u)] = ((uint8_t)((1u & (v_chunk_bits >> 27u)))); - self->private_data.f_scratch[(v_p0 + 5u)] = ((uint8_t)((1u & (v_chunk_bits >> 26u)))); - self->private_data.f_scratch[(v_p0 + 6u)] = ((uint8_t)((1u & (v_chunk_bits >> 25u)))); - self->private_data.f_scratch[(v_p0 + 7u)] = ((uint8_t)((1u & (v_chunk_bits >> 24u)))); - self->private_data.f_scratch[(v_p0 + 8u)] = ((uint8_t)((1u & (v_chunk_bits >> 23u)))); - self->private_data.f_scratch[(v_p0 + 9u)] = ((uint8_t)((1u & (v_chunk_bits >> 22u)))); - self->private_data.f_scratch[(v_p0 + 10u)] = ((uint8_t)((1u & (v_chunk_bits >> 21u)))); - self->private_data.f_scratch[(v_p0 + 11u)] = ((uint8_t)((1u & (v_chunk_bits >> 20u)))); - self->private_data.f_scratch[(v_p0 + 12u)] = ((uint8_t)((1u & (v_chunk_bits >> 19u)))); - self->private_data.f_scratch[(v_p0 + 13u)] = ((uint8_t)((1u & (v_chunk_bits >> 18u)))); - self->private_data.f_scratch[(v_p0 + 14u)] = ((uint8_t)((1u & (v_chunk_bits >> 17u)))); - self->private_data.f_scratch[(v_p0 + 15u)] = ((uint8_t)((1u & (v_chunk_bits >> 16u)))); - self->private_data.f_scratch[(v_p0 + 16u)] = ((uint8_t)((1u & (v_chunk_bits >> 15u)))); - self->private_data.f_scratch[(v_p0 + 17u)] = ((uint8_t)((1u & (v_chunk_bits >> 14u)))); - self->private_data.f_scratch[(v_p0 + 18u)] = ((uint8_t)((1u & (v_chunk_bits >> 13u)))); - self->private_data.f_scratch[(v_p0 + 19u)] = ((uint8_t)((1u & (v_chunk_bits >> 12u)))); - self->private_data.f_scratch[(v_p0 + 20u)] = ((uint8_t)((1u & (v_chunk_bits >> 11u)))); - self->private_data.f_scratch[(v_p0 + 21u)] = ((uint8_t)((1u & (v_chunk_bits >> 10u)))); - self->private_data.f_scratch[(v_p0 + 22u)] = ((uint8_t)((1u & (v_chunk_bits >> 9u)))); - self->private_data.f_scratch[(v_p0 + 23u)] = ((uint8_t)((1u & (v_chunk_bits >> 8u)))); - self->private_data.f_scratch[(v_p0 + 24u)] = ((uint8_t)((1u & (v_chunk_bits >> 7u)))); - self->private_data.f_scratch[(v_p0 + 25u)] = ((uint8_t)((1u & (v_chunk_bits >> 6u)))); - self->private_data.f_scratch[(v_p0 + 26u)] = ((uint8_t)((1u & (v_chunk_bits >> 5u)))); - self->private_data.f_scratch[(v_p0 + 27u)] = ((uint8_t)((1u & (v_chunk_bits >> 4u)))); - self->private_data.f_scratch[(v_p0 + 28u)] = ((uint8_t)((1u & (v_chunk_bits >> 3u)))); - self->private_data.f_scratch[(v_p0 + 29u)] = ((uint8_t)((1u & (v_chunk_bits >> 2u)))); - self->private_data.f_scratch[(v_p0 + 30u)] = ((uint8_t)((1u & (v_chunk_bits >> 1u)))); - self->private_data.f_scratch[(v_p0 + 31u)] = ((uint8_t)((1u & (v_chunk_bits >> 0u)))); - v_p0 = ((v_p0 & 511u) + 32u); - v_chunk_count -= 1u; - } - } else if (self->private_impl.f_bits_per_pixel == 2u) { - v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 15u) / 16u); - v_chunk_count = wuffs_base__u32__min(v_chunk_count, 32u); - while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 4u)) { - v_chunk_bits = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4u; - self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((3u & (v_chunk_bits >> 30u)))); - self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((3u & (v_chunk_bits >> 28u)))); - self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((3u & (v_chunk_bits >> 26u)))); - self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((3u & (v_chunk_bits >> 24u)))); - self->private_data.f_scratch[(v_p0 + 4u)] = ((uint8_t)((3u & (v_chunk_bits >> 22u)))); - self->private_data.f_scratch[(v_p0 + 5u)] = ((uint8_t)((3u & (v_chunk_bits >> 20u)))); - self->private_data.f_scratch[(v_p0 + 6u)] = ((uint8_t)((3u & (v_chunk_bits >> 18u)))); - self->private_data.f_scratch[(v_p0 + 7u)] = ((uint8_t)((3u & (v_chunk_bits >> 16u)))); - self->private_data.f_scratch[(v_p0 + 8u)] = ((uint8_t)((3u & (v_chunk_bits >> 14u)))); - self->private_data.f_scratch[(v_p0 + 9u)] = ((uint8_t)((3u & (v_chunk_bits >> 12u)))); - self->private_data.f_scratch[(v_p0 + 10u)] = ((uint8_t)((3u & (v_chunk_bits >> 10u)))); - self->private_data.f_scratch[(v_p0 + 11u)] = ((uint8_t)((3u & (v_chunk_bits >> 8u)))); - self->private_data.f_scratch[(v_p0 + 12u)] = ((uint8_t)((3u & (v_chunk_bits >> 6u)))); - self->private_data.f_scratch[(v_p0 + 13u)] = ((uint8_t)((3u & (v_chunk_bits >> 4u)))); - self->private_data.f_scratch[(v_p0 + 14u)] = ((uint8_t)((3u & (v_chunk_bits >> 2u)))); - self->private_data.f_scratch[(v_p0 + 15u)] = ((uint8_t)((3u & (v_chunk_bits >> 0u)))); - v_p0 = ((v_p0 & 511u) + 16u); - v_chunk_count -= 1u; - } - } else { - v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 7u) / 8u); - v_chunk_count = wuffs_base__u32__min(v_chunk_count, 64u); - while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 4u)) { - v_chunk_bits = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4u; - self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((15u & (v_chunk_bits >> 28u)))); - self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((15u & (v_chunk_bits >> 24u)))); - self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((15u & (v_chunk_bits >> 20u)))); - self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((15u & (v_chunk_bits >> 16u)))); - self->private_data.f_scratch[(v_p0 + 4u)] = ((uint8_t)((15u & (v_chunk_bits >> 12u)))); - self->private_data.f_scratch[(v_p0 + 5u)] = ((uint8_t)((15u & (v_chunk_bits >> 8u)))); - self->private_data.f_scratch[(v_p0 + 6u)] = ((uint8_t)((15u & (v_chunk_bits >> 4u)))); - self->private_data.f_scratch[(v_p0 + 7u)] = ((uint8_t)((15u & (v_chunk_bits >> 0u)))); - v_p0 = ((v_p0 & 511u) + 8u); - v_chunk_count -= 1u; - } - } - v_p0 = wuffs_base__u32__min(v_p0, wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x)); - v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, v_p0)); - if (v_n == 0u) { - status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); - goto ok; - } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); - } - status = wuffs_base__make_status(NULL); - goto ok; - - ok: - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func bmp.decoder.frame_dirty_rect - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_bmp__decoder__frame_dirty_rect( - const wuffs_bmp__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); + if (last_column) { + src_len--; } - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} + if (src_len < 32) { + // This fallback is the same as the non-SIMD-capable code path. + for (; src_len > 0u; src_len--) { + uint32_t sv_major_m1 = sp_major[-1]; + uint32_t sv_minor_m1 = sp_minor[-1]; + uint32_t sv_major_p1 = sp_major[+1]; + uint32_t sv_minor_p1 = sp_minor[+1]; -// -------- func bmp.decoder.num_animation_loops + uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // + (3u * ((uint32_t)(*sp_minor++))); + *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); + *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); + } -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_bmp__decoder__num_animation_loops( - const wuffs_bmp__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + } else { + while (src_len > 0u) { + // Load 1+32+1 samples (six u8x32 vectors) from the major (jxx) and minor + // (nxx) rows. + // + // major_p0 = [j00 j01 j02 j03 .. j28 j29 j30 j31] // p0 = "plus 0" + // minor_p0 = [n00 n01 n02 n03 .. n28 n29 n30 n31] // p0 = "plus 0" + // major_m1 = [jm1 j00 j01 j02 .. j27 j28 j29 j30] // m1 = "minus 1" + // minor_m1 = [nm1 n00 n01 n02 .. n27 n28 n29 n30] // m1 = "minus 1" + // major_p1 = [j01 j02 j03 j04 .. j29 j30 j31 j32] // p1 = "plus 1" + // minor_p1 = [n01 n02 n03 n04 .. n29 n30 n31 n32] // p1 = "plus 1" + __m256i major_p0 = + _mm256_lddqu_si256((const __m256i*)(const void*)(sp_major + 0)); + __m256i minor_p0 = + _mm256_lddqu_si256((const __m256i*)(const void*)(sp_minor + 0)); + __m256i major_m1 = + _mm256_lddqu_si256((const __m256i*)(const void*)(sp_major - 1)); + __m256i minor_m1 = + _mm256_lddqu_si256((const __m256i*)(const void*)(sp_minor - 1)); + __m256i major_p1 = + _mm256_lddqu_si256((const __m256i*)(const void*)(sp_major + 1)); + __m256i minor_p1 = + _mm256_lddqu_si256((const __m256i*)(const void*)(sp_minor + 1)); - return 0u; -} + // Unpack, staying with u8x32 vectors. + // + // step1_p0_lo = [j00 n00 j01 n01 .. j07 n07 j16 n16 j17 n17 .. j23 n23] + // step1_p0_hi = [j08 n08 j09 n09 .. j15 n15 j24 n24 j25 n25 .. j31 n31] + // step1_m1_lo = [jm1 nm1 j00 n00 .. j06 n06 j15 n15 j16 n16 .. j22 n22] + // step1_m1_hi = [j07 n07 j08 n08 .. j14 n14 j23 n23 j24 n24 .. j30 n30] + // step1_p1_lo = [j01 n01 j02 n02 .. j08 n08 j17 n17 j18 n18 .. j24 n24] + // step1_p1_hi = [j09 n09 j10 n10 .. j16 n16 j25 n25 j26 n26 .. j32 n32] + __m256i step1_p0_lo = _mm256_unpacklo_epi8(major_p0, minor_p0); + __m256i step1_p0_hi = _mm256_unpackhi_epi8(major_p0, minor_p0); + __m256i step1_m1_lo = _mm256_unpacklo_epi8(major_m1, minor_m1); + __m256i step1_m1_hi = _mm256_unpackhi_epi8(major_m1, minor_m1); + __m256i step1_p1_lo = _mm256_unpacklo_epi8(major_p1, minor_p1); + __m256i step1_p1_hi = _mm256_unpackhi_epi8(major_p1, minor_p1); -// -------- func bmp.decoder.num_decoded_frame_configs + // Multiply-add to get u16x16 vectors. + // + // step2_p0_lo = [9*j00+3*n00 9*j01+3*n01 .. 9*j23+3*n23] + // step2_p0_hi = [9*j08+3*n08 9*j09+3*n09 .. 9*j31+3*n31] + // step2_m1_lo = [3*jm1+1*nm1 3*j00+1*n00 .. 3*j22+1*n22] + // step2_m1_hi = [3*j07+1*n07 3*j08+1*n08 .. 3*j30+1*n30] + // step2_p1_lo = [3*j01+1*n01 3*j02+1*n02 .. 3*j24+1*n24] + // step2_p1_hi = [3*j09+1*n09 3*j10+1*n10 .. 3*j32+1*n32] + const __m256i k0309 = _mm256_set1_epi16(0x0309); + const __m256i k0103 = _mm256_set1_epi16(0x0103); + __m256i step2_p0_lo = _mm256_maddubs_epi16(step1_p0_lo, k0309); + __m256i step2_p0_hi = _mm256_maddubs_epi16(step1_p0_hi, k0309); + __m256i step2_m1_lo = _mm256_maddubs_epi16(step1_m1_lo, k0103); + __m256i step2_m1_hi = _mm256_maddubs_epi16(step1_m1_hi, k0103); + __m256i step2_p1_lo = _mm256_maddubs_epi16(step1_p1_lo, k0103); + __m256i step2_p1_hi = _mm256_maddubs_epi16(step1_p1_hi, k0103); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_bmp__decoder__num_decoded_frame_configs( - const wuffs_bmp__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + // Compute the weighted sums of (p0, m1) and (p0, p1). For example: + // + // step3_m1_lo[00] = ((9*j00) + (3*n00) + (3*jm1) + (1*nm1)) as u16 + // step3_p1_hi[15] = ((9*j31) + (3*n31) + (3*j32) + (1*n32)) as u16 + __m256i step3_m1_lo = _mm256_add_epi16(step2_p0_lo, step2_m1_lo); + __m256i step3_m1_hi = _mm256_add_epi16(step2_p0_hi, step2_m1_hi); + __m256i step3_p1_lo = _mm256_add_epi16(step2_p0_lo, step2_p1_lo); + __m256i step3_p1_hi = _mm256_add_epi16(step2_p0_hi, step2_p1_hi); - if (self->private_impl.f_call_sequence > 32u) { - return 1u; - } - return 0u; -} + // Bias by 8 (on the left) or 7 (on the right) and then divide by 16 + // (which is 9+3+3+1) to get a weighted average. On the left (m1), shift + // the u16 right value by 4. On the right (p1), shift right by 4 and then + // shift left by 8 so that, when still in the u16x16 little-endian + // interpretation, we have: + // - m1_element = (etcetera + 8) >> 4 + // - p1_element = ((etcetera + 7) >> 4) << 8 + // + // step4_m1_lo = [0x00?? 0x00?? ... 0x00?? 0x00??] + // step4_p1_lo = [0x??00 0x??00 ... 0x??00 0x??00] + // step4_m1_hi = [0x00?? 0x00?? ... 0x00?? 0x00??] + // step4_p1_hi = [0x??00 0x??00 ... 0x??00 0x??00] + __m256i step4_m1_lo = _mm256_srli_epi16( + _mm256_add_epi16(step3_m1_lo, _mm256_set1_epi16(8)), 4); + __m256i step4_p1_lo = _mm256_slli_epi16( + _mm256_srli_epi16(_mm256_add_epi16(step3_p1_lo, _mm256_set1_epi16(7)), + 4), + 8); + __m256i step4_m1_hi = _mm256_srli_epi16( + _mm256_add_epi16(step3_m1_hi, _mm256_set1_epi16(8)), 4); + __m256i step4_p1_hi = _mm256_slli_epi16( + _mm256_srli_epi16(_mm256_add_epi16(step3_p1_hi, _mm256_set1_epi16(7)), + 4), + 8); -// -------- func bmp.decoder.num_decoded_frames + // Bitwise-or two "0x00"-rich u16x16 vectors to get a u8x32 vector. Do + // that twice. Once for the low columns and once for the high columns. + // + // In terms of jxx (major row) or nxx (minor row) source samples: + // - low columns means ( 0 .. 8; 16 .. 24). + // - high columns means ( 8 .. 16; 24 .. 32). + // + // In terms of dxx destination samples (there are twice as many): + // - low columns means ( 0 .. 16; 32 .. 48). + // - high columns means (16 .. 32; 48 .. 64). + // + // step5_lo = [d00 d01 .. d14 d15 d32 d33 .. d46 d47] + // step5_hi = [d16 d17 .. d30 d31 d48 d49 .. d62 d63] + // + // The d00, d02 ... d62 even elements come from (p0, m1) weighted sums. + // The d01, d03 ... d63 odd elements come from (p0, p1) weighted sums. + __m256i step5_lo = _mm256_or_si256(step4_m1_lo, step4_p1_lo); + __m256i step5_hi = _mm256_or_si256(step4_m1_hi, step4_p1_hi); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_bmp__decoder__num_decoded_frames( - const wuffs_bmp__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + // Permute and store. + // + // step6_00_31 = [d00 d01 .. d14 d15 d16 d17 .. d30 d31] + // step6_32_63 = [d32 d33 .. d46 d47 d48 d49 .. d62 d63] + __m256i step6_00_31 = _mm256_permute2x128_si256(step5_lo, step5_hi, 0x20); + __m256i step6_32_63 = _mm256_permute2x128_si256(step5_lo, step5_hi, 0x31); + _mm256_storeu_si256((__m256i*)(void*)(dp + 0x00), step6_00_31); + _mm256_storeu_si256((__m256i*)(void*)(dp + 0x20), step6_32_63); - if (self->private_impl.f_call_sequence > 64u) { - return 1u; + // Advance by up to 32 source samples (64 destination samples). The first + // iteration might be smaller than 32 so that all of the remaining steps + // are exactly 32. + size_t n = 32u - (31u & (0u - src_len)); + dp += 2u * n; + sp_major += n; + sp_minor += n; + src_len -= n; + } } - return 0u; -} -// -------- func bmp.decoder.restart_frame + if (last_column) { + uint32_t sv_major_m1 = sp_major[-1]; + uint32_t sv_minor_m1 = sp_minor[-1]; + uint32_t sv_major_p1 = sp_major[+0]; // Clamp offset to zero. + uint32_t sv_minor_p1 = sp_minor[+0]; // Clamp offset to zero. -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_bmp__decoder__restart_frame( - wuffs_bmp__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + uint32_t sv = (9u * ((uint32_t)(*sp_major++))) + // + (3u * ((uint32_t)(*sp_minor++))); + *dp++ = (uint8_t)((sv + (3u * sv_major_m1) + (sv_minor_m1) + 8u) >> 4u); + *dp++ = (uint8_t)((sv + (3u * sv_major_p1) + (sv_minor_p1) + 7u) >> 4u); } - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if (a_index != 0u) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - self->private_impl.f_call_sequence = 40u; - self->private_impl.f_frame_config_io_position = a_io_position; - return wuffs_base__make_status(NULL); + return dst_ptr; } +#endif +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +// ‼ WUFFS MULTI-FILE SECTION -x86_avx2 -// -------- func bmp.decoder.set_report_metadata - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_bmp__decoder__set_report_metadata( - wuffs_bmp__decoder* self, - uint32_t a_fourcc, - bool a_report) { - return wuffs_base__make_empty_struct(); -} +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__PIXCONV) -// -------- func bmp.decoder.tell_me_more +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__UTF8) -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_bmp__decoder__tell_me_more( - wuffs_bmp__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); +// ---------------- Unicode and UTF-8 - wuffs_base__status v_status = wuffs_base__make_status(NULL); +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__utf_8__encode(wuffs_base__slice_u8 dst, uint32_t code_point) { + if (code_point <= 0x7F) { + if (dst.len >= 1) { + dst.ptr[0] = (uint8_t)(code_point); + return 1; + } - uint32_t coro_susp_point = self->private_impl.p_tell_me_more[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + } else if (code_point <= 0x07FF) { + if (dst.len >= 2) { + dst.ptr[0] = (uint8_t)(0xC0 | ((code_point >> 6))); + dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); + return 2; + } - while (true) { - { - wuffs_base__status t_0 = wuffs_bmp__decoder__do_tell_me_more(self, a_dst, a_minfo, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_bmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } else if (code_point <= 0xFFFF) { + if ((dst.len >= 3) && ((code_point < 0xD800) || (0xDFFF < code_point))) { + dst.ptr[0] = (uint8_t)(0xE0 | ((code_point >> 12))); + dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 6) & 0x3F)); + dst.ptr[2] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); + return 3; } - ok: - self->private_impl.p_tell_me_more[0] = 0; - goto exit; + } else if (code_point <= 0x10FFFF) { + if (dst.len >= 4) { + dst.ptr[0] = (uint8_t)(0xF0 | ((code_point >> 18))); + dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 12) & 0x3F)); + dst.ptr[2] = (uint8_t)(0x80 | ((code_point >> 6) & 0x3F)); + dst.ptr[3] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); + return 4; + } } - goto suspend; - suspend: - self->private_impl.p_tell_me_more[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; + return 0; } -// -------- func bmp.decoder.do_tell_me_more - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__do_tell_me_more( - wuffs_bmp__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +// wuffs_base__utf_8__byte_length_minus_1 is the byte length (minus 1) of a +// UTF-8 encoded code point, based on the encoding's initial byte. +// - 0x00 is 1-byte UTF-8 (ASCII). +// - 0x01 is the start of 2-byte UTF-8. +// - 0x02 is the start of 3-byte UTF-8. +// - 0x03 is the start of 4-byte UTF-8. +// - 0x40 is a UTF-8 tail byte. +// - 0x80 is invalid UTF-8. +// +// RFC 3629 (UTF-8) gives this grammar for valid UTF-8: +// UTF8-1 = %x00-7F +// UTF8-2 = %xC2-DF UTF8-tail +// UTF8-3 = %xE0 %xA0-BF UTF8-tail / %xE1-EC 2( UTF8-tail ) / +// %xED %x80-9F UTF8-tail / %xEE-EF 2( UTF8-tail ) +// UTF8-4 = %xF0 %x90-BF 2( UTF8-tail ) / %xF1-F3 3( UTF8-tail ) / +// %xF4 %x80-8F 2( UTF8-tail ) +// UTF8-tail = %x80-BF +static const uint8_t wuffs_base__utf_8__byte_length_minus_1[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x30 ..= 0x37. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. - if (self->private_impl.f_io_redirect_fourcc <= 1u) { - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; - } - if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - 1u, - self->private_impl.f_io_redirect_fourcc, - 0u, - self->private_impl.f_io_redirect_pos, - 18446744073709551615u); - } - self->private_impl.f_io_redirect_fourcc = 1u; + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x40 ..= 0x47. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x60 ..= 0x67. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. - goto ok; - ok: - goto exit; - exit: - return status; -} + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x80 ..= 0x87. + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x88 ..= 0x8F. + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x90 ..= 0x97. + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x98 ..= 0x9F. + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xA0 ..= 0xA7. + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xA8 ..= 0xAF. + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xB0 ..= 0xB7. + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xB8 ..= 0xBF. -// -------- func bmp.decoder.history_retain_length + 0x80, 0x80, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xC0 ..= 0xC7. + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xC8 ..= 0xCF. + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xD0 ..= 0xD7. + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xD8 ..= 0xDF. + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xE0 ..= 0xE7. + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xE8 ..= 0xEF. + 0x03, 0x03, 0x03, 0x03, 0x03, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_bmp__decoder__history_retain_length( - const wuffs_bmp__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__utf_8__next__output // +wuffs_base__utf_8__next(const uint8_t* s_ptr, size_t s_len) { + if (s_len == 0) { + return wuffs_base__make_utf_8__next__output(0, 0); } + uint32_t c = s_ptr[0]; + switch (wuffs_base__utf_8__byte_length_minus_1[c & 0xFF]) { + case 0: + return wuffs_base__make_utf_8__next__output(c, 1); - return 0u; -} + case 1: + if (s_len < 2) { + break; + } + c = wuffs_base__peek_u16le__no_bounds_check(s_ptr); + if ((c & 0xC000) != 0x8000) { + break; + } + c = (0x0007C0 & (c << 6)) | (0x00003F & (c >> 8)); + return wuffs_base__make_utf_8__next__output(c, 2); -// -------- func bmp.decoder.workbuf_len + case 2: + if (s_len < 3) { + break; + } + c = wuffs_base__peek_u24le__no_bounds_check(s_ptr); + if ((c & 0xC0C000) != 0x808000) { + break; + } + c = (0x00F000 & (c << 12)) | (0x000FC0 & (c >> 2)) | + (0x00003F & (c >> 16)); + if ((c <= 0x07FF) || ((0xD800 <= c) && (c <= 0xDFFF))) { + break; + } + return wuffs_base__make_utf_8__next__output(c, 3); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_bmp__decoder__workbuf_len( - const wuffs_bmp__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + case 3: + if (s_len < 4) { + break; + } + c = wuffs_base__peek_u32le__no_bounds_check(s_ptr); + if ((c & 0xC0C0C000) != 0x80808000) { + break; + } + c = (0x1C0000 & (c << 18)) | (0x03F000 & (c << 4)) | + (0x000FC0 & (c >> 10)) | (0x00003F & (c >> 24)); + if ((c <= 0xFFFF) || (0x110000 <= c)) { + break; + } + return wuffs_base__make_utf_8__next__output(c, 4); } - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + return wuffs_base__make_utf_8__next__output( + WUFFS_BASE__UNICODE_REPLACEMENT_CHARACTER, 1); } -// -------- func bmp.decoder.read_palette - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__read_palette( - wuffs_bmp__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_i = 0; - uint32_t v_argb = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_read_palette[0]; - if (coro_susp_point) { - v_i = self->private_data.s_read_palette[0].v_i; +WUFFS_BASE__MAYBE_STATIC wuffs_base__utf_8__next__output // +wuffs_base__utf_8__next_from_end(const uint8_t* s_ptr, size_t s_len) { + if (s_len == 0) { + return wuffs_base__make_utf_8__next__output(0, 0); } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + const uint8_t* ptr = &s_ptr[s_len - 1]; + if (*ptr < 0x80) { + return wuffs_base__make_utf_8__next__output(*ptr, 1); - if (self->private_impl.f_bitmap_info_len == 12u) { - while ((v_i < 256u) && (self->private_impl.f_padding >= 3u)) { - self->private_impl.f_padding -= 3u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { - t_0 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - iop_a_src += 3; - } else { - self->private_data.s_read_palette[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_read_palette[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 16) { - t_0 = ((uint32_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; - } - } - v_argb = t_0; - } - v_argb |= 4278190080u; - self->private_data.f_src_palette[((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); - self->private_data.f_src_palette[((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); - self->private_data.f_src_palette[((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); - self->private_data.f_src_palette[((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); - v_i += 1u; + } else if (*ptr < 0xC0) { + const uint8_t* too_far = &s_ptr[(s_len > 4) ? (s_len - 4) : 0]; + uint32_t n = 1; + while (ptr != too_far) { + ptr--; + n++; + if (*ptr < 0x80) { + break; + } else if (*ptr < 0xC0) { + continue; } - } else { - while ((v_i < 256u) && (self->private_impl.f_padding >= 4u)) { - self->private_impl.f_padding -= 4u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_read_palette[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_read_palette[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; - } - } - v_argb = t_1; - } - v_argb |= 4278190080u; - self->private_data.f_src_palette[((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); - self->private_data.f_src_palette[((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); - self->private_data.f_src_palette[((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); - self->private_data.f_src_palette[((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); - v_i += 1u; + wuffs_base__utf_8__next__output o = wuffs_base__utf_8__next(ptr, n); + if (o.byte_length != n) { + break; } + return o; } - while (v_i < 256u) { - self->private_data.f_src_palette[((4u * v_i) + 0u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 1u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 2u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 3u)] = 255u; - v_i += 1u; - } - - goto ok; - ok: - self->private_impl.p_read_palette[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_read_palette[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_read_palette[0].v_i = v_i; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return status; + return wuffs_base__make_utf_8__next__output( + WUFFS_BASE__UNICODE_REPLACEMENT_CHARACTER, 1); } -// -------- func bmp.decoder.process_masks - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bmp__decoder__process_masks( - wuffs_bmp__decoder* self) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_i = 0; - uint32_t v_mask = 0; - uint32_t v_n = 0; - - while (v_i < 4u) { - v_mask = self->private_impl.f_channel_masks[v_i]; - if (v_mask != 0u) { - v_n = 0u; - while ((v_mask & 1u) == 0u) { - v_n += 1u; - v_mask >>= 1u; - } - self->private_impl.f_channel_shifts[v_i] = ((uint8_t)((v_n & 31u))); - v_n = 0u; - while ((v_mask & 1u) == 1u) { - v_n += 1u; - v_mask >>= 1u; - } - if ((v_mask != 0u) || (v_n > 32u)) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; - } - self->private_impl.f_channel_num_bits[v_i] = ((uint8_t)(v_n)); - } else if (v_i != 3u) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_header); - goto exit; +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__utf_8__longest_valid_prefix(const uint8_t* s_ptr, size_t s_len) { + // TODO: possibly optimize the all-ASCII case (4 or 8 bytes at a time). + // + // TODO: possibly optimize this by manually inlining the + // wuffs_base__utf_8__next calls. + size_t original_len = s_len; + while (s_len > 0) { + wuffs_base__utf_8__next__output o = wuffs_base__utf_8__next(s_ptr, s_len); + if ((o.code_point > 0x7F) && (o.byte_length == 1)) { + break; } - v_i += 1u; + s_ptr += o.byte_length; + s_len -= o.byte_length; } + return original_len - s_len; +} - goto ok; - ok: - goto exit; - exit: - return status; +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__ascii__longest_valid_prefix(const uint8_t* s_ptr, size_t s_len) { + // TODO: possibly optimize this by checking 4 or 8 bytes at a time. + const uint8_t* original_ptr = s_ptr; + const uint8_t* p = s_ptr; + const uint8_t* q = s_ptr + s_len; + for (; (p != q) && ((*p & 0x80) == 0); p++) { + } + return (size_t)(p - original_ptr); } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BMP) +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__UTF8) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BZIP2) +#ifdef __cplusplus +} // extern "C" +#endif -// ---------------- Status Codes Implementations +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ADLER32) -const char wuffs_bzip2__error__bad_huffman_code_over_subscribed[] = "#bzip2: bad Huffman code (over-subscribed)"; -const char wuffs_bzip2__error__bad_huffman_code_under_subscribed[] = "#bzip2: bad Huffman code (under-subscribed)"; -const char wuffs_bzip2__error__bad_block_header[] = "#bzip2: bad block header"; -const char wuffs_bzip2__error__bad_block_length[] = "#bzip2: bad block length"; -const char wuffs_bzip2__error__bad_checksum[] = "#bzip2: bad checksum"; -const char wuffs_bzip2__error__bad_header[] = "#bzip2: bad header"; -const char wuffs_bzip2__error__bad_number_of_sections[] = "#bzip2: bad number of sections"; -const char wuffs_bzip2__error__truncated_input[] = "#bzip2: truncated input"; -const char wuffs_bzip2__error__unsupported_block_randomization[] = "#bzip2: unsupported block randomization"; -const char wuffs_bzip2__error__internal_error_inconsistent_huffman_decoder_state[] = "#bzip2: internal error: inconsistent Huffman decoder state"; +// ---------------- Status Codes Implementations // ---------------- Private Consts -static const uint8_t -WUFFS_BZIP2__CLAMP_TO_5[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 1, 2, 3, 4, 5, 5, 5, -}; - -static const uint32_t -WUFFS_BZIP2__REV_CRC32_TABLE[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 79764919, 159529838, 222504665, 319059676, 398814059, 445009330, 507990021, - 638119352, 583659535, 797628118, 726387553, 890018660, 835552979, 1015980042, 944750013, - 1276238704, 1221641927, 1167319070, 1095957929, 1595256236, 1540665371, 1452775106, 1381403509, - 1780037320, 1859660671, 1671105958, 1733955601, 2031960084, 2111593891, 1889500026, 1952343757, - 2552477408, 2632100695, 2443283854, 2506133561, 2334638140, 2414271883, 2191915858, 2254759653, - 3190512472, 3135915759, 3081330742, 3009969537, 2905550212, 2850959411, 2762807018, 2691435357, - 3560074640, 3505614887, 3719321342, 3648080713, 3342211916, 3287746299, 3467911202, 3396681109, - 4063920168, 4143685023, 4223187782, 4286162673, 3779000052, 3858754371, 3904687514, 3967668269, - 881225847, 809987520, 1023691545, 969234094, 662832811, 591600412, 771767749, 717299826, - 311336399, 374308984, 453813921, 533576470, 25881363, 88864420, 134795389, 214552010, - 2023205639, 2086057648, 1897238633, 1976864222, 1804852699, 1867694188, 1645340341, 1724971778, - 1587496639, 1516133128, 1461550545, 1406951526, 1302016099, 1230646740, 1142491917, 1087903418, - 2896545431, 2825181984, 2770861561, 2716262478, 3215044683, 3143675388, 3055782693, 3001194130, - 2326604591, 2389456536, 2200899649, 2280525302, 2578013683, 2640855108, 2418763421, 2498394922, - 3769900519, 3832873040, 3912640137, 3992402750, 4088425275, 4151408268, 4197601365, 4277358050, - 3334271071, 3263032808, 3476998961, 3422541446, 3585640067, 3514407732, 3694837229, 3640369242, - 1762451694, 1842216281, 1619975040, 1682949687, 2047383090, 2127137669, 1938468188, 2001449195, - 1325665622, 1271206113, 1183200824, 1111960463, 1543535498, 1489069629, 1434599652, 1363369299, - 622672798, 568075817, 748617968, 677256519, 907627842, 853037301, 1067152940, 995781531, - 51762726, 131386257, 177728840, 240578815, 269590778, 349224269, 429104020, 491947555, - 4046411278, 4126034873, 4172115296, 4234965207, 3794477266, 3874110821, 3953728444, 4016571915, - 3609705398, 3555108353, 3735388376, 3664026991, 3290680682, 3236090077, 3449943556, 3378572211, - 3174993278, 3120533705, 3032266256, 2961025959, 2923101090, 2868635157, 2813903052, 2742672763, - 2604032198, 2683796849, 2461293480, 2524268063, 2284983834, 2364738477, 2175806836, 2238787779, - 1569362073, 1498123566, 1409854455, 1355396672, 1317987909, 1246755826, 1192025387, 1137557660, - 2072149281, 2135122070, 1912620623, 1992383480, 1753615357, 1816598090, 1627664531, 1707420964, - 295390185, 358241886, 404320391, 483945776, 43990325, 106832002, 186451547, 266083308, - 932423249, 861060070, 1041341759, 986742920, 613929101, 542559546, 756411363, 701822548, - 3316196985, 3244833742, 3425377559, 3370778784, 3601682597, 3530312978, 3744426955, 3689838204, - 3819031489, 3881883254, 3928223919, 4007849240, 4037393693, 4100235434, 4180117107, 4259748804, - 2310601993, 2373574846, 2151335527, 2231098320, 2596047829, 2659030626, 2470359227, 2550115596, - 2947551409, 2876312838, 2788305887, 2733848168, 3165939309, 3094707162, 3040238851, 2985771188, -}; - // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__do_transform_io( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__prepare_block( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__read_code_lengths( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__build_huffman_tree( - wuffs_bzip2__decoder* self, - uint32_t a_which); - WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_bzip2__decoder__build_huffman_table( - wuffs_bzip2__decoder* self, - uint32_t a_which); +wuffs_adler32__hasher__up( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_bzip2__decoder__invert_bwt( - wuffs_bzip2__decoder* self); +wuffs_adler32__hasher__up__choosy_default( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x); +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_bzip2__decoder__flush_fast( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_dst); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__flush_slow( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_dst); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__decode_huffman_fast( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_src); +wuffs_adler32__hasher__up_arm_neon( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__decode_huffman_slow( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_src); +static wuffs_base__empty_struct +wuffs_adler32__hasher__up_x86_sse42( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) // ---------------- VTables -const wuffs_base__io_transformer__func_ptrs -wuffs_bzip2__decoder__func_ptrs_for__wuffs_base__io_transformer = { +const wuffs_base__hasher_u32__func_ptrs +wuffs_adler32__hasher__func_ptrs_for__wuffs_base__hasher_u32 = { + (uint32_t(*)(const void*))(&wuffs_adler32__hasher__checksum_u32), (uint64_t(*)(const void*, - uint32_t))(&wuffs_bzip2__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_bzip2__decoder__history_retain_length), + uint32_t))(&wuffs_adler32__hasher__get_quirk), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_bzip2__decoder__set_quirk), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_bzip2__decoder__transform_io), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_bzip2__decoder__workbuf_len), + uint64_t))(&wuffs_adler32__hasher__set_quirk), + (wuffs_base__empty_struct(*)(void*, + wuffs_base__slice_u8))(&wuffs_adler32__hasher__update), + (uint32_t(*)(void*, + wuffs_base__slice_u8))(&wuffs_adler32__hasher__update_u32), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_bzip2__decoder__initialize( - wuffs_bzip2__decoder* self, +wuffs_adler32__hasher__initialize( + wuffs_adler32__hasher* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -30559,23 +30841,25 @@ wuffs_bzip2__decoder__initialize( } } + self->private_impl.choosy_up = &wuffs_adler32__hasher__up__choosy_default; + self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = - wuffs_base__io_transformer__vtable_name; - self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_bzip2__decoder__func_ptrs_for__wuffs_base__io_transformer); + self->private_impl.vtable_for__wuffs_base__hasher_u32.vtable_name = + wuffs_base__hasher_u32__vtable_name; + self->private_impl.vtable_for__wuffs_base__hasher_u32.function_pointers = + (const void*)(&wuffs_adler32__hasher__func_ptrs_for__wuffs_base__hasher_u32); return wuffs_base__make_status(NULL); } -wuffs_bzip2__decoder* -wuffs_bzip2__decoder__alloc(void) { - wuffs_bzip2__decoder* x = - (wuffs_bzip2__decoder*)(calloc(sizeof(wuffs_bzip2__decoder), 1)); +wuffs_adler32__hasher* +wuffs_adler32__hasher__alloc(void) { + wuffs_adler32__hasher* x = + (wuffs_adler32__hasher*)(calloc(1, sizeof(wuffs_adler32__hasher))); if (!x) { return NULL; } - if (wuffs_bzip2__decoder__initialize( - x, sizeof(wuffs_bzip2__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + if (wuffs_adler32__hasher__initialize( + x, sizeof(wuffs_adler32__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { free(x); return NULL; } @@ -30583,18 +30867,18 @@ wuffs_bzip2__decoder__alloc(void) { } size_t -sizeof__wuffs_bzip2__decoder(void) { - return sizeof(wuffs_bzip2__decoder); +sizeof__wuffs_adler32__hasher(void) { + return sizeof(wuffs_adler32__hasher); } // ---------------- Function Implementations -// -------- func bzip2.decoder.get_quirk +// -------- func adler32.hasher.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_bzip2__decoder__get_quirk( - const wuffs_bzip2__decoder* self, +wuffs_adler32__hasher__get_quirk( + const wuffs_adler32__hasher* self, uint32_t a_key) { if (!self) { return 0; @@ -30607,12 +30891,12 @@ wuffs_bzip2__decoder__get_quirk( return 0u; } -// -------- func bzip2.decoder.set_quirk +// -------- func adler32.hasher.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_bzip2__decoder__set_quirk( - wuffs_bzip2__decoder* self, +wuffs_adler32__hasher__set_quirk( + wuffs_adler32__hasher* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -30625,369 +30909,699 @@ wuffs_bzip2__decoder__set_quirk( : wuffs_base__error__initialize_not_called); } - if (a_key == 1u) { - self->private_impl.f_ignore_checksum = (a_value > 0u); - return wuffs_base__make_status(NULL); - } return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func bzip2.decoder.history_retain_length +// -------- func adler32.hasher.update WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_bzip2__decoder__history_retain_length( - const wuffs_bzip2__decoder* self) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_adler32__hasher__update( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x) { if (!self) { - return 0; + return wuffs_base__make_empty_struct(); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); } - return 0u; + if ( ! self->private_impl.f_started) { + self->private_impl.f_started = true; + self->private_impl.f_state = 1u; + self->private_impl.choosy_up = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_adler32__hasher__up_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_adler32__hasher__up_x86_sse42 : +#endif + self->private_impl.choosy_up); + } + wuffs_adler32__hasher__up(self, a_x); + return wuffs_base__make_empty_struct(); } -// -------- func bzip2.decoder.workbuf_len +// -------- func adler32.hasher.update_u32 WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_bzip2__decoder__workbuf_len( - const wuffs_bzip2__decoder* self) { +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_adler32__hasher__update_u32( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x) { if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); + return 0; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return 0; } - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + wuffs_adler32__hasher__update(self, a_x); + return self->private_impl.f_state; } -// -------- func bzip2.decoder.transform_io +// -------- func adler32.hasher.up WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_bzip2__decoder__transform_io( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); +static wuffs_base__empty_struct +wuffs_adler32__hasher__up( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x) { + return (*self->private_impl.choosy_up)(self, a_x); +} - uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_adler32__hasher__up__choosy_default( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x) { + uint32_t v_s1 = 0; + uint32_t v_s2 = 0; + wuffs_base__slice_u8 v_remaining = {0}; + wuffs_base__slice_u8 v_p = {0}; - while (true) { - { - wuffs_base__status t_0 = wuffs_bzip2__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); - v_status = t_0; + v_s1 = ((self->private_impl.f_state) & 0xFFFFu); + v_s2 = ((self->private_impl.f_state) >> (32u - 16u)); + while (((uint64_t)(a_x.len)) > 0u) { + v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0u); + if (((uint64_t)(a_x.len)) > 5552u) { + v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 5552u); + a_x = wuffs_base__slice_u8__subslice_j(a_x, 5552u); + } + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 1; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8)); + while (v_p.ptr < i_end0_p) { + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_bzip2__error__truncated_input); - goto exit; + v_p.len = 1; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end1_p) { + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + v_p.len = 0; } - - ok: - self->private_impl.p_transform_io[0] = 0; - goto exit; + v_s1 %= 65521u; + v_s2 %= 65521u; + a_x = v_remaining; } + self->private_impl.f_state = (((v_s2 & 65535u) << 16u) | (v_s1 & 65535u)); + return wuffs_base__make_empty_struct(); +} - goto suspend; - suspend: - self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; +// -------- func adler32.hasher.checksum_u32 - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_adler32__hasher__checksum_u32( + const wuffs_adler32__hasher* self) { + if (!self) { + return 0; } - return status; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return self->private_impl.f_state; } -// -------- func bzip2.decoder.do_transform_io +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func adler32.hasher.up_arm_neon +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__do_transform_io( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - uint32_t v_i = 0; - uint64_t v_tag = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t v_final_checksum_want = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +static wuffs_base__empty_struct +wuffs_adler32__hasher__up_arm_neon( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x) { + uint32_t v_s1 = 0; + uint32_t v_s2 = 0; + wuffs_base__slice_u8 v_remaining = {0}; + wuffs_base__slice_u8 v_p = {0}; + uint8x16_t v_p__left = {0}; + uint8x16_t v_p_right = {0}; + uint32x4_t v_v1 = {0}; + uint32x4_t v_v2 = {0}; + uint16x8_t v_col0 = {0}; + uint16x8_t v_col1 = {0}; + uint16x8_t v_col2 = {0}; + uint16x8_t v_col3 = {0}; + uint32x2_t v_sum1 = {0}; + uint32x2_t v_sum2 = {0}; + uint32x2_t v_sum12 = {0}; + uint32_t v_num_iterate_bytes = 0; + uint64_t v_tail_index = 0; - uint32_t coro_susp_point = self->private_impl.p_do_transform_io[0]; - if (coro_susp_point) { - v_i = self->private_data.s_do_transform_io[0].v_i; - v_tag = self->private_data.s_do_transform_io[0].v_tag; - v_final_checksum_want = self->private_data.s_do_transform_io[0].v_final_checksum_want; + v_s1 = ((self->private_impl.f_state) & 0xFFFFu); + v_s2 = ((self->private_impl.f_state) >> (32u - 16u)); + while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { + v_s1 += ((uint32_t)(a_x.ptr[0u])); + v_s2 += v_s1; + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c != 66u) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); - goto exit; + v_s1 %= 65521u; + v_s2 %= 65521u; + while (((uint64_t)(a_x.len)) > 0u) { + v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0u); + if (((uint64_t)(a_x.len)) > 5536u) { + v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 5536u); + a_x = wuffs_base__slice_u8__subslice_j(a_x, 5536u); } + v_num_iterate_bytes = ((uint32_t)((((uint64_t)(a_x.len)) & 4294967264u))); + v_s2 += ((uint32_t)(v_s1 * v_num_iterate_bytes)); + v_v1 = vdupq_n_u32(0u); + v_v2 = vdupq_n_u32(0u); + v_col0 = vdupq_n_u16(0u); + v_col1 = vdupq_n_u16(0u); + v_col2 = vdupq_n_u16(0u); + v_col3 = vdupq_n_u16(0u); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 32; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32)); + while (v_p.ptr < i_end0_p) { + v_p__left = vld1q_u8(v_p.ptr); + v_p_right = vld1q_u8(v_p.ptr + 16u); + v_v2 = vaddq_u32(v_v2, v_v1); + v_v1 = vpadalq_u16(v_v1, vpadalq_u8(vpaddlq_u8(v_p__left), v_p_right)); + v_col0 = vaddw_u8(v_col0, vget_low_u8(v_p__left)); + v_col1 = vaddw_u8(v_col1, vget_high_u8(v_p__left)); + v_col2 = vaddw_u8(v_col2, vget_low_u8(v_p_right)); + v_col3 = vaddw_u8(v_col3, vget_high_u8(v_p_right)); + v_p.ptr += 32; } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - if (v_c != 90u) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); - goto exit; + v_p.len = 0; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_v2 = vshlq_n_u32(v_v2, 5u); + v_v2 = vmlal_u16(v_v2, vget_low_u16(v_col0), ((uint16x4_t){32u, 31u, 30u, 29u})); + v_v2 = vmlal_u16(v_v2, vget_high_u16(v_col0), ((uint16x4_t){28u, 27u, 26u, 25u})); + v_v2 = vmlal_u16(v_v2, vget_low_u16(v_col1), ((uint16x4_t){24u, 23u, 22u, 21u})); + v_v2 = vmlal_u16(v_v2, vget_high_u16(v_col1), ((uint16x4_t){20u, 19u, 18u, 17u})); + v_v2 = vmlal_u16(v_v2, vget_low_u16(v_col2), ((uint16x4_t){16u, 15u, 14u, 13u})); + v_v2 = vmlal_u16(v_v2, vget_high_u16(v_col2), ((uint16x4_t){12u, 11u, 10u, 9u})); + v_v2 = vmlal_u16(v_v2, vget_low_u16(v_col3), ((uint16x4_t){8u, 7u, 6u, 5u})); + v_v2 = vmlal_u16(v_v2, vget_high_u16(v_col3), ((uint16x4_t){4u, 3u, 2u, 1u})); + v_sum1 = vpadd_u32(vget_low_u32(v_v1), vget_high_u32(v_v1)); + v_sum2 = vpadd_u32(vget_low_u32(v_v2), vget_high_u32(v_v2)); + v_sum12 = vpadd_u32(v_sum1, v_sum2); + v_s1 += vget_lane_u32(v_sum12, 0u); + v_s2 += vget_lane_u32(v_sum12, 1u); + v_tail_index = (((uint64_t)(a_x.len)) & 18446744073709551584u); + if (v_tail_index < ((uint64_t)(a_x.len))) { + { + wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); + v_p.ptr = i_slice_p.ptr; + v_p.len = 1; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end0_p) { + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; + } + v_p.len = 0; } - uint8_t t_2 = *iop_a_src++; - v_c = t_2; } - if (v_c != 104u) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); - goto exit; + v_s1 %= 65521u; + v_s2 %= 65521u; + a_x = v_remaining; + } + self->private_impl.f_state = (((v_s2 & 65535u) << 16u) | (v_s1 & 65535u)); + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon + +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func adler32.hasher.up_x86_sse42 + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_adler32__hasher__up_x86_sse42( + wuffs_adler32__hasher* self, + wuffs_base__slice_u8 a_x) { + uint32_t v_s1 = 0; + uint32_t v_s2 = 0; + wuffs_base__slice_u8 v_remaining = {0}; + wuffs_base__slice_u8 v_p = {0}; + __m128i v_zeroes = {0}; + __m128i v_ones = {0}; + __m128i v_weights__left = {0}; + __m128i v_weights_right = {0}; + __m128i v_q__left = {0}; + __m128i v_q_right = {0}; + __m128i v_v1 = {0}; + __m128i v_v2 = {0}; + __m128i v_v2j = {0}; + __m128i v_v2k = {0}; + uint32_t v_num_iterate_bytes = 0; + uint64_t v_tail_index = 0; + + v_zeroes = _mm_set1_epi16((int16_t)(0u)); + v_ones = _mm_set1_epi16((int16_t)(1u)); + v_weights__left = _mm_set_epi8((int8_t)(17u), (int8_t)(18u), (int8_t)(19u), (int8_t)(20u), (int8_t)(21u), (int8_t)(22u), (int8_t)(23u), (int8_t)(24u), (int8_t)(25u), (int8_t)(26u), (int8_t)(27u), (int8_t)(28u), (int8_t)(29u), (int8_t)(30u), (int8_t)(31u), (int8_t)(32u)); + v_weights_right = _mm_set_epi8((int8_t)(1u), (int8_t)(2u), (int8_t)(3u), (int8_t)(4u), (int8_t)(5u), (int8_t)(6u), (int8_t)(7u), (int8_t)(8u), (int8_t)(9u), (int8_t)(10u), (int8_t)(11u), (int8_t)(12u), (int8_t)(13u), (int8_t)(14u), (int8_t)(15u), (int8_t)(16u)); + v_s1 = ((self->private_impl.f_state) & 0xFFFFu); + v_s2 = ((self->private_impl.f_state) >> (32u - 16u)); + while (((uint64_t)(a_x.len)) > 0u) { + v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0u); + if (((uint64_t)(a_x.len)) > 5536u) { + v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 5536u); + a_x = wuffs_base__slice_u8__subslice_j(a_x, 5536u); } + v_num_iterate_bytes = ((uint32_t)((((uint64_t)(a_x.len)) & 4294967264u))); + v_s2 += ((uint32_t)(v_s1 * v_num_iterate_bytes)); + v_v1 = _mm_setzero_si128(); + v_v2j = _mm_setzero_si128(); + v_v2k = _mm_setzero_si128(); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; - } - if ((v_c < 49u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); - goto exit; - } - self->private_impl.f_max_incl_block_size = (((uint32_t)((v_c - 48u))) * 100000u); - while (true) { - v_tag = 0u; - v_i = 0u; - while (v_i < 48u) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; - } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; - } - v_tag <<= 1u; - v_tag |= ((uint64_t)((self->private_impl.f_bits >> 31u))); - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 1u; - } - if (v_tag == 25779555029136u) { - break; - } else if (v_tag != 54156738319193u) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - status = wuffs_bzip2__decoder__prepare_block(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_block_size = 0u; - self->private_impl.f_decode_huffman_finished = false; - self->private_impl.f_decode_huffman_which = WUFFS_BZIP2__CLAMP_TO_5[(self->private_data.f_huffman_selectors[0u] & 7u)]; - self->private_impl.f_decode_huffman_ticks = 50u; - self->private_impl.f_decode_huffman_section = 0u; - self->private_impl.f_decode_huffman_run_shift = 0u; - while ( ! self->private_impl.f_decode_huffman_finished) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_status = wuffs_bzip2__decoder__decode_huffman_fast(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (wuffs_base__status__is_error(&v_status)) { - status = v_status; - goto exit; - } else if (self->private_impl.f_decode_huffman_finished) { - break; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - status = wuffs_bzip2__decoder__decode_huffman_slow(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } - wuffs_bzip2__decoder__invert_bwt(self); - self->private_impl.f_block_checksum_have = 4294967295u; - if (self->private_impl.f_original_pointer >= self->private_impl.f_block_size) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); - goto exit; - } - self->private_impl.f_flush_pointer = (self->private_data.f_bwt[self->private_impl.f_original_pointer] >> 12u); - self->private_impl.f_flush_repeat_count = 0u; - self->private_impl.f_flush_prev = 0u; - while (self->private_impl.f_block_size > 0u) { - wuffs_bzip2__decoder__flush_fast(self, a_dst); - if (self->private_impl.f_block_size <= 0u) { - break; - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - status = wuffs_bzip2__decoder__flush_slow(self, a_dst); - if (status.repr) { - goto suspend; - } - } - self->private_impl.f_block_checksum_have ^= 4294967295u; - if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_block_checksum_have != self->private_impl.f_block_checksum_want)) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_checksum); - goto exit; + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 32; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32)); + while (v_p.ptr < i_end0_p) { + v_q__left = _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr)); + v_q_right = _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 16u)); + v_v2j = _mm_add_epi32(v_v2j, v_v1); + v_v1 = _mm_add_epi32(v_v1, _mm_sad_epu8(v_q__left, v_zeroes)); + v_v1 = _mm_add_epi32(v_v1, _mm_sad_epu8(v_q_right, v_zeroes)); + v_v2k = _mm_add_epi32(v_v2k, _mm_madd_epi16(v_ones, _mm_maddubs_epi16(v_q__left, v_weights__left))); + v_v2k = _mm_add_epi32(v_v2k, _mm_madd_epi16(v_ones, _mm_maddubs_epi16(v_q_right, v_weights_right))); + v_p.ptr += 32; } - self->private_impl.f_final_checksum_have = (self->private_impl.f_block_checksum_have ^ ((self->private_impl.f_final_checksum_have >> 31u) | ((uint32_t)(self->private_impl.f_final_checksum_have << 1u)))); + v_p.len = 0; } - v_final_checksum_want = 0u; - v_i = 0u; - while (v_i < 32u) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; + v_v1 = _mm_add_epi32(v_v1, _mm_shuffle_epi32(v_v1, (int32_t)(177u))); + v_v1 = _mm_add_epi32(v_v1, _mm_shuffle_epi32(v_v1, (int32_t)(78u))); + v_s1 += ((uint32_t)(_mm_cvtsi128_si32(v_v1))); + v_v2 = _mm_add_epi32(v_v2k, _mm_slli_epi32(v_v2j, (int32_t)(5u))); + v_v2 = _mm_add_epi32(v_v2, _mm_shuffle_epi32(v_v2, (int32_t)(177u))); + v_v2 = _mm_add_epi32(v_v2, _mm_shuffle_epi32(v_v2, (int32_t)(78u))); + v_s2 += ((uint32_t)(_mm_cvtsi128_si32(v_v2))); + v_tail_index = (((uint64_t)(a_x.len)) & 18446744073709551584u); + if (v_tail_index < ((uint64_t)(a_x.len))) { + { + wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); + v_p.ptr = i_slice_p.ptr; + v_p.len = 1; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end0_p) { + v_s1 += ((uint32_t)(v_p.ptr[0u])); + v_s2 += v_s1; + v_p.ptr += 1; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; + v_p.len = 0; } - v_final_checksum_want <<= 1u; - v_final_checksum_want |= (self->private_impl.f_bits >> 31u); - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 1u; } - if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_final_checksum_have != v_final_checksum_want)) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_checksum); - goto exit; - } - - goto ok; - ok: - self->private_impl.p_do_transform_io[0] = 0; - goto exit; + v_s1 %= 65521u; + v_s2 %= 65521u; + a_x = v_remaining; } + self->private_impl.f_state = (((v_s2 & 65535u) << 16u) | (v_s1 & 65535u)); + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 - goto suspend; - suspend: - self->private_impl.p_do_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_transform_io[0].v_i = v_i; - self->private_data.s_do_transform_io[0].v_tag = v_tag; - self->private_data.s_do_transform_io[0].v_final_checksum_want = v_final_checksum_want; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ADLER32) - return status; -} +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BMP) -// -------- func bzip2.decoder.prepare_block +// ---------------- Status Codes Implementations -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__prepare_block( - wuffs_bzip2__decoder* self, +const char wuffs_bmp__error__bad_header[] = "#bmp: bad header"; +const char wuffs_bmp__error__bad_rle_compression[] = "#bmp: bad RLE compression"; +const char wuffs_bmp__error__truncated_input[] = "#bmp: truncated input"; +const char wuffs_bmp__error__unsupported_bmp_file[] = "#bmp: unsupported BMP file"; +const char wuffs_bmp__note__internal_note_short_read[] = "@bmp: internal note: short read"; + +// ---------------- Private Consts + +#define WUFFS_BMP__COMPRESSION_NONE 0u + +#define WUFFS_BMP__COMPRESSION_RLE8 1u + +#define WUFFS_BMP__COMPRESSION_RLE4 2u + +#define WUFFS_BMP__COMPRESSION_BITFIELDS 3u + +#define WUFFS_BMP__COMPRESSION_JPEG 4u + +#define WUFFS_BMP__COMPRESSION_PNG 5u + +#define WUFFS_BMP__COMPRESSION_ALPHABITFIELDS 6u + +#define WUFFS_BMP__COMPRESSION_LOW_BIT_DEPTH 256u + +#define WUFFS_BMP__RLE_STATE_NEUTRAL 0u + +#define WUFFS_BMP__RLE_STATE_RUN 1u + +#define WUFFS_BMP__RLE_STATE_ESCAPE 2u + +#define WUFFS_BMP__RLE_STATE_LITERAL 3u + +#define WUFFS_BMP__RLE_STATE_DELTA_X 4u + +#define WUFFS_BMP__RLE_STATE_DELTA_Y 5u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__do_decode_image_config( + wuffs_bmp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__do_decode_frame_config( + wuffs_bmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__do_decode_frame( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__swizzle_none( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__swizzle_rle( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__swizzle_bitfields( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__swizzle_low_bit_depth( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__do_tell_me_more( + wuffs_bmp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__read_palette( + wuffs_bmp__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__process_masks( + wuffs_bmp__decoder* self); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_bmp__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_bmp__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_bmp__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_bmp__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_bmp__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_bmp__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_bmp__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_bmp__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_bmp__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_bmp__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_bmp__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_bmp__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_bmp__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_bmp__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_bmp__decoder__initialize( + wuffs_bmp__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_bmp__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_bmp__decoder* +wuffs_bmp__decoder__alloc(void) { + wuffs_bmp__decoder* x = + (wuffs_bmp__decoder*)(calloc(1, sizeof(wuffs_bmp__decoder))); + if (!x) { + return NULL; + } + if (wuffs_bmp__decoder__initialize( + x, sizeof(wuffs_bmp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_bmp__decoder(void) { + return sizeof(wuffs_bmp__decoder); +} + +// ---------------- Function Implementations + +// -------- func bmp.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_bmp__decoder__get_quirk( + const wuffs_bmp__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func bmp.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_bmp__decoder__set_quirk( + wuffs_bmp__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func bmp.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_bmp__decoder__decode_image_config( + wuffs_bmp__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint32_t v_i = 0; - uint32_t v_j = 0; - uint32_t v_selector = 0; - uint32_t v_sel_ff = 0; - uint8_t v_movee = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_bmp__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_bmp__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func bmp.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__do_decode_image_config( + wuffs_bmp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_magic = 0; + uint32_t v_width = 0; + uint32_t v_height = 0; + uint32_t v_planes = 0; + uint32_t v_n = 0; + uint32_t v_dst_pixfmt = 0; + uint32_t v_byte_width = 0; + const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -30999,797 +31613,1141 @@ wuffs_bzip2__decoder__prepare_block( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_prepare_block[0]; - if (coro_susp_point) { - v_i = self->private_data.s_prepare_block[0].v_i; - v_selector = self->private_data.s_prepare_block[0].v_selector; - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - self->private_impl.f_block_checksum_want = 0u; - v_i = 0u; - while (v_i < 32u) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if ((self->private_impl.f_call_sequence != 0u) || (self->private_impl.f_io_redirect_fourcc == 1u)) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if (self->private_impl.f_io_redirect_fourcc != 0u) { + status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); + goto ok; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_0 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; - } - self->private_impl.f_block_checksum_want <<= 1u; - self->private_impl.f_block_checksum_want |= (self->private_impl.f_bits >> 31u); - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 1u; - } - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 8) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; + v_magic = t_0; } - if ((self->private_impl.f_bits >> 31u) != 0u) { - status = wuffs_base__make_status(wuffs_bzip2__error__unsupported_block_randomization); + if (v_magic != 19778u) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); goto exit; } - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - self->private_impl.f_original_pointer = 0u; - v_i = 0u; - while (v_i < 24u) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + self->private_data.s_do_decode_image_config.scratch = 8u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_image_config.scratch; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_2 = *iop_a_src++; - v_c = t_2; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; } - self->private_impl.f_original_pointer <<= 1u; - self->private_impl.f_original_pointer |= (self->private_impl.f_bits >> 31u); - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 1u; + self->private_impl.f_padding = t_1; } - v_i = 0u; - while (v_i < 256u) { - self->private_data.f_presence[v_i] = 0u; - v_i += 1u; + if (self->private_impl.f_padding < 14u) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; } - v_i = 0u; - while (v_i < 256u) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + self->private_impl.f_padding -= 14u; + self->private_impl.f_io_redirect_pos = wuffs_base__u64__sat_add(((uint64_t)(self->private_impl.f_padding)), wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; - } - if ((self->private_impl.f_bits >> 31u) != 0u) { - self->private_data.f_presence[v_i] = 1u; } - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 16u; + self->private_impl.f_bitmap_info_len = t_2; } - self->private_data.f_scratch = 0u; - v_i = 0u; - while (v_i < 256u) { - if (self->private_data.f_presence[v_i] == 0u) { - v_i += 16u; - continue; - } - while (true) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (self->private_impl.f_padding < self->private_impl.f_bitmap_info_len) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; + } + self->private_impl.f_padding -= self->private_impl.f_bitmap_info_len; + if (self->private_impl.f_bitmap_info_len == 12u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_3 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 8) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; - } - self->private_data.f_scratch += (self->private_impl.f_bits >> 31u); - self->private_data.f_presence[(v_i & 255u)] = ((uint8_t)((self->private_impl.f_bits >> 31u))); - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 1u; - if ((v_i & 15u) == 0u) { - break; } + self->private_impl.f_width = t_3; } - } - if ((self->private_data.f_scratch < 1u) || (256u < self->private_data.f_scratch)) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); - goto exit; - } - self->private_impl.f_num_symbols = (self->private_data.f_scratch + 2u); - self->private_data.f_scratch = 0u; - v_i = 0u; - while (v_i < 3u) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_4 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 8) { + t_4 = ((uint32_t)(*scratch)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)) << 56; } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; + self->private_impl.f_height = t_4; } - self->private_data.f_scratch <<= 1u; - self->private_data.f_scratch |= (self->private_impl.f_bits >> 31u); - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 1u; - } - if ((self->private_data.f_scratch < 2u) || (6u < self->private_data.f_scratch)) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); - goto exit; - } - self->private_impl.f_num_huffman_codes = self->private_data.f_scratch; - self->private_data.f_scratch = 0u; - v_i = 0u; - while (v_i < 15u) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_5 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_5; + if (num_bits_5 == 8) { + t_5 = ((uint32_t)(*scratch)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)) << 56; } - uint8_t t_6 = *iop_a_src++; - v_c = t_6; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; + v_planes = t_5; } - self->private_data.f_scratch <<= 1u; - self->private_data.f_scratch |= (self->private_impl.f_bits >> 31u); - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 1u; - } - if ((self->private_data.f_scratch < 1u) || (18001u < self->private_data.f_scratch)) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); - goto exit; - } - self->private_impl.f_num_sections = self->private_data.f_scratch; - v_i = 0u; - while (v_i < self->private_impl.f_num_huffman_codes) { - self->private_data.f_mtft[v_i] = ((uint8_t)(v_i)); - v_i += 1u; - } - v_i = 0u; - while (v_i < self->private_impl.f_num_sections) { - v_selector = 0u; - while (true) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (v_planes != 1u) { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + uint32_t t_6; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_6 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_7 = *iop_a_src++; - v_c = t_7; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_6; + if (num_bits_6 == 8) { + t_6 = ((uint32_t)(*scratch)); + break; + } + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)) << 56; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; - } - if ((self->private_impl.f_bits >> 31u) == 0u) { - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - break; } - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_selector += 1u; - if (v_selector >= self->private_impl.f_num_huffman_codes) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); - goto exit; + self->private_impl.f_bits_per_pixel = t_6; + } + } else if (self->private_impl.f_bitmap_info_len == 16u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + uint32_t t_7; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_7 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; + if (num_bits_7 == 24) { + t_7 = ((uint32_t)(*scratch)); + break; + } + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)) << 56; + } } + v_width = t_7; } - if (v_selector == 0u) { - self->private_data.f_huffman_selectors[v_i] = self->private_data.f_mtft[0u]; - } else { - v_sel_ff = (v_selector & 255u); - v_movee = self->private_data.f_mtft[v_sel_ff]; - wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_mtft, 1, (1u + v_sel_ff)), wuffs_base__make_slice_u8(self->private_data.f_mtft, v_sel_ff)); - self->private_data.f_mtft[0u] = v_movee; - self->private_data.f_huffman_selectors[v_i] = v_movee; + if (v_width > 2147483647u) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; + } else if (v_width > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; } - v_i += 1u; - } - v_i = 0u; - while (v_i < self->private_impl.f_num_huffman_codes) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + self->private_impl.f_width = v_width; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + uint32_t t_8; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_8 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_8 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_8; + if (num_bits_8 == 24) { + t_8 = ((uint32_t)(*scratch)); + break; + } + num_bits_8 += 8u; + *scratch |= ((uint64_t)(num_bits_8)) << 56; + } + } + v_height = t_8; } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_bzip2__decoder__read_code_lengths(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + if (v_height > 2147483647u) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; + } else if (v_height > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; } - if (status.repr) { - goto suspend; + self->private_impl.f_height = v_height; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + uint32_t t_9; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_9 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_9 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_9; + if (num_bits_9 == 8) { + t_9 = ((uint32_t)(*scratch)); + break; + } + num_bits_9 += 8u; + *scratch |= ((uint64_t)(num_bits_9)) << 56; + } + } + v_planes = t_9; } - v_status = wuffs_bzip2__decoder__build_huffman_tree(self, v_i); - if (wuffs_base__status__is_error(&v_status)) { - status = v_status; + if (v_planes != 1u) { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); goto exit; } - wuffs_bzip2__decoder__build_huffman_table(self, v_i); - v_i += 1u; - } - v_i = 0u; - v_j = 0u; - while (v_i < 256u) { - if (self->private_data.f_presence[v_i] != 0u) { - self->private_data.f_mtft[(v_j & 255u)] = ((uint8_t)(v_i)); - v_j += 1u; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 256u) { - self->private_data.f_letter_counts[v_i] = 0u; - v_i += 1u; - } - - goto ok; - ok: - self->private_impl.p_prepare_block[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_prepare_block[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_prepare_block[0].v_i = v_i; - self->private_data.s_prepare_block[0].v_selector = v_selector; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func bzip2.decoder.read_code_lengths - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__read_code_lengths( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - uint32_t v_i = 0; - uint32_t v_code_length = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_read_code_lengths[0]; - if (coro_susp_point) { - v_i = self->private_data.s_read_code_lengths[0].v_i; - v_code_length = self->private_data.s_read_code_lengths[0].v_code_length; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - self->private_impl.f_code_lengths_bitmask = 0u; - v_i = 0u; - while (v_i < 5u) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + uint32_t t_10; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_10 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_10 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_10; + if (num_bits_10 == 8) { + t_10 = ((uint32_t)(*scratch)); + break; + } + num_bits_10 += 8u; + *scratch |= ((uint64_t)(num_bits_10)) << 56; } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; + self->private_impl.f_bits_per_pixel = t_10; } - v_code_length <<= 1u; - v_code_length |= (self->private_impl.f_bits >> 31u); - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - v_i += 1u; - } - v_i = 0u; - while (v_i < self->private_impl.f_num_symbols) { - while (true) { - if ((v_code_length < 1u) || (20u < v_code_length)) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); - goto exit; - } - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + } else { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); + uint32_t t_11; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_11 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(25); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_11 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_11; + if (num_bits_11 == 24) { + t_11 = ((uint32_t)(*scratch)); + break; + } + num_bits_11 += 8u; + *scratch |= ((uint64_t)(num_bits_11)) << 56; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; } - if ((self->private_impl.f_bits >> 31u) == 0u) { - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - break; - } - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + v_width = t_11; + } + if (v_width > 2147483647u) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; + } else if (v_width > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_width = v_width; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(26); + uint32_t t_12; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_12 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(27); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_2 = *iop_a_src++; - v_c = t_2; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_12 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_12; + if (num_bits_12 == 24) { + t_12 = ((uint32_t)(*scratch)); + break; + } + num_bits_12 += 8u; + *scratch |= ((uint64_t)(num_bits_12)) << 56; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; } - if ((self->private_impl.f_bits >> 31u) == 0u) { - v_code_length += 1u; + v_height = t_12; + } + if (v_height == 2147483648u) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; + } else if (v_height > 2147483648u) { + v_height = ((uint32_t)(0u - v_height)); + if (v_height > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_height = v_height; + self->private_impl.f_top_down = true; + } else if (v_height > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } else { + self->private_impl.f_height = v_height; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(28); + uint32_t t_13; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_13 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; } else { - v_code_length -= 1u; + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(29); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_13 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_13; + if (num_bits_13 == 8) { + t_13 = ((uint32_t)(*scratch)); + break; + } + num_bits_13 += 8u; + *scratch |= ((uint64_t)(num_bits_13)) << 56; + } } - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; + v_planes = t_13; } - self->private_impl.f_code_lengths_bitmask |= (((uint32_t)(1u)) << (v_code_length & 31u)); - self->private_data.f_bwt[v_i] = v_code_length; - v_i += 1u; - } - - goto ok; - ok: - self->private_impl.p_read_code_lengths[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_read_code_lengths[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_read_code_lengths[0].v_i = v_i; - self->private_data.s_read_code_lengths[0].v_code_length = v_code_length; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func bzip2.decoder.build_huffman_tree - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__build_huffman_tree( - wuffs_bzip2__decoder* self, - uint32_t a_which) { - uint32_t v_code_length = 0; - uint32_t v_symbol_index = 0; - uint32_t v_num_branch_nodes = 0; - uint32_t v_stack_height = 0; - uint32_t v_stack_values[21] = {0}; - uint32_t v_node_index = 0; - uint16_t v_leaf_value = 0; - - self->private_data.f_huffman_trees[a_which][0u][0u] = 0u; - self->private_data.f_huffman_trees[a_which][0u][1u] = 0u; - v_num_branch_nodes = 1u; - v_stack_height = 1u; - v_stack_values[0u] = 0u; - v_code_length = 1u; - while (v_code_length <= 20u) { - if ((self->private_impl.f_code_lengths_bitmask & (((uint32_t)(1u)) << v_code_length)) == 0u) { - v_code_length += 1u; - continue; - } - v_symbol_index = 0u; - while (v_symbol_index < self->private_impl.f_num_symbols) { - if (self->private_data.f_bwt[v_symbol_index] != v_code_length) { - v_symbol_index += 1u; - continue; + if (v_planes != 1u) { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; } - while (true) { - if (v_stack_height <= 0u) { - return wuffs_base__make_status(wuffs_bzip2__error__bad_huffman_code_over_subscribed); - } else if (v_stack_height >= v_code_length) { - break; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(30); + uint32_t t_14; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_14 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(31); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_14 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_14; + if (num_bits_14 == 8) { + t_14 = ((uint32_t)(*scratch)); + break; + } + num_bits_14 += 8u; + *scratch |= ((uint64_t)(num_bits_14)) << 56; + } } - v_node_index = v_stack_values[(v_stack_height - 1u)]; - if (self->private_data.f_huffman_trees[a_which][v_node_index][0u] == 0u) { - self->private_data.f_huffman_trees[a_which][v_node_index][0u] = ((uint16_t)(v_num_branch_nodes)); + self->private_impl.f_bits_per_pixel = t_14; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(32); + uint32_t t_15; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_15 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - self->private_data.f_huffman_trees[a_which][v_node_index][1u] = ((uint16_t)(v_num_branch_nodes)); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(33); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_15 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_15; + if (num_bits_15 == 24) { + t_15 = ((uint32_t)(*scratch)); + break; + } + num_bits_15 += 8u; + *scratch |= ((uint64_t)(num_bits_15)) << 56; + } } - if (v_num_branch_nodes >= 257u) { - return wuffs_base__make_status(wuffs_bzip2__error__bad_huffman_code_under_subscribed); + self->private_impl.f_compression = t_15; + } + if (self->private_impl.f_bits_per_pixel == 0u) { + if (self->private_impl.f_compression == 4u) { + self->private_impl.f_io_redirect_fourcc = 1246774599u; + status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); + goto ok; + } else if (self->private_impl.f_compression == 5u) { + self->private_impl.f_io_redirect_fourcc = 1347307296u; + status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); + goto ok; } - v_stack_values[v_stack_height] = v_num_branch_nodes; - self->private_data.f_huffman_trees[a_which][v_num_branch_nodes][0u] = 0u; - self->private_data.f_huffman_trees[a_which][v_num_branch_nodes][1u] = 0u; - v_num_branch_nodes += 1u; - v_stack_height += 1u; + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; } - v_node_index = v_stack_values[(v_stack_height - 1u)]; - if (v_symbol_index < 2u) { - v_leaf_value = ((uint16_t)((769u + v_symbol_index))); - } else if ((v_symbol_index + 1u) < self->private_impl.f_num_symbols) { - v_leaf_value = ((uint16_t)((511u + v_symbol_index))); - } else { - v_leaf_value = 768u; + self->private_data.s_do_decode_image_config.scratch = 20u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(34); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - if (self->private_data.f_huffman_trees[a_which][v_node_index][0u] == 0u) { - self->private_data.f_huffman_trees[a_which][v_node_index][0u] = v_leaf_value; - } else { - self->private_data.f_huffman_trees[a_which][v_node_index][1u] = v_leaf_value; - v_stack_height -= 1u; - while (v_stack_height > 0u) { - v_node_index = v_stack_values[(v_stack_height - 1u)]; - if (self->private_data.f_huffman_trees[a_which][v_node_index][1u] == 0u) { - break; + iop_a_src += self->private_data.s_do_decode_image_config.scratch; + if (self->private_impl.f_bitmap_info_len == 40u) { + if (self->private_impl.f_bits_per_pixel >= 16u) { + if (self->private_impl.f_padding >= 16u) { + self->private_impl.f_bitmap_info_len = 56u; + self->private_impl.f_padding -= 16u; + } else if (self->private_impl.f_padding >= 12u) { + self->private_impl.f_bitmap_info_len = 52u; + self->private_impl.f_padding -= 12u; } - v_stack_height -= 1u; } + } else if ((self->private_impl.f_bitmap_info_len != 52u) && + (self->private_impl.f_bitmap_info_len != 56u) && + (self->private_impl.f_bitmap_info_len != 64u) && + (self->private_impl.f_bitmap_info_len != 108u) && + (self->private_impl.f_bitmap_info_len != 124u)) { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; + } + if (self->private_impl.f_compression == 6u) { + self->private_impl.f_compression = 3u; + } + if (self->private_impl.f_compression == 3u) { + if (self->private_impl.f_bitmap_info_len >= 52u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(35); + uint32_t t_16; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_16 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(36); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_16 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_16; + if (num_bits_16 == 24) { + t_16 = ((uint32_t)(*scratch)); + break; + } + num_bits_16 += 8u; + *scratch |= ((uint64_t)(num_bits_16)) << 56; + } + } + self->private_impl.f_channel_masks[2u] = t_16; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(37); + uint32_t t_17; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_17 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(38); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_17 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_17; + if (num_bits_17 == 24) { + t_17 = ((uint32_t)(*scratch)); + break; + } + num_bits_17 += 8u; + *scratch |= ((uint64_t)(num_bits_17)) << 56; + } + } + self->private_impl.f_channel_masks[1u] = t_17; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(39); + uint32_t t_18; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_18 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(40); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_18 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_18; + if (num_bits_18 == 24) { + t_18 = ((uint32_t)(*scratch)); + break; + } + num_bits_18 += 8u; + *scratch |= ((uint64_t)(num_bits_18)) << 56; + } + } + self->private_impl.f_channel_masks[0u] = t_18; + } + if (self->private_impl.f_bitmap_info_len >= 56u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(41); + uint32_t t_19; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_19 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(42); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_19 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_19; + if (num_bits_19 == 24) { + t_19 = ((uint32_t)(*scratch)); + break; + } + num_bits_19 += 8u; + *scratch |= ((uint64_t)(num_bits_19)) << 56; + } + } + self->private_impl.f_channel_masks[3u] = t_19; + } + self->private_data.s_do_decode_image_config.scratch = ((uint32_t)(self->private_impl.f_bitmap_info_len - 56u)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(43); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_image_config.scratch; + } + if ((self->private_impl.f_channel_masks[0u] == 255u) && (self->private_impl.f_channel_masks[1u] == 65280u) && (self->private_impl.f_channel_masks[2u] == 16711680u)) { + if (self->private_impl.f_bits_per_pixel == 24u) { + self->private_impl.f_compression = 0u; + } else if (self->private_impl.f_bits_per_pixel == 32u) { + if ((self->private_impl.f_channel_masks[3u] == 0u) || (self->private_impl.f_channel_masks[3u] == 4278190080u)) { + self->private_impl.f_compression = 0u; + } + } + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(44); + status = wuffs_bmp__decoder__process_masks(self); + if (status.repr) { + goto suspend; + } + } + } else if (self->private_impl.f_bitmap_info_len >= 40u) { + v_n = (self->private_impl.f_bitmap_info_len - 40u); + self->private_data.s_do_decode_image_config.scratch = v_n; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(45); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_image_config.scratch; + } else { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; } - v_symbol_index += 1u; } - v_code_length += 1u; + if (self->private_impl.f_compression != 3u) { + if (self->private_impl.f_bits_per_pixel < 16u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(46); + status = wuffs_bmp__decoder__read_palette(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + } + if (self->private_impl.f_compression == 0u) { + if ((self->private_impl.f_bits_per_pixel == 1u) || (self->private_impl.f_bits_per_pixel == 2u) || (self->private_impl.f_bits_per_pixel == 4u)) { + self->private_impl.f_src_pixfmt = 2198077448u; + self->private_impl.f_compression = 256u; + } else if (self->private_impl.f_bits_per_pixel == 8u) { + self->private_impl.f_src_pixfmt = 2198077448u; + } else if (self->private_impl.f_bits_per_pixel == 16u) { + self->private_impl.f_compression = 3u; + self->private_impl.f_channel_masks[0u] = 31u; + self->private_impl.f_channel_masks[1u] = 992u; + self->private_impl.f_channel_masks[2u] = 31744u; + self->private_impl.f_channel_masks[3u] = 0u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(47); + status = wuffs_bmp__decoder__process_masks(self); + if (status.repr) { + goto suspend; + } + self->private_impl.f_src_pixfmt = 2164308923u; + } else if (self->private_impl.f_bits_per_pixel == 24u) { + self->private_impl.f_src_pixfmt = 2147485832u; + } else if (self->private_impl.f_bits_per_pixel == 32u) { + if (self->private_impl.f_channel_masks[3u] == 0u) { + self->private_impl.f_src_pixfmt = 2415954056u; + } else { + self->private_impl.f_src_pixfmt = 2164295816u; + } + } else { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; + } + } else if (self->private_impl.f_compression == 1u) { + if (self->private_impl.f_bits_per_pixel == 8u) { + self->private_impl.f_src_pixfmt = 2198077448u; + } else { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; + } + } else if (self->private_impl.f_compression == 2u) { + if (self->private_impl.f_bits_per_pixel == 4u) { + self->private_impl.f_src_pixfmt = 2198077448u; + } else { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; + } + } else if (self->private_impl.f_compression == 3u) { + if ((self->private_impl.f_bits_per_pixel == 16u) || (self->private_impl.f_bits_per_pixel == 32u)) { + self->private_impl.f_src_pixfmt = 2164308923u; + } else { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; + } + } else { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); + goto exit; + } + if (((self->private_impl.f_bitmap_info_len < 40u) || (self->private_impl.f_bitmap_info_len == 64u)) && + (self->private_impl.f_bits_per_pixel != 1u) && + (self->private_impl.f_bits_per_pixel != 4u) && + (self->private_impl.f_bits_per_pixel != 8u) && + (self->private_impl.f_bits_per_pixel != 24u)) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; + } + if (self->private_impl.f_bits_per_pixel == 1u) { + v_byte_width = ((self->private_impl.f_width >> 3u) + (((self->private_impl.f_width & 7u) + 7u) >> 3u)); + self->private_impl.f_pad_per_row = ((4u - (v_byte_width & 3u)) & 3u); + } else if (self->private_impl.f_bits_per_pixel == 2u) { + v_byte_width = ((self->private_impl.f_width >> 2u) + (((self->private_impl.f_width & 3u) + 3u) >> 2u)); + self->private_impl.f_pad_per_row = ((4u - (v_byte_width & 3u)) & 3u); + } else if (self->private_impl.f_bits_per_pixel == 4u) { + v_byte_width = ((self->private_impl.f_width >> 1u) + (self->private_impl.f_width & 1u)); + self->private_impl.f_pad_per_row = ((4u - (v_byte_width & 3u)) & 3u); + } else if (self->private_impl.f_bits_per_pixel == 8u) { + self->private_impl.f_pad_per_row = ((4u - (self->private_impl.f_width & 3u)) & 3u); + } else if (self->private_impl.f_bits_per_pixel == 16u) { + self->private_impl.f_pad_per_row = ((self->private_impl.f_width & 1u) * 2u); + } else if (self->private_impl.f_bits_per_pixel == 24u) { + self->private_impl.f_pad_per_row = (self->private_impl.f_width & 3u); + } else if (self->private_impl.f_bits_per_pixel == 32u) { + self->private_impl.f_pad_per_row = 0u; + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + v_dst_pixfmt = 2164295816u; + if ((self->private_impl.f_channel_num_bits[0u] > 8u) || + (self->private_impl.f_channel_num_bits[1u] > 8u) || + (self->private_impl.f_channel_num_bits[2u] > 8u) || + (self->private_impl.f_channel_num_bits[3u] > 8u)) { + v_dst_pixfmt = 2164308923u; + } else if (((self->private_impl.f_src_pixfmt == 2198077448u) || (self->private_impl.f_src_pixfmt == 2147485832u) || (self->private_impl.f_src_pixfmt == 2415954056u)) || ((self->private_impl.f_src_pixfmt == 2164308923u) && (self->private_impl.f_channel_masks[3u] == 0u))) { + v_dst_pixfmt = 2415954056u; + } + wuffs_base__image_config__set( + a_dst, + v_dst_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + (self->private_impl.f_channel_masks[3u] == 0u)); + } + self->private_impl.f_call_sequence = 32u; + + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; } - if (v_stack_height != 0u) { - return wuffs_base__make_status(wuffs_bzip2__error__bad_huffman_code_under_subscribed); + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_status(NULL); + + return status; } -// -------- func bzip2.decoder.build_huffman_table +// -------- func bmp.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_bzip2__decoder__build_huffman_table( - wuffs_bzip2__decoder* self, - uint32_t a_which) { - uint32_t v_i = 0; - uint32_t v_bits = 0; - uint16_t v_n_bits = 0; - uint16_t v_child = 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_bmp__decoder__decode_frame_config( + wuffs_bmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - while (v_i < 256u) { - v_bits = (v_i << 24u); - v_n_bits = 0u; - v_child = 0u; - while ((v_child < 257u) && (v_n_bits < 8u)) { - v_child = self->private_data.f_huffman_trees[a_which][v_child][(v_bits >> 31u)]; - v_bits <<= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_n_bits += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_bmp__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_bmp__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - self->private_data.f_huffman_tables[a_which][v_i] = ((uint16_t)((v_child | (v_n_bits << 12u)))); - v_i += 1u; + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; } - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; } -// -------- func bzip2.decoder.invert_bwt +// -------- func bmp.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_bzip2__decoder__invert_bwt( - wuffs_bzip2__decoder* self) { - uint32_t v_i = 0; - uint32_t v_letter = 0; - uint32_t v_sum = 0; - uint32_t v_old_sum = 0; +static wuffs_base__status +wuffs_bmp__decoder__do_decode_frame_config( + wuffs_bmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - v_sum = 0u; - v_i = 0u; - while (v_i < 256u) { - v_old_sum = v_sum; - v_sum += self->private_data.f_letter_counts[v_i]; - self->private_data.f_letter_counts[v_i] = v_old_sum; - v_i += 1u; - } - v_i = 0u; - while (v_i < self->private_impl.f_block_size) { - v_letter = (self->private_data.f_bwt[v_i] & 255u); - self->private_data.f_bwt[(self->private_data.f_letter_counts[v_letter] & 1048575u)] |= (v_i << 12u); - self->private_data.f_letter_counts[v_letter] += 1u; - v_i += 1u; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - return wuffs_base__make_empty_struct(); -} - -// -------- func bzip2.decoder.flush_fast - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_bzip2__decoder__flush_fast( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_dst) { - uint32_t v_flush_pointer = 0; - uint32_t v_flush_repeat_count = 0; - uint8_t v_flush_prev = 0; - uint32_t v_block_checksum_have = 0; - uint32_t v_block_size = 0; - uint32_t v_entry = 0; - uint8_t v_curr = 0; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - v_flush_pointer = self->private_impl.f_flush_pointer; - v_flush_repeat_count = self->private_impl.f_flush_repeat_count; - v_flush_prev = self->private_impl.f_flush_prev; - v_block_checksum_have = self->private_impl.f_block_checksum_have; - v_block_size = self->private_impl.f_block_size; - while ((v_block_size > 0u) && (((uint64_t)(io2_a_dst - iop_a_dst)) >= 255u)) { - if (v_flush_repeat_count < 4u) { - v_entry = self->private_data.f_bwt[v_flush_pointer]; - v_curr = ((uint8_t)(v_entry)); - v_flush_pointer = (v_entry >> 12u); - if (v_curr == v_flush_prev) { - v_flush_repeat_count += 1u; - } else { - v_flush_repeat_count = 1u; + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_block_checksum_have = (WUFFS_BZIP2__REV_CRC32_TABLE[(((uint8_t)((v_block_checksum_have >> 24u))) ^ v_curr)] ^ ((uint32_t)(v_block_checksum_have << 8u))); - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_curr), iop_a_dst += 1); - v_flush_prev = v_curr; - v_block_size -= 1u; - } else { - v_entry = self->private_data.f_bwt[v_flush_pointer]; - v_curr = ((uint8_t)(v_entry)); - v_flush_pointer = (v_entry >> 12u); - v_flush_repeat_count = ((uint32_t)(v_curr)); - while (v_flush_repeat_count > 0u) { - v_block_checksum_have = (WUFFS_BZIP2__REV_CRC32_TABLE[(((uint8_t)((v_block_checksum_have >> 24u))) ^ v_flush_prev)] ^ ((uint32_t)(v_block_checksum_have << 8u))); - if (((uint64_t)(io2_a_dst - iop_a_dst)) > 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_flush_prev), iop_a_dst += 1); - } - v_flush_repeat_count -= 1u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_bmp__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - v_flush_repeat_count = 0u; - v_flush_prev = v_curr; - v_block_size -= 1u; + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + self->private_impl.f_frame_config_io_position, + 0u, + true, + false, + 4278190080u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; } - self->private_impl.f_flush_pointer = v_flush_pointer; - self->private_impl.f_flush_repeat_count = v_flush_repeat_count; - self->private_impl.f_flush_prev = v_flush_prev; - self->private_impl.f_block_checksum_have = v_block_checksum_have; - if (v_block_size <= 900000u) { - self->private_impl.f_block_size = v_block_size; - } - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_empty_struct(); + return status; } -// -------- func bzip2.decoder.flush_slow +// -------- func bmp.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_bzip2__decoder__flush_slow( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_dst) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_bmp__decoder__decode_frame( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_flush_pointer = 0; - uint32_t v_flush_repeat_count = 0; - uint8_t v_flush_prev = 0; - uint32_t v_block_checksum_have = 0; - uint32_t v_block_size = 0; - uint32_t v_entry = 0; - uint8_t v_curr = 0; - - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_flush_slow[0]; - if (coro_susp_point) { - v_flush_pointer = self->private_data.s_flush_slow[0].v_flush_pointer; - v_flush_repeat_count = self->private_data.s_flush_slow[0].v_flush_repeat_count; - v_flush_prev = self->private_data.s_flush_slow[0].v_flush_prev; - v_block_checksum_have = self->private_data.s_flush_slow[0].v_block_checksum_have; - v_block_size = self->private_data.s_flush_slow[0].v_block_size; - v_curr = self->private_data.s_flush_slow[0].v_curr; - } + uint32_t coro_susp_point = self->private_impl.p_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - v_flush_pointer = self->private_impl.f_flush_pointer; - v_flush_repeat_count = self->private_impl.f_flush_repeat_count; - v_flush_prev = self->private_impl.f_flush_prev; - v_block_checksum_have = self->private_impl.f_block_checksum_have; - v_block_size = self->private_impl.f_block_size; - while ((v_block_size > 0u) && ! (self->private_impl.p_flush_slow[0] != 0)) { - if (v_flush_repeat_count < 4u) { - v_entry = self->private_data.f_bwt[v_flush_pointer]; - v_curr = ((uint8_t)(v_entry)); - v_flush_pointer = (v_entry >> 12u); - if (v_curr == v_flush_prev) { - v_flush_repeat_count += 1u; - } else { - v_flush_repeat_count = 1u; - } - v_block_checksum_have = (WUFFS_BZIP2__REV_CRC32_TABLE[(((uint8_t)((v_block_checksum_have >> 24u))) ^ v_curr)] ^ ((uint32_t)(v_block_checksum_have << 8u))); - self->private_data.s_flush_slow[0].scratch = v_curr; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (iop_a_dst == io2_a_dst) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - goto suspend; - } - *iop_a_dst++ = ((uint8_t)(self->private_data.s_flush_slow[0].scratch)); - v_flush_prev = v_curr; - v_block_size -= 1u; - } else { - v_entry = self->private_data.f_bwt[v_flush_pointer]; - v_curr = ((uint8_t)(v_entry)); - v_flush_pointer = (v_entry >> 12u); - v_flush_repeat_count = ((uint32_t)(v_curr)); - while (v_flush_repeat_count > 0u) { - v_block_checksum_have = (WUFFS_BZIP2__REV_CRC32_TABLE[(((uint8_t)((v_block_checksum_have >> 24u))) ^ v_flush_prev)] ^ ((uint32_t)(v_block_checksum_have << 8u))); - self->private_data.s_flush_slow[0].scratch = v_flush_prev; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (iop_a_dst == io2_a_dst) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - goto suspend; - } - *iop_a_dst++ = ((uint8_t)(self->private_data.s_flush_slow[0].scratch)); - v_flush_repeat_count -= 1u; - } - v_flush_repeat_count = 0u; - v_flush_prev = v_curr; - v_block_size -= 1u; + while (true) { + { + wuffs_base__status t_0 = wuffs_bmp__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; } - } - self->private_impl.f_flush_pointer = v_flush_pointer; - self->private_impl.f_flush_repeat_count = v_flush_repeat_count; - self->private_impl.f_flush_prev = v_flush_prev; - self->private_impl.f_block_checksum_have = v_block_checksum_have; - if (v_block_size <= 900000u) { - self->private_impl.f_block_size = v_block_size; + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_bmp__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - goto ok; ok: - self->private_impl.p_flush_slow[0] = 0; + self->private_impl.p_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_flush_slow[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_flush_slow[0].v_flush_pointer = v_flush_pointer; - self->private_data.s_flush_slow[0].v_flush_repeat_count = v_flush_repeat_count; - self->private_data.s_flush_slow[0].v_flush_prev = v_flush_prev; - self->private_data.s_flush_slow[0].v_block_checksum_have = v_block_checksum_have; - self->private_data.s_flush_slow[0].v_block_size = v_block_size; - self->private_data.s_flush_slow[0].v_curr = v_curr; + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func bzip2.decoder.decode_huffman_fast +// -------- func bmp.decoder.do_decode_frame WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_bzip2__decoder__decode_huffman_fast( - wuffs_bzip2__decoder* self, - wuffs_base__io_buffer* a_src) { +wuffs_bmp__decoder__do_decode_frame( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_block_size = 0; - uint8_t v_which = 0; - uint32_t v_ticks = 0; - uint32_t v_section = 0; - uint32_t v_run_shift = 0; - uint16_t v_table_entry = 0; - uint16_t v_child = 0; - uint32_t v_child_ff = 0; - uint32_t v_i = 0; - uint32_t v_j = 0; - uint32_t v_output = 0; - uint32_t v_run = 0; - uint32_t v_mtft0 = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -31802,90 +32760,132 @@ wuffs_bzip2__decoder__decode_huffman_fast( io2_a_src = io0_a_src + a_src->meta.wi; } - v_bits = self->private_impl.f_bits; - v_n_bits = self->private_impl.f_n_bits; - v_block_size = self->private_impl.f_block_size; - v_which = self->private_impl.f_decode_huffman_which; - v_ticks = self->private_impl.f_decode_huffman_ticks; - v_section = self->private_impl.f_decode_huffman_section; - v_run_shift = self->private_impl.f_decode_huffman_run_shift; - while (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { - if (v_ticks > 0u) { - v_ticks -= 1u; - } else { - v_ticks = 49u; - v_section += 1u; - if (v_section >= self->private_impl.f_num_sections) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_number_of_sections); - goto exit; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_which = WUFFS_BZIP2__CLAMP_TO_5[(self->private_data.f_huffman_selectors[(v_section & 32767u)] & 7u)]; - } - v_bits |= (wuffs_base__peek_u32be__no_bounds_check(iop_a_src) >> v_n_bits); - iop_a_src += ((31u - v_n_bits) >> 3u); - v_n_bits |= 24u; - v_table_entry = self->private_data.f_huffman_tables[v_which][(v_bits >> 24u)]; - v_bits <<= (v_table_entry >> 12u); - v_n_bits -= ((uint32_t)((v_table_entry >> 12u))); - v_child = (v_table_entry & 1023u); - while (v_child < 257u) { - v_child = self->private_data.f_huffman_trees[v_which][v_child][(v_bits >> 31u)]; - v_bits <<= 1u; - if (v_n_bits <= 0u) { - status = wuffs_base__make_status(wuffs_bzip2__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_bmp__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - v_n_bits -= 1u; - } - if (v_child < 768u) { - v_child_ff = ((uint32_t)((v_child & 255u))); - v_output = ((uint32_t)(self->private_data.f_mtft[v_child_ff])); - wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_mtft, 1, (1u + v_child_ff)), wuffs_base__make_slice_u8(self->private_data.f_mtft, v_child_ff)); - self->private_data.f_mtft[0u] = ((uint8_t)(v_output)); - self->private_data.f_letter_counts[v_output] += 1u; - self->private_data.f_bwt[v_block_size] = v_output; - if (v_block_size >= self->private_impl.f_max_incl_block_size) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); - goto exit; + if (status.repr) { + goto suspend; } - v_block_size += 1u; - v_run_shift = 0u; - continue; - } else if (v_child == 768u) { - self->private_impl.f_decode_huffman_finished = true; - break; - } - if (v_run_shift >= 23u) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); - goto exit; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } - v_run = ((((uint32_t)(v_child)) & 3u) << v_run_shift); - v_run_shift += 1u; - v_i = v_block_size; - v_j = (v_run + v_block_size); - if (v_j > self->private_impl.f_max_incl_block_size) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); - goto exit; + self->private_data.s_do_decode_frame.scratch = self->private_impl.f_padding; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_block_size = v_j; - v_mtft0 = ((uint32_t)(self->private_data.f_mtft[0u])); - self->private_data.f_letter_counts[v_mtft0] += v_run; - while (v_i < v_j) { - self->private_data.f_bwt[v_i] = v_mtft0; - v_i += 1u; + iop_a_src += self->private_data.s_do_decode_frame.scratch; + if ((self->private_impl.f_width > 0u) && (self->private_impl.f_height > 0u)) { + self->private_impl.f_dst_x = 0u; + if (self->private_impl.f_top_down) { + self->private_impl.f_dst_y = 0u; + self->private_impl.f_dst_y_inc = 1u; + } else { + self->private_impl.f_dst_y = ((uint32_t)(self->private_impl.f_height - 1u)); + self->private_impl.f_dst_y_inc = 4294967295u; + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)), + wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), + wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + while (true) { + if (self->private_impl.f_compression == 0u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_status = wuffs_bmp__decoder__swizzle_none(self, a_dst, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } else if (self->private_impl.f_compression < 3u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_status = wuffs_bmp__decoder__swizzle_rle(self, a_dst, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } else if (self->private_impl.f_compression == 3u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_status = wuffs_bmp__decoder__swizzle_bitfields(self, a_dst, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } else { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_status = wuffs_bmp__decoder__swizzle_low_bit_depth(self, a_dst, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (v_status.repr != wuffs_bmp__note__internal_note_short_read) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + } + self->private_data.s_do_decode_frame.scratch = self->private_impl.f_pending_pad; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame.scratch; + self->private_impl.f_pending_pad = 0u; } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; } - self->private_impl.f_bits = v_bits; - self->private_impl.f_n_bits = v_n_bits; - self->private_impl.f_block_size = v_block_size; - self->private_impl.f_decode_huffman_which = v_which; - self->private_impl.f_decode_huffman_ticks = v_ticks; - self->private_impl.f_decode_huffman_section = v_section; - self->private_impl.f_decode_huffman_run_shift = v_run_shift; - status = wuffs_base__make_status(NULL); - goto ok; - ok: + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + goto exit; exit: if (a_src && a_src->data.ptr) { @@ -31895,24 +32895,27 @@ wuffs_bzip2__decoder__decode_huffman_fast( return status; } -// -------- func bzip2.decoder.decode_huffman_slow +// -------- func bmp.decoder.swizzle_none WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_bzip2__decoder__decode_huffman_slow( - wuffs_bzip2__decoder* self, +wuffs_bmp__decoder__swizzle_none( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint32_t v_node_index = 0; - uint16_t v_child = 0; - uint32_t v_child_ff = 0; - uint32_t v_i = 0; - uint32_t v_j = 0; - uint32_t v_output = 0; - uint32_t v_run = 0; - uint32_t v_mtft0 = 0; + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + uint32_t v_src_bytes_per_pixel = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_i = 0; + uint64_t v_j = 0; + uint64_t v_n = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -31925,99 +32928,90 @@ wuffs_bzip2__decoder__decode_huffman_slow( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_huffman_slow[0]; - if (coro_susp_point) { - v_node_index = self->private_data.s_decode_huffman_slow[0].v_node_index; + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while ( ! (self->private_impl.p_decode_huffman_slow[0] != 0)) { - if (self->private_impl.f_decode_huffman_ticks > 0u) { - self->private_impl.f_decode_huffman_ticks -= 1u; - } else { - self->private_impl.f_decode_huffman_ticks = 49u; - self->private_impl.f_decode_huffman_section += 1u; - if (self->private_impl.f_decode_huffman_section >= self->private_impl.f_num_sections) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_number_of_sections); - goto exit; - } - self->private_impl.f_decode_huffman_which = WUFFS_BZIP2__CLAMP_TO_5[(self->private_data.f_huffman_selectors[(self->private_impl.f_decode_huffman_section & 32767u)] & 7u)]; + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + label__outer__continue:; + while (true) { + while (self->private_impl.f_pending_pad > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); + goto ok; } - v_node_index = 0u; - while (true) { - if (self->private_impl.f_n_bits <= 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); - self->private_impl.f_n_bits = 8u; - } - v_child = self->private_data.f_huffman_trees[self->private_impl.f_decode_huffman_which][v_node_index][(self->private_impl.f_bits >> 31u)]; - self->private_impl.f_bits <<= 1u; - self->private_impl.f_n_bits -= 1u; - if (v_child < 257u) { - v_node_index = ((uint32_t)(v_child)); - continue; - } else if (v_child < 768u) { - v_child_ff = ((uint32_t)((v_child & 255u))); - v_output = ((uint32_t)(self->private_data.f_mtft[v_child_ff])); - wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_mtft, 1, (1u + v_child_ff)), wuffs_base__make_slice_u8(self->private_data.f_mtft, v_child_ff)); - self->private_data.f_mtft[0u] = ((uint8_t)(v_output)); - self->private_data.f_letter_counts[v_output] += 1u; - self->private_data.f_bwt[self->private_impl.f_block_size] = v_output; - if (self->private_impl.f_block_size >= self->private_impl.f_max_incl_block_size) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); - goto exit; + self->private_impl.f_pending_pad -= 1u; + iop_a_src += 1u; + } + while (true) { + if (self->private_impl.f_dst_x == self->private_impl.f_width) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + if (self->private_impl.f_height > 0u) { + self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; } - self->private_impl.f_block_size += 1u; - self->private_impl.f_decode_huffman_run_shift = 0u; - break; - } else if (v_child == 768u) { - self->private_impl.f_decode_huffman_finished = true; goto label__outer__break; + } else if (self->private_impl.f_pad_per_row != 0u) { + self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; + goto label__outer__continue; } - if (self->private_impl.f_decode_huffman_run_shift >= 23u) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); + } + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i >= ((uint64_t)(v_dst.len))) { + if (self->private_impl.f_bits_per_pixel > 32u) { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); goto exit; } - v_run = ((((uint32_t)(v_child)) & 3u) << self->private_impl.f_decode_huffman_run_shift); - self->private_impl.f_decode_huffman_run_shift += 1u; - v_i = self->private_impl.f_block_size; - v_j = (v_run + self->private_impl.f_block_size); - if (v_j > self->private_impl.f_max_incl_block_size) { - status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); + v_src_bytes_per_pixel = (self->private_impl.f_bits_per_pixel / 8u); + if (v_src_bytes_per_pixel == 0u) { + status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); goto exit; } - self->private_impl.f_block_size = v_j; - v_mtft0 = ((uint32_t)(self->private_data.f_mtft[0u])); - self->private_data.f_letter_counts[v_mtft0] += v_run; - while (v_i < v_j) { - self->private_data.f_bwt[v_i] = v_mtft0; - v_i += 1u; + v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); + v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); + v_j = v_n; + while (v_j >= 8u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { + iop_a_src += (v_src_bytes_per_pixel * 8u); + } + v_j -= 8u; } - break; + while (v_j > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { + iop_a_src += (v_src_bytes_per_pixel * 1u); + } + v_j -= 1u; + } + } else { + v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( + &self->private_impl.f_swizzler, + wuffs_base__slice_u8__subslice_i(v_dst, v_i), + v_dst_palette, + &iop_a_src, + io2_a_src); + } + if (v_n == 0u) { + status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); + goto ok; } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); } - label__outer__break:; - - goto ok; - ok: - self->private_impl.p_decode_huffman_slow[0] = 0; - goto exit; } + label__outer__break:; + status = wuffs_base__make_status(NULL); + goto ok; - goto suspend; - suspend: - self->private_impl.p_decode_huffman_slow[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_huffman_slow[0].v_node_index = v_node_index; - + ok: goto exit; exit: if (a_src && a_src->data.ptr) { @@ -32027,256 +33021,33 @@ wuffs_bzip2__decoder__decode_huffman_slow( return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BZIP2) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CBOR) - -// ---------------- Status Codes Implementations - -const char wuffs_cbor__error__bad_input[] = "#cbor: bad input"; -const char wuffs_cbor__error__unsupported_recursion_depth[] = "#cbor: unsupported recursion depth"; -const char wuffs_cbor__error__internal_error_inconsistent_i_o[] = "#cbor: internal error: inconsistent I/O"; -const char wuffs_cbor__error__internal_error_inconsistent_token_length[] = "#cbor: internal error: inconsistent token length"; - -// ---------------- Private Consts - -static const uint32_t -WUFFS_CBOR__LITERALS[4] WUFFS_BASE__POTENTIALLY_UNUSED = { - 8388612, 8388616, 8388610, 8388609, -}; - -static const uint8_t -WUFFS_CBOR__TOKEN_LENGTHS[32] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, - 2, 3, 5, 9, 0, 0, 0, 1, -}; - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -// ---------------- VTables - -const wuffs_base__token_decoder__func_ptrs -wuffs_cbor__decoder__func_ptrs_for__wuffs_base__token_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__token_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_cbor__decoder__decode_tokens), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_cbor__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_cbor__decoder__history_retain_length), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_cbor__decoder__set_quirk), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_cbor__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_cbor__decoder__initialize( - wuffs_cbor__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } - - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); - } - } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__token_decoder.vtable_name = - wuffs_base__token_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__token_decoder.function_pointers = - (const void*)(&wuffs_cbor__decoder__func_ptrs_for__wuffs_base__token_decoder); - return wuffs_base__make_status(NULL); -} - -wuffs_cbor__decoder* -wuffs_cbor__decoder__alloc(void) { - wuffs_cbor__decoder* x = - (wuffs_cbor__decoder*)(calloc(sizeof(wuffs_cbor__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_cbor__decoder__initialize( - x, sizeof(wuffs_cbor__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_cbor__decoder(void) { - return sizeof(wuffs_cbor__decoder); -} - -// ---------------- Function Implementations - -// -------- func cbor.decoder.get_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_cbor__decoder__get_quirk( - const wuffs_cbor__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func cbor.decoder.set_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_cbor__decoder__set_quirk( - wuffs_cbor__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - return wuffs_base__make_status(wuffs_base__error__unsupported_option); -} - -// -------- func cbor.decoder.history_retain_length - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_cbor__decoder__history_retain_length( - const wuffs_cbor__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func cbor.decoder.workbuf_len - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_cbor__decoder__workbuf_len( - const wuffs_cbor__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } - - return wuffs_base__utility__empty_range_ii_u64(); -} - -// -------- func cbor.decoder.decode_tokens +// -------- func bmp.decoder.swizzle_rle WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_cbor__decoder__decode_tokens( - wuffs_cbor__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; +static wuffs_base__status +wuffs_bmp__decoder__swizzle_rle( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint64_t v_string_length = 0; - uint64_t v_n64 = 0; - uint32_t v_depth = 0; - uint32_t v_stack_byte = 0; - uint32_t v_stack_bit = 0; - uint32_t v_stack_val = 0; - uint32_t v_token_length = 0; - uint32_t v_vminor = 0; - uint32_t v_vminor_alt = 0; - uint32_t v_continued = 0; - uint8_t v_c = 0; - uint8_t v_c_major = 0; - uint8_t v_c_minor = 0; - bool v_tagged = false; - uint8_t v_indefinite_string_major_type = 0; + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_row = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_i = 0; + uint64_t v_n = 0; + uint32_t v_p0 = 0; + uint8_t v_code = 0; + uint8_t v_indexes[2] = {0}; + uint32_t v_rle_state = 0; + uint32_t v_chunk_bits = 0; + uint32_t v_chunk_count = 0; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -32288,1231 +33059,590 @@ wuffs_cbor__decoder__decode_tokens( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_tokens[0]; - if (coro_susp_point) { - v_string_length = self->private_data.s_decode_tokens[0].v_string_length; - v_depth = self->private_data.s_decode_tokens[0].v_depth; - v_tagged = self->private_data.s_decode_tokens[0].v_tagged; - v_indefinite_string_major_type = self->private_data.s_decode_tokens[0].v_indefinite_string_major_type; + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if (self->private_impl.f_end_of_data) { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_rle_state = self->private_impl.f_rle_state; + label__outer__continue:; + while (true) { + v_row = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_row.len))) { + v_row = wuffs_base__slice_u8__subslice_j(v_row, v_dst_bytes_per_row); } - label__outer__continue:; + label__middle__continue:; while (true) { + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i <= ((uint64_t)(v_row.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_row, v_i); + } else { + v_dst = wuffs_base__utility__empty_slice_u8(); + } while (true) { - do { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - goto label__outer__continue; + if (v_rle_state == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_cbor__error__bad_input); + v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + if (v_code == 0u) { + v_rle_state = 2u; + continue; + } + self->private_impl.f_rle_length = ((uint32_t)(v_code)); + v_rle_state = 1u; + continue; + } else if (v_rle_state == 1u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; + } + v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + if (self->private_impl.f_bits_per_pixel == 8u) { + v_p0 = 0u; + while (v_p0 < self->private_impl.f_rle_length) { + self->private_data.f_scratch[v_p0] = v_code; + v_p0 += 1u; + } + } else { + v_indexes[0u] = ((uint8_t)(((uint8_t)(v_code >> 4u)))); + v_indexes[1u] = ((uint8_t)(v_code & 15u)); + v_p0 = 0u; + while (v_p0 < self->private_impl.f_rle_length) { + self->private_data.f_scratch[(v_p0 + 0u)] = v_indexes[0u]; + self->private_data.f_scratch[(v_p0 + 1u)] = v_indexes[1u]; + v_p0 += 2u; + } + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_rle_length)); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, self->private_impl.f_rle_length); + v_rle_state = 0u; + goto label__middle__continue; + } else if (v_rle_state == 2u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; + } + v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + if (v_code < 2u) { + if ((self->private_impl.f_dst_y >= self->private_impl.f_height) && (v_code == 0u)) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); goto exit; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_dst, v_dst_palette, 18446744073709551615u); + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; + if (v_code > 0u) { + goto label__outer__break; + } + v_rle_state = 0u; goto label__outer__continue; + } else if (v_code == 2u) { + v_rle_state = 4u; + continue; } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if ((v_indefinite_string_major_type != 0u) && (v_indefinite_string_major_type != (v_c >> 5u))) { - if (v_c != 255u) { - status = wuffs_base__make_status(wuffs_cbor__error__bad_input); - goto exit; + self->private_impl.f_rle_length = ((uint32_t)(v_code)); + self->private_impl.f_rle_padded = ((self->private_impl.f_bits_per_pixel == 8u) && (((uint8_t)(v_code & 1u)) != 0u)); + v_rle_state = 3u; + continue; + } else if (v_rle_state == 3u) { + if (self->private_impl.f_bits_per_pixel == 8u) { + v_n = wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( + &self->private_impl.f_swizzler, + self->private_impl.f_rle_length, + v_dst, + v_dst_palette, + &iop_a_src, + io2_a_src); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_rle_length, ((uint32_t)(v_n))); + } else { + v_chunk_count = ((self->private_impl.f_rle_length + 3u) / 4u); + v_p0 = 0u; + while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 2u)) { + v_chunk_bits = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2u; + self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((15u & (v_chunk_bits >> 12u)))); + self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((15u & (v_chunk_bits >> 8u)))); + self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((15u & (v_chunk_bits >> 4u)))); + self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((15u & (v_chunk_bits >> 0u)))); + v_p0 = ((v_p0 & 255u) + 4u); + v_chunk_count -= 1u; } - v_vminor = 4194560u; - if (v_indefinite_string_major_type == 3u) { - v_vminor |= 19u; + v_p0 = wuffs_base__u32__min(v_p0, self->private_impl.f_rle_length); + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, v_p0)); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, v_p0); + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_rle_length, v_p0); + } + if (self->private_impl.f_rle_length > 0u) { + break; + } + if (self->private_impl.f_rle_padded) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; } - v_indefinite_string_major_type = 0u; iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; + self->private_impl.f_rle_padded = false; + } + v_rle_state = 0u; + goto label__middle__continue; + } else if (v_rle_state == 4u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; } + self->private_impl.f_rle_delta_x = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); iop_a_src += 1u; - v_c_major = ((uint8_t)((v_c >> 5u))); - v_c_minor = (v_c & 31u); - if (v_c_minor < 24u) { - v_string_length = ((uint64_t)(v_c_minor)); - } else { - while (true) { - if (v_c_minor == 24u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= 1u) { - v_string_length = ((uint64_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))); - iop_a_src += 1u; - break; - } - } else if (v_c_minor == 25u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= 2u) { - v_string_length = ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2u; - break; - } - } else if (v_c_minor == 26u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { - v_string_length = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4u; - break; - } - } else if (v_c_minor == 27u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= 8u) { - v_string_length = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); - iop_a_src += 8u; - break; - } - } else { - v_string_length = 0u; - break; - } - if (iop_a_src > io1_a_src) { - iop_a_src--; - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_cbor__error__bad_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - goto label__outer__continue; - } - status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); - goto exit; - } + v_rle_state = 5u; + continue; + } + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; + } + v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + if (self->private_impl.f_rle_delta_x > 0u) { + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_dst, v_dst_palette, ((uint64_t)(self->private_impl.f_rle_delta_x))); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(self->private_impl.f_rle_delta_x))); + self->private_impl.f_rle_delta_x = 0u; + if (self->private_impl.f_dst_x > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); + goto exit; } - if (v_c_major == 0u) { - if (v_c_minor < 26u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((14680064u | ((uint32_t)((v_string_length & 65535u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } else if (v_c_minor < 28u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((14680064u | ((uint32_t)((v_string_length >> 46u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - *iop_a_dst++ = wuffs_base__make_token( - (~(v_string_length & 70368744177663u) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } - } else if (v_c_major == 1u) { - if (v_c_minor < 26u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((12582912u | (2097151u - ((uint32_t)((v_string_length & 65535u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } else if (v_c_minor < 28u) { - if (v_string_length < 9223372036854775808u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((12582912u | (2097151u - ((uint32_t)((v_string_length >> 46u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - *iop_a_dst++ = wuffs_base__make_token( - (~((18446744073709551615u - v_string_length) & 70368744177663u) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } else { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | - (((uint64_t)(16777216u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(9u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } - goto label__goto_parsed_a_leaf_value__break; - } - } else if (v_c_major == 2u) { - if (v_c_minor < 28u) { - if (v_string_length == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194560u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194560u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } else if (v_c_minor == 31u) { - if (v_indefinite_string_major_type != 0u) { - break; - } - v_indefinite_string_major_type = 2u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194560u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__outer__continue; - } else { - break; - } - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - continue; - } - v_n64 = wuffs_base__u64__min(v_string_length, ((uint64_t)(io2_a_src - iop_a_src))); - v_token_length = ((uint32_t)((v_n64 & 65535u))); - if (v_n64 > 65535u) { - v_token_length = 65535u; - } else if (v_token_length <= 0u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_cbor__error__bad_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - continue; - } - if (((uint64_t)(io2_a_src - iop_a_src)) < ((uint64_t)(v_token_length))) { - status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_token_length); - goto exit; - } - v_string_length -= ((uint64_t)(v_token_length)); - v_continued = 0u; - if ((v_string_length > 0u) || (v_indefinite_string_major_type > 0u)) { - v_continued = 1u; - } - iop_a_src += v_token_length; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194816u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_continued)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_token_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (v_string_length > 0u) { - continue; - } else if (v_indefinite_string_major_type > 0u) { - goto label__outer__continue; - } - goto label__goto_parsed_a_leaf_value__break; - } - } else if (v_c_major == 3u) { - if (v_c_minor < 28u) { - if (v_string_length == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } else if (v_c_minor == 31u) { - if (v_indefinite_string_major_type != 0u) { - break; - } - v_indefinite_string_major_type = 3u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__outer__continue; - } else { - break; - } - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - continue; - } - v_n64 = wuffs_base__u64__min(v_string_length, 65535u); - v_n64 = ((uint64_t)(wuffs_base__utf_8__longest_valid_prefix(iop_a_src, - ((size_t)(wuffs_base__u64__min(((uint64_t)(io2_a_src - iop_a_src)), v_n64)))))); - v_token_length = ((uint32_t)((v_n64 & 65535u))); - if (v_token_length <= 0u) { - if ((a_src && a_src->meta.closed) || (((uint64_t)(io2_a_src - iop_a_src)) >= 4u)) { - status = wuffs_base__make_status(wuffs_cbor__error__bad_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); - continue; - } - if (((uint64_t)(io2_a_src - iop_a_src)) < ((uint64_t)(v_token_length))) { - status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_token_length); - goto exit; - } - v_string_length -= ((uint64_t)(v_token_length)); - v_continued = 0u; - if ((v_string_length > 0u) || (v_indefinite_string_major_type > 0u)) { - v_continued = 1u; - } - iop_a_src += v_token_length; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_continued)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_token_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (v_string_length > 0u) { - continue; - } else if (v_indefinite_string_major_type > 0u) { - goto label__outer__continue; - } - goto label__goto_parsed_a_leaf_value__break; - } - } else if (v_c_major == 4u) { - if (WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor] == 0u) { - break; - } else if (v_depth >= 1024u) { - v_token_length = ((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])); - while ((v_token_length > 0u) && (iop_a_src > io1_a_src)) { - iop_a_src--; - v_token_length -= 1u; - } - status = wuffs_base__make_status(wuffs_cbor__error__unsupported_recursion_depth); - goto exit; - } - v_vminor = 2105361u; - v_vminor_alt = 2101282u; - if (v_depth > 0u) { - v_stack_byte = ((v_depth - 1u) / 16u); - v_stack_bit = (((v_depth - 1u) & 15u) * 2u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - v_vminor = 2105377u; - v_vminor_alt = 2105378u; - } else { - v_vminor = 2105409u; - v_vminor_alt = 2113570u; - } - } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (v_c_minor == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } - v_stack_byte = (v_depth / 16u); - v_stack_bit = ((v_depth & 15u) * 2u); - self->private_data.f_stack[v_stack_byte] &= (4294967295u ^ (((uint32_t)(3u)) << v_stack_bit)); - self->private_data.f_container_num_remaining[v_depth] = v_string_length; - v_depth += 1u; - v_tagged = false; - goto label__outer__continue; - } else if (v_c_major == 5u) { - if (WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor] == 0u) { - break; - } else if (v_depth >= 1024u) { - v_token_length = ((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])); - while ((v_token_length > 0u) && (iop_a_src > io1_a_src)) { - iop_a_src--; - v_token_length -= 1u; - } - status = wuffs_base__make_status(wuffs_cbor__error__unsupported_recursion_depth); + } + if (v_code > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_code -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + while (true) { + self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); goto exit; } - v_vminor = 2113553u; - v_vminor_alt = 2101314u; - if (v_depth > 0u) { - v_stack_byte = ((v_depth - 1u) / 16u); - v_stack_bit = (((v_depth - 1u) & 15u) * 2u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - v_vminor = 2113569u; - v_vminor_alt = 2105410u; - } else { - v_vminor = 2113601u; - v_vminor_alt = 2113602u; - } - } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (v_c_minor == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; + v_row = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_row.len))) { + v_row = wuffs_base__slice_u8__subslice_j(v_row, v_dst_bytes_per_row); } - v_stack_byte = (v_depth / 16u); - v_stack_bit = ((v_depth & 15u) * 2u); - self->private_data.f_stack[v_stack_byte] |= (((uint32_t)(3u)) << v_stack_bit); - self->private_data.f_container_num_remaining[v_depth] = v_string_length; - v_depth += 1u; - v_tagged = false; - goto label__outer__continue; - } else if (v_c_major == 6u) { - if (v_c_minor >= 28u) { + if (v_code <= 0u) { + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, ((uint64_t)(self->private_impl.f_dst_x))); break; } - if (v_string_length < 262144u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | - (((uint64_t)((4194304u | ((uint32_t)(v_string_length))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } else { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | - (((uint64_t)((4194304u | ((uint32_t)((v_string_length >> 46u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - *iop_a_dst++ = wuffs_base__make_token( - (~(v_string_length & 70368744177663u) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } - v_tagged = true; - goto label__outer__continue; - } else if (v_c_major == 7u) { - if (v_c_minor < 20u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | - (((uint64_t)((8388608u | ((uint32_t)((v_string_length & 255u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } else if (v_c_minor < 24u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(WUFFS_CBOR__LITERALS[(v_c_minor & 3u)])) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } else if (v_c_minor == 24u) { - if (v_string_length < 24u) { - if ( ! (iop_a_src > io1_a_src)) { - status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); - goto exit; - } - iop_a_src--; - break; - } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | - (((uint64_t)((8388608u | ((uint32_t)((v_string_length & 255u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } else if (v_c_minor < 28u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(10490113u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } else if (v_c_minor == 31u) { - if (v_tagged || (v_depth <= 0u)) { - break; - } - v_depth -= 1u; - if (self->private_data.f_container_num_remaining[v_depth] != 0u) { - break; - } - v_stack_byte = (v_depth / 16u); - v_stack_bit = ((v_depth & 15u) * 2u); - v_stack_val = (3u & (self->private_data.f_stack[v_stack_byte] >> v_stack_bit)); - if (v_stack_val == 1u) { - break; - } - if (v_stack_val != 3u) { - v_vminor_alt = 2097186u; - } else { - v_vminor_alt = 2097218u; - } - if (v_depth <= 0u) { - v_vminor_alt |= 4096u; - } else { - v_stack_byte = ((v_depth - 1u) / 16u); - v_stack_bit = (((v_depth - 1u) & 15u) * 2u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - v_vminor_alt |= 8192u; - } else { - v_vminor_alt |= 16384u; - } - } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__goto_parsed_a_leaf_value__break; - } - } - } while (0); - if (iop_a_src > io1_a_src) { - iop_a_src--; - status = wuffs_base__make_status(wuffs_cbor__error__bad_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); - goto exit; - } - label__goto_parsed_a_leaf_value__break:; - v_tagged = false; - while (v_depth > 0u) { - v_stack_byte = ((v_depth - 1u) / 16u); - v_stack_bit = (((v_depth - 1u) & 15u) * 2u); - self->private_data.f_stack[v_stack_byte] ^= (((uint32_t)(1u)) << (v_stack_bit + 1u)); - if (1u == (3u & (self->private_data.f_stack[v_stack_byte] >> v_stack_bit))) { - goto label__outer__continue; - } - if (self->private_data.f_container_num_remaining[(v_depth - 1u)] <= 0u) { - goto label__outer__continue; - } - self->private_data.f_container_num_remaining[(v_depth - 1u)] -= 1u; - if (self->private_data.f_container_num_remaining[(v_depth - 1u)] > 0u) { - goto label__outer__continue; - } - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - continue; - } - v_depth -= 1u; - v_stack_byte = (v_depth / 16u); - v_stack_bit = ((v_depth & 15u) * 2u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - v_vminor_alt = 2097186u; - } else { - v_vminor_alt = 2097218u; - } - if (v_depth <= 0u) { - v_vminor_alt |= 4096u; - } else { - v_stack_byte = ((v_depth - 1u) / 16u); - v_stack_bit = (((v_depth - 1u) & 15u) * 2u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - v_vminor_alt |= 8192u; - } else { - v_vminor_alt |= 16384u; + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, 18446744073709551615u); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_code -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif } } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_rle_state = 0u; + goto label__middle__continue; } - break; + self->private_impl.f_rle_state = v_rle_state; + status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); + goto ok; } - self->private_impl.f_end_of_data = true; - - ok: - self->private_impl.p_decode_tokens[0] = 0; - goto exit; } + label__outer__break:; + while (self->private_impl.f_dst_y < self->private_impl.f_height) { + v_row = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_row.len))) { + v_row = wuffs_base__slice_u8__subslice_j(v_row, v_dst_bytes_per_row); + } + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, 18446744073709551615u); + self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; + } + status = wuffs_base__make_status(NULL); + goto ok; - goto suspend; - suspend: - self->private_impl.p_decode_tokens[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - self->private_data.s_decode_tokens[0].v_string_length = v_string_length; - self->private_data.s_decode_tokens[0].v_depth = v_depth; - self->private_data.s_decode_tokens[0].v_tagged = v_tagged; - self->private_data.s_decode_tokens[0].v_indefinite_string_major_type = v_indefinite_string_major_type; - + ok: goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CBOR) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC32) +// -------- func bmp.decoder.swizzle_bitfields -// ---------------- Status Codes Implementations +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bmp__decoder__swizzle_bitfields( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// ---------------- Private Consts + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_i = 0; + uint64_t v_n = 0; + uint32_t v_p0 = 0; + uint32_t v_p1 = 0; + uint32_t v_p1_temp = 0; + uint32_t v_num_bits = 0; + uint32_t v_c = 0; + uint32_t v_c32 = 0; + uint32_t v_channel = 0; -static const uint32_t -WUFFS_CRC32__IEEE_TABLE[16][256] WUFFS_BASE__POTENTIALLY_UNUSED = { - { - 0, 1996959894, 3993919788, 2567524794, 124634137, 1886057615, 3915621685, 2657392035, - 249268274, 2044508324, 3772115230, 2547177864, 162941995, 2125561021, 3887607047, 2428444049, - 498536548, 1789927666, 4089016648, 2227061214, 450548861, 1843258603, 4107580753, 2211677639, - 325883990, 1684777152, 4251122042, 2321926636, 335633487, 1661365465, 4195302755, 2366115317, - 997073096, 1281953886, 3579855332, 2724688242, 1006888145, 1258607687, 3524101629, 2768942443, - 901097722, 1119000684, 3686517206, 2898065728, 853044451, 1172266101, 3705015759, 2882616665, - 651767980, 1373503546, 3369554304, 3218104598, 565507253, 1454621731, 3485111705, 3099436303, - 671266974, 1594198024, 3322730930, 2970347812, 795835527, 1483230225, 3244367275, 3060149565, - 1994146192, 31158534, 2563907772, 4023717930, 1907459465, 112637215, 2680153253, 3904427059, - 2013776290, 251722036, 2517215374, 3775830040, 2137656763, 141376813, 2439277719, 3865271297, - 1802195444, 476864866, 2238001368, 4066508878, 1812370925, 453092731, 2181625025, 4111451223, - 1706088902, 314042704, 2344532202, 4240017532, 1658658271, 366619977, 2362670323, 4224994405, - 1303535960, 984961486, 2747007092, 3569037538, 1256170817, 1037604311, 2765210733, 3554079995, - 1131014506, 879679996, 2909243462, 3663771856, 1141124467, 855842277, 2852801631, 3708648649, - 1342533948, 654459306, 3188396048, 3373015174, 1466479909, 544179635, 3110523913, 3462522015, - 1591671054, 702138776, 2966460450, 3352799412, 1504918807, 783551873, 3082640443, 3233442989, - 3988292384, 2596254646, 62317068, 1957810842, 3939845945, 2647816111, 81470997, 1943803523, - 3814918930, 2489596804, 225274430, 2053790376, 3826175755, 2466906013, 167816743, 2097651377, - 4027552580, 2265490386, 503444072, 1762050814, 4150417245, 2154129355, 426522225, 1852507879, - 4275313526, 2312317920, 282753626, 1742555852, 4189708143, 2394877945, 397917763, 1622183637, - 3604390888, 2714866558, 953729732, 1340076626, 3518719985, 2797360999, 1068828381, 1219638859, - 3624741850, 2936675148, 906185462, 1090812512, 3747672003, 2825379669, 829329135, 1181335161, - 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2493785488, 986493953, 319029491, 3178008930, 1083533591, 4009621638, 3342158964, 1767759333, - 3887577823, 1239362382, 1612160956, 3464433197, 864482904, 2649647049, 3022443323, 441336490, - 1706844275, 3419730402, 3793503504, 1282724993, 2978819316, 535149925, 908921239, 2554697734, - 380632892, 3100077741, 2433735263, 1063734222, 3265180603, 1828069930, 1161729752, 3948283721, - 2207997677, 770953084, 71007118, 2857626143, 1470763626, 4190274555, 3490330377, 2120394392, - 4035494306, 1591758899, 1999168705, 3644880208, 616140069, 2328960180, 2736367686, 225524183, - }, -}; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } -static const uint8_t -WUFFS_CRC32__IEEE_X86_SSE42_K1K2[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 212, 43, 68, 84, 1, 0, 0, 0, - 150, 21, 228, 198, 1, 0, 0, 0, -}; - -static const uint8_t -WUFFS_CRC32__IEEE_X86_SSE42_K3K4[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 208, 151, 25, 117, 1, 0, 0, 0, - 158, 0, 170, 204, 0, 0, 0, 0, -}; - -static const uint8_t -WUFFS_CRC32__IEEE_X86_SSE42_K5ZZ[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 36, 97, 205, 99, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, -}; - -static const uint8_t -WUFFS_CRC32__IEEE_X86_SSE42_PXMU[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 65, 6, 113, 219, 1, 0, 0, 0, - 65, 22, 1, 247, 1, 0, 0, 0, -}; - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x); + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + label__outer__continue:; + while (true) { + while (self->private_impl.f_pending_pad > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); + goto ok; + } + self->private_impl.f_pending_pad -= 1u; + iop_a_src += 1u; + } + while (true) { + if (self->private_impl.f_dst_x == self->private_impl.f_width) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + if (self->private_impl.f_height > 0u) { + self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; + } + goto label__outer__break; + } else if (self->private_impl.f_pad_per_row != 0u) { + self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; + goto label__outer__continue; + } + } + v_p1_temp = ((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x)); + v_p1 = wuffs_base__u32__min(v_p1_temp, 256u); + v_p0 = 0u; + while (v_p0 < v_p1) { + if (self->private_impl.f_bits_per_pixel == 16u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + break; + } + v_c32 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2u; + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + break; + } + v_c32 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4u; + } + v_channel = 0u; + while (v_channel < 4u) { + if (self->private_impl.f_channel_num_bits[v_channel] == 0u) { + self->private_data.f_scratch[((8u * v_p0) + (2u * v_channel) + 0u)] = 255u; + self->private_data.f_scratch[((8u * v_p0) + (2u * v_channel) + 1u)] = 255u; + } else { + v_c = ((v_c32 & self->private_impl.f_channel_masks[v_channel]) >> self->private_impl.f_channel_shifts[v_channel]); + v_num_bits = ((uint32_t)(self->private_impl.f_channel_num_bits[v_channel])); + while (v_num_bits < 16u) { + v_c |= ((uint32_t)(v_c << v_num_bits)); + v_num_bits *= 2u; + } + v_c >>= (v_num_bits - 16u); + self->private_data.f_scratch[((8u * v_p0) + (2u * v_channel) + 0u)] = ((uint8_t)((v_c >> 0u))); + self->private_data.f_scratch[((8u * v_p0) + (2u * v_channel) + 1u)] = ((uint8_t)((v_c >> 8u))); + } + v_channel += 1u; + } + v_p0 += 1u; + } + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i >= ((uint64_t)(v_dst.len))) { + v_n = ((uint64_t)(v_p0)); + } else { + v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, (8u * v_p0))); + } + if (v_n == 0u) { + status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); + goto ok; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + } + } + label__outer__break:; + status = wuffs_base__make_status(NULL); + goto ok; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up__choosy_default( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x); + ok: + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -#if defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up_arm_crc32( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) + return status; +} -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up_x86_avx2( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +// -------- func bmp.decoder.swizzle_low_bit_depth -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up_x86_sse42( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - -// ---------------- VTables - -const wuffs_base__hasher_u32__func_ptrs -wuffs_crc32__ieee_hasher__func_ptrs_for__wuffs_base__hasher_u32 = { - (uint32_t(*)(const void*))(&wuffs_crc32__ieee_hasher__checksum_u32), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_crc32__ieee_hasher__get_quirk), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_crc32__ieee_hasher__set_quirk), - (wuffs_base__empty_struct(*)(void*, - wuffs_base__slice_u8))(&wuffs_crc32__ieee_hasher__update), - (uint32_t(*)(void*, - wuffs_base__slice_u8))(&wuffs_crc32__ieee_hasher__update_u32), -}; +static wuffs_base__status +wuffs_bmp__decoder__swizzle_low_bit_depth( + wuffs_bmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// ---------------- Initializer Implementations + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_i = 0; + uint64_t v_n = 0; + uint32_t v_p0 = 0; + uint32_t v_chunk_bits = 0; + uint32_t v_chunk_count = 0; + uint32_t v_pixels_per_chunk = 0; -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_crc32__ieee_hasher__initialize( - wuffs_crc32__ieee_hasher* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_scratch, 1024, 2048)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (true) { + if (self->private_impl.f_dst_x == self->private_impl.f_width) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + break; + } } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i >= ((uint64_t)(v_dst.len))) { + if (self->private_impl.f_bits_per_pixel == 1u) { + v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 31u) / 32u); + v_pixels_per_chunk = 32u; + } else if (self->private_impl.f_bits_per_pixel == 2u) { + v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 15u) / 16u); + v_pixels_per_chunk = 16u; + } else { + v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 7u) / 8u); + v_pixels_per_chunk = 8u; + } + while ((v_chunk_count >= 64u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 256u)) { + iop_a_src += 256u; + self->private_impl.f_dst_x = wuffs_base__u32__min(self->private_impl.f_width, ((uint32_t)(self->private_impl.f_dst_x + (v_pixels_per_chunk * 64u)))); + v_chunk_count -= 64u; + } + while ((v_chunk_count >= 8u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 32u)) { + iop_a_src += 32u; + self->private_impl.f_dst_x = wuffs_base__u32__min(self->private_impl.f_width, ((uint32_t)(self->private_impl.f_dst_x + (v_pixels_per_chunk * 8u)))); + v_chunk_count -= 8u; + } + while (v_chunk_count > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); + goto ok; + } + iop_a_src += 4u; + self->private_impl.f_dst_x = wuffs_base__u32__min(self->private_impl.f_width, ((uint32_t)(self->private_impl.f_dst_x + (v_pixels_per_chunk * 1u)))); + v_chunk_count -= 1u; + } + continue; + } + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_i); + v_p0 = 0u; + if (self->private_impl.f_bits_per_pixel == 1u) { + v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 31u) / 32u); + v_chunk_count = wuffs_base__u32__min(v_chunk_count, 16u); + while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 4u)) { + v_chunk_bits = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4u; + self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((1u & (v_chunk_bits >> 31u)))); + self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((1u & (v_chunk_bits >> 30u)))); + self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((1u & (v_chunk_bits >> 29u)))); + self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((1u & (v_chunk_bits >> 28u)))); + self->private_data.f_scratch[(v_p0 + 4u)] = ((uint8_t)((1u & (v_chunk_bits >> 27u)))); + self->private_data.f_scratch[(v_p0 + 5u)] = ((uint8_t)((1u & (v_chunk_bits >> 26u)))); + self->private_data.f_scratch[(v_p0 + 6u)] = ((uint8_t)((1u & (v_chunk_bits >> 25u)))); + self->private_data.f_scratch[(v_p0 + 7u)] = ((uint8_t)((1u & (v_chunk_bits >> 24u)))); + self->private_data.f_scratch[(v_p0 + 8u)] = ((uint8_t)((1u & (v_chunk_bits >> 23u)))); + self->private_data.f_scratch[(v_p0 + 9u)] = ((uint8_t)((1u & (v_chunk_bits >> 22u)))); + self->private_data.f_scratch[(v_p0 + 10u)] = ((uint8_t)((1u & (v_chunk_bits >> 21u)))); + self->private_data.f_scratch[(v_p0 + 11u)] = ((uint8_t)((1u & (v_chunk_bits >> 20u)))); + self->private_data.f_scratch[(v_p0 + 12u)] = ((uint8_t)((1u & (v_chunk_bits >> 19u)))); + self->private_data.f_scratch[(v_p0 + 13u)] = ((uint8_t)((1u & (v_chunk_bits >> 18u)))); + self->private_data.f_scratch[(v_p0 + 14u)] = ((uint8_t)((1u & (v_chunk_bits >> 17u)))); + self->private_data.f_scratch[(v_p0 + 15u)] = ((uint8_t)((1u & (v_chunk_bits >> 16u)))); + self->private_data.f_scratch[(v_p0 + 16u)] = ((uint8_t)((1u & (v_chunk_bits >> 15u)))); + self->private_data.f_scratch[(v_p0 + 17u)] = ((uint8_t)((1u & (v_chunk_bits >> 14u)))); + self->private_data.f_scratch[(v_p0 + 18u)] = ((uint8_t)((1u & (v_chunk_bits >> 13u)))); + self->private_data.f_scratch[(v_p0 + 19u)] = ((uint8_t)((1u & (v_chunk_bits >> 12u)))); + self->private_data.f_scratch[(v_p0 + 20u)] = ((uint8_t)((1u & (v_chunk_bits >> 11u)))); + self->private_data.f_scratch[(v_p0 + 21u)] = ((uint8_t)((1u & (v_chunk_bits >> 10u)))); + self->private_data.f_scratch[(v_p0 + 22u)] = ((uint8_t)((1u & (v_chunk_bits >> 9u)))); + self->private_data.f_scratch[(v_p0 + 23u)] = ((uint8_t)((1u & (v_chunk_bits >> 8u)))); + self->private_data.f_scratch[(v_p0 + 24u)] = ((uint8_t)((1u & (v_chunk_bits >> 7u)))); + self->private_data.f_scratch[(v_p0 + 25u)] = ((uint8_t)((1u & (v_chunk_bits >> 6u)))); + self->private_data.f_scratch[(v_p0 + 26u)] = ((uint8_t)((1u & (v_chunk_bits >> 5u)))); + self->private_data.f_scratch[(v_p0 + 27u)] = ((uint8_t)((1u & (v_chunk_bits >> 4u)))); + self->private_data.f_scratch[(v_p0 + 28u)] = ((uint8_t)((1u & (v_chunk_bits >> 3u)))); + self->private_data.f_scratch[(v_p0 + 29u)] = ((uint8_t)((1u & (v_chunk_bits >> 2u)))); + self->private_data.f_scratch[(v_p0 + 30u)] = ((uint8_t)((1u & (v_chunk_bits >> 1u)))); + self->private_data.f_scratch[(v_p0 + 31u)] = ((uint8_t)((1u & (v_chunk_bits >> 0u)))); + v_p0 = ((v_p0 & 511u) + 32u); + v_chunk_count -= 1u; + } + } else if (self->private_impl.f_bits_per_pixel == 2u) { + v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 15u) / 16u); + v_chunk_count = wuffs_base__u32__min(v_chunk_count, 32u); + while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 4u)) { + v_chunk_bits = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4u; + self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((3u & (v_chunk_bits >> 30u)))); + self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((3u & (v_chunk_bits >> 28u)))); + self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((3u & (v_chunk_bits >> 26u)))); + self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((3u & (v_chunk_bits >> 24u)))); + self->private_data.f_scratch[(v_p0 + 4u)] = ((uint8_t)((3u & (v_chunk_bits >> 22u)))); + self->private_data.f_scratch[(v_p0 + 5u)] = ((uint8_t)((3u & (v_chunk_bits >> 20u)))); + self->private_data.f_scratch[(v_p0 + 6u)] = ((uint8_t)((3u & (v_chunk_bits >> 18u)))); + self->private_data.f_scratch[(v_p0 + 7u)] = ((uint8_t)((3u & (v_chunk_bits >> 16u)))); + self->private_data.f_scratch[(v_p0 + 8u)] = ((uint8_t)((3u & (v_chunk_bits >> 14u)))); + self->private_data.f_scratch[(v_p0 + 9u)] = ((uint8_t)((3u & (v_chunk_bits >> 12u)))); + self->private_data.f_scratch[(v_p0 + 10u)] = ((uint8_t)((3u & (v_chunk_bits >> 10u)))); + self->private_data.f_scratch[(v_p0 + 11u)] = ((uint8_t)((3u & (v_chunk_bits >> 8u)))); + self->private_data.f_scratch[(v_p0 + 12u)] = ((uint8_t)((3u & (v_chunk_bits >> 6u)))); + self->private_data.f_scratch[(v_p0 + 13u)] = ((uint8_t)((3u & (v_chunk_bits >> 4u)))); + self->private_data.f_scratch[(v_p0 + 14u)] = ((uint8_t)((3u & (v_chunk_bits >> 2u)))); + self->private_data.f_scratch[(v_p0 + 15u)] = ((uint8_t)((3u & (v_chunk_bits >> 0u)))); + v_p0 = ((v_p0 & 511u) + 16u); + v_chunk_count -= 1u; + } } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + v_chunk_count = ((wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x) + 7u) / 8u); + v_chunk_count = wuffs_base__u32__min(v_chunk_count, 64u); + while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 4u)) { + v_chunk_bits = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4u; + self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((15u & (v_chunk_bits >> 28u)))); + self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((15u & (v_chunk_bits >> 24u)))); + self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((15u & (v_chunk_bits >> 20u)))); + self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((15u & (v_chunk_bits >> 16u)))); + self->private_data.f_scratch[(v_p0 + 4u)] = ((uint8_t)((15u & (v_chunk_bits >> 12u)))); + self->private_data.f_scratch[(v_p0 + 5u)] = ((uint8_t)((15u & (v_chunk_bits >> 8u)))); + self->private_data.f_scratch[(v_p0 + 6u)] = ((uint8_t)((15u & (v_chunk_bits >> 4u)))); + self->private_data.f_scratch[(v_p0 + 7u)] = ((uint8_t)((15u & (v_chunk_bits >> 0u)))); + v_p0 = ((v_p0 & 511u) + 8u); + v_chunk_count -= 1u; + } + } + v_p0 = wuffs_base__u32__min(v_p0, wuffs_base__u32__sat_sub(self->private_impl.f_width, self->private_impl.f_dst_x)); + v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, v_p0)); + if (v_n == 0u) { + status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); + goto ok; } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); } + status = wuffs_base__make_status(NULL); + goto ok; - self->private_impl.choosy_up = &wuffs_crc32__ieee_hasher__up__choosy_default; + ok: + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__hasher_u32.vtable_name = - wuffs_base__hasher_u32__vtable_name; - self->private_impl.vtable_for__wuffs_base__hasher_u32.function_pointers = - (const void*)(&wuffs_crc32__ieee_hasher__func_ptrs_for__wuffs_base__hasher_u32); - return wuffs_base__make_status(NULL); + return status; } -wuffs_crc32__ieee_hasher* -wuffs_crc32__ieee_hasher__alloc(void) { - wuffs_crc32__ieee_hasher* x = - (wuffs_crc32__ieee_hasher*)(calloc(sizeof(wuffs_crc32__ieee_hasher), 1)); - if (!x) { - return NULL; +// -------- func bmp.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_bmp__decoder__frame_dirty_rect( + const wuffs_bmp__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); } - if (wuffs_crc32__ieee_hasher__initialize( - x, sizeof(wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); } - return x; -} -size_t -sizeof__wuffs_crc32__ieee_hasher(void) { - return sizeof(wuffs_crc32__ieee_hasher); + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); } -// ---------------- Function Implementations - -// -------- func crc32.ieee_hasher.get_quirk +// -------- func bmp.decoder.num_animation_loops WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_crc32__ieee_hasher__get_quirk( - const wuffs_crc32__ieee_hasher* self, - uint32_t a_key) { +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_bmp__decoder__num_animation_loops( + const wuffs_bmp__decoder* self) { if (!self) { return 0; } @@ -33524,709 +33654,531 @@ wuffs_crc32__ieee_hasher__get_quirk( return 0u; } -// -------- func crc32.ieee_hasher.set_quirk +// -------- func bmp.decoder.num_decoded_frame_configs WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_crc32__ieee_hasher__set_quirk( - wuffs_crc32__ieee_hasher* self, - uint32_t a_key, - uint64_t a_value) { +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_bmp__decoder__num_decoded_frame_configs( + const wuffs_bmp__decoder* self) { if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); + return 0; } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; } -// -------- func crc32.ieee_hasher.update +// -------- func bmp.decoder.num_decoded_frames WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__update( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x) { +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_bmp__decoder__num_decoded_frames( + const wuffs_bmp__decoder* self) { if (!self) { - return wuffs_base__make_empty_struct(); + return 0; } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - if (self->private_impl.f_state == 0u) { - self->private_impl.choosy_up = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) - wuffs_base__cpu_arch__have_arm_crc32() ? &wuffs_crc32__ieee_hasher__up_arm_crc32 : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) - wuffs_base__cpu_arch__have_x86_avx2() ? &wuffs_crc32__ieee_hasher__up_x86_avx2 : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_crc32__ieee_hasher__up_x86_sse42 : -#endif - self->private_impl.choosy_up); + if (self->private_impl.f_call_sequence > 64u) { + return 1u; } - wuffs_crc32__ieee_hasher__up(self, a_x); - return wuffs_base__make_empty_struct(); + return 0u; } -// -------- func crc32.ieee_hasher.update_u32 +// -------- func bmp.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_crc32__ieee_hasher__update_u32( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_bmp__decoder__restart_frame( + wuffs_bmp__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { if (!self) { - return 0; + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - wuffs_crc32__ieee_hasher__update(self, a_x); - return self->private_impl.f_state; + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if (a_index != 0u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + self->private_impl.f_frame_config_io_position = a_io_position; + return wuffs_base__make_status(NULL); } -// -------- func crc32.ieee_hasher.up +// -------- func bmp.decoder.set_report_metadata WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x) { - return (*self->private_impl.choosy_up)(self, a_x); +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_bmp__decoder__set_report_metadata( + wuffs_bmp__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); } +// -------- func bmp.decoder.tell_me_more + WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up__choosy_default( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x) { - uint32_t v_s = 0; - wuffs_base__slice_u8 v_p = {0}; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_bmp__decoder__tell_me_more( + wuffs_bmp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - v_s = (4294967295u ^ self->private_impl.f_state); - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 16; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32); - while (v_p.ptr < i_end0_p) { - v_s ^= ((((uint32_t)(v_p.ptr[0u])) << 0u) | - (((uint32_t)(v_p.ptr[1u])) << 8u) | - (((uint32_t)(v_p.ptr[2u])) << 16u) | - (((uint32_t)(v_p.ptr[3u])) << 24u)); - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][v_p.ptr[15u]] ^ - WUFFS_CRC32__IEEE_TABLE[1u][v_p.ptr[14u]] ^ - WUFFS_CRC32__IEEE_TABLE[2u][v_p.ptr[13u]] ^ - WUFFS_CRC32__IEEE_TABLE[3u][v_p.ptr[12u]] ^ - WUFFS_CRC32__IEEE_TABLE[4u][v_p.ptr[11u]] ^ - WUFFS_CRC32__IEEE_TABLE[5u][v_p.ptr[10u]] ^ - WUFFS_CRC32__IEEE_TABLE[6u][v_p.ptr[9u]] ^ - WUFFS_CRC32__IEEE_TABLE[7u][v_p.ptr[8u]] ^ - WUFFS_CRC32__IEEE_TABLE[8u][v_p.ptr[7u]] ^ - WUFFS_CRC32__IEEE_TABLE[9u][v_p.ptr[6u]] ^ - WUFFS_CRC32__IEEE_TABLE[10u][v_p.ptr[5u]] ^ - WUFFS_CRC32__IEEE_TABLE[11u][v_p.ptr[4u]] ^ - WUFFS_CRC32__IEEE_TABLE[12u][(255u & (v_s >> 24u))] ^ - WUFFS_CRC32__IEEE_TABLE[13u][(255u & (v_s >> 16u))] ^ - WUFFS_CRC32__IEEE_TABLE[14u][(255u & (v_s >> 8u))] ^ - WUFFS_CRC32__IEEE_TABLE[15u][(255u & (v_s >> 0u))]); - v_p.ptr += 16; - v_s ^= ((((uint32_t)(v_p.ptr[0u])) << 0u) | - (((uint32_t)(v_p.ptr[1u])) << 8u) | - (((uint32_t)(v_p.ptr[2u])) << 16u) | - (((uint32_t)(v_p.ptr[3u])) << 24u)); - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][v_p.ptr[15u]] ^ - WUFFS_CRC32__IEEE_TABLE[1u][v_p.ptr[14u]] ^ - WUFFS_CRC32__IEEE_TABLE[2u][v_p.ptr[13u]] ^ - WUFFS_CRC32__IEEE_TABLE[3u][v_p.ptr[12u]] ^ - WUFFS_CRC32__IEEE_TABLE[4u][v_p.ptr[11u]] ^ - WUFFS_CRC32__IEEE_TABLE[5u][v_p.ptr[10u]] ^ - WUFFS_CRC32__IEEE_TABLE[6u][v_p.ptr[9u]] ^ - WUFFS_CRC32__IEEE_TABLE[7u][v_p.ptr[8u]] ^ - WUFFS_CRC32__IEEE_TABLE[8u][v_p.ptr[7u]] ^ - WUFFS_CRC32__IEEE_TABLE[9u][v_p.ptr[6u]] ^ - WUFFS_CRC32__IEEE_TABLE[10u][v_p.ptr[5u]] ^ - WUFFS_CRC32__IEEE_TABLE[11u][v_p.ptr[4u]] ^ - WUFFS_CRC32__IEEE_TABLE[12u][(255u & (v_s >> 24u))] ^ - WUFFS_CRC32__IEEE_TABLE[13u][(255u & (v_s >> 16u))] ^ - WUFFS_CRC32__IEEE_TABLE[14u][(255u & (v_s >> 8u))] ^ - WUFFS_CRC32__IEEE_TABLE[15u][(255u & (v_s >> 0u))]); - v_p.ptr += 16; - } - v_p.len = 16; - uint8_t* i_end1_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 16) * 16); - while (v_p.ptr < i_end1_p) { - v_s ^= ((((uint32_t)(v_p.ptr[0u])) << 0u) | - (((uint32_t)(v_p.ptr[1u])) << 8u) | - (((uint32_t)(v_p.ptr[2u])) << 16u) | - (((uint32_t)(v_p.ptr[3u])) << 24u)); - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][v_p.ptr[15u]] ^ - WUFFS_CRC32__IEEE_TABLE[1u][v_p.ptr[14u]] ^ - WUFFS_CRC32__IEEE_TABLE[2u][v_p.ptr[13u]] ^ - WUFFS_CRC32__IEEE_TABLE[3u][v_p.ptr[12u]] ^ - WUFFS_CRC32__IEEE_TABLE[4u][v_p.ptr[11u]] ^ - WUFFS_CRC32__IEEE_TABLE[5u][v_p.ptr[10u]] ^ - WUFFS_CRC32__IEEE_TABLE[6u][v_p.ptr[9u]] ^ - WUFFS_CRC32__IEEE_TABLE[7u][v_p.ptr[8u]] ^ - WUFFS_CRC32__IEEE_TABLE[8u][v_p.ptr[7u]] ^ - WUFFS_CRC32__IEEE_TABLE[9u][v_p.ptr[6u]] ^ - WUFFS_CRC32__IEEE_TABLE[10u][v_p.ptr[5u]] ^ - WUFFS_CRC32__IEEE_TABLE[11u][v_p.ptr[4u]] ^ - WUFFS_CRC32__IEEE_TABLE[12u][(255u & (v_s >> 24u))] ^ - WUFFS_CRC32__IEEE_TABLE[13u][(255u & (v_s >> 16u))] ^ - WUFFS_CRC32__IEEE_TABLE[14u][(255u & (v_s >> 8u))] ^ - WUFFS_CRC32__IEEE_TABLE[15u][(255u & (v_s >> 0u))]); - v_p.ptr += 16; - } - v_p.len = 1; - uint8_t* i_end2_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end2_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][(((uint8_t)(v_s)) ^ v_p.ptr[0u])] ^ (v_s >> 8u)); - v_p.ptr += 1; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_tell_me_more; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_bmp__decoder__do_tell_me_more(self, a_dst, a_minfo, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_bmp__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - v_p.len = 0; + + ok: + self->private_impl.p_tell_me_more = 0; + goto exit; } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; } -// -------- func crc32.ieee_hasher.checksum_u32 +// -------- func bmp.decoder.do_tell_me_more WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_crc32__ieee_hasher__checksum_u32( - const wuffs_crc32__ieee_hasher* self) { - if (!self) { - return 0; +static wuffs_base__status +wuffs_bmp__decoder__do_tell_me_more( + wuffs_bmp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + if (self->private_impl.f_io_redirect_fourcc <= 1u) { + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + 1u, + self->private_impl.f_io_redirect_fourcc, + 0u, + self->private_impl.f_io_redirect_pos, + 18446744073709551615u); } + self->private_impl.f_io_redirect_fourcc = 1u; - return self->private_impl.f_state; + goto ok; + ok: + goto exit; + exit: + return status; } -// ‼ WUFFS MULTI-FILE SECTION +arm_crc32 -// -------- func crc32.ieee_hasher.up_arm_crc32 +// -------- func bmp.decoder.workbuf_len -#if defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up_arm_crc32( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x) { - wuffs_base__slice_u8 v_p = {0}; - uint32_t v_s = 0; - - v_s = (4294967295u ^ self->private_impl.f_state); - while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { - v_s = __crc32b(v_s, a_x.ptr[0u]); - a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_bmp__decoder__workbuf_len( + const wuffs_bmp__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); } - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 8; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 128) * 128); - while (v_p.ptr < i_end0_p) { - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - } - v_p.len = 8; - uint8_t* i_end1_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8); - while (v_p.ptr < i_end1_p) { - v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); - v_p.ptr += 8; - } - v_p.len = 1; - uint8_t* i_end2_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end2_p) { - v_s = __crc32b(v_s, v_p.ptr[0u]); - v_p.ptr += 1; - } - v_p.len = 0; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); } -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) -// ‼ WUFFS MULTI-FILE SECTION -arm_crc32 -// ‼ WUFFS MULTI-FILE SECTION +x86_avx2 -// -------- func crc32.ieee_hasher.up_x86_avx2 +// -------- func bmp.decoder.read_palette -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up_x86_avx2( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x) { - uint32_t v_s = 0; - wuffs_base__slice_u8 v_p = {0}; - __m128i v_k = {0}; - __m128i v_x0 = {0}; - __m128i v_x1 = {0}; - __m128i v_x2 = {0}; - __m128i v_x3 = {0}; - __m128i v_y0 = {0}; - __m128i v_y1 = {0}; - __m128i v_y2 = {0}; - __m128i v_y3 = {0}; - uint64_t v_tail_index = 0; +static wuffs_base__status +wuffs_bmp__decoder__read_palette( + wuffs_bmp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - v_s = (4294967295u ^ self->private_impl.f_state); - while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][(((uint8_t)(v_s)) ^ a_x.ptr[0u])] ^ (v_s >> 8u)); - a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); + uint32_t v_i = 0; + uint32_t v_argb = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (((uint64_t)(a_x.len)) < 64u) { - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][(((uint8_t)(v_s)) ^ v_p.ptr[0u])] ^ (v_s >> 8u)); - v_p.ptr += 1; + + uint32_t coro_susp_point = self->private_impl.p_read_palette; + if (coro_susp_point) { + v_i = self->private_data.s_read_palette.v_i; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_bitmap_info_len == 12u) { + while ((v_i < 256u) && (self->private_impl.f_padding >= 3u)) { + self->private_impl.f_padding -= 3u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { + t_0 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + iop_a_src += 3; + } else { + self->private_data.s_read_palette.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_read_palette.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 16) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_argb = t_0; + } + v_argb |= 4278190080u; + self->private_data.f_src_palette[((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); + self->private_data.f_src_palette[((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); + self->private_data.f_src_palette[((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); + self->private_data.f_src_palette[((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); + v_i += 1u; + } + } else { + while ((v_i < 256u) && (self->private_impl.f_padding >= 4u)) { + self->private_impl.f_padding -= 4u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_read_palette.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_read_palette.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_argb = t_1; + } + v_argb |= 4278190080u; + self->private_data.f_src_palette[((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); + self->private_data.f_src_palette[((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); + self->private_data.f_src_palette[((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); + self->private_data.f_src_palette[((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); + v_i += 1u; } - v_p.len = 0; } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); - } - v_x0 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)); - v_x1 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); - v_x2 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); - v_x3 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); - v_x0 = _mm_xor_si128(v_x0, _mm_cvtsi32_si128((int32_t)(v_s))); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K1K2)); - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, 64u); - v_p.ptr = i_slice_p.ptr; - v_p.len = 64; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 64) * 64); - while (v_p.ptr < i_end0_p) { - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_y1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(0u)); - v_y2 = _mm_clmulepi64_si128(v_x2, v_k, (int32_t)(0u)); - v_y3 = _mm_clmulepi64_si128(v_x3, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(17u)); - v_x2 = _mm_clmulepi64_si128(v_x2, v_k, (int32_t)(17u)); - v_x3 = _mm_clmulepi64_si128(v_x3, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(_mm_xor_si128(v_x0, v_y0), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 0u))); - v_x1 = _mm_xor_si128(_mm_xor_si128(v_x1, v_y1), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 16u))); - v_x2 = _mm_xor_si128(_mm_xor_si128(v_x2, v_y2), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 32u))); - v_x3 = _mm_xor_si128(_mm_xor_si128(v_x3, v_y3), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 48u))); - v_p.ptr += 64; + while (v_i < 256u) { + self->private_data.f_src_palette[((4u * v_i) + 0u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 1u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 2u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 3u)] = 255u; + v_i += 1u; } - v_p.len = 0; + + goto ok; + ok: + self->private_impl.p_read_palette = 0; + goto exit; } - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K3K4)); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x2); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x3); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_x1 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(16u)); - v_x2 = _mm_set_epi32((int32_t)(0u), (int32_t)(4294967295u), (int32_t)(0u), (int32_t)(4294967295u)); - v_x0 = _mm_srli_si128(v_x0, (int32_t)(8u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K5ZZ)); - v_x1 = _mm_srli_si128(v_x0, (int32_t)(4u)); - v_x0 = _mm_and_si128(v_x0, v_x2); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_PXMU)); - v_x1 = _mm_and_si128(v_x0, v_x2); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(16u)); - v_x1 = _mm_and_si128(v_x1, v_x2); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(0u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_s = ((uint32_t)(_mm_extract_epi32(v_x0, (int32_t)(1u)))); - v_tail_index = (((uint64_t)(a_x.len)) & 18446744073709551552u); - if (v_tail_index < ((uint64_t)(a_x.len))) { - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][(((uint8_t)(v_s)) ^ v_p.ptr[0u])] ^ (v_s >> 8u)); - v_p.ptr += 1; - } - v_p.len = 0; - } + + goto suspend; + suspend: + self->private_impl.p_read_palette = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_read_palette.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); + + return status; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) -// ‼ WUFFS MULTI-FILE SECTION -x86_avx2 -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func crc32.ieee_hasher.up_x86_sse42 +// -------- func bmp.decoder.process_masks -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up_x86_sse42( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x) { - uint32_t v_s = 0; - wuffs_base__slice_u8 v_p = {0}; - __m128i v_k = {0}; - __m128i v_x0 = {0}; - __m128i v_x1 = {0}; - __m128i v_x2 = {0}; - __m128i v_x3 = {0}; - __m128i v_y0 = {0}; - __m128i v_y1 = {0}; - __m128i v_y2 = {0}; - __m128i v_y3 = {0}; - uint64_t v_tail_index = 0; +static wuffs_base__status +wuffs_bmp__decoder__process_masks( + wuffs_bmp__decoder* self) { + wuffs_base__status status = wuffs_base__make_status(NULL); - v_s = (4294967295u ^ self->private_impl.f_state); - while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][(((uint8_t)(v_s)) ^ a_x.ptr[0u])] ^ (v_s >> 8u)); - a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); - } - if (((uint64_t)(a_x.len)) < 64u) { - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][(((uint8_t)(v_s)) ^ v_p.ptr[0u])] ^ (v_s >> 8u)); - v_p.ptr += 1; + uint32_t v_i = 0; + uint32_t v_mask = 0; + uint32_t v_n = 0; + + while (v_i < 4u) { + v_mask = self->private_impl.f_channel_masks[v_i]; + if (v_mask != 0u) { + v_n = 0u; + while ((v_mask & 1u) == 0u) { + v_n += 1u; + v_mask >>= 1u; } - v_p.len = 0; - } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); - } - v_x0 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)); - v_x1 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); - v_x2 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); - v_x3 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); - v_x0 = _mm_xor_si128(v_x0, _mm_cvtsi32_si128((int32_t)(v_s))); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K1K2)); - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, 64u); - v_p.ptr = i_slice_p.ptr; - v_p.len = 64; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 64) * 64); - while (v_p.ptr < i_end0_p) { - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_y1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(0u)); - v_y2 = _mm_clmulepi64_si128(v_x2, v_k, (int32_t)(0u)); - v_y3 = _mm_clmulepi64_si128(v_x3, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(17u)); - v_x2 = _mm_clmulepi64_si128(v_x2, v_k, (int32_t)(17u)); - v_x3 = _mm_clmulepi64_si128(v_x3, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(_mm_xor_si128(v_x0, v_y0), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 0u))); - v_x1 = _mm_xor_si128(_mm_xor_si128(v_x1, v_y1), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 16u))); - v_x2 = _mm_xor_si128(_mm_xor_si128(v_x2, v_y2), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 32u))); - v_x3 = _mm_xor_si128(_mm_xor_si128(v_x3, v_y3), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 48u))); - v_p.ptr += 64; - } - v_p.len = 0; - } - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K3K4)); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x2); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x3); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_x1 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(16u)); - v_x2 = _mm_set_epi32((int32_t)(0u), (int32_t)(4294967295u), (int32_t)(0u), (int32_t)(4294967295u)); - v_x0 = _mm_srli_si128(v_x0, (int32_t)(8u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K5ZZ)); - v_x1 = _mm_srli_si128(v_x0, (int32_t)(4u)); - v_x0 = _mm_and_si128(v_x0, v_x2); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_PXMU)); - v_x1 = _mm_and_si128(v_x0, v_x2); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(16u)); - v_x1 = _mm_and_si128(v_x1, v_x2); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(0u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_s = ((uint32_t)(_mm_extract_epi32(v_x0, (int32_t)(1u)))); - v_tail_index = (((uint64_t)(a_x.len)) & 18446744073709551552u); - if (v_tail_index < ((uint64_t)(a_x.len))) { - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][(((uint8_t)(v_s)) ^ v_p.ptr[0u])] ^ (v_s >> 8u)); - v_p.ptr += 1; + self->private_impl.f_channel_shifts[v_i] = ((uint8_t)((v_n & 31u))); + v_n = 0u; + while ((v_mask & 1u) == 1u) { + v_n += 1u; + v_mask >>= 1u; } - v_p.len = 0; + if ((v_mask != 0u) || (v_n > 32u)) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; + } + self->private_impl.f_channel_num_bits[v_i] = ((uint8_t)(v_n)); + } else if (v_i != 3u) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_header); + goto exit; } + v_i += 1u; } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); + + goto ok; + ok: + goto exit; + exit: + return status; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC32) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BMP) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BZIP2) // ---------------- Status Codes Implementations -const char wuffs_deflate__error__bad_huffman_code_over_subscribed[] = "#deflate: bad Huffman code (over-subscribed)"; -const char wuffs_deflate__error__bad_huffman_code_under_subscribed[] = "#deflate: bad Huffman code (under-subscribed)"; -const char wuffs_deflate__error__bad_huffman_code_length_count[] = "#deflate: bad Huffman code length count"; -const char wuffs_deflate__error__bad_huffman_code_length_repetition[] = "#deflate: bad Huffman code length repetition"; -const char wuffs_deflate__error__bad_huffman_code[] = "#deflate: bad Huffman code"; -const char wuffs_deflate__error__bad_huffman_minimum_code_length[] = "#deflate: bad Huffman minimum code length"; -const char wuffs_deflate__error__bad_block[] = "#deflate: bad block"; -const char wuffs_deflate__error__bad_distance[] = "#deflate: bad distance"; -const char wuffs_deflate__error__bad_distance_code_count[] = "#deflate: bad distance code count"; -const char wuffs_deflate__error__bad_literal_length_code_count[] = "#deflate: bad literal/length code count"; -const char wuffs_deflate__error__inconsistent_stored_block_length[] = "#deflate: inconsistent stored block length"; -const char wuffs_deflate__error__missing_end_of_block_code[] = "#deflate: missing end-of-block code"; -const char wuffs_deflate__error__no_huffman_codes[] = "#deflate: no Huffman codes"; -const char wuffs_deflate__error__truncated_input[] = "#deflate: truncated input"; -const char wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state[] = "#deflate: internal error: inconsistent Huffman decoder state"; -const char wuffs_deflate__error__internal_error_inconsistent_i_o[] = "#deflate: internal error: inconsistent I/O"; -const char wuffs_deflate__error__internal_error_inconsistent_distance[] = "#deflate: internal error: inconsistent distance"; -const char wuffs_deflate__error__internal_error_inconsistent_n_bits[] = "#deflate: internal error: inconsistent n_bits"; +const char wuffs_bzip2__error__bad_huffman_code_over_subscribed[] = "#bzip2: bad Huffman code (over-subscribed)"; +const char wuffs_bzip2__error__bad_huffman_code_under_subscribed[] = "#bzip2: bad Huffman code (under-subscribed)"; +const char wuffs_bzip2__error__bad_block_header[] = "#bzip2: bad block header"; +const char wuffs_bzip2__error__bad_block_length[] = "#bzip2: bad block length"; +const char wuffs_bzip2__error__bad_checksum[] = "#bzip2: bad checksum"; +const char wuffs_bzip2__error__bad_header[] = "#bzip2: bad header"; +const char wuffs_bzip2__error__bad_number_of_sections[] = "#bzip2: bad number of sections"; +const char wuffs_bzip2__error__truncated_input[] = "#bzip2: truncated input"; +const char wuffs_bzip2__error__unsupported_block_randomization[] = "#bzip2: unsupported block randomization"; +const char wuffs_bzip2__error__internal_error_inconsistent_huffman_decoder_state[] = "#bzip2: internal error: inconsistent Huffman decoder state"; // ---------------- Private Consts static const uint8_t -WUFFS_DEFLATE__CODE_ORDER[19] WUFFS_BASE__POTENTIALLY_UNUSED = { - 16, 17, 18, 0, 8, 7, 9, 6, - 10, 5, 11, 4, 12, 3, 13, 2, - 14, 1, 15, -}; - -static const uint8_t -WUFFS_DEFLATE__REVERSE8[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 128, 64, 192, 32, 160, 96, 224, - 16, 144, 80, 208, 48, 176, 112, 240, - 8, 136, 72, 200, 40, 168, 104, 232, - 24, 152, 88, 216, 56, 184, 120, 248, - 4, 132, 68, 196, 36, 164, 100, 228, - 20, 148, 84, 212, 52, 180, 116, 244, - 12, 140, 76, 204, 44, 172, 108, 236, - 28, 156, 92, 220, 60, 188, 124, 252, - 2, 130, 66, 194, 34, 162, 98, 226, - 18, 146, 82, 210, 50, 178, 114, 242, - 10, 138, 74, 202, 42, 170, 106, 234, - 26, 154, 90, 218, 58, 186, 122, 250, - 6, 134, 70, 198, 38, 166, 102, 230, - 22, 150, 86, 214, 54, 182, 118, 246, - 14, 142, 78, 206, 46, 174, 110, 238, - 30, 158, 94, 222, 62, 190, 126, 254, - 1, 129, 65, 193, 33, 161, 97, 225, - 17, 145, 81, 209, 49, 177, 113, 241, - 9, 137, 73, 201, 41, 169, 105, 233, - 25, 153, 89, 217, 57, 185, 121, 249, - 5, 133, 69, 197, 37, 165, 101, 229, - 21, 149, 85, 213, 53, 181, 117, 245, - 13, 141, 77, 205, 45, 173, 109, 237, - 29, 157, 93, 221, 61, 189, 125, 253, - 3, 131, 67, 195, 35, 163, 99, 227, - 19, 147, 83, 211, 51, 179, 115, 243, - 11, 139, 75, 203, 43, 171, 107, 235, - 27, 155, 91, 219, 59, 187, 123, 251, - 7, 135, 71, 199, 39, 167, 103, 231, - 23, 151, 87, 215, 55, 183, 119, 247, - 15, 143, 79, 207, 47, 175, 111, 239, - 31, 159, 95, 223, 63, 191, 127, 255, -}; - -static const uint32_t -WUFFS_DEFLATE__LCODE_MAGIC_NUMBERS[32] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1073741824, 1073742080, 1073742336, 1073742592, 1073742848, 1073743104, 1073743360, 1073743616, - 1073743888, 1073744400, 1073744912, 1073745424, 1073745952, 1073746976, 1073748000, 1073749024, - 1073750064, 1073752112, 1073754160, 1073756208, 1073758272, 1073762368, 1073766464, 1073770560, - 1073774672, 1073782864, 1073791056, 1073799248, 1073807104, 134217728, 134217728, 134217728, +WUFFS_BZIP2__CLAMP_TO_5[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 2u, 3u, 4u, 5u, 5u, 5u, }; static const uint32_t -WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[32] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1073741824, 1073742080, 1073742336, 1073742592, 1073742864, 1073743376, 1073743904, 1073744928, - 1073745968, 1073748016, 1073750080, 1073754176, 1073758288, 1073766480, 1073774688, 1073791072, - 1073807472, 1073840240, 1073873024, 1073938560, 1074004112, 1074135184, 1074266272, 1074528416, - 1074790576, 1075314864, 1075839168, 1076887744, 1077936336, 1080033488, 134217728, 134217728, +WUFFS_BZIP2__REV_CRC32_TABLE[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 79764919u, 159529838u, 222504665u, 319059676u, 398814059u, 445009330u, 507990021u, + 638119352u, 583659535u, 797628118u, 726387553u, 890018660u, 835552979u, 1015980042u, 944750013u, + 1276238704u, 1221641927u, 1167319070u, 1095957929u, 1595256236u, 1540665371u, 1452775106u, 1381403509u, + 1780037320u, 1859660671u, 1671105958u, 1733955601u, 2031960084u, 2111593891u, 1889500026u, 1952343757u, + 2552477408u, 2632100695u, 2443283854u, 2506133561u, 2334638140u, 2414271883u, 2191915858u, 2254759653u, + 3190512472u, 3135915759u, 3081330742u, 3009969537u, 2905550212u, 2850959411u, 2762807018u, 2691435357u, + 3560074640u, 3505614887u, 3719321342u, 3648080713u, 3342211916u, 3287746299u, 3467911202u, 3396681109u, + 4063920168u, 4143685023u, 4223187782u, 4286162673u, 3779000052u, 3858754371u, 3904687514u, 3967668269u, + 881225847u, 809987520u, 1023691545u, 969234094u, 662832811u, 591600412u, 771767749u, 717299826u, + 311336399u, 374308984u, 453813921u, 533576470u, 25881363u, 88864420u, 134795389u, 214552010u, + 2023205639u, 2086057648u, 1897238633u, 1976864222u, 1804852699u, 1867694188u, 1645340341u, 1724971778u, + 1587496639u, 1516133128u, 1461550545u, 1406951526u, 1302016099u, 1230646740u, 1142491917u, 1087903418u, + 2896545431u, 2825181984u, 2770861561u, 2716262478u, 3215044683u, 3143675388u, 3055782693u, 3001194130u, + 2326604591u, 2389456536u, 2200899649u, 2280525302u, 2578013683u, 2640855108u, 2418763421u, 2498394922u, + 3769900519u, 3832873040u, 3912640137u, 3992402750u, 4088425275u, 4151408268u, 4197601365u, 4277358050u, + 3334271071u, 3263032808u, 3476998961u, 3422541446u, 3585640067u, 3514407732u, 3694837229u, 3640369242u, + 1762451694u, 1842216281u, 1619975040u, 1682949687u, 2047383090u, 2127137669u, 1938468188u, 2001449195u, + 1325665622u, 1271206113u, 1183200824u, 1111960463u, 1543535498u, 1489069629u, 1434599652u, 1363369299u, + 622672798u, 568075817u, 748617968u, 677256519u, 907627842u, 853037301u, 1067152940u, 995781531u, + 51762726u, 131386257u, 177728840u, 240578815u, 269590778u, 349224269u, 429104020u, 491947555u, + 4046411278u, 4126034873u, 4172115296u, 4234965207u, 3794477266u, 3874110821u, 3953728444u, 4016571915u, + 3609705398u, 3555108353u, 3735388376u, 3664026991u, 3290680682u, 3236090077u, 3449943556u, 3378572211u, + 3174993278u, 3120533705u, 3032266256u, 2961025959u, 2923101090u, 2868635157u, 2813903052u, 2742672763u, + 2604032198u, 2683796849u, 2461293480u, 2524268063u, 2284983834u, 2364738477u, 2175806836u, 2238787779u, + 1569362073u, 1498123566u, 1409854455u, 1355396672u, 1317987909u, 1246755826u, 1192025387u, 1137557660u, + 2072149281u, 2135122070u, 1912620623u, 1992383480u, 1753615357u, 1816598090u, 1627664531u, 1707420964u, + 295390185u, 358241886u, 404320391u, 483945776u, 43990325u, 106832002u, 186451547u, 266083308u, + 932423249u, 861060070u, 1041341759u, 986742920u, 613929101u, 542559546u, 756411363u, 701822548u, + 3316196985u, 3244833742u, 3425377559u, 3370778784u, 3601682597u, 3530312978u, 3744426955u, 3689838204u, + 3819031489u, 3881883254u, 3928223919u, 4007849240u, 4037393693u, 4100235434u, 4180117107u, 4259748804u, + 2310601993u, 2373574846u, 2151335527u, 2231098320u, 2596047829u, 2659030626u, 2470359227u, 2550115596u, + 2947551409u, 2876312838u, 2788305887u, 2733848168u, 3165939309u, 3094707162u, 3040238851u, 2985771188u, }; -#define WUFFS_DEFLATE__HUFFS_TABLE_SIZE 1024 - -#define WUFFS_DEFLATE__HUFFS_TABLE_MASK 1023 - // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__do_transform_io( - wuffs_deflate__decoder* self, +wuffs_bzip2__decoder__do_transform_io( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_blocks( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_bzip2__decoder__prepare_block( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_uncompressed( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_bzip2__decoder__read_code_lengths( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__init_fixed_huffman( - wuffs_deflate__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__init_dynamic_huffman( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_src); +wuffs_bzip2__decoder__build_huffman_tree( + wuffs_bzip2__decoder* self, + uint32_t a_which); WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__init_huff( - wuffs_deflate__decoder* self, - uint32_t a_which, - uint32_t a_n_codes0, - uint32_t a_n_codes1, - uint32_t a_base_symbol); +static wuffs_base__empty_struct +wuffs_bzip2__decoder__build_huffman_table( + wuffs_bzip2__decoder* self, + uint32_t a_which); -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_bmi2( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +static wuffs_base__empty_struct +wuffs_bzip2__decoder__invert_bwt( + wuffs_bzip2__decoder* self); WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast32( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src); +static wuffs_base__empty_struct +wuffs_bzip2__decoder__flush_fast( + wuffs_bzip2__decoder* self, + wuffs_base__io_buffer* a_dst); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast64( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src); +wuffs_bzip2__decoder__flush_slow( + wuffs_bzip2__decoder* self, + wuffs_base__io_buffer* a_dst); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_bzip2__decoder__decode_huffman_fast( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_slow( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_bzip2__decoder__decode_huffman_slow( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_src); // ---------------- VTables const wuffs_base__io_transformer__func_ptrs -wuffs_deflate__decoder__func_ptrs_for__wuffs_base__io_transformer = { +wuffs_bzip2__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_bzip2__decoder__dst_history_retain_length), (uint64_t(*)(const void*, - uint32_t))(&wuffs_deflate__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_deflate__decoder__history_retain_length), + uint32_t))(&wuffs_bzip2__decoder__get_quirk), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_deflate__decoder__set_quirk), + uint64_t))(&wuffs_bzip2__decoder__set_quirk), (wuffs_base__status(*)(void*, wuffs_base__io_buffer*, wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_deflate__decoder__transform_io), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_deflate__decoder__workbuf_len), + wuffs_base__slice_u8))(&wuffs_bzip2__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_bzip2__decoder__workbuf_len), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_deflate__decoder__initialize( - wuffs_deflate__decoder* self, +wuffs_bzip2__decoder__initialize( + wuffs_bzip2__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -34263,25 +34215,23 @@ wuffs_deflate__decoder__initialize( } } - self->private_impl.choosy_decode_huffman_fast64 = &wuffs_deflate__decoder__decode_huffman_fast64__choosy_default; - self->private_impl.magic = WUFFS_BASE__MAGIC; self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = wuffs_base__io_transformer__vtable_name; self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_deflate__decoder__func_ptrs_for__wuffs_base__io_transformer); + (const void*)(&wuffs_bzip2__decoder__func_ptrs_for__wuffs_base__io_transformer); return wuffs_base__make_status(NULL); } -wuffs_deflate__decoder* -wuffs_deflate__decoder__alloc(void) { - wuffs_deflate__decoder* x = - (wuffs_deflate__decoder*)(calloc(sizeof(wuffs_deflate__decoder), 1)); +wuffs_bzip2__decoder* +wuffs_bzip2__decoder__alloc(void) { + wuffs_bzip2__decoder* x = + (wuffs_bzip2__decoder*)(calloc(1, sizeof(wuffs_bzip2__decoder))); if (!x) { return NULL; } - if (wuffs_deflate__decoder__initialize( - x, sizeof(wuffs_deflate__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + if (wuffs_bzip2__decoder__initialize( + x, sizeof(wuffs_bzip2__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { free(x); return NULL; } @@ -34289,59 +34239,18 @@ wuffs_deflate__decoder__alloc(void) { } size_t -sizeof__wuffs_deflate__decoder(void) { - return sizeof(wuffs_deflate__decoder); +sizeof__wuffs_bzip2__decoder(void) { + return sizeof(wuffs_bzip2__decoder); } // ---------------- Function Implementations -// -------- func deflate.decoder.add_history - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_deflate__decoder__add_history( - wuffs_deflate__decoder* self, - wuffs_base__slice_u8 a_hist) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } - - wuffs_base__slice_u8 v_s = {0}; - uint64_t v_n_copied = 0; - uint32_t v_already_full = 0; - - v_s = a_hist; - if (((uint64_t)(v_s.len)) >= 32768u) { - v_s = wuffs_base__slice_u8__suffix(v_s, 32768u); - wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_history, 32768), v_s); - self->private_impl.f_history_index = 32768u; - } else { - v_n_copied = wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_history, (self->private_impl.f_history_index & 32767u), 32768), v_s); - if (v_n_copied < ((uint64_t)(v_s.len))) { - v_s = wuffs_base__slice_u8__subslice_i(v_s, v_n_copied); - v_n_copied = wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_history, 32768), v_s); - self->private_impl.f_history_index = (((uint32_t)((v_n_copied & 32767u))) + 32768u); - } else { - v_already_full = 0u; - if (self->private_impl.f_history_index >= 32768u) { - v_already_full = 32768u; - } - self->private_impl.f_history_index = ((self->private_impl.f_history_index & 32767u) + ((uint32_t)((v_n_copied & 32767u))) + v_already_full); - } - } - wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_history, 32768, 33025), wuffs_base__make_slice_u8(self->private_data.f_history, 33025)); - return wuffs_base__make_empty_struct(); -} - -// -------- func deflate.decoder.get_quirk +// -------- func bzip2.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_deflate__decoder__get_quirk( - const wuffs_deflate__decoder* self, +wuffs_bzip2__decoder__get_quirk( + const wuffs_bzip2__decoder* self, uint32_t a_key) { if (!self) { return 0; @@ -34351,15 +34260,18 @@ wuffs_deflate__decoder__get_quirk( return 0; } + if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + return 1u; + } return 0u; } -// -------- func deflate.decoder.set_quirk +// -------- func bzip2.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_deflate__decoder__set_quirk( - wuffs_deflate__decoder* self, +wuffs_bzip2__decoder__set_quirk( + wuffs_bzip2__decoder* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -34372,32 +34284,36 @@ wuffs_deflate__decoder__set_quirk( : wuffs_base__error__initialize_not_called); } + if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + return wuffs_base__make_status(NULL); + } return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func deflate.decoder.history_retain_length +// -------- func bzip2.decoder.dst_history_retain_length WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_deflate__decoder__history_retain_length( - const wuffs_deflate__decoder* self) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_bzip2__decoder__dst_history_retain_length( + const wuffs_bzip2__decoder* self) { if (!self) { - return 0; + return wuffs_base__utility__make_optional_u63(false, 0u); } if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + return wuffs_base__utility__make_optional_u63(false, 0u); } - return 0u; + return wuffs_base__utility__make_optional_u63(true, 0u); } -// -------- func deflate.decoder.workbuf_len +// -------- func bzip2.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_deflate__decoder__workbuf_len( - const wuffs_deflate__decoder* self) { +wuffs_bzip2__decoder__workbuf_len( + const wuffs_bzip2__decoder* self) { if (!self) { return wuffs_base__utility__empty_range_ii_u64(); } @@ -34406,15 +34322,15 @@ wuffs_deflate__decoder__workbuf_len( return wuffs_base__utility__empty_range_ii_u64(); } - return wuffs_base__utility__make_range_ii_u64(1u, 1u); + return wuffs_base__utility__make_range_ii_u64(0u, 0u); } -// -------- func deflate.decoder.transform_io +// -------- func bzip2.decoder.transform_io WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_deflate__decoder__transform_io( - wuffs_deflate__decoder* self, +wuffs_bzip2__decoder__transform_io( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf) { @@ -34441,17 +34357,17 @@ wuffs_deflate__decoder__transform_io( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; + uint32_t coro_susp_point = self->private_impl.p_transform_io; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_deflate__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + wuffs_base__status t_0 = wuffs_bzip2__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_deflate__error__truncated_input); + status = wuffs_base__make_status(wuffs_bzip2__error__truncated_input); goto exit; } status = v_status; @@ -34459,13 +34375,13 @@ wuffs_deflate__decoder__transform_io( } ok: - self->private_impl.p_transform_io[0] = 0; + self->private_impl.p_transform_io = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; @@ -34476,103 +34392,22 @@ wuffs_deflate__decoder__transform_io( return status; } -// -------- func deflate.decoder.do_transform_io +// -------- func bzip2.decoder.do_transform_io WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__do_transform_io( - wuffs_deflate__decoder* self, +wuffs_bzip2__decoder__do_transform_io( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint64_t v_mark = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } - - uint32_t coro_susp_point = self->private_impl.p_do_transform_io[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - self->private_impl.choosy_decode_huffman_fast64 = ( -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_bmi2() ? &wuffs_deflate__decoder__decode_huffman_bmi2 : -#endif - self->private_impl.choosy_decode_huffman_fast64); - while (true) { - v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); - { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - wuffs_base__status t_0 = wuffs_deflate__decoder__decode_blocks(self, a_dst, a_src); - v_status = t_0; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - } - if ( ! wuffs_base__status__is_suspension(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_transformed_history_count, wuffs_base__io__count_since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)))); - wuffs_deflate__decoder__add_history(self, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_do_transform_io[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_do_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - - return status; -} - -// -------- func deflate.decoder.decode_blocks - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_blocks( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_final = 0; - uint32_t v_b0 = 0; - uint32_t v_type = 0; + uint8_t v_c8 = 0; + uint32_t v_i = 0; + uint64_t v_tag = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_final_checksum_want = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -34585,125 +34420,206 @@ wuffs_deflate__decoder__decode_blocks( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_blocks[0]; + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; if (coro_susp_point) { - v_final = self->private_data.s_decode_blocks[0].v_final; + v_i = self->private_data.s_do_transform_io.v_i; + v_tag = self->private_data.s_do_transform_io.v_tag; + v_final_checksum_want = self->private_data.s_do_transform_io.v_final_checksum_want; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - label__outer__continue:; - while (v_final == 0u) { - while (self->private_impl.f_n_bits < 3u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 != 66u) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (v_c8 != 90u) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (v_c8 != 104u) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if ((v_c8 < 49u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); + goto exit; + } + self->private_impl.f_max_incl_block_size = (((uint32_t)(((uint8_t)(v_c8 - 48u)))) * 100000u); + while (true) { + v_tag = 0u; + v_i = 0u; + while (v_i < 48u) { + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; } - uint32_t t_0 = *iop_a_src++; - v_b0 = t_0; + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } - self->private_impl.f_bits |= (v_b0 << (self->private_impl.f_n_bits & 3u)); - self->private_impl.f_n_bits = ((self->private_impl.f_n_bits & 3u) + 8u); + v_tag <<= 1u; + v_tag |= ((uint64_t)((self->private_impl.f_bits >> 31u))); + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_i += 1u; } - v_final = (self->private_impl.f_bits & 1u); - v_type = ((self->private_impl.f_bits >> 1u) & 3u); - self->private_impl.f_bits >>= 3u; - self->private_impl.f_n_bits -= 3u; - if (v_type == 0u) { + if (v_tag == 25779555029136u) { + break; + } else if (v_tag != 54156738319193u) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + status = wuffs_bzip2__decoder__prepare_block(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_block_size = 0u; + self->private_impl.f_decode_huffman_finished = false; + self->private_impl.f_decode_huffman_which = WUFFS_BZIP2__CLAMP_TO_5[((uint8_t)(self->private_data.f_huffman_selectors[0u] & 7u))]; + self->private_impl.f_decode_huffman_ticks = 50u; + self->private_impl.f_decode_huffman_section = 0u; + self->private_impl.f_decode_huffman_run_shift = 0u; + while ( ! self->private_impl.f_decode_huffman_finished) { if (a_src) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_deflate__decoder__decode_uncompressed(self, a_dst, a_src); + v_status = wuffs_bzip2__decoder__decode_huffman_fast(self, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; } - if (status.repr) { - goto suspend; - } - continue; - } else if (v_type == 1u) { - v_status = wuffs_deflate__decoder__init_fixed_huffman(self); - if ( ! wuffs_base__status__is_ok(&v_status)) { + if (wuffs_base__status__is_error(&v_status)) { status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; + goto exit; + } else if (self->private_impl.f_decode_huffman_finished) { + break; } - } else if (v_type == 2u) { if (a_src) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_deflate__decoder__init_dynamic_huffman(self, a_src); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + status = wuffs_bzip2__decoder__decode_huffman_slow(self, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; } if (status.repr) { goto suspend; } - } else { - status = wuffs_base__make_status(wuffs_deflate__error__bad_block); + } + wuffs_bzip2__decoder__invert_bwt(self); + self->private_impl.f_block_checksum_have = 4294967295u; + if (self->private_impl.f_original_pointer >= self->private_impl.f_block_size) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); goto exit; } - self->private_impl.f_end_of_block = false; - while (true) { - if (sizeof(void*) == 4u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_status = wuffs_deflate__decoder__decode_huffman_fast32(self, a_dst, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } else { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_status = wuffs_deflate__decoder__decode_huffman_fast64(self, a_dst, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - if (wuffs_base__status__is_error(&v_status)) { - status = v_status; - goto exit; - } - if (self->private_impl.f_end_of_block) { - goto label__outer__continue; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - status = wuffs_deflate__decoder__decode_huffman_slow(self, a_dst, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + self->private_impl.f_flush_pointer = (self->private_data.f_bwt[self->private_impl.f_original_pointer] >> 12u); + self->private_impl.f_flush_repeat_count = 0u; + self->private_impl.f_flush_prev = 0u; + while (self->private_impl.f_block_size > 0u) { + wuffs_bzip2__decoder__flush_fast(self, a_dst); + if (self->private_impl.f_block_size <= 0u) { + break; } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_bzip2__decoder__flush_slow(self, a_dst); if (status.repr) { goto suspend; } - if (self->private_impl.f_end_of_block) { - goto label__outer__continue; + } + self->private_impl.f_block_checksum_have ^= 4294967295u; + if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_block_checksum_have != self->private_impl.f_block_checksum_want)) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_checksum); + goto exit; + } + self->private_impl.f_final_checksum_have = (self->private_impl.f_block_checksum_have ^ ((self->private_impl.f_final_checksum_have >> 31u) | ((uint32_t)(self->private_impl.f_final_checksum_have << 1u)))); + } + v_final_checksum_want = 0u; + v_i = 0u; + while (v_i < 32u) { + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; } + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } + v_final_checksum_want <<= 1u; + v_final_checksum_want |= (self->private_impl.f_bits >> 31u); + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_i += 1u; + } + if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_final_checksum_have != v_final_checksum_want)) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_checksum); + goto exit; } + goto ok; ok: - self->private_impl.p_decode_blocks[0] = 0; + self->private_impl.p_do_transform_io = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_blocks[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_blocks[0].v_final = v_final; + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_transform_io.v_i = v_i; + self->private_data.s_do_transform_io.v_tag = v_tag; + self->private_data.s_do_transform_io.v_final_checksum_want = v_final_checksum_want; goto exit; exit: @@ -34714,32 +34630,23 @@ wuffs_deflate__decoder__decode_blocks( return status; } -// -------- func deflate.decoder.decode_uncompressed +// -------- func bzip2.decoder.prepare_block WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_uncompressed( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_bzip2__decoder__prepare_block( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_length = 0; - uint32_t v_n_copied = 0; + uint8_t v_c8 = 0; + uint32_t v_i = 0; + uint32_t v_j = 0; + uint32_t v_selector = 0; + uint32_t v_sel_ff = 0; + uint8_t v_movee = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -34751,387 +34658,287 @@ wuffs_deflate__decoder__decode_uncompressed( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_uncompressed[0]; + uint32_t coro_susp_point = self->private_impl.p_prepare_block; if (coro_susp_point) { - v_length = self->private_data.s_decode_uncompressed[0].v_length; + v_i = self->private_data.s_prepare_block.v_i; + v_selector = self->private_data.s_prepare_block.v_selector; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - self->private_impl.f_n_bits = 0u; - self->private_impl.f_bits = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_uncompressed[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { + self->private_impl.f_block_checksum_want = 0u; + v_i = 0u; + while (v_i < 32u) { + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_uncompressed[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } - v_length = t_0; - } - if ((((v_length) & 0xFFFFu) + ((v_length) >> (32u - 16u))) != 65535u) { - status = wuffs_base__make_status(wuffs_deflate__error__inconsistent_stored_block_length); - goto exit; - } - v_length = ((v_length) & 0xFFFFu); - while (true) { - v_n_copied = wuffs_base__io_writer__limited_copy_u32_from_reader( - &iop_a_dst, io2_a_dst,v_length, &iop_a_src, io2_a_src); - if (v_length <= v_n_copied) { - status = wuffs_base__make_status(NULL); - goto ok; - } - v_length -= v_n_copied; - if (((uint64_t)(io2_a_dst - iop_a_dst)) == 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - } else { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - } + self->private_impl.f_block_checksum_want <<= 1u; + self->private_impl.f_block_checksum_want |= (self->private_impl.f_bits >> 31u); + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_i += 1u; } - - ok: - self->private_impl.p_decode_uncompressed[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_uncompressed[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_uncompressed[0].v_length = v_length; - - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func deflate.decoder.init_fixed_huffman - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__init_fixed_huffman( - wuffs_deflate__decoder* self) { - uint32_t v_i = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - while (v_i < 144u) { - self->private_data.f_code_lengths[v_i] = 8u; - v_i += 1u; - } - while (v_i < 256u) { - self->private_data.f_code_lengths[v_i] = 9u; - v_i += 1u; - } - while (v_i < 280u) { - self->private_data.f_code_lengths[v_i] = 7u; - v_i += 1u; - } - while (v_i < 288u) { - self->private_data.f_code_lengths[v_i] = 8u; - v_i += 1u; - } - while (v_i < 320u) { - self->private_data.f_code_lengths[v_i] = 5u; - v_i += 1u; - } - v_status = wuffs_deflate__decoder__init_huff(self, - 0u, - 0u, - 288u, - 257u); - if (wuffs_base__status__is_error(&v_status)) { - return v_status; - } - v_status = wuffs_deflate__decoder__init_huff(self, - 1u, - 288u, - 320u, - 0u); - if (wuffs_base__status__is_error(&v_status)) { - return v_status; - } - return wuffs_base__make_status(NULL); -} - -// -------- func deflate.decoder.init_dynamic_huffman - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__init_dynamic_huffman( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_b0 = 0; - uint32_t v_n_lit = 0; - uint32_t v_n_dist = 0; - uint32_t v_n_clen = 0; - uint32_t v_i = 0; - uint32_t v_b1 = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t v_mask = 0; - uint32_t v_table_entry = 0; - uint32_t v_table_entry_n_bits = 0; - uint32_t v_b2 = 0; - uint32_t v_n_extra_bits = 0; - uint8_t v_rep_symbol = 0; - uint32_t v_rep_count = 0; - uint32_t v_b3 = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_init_dynamic_huffman[0]; - if (coro_susp_point) { - v_bits = self->private_data.s_init_dynamic_huffman[0].v_bits; - v_n_bits = self->private_data.s_init_dynamic_huffman[0].v_n_bits; - v_n_lit = self->private_data.s_init_dynamic_huffman[0].v_n_lit; - v_n_dist = self->private_data.s_init_dynamic_huffman[0].v_n_dist; - v_n_clen = self->private_data.s_init_dynamic_huffman[0].v_n_clen; - v_i = self->private_data.s_init_dynamic_huffman[0].v_i; - v_mask = self->private_data.s_init_dynamic_huffman[0].v_mask; - v_n_extra_bits = self->private_data.s_init_dynamic_huffman[0].v_n_extra_bits; - v_rep_symbol = self->private_data.s_init_dynamic_huffman[0].v_rep_symbol; - v_rep_count = self->private_data.s_init_dynamic_huffman[0].v_rep_count; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - v_bits = self->private_impl.f_bits; - v_n_bits = self->private_impl.f_n_bits; - while (v_n_bits < 14u) { + if (self->private_impl.f_n_bits <= 0u) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint32_t t_0 = *iop_a_src++; - v_b0 = t_0; + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; } - v_bits |= (v_b0 << v_n_bits); - v_n_bits += 8u; - } - v_n_lit = (((v_bits) & 0x1Fu) + 257u); - if (v_n_lit > 286u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_literal_length_code_count); - goto exit; + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } - v_bits >>= 5u; - v_n_dist = (((v_bits) & 0x1Fu) + 1u); - if (v_n_dist > 30u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_distance_code_count); + if ((self->private_impl.f_bits >> 31u) != 0u) { + status = wuffs_base__make_status(wuffs_bzip2__error__unsupported_block_randomization); goto exit; } - v_bits >>= 5u; - v_n_clen = (((v_bits) & 0xFu) + 4u); - v_bits >>= 4u; - v_n_bits -= 14u; + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + self->private_impl.f_original_pointer = 0u; v_i = 0u; - while (v_i < v_n_clen) { - while (v_n_bits < 3u) { + while (v_i < 24u) { + if (self->private_impl.f_n_bits <= 0u) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint32_t t_1 = *iop_a_src++; - v_b1 = t_1; + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; } - v_bits |= (v_b1 << v_n_bits); - v_n_bits += 8u; + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } - self->private_data.f_code_lengths[WUFFS_DEFLATE__CODE_ORDER[v_i]] = ((uint8_t)((v_bits & 7u))); - v_bits >>= 3u; - v_n_bits -= 3u; + self->private_impl.f_original_pointer <<= 1u; + self->private_impl.f_original_pointer |= (self->private_impl.f_bits >> 31u); + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; v_i += 1u; } - while (v_i < 19u) { - self->private_data.f_code_lengths[WUFFS_DEFLATE__CODE_ORDER[v_i]] = 0u; + v_i = 0u; + while (v_i < 256u) { + self->private_data.f_presence[v_i] = 0u; v_i += 1u; } - v_status = wuffs_deflate__decoder__init_huff(self, - 0u, - 0u, - 19u, - 4095u); - if (wuffs_base__status__is_error(&v_status)) { - status = v_status; - goto exit; - } - v_mask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); v_i = 0u; - while (v_i < (v_n_lit + v_n_dist)) { - while (true) { - v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_mask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; - } + while (v_i < 256u) { + if (self->private_impl.f_n_bits <= 0u) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint32_t t_2 = *iop_a_src++; - v_b2 = t_2; + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; } - v_bits |= (v_b2 << v_n_bits); - v_n_bits += 8u; + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } - if ((v_table_entry >> 24u) != 128u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; + if ((self->private_impl.f_bits >> 31u) != 0u) { + self->private_data.f_presence[v_i] = 1u; } - v_table_entry = ((v_table_entry >> 8u) & 255u); - if (v_table_entry < 16u) { - self->private_data.f_code_lengths[v_i] = ((uint8_t)(v_table_entry)); - v_i += 1u; + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_i += 16u; + } + self->private_data.f_scratch = 0u; + v_i = 0u; + while (v_i < 256u) { + if (self->private_data.f_presence[v_i] == 0u) { + v_i += 16u; continue; } - v_n_extra_bits = 0u; - v_rep_symbol = 0u; - v_rep_count = 0u; - if (v_table_entry == 16u) { - v_n_extra_bits = 2u; - if (v_i <= 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_repetition); - goto exit; + while (true) { + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; + } + self->private_data.f_scratch += (self->private_impl.f_bits >> 31u); + self->private_data.f_presence[(v_i & 255u)] = ((uint8_t)((self->private_impl.f_bits >> 31u))); + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_i += 1u; + if ((v_i & 15u) == 0u) { + break; } - v_rep_symbol = (self->private_data.f_code_lengths[(v_i - 1u)] & 15u); - v_rep_count = 3u; - } else if (v_table_entry == 17u) { - v_n_extra_bits = 3u; - v_rep_symbol = 0u; - v_rep_count = 3u; - } else if (v_table_entry == 18u) { - v_n_extra_bits = 7u; - v_rep_symbol = 0u; - v_rep_count = 11u; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; } - while (v_n_bits < v_n_extra_bits) { + } + if ((self->private_data.f_scratch < 1u) || (256u < self->private_data.f_scratch)) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); + goto exit; + } + self->private_impl.f_num_symbols = (self->private_data.f_scratch + 2u); + self->private_data.f_scratch = 0u; + v_i = 0u; + while (v_i < 3u) { + if (self->private_impl.f_n_bits <= 0u) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint32_t t_3 = *iop_a_src++; - v_b3 = t_3; + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; } - v_bits |= (v_b3 << v_n_bits); - v_n_bits += 8u; + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } - v_rep_count += ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_n_extra_bits)); - v_bits >>= v_n_extra_bits; - v_n_bits -= v_n_extra_bits; - while (v_rep_count > 0u) { - if (v_i >= (v_n_lit + v_n_dist)) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_count); - goto exit; + self->private_data.f_scratch <<= 1u; + self->private_data.f_scratch |= (self->private_impl.f_bits >> 31u); + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_i += 1u; + } + if ((self->private_data.f_scratch < 2u) || (6u < self->private_data.f_scratch)) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); + goto exit; + } + self->private_impl.f_num_huffman_codes = self->private_data.f_scratch; + self->private_data.f_scratch = 0u; + v_i = 0u; + while (v_i < 15u) { + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; } - self->private_data.f_code_lengths[v_i] = v_rep_symbol; - v_i += 1u; - v_rep_count -= 1u; + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } + self->private_data.f_scratch <<= 1u; + self->private_data.f_scratch |= (self->private_impl.f_bits >> 31u); + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_i += 1u; } - if (v_i != (v_n_lit + v_n_dist)) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_count); + if ((self->private_data.f_scratch < 1u) || (18001u < self->private_data.f_scratch)) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); goto exit; } - if (self->private_data.f_code_lengths[256u] == 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__missing_end_of_block_code); - goto exit; + self->private_impl.f_num_sections = self->private_data.f_scratch; + v_i = 0u; + while (v_i < self->private_impl.f_num_huffman_codes) { + self->private_data.f_mtft[v_i] = ((uint8_t)(v_i)); + v_i += 1u; } - v_status = wuffs_deflate__decoder__init_huff(self, - 0u, - 0u, - v_n_lit, - 257u); - if (wuffs_base__status__is_error(&v_status)) { - status = v_status; - goto exit; + v_i = 0u; + while (v_i < self->private_impl.f_num_sections) { + v_selector = 0u; + while (true) { + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_7 = *iop_a_src++; + v_c8 = t_7; + } + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; + } + if ((self->private_impl.f_bits >> 31u) == 0u) { + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + break; + } + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_selector += 1u; + if (v_selector >= self->private_impl.f_num_huffman_codes) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); + goto exit; + } + } + if (v_selector == 0u) { + self->private_data.f_huffman_selectors[v_i] = self->private_data.f_mtft[0u]; + } else { + v_sel_ff = (v_selector & 255u); + v_movee = self->private_data.f_mtft[v_sel_ff]; + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_mtft, 1, (1u + v_sel_ff)), wuffs_base__make_slice_u8(self->private_data.f_mtft, v_sel_ff)); + self->private_data.f_mtft[0u] = v_movee; + self->private_data.f_huffman_selectors[v_i] = v_movee; + } + v_i += 1u; } - v_status = wuffs_deflate__decoder__init_huff(self, - 1u, - v_n_lit, - (v_n_lit + v_n_dist), - 0u); - if (wuffs_base__status__is_error(&v_status)) { - status = v_status; - goto exit; + v_i = 0u; + while (v_i < self->private_impl.f_num_huffman_codes) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_bzip2__decoder__read_code_lengths(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + v_status = wuffs_bzip2__decoder__build_huffman_tree(self, v_i); + if (wuffs_base__status__is_error(&v_status)) { + status = v_status; + goto exit; + } + wuffs_bzip2__decoder__build_huffman_table(self, v_i); + v_i += 1u; + } + v_i = 0u; + v_j = 0u; + while (v_i < 256u) { + if (self->private_data.f_presence[v_i] != 0u) { + self->private_data.f_mtft[(v_j & 255u)] = ((uint8_t)(v_i)); + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 256u) { + self->private_data.f_letter_counts[v_i] = 0u; + v_i += 1u; } - self->private_impl.f_bits = v_bits; - self->private_impl.f_n_bits = v_n_bits; goto ok; ok: - self->private_impl.p_init_dynamic_huffman[0] = 0; + self->private_impl.p_prepare_block = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_init_dynamic_huffman[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_init_dynamic_huffman[0].v_bits = v_bits; - self->private_data.s_init_dynamic_huffman[0].v_n_bits = v_n_bits; - self->private_data.s_init_dynamic_huffman[0].v_n_lit = v_n_lit; - self->private_data.s_init_dynamic_huffman[0].v_n_dist = v_n_dist; - self->private_data.s_init_dynamic_huffman[0].v_n_clen = v_n_clen; - self->private_data.s_init_dynamic_huffman[0].v_i = v_i; - self->private_data.s_init_dynamic_huffman[0].v_mask = v_mask; - self->private_data.s_init_dynamic_huffman[0].v_n_extra_bits = v_n_extra_bits; - self->private_data.s_init_dynamic_huffman[0].v_rep_symbol = v_rep_symbol; - self->private_data.s_init_dynamic_huffman[0].v_rep_count = v_rep_count; + self->private_impl.p_prepare_block = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_prepare_block.v_i = v_i; + self->private_data.s_prepare_block.v_selector = v_selector; goto exit; exit: @@ -35142,285 +34949,295 @@ wuffs_deflate__decoder__init_dynamic_huffman( return status; } -// -------- func deflate.decoder.init_huff +// -------- func bzip2.decoder.read_code_lengths WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__init_huff( - wuffs_deflate__decoder* self, - uint32_t a_which, - uint32_t a_n_codes0, - uint32_t a_n_codes1, - uint32_t a_base_symbol) { - uint16_t v_counts[16] = {0}; +wuffs_bzip2__decoder__read_code_lengths( + wuffs_bzip2__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; uint32_t v_i = 0; - uint32_t v_remaining = 0; - uint16_t v_offsets[16] = {0}; - uint32_t v_n_symbols = 0; - uint32_t v_count = 0; - uint16_t v_symbols[320] = {0}; - uint32_t v_min_cl = 0; - uint32_t v_max_cl = 0; - uint32_t v_initial_high_bits = 0; - uint32_t v_prev_cl = 0; - uint32_t v_prev_redirect_key = 0; - uint32_t v_top = 0; - uint32_t v_next_top = 0; - uint32_t v_code = 0; - uint32_t v_key = 0; - uint32_t v_value = 0; - uint32_t v_cl = 0; - uint32_t v_redirect_key = 0; - uint32_t v_j = 0; - uint32_t v_reversed_key = 0; - uint32_t v_symbol = 0; - uint32_t v_high_bits = 0; - uint32_t v_delta = 0; + uint32_t v_code_length = 0; - v_i = a_n_codes0; - while (v_i < a_n_codes1) { - if (v_counts[(self->private_data.f_code_lengths[v_i] & 15u)] >= 320u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_counts[(self->private_data.f_code_lengths[v_i] & 15u)] += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_i += 1u; - } - if ((((uint32_t)(v_counts[0u])) + a_n_codes0) == a_n_codes1) { - return wuffs_base__make_status(wuffs_deflate__error__no_huffman_codes); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - v_remaining = 1u; - v_i = 1u; - while (v_i <= 15u) { - if (v_remaining > 1073741824u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - v_remaining <<= 1u; - if (v_remaining < ((uint32_t)(v_counts[v_i]))) { - return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_over_subscribed); - } - v_remaining -= ((uint32_t)(v_counts[v_i])); - v_i += 1u; + + uint32_t coro_susp_point = self->private_impl.p_read_code_lengths; + if (coro_susp_point) { + v_i = self->private_data.s_read_code_lengths.v_i; + v_code_length = self->private_data.s_read_code_lengths.v_code_length; } - if (v_remaining != 0u) { - if ((a_which == 1u) && (v_counts[1u] == 1u) && ((((uint32_t)(v_counts[0u])) + a_n_codes0 + 1u) == a_n_codes1)) { - v_i = 0u; - while (v_i <= 29u) { - if (self->private_data.f_code_lengths[(a_n_codes0 + v_i)] == 1u) { - self->private_impl.f_n_huffs_bits[1u] = 1u; - self->private_data.f_huffs[1u][0u] = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[v_i] | 1u); - self->private_data.f_huffs[1u][1u] = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[31u] | 1u); - return wuffs_base__make_status(NULL); + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_code_lengths_bitmask = 0u; + v_i = 0u; + while (v_i < 5u) { + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } - v_i += 1u; + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } + v_code_length <<= 1u; + v_code_length |= (self->private_impl.f_bits >> 31u); + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + v_i += 1u; } - return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_under_subscribed); - } - v_i = 1u; - while (v_i <= 15u) { - v_offsets[v_i] = ((uint16_t)(v_n_symbols)); - v_count = ((uint32_t)(v_counts[v_i])); - if (v_n_symbols > (320u - v_count)) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - v_n_symbols = (v_n_symbols + v_count); - v_i += 1u; - } - if (v_n_symbols > 288u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - v_i = a_n_codes0; - while (v_i < a_n_codes1) { - if (v_i < a_n_codes0) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - if (self->private_data.f_code_lengths[v_i] != 0u) { - if (v_offsets[(self->private_data.f_code_lengths[v_i] & 15u)] >= 320u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + v_i = 0u; + while (v_i < self->private_impl.f_num_symbols) { + while (true) { + if ((v_code_length < 1u) || (20u < v_code_length)) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_header); + goto exit; + } + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; + } + if ((self->private_impl.f_bits >> 31u) == 0u) { + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + break; + } + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; + } + if ((self->private_impl.f_bits >> 31u) == 0u) { + v_code_length += 1u; + } else { + v_code_length -= 1u; + } + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; } - v_symbols[v_offsets[(self->private_data.f_code_lengths[v_i] & 15u)]] = ((uint16_t)((v_i - a_n_codes0))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_offsets[(self->private_data.f_code_lengths[v_i] & 15u)] += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } - v_i += 1u; - } - v_min_cl = 1u; - while (true) { - if (v_counts[v_min_cl] != 0u) { - break; - } - if (v_min_cl >= 9u) { - return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_minimum_code_length); - } - v_min_cl += 1u; - } - v_max_cl = 15u; - while (true) { - if (v_counts[v_max_cl] != 0u) { - break; - } - if (v_max_cl <= 1u) { - return wuffs_base__make_status(wuffs_deflate__error__no_huffman_codes); + self->private_impl.f_code_lengths_bitmask |= (((uint32_t)(1u)) << (v_code_length & 31u)); + self->private_data.f_bwt[v_i] = v_code_length; + v_i += 1u; } - v_max_cl -= 1u; - } - if (v_max_cl <= 9u) { - self->private_impl.f_n_huffs_bits[a_which] = v_max_cl; - } else { - self->private_impl.f_n_huffs_bits[a_which] = 9u; - } - v_i = 0u; - if ((v_n_symbols != ((uint32_t)(v_offsets[v_max_cl]))) || (v_n_symbols != ((uint32_t)(v_offsets[15u])))) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - if ((a_n_codes0 + ((uint32_t)(v_symbols[0u]))) >= 320u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + + goto ok; + ok: + self->private_impl.p_read_code_lengths = 0; + goto exit; } - v_initial_high_bits = 512u; - if (v_max_cl < 9u) { - v_initial_high_bits = (((uint32_t)(1u)) << v_max_cl); + + goto suspend; + suspend: + self->private_impl.p_read_code_lengths = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_read_code_lengths.v_i = v_i; + self->private_data.s_read_code_lengths.v_code_length = v_code_length; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_prev_cl = ((uint32_t)((self->private_data.f_code_lengths[(a_n_codes0 + ((uint32_t)(v_symbols[0u])))] & 15u))); - v_prev_redirect_key = 4294967295u; - v_top = 0u; - v_next_top = 512u; - v_code = 0u; - v_key = 0u; - v_value = 0u; - while (true) { - if ((a_n_codes0 + ((uint32_t)(v_symbols[v_i]))) >= 320u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + + return status; +} + +// -------- func bzip2.decoder.build_huffman_tree + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bzip2__decoder__build_huffman_tree( + wuffs_bzip2__decoder* self, + uint32_t a_which) { + uint32_t v_code_length = 0; + uint32_t v_symbol_index = 0; + uint32_t v_num_branch_nodes = 0; + uint32_t v_stack_height = 0; + uint32_t v_stack_values[21] = {0}; + uint32_t v_node_index = 0; + uint16_t v_leaf_value = 0; + + self->private_data.f_huffman_trees[a_which][0u][0u] = 0u; + self->private_data.f_huffman_trees[a_which][0u][1u] = 0u; + v_num_branch_nodes = 1u; + v_stack_height = 1u; + v_stack_values[0u] = 0u; + v_code_length = 1u; + while (v_code_length <= 20u) { + if ((self->private_impl.f_code_lengths_bitmask & (((uint32_t)(1u)) << v_code_length)) == 0u) { + v_code_length += 1u; + continue; } - v_cl = ((uint32_t)((self->private_data.f_code_lengths[(a_n_codes0 + ((uint32_t)(v_symbols[v_i])))] & 15u))); - if (v_cl > v_prev_cl) { - v_code <<= (v_cl - v_prev_cl); - if (v_code >= 32768u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + v_symbol_index = 0u; + while (v_symbol_index < self->private_impl.f_num_symbols) { + if (self->private_data.f_bwt[v_symbol_index] != v_code_length) { + v_symbol_index += 1u; + continue; } - } - v_prev_cl = v_cl; - v_key = v_code; - if (v_cl > 9u) { - v_cl -= 9u; - v_redirect_key = ((v_key >> v_cl) & 511u); - v_key = ((v_key) & WUFFS_BASE__LOW_BITS_MASK__U32(v_cl)); - if (v_prev_redirect_key != v_redirect_key) { - v_prev_redirect_key = v_redirect_key; - v_remaining = (((uint32_t)(1u)) << v_cl); - v_j = v_prev_cl; - while (v_j <= 15u) { - if (v_remaining <= ((uint32_t)(v_counts[v_j]))) { - break; - } - v_remaining -= ((uint32_t)(v_counts[v_j])); - if (v_remaining > 1073741824u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - v_remaining <<= 1u; - v_j += 1u; + while (true) { + if (v_stack_height <= 0u) { + return wuffs_base__make_status(wuffs_bzip2__error__bad_huffman_code_over_subscribed); + } else if (v_stack_height >= v_code_length) { + break; } - if ((v_j <= 9u) || (15u < v_j)) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + v_node_index = v_stack_values[(v_stack_height - 1u)]; + if (self->private_data.f_huffman_trees[a_which][v_node_index][0u] == 0u) { + self->private_data.f_huffman_trees[a_which][v_node_index][0u] = ((uint16_t)(v_num_branch_nodes)); + } else { + self->private_data.f_huffman_trees[a_which][v_node_index][1u] = ((uint16_t)(v_num_branch_nodes)); } - v_j -= 9u; - v_initial_high_bits = (((uint32_t)(1u)) << v_j); - v_top = v_next_top; - if ((v_top + (((uint32_t)(1u)) << v_j)) > 1024u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + if (v_num_branch_nodes >= 257u) { + return wuffs_base__make_status(wuffs_bzip2__error__bad_huffman_code_under_subscribed); } - v_next_top = (v_top + (((uint32_t)(1u)) << v_j)); - v_redirect_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_redirect_key >> 1u)])) | ((v_redirect_key & 1u) << 8u)); - self->private_data.f_huffs[a_which][v_redirect_key] = (268435465u | (v_top << 8u) | (v_j << 4u)); + v_stack_values[v_stack_height] = v_num_branch_nodes; + self->private_data.f_huffman_trees[a_which][v_num_branch_nodes][0u] = 0u; + self->private_data.f_huffman_trees[a_which][v_num_branch_nodes][1u] = 0u; + v_num_branch_nodes += 1u; + v_stack_height += 1u; } + v_node_index = v_stack_values[(v_stack_height - 1u)]; + if (v_symbol_index < 2u) { + v_leaf_value = ((uint16_t)((769u + v_symbol_index))); + } else if ((v_symbol_index + 1u) < self->private_impl.f_num_symbols) { + v_leaf_value = ((uint16_t)((511u + v_symbol_index))); + } else { + v_leaf_value = 768u; + } + if (self->private_data.f_huffman_trees[a_which][v_node_index][0u] == 0u) { + self->private_data.f_huffman_trees[a_which][v_node_index][0u] = v_leaf_value; + } else { + self->private_data.f_huffman_trees[a_which][v_node_index][1u] = v_leaf_value; + v_stack_height -= 1u; + while (v_stack_height > 0u) { + v_node_index = v_stack_values[(v_stack_height - 1u)]; + if (self->private_data.f_huffman_trees[a_which][v_node_index][1u] == 0u) { + break; + } + v_stack_height -= 1u; + } + } + v_symbol_index += 1u; } - if ((v_key >= 512u) || (v_counts[v_prev_cl] <= 0u)) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } + v_code_length += 1u; + } + if (v_stack_height != 0u) { + return wuffs_base__make_status(wuffs_bzip2__error__bad_huffman_code_under_subscribed); + } + return wuffs_base__make_status(NULL); +} + +// -------- func bzip2.decoder.build_huffman_table + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_bzip2__decoder__build_huffman_table( + wuffs_bzip2__decoder* self, + uint32_t a_which) { + uint32_t v_i = 0; + uint32_t v_bits = 0; + uint16_t v_n_bits = 0; + uint16_t v_child = 0; + + while (v_i < 256u) { + v_bits = (v_i << 24u); + v_n_bits = 0u; + v_child = 0u; + while ((v_child < 257u) && (v_n_bits < 8u)) { + v_child = self->private_data.f_huffman_trees[a_which][v_child][(v_bits >> 31u)]; + v_bits <<= 1u; #if defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" #endif - v_counts[v_prev_cl] -= 1u; + v_n_bits += 1u; #if defined(__GNUC__) #pragma GCC diagnostic pop #endif - v_reversed_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_key >> 1u)])) | ((v_key & 1u) << 8u)); - v_reversed_key >>= (9u - v_cl); - v_symbol = ((uint32_t)(v_symbols[v_i])); - if (v_symbol == 256u) { - v_value = (536870912u | v_cl); - } else if ((v_symbol < 256u) && (a_which == 0u)) { - v_value = (2147483648u | (v_symbol << 8u) | v_cl); - } else if (v_symbol >= a_base_symbol) { - v_symbol -= a_base_symbol; - if (a_which == 0u) { - v_value = (WUFFS_DEFLATE__LCODE_MAGIC_NUMBERS[(v_symbol & 31u)] | v_cl); - } else { - v_value = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[(v_symbol & 31u)] | v_cl); - } - } else { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - v_high_bits = v_initial_high_bits; - v_delta = (((uint32_t)(1u)) << v_cl); - while (v_high_bits >= v_delta) { - v_high_bits -= v_delta; - if ((v_top + ((v_high_bits | v_reversed_key) & 511u)) >= 1024u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - self->private_data.f_huffs[a_which][(v_top + ((v_high_bits | v_reversed_key) & 511u))] = v_value; } + self->private_data.f_huffman_tables[a_which][v_i] = ((uint16_t)(((uint16_t)(v_child | ((uint16_t)(v_n_bits << 12u)))))); v_i += 1u; - if (v_i >= v_n_symbols) { - break; - } - v_code += 1u; - if (v_code >= 32768u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } } - return wuffs_base__make_status(NULL); + return wuffs_base__make_empty_struct(); } -// ‼ WUFFS MULTI-FILE SECTION +x86_bmi2 -// -------- func deflate.decoder.decode_huffman_bmi2 +// -------- func bzip2.decoder.invert_bwt -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("bmi2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_bmi2( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +static wuffs_base__empty_struct +wuffs_bzip2__decoder__invert_bwt( + wuffs_bzip2__decoder* self) { + uint32_t v_i = 0; + uint32_t v_letter = 0; + uint32_t v_sum = 0; + uint32_t v_old_sum = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_table_entry = 0; - uint32_t v_table_entry_n_bits = 0; - uint64_t v_lmask = 0; - uint64_t v_dmask = 0; - uint32_t v_redir_top = 0; - uint32_t v_redir_mask = 0; - uint32_t v_length = 0; - uint32_t v_dist_minus_1 = 0; - uint32_t v_hlen = 0; - uint32_t v_hdist = 0; - uint32_t v_hdist_adjustment = 0; + v_sum = 0u; + v_i = 0u; + while (v_i < 256u) { + v_old_sum = v_sum; + v_sum += self->private_data.f_letter_counts[v_i]; + self->private_data.f_letter_counts[v_i] = v_old_sum; + v_i += 1u; + } + v_i = 0u; + while (v_i < self->private_impl.f_block_size) { + v_letter = (self->private_data.f_bwt[v_i] & 255u); + self->private_data.f_bwt[(self->private_data.f_letter_counts[v_letter] & 1048575u)] |= (v_i << 12u); + self->private_data.f_letter_counts[v_letter] += 1u; + v_i += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func bzip2.decoder.flush_fast + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_bzip2__decoder__flush_fast( + wuffs_bzip2__decoder* self, + wuffs_base__io_buffer* a_dst) { + uint32_t v_flush_pointer = 0; + uint32_t v_flush_repeat_count = 0; + uint8_t v_flush_prev = 0; + uint32_t v_block_checksum_have = 0; + uint32_t v_block_size = 0; + uint32_t v_entry = 0; + uint8_t v_curr = 0; uint8_t* iop_a_dst = NULL; uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -35435,217 +35252,204 @@ wuffs_deflate__decoder__decode_huffman_bmi2( io2_a_dst = iop_a_dst; } } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - v_bits = ((uint64_t)(self->private_impl.f_bits)); - v_n_bits = self->private_impl.f_n_bits; - v_lmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); - v_dmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); - if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { - status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); - goto exit; + v_flush_pointer = self->private_impl.f_flush_pointer; + v_flush_repeat_count = self->private_impl.f_flush_repeat_count; + v_flush_prev = self->private_impl.f_flush_prev; + v_block_checksum_have = self->private_impl.f_block_checksum_have; + v_block_size = self->private_impl.f_block_size; + while ((v_block_size > 0u) && (((uint64_t)(io2_a_dst - iop_a_dst)) >= 255u)) { + if (v_flush_repeat_count < 4u) { + v_entry = self->private_data.f_bwt[v_flush_pointer]; + v_curr = ((uint8_t)(v_entry)); + v_flush_pointer = (v_entry >> 12u); + if (v_curr == v_flush_prev) { + v_flush_repeat_count += 1u; + } else { + v_flush_repeat_count = 1u; + } + v_block_checksum_have = (WUFFS_BZIP2__REV_CRC32_TABLE[((uint8_t)(((uint8_t)((v_block_checksum_have >> 24u))) ^ v_curr))] ^ ((uint32_t)(v_block_checksum_have << 8u))); + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_curr), iop_a_dst += 1); + v_flush_prev = v_curr; + v_block_size -= 1u; + } else { + v_entry = self->private_data.f_bwt[v_flush_pointer]; + v_curr = ((uint8_t)(v_entry)); + v_flush_pointer = (v_entry >> 12u); + v_flush_repeat_count = ((uint32_t)(v_curr)); + while (v_flush_repeat_count > 0u) { + v_block_checksum_have = (WUFFS_BZIP2__REV_CRC32_TABLE[((uint8_t)(((uint8_t)((v_block_checksum_have >> 24u))) ^ v_flush_prev))] ^ ((uint32_t)(v_block_checksum_have << 8u))); + if (((uint64_t)(io2_a_dst - iop_a_dst)) > 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_flush_prev), iop_a_dst += 1); + } + v_flush_repeat_count -= 1u; + } + v_flush_repeat_count = 0u; + v_flush_prev = v_curr; + v_block_size -= 1u; + } } - v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); - label__loop__continue:; - while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 8u)) { - v_bits |= ((uint64_t)(wuffs_base__peek_u64le__no_bounds_check(iop_a_src) << (v_n_bits & 63u))); - iop_a_src += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - v_length = (((v_table_entry >> 8u) & 255u) + 3u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - v_length = (((v_length + 253u + ((uint32_t)(((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 255u) + 3u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } - v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 28u) == 1u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } - if ((v_table_entry >> 24u) != 64u) { - if ((v_table_entry >> 24u) == 8u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; + self->private_impl.f_flush_pointer = v_flush_pointer; + self->private_impl.f_flush_repeat_count = v_flush_repeat_count; + self->private_impl.f_flush_prev = v_flush_prev; + self->private_impl.f_block_checksum_have = v_block_checksum_have; + if (v_block_size <= 900000u) { + self->private_impl.f_block_size = v_block_size; + } + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + + return wuffs_base__make_empty_struct(); +} + +// -------- func bzip2.decoder.flush_slow + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_bzip2__decoder__flush_slow( + wuffs_bzip2__decoder* self, + wuffs_base__io_buffer* a_dst) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_flush_pointer = 0; + uint32_t v_flush_repeat_count = 0; + uint8_t v_flush_prev = 0; + uint32_t v_block_checksum_have = 0; + uint32_t v_block_size = 0; + uint32_t v_entry = 0; + uint8_t v_curr = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; } - v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - v_dist_minus_1 = ((v_dist_minus_1 + ((uint32_t)(((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 32767u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - do { - if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { - v_hlen = 0u; - v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); - if (v_length > v_hdist) { - v_length -= v_hdist; - v_hlen = v_hdist; + } + + uint32_t coro_susp_point = self->private_impl.p_flush_slow; + if (coro_susp_point) { + v_flush_pointer = self->private_data.s_flush_slow.v_flush_pointer; + v_flush_repeat_count = self->private_data.s_flush_slow.v_flush_repeat_count; + v_flush_prev = self->private_data.s_flush_slow.v_flush_prev; + v_block_checksum_have = self->private_data.s_flush_slow.v_block_checksum_have; + v_block_size = self->private_data.s_flush_slow.v_block_size; + v_curr = self->private_data.s_flush_slow.v_curr; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + v_flush_pointer = self->private_impl.f_flush_pointer; + v_flush_repeat_count = self->private_impl.f_flush_repeat_count; + v_flush_prev = self->private_impl.f_flush_prev; + v_block_checksum_have = self->private_impl.f_block_checksum_have; + v_block_size = self->private_impl.f_block_size; + while ((v_block_size > 0u) && ! (self->private_impl.p_flush_slow != 0)) { + if (v_flush_repeat_count < 4u) { + v_entry = self->private_data.f_bwt[v_flush_pointer]; + v_curr = ((uint8_t)(v_entry)); + v_flush_pointer = (v_entry >> 12u); + if (v_curr == v_flush_prev) { + v_flush_repeat_count += 1u; } else { - v_hlen = v_length; - v_length = 0u; - } - v_hdist += v_hdist_adjustment; - if (self->private_impl.f_history_index < v_hdist) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); - goto exit; - } - wuffs_base__io_writer__limited_copy_u32_from_slice( - &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); - if (v_length == 0u) { - goto label__loop__continue; + v_flush_repeat_count = 1u; } - if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); - goto exit; + v_block_checksum_have = (WUFFS_BZIP2__REV_CRC32_TABLE[((uint8_t)(((uint8_t)((v_block_checksum_have >> 24u))) ^ v_curr))] ^ ((uint32_t)(v_block_checksum_have << 8u))); + self->private_data.s_flush_slow.scratch = v_curr; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (iop_a_dst == io2_a_dst) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + goto suspend; } - } - if ((v_dist_minus_1 + 1u) >= 8u) { - wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else if ((v_dist_minus_1 + 1u) == 1u) { - wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + *iop_a_dst++ = ((uint8_t)(self->private_data.s_flush_slow.scratch)); + v_flush_prev = v_curr; + v_block_size -= 1u; } else { - wuffs_base__io_writer__limited_copy_u32_from_history_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + v_entry = self->private_data.f_bwt[v_flush_pointer]; + v_curr = ((uint8_t)(v_entry)); + v_flush_pointer = (v_entry >> 12u); + v_flush_repeat_count = ((uint32_t)(v_curr)); + while (v_flush_repeat_count > 0u) { + v_block_checksum_have = (WUFFS_BZIP2__REV_CRC32_TABLE[((uint8_t)(((uint8_t)((v_block_checksum_have >> 24u))) ^ v_flush_prev))] ^ ((uint32_t)(v_block_checksum_have << 8u))); + self->private_data.s_flush_slow.scratch = v_flush_prev; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (iop_a_dst == io2_a_dst) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + goto suspend; + } + *iop_a_dst++ = ((uint8_t)(self->private_data.s_flush_slow.scratch)); + v_flush_repeat_count -= 1u; + } + v_flush_repeat_count = 0u; + v_flush_prev = v_curr; + v_block_size -= 1u; } - } while (0); - } - if (v_n_bits > 63u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); - goto exit; } - } - self->private_impl.f_bits = ((uint32_t)((v_bits & ((((uint64_t)(1u)) << v_n_bits) - 1u)))); - self->private_impl.f_n_bits = v_n_bits; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + self->private_impl.f_flush_pointer = v_flush_pointer; + self->private_impl.f_flush_repeat_count = v_flush_repeat_count; + self->private_impl.f_flush_prev = v_flush_prev; + self->private_impl.f_block_checksum_have = v_block_checksum_have; + if (v_block_size <= 900000u) { + self->private_impl.f_block_size = v_block_size; + } + + goto ok; + ok: + self->private_impl.p_flush_slow = 0; goto exit; } + + goto suspend; + suspend: + self->private_impl.p_flush_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_flush_slow.v_flush_pointer = v_flush_pointer; + self->private_data.s_flush_slow.v_flush_repeat_count = v_flush_repeat_count; + self->private_data.s_flush_slow.v_flush_prev = v_flush_prev; + self->private_data.s_flush_slow.v_block_checksum_have = v_block_checksum_have; + self->private_data.s_flush_slow.v_block_size = v_block_size; + self->private_data.s_flush_slow.v_curr = v_curr; + goto exit; exit: if (a_dst && a_dst->data.ptr) { a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } return status; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_bmi2 -// -------- func deflate.decoder.decode_huffman_fast32 +// -------- func bzip2.decoder.decode_huffman_fast WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast32( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_bzip2__decoder__decode_huffman_fast( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); uint32_t v_bits = 0; uint32_t v_n_bits = 0; - uint32_t v_table_entry = 0; - uint32_t v_table_entry_n_bits = 0; - uint32_t v_lmask = 0; - uint32_t v_dmask = 0; - uint32_t v_redir_top = 0; - uint32_t v_redir_mask = 0; - uint32_t v_length = 0; - uint32_t v_dist_minus_1 = 0; - uint32_t v_hlen = 0; - uint32_t v_hdist = 0; - uint32_t v_hdist_adjustment = 0; + uint32_t v_block_size = 0; + uint8_t v_which = 0; + uint32_t v_ticks = 0; + uint32_t v_section = 0; + uint32_t v_run_shift = 0; + uint16_t v_table_entry = 0; + uint16_t v_child = 0; + uint32_t v_child_ff = 0; + uint32_t v_i = 0; + uint32_t v_j = 0; + uint32_t v_output = 0; + uint32_t v_run = 0; + uint32_t v_mtft0 = 0; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -35657,205 +35461,92 @@ wuffs_deflate__decoder__decode_huffman_fast32( io2_a_src = io0_a_src + a_src->meta.wi; } - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } v_bits = self->private_impl.f_bits; v_n_bits = self->private_impl.f_n_bits; - v_lmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); - v_dmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); - if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { - status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); - goto exit; - } - v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); - label__loop__continue:; - while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 12u)) { - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; + v_block_size = self->private_impl.f_block_size; + v_which = self->private_impl.f_decode_huffman_which; + v_ticks = self->private_impl.f_decode_huffman_ticks; + v_section = self->private_impl.f_decode_huffman_section; + v_run_shift = self->private_impl.f_decode_huffman_run_shift; + while (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { + if (v_ticks > 0u) { + v_ticks -= 1u; } else { - } - v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { - } - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + v_ticks = 49u; + v_section += 1u; + if (v_section >= self->private_impl.f_num_sections) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_number_of_sections); goto exit; } - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - v_length = (((v_table_entry >> 8u) & 255u) + 3u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { - } - v_length = (((v_length + 253u + ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255u) + 3u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } else { - } - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { + v_which = WUFFS_BZIP2__CLAMP_TO_5[((uint8_t)(self->private_data.f_huffman_selectors[(v_section & 32767u)] & 7u))]; } - v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 28u) == 1u) { - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { + v_bits |= (wuffs_base__peek_u32be__no_bounds_check(iop_a_src) >> v_n_bits); + iop_a_src += ((31u - v_n_bits) >> 3u); + v_n_bits |= 24u; + v_table_entry = self->private_data.f_huffman_tables[v_which][(v_bits >> 24u)]; + v_bits <<= ((uint16_t)(v_table_entry >> 12u)); + v_n_bits -= ((uint32_t)(((uint16_t)(v_table_entry >> 12u)))); + v_child = ((uint16_t)(v_table_entry & 1023u)); + while (v_child < 257u) { + v_child = self->private_data.f_huffman_trees[v_which][v_child][(v_bits >> 31u)]; + v_bits <<= 1u; + if (v_n_bits <= 0u) { + status = wuffs_base__make_status(wuffs_bzip2__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } else { + v_n_bits -= 1u; } - if ((v_table_entry >> 24u) != 64u) { - if ((v_table_entry >> 24u) == 8u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + if (v_child < 768u) { + v_child_ff = ((uint32_t)(((uint16_t)(v_child & 255u)))); + v_output = ((uint32_t)(self->private_data.f_mtft[v_child_ff])); + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_mtft, 1, (1u + v_child_ff)), wuffs_base__make_slice_u8(self->private_data.f_mtft, v_child_ff)); + self->private_data.f_mtft[0u] = ((uint8_t)(v_output)); + self->private_data.f_letter_counts[v_output] += 1u; + self->private_data.f_bwt[v_block_size] = v_output; + if (v_block_size >= self->private_impl.f_max_incl_block_size) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); goto exit; } - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; + v_block_size += 1u; + v_run_shift = 0u; + continue; + } else if (v_child == 768u) { + self->private_impl.f_decode_huffman_finished = true; + break; } - v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_n_bits < v_table_entry_n_bits) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; + if (v_run_shift >= 23u) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); + goto exit; } - v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - do { - if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { - v_hlen = 0u; - v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); - if (v_length > v_hdist) { - v_length -= v_hdist; - v_hlen = v_hdist; - } else { - v_hlen = v_length; - v_length = 0u; - } - v_hdist += v_hdist_adjustment; - if (self->private_impl.f_history_index < v_hdist) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); - goto exit; - } - wuffs_base__io_writer__limited_copy_u32_from_slice( - &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); - if (v_length == 0u) { - goto label__loop__continue; - } - if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); - goto exit; - } - } - if ((v_dist_minus_1 + 1u) >= 8u) { - wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else { - wuffs_base__io_writer__limited_copy_u32_from_history_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } - } while (0); - } - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); + v_run = ((((uint32_t)(v_child)) & 3u) << v_run_shift); + v_run_shift += 1u; + v_i = v_block_size; + v_j = (v_run + v_block_size); + if (v_j > self->private_impl.f_max_incl_block_size) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); goto exit; } + v_block_size = v_j; + v_mtft0 = ((uint32_t)(self->private_data.f_mtft[0u])); + self->private_data.f_letter_counts[v_mtft0] += v_run; + while (v_i < v_j) { + self->private_data.f_bwt[v_i] = v_mtft0; + v_i += 1u; + } } - self->private_impl.f_bits = (v_bits & ((((uint32_t)(1u)) << v_n_bits) - 1u)); + self->private_impl.f_bits = v_bits; self->private_impl.f_n_bits = v_n_bits; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } + self->private_impl.f_block_size = v_block_size; + self->private_impl.f_decode_huffman_which = v_which; + self->private_impl.f_decode_huffman_ticks = v_ticks; + self->private_impl.f_decode_huffman_section = v_section; + self->private_impl.f_decode_huffman_run_shift = v_run_shift; + status = wuffs_base__make_status(NULL); + goto ok; + + ok: goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -35863,52 +35554,25 @@ wuffs_deflate__decoder__decode_huffman_fast32( return status; } -// -------- func deflate.decoder.decode_huffman_fast64 +// -------- func bzip2.decoder.decode_huffman_slow WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast64( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_bzip2__decoder__decode_huffman_slow( + wuffs_bzip2__decoder* self, wuffs_base__io_buffer* a_src) { - return (*self->private_impl.choosy_decode_huffman_fast64)(self, a_dst, a_src); -} + wuffs_base__status status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_table_entry = 0; - uint32_t v_table_entry_n_bits = 0; - uint64_t v_lmask = 0; - uint64_t v_dmask = 0; - uint32_t v_redir_top = 0; - uint32_t v_redir_mask = 0; - uint32_t v_length = 0; - uint32_t v_dist_minus_1 = 0; - uint32_t v_hlen = 0; - uint32_t v_hdist = 0; - uint32_t v_hdist_adjustment = 0; + uint8_t v_c8 = 0; + uint32_t v_node_index = 0; + uint16_t v_child = 0; + uint32_t v_child_ff = 0; + uint32_t v_i = 0; + uint32_t v_j = 0; + uint32_t v_output = 0; + uint32_t v_run = 0; + uint32_t v_mtft0 = 0; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -35920,160 +35584,101 @@ wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( io2_a_src = io0_a_src + a_src->meta.wi; } - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - v_bits = ((uint64_t)(self->private_impl.f_bits)); - v_n_bits = self->private_impl.f_n_bits; - v_lmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); - v_dmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); - if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { - status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); - goto exit; + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_slow; + if (coro_susp_point) { + v_node_index = self->private_data.s_decode_huffman_slow.v_node_index; } - v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); - label__loop__continue:; - while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 8u)) { - v_bits |= ((uint64_t)(wuffs_base__peek_u64le__no_bounds_check(iop_a_src) << (v_n_bits & 63u))); - iop_a_src += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while ( ! (self->private_impl.p_decode_huffman_slow != 0)) { + if (self->private_impl.f_decode_huffman_ticks > 0u) { + self->private_impl.f_decode_huffman_ticks -= 1u; } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - v_length = (((v_table_entry >> 8u) & 255u) + 3u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - v_length = (((v_length + 253u + ((uint32_t)(((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 255u) + 3u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } - v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 28u) == 1u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } - if ((v_table_entry >> 24u) != 64u) { - if ((v_table_entry >> 24u) == 8u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; + self->private_impl.f_decode_huffman_ticks = 49u; + self->private_impl.f_decode_huffman_section += 1u; + if (self->private_impl.f_decode_huffman_section >= self->private_impl.f_num_sections) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_number_of_sections); + goto exit; + } + self->private_impl.f_decode_huffman_which = WUFFS_BZIP2__CLAMP_TO_5[((uint8_t)(self->private_data.f_huffman_selectors[(self->private_impl.f_decode_huffman_section & 32767u)] & 7u))]; } - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - v_dist_minus_1 = ((v_dist_minus_1 + ((uint32_t)(((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 32767u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - do { - if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { - v_hlen = 0u; - v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); - if (v_length > v_hdist) { - v_length -= v_hdist; - v_hlen = v_hdist; - } else { - v_hlen = v_length; - v_length = 0u; + v_node_index = 0u; + while (true) { + if (self->private_impl.f_n_bits <= 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); + self->private_impl.f_n_bits = 8u; } - v_hdist += v_hdist_adjustment; - if (self->private_impl.f_history_index < v_hdist) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); - goto exit; + v_child = self->private_data.f_huffman_trees[self->private_impl.f_decode_huffman_which][v_node_index][(self->private_impl.f_bits >> 31u)]; + self->private_impl.f_bits <<= 1u; + self->private_impl.f_n_bits -= 1u; + if (v_child < 257u) { + v_node_index = ((uint32_t)(v_child)); + continue; + } else if (v_child < 768u) { + v_child_ff = ((uint32_t)(((uint16_t)(v_child & 255u)))); + v_output = ((uint32_t)(self->private_data.f_mtft[v_child_ff])); + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_mtft, 1, (1u + v_child_ff)), wuffs_base__make_slice_u8(self->private_data.f_mtft, v_child_ff)); + self->private_data.f_mtft[0u] = ((uint8_t)(v_output)); + self->private_data.f_letter_counts[v_output] += 1u; + self->private_data.f_bwt[self->private_impl.f_block_size] = v_output; + if (self->private_impl.f_block_size >= self->private_impl.f_max_incl_block_size) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); + goto exit; + } + self->private_impl.f_block_size += 1u; + self->private_impl.f_decode_huffman_run_shift = 0u; + break; + } else if (v_child == 768u) { + self->private_impl.f_decode_huffman_finished = true; + goto label__outer__break; } - wuffs_base__io_writer__limited_copy_u32_from_slice( - &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); - if (v_length == 0u) { - goto label__loop__continue; + if (self->private_impl.f_decode_huffman_run_shift >= 23u) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); + goto exit; } - if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); + v_run = ((((uint32_t)(v_child)) & 3u) << self->private_impl.f_decode_huffman_run_shift); + self->private_impl.f_decode_huffman_run_shift += 1u; + v_i = self->private_impl.f_block_size; + v_j = (v_run + self->private_impl.f_block_size); + if (v_j > self->private_impl.f_max_incl_block_size) { + status = wuffs_base__make_status(wuffs_bzip2__error__bad_block_length); goto exit; } + self->private_impl.f_block_size = v_j; + v_mtft0 = ((uint32_t)(self->private_data.f_mtft[0u])); + self->private_data.f_letter_counts[v_mtft0] += v_run; + while (v_i < v_j) { + self->private_data.f_bwt[v_i] = v_mtft0; + v_i += 1u; + } + break; } - if ((v_dist_minus_1 + 1u) >= 8u) { - wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else if ((v_dist_minus_1 + 1u) == 1u) { - wuffs_base__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else { - wuffs_base__io_writer__limited_copy_u32_from_history_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } - } while (0); - } - if (v_n_bits > 63u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); - goto exit; } - } - self->private_impl.f_bits = ((uint32_t)((v_bits & ((((uint64_t)(1u)) << v_n_bits) - 1u)))); - self->private_impl.f_n_bits = v_n_bits; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + label__outer__break:; + + goto ok; + ok: + self->private_impl.p_decode_huffman_slow = 0; goto exit; } + + goto suspend; + suspend: + self->private_impl.p_decode_huffman_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_huffman_slow.v_node_index = v_node_index; + goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -36081,40 +35686,229 @@ wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( return status; } -// -------- func deflate.decoder.decode_huffman_slow +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BZIP2) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CBOR) + +// ---------------- Status Codes Implementations + +const char wuffs_cbor__error__bad_input[] = "#cbor: bad input"; +const char wuffs_cbor__error__unsupported_recursion_depth[] = "#cbor: unsupported recursion depth"; +const char wuffs_cbor__error__internal_error_inconsistent_i_o[] = "#cbor: internal error: inconsistent I/O"; +const char wuffs_cbor__error__internal_error_inconsistent_token_length[] = "#cbor: internal error: inconsistent token length"; + +// ---------------- Private Consts + +static const uint32_t +WUFFS_CBOR__LITERALS[4] WUFFS_BASE__POTENTIALLY_UNUSED = { + 8388612u, 8388616u, 8388610u, 8388609u, +}; + +static const uint8_t +WUFFS_CBOR__TOKEN_LENGTHS[32] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, + 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, + 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, + 2u, 3u, 5u, 9u, 0u, 0u, 0u, 1u, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +// ---------------- VTables + +const wuffs_base__token_decoder__func_ptrs +wuffs_cbor__decoder__func_ptrs_for__wuffs_base__token_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__token_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_cbor__decoder__decode_tokens), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_cbor__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_cbor__decoder__set_quirk), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_cbor__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_cbor__decoder__initialize( + wuffs_cbor__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__token_decoder.vtable_name = + wuffs_base__token_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__token_decoder.function_pointers = + (const void*)(&wuffs_cbor__decoder__func_ptrs_for__wuffs_base__token_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_cbor__decoder* +wuffs_cbor__decoder__alloc(void) { + wuffs_cbor__decoder* x = + (wuffs_cbor__decoder*)(calloc(1, sizeof(wuffs_cbor__decoder))); + if (!x) { + return NULL; + } + if (wuffs_cbor__decoder__initialize( + x, sizeof(wuffs_cbor__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_cbor__decoder(void) { + return sizeof(wuffs_cbor__decoder); +} + +// ---------------- Function Implementations + +// -------- func cbor.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_slow( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src) { +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_cbor__decoder__get_quirk( + const wuffs_cbor__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func cbor.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_cbor__decoder__set_quirk( + wuffs_cbor__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func cbor.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_cbor__decoder__workbuf_len( + const wuffs_cbor__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__empty_range_ii_u64(); +} + +// -------- func cbor.decoder.decode_tokens + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_cbor__decoder__decode_tokens( + wuffs_cbor__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_table_entry = 0; - uint32_t v_table_entry_n_bits = 0; - uint32_t v_lmask = 0; - uint32_t v_dmask = 0; - uint32_t v_b0 = 0; - uint32_t v_redir_top = 0; - uint32_t v_redir_mask = 0; - uint32_t v_b1 = 0; - uint32_t v_length = 0; - uint32_t v_b2 = 0; - uint32_t v_b3 = 0; - uint32_t v_b4 = 0; - uint32_t v_dist_minus_1 = 0; - uint32_t v_b5 = 0; - uint32_t v_n_copied = 0; - uint32_t v_hlen = 0; - uint32_t v_hdist = 0; + uint64_t v_string_length = 0; + uint64_t v_n64 = 0; + uint32_t v_depth = 0; + uint32_t v_stack_byte = 0; + uint32_t v_stack_bit = 0; + uint32_t v_stack_val = 0; + uint32_t v_token_length = 0; + uint32_t v_vminor = 0; + uint32_t v_vminor_alt = 0; + uint32_t v_continued = 0; + uint8_t v_c8 = 0; + uint8_t v_c_major = 0; + uint8_t v_c_minor = 0; + bool v_tagged = false; + uint8_t v_indefinite_string_major_type = 0; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; if (a_dst && a_dst->data.ptr) { io0_a_dst = a_dst->data.ptr; io1_a_dst = io0_a_dst + a_dst->meta.wi; @@ -36135,269 +35929,513 @@ wuffs_deflate__decoder__decode_huffman_slow( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_huffman_slow[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_tokens; if (coro_susp_point) { - v_bits = self->private_data.s_decode_huffman_slow[0].v_bits; - v_n_bits = self->private_data.s_decode_huffman_slow[0].v_n_bits; - v_table_entry_n_bits = self->private_data.s_decode_huffman_slow[0].v_table_entry_n_bits; - v_lmask = self->private_data.s_decode_huffman_slow[0].v_lmask; - v_dmask = self->private_data.s_decode_huffman_slow[0].v_dmask; - v_redir_top = self->private_data.s_decode_huffman_slow[0].v_redir_top; - v_redir_mask = self->private_data.s_decode_huffman_slow[0].v_redir_mask; - v_length = self->private_data.s_decode_huffman_slow[0].v_length; - v_dist_minus_1 = self->private_data.s_decode_huffman_slow[0].v_dist_minus_1; + v_string_length = self->private_data.s_decode_tokens.v_string_length; + v_depth = self->private_data.s_decode_tokens.v_depth; + v_tagged = self->private_data.s_decode_tokens.v_tagged; + v_indefinite_string_major_type = self->private_data.s_decode_tokens.v_indefinite_string_major_type; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; + if (self->private_impl.f_end_of_data) { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } - v_bits = self->private_impl.f_bits; - v_n_bits = self->private_impl.f_n_bits; - v_lmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); - v_dmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); - label__loop__continue:; - while ( ! (self->private_impl.p_decode_huffman_slow[0] != 0)) { + label__outer__continue:; + while (true) { while (true) { - v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + do { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + goto label__outer__continue; } - uint32_t t_0 = *iop_a_src++; - v_b0 = t_0; - } - v_bits |= (v_b0 << v_n_bits); - v_n_bits += 8u; - } - if ((v_table_entry >> 31u) != 0u) { - self->private_data.s_decode_huffman_slow[0].scratch = ((uint8_t)((v_table_entry >> 8u))); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (iop_a_dst == io2_a_dst) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - goto suspend; - } - *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow[0].scratch)); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - while (true) { - v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_cbor__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + goto label__outer__continue; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if ((v_indefinite_string_major_type != 0u) && (v_indefinite_string_major_type != ((uint8_t)(v_c8 >> 5u)))) { + if (v_c8 != 255u) { + status = wuffs_base__make_status(wuffs_cbor__error__bad_input); + goto exit; } - uint32_t t_1 = *iop_a_src++; - v_b1 = t_1; + v_vminor = 4194560u; + if (v_indefinite_string_major_type == 3u) { + v_vminor |= 19u; + } + v_indefinite_string_major_type = 0u; + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; } - v_bits |= (v_b1 << v_n_bits); - v_n_bits += 8u; - } - if ((v_table_entry >> 31u) != 0u) { - self->private_data.s_decode_huffman_slow[0].scratch = ((uint8_t)((v_table_entry >> 8u))); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (iop_a_dst == io2_a_dst) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - goto suspend; + iop_a_src += 1u; + v_c_major = ((uint8_t)(((uint8_t)(v_c8 >> 5u)))); + v_c_minor = ((uint8_t)(v_c8 & 31u)); + if (v_c_minor < 24u) { + v_string_length = ((uint64_t)(v_c_minor)); + } else { + while (true) { + if (v_c_minor == 24u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= 1u) { + v_string_length = ((uint64_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))); + iop_a_src += 1u; + break; + } + } else if (v_c_minor == 25u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= 2u) { + v_string_length = ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2u; + break; + } + } else if (v_c_minor == 26u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { + v_string_length = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4u; + break; + } + } else if (v_c_minor == 27u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= 8u) { + v_string_length = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8u; + break; + } + } else { + v_string_length = 0u; + break; + } + if (iop_a_src > io1_a_src) { + iop_a_src--; + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_cbor__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + goto label__outer__continue; + } + status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); + goto exit; + } } - *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow[0].scratch)); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + if (v_c_major == 0u) { + if (v_c_minor < 26u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((14680064u | ((uint32_t)((v_string_length & 65535u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } else if (v_c_minor < 28u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((14680064u | ((uint32_t)((v_string_length >> 46u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + *iop_a_dst++ = wuffs_base__make_token( + (~(v_string_length & 70368744177663u) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } + } else if (v_c_major == 1u) { + if (v_c_minor < 26u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((12582912u | (2097151u - ((uint32_t)((v_string_length & 65535u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } else if (v_c_minor < 28u) { + if (v_string_length < 9223372036854775808u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((12582912u | (2097151u - ((uint32_t)((v_string_length >> 46u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + *iop_a_dst++ = wuffs_base__make_token( + (~((18446744073709551615u - v_string_length) & 70368744177663u) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } else { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)(16777216u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(9u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + goto label__goto_parsed_a_leaf_value__break; + } + } else if (v_c_major == 2u) { + if (v_c_minor < 28u) { + if (v_string_length == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194560u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194560u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } else if (v_c_minor == 31u) { + if (v_indefinite_string_major_type != 0u) { + break; + } + v_indefinite_string_major_type = 2u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194560u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__outer__continue; + } else { + break; + } + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + continue; + } + v_n64 = wuffs_base__u64__min(v_string_length, ((uint64_t)(io2_a_src - iop_a_src))); + v_token_length = ((uint32_t)((v_n64 & 65535u))); + if (v_n64 > 65535u) { + v_token_length = 65535u; + } else if (v_token_length <= 0u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_cbor__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + continue; + } + if (((uint64_t)(io2_a_src - iop_a_src)) < ((uint64_t)(v_token_length))) { + status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_token_length); + goto exit; + } + v_string_length -= ((uint64_t)(v_token_length)); + v_continued = 0u; + if ((v_string_length > 0u) || (v_indefinite_string_major_type > 0u)) { + v_continued = 1u; + } + iop_a_src += v_token_length; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194816u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_continued)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_token_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (v_string_length > 0u) { + continue; + } else if (v_indefinite_string_major_type > 0u) { + goto label__outer__continue; + } + goto label__goto_parsed_a_leaf_value__break; + } + } else if (v_c_major == 3u) { + if (v_c_minor < 28u) { + if (v_string_length == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } else if (v_c_minor == 31u) { + if (v_indefinite_string_major_type != 0u) { + break; + } + v_indefinite_string_major_type = 3u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__outer__continue; + } else { + break; + } + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + continue; + } + v_n64 = wuffs_base__u64__min(v_string_length, 65535u); + v_n64 = ((uint64_t)(wuffs_base__utf_8__longest_valid_prefix(iop_a_src, + ((size_t)(wuffs_base__u64__min(((uint64_t)(io2_a_src - iop_a_src)), v_n64)))))); + v_token_length = ((uint32_t)((v_n64 & 65535u))); + if (v_token_length <= 0u) { + if ((a_src && a_src->meta.closed) || (((uint64_t)(io2_a_src - iop_a_src)) >= 4u)) { + status = wuffs_base__make_status(wuffs_cbor__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + continue; + } + if (((uint64_t)(io2_a_src - iop_a_src)) < ((uint64_t)(v_token_length))) { + status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_token_length); + goto exit; + } + v_string_length -= ((uint64_t)(v_token_length)); + v_continued = 0u; + if ((v_string_length > 0u) || (v_indefinite_string_major_type > 0u)) { + v_continued = 1u; + } + iop_a_src += v_token_length; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_continued)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_token_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (v_string_length > 0u) { + continue; + } else if (v_indefinite_string_major_type > 0u) { + goto label__outer__continue; + } + goto label__goto_parsed_a_leaf_value__break; + } + } else if (v_c_major == 4u) { + if (WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor] == 0u) { + break; + } else if (v_depth >= 1024u) { + v_token_length = ((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])); + while ((v_token_length > 0u) && (iop_a_src > io1_a_src)) { + iop_a_src--; + v_token_length -= 1u; + } + status = wuffs_base__make_status(wuffs_cbor__error__unsupported_recursion_depth); + goto exit; + } + v_vminor = 2105361u; + v_vminor_alt = 2101282u; + if (v_depth > 0u) { + v_stack_byte = ((v_depth - 1u) / 16u); + v_stack_bit = (((v_depth - 1u) & 15u) * 2u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + v_vminor = 2105377u; + v_vminor_alt = 2105378u; + } else { + v_vminor = 2105409u; + v_vminor_alt = 2113570u; + } + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (v_c_minor == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } + v_stack_byte = (v_depth / 16u); + v_stack_bit = ((v_depth & 15u) * 2u); + self->private_data.f_stack[v_stack_byte] &= (4294967295u ^ (((uint32_t)(3u)) << v_stack_bit)); + self->private_data.f_container_num_remaining[v_depth] = v_string_length; + v_depth += 1u; + v_tagged = false; + goto label__outer__continue; + } else if (v_c_major == 5u) { + if (WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor] == 0u) { + break; + } else if (v_depth >= 1024u) { + v_token_length = ((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])); + while ((v_token_length > 0u) && (iop_a_src > io1_a_src)) { + iop_a_src--; + v_token_length -= 1u; + } + status = wuffs_base__make_status(wuffs_cbor__error__unsupported_recursion_depth); + goto exit; + } + v_vminor = 2113553u; + v_vminor_alt = 2101314u; + if (v_depth > 0u) { + v_stack_byte = ((v_depth - 1u) / 16u); + v_stack_bit = (((v_depth - 1u) & 15u) * 2u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + v_vminor = 2113569u; + v_vminor_alt = 2105410u; + } else { + v_vminor = 2113601u; + v_vminor_alt = 2113602u; + } + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (v_c_minor == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } + v_stack_byte = (v_depth / 16u); + v_stack_bit = ((v_depth & 15u) * 2u); + self->private_data.f_stack[v_stack_byte] |= (((uint32_t)(3u)) << v_stack_bit); + self->private_data.f_container_num_remaining[v_depth] = v_string_length; + v_depth += 1u; + v_tagged = false; + goto label__outer__continue; + } else if (v_c_major == 6u) { + if (v_c_minor >= 28u) { + break; + } + if (v_string_length < 262144u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)((4194304u | ((uint32_t)(v_string_length))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } else { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)((4194304u | ((uint32_t)((v_string_length >> 46u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + *iop_a_dst++ = wuffs_base__make_token( + (~(v_string_length & 70368744177663u) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + v_tagged = true; + goto label__outer__continue; + } else if (v_c_major == 7u) { + if (v_c_minor < 20u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)((8388608u | ((uint32_t)((v_string_length & 255u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } else if (v_c_minor < 24u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(WUFFS_CBOR__LITERALS[((uint8_t)(v_c_minor & 3u))])) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } else if (v_c_minor == 24u) { + if (v_string_length < 24u) { + if ( ! (iop_a_src > io1_a_src)) { + status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); + goto exit; + } + iop_a_src--; + break; + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)((8388608u | ((uint32_t)((v_string_length & 255u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } else if (v_c_minor < 28u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(10490113u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } else if (v_c_minor == 31u) { + if (v_tagged || (v_depth <= 0u)) { + break; + } + v_depth -= 1u; + if (self->private_data.f_container_num_remaining[v_depth] != 0u) { + break; + } + v_stack_byte = (v_depth / 16u); + v_stack_bit = ((v_depth & 15u) * 2u); + v_stack_val = (3u & (self->private_data.f_stack[v_stack_byte] >> v_stack_bit)); + if (v_stack_val == 1u) { + break; + } + if (v_stack_val != 3u) { + v_vminor_alt = 2097186u; + } else { + v_vminor_alt = 2097218u; + } + if (v_depth <= 0u) { + v_vminor_alt |= 4096u; + } else { + v_stack_byte = ((v_depth - 1u) / 16u); + v_stack_bit = (((v_depth - 1u) & 15u) * 2u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + v_vminor_alt |= 8192u; + } else { + v_vminor_alt |= 16384u; + } + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__goto_parsed_a_leaf_value__break; + } + } + } while (0); + if (iop_a_src > io1_a_src) { + iop_a_src--; + status = wuffs_base__make_status(wuffs_cbor__error__bad_input); goto exit; } - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); goto exit; } - v_length = (((v_table_entry >> 8u) & 255u) + 3u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - while (v_n_bits < v_table_entry_n_bits) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_2 = *iop_a_src++; - v_b2 = t_2; - } - v_bits |= (v_b2 << v_n_bits); - v_n_bits += 8u; + label__goto_parsed_a_leaf_value__break:; + v_tagged = false; + while (v_depth > 0u) { + v_stack_byte = ((v_depth - 1u) / 16u); + v_stack_bit = (((v_depth - 1u) & 15u) * 2u); + self->private_data.f_stack[v_stack_byte] ^= (((uint32_t)(1u)) << (v_stack_bit + 1u)); + if (1u == (3u & (self->private_data.f_stack[v_stack_byte] >> v_stack_bit))) { + goto label__outer__continue; } - v_length = (((v_length + 253u + ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255u) + 3u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } - while (true) { - v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; + if (self->private_data.f_container_num_remaining[(v_depth - 1u)] <= 0u) { + goto label__outer__continue; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_3 = *iop_a_src++; - v_b3 = t_3; - } - v_bits |= (v_b3 << v_n_bits); - v_n_bits += 8u; - } - if ((v_table_entry >> 28u) == 1u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - while (true) { - v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_4 = *iop_a_src++; - v_b4 = t_4; - } - v_bits |= (v_b4 << v_n_bits); - v_n_bits += 8u; + self->private_data.f_container_num_remaining[(v_depth - 1u)] -= 1u; + if (self->private_data.f_container_num_remaining[(v_depth - 1u)] > 0u) { + goto label__outer__continue; } - } - if ((v_table_entry >> 24u) != 64u) { - if ((v_table_entry >> 24u) == 8u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + continue; } - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - while (v_n_bits < v_table_entry_n_bits) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_5 = *iop_a_src++; - v_b5 = t_5; - } - v_bits |= (v_b5 << v_n_bits); - v_n_bits += 8u; + v_depth -= 1u; + v_stack_byte = (v_depth / 16u); + v_stack_bit = ((v_depth & 15u) * 2u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + v_vminor_alt = 2097186u; + } else { + v_vminor_alt = 2097218u; } - v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } - while (true) { - if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { - v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); - if (v_hdist < v_length) { - v_hlen = v_hdist; + if (v_depth <= 0u) { + v_vminor_alt |= 4096u; + } else { + v_stack_byte = ((v_depth - 1u) / 16u); + v_stack_bit = (((v_depth - 1u) & 15u) * 2u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + v_vminor_alt |= 8192u; } else { - v_hlen = v_length; - } - v_hdist += ((uint32_t)(((uint64_t)(self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u))))); - if (self->private_impl.f_history_index < v_hdist) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); - goto exit; - } - v_n_copied = wuffs_base__io_writer__limited_copy_u32_from_slice( - &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); - if (v_n_copied < v_hlen) { - v_length -= v_n_copied; - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - continue; - } - v_length -= v_hlen; - if (v_length == 0u) { - goto label__loop__continue; + v_vminor_alt |= 16384u; } } - v_n_copied = wuffs_base__io_writer__limited_copy_u32_from_history( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - if (v_length <= v_n_copied) { - goto label__loop__continue; - } - v_length -= v_n_copied; - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); } + break; } - self->private_impl.f_bits = v_bits; - self->private_impl.f_n_bits = v_n_bits; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } + self->private_impl.f_end_of_data = true; ok: - self->private_impl.p_decode_huffman_slow[0] = 0; + self->private_impl.p_decode_tokens = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_huffman_slow[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_huffman_slow[0].v_bits = v_bits; - self->private_data.s_decode_huffman_slow[0].v_n_bits = v_n_bits; - self->private_data.s_decode_huffman_slow[0].v_table_entry_n_bits = v_table_entry_n_bits; - self->private_data.s_decode_huffman_slow[0].v_lmask = v_lmask; - self->private_data.s_decode_huffman_slow[0].v_dmask = v_dmask; - self->private_data.s_decode_huffman_slow[0].v_redir_top = v_redir_top; - self->private_data.s_decode_huffman_slow[0].v_redir_mask = v_redir_mask; - self->private_data.s_decode_huffman_slow[0].v_length = v_length; - self->private_data.s_decode_huffman_slow[0].v_dist_minus_1 = v_dist_minus_1; + self->private_impl.p_decode_tokens = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_data.s_decode_tokens.v_string_length = v_string_length; + self->private_data.s_decode_tokens.v_depth = v_depth; + self->private_data.s_decode_tokens.v_tagged = v_tagged; + self->private_data.s_decode_tokens.v_indefinite_string_major_type = v_indefinite_string_major_type; goto exit; exit: @@ -36408,243 +36446,607 @@ wuffs_deflate__decoder__decode_huffman_slow( a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CBOR) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC32) // ---------------- Status Codes Implementations -const char wuffs_gif__error__bad_lzw_code[] = "#gif: bad LZW code"; -const char wuffs_gif__error__bad_extension_label[] = "#gif: bad extension label"; -const char wuffs_gif__error__bad_frame_size[] = "#gif: bad frame size"; -const char wuffs_gif__error__bad_graphic_control[] = "#gif: bad graphic control"; -const char wuffs_gif__error__bad_header[] = "#gif: bad header"; -const char wuffs_gif__error__bad_literal_width[] = "#gif: bad literal width"; -const char wuffs_gif__error__bad_palette[] = "#gif: bad palette"; -const char wuffs_gif__error__truncated_input[] = "#gif: truncated input"; -const char wuffs_gif__error__internal_error_inconsistent_i_o[] = "#gif: internal error: inconsistent I/O"; - // ---------------- Private Consts static const uint32_t -WUFFS_GIF__INTERLACE_START[5] WUFFS_BASE__POTENTIALLY_UNUSED = { - 4294967295, 1, 2, 4, 0, -}; - -static const uint8_t -WUFFS_GIF__INTERLACE_DELTA[5] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1, 2, 4, 8, 8, -}; - -static const uint8_t -WUFFS_GIF__INTERLACE_COUNT[5] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 1, 2, 4, 8, -}; - -static const uint8_t -WUFFS_GIF__ANIMEXTS1DOT0[11] WUFFS_BASE__POTENTIALLY_UNUSED = { - 65, 78, 73, 77, 69, 88, 84, 83, - 49, 46, 48, -}; - -static const uint8_t -WUFFS_GIF__NETSCAPE2DOT0[11] WUFFS_BASE__POTENTIALLY_UNUSED = { - 78, 69, 84, 83, 67, 65, 80, 69, - 50, 46, 48, -}; - -static const uint8_t -WUFFS_GIF__ICCRGBG1012[11] WUFFS_BASE__POTENTIALLY_UNUSED = { - 73, 67, 67, 82, 71, 66, 71, 49, - 48, 49, 50, -}; - -static const uint8_t -WUFFS_GIF__XMPDATAXMP[11] WUFFS_BASE__POTENTIALLY_UNUSED = { - 88, 77, 80, 32, 68, 97, 116, 97, - 88, 77, 80, +WUFFS_CRC32__IEEE_TABLE[16][256] WUFFS_BASE__POTENTIALLY_UNUSED = { + { + 0u, 1996959894u, 3993919788u, 2567524794u, 124634137u, 1886057615u, 3915621685u, 2657392035u, + 249268274u, 2044508324u, 3772115230u, 2547177864u, 162941995u, 2125561021u, 3887607047u, 2428444049u, + 498536548u, 1789927666u, 4089016648u, 2227061214u, 450548861u, 1843258603u, 4107580753u, 2211677639u, + 325883990u, 1684777152u, 4251122042u, 2321926636u, 335633487u, 1661365465u, 4195302755u, 2366115317u, + 997073096u, 1281953886u, 3579855332u, 2724688242u, 1006888145u, 1258607687u, 3524101629u, 2768942443u, + 901097722u, 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588238637u, + 1921194766u, 3706423967u, 4112727661u, 1531686908u, 2796705673u, 148555288u, 554857194u, 2407195515u, + 26248257u, 2952271312u, 2251333922u, 676868275u, 3584149702u, 2076793175u, 1375858085u, 4234771508u, + 2493785488u, 986493953u, 319029491u, 3178008930u, 1083533591u, 4009621638u, 3342158964u, 1767759333u, + 3887577823u, 1239362382u, 1612160956u, 3464433197u, 864482904u, 2649647049u, 3022443323u, 441336490u, + 1706844275u, 3419730402u, 3793503504u, 1282724993u, 2978819316u, 535149925u, 908921239u, 2554697734u, + 380632892u, 3100077741u, 2433735263u, 1063734222u, 3265180603u, 1828069930u, 1161729752u, 3948283721u, + 2207997677u, 770953084u, 71007118u, 2857626143u, 1470763626u, 4190274555u, 3490330377u, 2120394392u, + 4035494306u, 1591758899u, 1999168705u, 3644880208u, 616140069u, 2328960180u, 2736367686u, 225524183u, + }, }; -#define WUFFS_GIF__QUIRKS_BASE 1041635328 - -#define WUFFS_GIF__QUIRKS_COUNT 7 - // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__do_decode_image_config( - wuffs_gif__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__do_tell_me_more( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__do_decode_frame_config( - wuffs_gif__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__skip_frame( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__do_decode_frame( - wuffs_gif__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); - WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_gif__decoder__reset_gc( - wuffs_gif__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_up_to_id_part1( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_header( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_lsd( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_extension( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__skip_blocks( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_ae( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_gc( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_id_part0( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_id_part1( - wuffs_gif__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__decode_id_part2( - wuffs_gif__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); +wuffs_crc32__ieee_hasher__up( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x); WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__copy_to_image_buffer( - wuffs_gif__decoder* self, - wuffs_base__pixel_buffer* a_pb, - wuffs_base__slice_u8 a_src); +static wuffs_base__empty_struct +wuffs_crc32__ieee_hasher__up__choosy_default( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x); +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_gif__decoder__lzw_init( - wuffs_gif__decoder* self); +wuffs_crc32__ieee_hasher__up_arm_crc32( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_gif__decoder__lzw_read_from( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src); +wuffs_crc32__ieee_hasher__up_x86_sse42( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) // ---------------- VTables -const wuffs_base__image_decoder__func_ptrs -wuffs_gif__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_gif__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_gif__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_gif__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_gif__decoder__frame_dirty_rect), +const wuffs_base__hasher_u32__func_ptrs +wuffs_crc32__ieee_hasher__func_ptrs_for__wuffs_base__hasher_u32 = { + (uint32_t(*)(const void*))(&wuffs_crc32__ieee_hasher__checksum_u32), (uint64_t(*)(const void*, - uint32_t))(&wuffs_gif__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_gif__decoder__history_retain_length), - (uint32_t(*)(const void*))(&wuffs_gif__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_gif__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_gif__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_gif__decoder__restart_frame), + uint32_t))(&wuffs_crc32__ieee_hasher__get_quirk), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_gif__decoder__set_quirk), + uint64_t))(&wuffs_crc32__ieee_hasher__set_quirk), (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_gif__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_gif__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_gif__decoder__workbuf_len), + wuffs_base__slice_u8))(&wuffs_crc32__ieee_hasher__update), + (uint32_t(*)(void*, + wuffs_base__slice_u8))(&wuffs_crc32__ieee_hasher__update_u32), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_gif__decoder__initialize( - wuffs_gif__decoder* self, +wuffs_crc32__ieee_hasher__initialize( + wuffs_crc32__ieee_hasher* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -36681,23 +37083,25 @@ wuffs_gif__decoder__initialize( } } + self->private_impl.choosy_up = &wuffs_crc32__ieee_hasher__up__choosy_default; + self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_gif__decoder__func_ptrs_for__wuffs_base__image_decoder); + self->private_impl.vtable_for__wuffs_base__hasher_u32.vtable_name = + wuffs_base__hasher_u32__vtable_name; + self->private_impl.vtable_for__wuffs_base__hasher_u32.function_pointers = + (const void*)(&wuffs_crc32__ieee_hasher__func_ptrs_for__wuffs_base__hasher_u32); return wuffs_base__make_status(NULL); } -wuffs_gif__decoder* -wuffs_gif__decoder__alloc(void) { - wuffs_gif__decoder* x = - (wuffs_gif__decoder*)(calloc(sizeof(wuffs_gif__decoder), 1)); +wuffs_crc32__ieee_hasher* +wuffs_crc32__ieee_hasher__alloc(void) { + wuffs_crc32__ieee_hasher* x = + (wuffs_crc32__ieee_hasher*)(calloc(1, sizeof(wuffs_crc32__ieee_hasher))); if (!x) { return NULL; } - if (wuffs_gif__decoder__initialize( - x, sizeof(wuffs_gif__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + if (wuffs_crc32__ieee_hasher__initialize( + x, sizeof(wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { free(x); return NULL; } @@ -36705,18 +37109,18 @@ wuffs_gif__decoder__alloc(void) { } size_t -sizeof__wuffs_gif__decoder(void) { - return sizeof(wuffs_gif__decoder); +sizeof__wuffs_crc32__ieee_hasher(void) { + return sizeof(wuffs_crc32__ieee_hasher); } // ---------------- Function Implementations -// -------- func gif.decoder.get_quirk +// -------- func crc32.ieee_hasher.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_gif__decoder__get_quirk( - const wuffs_gif__decoder* self, +wuffs_crc32__ieee_hasher__get_quirk( + const wuffs_crc32__ieee_hasher* self, uint32_t a_key) { if (!self) { return 0; @@ -36726,25 +37130,15 @@ wuffs_gif__decoder__get_quirk( return 0; } - uint32_t v_key = 0; - - if (a_key >= 1041635328u) { - v_key = (a_key - 1041635328u); - if (v_key < 7u) { - if (self->private_impl.f_quirks[v_key]) { - return 1u; - } - } - } return 0u; } -// -------- func gif.decoder.set_quirk +// -------- func crc32.ieee_hasher.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_gif__decoder__set_quirk( - wuffs_gif__decoder* self, +wuffs_crc32__ieee_hasher__set_quirk( + wuffs_crc32__ieee_hasher* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -36757,377 +37151,812 @@ wuffs_gif__decoder__set_quirk( : wuffs_base__error__initialize_not_called); } - if ((self->private_impl.f_call_sequence == 0u) && (a_key >= 1041635328u)) { - a_key -= 1041635328u; - if (a_key < 7u) { - self->private_impl.f_quirks[a_key] = (a_value > 0u); - return wuffs_base__make_status(NULL); - } - } return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func gif.decoder.decode_image_config +// -------- func crc32.ieee_hasher.update WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_gif__decoder__decode_image_config( - wuffs_gif__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_crc32__ieee_hasher__update( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x) { if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); + return wuffs_base__make_empty_struct(); } if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + return wuffs_base__make_empty_struct(); } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_gif__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_gif__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - ok: - self->private_impl.p_decode_image_config[0] = 0; - goto exit; + if (self->private_impl.f_state == 0u) { + self->private_impl.choosy_up = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) + wuffs_base__cpu_arch__have_arm_crc32() ? &wuffs_crc32__ieee_hasher__up_arm_crc32 : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_crc32__ieee_hasher__up_x86_sse42 : +#endif + self->private_impl.choosy_up); } + wuffs_crc32__ieee_hasher__up(self, a_x); + return wuffs_base__make_empty_struct(); +} - goto suspend; - suspend: - self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; +// -------- func crc32.ieee_hasher.update_u32 - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_crc32__ieee_hasher__update_u32( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return 0; } - return status; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return 0; + } + + wuffs_crc32__ieee_hasher__update(self, a_x); + return self->private_impl.f_state; } -// -------- func gif.decoder.do_decode_image_config +// -------- func crc32.ieee_hasher.up WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__do_decode_image_config( - wuffs_gif__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - bool v_ffio = false; +static wuffs_base__empty_struct +wuffs_crc32__ieee_hasher__up( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x) { + return (*self->private_impl.choosy_up)(self, a_x); +} - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc32__ieee_hasher__up__choosy_default( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x) { + uint32_t v_s = 0; + wuffs_base__slice_u8 v_p = {0}; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if ( ! self->private_impl.f_seen_header) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_gif__decoder__decode_header(self, a_src); - if (status.repr) { - goto suspend; - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_gif__decoder__decode_lsd(self, a_src); - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_header = true; - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_gif__decoder__decode_up_to_id_part1(self, a_src); - if (status.repr) { - goto suspend; - } - v_ffio = ! self->private_impl.f_gc_has_transparent_index; - if ( ! self->private_impl.f_quirks[2u]) { - v_ffio = (v_ffio && - (self->private_impl.f_frame_rect_x0 == 0u) && - (self->private_impl.f_frame_rect_y0 == 0u) && - (self->private_impl.f_frame_rect_x1 == self->private_impl.f_width) && - (self->private_impl.f_frame_rect_y1 == self->private_impl.f_height)); - } else if (v_ffio) { - self->private_impl.f_black_color_u32_argb_premul = 4278190080u; - } - if (self->private_impl.f_background_color_u32_argb_premul == 77u) { - self->private_impl.f_background_color_u32_argb_premul = self->private_impl.f_black_color_u32_argb_premul; + v_s = (4294967295u ^ self->private_impl.f_state); + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 16; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32)); + while (v_p.ptr < i_end0_p) { + v_s ^= ((((uint32_t)(v_p.ptr[0u])) << 0u) | + (((uint32_t)(v_p.ptr[1u])) << 8u) | + (((uint32_t)(v_p.ptr[2u])) << 16u) | + (((uint32_t)(v_p.ptr[3u])) << 24u)); + v_s = (WUFFS_CRC32__IEEE_TABLE[0u][v_p.ptr[15u]] ^ + WUFFS_CRC32__IEEE_TABLE[1u][v_p.ptr[14u]] ^ + WUFFS_CRC32__IEEE_TABLE[2u][v_p.ptr[13u]] ^ + WUFFS_CRC32__IEEE_TABLE[3u][v_p.ptr[12u]] ^ + WUFFS_CRC32__IEEE_TABLE[4u][v_p.ptr[11u]] ^ + WUFFS_CRC32__IEEE_TABLE[5u][v_p.ptr[10u]] ^ + WUFFS_CRC32__IEEE_TABLE[6u][v_p.ptr[9u]] ^ + WUFFS_CRC32__IEEE_TABLE[7u][v_p.ptr[8u]] ^ + WUFFS_CRC32__IEEE_TABLE[8u][v_p.ptr[7u]] ^ + WUFFS_CRC32__IEEE_TABLE[9u][v_p.ptr[6u]] ^ + WUFFS_CRC32__IEEE_TABLE[10u][v_p.ptr[5u]] ^ + WUFFS_CRC32__IEEE_TABLE[11u][v_p.ptr[4u]] ^ + WUFFS_CRC32__IEEE_TABLE[12u][(255u & (v_s >> 24u))] ^ + WUFFS_CRC32__IEEE_TABLE[13u][(255u & (v_s >> 16u))] ^ + WUFFS_CRC32__IEEE_TABLE[14u][(255u & (v_s >> 8u))] ^ + WUFFS_CRC32__IEEE_TABLE[15u][(255u & (v_s >> 0u))]); + v_p.ptr += 16; + v_s ^= ((((uint32_t)(v_p.ptr[0u])) << 0u) | + (((uint32_t)(v_p.ptr[1u])) << 8u) | + (((uint32_t)(v_p.ptr[2u])) << 16u) | + (((uint32_t)(v_p.ptr[3u])) << 24u)); + v_s = (WUFFS_CRC32__IEEE_TABLE[0u][v_p.ptr[15u]] ^ + WUFFS_CRC32__IEEE_TABLE[1u][v_p.ptr[14u]] ^ + WUFFS_CRC32__IEEE_TABLE[2u][v_p.ptr[13u]] ^ + WUFFS_CRC32__IEEE_TABLE[3u][v_p.ptr[12u]] ^ + WUFFS_CRC32__IEEE_TABLE[4u][v_p.ptr[11u]] ^ + WUFFS_CRC32__IEEE_TABLE[5u][v_p.ptr[10u]] ^ + WUFFS_CRC32__IEEE_TABLE[6u][v_p.ptr[9u]] ^ + WUFFS_CRC32__IEEE_TABLE[7u][v_p.ptr[8u]] ^ + WUFFS_CRC32__IEEE_TABLE[8u][v_p.ptr[7u]] ^ + WUFFS_CRC32__IEEE_TABLE[9u][v_p.ptr[6u]] ^ + WUFFS_CRC32__IEEE_TABLE[10u][v_p.ptr[5u]] ^ + WUFFS_CRC32__IEEE_TABLE[11u][v_p.ptr[4u]] ^ + WUFFS_CRC32__IEEE_TABLE[12u][(255u & (v_s >> 24u))] ^ + WUFFS_CRC32__IEEE_TABLE[13u][(255u & (v_s >> 16u))] ^ + WUFFS_CRC32__IEEE_TABLE[14u][(255u & (v_s >> 8u))] ^ + WUFFS_CRC32__IEEE_TABLE[15u][(255u & (v_s >> 0u))]); + v_p.ptr += 16; } - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - 2198077448u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - v_ffio); + v_p.len = 16; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 16) * 16)); + while (v_p.ptr < i_end1_p) { + v_s ^= ((((uint32_t)(v_p.ptr[0u])) << 0u) | + (((uint32_t)(v_p.ptr[1u])) << 8u) | + (((uint32_t)(v_p.ptr[2u])) << 16u) | + (((uint32_t)(v_p.ptr[3u])) << 24u)); + v_s = (WUFFS_CRC32__IEEE_TABLE[0u][v_p.ptr[15u]] ^ + WUFFS_CRC32__IEEE_TABLE[1u][v_p.ptr[14u]] ^ + WUFFS_CRC32__IEEE_TABLE[2u][v_p.ptr[13u]] ^ + WUFFS_CRC32__IEEE_TABLE[3u][v_p.ptr[12u]] ^ + WUFFS_CRC32__IEEE_TABLE[4u][v_p.ptr[11u]] ^ + WUFFS_CRC32__IEEE_TABLE[5u][v_p.ptr[10u]] ^ + WUFFS_CRC32__IEEE_TABLE[6u][v_p.ptr[9u]] ^ + WUFFS_CRC32__IEEE_TABLE[7u][v_p.ptr[8u]] ^ + WUFFS_CRC32__IEEE_TABLE[8u][v_p.ptr[7u]] ^ + WUFFS_CRC32__IEEE_TABLE[9u][v_p.ptr[6u]] ^ + WUFFS_CRC32__IEEE_TABLE[10u][v_p.ptr[5u]] ^ + WUFFS_CRC32__IEEE_TABLE[11u][v_p.ptr[4u]] ^ + WUFFS_CRC32__IEEE_TABLE[12u][(255u & (v_s >> 24u))] ^ + WUFFS_CRC32__IEEE_TABLE[13u][(255u & (v_s >> 16u))] ^ + WUFFS_CRC32__IEEE_TABLE[14u][(255u & (v_s >> 8u))] ^ + WUFFS_CRC32__IEEE_TABLE[15u][(255u & (v_s >> 0u))]); + v_p.ptr += 16; } - if (self->private_impl.f_call_sequence == 0u) { - self->private_impl.f_call_sequence = 32u; + v_p.len = 1; + const uint8_t* i_end2_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end2_p) { + v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); + v_p.ptr += 1; } - - goto ok; - ok: - self->private_impl.p_do_decode_image_config[0] = 0; - goto exit; + v_p.len = 0; } - - goto suspend; - suspend: - self->private_impl.p_do_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - return status; + self->private_impl.f_state = (4294967295u ^ v_s); + return wuffs_base__make_empty_struct(); } -// -------- func gif.decoder.set_report_metadata +// -------- func crc32.ieee_hasher.checksum_u32 WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_gif__decoder__set_report_metadata( - wuffs_gif__decoder* self, - uint32_t a_fourcc, - bool a_report) { +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_crc32__ieee_hasher__checksum_u32( + const wuffs_crc32__ieee_hasher* self) { if (!self) { - return wuffs_base__make_empty_struct(); + return 0; } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - if (a_fourcc == 1229144912u) { - self->private_impl.f_report_metadata_iccp = a_report; - } else if (a_fourcc == 1481461792u) { - self->private_impl.f_report_metadata_xmp = a_report; + return self->private_impl.f_state; +} + +// ‼ WUFFS MULTI-FILE SECTION +arm_crc32 +// -------- func crc32.ieee_hasher.up_arm_crc32 + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc32__ieee_hasher__up_arm_crc32( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x) { + wuffs_base__slice_u8 v_p = {0}; + uint32_t v_s = 0; + + v_s = (4294967295u ^ self->private_impl.f_state); + while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { + v_s = __crc32b(v_s, a_x.ptr[0u]); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); + } + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 8; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 128) * 128)); + while (v_p.ptr < i_end0_p) { + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + } + v_p.len = 8; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8)); + while (v_p.ptr < i_end1_p) { + v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); + v_p.ptr += 8; + } + v_p.len = 1; + const uint8_t* i_end2_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end2_p) { + v_s = __crc32b(v_s, v_p.ptr[0u]); + v_p.ptr += 1; + } + v_p.len = 0; } + self->private_impl.f_state = (4294967295u ^ v_s); return wuffs_base__make_empty_struct(); } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) +// ‼ WUFFS MULTI-FILE SECTION -arm_crc32 -// -------- func gif.decoder.tell_me_more +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func crc32.ieee_hasher.up_x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_gif__decoder__tell_me_more( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); +static wuffs_base__empty_struct +wuffs_crc32__ieee_hasher__up_x86_sse42( + wuffs_crc32__ieee_hasher* self, + wuffs_base__slice_u8 a_x) { + uint32_t v_s = 0; + __m128i v_kk = {0}; + __m128i v_x0 = {0}; + __m128i v_x1 = {0}; + __m128i v_x2 = {0}; + __m128i v_x3 = {0}; + __m128i v_x4 = {0}; + __m128i v_x5 = {0}; + __m128i v_x6 = {0}; + __m128i v_x7 = {0}; + __m128i v_y0 = {0}; + __m128i v_y1 = {0}; + __m128i v_y2 = {0}; + __m128i v_y3 = {0}; + __m128i v_y4 = {0}; + __m128i v_y5 = {0}; + __m128i v_y6 = {0}; + __m128i v_y7 = {0}; + + v_s = (4294967295u ^ self->private_impl.f_state); + while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { + v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ a_x.ptr[0u]))] ^ (v_s >> 8u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); + if (((uint64_t)(a_x.len)) >= 128u) { + v_x0 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)); + v_x1 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); + v_x2 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); + v_x3 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); + v_x4 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 64u)); + v_x5 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 80u)); + v_x6 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 96u)); + v_x7 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 112u)); + v_kk = _mm_set_epi32((int32_t)(0u), (int32_t)(2433674945u), (int32_t)(0u), (int32_t)(872412467u)); + v_x0 = _mm_xor_si128(v_x0, _mm_cvtsi32_si128((int32_t)(v_s))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 128u); + while (((uint64_t)(a_x.len)) >= 128u) { + v_y0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(0u)); + v_x0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(17u)); + v_y1 = _mm_clmulepi64_si128(v_x1, v_kk, (int32_t)(0u)); + v_x1 = _mm_clmulepi64_si128(v_x1, v_kk, (int32_t)(17u)); + v_y2 = _mm_clmulepi64_si128(v_x2, v_kk, (int32_t)(0u)); + v_x2 = _mm_clmulepi64_si128(v_x2, v_kk, (int32_t)(17u)); + v_y3 = _mm_clmulepi64_si128(v_x3, v_kk, (int32_t)(0u)); + v_x3 = _mm_clmulepi64_si128(v_x3, v_kk, (int32_t)(17u)); + v_y4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(0u)); + v_x4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(17u)); + v_y5 = _mm_clmulepi64_si128(v_x5, v_kk, (int32_t)(0u)); + v_x5 = _mm_clmulepi64_si128(v_x5, v_kk, (int32_t)(17u)); + v_y6 = _mm_clmulepi64_si128(v_x6, v_kk, (int32_t)(0u)); + v_x6 = _mm_clmulepi64_si128(v_x6, v_kk, (int32_t)(17u)); + v_y7 = _mm_clmulepi64_si128(v_x7, v_kk, (int32_t)(0u)); + v_x7 = _mm_clmulepi64_si128(v_x7, v_kk, (int32_t)(17u)); + v_y0 = _mm_xor_si128(v_y0, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + v_x0 = _mm_xor_si128(v_x0, v_y0); + v_y1 = _mm_xor_si128(v_y1, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u))); + v_x1 = _mm_xor_si128(v_x1, v_y1); + v_y2 = _mm_xor_si128(v_y2, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u))); + v_x2 = _mm_xor_si128(v_x2, v_y2); + v_y3 = _mm_xor_si128(v_y3, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u))); + v_x3 = _mm_xor_si128(v_x3, v_y3); + v_y4 = _mm_xor_si128(v_y4, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 64u))); + v_x4 = _mm_xor_si128(v_x4, v_y4); + v_y5 = _mm_xor_si128(v_y5, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 80u))); + v_x5 = _mm_xor_si128(v_x5, v_y5); + v_y6 = _mm_xor_si128(v_y6, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 96u))); + v_x6 = _mm_xor_si128(v_x6, v_y6); + v_y7 = _mm_xor_si128(v_y7, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 112u))); + v_x7 = _mm_xor_si128(v_x7, v_y7); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 128u); + } + v_kk = _mm_set_epi32((int32_t)(0u), (int32_t)(3433693342u), (int32_t)(0u), (int32_t)(2926088593u)); + v_y0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(0u)); + v_x0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(17u)); + v_y2 = _mm_clmulepi64_si128(v_x2, v_kk, (int32_t)(0u)); + v_x2 = _mm_clmulepi64_si128(v_x2, v_kk, (int32_t)(17u)); + v_y4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(0u)); + v_x4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(17u)); + v_y6 = _mm_clmulepi64_si128(v_x6, v_kk, (int32_t)(0u)); + v_x6 = _mm_clmulepi64_si128(v_x6, v_kk, (int32_t)(17u)); + v_y0 = _mm_xor_si128(v_y0, v_x1); + v_x0 = _mm_xor_si128(v_x0, v_y0); + v_y2 = _mm_xor_si128(v_y2, v_x3); + v_x2 = _mm_xor_si128(v_x2, v_y2); + v_y4 = _mm_xor_si128(v_y4, v_x5); + v_x4 = _mm_xor_si128(v_x4, v_y4); + v_y6 = _mm_xor_si128(v_y6, v_x7); + v_x6 = _mm_xor_si128(v_x6, v_y6); + v_kk = _mm_set_epi32((int32_t)(0u), (int32_t)(2166711591u), (int32_t)(0u), (int32_t)(4057597354u)); + v_y0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(0u)); + v_x0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(17u)); + v_y4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(0u)); + v_x4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(17u)); + v_y0 = _mm_xor_si128(v_y0, v_x2); + v_x0 = _mm_xor_si128(v_x0, v_y0); + v_y4 = _mm_xor_si128(v_y4, v_x6); + v_x4 = _mm_xor_si128(v_x4, v_y4); + v_kk = _mm_set_epi32((int32_t)(0u), (int32_t)(496309207u), (int32_t)(0u), (int32_t)(2402626965u)); + v_y0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(0u)); + v_x0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(17u)); + v_y0 = _mm_xor_si128(v_y0, v_x4); + v_x0 = _mm_xor_si128(v_x0, v_y0); + v_kk = _mm_set_epi32((int32_t)(1u), (int32_t)(3681617473u), (int32_t)(3034951717u), (int32_t)(4144043585u)); + v_s = ((uint32_t)(_mm_extract_epi32(_mm_clmulepi64_si128(_mm_clmulepi64_si128(_mm_cvtsi64_si128((int64_t)(((uint64_t)(_mm_extract_epi64(v_x0, (int32_t)(0u)))))), v_kk, (int32_t)(0u)), v_kk, (int32_t)(16u)), (int32_t)(2u)))); + v_kk = _mm_set_epi32((int32_t)(1u), (int32_t)(3681617473u), (int32_t)(3034951717u), (int32_t)(4144043585u)); + v_s = ((uint32_t)(_mm_extract_epi32(_mm_clmulepi64_si128(_mm_clmulepi64_si128(_mm_cvtsi64_si128((int64_t)((((uint64_t)(_mm_extract_epi64(v_x0, (int32_t)(1u)))) ^ ((uint64_t)(v_s))))), v_kk, (int32_t)(0u)), v_kk, (int32_t)(16u)), (int32_t)(2u)))); + } + while (((uint64_t)(a_x.len)) >= 8u) { + v_kk = _mm_set_epi32((int32_t)(1u), (int32_t)(3681617473u), (int32_t)(3034951717u), (int32_t)(4144043585u)); + v_s = ((uint32_t)(_mm_extract_epi32(_mm_clmulepi64_si128(_mm_clmulepi64_si128(_mm_cvtsi64_si128((int64_t)((wuffs_base__peek_u64le__no_bounds_check(a_x.ptr) ^ ((uint64_t)(v_s))))), v_kk, (int32_t)(0u)), v_kk, (int32_t)(16u)), (int32_t)(2u)))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 8u); } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + while (((uint64_t)(a_x.len)) > 0u) { + v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ a_x.ptr[0u]))] ^ (v_s >> 8u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); + self->private_impl.f_state = (4294967295u ^ v_s); + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 - wuffs_base__status v_status = wuffs_base__make_status(NULL); +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC32) - uint32_t coro_susp_point = self->private_impl.p_tell_me_more[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC64) - while (true) { - { - wuffs_base__status t_0 = wuffs_gif__decoder__do_tell_me_more(self, a_dst, a_minfo, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_gif__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } +// ---------------- Status Codes Implementations - ok: - self->private_impl.p_tell_me_more[0] = 0; - goto exit; - } +// ---------------- Private Consts - goto suspend; - suspend: - self->private_impl.p_tell_me_more[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; +static const uint64_t +WUFFS_CRC64__ECMA_TABLE[8][256] WUFFS_BASE__POTENTIALLY_UNUSED = { + { + 0u, 12911341560706588527u, 17619267392293085275u, 5164075066763771700u, 8921845837811637811u, 14483170935171449180u, 10328150133527543400u, 4357999468653093127u, + 17843691675623275622u, 4940391307328217865u, 226782375002905661u, 12685511915359257426u, 10119945210068853333u, 4566377562367245626u, 8715998937306186254u, 14689403211693301089u, + 9051005139383707209u, 14895072503764629798u, 9880782614656435730u, 4193374422961527165u, 453564750005811322u, 13070904082541799189u, 17496296445768931361u, 4747102235666401102u, + 9960315520700766767u, 4113029525020509504u, 9132755124734491252u, 14812441257301386523u, 17431997874612372508u, 4811156168024382323u, 391483189436228679u, 13132671735097031464u, + 18102010278767414418u, 5195199925788447741u, 1131375642422963401u, 13591081480414639014u, 9288535643022529185u, 3731739485546663374u, 8386748845923054330u, 14361410892855143829u, + 907129500011622644u, 13814943346342178715u, 17875617253995106479u, 5421418680781082560u, 8594564625313771207u, 14152643483341451688u, 9494204471332802204u, 3525329033817543155u, + 9704381199536204507u, 3855837706121835956u, 8226059050041019008u, 13908973417437222383u, 18265510249468982504u, 5643692520190618503u, 718348998302913715u, 13463047253836762076u, + 8146277531524994749u, 13989069943491807698u, 9622312336048764646u, 3938150108875254153u, 782966378872457358u, 13399312233903888353u, 18327840216347633877u, 5582173445676054458u, + 7257036000092981153u, 15535280666427316430u, 10390399851576895482u, 2529986302517213333u, 2262751284845926802u, 12414353723947190013u, 16997392145760156105u, 6398650419759490726u, + 10599130201908394951u, 2322133910755632296u, 7463478971093326748u, 15329644185724306675u, 16773497691846108660u, 6622864283287239323u, 2036569382881248687u, 12640783567252986560u, + 1814259000023245288u, 12250853444207230599u, 17125426475222188467u, 6811676960462675676u, 7132938157145702363u, 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17087973961803566864u, 4006576835745435728u, 14591990156772618005u, 1170861220680101973u, 11704755513490951962u, 8705792948709298266u, 9640554597612056351u, 6878321524855255135u, + 1858937689852799821u, 14083548048513152013u, 4497338522683984712u, 16489741062169236488u, 6235036951360285511u, 10104345546597921799u, 8152299718492490562u, 12365860697102636034u, + 9753200483853429593u, 6765745319621112857u, 11601220269275925340u, 8809399250468705308u, 14416405870873226067u, 1346516287098352659u, 17272668747995384662u, 3821952007586370582u, + 13130466198490314208u, 7820039919040899744u, 10492627387899532773u, 5414409408661555877u, 17974923397289260522u, 2579810761044912810u, 16057098401758057967u, 317732763665910447u, + 2931518593336833524u, 17442526084696124084u, 1084062204544407025u, 15399436031514938033u, 7486618966321411582u, 13644576356632980158u, 4629793036166665723u, 11168576964637084347u, + 15347691128931141778u, 1027777753507534802u, 17534896747071563927u, 3019349226222860247u, 11220431689754577048u, 4686116923914377176u, 13552315720802183325u, 7398828111596124125u, + 5362628359632734342u, 10436379358185592774u, 7912374160093407363u, 13218332977821366211u, 369553541361633420u, 16113456511805446092u, 2487515902914439305u, 17887166489985742793u, + 8865757316743550527u, 11653040814255671679u, 6677988576850966074u, 9660905738751846778u, 3765703796660934197u, 17220887603689539957u, 1434383093523822128u, 14508740362393577840u, + 16546065181022836267u, 4549193289962883435u, 13995757083443852846u, 1766676892172462446u, 12309576339732698657u, 8100554995509053793u, 10192175931700983332u, 6327407589325138276u, + }, +}; - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_FOLD1[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 228u, 58u, 57u, 202u, 151u, 212u, 93u, 224u, + 64u, 95u, 135u, 199u, 175u, 149u, 190u, 218u, +}; -// -------- func gif.decoder.do_tell_me_more +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_FOLD2[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 68u, 250u, 158u, 138u, 0u, 91u, 9u, 96u, + 81u, 175u, 225u, 15u, 163u, 83u, 230u, 59u, +}; + +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_FOLD4[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 243u, 65u, 212u, 157u, 187u, 239u, 227u, 106u, + 244u, 45u, 132u, 167u, 84u, 96u, 31u, 8u, +}; + +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_FOLD8[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 16u, 204u, 79u, 29u, 215u, 87u, 135u, + 64u, 231u, 61u, 247u, 42u, 107u, 216u, 215u, +}; + +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_MUPX[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 213u, 99u, 41u, 23u, 108u, 70u, 62u, 156u, + 133u, 30u, 14u, 175u, 43u, 175u, 216u, 146u, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__do_tell_me_more( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); - uint64_t v_chunk_length = 0; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up__choosy_default( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up_x86_sse42( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) - uint32_t coro_susp_point = self->private_impl.p_do_tell_me_more[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +// ---------------- VTables - if ((self->private_impl.f_call_sequence & 16u) == 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } - if (self->private_impl.f_metadata_fourcc == 0u) { - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; - } - while (true) { - while (true) { - if (wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) != self->private_impl.f_metadata_io_position) { - if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - 2u, - 0u, - self->private_impl.f_metadata_io_position, - 0u, - 0u); - } - status = wuffs_base__make_status(wuffs_base__suspension__mispositioned_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - 0u, - 0u, - 0u, - 0u, - 0u); - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - continue; - } - break; - } - v_chunk_length = ((uint64_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))); - if (v_chunk_length <= 0u) { - iop_a_src += 1u; - break; - } - if (self->private_impl.f_metadata_fourcc == 1481461792u) { - v_chunk_length += 1u; - } else { - iop_a_src += 1u; - } - self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add(wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))), v_chunk_length); - if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - 3u, - self->private_impl.f_metadata_fourcc, - 0u, - wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))), - self->private_impl.f_metadata_io_position); - } - status = wuffs_base__make_status(wuffs_base__suspension__even_more_information); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); +const wuffs_base__hasher_u64__func_ptrs +wuffs_crc64__ecma_hasher__func_ptrs_for__wuffs_base__hasher_u64 = { + (uint64_t(*)(const void*))(&wuffs_crc64__ecma_hasher__checksum_u64), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_crc64__ecma_hasher__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_crc64__ecma_hasher__set_quirk), + (wuffs_base__empty_struct(*)(void*, + wuffs_base__slice_u8))(&wuffs_crc64__ecma_hasher__update), + (uint64_t(*)(void*, + wuffs_base__slice_u8))(&wuffs_crc64__ecma_hasher__update_u64), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_crc64__ecma_hasher__initialize( + wuffs_crc64__ecma_hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } - if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - 3u, - self->private_impl.f_metadata_fourcc, - 0u, - self->private_impl.f_metadata_io_position, - self->private_impl.f_metadata_io_position); +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - self->private_impl.f_call_sequence &= 239u; - self->private_impl.f_metadata_fourcc = 0u; - self->private_impl.f_metadata_io_position = 0u; - status = wuffs_base__make_status(NULL); - goto ok; - - ok: - self->private_impl.p_do_tell_me_more[0] = 0; - goto exit; } - goto suspend; - suspend: - self->private_impl.p_do_tell_me_more[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.choosy_up = &wuffs_crc64__ecma_hasher__up__choosy_default; - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__hasher_u64.vtable_name = + wuffs_base__hasher_u64__vtable_name; + self->private_impl.vtable_for__wuffs_base__hasher_u64.function_pointers = + (const void*)(&wuffs_crc64__ecma_hasher__func_ptrs_for__wuffs_base__hasher_u64); + return wuffs_base__make_status(NULL); +} + +wuffs_crc64__ecma_hasher* +wuffs_crc64__ecma_hasher__alloc(void) { + wuffs_crc64__ecma_hasher* x = + (wuffs_crc64__ecma_hasher*)(calloc(1, sizeof(wuffs_crc64__ecma_hasher))); + if (!x) { + return NULL; } + if (wuffs_crc64__ecma_hasher__initialize( + x, sizeof(wuffs_crc64__ecma_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} - return status; +size_t +sizeof__wuffs_crc64__ecma_hasher(void) { + return sizeof(wuffs_crc64__ecma_hasher); } -// -------- func gif.decoder.num_animation_loops +// ---------------- Function Implementations + +// -------- func crc64.ecma_hasher.get_quirk WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_gif__decoder__num_animation_loops( - const wuffs_gif__decoder* self) { +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_crc64__ecma_hasher__get_quirk( + const wuffs_crc64__ecma_hasher* self, + uint32_t a_key) { if (!self) { return 0; } @@ -37136,38 +37965,134 @@ wuffs_gif__decoder__num_animation_loops( return 0; } - if (self->private_impl.f_seen_num_animation_loops_value) { - return self->private_impl.f_num_animation_loops_value; - } - if (self->private_impl.f_num_decoded_frame_configs_value > 1u) { - return 1u; - } return 0u; } -// -------- func gif.decoder.num_decoded_frame_configs +// -------- func crc64.ecma_hasher.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_crc64__ecma_hasher__set_quirk( + wuffs_crc64__ecma_hasher* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func crc64.ecma_hasher.update + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__update( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } + + if (self->private_impl.f_state == 0u) { + self->private_impl.choosy_up = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_crc64__ecma_hasher__up_x86_sse42 : +#endif + self->private_impl.choosy_up); + } + wuffs_crc64__ecma_hasher__up(self, a_x); + return wuffs_base__make_empty_struct(); +} + +// -------- func crc64.ecma_hasher.update_u64 WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_gif__decoder__num_decoded_frame_configs( - const wuffs_gif__decoder* self) { +wuffs_crc64__ecma_hasher__update_u64( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { if (!self) { return 0; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { return 0; } - return self->private_impl.f_num_decoded_frame_configs_value; + wuffs_crc64__ecma_hasher__update(self, a_x); + return wuffs_crc64__ecma_hasher__checksum_u64(self); } -// -------- func gif.decoder.num_decoded_frames +// -------- func crc64.ecma_hasher.up + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { + return (*self->private_impl.choosy_up)(self, a_x); +} + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up__choosy_default( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { + uint64_t v_s = 0; + wuffs_base__slice_u8 v_p = {0}; + + v_s = (18446744073709551615u ^ self->private_impl.f_state); + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 8; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8)); + while (v_p.ptr < i_end0_p) { + v_s ^= ((((uint64_t)(v_p.ptr[0u])) << 0u) | + (((uint64_t)(v_p.ptr[1u])) << 8u) | + (((uint64_t)(v_p.ptr[2u])) << 16u) | + (((uint64_t)(v_p.ptr[3u])) << 24u) | + (((uint64_t)(v_p.ptr[4u])) << 32u) | + (((uint64_t)(v_p.ptr[5u])) << 40u) | + (((uint64_t)(v_p.ptr[6u])) << 48u) | + (((uint64_t)(v_p.ptr[7u])) << 56u)); + v_s = (WUFFS_CRC64__ECMA_TABLE[0u][(255u & (v_s >> 56u))] ^ + WUFFS_CRC64__ECMA_TABLE[1u][(255u & (v_s >> 48u))] ^ + WUFFS_CRC64__ECMA_TABLE[2u][(255u & (v_s >> 40u))] ^ + WUFFS_CRC64__ECMA_TABLE[3u][(255u & (v_s >> 32u))] ^ + WUFFS_CRC64__ECMA_TABLE[4u][(255u & (v_s >> 24u))] ^ + WUFFS_CRC64__ECMA_TABLE[5u][(255u & (v_s >> 16u))] ^ + WUFFS_CRC64__ECMA_TABLE[6u][(255u & (v_s >> 8u))] ^ + WUFFS_CRC64__ECMA_TABLE[7u][(255u & (v_s >> 0u))]); + v_p.ptr += 8; + } + v_p.len = 1; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end1_p) { + v_s = (WUFFS_CRC64__ECMA_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); + v_p.ptr += 1; + } + v_p.len = 0; + } + self->private_impl.f_state = (18446744073709551615u ^ v_s); + return wuffs_base__make_empty_struct(); +} + +// -------- func crc64.ecma_hasher.checksum_u64 WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_gif__decoder__num_decoded_frames( - const wuffs_gif__decoder* self) { +wuffs_crc64__ecma_hasher__checksum_u64( + const wuffs_crc64__ecma_hasher* self) { if (!self) { return 0; } @@ -37176,72 +38101,473 @@ wuffs_gif__decoder__num_decoded_frames( return 0; } - return self->private_impl.f_num_decoded_frames_value; + return self->private_impl.f_state; } -// -------- func gif.decoder.frame_dirty_rect +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func crc64.ecma_hasher.up_x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_gif__decoder__frame_dirty_rect( - const wuffs_gif__decoder* self) { +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up_x86_sse42( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { + uint64_t v_s = 0; + wuffs_base__slice_u8 v_p = {0}; + uint8_t v_buf[48] = {0}; + __m128i v_xa = {0}; + __m128i v_xb = {0}; + __m128i v_xc = {0}; + __m128i v_xd = {0}; + __m128i v_xe = {0}; + __m128i v_xf = {0}; + __m128i v_xg = {0}; + __m128i v_xh = {0}; + __m128i v_mu1 = {0}; + __m128i v_mu2 = {0}; + __m128i v_mu4 = {0}; + __m128i v_mu8 = {0}; + __m128i v_mupx = {0}; + + v_s = (18446744073709551615u ^ self->private_impl.f_state); + while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { + v_s = (WUFFS_CRC64__ECMA_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ a_x.ptr[0u]))] ^ (v_s >> 8u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); + } + do { + do { + if (((uint64_t)(a_x.len)) >= 128u) { + } else if (((uint64_t)(a_x.len)) >= 64u) { + v_xa = _mm_xor_si128(_mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)), _mm_cvtsi64_si128((int64_t)(v_s))); + v_xb = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); + v_xc = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); + v_xd = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 64u); + break; + } else if (((uint64_t)(a_x.len)) >= 32u) { + v_xa = _mm_xor_si128(_mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)), _mm_cvtsi64_si128((int64_t)(v_s))); + v_xb = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 32u); + goto label__chain2__break; + } else { + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 1; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end0_p) { + v_s = (WUFFS_CRC64__ECMA_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); + v_p.ptr += 1; + } + v_p.len = 0; + } + self->private_impl.f_state = (18446744073709551615u ^ v_s); + return wuffs_base__make_empty_struct(); + } + v_xa = _mm_xor_si128(_mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)), _mm_cvtsi64_si128((int64_t)(v_s))); + v_xb = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); + v_xc = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); + v_xd = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); + v_xe = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 64u)); + v_xf = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 80u)); + v_xg = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 96u)); + v_xh = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 112u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 128u); + v_mu8 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD8)); + while (((uint64_t)(a_x.len)) >= 128u) { + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u))); + v_xc = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xc, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xc, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u))); + v_xd = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xd, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xd, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u))); + v_xe = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xe, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xe, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 64u))); + v_xf = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xf, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xf, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 80u))); + v_xg = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xg, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xg, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 96u))); + v_xh = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xh, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xh, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 112u))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 128u); + } + v_mu4 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD4)); + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu4, (int32_t)(17u))), v_xe); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu4, (int32_t)(17u))), v_xf); + v_xc = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xc, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xc, v_mu4, (int32_t)(17u))), v_xg); + v_xd = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xd, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xd, v_mu4, (int32_t)(17u))), v_xh); + if (((uint64_t)(a_x.len)) > 64u) { + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu4, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu4, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u))); + v_xc = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xc, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xc, v_mu4, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u))); + v_xd = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xd, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xd, v_mu4, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 64u); + } + } while (0); + v_mu2 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD2)); + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(17u))), v_xc); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu2, (int32_t)(17u))), v_xd); + if (((uint64_t)(a_x.len)) > 32u) { + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu2, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 32u); + } + } while (0); + label__chain2__break:; + v_mu1 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD1)); + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu1, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu1, (int32_t)(17u))), v_xb); + if (((uint64_t)(a_x.len)) > 24u) { + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu1, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu1, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 16u); + if (((uint64_t)(a_x.len)) > 24u) { + return wuffs_base__make_empty_struct(); + } + } + _mm_storeu_si128((__m128i*)(void*)(v_buf + (24u - ((uint64_t)(a_x.len)))), v_xa); + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(v_buf, ((24u - ((uint64_t)(a_x.len))) + 16u), 48), a_x); + v_mu2 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD2)); + v_xa = _mm_lddqu_si128((const __m128i*)(const void*)(v_buf + 0u)); + v_xb = _mm_lddqu_si128((const __m128i*)(const void*)(v_buf + 16u)); + v_xc = _mm_lddqu_si128((const __m128i*)(const void*)(v_buf + 32u)); + v_xd = _mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(17u))); + v_xe = _mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu1, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu1, (int32_t)(17u))); + v_xa = _mm_xor_si128(v_xd, _mm_xor_si128(v_xe, v_xc)); + v_mupx = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_MUPX)); + v_xb = _mm_clmulepi64_si128(v_xa, v_mupx, (int32_t)(0u)); + v_xc = _mm_clmulepi64_si128(v_xb, v_mupx, (int32_t)(16u)); + v_s = ((uint64_t)(_mm_extract_epi64(_mm_xor_si128(_mm_xor_si128(v_xc, _mm_slli_si128(v_xb, (int32_t)(8u))), v_xa), (int32_t)(1u)))); + self->private_impl.f_state = (18446744073709551615u ^ v_s); + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC64) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) + +// ---------------- Status Codes Implementations + +const char wuffs_deflate__error__bad_huffman_code_over_subscribed[] = "#deflate: bad Huffman code (over-subscribed)"; +const char wuffs_deflate__error__bad_huffman_code_under_subscribed[] = "#deflate: bad Huffman code (under-subscribed)"; +const char wuffs_deflate__error__bad_huffman_code_length_count[] = "#deflate: bad Huffman code length count"; +const char wuffs_deflate__error__bad_huffman_code_length_repetition[] = "#deflate: bad Huffman code length repetition"; +const char wuffs_deflate__error__bad_huffman_code[] = "#deflate: bad Huffman code"; +const char wuffs_deflate__error__bad_huffman_minimum_code_length[] = "#deflate: bad Huffman minimum code length"; +const char wuffs_deflate__error__bad_block[] = "#deflate: bad block"; +const char wuffs_deflate__error__bad_distance[] = "#deflate: bad distance"; +const char wuffs_deflate__error__bad_distance_code_count[] = "#deflate: bad distance code count"; +const char wuffs_deflate__error__bad_literal_length_code_count[] = "#deflate: bad literal/length code count"; +const char wuffs_deflate__error__inconsistent_stored_block_length[] = "#deflate: inconsistent stored block length"; +const char wuffs_deflate__error__missing_end_of_block_code[] = "#deflate: missing end-of-block code"; +const char wuffs_deflate__error__no_huffman_codes[] = "#deflate: no Huffman codes"; +const char wuffs_deflate__error__truncated_input[] = "#deflate: truncated input"; +const char wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state[] = "#deflate: internal error: inconsistent Huffman decoder state"; +const char wuffs_deflate__error__internal_error_inconsistent_i_o[] = "#deflate: internal error: inconsistent I/O"; +const char wuffs_deflate__error__internal_error_inconsistent_distance[] = "#deflate: internal error: inconsistent distance"; +const char wuffs_deflate__error__internal_error_inconsistent_n_bits[] = "#deflate: internal error: inconsistent n_bits"; + +// ---------------- Private Consts + +static const uint8_t +WUFFS_DEFLATE__CODE_ORDER[19] WUFFS_BASE__POTENTIALLY_UNUSED = { + 16u, 17u, 18u, 0u, 8u, 7u, 9u, 6u, + 10u, 5u, 11u, 4u, 12u, 3u, 13u, 2u, + 14u, 1u, 15u, +}; + +static const uint8_t +WUFFS_DEFLATE__REVERSE8[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 128u, 64u, 192u, 32u, 160u, 96u, 224u, + 16u, 144u, 80u, 208u, 48u, 176u, 112u, 240u, + 8u, 136u, 72u, 200u, 40u, 168u, 104u, 232u, + 24u, 152u, 88u, 216u, 56u, 184u, 120u, 248u, + 4u, 132u, 68u, 196u, 36u, 164u, 100u, 228u, + 20u, 148u, 84u, 212u, 52u, 180u, 116u, 244u, + 12u, 140u, 76u, 204u, 44u, 172u, 108u, 236u, + 28u, 156u, 92u, 220u, 60u, 188u, 124u, 252u, + 2u, 130u, 66u, 194u, 34u, 162u, 98u, 226u, + 18u, 146u, 82u, 210u, 50u, 178u, 114u, 242u, + 10u, 138u, 74u, 202u, 42u, 170u, 106u, 234u, + 26u, 154u, 90u, 218u, 58u, 186u, 122u, 250u, + 6u, 134u, 70u, 198u, 38u, 166u, 102u, 230u, + 22u, 150u, 86u, 214u, 54u, 182u, 118u, 246u, + 14u, 142u, 78u, 206u, 46u, 174u, 110u, 238u, + 30u, 158u, 94u, 222u, 62u, 190u, 126u, 254u, + 1u, 129u, 65u, 193u, 33u, 161u, 97u, 225u, + 17u, 145u, 81u, 209u, 49u, 177u, 113u, 241u, + 9u, 137u, 73u, 201u, 41u, 169u, 105u, 233u, + 25u, 153u, 89u, 217u, 57u, 185u, 121u, 249u, + 5u, 133u, 69u, 197u, 37u, 165u, 101u, 229u, + 21u, 149u, 85u, 213u, 53u, 181u, 117u, 245u, + 13u, 141u, 77u, 205u, 45u, 173u, 109u, 237u, + 29u, 157u, 93u, 221u, 61u, 189u, 125u, 253u, + 3u, 131u, 67u, 195u, 35u, 163u, 99u, 227u, + 19u, 147u, 83u, 211u, 51u, 179u, 115u, 243u, + 11u, 139u, 75u, 203u, 43u, 171u, 107u, 235u, + 27u, 155u, 91u, 219u, 59u, 187u, 123u, 251u, + 7u, 135u, 71u, 199u, 39u, 167u, 103u, 231u, + 23u, 151u, 87u, 215u, 55u, 183u, 119u, 247u, + 15u, 143u, 79u, 207u, 47u, 175u, 111u, 239u, + 31u, 159u, 95u, 223u, 63u, 191u, 127u, 255u, +}; + +static const uint32_t +WUFFS_DEFLATE__LCODE_MAGIC_NUMBERS[32] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1073741824u, 1073742080u, 1073742336u, 1073742592u, 1073742848u, 1073743104u, 1073743360u, 1073743616u, + 1073743888u, 1073744400u, 1073744912u, 1073745424u, 1073745952u, 1073746976u, 1073748000u, 1073749024u, + 1073750064u, 1073752112u, 1073754160u, 1073756208u, 1073758272u, 1073762368u, 1073766464u, 1073770560u, + 1073774672u, 1073782864u, 1073791056u, 1073799248u, 1073807104u, 134217728u, 134217728u, 134217728u, +}; + +static const uint32_t +WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[32] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1073741824u, 1073742080u, 1073742336u, 1073742592u, 1073742864u, 1073743376u, 1073743904u, 1073744928u, + 1073745968u, 1073748016u, 1073750080u, 1073754176u, 1073758288u, 1073766480u, 1073774688u, 1073791072u, + 1073807472u, 1073840240u, 1073873024u, 1073938560u, 1074004112u, 1074135184u, 1074266272u, 1074528416u, + 1074790576u, 1075314864u, 1075839168u, 1076887744u, 1077936336u, 1080033488u, 134217728u, 134217728u, +}; + +#define WUFFS_DEFLATE__HUFFS_TABLE_SIZE 1024u + +#define WUFFS_DEFLATE__HUFFS_TABLE_MASK 1023u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__do_transform_io( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_blocks( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_uncompressed( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__init_fixed_huffman( + wuffs_deflate__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__init_dynamic_huffman( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__init_huff( + wuffs_deflate__decoder* self, + uint32_t a_which, + uint32_t a_n_codes0, + uint32_t a_n_codes1, + uint32_t a_base_symbol); + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_bmi2( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_fast32( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_fast64( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_slow( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_deflate__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_deflate__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_deflate__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_deflate__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_deflate__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_deflate__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_deflate__decoder__initialize( + wuffs_deflate__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); } - return wuffs_base__utility__make_rect_ie_u32( - wuffs_base__u32__min(self->private_impl.f_frame_rect_x0, self->private_impl.f_width), - wuffs_base__u32__min(self->private_impl.f_frame_rect_y0, self->private_impl.f_height), - wuffs_base__u32__min(self->private_impl.f_frame_rect_x1, self->private_impl.f_width), - wuffs_base__u32__min(self->private_impl.f_dirty_max_excl_y, self->private_impl.f_height)); + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.choosy_decode_huffman_fast64 = &wuffs_deflate__decoder__decode_huffman_fast64__choosy_default; + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_deflate__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_deflate__decoder* +wuffs_deflate__decoder__alloc(void) { + wuffs_deflate__decoder* x = + (wuffs_deflate__decoder*)(calloc(1, sizeof(wuffs_deflate__decoder))); + if (!x) { + return NULL; + } + if (wuffs_deflate__decoder__initialize( + x, sizeof(wuffs_deflate__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_deflate__decoder(void) { + return sizeof(wuffs_deflate__decoder); } -// -------- func gif.decoder.history_retain_length +// ---------------- Function Implementations + +// -------- func deflate.decoder.add_history WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_gif__decoder__history_retain_length( - const wuffs_gif__decoder* self) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_deflate__decoder__add_history( + wuffs_deflate__decoder* self, + wuffs_base__slice_u8 a_hist) { if (!self) { - return 0; + return wuffs_base__make_empty_struct(); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); } - return 0u; + wuffs_base__slice_u8 v_s = {0}; + uint64_t v_n_copied = 0; + uint32_t v_already_full = 0; + + v_s = a_hist; + if (((uint64_t)(v_s.len)) >= 32768u) { + v_s = wuffs_private_impl__slice_u8__suffix(v_s, 32768u); + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_history, 32768), v_s); + self->private_impl.f_history_index = 32768u; + } else { + v_n_copied = wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_history, (self->private_impl.f_history_index & 32767u), 32768), v_s); + if (v_n_copied < ((uint64_t)(v_s.len))) { + v_s = wuffs_base__slice_u8__subslice_i(v_s, v_n_copied); + v_n_copied = wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_history, 32768), v_s); + self->private_impl.f_history_index = (((uint32_t)((v_n_copied & 32767u))) + 32768u); + } else { + v_already_full = 0u; + if (self->private_impl.f_history_index >= 32768u) { + v_already_full = 32768u; + } + self->private_impl.f_history_index = ((self->private_impl.f_history_index & 32767u) + ((uint32_t)((v_n_copied & 32767u))) + v_already_full); + } + } + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(self->private_data.f_history, 32768, 33025), wuffs_base__make_slice_u8(self->private_data.f_history, 33025)); + return wuffs_base__make_empty_struct(); } -// -------- func gif.decoder.workbuf_len +// -------- func deflate.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_gif__decoder__workbuf_len( - const wuffs_gif__decoder* self) { +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_deflate__decoder__get_quirk( + const wuffs_deflate__decoder* self, + uint32_t a_key) { if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); + return 0; } if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + return 0; } - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + return 0u; } -// -------- func gif.decoder.restart_frame +// -------- func deflate.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_gif__decoder__restart_frame( - wuffs_gif__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { +wuffs_deflate__decoder__set_quirk( + wuffs_deflate__decoder* self, + uint32_t a_key, + uint64_t a_value) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -37252,28 +38578,52 @@ wuffs_gif__decoder__restart_frame( : wuffs_base__error__initialize_not_called); } - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } else if (a_io_position == 0u) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func deflate.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_deflate__decoder__dst_history_retain_length( + const wuffs_deflate__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); } - self->private_impl.f_delayed_num_decoded_frames = false; - self->private_impl.f_frame_config_io_position = a_io_position; - self->private_impl.f_num_decoded_frame_configs_value = a_index; - self->private_impl.f_num_decoded_frames_value = a_index; - wuffs_gif__decoder__reset_gc(self); - self->private_impl.f_call_sequence = 40u; - return wuffs_base__make_status(NULL); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_base__utility__make_optional_u63(true, 0u); } -// -------- func gif.decoder.decode_frame_config +// -------- func deflate.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_deflate__decoder__workbuf_len( + const wuffs_deflate__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(1u, 1u); +} + +// -------- func deflate.decoder.transform_io WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_gif__decoder__decode_frame_config( - wuffs_gif__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_deflate__decoder__transform_io( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -37283,12 +38633,12 @@ wuffs_gif__decoder__decode_frame_config( ? wuffs_base__error__disabled_by_previous_error : wuffs_base__error__initialize_not_called); } - if (!a_src) { + if (!a_dst || !a_src) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { + (self->private_impl.active_coroutine != 1)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -37297,17 +38647,17 @@ wuffs_gif__decoder__decode_frame_config( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; + uint32_t coro_susp_point = self->private_impl.p_transform_io; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_gif__decoder__do_decode_frame_config(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_deflate__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_gif__error__truncated_input); + status = wuffs_base__make_status(wuffs_deflate__error__truncated_input); goto exit; } status = v_status; @@ -37315,14 +38665,14 @@ wuffs_gif__decoder__decode_frame_config( } ok: - self->private_impl.p_decode_frame_config[0] = 0; + self->private_impl.p_transform_io = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: @@ -37332,403 +38682,103 @@ wuffs_gif__decoder__decode_frame_config( return status; } -// -------- func gif.decoder.do_decode_frame_config +// -------- func deflate.decoder.do_transform_io WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__do_decode_frame_config( - wuffs_gif__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_deflate__decoder__do_transform_io( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_background_color = 0; - uint8_t v_flags = 0; + uint64_t v_mark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config[0]; - if (coro_susp_point) { - v_background_color = self->private_data.s_do_decode_frame_config[0].v_background_color; - } + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - self->private_impl.f_dirty_max_excl_y = 0u; - if ((self->private_impl.f_call_sequence & 16u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + self->private_impl.choosy_decode_huffman_fast64 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) + wuffs_base__cpu_arch__have_x86_bmi2() ? &wuffs_deflate__decoder__decode_huffman_bmi2 : +#endif + self->private_impl.choosy_decode_huffman_fast64); + while (true) { + v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + wuffs_base__status t_0 = wuffs_deflate__decoder__decode_blocks(self, a_dst, a_src); + v_status = t_0; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_gif__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; - } - } else if (self->private_impl.f_call_sequence == 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_gif__decoder__skip_frame(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - if (self->private_impl.f_call_sequence >= 96u) { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if ((self->private_impl.f_num_decoded_frame_configs_value > 0u) || (self->private_impl.f_call_sequence == 40u)) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_gif__decoder__decode_up_to_id_part1(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - if (self->private_impl.f_call_sequence >= 96u) { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - } - v_background_color = self->private_impl.f_black_color_u32_argb_premul; - if ( ! self->private_impl.f_gc_has_transparent_index) { - v_background_color = self->private_impl.f_background_color_u32_argb_premul; - if (self->private_impl.f_quirks[1u] && (self->private_impl.f_num_decoded_frame_configs_value == 0u)) { - while (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - } - v_flags = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if ((v_flags & 128u) != 0u) { - v_background_color = self->private_impl.f_black_color_u32_argb_premul; + if ( ! wuffs_base__status__is_suspension(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } + goto ok; } - } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - wuffs_base__u32__min(self->private_impl.f_frame_rect_x0, self->private_impl.f_width), - wuffs_base__u32__min(self->private_impl.f_frame_rect_y0, self->private_impl.f_height), - wuffs_base__u32__min(self->private_impl.f_frame_rect_x1, self->private_impl.f_width), - wuffs_base__u32__min(self->private_impl.f_frame_rect_y1, self->private_impl.f_height)), - ((wuffs_base__flicks)(self->private_impl.f_gc_duration)), - self->private_impl.f_num_decoded_frame_configs_value, - self->private_impl.f_frame_config_io_position, - self->private_impl.f_gc_disposal, - ! self->private_impl.f_gc_has_transparent_index, - false, - v_background_color); - } - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frame_configs_value, 1u); - self->private_impl.f_call_sequence = 64u; - - ok: - self->private_impl.p_do_decode_frame_config[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_do_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_frame_config[0].v_background_color = v_background_color; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func gif.decoder.skip_frame - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__skip_frame( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_flags = 0; - uint8_t v_lw = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_skip_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_flags = t_0; - } - if ((v_flags & 128u) != 0u) { - self->private_data.s_skip_frame[0].scratch = (((uint32_t)(3u)) << (1u + (v_flags & 7u))); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (self->private_data.s_skip_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_skip_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_skip_frame[0].scratch; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_lw = t_1; - } - if (v_lw > 8u) { - status = wuffs_base__make_status(wuffs_gif__error__bad_literal_width); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - status = wuffs_gif__decoder__skip_blocks(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - if (self->private_impl.f_quirks[0u]) { - self->private_impl.f_delayed_num_decoded_frames = true; - } else { - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); - } - wuffs_gif__decoder__reset_gc(self); - self->private_impl.f_call_sequence = 32u; - - goto ok; - ok: - self->private_impl.p_skip_frame[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_skip_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func gif.decoder.decode_frame - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_gif__decoder__decode_frame( - wuffs_gif__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_gif__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_gif__error__truncated_input); - goto exit; - } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_transformed_history_count, wuffs_private_impl__io__count_since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)))); + wuffs_deflate__decoder__add_history(self, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); status = v_status; WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } ok: - self->private_impl.p_decode_frame[0] = 0; + self->private_impl.p_do_transform_io = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func gif.decoder.do_decode_frame - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__do_decode_frame( - wuffs_gif__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_gif__decoder__do_decode_frame_config(self, NULL, a_src); - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if (self->private_impl.f_quirks[5u] && ((self->private_impl.f_frame_rect_x0 == self->private_impl.f_frame_rect_x1) || (self->private_impl.f_frame_rect_y0 == self->private_impl.f_frame_rect_y1))) { - status = wuffs_base__make_status(wuffs_gif__error__bad_frame_size); - goto exit; - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_gif__decoder__decode_id_part1(self, a_dst, a_src, a_blend); - if (status.repr) { - goto suspend; - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_gif__decoder__decode_id_part2(self, a_dst, a_src, a_workbuf); - if (status.repr) { - goto suspend; - } - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); - wuffs_gif__decoder__reset_gc(self); - self->private_impl.f_call_sequence = 32u; - - ok: - self->private_impl.p_do_decode_frame[0] = 0; - goto exit; + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - goto suspend; - suspend: - self->private_impl.p_do_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: return status; } -// -------- func gif.decoder.reset_gc - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_gif__decoder__reset_gc( - wuffs_gif__decoder* self) { - self->private_impl.f_gc_has_transparent_index = false; - self->private_impl.f_gc_transparent_index = 0u; - self->private_impl.f_gc_disposal = 0u; - self->private_impl.f_gc_duration = 0u; - return wuffs_base__make_empty_struct(); -} - -// -------- func gif.decoder.decode_up_to_id_part1 +// -------- func deflate.decoder.decode_blocks WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_up_to_id_part1( - wuffs_gif__decoder* self, +wuffs_deflate__decoder__decode_blocks( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_block_type = 0; + uint32_t v_final = 0; + uint32_t v_b0 = 0; + uint32_t v_type = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -37741,71 +38791,125 @@ wuffs_gif__decoder__decode_up_to_id_part1( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_up_to_id_part1[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_blocks; + if (coro_susp_point) { + v_final = self->private_data.s_decode_blocks.v_final; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_frame_config_io_position == 0u) || (self->private_impl.f_num_decoded_frame_configs_value > 0u)) { - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + label__outer__continue:; + while (v_final == 0u) { + while (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_0 = *iop_a_src++; + v_b0 = t_0; } - uint8_t t_0 = *iop_a_src++; - v_block_type = t_0; + self->private_impl.f_bits |= (v_b0 << (self->private_impl.f_n_bits & 3u)); + self->private_impl.f_n_bits = ((self->private_impl.f_n_bits & 3u) + 8u); } - if (v_block_type == 33u) { + v_final = (self->private_impl.f_bits & 1u); + v_type = ((self->private_impl.f_bits >> 1u) & 3u); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + if (v_type == 0u) { if (a_src) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_gif__decoder__decode_extension(self, a_src); + status = wuffs_deflate__decoder__decode_uncompressed(self, a_dst, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; } if (status.repr) { goto suspend; } - } else if (v_block_type == 44u) { - if (self->private_impl.f_delayed_num_decoded_frames) { - self->private_impl.f_delayed_num_decoded_frames = false; - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + continue; + } else if (v_type == 1u) { + v_status = wuffs_deflate__decoder__init_fixed_huffman(self); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; } + } else if (v_type == 2u) { if (a_src) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_gif__decoder__decode_id_part0(self, a_src); + status = wuffs_deflate__decoder__init_dynamic_huffman(self, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; } if (status.repr) { goto suspend; } - break; } else { - if (self->private_impl.f_delayed_num_decoded_frames) { - self->private_impl.f_delayed_num_decoded_frames = false; - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + status = wuffs_base__make_status(wuffs_deflate__error__bad_block); + goto exit; + } + self->private_impl.f_end_of_block = false; + while (true) { + if (sizeof(void*) == 4u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_status = wuffs_deflate__decoder__decode_huffman_fast32(self, a_dst, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } else { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_status = wuffs_deflate__decoder__decode_huffman_fast64(self, a_dst, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_error(&v_status)) { + status = v_status; + goto exit; + } + if (self->private_impl.f_end_of_block) { + goto label__outer__continue; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_deflate__decoder__decode_huffman_slow(self, a_dst, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_end_of_block) { + goto label__outer__continue; } - self->private_impl.f_call_sequence = 96u; - break; } } - goto ok; ok: - self->private_impl.p_decode_up_to_id_part1[0] = 0; + self->private_impl.p_decode_blocks = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_up_to_id_part1[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_blocks = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_blocks.v_final = v_final; goto exit; exit: @@ -37816,18 +38920,32 @@ wuffs_gif__decoder__decode_up_to_id_part1( return status; } -// -------- func gif.decoder.decode_header +// -------- func deflate.decoder.decode_uncompressed WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_header( - wuffs_gif__decoder* self, +wuffs_deflate__decoder__decode_uncompressed( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c[6] = {0}; - uint32_t v_i = 0; + uint32_t v_length = 0; + uint32_t v_n_copied = 0; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -37839,50 +38957,85 @@ wuffs_gif__decoder__decode_header( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_header[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_uncompressed; if (coro_susp_point) { - memcpy(v_c, self->private_data.s_decode_header[0].v_c, sizeof(v_c)); - v_i = self->private_data.s_decode_header[0].v_i; + v_length = self->private_data.s_decode_uncompressed.v_length; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - while (v_i < 6u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_n_bits = 0u; + self->private_impl.f_bits = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_uncompressed.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_uncompressed.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; } - uint8_t t_0 = *iop_a_src++; - v_c[v_i] = t_0; } - v_i += 1u; + v_length = t_0; } - if ((v_c[0u] != 71u) || - (v_c[1u] != 73u) || - (v_c[2u] != 70u) || - (v_c[3u] != 56u) || - ((v_c[4u] != 55u) && (v_c[4u] != 57u)) || - (v_c[5u] != 97u)) { - status = wuffs_base__make_status(wuffs_gif__error__bad_header); + if ((((v_length) & 0xFFFFu) + ((v_length) >> (32u - 16u))) != 65535u) { + status = wuffs_base__make_status(wuffs_deflate__error__inconsistent_stored_block_length); goto exit; } + v_length = ((v_length) & 0xFFFFu); + while (true) { + v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_reader( + &iop_a_dst, io2_a_dst,v_length, &iop_a_src, io2_a_src); + if (v_length <= v_n_copied) { + status = wuffs_base__make_status(NULL); + goto ok; + } + v_length -= v_n_copied; + if (((uint64_t)(io2_a_dst - iop_a_dst)) == 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + } else { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + } + } - goto ok; ok: - self->private_impl.p_decode_header[0] = 0; + self->private_impl.p_decode_uncompressed = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_header[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - memcpy(self->private_data.s_decode_header[0].v_c, v_c, sizeof(v_c)); - self->private_data.s_decode_header[0].v_i = v_i; + self->private_impl.p_decode_uncompressed = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_uncompressed.v_length = v_length; goto exit; exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -37890,21 +39043,80 @@ wuffs_gif__decoder__decode_header( return status; } -// -------- func gif.decoder.decode_lsd +// -------- func deflate.decoder.init_fixed_huffman WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_lsd( - wuffs_gif__decoder* self, +wuffs_deflate__decoder__init_fixed_huffman( + wuffs_deflate__decoder* self) { + uint32_t v_i = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + while (v_i < 144u) { + self->private_data.f_code_lengths[v_i] = 8u; + v_i += 1u; + } + while (v_i < 256u) { + self->private_data.f_code_lengths[v_i] = 9u; + v_i += 1u; + } + while (v_i < 280u) { + self->private_data.f_code_lengths[v_i] = 7u; + v_i += 1u; + } + while (v_i < 288u) { + self->private_data.f_code_lengths[v_i] = 8u; + v_i += 1u; + } + while (v_i < 320u) { + self->private_data.f_code_lengths[v_i] = 5u; + v_i += 1u; + } + v_status = wuffs_deflate__decoder__init_huff(self, + 0u, + 0u, + 288u, + 257u); + if (wuffs_base__status__is_error(&v_status)) { + return v_status; + } + v_status = wuffs_deflate__decoder__init_huff(self, + 1u, + 288u, + 320u, + 0u); + if (wuffs_base__status__is_error(&v_status)) { + return v_status; + } + return wuffs_base__make_status(NULL); +} + +// -------- func deflate.decoder.init_dynamic_huffman + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__init_dynamic_huffman( + wuffs_deflate__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_flags = 0; - uint8_t v_background_color_index = 0; - uint32_t v_num_palette_entries = 0; + uint32_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_b0 = 0; + uint32_t v_n_lit = 0; + uint32_t v_n_dist = 0; + uint32_t v_n_clen = 0; uint32_t v_i = 0; - uint32_t v_j = 0; - uint32_t v_argb = 0; + uint32_t v_b1 = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_mask = 0; + uint32_t v_table_entry = 0; + uint32_t v_table_entry_n_bits = 0; + uint32_t v_b2 = 0; + uint32_t v_n_extra_bits = 0; + uint8_t v_rep_symbol = 0; + uint32_t v_rep_count = 0; + uint32_t v_b3 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -37917,172 +39129,215 @@ wuffs_gif__decoder__decode_lsd( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_lsd[0]; + uint32_t coro_susp_point = self->private_impl.p_init_dynamic_huffman; if (coro_susp_point) { - v_flags = self->private_data.s_decode_lsd[0].v_flags; - v_background_color_index = self->private_data.s_decode_lsd[0].v_background_color_index; - v_num_palette_entries = self->private_data.s_decode_lsd[0].v_num_palette_entries; - v_i = self->private_data.s_decode_lsd[0].v_i; + v_bits = self->private_data.s_init_dynamic_huffman.v_bits; + v_n_bits = self->private_data.s_init_dynamic_huffman.v_n_bits; + v_n_lit = self->private_data.s_init_dynamic_huffman.v_n_lit; + v_n_dist = self->private_data.s_init_dynamic_huffman.v_n_dist; + v_n_clen = self->private_data.s_init_dynamic_huffman.v_n_clen; + v_i = self->private_data.s_init_dynamic_huffman.v_i; + v_mask = self->private_data.s_init_dynamic_huffman.v_mask; + v_n_extra_bits = self->private_data.s_init_dynamic_huffman.v_n_extra_bits; + v_rep_symbol = self->private_data.s_init_dynamic_huffman.v_rep_symbol; + v_rep_count = self->private_data.s_init_dynamic_huffman.v_rep_count; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_0 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_lsd[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { + v_bits = self->private_impl.f_bits; + v_n_bits = self->private_impl.f_n_bits; + while (v_n_bits < 14u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_0 = *iop_a_src++; + v_b0 = t_0; + } + v_bits |= (v_b0 << v_n_bits); + v_n_bits += 8u; + } + v_n_lit = (((v_bits) & 0x1Fu) + 257u); + if (v_n_lit > 286u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_literal_length_code_count); + goto exit; + } + v_bits >>= 5u; + v_n_dist = (((v_bits) & 0x1Fu) + 1u); + if (v_n_dist > 30u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_distance_code_count); + goto exit; + } + v_bits >>= 5u; + v_n_clen = (((v_bits) & 0xFu) + 4u); + v_bits >>= 4u; + v_n_bits -= 14u; + v_i = 0u; + while (v_i < v_n_clen) { + while (v_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 8) { - t_0 = ((uint32_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; + uint32_t t_1 = *iop_a_src++; + v_b1 = t_1; } + v_bits |= (v_b1 << v_n_bits); + v_n_bits += 8u; } - self->private_impl.f_width = t_0; + self->private_data.f_code_lengths[WUFFS_DEFLATE__CODE_ORDER[v_i]] = ((uint8_t)((v_bits & 7u))); + v_bits >>= 3u; + v_n_bits -= 3u; + v_i += 1u; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_1 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_lsd[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { + while (v_i < 19u) { + self->private_data.f_code_lengths[WUFFS_DEFLATE__CODE_ORDER[v_i]] = 0u; + v_i += 1u; + } + v_status = wuffs_deflate__decoder__init_huff(self, + 0u, + 0u, + 19u, + 4095u); + if (wuffs_base__status__is_error(&v_status)) { + status = v_status; + goto exit; + } + v_mask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); + v_i = 0u; + while (v_i < (v_n_lit + v_n_dist)) { + while (true) { + v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_mask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 8) { - t_1 = ((uint32_t)(*scratch)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; + uint32_t t_2 = *iop_a_src++; + v_b2 = t_2; } + v_bits |= (v_b2 << v_n_bits); + v_n_bits += 8u; } - self->private_impl.f_height = t_1; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if ((v_table_entry >> 24u) != 128u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - uint8_t t_2 = *iop_a_src++; - v_flags = t_2; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_table_entry = ((v_table_entry >> 8u) & 255u); + if (v_table_entry < 16u) { + self->private_data.f_code_lengths[v_i] = ((uint8_t)(v_table_entry)); + v_i += 1u; + continue; } - uint8_t t_3 = *iop_a_src++; - v_background_color_index = t_3; - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src++; - v_i = 0u; - self->private_impl.f_has_global_palette = ((v_flags & 128u) != 0u); - if (self->private_impl.f_has_global_palette) { - v_num_palette_entries = (((uint32_t)(1u)) << (1u + (v_flags & 7u))); - while (v_i < v_num_palette_entries) { + v_n_extra_bits = 0u; + v_rep_symbol = 0u; + v_rep_count = 0u; + if (v_table_entry == 16u) { + v_n_extra_bits = 2u; + if (v_i <= 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_repetition); + goto exit; + } + v_rep_symbol = ((uint8_t)(self->private_data.f_code_lengths[(v_i - 1u)] & 15u)); + v_rep_count = 3u; + } else if (v_table_entry == 17u) { + v_n_extra_bits = 3u; + v_rep_symbol = 0u; + v_rep_count = 3u; + } else if (v_table_entry == 18u) { + v_n_extra_bits = 7u; + v_rep_symbol = 0u; + v_rep_count = 11u; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + while (v_n_bits < v_n_extra_bits) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { - t_4 = ((uint32_t)(wuffs_base__peek_u24be__no_bounds_check(iop_a_src))); - iop_a_src += 3; - } else { - self->private_data.s_decode_lsd[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); - if (num_bits_4 == 16) { - t_4 = ((uint32_t)(*scratch >> 40)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)); - } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_argb = t_4; + uint32_t t_3 = *iop_a_src++; + v_b3 = t_3; } - v_argb |= 4278190080u; - self->private_data.f_palettes[0u][((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); - self->private_data.f_palettes[0u][((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); - self->private_data.f_palettes[0u][((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); - self->private_data.f_palettes[0u][((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); - v_i += 1u; + v_bits |= (v_b3 << v_n_bits); + v_n_bits += 8u; } - if (self->private_impl.f_quirks[2u]) { - if ((v_background_color_index != 0u) && (((uint32_t)(v_background_color_index)) < v_num_palette_entries)) { - v_j = (4u * ((uint32_t)(v_background_color_index))); - self->private_impl.f_background_color_u32_argb_premul = ((((uint32_t)(self->private_data.f_palettes[0u][(v_j + 0u)])) << 0u) | - (((uint32_t)(self->private_data.f_palettes[0u][(v_j + 1u)])) << 8u) | - (((uint32_t)(self->private_data.f_palettes[0u][(v_j + 2u)])) << 16u) | - (((uint32_t)(self->private_data.f_palettes[0u][(v_j + 3u)])) << 24u)); - } else { - self->private_impl.f_background_color_u32_argb_premul = 77u; + v_rep_count += ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_n_extra_bits)); + v_bits >>= v_n_extra_bits; + v_n_bits -= v_n_extra_bits; + while (v_rep_count > 0u) { + if (v_i >= (v_n_lit + v_n_dist)) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_count); + goto exit; } + self->private_data.f_code_lengths[v_i] = v_rep_symbol; + v_i += 1u; + v_rep_count -= 1u; } } - while (v_i < 256u) { - self->private_data.f_palettes[0u][((4u * v_i) + 0u)] = 0u; - self->private_data.f_palettes[0u][((4u * v_i) + 1u)] = 0u; - self->private_data.f_palettes[0u][((4u * v_i) + 2u)] = 0u; - self->private_data.f_palettes[0u][((4u * v_i) + 3u)] = 255u; - v_i += 1u; + if (v_i != (v_n_lit + v_n_dist)) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_count); + goto exit; + } + if (self->private_data.f_code_lengths[256u] == 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__missing_end_of_block_code); + goto exit; + } + v_status = wuffs_deflate__decoder__init_huff(self, + 0u, + 0u, + v_n_lit, + 257u); + if (wuffs_base__status__is_error(&v_status)) { + status = v_status; + goto exit; + } + v_status = wuffs_deflate__decoder__init_huff(self, + 1u, + v_n_lit, + (v_n_lit + v_n_dist), + 0u); + if (wuffs_base__status__is_error(&v_status)) { + status = v_status; + goto exit; } + self->private_impl.f_bits = v_bits; + self->private_impl.f_n_bits = v_n_bits; goto ok; ok: - self->private_impl.p_decode_lsd[0] = 0; + self->private_impl.p_init_dynamic_huffman = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_lsd[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_lsd[0].v_flags = v_flags; - self->private_data.s_decode_lsd[0].v_background_color_index = v_background_color_index; - self->private_data.s_decode_lsd[0].v_num_palette_entries = v_num_palette_entries; - self->private_data.s_decode_lsd[0].v_i = v_i; + self->private_impl.p_init_dynamic_huffman = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_init_dynamic_huffman.v_bits = v_bits; + self->private_data.s_init_dynamic_huffman.v_n_bits = v_n_bits; + self->private_data.s_init_dynamic_huffman.v_n_lit = v_n_lit; + self->private_data.s_init_dynamic_huffman.v_n_dist = v_n_dist; + self->private_data.s_init_dynamic_huffman.v_n_clen = v_n_clen; + self->private_data.s_init_dynamic_huffman.v_i = v_i; + self->private_data.s_init_dynamic_huffman.v_mask = v_mask; + self->private_data.s_init_dynamic_huffman.v_n_extra_bits = v_n_extra_bits; + self->private_data.s_init_dynamic_huffman.v_rep_symbol = v_rep_symbol; + self->private_data.s_init_dynamic_huffman.v_rep_count = v_rep_count; goto exit; exit: @@ -38093,185 +39348,299 @@ wuffs_gif__decoder__decode_lsd( return status; } -// -------- func gif.decoder.decode_extension +// -------- func deflate.decoder.init_huff WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_extension( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_label = 0; +wuffs_deflate__decoder__init_huff( + wuffs_deflate__decoder* self, + uint32_t a_which, + uint32_t a_n_codes0, + uint32_t a_n_codes1, + uint32_t a_base_symbol) { + uint16_t v_counts[16] = {0}; + uint32_t v_i = 0; + uint32_t v_remaining = 0; + uint16_t v_offsets[16] = {0}; + uint32_t v_n_symbols = 0; + uint32_t v_count = 0; + uint16_t v_symbols[320] = {0}; + uint32_t v_min_cl = 0; + uint32_t v_max_cl = 0; + uint32_t v_initial_high_bits = 0; + uint32_t v_prev_cl = 0; + uint32_t v_prev_redirect_key = 0; + uint32_t v_top = 0; + uint32_t v_next_top = 0; + uint32_t v_code = 0; + uint32_t v_key = 0; + uint32_t v_value = 0; + uint32_t v_cl = 0; + uint32_t v_redirect_key = 0; + uint32_t v_j = 0; + uint32_t v_reversed_key = 0; + uint32_t v_symbol = 0; + uint32_t v_high_bits = 0; + uint32_t v_delta = 0; - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + v_i = a_n_codes0; + while (v_i < a_n_codes1) { + if (v_counts[((uint8_t)(self->private_data.f_code_lengths[v_i] & 15u))] >= 320u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_counts[((uint8_t)(self->private_data.f_code_lengths[v_i] & 15u))] += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_i += 1u; } - - uint32_t coro_susp_point = self->private_impl.p_decode_extension[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_label = t_0; + if ((((uint32_t)(v_counts[0u])) + a_n_codes0) == a_n_codes1) { + return wuffs_base__make_status(wuffs_deflate__error__no_huffman_codes); + } + v_remaining = 1u; + v_i = 1u; + while (v_i <= 15u) { + if (v_remaining > 1073741824u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); } - if (v_label == 249u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_gif__decoder__decode_gc(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - status = wuffs_base__make_status(NULL); - goto ok; - } else if (v_label == 255u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_gif__decoder__decode_ae(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; + v_remaining <<= 1u; + if (v_remaining < ((uint32_t)(v_counts[v_i]))) { + return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_over_subscribed); + } + v_remaining -= ((uint32_t)(v_counts[v_i])); + v_i += 1u; + } + if (v_remaining != 0u) { + if ((a_which == 1u) && (v_counts[1u] == 1u) && ((((uint32_t)(v_counts[0u])) + a_n_codes0 + 1u) == a_n_codes1)) { + v_i = 0u; + while (v_i <= 29u) { + if (self->private_data.f_code_lengths[(a_n_codes0 + v_i)] == 1u) { + self->private_impl.f_n_huffs_bits[1u] = 1u; + self->private_data.f_huffs[1u][0u] = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[v_i] | 1u); + self->private_data.f_huffs[1u][1u] = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[31u] | 1u); + return wuffs_base__make_status(NULL); + } + v_i += 1u; } - status = wuffs_base__make_status(NULL); - goto ok; } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_under_subscribed); + } + v_i = 1u; + while (v_i <= 15u) { + v_offsets[v_i] = ((uint16_t)(v_n_symbols)); + v_count = ((uint32_t)(v_counts[v_i])); + if (v_n_symbols > (320u - v_count)) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - status = wuffs_gif__decoder__skip_blocks(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + v_n_symbols = (v_n_symbols + v_count); + v_i += 1u; + } + if (v_n_symbols > 288u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_i = a_n_codes0; + while (v_i < a_n_codes1) { + if (v_i < a_n_codes0) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); } - if (status.repr) { - goto suspend; + if (self->private_data.f_code_lengths[v_i] != 0u) { + if (v_offsets[((uint8_t)(self->private_data.f_code_lengths[v_i] & 15u))] >= 320u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_symbols[v_offsets[((uint8_t)(self->private_data.f_code_lengths[v_i] & 15u))]] = ((uint16_t)((v_i - a_n_codes0))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_offsets[((uint8_t)(self->private_data.f_code_lengths[v_i] & 15u))] += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif } - - ok: - self->private_impl.p_decode_extension[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_extension[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + v_i += 1u; } - - return status; -} - -// -------- func gif.decoder.skip_blocks - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_gif__decoder__skip_blocks( - wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_block_size = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + v_min_cl = 1u; + while (true) { + if (v_counts[v_min_cl] != 0u) { + break; + } + if (v_min_cl >= 9u) { + return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_minimum_code_length); + } + v_min_cl += 1u; } - - uint32_t coro_susp_point = self->private_impl.p_skip_blocks[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_max_cl = 15u; + while (true) { + if (v_counts[v_max_cl] != 0u) { + break; + } + if (v_max_cl <= 1u) { + return wuffs_base__make_status(wuffs_deflate__error__no_huffman_codes); + } + v_max_cl -= 1u; + } + if (v_max_cl <= 9u) { + self->private_impl.f_n_huffs_bits[a_which] = v_max_cl; + } else { + self->private_impl.f_n_huffs_bits[a_which] = 9u; + } + v_i = 0u; + if ((v_n_symbols != ((uint32_t)(v_offsets[v_max_cl]))) || (v_n_symbols != ((uint32_t)(v_offsets[15u])))) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + if ((a_n_codes0 + ((uint32_t)(v_symbols[0u]))) >= 320u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_initial_high_bits = 512u; + if (v_max_cl < 9u) { + v_initial_high_bits = (((uint32_t)(1u)) << v_max_cl); + } + v_prev_cl = ((uint32_t)(((uint8_t)(self->private_data.f_code_lengths[(a_n_codes0 + ((uint32_t)(v_symbols[0u])))] & 15u)))); + v_prev_redirect_key = 4294967295u; + v_top = 0u; + v_next_top = 512u; + v_code = 0u; + v_key = 0u; + v_value = 0u; + while (true) { + if ((a_n_codes0 + ((uint32_t)(v_symbols[v_i]))) >= 320u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_cl = ((uint32_t)(((uint8_t)(self->private_data.f_code_lengths[(a_n_codes0 + ((uint32_t)(v_symbols[v_i])))] & 15u)))); + if (v_cl > v_prev_cl) { + v_code <<= (v_cl - v_prev_cl); + if (v_code >= 32768u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + } + v_prev_cl = v_cl; + v_key = v_code; + if (v_cl > 9u) { + v_cl -= 9u; + v_redirect_key = ((v_key >> v_cl) & 511u); + v_key = ((v_key) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_cl)); + if (v_prev_redirect_key != v_redirect_key) { + v_prev_redirect_key = v_redirect_key; + v_remaining = (((uint32_t)(1u)) << v_cl); + v_j = v_prev_cl; + while (v_j <= 15u) { + if (v_remaining <= ((uint32_t)(v_counts[v_j]))) { + break; + } + v_remaining -= ((uint32_t)(v_counts[v_j])); + if (v_remaining > 1073741824u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_remaining <<= 1u; + v_j += 1u; } - uint8_t t_0 = *iop_a_src++; - v_block_size = t_0; + if ((v_j <= 9u) || (15u < v_j)) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_j -= 9u; + v_initial_high_bits = (((uint32_t)(1u)) << v_j); + v_top = v_next_top; + if ((v_top + (((uint32_t)(1u)) << v_j)) > 1024u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_next_top = (v_top + (((uint32_t)(1u)) << v_j)); + v_redirect_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_redirect_key >> 1u)])) | ((v_redirect_key & 1u) << 8u)); + self->private_data.f_huffs[a_which][v_redirect_key] = (268435465u | (v_top << 8u) | (v_j << 4u)); } - if (v_block_size == 0u) { - status = wuffs_base__make_status(NULL); - goto ok; + } + if ((v_key >= 512u) || (v_counts[v_prev_cl] <= 0u)) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_counts[v_prev_cl] -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_reversed_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_key >> 1u)])) | ((v_key & 1u) << 8u)); + v_reversed_key >>= (9u - v_cl); + v_symbol = ((uint32_t)(v_symbols[v_i])); + if (v_symbol == 256u) { + v_value = (536870912u | v_cl); + } else if ((v_symbol < 256u) && (a_which == 0u)) { + v_value = (2147483648u | (v_symbol << 8u) | v_cl); + } else if (v_symbol >= a_base_symbol) { + v_symbol -= a_base_symbol; + if (a_which == 0u) { + v_value = (WUFFS_DEFLATE__LCODE_MAGIC_NUMBERS[(v_symbol & 31u)] | v_cl); + } else { + v_value = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[(v_symbol & 31u)] | v_cl); } - self->private_data.s_skip_blocks[0].scratch = ((uint32_t)(v_block_size)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (self->private_data.s_skip_blocks[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_skip_blocks[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + } else { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_high_bits = v_initial_high_bits; + v_delta = (((uint32_t)(1u)) << v_cl); + while (v_high_bits >= v_delta) { + v_high_bits -= v_delta; + if ((v_top + ((v_high_bits | v_reversed_key) & 511u)) >= 1024u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); } - iop_a_src += self->private_data.s_skip_blocks[0].scratch; + self->private_data.f_huffs[a_which][(v_top + ((v_high_bits | v_reversed_key) & 511u))] = v_value; + } + v_i += 1u; + if (v_i >= v_n_symbols) { + break; + } + v_code += 1u; + if (v_code >= 32768u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); } - - ok: - self->private_impl.p_skip_blocks[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_skip_blocks[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - - return status; + return wuffs_base__make_status(NULL); } -// -------- func gif.decoder.decode_ae +// ‼ WUFFS MULTI-FILE SECTION +x86_bmi2 +// -------- func deflate.decoder.decode_huffman_bmi2 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("bmi2") WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_ae( - wuffs_gif__decoder* self, +wuffs_deflate__decoder__decode_huffman_bmi2( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint8_t v_block_size = 0; - bool v_is_animexts = false; - bool v_is_netscape = false; - bool v_is_iccp = false; - bool v_is_xmp = false; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_table_entry = 0; + uint32_t v_table_entry_n_bits = 0; + uint64_t v_lmask = 0; + uint64_t v_dmask = 0; + uint32_t v_redir_top = 0; + uint32_t v_redir_mask = 0; + uint32_t v_length = 0; + uint32_t v_dist_minus_1 = 0; + uint32_t v_hlen = 0; + uint32_t v_hdist = 0; + uint32_t v_hdist_adjustment = 0; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -38283,214 +39652,206 @@ wuffs_gif__decoder__decode_ae( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_ae[0]; - if (coro_susp_point) { - v_block_size = self->private_data.s_decode_ae[0].v_block_size; - v_is_animexts = self->private_data.s_decode_ae[0].v_is_animexts; - v_is_netscape = self->private_data.s_decode_ae[0].v_is_netscape; - v_is_iccp = self->private_data.s_decode_ae[0].v_is_iccp; - v_is_xmp = self->private_data.s_decode_ae[0].v_is_xmp; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - do { - if (self->private_impl.f_metadata_fourcc != 0u) { - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_block_size = t_0; - } - if (v_block_size == 0u) { - status = wuffs_base__make_status(NULL); - goto ok; - } - if (v_block_size != 11u) { - self->private_data.s_decode_ae[0].scratch = ((uint32_t)(v_block_size)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_decode_ae[0].scratch; + v_bits = ((uint64_t)(self->private_impl.f_bits)); + v_n_bits = self->private_impl.f_n_bits; + v_lmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); + v_dmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); + if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { + status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); + goto exit; + } + v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); + label__loop__continue:; + while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 8u)) { + v_bits |= ((uint64_t)(wuffs_base__peek_u64le__no_bounds_check(iop_a_src) << (v_n_bits & 63u))); + iop_a_src += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; break; + } else if ((v_table_entry >> 28u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - v_is_animexts = true; - v_is_netscape = true; - v_is_iccp = true; - v_is_xmp = true; - v_block_size = 0u; - while (v_block_size < 11u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - v_is_animexts = (v_is_animexts && (v_c == WUFFS_GIF__ANIMEXTS1DOT0[v_block_size])); - v_is_netscape = (v_is_netscape && (v_c == WUFFS_GIF__NETSCAPE2DOT0[v_block_size])); - v_is_iccp = (v_is_iccp && (v_c == WUFFS_GIF__ICCRGBG1012[v_block_size])); - v_is_xmp = (v_is_xmp && (v_c == WUFFS_GIF__XMPDATAXMP[v_block_size])); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_block_size += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + v_length = (((v_table_entry >> 8u) & 255u) + 3u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + v_length = (((v_length + 253u + ((uint32_t)(((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 255u) + 3u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } + v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 28u) == 1u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } + if ((v_table_entry >> 24u) != 64u) { + if ((v_table_entry >> 24u) == 8u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; } - if (v_is_animexts || v_is_netscape) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - v_block_size = t_2; - } - if (v_block_size != 3u) { - self->private_data.s_decode_ae[0].scratch = ((uint32_t)(v_block_size)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_decode_ae[0].scratch; - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + v_dist_minus_1 = ((v_dist_minus_1 + ((uint32_t)(((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 32767u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + do { + if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_hlen = 0u; + v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_length > v_hdist) { + v_length -= v_hdist; + v_hlen = v_hdist; + } else { + v_hlen = v_length; + v_length = 0u; } - if (v_c != 1u) { - self->private_data.s_decode_ae[0].scratch = 2u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_decode_ae[0].scratch; - break; + v_hdist += v_hdist_adjustment; + if (self->private_impl.f_history_index < v_hdist) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); + goto exit; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_4 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_ae[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_ae[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; - if (num_bits_4 == 8) { - t_4 = ((uint32_t)(*scratch)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)) << 56; - } - } - self->private_impl.f_num_animation_loops_value = t_4; + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); + if (v_length == 0u) { + goto label__loop__continue; } - self->private_impl.f_seen_num_animation_loops_value = true; - if ((0u < self->private_impl.f_num_animation_loops_value) && (self->private_impl.f_num_animation_loops_value <= 65535u)) { - self->private_impl.f_num_animation_loops_value += 1u; + if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); + goto exit; } - } else if (self->private_impl.f_call_sequence >= 32u) { - } else if (v_is_iccp && self->private_impl.f_report_metadata_iccp) { - self->private_impl.f_metadata_fourcc = 1229144912u; - self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - self->private_impl.f_call_sequence = 16u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; - } else if (v_is_xmp && self->private_impl.f_report_metadata_xmp) { - self->private_impl.f_metadata_fourcc = 1481461792u; - self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - self->private_impl.f_call_sequence = 16u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; + } + if ((v_dist_minus_1 + 1u) >= 8u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else if ((v_dist_minus_1 + 1u) == 1u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); } } while (0); - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - status = wuffs_gif__decoder__skip_blocks(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; + } + if (v_n_bits > 63u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); + goto exit; } - - ok: - self->private_impl.p_decode_ae[0] = 0; + } + self->private_impl.f_bits = ((uint32_t)((v_bits & ((((uint64_t)(1u)) << v_n_bits) - 1u)))); + self->private_impl.f_n_bits = v_n_bits; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); goto exit; } - - goto suspend; - suspend: - self->private_impl.p_decode_ae[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_ae[0].v_block_size = v_block_size; - self->private_data.s_decode_ae[0].v_is_animexts = v_is_animexts; - self->private_data.s_decode_ae[0].v_is_netscape = v_is_netscape; - self->private_data.s_decode_ae[0].v_is_iccp = v_is_iccp; - self->private_data.s_decode_ae[0].v_is_xmp = v_is_xmp; - goto exit; exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } return status; } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +// ‼ WUFFS MULTI-FILE SECTION -x86_bmi2 -// -------- func gif.decoder.decode_gc +// -------- func deflate.decoder.decode_huffman_fast32 WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_gc( - wuffs_gif__decoder* self, +wuffs_deflate__decoder__decode_huffman_fast32( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint8_t v_flags = 0; - uint16_t v_gc_duration_centiseconds = 0; + uint32_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_table_entry = 0; + uint32_t v_table_entry_n_bits = 0; + uint32_t v_lmask = 0; + uint32_t v_dmask = 0; + uint32_t v_redir_top = 0; + uint32_t v_redir_mask = 0; + uint32_t v_length = 0; + uint32_t v_dist_minus_1 = 0; + uint32_t v_hlen = 0; + uint32_t v_hdist = 0; + uint32_t v_hdist_adjustment = 0; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -38502,106 +39863,205 @@ wuffs_gif__decoder__decode_gc( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_gc[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + v_bits = self->private_impl.f_bits; + v_n_bits = self->private_impl.f_n_bits; + v_lmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); + v_dmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); + if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { + status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); + goto exit; + } + v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); + label__loop__continue:; + while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 12u)) { + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + } else { } - if (v_c != 4u) { - status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); + v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + } else { + } + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); goto exit; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_length = (((v_table_entry >> 8u) & 255u) + 3u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + } else { } - uint8_t t_1 = *iop_a_src++; - v_flags = t_1; + v_length = (((v_length + 253u + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255u) + 3u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } else { } - self->private_impl.f_gc_has_transparent_index = ((v_flags & 1u) != 0u); - v_flags = ((v_flags >> 2u) & 7u); - if (v_flags == 2u) { - self->private_impl.f_gc_disposal = 1u; - } else if ((v_flags == 3u) || (v_flags == 4u)) { - self->private_impl.f_gc_disposal = 2u; + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; } else { - self->private_impl.f_gc_disposal = 0u; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint16_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_2 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - iop_a_src += 2; + v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 28u) == 1u) { + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; } else { - self->private_data.s_decode_gc[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_gc[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; - if (num_bits_2 == 8) { - t_2 = ((uint16_t)(*scratch)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; - } } - v_gc_duration_centiseconds = t_2; + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } else { } - self->private_impl.f_gc_duration = (((uint64_t)(v_gc_duration_centiseconds)) * 7056000u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if ((v_table_entry >> 24u) != 64u) { + if ((v_table_entry >> 24u) == 8u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; } - uint8_t t_3 = *iop_a_src++; - self->private_impl.f_gc_transparent_index = t_3; + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; + v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_n_bits < v_table_entry_n_bits) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; } - if (v_c != 0u) { - status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); + v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + do { + if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_hlen = 0u; + v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_length > v_hdist) { + v_length -= v_hdist; + v_hlen = v_hdist; + } else { + v_hlen = v_length; + v_length = 0u; + } + v_hdist += v_hdist_adjustment; + if (self->private_impl.f_history_index < v_hdist) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); + goto exit; + } + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); + if (v_length == 0u) { + goto label__loop__continue; + } + if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); + goto exit; + } + } + if ((v_dist_minus_1 + 1u) >= 8u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } + } while (0); + } + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); goto exit; } - - goto ok; - ok: - self->private_impl.p_decode_gc[0] = 0; + } + self->private_impl.f_bits = (v_bits & ((((uint32_t)(1u)) << v_n_bits) - 1u)); + self->private_impl.f_n_bits = v_n_bits; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); goto exit; } - - goto suspend; - suspend: - self->private_impl.p_decode_gc[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - goto exit; exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -38609,15 +40069,52 @@ wuffs_gif__decoder__decode_gc( return status; } -// -------- func gif.decoder.decode_id_part0 +// -------- func deflate.decoder.decode_huffman_fast64 WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_id_part0( - wuffs_gif__decoder* self, +wuffs_deflate__decoder__decode_huffman_fast64( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + return (*self->private_impl.choosy_decode_huffman_fast64)(self, a_dst, a_src); +} + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_table_entry = 0; + uint32_t v_table_entry_n_bits = 0; + uint64_t v_lmask = 0; + uint64_t v_dmask = 0; + uint32_t v_redir_top = 0; + uint32_t v_redir_mask = 0; + uint32_t v_length = 0; + uint32_t v_dist_minus_1 = 0; + uint32_t v_hlen = 0; + uint32_t v_hdist = 0; + uint32_t v_hdist_adjustment = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -38629,147 +40126,160 @@ wuffs_gif__decoder__decode_id_part0( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_id_part0[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_0 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + v_bits = ((uint64_t)(self->private_impl.f_bits)); + v_n_bits = self->private_impl.f_n_bits; + v_lmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); + v_dmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); + if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { + status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); + goto exit; + } + v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); + label__loop__continue:; + while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 8u)) { + v_bits |= ((uint64_t)(wuffs_base__peek_u64le__no_bounds_check(iop_a_src) << (v_n_bits & 63u))); + iop_a_src += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; } else { - self->private_data.s_decode_id_part0[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 8) { - t_0 = ((uint32_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; - } + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - self->private_impl.f_frame_rect_x0 = t_0; + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_1 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_id_part0[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 8) { - t_1 = ((uint32_t)(*scratch)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; - } - } - self->private_impl.f_frame_rect_y0 = t_1; + v_length = (((v_table_entry >> 8u) & 255u) + 3u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + v_length = (((v_length + 253u + ((uint32_t)(((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 255u) + 3u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_2 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_id_part0[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; - if (num_bits_2 == 8) { - t_2 = ((uint32_t)(*scratch)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; - } + v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 28u) == 1u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } + if ((v_table_entry >> 24u) != 64u) { + if ((v_table_entry >> 24u) == 8u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; } - self->private_impl.f_frame_rect_x1 = t_2; + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - self->private_impl.f_frame_rect_x1 += self->private_impl.f_frame_rect_x0; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_3 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_id_part0[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; - if (num_bits_3 == 8) { - t_3 = ((uint32_t)(*scratch)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)) << 56; + v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + v_dist_minus_1 = ((v_dist_minus_1 + ((uint32_t)(((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 32767u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + do { + if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_hlen = 0u; + v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_length > v_hdist) { + v_length -= v_hdist; + v_hlen = v_hdist; + } else { + v_hlen = v_length; + v_length = 0u; + } + v_hdist += v_hdist_adjustment; + if (self->private_impl.f_history_index < v_hdist) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); + goto exit; + } + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); + if (v_length == 0u) { + goto label__loop__continue; + } + if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); + goto exit; } } - self->private_impl.f_frame_rect_y1 = t_3; - } - self->private_impl.f_frame_rect_y1 += self->private_impl.f_frame_rect_y0; - self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; - self->private_impl.f_dst_y = self->private_impl.f_frame_rect_y0; - if ((self->private_impl.f_num_decoded_frame_configs_value == 0u) && ! self->private_impl.f_quirks[4u]) { - self->private_impl.f_width = wuffs_base__u32__max(self->private_impl.f_width, self->private_impl.f_frame_rect_x1); - self->private_impl.f_height = wuffs_base__u32__max(self->private_impl.f_height, self->private_impl.f_frame_rect_y1); + if ((v_dist_minus_1 + 1u) >= 8u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else if ((v_dist_minus_1 + 1u) == 1u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } + } while (0); + } + if (v_n_bits > 63u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); + goto exit; } - - goto ok; - ok: - self->private_impl.p_decode_id_part0[0] = 0; + } + self->private_impl.f_bits = ((uint32_t)((v_bits & ((((uint64_t)(1u)) << v_n_bits) - 1u)))); + self->private_impl.f_n_bits = v_n_bits; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); goto exit; } - - goto suspend; - suspend: - self->private_impl.p_decode_id_part0[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - goto exit; exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -38777,25 +40287,49 @@ wuffs_gif__decoder__decode_id_part0( return status; } -// -------- func gif.decoder.decode_id_part1 +// -------- func deflate.decoder.decode_huffman_slow WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_id_part1( - wuffs_gif__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend) { +wuffs_deflate__decoder__decode_huffman_slow( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_flags = 0; - uint8_t v_which_palette = 0; - uint32_t v_num_palette_entries = 0; - uint32_t v_i = 0; - uint32_t v_argb = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint8_t v_lw = 0; + uint32_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_table_entry = 0; + uint32_t v_table_entry_n_bits = 0; + uint32_t v_lmask = 0; + uint32_t v_dmask = 0; + uint32_t v_b0 = 0; + uint32_t v_redir_top = 0; + uint32_t v_redir_mask = 0; + uint32_t v_b1 = 0; + uint32_t v_length = 0; + uint32_t v_b2 = 0; + uint32_t v_b3 = 0; + uint32_t v_b4 = 0; + uint32_t v_dist_minus_1 = 0; + uint32_t v_b5 = 0; + uint32_t v_n_copied = 0; + uint32_t v_hlen = 0; + uint32_t v_hdist = 0; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -38807,139 +40341,275 @@ wuffs_gif__decoder__decode_id_part1( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_id_part1[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_slow; if (coro_susp_point) { - v_which_palette = self->private_data.s_decode_id_part1[0].v_which_palette; - v_num_palette_entries = self->private_data.s_decode_id_part1[0].v_num_palette_entries; - v_i = self->private_data.s_decode_id_part1[0].v_i; + v_bits = self->private_data.s_decode_huffman_slow.v_bits; + v_n_bits = self->private_data.s_decode_huffman_slow.v_n_bits; + v_table_entry_n_bits = self->private_data.s_decode_huffman_slow.v_table_entry_n_bits; + v_lmask = self->private_data.s_decode_huffman_slow.v_lmask; + v_dmask = self->private_data.s_decode_huffman_slow.v_dmask; + v_redir_top = self->private_data.s_decode_huffman_slow.v_redir_top; + v_redir_mask = self->private_data.s_decode_huffman_slow.v_redir_mask; + v_length = self->private_data.s_decode_huffman_slow.v_length; + v_dist_minus_1 = self->private_data.s_decode_huffman_slow.v_dist_minus_1; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_flags = t_0; - } - if ((v_flags & 64u) != 0u) { - self->private_impl.f_interlace = 4u; - } else { - self->private_impl.f_interlace = 0u; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; } - v_which_palette = 1u; - if ((v_flags & 128u) != 0u) { - v_num_palette_entries = (((uint32_t)(1u)) << (1u + (v_flags & 7u))); - v_i = 0u; - while (v_i < v_num_palette_entries) { + v_bits = self->private_impl.f_bits; + v_n_bits = self->private_impl.f_n_bits; + v_lmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); + v_dmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); + label__loop__continue:; + while ( ! (self->private_impl.p_decode_huffman_slow != 0)) { + while (true) { + v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { - t_1 = ((uint32_t)(wuffs_base__peek_u24be__no_bounds_check(iop_a_src))); - iop_a_src += 3; - } else { - self->private_data.s_decode_id_part1[0].scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_0 = *iop_a_src++; + v_b0 = t_0; + } + v_bits |= (v_b0 << v_n_bits); + v_n_bits += 8u; + } + if ((v_table_entry >> 31u) != 0u) { + self->private_data.s_decode_huffman_slow.scratch = ((uint8_t)((v_table_entry >> 8u))); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (iop_a_dst == io2_a_dst) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + goto suspend; + } + *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow.scratch)); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + while (true) { + v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } + { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_id_part1[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 16) { - t_1 = ((uint32_t)(*scratch >> 40)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint32_t t_1 = *iop_a_src++; + v_b1 = t_1; } - v_argb = t_1; + v_bits |= (v_b1 << v_n_bits); + v_n_bits += 8u; } - v_argb |= 4278190080u; - self->private_data.f_palettes[1u][((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); - self->private_data.f_palettes[1u][((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); - self->private_data.f_palettes[1u][((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); - self->private_data.f_palettes[1u][((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); - v_i += 1u; + if ((v_table_entry >> 31u) != 0u) { + self->private_data.s_decode_huffman_slow.scratch = ((uint8_t)((v_table_entry >> 8u))); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (iop_a_dst == io2_a_dst) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + goto suspend; + } + *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow.scratch)); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - while (v_i < 256u) { - self->private_data.f_palettes[1u][((4u * v_i) + 0u)] = 0u; - self->private_data.f_palettes[1u][((4u * v_i) + 1u)] = 0u; - self->private_data.f_palettes[1u][((4u * v_i) + 2u)] = 0u; - self->private_data.f_palettes[1u][((4u * v_i) + 3u)] = 255u; - v_i += 1u; + v_length = (((v_table_entry >> 8u) & 255u) + 3u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + while (v_n_bits < v_table_entry_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_2 = *iop_a_src++; + v_b2 = t_2; + } + v_bits |= (v_b2 << v_n_bits); + v_n_bits += 8u; + } + v_length = (((v_length + 253u + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255u) + 3u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; } - } else if (self->private_impl.f_quirks[6u] && ! self->private_impl.f_has_global_palette) { - status = wuffs_base__make_status(wuffs_gif__error__bad_palette); - goto exit; - } else if (self->private_impl.f_gc_has_transparent_index) { - wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_palettes[1u], 1024), wuffs_base__make_slice_u8(self->private_data.f_palettes[0u], 1024)); - } else { - v_which_palette = 0u; - } - if (self->private_impl.f_gc_has_transparent_index) { - self->private_data.f_palettes[1u][((4u * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 0u)] = 0u; - self->private_data.f_palettes[1u][((4u * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 1u)] = 0u; - self->private_data.f_palettes[1u][((4u * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 2u)] = 0u; - self->private_data.f_palettes[1u][((4u * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 3u)] = 0u; - } - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), - wuffs_base__utility__make_pixel_format(2198077448u), - wuffs_base__make_slice_u8(self->private_data.f_palettes[v_which_palette], 1024), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + while (true) { + v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_3 = *iop_a_src++; + v_b3 = t_3; + } + v_bits |= (v_b3 << v_n_bits); + v_n_bits += 8u; + } + if ((v_table_entry >> 28u) == 1u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + while (true) { + v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_4 = *iop_a_src++; + v_b4 = t_4; + } + v_bits |= (v_b4 << v_n_bits); + v_n_bits += 8u; + } + } + if ((v_table_entry >> 24u) != 64u) { + if ((v_table_entry >> 24u) == 8u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); goto exit; } - goto ok; - } - if (self->private_impl.f_ignored_but_affects_benchmarks) { - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + while (v_n_bits < v_table_entry_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_5 = *iop_a_src++; + v_b5 = t_5; + } + v_bits |= (v_b5 << v_n_bits); + v_n_bits += 8u; + } + v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } + while (true) { + if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_hdist < v_length) { + v_hlen = v_hdist; + } else { + v_hlen = v_length; + } + v_hdist += ((uint32_t)(((uint64_t)(self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u))))); + if (self->private_impl.f_history_index < v_hdist) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); + goto exit; + } + v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); + if (v_n_copied < v_hlen) { + v_length -= v_n_copied; + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + continue; + } + v_length -= v_hlen; + if (v_length == 0u) { + goto label__loop__continue; + } + } + v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_history( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + if (v_length <= v_n_copied) { + goto label__loop__continue; + } + v_length -= v_n_copied; + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); } - uint8_t t_2 = *iop_a_src++; - v_lw = t_2; } - if (v_lw > 8u) { - status = wuffs_base__make_status(wuffs_gif__error__bad_literal_width); + self->private_impl.f_bits = v_bits; + self->private_impl.f_n_bits = v_n_bits; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); goto exit; } - self->private_impl.f_lzw_pending_literal_width_plus_one = ((uint32_t)((1u + v_lw))); - self->private_impl.f_ignored_but_affects_benchmarks = true; ok: - self->private_impl.p_decode_id_part1[0] = 0; + self->private_impl.p_decode_huffman_slow = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_id_part1[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_id_part1[0].v_which_palette = v_which_palette; - self->private_data.s_decode_id_part1[0].v_num_palette_entries = v_num_palette_entries; - self->private_data.s_decode_id_part1[0].v_i = v_i; + self->private_impl.p_decode_huffman_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_huffman_slow.v_bits = v_bits; + self->private_data.s_decode_huffman_slow.v_n_bits = v_n_bits; + self->private_data.s_decode_huffman_slow.v_table_entry_n_bits = v_table_entry_n_bits; + self->private_data.s_decode_huffman_slow.v_lmask = v_lmask; + self->private_data.s_decode_huffman_slow.v_dmask = v_dmask; + self->private_data.s_decode_huffman_slow.v_redir_top = v_redir_top; + self->private_data.s_decode_huffman_slow.v_redir_mask = v_redir_mask; + self->private_data.s_decode_huffman_slow.v_length = v_length; + self->private_data.s_decode_huffman_slow.v_dist_minus_1 = v_dist_minus_1; goto exit; exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -38947,782 +40617,538 @@ wuffs_gif__decoder__decode_id_part1( return status; } -// -------- func gif.decoder.decode_id_part2 +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) + +// ---------------- Status Codes Implementations + +const char wuffs_gif__error__bad_lzw_code[] = "#gif: bad LZW code"; +const char wuffs_gif__error__bad_extension_label[] = "#gif: bad extension label"; +const char wuffs_gif__error__bad_frame_size[] = "#gif: bad frame size"; +const char wuffs_gif__error__bad_graphic_control[] = "#gif: bad graphic control"; +const char wuffs_gif__error__bad_header[] = "#gif: bad header"; +const char wuffs_gif__error__bad_literal_width[] = "#gif: bad literal width"; +const char wuffs_gif__error__bad_palette[] = "#gif: bad palette"; +const char wuffs_gif__error__truncated_input[] = "#gif: truncated input"; +const char wuffs_gif__error__internal_error_inconsistent_i_o[] = "#gif: internal error: inconsistent I/O"; + +// ---------------- Private Consts + +static const uint32_t +WUFFS_GIF__INTERLACE_START[5] WUFFS_BASE__POTENTIALLY_UNUSED = { + 4294967295u, 1u, 2u, 4u, 0u, +}; + +static const uint8_t +WUFFS_GIF__INTERLACE_DELTA[5] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1u, 2u, 4u, 8u, 8u, +}; + +static const uint8_t +WUFFS_GIF__INTERLACE_COUNT[5] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 2u, 4u, 8u, +}; + +static const uint8_t +WUFFS_GIF__ANIMEXTS1DOT0[11] WUFFS_BASE__POTENTIALLY_UNUSED = { + 65u, 78u, 73u, 77u, 69u, 88u, 84u, 83u, + 49u, 46u, 48u, +}; + +static const uint8_t +WUFFS_GIF__NETSCAPE2DOT0[11] WUFFS_BASE__POTENTIALLY_UNUSED = { + 78u, 69u, 84u, 83u, 67u, 65u, 80u, 69u, + 50u, 46u, 48u, +}; + +static const uint8_t +WUFFS_GIF__ICCRGBG1012[11] WUFFS_BASE__POTENTIALLY_UNUSED = { + 73u, 67u, 67u, 82u, 71u, 66u, 71u, 49u, + 48u, 49u, 50u, +}; + +static const uint8_t +WUFFS_GIF__XMPDATAXMP[11] WUFFS_BASE__POTENTIALLY_UNUSED = { + 88u, 77u, 80u, 32u, 68u, 97u, 116u, 97u, + 88u, 77u, 80u, +}; + +#define WUFFS_GIF__QUIRKS_BASE 1041635328u + +#define WUFFS_GIF__QUIRKS_COUNT 7u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gif__decoder__decode_id_part2( +wuffs_gif__decoder__do_decode_image_config( + wuffs_gif__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__do_tell_me_more( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__do_decode_frame_config( + wuffs_gif__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__skip_frame( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__do_decode_frame( wuffs_gif__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint64_t v_block_size = 0; - bool v_need_block_size = false; - uint32_t v_n_copied = 0; - uint64_t v_n_compressed = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint64_t v_mark = 0; - wuffs_base__status v_copy_status = wuffs_base__make_status(NULL); + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_gif__decoder__reset_gc( + wuffs_gif__decoder* self); - uint32_t coro_susp_point = self->private_impl.p_decode_id_part2[0]; - if (coro_susp_point) { - v_block_size = self->private_data.s_decode_id_part2[0].v_block_size; - v_need_block_size = self->private_data.s_decode_id_part2[0].v_need_block_size; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_up_to_id_part1( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); - wuffs_gif__decoder__lzw_init(self); - v_need_block_size = true; - label__outer__continue:; - while (true) { - if (v_need_block_size) { - v_need_block_size = false; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t t_0 = *iop_a_src++; - v_block_size = t_0; - } - } - if (v_block_size == 0u) { - break; - } - while (((uint64_t)(io2_a_src - iop_a_src)) == 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } - if (self->private_impl.f_compressed_ri == self->private_impl.f_compressed_wi) { - self->private_impl.f_compressed_ri = 0u; - self->private_impl.f_compressed_wi = 0u; - } - while (self->private_impl.f_compressed_wi <= 3841u) { - v_n_compressed = wuffs_base__u64__min(v_block_size, ((uint64_t)(io2_a_src - iop_a_src))); - if (v_n_compressed <= 0u) { - break; - } - v_n_copied = wuffs_base__io_reader__limited_copy_u32_to_slice( - &iop_a_src, io2_a_src,((uint32_t)(v_n_compressed)), wuffs_base__make_slice_u8_ij(self->private_data.f_compressed, self->private_impl.f_compressed_wi, 4096)); - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_compressed_wi, ((uint64_t)(v_n_copied))); - wuffs_base__u64__sat_sub_indirect(&v_block_size, ((uint64_t)(v_n_copied))); - if (v_block_size > 0u) { - break; - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - v_need_block_size = true; - break; - } - v_block_size = ((uint64_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))); - iop_a_src += 1u; - } - while (true) { - if ((self->private_impl.f_compressed_ri > self->private_impl.f_compressed_wi) || (self->private_impl.f_compressed_wi > 4096u)) { - status = wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_i_o); - goto exit; - } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_base__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_compressed, - self->private_impl.f_compressed_ri, - self->private_impl.f_compressed_wi), - 0u); - v_mark = ((uint64_t)(iop_v_r - io0_v_r)); - u_r.meta.ri = ((size_t)(iop_v_r - u_r.data.ptr)); - wuffs_gif__decoder__lzw_read_from(self, v_r); - iop_v_r = u_r.data.ptr + u_r.meta.ri; - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_compressed_ri, wuffs_base__io__count_since(v_mark, ((uint64_t)(iop_v_r - io0_v_r)))); - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; - } - if (self->private_impl.f_lzw_output_ri < self->private_impl.f_lzw_output_wi) { - v_copy_status = wuffs_gif__decoder__copy_to_image_buffer(self, a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_lzw_output, - self->private_impl.f_lzw_output_ri, - self->private_impl.f_lzw_output_wi)); - if (wuffs_base__status__is_error(&v_copy_status)) { - status = v_copy_status; - goto exit; - } - self->private_impl.f_lzw_output_ri = 0u; - self->private_impl.f_lzw_output_wi = 0u; - } - if (self->private_impl.f_lzw_read_from_return_value == 0u) { - self->private_impl.f_ignored_but_affects_benchmarks = false; - if (v_need_block_size || (v_block_size > 0u)) { - self->private_data.s_decode_id_part2[0].scratch = ((uint32_t)(v_block_size)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (self->private_data.s_decode_id_part2[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_decode_id_part2[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_decode_id_part2[0].scratch; - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - status = wuffs_gif__decoder__skip_blocks(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } - goto label__outer__break; - } else if (self->private_impl.f_lzw_read_from_return_value == 1u) { - continue; - } else if (self->private_impl.f_lzw_read_from_return_value == 2u) { - goto label__outer__continue; - } else if (self->private_impl.f_quirks[3u] && (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1) && (self->private_impl.f_interlace == 0u)) { - if (v_need_block_size || (v_block_size > 0u)) { - self->private_data.s_decode_id_part2[0].scratch = ((uint32_t)(v_block_size)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (self->private_data.s_decode_id_part2[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_decode_id_part2[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_decode_id_part2[0].scratch; - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - status = wuffs_gif__decoder__skip_blocks(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } - goto label__outer__break; - } else if (self->private_impl.f_lzw_read_from_return_value == 3u) { - status = wuffs_base__make_status(wuffs_gif__error__truncated_input); - goto exit; - } else if (self->private_impl.f_lzw_read_from_return_value == 4u) { - status = wuffs_base__make_status(wuffs_gif__error__bad_lzw_code); - goto exit; - } - status = wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_i_o); - goto exit; - } - } - label__outer__break:; - self->private_impl.f_compressed_ri = 0u; - self->private_impl.f_compressed_wi = 0u; - if ((self->private_impl.f_dst_y < self->private_impl.f_frame_rect_y1) && (self->private_impl.f_frame_rect_x0 != self->private_impl.f_frame_rect_x1) && (self->private_impl.f_frame_rect_y0 != self->private_impl.f_frame_rect_y1)) { - status = wuffs_base__make_status(wuffs_base__error__not_enough_data); - goto exit; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_header( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); - ok: - self->private_impl.p_decode_id_part2[0] = 0; - goto exit; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_lsd( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); - goto suspend; - suspend: - self->private_impl.p_decode_id_part2[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_id_part2[0].v_block_size = v_block_size; - self->private_data.s_decode_id_part2[0].v_need_block_size = v_need_block_size; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_extension( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__skip_blocks( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); - return status; -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_ae( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); -// -------- func gif.decoder.copy_to_image_buffer +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_gc( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_id_part0( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_id_part1( + wuffs_gif__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_id_part2( + wuffs_gif__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_gif__decoder__copy_to_image_buffer( wuffs_gif__decoder* self, wuffs_base__pixel_buffer* a_pb, - wuffs_base__slice_u8 a_src) { - wuffs_base__slice_u8 v_dst = {0}; - wuffs_base__slice_u8 v_src = {0}; - uint64_t v_width_in_bytes = 0; - uint64_t v_n = 0; - uint64_t v_src_ri = 0; - wuffs_base__pixel_format v_pixfmt = {0}; - uint32_t v_bytes_per_pixel = 0; - uint32_t v_bits_per_pixel = 0; - wuffs_base__table_u8 v_tab = {0}; - uint64_t v_i = 0; - uint64_t v_j = 0; - uint32_t v_replicate_y0 = 0; - uint32_t v_replicate_y1 = 0; - wuffs_base__slice_u8 v_replicate_dst = {0}; - wuffs_base__slice_u8 v_replicate_src = {0}; + wuffs_base__slice_u8 a_src); - v_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_pb); - v_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_pixfmt); - if ((v_bits_per_pixel & 7u) != 0u) { - return wuffs_base__make_status(wuffs_base__error__unsupported_option); +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_gif__decoder__lzw_init( + wuffs_gif__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_gif__decoder__lzw_read_from( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_gif__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_gif__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_gif__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_gif__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_gif__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_gif__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_gif__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_gif__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_gif__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_gif__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_gif__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_gif__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_gif__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_gif__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_gif__decoder__initialize( + wuffs_gif__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - v_bytes_per_pixel = (v_bits_per_pixel >> 3u); - v_width_in_bytes = ((uint64_t)((self->private_impl.f_width * v_bytes_per_pixel))); - v_tab = wuffs_base__pixel_buffer__plane(a_pb, 0u); - while (v_src_ri < ((uint64_t)(a_src.len))) { - v_src = wuffs_base__slice_u8__subslice_i(a_src, v_src_ri); - if (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1) { - if (self->private_impl.f_quirks[3u]) { - return wuffs_base__make_status(NULL); - } - return wuffs_base__make_status(wuffs_base__error__too_much_data); - } - v_dst = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, 0u); - } else if (v_width_in_bytes < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_width_in_bytes); - } - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_bytes_per_pixel))); - if (v_i < ((uint64_t)(v_dst.len))) { - v_j = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * ((uint64_t)(v_bytes_per_pixel))); - if ((v_i <= v_j) && (v_j <= ((uint64_t)(v_dst.len)))) { - v_dst = wuffs_base__slice_u8__subslice_ij(v_dst, v_i, v_j); - } else { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_i); - } - v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024), v_src); - wuffs_base__u64__sat_add_indirect(&v_src_ri, v_n); - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); - self->private_impl.f_dirty_max_excl_y = wuffs_base__u32__max(self->private_impl.f_dirty_max_excl_y, wuffs_base__u32__sat_add(self->private_impl.f_dst_y, 1u)); - } - if (self->private_impl.f_frame_rect_x1 <= self->private_impl.f_dst_x) { - self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; - if (self->private_impl.f_interlace == 0u) { - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_y, 1u); - continue; - } - if ((self->private_impl.f_num_decoded_frames_value == 0u) && ! self->private_impl.f_gc_has_transparent_index && (self->private_impl.f_interlace > 1u)) { - v_replicate_src = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - v_replicate_y0 = wuffs_base__u32__sat_add(self->private_impl.f_dst_y, 1u); - v_replicate_y1 = wuffs_base__u32__sat_add(self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_COUNT[self->private_impl.f_interlace]))); - v_replicate_y1 = wuffs_base__u32__min(v_replicate_y1, self->private_impl.f_frame_rect_y1); - while (v_replicate_y0 < v_replicate_y1) { - v_replicate_dst = wuffs_base__table_u8__row_u32(v_tab, v_replicate_y0); - wuffs_base__slice_u8__copy_from_slice(v_replicate_dst, v_replicate_src); - v_replicate_y0 += 1u; - } - self->private_impl.f_dirty_max_excl_y = wuffs_base__u32__max(self->private_impl.f_dirty_max_excl_y, v_replicate_y1); - } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_DELTA[self->private_impl.f_interlace]))); - while ((self->private_impl.f_interlace > 0u) && (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1)) { -#if defined(__GNUC__) + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) #pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_interlace -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" #endif - self->private_impl.f_dst_y = wuffs_base__u32__sat_add(self->private_impl.f_frame_rect_y0, WUFFS_GIF__INTERLACE_START[self->private_impl.f_interlace]); - } - continue; - } - if (((uint64_t)(a_src.len)) == v_src_ri) { - break; - } else if (((uint64_t)(a_src.len)) < v_src_ri) { - return wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_i_o); + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } - v_n = ((uint64_t)((self->private_impl.f_frame_rect_x1 - self->private_impl.f_dst_x))); - v_n = wuffs_base__u64__min(v_n, (((uint64_t)(a_src.len)) - v_src_ri)); - wuffs_base__u64__sat_add_indirect(&v_src_ri, v_n); - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); - if (self->private_impl.f_frame_rect_x1 <= self->private_impl.f_dst_x) { - self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_DELTA[self->private_impl.f_interlace]))); - while ((self->private_impl.f_interlace > 0u) && (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1)) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_interlace -= 1u; -#if defined(__GNUC__) +#if !defined(__clang__) && defined(__GNUC__) #pragma GCC diagnostic pop #endif - self->private_impl.f_dst_y = wuffs_base__u32__sat_add(self->private_impl.f_frame_rect_y0, WUFFS_GIF__INTERLACE_START[self->private_impl.f_interlace]); - } - continue; - } - if (v_src_ri != ((uint64_t)(a_src.len))) { - return wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_i_o); + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - break; } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_gif__decoder__func_ptrs_for__wuffs_base__image_decoder); return wuffs_base__make_status(NULL); } -// -------- func gif.decoder.lzw_init +wuffs_gif__decoder* +wuffs_gif__decoder__alloc(void) { + wuffs_gif__decoder* x = + (wuffs_gif__decoder*)(calloc(1, sizeof(wuffs_gif__decoder))); + if (!x) { + return NULL; + } + if (wuffs_gif__decoder__initialize( + x, sizeof(wuffs_gif__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_gif__decoder__lzw_init( - wuffs_gif__decoder* self) { - uint32_t v_i = 0; +size_t +sizeof__wuffs_gif__decoder(void) { + return sizeof(wuffs_gif__decoder); +} - self->private_impl.f_lzw_literal_width = 8u; - if (self->private_impl.f_lzw_pending_literal_width_plus_one > 0u) { - self->private_impl.f_lzw_literal_width = (self->private_impl.f_lzw_pending_literal_width_plus_one - 1u); +// ---------------- Function Implementations + +// -------- func gif.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_gif__decoder__get_quirk( + const wuffs_gif__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; } - self->private_impl.f_lzw_clear_code = (((uint32_t)(1u)) << self->private_impl.f_lzw_literal_width); - self->private_impl.f_lzw_end_code = (self->private_impl.f_lzw_clear_code + 1u); - self->private_impl.f_lzw_save_code = self->private_impl.f_lzw_end_code; - self->private_impl.f_lzw_prev_code = self->private_impl.f_lzw_end_code; - self->private_impl.f_lzw_width = (self->private_impl.f_lzw_literal_width + 1u); - self->private_impl.f_lzw_bits = 0u; - self->private_impl.f_lzw_n_bits = 0u; - self->private_impl.f_lzw_output_ri = 0u; - self->private_impl.f_lzw_output_wi = 0u; - v_i = 0u; - while (v_i < self->private_impl.f_lzw_clear_code) { - self->private_data.f_lzw_lm1s[v_i] = 0u; - self->private_data.f_lzw_suffixes[v_i][0u] = ((uint8_t)(v_i)); - v_i += 1u; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - return wuffs_base__make_empty_struct(); + + uint32_t v_key = 0; + + if (a_key >= 1041635328u) { + v_key = (a_key - 1041635328u); + if (v_key < 7u) { + if (self->private_impl.f_quirks[v_key]) { + return 1u; + } + } + } + return 0u; } -// -------- func gif.decoder.lzw_read_from +// -------- func gif.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_gif__decoder__lzw_read_from( +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_gif__decoder__set_quirk( wuffs_gif__decoder* self, - wuffs_base__io_buffer* a_src) { - uint32_t v_clear_code = 0; - uint32_t v_end_code = 0; - uint32_t v_save_code = 0; - uint32_t v_prev_code = 0; - uint32_t v_width = 0; - uint32_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_output_wi = 0; - uint32_t v_code = 0; - uint32_t v_c = 0; - uint32_t v_o = 0; - uint32_t v_steps = 0; - uint8_t v_first_byte = 0; - uint16_t v_lm1_b = 0; - uint16_t v_lm1_a = 0; + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + if ((self->private_impl.f_call_sequence == 0u) && (a_key >= 1041635328u)) { + a_key -= 1041635328u; + if (a_key < 7u) { + self->private_impl.f_quirks[a_key] = (a_value > 0u); + return wuffs_base__make_status(NULL); + } } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} - v_clear_code = self->private_impl.f_lzw_clear_code; - v_end_code = self->private_impl.f_lzw_end_code; - v_save_code = self->private_impl.f_lzw_save_code; - v_prev_code = self->private_impl.f_lzw_prev_code; - v_width = self->private_impl.f_lzw_width; - v_bits = self->private_impl.f_lzw_bits; - v_n_bits = self->private_impl.f_lzw_n_bits; - v_output_wi = self->private_impl.f_lzw_output_wi; - while (true) { - if (v_n_bits < v_width) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { - v_bits |= ((uint32_t)(wuffs_base__peek_u32le__no_bounds_check(iop_a_src) << v_n_bits)); - iop_a_src += ((31u - v_n_bits) >> 3u); - v_n_bits |= 24u; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - self->private_impl.f_lzw_read_from_return_value = 3u; - } else { - self->private_impl.f_lzw_read_from_return_value = 2u; - } - break; - } else { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - if (v_n_bits >= v_width) { - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - self->private_impl.f_lzw_read_from_return_value = 3u; - } else { - self->private_impl.f_lzw_read_from_return_value = 2u; - } - break; - } else { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - if (v_n_bits < v_width) { - self->private_impl.f_lzw_read_from_return_value = 5u; - break; - } - } - } - } - v_code = ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_width)); - v_bits >>= v_width; - v_n_bits -= v_width; - if (v_code < v_clear_code) { - self->private_data.f_lzw_output[v_output_wi] = ((uint8_t)(v_code)); - v_output_wi = ((v_output_wi + 1u) & 8191u); - if (v_save_code <= 4095u) { - v_lm1_a = (((uint16_t)(self->private_data.f_lzw_lm1s[v_prev_code] + 1u)) & 4095u); - self->private_data.f_lzw_lm1s[v_save_code] = v_lm1_a; - if ((v_lm1_a % 8u) != 0u) { - self->private_impl.f_lzw_prefixes[v_save_code] = self->private_impl.f_lzw_prefixes[v_prev_code]; - memcpy(self->private_data.f_lzw_suffixes[v_save_code],self->private_data.f_lzw_suffixes[v_prev_code], sizeof(self->private_data.f_lzw_suffixes[v_save_code])); - self->private_data.f_lzw_suffixes[v_save_code][(v_lm1_a % 8u)] = ((uint8_t)(v_code)); - } else { - self->private_impl.f_lzw_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); - self->private_data.f_lzw_suffixes[v_save_code][0u] = ((uint8_t)(v_code)); - } - v_save_code += 1u; - if (v_width < 12u) { - v_width += (1u & (v_save_code >> v_width)); - } - v_prev_code = v_code; - } - } else if (v_code <= v_end_code) { - if (v_code == v_end_code) { - self->private_impl.f_lzw_read_from_return_value = 0u; - break; - } - v_save_code = v_end_code; - v_prev_code = v_end_code; - v_width = (self->private_impl.f_lzw_literal_width + 1u); - } else if (v_code <= v_save_code) { - v_c = v_code; - if (v_code == v_save_code) { - v_c = v_prev_code; - } - v_o = ((v_output_wi + (((uint32_t)(self->private_data.f_lzw_lm1s[v_c])) & 4294967288u)) & 8191u); - v_output_wi = ((v_output_wi + 1u + ((uint32_t)(self->private_data.f_lzw_lm1s[v_c]))) & 8191u); - v_steps = (((uint32_t)(self->private_data.f_lzw_lm1s[v_c])) >> 3u); - while (true) { - memcpy((self->private_data.f_lzw_output)+(v_o), (self->private_data.f_lzw_suffixes[v_c]), 8u); - if (v_steps <= 0u) { - break; - } - v_steps -= 1u; - v_o = (((uint32_t)(v_o - 8u)) & 8191u); - v_c = ((uint32_t)(self->private_impl.f_lzw_prefixes[v_c])); - } - v_first_byte = self->private_data.f_lzw_suffixes[v_c][0u]; - if (v_code == v_save_code) { - self->private_data.f_lzw_output[v_output_wi] = v_first_byte; - v_output_wi = ((v_output_wi + 1u) & 8191u); - } - if (v_save_code <= 4095u) { - v_lm1_b = (((uint16_t)(self->private_data.f_lzw_lm1s[v_prev_code] + 1u)) & 4095u); - self->private_data.f_lzw_lm1s[v_save_code] = v_lm1_b; - if ((v_lm1_b % 8u) != 0u) { - self->private_impl.f_lzw_prefixes[v_save_code] = self->private_impl.f_lzw_prefixes[v_prev_code]; - memcpy(self->private_data.f_lzw_suffixes[v_save_code],self->private_data.f_lzw_suffixes[v_prev_code], sizeof(self->private_data.f_lzw_suffixes[v_save_code])); - self->private_data.f_lzw_suffixes[v_save_code][(v_lm1_b % 8u)] = v_first_byte; - } else { - self->private_impl.f_lzw_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); - self->private_data.f_lzw_suffixes[v_save_code][0u] = ((uint8_t)(v_first_byte)); - } - v_save_code += 1u; - if (v_width < 12u) { - v_width += (1u & (v_save_code >> v_width)); - } - v_prev_code = v_code; - } - } else { - self->private_impl.f_lzw_read_from_return_value = 4u; - break; - } - if (v_output_wi > 4095u) { - self->private_impl.f_lzw_read_from_return_value = 1u; - break; - } +// -------- func gif.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_gif__decoder__decode_image_config( + wuffs_gif__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if (self->private_impl.f_lzw_read_from_return_value != 2u) { - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - self->private_impl.f_lzw_read_from_return_value = 5u; - break; - } - } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - self->private_impl.f_lzw_save_code = v_save_code; - self->private_impl.f_lzw_prev_code = v_prev_code; - self->private_impl.f_lzw_width = v_width; - self->private_impl.f_lzw_bits = v_bits; - self->private_impl.f_lzw_n_bits = v_n_bits; - self->private_impl.f_lzw_output_wi = v_output_wi; - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - return wuffs_base__make_empty_struct(); -} - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) + wuffs_base__status v_status = wuffs_base__make_status(NULL); -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GZIP) + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -// ---------------- Status Codes Implementations + while (true) { + { + wuffs_base__status t_0 = wuffs_gif__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_gif__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } -const char wuffs_gzip__error__bad_checksum[] = "#gzip: bad checksum"; -const char wuffs_gzip__error__bad_compression_method[] = "#gzip: bad compression method"; -const char wuffs_gzip__error__bad_encoding_flags[] = "#gzip: bad encoding flags"; -const char wuffs_gzip__error__bad_header[] = "#gzip: bad header"; -const char wuffs_gzip__error__truncated_input[] = "#gzip: truncated input"; + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } -// ---------------- Private Consts + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; -// ---------------- Private Initializer Prototypes + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} -// ---------------- Private Function Prototypes +// -------- func gif.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gzip__decoder__do_transform_io( - wuffs_gzip__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); - -// ---------------- VTables - -const wuffs_base__io_transformer__func_ptrs -wuffs_gzip__decoder__func_ptrs_for__wuffs_base__io_transformer = { - (uint64_t(*)(const void*, - uint32_t))(&wuffs_gzip__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_gzip__decoder__history_retain_length), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_gzip__decoder__set_quirk), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_gzip__decoder__transform_io), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_gzip__decoder__workbuf_len), -}; +wuffs_gif__decoder__do_decode_image_config( + wuffs_gif__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// ---------------- Initializer Implementations + bool v_ffio = false; -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_gzip__decoder__initialize( - wuffs_gzip__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if ( ! self->private_impl.f_seen_header) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_gif__decoder__decode_header(self, a_src); + if (status.repr) { + goto suspend; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_gif__decoder__decode_lsd(self, a_src); + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_header = true; } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_gif__decoder__decode_up_to_id_part1(self, a_src); + if (status.repr) { + goto suspend; } - } - - { - wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( - &self->private_data.f_checksum, sizeof(self->private_data.f_checksum), WUFFS_VERSION, options); - if (z.repr) { - return z; + v_ffio = ! self->private_impl.f_gc_has_transparent_index; + if ( ! self->private_impl.f_quirks[2u]) { + v_ffio = (v_ffio && + (self->private_impl.f_frame_rect_x0 == 0u) && + (self->private_impl.f_frame_rect_y0 == 0u) && + (self->private_impl.f_frame_rect_x1 == self->private_impl.f_width) && + (self->private_impl.f_frame_rect_y1 == self->private_impl.f_height)); + } else if (v_ffio) { + self->private_impl.f_black_color_u32_argb_premul = 4278190080u; } - } - { - wuffs_base__status z = wuffs_deflate__decoder__initialize( - &self->private_data.f_flate, sizeof(self->private_data.f_flate), WUFFS_VERSION, options); - if (z.repr) { - return z; + if (self->private_impl.f_background_color_u32_argb_premul == 77u) { + self->private_impl.f_background_color_u32_argb_premul = self->private_impl.f_black_color_u32_argb_premul; + } + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + 2198077448u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + v_ffio); + } + if (self->private_impl.f_call_sequence == 0u) { + self->private_impl.f_call_sequence = 32u; } - } - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = - wuffs_base__io_transformer__vtable_name; - self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_gzip__decoder__func_ptrs_for__wuffs_base__io_transformer); - return wuffs_base__make_status(NULL); -} -wuffs_gzip__decoder* -wuffs_gzip__decoder__alloc(void) { - wuffs_gzip__decoder* x = - (wuffs_gzip__decoder*)(calloc(sizeof(wuffs_gzip__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_gzip__decoder__initialize( - x, sizeof(wuffs_gzip__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; } - return x; -} - -size_t -sizeof__wuffs_gzip__decoder(void) { - return sizeof(wuffs_gzip__decoder); -} -// ---------------- Function Implementations - -// -------- func gzip.decoder.get_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_gzip__decoder__get_quirk( - const wuffs_gzip__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { - return 1u; - } - return 0u; + goto exit; + exit: + return status; } -// -------- func gzip.decoder.set_quirk +// -------- func gif.decoder.set_report_metadata WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_gzip__decoder__set_quirk( - wuffs_gzip__decoder* self, - uint32_t a_key, - uint64_t a_value) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_gif__decoder__set_report_metadata( + wuffs_gif__decoder* self, + uint32_t a_fourcc, + bool a_report) { if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); + return wuffs_base__make_empty_struct(); } if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - if (a_key == 1u) { - self->private_impl.f_ignore_checksum = (a_value > 0u); - return wuffs_base__make_status(NULL); - } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); -} - -// -------- func gzip.decoder.history_retain_length - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_gzip__decoder__history_retain_length( - const wuffs_gzip__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + return wuffs_base__make_empty_struct(); } - return 0u; -} - -// -------- func gzip.decoder.workbuf_len - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_gzip__decoder__workbuf_len( - const wuffs_gzip__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + if (a_fourcc == 1229144912u) { + self->private_impl.f_report_metadata_iccp = a_report; + } else if (a_fourcc == 1481461792u) { + self->private_impl.f_report_metadata_xmp = a_report; } - - return wuffs_base__utility__make_range_ii_u64(1u, 1u); + return wuffs_base__make_empty_struct(); } -// -------- func gzip.decoder.transform_io +// -------- func gif.decoder.tell_me_more WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_gzip__decoder__transform_io( - wuffs_gzip__decoder* self, +wuffs_gif__decoder__tell_me_more( + wuffs_gif__decoder* self, wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -39737,7 +41163,7 @@ wuffs_gzip__decoder__transform_io( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { + (self->private_impl.active_coroutine != 2)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -39746,17 +41172,17 @@ wuffs_gzip__decoder__transform_io( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; + uint32_t coro_susp_point = self->private_impl.p_tell_me_more; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_gzip__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + wuffs_base__status t_0 = wuffs_gif__decoder__do_tell_me_more(self, a_dst, a_minfo, a_src); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_gzip__error__truncated_input); + status = wuffs_base__make_status(wuffs_gif__error__truncated_input); goto exit; } status = v_status; @@ -39764,14 +41190,14 @@ wuffs_gzip__decoder__transform_io( } ok: - self->private_impl.p_transform_io[0] = 0; + self->private_impl.p_tell_me_more = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; goto exit; exit: @@ -39781,40 +41207,19 @@ wuffs_gzip__decoder__transform_io( return status; } -// -------- func gzip.decoder.do_transform_io +// -------- func gif.decoder.do_tell_me_more WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_gzip__decoder__do_transform_io( - wuffs_gzip__decoder* self, +wuffs_gif__decoder__do_tell_me_more( + wuffs_gif__decoder* self, wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint8_t v_flags = 0; - uint16_t v_xlen = 0; - uint64_t v_mark = 0; - uint32_t v_checksum_got = 0; - uint32_t v_decoded_length_got = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t v_checksum_want = 0; - uint32_t v_decoded_length_want = 0; + uint64_t v_chunk_length = 0; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -39826,269 +41231,95 @@ wuffs_gzip__decoder__do_transform_io( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_transform_io[0]; - if (coro_susp_point) { - v_flags = self->private_data.s_do_transform_io[0].v_flags; - v_checksum_got = self->private_data.s_do_transform_io[0].v_checksum_got; - v_decoded_length_got = self->private_data.s_do_transform_io[0].v_decoded_length_got; - v_checksum_want = self->private_data.s_do_transform_io[0].v_checksum_want; - } + uint32_t coro_susp_point = self->private_impl.p_do_tell_me_more; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c != 31u) { - status = wuffs_base__make_status(wuffs_gzip__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - if (v_c != 139u) { - status = wuffs_base__make_status(wuffs_gzip__error__bad_header); + if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) == 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); goto exit; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - v_c = t_2; - } - if (v_c != 8u) { - status = wuffs_base__make_status(wuffs_gzip__error__bad_compression_method); + if (self->private_impl.f_metadata_fourcc == 0u) { + status = wuffs_base__make_status(wuffs_base__error__no_more_information); goto exit; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_flags = t_3; - } - self->private_data.s_do_transform_io[0].scratch = 6u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (self->private_data.s_do_transform_io[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_transform_io[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_transform_io[0].scratch; - if ((v_flags & 4u) != 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint16_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_4 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - iop_a_src += 2; - } else { - self->private_data.s_do_transform_io[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; - if (num_bits_4 == 8) { - t_4 = ((uint16_t)(*scratch)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)) << 56; - } - } - v_xlen = t_4; - } - self->private_data.s_do_transform_io[0].scratch = ((uint32_t)(v_xlen)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (self->private_data.s_do_transform_io[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_transform_io[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_transform_io[0].scratch; - } - if ((v_flags & 8u) != 0u) { + while (true) { while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if (wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) != self->private_impl.f_metadata_io_position) { + if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + 2u, + 0u, + self->private_impl.f_metadata_io_position, + 0u, + 0u); } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; - } - if (v_c == 0u) { - break; + status = wuffs_base__make_status(wuffs_base__suspension__mispositioned_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; } - } - } - if ((v_flags & 16u) != 0u) { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + 0u, + 0u, + 0u, + 0u, + 0u); } - uint8_t t_6 = *iop_a_src++; - v_c = t_6; - } - if (v_c == 0u) { - break; - } - } - } - if ((v_flags & 2u) != 0u) { - self->private_data.s_do_transform_io[0].scratch = 2u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - if (self->private_data.s_do_transform_io[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_transform_io[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_transform_io[0].scratch; - } - if ((v_flags & 224u) != 0u) { - status = wuffs_base__make_status(wuffs_gzip__error__bad_encoding_flags); - goto exit; - } - while (true) { - v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); - { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_7 = wuffs_deflate__decoder__transform_io(&self->private_data.f_flate, a_dst, a_src, a_workbuf); - v_status = t_7; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + continue; } + break; } - if ( ! self->private_impl.f_ignore_checksum) { - v_checksum_got = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_checksum, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); - v_decoded_length_got += ((uint32_t)(wuffs_base__io__count_since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst))))); - } - if (wuffs_base__status__is_ok(&v_status)) { + v_chunk_length = ((uint64_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))); + if (v_chunk_length <= 0u) { + iop_a_src += 1u; break; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(12); - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - uint32_t t_8; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_8 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; + if (self->private_impl.f_metadata_fourcc == 1481461792u) { + v_chunk_length += 1u; } else { - self->private_data.s_do_transform_io[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io[0].scratch; - uint32_t num_bits_8 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_8; - if (num_bits_8 == 24) { - t_8 = ((uint32_t)(*scratch)); - break; - } - num_bits_8 += 8u; - *scratch |= ((uint64_t)(num_bits_8)) << 56; - } + iop_a_src += 1u; } - v_checksum_want = t_8; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - uint32_t t_9; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_9 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_transform_io[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io[0].scratch; - uint32_t num_bits_9 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_9; - if (num_bits_9 == 24) { - t_9 = ((uint32_t)(*scratch)); - break; - } - num_bits_9 += 8u; - *scratch |= ((uint64_t)(num_bits_9)) << 56; - } + self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add(wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))), v_chunk_length); + if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + 3u, + self->private_impl.f_metadata_fourcc, + 0u, + wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))), + self->private_impl.f_metadata_io_position); } - v_decoded_length_want = t_9; + status = wuffs_base__make_status(wuffs_base__suspension__even_more_information); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); } - if ( ! self->private_impl.f_ignore_checksum && ((v_checksum_got != v_checksum_want) || (v_decoded_length_got != v_decoded_length_want))) { - status = wuffs_base__make_status(wuffs_gzip__error__bad_checksum); - goto exit; + if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + 3u, + self->private_impl.f_metadata_fourcc, + 0u, + self->private_impl.f_metadata_io_position, + self->private_impl.f_metadata_io_position); } + self->private_impl.f_call_sequence &= 239u; + self->private_impl.f_metadata_fourcc = 0u; + self->private_impl.f_metadata_io_position = 0u; + status = wuffs_base__make_status(NULL); + goto ok; ok: - self->private_impl.p_do_transform_io[0] = 0; + self->private_impl.p_do_tell_me_more = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_transform_io[0].v_flags = v_flags; - self->private_data.s_do_transform_io[0].v_checksum_got = v_checksum_got; - self->private_data.s_do_transform_io[0].v_decoded_length_got = v_decoded_length_got; - self->private_data.s_do_transform_io[0].v_checksum_want = v_checksum_want; + self->private_impl.p_do_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -40096,2260 +41327,1143 @@ wuffs_gzip__decoder__do_transform_io( return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GZIP) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JPEG) +// -------- func gif.decoder.num_animation_loops -// ---------------- Status Codes Implementations +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_gif__decoder__num_animation_loops( + const wuffs_gif__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -const char wuffs_jpeg__error__bad_dht_marker[] = "#jpeg: bad DHT marker"; -const char wuffs_jpeg__error__bad_dqt_marker[] = "#jpeg: bad DQT marker"; -const char wuffs_jpeg__error__bad_dri_marker[] = "#jpeg: bad DRI marker"; -const char wuffs_jpeg__error__bad_sof_marker[] = "#jpeg: bad SOF marker"; -const char wuffs_jpeg__error__bad_sos_marker[] = "#jpeg: bad SOS marker"; -const char wuffs_jpeg__error__bad_header[] = "#jpeg: bad header"; -const char wuffs_jpeg__error__bad_marker[] = "#jpeg: bad marker"; -const char wuffs_jpeg__error__missing_huffman_table[] = "#jpeg: missing Huffman table"; -const char wuffs_jpeg__error__missing_quantization_table[] = "#jpeg: missing Quantization table"; -const char wuffs_jpeg__error__truncated_input[] = "#jpeg: truncated input"; -const char wuffs_jpeg__error__unsupported_arithmetic_coding[] = "#jpeg: unsupported arithmetic coding"; -const char wuffs_jpeg__error__unsupported_color_model[] = "#jpeg: unsupported color model"; -const char wuffs_jpeg__error__unsupported_fractional_sampling[] = "#jpeg: unsupported fractional sampling"; -const char wuffs_jpeg__error__unsupported_hierarchical_coding[] = "#jpeg: unsupported hierarchical coding"; -const char wuffs_jpeg__error__unsupported_implicit_height[] = "#jpeg: unsupported implicit height"; -const char wuffs_jpeg__error__unsupported_lossless_coding[] = "#jpeg: unsupported lossless coding"; -const char wuffs_jpeg__error__unsupported_marker[] = "#jpeg: unsupported marker"; -const char wuffs_jpeg__error__unsupported_precision_12_bits[] = "#jpeg: unsupported precision (12 bits)"; -const char wuffs_jpeg__error__unsupported_precision_16_bits[] = "#jpeg: unsupported precision (16 bits)"; -const char wuffs_jpeg__error__unsupported_precision[] = "#jpeg: unsupported precision"; -const char wuffs_jpeg__error__unsupported_scan_count[] = "#jpeg: unsupported scan count"; -const char wuffs_jpeg__error__internal_error_inconsistent_decoder_state[] = "#jpeg: internal error: inconsistent decoder state"; + if (self->private_impl.f_seen_num_animation_loops_value) { + return self->private_impl.f_num_animation_loops_value; + } + if (self->private_impl.f_num_decoded_frame_configs_value > 1u) { + return 1u; + } + return 0u; +} -// ---------------- Private Consts +// -------- func gif.decoder.num_decoded_frame_configs -static const uint8_t -WUFFS_JPEG__UNZIG[80] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 0, 1, 8, 16, 9, 2, 3, - 10, 17, 24, 32, 25, 18, 11, 4, - 5, 12, 19, 26, 33, 40, 48, 41, - 34, 27, 20, 13, 6, 7, 14, 21, - 28, 35, 42, 49, 56, 57, 50, 43, - 36, 29, 22, 15, 23, 30, 37, 44, - 51, 58, 59, 52, 45, 38, 31, 39, - 46, 53, 60, 61, 54, 47, 55, 62, - 63, 63, 63, 63, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_gif__decoder__num_decoded_frame_configs( + const wuffs_gif__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -static const uint8_t -WUFFS_JPEG__BIAS_AND_CLAMP[1024] WUFFS_BASE__POTENTIALLY_UNUSED = { - 128, 129, 130, 131, 132, 133, 134, 135, - 136, 137, 138, 139, 140, 141, 142, 143, - 144, 145, 146, 147, 148, 149, 150, 151, - 152, 153, 154, 155, 156, 157, 158, 159, - 160, 161, 162, 163, 164, 165, 166, 167, - 168, 169, 170, 171, 172, 173, 174, 175, - 176, 177, 178, 179, 180, 181, 182, 183, - 184, 185, 186, 187, 188, 189, 190, 191, - 192, 193, 194, 195, 196, 197, 198, 199, - 200, 201, 202, 203, 204, 205, 206, 207, - 208, 209, 210, 211, 212, 213, 214, 215, - 216, 217, 218, 219, 220, 221, 222, 223, - 224, 225, 226, 227, 228, 229, 230, 231, - 232, 233, 234, 235, 236, 237, 238, 239, - 240, 241, 242, 243, 244, 245, 246, 247, - 248, 249, 250, 251, 252, 253, 254, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 2, 3, 4, 5, 6, 7, - 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, - 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 36, 37, 38, 39, - 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, - 56, 57, 58, 59, 60, 61, 62, 63, - 64, 65, 66, 67, 68, 69, 70, 71, - 72, 73, 74, 75, 76, 77, 78, 79, - 80, 81, 82, 83, 84, 85, 86, 87, - 88, 89, 90, 91, 92, 93, 94, 95, - 96, 97, 98, 99, 100, 101, 102, 103, - 104, 105, 106, 107, 108, 109, 110, 111, - 112, 113, 114, 115, 116, 117, 118, 119, - 120, 121, 122, 123, 124, 125, 126, 127, -}; + return self->private_impl.f_num_decoded_frame_configs_value; +} -static const uint16_t -WUFFS_JPEG__EXTEND[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 65535, 65533, 65529, 65521, 65505, 65473, 65409, - 65281, 65025, 64513, 63489, 61441, 57345, 49153, 32769, -}; +// -------- func gif.decoder.num_decoded_frames -static const uint8_t -WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_LUMA[29] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 0, 1, 5, 1, 1, 1, 1, - 1, 1, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 2, 3, 4, 5, 6, - 7, 8, 9, 10, 11, -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_gif__decoder__num_decoded_frames( + const wuffs_gif__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -static const uint8_t -WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_CHROMA[29] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1, 0, 3, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 0, 0, 0, 0, - 0, 0, 1, 2, 3, 4, 5, 6, - 7, 8, 9, 10, 11, -}; + return self->private_impl.f_num_decoded_frames_value; +} -static const uint8_t -WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_LUMA[179] WUFFS_BASE__POTENTIALLY_UNUSED = { - 16, 0, 2, 1, 3, 3, 2, 4, - 3, 5, 5, 4, 4, 0, 0, 1, - 125, 1, 2, 3, 0, 4, 17, 5, - 18, 33, 49, 65, 6, 19, 81, 97, - 7, 34, 113, 20, 50, 129, 145, 161, - 8, 35, 66, 177, 193, 21, 82, 209, - 240, 36, 51, 98, 114, 130, 9, 10, - 22, 23, 24, 25, 26, 37, 38, 39, - 40, 41, 42, 52, 53, 54, 55, 56, - 57, 58, 67, 68, 69, 70, 71, 72, - 73, 74, 83, 84, 85, 86, 87, 88, - 89, 90, 99, 100, 101, 102, 103, 104, - 105, 106, 115, 116, 117, 118, 119, 120, - 121, 122, 131, 132, 133, 134, 135, 136, - 137, 138, 146, 147, 148, 149, 150, 151, - 152, 153, 154, 162, 163, 164, 165, 166, - 167, 168, 169, 170, 178, 179, 180, 181, - 182, 183, 184, 185, 186, 194, 195, 196, - 197, 198, 199, 200, 201, 202, 210, 211, - 212, 213, 214, 215, 216, 217, 218, 225, - 226, 227, 228, 229, 230, 231, 232, 233, - 234, 241, 242, 243, 244, 245, 246, 247, - 248, 249, 250, -}; +// -------- func gif.decoder.frame_dirty_rect -static const uint8_t -WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_CHROMA[179] WUFFS_BASE__POTENTIALLY_UNUSED = { - 17, 0, 2, 1, 2, 4, 4, 3, - 4, 7, 5, 4, 4, 0, 1, 2, - 119, 0, 1, 2, 3, 17, 4, 5, - 33, 49, 6, 18, 65, 81, 7, 97, - 113, 19, 34, 50, 129, 8, 20, 66, - 145, 161, 177, 193, 9, 35, 51, 82, - 240, 21, 98, 114, 209, 10, 22, 36, - 52, 225, 37, 241, 23, 24, 25, 26, - 38, 39, 40, 41, 42, 53, 54, 55, - 56, 57, 58, 67, 68, 69, 70, 71, - 72, 73, 74, 83, 84, 85, 86, 87, - 88, 89, 90, 99, 100, 101, 102, 103, - 104, 105, 106, 115, 116, 117, 118, 119, - 120, 121, 122, 130, 131, 132, 133, 134, - 135, 136, 137, 138, 146, 147, 148, 149, - 150, 151, 152, 153, 154, 162, 163, 164, - 165, 166, 167, 168, 169, 170, 178, 179, - 180, 181, 182, 183, 184, 185, 186, 194, - 195, 196, 197, 198, 199, 200, 201, 202, - 210, 211, 212, 213, 214, 215, 216, 217, - 218, 226, 227, 228, 229, 230, 231, 232, - 233, 234, 242, 243, 244, 245, 246, 247, - 248, 249, 250, -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_gif__decoder__frame_dirty_rect( + const wuffs_gif__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } -// ---------------- Private Initializer Prototypes + return wuffs_base__utility__make_rect_ie_u32( + wuffs_base__u32__min(self->private_impl.f_frame_rect_x0, self->private_impl.f_width), + wuffs_base__u32__min(self->private_impl.f_frame_rect_y0, self->private_impl.f_height), + wuffs_base__u32__min(self->private_impl.f_frame_rect_x1, self->private_impl.f_width), + wuffs_base__u32__min(self->private_impl.f_dirty_max_excl_y, self->private_impl.f_height)); +} -// ---------------- Private Function Prototypes +// -------- func gif.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__decode_idct( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_dst_buffer, - uint64_t a_dst_stride, - uint32_t a_q); +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_gif__decoder__workbuf_len( + const wuffs_gif__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__decode_idct__choosy_default( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_dst_buffer, - uint64_t a_dst_stride, - uint32_t a_q); + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__decode_idct_x86_avx2( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_dst_buffer, - uint64_t a_dst_stride, - uint32_t a_q); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +// -------- func gif.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__do_decode_image_config( - wuffs_jpeg__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_gif__decoder__restart_frame( + wuffs_gif__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__decode_dqt( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src); + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } else if (a_io_position == 0u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_delayed_num_decoded_frames = false; + self->private_impl.f_frame_config_io_position = a_io_position; + self->private_impl.f_num_decoded_frame_configs_value = a_index; + self->private_impl.f_num_decoded_frames_value = a_index; + wuffs_gif__decoder__reset_gc(self); + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__decode_dri( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src); +// -------- func gif.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__decode_appn( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src, - uint8_t a_marker); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_gif__decoder__decode_frame_config( + wuffs_gif__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__decode_sof( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src); + wuffs_base__status v_status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__quantize_dimension( - const wuffs_jpeg__decoder* self, - uint32_t a_width, - uint8_t a_h, - uint8_t a_max_incl_h); + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__do_decode_frame_config( - wuffs_jpeg__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); + while (true) { + { + wuffs_base__status t_0 = wuffs_gif__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_gif__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__do_decode_frame( - wuffs_jpeg__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__decode_dht( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src); + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; -WUFFS_BASE__GENERATED_C_CODE -static bool -wuffs_jpeg__decoder__calculate_huff_tables( - wuffs_jpeg__decoder* self, - uint8_t a_tc4_th, - uint32_t a_total_count); + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__decode_sos( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); +// -------- func gif.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__prepare_scan( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src); +wuffs_gif__decoder__do_decode_frame_config( + wuffs_gif__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__use_default_huffman_table( - wuffs_jpeg__decoder* self, - uint8_t a_tc4_th); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__calculate_single_component_scan_fields( - wuffs_jpeg__decoder* self); + uint32_t v_background_color = 0; + uint8_t v_flags = 0; -WUFFS_BASE__GENERATED_C_CODE -static bool -wuffs_jpeg__decoder__calculate_multiple_component_scan_fields( - wuffs_jpeg__decoder* self); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__fill_bitstream( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src); + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + if (coro_susp_point) { + v_background_color = self->private_data.s_do_decode_frame_config.v_background_color; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks_for_single_component( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel); + self->private_impl.f_dirty_max_excl_y = 0u; + if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_gif__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_gif__decoder__skip_frame(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_call_sequence >= 96u) { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if ((self->private_impl.f_num_decoded_frame_configs_value > 0u) || (self->private_impl.f_call_sequence == 40u)) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_gif__decoder__decode_up_to_id_part1(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_call_sequence >= 96u) { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + } + v_background_color = self->private_impl.f_black_color_u32_argb_premul; + if ( ! self->private_impl.f_gc_has_transparent_index) { + v_background_color = self->private_impl.f_background_color_u32_argb_premul; + if (self->private_impl.f_quirks[1u] && (self->private_impl.f_num_decoded_frame_configs_value == 0u)) { + while (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + } + v_flags = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (((uint8_t)(v_flags & 128u)) != 0u) { + v_background_color = self->private_impl.f_black_color_u32_argb_premul; + } + } + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + wuffs_base__u32__min(self->private_impl.f_frame_rect_x0, self->private_impl.f_width), + wuffs_base__u32__min(self->private_impl.f_frame_rect_y0, self->private_impl.f_height), + wuffs_base__u32__min(self->private_impl.f_frame_rect_x1, self->private_impl.f_width), + wuffs_base__u32__min(self->private_impl.f_frame_rect_y1, self->private_impl.f_height)), + ((wuffs_base__flicks)(self->private_impl.f_gc_duration)), + self->private_impl.f_num_decoded_frame_configs_value, + self->private_impl.f_frame_config_io_position, + self->private_impl.f_gc_disposal, + ! self->private_impl.f_gc_has_transparent_index, + false, + v_background_color); + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frame_configs_value, 1u); + self->private_impl.f_call_sequence = 64u; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel); + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf); + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame_config.v_background_color = v_background_color; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__save_mcu_blocks( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__skip_past_the_next_restart_marker( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src); + return status; +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__apply_progressive_idct( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf); +// -------- func gif.decoder.skip_frame WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__swizzle_gray( - wuffs_jpeg__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); +wuffs_gif__decoder__skip_frame( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__swizzle_colorful( - wuffs_jpeg__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); + uint8_t v_flags = 0; + uint8_t v_lw = 0; -WUFFS_BASE__GENERATED_C_CODE -static bool -wuffs_jpeg__decoder__top_left_quants_has_zero( - const wuffs_jpeg__decoder* self, - uint32_t a_q); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel); + uint32_t coro_susp_point = self->private_impl.p_skip_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_flags = t_0; + } + if (((uint8_t)(v_flags & 128u)) != 0u) { + self->private_data.s_skip_frame.scratch = (((uint32_t)(3u)) << ((uint8_t)(1u + ((uint8_t)(v_flags & 7u))))); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (self->private_data.s_skip_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_skip_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_skip_frame.scratch; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_lw = t_1; + } + if (v_lw > 8u) { + status = wuffs_base__make_status(wuffs_gif__error__bad_literal_width); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_gif__decoder__skip_blocks(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_quirks[0u]) { + self->private_impl.f_delayed_num_decoded_frames = true; + } else { + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + } + wuffs_gif__decoder__reset_gc(self); + self->private_impl.f_call_sequence = 32u; -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu__choosy_default( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my); + goto ok; + ok: + self->private_impl.p_skip_frame = 0; + goto exit; + } -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my); + goto suspend; + suspend: + self->private_impl.p_skip_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my); + return status; +} + +// -------- func gif.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit( - wuffs_jpeg__decoder* self, +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_gif__decoder__decode_frame( + wuffs_gif__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my); - -// ---------------- VTables - -const wuffs_base__image_decoder__func_ptrs -wuffs_jpeg__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_jpeg__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_jpeg__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_jpeg__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_jpeg__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_jpeg__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_jpeg__decoder__history_retain_length), - (uint32_t(*)(const void*))(&wuffs_jpeg__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_jpeg__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_jpeg__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_jpeg__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_jpeg__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_jpeg__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_jpeg__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_jpeg__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_jpeg__decoder__initialize( - wuffs_jpeg__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ + wuffs_base__decode_frame_options* a_opts) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); } - - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); - } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - self->private_impl.choosy_decode_idct = &wuffs_jpeg__decoder__decode_idct__choosy_default; - self->private_impl.choosy_load_mcu_blocks_for_single_component = &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default; - self->private_impl.choosy_decode_mcu = &wuffs_jpeg__decoder__decode_mcu__choosy_default; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_jpeg__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); -} + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -wuffs_jpeg__decoder* -wuffs_jpeg__decoder__alloc(void) { - wuffs_jpeg__decoder* x = - (wuffs_jpeg__decoder*)(calloc(sizeof(wuffs_jpeg__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_jpeg__decoder__initialize( - x, sizeof(wuffs_jpeg__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + while (true) { + { + wuffs_base__status t_0 = wuffs_gif__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_gif__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; } - return x; -} -size_t -sizeof__wuffs_jpeg__decoder(void) { - return sizeof(wuffs_jpeg__decoder); -} + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; -// ---------------- Function Implementations + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} -// -------- func jpeg.decoder.decode_idct +// -------- func gif.decoder.do_decode_frame WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__decode_idct( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_dst_buffer, - uint64_t a_dst_stride, - uint32_t a_q) { - return (*self->private_impl.choosy_decode_idct)(self, a_dst_buffer, a_dst_stride, a_q); -} +static wuffs_base__status +wuffs_gif__decoder__do_decode_frame( + wuffs_gif__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__decode_idct__choosy_default( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_dst_buffer, - uint64_t a_dst_stride, - uint32_t a_q) { - uint32_t v_bq0 = 0; - uint32_t v_bq2 = 0; - uint32_t v_bq4 = 0; - uint32_t v_bq6 = 0; - uint32_t v_ca = 0; - uint32_t v_cb2 = 0; - uint32_t v_cb6 = 0; - uint32_t v_ccp = 0; - uint32_t v_ccm = 0; - uint32_t v_cd0 = 0; - uint32_t v_cd1 = 0; - uint32_t v_cd2 = 0; - uint32_t v_cd3 = 0; - uint32_t v_bq1 = 0; - uint32_t v_bq3 = 0; - uint32_t v_bq5 = 0; - uint32_t v_bq7 = 0; - uint32_t v_ci51 = 0; - uint32_t v_ci53 = 0; - uint32_t v_ci71 = 0; - uint32_t v_ci73 = 0; - uint32_t v_cj = 0; - uint32_t v_ck1 = 0; - uint32_t v_ck3 = 0; - uint32_t v_ck5 = 0; - uint32_t v_ck7 = 0; - uint32_t v_cl51 = 0; - uint32_t v_cl73 = 0; - uint32_t v_in0 = 0; - uint32_t v_in2 = 0; - uint32_t v_in4 = 0; - uint32_t v_in6 = 0; - uint32_t v_ra = 0; - uint32_t v_rb2 = 0; - uint32_t v_rb6 = 0; - uint32_t v_rcp = 0; - uint32_t v_rcm = 0; - uint32_t v_rd0 = 0; - uint32_t v_rd1 = 0; - uint32_t v_rd2 = 0; - uint32_t v_rd3 = 0; - uint32_t v_in1 = 0; - uint32_t v_in3 = 0; - uint32_t v_in5 = 0; - uint32_t v_in7 = 0; - uint32_t v_ri51 = 0; - uint32_t v_ri53 = 0; - uint32_t v_ri71 = 0; - uint32_t v_ri73 = 0; - uint32_t v_rj = 0; - uint32_t v_rk1 = 0; - uint32_t v_rk3 = 0; - uint32_t v_rk5 = 0; - uint32_t v_rk7 = 0; - uint32_t v_rl51 = 0; - uint32_t v_rl73 = 0; - uint32_t v_intermediate[64] = {0}; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (8u > a_dst_stride) { - return wuffs_base__make_empty_struct(); - } - if (0u == (self->private_data.f_mcu_blocks[0u][8u] | - self->private_data.f_mcu_blocks[0u][16u] | - self->private_data.f_mcu_blocks[0u][24u] | - self->private_data.f_mcu_blocks[0u][32u] | - self->private_data.f_mcu_blocks[0u][40u] | - self->private_data.f_mcu_blocks[0u][48u] | - self->private_data.f_mcu_blocks[0u][56u])) { - v_intermediate[0u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][0u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][0u])))) << 2u)); - v_intermediate[8u] = v_intermediate[0u]; - v_intermediate[16u] = v_intermediate[0u]; - v_intermediate[24u] = v_intermediate[0u]; - v_intermediate[32u] = v_intermediate[0u]; - v_intermediate[40u] = v_intermediate[0u]; - v_intermediate[48u] = v_intermediate[0u]; - v_intermediate[56u] = v_intermediate[0u]; - } else { - v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][16u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][16u])))); - v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][48u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][48u])))); - v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); - v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); - v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); - v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][0u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][0u])))); - v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][32u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][32u])))); - v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); - v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); - v_cd0 = ((uint32_t)(v_ccp + v_cb2)); - v_cd1 = ((uint32_t)(v_ccm + v_cb6)); - v_cd2 = ((uint32_t)(v_ccm - v_cb6)); - v_cd3 = ((uint32_t)(v_ccp - v_cb2)); - v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][8u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][8u])))); - v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][24u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][24u])))); - v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][40u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][40u])))); - v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][56u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][56u])))); - v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); - v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); - v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); - v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); - v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); - v_ck1 = ((uint32_t)(v_bq1 * 12299u)); - v_ck3 = ((uint32_t)(v_bq3 * 25172u)); - v_ck5 = ((uint32_t)(v_bq5 * 16819u)); - v_ck7 = ((uint32_t)(v_bq7 * 2446u)); - v_ci51 *= 4294964100u; - v_ci53 *= 4294946301u; - v_ci71 *= 4294959923u; - v_ci73 *= 4294951227u; - v_cl51 = ((uint32_t)(v_ci51 + v_cj)); - v_cl73 = ((uint32_t)(v_ci73 + v_cj)); - v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); - v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); - v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); - v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); - v_intermediate[0u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); - v_intermediate[56u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); - v_intermediate[8u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); - v_intermediate[48u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); - v_intermediate[16u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); - v_intermediate[40u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); - v_intermediate[24u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); - v_intermediate[32u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_gif__decoder__do_decode_frame_config(self, NULL, a_src); + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (self->private_impl.f_quirks[5u] && ((self->private_impl.f_frame_rect_x0 == self->private_impl.f_frame_rect_x1) || (self->private_impl.f_frame_rect_y0 == self->private_impl.f_frame_rect_y1))) { + status = wuffs_base__make_status(wuffs_gif__error__bad_frame_size); + goto exit; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_gif__decoder__decode_id_part1(self, a_dst, a_src, a_blend); + if (status.repr) { + goto suspend; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_gif__decoder__decode_id_part2(self, a_dst, a_src, a_workbuf); + if (status.repr) { + goto suspend; + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + wuffs_gif__decoder__reset_gc(self); + self->private_impl.f_call_sequence = 32u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; } - if (0u == (self->private_data.f_mcu_blocks[0u][9u] | - self->private_data.f_mcu_blocks[0u][17u] | - self->private_data.f_mcu_blocks[0u][25u] | - self->private_data.f_mcu_blocks[0u][33u] | - self->private_data.f_mcu_blocks[0u][41u] | - self->private_data.f_mcu_blocks[0u][49u] | - self->private_data.f_mcu_blocks[0u][57u])) { - v_intermediate[1u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][1u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][1u])))) << 2u)); - v_intermediate[9u] = v_intermediate[1u]; - v_intermediate[17u] = v_intermediate[1u]; - v_intermediate[25u] = v_intermediate[1u]; - v_intermediate[33u] = v_intermediate[1u]; - v_intermediate[41u] = v_intermediate[1u]; - v_intermediate[49u] = v_intermediate[1u]; - v_intermediate[57u] = v_intermediate[1u]; - } else { - v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][17u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][17u])))); - v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][49u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][49u])))); - v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); - v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); - v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); - v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][1u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][1u])))); - v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][33u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][33u])))); - v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); - v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); - v_cd0 = ((uint32_t)(v_ccp + v_cb2)); - v_cd1 = ((uint32_t)(v_ccm + v_cb6)); - v_cd2 = ((uint32_t)(v_ccm - v_cb6)); - v_cd3 = ((uint32_t)(v_ccp - v_cb2)); - v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][9u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][9u])))); - v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][25u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][25u])))); - v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][41u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][41u])))); - v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][57u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][57u])))); - v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); - v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); - v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); - v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); - v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); - v_ck1 = ((uint32_t)(v_bq1 * 12299u)); - v_ck3 = ((uint32_t)(v_bq3 * 25172u)); - v_ck5 = ((uint32_t)(v_bq5 * 16819u)); - v_ck7 = ((uint32_t)(v_bq7 * 2446u)); - v_ci51 *= 4294964100u; - v_ci53 *= 4294946301u; - v_ci71 *= 4294959923u; - v_ci73 *= 4294951227u; - v_cl51 = ((uint32_t)(v_ci51 + v_cj)); - v_cl73 = ((uint32_t)(v_ci73 + v_cj)); - v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); - v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); - v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); - v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); - v_intermediate[1u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); - v_intermediate[57u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); - v_intermediate[9u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); - v_intermediate[49u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); - v_intermediate[17u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); - v_intermediate[41u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); - v_intermediate[25u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); - v_intermediate[33u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func gif.decoder.reset_gc + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_gif__decoder__reset_gc( + wuffs_gif__decoder* self) { + self->private_impl.f_gc_has_transparent_index = false; + self->private_impl.f_gc_transparent_index = 0u; + self->private_impl.f_gc_disposal = 0u; + self->private_impl.f_gc_duration = 0u; + return wuffs_base__make_empty_struct(); +} + +// -------- func gif.decoder.decode_up_to_id_part1 + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_up_to_id_part1( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_block_type = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (0u == (self->private_data.f_mcu_blocks[0u][10u] | - self->private_data.f_mcu_blocks[0u][18u] | - self->private_data.f_mcu_blocks[0u][26u] | - self->private_data.f_mcu_blocks[0u][34u] | - self->private_data.f_mcu_blocks[0u][42u] | - self->private_data.f_mcu_blocks[0u][50u] | - self->private_data.f_mcu_blocks[0u][58u])) { - v_intermediate[2u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][2u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][2u])))) << 2u)); - v_intermediate[10u] = v_intermediate[2u]; - v_intermediate[18u] = v_intermediate[2u]; - v_intermediate[26u] = v_intermediate[2u]; - v_intermediate[34u] = v_intermediate[2u]; - v_intermediate[42u] = v_intermediate[2u]; - v_intermediate[50u] = v_intermediate[2u]; - v_intermediate[58u] = v_intermediate[2u]; - } else { - v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][18u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][18u])))); - v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][50u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][50u])))); - v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); - v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); - v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); - v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][2u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][2u])))); - v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][34u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][34u])))); - v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); - v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); - v_cd0 = ((uint32_t)(v_ccp + v_cb2)); - v_cd1 = ((uint32_t)(v_ccm + v_cb6)); - v_cd2 = ((uint32_t)(v_ccm - v_cb6)); - v_cd3 = ((uint32_t)(v_ccp - v_cb2)); - v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][10u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][10u])))); - v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][26u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][26u])))); - v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][42u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][42u])))); - v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][58u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][58u])))); - v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); - v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); - v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); - v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); - v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); - v_ck1 = ((uint32_t)(v_bq1 * 12299u)); - v_ck3 = ((uint32_t)(v_bq3 * 25172u)); - v_ck5 = ((uint32_t)(v_bq5 * 16819u)); - v_ck7 = ((uint32_t)(v_bq7 * 2446u)); - v_ci51 *= 4294964100u; - v_ci53 *= 4294946301u; - v_ci71 *= 4294959923u; - v_ci73 *= 4294951227u; - v_cl51 = ((uint32_t)(v_ci51 + v_cj)); - v_cl73 = ((uint32_t)(v_ci73 + v_cj)); - v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); - v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); - v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); - v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); - v_intermediate[2u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); - v_intermediate[58u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); - v_intermediate[10u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); - v_intermediate[50u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); - v_intermediate[18u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); - v_intermediate[42u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); - v_intermediate[26u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); - v_intermediate[34u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); + + uint32_t coro_susp_point = self->private_impl.p_decode_up_to_id_part1; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if ((self->private_impl.f_frame_config_io_position == 0u) || (self->private_impl.f_num_decoded_frame_configs_value > 0u)) { + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_block_type = t_0; + } + if (v_block_type == 33u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_gif__decoder__decode_extension(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (v_block_type == 44u) { + if (self->private_impl.f_delayed_num_decoded_frames) { + self->private_impl.f_delayed_num_decoded_frames = false; + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_gif__decoder__decode_id_part0(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + break; + } else { + if (self->private_impl.f_delayed_num_decoded_frames) { + self->private_impl.f_delayed_num_decoded_frames = false; + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + } + self->private_impl.f_call_sequence = 96u; + break; + } + } + + goto ok; + ok: + self->private_impl.p_decode_up_to_id_part1 = 0; + goto exit; } - if (0u == (self->private_data.f_mcu_blocks[0u][11u] | - self->private_data.f_mcu_blocks[0u][19u] | - self->private_data.f_mcu_blocks[0u][27u] | - self->private_data.f_mcu_blocks[0u][35u] | - self->private_data.f_mcu_blocks[0u][43u] | - self->private_data.f_mcu_blocks[0u][51u] | - self->private_data.f_mcu_blocks[0u][59u])) { - v_intermediate[3u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][3u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][3u])))) << 2u)); - v_intermediate[11u] = v_intermediate[3u]; - v_intermediate[19u] = v_intermediate[3u]; - v_intermediate[27u] = v_intermediate[3u]; - v_intermediate[35u] = v_intermediate[3u]; - v_intermediate[43u] = v_intermediate[3u]; - v_intermediate[51u] = v_intermediate[3u]; - v_intermediate[59u] = v_intermediate[3u]; - } else { - v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][19u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][19u])))); - v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][51u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][51u])))); - v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); - v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); - v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); - v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][3u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][3u])))); - v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][35u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][35u])))); - v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); - v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); - v_cd0 = ((uint32_t)(v_ccp + v_cb2)); - v_cd1 = ((uint32_t)(v_ccm + v_cb6)); - v_cd2 = ((uint32_t)(v_ccm - v_cb6)); - v_cd3 = ((uint32_t)(v_ccp - v_cb2)); - v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][11u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][11u])))); - v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][27u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][27u])))); - v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][43u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][43u])))); - v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][59u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][59u])))); - v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); - v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); - v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); - v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); - v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); - v_ck1 = ((uint32_t)(v_bq1 * 12299u)); - v_ck3 = ((uint32_t)(v_bq3 * 25172u)); - v_ck5 = ((uint32_t)(v_bq5 * 16819u)); - v_ck7 = ((uint32_t)(v_bq7 * 2446u)); - v_ci51 *= 4294964100u; - v_ci53 *= 4294946301u; - v_ci71 *= 4294959923u; - v_ci73 *= 4294951227u; - v_cl51 = ((uint32_t)(v_ci51 + v_cj)); - v_cl73 = ((uint32_t)(v_ci73 + v_cj)); - v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); - v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); - v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); - v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); - v_intermediate[3u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); - v_intermediate[59u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); - v_intermediate[11u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); - v_intermediate[51u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); - v_intermediate[19u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); - v_intermediate[43u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); - v_intermediate[27u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); - v_intermediate[35u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); + + goto suspend; + suspend: + self->private_impl.p_decode_up_to_id_part1 = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (0u == (self->private_data.f_mcu_blocks[0u][12u] | - self->private_data.f_mcu_blocks[0u][20u] | - self->private_data.f_mcu_blocks[0u][28u] | - self->private_data.f_mcu_blocks[0u][36u] | - self->private_data.f_mcu_blocks[0u][44u] | - self->private_data.f_mcu_blocks[0u][52u] | - self->private_data.f_mcu_blocks[0u][60u])) { - v_intermediate[4u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][4u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][4u])))) << 2u)); - v_intermediate[12u] = v_intermediate[4u]; - v_intermediate[20u] = v_intermediate[4u]; - v_intermediate[28u] = v_intermediate[4u]; - v_intermediate[36u] = v_intermediate[4u]; - v_intermediate[44u] = v_intermediate[4u]; - v_intermediate[52u] = v_intermediate[4u]; - v_intermediate[60u] = v_intermediate[4u]; - } else { - v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][20u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][20u])))); - v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][52u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][52u])))); - v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); - v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); - v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); - v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][4u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][4u])))); - v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][36u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][36u])))); - v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); - v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); - v_cd0 = ((uint32_t)(v_ccp + v_cb2)); - v_cd1 = ((uint32_t)(v_ccm + v_cb6)); - v_cd2 = ((uint32_t)(v_ccm - v_cb6)); - v_cd3 = ((uint32_t)(v_ccp - v_cb2)); - v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][12u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][12u])))); - v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][28u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][28u])))); - v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][44u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][44u])))); - v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][60u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][60u])))); - v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); - v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); - v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); - v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); - v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); - v_ck1 = ((uint32_t)(v_bq1 * 12299u)); - v_ck3 = ((uint32_t)(v_bq3 * 25172u)); - v_ck5 = ((uint32_t)(v_bq5 * 16819u)); - v_ck7 = ((uint32_t)(v_bq7 * 2446u)); - v_ci51 *= 4294964100u; - v_ci53 *= 4294946301u; - v_ci71 *= 4294959923u; - v_ci73 *= 4294951227u; - v_cl51 = ((uint32_t)(v_ci51 + v_cj)); - v_cl73 = ((uint32_t)(v_ci73 + v_cj)); - v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); - v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); - v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); - v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); - v_intermediate[4u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); - v_intermediate[60u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); - v_intermediate[12u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); - v_intermediate[52u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); - v_intermediate[20u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); - v_intermediate[44u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); - v_intermediate[28u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); - v_intermediate[36u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); + + return status; +} + +// -------- func gif.decoder.decode_header + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_header( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint64_t v_c48 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (0u == (self->private_data.f_mcu_blocks[0u][13u] | - self->private_data.f_mcu_blocks[0u][21u] | - self->private_data.f_mcu_blocks[0u][29u] | - self->private_data.f_mcu_blocks[0u][37u] | - self->private_data.f_mcu_blocks[0u][45u] | - self->private_data.f_mcu_blocks[0u][53u] | - self->private_data.f_mcu_blocks[0u][61u])) { - v_intermediate[5u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][5u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][5u])))) << 2u)); - v_intermediate[13u] = v_intermediate[5u]; - v_intermediate[21u] = v_intermediate[5u]; - v_intermediate[29u] = v_intermediate[5u]; - v_intermediate[37u] = v_intermediate[5u]; - v_intermediate[45u] = v_intermediate[5u]; - v_intermediate[53u] = v_intermediate[5u]; - v_intermediate[61u] = v_intermediate[5u]; - } else { - v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][21u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][21u])))); - v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][53u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][53u])))); - v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); - v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); - v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); - v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][5u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][5u])))); - v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][37u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][37u])))); - v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); - v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); - v_cd0 = ((uint32_t)(v_ccp + v_cb2)); - v_cd1 = ((uint32_t)(v_ccm + v_cb6)); - v_cd2 = ((uint32_t)(v_ccm - v_cb6)); - v_cd3 = ((uint32_t)(v_ccp - v_cb2)); - v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][13u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][13u])))); - v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][29u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][29u])))); - v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][45u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][45u])))); - v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][61u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][61u])))); - v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); - v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); - v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); - v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); - v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); - v_ck1 = ((uint32_t)(v_bq1 * 12299u)); - v_ck3 = ((uint32_t)(v_bq3 * 25172u)); - v_ck5 = ((uint32_t)(v_bq5 * 16819u)); - v_ck7 = ((uint32_t)(v_bq7 * 2446u)); - v_ci51 *= 4294964100u; - v_ci53 *= 4294946301u; - v_ci71 *= 4294959923u; - v_ci73 *= 4294951227u; - v_cl51 = ((uint32_t)(v_ci51 + v_cj)); - v_cl73 = ((uint32_t)(v_ci73 + v_cj)); - v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); - v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); - v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); - v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); - v_intermediate[5u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); - v_intermediate[61u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); - v_intermediate[13u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); - v_intermediate[53u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); - v_intermediate[21u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); - v_intermediate[45u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); - v_intermediate[29u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); - v_intermediate[37u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); + + uint32_t coro_susp_point = self->private_impl.p_decode_header; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { + t_0 = ((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))); + iop_a_src += 6; + } else { + self->private_data.s_decode_header.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_header.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 40) { + t_0 = ((uint64_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_c48 = t_0; + } + if ((v_c48 != 106889795225927u) && (v_c48 != 106898385160519u)) { + status = wuffs_base__make_status(wuffs_gif__error__bad_header); + goto exit; + } + + goto ok; + ok: + self->private_impl.p_decode_header = 0; + goto exit; } - if (0u == (self->private_data.f_mcu_blocks[0u][14u] | - self->private_data.f_mcu_blocks[0u][22u] | - self->private_data.f_mcu_blocks[0u][30u] | - self->private_data.f_mcu_blocks[0u][38u] | - self->private_data.f_mcu_blocks[0u][46u] | - self->private_data.f_mcu_blocks[0u][54u] | - self->private_data.f_mcu_blocks[0u][62u])) { - v_intermediate[6u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][6u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][6u])))) << 2u)); - v_intermediate[14u] = v_intermediate[6u]; - v_intermediate[22u] = v_intermediate[6u]; - v_intermediate[30u] = v_intermediate[6u]; - v_intermediate[38u] = v_intermediate[6u]; - v_intermediate[46u] = v_intermediate[6u]; - v_intermediate[54u] = v_intermediate[6u]; - v_intermediate[62u] = v_intermediate[6u]; - } else { - v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][22u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][22u])))); - v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][54u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][54u])))); - v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); - v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); - v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); - v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][6u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][6u])))); - v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][38u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][38u])))); - v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); - v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); - v_cd0 = ((uint32_t)(v_ccp + v_cb2)); - v_cd1 = ((uint32_t)(v_ccm + v_cb6)); - v_cd2 = ((uint32_t)(v_ccm - v_cb6)); - v_cd3 = ((uint32_t)(v_ccp - v_cb2)); - v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][14u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][14u])))); - v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][30u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][30u])))); - v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][46u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][46u])))); - v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][62u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][62u])))); - v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); - v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); - v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); - v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); - v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); - v_ck1 = ((uint32_t)(v_bq1 * 12299u)); - v_ck3 = ((uint32_t)(v_bq3 * 25172u)); - v_ck5 = ((uint32_t)(v_bq5 * 16819u)); - v_ck7 = ((uint32_t)(v_bq7 * 2446u)); - v_ci51 *= 4294964100u; - v_ci53 *= 4294946301u; - v_ci71 *= 4294959923u; - v_ci73 *= 4294951227u; - v_cl51 = ((uint32_t)(v_ci51 + v_cj)); - v_cl73 = ((uint32_t)(v_ci73 + v_cj)); - v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); - v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); - v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); - v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); - v_intermediate[6u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); - v_intermediate[62u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); - v_intermediate[14u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); - v_intermediate[54u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); - v_intermediate[22u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); - v_intermediate[46u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); - v_intermediate[30u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); - v_intermediate[38u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); + + goto suspend; + suspend: + self->private_impl.p_decode_header = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (0u == (self->private_data.f_mcu_blocks[0u][15u] | - self->private_data.f_mcu_blocks[0u][23u] | - self->private_data.f_mcu_blocks[0u][31u] | - self->private_data.f_mcu_blocks[0u][39u] | - self->private_data.f_mcu_blocks[0u][47u] | - self->private_data.f_mcu_blocks[0u][55u] | - self->private_data.f_mcu_blocks[0u][63u])) { - v_intermediate[7u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][7u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][7u])))) << 2u)); - v_intermediate[15u] = v_intermediate[7u]; - v_intermediate[23u] = v_intermediate[7u]; - v_intermediate[31u] = v_intermediate[7u]; - v_intermediate[39u] = v_intermediate[7u]; - v_intermediate[47u] = v_intermediate[7u]; - v_intermediate[55u] = v_intermediate[7u]; - v_intermediate[63u] = v_intermediate[7u]; - } else { - v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][23u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][23u])))); - v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][55u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][55u])))); - v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); - v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); - v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); - v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][7u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][7u])))); - v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][39u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][39u])))); - v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); - v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); - v_cd0 = ((uint32_t)(v_ccp + v_cb2)); - v_cd1 = ((uint32_t)(v_ccm + v_cb6)); - v_cd2 = ((uint32_t)(v_ccm - v_cb6)); - v_cd3 = ((uint32_t)(v_ccp - v_cb2)); - v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][15u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][15u])))); - v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][31u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][31u])))); - v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][47u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][47u])))); - v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][63u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][63u])))); - v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); - v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); - v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); - v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); - v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); - v_ck1 = ((uint32_t)(v_bq1 * 12299u)); - v_ck3 = ((uint32_t)(v_bq3 * 25172u)); - v_ck5 = ((uint32_t)(v_bq5 * 16819u)); - v_ck7 = ((uint32_t)(v_bq7 * 2446u)); - v_ci51 *= 4294964100u; - v_ci53 *= 4294946301u; - v_ci71 *= 4294959923u; - v_ci73 *= 4294951227u; - v_cl51 = ((uint32_t)(v_ci51 + v_cj)); - v_cl73 = ((uint32_t)(v_ci73 + v_cj)); - v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); - v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); - v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); - v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); - v_intermediate[7u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); - v_intermediate[63u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); - v_intermediate[15u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); - v_intermediate[55u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); - v_intermediate[23u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); - v_intermediate[47u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); - v_intermediate[31u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); - v_intermediate[39u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); + + return status; +} + +// -------- func gif.decoder.decode_lsd + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_lsd( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_flags = 0; + uint8_t v_background_color_index = 0; + uint32_t v_num_palette_entries = 0; + uint32_t v_i = 0; + uint32_t v_j = 0; + uint32_t v_argb = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (0u == (v_intermediate[1u] | - v_intermediate[2u] | - v_intermediate[3u] | - v_intermediate[4u] | - v_intermediate[5u] | - v_intermediate[6u] | - v_intermediate[7u])) { - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[0u] + 16u)) >> 5u) & 1023u)]; - a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } else { - v_in2 = v_intermediate[2u]; - v_in6 = v_intermediate[6u]; - v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); - v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); - v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); - v_in0 = v_intermediate[0u]; - v_in4 = v_intermediate[4u]; - v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); - v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); - v_rd0 = ((uint32_t)(v_rcp + v_rb2)); - v_rd1 = ((uint32_t)(v_rcm + v_rb6)); - v_rd2 = ((uint32_t)(v_rcm - v_rb6)); - v_rd3 = ((uint32_t)(v_rcp - v_rb2)); - v_in1 = v_intermediate[1u]; - v_in3 = v_intermediate[3u]; - v_in5 = v_intermediate[5u]; - v_in7 = v_intermediate[7u]; - v_ri51 = ((uint32_t)(v_in5 + v_in1)); - v_ri53 = ((uint32_t)(v_in5 + v_in3)); - v_ri71 = ((uint32_t)(v_in7 + v_in1)); - v_ri73 = ((uint32_t)(v_in7 + v_in3)); - v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); - v_rk1 = ((uint32_t)(v_in1 * 12299u)); - v_rk3 = ((uint32_t)(v_in3 * 25172u)); - v_rk5 = ((uint32_t)(v_in5 * 16819u)); - v_rk7 = ((uint32_t)(v_in7 * 2446u)); - v_ri51 *= 4294964100u; - v_ri53 *= 4294946301u; - v_ri71 *= 4294959923u; - v_ri73 *= 4294951227u; - v_rl51 = ((uint32_t)(v_ri51 + v_rj)); - v_rl73 = ((uint32_t)(v_ri73 + v_rj)); - v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); - v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); - v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); - v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + + uint32_t coro_susp_point = self->private_impl.p_decode_lsd; + if (coro_susp_point) { + v_flags = self->private_data.s_decode_lsd.v_flags; + v_background_color_index = self->private_data.s_decode_lsd.v_background_color_index; + v_num_palette_entries = self->private_data.s_decode_lsd.v_num_palette_entries; + v_i = self->private_data.s_decode_lsd.v_i; } - if (0u == (v_intermediate[9u] | - v_intermediate[10u] | - v_intermediate[11u] | - v_intermediate[12u] | - v_intermediate[13u] | - v_intermediate[14u] | - v_intermediate[15u])) { - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_0 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_lsd.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_lsd.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 8) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + self->private_impl.f_width = t_0; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[8u] + 16u)) >> 5u) & 1023u)]; - a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } else { - v_in2 = v_intermediate[10u]; - v_in6 = v_intermediate[14u]; - v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); - v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); - v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); - v_in0 = v_intermediate[8u]; - v_in4 = v_intermediate[12u]; - v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); - v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); - v_rd0 = ((uint32_t)(v_rcp + v_rb2)); - v_rd1 = ((uint32_t)(v_rcm + v_rb6)); - v_rd2 = ((uint32_t)(v_rcm - v_rb6)); - v_rd3 = ((uint32_t)(v_rcp - v_rb2)); - v_in1 = v_intermediate[9u]; - v_in3 = v_intermediate[11u]; - v_in5 = v_intermediate[13u]; - v_in7 = v_intermediate[15u]; - v_ri51 = ((uint32_t)(v_in5 + v_in1)); - v_ri53 = ((uint32_t)(v_in5 + v_in3)); - v_ri71 = ((uint32_t)(v_in7 + v_in1)); - v_ri73 = ((uint32_t)(v_in7 + v_in3)); - v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); - v_rk1 = ((uint32_t)(v_in1 * 12299u)); - v_rk3 = ((uint32_t)(v_in3 * 25172u)); - v_rk5 = ((uint32_t)(v_in5 * 16819u)); - v_rk7 = ((uint32_t)(v_in7 * 2446u)); - v_ri51 *= 4294964100u; - v_ri53 *= 4294946301u; - v_ri71 *= 4294959923u; - v_ri73 *= 4294951227u; - v_rl51 = ((uint32_t)(v_ri51 + v_rj)); - v_rl73 = ((uint32_t)(v_ri73 + v_rj)); - v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); - v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); - v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); - v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_1 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_lsd.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_lsd.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 8) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + self->private_impl.f_height = t_1; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } - if (0u == (v_intermediate[17u] | - v_intermediate[18u] | - v_intermediate[19u] | - v_intermediate[20u] | - v_intermediate[21u] | - v_intermediate[22u] | - v_intermediate[23u])) { - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_flags = t_2; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[16u] + 16u)) >> 5u) & 1023u)]; - a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } else { - v_in2 = v_intermediate[18u]; - v_in6 = v_intermediate[22u]; - v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); - v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); - v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); - v_in0 = v_intermediate[16u]; - v_in4 = v_intermediate[20u]; - v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); - v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); - v_rd0 = ((uint32_t)(v_rcp + v_rb2)); - v_rd1 = ((uint32_t)(v_rcm + v_rb6)); - v_rd2 = ((uint32_t)(v_rcm - v_rb6)); - v_rd3 = ((uint32_t)(v_rcp - v_rb2)); - v_in1 = v_intermediate[17u]; - v_in3 = v_intermediate[19u]; - v_in5 = v_intermediate[21u]; - v_in7 = v_intermediate[23u]; - v_ri51 = ((uint32_t)(v_in5 + v_in1)); - v_ri53 = ((uint32_t)(v_in5 + v_in3)); - v_ri71 = ((uint32_t)(v_in7 + v_in1)); - v_ri73 = ((uint32_t)(v_in7 + v_in3)); - v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); - v_rk1 = ((uint32_t)(v_in1 * 12299u)); - v_rk3 = ((uint32_t)(v_in3 * 25172u)); - v_rk5 = ((uint32_t)(v_in5 * 16819u)); - v_rk7 = ((uint32_t)(v_in7 * 2446u)); - v_ri51 *= 4294964100u; - v_ri53 *= 4294946301u; - v_ri71 *= 4294959923u; - v_ri73 *= 4294951227u; - v_rl51 = ((uint32_t)(v_ri51 + v_rj)); - v_rl73 = ((uint32_t)(v_ri73 + v_rj)); - v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); - v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); - v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); - v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_background_color_index = t_3; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } - if (0u == (v_intermediate[25u] | - v_intermediate[26u] | - v_intermediate[27u] | - v_intermediate[28u] | - v_intermediate[29u] | - v_intermediate[30u] | - v_intermediate[31u])) { - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[24u] + 16u)) >> 5u) & 1023u)]; - a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } else { - v_in2 = v_intermediate[26u]; - v_in6 = v_intermediate[30u]; - v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); - v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); - v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); - v_in0 = v_intermediate[24u]; - v_in4 = v_intermediate[28u]; - v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); - v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); - v_rd0 = ((uint32_t)(v_rcp + v_rb2)); - v_rd1 = ((uint32_t)(v_rcm + v_rb6)); - v_rd2 = ((uint32_t)(v_rcm - v_rb6)); - v_rd3 = ((uint32_t)(v_rcp - v_rb2)); - v_in1 = v_intermediate[25u]; - v_in3 = v_intermediate[27u]; - v_in5 = v_intermediate[29u]; - v_in7 = v_intermediate[31u]; - v_ri51 = ((uint32_t)(v_in5 + v_in1)); - v_ri53 = ((uint32_t)(v_in5 + v_in3)); - v_ri71 = ((uint32_t)(v_in7 + v_in1)); - v_ri73 = ((uint32_t)(v_in7 + v_in3)); - v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); - v_rk1 = ((uint32_t)(v_in1 * 12299u)); - v_rk3 = ((uint32_t)(v_in3 * 25172u)); - v_rk5 = ((uint32_t)(v_in5 * 16819u)); - v_rk7 = ((uint32_t)(v_in7 * 2446u)); - v_ri51 *= 4294964100u; - v_ri53 *= 4294946301u; - v_ri71 *= 4294959923u; - v_ri73 *= 4294951227u; - v_rl51 = ((uint32_t)(v_ri51 + v_rj)); - v_rl73 = ((uint32_t)(v_ri73 + v_rj)); - v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); - v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); - v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); - v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } - if (0u == (v_intermediate[33u] | - v_intermediate[34u] | - v_intermediate[35u] | - v_intermediate[36u] | - v_intermediate[37u] | - v_intermediate[38u] | - v_intermediate[39u])) { - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + iop_a_src++; + v_i = 0u; + self->private_impl.f_has_global_palette = (((uint8_t)(v_flags & 128u)) != 0u); + if (self->private_impl.f_has_global_palette) { + v_num_palette_entries = (((uint32_t)(1u)) << ((uint8_t)(1u + ((uint8_t)(v_flags & 7u))))); + while (v_i < v_num_palette_entries) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { + t_4 = ((uint32_t)(wuffs_base__peek_u24be__no_bounds_check(iop_a_src))); + iop_a_src += 3; + } else { + self->private_data.s_decode_lsd.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_lsd.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 16) { + t_4 = ((uint32_t)(*scratch >> 40)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); + } + } + v_argb = t_4; + } + v_argb |= 4278190080u; + self->private_data.f_palettes[0u][((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); + self->private_data.f_palettes[0u][((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); + self->private_data.f_palettes[0u][((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); + self->private_data.f_palettes[0u][((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); + v_i += 1u; + } + if (self->private_impl.f_quirks[2u]) { + if ((v_background_color_index != 0u) && (((uint32_t)(v_background_color_index)) < v_num_palette_entries)) { + v_j = (4u * ((uint32_t)(v_background_color_index))); + self->private_impl.f_background_color_u32_argb_premul = ((((uint32_t)(self->private_data.f_palettes[0u][(v_j + 0u)])) << 0u) | + (((uint32_t)(self->private_data.f_palettes[0u][(v_j + 1u)])) << 8u) | + (((uint32_t)(self->private_data.f_palettes[0u][(v_j + 2u)])) << 16u) | + (((uint32_t)(self->private_data.f_palettes[0u][(v_j + 3u)])) << 24u)); + } else { + self->private_impl.f_background_color_u32_argb_premul = 77u; + } + } } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[32u] + 16u)) >> 5u) & 1023u)]; - a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } else { - v_in2 = v_intermediate[34u]; - v_in6 = v_intermediate[38u]; - v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); - v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); - v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); - v_in0 = v_intermediate[32u]; - v_in4 = v_intermediate[36u]; - v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); - v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); - v_rd0 = ((uint32_t)(v_rcp + v_rb2)); - v_rd1 = ((uint32_t)(v_rcm + v_rb6)); - v_rd2 = ((uint32_t)(v_rcm - v_rb6)); - v_rd3 = ((uint32_t)(v_rcp - v_rb2)); - v_in1 = v_intermediate[33u]; - v_in3 = v_intermediate[35u]; - v_in5 = v_intermediate[37u]; - v_in7 = v_intermediate[39u]; - v_ri51 = ((uint32_t)(v_in5 + v_in1)); - v_ri53 = ((uint32_t)(v_in5 + v_in3)); - v_ri71 = ((uint32_t)(v_in7 + v_in1)); - v_ri73 = ((uint32_t)(v_in7 + v_in3)); - v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); - v_rk1 = ((uint32_t)(v_in1 * 12299u)); - v_rk3 = ((uint32_t)(v_in3 * 25172u)); - v_rk5 = ((uint32_t)(v_in5 * 16819u)); - v_rk7 = ((uint32_t)(v_in7 * 2446u)); - v_ri51 *= 4294964100u; - v_ri53 *= 4294946301u; - v_ri71 *= 4294959923u; - v_ri73 *= 4294951227u; - v_rl51 = ((uint32_t)(v_ri51 + v_rj)); - v_rl73 = ((uint32_t)(v_ri73 + v_rj)); - v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); - v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); - v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); - v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + while (v_i < 256u) { + self->private_data.f_palettes[0u][((4u * v_i) + 0u)] = 0u; + self->private_data.f_palettes[0u][((4u * v_i) + 1u)] = 0u; + self->private_data.f_palettes[0u][((4u * v_i) + 2u)] = 0u; + self->private_data.f_palettes[0u][((4u * v_i) + 3u)] = 255u; + v_i += 1u; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + + goto ok; + ok: + self->private_impl.p_decode_lsd = 0; + goto exit; } - if (0u == (v_intermediate[41u] | - v_intermediate[42u] | - v_intermediate[43u] | - v_intermediate[44u] | - v_intermediate[45u] | - v_intermediate[46u] | - v_intermediate[47u])) { - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[40u] + 16u)) >> 5u) & 1023u)]; - a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } else { - v_in2 = v_intermediate[42u]; - v_in6 = v_intermediate[46u]; - v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); - v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); - v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); - v_in0 = v_intermediate[40u]; - v_in4 = v_intermediate[44u]; - v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); - v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); - v_rd0 = ((uint32_t)(v_rcp + v_rb2)); - v_rd1 = ((uint32_t)(v_rcm + v_rb6)); - v_rd2 = ((uint32_t)(v_rcm - v_rb6)); - v_rd3 = ((uint32_t)(v_rcp - v_rb2)); - v_in1 = v_intermediate[41u]; - v_in3 = v_intermediate[43u]; - v_in5 = v_intermediate[45u]; - v_in7 = v_intermediate[47u]; - v_ri51 = ((uint32_t)(v_in5 + v_in1)); - v_ri53 = ((uint32_t)(v_in5 + v_in3)); - v_ri71 = ((uint32_t)(v_in7 + v_in1)); - v_ri73 = ((uint32_t)(v_in7 + v_in3)); - v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); - v_rk1 = ((uint32_t)(v_in1 * 12299u)); - v_rk3 = ((uint32_t)(v_in3 * 25172u)); - v_rk5 = ((uint32_t)(v_in5 * 16819u)); - v_rk7 = ((uint32_t)(v_in7 * 2446u)); - v_ri51 *= 4294964100u; - v_ri53 *= 4294946301u; - v_ri71 *= 4294959923u; - v_ri73 *= 4294951227u; - v_rl51 = ((uint32_t)(v_ri51 + v_rj)); - v_rl73 = ((uint32_t)(v_ri73 + v_rj)); - v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); - v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); - v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); - v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + + goto suspend; + suspend: + self->private_impl.p_decode_lsd = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_lsd.v_flags = v_flags; + self->private_data.s_decode_lsd.v_background_color_index = v_background_color_index; + self->private_data.s_decode_lsd.v_num_palette_entries = v_num_palette_entries; + self->private_data.s_decode_lsd.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (0u == (v_intermediate[49u] | - v_intermediate[50u] | - v_intermediate[51u] | - v_intermediate[52u] | - v_intermediate[53u] | - v_intermediate[54u] | - v_intermediate[55u])) { - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + + return status; +} + +// -------- func gif.decoder.decode_extension + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_gif__decoder__decode_extension( + wuffs_gif__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_label = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_extension; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_label = t_0; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[48u] + 16u)) >> 5u) & 1023u)]; - a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } else { - v_in2 = v_intermediate[50u]; - v_in6 = v_intermediate[54u]; - v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); - v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); - v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); - v_in0 = v_intermediate[48u]; - v_in4 = v_intermediate[52u]; - v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); - v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); - v_rd0 = ((uint32_t)(v_rcp + v_rb2)); - v_rd1 = ((uint32_t)(v_rcm + v_rb6)); - v_rd2 = ((uint32_t)(v_rcm - v_rb6)); - v_rd3 = ((uint32_t)(v_rcp - v_rb2)); - v_in1 = v_intermediate[49u]; - v_in3 = v_intermediate[51u]; - v_in5 = v_intermediate[53u]; - v_in7 = v_intermediate[55u]; - v_ri51 = ((uint32_t)(v_in5 + v_in1)); - v_ri53 = ((uint32_t)(v_in5 + v_in3)); - v_ri71 = ((uint32_t)(v_in7 + v_in1)); - v_ri73 = ((uint32_t)(v_in7 + v_in3)); - v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); - v_rk1 = ((uint32_t)(v_in1 * 12299u)); - v_rk3 = ((uint32_t)(v_in3 * 25172u)); - v_rk5 = ((uint32_t)(v_in5 * 16819u)); - v_rk7 = ((uint32_t)(v_in7 * 2446u)); - v_ri51 *= 4294964100u; - v_ri53 *= 4294946301u; - v_ri71 *= 4294959923u; - v_ri73 *= 4294951227u; - v_rl51 = ((uint32_t)(v_ri51 + v_rj)); - v_rl73 = ((uint32_t)(v_ri73 + v_rj)); - v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); - v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); - v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); - v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + if (v_label == 249u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_gif__decoder__decode_gc(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + status = wuffs_base__make_status(NULL); + goto ok; + } else if (v_label == 255u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_gif__decoder__decode_ae(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + status = wuffs_base__make_status(NULL); + goto ok; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - } - if (0u == (v_intermediate[57u] | - v_intermediate[58u] | - v_intermediate[59u] | - v_intermediate[60u] | - v_intermediate[61u] | - v_intermediate[62u] | - v_intermediate[63u])) { - if (8u > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[56u] + 16u)) >> 5u) & 1023u)]; - a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; - a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; - } else { - v_in2 = v_intermediate[58u]; - v_in6 = v_intermediate[62u]; - v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); - v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); - v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); - v_in0 = v_intermediate[56u]; - v_in4 = v_intermediate[60u]; - v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); - v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); - v_rd0 = ((uint32_t)(v_rcp + v_rb2)); - v_rd1 = ((uint32_t)(v_rcm + v_rb6)); - v_rd2 = ((uint32_t)(v_rcm - v_rb6)); - v_rd3 = ((uint32_t)(v_rcp - v_rb2)); - v_in1 = v_intermediate[57u]; - v_in3 = v_intermediate[59u]; - v_in5 = v_intermediate[61u]; - v_in7 = v_intermediate[63u]; - v_ri51 = ((uint32_t)(v_in5 + v_in1)); - v_ri53 = ((uint32_t)(v_in5 + v_in3)); - v_ri71 = ((uint32_t)(v_in7 + v_in1)); - v_ri73 = ((uint32_t)(v_in7 + v_in3)); - v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); - v_rk1 = ((uint32_t)(v_in1 * 12299u)); - v_rk3 = ((uint32_t)(v_in3 * 25172u)); - v_rk5 = ((uint32_t)(v_in5 * 16819u)); - v_rk7 = ((uint32_t)(v_in7 * 2446u)); - v_ri51 *= 4294964100u; - v_ri53 *= 4294946301u; - v_ri71 *= 4294959923u; - v_ri73 *= 4294951227u; - v_rl51 = ((uint32_t)(v_ri51 + v_rj)); - v_rl73 = ((uint32_t)(v_ri73 + v_rj)); - v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); - v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); - v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); - v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); - if (8u > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_gif__decoder__skip_blocks(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; - a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + if (status.repr) { + goto suspend; + } + + ok: + self->private_impl.p_decode_extension = 0; + goto exit; } - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_decode_extension = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -// ‼ WUFFS MULTI-FILE SECTION +x86_avx2 -// -------- func jpeg.decoder.decode_idct_x86_avx2 +// -------- func gif.decoder.skip_blocks -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__decode_idct_x86_avx2( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_dst_buffer, - uint64_t a_dst_stride, - uint32_t a_q) { - __m256i v_k_0000 = {0}; - __m256i v_k_8080 = {0}; - __m256i v_k_0000_0002 = {0}; - __m256i v_k_0001_FFFF = {0}; - __m256i v_k_0400_0000 = {0}; - __m256i v_k_29CF_1151_D630_1151 = {0}; - __m256i v_k_E333_133E_ADFD_1051 = {0}; - __m256i v_k_E6DC_25A1_1925_25A1 = {0}; - __m256i v_k_ECC1_E333_EFB0_ADFD = {0}; - __m128i v_az_coeffs = {0}; - __m256i v_az_ah00 = {0}; - __m256i v_az_ad00 = {0}; - __m256i v_az_eh00 = {0}; - __m256i v_az_adeh = {0}; - __m256i v_rows01 = {0}; - __m256i v_rows23 = {0}; - __m256i v_rows45 = {0}; - __m256i v_rows67 = {0}; - __m256i v_quants01 = {0}; - __m256i v_quants23 = {0}; - __m256i v_quants45 = {0}; - __m256i v_quants67 = {0}; - __m256i v_rows04 = {0}; - __m256i v_rows31 = {0}; - __m256i v_rows26 = {0}; - __m256i v_rows75 = {0}; - __m256i v_fp_rows62 = {0}; - __m256i v_fp_bq2662ad = {0}; - __m256i v_fp_bq2662eh = {0}; - __m256i v_fp_cb26ad = {0}; - __m256i v_fp_cb26eh = {0}; - __m256i v_fp_rows40pos = {0}; - __m256i v_fp_rows04neg = {0}; - __m256i v_fp_rows0pm4 = {0}; - __m256i v_fp_ccpmad = {0}; - __m256i v_fp_ccpmeh = {0}; - __m256i v_fp_cd01ad = {0}; - __m256i v_fp_cd01eh = {0}; - __m256i v_fp_cd32ad = {0}; - __m256i v_fp_cd32eh = {0}; - __m256i v_fp_sums7351 = {0}; - __m256i v_fp_sums5173 = {0}; - __m256i v_fp_ci73515173ad = {0}; - __m256i v_fp_ci73515173eh = {0}; - __m256i v_fp_cl7351ad = {0}; - __m256i v_fp_cl7351eh = {0}; - __m256i v_fp_rows13 = {0}; - __m256i v_fp_bq7153ad = {0}; - __m256i v_fp_bq7153eh = {0}; - __m256i v_fp_ck75ad = {0}; - __m256i v_fp_ck75eh = {0}; - __m256i v_fp_cl5173ad = {0}; - __m256i v_fp_cl5173eh = {0}; - __m256i v_fp_ck13ad = {0}; - __m256i v_fp_ck13eh = {0}; - __m256i v_intermediate01ad = {0}; - __m256i v_intermediate01eh = {0}; - __m256i v_intermediate01 = {0}; - __m256i v_intermediate32ad = {0}; - __m256i v_intermediate32eh = {0}; - __m256i v_intermediate32 = {0}; - __m256i v_intermediate45ad = {0}; - __m256i v_intermediate45eh = {0}; - __m256i v_intermediate45 = {0}; - __m256i v_intermediate76ad = {0}; - __m256i v_intermediate76eh = {0}; - __m256i v_intermediate76 = {0}; - __m256i v_ita0a1e0e1 = {0}; - __m256i v_ita2a3e2e3 = {0}; - __m256i v_ita4a5e4e5 = {0}; - __m256i v_ita6a7e6e7 = {0}; - __m256i v_ita0c0e0g0 = {0}; - __m256i v_ita1c1e1g1 = {0}; - __m256i v_ita4c4e4g4 = {0}; - __m256i v_ita5c5e5g5 = {0}; - __m256i v_ita0b0e0f0 = {0}; - __m256i v_ita4b4e4f4 = {0}; - __m256i v_itc0d0g0h0 = {0}; - __m256i v_itc4d4g4h4 = {0}; - __m256i v_intermediateae = {0}; - __m256i v_intermediatebf = {0}; - __m256i v_intermediatecg = {0}; - __m256i v_intermediatedh = {0}; - __m256i v_intermediatedb = {0}; - __m256i v_intermediatehf = {0}; - __m256i v_sp_cols62 = {0}; - __m256i v_sp_bq2662ad = {0}; - __m256i v_sp_bq2662eh = {0}; - __m256i v_sp_rb26ad = {0}; - __m256i v_sp_rb26eh = {0}; - __m256i v_sp_cols40pos = {0}; - __m256i v_sp_cols04neg = {0}; - __m256i v_sp_cols0pm4 = {0}; - __m256i v_sp_rcpmad = {0}; - __m256i v_sp_rcpmeh = {0}; - __m256i v_sp_rd01ad = {0}; - __m256i v_sp_rd01eh = {0}; - __m256i v_sp_rd32ad = {0}; - __m256i v_sp_rd32eh = {0}; - __m256i v_sp_sums7351 = {0}; - __m256i v_sp_sums5173 = {0}; - __m256i v_sp_ri73515173ad = {0}; - __m256i v_sp_ri73515173eh = {0}; - __m256i v_sp_rl7351ad = {0}; - __m256i v_sp_rl7351eh = {0}; - __m256i v_sp_cols13 = {0}; - __m256i v_sp_bq7153ad = {0}; - __m256i v_sp_bq7153eh = {0}; - __m256i v_sp_rk75ad = {0}; - __m256i v_sp_rk75eh = {0}; - __m256i v_sp_rl5173ad = {0}; - __m256i v_sp_rl5173eh = {0}; - __m256i v_sp_rk13ad = {0}; - __m256i v_sp_rk13eh = {0}; - __m256i v_final01ad = {0}; - __m256i v_final01eh = {0}; - __m256i v_final01 = {0}; - __m256i v_final32ad = {0}; - __m256i v_final32eh = {0}; - __m256i v_final32 = {0}; - __m256i v_final45ad = {0}; - __m256i v_final45eh = {0}; - __m256i v_final45 = {0}; - __m256i v_final76ad = {0}; - __m256i v_final76eh = {0}; - __m256i v_final76 = {0}; - __m256i v_fta0a1e0e1 = {0}; - __m256i v_fta2a3e2e3 = {0}; - __m256i v_fta4a5e4e5 = {0}; - __m256i v_fta6a7e6e7 = {0}; - __m256i v_fta0c0e0g0 = {0}; - __m256i v_fta1c1e1g1 = {0}; - __m256i v_fta4c4e4g4 = {0}; - __m256i v_fta5c5e5g5 = {0}; - __m256i v_fta0b0e0f0 = {0}; - __m256i v_ftc0d0g0h0 = {0}; - __m256i v_fta4b4e4f4 = {0}; - __m256i v_ftc4d4g4h4 = {0}; - __m256i v_finalae = {0}; - __m256i v_finalbf = {0}; - __m256i v_finalcg = {0}; - __m256i v_finaldh = {0}; - __m256i v_final0145 = {0}; - __m256i v_final2367 = {0}; - uint64_t v_final0 = 0; - uint64_t v_final1 = 0; - uint64_t v_final2 = 0; - uint64_t v_final3 = 0; - uint64_t v_final4 = 0; - uint64_t v_final5 = 0; - uint64_t v_final6 = 0; - uint64_t v_final7 = 0; - wuffs_base__slice_u8 v_remaining = {0}; - - if (8u > a_dst_stride) { - return wuffs_base__make_empty_struct(); - } - v_k_0000 = _mm256_set_epi16((int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u)); - v_k_8080 = _mm256_set_epi16((int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u)); - v_k_0000_0002 = _mm256_set_epi16((int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u)); - v_k_0001_FFFF = _mm256_set_epi16((int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u)); - v_k_0400_0000 = _mm256_set_epi16((int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u)); - v_k_29CF_1151_D630_1151 = _mm256_set_epi16((int16_t)(4433u), (int16_t)(54832u), (int16_t)(4433u), (int16_t)(54832u), (int16_t)(4433u), (int16_t)(54832u), (int16_t)(4433u), (int16_t)(54832u), (int16_t)(4433u), (int16_t)(10703u), (int16_t)(4433u), (int16_t)(10703u), (int16_t)(4433u), (int16_t)(10703u), (int16_t)(4433u), (int16_t)(10703u)); - v_k_E333_133E_ADFD_1051 = _mm256_set_epi16((int16_t)(4177u), (int16_t)(44541u), (int16_t)(4177u), (int16_t)(44541u), (int16_t)(4177u), (int16_t)(44541u), (int16_t)(4177u), (int16_t)(44541u), (int16_t)(4926u), (int16_t)(58163u), (int16_t)(4926u), (int16_t)(58163u), (int16_t)(4926u), (int16_t)(58163u), (int16_t)(4926u), (int16_t)(58163u)); - v_k_E6DC_25A1_1925_25A1 = _mm256_set_epi16((int16_t)(9633u), (int16_t)(6437u), (int16_t)(9633u), (int16_t)(6437u), (int16_t)(9633u), (int16_t)(6437u), (int16_t)(9633u), (int16_t)(6437u), (int16_t)(9633u), (int16_t)(59100u), (int16_t)(9633u), (int16_t)(59100u), (int16_t)(9633u), (int16_t)(59100u), (int16_t)(9633u), (int16_t)(59100u)); - v_k_ECC1_E333_EFB0_ADFD = _mm256_set_epi16((int16_t)(44541u), (int16_t)(61360u), (int16_t)(44541u), (int16_t)(61360u), (int16_t)(44541u), (int16_t)(61360u), (int16_t)(44541u), (int16_t)(61360u), (int16_t)(58163u), (int16_t)(60609u), (int16_t)(58163u), (int16_t)(60609u), (int16_t)(58163u), (int16_t)(60609u), (int16_t)(58163u), (int16_t)(60609u)); - do { - if (0u == (wuffs_base__peek_u64le__no_bounds_check((const uint8_t*)(const void*)(self->private_data.f_mcu_blocks[0u] + 8u)) | wuffs_base__peek_u64le__no_bounds_check((const uint8_t*)(const void*)(self->private_data.f_mcu_blocks[0u] + 16u)))) { - v_az_coeffs = _mm_or_si128(_mm_or_si128(_mm_or_si128(_mm_or_si128(_mm_or_si128(_mm_or_si128(_mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 8u)), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 16u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 24u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 32u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 40u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 48u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 56u))); - if (0u == ((uint64_t)(_mm_cvtsi128_si64(_mm_packs_epi16(v_az_coeffs, v_az_coeffs))))) { - v_rows01 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 0u)); - v_quants01 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 0u)); - v_rows01 = _mm256_mullo_epi16(v_rows01, v_quants01); - v_az_ah00 = _mm256_slli_epi16(v_rows01, (int32_t)(2u)); - v_az_ad00 = _mm256_unpacklo_epi16(v_az_ah00, v_az_ah00); - v_az_eh00 = _mm256_unpackhi_epi16(v_az_ah00, v_az_ah00); - v_az_adeh = _mm256_inserti128_si256(v_az_ad00, _mm256_castsi256_si128(v_az_eh00), (int32_t)(1u)); - v_intermediateae = _mm256_shuffle_epi32(v_az_adeh, (int32_t)(0u)); - v_intermediatebf = _mm256_shuffle_epi32(v_az_adeh, (int32_t)(85u)); - v_intermediatecg = _mm256_shuffle_epi32(v_az_adeh, (int32_t)(170u)); - v_intermediatedh = _mm256_shuffle_epi32(v_az_adeh, (int32_t)(255u)); - break; - } - } - v_rows01 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 0u)); - v_rows23 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 16u)); - v_rows45 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 32u)); - v_rows67 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 48u)); - v_quants01 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 0u)); - v_quants23 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 16u)); - v_quants45 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 32u)); - v_quants67 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 48u)); - v_rows01 = _mm256_mullo_epi16(v_rows01, v_quants01); - v_rows23 = _mm256_mullo_epi16(v_rows23, v_quants23); - v_rows45 = _mm256_mullo_epi16(v_rows45, v_quants45); - v_rows67 = _mm256_mullo_epi16(v_rows67, v_quants67); - v_rows04 = _mm256_permute2x128_si256(v_rows01, v_rows45, (int32_t)(32u)); - v_rows31 = _mm256_permute2x128_si256(v_rows23, v_rows01, (int32_t)(49u)); - v_rows26 = _mm256_permute2x128_si256(v_rows23, v_rows67, (int32_t)(32u)); - v_rows75 = _mm256_permute2x128_si256(v_rows67, v_rows45, (int32_t)(49u)); - v_fp_rows62 = _mm256_permute2x128_si256(v_rows26, v_rows26, (int32_t)(1u)); - v_fp_bq2662ad = _mm256_unpacklo_epi16(v_rows26, v_fp_rows62); - v_fp_bq2662eh = _mm256_unpackhi_epi16(v_rows26, v_fp_rows62); - v_fp_cb26ad = _mm256_madd_epi16(v_fp_bq2662ad, v_k_29CF_1151_D630_1151); - v_fp_cb26eh = _mm256_madd_epi16(v_fp_bq2662eh, v_k_29CF_1151_D630_1151); - v_fp_rows40pos = _mm256_permute2x128_si256(v_rows04, v_rows04, (int32_t)(1u)); - v_fp_rows04neg = _mm256_sign_epi16(v_rows04, v_k_0001_FFFF); - v_fp_rows0pm4 = _mm256_add_epi16(v_fp_rows40pos, v_fp_rows04neg); - v_fp_ccpmad = _mm256_srai_epi32(_mm256_unpacklo_epi16(v_k_0000, v_fp_rows0pm4), (int32_t)(3u)); - v_fp_ccpmeh = _mm256_srai_epi32(_mm256_unpackhi_epi16(v_k_0000, v_fp_rows0pm4), (int32_t)(3u)); - v_fp_cd01ad = _mm256_add_epi32(v_fp_ccpmad, v_fp_cb26ad); - v_fp_cd01eh = _mm256_add_epi32(v_fp_ccpmeh, v_fp_cb26eh); - v_fp_cd32ad = _mm256_sub_epi32(v_fp_ccpmad, v_fp_cb26ad); - v_fp_cd32eh = _mm256_sub_epi32(v_fp_ccpmeh, v_fp_cb26eh); - v_fp_sums7351 = _mm256_add_epi16(v_rows75, v_rows31); - v_fp_sums5173 = _mm256_permute2x128_si256(v_fp_sums7351, v_fp_sums7351, (int32_t)(1u)); - v_fp_ci73515173ad = _mm256_unpacklo_epi16(v_fp_sums7351, v_fp_sums5173); - v_fp_ci73515173eh = _mm256_unpackhi_epi16(v_fp_sums7351, v_fp_sums5173); - v_fp_cl7351ad = _mm256_madd_epi16(v_fp_ci73515173ad, v_k_E6DC_25A1_1925_25A1); - v_fp_cl7351eh = _mm256_madd_epi16(v_fp_ci73515173eh, v_k_E6DC_25A1_1925_25A1); - v_fp_rows13 = _mm256_permute2x128_si256(v_rows31, v_rows31, (int32_t)(1u)); - v_fp_bq7153ad = _mm256_unpacklo_epi16(v_rows75, v_fp_rows13); - v_fp_bq7153eh = _mm256_unpackhi_epi16(v_rows75, v_fp_rows13); - v_fp_ck75ad = _mm256_add_epi32(_mm256_madd_epi16(v_fp_bq7153ad, v_k_ECC1_E333_EFB0_ADFD), v_fp_cl7351ad); - v_fp_ck75eh = _mm256_add_epi32(_mm256_madd_epi16(v_fp_bq7153eh, v_k_ECC1_E333_EFB0_ADFD), v_fp_cl7351eh); - v_fp_cl5173ad = _mm256_permute2x128_si256(v_fp_cl7351ad, v_fp_cl7351ad, (int32_t)(1u)); - v_fp_cl5173eh = _mm256_permute2x128_si256(v_fp_cl7351eh, v_fp_cl7351eh, (int32_t)(1u)); - v_fp_ck13ad = _mm256_add_epi32(v_fp_cl5173ad, _mm256_madd_epi16(v_fp_bq7153ad, v_k_E333_133E_ADFD_1051)); - v_fp_ck13eh = _mm256_add_epi32(v_fp_cl5173eh, _mm256_madd_epi16(v_fp_bq7153eh, v_k_E333_133E_ADFD_1051)); - v_intermediate01ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_fp_cd01ad, v_fp_ck13ad), v_k_0400_0000), (int32_t)(11u)); - v_intermediate01eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_fp_cd01eh, v_fp_ck13eh), v_k_0400_0000), (int32_t)(11u)); - v_intermediate01 = _mm256_packs_epi32(v_intermediate01ad, v_intermediate01eh); - v_intermediate32ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_fp_cd32ad, v_fp_ck75ad), v_k_0400_0000), (int32_t)(11u)); - v_intermediate32eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_fp_cd32eh, v_fp_ck75eh), v_k_0400_0000), (int32_t)(11u)); - v_intermediate32 = _mm256_packs_epi32(v_intermediate32ad, v_intermediate32eh); - v_intermediate45ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_fp_cd32ad, v_fp_ck75ad), v_k_0400_0000), (int32_t)(11u)); - v_intermediate45eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_fp_cd32eh, v_fp_ck75eh), v_k_0400_0000), (int32_t)(11u)); - v_intermediate45 = _mm256_packs_epi32(v_intermediate45ad, v_intermediate45eh); - v_intermediate76ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_fp_cd01ad, v_fp_ck13ad), v_k_0400_0000), (int32_t)(11u)); - v_intermediate76eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_fp_cd01eh, v_fp_ck13eh), v_k_0400_0000), (int32_t)(11u)); - v_intermediate76 = _mm256_packs_epi32(v_intermediate76ad, v_intermediate76eh); - v_ita0a1e0e1 = _mm256_permute4x64_epi64(v_intermediate01, (int32_t)(216u)); - v_ita2a3e2e3 = _mm256_permute4x64_epi64(v_intermediate32, (int32_t)(114u)); - v_ita4a5e4e5 = _mm256_permute4x64_epi64(v_intermediate45, (int32_t)(216u)); - v_ita6a7e6e7 = _mm256_permute4x64_epi64(v_intermediate76, (int32_t)(114u)); - v_ita0c0e0g0 = _mm256_unpacklo_epi16(v_ita0a1e0e1, v_ita2a3e2e3); - v_ita1c1e1g1 = _mm256_unpackhi_epi16(v_ita0a1e0e1, v_ita2a3e2e3); - v_ita4c4e4g4 = _mm256_unpacklo_epi16(v_ita4a5e4e5, v_ita6a7e6e7); - v_ita5c5e5g5 = _mm256_unpackhi_epi16(v_ita4a5e4e5, v_ita6a7e6e7); - v_ita0b0e0f0 = _mm256_unpacklo_epi16(v_ita0c0e0g0, v_ita1c1e1g1); - v_itc0d0g0h0 = _mm256_unpackhi_epi16(v_ita0c0e0g0, v_ita1c1e1g1); - v_ita4b4e4f4 = _mm256_unpacklo_epi16(v_ita4c4e4g4, v_ita5c5e5g5); - v_itc4d4g4h4 = _mm256_unpackhi_epi16(v_ita4c4e4g4, v_ita5c5e5g5); - v_intermediateae = _mm256_unpacklo_epi64(v_ita0b0e0f0, v_ita4b4e4f4); - v_intermediatebf = _mm256_unpackhi_epi64(v_ita0b0e0f0, v_ita4b4e4f4); - v_intermediatecg = _mm256_unpacklo_epi64(v_itc0d0g0h0, v_itc4d4g4h4); - v_intermediatedh = _mm256_unpackhi_epi64(v_itc0d0g0h0, v_itc4d4g4h4); - } while (0); - v_intermediatedb = _mm256_permute2x128_si256(v_intermediatedh, v_intermediatebf, (int32_t)(32u)); - v_intermediatehf = _mm256_permute2x128_si256(v_intermediatedh, v_intermediatebf, (int32_t)(49u)); - v_sp_cols62 = _mm256_permute2x128_si256(v_intermediatecg, v_intermediatecg, (int32_t)(1u)); - v_sp_bq2662ad = _mm256_unpacklo_epi16(v_intermediatecg, v_sp_cols62); - v_sp_bq2662eh = _mm256_unpackhi_epi16(v_intermediatecg, v_sp_cols62); - v_sp_rb26ad = _mm256_madd_epi16(v_sp_bq2662ad, v_k_29CF_1151_D630_1151); - v_sp_rb26eh = _mm256_madd_epi16(v_sp_bq2662eh, v_k_29CF_1151_D630_1151); - v_sp_cols40pos = _mm256_permute2x128_si256(v_intermediateae, v_intermediateae, (int32_t)(1u)); - v_sp_cols04neg = _mm256_sign_epi16(v_intermediateae, v_k_0001_FFFF); - v_sp_cols0pm4 = _mm256_add_epi16(v_sp_cols40pos, v_sp_cols04neg); - v_sp_rcpmad = _mm256_srai_epi32(_mm256_unpacklo_epi16(v_k_0000, v_sp_cols0pm4), (int32_t)(3u)); - v_sp_rcpmeh = _mm256_srai_epi32(_mm256_unpackhi_epi16(v_k_0000, v_sp_cols0pm4), (int32_t)(3u)); - v_sp_rd01ad = _mm256_add_epi32(v_sp_rcpmad, v_sp_rb26ad); - v_sp_rd01eh = _mm256_add_epi32(v_sp_rcpmeh, v_sp_rb26eh); - v_sp_rd32ad = _mm256_sub_epi32(v_sp_rcpmad, v_sp_rb26ad); - v_sp_rd32eh = _mm256_sub_epi32(v_sp_rcpmeh, v_sp_rb26eh); - v_sp_sums7351 = _mm256_add_epi16(v_intermediatehf, v_intermediatedb); - v_sp_sums5173 = _mm256_permute2x128_si256(v_sp_sums7351, v_sp_sums7351, (int32_t)(1u)); - v_sp_ri73515173ad = _mm256_unpacklo_epi16(v_sp_sums7351, v_sp_sums5173); - v_sp_ri73515173eh = _mm256_unpackhi_epi16(v_sp_sums7351, v_sp_sums5173); - v_sp_rl7351ad = _mm256_madd_epi16(v_sp_ri73515173ad, v_k_E6DC_25A1_1925_25A1); - v_sp_rl7351eh = _mm256_madd_epi16(v_sp_ri73515173eh, v_k_E6DC_25A1_1925_25A1); - v_sp_cols13 = _mm256_permute2x128_si256(v_intermediatedb, v_intermediatedb, (int32_t)(1u)); - v_sp_bq7153ad = _mm256_unpacklo_epi16(v_intermediatehf, v_sp_cols13); - v_sp_bq7153eh = _mm256_unpackhi_epi16(v_intermediatehf, v_sp_cols13); - v_sp_rk75ad = _mm256_add_epi32(_mm256_madd_epi16(v_sp_bq7153ad, v_k_ECC1_E333_EFB0_ADFD), v_sp_rl7351ad); - v_sp_rk75eh = _mm256_add_epi32(_mm256_madd_epi16(v_sp_bq7153eh, v_k_ECC1_E333_EFB0_ADFD), v_sp_rl7351eh); - v_sp_rl5173ad = _mm256_permute2x128_si256(v_sp_rl7351ad, v_sp_rl7351ad, (int32_t)(1u)); - v_sp_rl5173eh = _mm256_permute2x128_si256(v_sp_rl7351eh, v_sp_rl7351eh, (int32_t)(1u)); - v_sp_rk13ad = _mm256_add_epi32(v_sp_rl5173ad, _mm256_madd_epi16(v_sp_bq7153ad, v_k_E333_133E_ADFD_1051)); - v_sp_rk13eh = _mm256_add_epi32(v_sp_rl5173eh, _mm256_madd_epi16(v_sp_bq7153eh, v_k_E333_133E_ADFD_1051)); - v_final01ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_sp_rd01ad, v_sp_rk13ad), v_k_0000_0002), (int32_t)(18u)); - v_final01eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_sp_rd01eh, v_sp_rk13eh), v_k_0000_0002), (int32_t)(18u)); - v_final01 = _mm256_packs_epi32(v_final01ad, v_final01eh); - v_final32ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_sp_rd32ad, v_sp_rk75ad), v_k_0000_0002), (int32_t)(18u)); - v_final32eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_sp_rd32eh, v_sp_rk75eh), v_k_0000_0002), (int32_t)(18u)); - v_final32 = _mm256_packs_epi32(v_final32ad, v_final32eh); - v_final45ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_sp_rd32ad, v_sp_rk75ad), v_k_0000_0002), (int32_t)(18u)); - v_final45eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_sp_rd32eh, v_sp_rk75eh), v_k_0000_0002), (int32_t)(18u)); - v_final45 = _mm256_packs_epi32(v_final45ad, v_final45eh); - v_final76ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_sp_rd01ad, v_sp_rk13ad), v_k_0000_0002), (int32_t)(18u)); - v_final76eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_sp_rd01eh, v_sp_rk13eh), v_k_0000_0002), (int32_t)(18u)); - v_final76 = _mm256_packs_epi32(v_final76ad, v_final76eh); - v_fta0a1e0e1 = _mm256_permute4x64_epi64(v_final01, (int32_t)(216u)); - v_fta2a3e2e3 = _mm256_permute4x64_epi64(v_final32, (int32_t)(114u)); - v_fta4a5e4e5 = _mm256_permute4x64_epi64(v_final45, (int32_t)(216u)); - v_fta6a7e6e7 = _mm256_permute4x64_epi64(v_final76, (int32_t)(114u)); - v_fta0c0e0g0 = _mm256_unpacklo_epi16(v_fta0a1e0e1, v_fta2a3e2e3); - v_fta1c1e1g1 = _mm256_unpackhi_epi16(v_fta0a1e0e1, v_fta2a3e2e3); - v_fta4c4e4g4 = _mm256_unpacklo_epi16(v_fta4a5e4e5, v_fta6a7e6e7); - v_fta5c5e5g5 = _mm256_unpackhi_epi16(v_fta4a5e4e5, v_fta6a7e6e7); - v_fta0b0e0f0 = _mm256_unpacklo_epi16(v_fta0c0e0g0, v_fta1c1e1g1); - v_ftc0d0g0h0 = _mm256_unpackhi_epi16(v_fta0c0e0g0, v_fta1c1e1g1); - v_fta4b4e4f4 = _mm256_unpacklo_epi16(v_fta4c4e4g4, v_fta5c5e5g5); - v_ftc4d4g4h4 = _mm256_unpackhi_epi16(v_fta4c4e4g4, v_fta5c5e5g5); - v_finalae = _mm256_unpacklo_epi64(v_fta0b0e0f0, v_fta4b4e4f4); - v_finalbf = _mm256_unpackhi_epi64(v_fta0b0e0f0, v_fta4b4e4f4); - v_finalcg = _mm256_unpacklo_epi64(v_ftc0d0g0h0, v_ftc4d4g4h4); - v_finaldh = _mm256_unpackhi_epi64(v_ftc0d0g0h0, v_ftc4d4g4h4); - v_final0145 = _mm256_add_epi8(_mm256_packs_epi16(v_finalae, v_finalbf), v_k_8080); - v_final2367 = _mm256_add_epi8(_mm256_packs_epi16(v_finalcg, v_finaldh), v_k_8080); - v_final0 = ((uint64_t)(_mm256_extract_epi64(v_final0145, (int32_t)(0u)))); - v_final1 = ((uint64_t)(_mm256_extract_epi64(v_final0145, (int32_t)(1u)))); - v_final2 = ((uint64_t)(_mm256_extract_epi64(v_final2367, (int32_t)(0u)))); - v_final3 = ((uint64_t)(_mm256_extract_epi64(v_final2367, (int32_t)(1u)))); - v_final4 = ((uint64_t)(_mm256_extract_epi64(v_final0145, (int32_t)(2u)))); - v_final5 = ((uint64_t)(_mm256_extract_epi64(v_final0145, (int32_t)(3u)))); - v_final6 = ((uint64_t)(_mm256_extract_epi64(v_final2367, (int32_t)(2u)))); - v_final7 = ((uint64_t)(_mm256_extract_epi64(v_final2367, (int32_t)(3u)))); - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final0); - a_dst_buffer = v_remaining; - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final1); - a_dst_buffer = v_remaining; - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final2); - a_dst_buffer = v_remaining; - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final3); - a_dst_buffer = v_remaining; - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final4); - a_dst_buffer = v_remaining; - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final5); - a_dst_buffer = v_remaining; - if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); - wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final6); - a_dst_buffer = v_remaining; - if (8u > ((uint64_t)(a_dst_buffer.len))) { - return wuffs_base__make_empty_struct(); - } - wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final7); - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) -// ‼ WUFFS MULTI-FILE SECTION -x86_avx2 - -// -------- func jpeg.decoder.get_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_jpeg__decoder__get_quirk( - const wuffs_jpeg__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func jpeg.decoder.set_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_jpeg__decoder__set_quirk( - wuffs_jpeg__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - return wuffs_base__make_status(wuffs_base__error__unsupported_option); -} - -// -------- func jpeg.decoder.decode_image_config - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_jpeg__decoder__decode_image_config( - wuffs_jpeg__decoder* self, - wuffs_base__image_config* a_dst, +static wuffs_base__status +wuffs_gif__decoder__skip_blocks( + wuffs_gif__decoder* self, wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint8_t v_block_size = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } - uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; + uint32_t coro_susp_point = self->private_impl.p_skip_blocks; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_jpeg__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_block_size = t_0; } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_jpeg__error__truncated_input); - goto exit; + if (v_block_size == 0u) { + status = wuffs_base__make_status(NULL); + goto ok; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + self->private_data.s_skip_blocks.scratch = ((uint32_t)(v_block_size)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (self->private_data.s_skip_blocks.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_skip_blocks.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_skip_blocks.scratch; } ok: - self->private_impl.p_decode_image_config[0] = 0; + self->private_impl.p_skip_blocks = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_skip_blocks = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func jpeg.decoder.do_decode_image_config +// -------- func gif.decoder.decode_ae WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__do_decode_image_config( - wuffs_jpeg__decoder* self, - wuffs_base__image_config* a_dst, +wuffs_gif__decoder__decode_ae( + wuffs_gif__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint8_t v_marker = 0; - uint32_t v_pixfmt = 0; + uint8_t v_c8 = 0; + uint8_t v_block_size = 0; + bool v_is_animexts = false; + bool v_is_netscape = false; + bool v_is_iccp = false; + bool v_is_xmp = false; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -42362,253 +42476,191 @@ wuffs_jpeg__decoder__do_decode_image_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_ae; if (coro_susp_point) { - v_marker = self->private_data.s_do_decode_image_config[0].v_marker; + v_block_size = self->private_data.s_decode_ae.v_block_size; + v_is_animexts = self->private_data.s_decode_ae.v_is_animexts; + v_is_netscape = self->private_data.s_decode_ae.v_is_netscape; + v_is_iccp = self->private_data.s_decode_ae.v_is_iccp; + v_is_xmp = self->private_data.s_decode_ae.v_is_xmp; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + do { + if (self->private_impl.f_metadata_fourcc != 0u) { + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c != 255u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_block_size = t_0; } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - if (v_c != 216u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_header); - goto exit; - } - while (true) { - while (true) { + if (v_block_size == 0u) { + status = wuffs_base__make_status(NULL); + goto ok; + } + if (v_block_size != 11u) { + self->private_data.s_decode_ae.scratch = ((uint32_t)(v_block_size)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (self->private_data.s_decode_ae.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_decode_ae.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_decode_ae.scratch; + break; + } + v_is_animexts = true; + v_is_netscape = true; + v_is_iccp = true; + v_is_xmp = true; + v_block_size = 0u; + while (v_block_size < 11u) { { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + v_is_animexts = (v_is_animexts && (v_c8 == WUFFS_GIF__ANIMEXTS1DOT0[v_block_size])); + v_is_netscape = (v_is_netscape && (v_c8 == WUFFS_GIF__NETSCAPE2DOT0[v_block_size])); + v_is_iccp = (v_is_iccp && (v_c8 == WUFFS_GIF__ICCRGBG1012[v_block_size])); + v_is_xmp = (v_is_xmp && (v_c8 == WUFFS_GIF__XMPDATAXMP[v_block_size])); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_block_size += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + if (v_is_animexts || v_is_netscape) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } uint8_t t_2 = *iop_a_src++; - v_c = t_2; + v_block_size = t_2; } - if (v_c == 255u) { + if (v_block_size != 3u) { + self->private_data.s_decode_ae.scratch = ((uint32_t)(v_block_size)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (self->private_data.s_decode_ae.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_decode_ae.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_decode_ae.scratch; break; } - } - while (true) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } uint8_t t_3 = *iop_a_src++; - v_c = t_3; + v_c8 = t_3; } - if (v_c != 255u) { - v_marker = v_c; + if (v_c8 != 1u) { + self->private_data.s_decode_ae.scratch = 2u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (self->private_data.s_decode_ae.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_decode_ae.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_decode_ae.scratch; break; } - } - if (v_marker == 0u) { - continue; - } else if ((208u <= v_marker) && (v_marker <= 217u)) { - if (v_marker <= 215u) { - continue; - } - } else { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); uint32_t t_4; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_4 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + t_4 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); iop_a_src += 2; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + self->private_data.s_decode_ae.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_decode_ae.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; if (num_bits_4 == 8) { - t_4 = ((uint32_t)(*scratch >> 48)); + t_4 = ((uint32_t)(*scratch)); break; } num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)); + *scratch |= ((uint64_t)(num_bits_4)) << 56; } } - self->private_impl.f_payload_length = t_4; - } - if (self->private_impl.f_payload_length < 2u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); - goto exit; - } - self->private_impl.f_payload_length -= 2u; - } - if (v_marker < 192u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); - goto exit; - } else if (v_marker < 208u) { - if (v_marker <= 194u) { - if (self->private_impl.f_sof_marker != 0u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); - goto exit; - } - self->private_impl.f_sof_marker = v_marker; - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - status = wuffs_jpeg__decoder__decode_sof(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - break; - } else if (v_marker == 195u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_lossless_coding); - goto exit; - } else if (v_marker == 196u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } else if ((197u <= v_marker) && (v_marker <= 199u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_hierarchical_coding); - goto exit; - } else if (v_marker == 200u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_arithmetic_coding); - goto exit; - } - } else if (v_marker < 224u) { - if (v_marker < 218u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); - goto exit; - } else if (v_marker == 218u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } else if (v_marker == 219u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - status = wuffs_jpeg__decoder__decode_dqt(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - continue; - } else if (v_marker == 221u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_jpeg__decoder__decode_dri(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - continue; - } else { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); - goto exit; - } - } else if (v_marker < 240u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - status = wuffs_jpeg__decoder__decode_appn(self, a_src, v_marker); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; + self->private_impl.f_num_animation_loops_value = t_4; } - continue; - } else { - if (v_marker == 254u) { - } else { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); - goto exit; + self->private_impl.f_seen_num_animation_loops_value = true; + if ((0u < self->private_impl.f_num_animation_loops_value) && (self->private_impl.f_num_animation_loops_value <= 65535u)) { + self->private_impl.f_num_animation_loops_value += 1u; } + } else if (self->private_impl.f_call_sequence >= 32u) { + } else if (v_is_iccp && self->private_impl.f_report_metadata_iccp) { + self->private_impl.f_metadata_fourcc = 1229144912u; + self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + self->private_impl.f_call_sequence = 16u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; + } else if (v_is_xmp && self->private_impl.f_report_metadata_xmp) { + self->private_impl.f_metadata_fourcc = 1481461792u; + self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + self->private_impl.f_call_sequence = 16u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; } - self->private_data.s_do_decode_image_config[0].scratch = self->private_impl.f_payload_length; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - if (self->private_data.s_do_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_image_config[0].scratch; - self->private_impl.f_payload_length = 0u; + } while (0); + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - self->private_impl.choosy_decode_idct = ( -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) - wuffs_base__cpu_arch__have_x86_avx2() ? &wuffs_jpeg__decoder__decode_idct_x86_avx2 : -#endif - self->private_impl.choosy_decode_idct); - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - if (a_dst != NULL) { - v_pixfmt = 536870920u; - if (self->private_impl.f_num_components > 1u) { - v_pixfmt = 2415954056u; - } - wuffs_base__image_config__set( - a_dst, - v_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - true); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + status = wuffs_gif__decoder__skip_blocks(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; } - self->private_impl.f_call_sequence = 32u; - goto ok; ok: - self->private_impl.p_do_decode_image_config[0] = 0; + self->private_impl.p_decode_ae = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_image_config[0].v_marker = v_marker; + self->private_impl.p_decode_ae = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_ae.v_block_size = v_block_size; + self->private_data.s_decode_ae.v_is_animexts = v_is_animexts; + self->private_data.s_decode_ae.v_is_netscape = v_is_netscape; + self->private_data.s_decode_ae.v_is_iccp = v_is_iccp; + self->private_data.s_decode_ae.v_is_xmp = v_is_xmp; goto exit; exit: @@ -42619,18 +42671,18 @@ wuffs_jpeg__decoder__do_decode_image_config( return status; } -// -------- func jpeg.decoder.decode_dqt +// -------- func gif.decoder.decode_gc WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__decode_dqt( - wuffs_jpeg__decoder* self, +wuffs_gif__decoder__decode_gc( + wuffs_gif__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint8_t v_q = 0; - uint32_t v_i = 0; + uint8_t v_c8 = 0; + uint8_t v_flags = 0; + uint16_t v_gc_duration_centiseconds = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -42643,73 +42695,103 @@ wuffs_jpeg__decoder__decode_dqt( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_dqt[0]; - if (coro_susp_point) { - v_q = self->private_data.s_decode_dqt[0].v_q; - v_i = self->private_data.s_decode_dqt[0].v_i; - } + uint32_t coro_susp_point = self->private_impl.p_decode_gc; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - while (self->private_impl.f_payload_length > 0u) { - self->private_impl.f_payload_length -= 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if ((v_c & 15u) > 3u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dqt_marker); - goto exit; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_q = (v_c & 15u); - if ((v_c >> 4u) == 1u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision); - goto exit; - } else if (((v_c >> 4u) > 1u) || (self->private_impl.f_payload_length < 64u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dqt_marker); - goto exit; + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 != 4u) { + status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - self->private_impl.f_payload_length -= 64u; - v_i = 0u; - while (v_i < 64u) { - v_i += 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint8_t t_1 = *iop_a_src++; + v_flags = t_1; + } + self->private_impl.f_gc_has_transparent_index = (((uint8_t)(v_flags & 1u)) != 0u); + v_flags = ((uint8_t)(((uint8_t)(v_flags >> 2u)) & 7u)); + if (v_flags == 2u) { + self->private_impl.f_gc_disposal = 1u; + } else if ((v_flags == 3u) || (v_flags == 4u)) { + self->private_impl.f_gc_disposal = 2u; + } else { + self->private_impl.f_gc_disposal = 0u; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint16_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_2 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_decode_gc.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint16_t t_1 = *iop_a_src++; - self->private_impl.f_quant_tables[v_q][WUFFS_JPEG__UNZIG[v_i]] = t_1; + uint64_t* scratch = &self->private_data.s_decode_gc.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 8) { + t_2 = ((uint16_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; } } - self->private_impl.f_seen_dqt[v_q] = true; - if (self->private_impl.f_sof_marker == 0u) { - v_i = 0u; - while (v_i < 64u) { - self->private_impl.f_saved_quant_tables[v_q][v_i] = self->private_impl.f_quant_tables[v_q][v_i]; - v_i += 1u; - } - self->private_impl.f_saved_seen_dqt[v_q] = true; + v_gc_duration_centiseconds = t_2; + } + self->private_impl.f_gc_duration = (((uint64_t)(v_gc_duration_centiseconds)) * 7056000u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + self->private_impl.f_gc_transparent_index = t_3; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); + goto exit; } goto ok; ok: - self->private_impl.p_decode_dqt[0] = 0; + self->private_impl.p_decode_gc = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_dqt[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_dqt[0].v_q = v_q; - self->private_data.s_decode_dqt[0].v_i = v_i; + self->private_impl.p_decode_gc = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -42720,12 +42802,12 @@ wuffs_jpeg__decoder__decode_dqt( return status; } -// -------- func jpeg.decoder.decode_dri +// -------- func gif.decoder.decode_id_part0 WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__decode_dri( - wuffs_jpeg__decoder* self, +wuffs_gif__decoder__decode_id_part0( + wuffs_gif__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); @@ -42740,57 +42822,144 @@ wuffs_jpeg__decoder__decode_dri( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_dri[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_id_part0; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_payload_length != 2u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dri_marker); - goto exit; - } - self->private_impl.f_payload_length = 0u; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint16_t t_0; + uint32_t t_0; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_0 = wuffs_base__peek_u16be__no_bounds_check(iop_a_src); + t_0 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); iop_a_src += 2; } else { - self->private_data.s_decode_dri[0].scratch = 0; + self->private_data.s_decode_id_part0.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_dri[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_decode_id_part0.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; if (num_bits_0 == 8) { - t_0 = ((uint16_t)(*scratch >> 48)); + t_0 = ((uint32_t)(*scratch)); break; } num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); + *scratch |= ((uint64_t)(num_bits_0)) << 56; } } - self->private_impl.f_restart_interval = t_0; + self->private_impl.f_frame_rect_x0 = t_0; } - if (self->private_impl.f_sof_marker == 0u) { - self->private_impl.f_saved_restart_interval = self->private_impl.f_restart_interval; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_1 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_id_part0.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_id_part0.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 8) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + self->private_impl.f_frame_rect_y0 = t_1; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_2 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_id_part0.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_id_part0.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 8) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + self->private_impl.f_frame_rect_x1 = t_2; + } + self->private_impl.f_frame_rect_x1 += self->private_impl.f_frame_rect_x0; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_3 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_id_part0.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_id_part0.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 8) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; + } + } + self->private_impl.f_frame_rect_y1 = t_3; + } + self->private_impl.f_frame_rect_y1 += self->private_impl.f_frame_rect_y0; + self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; + self->private_impl.f_dst_y = self->private_impl.f_frame_rect_y0; + if ((self->private_impl.f_num_decoded_frame_configs_value == 0u) && ! self->private_impl.f_quirks[4u]) { + self->private_impl.f_width = wuffs_base__u32__max(self->private_impl.f_width, self->private_impl.f_frame_rect_x1); + self->private_impl.f_height = wuffs_base__u32__max(self->private_impl.f_height, self->private_impl.f_frame_rect_y1); } goto ok; ok: - self->private_impl.p_decode_dri[0] = 0; + self->private_impl.p_decode_id_part0 = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_dri[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_id_part0 = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -42801,18 +42970,24 @@ wuffs_jpeg__decoder__decode_dri( return status; } -// -------- func jpeg.decoder.decode_appn +// -------- func gif.decoder.decode_id_part1 WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__decode_appn( - wuffs_jpeg__decoder* self, +wuffs_gif__decoder__decode_id_part1( + wuffs_gif__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, - uint8_t a_marker) { + wuffs_base__pixel_blend a_blend) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c8 = 0; - uint32_t v_c32 = 0; + uint8_t v_flags = 0; + uint8_t v_which_palette = 0; + uint32_t v_num_palette_entries = 0; + uint32_t v_i = 0; + uint32_t v_argb = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint8_t v_lw = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -42825,184 +43000,136 @@ wuffs_jpeg__decoder__decode_appn( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_appn[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_id_part1; + if (coro_susp_point) { + v_which_palette = self->private_data.s_decode_id_part1.v_which_palette; + v_num_palette_entries = self->private_data.s_decode_id_part1.v_num_palette_entries; + v_i = self->private_data.s_decode_id_part1.v_i; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - do { - if (a_marker == 224u) { - if (self->private_impl.f_payload_length >= 5u) { - self->private_impl.f_payload_length -= 5u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_appn[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_appn[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; - } - } - v_c32 = t_0; - } - if (v_c32 != 1179207242u) { - self->private_impl.f_payload_length = (65535u & (self->private_impl.f_payload_length + 1u)); - break; - } - { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_flags = t_0; + } + if (((uint8_t)(v_flags & 64u)) != 0u) { + self->private_impl.f_interlace = 4u; + } else { + self->private_impl.f_interlace = 0u; + } + v_which_palette = 1u; + if (((uint8_t)(v_flags & 128u)) != 0u) { + v_num_palette_entries = (((uint32_t)(1u)) << ((uint8_t)(1u + ((uint8_t)(v_flags & 7u))))); + v_i = 0u; + while (v_i < v_num_palette_entries) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { + t_1 = ((uint32_t)(wuffs_base__peek_u24be__no_bounds_check(iop_a_src))); + iop_a_src += 3; + } else { + self->private_data.s_decode_id_part1.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_c8 = t_1; - } - self->private_impl.f_is_jfif = (v_c8 == 0u); - } - } else if (a_marker == 238u) { - if (self->private_impl.f_payload_length >= 12u) { - self->private_impl.f_payload_length -= 12u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_appn[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_appn[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; - if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; - } - } - v_c32 = t_2; - } - if (v_c32 != 1651467329u) { - self->private_impl.f_payload_length = (65535u & (self->private_impl.f_payload_length + 8u)); - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_appn[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_appn[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)) << 56; + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - } - v_c32 = t_3; - } - if ((255u & v_c32) != 101u) { - self->private_impl.f_payload_length = (65535u & (self->private_impl.f_payload_length + 4u)); - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_4 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_appn[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_appn[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; - if (num_bits_4 == 24) { - t_4 = ((uint32_t)(*scratch)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)) << 56; + uint64_t* scratch = &self->private_data.s_decode_id_part1.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 16) { + t_1 = ((uint32_t)(*scratch >> 40)); + break; } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); } - v_c32 = t_4; - } - if ((v_c32 >> 24u) == 0u) { - self->private_impl.f_is_adobe = 1u; - } else { - self->private_impl.f_is_adobe = 2u; } + v_argb = t_1; } + v_argb |= 4278190080u; + self->private_data.f_palettes[1u][((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); + self->private_data.f_palettes[1u][((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); + self->private_data.f_palettes[1u][((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); + self->private_data.f_palettes[1u][((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); + v_i += 1u; } - } while (0); - self->private_data.s_decode_appn[0].scratch = self->private_impl.f_payload_length; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (self->private_data.s_decode_appn[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_decode_appn[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + while (v_i < 256u) { + self->private_data.f_palettes[1u][((4u * v_i) + 0u)] = 0u; + self->private_data.f_palettes[1u][((4u * v_i) + 1u)] = 0u; + self->private_data.f_palettes[1u][((4u * v_i) + 2u)] = 0u; + self->private_data.f_palettes[1u][((4u * v_i) + 3u)] = 255u; + v_i += 1u; + } + } else if (self->private_impl.f_quirks[6u] && ! self->private_impl.f_has_global_palette) { + status = wuffs_base__make_status(wuffs_gif__error__bad_palette); + goto exit; + } else if (self->private_impl.f_gc_has_transparent_index) { + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_palettes[1u], 1024), wuffs_base__make_slice_u8(self->private_data.f_palettes[0u], 1024)); + } else { + v_which_palette = 0u; } - iop_a_src += self->private_data.s_decode_appn[0].scratch; - self->private_impl.f_payload_length = 0u; + if (self->private_impl.f_gc_has_transparent_index) { + self->private_data.f_palettes[1u][((4u * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 0u)] = 0u; + self->private_data.f_palettes[1u][((4u * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 1u)] = 0u; + self->private_data.f_palettes[1u][((4u * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 2u)] = 0u; + self->private_data.f_palettes[1u][((4u * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 3u)] = 0u; + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), + wuffs_base__utility__make_pixel_format(2198077448u), + wuffs_base__make_slice_u8(self->private_data.f_palettes[v_which_palette], 1024), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + if (self->private_impl.f_ignored_but_affects_benchmarks) { + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_lw = t_2; + } + if (v_lw > 8u) { + status = wuffs_base__make_status(wuffs_gif__error__bad_literal_width); + goto exit; + } + self->private_impl.f_lzw_pending_literal_width_plus_one = ((uint32_t)(((uint8_t)(1u + v_lw)))); + self->private_impl.f_ignored_but_affects_benchmarks = true; - goto ok; ok: - self->private_impl.p_decode_appn[0] = 0; + self->private_impl.p_decode_id_part1 = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_appn[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_id_part1 = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_id_part1.v_which_palette = v_which_palette; + self->private_data.s_decode_id_part1.v_num_palette_entries = v_num_palette_entries; + self->private_data.s_decode_id_part1.v_i = v_i; goto exit; exit: @@ -43013,30 +43140,29 @@ wuffs_jpeg__decoder__decode_appn( return status; } -// -------- func jpeg.decoder.decode_sof +// -------- func gif.decoder.decode_id_part2 WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__decode_sof( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src) { +wuffs_gif__decoder__decode_id_part2( + wuffs_gif__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint8_t v_comp_h = 0; - uint8_t v_comp_v = 0; - uint32_t v_i = 0; - uint32_t v_j = 0; - bool v_has_h24 = false; - bool v_has_h3 = false; - bool v_has_v24 = false; - bool v_has_v3 = false; - uint32_t v_upper_bound = 0; - uint64_t v_wh0 = 0; - uint64_t v_wh1 = 0; - uint64_t v_wh2 = 0; - uint64_t v_wh3 = 0; - uint64_t v_progressive = 0; + uint64_t v_block_size = 0; + bool v_need_block_size = false; + uint32_t v_n_copied = 0; + uint64_t v_n_compressed = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint64_t v_mark = 0; + wuffs_base__status v_copy_status = wuffs_base__make_status(NULL); const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -43049,269 +43175,185 @@ wuffs_jpeg__decoder__decode_sof( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_sof[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_id_part2; if (coro_susp_point) { - v_i = self->private_data.s_decode_sof[0].v_i; + v_block_size = self->private_data.s_decode_id_part2.v_block_size; + v_need_block_size = self->private_data.s_decode_id_part2.v_need_block_size; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_payload_length < 6u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); - goto exit; - } - self->private_impl.f_payload_length -= 6u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c == 8u) { - } else if (v_c == 12u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision_12_bits); - goto exit; - } else if (v_c == 16u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision_16_bits); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_1 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_sof[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - while (true) { + wuffs_gif__decoder__lzw_init(self); + v_need_block_size = true; + label__outer__continue:; + while (true) { + if (v_need_block_size) { + v_need_block_size = false; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_sof[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 8) { - t_1 = ((uint32_t)(*scratch >> 48)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); + uint64_t t_0 = *iop_a_src++; + v_block_size = t_0; } } - self->private_impl.f_height = t_1; - } - if (self->private_impl.f_height == 0u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_implicit_height); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_2 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_sof[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_sof[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); - if (num_bits_2 == 8) { - t_2 = ((uint32_t)(*scratch >> 48)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)); - } + if (v_block_size == 0u) { + break; } - self->private_impl.f_width = t_2; - } - if (self->private_impl.f_width == 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + while (((uint64_t)(io2_a_src - iop_a_src)) == 0u) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; - } - if ((v_c == 0u) || (v_c > 4u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); - goto exit; - } else if (v_c == 2u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_color_model); - goto exit; - } - self->private_impl.f_num_components = ((uint32_t)(v_c)); - if (self->private_impl.f_payload_length != (3u * self->private_impl.f_num_components)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); - goto exit; - } - self->private_impl.f_payload_length = 0u; - v_i = 0u; - while (v_i < self->private_impl.f_num_components) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - self->private_impl.f_components_c[v_i] = t_4; + if (self->private_impl.f_compressed_ri == self->private_impl.f_compressed_wi) { + self->private_impl.f_compressed_ri = 0u; + self->private_impl.f_compressed_wi = 0u; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + while (self->private_impl.f_compressed_wi <= 3841u) { + v_n_compressed = wuffs_base__u64__min(v_block_size, ((uint64_t)(io2_a_src - iop_a_src))); + if (v_n_compressed <= 0u) { + break; } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; - } - v_comp_h = (v_c >> 4u); - v_comp_v = (v_c & 15u); - if ((v_comp_h == 0u) || - (v_comp_h > 4u) || - (v_comp_v == 0u) || - (v_comp_v > 4u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); - goto exit; - } - self->private_impl.f_components_h[v_i] = v_comp_h; - if (self->private_impl.f_max_incl_components_h < self->private_impl.f_components_h[v_i]) { - self->private_impl.f_max_incl_components_h = self->private_impl.f_components_h[v_i]; - } - self->private_impl.f_components_v[v_i] = v_comp_v; - if (self->private_impl.f_max_incl_components_v < self->private_impl.f_components_v[v_i]) { - self->private_impl.f_max_incl_components_v = self->private_impl.f_components_v[v_i]; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_n_copied = wuffs_private_impl__io_reader__limited_copy_u32_to_slice( + &iop_a_src, io2_a_src,((uint32_t)(v_n_compressed)), wuffs_base__make_slice_u8_ij(self->private_data.f_compressed, self->private_impl.f_compressed_wi, 4096)); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_compressed_wi, ((uint64_t)(v_n_copied))); + wuffs_private_impl__u64__sat_sub_indirect(&v_block_size, ((uint64_t)(v_n_copied))); + if (v_block_size > 0u) { + break; } - uint8_t t_6 = *iop_a_src++; - v_c = t_6; - } - if (v_c >= 4u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); - goto exit; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + v_need_block_size = true; + break; + } + v_block_size = ((uint64_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))); + iop_a_src += 1u; } - self->private_impl.f_components_tq[v_i] = v_c; - v_j = 0u; - while (v_j < v_i) { - if (self->private_impl.f_components_c[v_j] == self->private_impl.f_components_c[v_i]) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + while (true) { + if ((self->private_impl.f_compressed_ri > self->private_impl.f_compressed_wi) || (self->private_impl.f_compressed_wi > 4096u)) { + status = wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_i_o); goto exit; } - v_j += 1u; - } - v_i += 1u; - } - if (self->private_impl.f_num_components == 1u) { - self->private_impl.f_max_incl_components_h = 1u; - self->private_impl.f_max_incl_components_v = 1u; - self->private_impl.f_components_h[0u] = 1u; - self->private_impl.f_components_v[0u] = 1u; - } else { - v_has_h24 = false; - v_has_h3 = false; - v_has_v24 = false; - v_has_v3 = false; - v_i = 0u; - while (v_i < self->private_impl.f_num_components) { - v_has_h24 = (v_has_h24 || (self->private_impl.f_components_h[v_i] == 2u) || (self->private_impl.f_components_h[v_i] == 4u)); - v_has_h3 = (v_has_h3 || (self->private_impl.f_components_h[v_i] == 3u)); - v_has_v24 = (v_has_v24 || (self->private_impl.f_components_v[v_i] == 2u) || (self->private_impl.f_components_v[v_i] == 4u)); - v_has_v3 = (v_has_v3 || (self->private_impl.f_components_v[v_i] == 3u)); - v_i += 1u; - } - if ((v_has_h24 && v_has_h3) || (v_has_v24 && v_has_v3)) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_fractional_sampling); - goto exit; - } - if (self->private_impl.f_num_components == 4u) { - self->private_impl.f_is_rgb_or_cmyk = (self->private_impl.f_is_adobe < 2u); - } else { - if (self->private_impl.f_is_jfif) { - self->private_impl.f_is_rgb_or_cmyk = false; - } else if (self->private_impl.f_is_adobe > 0u) { - self->private_impl.f_is_rgb_or_cmyk = (self->private_impl.f_is_adobe == 1u); - } else { - self->private_impl.f_is_rgb_or_cmyk = ((self->private_impl.f_components_c[0u] == 82u) && (self->private_impl.f_components_c[1u] == 71u) && (self->private_impl.f_components_c[2u] == 66u)); + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_compressed, + self->private_impl.f_compressed_ri, + self->private_impl.f_compressed_wi), + 0u); + v_mark = ((uint64_t)(iop_v_r - io0_v_r)); + u_r.meta.ri = ((size_t)(iop_v_r - u_r.data.ptr)); + wuffs_gif__decoder__lzw_read_from(self, v_r); + iop_v_r = u_r.data.ptr + u_r.meta.ri; + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_compressed_ri, wuffs_private_impl__io__count_since(v_mark, ((uint64_t)(iop_v_r - io0_v_r)))); + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; } - } - } - self->private_impl.f_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, 1u, self->private_impl.f_max_incl_components_h); - self->private_impl.f_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, 1u, self->private_impl.f_max_incl_components_v); - v_upper_bound = 65544u; - self->private_impl.f_components_workbuf_widths[0u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_width_in_mcus * ((uint32_t)(self->private_impl.f_components_h[0u])))); - self->private_impl.f_components_workbuf_widths[1u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_width_in_mcus * ((uint32_t)(self->private_impl.f_components_h[1u])))); - self->private_impl.f_components_workbuf_widths[2u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_width_in_mcus * ((uint32_t)(self->private_impl.f_components_h[2u])))); - self->private_impl.f_components_workbuf_widths[3u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_width_in_mcus * ((uint32_t)(self->private_impl.f_components_h[3u])))); - self->private_impl.f_components_workbuf_heights[0u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_height_in_mcus * ((uint32_t)(self->private_impl.f_components_v[0u])))); - self->private_impl.f_components_workbuf_heights[1u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_height_in_mcus * ((uint32_t)(self->private_impl.f_components_v[1u])))); - self->private_impl.f_components_workbuf_heights[2u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_height_in_mcus * ((uint32_t)(self->private_impl.f_components_v[2u])))); - self->private_impl.f_components_workbuf_heights[3u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_height_in_mcus * ((uint32_t)(self->private_impl.f_components_v[3u])))); - v_wh0 = (((uint64_t)(self->private_impl.f_components_workbuf_widths[0u])) * ((uint64_t)(self->private_impl.f_components_workbuf_heights[0u]))); - v_wh1 = (((uint64_t)(self->private_impl.f_components_workbuf_widths[1u])) * ((uint64_t)(self->private_impl.f_components_workbuf_heights[1u]))); - v_wh2 = (((uint64_t)(self->private_impl.f_components_workbuf_widths[2u])) * ((uint64_t)(self->private_impl.f_components_workbuf_heights[2u]))); - v_wh3 = (((uint64_t)(self->private_impl.f_components_workbuf_widths[3u])) * ((uint64_t)(self->private_impl.f_components_workbuf_heights[3u]))); - v_progressive = 0u; - if (self->private_impl.f_sof_marker >= 194u) { - v_progressive = 2u; - v_i = 0u; - while (v_i < 4u) { - v_j = 0u; - while (v_j < 10u) { - self->private_impl.f_block_smoothing_lowest_scan_al[v_i][v_j] = 16u; - v_j += 1u; + if (self->private_impl.f_lzw_output_ri < self->private_impl.f_lzw_output_wi) { + v_copy_status = wuffs_gif__decoder__copy_to_image_buffer(self, a_dst, wuffs_base__make_slice_u8_ij(self->private_data.f_lzw_output, + self->private_impl.f_lzw_output_ri, + self->private_impl.f_lzw_output_wi)); + if (wuffs_base__status__is_error(&v_copy_status)) { + status = v_copy_status; + goto exit; + } + self->private_impl.f_lzw_output_ri = 0u; + self->private_impl.f_lzw_output_wi = 0u; } - v_i += 1u; + if (self->private_impl.f_lzw_read_from_return_value == 0u) { + self->private_impl.f_ignored_but_affects_benchmarks = false; + if (v_need_block_size || (v_block_size > 0u)) { + self->private_data.s_decode_id_part2.scratch = ((uint32_t)(v_block_size)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (self->private_data.s_decode_id_part2.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_decode_id_part2.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_decode_id_part2.scratch; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_gif__decoder__skip_blocks(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + goto label__outer__break; + } else if (self->private_impl.f_lzw_read_from_return_value == 1u) { + continue; + } else if (self->private_impl.f_lzw_read_from_return_value == 2u) { + goto label__outer__continue; + } else if (self->private_impl.f_quirks[3u] && (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1) && (self->private_impl.f_interlace == 0u)) { + if (v_need_block_size || (v_block_size > 0u)) { + self->private_data.s_decode_id_part2.scratch = ((uint32_t)(v_block_size)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (self->private_data.s_decode_id_part2.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_decode_id_part2.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_decode_id_part2.scratch; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + status = wuffs_gif__decoder__skip_blocks(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + goto label__outer__break; + } else if (self->private_impl.f_lzw_read_from_return_value == 3u) { + status = wuffs_base__make_status(wuffs_gif__error__truncated_input); + goto exit; + } else if (self->private_impl.f_lzw_read_from_return_value == 4u) { + status = wuffs_base__make_status(wuffs_gif__error__bad_lzw_code); + goto exit; + } + status = wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_i_o); + goto exit; } } - self->private_impl.f_components_workbuf_offsets[0u] = 0u; - self->private_impl.f_components_workbuf_offsets[1u] = (self->private_impl.f_components_workbuf_offsets[0u] + v_wh0); - self->private_impl.f_components_workbuf_offsets[2u] = (self->private_impl.f_components_workbuf_offsets[1u] + v_wh1); - self->private_impl.f_components_workbuf_offsets[3u] = (self->private_impl.f_components_workbuf_offsets[2u] + v_wh2); - self->private_impl.f_components_workbuf_offsets[4u] = (self->private_impl.f_components_workbuf_offsets[3u] + v_wh3); - self->private_impl.f_components_workbuf_offsets[5u] = (self->private_impl.f_components_workbuf_offsets[4u] + (v_wh0 * v_progressive)); - self->private_impl.f_components_workbuf_offsets[6u] = (self->private_impl.f_components_workbuf_offsets[5u] + (v_wh1 * v_progressive)); - self->private_impl.f_components_workbuf_offsets[7u] = (self->private_impl.f_components_workbuf_offsets[6u] + (v_wh2 * v_progressive)); - self->private_impl.f_components_workbuf_offsets[8u] = (self->private_impl.f_components_workbuf_offsets[7u] + (v_wh3 * v_progressive)); + label__outer__break:; + self->private_impl.f_compressed_ri = 0u; + self->private_impl.f_compressed_wi = 0u; + if ((self->private_impl.f_dst_y < self->private_impl.f_frame_rect_y1) && (self->private_impl.f_frame_rect_x0 != self->private_impl.f_frame_rect_x1) && (self->private_impl.f_frame_rect_y0 != self->private_impl.f_frame_rect_y1)) { + status = wuffs_base__make_status(wuffs_base__error__not_enough_data); + goto exit; + } - goto ok; ok: - self->private_impl.p_decode_sof[0] = 0; + self->private_impl.p_decode_id_part2 = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_sof[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_sof[0].v_i = v_i; + self->private_impl.p_decode_id_part2 = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_id_part2.v_block_size = v_block_size; + self->private_data.s_decode_id_part2.v_need_block_size = v_need_block_size; goto exit; exit: @@ -43322,106 +43364,182 @@ wuffs_jpeg__decoder__decode_sof( return status; } -// -------- func jpeg.decoder.quantize_dimension +// -------- func gif.decoder.copy_to_image_buffer WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__quantize_dimension( - const wuffs_jpeg__decoder* self, - uint32_t a_width, - uint8_t a_h, - uint8_t a_max_incl_h) { - uint32_t v_ratio = 0; +static wuffs_base__status +wuffs_gif__decoder__copy_to_image_buffer( + wuffs_gif__decoder* self, + wuffs_base__pixel_buffer* a_pb, + wuffs_base__slice_u8 a_src) { + wuffs_base__slice_u8 v_dst = {0}; + wuffs_base__slice_u8 v_src = {0}; + uint64_t v_width_in_bytes = 0; + uint64_t v_n = 0; + uint64_t v_src_ri = 0; + wuffs_base__pixel_format v_pixfmt = {0}; + uint32_t v_bytes_per_pixel = 0; + uint32_t v_bits_per_pixel = 0; + wuffs_base__table_u8 v_tab = {0}; + uint64_t v_i = 0; + uint64_t v_j = 0; + uint32_t v_replicate_y0 = 0; + uint32_t v_replicate_y1 = 0; + wuffs_base__slice_u8 v_replicate_dst = {0}; + wuffs_base__slice_u8 v_replicate_src = {0}; - v_ratio = 0u; - if (a_h > 0u) { - v_ratio = ((uint32_t)((a_max_incl_h / a_h))); + v_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_pb); + v_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_pixfmt); + if ((v_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } - if (v_ratio == 1u) { - return ((a_width + 7u) / 8u); - } else if (v_ratio == 2u) { - return ((a_width + 15u) / 16u); - } else if (v_ratio == 3u) { - return ((a_width + 23u) / 24u); + v_bytes_per_pixel = (v_bits_per_pixel >> 3u); + v_width_in_bytes = ((uint64_t)((self->private_impl.f_width * v_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_pb, 0u); + while (v_src_ri < ((uint64_t)(a_src.len))) { + v_src = wuffs_base__slice_u8__subslice_i(a_src, v_src_ri); + if (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1) { + if (self->private_impl.f_quirks[3u]) { + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__too_much_data); + } + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, 0u); + } else if (v_width_in_bytes < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_width_in_bytes); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_bytes_per_pixel))); + if (v_i < ((uint64_t)(v_dst.len))) { + v_j = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * ((uint64_t)(v_bytes_per_pixel))); + if ((v_i <= v_j) && (v_j <= ((uint64_t)(v_dst.len)))) { + v_dst = wuffs_base__slice_u8__subslice_ij(v_dst, v_i, v_j); + } else { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_i); + } + v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024), v_src); + wuffs_private_impl__u64__sat_add_indirect(&v_src_ri, v_n); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + self->private_impl.f_dirty_max_excl_y = wuffs_base__u32__max(self->private_impl.f_dirty_max_excl_y, wuffs_base__u32__sat_add(self->private_impl.f_dst_y, 1u)); + } + if (self->private_impl.f_frame_rect_x1 <= self->private_impl.f_dst_x) { + self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; + if (self->private_impl.f_interlace == 0u) { + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_y, 1u); + continue; + } + if ((self->private_impl.f_num_decoded_frames_value == 0u) && ! self->private_impl.f_gc_has_transparent_index && (self->private_impl.f_interlace > 1u)) { + v_replicate_src = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + v_replicate_y0 = wuffs_base__u32__sat_add(self->private_impl.f_dst_y, 1u); + v_replicate_y1 = wuffs_base__u32__sat_add(self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_COUNT[self->private_impl.f_interlace]))); + v_replicate_y1 = wuffs_base__u32__min(v_replicate_y1, self->private_impl.f_frame_rect_y1); + while (v_replicate_y0 < v_replicate_y1) { + v_replicate_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_replicate_y0); + wuffs_private_impl__slice_u8__copy_from_slice(v_replicate_dst, v_replicate_src); + v_replicate_y0 += 1u; + } + self->private_impl.f_dirty_max_excl_y = wuffs_base__u32__max(self->private_impl.f_dirty_max_excl_y, v_replicate_y1); + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_DELTA[self->private_impl.f_interlace]))); + while ((self->private_impl.f_interlace > 0u) && (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1)) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_interlace -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_impl.f_dst_y = wuffs_base__u32__sat_add(self->private_impl.f_frame_rect_y0, WUFFS_GIF__INTERLACE_START[self->private_impl.f_interlace]); + } + continue; + } + if (((uint64_t)(a_src.len)) == v_src_ri) { + break; + } else if (((uint64_t)(a_src.len)) < v_src_ri) { + return wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_i_o); + } + v_n = ((uint64_t)((self->private_impl.f_frame_rect_x1 - self->private_impl.f_dst_x))); + v_n = wuffs_base__u64__min(v_n, (((uint64_t)(a_src.len)) - v_src_ri)); + wuffs_private_impl__u64__sat_add_indirect(&v_src_ri, v_n); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + if (self->private_impl.f_frame_rect_x1 <= self->private_impl.f_dst_x) { + self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_DELTA[self->private_impl.f_interlace]))); + while ((self->private_impl.f_interlace > 0u) && (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1)) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_interlace -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_impl.f_dst_y = wuffs_base__u32__sat_add(self->private_impl.f_frame_rect_y0, WUFFS_GIF__INTERLACE_START[self->private_impl.f_interlace]); + } + continue; + } + if (v_src_ri != ((uint64_t)(a_src.len))) { + return wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_i_o); + } + break; } - return ((a_width + 31u) / 32u); + return wuffs_base__make_status(NULL); } -// -------- func jpeg.decoder.decode_frame_config +// -------- func gif.decoder.lzw_init WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_jpeg__decoder__decode_frame_config( - wuffs_jpeg__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_jpeg__decoder__do_decode_frame_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_jpeg__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } +static wuffs_base__empty_struct +wuffs_gif__decoder__lzw_init( + wuffs_gif__decoder* self) { + uint32_t v_i = 0; - ok: - self->private_impl.p_decode_frame_config[0] = 0; - goto exit; + self->private_impl.f_lzw_literal_width = 8u; + if (self->private_impl.f_lzw_pending_literal_width_plus_one > 0u) { + self->private_impl.f_lzw_literal_width = (self->private_impl.f_lzw_pending_literal_width_plus_one - 1u); } - - goto suspend; - suspend: - self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + self->private_impl.f_lzw_clear_code = (((uint32_t)(1u)) << self->private_impl.f_lzw_literal_width); + self->private_impl.f_lzw_end_code = (self->private_impl.f_lzw_clear_code + 1u); + self->private_impl.f_lzw_save_code = self->private_impl.f_lzw_end_code; + self->private_impl.f_lzw_prev_code = self->private_impl.f_lzw_end_code; + self->private_impl.f_lzw_width = (self->private_impl.f_lzw_literal_width + 1u); + self->private_impl.f_lzw_bits = 0u; + self->private_impl.f_lzw_n_bits = 0u; + self->private_impl.f_lzw_output_ri = 0u; + self->private_impl.f_lzw_output_wi = 0u; + v_i = 0u; + while (v_i < self->private_impl.f_lzw_clear_code) { + self->private_data.f_lzw_lm1s[v_i] = 0u; + self->private_data.f_lzw_suffixes[v_i][0u] = ((uint8_t)(v_i)); + v_i += 1u; } - return status; + return wuffs_base__make_empty_struct(); } -// -------- func jpeg.decoder.do_decode_frame_config +// -------- func gif.decoder.lzw_read_from WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__do_decode_frame_config( - wuffs_jpeg__decoder* self, - wuffs_base__frame_config* a_dst, +static wuffs_base__empty_struct +wuffs_gif__decoder__lzw_read_from( + wuffs_gif__decoder* self, wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); + uint32_t v_clear_code = 0; + uint32_t v_end_code = 0; + uint32_t v_save_code = 0; + uint32_t v_prev_code = 0; + uint32_t v_width = 0; + uint32_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_output_wi = 0; + uint32_t v_code = 0; + uint32_t v_c = 0; + uint32_t v_o = 0; + uint32_t v_steps = 0; + uint8_t v_first_byte = 0; + uint16_t v_lm1_b = 0; + uint16_t v_lm1_a = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -43434,83 +43552,370 @@ wuffs_jpeg__decoder__do_decode_frame_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + v_clear_code = self->private_impl.f_lzw_clear_code; + v_end_code = self->private_impl.f_lzw_end_code; + v_save_code = self->private_impl.f_lzw_save_code; + v_prev_code = self->private_impl.f_lzw_prev_code; + v_width = self->private_impl.f_lzw_width; + v_bits = self->private_impl.f_lzw_bits; + v_n_bits = self->private_impl.f_lzw_n_bits; + v_output_wi = self->private_impl.f_lzw_output_wi; + while (true) { + if (v_n_bits < v_width) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { + v_bits |= ((uint32_t)(wuffs_base__peek_u32le__no_bounds_check(iop_a_src) << v_n_bits)); + iop_a_src += ((31u - v_n_bits) >> 3u); + v_n_bits |= 24u; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + self->private_impl.f_lzw_read_from_return_value = 3u; + } else { + self->private_impl.f_lzw_read_from_return_value = 2u; + } + break; + } else { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + if (v_n_bits >= v_width) { + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + self->private_impl.f_lzw_read_from_return_value = 3u; + } else { + self->private_impl.f_lzw_read_from_return_value = 2u; + } + break; + } else { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + if (v_n_bits < v_width) { + self->private_impl.f_lzw_read_from_return_value = 5u; + break; + } + } } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_jpeg__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + v_code = ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_width)); + v_bits >>= v_width; + v_n_bits -= v_width; + if (v_code < v_clear_code) { + self->private_data.f_lzw_output[v_output_wi] = ((uint8_t)(v_code)); + v_output_wi = ((v_output_wi + 1u) & 8191u); + if (v_save_code <= 4095u) { + v_lm1_a = ((uint16_t)(((uint16_t)(self->private_data.f_lzw_lm1s[v_prev_code] + 1u)) & 4095u)); + self->private_data.f_lzw_lm1s[v_save_code] = v_lm1_a; + if (((uint16_t)(v_lm1_a % 8u)) != 0u) { + self->private_impl.f_lzw_prefixes[v_save_code] = self->private_impl.f_lzw_prefixes[v_prev_code]; + memcpy(self->private_data.f_lzw_suffixes[v_save_code],self->private_data.f_lzw_suffixes[v_prev_code], sizeof(self->private_data.f_lzw_suffixes[v_save_code])); + self->private_data.f_lzw_suffixes[v_save_code][((uint16_t)(v_lm1_a % 8u))] = ((uint8_t)(v_code)); + } else { + self->private_impl.f_lzw_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); + self->private_data.f_lzw_suffixes[v_save_code][0u] = ((uint8_t)(v_code)); + } + v_save_code += 1u; + if (v_width < 12u) { + v_width += (1u & (v_save_code >> v_width)); + } + v_prev_code = v_code; } - if (status.repr) { - goto suspend; + } else if (v_code <= v_end_code) { + if (v_code == v_end_code) { + self->private_impl.f_lzw_read_from_return_value = 0u; + break; } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; + v_save_code = v_end_code; + v_prev_code = v_end_code; + v_width = (self->private_impl.f_lzw_literal_width + 1u); + } else if (v_code <= v_save_code) { + v_c = v_code; + if (v_code == v_save_code) { + v_c = v_prev_code; + } + v_o = ((v_output_wi + (((uint32_t)(self->private_data.f_lzw_lm1s[v_c])) & 4294967288u)) & 8191u); + v_output_wi = ((v_output_wi + 1u + ((uint32_t)(self->private_data.f_lzw_lm1s[v_c]))) & 8191u); + v_steps = (((uint32_t)(self->private_data.f_lzw_lm1s[v_c])) >> 3u); + while (true) { + memcpy((self->private_data.f_lzw_output)+(v_o), (self->private_data.f_lzw_suffixes[v_c]), 8u); + if (v_steps <= 0u) { + break; + } + v_steps -= 1u; + v_o = (((uint32_t)(v_o - 8u)) & 8191u); + v_c = ((uint32_t)(self->private_impl.f_lzw_prefixes[v_c])); + } + v_first_byte = self->private_data.f_lzw_suffixes[v_c][0u]; + if (v_code == v_save_code) { + self->private_data.f_lzw_output[v_output_wi] = v_first_byte; + v_output_wi = ((v_output_wi + 1u) & 8191u); + } + if (v_save_code <= 4095u) { + v_lm1_b = ((uint16_t)(((uint16_t)(self->private_data.f_lzw_lm1s[v_prev_code] + 1u)) & 4095u)); + self->private_data.f_lzw_lm1s[v_save_code] = v_lm1_b; + if (((uint16_t)(v_lm1_b % 8u)) != 0u) { + self->private_impl.f_lzw_prefixes[v_save_code] = self->private_impl.f_lzw_prefixes[v_prev_code]; + memcpy(self->private_data.f_lzw_suffixes[v_save_code],self->private_data.f_lzw_suffixes[v_prev_code], sizeof(self->private_data.f_lzw_suffixes[v_save_code])); + self->private_data.f_lzw_suffixes[v_save_code][((uint16_t)(v_lm1_b % 8u))] = v_first_byte; + } else { + self->private_impl.f_lzw_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); + self->private_data.f_lzw_suffixes[v_save_code][0u] = ((uint8_t)(v_first_byte)); + } + v_save_code += 1u; + if (v_width < 12u) { + v_width += (1u & (v_save_code >> v_width)); + } + v_prev_code = v_code; } - } else if (self->private_impl.f_call_sequence == 64u) { - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; + self->private_impl.f_lzw_read_from_return_value = 4u; + break; } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height), - ((wuffs_base__flicks)(0u)), - 0u, - self->private_impl.f_frame_config_io_position, - 0u, - true, - false, - 4278190080u); + if (v_output_wi > 4095u) { + self->private_impl.f_lzw_read_from_return_value = 1u; + break; } - self->private_impl.f_call_sequence = 64u; - - ok: - self->private_impl.p_do_decode_frame_config[0] = 0; - goto exit; } - - goto suspend; - suspend: - self->private_impl.p_do_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: + if (self->private_impl.f_lzw_read_from_return_value != 2u) { + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + self->private_impl.f_lzw_read_from_return_value = 5u; + break; + } + } + } + self->private_impl.f_lzw_save_code = v_save_code; + self->private_impl.f_lzw_prev_code = v_prev_code; + self->private_impl.f_lzw_width = v_width; + self->private_impl.f_lzw_bits = v_bits; + self->private_impl.f_lzw_n_bits = v_n_bits; + self->private_impl.f_lzw_output_wi = v_output_wi; if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return status; + return wuffs_base__make_empty_struct(); } -// -------- func jpeg.decoder.decode_frame +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GZIP) + +// ---------------- Status Codes Implementations + +const char wuffs_gzip__error__bad_checksum[] = "#gzip: bad checksum"; +const char wuffs_gzip__error__bad_compression_method[] = "#gzip: bad compression method"; +const char wuffs_gzip__error__bad_encoding_flags[] = "#gzip: bad encoding flags"; +const char wuffs_gzip__error__bad_header[] = "#gzip: bad header"; +const char wuffs_gzip__error__truncated_input[] = "#gzip: truncated input"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_jpeg__decoder__decode_frame( - wuffs_jpeg__decoder* self, - wuffs_base__pixel_buffer* a_dst, +static wuffs_base__status +wuffs_gzip__decoder__do_transform_io( + wuffs_gzip__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { + wuffs_base__slice_u8 a_workbuf); + +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_gzip__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_gzip__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_gzip__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_gzip__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_gzip__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_gzip__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_gzip__decoder__initialize( + wuffs_gzip__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + { + wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( + &self->private_data.f_checksum, sizeof(self->private_data.f_checksum), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_deflate__decoder__initialize( + &self->private_data.f_flate, sizeof(self->private_data.f_flate), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_gzip__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_gzip__decoder* +wuffs_gzip__decoder__alloc(void) { + wuffs_gzip__decoder* x = + (wuffs_gzip__decoder*)(calloc(1, sizeof(wuffs_gzip__decoder))); + if (!x) { + return NULL; + } + if (wuffs_gzip__decoder__initialize( + x, sizeof(wuffs_gzip__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_gzip__decoder(void) { + return sizeof(wuffs_gzip__decoder); +} + +// ---------------- Function Implementations + +// -------- func gzip.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_gzip__decoder__get_quirk( + const wuffs_gzip__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + return 1u; + } + return 0u; +} + +// -------- func gzip.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_gzip__decoder__set_quirk( + wuffs_gzip__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func gzip.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_gzip__decoder__dst_history_retain_length( + const wuffs_gzip__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_base__utility__make_optional_u63(true, 0u); +} + +// -------- func gzip.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_gzip__decoder__workbuf_len( + const wuffs_gzip__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(1u, 1u); +} + +// -------- func gzip.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_gzip__decoder__transform_io( + wuffs_gzip__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -43525,65 +43930,41 @@ wuffs_jpeg__decoder__decode_frame( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { + (self->private_impl.active_coroutine != 1)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_ddf_status = wuffs_base__make_status(NULL); - wuffs_base__status v_swizzle_status = wuffs_base__make_status(NULL); - uint32_t v_scan_count = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; + uint32_t coro_susp_point = self->private_impl.p_transform_io; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { - v_scan_count = self->private_impl.f_scan_count; { - wuffs_base__status t_0 = wuffs_jpeg__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_ddf_status = t_0; - } - if ((v_ddf_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - v_ddf_status = wuffs_base__make_status(wuffs_jpeg__error__truncated_input); + wuffs_base__status t_0 = wuffs_gzip__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + v_status = t_0; } - if (wuffs_base__status__is_error(&v_ddf_status) || (v_scan_count < self->private_impl.f_scan_count)) { - if (self->private_impl.f_sof_marker >= 194u) { - wuffs_jpeg__decoder__apply_progressive_idct(self, a_workbuf); - } - if (self->private_impl.f_num_components == 1u) { - v_swizzle_status = wuffs_jpeg__decoder__swizzle_gray(self, a_dst, a_workbuf); - } else { - v_swizzle_status = wuffs_jpeg__decoder__swizzle_colorful(self, a_dst, a_workbuf); - } - if (wuffs_base__status__is_error(&v_ddf_status)) { - status = v_ddf_status; - goto exit; - } else if (wuffs_base__status__is_error(&v_swizzle_status)) { - status = v_swizzle_status; - goto exit; - } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_gzip__error__truncated_input); + goto exit; } - status = v_ddf_status; + status = v_status; WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } ok: - self->private_impl.p_decode_frame[0] = 0; + self->private_impl.p_transform_io = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: @@ -43593,24 +43974,40 @@ wuffs_jpeg__decoder__decode_frame( return status; } -// -------- func jpeg.decoder.do_decode_frame +// -------- func gzip.decoder.do_transform_io WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__do_decode_frame( - wuffs_jpeg__decoder* self, - wuffs_base__pixel_buffer* a_dst, +wuffs_gzip__decoder__do_transform_io( + wuffs_gzip__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { + wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_pixfmt = 0; + uint8_t v_c8 = 0; + uint8_t v_flags = 0; + uint16_t v_xlen = 0; + uint64_t v_mark = 0; + uint32_t v_checksum_have = 0; + uint32_t v_decoded_length_have = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint8_t v_marker = 0; + uint32_t v_checksum_want = 0; + uint32_t v_decoded_length_want = 0; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -43622,236 +44019,269 @@ wuffs_jpeg__decoder__do_decode_frame( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame[0]; + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; if (coro_susp_point) { - v_marker = self->private_data.s_do_decode_frame[0].v_marker; + v_flags = self->private_data.s_do_transform_io.v_flags; + v_checksum_have = self->private_data.s_do_transform_io.v_checksum_have; + v_decoded_length_have = self->private_data.s_do_transform_io.v_decoded_length_have; + v_checksum_want = self->private_data.s_do_transform_io.v_checksum_want; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } + { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_jpeg__decoder__do_decode_frame_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - if (status.repr) { + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 != 31u) { + status = wuffs_base__make_status(wuffs_gzip__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; } - v_pixfmt = 536870920u; - if (self->private_impl.f_num_components > 1u) { - v_pixfmt = 2415954056u; + if (v_c8 != 139u) { + status = wuffs_base__make_status(wuffs_gzip__error__bad_header); + goto exit; } - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), - wuffs_base__utility__make_pixel_format(v_pixfmt), - wuffs_base__utility__empty_slice_u8(), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - goto ok; + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; } - if (self->private_impl.f_components_workbuf_offsets[8u] > ((uint64_t)(a_workbuf.len))) { - status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + if (v_c8 != 8u) { + status = wuffs_base__make_status(wuffs_gzip__error__bad_compression_method); goto exit; - } else if (self->private_impl.f_components_workbuf_offsets[4u] < self->private_impl.f_components_workbuf_offsets[8u]) { - wuffs_base__bulk_memset(a_workbuf.ptr + self->private_impl.f_components_workbuf_offsets[4u], (self->private_impl.f_components_workbuf_offsets[8u] - self->private_impl.f_components_workbuf_offsets[4u]), 0u); } - if (self->private_impl.f_components_workbuf_offsets[4u] <= ((uint64_t)(a_workbuf.len))) { - wuffs_base__bulk_memset(a_workbuf.ptr, self->private_impl.f_components_workbuf_offsets[4u], 128u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_flags = t_3; } - while (true) { + self->private_data.s_do_transform_io.scratch = 6u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (self->private_data.s_do_transform_io.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_transform_io.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_transform_io.scratch; + if (((uint8_t)(v_flags & 4u)) != 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint16_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_4 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 8) { + t_4 = ((uint16_t)(*scratch)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)) << 56; + } + } + v_xlen = t_4; + } + self->private_data.s_do_transform_io.scratch = ((uint32_t)(v_xlen)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (self->private_data.s_do_transform_io.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_transform_io.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_transform_io.scratch; + } + if (((uint8_t)(v_flags & 8u)) != 0u) { while (true) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; } - if (v_c == 255u) { + if (v_c8 == 0u) { break; } } + } + if (((uint8_t)(v_flags & 16u)) != 0u) { while (true) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; } - if (v_c != 255u) { - v_marker = v_c; + if (v_c8 == 0u) { break; } } - if (v_marker == 0u) { - continue; - } else if ((208u <= v_marker) && (v_marker <= 217u)) { - if (v_marker <= 215u) { - continue; + } + if (((uint8_t)(v_flags & 2u)) != 0u) { + self->private_data.s_do_transform_io.scratch = 2u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (self->private_data.s_do_transform_io.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_transform_io.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_transform_io.scratch; + } + if (((uint8_t)(v_flags & 224u)) != 0u) { + status = wuffs_base__make_status(wuffs_gzip__error__bad_encoding_flags); + goto exit; + } + while (true) { + v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - } else { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_2 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_frame[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); - if (num_bits_2 == 8) { - t_2 = ((uint32_t)(*scratch >> 48)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)); - } - } - self->private_impl.f_payload_length = t_2; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (self->private_impl.f_payload_length < 2u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); - goto exit; + wuffs_base__status t_7 = wuffs_deflate__decoder__transform_io(&self->private_data.f_flate, a_dst, a_src, a_workbuf); + v_status = t_7; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - self->private_impl.f_payload_length -= 2u; } - if (v_marker < 192u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); - goto exit; - } else if (v_marker < 208u) { - if (v_marker == 196u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - status = wuffs_jpeg__decoder__decode_dht(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { + if ( ! self->private_impl.f_ignore_checksum) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_checksum, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + v_decoded_length_have += ((uint32_t)(wuffs_private_impl__io__count_since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst))))); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(12); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + uint32_t t_8; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_8 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - continue; - } else if (v_marker == 200u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); - goto exit; - } - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); - goto exit; - } else if (v_marker < 224u) { - if (v_marker < 217u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); - goto exit; - } else if (v_marker == 217u) { - break; - } else if (v_marker == 218u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - status = wuffs_jpeg__decoder__decode_sos(self, a_src, a_workbuf); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_8 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_8; + if (num_bits_8 == 24) { + t_8 = ((uint32_t)(*scratch)); + break; } - if (status.repr) { + num_bits_8 += 8u; + *scratch |= ((uint64_t)(num_bits_8)) << 56; + } + } + v_checksum_want = t_8; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + uint32_t t_9; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_9 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - continue; - } else if (v_marker == 219u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - status = wuffs_jpeg__decoder__decode_dqt(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - continue; - } else if (v_marker == 221u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_jpeg__decoder__decode_dri(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_9 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_9; + if (num_bits_9 == 24) { + t_9 = ((uint32_t)(*scratch)); + break; } - continue; - } else { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); - goto exit; - } - } else if (v_marker < 240u) { - } else { - if (v_marker == 254u) { - } else { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); - goto exit; + num_bits_9 += 8u; + *scratch |= ((uint64_t)(num_bits_9)) << 56; } } - self->private_data.s_do_decode_frame[0].scratch = self->private_impl.f_payload_length; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (self->private_data.s_do_decode_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame[0].scratch; - self->private_impl.f_payload_length = 0u; + v_decoded_length_want = t_9; + } + if ( ! self->private_impl.f_ignore_checksum && ((v_checksum_have != v_checksum_want) || (v_decoded_length_have != v_decoded_length_want))) { + status = wuffs_base__make_status(wuffs_gzip__error__bad_checksum); + goto exit; } - self->private_impl.f_call_sequence = 96u; ok: - self->private_impl.p_do_decode_frame[0] = 0; + self->private_impl.p_do_transform_io = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_frame[0].v_marker = v_marker; + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_transform_io.v_flags = v_flags; + self->private_data.s_do_transform_io.v_checksum_have = v_checksum_have; + self->private_data.s_do_transform_io.v_decoded_length_have = v_decoded_length_have; + self->private_data.s_do_transform_io.v_checksum_want = v_checksum_want; goto exit; exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -43859,891 +44289,398 @@ wuffs_jpeg__decoder__do_decode_frame( return status; } -// -------- func jpeg.decoder.decode_dht +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GZIP) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__decode_dht( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JPEG) - uint8_t v_c = 0; - uint8_t v_tc = 0; - uint8_t v_th = 0; - uint8_t v_tc4_th = 0; - uint32_t v_working_total_count = 0; - uint32_t v_total_count = 0; - uint32_t v_i = 0; - bool v_failed = false; +// ---------------- Status Codes Implementations - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +const char wuffs_jpeg__error__bad_dht_marker[] = "#jpeg: bad DHT marker"; +const char wuffs_jpeg__error__bad_dqt_marker[] = "#jpeg: bad DQT marker"; +const char wuffs_jpeg__error__bad_dri_marker[] = "#jpeg: bad DRI marker"; +const char wuffs_jpeg__error__bad_sof_marker[] = "#jpeg: bad SOF marker"; +const char wuffs_jpeg__error__bad_sos_marker[] = "#jpeg: bad SOS marker"; +const char wuffs_jpeg__error__bad_header[] = "#jpeg: bad header"; +const char wuffs_jpeg__error__bad_marker[] = "#jpeg: bad marker"; +const char wuffs_jpeg__error__bad_scan_count[] = "#jpeg: bad scan count"; +const char wuffs_jpeg__error__missing_huffman_table[] = "#jpeg: missing Huffman table"; +const char wuffs_jpeg__error__missing_quantization_table[] = "#jpeg: missing Quantization table"; +const char wuffs_jpeg__error__rejected_progressive_jpeg[] = "#jpeg: rejected progressive JPEG"; +const char wuffs_jpeg__error__truncated_input[] = "#jpeg: truncated input"; +const char wuffs_jpeg__error__unsupported_arithmetic_coding[] = "#jpeg: unsupported arithmetic coding"; +const char wuffs_jpeg__error__unsupported_color_model[] = "#jpeg: unsupported color model"; +const char wuffs_jpeg__error__unsupported_fractional_sampling[] = "#jpeg: unsupported fractional sampling"; +const char wuffs_jpeg__error__unsupported_hierarchical_coding[] = "#jpeg: unsupported hierarchical coding"; +const char wuffs_jpeg__error__unsupported_implicit_height[] = "#jpeg: unsupported implicit height"; +const char wuffs_jpeg__error__unsupported_lossless_coding[] = "#jpeg: unsupported lossless coding"; +const char wuffs_jpeg__error__unsupported_marker[] = "#jpeg: unsupported marker"; +const char wuffs_jpeg__error__unsupported_precision_12_bits[] = "#jpeg: unsupported precision (12 bits)"; +const char wuffs_jpeg__error__unsupported_precision_16_bits[] = "#jpeg: unsupported precision (16 bits)"; +const char wuffs_jpeg__error__unsupported_precision[] = "#jpeg: unsupported precision"; +const char wuffs_jpeg__error__unsupported_scan_count[] = "#jpeg: unsupported scan count"; +const char wuffs_jpeg__error__internal_error_inconsistent_decoder_state[] = "#jpeg: internal error: inconsistent decoder state"; - uint32_t coro_susp_point = self->private_impl.p_decode_dht[0]; - if (coro_susp_point) { - v_tc4_th = self->private_data.s_decode_dht[0].v_tc4_th; - v_total_count = self->private_data.s_decode_dht[0].v_total_count; - v_i = self->private_data.s_decode_dht[0].v_i; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +// ---------------- Private Consts - if (self->private_impl.f_sof_marker == 0u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - while (self->private_impl.f_payload_length > 0u) { - if (self->private_impl.f_payload_length < 17u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - self->private_impl.f_payload_length -= 17u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (((v_c >> 4u) > 1u) || ((v_c & 15u) > 3u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - v_tc = (v_c >> 4u); - v_th = (v_c & 15u); - v_tc4_th = ((uint8_t)(((v_tc * 4u) | v_th))); - if ((self->private_impl.f_sof_marker == 192u) && ((v_tc4_th & 3u) > 1u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - v_i = 0u; - while (v_i < 16u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - self->private_data.f_dht_temp_counts[v_i] = t_1; - } - v_i += 1u; - } - v_working_total_count = 0u; - v_i = 0u; - while (v_i < 16u) { - v_working_total_count = ((v_working_total_count + ((uint32_t)(self->private_data.f_dht_temp_counts[v_i]))) & 65535u); - v_i += 1u; - } - if ((v_working_total_count <= 0u) || (256u < v_working_total_count)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - v_total_count = v_working_total_count; - if (self->private_impl.f_payload_length < v_total_count) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - self->private_impl.f_payload_length -= v_total_count; - v_i = 0u; - while (v_i < v_total_count) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] = t_2; - } - v_i += 1u; - } - while (v_i < 256u) { - self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] = 0u; - v_i += 1u; - } - if ((v_tc4_th & 4u) == 0u) { - v_i = 0u; - while (v_i < v_total_count) { - if (self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] > 15u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - v_i += 1u; - } - } - v_failed = wuffs_jpeg__decoder__calculate_huff_tables(self, v_tc4_th, v_total_count); - if (v_failed) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - self->private_impl.f_seen_dht[v_tc4_th] = true; - } +static const uint8_t +WUFFS_JPEG__UNZIG[80] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 1u, 8u, 16u, 9u, 2u, 3u, + 10u, 17u, 24u, 32u, 25u, 18u, 11u, 4u, + 5u, 12u, 19u, 26u, 33u, 40u, 48u, 41u, + 34u, 27u, 20u, 13u, 6u, 7u, 14u, 21u, + 28u, 35u, 42u, 49u, 56u, 57u, 50u, 43u, + 36u, 29u, 22u, 15u, 23u, 30u, 37u, 44u, + 51u, 58u, 59u, 52u, 45u, 38u, 31u, 39u, + 46u, 53u, 60u, 61u, 54u, 47u, 55u, 62u, + 63u, 63u, 63u, 63u, 63u, 63u, 63u, 63u, + 63u, 63u, 63u, 63u, 63u, 63u, 63u, 63u, +}; - goto ok; - ok: - self->private_impl.p_decode_dht[0] = 0; - goto exit; - } +static const uint8_t +WUFFS_JPEG__BIAS_AND_CLAMP[1024] WUFFS_BASE__POTENTIALLY_UNUSED = { + 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, + 136u, 137u, 138u, 139u, 140u, 141u, 142u, 143u, + 144u, 145u, 146u, 147u, 148u, 149u, 150u, 151u, + 152u, 153u, 154u, 155u, 156u, 157u, 158u, 159u, + 160u, 161u, 162u, 163u, 164u, 165u, 166u, 167u, + 168u, 169u, 170u, 171u, 172u, 173u, 174u, 175u, + 176u, 177u, 178u, 179u, 180u, 181u, 182u, 183u, + 184u, 185u, 186u, 187u, 188u, 189u, 190u, 191u, + 192u, 193u, 194u, 195u, 196u, 197u, 198u, 199u, + 200u, 201u, 202u, 203u, 204u, 205u, 206u, 207u, + 208u, 209u, 210u, 211u, 212u, 213u, 214u, 215u, + 216u, 217u, 218u, 219u, 220u, 221u, 222u, 223u, + 224u, 225u, 226u, 227u, 228u, 229u, 230u, 231u, + 232u, 233u, 234u, 235u, 236u, 237u, 238u, 239u, + 240u, 241u, 242u, 243u, 244u, 245u, 246u, 247u, + 248u, 249u, 250u, 251u, 252u, 253u, 254u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 1u, 2u, 3u, 4u, 5u, 6u, 7u, + 8u, 9u, 10u, 11u, 12u, 13u, 14u, 15u, + 16u, 17u, 18u, 19u, 20u, 21u, 22u, 23u, + 24u, 25u, 26u, 27u, 28u, 29u, 30u, 31u, + 32u, 33u, 34u, 35u, 36u, 37u, 38u, 39u, + 40u, 41u, 42u, 43u, 44u, 45u, 46u, 47u, + 48u, 49u, 50u, 51u, 52u, 53u, 54u, 55u, + 56u, 57u, 58u, 59u, 60u, 61u, 62u, 63u, + 64u, 65u, 66u, 67u, 68u, 69u, 70u, 71u, + 72u, 73u, 74u, 75u, 76u, 77u, 78u, 79u, + 80u, 81u, 82u, 83u, 84u, 85u, 86u, 87u, + 88u, 89u, 90u, 91u, 92u, 93u, 94u, 95u, + 96u, 97u, 98u, 99u, 100u, 101u, 102u, 103u, + 104u, 105u, 106u, 107u, 108u, 109u, 110u, 111u, + 112u, 113u, 114u, 115u, 116u, 117u, 118u, 119u, + 120u, 121u, 122u, 123u, 124u, 125u, 126u, 127u, +}; - goto suspend; - suspend: - self->private_impl.p_decode_dht[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_dht[0].v_tc4_th = v_tc4_th; - self->private_data.s_decode_dht[0].v_total_count = v_total_count; - self->private_data.s_decode_dht[0].v_i = v_i; +static const uint16_t +WUFFS_JPEG__EXTEND[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 65535u, 65533u, 65529u, 65521u, 65505u, 65473u, 65409u, + 65281u, 65025u, 64513u, 63489u, 61441u, 57345u, 49153u, 32769u, +}; - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +static const uint8_t +WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_LUMA[29] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 1u, 5u, 1u, 1u, 1u, 1u, + 1u, 1u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 1u, 2u, 3u, 4u, 5u, 6u, + 7u, 8u, 9u, 10u, 11u, +}; - return status; -} +static const uint8_t +WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_CHROMA[29] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1u, 0u, 3u, 1u, 1u, 1u, 1u, 1u, + 1u, 1u, 1u, 1u, 0u, 0u, 0u, 0u, + 0u, 0u, 1u, 2u, 3u, 4u, 5u, 6u, + 7u, 8u, 9u, 10u, 11u, +}; -// -------- func jpeg.decoder.calculate_huff_tables +static const uint8_t +WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_LUMA[179] WUFFS_BASE__POTENTIALLY_UNUSED = { + 16u, 0u, 2u, 1u, 3u, 3u, 2u, 4u, + 3u, 5u, 5u, 4u, 4u, 0u, 0u, 1u, + 125u, 1u, 2u, 3u, 0u, 4u, 17u, 5u, + 18u, 33u, 49u, 65u, 6u, 19u, 81u, 97u, + 7u, 34u, 113u, 20u, 50u, 129u, 145u, 161u, + 8u, 35u, 66u, 177u, 193u, 21u, 82u, 209u, + 240u, 36u, 51u, 98u, 114u, 130u, 9u, 10u, + 22u, 23u, 24u, 25u, 26u, 37u, 38u, 39u, + 40u, 41u, 42u, 52u, 53u, 54u, 55u, 56u, + 57u, 58u, 67u, 68u, 69u, 70u, 71u, 72u, + 73u, 74u, 83u, 84u, 85u, 86u, 87u, 88u, + 89u, 90u, 99u, 100u, 101u, 102u, 103u, 104u, + 105u, 106u, 115u, 116u, 117u, 118u, 119u, 120u, + 121u, 122u, 131u, 132u, 133u, 134u, 135u, 136u, + 137u, 138u, 146u, 147u, 148u, 149u, 150u, 151u, + 152u, 153u, 154u, 162u, 163u, 164u, 165u, 166u, + 167u, 168u, 169u, 170u, 178u, 179u, 180u, 181u, + 182u, 183u, 184u, 185u, 186u, 194u, 195u, 196u, + 197u, 198u, 199u, 200u, 201u, 202u, 210u, 211u, + 212u, 213u, 214u, 215u, 216u, 217u, 218u, 225u, + 226u, 227u, 228u, 229u, 230u, 231u, 232u, 233u, + 234u, 241u, 242u, 243u, 244u, 245u, 246u, 247u, + 248u, 249u, 250u, +}; + +static const uint8_t +WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_CHROMA[179] WUFFS_BASE__POTENTIALLY_UNUSED = { + 17u, 0u, 2u, 1u, 2u, 4u, 4u, 3u, + 4u, 7u, 5u, 4u, 4u, 0u, 1u, 2u, + 119u, 0u, 1u, 2u, 3u, 17u, 4u, 5u, + 33u, 49u, 6u, 18u, 65u, 81u, 7u, 97u, + 113u, 19u, 34u, 50u, 129u, 8u, 20u, 66u, + 145u, 161u, 177u, 193u, 9u, 35u, 51u, 82u, + 240u, 21u, 98u, 114u, 209u, 10u, 22u, 36u, + 52u, 225u, 37u, 241u, 23u, 24u, 25u, 26u, + 38u, 39u, 40u, 41u, 42u, 53u, 54u, 55u, + 56u, 57u, 58u, 67u, 68u, 69u, 70u, 71u, + 72u, 73u, 74u, 83u, 84u, 85u, 86u, 87u, + 88u, 89u, 90u, 99u, 100u, 101u, 102u, 103u, + 104u, 105u, 106u, 115u, 116u, 117u, 118u, 119u, + 120u, 121u, 122u, 130u, 131u, 132u, 133u, 134u, + 135u, 136u, 137u, 138u, 146u, 147u, 148u, 149u, + 150u, 151u, 152u, 153u, 154u, 162u, 163u, 164u, + 165u, 166u, 167u, 168u, 169u, 170u, 178u, 179u, + 180u, 181u, 182u, 183u, 184u, 185u, 186u, 194u, + 195u, 196u, 197u, 198u, 199u, 200u, 201u, 202u, + 210u, 211u, 212u, 213u, 214u, 215u, 216u, 217u, + 218u, 226u, 227u, 228u, 229u, 230u, 231u, 232u, + 233u, 234u, 242u, 243u, 244u, 245u, 246u, 247u, + 248u, 249u, 250u, +}; + +#define WUFFS_JPEG__QUIRKS_BASE 1220532224u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -static bool -wuffs_jpeg__decoder__calculate_huff_tables( +static wuffs_base__empty_struct +wuffs_jpeg__decoder__decode_idct( wuffs_jpeg__decoder* self, - uint8_t a_tc4_th, - uint32_t a_total_count) { - uint32_t v_i = 0; - uint8_t v_j = 0; - uint8_t v_k = 0; - uint32_t v_bit_length_minus_one = 0; - uint8_t v_bit_length = 0; - uint32_t v_bit_string = 0; - uint32_t v_slow = 0; - uint8_t v_prefix = 0; - uint16_t v_fast = 0; - uint32_t v_reps = 0; + wuffs_base__slice_u8 a_dst_buffer, + uint64_t a_dst_stride, + uint32_t a_q); - v_i = 0u; - v_k = 0u; - v_bit_length_minus_one = 0u; - while (v_i < a_total_count) { - while (v_k >= self->private_data.f_dht_temp_counts[v_bit_length_minus_one]) { - v_k = 0u; - v_bit_length_minus_one = ((v_bit_length_minus_one + 1u) & 15u); - } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_k += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - self->private_data.f_dht_temp_bit_lengths[v_i] = ((uint8_t)((v_bit_length_minus_one + 1u))); - v_i += 1u; - } - v_bit_length = 0u; - v_bit_string = 0u; - v_i = 0u; - while (v_i < a_total_count) { - while (v_bit_length < self->private_data.f_dht_temp_bit_lengths[v_i]) { - if (v_bit_length >= 16u) { - return true; - } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_bit_length += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_bit_string <<= 1u; - } - self->private_data.f_dht_temp_bit_strings[v_i] = ((uint16_t)(v_bit_string)); - v_bit_string += 1u; - if ((v_bit_string >> v_bit_length) > 0u) { - return true; - } - v_i += 1u; - } - v_k = 0u; - v_bit_length_minus_one = 0u; - while (true) { - if (self->private_data.f_dht_temp_counts[v_bit_length_minus_one] == 0u) { - self->private_impl.f_huff_tables_slow[a_tc4_th][v_bit_length_minus_one] = 0u; - } else { - v_slow = (255u & ((uint32_t)(((uint32_t)(v_k)) - ((uint32_t)(self->private_data.f_dht_temp_bit_strings[v_k]))))); - v_k += self->private_data.f_dht_temp_counts[v_bit_length_minus_one]; - self->private_impl.f_huff_tables_slow[a_tc4_th][v_bit_length_minus_one] = (v_slow | ((((uint32_t)(self->private_data.f_dht_temp_bit_strings[((uint8_t)(v_k - 1u))])) + 1u) << 8u)); - } - v_bit_length_minus_one = ((v_bit_length_minus_one + 1u) & 15u); - if (v_bit_length_minus_one == 0u) { - break; - } - } - v_i = 0u; - while (v_i < 256u) { - self->private_impl.f_huff_tables_fast[a_tc4_th][v_i] = 65535u; - v_i += 1u; - } - v_j = 0u; - v_bit_length_minus_one = 0u; - while (v_bit_length_minus_one < 8u) { - v_k = 0u; - while (v_k < self->private_data.f_dht_temp_counts[v_bit_length_minus_one]) { - v_prefix = ((uint8_t)((((uint32_t)(self->private_data.f_dht_temp_bit_strings[v_j])) << (7u - v_bit_length_minus_one)))); - v_fast = ((uint16_t)(((((uint32_t)((v_bit_length_minus_one + 1u))) << 8u) | ((uint32_t)(self->private_impl.f_huff_tables_symbols[a_tc4_th][v_j]))))); - v_reps = (((uint32_t)(1u)) << (7u - v_bit_length_minus_one)); - while (v_reps > 0u) { - self->private_impl.f_huff_tables_fast[a_tc4_th][v_prefix] = v_fast; - v_prefix += 1u; - v_reps -= 1u; - } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_k += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_j += 1u; - } - v_bit_length_minus_one += 1u; - } - return false; -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__decode_idct__choosy_default( + wuffs_jpeg__decoder* self, + wuffs_base__slice_u8 a_dst_buffer, + uint64_t a_dst_stride, + uint32_t a_q); -// -------- func jpeg.decoder.decode_sos +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__decode_idct_x86_avx2( + wuffs_jpeg__decoder* self, + wuffs_base__slice_u8 a_dst_buffer, + uint64_t a_dst_stride, + uint32_t a_q); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__decode_sos( +wuffs_jpeg__decoder__do_decode_image_config( wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_my = 0; - uint32_t v_mx = 0; - uint32_t v_decode_mcu_result = 0; - uint32_t v_bitstream_length = 0; - - uint32_t coro_susp_point = self->private_impl.p_decode_sos[0]; - if (coro_susp_point) { - v_my = self->private_data.s_decode_sos[0].v_my; - v_mx = self->private_data.s_decode_sos[0].v_mx; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); - if (self->private_impl.f_scan_count >= 64u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_scan_count); - goto exit; - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_jpeg__decoder__prepare_scan(self, a_src); - if (status.repr) { - goto suspend; - } - self->private_impl.f_next_restart_marker = 0u; - self->private_impl.f_mcu_previous_dc_values[0u] = 0u; - self->private_impl.f_mcu_previous_dc_values[1u] = 0u; - self->private_impl.f_mcu_previous_dc_values[2u] = 0u; - self->private_impl.f_mcu_previous_dc_values[3u] = 0u; - self->private_impl.f_restarts_remaining = self->private_impl.f_restart_interval; - self->private_impl.f_eob_run = 0u; - self->private_impl.f_bitstream_bits = 0u; - self->private_impl.f_bitstream_n_bits = 0u; - self->private_impl.f_bitstream_ri = 0u; - self->private_impl.f_bitstream_wi = 0u; - self->private_impl.f_bitstream_padding = 12345u; - wuffs_jpeg__decoder__fill_bitstream(self, a_src); - v_my = 0u; - while (v_my < self->private_impl.f_scan_height_in_mcus) { - v_mx = 0u; - while (v_mx < self->private_impl.f_scan_width_in_mcus) { - self->private_impl.f_mcu_current_block = 0u; - self->private_impl.f_mcu_zig_index = ((uint32_t)(self->private_impl.f_scan_ss)); - if (self->private_impl.f_sof_marker >= 194u) { - wuffs_jpeg__decoder__load_mcu_blocks(self, v_mx, v_my, a_workbuf); - } - while (true) { - v_decode_mcu_result = wuffs_jpeg__decoder__decode_mcu(self, a_workbuf, v_mx, v_my); - if (v_decode_mcu_result == 0u) { - break; - } else if (v_decode_mcu_result != 1u) { - status = wuffs_base__make_status(wuffs_jpeg__error__internal_error_inconsistent_decoder_state); - goto exit; - } - while (true) { - v_bitstream_length = ((uint32_t)(self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri)); - wuffs_jpeg__decoder__fill_bitstream(self, a_src); - if (v_bitstream_length < ((uint32_t)(self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri))) { - break; - } else if (self->private_impl.f_bitstream_padding == 0u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } else if ((a_src && a_src->meta.closed) && ! self->private_impl.f_bitstream_is_closed) { - if (self->private_impl.f_bitstream_wi < 1024u) { - wuffs_base__bulk_memset(&self->private_data.f_bitstream_buffer[self->private_impl.f_bitstream_wi], 264u, 0u); - self->private_impl.f_bitstream_wi += 264u; - self->private_impl.f_bitstream_is_closed = true; - } - break; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } - } - if (self->private_impl.f_sof_marker >= 194u) { - wuffs_jpeg__decoder__save_mcu_blocks(self, v_mx, v_my, a_workbuf); - } - if (self->private_impl.f_restarts_remaining > 0u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_restarts_remaining -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - if (self->private_impl.f_restarts_remaining == 0u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_jpeg__decoder__skip_past_the_next_restart_marker(self, a_src); - if (status.repr) { - goto suspend; - } - self->private_impl.f_mcu_previous_dc_values[0u] = 0u; - self->private_impl.f_mcu_previous_dc_values[1u] = 0u; - self->private_impl.f_mcu_previous_dc_values[2u] = 0u; - self->private_impl.f_mcu_previous_dc_values[3u] = 0u; - self->private_impl.f_restarts_remaining = self->private_impl.f_restart_interval; - self->private_impl.f_eob_run = 0u; - self->private_impl.f_bitstream_bits = 0u; - self->private_impl.f_bitstream_n_bits = 0u; - self->private_impl.f_bitstream_ri = 0u; - self->private_impl.f_bitstream_wi = 0u; - self->private_impl.f_bitstream_padding = 12345u; - } - } - v_mx += 1u; - } - v_my += 1u; - } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_scan_count, 1u); +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_dqt( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src); - ok: - self->private_impl.p_decode_sos[0] = 0; - goto exit; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_dri( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src); - goto suspend; - suspend: - self->private_impl.p_decode_sos[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_sos[0].v_my = v_my; - self->private_data.s_decode_sos[0].v_mx = v_mx; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_appn( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src, + uint8_t a_marker); - goto exit; - exit: - return status; -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_sof( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src); -// -------- func jpeg.decoder.prepare_scan +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__quantize_dimension( + const wuffs_jpeg__decoder* self, + uint32_t a_width, + uint8_t a_h, + uint8_t a_max_incl_h); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__prepare_scan( +wuffs_jpeg__decoder__do_decode_frame_config( wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - uint32_t v_i = 0; - uint32_t v_j = 0; - uint32_t v_j_max_incl = 0; - bool v_failed = false; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_prepare_scan[0]; - if (coro_susp_point) { - v_i = self->private_data.s_prepare_scan[0].v_i; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if ((self->private_impl.f_payload_length < 6u) || (self->private_impl.f_payload_length > 12u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if ((v_c < 1u) || (v_c > 4u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_num_components = ((uint32_t)(v_c)); - if ((self->private_impl.f_scan_num_components > self->private_impl.f_num_components) || (self->private_impl.f_payload_length != (4u + (2u * self->private_impl.f_scan_num_components)))) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_payload_length = 0u; - v_i = 0u; - while (v_i < self->private_impl.f_scan_num_components) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - v_j = 0u; - while (true) { - if (v_j >= self->private_impl.f_num_components) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - if (v_c == self->private_impl.f_components_c[v_j]) { - if ( ! self->private_impl.f_seen_dqt[self->private_impl.f_components_tq[v_j]]) { - status = wuffs_base__make_status(wuffs_jpeg__error__missing_quantization_table); - goto exit; - } - self->private_impl.f_scan_comps_cselector[v_i] = ((uint8_t)(v_j)); - break; - } - v_j += 1u; - } - v_j = 0u; - while (v_j < v_i) { - if (self->private_impl.f_scan_comps_cselector[v_i] == self->private_impl.f_scan_comps_cselector[v_j]) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - v_j += 1u; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - v_c = t_2; - } - if (((v_c >> 4u) > 3u) || ((v_c & 15u) > 3u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_comps_td[v_i] = (v_c >> 4u); - self->private_impl.f_scan_comps_ta[v_i] = (v_c & 15u); - if (self->private_impl.f_sof_marker == 192u) { - if ((self->private_impl.f_scan_comps_td[v_i] > 1u) || (self->private_impl.f_scan_comps_ta[v_i] > 1u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - } - v_i += 1u; - } - if (self->private_impl.f_sof_marker < 194u) { - self->private_data.s_prepare_scan[0].scratch = 3u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (self->private_data.s_prepare_scan[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_prepare_scan[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_prepare_scan[0].scratch; - self->private_impl.f_scan_ss = 0u; - self->private_impl.f_scan_se = 63u; - self->private_impl.f_scan_ah = 0u; - self->private_impl.f_scan_al = 0u; - } else { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; - } - if (v_c > 63u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_ss = v_c; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; - } - if ((v_c > 63u) || (v_c < self->private_impl.f_scan_ss)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_se = v_c; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; - } - if (((v_c >> 4u) > 14u) || ((v_c & 15u) > 13u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_ah = (v_c >> 4u); - self->private_impl.f_scan_al = (v_c & 15u); - if (self->private_impl.f_scan_ah > 0u) { - if ((self->private_impl.f_scan_ah - 1u) != self->private_impl.f_scan_al) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - } - if (self->private_impl.f_scan_ss == 0u) { - if (self->private_impl.f_scan_se != 0u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } else if (self->private_impl.f_scan_ah == 0u) { - self->private_impl.choosy_decode_mcu = ( - &wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits); - } else { - self->private_impl.choosy_decode_mcu = ( - &wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit); - } - } else { - if (self->private_impl.f_scan_num_components != 1u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } else if (self->private_impl.f_scan_ah == 0u) { - self->private_impl.choosy_decode_mcu = ( - &wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits); - } else { - self->private_impl.choosy_decode_mcu = ( - &wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit); - } - } - } - v_i = 0u; - while (v_i < self->private_impl.f_scan_num_components) { - if ((self->private_impl.f_scan_ss == 0u) && ! self->private_impl.f_seen_dht[(0u | self->private_impl.f_scan_comps_td[v_i])]) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - status = wuffs_jpeg__decoder__use_default_huffman_table(self, (0u | self->private_impl.f_scan_comps_td[v_i])); - if (status.repr) { - goto suspend; - } - } - if ((self->private_impl.f_scan_se != 0u) && ! self->private_impl.f_seen_dht[(4u | self->private_impl.f_scan_comps_ta[v_i])]) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_jpeg__decoder__use_default_huffman_table(self, (4u | self->private_impl.f_scan_comps_ta[v_i])); - if (status.repr) { - goto suspend; - } - } - v_j = ((uint32_t)(self->private_impl.f_scan_ss)); - v_j_max_incl = ((uint32_t)(wuffs_base__u8__min(self->private_impl.f_scan_se, 9u))); - while (v_j <= v_j_max_incl) { - self->private_impl.f_block_smoothing_lowest_scan_al[self->private_impl.f_scan_comps_cselector[v_i]][v_j] = self->private_impl.f_scan_al; - v_j += 1u; - } - v_i += 1u; - } - if (self->private_impl.f_scan_num_components == 1u) { - wuffs_jpeg__decoder__calculate_single_component_scan_fields(self); - } else { - v_failed = wuffs_jpeg__decoder__calculate_multiple_component_scan_fields(self); - if (v_failed) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - } + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); - goto ok; - ok: - self->private_impl.p_prepare_scan[0] = 0; - goto exit; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__do_decode_frame( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); - goto suspend; - suspend: - self->private_impl.p_prepare_scan[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_prepare_scan[0].v_i = v_i; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_dht( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src); - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +WUFFS_BASE__GENERATED_C_CODE +static bool +wuffs_jpeg__decoder__calculate_huff_tables( + wuffs_jpeg__decoder* self, + uint8_t a_tc4_th, + uint32_t a_total_count); - return status; -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_sos( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); -// -------- func jpeg.decoder.use_default_huffman_table +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__prepare_scan( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_jpeg__decoder__use_default_huffman_table( wuffs_jpeg__decoder* self, - uint8_t a_tc4_th) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__slice_u8 v_data = {0}; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - if (a_tc4_th == 0u) { - v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_LUMA), 29); - } else if (a_tc4_th == 1u) { - v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_CHROMA), 29); - } else if (a_tc4_th == 4u) { - v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_LUMA), 179); - } else if (a_tc4_th == 5u) { - v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_CHROMA), 179); - } else { - status = wuffs_base__make_status(wuffs_jpeg__error__missing_huffman_table); - goto exit; - } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_base__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - v_data, - 0u); - self->private_impl.f_payload_length = ((uint32_t)((((uint64_t)(v_data.len)) & 65535u))); - { - wuffs_base__status t_0 = wuffs_jpeg__decoder__decode_dht(self, v_r); - v_status = t_0; - } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; - } - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - - ok: - goto exit; - exit: - return status; -} - -// -------- func jpeg.decoder.calculate_single_component_scan_fields + uint8_t a_tc4_th); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_jpeg__decoder__calculate_single_component_scan_fields( - wuffs_jpeg__decoder* self) { - uint8_t v_csel = 0; - - self->private_impl.f_scan_comps_bx_offset[0u] = 0u; - self->private_impl.f_scan_comps_by_offset[0u] = 0u; - self->private_impl.f_mcu_num_blocks = 1u; - self->private_impl.f_mcu_blocks_sselector[0u] = 0u; - v_csel = self->private_impl.f_scan_comps_cselector[0u]; - self->private_impl.f_mcu_blocks_offset[0u] = self->private_impl.f_components_workbuf_offsets[v_csel]; - self->private_impl.f_mcu_blocks_mx_mul[0u] = 8u; - self->private_impl.f_mcu_blocks_my_mul[0u] = (8u * self->private_impl.f_components_workbuf_widths[v_csel]); - self->private_impl.f_mcu_blocks_dc_hselector[0u] = (0u | self->private_impl.f_scan_comps_td[0u]); - self->private_impl.f_mcu_blocks_ac_hselector[0u] = (4u | self->private_impl.f_scan_comps_ta[0u]); - self->private_impl.f_scan_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, self->private_impl.f_components_h[v_csel], self->private_impl.f_max_incl_components_h); - self->private_impl.f_scan_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, self->private_impl.f_components_v[v_csel], self->private_impl.f_max_incl_components_v); - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.calculate_multiple_component_scan_fields + wuffs_jpeg__decoder* self); WUFFS_BASE__GENERATED_C_CODE static bool wuffs_jpeg__decoder__calculate_multiple_component_scan_fields( - wuffs_jpeg__decoder* self) { - uint32_t v_i = 0; - uint32_t v_h = 0; - uint32_t v_v = 0; - uint32_t v_hv = 0; - uint32_t v_total_hv = 0; - uint32_t v_b = 0; - uint32_t v_bx_offset = 0; - uint32_t v_by_offset = 0; - uint8_t v_ssel = 0; - uint8_t v_csel = 0; - - v_total_hv = 0u; - v_i = 0u; - v_b = 0u; - v_bx_offset = 0u; - v_by_offset = 0u; - while (v_i < self->private_impl.f_scan_num_components) { - v_h = ((uint32_t)(self->private_impl.f_components_h[self->private_impl.f_scan_comps_cselector[v_i]])); - v_v = ((uint32_t)(self->private_impl.f_components_v[self->private_impl.f_scan_comps_cselector[v_i]])); - v_hv = (((uint32_t)(self->private_impl.f_components_h[self->private_impl.f_scan_comps_cselector[v_i]])) * ((uint32_t)(self->private_impl.f_components_v[self->private_impl.f_scan_comps_cselector[v_i]]))); - v_total_hv += v_hv; - while (v_hv > 0u) { - self->private_impl.f_scan_comps_bx_offset[(v_b & 15u)] = ((uint8_t)((v_bx_offset & 3u))); - self->private_impl.f_scan_comps_by_offset[(v_b & 15u)] = ((uint8_t)((v_by_offset & 3u))); - self->private_impl.f_mcu_blocks_sselector[(v_b & 15u)] = ((uint8_t)(v_i)); - v_b += 1u; - v_bx_offset += 1u; - if (v_bx_offset == v_h) { - v_bx_offset = 0u; - v_by_offset += 1u; - if (v_by_offset == v_v) { - v_by_offset = 0u; - } - } - v_hv -= 1u; - } - v_i += 1u; - } - if (v_total_hv > 10u) { - return true; - } - self->private_impl.f_mcu_num_blocks = v_total_hv; - v_b = 0u; - while (v_b < self->private_impl.f_mcu_num_blocks) { - v_ssel = self->private_impl.f_mcu_blocks_sselector[v_b]; - v_csel = self->private_impl.f_scan_comps_cselector[v_ssel]; - self->private_impl.f_mcu_blocks_offset[v_b] = (self->private_impl.f_components_workbuf_offsets[v_csel] + (8u * ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) + (8u * ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b])) * ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])))); - self->private_impl.f_mcu_blocks_mx_mul[v_b] = (8u * ((uint32_t)(self->private_impl.f_components_h[v_csel]))); - self->private_impl.f_mcu_blocks_my_mul[v_b] = (8u * ((uint32_t)(self->private_impl.f_components_v[v_csel])) * self->private_impl.f_components_workbuf_widths[v_csel]); - self->private_impl.f_mcu_blocks_dc_hselector[v_b] = (0u | self->private_impl.f_scan_comps_td[v_ssel]); - self->private_impl.f_mcu_blocks_ac_hselector[v_b] = (4u | self->private_impl.f_scan_comps_ta[v_ssel]); - v_b += 1u; - } - self->private_impl.f_scan_width_in_mcus = self->private_impl.f_width_in_mcus; - self->private_impl.f_scan_height_in_mcus = self->private_impl.f_height_in_mcus; - return false; -} - -// -------- func jpeg.decoder.fill_bitstream + wuffs_jpeg__decoder* self); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_jpeg__decoder__fill_bitstream( wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src) { - uint32_t v_wi = 0; - uint8_t v_c = 0; - uint32_t v_new_wi = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - if (self->private_impl.f_bitstream_ri <= 0u) { - } else if (self->private_impl.f_bitstream_ri >= self->private_impl.f_bitstream_wi) { - self->private_impl.f_bitstream_ri = 0u; - self->private_impl.f_bitstream_wi = 0u; - } else { - v_wi = (self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri); - wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_bitstream_buffer, 2048), wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi)); - self->private_impl.f_bitstream_ri = 0u; - self->private_impl.f_bitstream_wi = v_wi; - } - v_wi = self->private_impl.f_bitstream_wi; - while ((v_wi < 2048u) && (((uint64_t)(io2_a_src - iop_a_src)) > 0u)) { - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c < 255u) { - self->private_data.f_bitstream_buffer[v_wi] = v_c; - v_wi += 1u; - iop_a_src += 1u; - continue; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 1u) { - break; - } else if ((wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u) > 0u) { - break; - } else { - self->private_data.f_bitstream_buffer[v_wi] = 255u; - v_wi += 1u; - iop_a_src += 2u; - } - } - if (((uint64_t)(io2_a_src - iop_a_src)) > 1u) { - if ((wuffs_base__peek_u8be__no_bounds_check(iop_a_src) >= 255u) && ((wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u) > 0u)) { - v_new_wi = (wuffs_base__u32__min(v_wi, 1784u) + 264u); - v_new_wi = wuffs_base__u32__min(v_new_wi, (v_wi + self->private_impl.f_bitstream_padding)); - if (v_wi < v_new_wi) { - wuffs_base__u32__sat_sub_indirect(&self->private_impl.f_bitstream_padding, (v_new_wi - v_wi)); - wuffs_base__bulk_memset(&self->private_data.f_bitstream_buffer[v_wi], (v_new_wi - v_wi), 0u); - v_wi = v_new_wi; - } - } - } - self->private_impl.f_bitstream_wi = v_wi; - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.load_mcu_blocks_for_single_component + wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct @@ -44752,9 +44689,7 @@ wuffs_jpeg__decoder__load_mcu_blocks_for_single_component( uint32_t a_mx, uint32_t a_my, wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel) { - return (*self->private_impl.choosy_load_mcu_blocks_for_single_component)(self, a_mx, a_my, a_workbuf, a_csel); -} + uint32_t a_csel); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct @@ -44763,19 +44698,7 @@ wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default( uint32_t a_mx, uint32_t a_my, wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel) { - uint64_t v_stride16 = 0; - uint64_t v_offset = 0; - - v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[a_csel] * 16u))); - v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(a_mx)) * 128u) + (((uint64_t)(a_my)) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_base__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); - } - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.load_mcu_blocks + uint32_t a_csel); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct @@ -44783,34 +44706,7 @@ wuffs_jpeg__decoder__load_mcu_blocks( wuffs_jpeg__decoder* self, uint32_t a_mx, uint32_t a_my, - wuffs_base__slice_u8 a_workbuf) { - uint32_t v_b = 0; - uint8_t v_csel = 0; - uint64_t v_h = 0; - uint64_t v_v = 0; - uint64_t v_stride16 = 0; - uint64_t v_offset = 0; - - v_h = 1u; - v_v = 1u; - v_b = 0u; - while (v_b < self->private_impl.f_mcu_num_blocks) { - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_b]]; - if (self->private_impl.f_scan_num_components > 1u) { - v_h = ((uint64_t)(self->private_impl.f_components_h[v_csel])); - v_v = ((uint64_t)(self->private_impl.f_components_v[v_csel])); - } - v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[v_csel] * 16u))); - v_offset = (self->private_impl.f_components_workbuf_offsets[(v_csel | 4u)] + (((v_h * ((uint64_t)(a_mx))) + ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) * 128u) + (((v_v * ((uint64_t)(a_my))) + ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b]))) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_base__bulk_load_host_endian(&self->private_data.f_mcu_blocks[v_b], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); - } - v_b += 1u; - } - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.save_mcu_blocks + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct @@ -44818,4983 +44714,17911 @@ wuffs_jpeg__decoder__save_mcu_blocks( wuffs_jpeg__decoder* self, uint32_t a_mx, uint32_t a_my, - wuffs_base__slice_u8 a_workbuf) { - uint32_t v_b = 0; - uint8_t v_csel = 0; - uint64_t v_h = 0; - uint64_t v_v = 0; - uint64_t v_stride16 = 0; - uint64_t v_offset = 0; - - v_h = 1u; - v_v = 1u; - v_b = 0u; - while (v_b < self->private_impl.f_mcu_num_blocks) { - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_b]]; - if (self->private_impl.f_scan_num_components > 1u) { - v_h = ((uint64_t)(self->private_impl.f_components_h[v_csel])); - v_v = ((uint64_t)(self->private_impl.f_components_v[v_csel])); - } - v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[v_csel] * 16u))); - v_offset = (self->private_impl.f_components_workbuf_offsets[(v_csel | 4u)] + (((v_h * ((uint64_t)(a_mx))) + ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) * 128u) + (((v_v * ((uint64_t)(a_my))) + ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b]))) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_base__bulk_save_host_endian(&self->private_data.f_mcu_blocks[v_b], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); - } - v_b += 1u; - } - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.skip_past_the_next_restart_marker + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_jpeg__decoder__skip_past_the_next_restart_marker( wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_skip_past_the_next_restart_marker[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; - } else if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) < 255u) { - iop_a_src += 1u; - continue; - } - v_c = ((uint8_t)((wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u))); - if (v_c < 192u) { - iop_a_src += 2u; - continue; - } else if ((v_c < 208u) || (215u < v_c)) { - break; - } - v_c &= 7u; - if ((self->private_impl.f_next_restart_marker == ((v_c + 1u) & 7u)) || (self->private_impl.f_next_restart_marker == ((v_c + 2u) & 7u))) { - break; - } else if ((self->private_impl.f_next_restart_marker == ((v_c + 7u) & 7u)) || (self->private_impl.f_next_restart_marker == ((v_c + 6u) & 7u))) { - iop_a_src += 2u; - continue; - } else { - iop_a_src += 2u; - break; - } - } - self->private_impl.f_next_restart_marker = (((uint8_t)(self->private_impl.f_next_restart_marker + 1u)) & 7u); - - ok: - self->private_impl.p_skip_past_the_next_restart_marker[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_skip_past_the_next_restart_marker[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func jpeg.decoder.apply_progressive_idct + wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_jpeg__decoder__apply_progressive_idct( wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf) { - uint32_t v_csel = 0; - bool v_block_smoothing_applicable = false; - uint32_t v_scan_width_in_mcus = 0; - uint32_t v_scan_height_in_mcus = 0; - uint32_t v_mcu_blocks_mx_mul_0 = 0; - uint32_t v_mcu_blocks_my_mul_0 = 0; - uint32_t v_my = 0; - uint32_t v_mx = 0; - uint64_t v_stride = 0; - uint64_t v_offset = 0; - uint8_t v_stashed_mcu_blocks_0[128] = {0}; - - wuffs_base__bulk_save_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__make_slice_u8(v_stashed_mcu_blocks_0, 128)); - v_block_smoothing_applicable = true; - v_csel = 0u; - while (v_csel < self->private_impl.f_num_components) { - if ((self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][0u] >= 16u) || wuffs_jpeg__decoder__top_left_quants_has_zero(self, ((uint32_t)(self->private_impl.f_components_tq[v_csel])))) { - v_block_smoothing_applicable = false; - } - v_csel += 1u; - } - v_csel = 0u; - while (v_csel < self->private_impl.f_num_components) { - v_scan_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, self->private_impl.f_components_h[v_csel], self->private_impl.f_max_incl_components_h); - v_scan_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, self->private_impl.f_components_v[v_csel], self->private_impl.f_max_incl_components_v); - v_mcu_blocks_mx_mul_0 = 8u; - v_mcu_blocks_my_mul_0 = (8u * self->private_impl.f_components_workbuf_widths[v_csel]); - if (v_block_smoothing_applicable && (0u != (self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][1u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][2u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][3u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][4u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][5u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][6u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][8u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][8u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][9u]))) { - self->private_impl.choosy_load_mcu_blocks_for_single_component = ( - &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth); - self->private_impl.f_block_smoothing_mx_max_incl = wuffs_base__u32__sat_sub(v_scan_width_in_mcus, 1u); - self->private_impl.f_block_smoothing_my_max_incl = wuffs_base__u32__sat_sub(v_scan_height_in_mcus, 1u); - } else { - self->private_impl.choosy_load_mcu_blocks_for_single_component = ( - &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default); - } - v_my = 0u; - while (v_my < v_scan_height_in_mcus) { - v_mx = 0u; - while (v_mx < v_scan_width_in_mcus) { - wuffs_jpeg__decoder__load_mcu_blocks_for_single_component(self, - v_mx, - v_my, - a_workbuf, - v_csel); - v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])); - v_offset = (self->private_impl.f_components_workbuf_offsets[v_csel] + (((uint64_t)(v_mcu_blocks_mx_mul_0)) * ((uint64_t)(v_mx))) + (((uint64_t)(v_mcu_blocks_my_mul_0)) * ((uint64_t)(v_my)))); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_jpeg__decoder__decode_idct(self, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); - } - v_mx += 1u; - } - v_my += 1u; - } - v_csel += 1u; - } - wuffs_base__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__make_slice_u8(v_stashed_mcu_blocks_0, 128)); - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.swizzle_gray + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_jpeg__decoder__swizzle_gray( wuffs_jpeg__decoder* self, wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_length = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint32_t v_y = 0; - uint64_t v_stride = 0; - - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - return wuffs_base__make_status(wuffs_base__error__unsupported_option); - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_length = ((uint64_t)((v_dst_bytes_per_pixel * self->private_impl.f_width))); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_y = 0u; - while (v_y < self->private_impl.f_height) { - v_dst = wuffs_base__table_u8__row_u32(v_tab, v_y); - if (v_dst_length < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_length); - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), a_workbuf); - v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[0u])); - if (v_stride <= ((uint64_t)(a_workbuf.len))) { - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, v_stride); - } else { - a_workbuf = wuffs_base__utility__empty_slice_u8(); - } - v_y += 1u; - } - return wuffs_base__make_status(NULL); -} - -// -------- func jpeg.decoder.swizzle_colorful + wuffs_base__slice_u8 a_workbuf, + uint32_t a_x0, + uint32_t a_x1, + uint32_t a_y0, + uint32_t a_y1, + uint64_t a_stride); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_jpeg__decoder__swizzle_colorful( wuffs_jpeg__decoder* self, wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__slice_u8 v_src0 = {0}; - wuffs_base__slice_u8 v_src1 = {0}; - wuffs_base__slice_u8 v_src2 = {0}; - wuffs_base__slice_u8 v_src3 = {0}; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - if ((self->private_impl.f_components_workbuf_offsets[0u] <= self->private_impl.f_components_workbuf_offsets[1u]) && (self->private_impl.f_components_workbuf_offsets[1u] <= ((uint64_t)(a_workbuf.len)))) { - v_src0 = wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_components_workbuf_offsets[0u], - self->private_impl.f_components_workbuf_offsets[1u]); - } - if ((self->private_impl.f_components_workbuf_offsets[1u] <= self->private_impl.f_components_workbuf_offsets[2u]) && (self->private_impl.f_components_workbuf_offsets[2u] <= ((uint64_t)(a_workbuf.len)))) { - v_src1 = wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_components_workbuf_offsets[1u], - self->private_impl.f_components_workbuf_offsets[2u]); - } - if ((self->private_impl.f_components_workbuf_offsets[2u] <= self->private_impl.f_components_workbuf_offsets[3u]) && (self->private_impl.f_components_workbuf_offsets[3u] <= ((uint64_t)(a_workbuf.len)))) { - v_src2 = wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_components_workbuf_offsets[2u], - self->private_impl.f_components_workbuf_offsets[3u]); - } - if ((self->private_impl.f_components_workbuf_offsets[3u] <= self->private_impl.f_components_workbuf_offsets[4u]) && (self->private_impl.f_components_workbuf_offsets[4u] <= ((uint64_t)(a_workbuf.len)))) { - v_src3 = wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_components_workbuf_offsets[3u], - self->private_impl.f_components_workbuf_offsets[4u]); - } - v_status = wuffs_base__pixel_swizzler__swizzle_ycck(&self->private_impl.f_swizzler, - a_dst, - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), - self->private_impl.f_width, - self->private_impl.f_height, - v_src0, - v_src1, - v_src2, - v_src3, - self->private_impl.f_components_workbuf_widths[0u], - self->private_impl.f_components_workbuf_widths[1u], - self->private_impl.f_components_workbuf_widths[2u], - self->private_impl.f_components_workbuf_widths[3u], - self->private_impl.f_components_workbuf_heights[0u], - self->private_impl.f_components_workbuf_heights[1u], - self->private_impl.f_components_workbuf_heights[2u], - self->private_impl.f_components_workbuf_heights[3u], - self->private_impl.f_components_workbuf_widths[0u], - self->private_impl.f_components_workbuf_widths[1u], - self->private_impl.f_components_workbuf_widths[2u], - self->private_impl.f_components_workbuf_widths[3u], - self->private_impl.f_components_h[0u], - self->private_impl.f_components_h[1u], - self->private_impl.f_components_h[2u], - self->private_impl.f_components_h[3u], - self->private_impl.f_components_v[0u], - self->private_impl.f_components_v[1u], - self->private_impl.f_components_v[2u], - self->private_impl.f_components_v[3u], - self->private_impl.f_is_rgb_or_cmyk, - true, - wuffs_base__make_slice_u8(self->private_data.f_swizzle_ycck_scratch_buffer_2k, 2048)); - return wuffs_base__status__ensure_not_a_suspension(v_status); -} - -// -------- func jpeg.decoder.frame_dirty_rect + wuffs_base__slice_u8 a_workbuf, + uint32_t a_x0, + uint32_t a_x1, + uint32_t a_y0, + uint32_t a_y1); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_jpeg__decoder__frame_dirty_rect( - const wuffs_jpeg__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} - -// -------- func jpeg.decoder.num_animation_loops +static bool +wuffs_jpeg__decoder__top_left_quants_has_zero( + const wuffs_jpeg__decoder* self, + uint32_t a_q); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_jpeg__decoder__num_animation_loops( - const wuffs_jpeg__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func jpeg.decoder.num_decoded_frame_configs +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_csel); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_jpeg__decoder__num_decoded_frame_configs( - const wuffs_jpeg__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 32u) { - return 1u; - } - return 0u; -} - -// -------- func jpeg.decoder.num_decoded_frames +static uint32_t +wuffs_jpeg__decoder__decode_mcu( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_jpeg__decoder__num_decoded_frames( - const wuffs_jpeg__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 64u) { - return 1u; - } - return 0u; -} - -// -------- func jpeg.decoder.restart_frame +static uint32_t +wuffs_jpeg__decoder__decode_mcu__choosy_default( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_jpeg__decoder__restart_frame( +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits( wuffs_jpeg__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - uint32_t v_i = 0; - uint32_t v_j = 0; + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my); - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if (a_index != 0u) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - self->private_impl.f_call_sequence = 40u; - self->private_impl.f_bitstream_is_closed = false; - self->private_impl.f_frame_config_io_position = a_io_position; - self->private_impl.f_scan_count = 0u; - self->private_impl.f_restart_interval = self->private_impl.f_saved_restart_interval; - v_i = 0u; - while (v_i < 4u) { - self->private_impl.f_seen_dqt[v_i] = self->private_impl.f_saved_seen_dqt[v_i]; - v_j = 0u; - while (v_j < 64u) { - self->private_impl.f_quant_tables[v_i][v_j] = self->private_impl.f_saved_quant_tables[v_i][v_j]; - v_j += 1u; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 4u) { - v_j = 0u; - while (v_j < 10u) { - self->private_impl.f_block_smoothing_lowest_scan_al[v_i][v_j] = 16u; - v_j += 1u; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 8u) { - self->private_impl.f_seen_dht[v_i] = false; - v_i += 1u; - } - return wuffs_base__make_status(NULL); -} +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my); -// -------- func jpeg.decoder.set_report_metadata +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_jpeg__decoder__set_report_metadata( +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit( wuffs_jpeg__decoder* self, - uint32_t a_fourcc, - bool a_report) { - return wuffs_base__make_empty_struct(); -} + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my); -// -------- func jpeg.decoder.tell_me_more +// ---------------- VTables -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_jpeg__decoder__tell_me_more( +const wuffs_base__image_decoder__func_ptrs +wuffs_jpeg__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_jpeg__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_jpeg__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_jpeg__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_jpeg__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_jpeg__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_jpeg__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_jpeg__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_jpeg__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_jpeg__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_jpeg__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_jpeg__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_jpeg__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_jpeg__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_jpeg__decoder__initialize( wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; + self->private_impl.choosy_decode_idct = &wuffs_jpeg__decoder__decode_idct__choosy_default; + self->private_impl.choosy_load_mcu_blocks_for_single_component = &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default; + self->private_impl.choosy_decode_mcu = &wuffs_jpeg__decoder__decode_mcu__choosy_default; - goto ok; - ok: - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_jpeg__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); } -// -------- func jpeg.decoder.history_retain_length - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_jpeg__decoder__history_retain_length( - const wuffs_jpeg__decoder* self) { - if (!self) { - return 0; +wuffs_jpeg__decoder* +wuffs_jpeg__decoder__alloc(void) { + wuffs_jpeg__decoder* x = + (wuffs_jpeg__decoder*)(calloc(1, sizeof(wuffs_jpeg__decoder))); + if (!x) { + return NULL; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if (wuffs_jpeg__decoder__initialize( + x, sizeof(wuffs_jpeg__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; } + return x; +} - return 0u; +size_t +sizeof__wuffs_jpeg__decoder(void) { + return sizeof(wuffs_jpeg__decoder); } -// -------- func jpeg.decoder.workbuf_len +// ---------------- Function Implementations + +// -------- func jpeg.decoder.decode_idct WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_jpeg__decoder__workbuf_len( - const wuffs_jpeg__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } - - return wuffs_base__utility__make_range_ii_u64(self->private_impl.f_components_workbuf_offsets[8u], self->private_impl.f_components_workbuf_offsets[8u]); -} - -// -------- func jpeg.decoder.top_left_quants_has_zero - -WUFFS_BASE__GENERATED_C_CODE -static bool -wuffs_jpeg__decoder__top_left_quants_has_zero( - const wuffs_jpeg__decoder* self, +static wuffs_base__empty_struct +wuffs_jpeg__decoder__decode_idct( + wuffs_jpeg__decoder* self, + wuffs_base__slice_u8 a_dst_buffer, + uint64_t a_dst_stride, uint32_t a_q) { - return ((self->private_impl.f_quant_tables[a_q][0u] == 0u) || - (self->private_impl.f_quant_tables[a_q][1u] == 0u) || - (self->private_impl.f_quant_tables[a_q][2u] == 0u) || - (self->private_impl.f_quant_tables[a_q][3u] == 0u) || - (self->private_impl.f_quant_tables[a_q][8u] == 0u) || - (self->private_impl.f_quant_tables[a_q][9u] == 0u) || - (self->private_impl.f_quant_tables[a_q][10u] == 0u) || - (self->private_impl.f_quant_tables[a_q][16u] == 0u) || - (self->private_impl.f_quant_tables[a_q][17u] == 0u) || - (self->private_impl.f_quant_tables[a_q][24u] == 0u)); + return (*self->private_impl.choosy_decode_idct)(self, a_dst_buffer, a_dst_stride, a_q); } -// -------- func jpeg.decoder.load_mcu_blocks_for_single_component_smooth - WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth( +wuffs_jpeg__decoder__decode_idct__choosy_default( wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel) { - uint64_t v_stride16 = 0; - uint64_t v_offset = 0; - uint32_t v_dx = 0; - uint32_t v_dy = 0; - uint32_t v_mx = 0; - uint32_t v_my = 0; - uint8_t v_q = 0; - uint32_t v_q_00 = 0; - uint32_t v_q_xy = 0; - uint8_t v_al = 0; - uint32_t v_scratch = 0; - uint32_t v_limit = 0; + wuffs_base__slice_u8 a_dst_buffer, + uint64_t a_dst_stride, + uint32_t a_q) { + uint32_t v_bq0 = 0; + uint32_t v_bq2 = 0; + uint32_t v_bq4 = 0; + uint32_t v_bq6 = 0; + uint32_t v_ca = 0; + uint32_t v_cb2 = 0; + uint32_t v_cb6 = 0; + uint32_t v_ccp = 0; + uint32_t v_ccm = 0; + uint32_t v_cd0 = 0; + uint32_t v_cd1 = 0; + uint32_t v_cd2 = 0; + uint32_t v_cd3 = 0; + uint32_t v_bq1 = 0; + uint32_t v_bq3 = 0; + uint32_t v_bq5 = 0; + uint32_t v_bq7 = 0; + uint32_t v_ci51 = 0; + uint32_t v_ci53 = 0; + uint32_t v_ci71 = 0; + uint32_t v_ci73 = 0; + uint32_t v_cj = 0; + uint32_t v_ck1 = 0; + uint32_t v_ck3 = 0; + uint32_t v_ck5 = 0; + uint32_t v_ck7 = 0; + uint32_t v_cl51 = 0; + uint32_t v_cl73 = 0; + uint32_t v_in0 = 0; + uint32_t v_in2 = 0; + uint32_t v_in4 = 0; + uint32_t v_in6 = 0; + uint32_t v_ra = 0; + uint32_t v_rb2 = 0; + uint32_t v_rb6 = 0; + uint32_t v_rcp = 0; + uint32_t v_rcm = 0; + uint32_t v_rd0 = 0; + uint32_t v_rd1 = 0; + uint32_t v_rd2 = 0; + uint32_t v_rd3 = 0; + uint32_t v_in1 = 0; + uint32_t v_in3 = 0; + uint32_t v_in5 = 0; + uint32_t v_in7 = 0; + uint32_t v_ri51 = 0; + uint32_t v_ri53 = 0; + uint32_t v_ri71 = 0; + uint32_t v_ri73 = 0; + uint32_t v_rj = 0; + uint32_t v_rk1 = 0; + uint32_t v_rk3 = 0; + uint32_t v_rk5 = 0; + uint32_t v_rk7 = 0; + uint32_t v_rl51 = 0; + uint32_t v_rl73 = 0; + uint32_t v_intermediate[64] = {0}; - v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[a_csel] * 16u))); - v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(a_mx)) * 128u) + (((uint64_t)(a_my)) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_base__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + if (8u > a_dst_stride) { + return wuffs_base__make_empty_struct(); } - v_dy = 0u; - while (v_dy < 5u) { - v_my = wuffs_base__u32__min(self->private_impl.f_block_smoothing_my_max_incl, wuffs_base__u32__sat_sub((a_my + v_dy), 2u)); - v_dx = 0u; - while (v_dx < 5u) { - v_mx = wuffs_base__u32__min(self->private_impl.f_block_smoothing_mx_max_incl, wuffs_base__u32__sat_sub((a_mx + v_dx), 2u)); - v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(v_mx)) * 128u) + (((uint64_t)(v_my)) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_base__bulk_load_host_endian(&self->private_impl.f_block_smoothing_dc_values[v_dy][v_dx], 1u * (size_t)2u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); - } - v_dx += 1u; - } - v_dy += 1u; + if (0u == (self->private_data.f_mcu_blocks[0u][8u] | + self->private_data.f_mcu_blocks[0u][16u] | + self->private_data.f_mcu_blocks[0u][24u] | + self->private_data.f_mcu_blocks[0u][32u] | + self->private_data.f_mcu_blocks[0u][40u] | + self->private_data.f_mcu_blocks[0u][48u] | + self->private_data.f_mcu_blocks[0u][56u])) { + v_intermediate[0u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][0u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][0u])))) << 2u)); + v_intermediate[8u] = v_intermediate[0u]; + v_intermediate[16u] = v_intermediate[0u]; + v_intermediate[24u] = v_intermediate[0u]; + v_intermediate[32u] = v_intermediate[0u]; + v_intermediate[40u] = v_intermediate[0u]; + v_intermediate[48u] = v_intermediate[0u]; + v_intermediate[56u] = v_intermediate[0u]; + } else { + v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][16u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][16u])))); + v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][48u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][48u])))); + v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); + v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); + v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); + v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][0u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][0u])))); + v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][32u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][32u])))); + v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); + v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); + v_cd0 = ((uint32_t)(v_ccp + v_cb2)); + v_cd1 = ((uint32_t)(v_ccm + v_cb6)); + v_cd2 = ((uint32_t)(v_ccm - v_cb6)); + v_cd3 = ((uint32_t)(v_ccp - v_cb2)); + v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][8u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][8u])))); + v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][24u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][24u])))); + v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][40u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][40u])))); + v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][56u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][56u])))); + v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); + v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); + v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); + v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); + v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); + v_ck1 = ((uint32_t)(v_bq1 * 12299u)); + v_ck3 = ((uint32_t)(v_bq3 * 25172u)); + v_ck5 = ((uint32_t)(v_bq5 * 16819u)); + v_ck7 = ((uint32_t)(v_bq7 * 2446u)); + v_ci51 *= 4294964100u; + v_ci53 *= 4294946301u; + v_ci71 *= 4294959923u; + v_ci73 *= 4294951227u; + v_cl51 = ((uint32_t)(v_ci51 + v_cj)); + v_cl73 = ((uint32_t)(v_ci73 + v_cj)); + v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); + v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); + v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); + v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); + v_intermediate[0u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); + v_intermediate[56u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); + v_intermediate[8u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); + v_intermediate[48u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); + v_intermediate[16u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); + v_intermediate[40u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); + v_intermediate[24u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); + v_intermediate[32u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); } - v_q = self->private_impl.f_components_tq[a_csel]; - v_q_00 = ((uint32_t)(self->private_impl.f_quant_tables[v_q][0u])); - if (v_q_00 <= 0u) { - return wuffs_base__make_empty_struct(); + if (0u == (self->private_data.f_mcu_blocks[0u][9u] | + self->private_data.f_mcu_blocks[0u][17u] | + self->private_data.f_mcu_blocks[0u][25u] | + self->private_data.f_mcu_blocks[0u][33u] | + self->private_data.f_mcu_blocks[0u][41u] | + self->private_data.f_mcu_blocks[0u][49u] | + self->private_data.f_mcu_blocks[0u][57u])) { + v_intermediate[1u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][1u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][1u])))) << 2u)); + v_intermediate[9u] = v_intermediate[1u]; + v_intermediate[17u] = v_intermediate[1u]; + v_intermediate[25u] = v_intermediate[1u]; + v_intermediate[33u] = v_intermediate[1u]; + v_intermediate[41u] = v_intermediate[1u]; + v_intermediate[49u] = v_intermediate[1u]; + v_intermediate[57u] = v_intermediate[1u]; + } else { + v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][17u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][17u])))); + v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][49u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][49u])))); + v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); + v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); + v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); + v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][1u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][1u])))); + v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][33u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][33u])))); + v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); + v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); + v_cd0 = ((uint32_t)(v_ccp + v_cb2)); + v_cd1 = ((uint32_t)(v_ccm + v_cb6)); + v_cd2 = ((uint32_t)(v_ccm - v_cb6)); + v_cd3 = ((uint32_t)(v_ccp - v_cb2)); + v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][9u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][9u])))); + v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][25u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][25u])))); + v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][41u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][41u])))); + v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][57u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][57u])))); + v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); + v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); + v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); + v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); + v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); + v_ck1 = ((uint32_t)(v_bq1 * 12299u)); + v_ck3 = ((uint32_t)(v_bq3 * 25172u)); + v_ck5 = ((uint32_t)(v_bq5 * 16819u)); + v_ck7 = ((uint32_t)(v_bq7 * 2446u)); + v_ci51 *= 4294964100u; + v_ci53 *= 4294946301u; + v_ci71 *= 4294959923u; + v_ci73 *= 4294951227u; + v_cl51 = ((uint32_t)(v_ci51 + v_cj)); + v_cl73 = ((uint32_t)(v_ci73 + v_cj)); + v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); + v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); + v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); + v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); + v_intermediate[1u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); + v_intermediate[57u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); + v_intermediate[9u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); + v_intermediate[49u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); + v_intermediate[17u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); + v_intermediate[41u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); + v_intermediate[25u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); + v_intermediate[33u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); } - if (0u != (16u & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][1u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][2u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][3u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][4u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][5u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][6u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][7u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][8u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][9u])) { - v_scratch = 0u; - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(152u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + 128u)) / 256u))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + 128u)) / 256u))); - } - self->private_data.f_mcu_blocks[0u][0u] = ((uint16_t)(v_scratch)); - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][1u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][1u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(38u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(4294967258u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][1u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][2u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][2u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(4294967282u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][2u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][3u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][3u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][3u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][8u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][8u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(38u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(4294967258u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][8u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][9u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][9u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(9u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967287u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967287u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(9u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][9u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][10u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][10u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][10u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][16u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][16u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(4294967282u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][16u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][17u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][17u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][17u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][24u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][24u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][24u] = ((uint16_t)(v_scratch)); - } + if (0u == (self->private_data.f_mcu_blocks[0u][10u] | + self->private_data.f_mcu_blocks[0u][18u] | + self->private_data.f_mcu_blocks[0u][26u] | + self->private_data.f_mcu_blocks[0u][34u] | + self->private_data.f_mcu_blocks[0u][42u] | + self->private_data.f_mcu_blocks[0u][50u] | + self->private_data.f_mcu_blocks[0u][58u])) { + v_intermediate[2u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][2u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][2u])))) << 2u)); + v_intermediate[10u] = v_intermediate[2u]; + v_intermediate[18u] = v_intermediate[2u]; + v_intermediate[26u] = v_intermediate[2u]; + v_intermediate[34u] = v_intermediate[2u]; + v_intermediate[42u] = v_intermediate[2u]; + v_intermediate[50u] = v_intermediate[2u]; + v_intermediate[58u] = v_intermediate[2u]; } else { - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][1u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][1u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][1u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(4294967289u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(50u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(4294967246u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } - self->private_data.f_mcu_blocks[0u][1u] = ((uint16_t)(v_scratch)); - } - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][5u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][2u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][2u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(4294967272u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } - self->private_data.f_mcu_blocks[0u][2u] = ((uint16_t)(v_scratch)); - } - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][2u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][8u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][8u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(4294967289u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(50u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(4294967246u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } - self->private_data.f_mcu_blocks[0u][8u] = ((uint16_t)(v_scratch)); - } - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][4u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][9u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][9u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(10u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967286u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967286u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(10u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } - self->private_data.f_mcu_blocks[0u][9u] = ((uint16_t)(v_scratch)); - } - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][3u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][16u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][16u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(4294967272u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } - self->private_data.f_mcu_blocks[0u][16u] = ((uint16_t)(v_scratch)); - } + v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][18u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][18u])))); + v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][50u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][50u])))); + v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); + v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); + v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); + v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][2u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][2u])))); + v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][34u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][34u])))); + v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); + v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); + v_cd0 = ((uint32_t)(v_ccp + v_cb2)); + v_cd1 = ((uint32_t)(v_ccm + v_cb6)); + v_cd2 = ((uint32_t)(v_ccm - v_cb6)); + v_cd3 = ((uint32_t)(v_ccp - v_cb2)); + v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][10u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][10u])))); + v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][26u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][26u])))); + v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][42u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][42u])))); + v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][58u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][58u])))); + v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); + v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); + v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); + v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); + v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); + v_ck1 = ((uint32_t)(v_bq1 * 12299u)); + v_ck3 = ((uint32_t)(v_bq3 * 25172u)); + v_ck5 = ((uint32_t)(v_bq5 * 16819u)); + v_ck7 = ((uint32_t)(v_bq7 * 2446u)); + v_ci51 *= 4294964100u; + v_ci53 *= 4294946301u; + v_ci71 *= 4294959923u; + v_ci73 *= 4294951227u; + v_cl51 = ((uint32_t)(v_ci51 + v_cj)); + v_cl73 = ((uint32_t)(v_ci73 + v_cj)); + v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); + v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); + v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); + v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); + v_intermediate[2u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); + v_intermediate[58u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); + v_intermediate[10u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); + v_intermediate[50u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); + v_intermediate[18u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); + v_intermediate[42u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); + v_intermediate[26u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); + v_intermediate[34u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); } - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.decode_mcu - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - return (*self->private_impl.choosy_decode_mcu)(self, a_workbuf, a_mx, a_my); -} - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu__choosy_default( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint8_t v_csel = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - uint8_t v_dc_h = 0; - uint32_t v_dc_symbol = 0; - uint32_t v_dc_ht_fast = 0; - uint32_t v_dc_bl = 0; - uint32_t v_dc_code = 0; - uint32_t v_dc_blm1 = 0; - uint32_t v_dc_ht_slow = 0; - uint16_t v_dc_value = 0; - uint16_t v_dc_extend = 0; - const uint16_t* v_ac_huff_table_fast = NULL; - uint8_t v_ac_h = 0; - uint32_t v_ac_symbol = 0; - uint32_t v_ac_ht_fast = 0; - uint32_t v_ac_bl = 0; - uint32_t v_ac_code = 0; - uint32_t v_ac_blm1 = 0; - uint32_t v_ac_ht_slow = 0; - uint16_t v_ac_value = 0; - uint16_t v_ac_extend = 0; - uint32_t v_ac_rrrr = 0; - uint32_t v_ac_ssss = 0; - uint32_t v_z = 0; - uint32_t v_mcb = 0; - uint64_t v_stride = 0; - uint64_t v_offset = 0; - - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; + if (0u == (self->private_data.f_mcu_blocks[0u][11u] | + self->private_data.f_mcu_blocks[0u][19u] | + self->private_data.f_mcu_blocks[0u][27u] | + self->private_data.f_mcu_blocks[0u][35u] | + self->private_data.f_mcu_blocks[0u][43u] | + self->private_data.f_mcu_blocks[0u][51u] | + self->private_data.f_mcu_blocks[0u][59u])) { + v_intermediate[3u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][3u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][3u])))) << 2u)); + v_intermediate[11u] = v_intermediate[3u]; + v_intermediate[19u] = v_intermediate[3u]; + v_intermediate[27u] = v_intermediate[3u]; + v_intermediate[35u] = v_intermediate[3u]; + v_intermediate[43u] = v_intermediate[3u]; + v_intermediate[51u] = v_intermediate[3u]; + v_intermediate[59u] = v_intermediate[3u]; + } else { + v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][19u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][19u])))); + v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][51u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][51u])))); + v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); + v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); + v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); + v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][3u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][3u])))); + v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][35u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][35u])))); + v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); + v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); + v_cd0 = ((uint32_t)(v_ccp + v_cb2)); + v_cd1 = ((uint32_t)(v_ccm + v_cb6)); + v_cd2 = ((uint32_t)(v_ccm - v_cb6)); + v_cd3 = ((uint32_t)(v_ccp - v_cb2)); + v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][11u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][11u])))); + v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][27u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][27u])))); + v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][43u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][43u])))); + v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][59u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][59u])))); + v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); + v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); + v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); + v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); + v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); + v_ck1 = ((uint32_t)(v_bq1 * 12299u)); + v_ck3 = ((uint32_t)(v_bq3 * 25172u)); + v_ck5 = ((uint32_t)(v_bq5 * 16819u)); + v_ck7 = ((uint32_t)(v_bq7 * 2446u)); + v_ci51 *= 4294964100u; + v_ci53 *= 4294946301u; + v_ci71 *= 4294959923u; + v_ci73 *= 4294951227u; + v_cl51 = ((uint32_t)(v_ci51 + v_cj)); + v_cl73 = ((uint32_t)(v_ci73 + v_cj)); + v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); + v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); + v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); + v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); + v_intermediate[3u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); + v_intermediate[59u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); + v_intermediate[11u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); + v_intermediate[51u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); + v_intermediate[19u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); + v_intermediate[43u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); + v_intermediate[27u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); + v_intermediate[35u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_base__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { - while (self->private_impl.f_mcu_zig_index <= 0u) { - wuffs_base__bulk_memset(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, 0u); - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_dc_h = self->private_impl.f_mcu_blocks_dc_hselector[self->private_impl.f_mcu_current_block]; - v_dc_ht_fast = ((uint32_t)(self->private_impl.f_huff_tables_fast[v_dc_h][(v_bits >> 56u)])); - v_dc_bl = (v_dc_ht_fast >> 8u); - if (v_n_bits >= v_dc_bl) { - v_dc_symbol = (15u & v_dc_ht_fast); - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - v_bits <<= (v_dc_bl & 63u); - v_n_bits -= v_dc_bl; - } else { - v_dc_code = ((uint32_t)((v_bits >> 55u))); - v_dc_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_dc_ht_slow = self->private_impl.f_huff_tables_slow[v_dc_h][v_dc_blm1]; - if (v_dc_code < (v_dc_ht_slow >> 8u)) { - v_dc_symbol = (15u & ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_dc_h][(255u & ((uint32_t)(v_dc_code + v_dc_ht_slow)))]))); - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - break; - } - v_dc_code = (((uint32_t)(v_dc_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_dc_blm1 = ((v_dc_blm1 + 1u) & 15u); - if (v_dc_blm1 == 0u) { - v_dc_symbol = 0u; - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - break; - } - } - } - v_dc_value = ((uint16_t)(((v_bits >> 32u) >> (32u - v_dc_symbol)))); - v_dc_value += (v_dc_extend & (((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)); - v_bits <<= v_dc_symbol; - v_n_bits -= v_dc_symbol; - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[self->private_impl.f_mcu_current_block]]; - self->private_impl.f_mcu_previous_dc_values[v_csel] += v_dc_value; - self->private_data.f_mcu_blocks[0u][0u] = self->private_impl.f_mcu_previous_dc_values[v_csel]; - self->private_impl.f_mcu_zig_index = 1u; - break; - } - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - if (v_n_bits < 16u) { - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - } - v_z = 1u; - self->private_impl.f_mcu_zig_index = 0u; - v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[self->private_impl.f_mcu_current_block]; - v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; - while (v_z < 64u) { - v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_ac_bl = (v_ac_ht_fast >> 8u); - if (v_n_bits >= v_ac_bl) { - v_ac_symbol = (255u & v_ac_ht_fast); - v_bits <<= (v_ac_bl & 63u); - v_n_bits -= v_ac_bl; - } else { - v_ac_code = ((uint32_t)((v_bits >> 55u))); - v_ac_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; - if (v_ac_code < (v_ac_ht_slow >> 8u)) { - v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); - break; - } - v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); - if (v_ac_blm1 == 0u) { - v_ac_symbol = 0u; - break; - } - } - } - v_ac_rrrr = (v_ac_symbol >> 4u); - v_z += (v_ac_rrrr + 1u); - v_ac_ssss = (v_ac_symbol & 15u); - v_ac_extend = WUFFS_JPEG__EXTEND[v_ac_ssss]; - if (v_ac_ssss > 0u) { - v_ac_value = ((uint16_t)((v_bits >> (64u - v_ac_ssss)))); - v_ac_value += (v_ac_extend & (((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)); - v_bits <<= v_ac_ssss; - v_n_bits -= v_ac_ssss; - self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[v_z]] = v_ac_value; - } else if (v_ac_rrrr < 15u) { - break; - } - } - v_mcb = self->private_impl.f_mcu_current_block; - self->private_impl.f_mcu_current_block += 1u; - if (self->private_impl.f_test_only_interrupt_decode_mcu) { - goto label__goto_done__break; - } - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_mcb]]; - v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])); - v_offset = (self->private_impl.f_mcu_blocks_offset[v_mcb] + (((uint64_t)(self->private_impl.f_mcu_blocks_mx_mul[v_mcb])) * ((uint64_t)(a_mx))) + (((uint64_t)(self->private_impl.f_mcu_blocks_my_mul[v_mcb])) * ((uint64_t)(a_my)))); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_jpeg__decoder__decode_idct(self, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); - } - } - self->private_impl.f_mcu_current_block = 0u; - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; - } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; + if (0u == (self->private_data.f_mcu_blocks[0u][12u] | + self->private_data.f_mcu_blocks[0u][20u] | + self->private_data.f_mcu_blocks[0u][28u] | + self->private_data.f_mcu_blocks[0u][36u] | + self->private_data.f_mcu_blocks[0u][44u] | + self->private_data.f_mcu_blocks[0u][52u] | + self->private_data.f_mcu_blocks[0u][60u])) { + v_intermediate[4u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][4u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][4u])))) << 2u)); + v_intermediate[12u] = v_intermediate[4u]; + v_intermediate[20u] = v_intermediate[4u]; + v_intermediate[28u] = v_intermediate[4u]; + v_intermediate[36u] = v_intermediate[4u]; + v_intermediate[44u] = v_intermediate[4u]; + v_intermediate[52u] = v_intermediate[4u]; + v_intermediate[60u] = v_intermediate[4u]; + } else { + v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][20u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][20u])))); + v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][52u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][52u])))); + v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); + v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); + v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); + v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][4u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][4u])))); + v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][36u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][36u])))); + v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); + v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); + v_cd0 = ((uint32_t)(v_ccp + v_cb2)); + v_cd1 = ((uint32_t)(v_ccm + v_cb6)); + v_cd2 = ((uint32_t)(v_ccm - v_cb6)); + v_cd3 = ((uint32_t)(v_ccp - v_cb2)); + v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][12u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][12u])))); + v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][28u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][28u])))); + v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][44u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][44u])))); + v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][60u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][60u])))); + v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); + v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); + v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); + v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); + v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); + v_ck1 = ((uint32_t)(v_bq1 * 12299u)); + v_ck3 = ((uint32_t)(v_bq3 * 25172u)); + v_ck5 = ((uint32_t)(v_bq5 * 16819u)); + v_ck7 = ((uint32_t)(v_bq7 * 2446u)); + v_ci51 *= 4294964100u; + v_ci53 *= 4294946301u; + v_ci71 *= 4294959923u; + v_ci73 *= 4294951227u; + v_cl51 = ((uint32_t)(v_ci51 + v_cj)); + v_cl73 = ((uint32_t)(v_ci73 + v_cj)); + v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); + v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); + v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); + v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); + v_intermediate[4u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); + v_intermediate[60u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); + v_intermediate[12u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); + v_intermediate[52u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); + v_intermediate[20u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); + v_intermediate[44u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); + v_intermediate[28u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); + v_intermediate[36u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; -} - -// -------- func jpeg.decoder.decode_mcu_progressive_ac_high_bits - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - const uint16_t* v_ac_huff_table_fast = NULL; - uint8_t v_ac_h = 0; - uint32_t v_ac_symbol = 0; - uint32_t v_ac_ht_fast = 0; - uint32_t v_ac_bl = 0; - uint32_t v_ac_code = 0; - uint32_t v_ac_blm1 = 0; - uint32_t v_ac_ht_slow = 0; - uint16_t v_ac_value = 0; - uint16_t v_ac_extend = 0; - uint32_t v_ac_rrrr = 0; - uint32_t v_ac_ssss = 0; - uint32_t v_z = 0; - - if (self->private_impl.f_eob_run > 0u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_eob_run -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - return 0u; + if (0u == (self->private_data.f_mcu_blocks[0u][13u] | + self->private_data.f_mcu_blocks[0u][21u] | + self->private_data.f_mcu_blocks[0u][29u] | + self->private_data.f_mcu_blocks[0u][37u] | + self->private_data.f_mcu_blocks[0u][45u] | + self->private_data.f_mcu_blocks[0u][53u] | + self->private_data.f_mcu_blocks[0u][61u])) { + v_intermediate[5u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][5u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][5u])))) << 2u)); + v_intermediate[13u] = v_intermediate[5u]; + v_intermediate[21u] = v_intermediate[5u]; + v_intermediate[29u] = v_intermediate[5u]; + v_intermediate[37u] = v_intermediate[5u]; + v_intermediate[45u] = v_intermediate[5u]; + v_intermediate[53u] = v_intermediate[5u]; + v_intermediate[61u] = v_intermediate[5u]; + } else { + v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][21u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][21u])))); + v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][53u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][53u])))); + v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); + v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); + v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); + v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][5u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][5u])))); + v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][37u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][37u])))); + v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); + v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); + v_cd0 = ((uint32_t)(v_ccp + v_cb2)); + v_cd1 = ((uint32_t)(v_ccm + v_cb6)); + v_cd2 = ((uint32_t)(v_ccm - v_cb6)); + v_cd3 = ((uint32_t)(v_ccp - v_cb2)); + v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][13u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][13u])))); + v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][29u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][29u])))); + v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][45u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][45u])))); + v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][61u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][61u])))); + v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); + v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); + v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); + v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); + v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); + v_ck1 = ((uint32_t)(v_bq1 * 12299u)); + v_ck3 = ((uint32_t)(v_bq3 * 25172u)); + v_ck5 = ((uint32_t)(v_bq5 * 16819u)); + v_ck7 = ((uint32_t)(v_bq7 * 2446u)); + v_ci51 *= 4294964100u; + v_ci53 *= 4294946301u; + v_ci71 *= 4294959923u; + v_ci73 *= 4294951227u; + v_cl51 = ((uint32_t)(v_ci51 + v_cj)); + v_cl73 = ((uint32_t)(v_ci73 + v_cj)); + v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); + v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); + v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); + v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); + v_intermediate[5u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); + v_intermediate[61u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); + v_intermediate[13u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); + v_intermediate[53u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); + v_intermediate[21u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); + v_intermediate[45u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); + v_intermediate[29u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); + v_intermediate[37u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); } - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; + if (0u == (self->private_data.f_mcu_blocks[0u][14u] | + self->private_data.f_mcu_blocks[0u][22u] | + self->private_data.f_mcu_blocks[0u][30u] | + self->private_data.f_mcu_blocks[0u][38u] | + self->private_data.f_mcu_blocks[0u][46u] | + self->private_data.f_mcu_blocks[0u][54u] | + self->private_data.f_mcu_blocks[0u][62u])) { + v_intermediate[6u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][6u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][6u])))) << 2u)); + v_intermediate[14u] = v_intermediate[6u]; + v_intermediate[22u] = v_intermediate[6u]; + v_intermediate[30u] = v_intermediate[6u]; + v_intermediate[38u] = v_intermediate[6u]; + v_intermediate[46u] = v_intermediate[6u]; + v_intermediate[54u] = v_intermediate[6u]; + v_intermediate[62u] = v_intermediate[6u]; + } else { + v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][22u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][22u])))); + v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][54u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][54u])))); + v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); + v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); + v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); + v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][6u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][6u])))); + v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][38u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][38u])))); + v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); + v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); + v_cd0 = ((uint32_t)(v_ccp + v_cb2)); + v_cd1 = ((uint32_t)(v_ccm + v_cb6)); + v_cd2 = ((uint32_t)(v_ccm - v_cb6)); + v_cd3 = ((uint32_t)(v_ccp - v_cb2)); + v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][14u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][14u])))); + v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][30u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][30u])))); + v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][46u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][46u])))); + v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][62u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][62u])))); + v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); + v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); + v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); + v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); + v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); + v_ck1 = ((uint32_t)(v_bq1 * 12299u)); + v_ck3 = ((uint32_t)(v_bq3 * 25172u)); + v_ck5 = ((uint32_t)(v_bq5 * 16819u)); + v_ck7 = ((uint32_t)(v_bq7 * 2446u)); + v_ci51 *= 4294964100u; + v_ci53 *= 4294946301u; + v_ci71 *= 4294959923u; + v_ci73 *= 4294951227u; + v_cl51 = ((uint32_t)(v_ci51 + v_cj)); + v_cl73 = ((uint32_t)(v_ci73 + v_cj)); + v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); + v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); + v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); + v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); + v_intermediate[6u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); + v_intermediate[62u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); + v_intermediate[14u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); + v_intermediate[54u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); + v_intermediate[22u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); + v_intermediate[46u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); + v_intermediate[30u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); + v_intermediate[38u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_base__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - do { - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - if (v_n_bits < 16u) { - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - } - v_z = self->private_impl.f_mcu_zig_index; - self->private_impl.f_mcu_zig_index = 0u; - v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[0u]; - v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; - while (v_z <= ((uint32_t)(self->private_impl.f_scan_se))) { - v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_ac_bl = (v_ac_ht_fast >> 8u); - if (v_n_bits >= v_ac_bl) { - v_ac_symbol = (255u & v_ac_ht_fast); - v_bits <<= (v_ac_bl & 63u); - v_n_bits -= v_ac_bl; - } else { - v_ac_code = ((uint32_t)((v_bits >> 55u))); - v_ac_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; - if (v_ac_code < (v_ac_ht_slow >> 8u)) { - v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); - break; - } - v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); - if (v_ac_blm1 == 0u) { - v_ac_symbol = 0u; - break; - } - } - } - v_ac_rrrr = (v_ac_symbol >> 4u); - v_z += (v_ac_rrrr + 1u); - v_ac_ssss = (v_ac_symbol & 15u); - v_ac_extend = WUFFS_JPEG__EXTEND[v_ac_ssss]; - if (v_ac_ssss > 0u) { - v_ac_value = ((uint16_t)((v_bits >> (64u - v_ac_ssss)))); - v_ac_value += (v_ac_extend & (((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)); - v_bits <<= v_ac_ssss; - v_n_bits -= v_ac_ssss; - self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[v_z]] = ((uint16_t)(((uint16_t)(v_ac_value << self->private_impl.f_scan_al)))); - } else if (v_ac_rrrr < 15u) { - self->private_impl.f_eob_run = ((uint16_t)(((((uint16_t)(1u)) << v_ac_rrrr) - 1u))); - if (v_ac_rrrr > 0u) { - self->private_impl.f_eob_run += ((uint16_t)((v_bits >> (64u - v_ac_rrrr)))); - v_bits <<= v_ac_rrrr; - v_n_bits -= v_ac_rrrr; - } - break; - } - } - } while (0); - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; - } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; + if (0u == (self->private_data.f_mcu_blocks[0u][15u] | + self->private_data.f_mcu_blocks[0u][23u] | + self->private_data.f_mcu_blocks[0u][31u] | + self->private_data.f_mcu_blocks[0u][39u] | + self->private_data.f_mcu_blocks[0u][47u] | + self->private_data.f_mcu_blocks[0u][55u] | + self->private_data.f_mcu_blocks[0u][63u])) { + v_intermediate[7u] = ((uint32_t)(((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][7u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][7u])))) << 2u)); + v_intermediate[15u] = v_intermediate[7u]; + v_intermediate[23u] = v_intermediate[7u]; + v_intermediate[31u] = v_intermediate[7u]; + v_intermediate[39u] = v_intermediate[7u]; + v_intermediate[47u] = v_intermediate[7u]; + v_intermediate[55u] = v_intermediate[7u]; + v_intermediate[63u] = v_intermediate[7u]; + } else { + v_bq2 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][23u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][23u])))); + v_bq6 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][55u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][55u])))); + v_ca = ((uint32_t)(((uint32_t)(v_bq2 + v_bq6)) * 4433u)); + v_cb2 = ((uint32_t)(v_ca + ((uint32_t)(v_bq2 * 6270u)))); + v_cb6 = ((uint32_t)(v_ca - ((uint32_t)(v_bq6 * 15137u)))); + v_bq0 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][7u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][7u])))); + v_bq4 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][39u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][39u])))); + v_ccp = ((uint32_t)(((uint32_t)(v_bq0 + v_bq4)) << 13u)); + v_ccm = ((uint32_t)(((uint32_t)(v_bq0 - v_bq4)) << 13u)); + v_cd0 = ((uint32_t)(v_ccp + v_cb2)); + v_cd1 = ((uint32_t)(v_ccm + v_cb6)); + v_cd2 = ((uint32_t)(v_ccm - v_cb6)); + v_cd3 = ((uint32_t)(v_ccp - v_cb2)); + v_bq1 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][15u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][15u])))); + v_bq3 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][31u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][31u])))); + v_bq5 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][47u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][47u])))); + v_bq7 = ((uint32_t)(wuffs_base__utility__sign_extend_convert_u16_u32(self->private_data.f_mcu_blocks[0u][63u]) * ((uint32_t)(self->private_impl.f_quant_tables[a_q][63u])))); + v_ci51 = ((uint32_t)(v_bq5 + v_bq1)); + v_ci53 = ((uint32_t)(v_bq5 + v_bq3)); + v_ci71 = ((uint32_t)(v_bq7 + v_bq1)); + v_ci73 = ((uint32_t)(v_bq7 + v_bq3)); + v_cj = ((uint32_t)(((uint32_t)(v_ci73 + v_ci51)) * 9633u)); + v_ck1 = ((uint32_t)(v_bq1 * 12299u)); + v_ck3 = ((uint32_t)(v_bq3 * 25172u)); + v_ck5 = ((uint32_t)(v_bq5 * 16819u)); + v_ck7 = ((uint32_t)(v_bq7 * 2446u)); + v_ci51 *= 4294964100u; + v_ci53 *= 4294946301u; + v_ci71 *= 4294959923u; + v_ci73 *= 4294951227u; + v_cl51 = ((uint32_t)(v_ci51 + v_cj)); + v_cl73 = ((uint32_t)(v_ci73 + v_cj)); + v_ck1 += ((uint32_t)(v_ci71 + v_cl51)); + v_ck3 += ((uint32_t)(v_ci53 + v_cl73)); + v_ck5 += ((uint32_t)(v_ci53 + v_cl51)); + v_ck7 += ((uint32_t)(v_ci71 + v_cl73)); + v_intermediate[7u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 + v_ck1)) + 1024u)), 11u); + v_intermediate[63u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd0 - v_ck1)) + 1024u)), 11u); + v_intermediate[15u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 + v_ck3)) + 1024u)), 11u); + v_intermediate[55u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd1 - v_ck3)) + 1024u)), 11u); + v_intermediate[23u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 + v_ck5)) + 1024u)), 11u); + v_intermediate[47u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd2 - v_ck5)) + 1024u)), 11u); + v_intermediate[31u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 + v_ck7)) + 1024u)), 11u); + v_intermediate[39u] = wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(((uint32_t)(v_cd3 - v_ck7)) + 1024u)), 11u); } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; -} - -// -------- func jpeg.decoder.decode_mcu_progressive_ac_low_bit - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint16_t v_one_lshift_scan_al = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - const uint16_t* v_ac_huff_table_fast = NULL; - uint8_t v_ac_h = 0; - uint32_t v_ac_symbol = 0; - uint32_t v_ac_ht_fast = 0; - uint32_t v_ac_bl = 0; - uint32_t v_ac_code = 0; - uint32_t v_ac_blm1 = 0; - uint32_t v_ac_ht_slow = 0; - uint16_t v_ac_value = 0; - uint32_t v_ac_rrrr = 0; - uint32_t v_ac_ssss = 0; - uint8_t v_unzig = 0; - bool v_bit = false; - - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - v_one_lshift_scan_al = (((uint16_t)(1u)) << self->private_impl.f_scan_al); - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; - } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_base__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - do { - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - while (true) { - if (self->private_impl.f_eob_run > 0u) { - break; - } - v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[0u]; - v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; - while (true) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); - v_ac_bl = (v_ac_ht_fast >> 8u); - if (v_n_bits >= v_ac_bl) { - v_ac_symbol = (255u & v_ac_ht_fast); - v_bits <<= (v_ac_bl & 63u); - v_n_bits -= v_ac_bl; - } else { - v_ac_code = ((uint32_t)((v_bits >> 55u))); - v_ac_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; - if (v_ac_code < (v_ac_ht_slow >> 8u)) { - v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); - break; - } - v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); - if (v_ac_blm1 == 0u) { - v_ac_symbol = 0u; - break; - } - } - } - v_ac_rrrr = (v_ac_symbol >> 4u); - v_ac_ssss = (v_ac_symbol & 15u); - v_ac_value = 0u; - if (v_ac_ssss > 0u) { - v_ac_value = (((uint16_t)(1u)) << self->private_impl.f_scan_al); - if ((v_bits >> 63u) == 0u) { - v_ac_value = ((uint16_t)(((uint16_t)(65535u)) << self->private_impl.f_scan_al)); - } - v_bits <<= 1u; - v_n_bits -= 1u; - } else if (v_ac_rrrr < 15u) { - self->private_impl.f_eob_run = (((uint16_t)(1u)) << v_ac_rrrr); - if (v_ac_rrrr > 0u) { - self->private_impl.f_eob_run += ((uint16_t)((v_bits >> (64u - v_ac_rrrr)))); - v_bits <<= v_ac_rrrr; - v_n_bits -= v_ac_rrrr; - } - goto label__goto_do_eob__break; - } - while (true) { - v_unzig = WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]; - if (self->private_data.f_mcu_blocks[0u][v_unzig] != 0u) { - if (v_n_bits == 0u) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - } - v_bit = ((v_bits >> 63u) > 0u); - v_bits <<= 1u; - v_n_bits -= 1u; - if (v_bit) { - if (self->private_data.f_mcu_blocks[0u][v_unzig] < 32768u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_data.f_mcu_blocks[0u][v_unzig] += v_one_lshift_scan_al; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_data.f_mcu_blocks[0u][v_unzig] -= v_one_lshift_scan_al; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } - } - } else if (v_ac_rrrr <= 0u) { - break; - } else { - v_ac_rrrr -= 1u; - } - if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { - break; - } - self->private_impl.f_mcu_zig_index += 1u; - } - if (v_ac_value != 0u) { - self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]] = v_ac_value; - } - if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { - break; - } - self->private_impl.f_mcu_zig_index += 1u; - } - goto label__block__break; - } - label__goto_do_eob__break:; - if (self->private_impl.f_eob_run <= 0u) { - v_ret = 2u; - goto label__goto_done__break; - } - while (true) { - v_unzig = WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]; - if (self->private_data.f_mcu_blocks[0u][v_unzig] != 0u) { - if (v_n_bits == 0u) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - } - v_bit = ((v_bits >> 63u) > 0u); - v_bits <<= 1u; - v_n_bits -= 1u; - if (v_bit) { - if (self->private_data.f_mcu_blocks[0u][v_unzig] < 32768u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_data.f_mcu_blocks[0u][v_unzig] += v_one_lshift_scan_al; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_data.f_mcu_blocks[0u][v_unzig] -= v_one_lshift_scan_al; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } - } - } - if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { - break; - } - self->private_impl.f_mcu_zig_index += 1u; - } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_eob_run -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } while (0); - label__block__break:; - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; + if (0u == (v_intermediate[1u] | + v_intermediate[2u] | + v_intermediate[3u] | + v_intermediate[4u] | + v_intermediate[5u] | + v_intermediate[6u] | + v_intermediate[7u])) { + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; - } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; -} - -// -------- func jpeg.decoder.decode_mcu_progressive_dc_high_bits - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint8_t v_csel = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - uint8_t v_dc_h = 0; - uint32_t v_dc_symbol = 0; - uint32_t v_dc_ht_fast = 0; - uint32_t v_dc_bl = 0; - uint32_t v_dc_code = 0; - uint32_t v_dc_blm1 = 0; - uint32_t v_dc_ht_slow = 0; - uint16_t v_dc_value = 0; - uint16_t v_dc_extend = 0; - - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; - } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_base__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - do { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_dc_h = self->private_impl.f_mcu_blocks_dc_hselector[self->private_impl.f_mcu_current_block]; - v_dc_ht_fast = ((uint32_t)(self->private_impl.f_huff_tables_fast[v_dc_h][(v_bits >> 56u)])); - v_dc_bl = (v_dc_ht_fast >> 8u); - if (v_n_bits >= v_dc_bl) { - v_dc_symbol = (15u & v_dc_ht_fast); - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - v_bits <<= (v_dc_bl & 63u); - v_n_bits -= v_dc_bl; - } else { - v_dc_code = ((uint32_t)((v_bits >> 55u))); - v_dc_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_dc_ht_slow = self->private_impl.f_huff_tables_slow[v_dc_h][v_dc_blm1]; - if (v_dc_code < (v_dc_ht_slow >> 8u)) { - v_dc_symbol = (15u & ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_dc_h][(255u & ((uint32_t)(v_dc_code + v_dc_ht_slow)))]))); - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - break; - } - v_dc_code = (((uint32_t)(v_dc_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_dc_blm1 = ((v_dc_blm1 + 1u) & 15u); - if (v_dc_blm1 == 0u) { - v_dc_symbol = 0u; - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - break; - } - } - } - v_dc_value = ((uint16_t)(((v_bits >> 32u) >> (32u - v_dc_symbol)))); - v_dc_value += (v_dc_extend & (((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)); - v_bits <<= v_dc_symbol; - v_n_bits -= v_dc_symbol; - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[self->private_impl.f_mcu_current_block]]; - self->private_impl.f_mcu_previous_dc_values[v_csel] += v_dc_value; - self->private_data.f_mcu_blocks[self->private_impl.f_mcu_current_block][0u] = ((uint16_t)(self->private_impl.f_mcu_previous_dc_values[v_csel] << self->private_impl.f_scan_al)); - } while (0); - self->private_impl.f_mcu_current_block += 1u; - } - self->private_impl.f_mcu_current_block = 0u; - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[0u] + 16u)) >> 5u) & 1023u)]; + a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + } else { + v_in2 = v_intermediate[2u]; + v_in6 = v_intermediate[6u]; + v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); + v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); + v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); + v_in0 = v_intermediate[0u]; + v_in4 = v_intermediate[4u]; + v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); + v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); + v_rd0 = ((uint32_t)(v_rcp + v_rb2)); + v_rd1 = ((uint32_t)(v_rcm + v_rb6)); + v_rd2 = ((uint32_t)(v_rcm - v_rb6)); + v_rd3 = ((uint32_t)(v_rcp - v_rb2)); + v_in1 = v_intermediate[1u]; + v_in3 = v_intermediate[3u]; + v_in5 = v_intermediate[5u]; + v_in7 = v_intermediate[7u]; + v_ri51 = ((uint32_t)(v_in5 + v_in1)); + v_ri53 = ((uint32_t)(v_in5 + v_in3)); + v_ri71 = ((uint32_t)(v_in7 + v_in1)); + v_ri73 = ((uint32_t)(v_in7 + v_in3)); + v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); + v_rk1 = ((uint32_t)(v_in1 * 12299u)); + v_rk3 = ((uint32_t)(v_in3 * 25172u)); + v_rk5 = ((uint32_t)(v_in5 * 16819u)); + v_rk7 = ((uint32_t)(v_in7 * 2446u)); + v_ri51 *= 4294964100u; + v_ri53 *= 4294946301u; + v_ri71 *= 4294959923u; + v_ri73 *= 4294951227u; + v_rl51 = ((uint32_t)(v_ri51 + v_rj)); + v_rl73 = ((uint32_t)(v_ri73 + v_rj)); + v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); + v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); + v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); + v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; - } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; -} - -// -------- func jpeg.decoder.decode_mcu_progressive_dc_low_bit - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint16_t v_one_lshift_scan_al = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - v_one_lshift_scan_al = (((uint16_t)(1u)) << self->private_impl.f_scan_al); - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_base__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - do { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - if ((v_bits >> 63u) != 0u) { - self->private_data.f_mcu_blocks[self->private_impl.f_mcu_current_block][0u] |= v_one_lshift_scan_al; - } - v_bits <<= 1u; - v_n_bits -= 1u; - } while (0); - self->private_impl.f_mcu_current_block += 1u; - } - self->private_impl.f_mcu_current_block = 0u; - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; + if (0u == (v_intermediate[9u] | + v_intermediate[10u] | + v_intermediate[11u] | + v_intermediate[12u] | + v_intermediate[13u] | + v_intermediate[14u] | + v_intermediate[15u])) { + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; - } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; -} - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JPEG) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) - -// ---------------- Status Codes Implementations - -const char wuffs_json__error__bad_c0_control_code[] = "#json: bad C0 control code"; -const char wuffs_json__error__bad_utf_8[] = "#json: bad UTF-8"; -const char wuffs_json__error__bad_backslash_escape[] = "#json: bad backslash-escape"; -const char wuffs_json__error__bad_input[] = "#json: bad input"; -const char wuffs_json__error__bad_new_line_in_a_string[] = "#json: bad new-line in a string"; -const char wuffs_json__error__bad_quirk_combination[] = "#json: bad quirk combination"; -const char wuffs_json__error__unsupported_number_length[] = "#json: unsupported number length"; -const char wuffs_json__error__unsupported_recursion_depth[] = "#json: unsupported recursion depth"; -const char wuffs_json__error__internal_error_inconsistent_i_o[] = "#json: internal error: inconsistent I/O"; - -// ---------------- Private Consts - -#define WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL 99 - -static const uint8_t -WUFFS_JSON__LUT_BACKSLASHES[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 3, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 162, 0, 0, 0, 0, 5, - 0, 0, 0, 0, 0, 0, 0, 175, - 7, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 4, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 220, 0, 0, 0, - 0, 1, 136, 0, 0, 2, 140, 0, - 0, 0, 0, 0, 0, 0, 138, 0, - 0, 0, 141, 0, 137, 0, 6, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, -}; - -static const uint8_t -WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 1, 3, 4, 5, 6, 7, 10, -}; - -static const uint8_t -WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 7, 27, 10, 63, 39, 11, 0, -}; - -static const uint8_t -WUFFS_JSON__LUT_CHARS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 128, 129, 130, 131, 132, 133, 134, 135, - 136, 137, 138, 139, 140, 141, 142, 143, - 144, 145, 146, 147, 148, 149, 150, 151, - 152, 153, 154, 155, 156, 157, 158, 159, - 0, 0, 1, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 2, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 32, 32, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3, 3, 3, 3, 3, - 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, - 5, 5, 5, 5, 5, 32, 32, 32, - 32, 32, 32, 32, 32, 32, 32, 32, -}; - -#define WUFFS_JSON__CLASS_WHITESPACE 0 - -#define WUFFS_JSON__CLASS_STRING 1 - -#define WUFFS_JSON__CLASS_COMMA 2 - -#define WUFFS_JSON__CLASS_COLON 3 - -#define WUFFS_JSON__CLASS_NUMBER 4 - -#define WUFFS_JSON__CLASS_OPEN_CURLY_BRACE 5 - -#define WUFFS_JSON__CLASS_CLOSE_CURLY_BRACE 6 - -#define WUFFS_JSON__CLASS_OPEN_SQUARE_BRACKET 7 - -#define WUFFS_JSON__CLASS_CLOSE_SQUARE_BRACKET 8 - -#define WUFFS_JSON__CLASS_FALSE 9 - -#define WUFFS_JSON__CLASS_TRUE 10 - -#define WUFFS_JSON__CLASS_NULL_NAN_INF 11 - -#define WUFFS_JSON__CLASS_COMMENT 12 - -#define WUFFS_JSON__EXPECT_VALUE 7858 - -#define WUFFS_JSON__EXPECT_NON_STRING_VALUE 7856 - -#define WUFFS_JSON__EXPECT_STRING 4098 - -#define WUFFS_JSON__EXPECT_COMMA 4100 - -#define WUFFS_JSON__EXPECT_COLON 4104 - -#define WUFFS_JSON__EXPECT_NUMBER 4112 - -#define WUFFS_JSON__EXPECT_CLOSE_CURLY_BRACE 4160 - -#define WUFFS_JSON__EXPECT_CLOSE_SQUARE_BRACKET 4352 - -static const uint8_t -WUFFS_JSON__LUT_CLASSES[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 0, 0, 15, 15, 0, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 0, 15, 1, 15, 15, 15, 15, 15, - 15, 15, 15, 11, 2, 4, 15, 12, - 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 3, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 11, 15, 15, 15, 15, 11, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 7, 15, 8, 15, 15, - 15, 15, 15, 15, 15, 15, 9, 15, - 15, 11, 15, 15, 15, 15, 11, 15, - 15, 15, 15, 15, 10, 15, 15, 15, - 15, 15, 15, 5, 15, 6, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, -}; - -static const uint8_t -WUFFS_JSON__LUT_DECIMAL_DIGITS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 128, 129, 130, 131, 132, 133, 134, 135, - 136, 137, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, -}; - -static const uint8_t -WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 128, 129, 130, 131, 132, 133, 134, 135, - 136, 137, 0, 0, 0, 0, 0, 0, - 0, 138, 139, 140, 141, 142, 143, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 138, 139, 140, 141, 142, 143, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, -}; - -#define WUFFS_JSON__QUIRKS_BASE 1225364480 - -#define WUFFS_JSON__QUIRKS_COUNT 21 - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_json__decoder__decode_number( - wuffs_json__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_json__decoder__decode_digits( - wuffs_json__decoder* self, - wuffs_base__io_buffer* a_src, - uint32_t a_n); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_leading( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_comment( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_inf_nan( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_trailer( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -// ---------------- VTables - -const wuffs_base__token_decoder__func_ptrs -wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__token_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_json__decoder__decode_tokens), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_json__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_json__decoder__history_retain_length), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_json__decoder__set_quirk), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_json__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_json__decoder__initialize( - wuffs_json__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[8u] + 16u)) >> 5u) & 1023u)]; + a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + } else { + v_in2 = v_intermediate[10u]; + v_in6 = v_intermediate[14u]; + v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); + v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); + v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); + v_in0 = v_intermediate[8u]; + v_in4 = v_intermediate[12u]; + v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); + v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); + v_rd0 = ((uint32_t)(v_rcp + v_rb2)); + v_rd1 = ((uint32_t)(v_rcm + v_rb6)); + v_rd2 = ((uint32_t)(v_rcm - v_rb6)); + v_rd3 = ((uint32_t)(v_rcp - v_rb2)); + v_in1 = v_intermediate[9u]; + v_in3 = v_intermediate[11u]; + v_in5 = v_intermediate[13u]; + v_in7 = v_intermediate[15u]; + v_ri51 = ((uint32_t)(v_in5 + v_in1)); + v_ri53 = ((uint32_t)(v_in5 + v_in3)); + v_ri71 = ((uint32_t)(v_in7 + v_in1)); + v_ri73 = ((uint32_t)(v_in7 + v_in3)); + v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); + v_rk1 = ((uint32_t)(v_in1 * 12299u)); + v_rk3 = ((uint32_t)(v_in3 * 25172u)); + v_rk5 = ((uint32_t)(v_in5 * 16819u)); + v_rk7 = ((uint32_t)(v_in7 * 2446u)); + v_ri51 *= 4294964100u; + v_ri53 *= 4294946301u; + v_ri71 *= 4294959923u; + v_ri73 *= 4294951227u; + v_rl51 = ((uint32_t)(v_ri51 + v_rj)); + v_rl73 = ((uint32_t)(v_ri73 + v_rj)); + v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); + v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); + v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); + v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); } - - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + if (0u == (v_intermediate[17u] | + v_intermediate[18u] | + v_intermediate[19u] | + v_intermediate[20u] | + v_intermediate[21u] | + v_intermediate[22u] | + v_intermediate[23u])) { + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[16u] + 16u)) >> 5u) & 1023u)]; + a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + v_in2 = v_intermediate[18u]; + v_in6 = v_intermediate[22u]; + v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); + v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); + v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); + v_in0 = v_intermediate[16u]; + v_in4 = v_intermediate[20u]; + v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); + v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); + v_rd0 = ((uint32_t)(v_rcp + v_rb2)); + v_rd1 = ((uint32_t)(v_rcm + v_rb6)); + v_rd2 = ((uint32_t)(v_rcm - v_rb6)); + v_rd3 = ((uint32_t)(v_rcp - v_rb2)); + v_in1 = v_intermediate[17u]; + v_in3 = v_intermediate[19u]; + v_in5 = v_intermediate[21u]; + v_in7 = v_intermediate[23u]; + v_ri51 = ((uint32_t)(v_in5 + v_in1)); + v_ri53 = ((uint32_t)(v_in5 + v_in3)); + v_ri71 = ((uint32_t)(v_in7 + v_in1)); + v_ri73 = ((uint32_t)(v_in7 + v_in3)); + v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); + v_rk1 = ((uint32_t)(v_in1 * 12299u)); + v_rk3 = ((uint32_t)(v_in3 * 25172u)); + v_rk5 = ((uint32_t)(v_in5 * 16819u)); + v_rk7 = ((uint32_t)(v_in7 * 2446u)); + v_ri51 *= 4294964100u; + v_ri53 *= 4294946301u; + v_ri71 *= 4294959923u; + v_ri73 *= 4294951227u; + v_rl51 = ((uint32_t)(v_ri51 + v_rj)); + v_rl73 = ((uint32_t)(v_ri73 + v_rj)); + v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); + v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); + v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); + v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__token_decoder.vtable_name = - wuffs_base__token_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__token_decoder.function_pointers = - (const void*)(&wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder); - return wuffs_base__make_status(NULL); -} - -wuffs_json__decoder* -wuffs_json__decoder__alloc(void) { - wuffs_json__decoder* x = - (wuffs_json__decoder*)(calloc(sizeof(wuffs_json__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_json__decoder__initialize( - x, sizeof(wuffs_json__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_json__decoder(void) { - return sizeof(wuffs_json__decoder); -} - -// ---------------- Function Implementations - -// -------- func json.decoder.get_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_json__decoder__get_quirk( - const wuffs_json__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - uint32_t v_key = 0; - - if (a_key >= 1225364480u) { - v_key = (a_key - 1225364480u); - if (v_key < 21u) { - if (self->private_impl.f_quirks[v_key]) { - return 1u; - } + if (0u == (v_intermediate[25u] | + v_intermediate[26u] | + v_intermediate[27u] | + v_intermediate[28u] | + v_intermediate[29u] | + v_intermediate[30u] | + v_intermediate[31u])) { + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); } - } - return 0u; -} - -// -------- func json.decoder.set_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_json__decoder__set_quirk( - wuffs_json__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - if (a_key >= 1225364480u) { - a_key -= 1225364480u; - if (a_key < 21u) { - self->private_impl.f_quirks[a_key] = (a_value > 0u); - return wuffs_base__make_status(NULL); + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[24u] + 16u)) >> 5u) & 1023u)]; + a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + } else { + v_in2 = v_intermediate[26u]; + v_in6 = v_intermediate[30u]; + v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); + v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); + v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); + v_in0 = v_intermediate[24u]; + v_in4 = v_intermediate[28u]; + v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); + v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); + v_rd0 = ((uint32_t)(v_rcp + v_rb2)); + v_rd1 = ((uint32_t)(v_rcm + v_rb6)); + v_rd2 = ((uint32_t)(v_rcm - v_rb6)); + v_rd3 = ((uint32_t)(v_rcp - v_rb2)); + v_in1 = v_intermediate[25u]; + v_in3 = v_intermediate[27u]; + v_in5 = v_intermediate[29u]; + v_in7 = v_intermediate[31u]; + v_ri51 = ((uint32_t)(v_in5 + v_in1)); + v_ri53 = ((uint32_t)(v_in5 + v_in3)); + v_ri71 = ((uint32_t)(v_in7 + v_in1)); + v_ri73 = ((uint32_t)(v_in7 + v_in3)); + v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); + v_rk1 = ((uint32_t)(v_in1 * 12299u)); + v_rk3 = ((uint32_t)(v_in3 * 25172u)); + v_rk5 = ((uint32_t)(v_in5 * 16819u)); + v_rk7 = ((uint32_t)(v_in7 * 2446u)); + v_ri51 *= 4294964100u; + v_ri53 *= 4294946301u; + v_ri71 *= 4294959923u; + v_ri73 *= 4294951227u; + v_rl51 = ((uint32_t)(v_ri51 + v_rj)); + v_rl73 = ((uint32_t)(v_ri73 + v_rj)); + v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); + v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); + v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); + v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); -} - -// -------- func json.decoder.history_retain_length - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_json__decoder__history_retain_length( - const wuffs_json__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if (0u == (v_intermediate[33u] | + v_intermediate[34u] | + v_intermediate[35u] | + v_intermediate[36u] | + v_intermediate[37u] | + v_intermediate[38u] | + v_intermediate[39u])) { + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[32u] + 16u)) >> 5u) & 1023u)]; + a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + } else { + v_in2 = v_intermediate[34u]; + v_in6 = v_intermediate[38u]; + v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); + v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); + v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); + v_in0 = v_intermediate[32u]; + v_in4 = v_intermediate[36u]; + v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); + v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); + v_rd0 = ((uint32_t)(v_rcp + v_rb2)); + v_rd1 = ((uint32_t)(v_rcm + v_rb6)); + v_rd2 = ((uint32_t)(v_rcm - v_rb6)); + v_rd3 = ((uint32_t)(v_rcp - v_rb2)); + v_in1 = v_intermediate[33u]; + v_in3 = v_intermediate[35u]; + v_in5 = v_intermediate[37u]; + v_in7 = v_intermediate[39u]; + v_ri51 = ((uint32_t)(v_in5 + v_in1)); + v_ri53 = ((uint32_t)(v_in5 + v_in3)); + v_ri71 = ((uint32_t)(v_in7 + v_in1)); + v_ri73 = ((uint32_t)(v_in7 + v_in3)); + v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); + v_rk1 = ((uint32_t)(v_in1 * 12299u)); + v_rk3 = ((uint32_t)(v_in3 * 25172u)); + v_rk5 = ((uint32_t)(v_in5 * 16819u)); + v_rk7 = ((uint32_t)(v_in7 * 2446u)); + v_ri51 *= 4294964100u; + v_ri53 *= 4294946301u; + v_ri71 *= 4294959923u; + v_ri73 *= 4294951227u; + v_rl51 = ((uint32_t)(v_ri51 + v_rj)); + v_rl73 = ((uint32_t)(v_ri73 + v_rj)); + v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); + v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); + v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); + v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); } - - return 0u; -} - -// -------- func json.decoder.workbuf_len - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_json__decoder__workbuf_len( - const wuffs_json__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); + if (0u == (v_intermediate[41u] | + v_intermediate[42u] | + v_intermediate[43u] | + v_intermediate[44u] | + v_intermediate[45u] | + v_intermediate[46u] | + v_intermediate[47u])) { + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[40u] + 16u)) >> 5u) & 1023u)]; + a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + } else { + v_in2 = v_intermediate[42u]; + v_in6 = v_intermediate[46u]; + v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); + v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); + v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); + v_in0 = v_intermediate[40u]; + v_in4 = v_intermediate[44u]; + v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); + v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); + v_rd0 = ((uint32_t)(v_rcp + v_rb2)); + v_rd1 = ((uint32_t)(v_rcm + v_rb6)); + v_rd2 = ((uint32_t)(v_rcm - v_rb6)); + v_rd3 = ((uint32_t)(v_rcp - v_rb2)); + v_in1 = v_intermediate[41u]; + v_in3 = v_intermediate[43u]; + v_in5 = v_intermediate[45u]; + v_in7 = v_intermediate[47u]; + v_ri51 = ((uint32_t)(v_in5 + v_in1)); + v_ri53 = ((uint32_t)(v_in5 + v_in3)); + v_ri71 = ((uint32_t)(v_in7 + v_in1)); + v_ri73 = ((uint32_t)(v_in7 + v_in3)); + v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); + v_rk1 = ((uint32_t)(v_in1 * 12299u)); + v_rk3 = ((uint32_t)(v_in3 * 25172u)); + v_rk5 = ((uint32_t)(v_in5 * 16819u)); + v_rk7 = ((uint32_t)(v_in7 * 2446u)); + v_ri51 *= 4294964100u; + v_ri53 *= 4294946301u; + v_ri71 *= 4294959923u; + v_ri73 *= 4294951227u; + v_rl51 = ((uint32_t)(v_ri51 + v_rj)); + v_rl73 = ((uint32_t)(v_ri73 + v_rj)); + v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); + v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); + v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); + v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + if (0u == (v_intermediate[49u] | + v_intermediate[50u] | + v_intermediate[51u] | + v_intermediate[52u] | + v_intermediate[53u] | + v_intermediate[54u] | + v_intermediate[55u])) { + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[48u] + 16u)) >> 5u) & 1023u)]; + a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + } else { + v_in2 = v_intermediate[50u]; + v_in6 = v_intermediate[54u]; + v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); + v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); + v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); + v_in0 = v_intermediate[48u]; + v_in4 = v_intermediate[52u]; + v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); + v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); + v_rd0 = ((uint32_t)(v_rcp + v_rb2)); + v_rd1 = ((uint32_t)(v_rcm + v_rb6)); + v_rd2 = ((uint32_t)(v_rcm - v_rb6)); + v_rd3 = ((uint32_t)(v_rcp - v_rb2)); + v_in1 = v_intermediate[49u]; + v_in3 = v_intermediate[51u]; + v_in5 = v_intermediate[53u]; + v_in7 = v_intermediate[55u]; + v_ri51 = ((uint32_t)(v_in5 + v_in1)); + v_ri53 = ((uint32_t)(v_in5 + v_in3)); + v_ri71 = ((uint32_t)(v_in7 + v_in1)); + v_ri73 = ((uint32_t)(v_in7 + v_in3)); + v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); + v_rk1 = ((uint32_t)(v_in1 * 12299u)); + v_rk3 = ((uint32_t)(v_in3 * 25172u)); + v_rk5 = ((uint32_t)(v_in5 * 16819u)); + v_rk7 = ((uint32_t)(v_in7 * 2446u)); + v_ri51 *= 4294964100u; + v_ri53 *= 4294946301u; + v_ri71 *= 4294959923u; + v_ri73 *= 4294951227u; + v_rl51 = ((uint32_t)(v_ri51 + v_rj)); + v_rl73 = ((uint32_t)(v_ri73 + v_rj)); + v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); + v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); + v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); + v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); } - - return wuffs_base__utility__empty_range_ii_u64(); + if (0u == (v_intermediate[57u] | + v_intermediate[58u] | + v_intermediate[59u] | + v_intermediate[60u] | + v_intermediate[61u] | + v_intermediate[62u] | + v_intermediate[63u])) { + if (8u > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(v_intermediate[56u] + 16u)) >> 5u) & 1023u)]; + a_dst_buffer.ptr[1u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[2u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[3u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[4u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[5u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[6u] = a_dst_buffer.ptr[0u]; + a_dst_buffer.ptr[7u] = a_dst_buffer.ptr[0u]; + } else { + v_in2 = v_intermediate[58u]; + v_in6 = v_intermediate[62u]; + v_ra = ((uint32_t)(((uint32_t)(v_in2 + v_in6)) * 4433u)); + v_rb2 = ((uint32_t)(v_ra + ((uint32_t)(v_in2 * 6270u)))); + v_rb6 = ((uint32_t)(v_ra - ((uint32_t)(v_in6 * 15137u)))); + v_in0 = v_intermediate[56u]; + v_in4 = v_intermediate[60u]; + v_rcp = ((uint32_t)(((uint32_t)(v_in0 + v_in4)) << 13u)); + v_rcm = ((uint32_t)(((uint32_t)(v_in0 - v_in4)) << 13u)); + v_rd0 = ((uint32_t)(v_rcp + v_rb2)); + v_rd1 = ((uint32_t)(v_rcm + v_rb6)); + v_rd2 = ((uint32_t)(v_rcm - v_rb6)); + v_rd3 = ((uint32_t)(v_rcp - v_rb2)); + v_in1 = v_intermediate[57u]; + v_in3 = v_intermediate[59u]; + v_in5 = v_intermediate[61u]; + v_in7 = v_intermediate[63u]; + v_ri51 = ((uint32_t)(v_in5 + v_in1)); + v_ri53 = ((uint32_t)(v_in5 + v_in3)); + v_ri71 = ((uint32_t)(v_in7 + v_in1)); + v_ri73 = ((uint32_t)(v_in7 + v_in3)); + v_rj = ((uint32_t)(((uint32_t)(v_ri73 + v_ri51)) * 9633u)); + v_rk1 = ((uint32_t)(v_in1 * 12299u)); + v_rk3 = ((uint32_t)(v_in3 * 25172u)); + v_rk5 = ((uint32_t)(v_in5 * 16819u)); + v_rk7 = ((uint32_t)(v_in7 * 2446u)); + v_ri51 *= 4294964100u; + v_ri53 *= 4294946301u; + v_ri71 *= 4294959923u; + v_ri73 *= 4294951227u; + v_rl51 = ((uint32_t)(v_ri51 + v_rj)); + v_rl73 = ((uint32_t)(v_ri73 + v_rj)); + v_rk1 += ((uint32_t)(v_ri71 + v_rl51)); + v_rk3 += ((uint32_t)(v_ri53 + v_rl73)); + v_rk5 += ((uint32_t)(v_ri53 + v_rl51)); + v_rk7 += ((uint32_t)(v_ri71 + v_rl73)); + if (8u > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + a_dst_buffer.ptr[0u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 + v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[7u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd0 - v_rk1)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[1u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 + v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[6u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd1 - v_rk3)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[2u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 + v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[5u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd2 - v_rk5)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[3u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 + v_rk7)) + 131072u)) >> 18u) & 1023u)]; + a_dst_buffer.ptr[4u] = WUFFS_JPEG__BIAS_AND_CLAMP[((((uint32_t)(((uint32_t)(v_rd3 - v_rk7)) + 131072u)) >> 18u) & 1023u)]; + } + return wuffs_base__make_empty_struct(); } -// -------- func json.decoder.decode_tokens +// ‼ WUFFS MULTI-FILE SECTION +x86_avx2 +// -------- func jpeg.decoder.decode_idct_x86_avx2 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_json__decoder__decode_tokens( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_vminor = 0; - uint32_t v_number_length = 0; - uint32_t v_number_status = 0; - uint32_t v_string_length = 0; - uint32_t v_whitespace_length = 0; - uint32_t v_depth = 0; - uint32_t v_stack_byte = 0; - uint32_t v_stack_bit = 0; - uint32_t v_match = 0; - uint32_t v_c4 = 0; - uint8_t v_c = 0; - uint8_t v_backslash = 0; - uint8_t v_char = 0; - uint8_t v_class = 0; - uint32_t v_multi_byte_utf8 = 0; - uint8_t v_backslash_x_ok = 0; - uint8_t v_backslash_x_value = 0; - uint32_t v_backslash_x_string = 0; - uint8_t v_uni4_ok = 0; - uint64_t v_uni4_string = 0; - uint32_t v_uni4_value = 0; - uint32_t v_uni4_high_surrogate = 0; - uint8_t v_uni8_ok = 0; - uint64_t v_uni8_string = 0; - uint32_t v_uni8_value = 0; - uint32_t v_expect = 0; - uint32_t v_expect_after_value = 0; - - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +static wuffs_base__empty_struct +wuffs_jpeg__decoder__decode_idct_x86_avx2( + wuffs_jpeg__decoder* self, + wuffs_base__slice_u8 a_dst_buffer, + uint64_t a_dst_stride, + uint32_t a_q) { + __m256i v_k_0000 = {0}; + __m256i v_k_8080 = {0}; + __m256i v_k_0000_0002 = {0}; + __m256i v_k_0001_FFFF = {0}; + __m256i v_k_0400_0000 = {0}; + __m256i v_k_29CF_1151_D630_1151 = {0}; + __m256i v_k_E333_133E_ADFD_1051 = {0}; + __m256i v_k_E6DC_25A1_1925_25A1 = {0}; + __m256i v_k_ECC1_E333_EFB0_ADFD = {0}; + __m128i v_az_coeffs = {0}; + __m256i v_az_ah00 = {0}; + __m256i v_az_ad00 = {0}; + __m256i v_az_eh00 = {0}; + __m256i v_az_adeh = {0}; + __m256i v_rows01 = {0}; + __m256i v_rows23 = {0}; + __m256i v_rows45 = {0}; + __m256i v_rows67 = {0}; + __m256i v_quants01 = {0}; + __m256i v_quants23 = {0}; + __m256i v_quants45 = {0}; + __m256i v_quants67 = {0}; + __m256i v_rows04 = {0}; + __m256i v_rows31 = {0}; + __m256i v_rows26 = {0}; + __m256i v_rows75 = {0}; + __m256i v_fp_rows62 = {0}; + __m256i v_fp_bq2662ad = {0}; + __m256i v_fp_bq2662eh = {0}; + __m256i v_fp_cb26ad = {0}; + __m256i v_fp_cb26eh = {0}; + __m256i v_fp_rows40pos = {0}; + __m256i v_fp_rows04neg = {0}; + __m256i v_fp_rows0pm4 = {0}; + __m256i v_fp_ccpmad = {0}; + __m256i v_fp_ccpmeh = {0}; + __m256i v_fp_cd01ad = {0}; + __m256i v_fp_cd01eh = {0}; + __m256i v_fp_cd32ad = {0}; + __m256i v_fp_cd32eh = {0}; + __m256i v_fp_sums7351 = {0}; + __m256i v_fp_sums5173 = {0}; + __m256i v_fp_ci73515173ad = {0}; + __m256i v_fp_ci73515173eh = {0}; + __m256i v_fp_cl7351ad = {0}; + __m256i v_fp_cl7351eh = {0}; + __m256i v_fp_rows13 = {0}; + __m256i v_fp_bq7153ad = {0}; + __m256i v_fp_bq7153eh = {0}; + __m256i v_fp_ck75ad = {0}; + __m256i v_fp_ck75eh = {0}; + __m256i v_fp_cl5173ad = {0}; + __m256i v_fp_cl5173eh = {0}; + __m256i v_fp_ck13ad = {0}; + __m256i v_fp_ck13eh = {0}; + __m256i v_intermediate01ad = {0}; + __m256i v_intermediate01eh = {0}; + __m256i v_intermediate01 = {0}; + __m256i v_intermediate32ad = {0}; + __m256i v_intermediate32eh = {0}; + __m256i v_intermediate32 = {0}; + __m256i v_intermediate45ad = {0}; + __m256i v_intermediate45eh = {0}; + __m256i v_intermediate45 = {0}; + __m256i v_intermediate76ad = {0}; + __m256i v_intermediate76eh = {0}; + __m256i v_intermediate76 = {0}; + __m256i v_ita0a1e0e1 = {0}; + __m256i v_ita2a3e2e3 = {0}; + __m256i v_ita4a5e4e5 = {0}; + __m256i v_ita6a7e6e7 = {0}; + __m256i v_ita0c0e0g0 = {0}; + __m256i v_ita1c1e1g1 = {0}; + __m256i v_ita4c4e4g4 = {0}; + __m256i v_ita5c5e5g5 = {0}; + __m256i v_ita0b0e0f0 = {0}; + __m256i v_ita4b4e4f4 = {0}; + __m256i v_itc0d0g0h0 = {0}; + __m256i v_itc4d4g4h4 = {0}; + __m256i v_intermediateae = {0}; + __m256i v_intermediatebf = {0}; + __m256i v_intermediatecg = {0}; + __m256i v_intermediatedh = {0}; + __m256i v_intermediatedb = {0}; + __m256i v_intermediatehf = {0}; + __m256i v_sp_cols62 = {0}; + __m256i v_sp_bq2662ad = {0}; + __m256i v_sp_bq2662eh = {0}; + __m256i v_sp_rb26ad = {0}; + __m256i v_sp_rb26eh = {0}; + __m256i v_sp_cols40pos = {0}; + __m256i v_sp_cols04neg = {0}; + __m256i v_sp_cols0pm4 = {0}; + __m256i v_sp_rcpmad = {0}; + __m256i v_sp_rcpmeh = {0}; + __m256i v_sp_rd01ad = {0}; + __m256i v_sp_rd01eh = {0}; + __m256i v_sp_rd32ad = {0}; + __m256i v_sp_rd32eh = {0}; + __m256i v_sp_sums7351 = {0}; + __m256i v_sp_sums5173 = {0}; + __m256i v_sp_ri73515173ad = {0}; + __m256i v_sp_ri73515173eh = {0}; + __m256i v_sp_rl7351ad = {0}; + __m256i v_sp_rl7351eh = {0}; + __m256i v_sp_cols13 = {0}; + __m256i v_sp_bq7153ad = {0}; + __m256i v_sp_bq7153eh = {0}; + __m256i v_sp_rk75ad = {0}; + __m256i v_sp_rk75eh = {0}; + __m256i v_sp_rl5173ad = {0}; + __m256i v_sp_rl5173eh = {0}; + __m256i v_sp_rk13ad = {0}; + __m256i v_sp_rk13eh = {0}; + __m256i v_final01ad = {0}; + __m256i v_final01eh = {0}; + __m256i v_final01 = {0}; + __m256i v_final32ad = {0}; + __m256i v_final32eh = {0}; + __m256i v_final32 = {0}; + __m256i v_final45ad = {0}; + __m256i v_final45eh = {0}; + __m256i v_final45 = {0}; + __m256i v_final76ad = {0}; + __m256i v_final76eh = {0}; + __m256i v_final76 = {0}; + __m256i v_fta0a1e0e1 = {0}; + __m256i v_fta2a3e2e3 = {0}; + __m256i v_fta4a5e4e5 = {0}; + __m256i v_fta6a7e6e7 = {0}; + __m256i v_fta0c0e0g0 = {0}; + __m256i v_fta1c1e1g1 = {0}; + __m256i v_fta4c4e4g4 = {0}; + __m256i v_fta5c5e5g5 = {0}; + __m256i v_fta0b0e0f0 = {0}; + __m256i v_ftc0d0g0h0 = {0}; + __m256i v_fta4b4e4f4 = {0}; + __m256i v_ftc4d4g4h4 = {0}; + __m256i v_finalae = {0}; + __m256i v_finalbf = {0}; + __m256i v_finalcg = {0}; + __m256i v_finaldh = {0}; + __m256i v_final0145 = {0}; + __m256i v_final2367 = {0}; + uint64_t v_final0 = 0; + uint64_t v_final1 = 0; + uint64_t v_final2 = 0; + uint64_t v_final3 = 0; + uint64_t v_final4 = 0; + uint64_t v_final5 = 0; + uint64_t v_final6 = 0; + uint64_t v_final7 = 0; + wuffs_base__slice_u8 v_remaining = {0}; - uint32_t coro_susp_point = self->private_impl.p_decode_tokens[0]; - if (coro_susp_point) { - v_depth = self->private_data.s_decode_tokens[0].v_depth; - v_expect = self->private_data.s_decode_tokens[0].v_expect; - v_expect_after_value = self->private_data.s_decode_tokens[0].v_expect_after_value; + if (8u > a_dst_stride) { + return wuffs_base__make_empty_struct(); } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if (self->private_impl.f_end_of_data) { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if (self->private_impl.f_quirks[18u]) { - if (self->private_impl.f_quirks[11u] || self->private_impl.f_quirks[12u] || self->private_impl.f_quirks[17u]) { - status = wuffs_base__make_status(wuffs_json__error__bad_quirk_combination); - goto exit; + v_k_0000 = _mm256_set_epi16((int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u), (int16_t)(0u)); + v_k_8080 = _mm256_set_epi16((int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u), (int16_t)(32896u)); + v_k_0000_0002 = _mm256_set_epi16((int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u), (int16_t)(2u), (int16_t)(0u)); + v_k_0001_FFFF = _mm256_set_epi16((int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(65535u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u), (int16_t)(1u)); + v_k_0400_0000 = _mm256_set_epi16((int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u), (int16_t)(0u), (int16_t)(1024u)); + v_k_29CF_1151_D630_1151 = _mm256_set_epi16((int16_t)(4433u), (int16_t)(54832u), (int16_t)(4433u), (int16_t)(54832u), (int16_t)(4433u), (int16_t)(54832u), (int16_t)(4433u), (int16_t)(54832u), (int16_t)(4433u), (int16_t)(10703u), (int16_t)(4433u), (int16_t)(10703u), (int16_t)(4433u), (int16_t)(10703u), (int16_t)(4433u), (int16_t)(10703u)); + v_k_E333_133E_ADFD_1051 = _mm256_set_epi16((int16_t)(4177u), (int16_t)(44541u), (int16_t)(4177u), (int16_t)(44541u), (int16_t)(4177u), (int16_t)(44541u), (int16_t)(4177u), (int16_t)(44541u), (int16_t)(4926u), (int16_t)(58163u), (int16_t)(4926u), (int16_t)(58163u), (int16_t)(4926u), (int16_t)(58163u), (int16_t)(4926u), (int16_t)(58163u)); + v_k_E6DC_25A1_1925_25A1 = _mm256_set_epi16((int16_t)(9633u), (int16_t)(6437u), (int16_t)(9633u), (int16_t)(6437u), (int16_t)(9633u), (int16_t)(6437u), (int16_t)(9633u), (int16_t)(6437u), (int16_t)(9633u), (int16_t)(59100u), (int16_t)(9633u), (int16_t)(59100u), (int16_t)(9633u), (int16_t)(59100u), (int16_t)(9633u), (int16_t)(59100u)); + v_k_ECC1_E333_EFB0_ADFD = _mm256_set_epi16((int16_t)(44541u), (int16_t)(61360u), (int16_t)(44541u), (int16_t)(61360u), (int16_t)(44541u), (int16_t)(61360u), (int16_t)(44541u), (int16_t)(61360u), (int16_t)(58163u), (int16_t)(60609u), (int16_t)(58163u), (int16_t)(60609u), (int16_t)(58163u), (int16_t)(60609u), (int16_t)(58163u), (int16_t)(60609u)); + do { + if (0u == (wuffs_base__peek_u64le__no_bounds_check((const uint8_t*)(const void*)(self->private_data.f_mcu_blocks[0u] + 8u)) | wuffs_base__peek_u64le__no_bounds_check((const uint8_t*)(const void*)(self->private_data.f_mcu_blocks[0u] + 16u)))) { + v_az_coeffs = _mm_or_si128(_mm_or_si128(_mm_or_si128(_mm_or_si128(_mm_or_si128(_mm_or_si128(_mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 8u)), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 16u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 24u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 32u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 40u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 48u))), _mm_lddqu_si128((const __m128i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 56u))); + if (0u == ((uint64_t)(_mm_cvtsi128_si64(_mm_packs_epi16(v_az_coeffs, v_az_coeffs))))) { + v_rows01 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 0u)); + v_quants01 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 0u)); + v_rows01 = _mm256_mullo_epi16(v_rows01, v_quants01); + v_az_ah00 = _mm256_slli_epi16(v_rows01, (int32_t)(2u)); + v_az_ad00 = _mm256_unpacklo_epi16(v_az_ah00, v_az_ah00); + v_az_eh00 = _mm256_unpackhi_epi16(v_az_ah00, v_az_ah00); + v_az_adeh = _mm256_inserti128_si256(v_az_ad00, _mm256_castsi256_si128(v_az_eh00), (int32_t)(1u)); + v_intermediateae = _mm256_shuffle_epi32(v_az_adeh, (int32_t)(0u)); + v_intermediatebf = _mm256_shuffle_epi32(v_az_adeh, (int32_t)(85u)); + v_intermediatecg = _mm256_shuffle_epi32(v_az_adeh, (int32_t)(170u)); + v_intermediatedh = _mm256_shuffle_epi32(v_az_adeh, (int32_t)(255u)); + break; } } - if (self->private_impl.f_quirks[15u] || self->private_impl.f_quirks[16u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_json__decoder__decode_leading(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } + v_rows01 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 0u)); + v_rows23 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 16u)); + v_rows45 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 32u)); + v_rows67 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_data.f_mcu_blocks[0u] + 48u)); + v_quants01 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 0u)); + v_quants23 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 16u)); + v_quants45 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 32u)); + v_quants67 = _mm256_lddqu_si256((const __m256i*)(const void*)(self->private_impl.f_quant_tables[a_q] + 48u)); + v_rows01 = _mm256_mullo_epi16(v_rows01, v_quants01); + v_rows23 = _mm256_mullo_epi16(v_rows23, v_quants23); + v_rows45 = _mm256_mullo_epi16(v_rows45, v_quants45); + v_rows67 = _mm256_mullo_epi16(v_rows67, v_quants67); + v_rows04 = _mm256_permute2x128_si256(v_rows01, v_rows45, (int32_t)(32u)); + v_rows31 = _mm256_permute2x128_si256(v_rows23, v_rows01, (int32_t)(49u)); + v_rows26 = _mm256_permute2x128_si256(v_rows23, v_rows67, (int32_t)(32u)); + v_rows75 = _mm256_permute2x128_si256(v_rows67, v_rows45, (int32_t)(49u)); + v_fp_rows62 = _mm256_permute2x128_si256(v_rows26, v_rows26, (int32_t)(1u)); + v_fp_bq2662ad = _mm256_unpacklo_epi16(v_rows26, v_fp_rows62); + v_fp_bq2662eh = _mm256_unpackhi_epi16(v_rows26, v_fp_rows62); + v_fp_cb26ad = _mm256_madd_epi16(v_fp_bq2662ad, v_k_29CF_1151_D630_1151); + v_fp_cb26eh = _mm256_madd_epi16(v_fp_bq2662eh, v_k_29CF_1151_D630_1151); + v_fp_rows40pos = _mm256_permute2x128_si256(v_rows04, v_rows04, (int32_t)(1u)); + v_fp_rows04neg = _mm256_sign_epi16(v_rows04, v_k_0001_FFFF); + v_fp_rows0pm4 = _mm256_add_epi16(v_fp_rows40pos, v_fp_rows04neg); + v_fp_ccpmad = _mm256_srai_epi32(_mm256_unpacklo_epi16(v_k_0000, v_fp_rows0pm4), (int32_t)(3u)); + v_fp_ccpmeh = _mm256_srai_epi32(_mm256_unpackhi_epi16(v_k_0000, v_fp_rows0pm4), (int32_t)(3u)); + v_fp_cd01ad = _mm256_add_epi32(v_fp_ccpmad, v_fp_cb26ad); + v_fp_cd01eh = _mm256_add_epi32(v_fp_ccpmeh, v_fp_cb26eh); + v_fp_cd32ad = _mm256_sub_epi32(v_fp_ccpmad, v_fp_cb26ad); + v_fp_cd32eh = _mm256_sub_epi32(v_fp_ccpmeh, v_fp_cb26eh); + v_fp_sums7351 = _mm256_add_epi16(v_rows75, v_rows31); + v_fp_sums5173 = _mm256_permute2x128_si256(v_fp_sums7351, v_fp_sums7351, (int32_t)(1u)); + v_fp_ci73515173ad = _mm256_unpacklo_epi16(v_fp_sums7351, v_fp_sums5173); + v_fp_ci73515173eh = _mm256_unpackhi_epi16(v_fp_sums7351, v_fp_sums5173); + v_fp_cl7351ad = _mm256_madd_epi16(v_fp_ci73515173ad, v_k_E6DC_25A1_1925_25A1); + v_fp_cl7351eh = _mm256_madd_epi16(v_fp_ci73515173eh, v_k_E6DC_25A1_1925_25A1); + v_fp_rows13 = _mm256_permute2x128_si256(v_rows31, v_rows31, (int32_t)(1u)); + v_fp_bq7153ad = _mm256_unpacklo_epi16(v_rows75, v_fp_rows13); + v_fp_bq7153eh = _mm256_unpackhi_epi16(v_rows75, v_fp_rows13); + v_fp_ck75ad = _mm256_add_epi32(_mm256_madd_epi16(v_fp_bq7153ad, v_k_ECC1_E333_EFB0_ADFD), v_fp_cl7351ad); + v_fp_ck75eh = _mm256_add_epi32(_mm256_madd_epi16(v_fp_bq7153eh, v_k_ECC1_E333_EFB0_ADFD), v_fp_cl7351eh); + v_fp_cl5173ad = _mm256_permute2x128_si256(v_fp_cl7351ad, v_fp_cl7351ad, (int32_t)(1u)); + v_fp_cl5173eh = _mm256_permute2x128_si256(v_fp_cl7351eh, v_fp_cl7351eh, (int32_t)(1u)); + v_fp_ck13ad = _mm256_add_epi32(v_fp_cl5173ad, _mm256_madd_epi16(v_fp_bq7153ad, v_k_E333_133E_ADFD_1051)); + v_fp_ck13eh = _mm256_add_epi32(v_fp_cl5173eh, _mm256_madd_epi16(v_fp_bq7153eh, v_k_E333_133E_ADFD_1051)); + v_intermediate01ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_fp_cd01ad, v_fp_ck13ad), v_k_0400_0000), (int32_t)(11u)); + v_intermediate01eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_fp_cd01eh, v_fp_ck13eh), v_k_0400_0000), (int32_t)(11u)); + v_intermediate01 = _mm256_packs_epi32(v_intermediate01ad, v_intermediate01eh); + v_intermediate32ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_fp_cd32ad, v_fp_ck75ad), v_k_0400_0000), (int32_t)(11u)); + v_intermediate32eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_fp_cd32eh, v_fp_ck75eh), v_k_0400_0000), (int32_t)(11u)); + v_intermediate32 = _mm256_packs_epi32(v_intermediate32ad, v_intermediate32eh); + v_intermediate45ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_fp_cd32ad, v_fp_ck75ad), v_k_0400_0000), (int32_t)(11u)); + v_intermediate45eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_fp_cd32eh, v_fp_ck75eh), v_k_0400_0000), (int32_t)(11u)); + v_intermediate45 = _mm256_packs_epi32(v_intermediate45ad, v_intermediate45eh); + v_intermediate76ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_fp_cd01ad, v_fp_ck13ad), v_k_0400_0000), (int32_t)(11u)); + v_intermediate76eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_fp_cd01eh, v_fp_ck13eh), v_k_0400_0000), (int32_t)(11u)); + v_intermediate76 = _mm256_packs_epi32(v_intermediate76ad, v_intermediate76eh); + v_ita0a1e0e1 = _mm256_permute4x64_epi64(v_intermediate01, (int32_t)(216u)); + v_ita2a3e2e3 = _mm256_permute4x64_epi64(v_intermediate32, (int32_t)(114u)); + v_ita4a5e4e5 = _mm256_permute4x64_epi64(v_intermediate45, (int32_t)(216u)); + v_ita6a7e6e7 = _mm256_permute4x64_epi64(v_intermediate76, (int32_t)(114u)); + v_ita0c0e0g0 = _mm256_unpacklo_epi16(v_ita0a1e0e1, v_ita2a3e2e3); + v_ita1c1e1g1 = _mm256_unpackhi_epi16(v_ita0a1e0e1, v_ita2a3e2e3); + v_ita4c4e4g4 = _mm256_unpacklo_epi16(v_ita4a5e4e5, v_ita6a7e6e7); + v_ita5c5e5g5 = _mm256_unpackhi_epi16(v_ita4a5e4e5, v_ita6a7e6e7); + v_ita0b0e0f0 = _mm256_unpacklo_epi16(v_ita0c0e0g0, v_ita1c1e1g1); + v_itc0d0g0h0 = _mm256_unpackhi_epi16(v_ita0c0e0g0, v_ita1c1e1g1); + v_ita4b4e4f4 = _mm256_unpacklo_epi16(v_ita4c4e4g4, v_ita5c5e5g5); + v_itc4d4g4h4 = _mm256_unpackhi_epi16(v_ita4c4e4g4, v_ita5c5e5g5); + v_intermediateae = _mm256_unpacklo_epi64(v_ita0b0e0f0, v_ita4b4e4f4); + v_intermediatebf = _mm256_unpackhi_epi64(v_ita0b0e0f0, v_ita4b4e4f4); + v_intermediatecg = _mm256_unpacklo_epi64(v_itc0d0g0h0, v_itc4d4g4h4); + v_intermediatedh = _mm256_unpackhi_epi64(v_itc0d0g0h0, v_itc4d4g4h4); + } while (0); + v_intermediatedb = _mm256_permute2x128_si256(v_intermediatedh, v_intermediatebf, (int32_t)(32u)); + v_intermediatehf = _mm256_permute2x128_si256(v_intermediatedh, v_intermediatebf, (int32_t)(49u)); + v_sp_cols62 = _mm256_permute2x128_si256(v_intermediatecg, v_intermediatecg, (int32_t)(1u)); + v_sp_bq2662ad = _mm256_unpacklo_epi16(v_intermediatecg, v_sp_cols62); + v_sp_bq2662eh = _mm256_unpackhi_epi16(v_intermediatecg, v_sp_cols62); + v_sp_rb26ad = _mm256_madd_epi16(v_sp_bq2662ad, v_k_29CF_1151_D630_1151); + v_sp_rb26eh = _mm256_madd_epi16(v_sp_bq2662eh, v_k_29CF_1151_D630_1151); + v_sp_cols40pos = _mm256_permute2x128_si256(v_intermediateae, v_intermediateae, (int32_t)(1u)); + v_sp_cols04neg = _mm256_sign_epi16(v_intermediateae, v_k_0001_FFFF); + v_sp_cols0pm4 = _mm256_add_epi16(v_sp_cols40pos, v_sp_cols04neg); + v_sp_rcpmad = _mm256_srai_epi32(_mm256_unpacklo_epi16(v_k_0000, v_sp_cols0pm4), (int32_t)(3u)); + v_sp_rcpmeh = _mm256_srai_epi32(_mm256_unpackhi_epi16(v_k_0000, v_sp_cols0pm4), (int32_t)(3u)); + v_sp_rd01ad = _mm256_add_epi32(v_sp_rcpmad, v_sp_rb26ad); + v_sp_rd01eh = _mm256_add_epi32(v_sp_rcpmeh, v_sp_rb26eh); + v_sp_rd32ad = _mm256_sub_epi32(v_sp_rcpmad, v_sp_rb26ad); + v_sp_rd32eh = _mm256_sub_epi32(v_sp_rcpmeh, v_sp_rb26eh); + v_sp_sums7351 = _mm256_add_epi16(v_intermediatehf, v_intermediatedb); + v_sp_sums5173 = _mm256_permute2x128_si256(v_sp_sums7351, v_sp_sums7351, (int32_t)(1u)); + v_sp_ri73515173ad = _mm256_unpacklo_epi16(v_sp_sums7351, v_sp_sums5173); + v_sp_ri73515173eh = _mm256_unpackhi_epi16(v_sp_sums7351, v_sp_sums5173); + v_sp_rl7351ad = _mm256_madd_epi16(v_sp_ri73515173ad, v_k_E6DC_25A1_1925_25A1); + v_sp_rl7351eh = _mm256_madd_epi16(v_sp_ri73515173eh, v_k_E6DC_25A1_1925_25A1); + v_sp_cols13 = _mm256_permute2x128_si256(v_intermediatedb, v_intermediatedb, (int32_t)(1u)); + v_sp_bq7153ad = _mm256_unpacklo_epi16(v_intermediatehf, v_sp_cols13); + v_sp_bq7153eh = _mm256_unpackhi_epi16(v_intermediatehf, v_sp_cols13); + v_sp_rk75ad = _mm256_add_epi32(_mm256_madd_epi16(v_sp_bq7153ad, v_k_ECC1_E333_EFB0_ADFD), v_sp_rl7351ad); + v_sp_rk75eh = _mm256_add_epi32(_mm256_madd_epi16(v_sp_bq7153eh, v_k_ECC1_E333_EFB0_ADFD), v_sp_rl7351eh); + v_sp_rl5173ad = _mm256_permute2x128_si256(v_sp_rl7351ad, v_sp_rl7351ad, (int32_t)(1u)); + v_sp_rl5173eh = _mm256_permute2x128_si256(v_sp_rl7351eh, v_sp_rl7351eh, (int32_t)(1u)); + v_sp_rk13ad = _mm256_add_epi32(v_sp_rl5173ad, _mm256_madd_epi16(v_sp_bq7153ad, v_k_E333_133E_ADFD_1051)); + v_sp_rk13eh = _mm256_add_epi32(v_sp_rl5173eh, _mm256_madd_epi16(v_sp_bq7153eh, v_k_E333_133E_ADFD_1051)); + v_final01ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_sp_rd01ad, v_sp_rk13ad), v_k_0000_0002), (int32_t)(18u)); + v_final01eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_sp_rd01eh, v_sp_rk13eh), v_k_0000_0002), (int32_t)(18u)); + v_final01 = _mm256_packs_epi32(v_final01ad, v_final01eh); + v_final32ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_sp_rd32ad, v_sp_rk75ad), v_k_0000_0002), (int32_t)(18u)); + v_final32eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_add_epi32(v_sp_rd32eh, v_sp_rk75eh), v_k_0000_0002), (int32_t)(18u)); + v_final32 = _mm256_packs_epi32(v_final32ad, v_final32eh); + v_final45ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_sp_rd32ad, v_sp_rk75ad), v_k_0000_0002), (int32_t)(18u)); + v_final45eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_sp_rd32eh, v_sp_rk75eh), v_k_0000_0002), (int32_t)(18u)); + v_final45 = _mm256_packs_epi32(v_final45ad, v_final45eh); + v_final76ad = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_sp_rd01ad, v_sp_rk13ad), v_k_0000_0002), (int32_t)(18u)); + v_final76eh = _mm256_srai_epi32(_mm256_add_epi32(_mm256_sub_epi32(v_sp_rd01eh, v_sp_rk13eh), v_k_0000_0002), (int32_t)(18u)); + v_final76 = _mm256_packs_epi32(v_final76ad, v_final76eh); + v_fta0a1e0e1 = _mm256_permute4x64_epi64(v_final01, (int32_t)(216u)); + v_fta2a3e2e3 = _mm256_permute4x64_epi64(v_final32, (int32_t)(114u)); + v_fta4a5e4e5 = _mm256_permute4x64_epi64(v_final45, (int32_t)(216u)); + v_fta6a7e6e7 = _mm256_permute4x64_epi64(v_final76, (int32_t)(114u)); + v_fta0c0e0g0 = _mm256_unpacklo_epi16(v_fta0a1e0e1, v_fta2a3e2e3); + v_fta1c1e1g1 = _mm256_unpackhi_epi16(v_fta0a1e0e1, v_fta2a3e2e3); + v_fta4c4e4g4 = _mm256_unpacklo_epi16(v_fta4a5e4e5, v_fta6a7e6e7); + v_fta5c5e5g5 = _mm256_unpackhi_epi16(v_fta4a5e4e5, v_fta6a7e6e7); + v_fta0b0e0f0 = _mm256_unpacklo_epi16(v_fta0c0e0g0, v_fta1c1e1g1); + v_ftc0d0g0h0 = _mm256_unpackhi_epi16(v_fta0c0e0g0, v_fta1c1e1g1); + v_fta4b4e4f4 = _mm256_unpacklo_epi16(v_fta4c4e4g4, v_fta5c5e5g5); + v_ftc4d4g4h4 = _mm256_unpackhi_epi16(v_fta4c4e4g4, v_fta5c5e5g5); + v_finalae = _mm256_unpacklo_epi64(v_fta0b0e0f0, v_fta4b4e4f4); + v_finalbf = _mm256_unpackhi_epi64(v_fta0b0e0f0, v_fta4b4e4f4); + v_finalcg = _mm256_unpacklo_epi64(v_ftc0d0g0h0, v_ftc4d4g4h4); + v_finaldh = _mm256_unpackhi_epi64(v_ftc0d0g0h0, v_ftc4d4g4h4); + v_final0145 = _mm256_add_epi8(_mm256_packs_epi16(v_finalae, v_finalbf), v_k_8080); + v_final2367 = _mm256_add_epi8(_mm256_packs_epi16(v_finalcg, v_finaldh), v_k_8080); + v_final0 = ((uint64_t)(_mm256_extract_epi64(v_final0145, (int32_t)(0u)))); + v_final1 = ((uint64_t)(_mm256_extract_epi64(v_final0145, (int32_t)(1u)))); + v_final2 = ((uint64_t)(_mm256_extract_epi64(v_final2367, (int32_t)(0u)))); + v_final3 = ((uint64_t)(_mm256_extract_epi64(v_final2367, (int32_t)(1u)))); + v_final4 = ((uint64_t)(_mm256_extract_epi64(v_final0145, (int32_t)(2u)))); + v_final5 = ((uint64_t)(_mm256_extract_epi64(v_final0145, (int32_t)(3u)))); + v_final6 = ((uint64_t)(_mm256_extract_epi64(v_final2367, (int32_t)(2u)))); + v_final7 = ((uint64_t)(_mm256_extract_epi64(v_final2367, (int32_t)(3u)))); + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final0); + a_dst_buffer = v_remaining; + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final1); + a_dst_buffer = v_remaining; + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final2); + a_dst_buffer = v_remaining; + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final3); + a_dst_buffer = v_remaining; + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final4); + a_dst_buffer = v_remaining; + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final5); + a_dst_buffer = v_remaining; + if (a_dst_stride > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + v_remaining = wuffs_base__slice_u8__subslice_i(a_dst_buffer, a_dst_stride); + wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final6); + a_dst_buffer = v_remaining; + if (8u > ((uint64_t)(a_dst_buffer.len))) { + return wuffs_base__make_empty_struct(); + } + wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final7); + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +// ‼ WUFFS MULTI-FILE SECTION -x86_avx2 + +// -------- func jpeg.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_jpeg__decoder__get_quirk( + const wuffs_jpeg__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (a_key == 2u) { + if (self->private_impl.f_use_lower_quality) { + return 18446744073709551615u; + } + } else if (a_key == 1220532224u) { + if (self->private_impl.f_reject_progressive_jpegs) { + return 1u; + } + } + return 0u; +} + +// -------- func jpeg.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_jpeg__decoder__set_quirk( + wuffs_jpeg__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (a_key == 2u) { + self->private_impl.f_use_lower_quality = (a_value >= 9223372036854775808u); + return wuffs_base__make_status(NULL); + } else if (a_key == 1220532224u) { + self->private_impl.f_reject_progressive_jpegs = (a_value != 0u); + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func jpeg.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_jpeg__decoder__decode_image_config( + wuffs_jpeg__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_jpeg__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_jpeg__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func jpeg.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__do_decode_image_config( + wuffs_jpeg__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint8_t v_marker = 0; + uint32_t v_pixfmt = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + if (coro_susp_point) { + v_marker = self->private_data.s_do_decode_image_config.v_marker; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 != 255u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (v_c8 != 216u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_header); + goto exit; } - v_expect = 7858u; - label__outer__continue:; while (true) { while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - goto label__outer__continue; - } - v_whitespace_length = 0u; - v_c = 0u; - v_class = 0u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (v_whitespace_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_whitespace_length = 0u; - } - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - goto label__outer__continue; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - v_class = WUFFS_JSON__LUT_CLASSES[v_c]; - if (v_class != 0u) { - break; - } - iop_a_src += 1u; - if (v_whitespace_length >= 65534u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(65535u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_whitespace_length = 0u; - goto label__outer__continue; + goto suspend; } - v_whitespace_length += 1u; + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; } - if (v_whitespace_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_whitespace_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__outer__continue; + if (v_c8 == 255u) { + break; + } + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; } - if (0u == (v_expect & (((uint32_t)(1u)) << v_class))) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; + if (v_c8 != 255u) { + v_marker = v_c8; + break; } - if (v_class == 1u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - label__string_loop_outer__continue:; - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - continue; - } - v_string_length = 0u; + } + if (v_marker == 0u) { + continue; + } else if ((208u <= v_marker) && (v_marker <= 217u)) { + if (v_marker <= 215u) { + continue; + } + } else { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_4 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - } - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - goto label__string_loop_outer__continue; + goto suspend; } - while (((uint64_t)(io2_a_src - iop_a_src)) > 4u) { - v_c4 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - if (0u != (WUFFS_JSON__LUT_CHARS[(255u & (v_c4 >> 0u))] | - WUFFS_JSON__LUT_CHARS[(255u & (v_c4 >> 8u))] | - WUFFS_JSON__LUT_CHARS[(255u & (v_c4 >> 16u))] | - WUFFS_JSON__LUT_CHARS[(255u & (v_c4 >> 24u))])) { - break; - } - iop_a_src += 4u; - if (v_string_length > 65527u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_string_length + 4u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; - } - v_string_length += 4u; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 8) { + t_4 = ((uint32_t)(*scratch >> 48)); + break; } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - v_char = WUFFS_JSON__LUT_CHARS[v_c]; - if (v_char == 0u) { - iop_a_src += 1u; - if (v_string_length >= 65531u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(65532u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; - } - v_string_length += 1u; - continue; - } else if (v_char == 1u) { - if (v_string_length != 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - } - goto label__string_loop_outer__break; - } else if (v_char == 2u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } - } - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - goto label__string_loop_outer__continue; - } - v_c = ((uint8_t)((wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u))); - v_backslash = WUFFS_JSON__LUT_BACKSLASHES[v_c]; - if ((v_backslash & 128u) != 0u) { - iop_a_src += 2u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | ((uint32_t)((v_backslash & 127u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } else if (v_backslash != 0u) { - if (self->private_impl.f_quirks[WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[(v_backslash & 7u)]]) { - iop_a_src += 2u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | ((uint32_t)(WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[(v_backslash & 7u)]))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - } else if (v_c == 117u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 6u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); - goto label__string_loop_outer__continue; - } - v_uni4_string = (((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))) >> 16u); - v_uni4_value = 0u; - v_uni4_ok = 128u; - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 0u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)((v_c & 15u))) << 12u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 8u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)((v_c & 15u))) << 8u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 16u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)((v_c & 15u))) << 4u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 24u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)((v_c & 15u))) << 0u); - if (v_uni4_ok == 0u) { - } else if ((v_uni4_value < 55296u) || (57343u < v_uni4_value)) { - iop_a_src += 6u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } else if (v_uni4_value >= 56320u) { - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) < 12u) { - if (a_src && a_src->meta.closed) { - if (self->private_impl.f_quirks[20u]) { - iop_a_src += 6u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - goto label__string_loop_outer__continue; - } - v_uni4_string = (wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 4u) >> 16u); - if (((255u & (v_uni4_string >> 0u)) != 92u) || ((255u & (v_uni4_string >> 8u)) != 117u)) { - v_uni4_high_surrogate = 0u; - v_uni4_value = 0u; - v_uni4_ok = 0u; - } else { - v_uni4_high_surrogate = (65536u + ((v_uni4_value - 55296u) << 10u)); - v_uni4_value = 0u; - v_uni4_ok = 128u; - v_uni4_string >>= 16u; - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 0u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)((v_c & 15u))) << 12u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 8u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)((v_c & 15u))) << 8u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 16u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)((v_c & 15u))) << 4u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 24u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)((v_c & 15u))) << 0u); - } - if ((v_uni4_ok != 0u) && (56320u <= v_uni4_value) && (v_uni4_value <= 57343u)) { - v_uni4_value -= 56320u; - iop_a_src += 12u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | v_uni4_high_surrogate | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(12u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - } - if (self->private_impl.f_quirks[20u]) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 6u) { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; - } - iop_a_src += 6u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - } else if ((v_c == 85u) && self->private_impl.f_quirks[2u]) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 10u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - goto label__string_loop_outer__continue; - } - v_uni8_string = wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 2u); - v_uni8_value = 0u; - v_uni8_ok = 128u; - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 0u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)((v_c & 15u))) << 28u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 8u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)((v_c & 15u))) << 24u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 16u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)((v_c & 15u))) << 20u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 24u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)((v_c & 15u))) << 16u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 32u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)((v_c & 15u))) << 12u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 40u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)((v_c & 15u))) << 8u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 48u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)((v_c & 15u))) << 4u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 56u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)((v_c & 15u))) << 0u); - if (v_uni8_ok == 0u) { - } else if ((v_uni8_value < 55296u) || ((57343u < v_uni8_value) && (v_uni8_value <= 1114111u))) { - iop_a_src += 10u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | (v_uni8_value & 2097151u)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(10u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } else if (self->private_impl.f_quirks[20u]) { - iop_a_src += 10u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(10u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - } else if ((v_c == 120u) && self->private_impl.f_quirks[9u]) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); - goto label__string_loop_outer__continue; - } - v_backslash_x_string = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - v_backslash_x_ok = 128u; - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_backslash_x_string >> 16u))]; - v_backslash_x_ok &= v_c; - v_backslash_x_value = ((uint8_t)(((v_c & 15u) << 4u))); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_backslash_x_string >> 24u))]; - v_backslash_x_ok &= v_c; - v_backslash_x_value = ((uint8_t)((v_backslash_x_value | (v_c & 15u)))); - if ((v_backslash_x_ok == 0u) || ((v_backslash_x_string & 65535u) != 30812u)) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } - iop_a_src += 4u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | ((uint32_t)(v_backslash_x_value))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } else if (v_char == 3u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } - } - if (a_src && a_src->meta.closed) { - if (self->private_impl.f_quirks[20u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); - goto label__string_loop_outer__continue; - } - v_multi_byte_utf8 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - if ((v_multi_byte_utf8 & 49152u) == 32768u) { - v_multi_byte_utf8 = ((1984u & ((uint32_t)(v_multi_byte_utf8 << 6u))) | (63u & (v_multi_byte_utf8 >> 8u))); - iop_a_src += 2u; - if (v_string_length >= 65528u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_string_length + 2u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; - } - v_string_length += 2u; - continue; - } - } else if (v_char == 4u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } - } - if (a_src && a_src->meta.closed) { - if (self->private_impl.f_quirks[20u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(12); - goto label__string_loop_outer__continue; - } - v_multi_byte_utf8 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - if ((v_multi_byte_utf8 & 12632064u) == 8421376u) { - v_multi_byte_utf8 = ((61440u & ((uint32_t)(v_multi_byte_utf8 << 12u))) | (4032u & (v_multi_byte_utf8 >> 2u)) | (63u & (v_multi_byte_utf8 >> 16u))); - if ((2047u < v_multi_byte_utf8) && ((v_multi_byte_utf8 < 55296u) || (57343u < v_multi_byte_utf8))) { - iop_a_src += 3u; - if (v_string_length >= 65528u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_string_length + 3u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; - } - v_string_length += 3u; - continue; - } - } - } else if (v_char == 5u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } - } - if (a_src && a_src->meta.closed) { - if (self->private_impl.f_quirks[20u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(13); - goto label__string_loop_outer__continue; - } - v_multi_byte_utf8 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - if ((v_multi_byte_utf8 & 3233857536u) == 2155905024u) { - v_multi_byte_utf8 = ((1835008u & ((uint32_t)(v_multi_byte_utf8 << 18u))) | - (258048u & ((uint32_t)(v_multi_byte_utf8 << 4u))) | - (4032u & (v_multi_byte_utf8 >> 10u)) | - (63u & (v_multi_byte_utf8 >> 24u))); - if ((65535u < v_multi_byte_utf8) && (v_multi_byte_utf8 <= 1114111u)) { - iop_a_src += 4u; - if (v_string_length >= 65528u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_string_length + 4u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; - } - v_string_length += 4u; - continue; - } - } - } - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } - } - if ((v_char & 128u) != 0u) { - if (self->private_impl.f_quirks[0u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | ((uint32_t)((v_char & 127u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - if (v_char == 138u) { - status = wuffs_base__make_status(wuffs_json__error__bad_new_line_in_a_string); - goto exit; - } - status = wuffs_base__make_status(wuffs_json__error__bad_c0_control_code); - goto exit; - } - if (self->private_impl.f_quirks[20u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); - goto exit; + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); } } - label__string_loop_outer__break:; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(14); - continue; - } - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(15); - continue; - } - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - break; + self->private_impl.f_payload_length = t_4; + } + if (self->private_impl.f_payload_length < 2u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); + goto exit; + } + self->private_impl.f_payload_length -= 2u; + } + if (v_marker < 192u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); + goto exit; + } else if (v_marker < 208u) { + if (v_marker <= 194u) { + if ((v_marker == 194u) && self->private_impl.f_reject_progressive_jpegs) { + status = wuffs_base__make_status(wuffs_jpeg__error__rejected_progressive_jpeg); + goto exit; + } else if (self->private_impl.f_sof_marker != 0u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; } - if (0u == (v_expect & (((uint32_t)(1u)) << 4u))) { - v_expect = 4104u; - goto label__outer__continue; + self->private_impl.f_sof_marker = v_marker; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + status = wuffs_jpeg__decoder__decode_sof(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; } break; - } else if (v_class == 2u) { - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (0u == (v_expect & (((uint32_t)(1u)) << 8u))) { - if (self->private_impl.f_quirks[13u]) { - v_expect = 4162u; - } else { - v_expect = 4098u; - } - } else { - if (self->private_impl.f_quirks[13u]) { - v_expect = 8114u; - } else { - v_expect = 7858u; - } + } else if (v_marker == 195u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_lossless_coding); + goto exit; + } else if (v_marker == 196u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } else if ((197u <= v_marker) && (v_marker <= 199u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_hierarchical_coding); + goto exit; + } else if (v_marker == 200u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_arithmetic_coding); + goto exit; + } + } else if (v_marker < 224u) { + if (v_marker < 218u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); + goto exit; + } else if (v_marker == 218u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } else if (v_marker == 219u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - goto label__outer__continue; - } else if (v_class == 3u) { - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 7858u; - goto label__outer__continue; - } else if (v_class == 4u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_jpeg__decoder__decode_dqt(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + continue; + } else if (v_marker == 221u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_jpeg__decoder__decode_dri(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + continue; + } else { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); + goto exit; + } + } else if (v_marker < 240u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + status = wuffs_jpeg__decoder__decode_appn(self, a_src, v_marker); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + continue; + } else { + if (v_marker == 254u) { + } else { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); + goto exit; + } + } + self->private_data.s_do_decode_image_config.scratch = self->private_impl.f_payload_length; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_image_config.scratch; + self->private_impl.f_payload_length = 0u; + } + self->private_impl.choosy_decode_idct = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) + wuffs_base__cpu_arch__have_x86_avx2() ? &wuffs_jpeg__decoder__decode_idct_x86_avx2 : +#endif + self->private_impl.choosy_decode_idct); + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + v_pixfmt = 536870920u; + if (self->private_impl.f_num_components > 1u) { + v_pixfmt = 2415954056u; + } + wuffs_base__image_config__set( + a_dst, + v_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + true); + } + self->private_impl.f_call_sequence = 32u; + + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_image_config.v_marker = v_marker; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.decode_dqt + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_dqt( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint8_t v_q = 0; + uint32_t v_i = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_dqt; + if (coro_susp_point) { + v_q = self->private_data.s_decode_dqt.v_q; + v_i = self->private_data.s_decode_dqt.v_i; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (self->private_impl.f_payload_length > 0u) { + self->private_impl.f_payload_length -= 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (((uint8_t)(v_c8 & 15u)) > 3u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dqt_marker); + goto exit; + } + v_q = ((uint8_t)(v_c8 & 15u)); + if (((uint8_t)(v_c8 >> 4u)) == 1u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision); + goto exit; + } else if ((((uint8_t)(v_c8 >> 4u)) > 1u) || (self->private_impl.f_payload_length < 64u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dqt_marker); + goto exit; + } + self->private_impl.f_payload_length -= 64u; + v_i = 0u; + while (v_i < 64u) { + v_i += 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint16_t t_1 = *iop_a_src++; + self->private_impl.f_quant_tables[v_q][WUFFS_JPEG__UNZIG[v_i]] = t_1; + } + } + self->private_impl.f_seen_dqt[v_q] = true; + if (self->private_impl.f_sof_marker == 0u) { + v_i = 0u; + while (v_i < 64u) { + self->private_impl.f_saved_quant_tables[v_q][v_i] = self->private_impl.f_quant_tables[v_q][v_i]; + v_i += 1u; + } + self->private_impl.f_saved_seen_dqt[v_q] = true; + } + } + + goto ok; + ok: + self->private_impl.p_decode_dqt = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_dqt = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_dqt.v_q = v_q; + self->private_data.s_decode_dqt.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.decode_dri + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_dri( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_dri; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_payload_length != 2u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dri_marker); + goto exit; + } + self->private_impl.f_payload_length = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint16_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_0 = wuffs_base__peek_u16be__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_decode_dri.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_dri.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 8) { + t_0 = ((uint16_t)(*scratch >> 48)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + self->private_impl.f_restart_interval = t_0; + } + if (self->private_impl.f_sof_marker == 0u) { + self->private_impl.f_saved_restart_interval = self->private_impl.f_restart_interval; + } + + goto ok; + ok: + self->private_impl.p_decode_dri = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_dri = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.decode_appn + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_appn( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src, + uint8_t a_marker) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_appn; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + do { + if (a_marker == 224u) { + if (self->private_impl.f_payload_length >= 5u) { + self->private_impl.f_payload_length -= 5u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_appn.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_appn.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_c32 = t_0; + } + if (v_c32 != 1179207242u) { + self->private_impl.f_payload_length = (65535u & (self->private_impl.f_payload_length + 1u)); + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + self->private_impl.f_is_jfif = (v_c8 == 0u); + } + } else if (a_marker == 238u) { + if (self->private_impl.f_payload_length >= 12u) { + self->private_impl.f_payload_length -= 12u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_appn.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_appn.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + v_c32 = t_2; + } + if (v_c32 != 1651467329u) { + self->private_impl.f_payload_length = (65535u & (self->private_impl.f_payload_length + 8u)); + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_appn.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_appn.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; + } + } + v_c32 = t_3; + } + if ((255u & v_c32) != 101u) { + self->private_impl.f_payload_length = (65535u & (self->private_impl.f_payload_length + 4u)); + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_4 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_appn.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_appn.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 24) { + t_4 = ((uint32_t)(*scratch)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)) << 56; + } + } + v_c32 = t_4; + } + if ((v_c32 >> 24u) == 0u) { + self->private_impl.f_is_adobe = 1u; + } else { + self->private_impl.f_is_adobe = 2u; + } + } + } + } while (0); + self->private_data.s_decode_appn.scratch = self->private_impl.f_payload_length; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (self->private_data.s_decode_appn.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_decode_appn.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_decode_appn.scratch; + self->private_impl.f_payload_length = 0u; + + goto ok; + ok: + self->private_impl.p_decode_appn = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_appn = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.decode_sof + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_sof( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint8_t v_comp_h = 0; + uint8_t v_comp_v = 0; + uint32_t v_i = 0; + uint32_t v_j = 0; + bool v_has_h24 = false; + bool v_has_h3 = false; + bool v_has_v24 = false; + bool v_has_v3 = false; + uint32_t v_upper_bound = 0; + uint64_t v_wh0 = 0; + uint64_t v_wh1 = 0; + uint64_t v_wh2 = 0; + uint64_t v_wh3 = 0; + uint64_t v_progressive = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_sof; + if (coro_susp_point) { + v_i = self->private_data.s_decode_sof.v_i; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_payload_length < 6u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; + } + self->private_impl.f_payload_length -= 6u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 == 8u) { + } else if (v_c8 == 12u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision_12_bits); + goto exit; + } else if (v_c8 == 16u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision_16_bits); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_1 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_sof.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_sof.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 8) { + t_1 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); + } + } + self->private_impl.f_height = t_1; + } + if (self->private_impl.f_height == 0u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_implicit_height); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_2 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_sof.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_sof.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 8) { + t_2 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } + } + self->private_impl.f_width = t_2; + } + if (self->private_impl.f_width == 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if ((v_c8 == 0u) || (v_c8 > 4u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; + } else if (v_c8 == 2u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_color_model); + goto exit; + } + self->private_impl.f_num_components = ((uint32_t)(v_c8)); + if (self->private_impl.f_payload_length != (3u * self->private_impl.f_num_components)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; + } + self->private_impl.f_payload_length = 0u; + v_i = 0u; + while (v_i < self->private_impl.f_num_components) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + self->private_impl.f_components_c[v_i] = t_4; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + v_comp_h = ((uint8_t)(v_c8 >> 4u)); + v_comp_v = ((uint8_t)(v_c8 & 15u)); + if ((v_comp_h == 0u) || + (v_comp_h > 4u) || + (v_comp_v == 0u) || + (v_comp_v > 4u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; + } + self->private_impl.f_components_h[v_i] = v_comp_h; + if (self->private_impl.f_max_incl_components_h < self->private_impl.f_components_h[v_i]) { + self->private_impl.f_max_incl_components_h = self->private_impl.f_components_h[v_i]; + } + self->private_impl.f_components_v[v_i] = v_comp_v; + if (self->private_impl.f_max_incl_components_v < self->private_impl.f_components_v[v_i]) { + self->private_impl.f_max_incl_components_v = self->private_impl.f_components_v[v_i]; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if (v_c8 >= 4u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; + } + self->private_impl.f_components_tq[v_i] = v_c8; + v_j = 0u; + while (v_j < v_i) { + if (self->private_impl.f_components_c[v_j] == self->private_impl.f_components_c[v_i]) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; + } + v_j += 1u; + } + v_i += 1u; + } + if (self->private_impl.f_num_components == 1u) { + self->private_impl.f_max_incl_components_h = 1u; + self->private_impl.f_max_incl_components_v = 1u; + self->private_impl.f_components_h[0u] = 1u; + self->private_impl.f_components_v[0u] = 1u; + } else { + v_has_h24 = false; + v_has_h3 = false; + v_has_v24 = false; + v_has_v3 = false; + v_i = 0u; + while (v_i < self->private_impl.f_num_components) { + v_has_h24 = (v_has_h24 || (self->private_impl.f_components_h[v_i] == 2u) || (self->private_impl.f_components_h[v_i] == 4u)); + v_has_h3 = (v_has_h3 || (self->private_impl.f_components_h[v_i] == 3u)); + v_has_v24 = (v_has_v24 || (self->private_impl.f_components_v[v_i] == 2u) || (self->private_impl.f_components_v[v_i] == 4u)); + v_has_v3 = (v_has_v3 || (self->private_impl.f_components_v[v_i] == 3u)); + v_i += 1u; + } + if ((v_has_h24 && v_has_h3) || (v_has_v24 && v_has_v3)) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_fractional_sampling); + goto exit; + } + if (self->private_impl.f_num_components == 4u) { + self->private_impl.f_is_rgb_or_cmyk = (self->private_impl.f_is_adobe < 2u); + } else { + if (self->private_impl.f_is_jfif) { + self->private_impl.f_is_rgb_or_cmyk = false; + } else if (self->private_impl.f_is_adobe > 0u) { + self->private_impl.f_is_rgb_or_cmyk = (self->private_impl.f_is_adobe == 1u); + } else { + self->private_impl.f_is_rgb_or_cmyk = ((self->private_impl.f_components_c[0u] == 82u) && (self->private_impl.f_components_c[1u] == 71u) && (self->private_impl.f_components_c[2u] == 66u)); + } + } + } + self->private_impl.f_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, 1u, self->private_impl.f_max_incl_components_h); + self->private_impl.f_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, 1u, self->private_impl.f_max_incl_components_v); + v_upper_bound = 65544u; + self->private_impl.f_components_workbuf_widths[0u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_width_in_mcus * ((uint32_t)(self->private_impl.f_components_h[0u])))); + self->private_impl.f_components_workbuf_widths[1u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_width_in_mcus * ((uint32_t)(self->private_impl.f_components_h[1u])))); + self->private_impl.f_components_workbuf_widths[2u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_width_in_mcus * ((uint32_t)(self->private_impl.f_components_h[2u])))); + self->private_impl.f_components_workbuf_widths[3u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_width_in_mcus * ((uint32_t)(self->private_impl.f_components_h[3u])))); + self->private_impl.f_components_workbuf_heights[0u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_height_in_mcus * ((uint32_t)(self->private_impl.f_components_v[0u])))); + self->private_impl.f_components_workbuf_heights[1u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_height_in_mcus * ((uint32_t)(self->private_impl.f_components_v[1u])))); + self->private_impl.f_components_workbuf_heights[2u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_height_in_mcus * ((uint32_t)(self->private_impl.f_components_v[2u])))); + self->private_impl.f_components_workbuf_heights[3u] = wuffs_base__u32__min(v_upper_bound, (8u * self->private_impl.f_height_in_mcus * ((uint32_t)(self->private_impl.f_components_v[3u])))); + v_wh0 = (((uint64_t)(self->private_impl.f_components_workbuf_widths[0u])) * ((uint64_t)(self->private_impl.f_components_workbuf_heights[0u]))); + v_wh1 = (((uint64_t)(self->private_impl.f_components_workbuf_widths[1u])) * ((uint64_t)(self->private_impl.f_components_workbuf_heights[1u]))); + v_wh2 = (((uint64_t)(self->private_impl.f_components_workbuf_widths[2u])) * ((uint64_t)(self->private_impl.f_components_workbuf_heights[2u]))); + v_wh3 = (((uint64_t)(self->private_impl.f_components_workbuf_widths[3u])) * ((uint64_t)(self->private_impl.f_components_workbuf_heights[3u]))); + v_progressive = 0u; + if (self->private_impl.f_sof_marker >= 194u) { + v_progressive = 2u; + v_i = 0u; + while (v_i < 4u) { + v_j = 0u; + while (v_j < 10u) { + self->private_impl.f_block_smoothing_lowest_scan_al[v_i][v_j] = 16u; + v_j += 1u; + } + v_i += 1u; + } + } + self->private_impl.f_components_workbuf_offsets[0u] = 0u; + self->private_impl.f_components_workbuf_offsets[1u] = (self->private_impl.f_components_workbuf_offsets[0u] + v_wh0); + self->private_impl.f_components_workbuf_offsets[2u] = (self->private_impl.f_components_workbuf_offsets[1u] + v_wh1); + self->private_impl.f_components_workbuf_offsets[3u] = (self->private_impl.f_components_workbuf_offsets[2u] + v_wh2); + self->private_impl.f_components_workbuf_offsets[4u] = (self->private_impl.f_components_workbuf_offsets[3u] + v_wh3); + self->private_impl.f_components_workbuf_offsets[5u] = (self->private_impl.f_components_workbuf_offsets[4u] + (v_wh0 * v_progressive)); + self->private_impl.f_components_workbuf_offsets[6u] = (self->private_impl.f_components_workbuf_offsets[5u] + (v_wh1 * v_progressive)); + self->private_impl.f_components_workbuf_offsets[7u] = (self->private_impl.f_components_workbuf_offsets[6u] + (v_wh2 * v_progressive)); + self->private_impl.f_components_workbuf_offsets[8u] = (self->private_impl.f_components_workbuf_offsets[7u] + (v_wh3 * v_progressive)); + + goto ok; + ok: + self->private_impl.p_decode_sof = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_sof = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_sof.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.quantize_dimension + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__quantize_dimension( + const wuffs_jpeg__decoder* self, + uint32_t a_width, + uint8_t a_h, + uint8_t a_max_incl_h) { + uint32_t v_ratio = 0; + + v_ratio = 0u; + if (a_h > 0u) { + v_ratio = ((uint32_t)(((uint8_t)(a_max_incl_h / a_h)))); + } + if (v_ratio == 1u) { + return ((a_width + 7u) / 8u); + } else if (v_ratio == 2u) { + return ((a_width + 15u) / 16u); + } else if (v_ratio == 3u) { + return ((a_width + 23u) / 24u); + } + return ((a_width + 31u) / 32u); +} + +// -------- func jpeg.decoder.decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_jpeg__decoder__decode_frame_config( + wuffs_jpeg__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_jpeg__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_jpeg__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func jpeg.decoder.do_decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__do_decode_frame_config( + wuffs_jpeg__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_jpeg__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + self->private_impl.f_frame_config_io_position, + 0u, + true, + false, + 4278190080u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.decode_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_jpeg__decoder__decode_frame( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_ddf_status = wuffs_base__make_status(NULL); + wuffs_base__status v_swizzle_status = wuffs_base__make_status(NULL); + uint32_t v_scan_count = 0; + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + v_scan_count = self->private_impl.f_scan_count; + { + wuffs_base__status t_0 = wuffs_jpeg__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_ddf_status = t_0; + } + if ((v_ddf_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + v_ddf_status = wuffs_base__make_status(wuffs_jpeg__error__truncated_input); + } + if ( ! self->private_impl.f_swizzle_immediately && (wuffs_base__status__is_error(&v_ddf_status) || (v_scan_count < self->private_impl.f_scan_count))) { + if (self->private_impl.f_sof_marker >= 194u) { + wuffs_jpeg__decoder__apply_progressive_idct(self, a_workbuf); + } + if (self->private_impl.f_num_components == 1u) { + v_swizzle_status = wuffs_jpeg__decoder__swizzle_gray(self, + a_dst, + a_workbuf, + 0u, + 4294967295u, + 0u, + 4294967295u, + ((uint64_t)(self->private_impl.f_components_workbuf_widths[0u]))); + } else { + v_swizzle_status = wuffs_jpeg__decoder__swizzle_colorful(self, + a_dst, + a_workbuf, + 0u, + 4294967295u, + 0u, + 4294967295u); + } + if (wuffs_base__status__is_error(&v_ddf_status)) { + status = v_ddf_status; + goto exit; + } else if (wuffs_base__status__is_error(&v_swizzle_status)) { + status = v_swizzle_status; + goto exit; + } + } + status = v_ddf_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func jpeg.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__do_decode_frame( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_pixfmt = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint8_t v_c8 = 0; + uint8_t v_marker = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + if (coro_susp_point) { + v_marker = self->private_data.s_do_decode_frame.v_marker; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_jpeg__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + v_pixfmt = 536870920u; + if (self->private_impl.f_num_components > 1u) { + v_pixfmt = 2415954056u; + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), + wuffs_base__utility__make_pixel_format(v_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + self->private_impl.f_swizzle_immediately = false; + if (self->private_impl.f_components_workbuf_offsets[8u] > ((uint64_t)(a_workbuf.len))) { + if (self->private_impl.f_sof_marker >= 194u) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + self->private_impl.f_swizzle_immediately = self->private_impl.f_use_lower_quality; + self->private_impl.f_swizzle_immediately_status = wuffs_base__make_status(NULL); + } else if (self->private_impl.f_components_workbuf_offsets[4u] < self->private_impl.f_components_workbuf_offsets[8u]) { + wuffs_private_impl__bulk_memset(a_workbuf.ptr + self->private_impl.f_components_workbuf_offsets[4u], (self->private_impl.f_components_workbuf_offsets[8u] - self->private_impl.f_components_workbuf_offsets[4u]), 0u); + } + if (self->private_impl.f_components_workbuf_offsets[4u] <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_memset(a_workbuf.ptr, self->private_impl.f_components_workbuf_offsets[4u], 128u); + } + while (true) { + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 == 255u) { + break; + } + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (v_c8 != 255u) { + v_marker = v_c8; + break; + } + } + if (v_marker == 0u) { + continue; + } else if ((208u <= v_marker) && (v_marker <= 217u)) { + if (v_marker <= 215u) { + continue; + } + } else { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_2 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_frame.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 8) { + t_2 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } + } + self->private_impl.f_payload_length = t_2; + } + if (self->private_impl.f_payload_length < 2u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); + goto exit; + } + self->private_impl.f_payload_length -= 2u; + } + if (v_marker < 192u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); + goto exit; + } else if (v_marker < 208u) { + if (v_marker == 196u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + status = wuffs_jpeg__decoder__decode_dht(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + continue; + } else if (v_marker == 200u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); + goto exit; + } + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; + } else if (v_marker < 224u) { + if (v_marker < 217u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); + goto exit; + } else if (v_marker == 217u) { + break; + } else if (v_marker == 218u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + status = wuffs_jpeg__decoder__decode_sos(self, a_dst, a_src, a_workbuf); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + continue; + } else if (v_marker == 219u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_jpeg__decoder__decode_dqt(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + continue; + } else if (v_marker == 221u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_jpeg__decoder__decode_dri(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + continue; + } else { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); + goto exit; + } + } else if (v_marker < 240u) { + } else { + if (v_marker == 254u) { + } else { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_marker); + goto exit; + } + } + self->private_data.s_do_decode_frame.scratch = self->private_impl.f_payload_length; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame.scratch; + self->private_impl.f_payload_length = 0u; + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame.v_marker = v_marker; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.decode_dht + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_dht( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint8_t v_tc = 0; + uint8_t v_th = 0; + uint8_t v_tc4_th = 0; + uint32_t v_working_total_count = 0; + uint32_t v_total_count = 0; + uint32_t v_i = 0; + bool v_failed = false; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_dht; + if (coro_susp_point) { + v_tc4_th = self->private_data.s_decode_dht.v_tc4_th; + v_total_count = self->private_data.s_decode_dht.v_total_count; + v_i = self->private_data.s_decode_dht.v_i; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_sof_marker == 0u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + while (self->private_impl.f_payload_length > 0u) { + if (self->private_impl.f_payload_length < 17u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + self->private_impl.f_payload_length -= 17u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if ((((uint8_t)(v_c8 >> 4u)) > 1u) || (((uint8_t)(v_c8 & 15u)) > 3u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + v_tc = ((uint8_t)(v_c8 >> 4u)); + v_th = ((uint8_t)(v_c8 & 15u)); + v_tc4_th = ((uint8_t)(((uint8_t)(((uint8_t)(v_tc * 4u)) | v_th)))); + if ((self->private_impl.f_sof_marker == 192u) && (((uint8_t)(v_tc4_th & 3u)) > 1u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + v_i = 0u; + while (v_i < 16u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + self->private_data.f_dht_temp_counts[v_i] = t_1; + } + v_i += 1u; + } + v_working_total_count = 0u; + v_i = 0u; + while (v_i < 16u) { + v_working_total_count = ((v_working_total_count + ((uint32_t)(self->private_data.f_dht_temp_counts[v_i]))) & 65535u); + v_i += 1u; + } + if ((v_working_total_count <= 0u) || (256u < v_working_total_count)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + v_total_count = v_working_total_count; + if (self->private_impl.f_payload_length < v_total_count) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + self->private_impl.f_payload_length -= v_total_count; + v_i = 0u; + while (v_i < v_total_count) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] = t_2; + } + v_i += 1u; + } + while (v_i < 256u) { + self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] = 0u; + v_i += 1u; + } + if (((uint8_t)(v_tc4_th & 4u)) == 0u) { + v_i = 0u; + while (v_i < v_total_count) { + if (self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] > 15u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + v_i += 1u; + } + } + v_failed = wuffs_jpeg__decoder__calculate_huff_tables(self, v_tc4_th, v_total_count); + if (v_failed) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + self->private_impl.f_seen_dht[v_tc4_th] = true; + } + + goto ok; + ok: + self->private_impl.p_decode_dht = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_dht = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_dht.v_tc4_th = v_tc4_th; + self->private_data.s_decode_dht.v_total_count = v_total_count; + self->private_data.s_decode_dht.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.calculate_huff_tables + +WUFFS_BASE__GENERATED_C_CODE +static bool +wuffs_jpeg__decoder__calculate_huff_tables( + wuffs_jpeg__decoder* self, + uint8_t a_tc4_th, + uint32_t a_total_count) { + uint32_t v_i = 0; + uint8_t v_j = 0; + uint8_t v_k = 0; + uint32_t v_bit_length_minus_one = 0; + uint8_t v_bit_length = 0; + uint32_t v_bit_string = 0; + uint32_t v_slow = 0; + uint8_t v_prefix = 0; + uint16_t v_fast = 0; + uint32_t v_reps = 0; + + v_i = 0u; + v_k = 0u; + v_bit_length_minus_one = 0u; + while (v_i < a_total_count) { + while (v_k >= self->private_data.f_dht_temp_counts[v_bit_length_minus_one]) { + v_k = 0u; + v_bit_length_minus_one = ((v_bit_length_minus_one + 1u) & 15u); + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_k += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_data.f_dht_temp_bit_lengths[v_i] = ((uint8_t)((v_bit_length_minus_one + 1u))); + v_i += 1u; + } + v_bit_length = 0u; + v_bit_string = 0u; + v_i = 0u; + while (v_i < a_total_count) { + while (v_bit_length < self->private_data.f_dht_temp_bit_lengths[v_i]) { + if (v_bit_length >= 16u) { + return true; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_bit_length += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bit_string <<= 1u; + } + self->private_data.f_dht_temp_bit_strings[v_i] = ((uint16_t)(v_bit_string)); + v_bit_string += 1u; + if ((v_bit_string >> v_bit_length) > 0u) { + return true; + } + v_i += 1u; + } + v_k = 0u; + v_bit_length_minus_one = 0u; + while (true) { + if (self->private_data.f_dht_temp_counts[v_bit_length_minus_one] == 0u) { + self->private_impl.f_huff_tables_slow[a_tc4_th][v_bit_length_minus_one] = 0u; + } else { + v_slow = (255u & ((uint32_t)(((uint32_t)(v_k)) - ((uint32_t)(self->private_data.f_dht_temp_bit_strings[v_k]))))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_k += self->private_data.f_dht_temp_counts[v_bit_length_minus_one]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_impl.f_huff_tables_slow[a_tc4_th][v_bit_length_minus_one] = (v_slow | ((((uint32_t)(self->private_data.f_dht_temp_bit_strings[((uint8_t)(v_k - 1u))])) + 1u) << 8u)); + } + v_bit_length_minus_one = ((v_bit_length_minus_one + 1u) & 15u); + if (v_bit_length_minus_one == 0u) { + break; + } + } + v_i = 0u; + while (v_i < 256u) { + self->private_impl.f_huff_tables_fast[a_tc4_th][v_i] = 65535u; + v_i += 1u; + } + v_j = 0u; + v_bit_length_minus_one = 0u; + while (v_bit_length_minus_one < 8u) { + v_k = 0u; + while (v_k < self->private_data.f_dht_temp_counts[v_bit_length_minus_one]) { + v_prefix = ((uint8_t)((((uint32_t)(self->private_data.f_dht_temp_bit_strings[v_j])) << (7u - v_bit_length_minus_one)))); + v_fast = ((uint16_t)(((((uint32_t)((v_bit_length_minus_one + 1u))) << 8u) | ((uint32_t)(self->private_impl.f_huff_tables_symbols[a_tc4_th][v_j]))))); + v_reps = (((uint32_t)(1u)) << (7u - v_bit_length_minus_one)); + while (v_reps > 0u) { + self->private_impl.f_huff_tables_fast[a_tc4_th][v_prefix] = v_fast; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_prefix += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_reps -= 1u; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_k += 1u; + v_j += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + v_bit_length_minus_one += 1u; + } + return false; +} + +// -------- func jpeg.decoder.decode_sos + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_sos( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_my = 0; + uint32_t v_mx = 0; + uint32_t v_decode_mcu_result = 0; + uint32_t v_bitstream_length = 0; + + uint32_t coro_susp_point = self->private_impl.p_decode_sos; + if (coro_susp_point) { + v_my = self->private_data.s_decode_sos.v_my; + v_mx = self->private_data.s_decode_sos.v_mx; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_scan_count >= 32u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_scan_count); + goto exit; + } else if ((self->private_impl.f_scan_count > 0u) && ! self->private_impl.f_expect_multiple_scans) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_scan_count); + goto exit; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_jpeg__decoder__prepare_scan(self, a_src); + if (status.repr) { + goto suspend; + } + self->private_impl.f_next_restart_marker = 0u; + self->private_impl.f_mcu_previous_dc_values[0u] = 0u; + self->private_impl.f_mcu_previous_dc_values[1u] = 0u; + self->private_impl.f_mcu_previous_dc_values[2u] = 0u; + self->private_impl.f_mcu_previous_dc_values[3u] = 0u; + self->private_impl.f_restarts_remaining = self->private_impl.f_restart_interval; + self->private_impl.f_eob_run = 0u; + self->private_impl.f_bitstream_bits = 0u; + self->private_impl.f_bitstream_n_bits = 0u; + self->private_impl.f_bitstream_ri = 0u; + self->private_impl.f_bitstream_wi = 0u; + self->private_impl.f_bitstream_padding = 12345u; + wuffs_jpeg__decoder__fill_bitstream(self, a_src); + v_my = 0u; + while (v_my < self->private_impl.f_scan_height_in_mcus) { + v_mx = 0u; + while (v_mx < self->private_impl.f_scan_width_in_mcus) { + self->private_impl.f_mcu_current_block = 0u; + self->private_impl.f_mcu_zig_index = ((uint32_t)(self->private_impl.f_scan_ss)); + if (self->private_impl.f_sof_marker >= 194u) { + wuffs_jpeg__decoder__load_mcu_blocks(self, v_mx, v_my, a_workbuf); + } + while (true) { + v_decode_mcu_result = wuffs_jpeg__decoder__decode_mcu(self, + a_dst, + a_workbuf, + v_mx, + v_my); + if (v_decode_mcu_result == 0u) { + break; + } else if (v_decode_mcu_result == 1u) { + } else if (v_decode_mcu_result == 2u) { + status = wuffs_base__make_status(wuffs_jpeg__error__internal_error_inconsistent_decoder_state); + goto exit; + } else { + status = self->private_impl.f_swizzle_immediately_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + while (true) { + v_bitstream_length = ((uint32_t)(self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri)); + wuffs_jpeg__decoder__fill_bitstream(self, a_src); + if (v_bitstream_length < ((uint32_t)(self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri))) { + break; + } else if (self->private_impl.f_bitstream_padding == 0u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } else if ((a_src && a_src->meta.closed) && ! self->private_impl.f_bitstream_is_closed) { + if (self->private_impl.f_bitstream_wi < 1024u) { + wuffs_private_impl__bulk_memset(&self->private_data.f_bitstream_buffer[self->private_impl.f_bitstream_wi], 264u, 0u); + self->private_impl.f_bitstream_wi += 264u; + self->private_impl.f_bitstream_is_closed = true; + } + break; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + } + if (self->private_impl.f_sof_marker >= 194u) { + wuffs_jpeg__decoder__save_mcu_blocks(self, v_mx, v_my, a_workbuf); + } + if (self->private_impl.f_restarts_remaining > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_restarts_remaining -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + if (self->private_impl.f_restarts_remaining == 0u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_jpeg__decoder__skip_past_the_next_restart_marker(self, a_src); + if (status.repr) { + goto suspend; + } + self->private_impl.f_mcu_previous_dc_values[0u] = 0u; + self->private_impl.f_mcu_previous_dc_values[1u] = 0u; + self->private_impl.f_mcu_previous_dc_values[2u] = 0u; + self->private_impl.f_mcu_previous_dc_values[3u] = 0u; + self->private_impl.f_restarts_remaining = self->private_impl.f_restart_interval; + self->private_impl.f_eob_run = 0u; + self->private_impl.f_bitstream_bits = 0u; + self->private_impl.f_bitstream_n_bits = 0u; + self->private_impl.f_bitstream_ri = 0u; + self->private_impl.f_bitstream_wi = 0u; + self->private_impl.f_bitstream_padding = 12345u; + } + } + v_mx += 1u; + } + v_my += 1u; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_scan_count, 1u); + + ok: + self->private_impl.p_decode_sos = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_sos = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_sos.v_my = v_my; + self->private_data.s_decode_sos.v_mx = v_mx; + + goto exit; + exit: + return status; +} + +// -------- func jpeg.decoder.prepare_scan + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__prepare_scan( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_i = 0; + uint32_t v_j = 0; + uint32_t v_j_max_incl = 0; + bool v_failed = false; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_prepare_scan; + if (coro_susp_point) { + v_i = self->private_data.s_prepare_scan.v_i; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if ((self->private_impl.f_payload_length < 6u) || (self->private_impl.f_payload_length > 12u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if ((v_c8 < 1u) || (v_c8 > 4u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_num_components = ((uint32_t)(v_c8)); + if ((self->private_impl.f_scan_num_components > self->private_impl.f_num_components) || (self->private_impl.f_payload_length != (4u + (2u * self->private_impl.f_scan_num_components)))) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_payload_length = 0u; + v_i = 0u; + while (v_i < self->private_impl.f_scan_num_components) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + v_j = 0u; + while (true) { + if (v_j >= self->private_impl.f_num_components) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + if (v_c8 == self->private_impl.f_components_c[v_j]) { + if ( ! self->private_impl.f_seen_dqt[self->private_impl.f_components_tq[v_j]]) { + status = wuffs_base__make_status(wuffs_jpeg__error__missing_quantization_table); + goto exit; + } + self->private_impl.f_scan_comps_cselector[v_i] = ((uint8_t)(v_j)); + break; + } + v_j += 1u; + } + v_j = 0u; + while (v_j < v_i) { + if (self->private_impl.f_scan_comps_cselector[v_i] == self->private_impl.f_scan_comps_cselector[v_j]) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + v_j += 1u; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if ((((uint8_t)(v_c8 >> 4u)) > 3u) || (((uint8_t)(v_c8 & 15u)) > 3u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_comps_td[v_i] = ((uint8_t)(v_c8 >> 4u)); + self->private_impl.f_scan_comps_ta[v_i] = ((uint8_t)(v_c8 & 15u)); + if (self->private_impl.f_sof_marker == 192u) { + if ((self->private_impl.f_scan_comps_td[v_i] > 1u) || (self->private_impl.f_scan_comps_ta[v_i] > 1u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + } + v_i += 1u; + } + if (self->private_impl.f_scan_count == 0u) { + self->private_impl.f_expect_multiple_scans = ((self->private_impl.f_sof_marker >= 194u) || (self->private_impl.f_scan_num_components < self->private_impl.f_num_components)); + } + if (self->private_impl.f_sof_marker < 194u) { + self->private_data.s_prepare_scan.scratch = 3u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (self->private_data.s_prepare_scan.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_prepare_scan.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_prepare_scan.scratch; + self->private_impl.f_scan_ss = 0u; + self->private_impl.f_scan_se = 63u; + self->private_impl.f_scan_ah = 0u; + self->private_impl.f_scan_al = 0u; + } else { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if (v_c8 > 63u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_ss = v_c8; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if ((v_c8 > 63u) || (v_c8 < self->private_impl.f_scan_ss)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_se = v_c8; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + if ((((uint8_t)(v_c8 >> 4u)) > 14u) || (((uint8_t)(v_c8 & 15u)) > 13u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_ah = ((uint8_t)(v_c8 >> 4u)); + self->private_impl.f_scan_al = ((uint8_t)(v_c8 & 15u)); + if (self->private_impl.f_scan_ah > 0u) { + if (((uint8_t)(self->private_impl.f_scan_ah - 1u)) != self->private_impl.f_scan_al) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + } + if (self->private_impl.f_scan_ss == 0u) { + if (self->private_impl.f_scan_se != 0u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } else if (self->private_impl.f_scan_ah == 0u) { + self->private_impl.choosy_decode_mcu = ( + &wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits); + } else { + self->private_impl.choosy_decode_mcu = ( + &wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit); + } + } else { + if (self->private_impl.f_scan_num_components != 1u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } else if (self->private_impl.f_scan_ah == 0u) { + self->private_impl.choosy_decode_mcu = ( + &wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits); + } else { + self->private_impl.choosy_decode_mcu = ( + &wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit); + } + } + } + v_i = 0u; + while (v_i < self->private_impl.f_scan_num_components) { + if ((self->private_impl.f_scan_ss == 0u) && ! self->private_impl.f_seen_dht[((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_i]))]) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_jpeg__decoder__use_default_huffman_table(self, ((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_i]))); + if (status.repr) { + goto suspend; + } + } + if ((self->private_impl.f_scan_se != 0u) && ! self->private_impl.f_seen_dht[((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_i]))]) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_jpeg__decoder__use_default_huffman_table(self, ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_i]))); + if (status.repr) { + goto suspend; + } + } + v_j = ((uint32_t)(self->private_impl.f_scan_ss)); + v_j_max_incl = ((uint32_t)(wuffs_base__u8__min(self->private_impl.f_scan_se, 9u))); + while (v_j <= v_j_max_incl) { + self->private_impl.f_block_smoothing_lowest_scan_al[self->private_impl.f_scan_comps_cselector[v_i]][v_j] = self->private_impl.f_scan_al; + v_j += 1u; + } + v_i += 1u; + } + if (self->private_impl.f_scan_num_components == 1u) { + wuffs_jpeg__decoder__calculate_single_component_scan_fields(self); + } else { + v_failed = wuffs_jpeg__decoder__calculate_multiple_component_scan_fields(self); + if (v_failed) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + } + + goto ok; + ok: + self->private_impl.p_prepare_scan = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_prepare_scan = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_prepare_scan.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.use_default_huffman_table + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__use_default_huffman_table( + wuffs_jpeg__decoder* self, + uint8_t a_tc4_th) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__slice_u8 v_data = {0}; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + if (a_tc4_th == 0u) { + v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_LUMA), 29); + } else if (a_tc4_th == 1u) { + v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_CHROMA), 29); + } else if (a_tc4_th == 4u) { + v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_LUMA), 179); + } else if (a_tc4_th == 5u) { + v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_CHROMA), 179); + } else { + status = wuffs_base__make_status(wuffs_jpeg__error__missing_huffman_table); + goto exit; + } + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + v_data, + 0u); + self->private_impl.f_payload_length = ((uint32_t)((((uint64_t)(v_data.len)) & 65535u))); + { + wuffs_base__status t_0 = wuffs_jpeg__decoder__decode_dht(self, v_r); + v_status = t_0; + } + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; + } + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + + ok: + goto exit; + exit: + return status; +} + +// -------- func jpeg.decoder.calculate_single_component_scan_fields + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__calculate_single_component_scan_fields( + wuffs_jpeg__decoder* self) { + uint8_t v_csel = 0; + + self->private_impl.f_scan_comps_bx_offset[0u] = 0u; + self->private_impl.f_scan_comps_by_offset[0u] = 0u; + self->private_impl.f_mcu_num_blocks = 1u; + self->private_impl.f_mcu_blocks_sselector[0u] = 0u; + v_csel = self->private_impl.f_scan_comps_cselector[0u]; + self->private_impl.f_mcu_blocks_offset[0u] = self->private_impl.f_components_workbuf_offsets[v_csel]; + self->private_impl.f_mcu_blocks_mx_mul[0u] = 8u; + self->private_impl.f_mcu_blocks_my_mul[0u] = (8u * self->private_impl.f_components_workbuf_widths[v_csel]); + self->private_impl.f_mcu_blocks_dc_hselector[0u] = ((uint8_t)(0u | self->private_impl.f_scan_comps_td[0u])); + self->private_impl.f_mcu_blocks_ac_hselector[0u] = ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[0u])); + self->private_impl.f_scan_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, self->private_impl.f_components_h[v_csel], self->private_impl.f_max_incl_components_h); + self->private_impl.f_scan_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, self->private_impl.f_components_v[v_csel], self->private_impl.f_max_incl_components_v); + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.calculate_multiple_component_scan_fields + +WUFFS_BASE__GENERATED_C_CODE +static bool +wuffs_jpeg__decoder__calculate_multiple_component_scan_fields( + wuffs_jpeg__decoder* self) { + uint32_t v_i = 0; + uint32_t v_h = 0; + uint32_t v_v = 0; + uint32_t v_hv = 0; + uint32_t v_total_hv = 0; + uint32_t v_b = 0; + uint32_t v_bx_offset = 0; + uint32_t v_by_offset = 0; + uint32_t v_sibo = 0; + uint8_t v_ssel = 0; + uint8_t v_csel = 0; + + v_total_hv = 0u; + v_i = 0u; + v_b = 0u; + v_bx_offset = 0u; + v_by_offset = 0u; + while (v_i < self->private_impl.f_scan_num_components) { + v_h = ((uint32_t)(self->private_impl.f_components_h[self->private_impl.f_scan_comps_cselector[v_i]])); + v_v = ((uint32_t)(self->private_impl.f_components_v[self->private_impl.f_scan_comps_cselector[v_i]])); + v_hv = (((uint32_t)(self->private_impl.f_components_h[self->private_impl.f_scan_comps_cselector[v_i]])) * ((uint32_t)(self->private_impl.f_components_v[self->private_impl.f_scan_comps_cselector[v_i]]))); + self->private_impl.f_swizzle_immediately_c_offsets[v_i] = ((uint32_t)(64u * v_total_hv)); + v_total_hv += v_hv; + while (v_hv > 0u) { + self->private_impl.f_scan_comps_bx_offset[(v_b & 15u)] = ((uint8_t)((v_bx_offset & 3u))); + self->private_impl.f_scan_comps_by_offset[(v_b & 15u)] = ((uint8_t)((v_by_offset & 3u))); + self->private_impl.f_mcu_blocks_sselector[(v_b & 15u)] = ((uint8_t)(v_i)); + v_b += 1u; + v_bx_offset += 1u; + if (v_bx_offset == v_h) { + v_bx_offset = 0u; + v_by_offset += 1u; + if (v_by_offset == v_v) { + v_by_offset = 0u; + } + } + v_hv -= 1u; + } + v_i += 1u; + } + if (v_total_hv > 10u) { + return true; + } + self->private_impl.f_mcu_num_blocks = v_total_hv; + self->private_impl.f_swizzle_immediately_c_offsets[self->private_impl.f_scan_num_components] = ((uint32_t)(64u * v_total_hv)); + v_b = 0u; + while (v_b < self->private_impl.f_mcu_num_blocks) { + v_ssel = self->private_impl.f_mcu_blocks_sselector[v_b]; + v_csel = self->private_impl.f_scan_comps_cselector[v_ssel]; + self->private_impl.f_mcu_blocks_offset[v_b] = (self->private_impl.f_components_workbuf_offsets[v_csel] + (8u * ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) + (8u * ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b])) * ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])))); + self->private_impl.f_mcu_blocks_mx_mul[v_b] = (8u * ((uint32_t)(self->private_impl.f_components_h[v_csel]))); + self->private_impl.f_mcu_blocks_my_mul[v_b] = (8u * ((uint32_t)(self->private_impl.f_components_v[v_csel])) * self->private_impl.f_components_workbuf_widths[v_csel]); + self->private_impl.f_mcu_blocks_dc_hselector[v_b] = ((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_ssel])); + self->private_impl.f_mcu_blocks_ac_hselector[v_b] = ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_ssel])); + v_sibo = ((uint32_t)(self->private_impl.f_swizzle_immediately_c_offsets[v_csel] + ((8u * ((uint32_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) + (64u * ((uint32_t)(self->private_impl.f_scan_comps_by_offset[v_b])) * ((uint32_t)(self->private_impl.f_components_h[v_csel])))))); + self->private_impl.f_swizzle_immediately_b_offsets[v_b] = wuffs_base__u32__min(v_sibo, 576u); + v_b += 1u; + } + self->private_impl.f_scan_width_in_mcus = self->private_impl.f_width_in_mcus; + self->private_impl.f_scan_height_in_mcus = self->private_impl.f_height_in_mcus; + return false; +} + +// -------- func jpeg.decoder.fill_bitstream + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__fill_bitstream( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + uint32_t v_wi = 0; + uint8_t v_c8 = 0; + uint32_t v_new_wi = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + if (self->private_impl.f_bitstream_ri <= 0u) { + } else if (self->private_impl.f_bitstream_ri >= self->private_impl.f_bitstream_wi) { + self->private_impl.f_bitstream_ri = 0u; + self->private_impl.f_bitstream_wi = 0u; + } else { + v_wi = (self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri); + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_bitstream_buffer, 2048), wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi)); + self->private_impl.f_bitstream_ri = 0u; + self->private_impl.f_bitstream_wi = v_wi; + } + v_wi = self->private_impl.f_bitstream_wi; + while ((v_wi < 2048u) && (((uint64_t)(io2_a_src - iop_a_src)) > 0u)) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 < 255u) { + self->private_data.f_bitstream_buffer[v_wi] = v_c8; + v_wi += 1u; + iop_a_src += 1u; + continue; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 1u) { + break; + } else if (((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)) > 0u) { + break; + } else { + self->private_data.f_bitstream_buffer[v_wi] = 255u; + v_wi += 1u; + iop_a_src += 2u; + } + } + if (((uint64_t)(io2_a_src - iop_a_src)) > 1u) { + if ((wuffs_base__peek_u8be__no_bounds_check(iop_a_src) >= 255u) && (((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)) > 0u)) { + v_new_wi = (wuffs_base__u32__min(v_wi, 1784u) + 264u); + v_new_wi = wuffs_base__u32__min(v_new_wi, (v_wi + self->private_impl.f_bitstream_padding)); + if (v_wi < v_new_wi) { + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_bitstream_padding, (v_new_wi - v_wi)); + wuffs_private_impl__bulk_memset(&self->private_data.f_bitstream_buffer[v_wi], (v_new_wi - v_wi), 0u); + v_wi = v_new_wi; + } + } + } + self->private_impl.f_bitstream_wi = v_wi; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.load_mcu_blocks_for_single_component + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks_for_single_component( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_csel) { + return (*self->private_impl.choosy_load_mcu_blocks_for_single_component)(self, a_mx, a_my, a_workbuf, a_csel); +} + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_csel) { + uint64_t v_stride16 = 0; + uint64_t v_offset = 0; + + v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[a_csel] * 16u))); + v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(a_mx)) * 128u) + (((uint64_t)(a_my)) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.load_mcu_blocks + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf) { + uint32_t v_b = 0; + uint8_t v_csel = 0; + uint64_t v_h = 0; + uint64_t v_v = 0; + uint64_t v_stride16 = 0; + uint64_t v_offset = 0; + + v_h = 1u; + v_v = 1u; + v_b = 0u; + while (v_b < self->private_impl.f_mcu_num_blocks) { + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_b]]; + if (self->private_impl.f_scan_num_components > 1u) { + v_h = ((uint64_t)(self->private_impl.f_components_h[v_csel])); + v_v = ((uint64_t)(self->private_impl.f_components_v[v_csel])); + } + v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[v_csel] * 16u))); + v_offset = (self->private_impl.f_components_workbuf_offsets[((uint8_t)(v_csel | 4u))] + (((v_h * ((uint64_t)(a_mx))) + ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) * 128u) + (((v_v * ((uint64_t)(a_my))) + ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b]))) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[v_b], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + v_b += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.save_mcu_blocks + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__save_mcu_blocks( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf) { + uint32_t v_b = 0; + uint8_t v_csel = 0; + uint64_t v_h = 0; + uint64_t v_v = 0; + uint64_t v_stride16 = 0; + uint64_t v_offset = 0; + + v_h = 1u; + v_v = 1u; + v_b = 0u; + while (v_b < self->private_impl.f_mcu_num_blocks) { + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_b]]; + if (self->private_impl.f_scan_num_components > 1u) { + v_h = ((uint64_t)(self->private_impl.f_components_h[v_csel])); + v_v = ((uint64_t)(self->private_impl.f_components_v[v_csel])); + } + v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[v_csel] * 16u))); + v_offset = (self->private_impl.f_components_workbuf_offsets[((uint8_t)(v_csel | 4u))] + (((v_h * ((uint64_t)(a_mx))) + ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) * 128u) + (((v_v * ((uint64_t)(a_my))) + ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b]))) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_save_host_endian(&self->private_data.f_mcu_blocks[v_b], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + v_b += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.skip_past_the_next_restart_marker + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__skip_past_the_next_restart_marker( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_skip_past_the_next_restart_marker; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } else if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) < 255u) { + iop_a_src += 1u; + continue; + } + v_c8 = ((uint8_t)(((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)))); + if (v_c8 < 192u) { + iop_a_src += 2u; + continue; + } else if ((v_c8 < 208u) || (215u < v_c8)) { + break; + } + v_c8 &= 7u; + if ((self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c8 + 1u)) & 7u))) || (self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c8 + 2u)) & 7u)))) { + break; + } else if ((self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c8 + 7u)) & 7u))) || (self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c8 + 6u)) & 7u)))) { + iop_a_src += 2u; + continue; + } else { + iop_a_src += 2u; + break; + } + } + self->private_impl.f_next_restart_marker = ((uint8_t)(((uint8_t)(self->private_impl.f_next_restart_marker + 1u)) & 7u)); + + ok: + self->private_impl.p_skip_past_the_next_restart_marker = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_skip_past_the_next_restart_marker = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.apply_progressive_idct + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__apply_progressive_idct( + wuffs_jpeg__decoder* self, + wuffs_base__slice_u8 a_workbuf) { + uint32_t v_csel = 0; + bool v_block_smoothing_applicable = false; + uint32_t v_scan_width_in_mcus = 0; + uint32_t v_scan_height_in_mcus = 0; + uint32_t v_mcu_blocks_mx_mul_0 = 0; + uint32_t v_mcu_blocks_my_mul_0 = 0; + uint32_t v_my = 0; + uint32_t v_mx = 0; + uint64_t v_stride = 0; + uint64_t v_offset = 0; + uint8_t v_stashed_mcu_blocks_0[128] = {0}; + + wuffs_private_impl__bulk_save_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__make_slice_u8(v_stashed_mcu_blocks_0, 128)); + v_block_smoothing_applicable = true; + v_csel = 0u; + while (v_csel < self->private_impl.f_num_components) { + if ((self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][0u] >= 16u) || wuffs_jpeg__decoder__top_left_quants_has_zero(self, ((uint32_t)(self->private_impl.f_components_tq[v_csel])))) { + v_block_smoothing_applicable = false; + } + v_csel += 1u; + } + v_csel = 0u; + while (v_csel < self->private_impl.f_num_components) { + v_scan_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, self->private_impl.f_components_h[v_csel], self->private_impl.f_max_incl_components_h); + v_scan_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, self->private_impl.f_components_v[v_csel], self->private_impl.f_max_incl_components_v); + v_mcu_blocks_mx_mul_0 = 8u; + v_mcu_blocks_my_mul_0 = (8u * self->private_impl.f_components_workbuf_widths[v_csel]); + if (v_block_smoothing_applicable && (0u != (self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][1u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][2u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][3u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][4u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][5u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][6u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][8u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][8u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][9u]))) { + self->private_impl.choosy_load_mcu_blocks_for_single_component = ( + &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth); + self->private_impl.f_block_smoothing_mx_max_incl = wuffs_base__u32__sat_sub(v_scan_width_in_mcus, 1u); + self->private_impl.f_block_smoothing_my_max_incl = wuffs_base__u32__sat_sub(v_scan_height_in_mcus, 1u); + } else { + self->private_impl.choosy_load_mcu_blocks_for_single_component = ( + &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default); + } + v_my = 0u; + while (v_my < v_scan_height_in_mcus) { + v_mx = 0u; + while (v_mx < v_scan_width_in_mcus) { + wuffs_jpeg__decoder__load_mcu_blocks_for_single_component(self, + v_mx, + v_my, + a_workbuf, + v_csel); + v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])); + v_offset = (self->private_impl.f_components_workbuf_offsets[v_csel] + (((uint64_t)(v_mcu_blocks_mx_mul_0)) * ((uint64_t)(v_mx))) + (((uint64_t)(v_mcu_blocks_my_mul_0)) * ((uint64_t)(v_my)))); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_jpeg__decoder__decode_idct(self, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); + } + v_mx += 1u; + } + v_my += 1u; + } + v_csel += 1u; + } + wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__make_slice_u8(v_stashed_mcu_blocks_0, 128)); + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.swizzle_gray + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__swizzle_gray( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_x0, + uint32_t a_x1, + uint32_t a_y0, + uint32_t a_y1, + uint64_t a_stride) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_x0 = 0; + uint64_t v_x1 = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint32_t v_y = 0; + uint32_t v_y1 = 0; + + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_x0 = ((uint64_t)((v_dst_bytes_per_pixel * wuffs_base__u32__min(a_x0, self->private_impl.f_width)))); + v_x1 = ((uint64_t)((v_dst_bytes_per_pixel * wuffs_base__u32__min(a_x1, self->private_impl.f_width)))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_y = a_y0; + v_y1 = wuffs_base__u32__min(a_y1, self->private_impl.f_height); + while (v_y < v_y1) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (v_x1 < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_x1); + } + if (v_x0 < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_x0); + } else { + v_dst = wuffs_base__utility__empty_slice_u8(); + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), a_workbuf); + if (a_stride <= ((uint64_t)(a_workbuf.len))) { + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, a_stride); + } else { + a_workbuf = wuffs_base__utility__empty_slice_u8(); + } + v_y += 1u; + } + return wuffs_base__make_status(NULL); +} + +// -------- func jpeg.decoder.swizzle_colorful + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__swizzle_colorful( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_x0, + uint32_t a_x1, + uint32_t a_y0, + uint32_t a_y1) { + uint64_t v_i = 0; + uint64_t v_j = 0; + wuffs_base__slice_u8 v_src0 = {0}; + wuffs_base__slice_u8 v_src1 = {0}; + wuffs_base__slice_u8 v_src2 = {0}; + wuffs_base__slice_u8 v_src3 = {0}; + uint32_t v_width0 = 0; + uint32_t v_width1 = 0; + uint32_t v_width2 = 0; + uint32_t v_width3 = 0; + uint32_t v_height0 = 0; + uint32_t v_height1 = 0; + uint32_t v_height2 = 0; + uint32_t v_height3 = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + if (self->private_impl.f_swizzle_immediately) { + v_i = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[0u])); + v_j = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[1u])); + if ((v_i <= v_j) && (v_j <= 640u)) { + v_src0 = wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, v_i, v_j); + v_width0 = (8u * ((uint32_t)(self->private_impl.f_components_h[0u]))); + v_height0 = (8u * ((uint32_t)(self->private_impl.f_components_v[0u]))); + } + v_i = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[1u])); + v_j = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[2u])); + if ((v_i <= v_j) && (v_j <= 640u)) { + v_src1 = wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, v_i, v_j); + v_width1 = (8u * ((uint32_t)(self->private_impl.f_components_h[1u]))); + v_height1 = (8u * ((uint32_t)(self->private_impl.f_components_v[1u]))); + } + v_i = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[2u])); + v_j = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[3u])); + if ((v_i <= v_j) && (v_j <= 640u)) { + v_src2 = wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, v_i, v_j); + v_width2 = (8u * ((uint32_t)(self->private_impl.f_components_h[2u]))); + v_height2 = (8u * ((uint32_t)(self->private_impl.f_components_v[2u]))); + } + v_i = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[3u])); + v_j = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[4u])); + if ((v_i <= v_j) && (v_j <= 640u)) { + v_src3 = wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, v_i, v_j); + v_width3 = (8u * ((uint32_t)(self->private_impl.f_components_h[3u]))); + v_height3 = (8u * ((uint32_t)(self->private_impl.f_components_v[3u]))); + } + } else { + if ((self->private_impl.f_components_workbuf_offsets[0u] <= self->private_impl.f_components_workbuf_offsets[1u]) && (self->private_impl.f_components_workbuf_offsets[1u] <= ((uint64_t)(a_workbuf.len)))) { + v_src0 = wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_components_workbuf_offsets[0u], + self->private_impl.f_components_workbuf_offsets[1u]); + v_width0 = self->private_impl.f_components_workbuf_widths[0u]; + v_height0 = self->private_impl.f_components_workbuf_heights[0u]; + } + if ((self->private_impl.f_components_workbuf_offsets[1u] <= self->private_impl.f_components_workbuf_offsets[2u]) && (self->private_impl.f_components_workbuf_offsets[2u] <= ((uint64_t)(a_workbuf.len)))) { + v_src1 = wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_components_workbuf_offsets[1u], + self->private_impl.f_components_workbuf_offsets[2u]); + v_width1 = self->private_impl.f_components_workbuf_widths[1u]; + v_height1 = self->private_impl.f_components_workbuf_heights[1u]; + } + if ((self->private_impl.f_components_workbuf_offsets[2u] <= self->private_impl.f_components_workbuf_offsets[3u]) && (self->private_impl.f_components_workbuf_offsets[3u] <= ((uint64_t)(a_workbuf.len)))) { + v_src2 = wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_components_workbuf_offsets[2u], + self->private_impl.f_components_workbuf_offsets[3u]); + v_width2 = self->private_impl.f_components_workbuf_widths[2u]; + v_height2 = self->private_impl.f_components_workbuf_heights[2u]; + } + if ((self->private_impl.f_components_workbuf_offsets[3u] <= self->private_impl.f_components_workbuf_offsets[4u]) && (self->private_impl.f_components_workbuf_offsets[4u] <= ((uint64_t)(a_workbuf.len)))) { + v_src3 = wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_components_workbuf_offsets[3u], + self->private_impl.f_components_workbuf_offsets[4u]); + v_width3 = self->private_impl.f_components_workbuf_widths[3u]; + v_height3 = self->private_impl.f_components_workbuf_heights[3u]; + } + } + v_status = wuffs_base__pixel_swizzler__swizzle_ycck(&self->private_impl.f_swizzler, + a_dst, + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), + (a_x0 & 65535u), + wuffs_base__u32__min(a_x1, self->private_impl.f_width), + (a_y0 & 65535u), + wuffs_base__u32__min(a_y1, self->private_impl.f_height), + v_src0, + v_src1, + v_src2, + v_src3, + v_width0, + v_width1, + v_width2, + v_width3, + v_height0, + v_height1, + v_height2, + v_height3, + v_width0, + v_width1, + v_width2, + v_width3, + self->private_impl.f_components_h[0u], + self->private_impl.f_components_h[1u], + self->private_impl.f_components_h[2u], + self->private_impl.f_components_h[3u], + self->private_impl.f_components_v[0u], + self->private_impl.f_components_v[1u], + self->private_impl.f_components_v[2u], + self->private_impl.f_components_v[3u], + self->private_impl.f_is_rgb_or_cmyk, + ! self->private_impl.f_use_lower_quality, + wuffs_base__make_slice_u8(self->private_data.f_swizzle_ycck_scratch_buffer_2k, 2048)); + return wuffs_private_impl__status__ensure_not_a_suspension(v_status); +} + +// -------- func jpeg.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_jpeg__decoder__frame_dirty_rect( + const wuffs_jpeg__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func jpeg.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_jpeg__decoder__num_animation_loops( + const wuffs_jpeg__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func jpeg.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_jpeg__decoder__num_decoded_frame_configs( + const wuffs_jpeg__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func jpeg.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_jpeg__decoder__num_decoded_frames( + const wuffs_jpeg__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func jpeg.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_jpeg__decoder__restart_frame( + wuffs_jpeg__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + uint32_t v_i = 0; + uint32_t v_j = 0; + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if (a_index != 0u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + self->private_impl.f_bitstream_is_closed = false; + self->private_impl.f_expect_multiple_scans = false; + self->private_impl.f_frame_config_io_position = a_io_position; + self->private_impl.f_scan_count = 0u; + self->private_impl.f_restart_interval = self->private_impl.f_saved_restart_interval; + v_i = 0u; + while (v_i < 4u) { + self->private_impl.f_seen_dqt[v_i] = self->private_impl.f_saved_seen_dqt[v_i]; + v_j = 0u; + while (v_j < 64u) { + self->private_impl.f_quant_tables[v_i][v_j] = self->private_impl.f_saved_quant_tables[v_i][v_j]; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 4u) { + v_j = 0u; + while (v_j < 10u) { + self->private_impl.f_block_smoothing_lowest_scan_al[v_i][v_j] = 16u; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 8u) { + self->private_impl.f_seen_dht[v_i] = false; + v_i += 1u; + } + return wuffs_base__make_status(NULL); +} + +// -------- func jpeg.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_jpeg__decoder__set_report_metadata( + wuffs_jpeg__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_jpeg__decoder__tell_me_more( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func jpeg.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_jpeg__decoder__workbuf_len( + const wuffs_jpeg__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + if (self->private_impl.f_use_lower_quality && (self->private_impl.f_sof_marker < 194u)) { + return wuffs_base__utility__make_range_ii_u64(0u, self->private_impl.f_components_workbuf_offsets[8u]); + } + return wuffs_base__utility__make_range_ii_u64(self->private_impl.f_components_workbuf_offsets[8u], self->private_impl.f_components_workbuf_offsets[8u]); +} + +// -------- func jpeg.decoder.top_left_quants_has_zero + +WUFFS_BASE__GENERATED_C_CODE +static bool +wuffs_jpeg__decoder__top_left_quants_has_zero( + const wuffs_jpeg__decoder* self, + uint32_t a_q) { + return ((self->private_impl.f_quant_tables[a_q][0u] == 0u) || + (self->private_impl.f_quant_tables[a_q][1u] == 0u) || + (self->private_impl.f_quant_tables[a_q][2u] == 0u) || + (self->private_impl.f_quant_tables[a_q][3u] == 0u) || + (self->private_impl.f_quant_tables[a_q][8u] == 0u) || + (self->private_impl.f_quant_tables[a_q][9u] == 0u) || + (self->private_impl.f_quant_tables[a_q][10u] == 0u) || + (self->private_impl.f_quant_tables[a_q][16u] == 0u) || + (self->private_impl.f_quant_tables[a_q][17u] == 0u) || + (self->private_impl.f_quant_tables[a_q][24u] == 0u)); +} + +// -------- func jpeg.decoder.load_mcu_blocks_for_single_component_smooth + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_csel) { + uint64_t v_stride16 = 0; + uint64_t v_offset = 0; + uint32_t v_dx = 0; + uint32_t v_dy = 0; + uint32_t v_mx = 0; + uint32_t v_my = 0; + uint8_t v_q = 0; + uint32_t v_q_00 = 0; + uint32_t v_q_xy = 0; + uint8_t v_al = 0; + uint32_t v_scratch = 0; + uint32_t v_limit = 0; + + v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[a_csel] * 16u))); + v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(a_mx)) * 128u) + (((uint64_t)(a_my)) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + v_dy = 0u; + while (v_dy < 5u) { + v_my = wuffs_base__u32__min(self->private_impl.f_block_smoothing_my_max_incl, wuffs_base__u32__sat_sub((a_my + v_dy), 2u)); + v_dx = 0u; + while (v_dx < 5u) { + v_mx = wuffs_base__u32__min(self->private_impl.f_block_smoothing_mx_max_incl, wuffs_base__u32__sat_sub((a_mx + v_dx), 2u)); + v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(v_mx)) * 128u) + (((uint64_t)(v_my)) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_load_host_endian(&self->private_impl.f_block_smoothing_dc_values[v_dy][v_dx], 1u * (size_t)2u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + v_dx += 1u; + } + v_dy += 1u; + } + v_q = self->private_impl.f_components_tq[a_csel]; + v_q_00 = ((uint32_t)(self->private_impl.f_quant_tables[v_q][0u])); + if (v_q_00 <= 0u) { + return wuffs_base__make_empty_struct(); + } + if (0u != (16u & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][1u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][2u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][3u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][4u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][5u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][6u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][7u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][8u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][9u])) { + v_scratch = 0u; + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(152u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + 128u)) / 256u))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + 128u)) / 256u))); + } + self->private_data.f_mcu_blocks[0u][0u] = ((uint16_t)(v_scratch)); + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][1u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][1u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(38u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(4294967258u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][1u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][2u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][2u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(4294967282u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][2u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][3u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][3u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][3u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][8u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][8u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(38u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(4294967258u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][8u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][9u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][9u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(9u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967287u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967287u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(9u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][9u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][10u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][10u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][10u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][16u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][16u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(4294967282u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][16u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][17u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][17u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][17u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][24u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][24u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][24u] = ((uint16_t)(v_scratch)); + } + } else { + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][1u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][1u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][1u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(4294967289u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(50u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(4294967246u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } + self->private_data.f_mcu_blocks[0u][1u] = ((uint16_t)(v_scratch)); + } + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][5u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][2u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][2u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(4294967272u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } + self->private_data.f_mcu_blocks[0u][2u] = ((uint16_t)(v_scratch)); + } + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][2u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][8u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][8u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(4294967289u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(50u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(4294967246u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } + self->private_data.f_mcu_blocks[0u][8u] = ((uint16_t)(v_scratch)); + } + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][4u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][9u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][9u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(10u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967286u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967286u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(10u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } + self->private_data.f_mcu_blocks[0u][9u] = ((uint16_t)(v_scratch)); + } + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][3u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][16u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][16u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(4294967272u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } + self->private_data.f_mcu_blocks[0u][16u] = ((uint16_t)(v_scratch)); + } + } + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.decode_mcu + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + return (*self->private_impl.choosy_decode_mcu)(self, a_dst, a_workbuf, a_mx, a_my); +} + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu__choosy_default( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint8_t v_csel = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + uint8_t v_dc_h = 0; + uint32_t v_dc_symbol = 0; + uint32_t v_dc_ht_fast = 0; + uint32_t v_dc_bl = 0; + uint32_t v_dc_code = 0; + uint32_t v_dc_blm1 = 0; + uint32_t v_dc_ht_slow = 0; + uint16_t v_dc_value = 0; + uint16_t v_dc_extend = 0; + const uint16_t* v_ac_huff_table_fast = NULL; + uint8_t v_ac_h = 0; + uint32_t v_ac_symbol = 0; + uint32_t v_ac_ht_fast = 0; + uint32_t v_ac_bl = 0; + uint32_t v_ac_code = 0; + uint32_t v_ac_blm1 = 0; + uint32_t v_ac_ht_slow = 0; + uint16_t v_ac_value = 0; + uint16_t v_ac_extend = 0; + uint32_t v_ac_rrrr = 0; + uint32_t v_ac_ssss = 0; + uint32_t v_z = 0; + uint32_t v_mcb = 0; + uint64_t v_stride = 0; + uint64_t v_offset = 0; + + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; + } + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { + while (self->private_impl.f_mcu_zig_index <= 0u) { + wuffs_private_impl__bulk_memset(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, 0u); + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_dc_h = self->private_impl.f_mcu_blocks_dc_hselector[self->private_impl.f_mcu_current_block]; + v_dc_ht_fast = ((uint32_t)(self->private_impl.f_huff_tables_fast[v_dc_h][(v_bits >> 56u)])); + v_dc_bl = (v_dc_ht_fast >> 8u); + if (v_n_bits >= v_dc_bl) { + v_dc_symbol = (15u & v_dc_ht_fast); + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + v_bits <<= (v_dc_bl & 63u); + v_n_bits -= v_dc_bl; + } else { + v_dc_code = ((uint32_t)((v_bits >> 55u))); + v_dc_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_dc_ht_slow = self->private_impl.f_huff_tables_slow[v_dc_h][v_dc_blm1]; + if (v_dc_code < (v_dc_ht_slow >> 8u)) { + v_dc_symbol = (15u & ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_dc_h][(255u & ((uint32_t)(v_dc_code + v_dc_ht_slow)))]))); + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + break; + } + v_dc_code = (((uint32_t)(v_dc_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_dc_blm1 = ((v_dc_blm1 + 1u) & 15u); + if (v_dc_blm1 == 0u) { + v_dc_symbol = 0u; + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + break; + } + } + } + v_dc_value = ((uint16_t)(((v_bits >> 32u) >> (32u - v_dc_symbol)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_dc_value += ((uint16_t)(v_dc_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_dc_symbol; + v_n_bits -= v_dc_symbol; + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[self->private_impl.f_mcu_current_block]]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_mcu_previous_dc_values[v_csel] += v_dc_value; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_data.f_mcu_blocks[0u][0u] = self->private_impl.f_mcu_previous_dc_values[v_csel]; + self->private_impl.f_mcu_zig_index = 1u; + break; + } + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + if (v_n_bits < 16u) { + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + } + v_z = 1u; + self->private_impl.f_mcu_zig_index = 0u; + v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[self->private_impl.f_mcu_current_block]; + v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; + while (v_z < 64u) { + v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_ac_bl = (v_ac_ht_fast >> 8u); + if (v_n_bits >= v_ac_bl) { + v_ac_symbol = (255u & v_ac_ht_fast); + v_bits <<= (v_ac_bl & 63u); + v_n_bits -= v_ac_bl; + } else { + v_ac_code = ((uint32_t)((v_bits >> 55u))); + v_ac_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; + if (v_ac_code < (v_ac_ht_slow >> 8u)) { + v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); + break; + } + v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); + if (v_ac_blm1 == 0u) { + v_ac_symbol = 0u; + break; + } + } + } + v_ac_rrrr = (v_ac_symbol >> 4u); + v_z += (v_ac_rrrr + 1u); + v_ac_ssss = (v_ac_symbol & 15u); + v_ac_extend = WUFFS_JPEG__EXTEND[v_ac_ssss]; + if (v_ac_ssss > 0u) { + v_ac_value = ((uint16_t)((v_bits >> (64u - v_ac_ssss)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_ac_value += ((uint16_t)(v_ac_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_ac_ssss; + v_n_bits -= v_ac_ssss; + self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[v_z]] = v_ac_value; + } else if (v_ac_rrrr < 15u) { + break; + } + } + v_mcb = self->private_impl.f_mcu_current_block; + self->private_impl.f_mcu_current_block += 1u; + if (self->private_impl.f_test_only_interrupt_decode_mcu) { + goto label__goto_done__break; + } + if ( ! self->private_impl.f_swizzle_immediately) { + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_mcb]]; + v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])); + v_offset = (self->private_impl.f_mcu_blocks_offset[v_mcb] + (((uint64_t)(self->private_impl.f_mcu_blocks_mx_mul[v_mcb])) * ((uint64_t)(a_mx))) + (((uint64_t)(self->private_impl.f_mcu_blocks_my_mul[v_mcb])) * ((uint64_t)(a_my)))); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_jpeg__decoder__decode_idct(self, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); + } + } else if (self->private_impl.f_num_components == 1u) { + wuffs_jpeg__decoder__decode_idct(self, wuffs_base__make_slice_u8(self->private_data.f_swizzle_immediately_buffer, 64), 8u, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); + self->private_impl.f_swizzle_immediately_status = wuffs_jpeg__decoder__swizzle_gray(self, + a_dst, + wuffs_base__make_slice_u8(self->private_data.f_swizzle_immediately_buffer, 64), + ((a_mx + 0u) * 8u), + ((a_mx + 1u) * 8u), + ((a_my + 0u) * 8u), + ((a_my + 1u) * 8u), + 8u); + if ( ! wuffs_base__status__is_ok(&self->private_impl.f_swizzle_immediately_status)) { + v_ret = 3u; + goto label__goto_done__break; + } + break; + } else { + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_mcb]]; + v_stride = (8u * ((uint64_t)(self->private_impl.f_components_h[v_csel]))); + wuffs_jpeg__decoder__decode_idct(self, wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, self->private_impl.f_swizzle_immediately_b_offsets[v_mcb], 640), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); + if (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { + continue; + } + self->private_impl.f_swizzle_immediately_status = wuffs_jpeg__decoder__swizzle_colorful(self, + a_dst, + wuffs_base__utility__empty_slice_u8(), + ((a_mx + 0u) * 8u * ((uint32_t)(self->private_impl.f_max_incl_components_h))), + ((a_mx + 1u) * 8u * ((uint32_t)(self->private_impl.f_max_incl_components_h))), + ((a_my + 0u) * 8u * ((uint32_t)(self->private_impl.f_max_incl_components_v))), + ((a_my + 1u) * 8u * ((uint32_t)(self->private_impl.f_max_incl_components_v)))); + if ( ! wuffs_base__status__is_ok(&self->private_impl.f_swizzle_immediately_status)) { + v_ret = 3u; + goto label__goto_done__break; + } + break; + } + } + self->private_impl.f_mcu_current_block = 0u; + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; + } + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; + } + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; +} + +// -------- func jpeg.decoder.decode_mcu_progressive_ac_high_bits + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + const uint16_t* v_ac_huff_table_fast = NULL; + uint8_t v_ac_h = 0; + uint32_t v_ac_symbol = 0; + uint32_t v_ac_ht_fast = 0; + uint32_t v_ac_bl = 0; + uint32_t v_ac_code = 0; + uint32_t v_ac_blm1 = 0; + uint32_t v_ac_ht_slow = 0; + uint16_t v_ac_value = 0; + uint16_t v_ac_extend = 0; + uint32_t v_ac_rrrr = 0; + uint32_t v_ac_ssss = 0; + uint32_t v_z = 0; + + if (self->private_impl.f_eob_run > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_eob_run -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + return 0u; + } + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; + } + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + do { + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + if (v_n_bits < 16u) { + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + } + v_z = self->private_impl.f_mcu_zig_index; + self->private_impl.f_mcu_zig_index = 0u; + v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[0u]; + v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; + while (v_z <= ((uint32_t)(self->private_impl.f_scan_se))) { + v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_ac_bl = (v_ac_ht_fast >> 8u); + if (v_n_bits >= v_ac_bl) { + v_ac_symbol = (255u & v_ac_ht_fast); + v_bits <<= (v_ac_bl & 63u); + v_n_bits -= v_ac_bl; + } else { + v_ac_code = ((uint32_t)((v_bits >> 55u))); + v_ac_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; + if (v_ac_code < (v_ac_ht_slow >> 8u)) { + v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); + break; + } + v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); + if (v_ac_blm1 == 0u) { + v_ac_symbol = 0u; + break; + } + } + } + v_ac_rrrr = (v_ac_symbol >> 4u); + v_z += (v_ac_rrrr + 1u); + v_ac_ssss = (v_ac_symbol & 15u); + v_ac_extend = WUFFS_JPEG__EXTEND[v_ac_ssss]; + if (v_ac_ssss > 0u) { + v_ac_value = ((uint16_t)((v_bits >> (64u - v_ac_ssss)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_ac_value += ((uint16_t)(v_ac_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_ac_ssss; + v_n_bits -= v_ac_ssss; + self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[v_z]] = ((uint16_t)(((uint16_t)(v_ac_value << self->private_impl.f_scan_al)))); + } else if (v_ac_rrrr < 15u) { + self->private_impl.f_eob_run = ((uint16_t)(((uint16_t)(((uint16_t)(((uint16_t)(1u)) << v_ac_rrrr)) - 1u)))); + if (v_ac_rrrr > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_eob_run += ((uint16_t)((v_bits >> (64u - v_ac_rrrr)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_ac_rrrr; + v_n_bits -= v_ac_rrrr; + } + break; + } + } + } while (0); + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; + } + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; + } + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; +} + +// -------- func jpeg.decoder.decode_mcu_progressive_ac_low_bit + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint16_t v_one_lshift_scan_al = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + const uint16_t* v_ac_huff_table_fast = NULL; + uint8_t v_ac_h = 0; + uint32_t v_ac_symbol = 0; + uint32_t v_ac_ht_fast = 0; + uint32_t v_ac_bl = 0; + uint32_t v_ac_code = 0; + uint32_t v_ac_blm1 = 0; + uint32_t v_ac_ht_slow = 0; + uint16_t v_ac_value = 0; + uint32_t v_ac_rrrr = 0; + uint32_t v_ac_ssss = 0; + uint8_t v_unzig = 0; + bool v_bit = false; + + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + v_one_lshift_scan_al = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; + } + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + do { + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + while (true) { + if (self->private_impl.f_eob_run > 0u) { + break; + } + v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[0u]; + v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; + while (true) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); + v_ac_bl = (v_ac_ht_fast >> 8u); + if (v_n_bits >= v_ac_bl) { + v_ac_symbol = (255u & v_ac_ht_fast); + v_bits <<= (v_ac_bl & 63u); + v_n_bits -= v_ac_bl; + } else { + v_ac_code = ((uint32_t)((v_bits >> 55u))); + v_ac_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; + if (v_ac_code < (v_ac_ht_slow >> 8u)) { + v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); + break; + } + v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); + if (v_ac_blm1 == 0u) { + v_ac_symbol = 0u; + break; + } + } + } + v_ac_rrrr = (v_ac_symbol >> 4u); + v_ac_ssss = (v_ac_symbol & 15u); + v_ac_value = 0u; + if (v_ac_ssss > 0u) { + v_ac_value = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); + if ((v_bits >> 63u) == 0u) { + v_ac_value = ((uint16_t)(((uint16_t)(65535u)) << self->private_impl.f_scan_al)); + } + v_bits <<= 1u; + v_n_bits -= 1u; + } else if (v_ac_rrrr < 15u) { + self->private_impl.f_eob_run = ((uint16_t)(((uint16_t)(1u)) << v_ac_rrrr)); + if (v_ac_rrrr > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_eob_run += ((uint16_t)((v_bits >> (64u - v_ac_rrrr)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_ac_rrrr; + v_n_bits -= v_ac_rrrr; + } + goto label__goto_do_eob__break; + } + while (true) { + v_unzig = WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]; + if (self->private_data.f_mcu_blocks[0u][v_unzig] != 0u) { + if (v_n_bits == 0u) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + } + v_bit = ((v_bits >> 63u) > 0u); + v_bits <<= 1u; + v_n_bits -= 1u; + if (v_bit) { + if (self->private_data.f_mcu_blocks[0u][v_unzig] < 32768u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_mcu_blocks[0u][v_unzig] += v_one_lshift_scan_al; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_mcu_blocks[0u][v_unzig] -= v_one_lshift_scan_al; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + } + } else if (v_ac_rrrr <= 0u) { + break; + } else { + v_ac_rrrr -= 1u; + } + if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { + break; + } + self->private_impl.f_mcu_zig_index += 1u; + } + if (v_ac_value != 0u) { + self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]] = v_ac_value; + } + if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { + break; + } + self->private_impl.f_mcu_zig_index += 1u; + } + goto label__block__break; + } + label__goto_do_eob__break:; + if (self->private_impl.f_eob_run <= 0u) { + v_ret = 2u; + goto label__goto_done__break; + } + while (true) { + v_unzig = WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]; + if (self->private_data.f_mcu_blocks[0u][v_unzig] != 0u) { + if (v_n_bits == 0u) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + } + v_bit = ((v_bits >> 63u) > 0u); + v_bits <<= 1u; + v_n_bits -= 1u; + if (v_bit) { + if (self->private_data.f_mcu_blocks[0u][v_unzig] < 32768u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_mcu_blocks[0u][v_unzig] += v_one_lshift_scan_al; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_mcu_blocks[0u][v_unzig] -= v_one_lshift_scan_al; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + } + } + if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { + break; + } + self->private_impl.f_mcu_zig_index += 1u; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_eob_run -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } while (0); + label__block__break:; + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; + } + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; + } + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; +} + +// -------- func jpeg.decoder.decode_mcu_progressive_dc_high_bits + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint8_t v_csel = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + uint8_t v_dc_h = 0; + uint32_t v_dc_symbol = 0; + uint32_t v_dc_ht_fast = 0; + uint32_t v_dc_bl = 0; + uint32_t v_dc_code = 0; + uint32_t v_dc_blm1 = 0; + uint32_t v_dc_ht_slow = 0; + uint16_t v_dc_value = 0; + uint16_t v_dc_extend = 0; + + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; + } + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + do { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_dc_h = self->private_impl.f_mcu_blocks_dc_hselector[self->private_impl.f_mcu_current_block]; + v_dc_ht_fast = ((uint32_t)(self->private_impl.f_huff_tables_fast[v_dc_h][(v_bits >> 56u)])); + v_dc_bl = (v_dc_ht_fast >> 8u); + if (v_n_bits >= v_dc_bl) { + v_dc_symbol = (15u & v_dc_ht_fast); + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + v_bits <<= (v_dc_bl & 63u); + v_n_bits -= v_dc_bl; + } else { + v_dc_code = ((uint32_t)((v_bits >> 55u))); + v_dc_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_dc_ht_slow = self->private_impl.f_huff_tables_slow[v_dc_h][v_dc_blm1]; + if (v_dc_code < (v_dc_ht_slow >> 8u)) { + v_dc_symbol = (15u & ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_dc_h][(255u & ((uint32_t)(v_dc_code + v_dc_ht_slow)))]))); + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + break; + } + v_dc_code = (((uint32_t)(v_dc_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_dc_blm1 = ((v_dc_blm1 + 1u) & 15u); + if (v_dc_blm1 == 0u) { + v_dc_symbol = 0u; + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + break; + } + } + } + v_dc_value = ((uint16_t)(((v_bits >> 32u) >> (32u - v_dc_symbol)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_dc_value += ((uint16_t)(v_dc_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_dc_symbol; + v_n_bits -= v_dc_symbol; + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[self->private_impl.f_mcu_current_block]]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_mcu_previous_dc_values[v_csel] += v_dc_value; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_data.f_mcu_blocks[self->private_impl.f_mcu_current_block][0u] = ((uint16_t)(self->private_impl.f_mcu_previous_dc_values[v_csel] << self->private_impl.f_scan_al)); + } while (0); + self->private_impl.f_mcu_current_block += 1u; + } + self->private_impl.f_mcu_current_block = 0u; + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; + } + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; + } + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; +} + +// -------- func jpeg.decoder.decode_mcu_progressive_dc_low_bit + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint16_t v_one_lshift_scan_al = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + v_one_lshift_scan_al = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; + } + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + do { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + if ((v_bits >> 63u) != 0u) { + self->private_data.f_mcu_blocks[self->private_impl.f_mcu_current_block][0u] |= v_one_lshift_scan_al; + } + v_bits <<= 1u; + v_n_bits -= 1u; + } while (0); + self->private_impl.f_mcu_current_block += 1u; + } + self->private_impl.f_mcu_current_block = 0u; + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; + } + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; + } + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JPEG) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) + +// ---------------- Status Codes Implementations + +const char wuffs_json__error__bad_c0_control_code[] = "#json: bad C0 control code"; +const char wuffs_json__error__bad_utf_8[] = "#json: bad UTF-8"; +const char wuffs_json__error__bad_backslash_escape[] = "#json: bad backslash-escape"; +const char wuffs_json__error__bad_input[] = "#json: bad input"; +const char wuffs_json__error__bad_new_line_in_a_string[] = "#json: bad new-line in a string"; +const char wuffs_json__error__bad_quirk_combination[] = "#json: bad quirk combination"; +const char wuffs_json__error__unsupported_number_length[] = "#json: unsupported number length"; +const char wuffs_json__error__unsupported_recursion_depth[] = "#json: unsupported recursion depth"; +const char wuffs_json__error__internal_error_inconsistent_i_o[] = "#json: internal error: inconsistent I/O"; + +// ---------------- Private Consts + +#define WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL 99u + +static const uint8_t +WUFFS_JSON__LUT_BACKSLASHES[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 3u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 162u, 0u, 0u, 0u, 0u, 5u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 175u, + 7u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 4u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 220u, 0u, 0u, 0u, + 0u, 1u, 136u, 0u, 0u, 2u, 140u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 138u, 0u, + 0u, 0u, 141u, 0u, 137u, 0u, 6u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +}; + +static const uint8_t +WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 3u, 4u, 5u, 6u, 7u, 10u, +}; + +static const uint8_t +WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 7u, 27u, 10u, 63u, 39u, 11u, 0u, +}; + +static const uint8_t +WUFFS_JSON__LUT_CHARS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, + 136u, 137u, 138u, 139u, 140u, 141u, 142u, 143u, + 144u, 145u, 146u, 147u, 148u, 149u, 150u, 151u, + 152u, 153u, 154u, 155u, 156u, 157u, 158u, 159u, + 0u, 0u, 1u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 2u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 32u, 32u, 3u, 3u, 3u, 3u, 3u, 3u, + 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, + 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, + 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, + 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, + 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, + 5u, 5u, 5u, 5u, 5u, 32u, 32u, 32u, + 32u, 32u, 32u, 32u, 32u, 32u, 32u, 32u, +}; + +#define WUFFS_JSON__CLASS_WHITESPACE 0u + +#define WUFFS_JSON__CLASS_STRING 1u + +#define WUFFS_JSON__CLASS_COMMA 2u + +#define WUFFS_JSON__CLASS_COLON 3u + +#define WUFFS_JSON__CLASS_NUMBER 4u + +#define WUFFS_JSON__CLASS_OPEN_CURLY_BRACE 5u + +#define WUFFS_JSON__CLASS_CLOSE_CURLY_BRACE 6u + +#define WUFFS_JSON__CLASS_OPEN_SQUARE_BRACKET 7u + +#define WUFFS_JSON__CLASS_CLOSE_SQUARE_BRACKET 8u + +#define WUFFS_JSON__CLASS_FALSE 9u + +#define WUFFS_JSON__CLASS_TRUE 10u + +#define WUFFS_JSON__CLASS_NULL_NAN_INF 11u + +#define WUFFS_JSON__CLASS_COMMENT 12u + +#define WUFFS_JSON__EXPECT_VALUE 7858u + +#define WUFFS_JSON__EXPECT_NON_STRING_VALUE 7856u + +#define WUFFS_JSON__EXPECT_STRING 4098u + +#define WUFFS_JSON__EXPECT_COMMA 4100u + +#define WUFFS_JSON__EXPECT_COLON 4104u + +#define WUFFS_JSON__EXPECT_NUMBER 4112u + +#define WUFFS_JSON__EXPECT_CLOSE_CURLY_BRACE 4160u + +#define WUFFS_JSON__EXPECT_CLOSE_SQUARE_BRACKET 4352u + +static const uint8_t +WUFFS_JSON__LUT_CLASSES[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 0u, 0u, 15u, 15u, 0u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 0u, 15u, 1u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 11u, 2u, 4u, 15u, 12u, + 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, + 4u, 4u, 3u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 11u, 15u, 15u, 15u, 15u, 11u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 7u, 15u, 8u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 9u, 15u, + 15u, 11u, 15u, 15u, 15u, 15u, 11u, 15u, + 15u, 15u, 15u, 15u, 10u, 15u, 15u, 15u, + 15u, 15u, 15u, 5u, 15u, 6u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, +}; + +static const uint8_t +WUFFS_JSON__LUT_DECIMAL_DIGITS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, + 136u, 137u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +}; + +static const uint8_t +WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, + 136u, 137u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 138u, 139u, 140u, 141u, 142u, 143u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 138u, 139u, 140u, 141u, 142u, 143u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +}; + +#define WUFFS_JSON__QUIRKS_BASE 1225364480u + +#define WUFFS_JSON__QUIRKS_COUNT 21u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_json__decoder__decode_number( + wuffs_json__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_json__decoder__decode_digits( + wuffs_json__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_n); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_leading( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_comment( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_inf_nan( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_trailer( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +// ---------------- VTables + +const wuffs_base__token_decoder__func_ptrs +wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__token_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_json__decoder__decode_tokens), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_json__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_json__decoder__set_quirk), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_json__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_json__decoder__initialize( + wuffs_json__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__token_decoder.vtable_name = + wuffs_base__token_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__token_decoder.function_pointers = + (const void*)(&wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_json__decoder* +wuffs_json__decoder__alloc(void) { + wuffs_json__decoder* x = + (wuffs_json__decoder*)(calloc(1, sizeof(wuffs_json__decoder))); + if (!x) { + return NULL; + } + if (wuffs_json__decoder__initialize( + x, sizeof(wuffs_json__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_json__decoder(void) { + return sizeof(wuffs_json__decoder); +} + +// ---------------- Function Implementations + +// -------- func json.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_json__decoder__get_quirk( + const wuffs_json__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + uint32_t v_key = 0; + + if (a_key >= 1225364480u) { + v_key = (a_key - 1225364480u); + if (v_key < 21u) { + if (self->private_impl.f_quirks[v_key]) { + return 1u; + } + } + } + return 0u; +} + +// -------- func json.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_json__decoder__set_quirk( + wuffs_json__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (a_key >= 1225364480u) { + a_key -= 1225364480u; + if (a_key < 21u) { + self->private_impl.f_quirks[a_key] = (a_value > 0u); + return wuffs_base__make_status(NULL); + } + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func json.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_json__decoder__workbuf_len( + const wuffs_json__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__empty_range_ii_u64(); +} + +// -------- func json.decoder.decode_tokens + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_json__decoder__decode_tokens( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_vminor = 0; + uint32_t v_number_length = 0; + uint32_t v_number_status = 0; + uint32_t v_string_length = 0; + uint32_t v_whitespace_length = 0; + uint32_t v_depth = 0; + uint32_t v_stack_byte = 0; + uint32_t v_stack_bit = 0; + uint32_t v_match = 0; + uint32_t v_c32 = 0; + uint8_t v_c8 = 0; + uint8_t v_backslash = 0; + uint8_t v_char = 0; + uint8_t v_class = 0; + uint32_t v_multi_byte_utf8 = 0; + uint8_t v_backslash_x_ok = 0; + uint8_t v_backslash_x_value = 0; + uint32_t v_backslash_x_string = 0; + uint8_t v_uni4_ok = 0; + uint64_t v_uni4_string = 0; + uint32_t v_uni4_value = 0; + uint32_t v_uni4_high_surrogate = 0; + uint8_t v_uni8_ok = 0; + uint64_t v_uni8_string = 0; + uint32_t v_uni8_value = 0; + uint32_t v_expect = 0; + uint32_t v_expect_after_value = 0; + + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_tokens; + if (coro_susp_point) { + v_depth = self->private_data.s_decode_tokens.v_depth; + v_expect = self->private_data.s_decode_tokens.v_expect; + v_expect_after_value = self->private_data.s_decode_tokens.v_expect_after_value; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_end_of_data) { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (self->private_impl.f_quirks[18u]) { + if (self->private_impl.f_quirks[11u] || self->private_impl.f_quirks[12u] || self->private_impl.f_quirks[17u]) { + status = wuffs_base__make_status(wuffs_json__error__bad_quirk_combination); + goto exit; + } + } + if (self->private_impl.f_quirks[15u] || self->private_impl.f_quirks[16u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_json__decoder__decode_leading(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + v_expect = 7858u; + label__outer__continue:; + while (true) { + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + goto label__outer__continue; + } + v_whitespace_length = 0u; + v_c8 = 0u; + v_class = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (v_whitespace_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_whitespace_length = 0u; + } + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + goto label__outer__continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + v_class = WUFFS_JSON__LUT_CLASSES[v_c8]; + if (v_class != 0u) { + break; + } + iop_a_src += 1u; + if (v_whitespace_length >= 65534u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(65535u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_whitespace_length = 0u; + goto label__outer__continue; + } + v_whitespace_length += 1u; + } + if (v_whitespace_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_whitespace_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__outer__continue; + } + } + if (0u == (v_expect & (((uint32_t)(1u)) << v_class))) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + if (v_class == 1u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + label__string_loop_outer__continue:; + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + continue; + } + v_string_length = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + } + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + goto label__string_loop_outer__continue; + } + while (((uint64_t)(io2_a_src - iop_a_src)) > 4u) { + v_c32 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + if (0u != (WUFFS_JSON__LUT_CHARS[(255u & (v_c32 >> 0u))] | + WUFFS_JSON__LUT_CHARS[(255u & (v_c32 >> 8u))] | + WUFFS_JSON__LUT_CHARS[(255u & (v_c32 >> 16u))] | + WUFFS_JSON__LUT_CHARS[(255u & (v_c32 >> 24u))])) { + break; + } + iop_a_src += 4u; + if (v_string_length > 65527u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_string_length + 4u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 4u; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + v_char = WUFFS_JSON__LUT_CHARS[v_c8]; + if (v_char == 0u) { + iop_a_src += 1u; + if (v_string_length >= 65531u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(65532u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 1u; + continue; + } else if (v_char == 1u) { + if (v_string_length != 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + } + goto label__string_loop_outer__break; + } else if (v_char == 2u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + goto label__string_loop_outer__continue; + } + v_c8 = ((uint8_t)(((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)))); + v_backslash = WUFFS_JSON__LUT_BACKSLASHES[v_c8]; + if (((uint8_t)(v_backslash & 128u)) != 0u) { + iop_a_src += 2u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | ((uint32_t)(((uint8_t)(v_backslash & 127u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } else if (v_backslash != 0u) { + if (self->private_impl.f_quirks[WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[((uint8_t)(v_backslash & 7u))]]) { + iop_a_src += 2u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | ((uint32_t)(WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[((uint8_t)(v_backslash & 7u))]))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + } else if (v_c8 == 117u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 6u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + goto label__string_loop_outer__continue; + } + v_uni4_string = (((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))) >> 16u); + v_uni4_value = 0u; + v_uni4_ok = 128u; + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 0u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 12u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 8u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 8u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 16u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 4u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 24u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 0u); + if (v_uni4_ok == 0u) { + } else if ((v_uni4_value < 55296u) || (57343u < v_uni4_value)) { + iop_a_src += 6u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } else if (v_uni4_value >= 56320u) { + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) < 12u) { + if (a_src && a_src->meta.closed) { + if (self->private_impl.f_quirks[20u]) { + iop_a_src += 6u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + goto label__string_loop_outer__continue; + } + v_uni4_string = (wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 4u) >> 16u); + if (((255u & (v_uni4_string >> 0u)) != 92u) || ((255u & (v_uni4_string >> 8u)) != 117u)) { + v_uni4_high_surrogate = 0u; + v_uni4_value = 0u; + v_uni4_ok = 0u; + } else { + v_uni4_high_surrogate = (65536u + ((v_uni4_value - 55296u) << 10u)); + v_uni4_value = 0u; + v_uni4_ok = 128u; + v_uni4_string >>= 16u; + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 0u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 12u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 8u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 8u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 16u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 4u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 24u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 0u); + } + if ((v_uni4_ok != 0u) && (56320u <= v_uni4_value) && (v_uni4_value <= 57343u)) { + v_uni4_value -= 56320u; + iop_a_src += 12u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | v_uni4_high_surrogate | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(12u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + } + if (self->private_impl.f_quirks[20u]) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 6u) { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; + } + iop_a_src += 6u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + } else if ((v_c8 == 85u) && self->private_impl.f_quirks[2u]) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 10u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + goto label__string_loop_outer__continue; + } + v_uni8_string = wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 2u); + v_uni8_value = 0u; + v_uni8_ok = 128u; + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 0u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 28u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 8u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 24u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 16u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 20u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 24u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 16u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 32u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 12u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 40u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 8u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 48u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 4u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 56u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 0u); + if (v_uni8_ok == 0u) { + } else if ((v_uni8_value < 55296u) || ((57343u < v_uni8_value) && (v_uni8_value <= 1114111u))) { + iop_a_src += 10u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | (v_uni8_value & 2097151u)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(10u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } else if (self->private_impl.f_quirks[20u]) { + iop_a_src += 10u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(10u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + } else if ((v_c8 == 120u) && self->private_impl.f_quirks[9u]) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + goto label__string_loop_outer__continue; + } + v_backslash_x_string = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + v_backslash_x_ok = 128u; + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_backslash_x_string >> 16u))]; + v_backslash_x_ok &= v_c8; + v_backslash_x_value = ((uint8_t)(((uint8_t)(((uint8_t)(v_c8 & 15u)) << 4u)))); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_backslash_x_string >> 24u))]; + v_backslash_x_ok &= v_c8; + v_backslash_x_value = ((uint8_t)(((uint8_t)(v_backslash_x_value | ((uint8_t)(v_c8 & 15u)))))); + if ((v_backslash_x_ok == 0u) || ((v_backslash_x_string & 65535u) != 30812u)) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + iop_a_src += 4u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | ((uint32_t)(v_backslash_x_value))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } else if (v_char == 3u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (a_src && a_src->meta.closed) { + if (self->private_impl.f_quirks[20u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + goto label__string_loop_outer__continue; + } + v_multi_byte_utf8 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + if ((v_multi_byte_utf8 & 49152u) == 32768u) { + v_multi_byte_utf8 = ((1984u & ((uint32_t)(v_multi_byte_utf8 << 6u))) | (63u & (v_multi_byte_utf8 >> 8u))); + iop_a_src += 2u; + if (v_string_length >= 65528u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_string_length + 2u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 2u; + continue; + } + } else if (v_char == 4u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (a_src && a_src->meta.closed) { + if (self->private_impl.f_quirks[20u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(12); + goto label__string_loop_outer__continue; + } + v_multi_byte_utf8 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + if ((v_multi_byte_utf8 & 12632064u) == 8421376u) { + v_multi_byte_utf8 = ((61440u & ((uint32_t)(v_multi_byte_utf8 << 12u))) | (4032u & (v_multi_byte_utf8 >> 2u)) | (63u & (v_multi_byte_utf8 >> 16u))); + if ((2047u < v_multi_byte_utf8) && ((v_multi_byte_utf8 < 55296u) || (57343u < v_multi_byte_utf8))) { + iop_a_src += 3u; + if (v_string_length >= 65528u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_string_length + 3u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 3u; + continue; + } + } + } else if (v_char == 5u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (a_src && a_src->meta.closed) { + if (self->private_impl.f_quirks[20u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(13); + goto label__string_loop_outer__continue; + } + v_multi_byte_utf8 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + if ((v_multi_byte_utf8 & 3233857536u) == 2155905024u) { + v_multi_byte_utf8 = ((1835008u & ((uint32_t)(v_multi_byte_utf8 << 18u))) | + (258048u & ((uint32_t)(v_multi_byte_utf8 << 4u))) | + (4032u & (v_multi_byte_utf8 >> 10u)) | + (63u & (v_multi_byte_utf8 >> 24u))); + if ((65535u < v_multi_byte_utf8) && (v_multi_byte_utf8 <= 1114111u)) { + iop_a_src += 4u; + if (v_string_length >= 65528u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_string_length + 4u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 4u; + continue; + } + } + } + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (((uint8_t)(v_char & 128u)) != 0u) { + if (self->private_impl.f_quirks[0u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | ((uint32_t)(((uint8_t)(v_char & 127u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + if (v_char == 138u) { + status = wuffs_base__make_status(wuffs_json__error__bad_new_line_in_a_string); + goto exit; + } + status = wuffs_base__make_status(wuffs_json__error__bad_c0_control_code); + goto exit; + } + if (self->private_impl.f_quirks[20u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); + goto exit; + } + } + label__string_loop_outer__break:; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(14); + continue; + } + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(15); + continue; + } + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + break; + } + if (0u == (v_expect & (((uint32_t)(1u)) << 4u))) { + v_expect = 4104u; + goto label__outer__continue; + } + break; + } else if (v_class == 2u) { + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (0u == (v_expect & (((uint32_t)(1u)) << 8u))) { + if (self->private_impl.f_quirks[13u]) { + v_expect = 4162u; + } else { + v_expect = 4098u; + } + } else { + if (self->private_impl.f_quirks[13u]) { + v_expect = 8114u; + } else { + v_expect = 7858u; + } + } + goto label__outer__continue; + } else if (v_class == 3u) { + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 7858u; + goto label__outer__continue; + } else if (v_class == 4u) { + while (true) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_number_length = wuffs_json__decoder__decode_number(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + v_number_status = (v_number_length >> 8u); + v_vminor = 10486787u; + if ((v_number_length & 128u) != 0u) { + v_vminor = 10486785u; + } + v_number_length = (v_number_length & 127u); + if (v_number_status == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_number_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + break; + } + while (v_number_length > 0u) { + v_number_length -= 1u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; + } + } + if (v_number_status == 1u) { + if (self->private_impl.f_quirks[14u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + break; + } + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } else if (v_number_status == 2u) { + status = wuffs_base__make_status(wuffs_json__error__unsupported_number_length); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(17); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(18); + } + } + } + break; + } else if (v_class == 5u) { + v_vminor = 2113553u; + if (v_depth == 0u) { + } else if (0u != (v_expect_after_value & (((uint32_t)(1u)) << 6u))) { + v_vminor = 2113601u; + } else { + v_vminor = 2113569u; + } + if (v_depth >= 1024u) { + status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); + goto exit; + } + v_stack_byte = (v_depth / 32u); + v_stack_bit = (v_depth & 31u); + self->private_data.f_stack[v_stack_byte] |= (((uint32_t)(1u)) << v_stack_bit); + v_depth += 1u; + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4162u; + v_expect_after_value = 4164u; + goto label__outer__continue; + } else if (v_class == 6u) { + iop_a_src += 1u; + if (v_depth <= 1u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2101314u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__outer__break; + } + v_depth -= 1u; + v_stack_byte = ((v_depth - 1u) / 32u); + v_stack_bit = ((v_depth - 1u) & 31u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2105410u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4356u; + v_expect_after_value = 4356u; + } else { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2113602u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4164u; + v_expect_after_value = 4164u; + } + goto label__outer__continue; + } else if (v_class == 7u) { + v_vminor = 2105361u; + if (v_depth == 0u) { + } else if (0u != (v_expect_after_value & (((uint32_t)(1u)) << 6u))) { + v_vminor = 2105409u; + } else { + v_vminor = 2105377u; + } + if (v_depth >= 1024u) { + status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); + goto exit; + } + v_stack_byte = (v_depth / 32u); + v_stack_bit = (v_depth & 31u); + self->private_data.f_stack[v_stack_byte] &= (4294967295u ^ (((uint32_t)(1u)) << v_stack_bit)); + v_depth += 1u; + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 8114u; + v_expect_after_value = 4356u; + goto label__outer__continue; + } else if (v_class == 8u) { + iop_a_src += 1u; + if (v_depth <= 1u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2101282u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__outer__break; + } + v_depth -= 1u; + v_stack_byte = ((v_depth - 1u) / 32u); + v_stack_bit = ((v_depth - 1u) & 31u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2105378u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4356u; + v_expect_after_value = 4356u; + } else { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2113570u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4164u; + v_expect_after_value = 4164u; + } + goto label__outer__continue; + } else if (v_class == 9u) { + v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 111546413966853u); + if (v_match == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(8388612u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(5u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (((uint64_t)(io2_a_src - iop_a_src)) < 5u) { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; + } + iop_a_src += 5u; + break; + } else if (v_match == 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(19); + goto label__outer__continue; + } + } else if (v_class == 10u) { + v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 435762131972u); + if (v_match == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(8388616u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; + } + iop_a_src += 4u; + break; + } else if (v_match == 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(20); + goto label__outer__continue; + } + } else if (v_class == 11u) { + v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 465676103172u); + if (v_match == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(8388610u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; + } + iop_a_src += 4u; + break; + } else if (v_match == 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(21); + goto label__outer__continue; + } + if (self->private_impl.f_quirks[14u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + break; + } + } else if (v_class == 12u) { + if (self->private_impl.f_quirks[11u] || self->private_impl.f_quirks[12u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_comment_type > 0u) { + goto label__outer__continue; + } + } + } + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + if (v_depth == 0u) { + break; + } + v_expect = v_expect_after_value; + } + label__outer__break:; + if (self->private_impl.f_quirks[17u] || self->private_impl.f_quirks[18u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); + status = wuffs_json__decoder__decode_trailer(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + self->private_impl.f_end_of_data = true; + + ok: + self->private_impl.p_decode_tokens = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_tokens = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_data.s_decode_tokens.v_depth = v_depth; + self->private_data.s_decode_tokens.v_expect = v_expect; + self->private_data.s_decode_tokens.v_expect_after_value = v_expect_after_value; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func json.decoder.decode_number + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_json__decoder__decode_number( + wuffs_json__decoder* self, + wuffs_base__io_buffer* a_src) { + uint8_t v_c8 = 0; + uint32_t v_n = 0; + uint32_t v_floating_point = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + do { + v_n = 0u; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 != 45u) { + } else { + v_n += 1u; + iop_a_src += 1u; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + v_n |= 256u; + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + } + if (v_c8 == 48u) { + v_n += 1u; + iop_a_src += 1u; + } else { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (v_n > 99u) { + break; + } + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 != 46u) { + } else { + if (v_n >= 99u) { + v_n |= 512u; + break; + } + v_n += 1u; + iop_a_src += 1u; + v_floating_point = 128u; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (v_n > 99u) { + break; + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + } + if ((v_c8 != 69u) && (v_c8 != 101u)) { + break; + } + if (v_n >= 99u) { + v_n |= 512u; + break; + } + v_n += 1u; + iop_a_src += 1u; + v_floating_point = 128u; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + v_n |= 256u; + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if ((v_c8 != 43u) && (v_c8 != 45u)) { + } else { + if (v_n >= 99u) { + v_n |= 512u; + break; + } + v_n += 1u; + iop_a_src += 1u; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } while (0); + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return (v_n | v_floating_point); +} + +// -------- func json.decoder.decode_digits + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_json__decoder__decode_digits( + wuffs_json__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_n) { + uint8_t v_c8 = 0; + uint32_t v_n = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + v_n = a_n; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (0u == WUFFS_JSON__LUT_DECIMAL_DIGITS[v_c8]) { + break; + } + if (v_n >= 99u) { + v_n |= 512u; + break; + } + v_n += 1u; + iop_a_src += 1u; + } + if (v_n == a_n) { + v_n |= 256u; + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return v_n; +} + +// -------- func json.decoder.decode_leading + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_leading( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_u = 0; + + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_leading; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_allow_leading_ars = self->private_impl.f_quirks[15u]; + self->private_impl.f_allow_leading_ubom = self->private_impl.f_quirks[16u]; + while (self->private_impl.f_allow_leading_ars || self->private_impl.f_allow_leading_ubom) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + break; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if ((v_c8 == 30u) && self->private_impl.f_allow_leading_ars) { + self->private_impl.f_allow_leading_ars = false; + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + continue; + } else if ((v_c8 == 239u) && self->private_impl.f_allow_leading_ubom) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { + if (a_src && a_src->meta.closed) { + break; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + continue; + } + v_u = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + if (v_u == 12565487u) { + self->private_impl.f_allow_leading_ubom = false; + iop_a_src += 3u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + continue; + } + } + break; + } + + ok: + self->private_impl.p_decode_leading = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_leading = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func json.decoder.decode_comment + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_comment( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint16_t v_c16 = 0; + uint32_t v_length = 0; + + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_comment; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_comment_type = 0u; + while ((((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) || (((uint64_t)(io2_a_src - iop_a_src)) <= 1u)) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(NULL); + goto ok; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + v_c16 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + if ((v_c16 == 10799u) && self->private_impl.f_quirks[11u]) { + iop_a_src += 2u; + v_length = 2u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 1u) { + if (v_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + } + v_length = 0u; + continue; + } + v_c16 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + if (v_c16 == 12074u) { + iop_a_src += 2u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)((v_length + 2u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + self->private_impl.f_comment_type = 1u; + status = wuffs_base__make_status(NULL); + goto ok; + } + iop_a_src += 1u; + if (v_length >= 65533u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + v_length = 0u; + continue; + } + v_length += 1u; + } + } else if ((v_c16 == 12079u) && self->private_impl.f_quirks[12u]) { + iop_a_src += 2u; + v_length = 2u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + self->private_impl.f_comment_type = 2u; + status = wuffs_base__make_status(NULL); + goto ok; + } else if (v_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + } + v_length = 0u; + continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 == 10u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + self->private_impl.f_comment_type = 2u; + status = wuffs_base__make_status(NULL); + goto ok; + } + iop_a_src += 1u; + if (v_length >= 65533u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + } + v_length = 0u; + continue; + } + v_length += 1u; + } + } + + ok: + self->private_impl.p_decode_comment = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_comment = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func json.decoder.decode_inf_nan + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_inf_nan( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_c32 = 0; + uint32_t v_neg = 0; + + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_inf_nan; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 2u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + continue; + } + v_c32 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + if ((v_c32 | 2105376u) == 6712937u) { + if (((uint64_t)(io2_a_src - iop_a_src)) > 7u) { + if ((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) | 2314885530818453536u) == 8751735898823356009u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(10485792u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(8u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 8u; + status = wuffs_base__make_status(NULL); + goto ok; + } + } else if ( ! (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + continue; + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(10485792u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 3u; + status = wuffs_base__make_status(NULL); + goto ok; + } else if ((v_c32 | 2105376u) == 7233902u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(10485888u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 3u; + status = wuffs_base__make_status(NULL); + goto ok; + } else if ((v_c32 & 255u) == 43u) { + v_neg = 0u; + } else if ((v_c32 & 255u) == 45u) { + v_neg = 1u; + } else { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 3u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + continue; + } + v_c32 = (wuffs_base__peek_u32le__no_bounds_check(iop_a_src) >> 8u); + if ((v_c32 | 2105376u) == 6712937u) { + if (((uint64_t)(io2_a_src - iop_a_src)) > 8u) { + if ((wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 1u) | 2314885530818453536u) == 8751735898823356009u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((10485760u | (((uint32_t)(32u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(9u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 9u; + status = wuffs_base__make_status(NULL); + goto ok; + } + } else if ( ! (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + continue; + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((10485760u | (((uint32_t)(32u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 4u; + status = wuffs_base__make_status(NULL); + goto ok; + } else if ((v_c32 | 2105376u) == 7233902u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((10485760u | (((uint32_t)(128u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 4u; + status = wuffs_base__make_status(NULL); + goto ok; + } + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + + ok: + self->private_impl.p_decode_inf_nan = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_inf_nan = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func json.decoder.decode_trailer + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_trailer( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_whitespace_length = 0; + + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_trailer; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_quirks[18u]) { + self->private_impl.f_trailer_stop = 10u; + } else { + self->private_impl.f_trailer_stop = 0u; + } + label__outer__continue:; + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + v_whitespace_length = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (v_whitespace_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + if (a_src && a_src->meta.closed) { + goto label__outer__break; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + goto label__outer__continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (WUFFS_JSON__LUT_CLASSES[v_c8] != 0u) { + if (v_whitespace_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + if (self->private_impl.f_trailer_stop > 0u) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_comment_type > 0u) { + goto label__outer__continue; + } + status = wuffs_base__make_status(NULL); + goto ok; + } + iop_a_src += 1u; + if ((v_whitespace_length >= 65534u) || (v_c8 == self->private_impl.f_trailer_stop)) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)((v_whitespace_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (v_c8 == self->private_impl.f_trailer_stop) { + status = wuffs_base__make_status(NULL); + goto ok; + } + goto label__outer__continue; + } + v_whitespace_length += 1u; + } + } + label__outer__break:; + + ok: + self->private_impl.p_decode_trailer = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_trailer = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) + +// ---------------- Status Codes Implementations + +const char wuffs_lzma__error__bad_lzma2_header[] = "#lzma: bad LZMA2 header"; +const char wuffs_lzma__error__bad_bitstream_trailer[] = "#lzma: bad bitstream trailer"; +const char wuffs_lzma__error__bad_code[] = "#lzma: bad code"; +const char wuffs_lzma__error__bad_decoded_length[] = "#lzma: bad decoded length"; +const char wuffs_lzma__error__bad_distance[] = "#lzma: bad distance"; +const char wuffs_lzma__error__bad_header[] = "#lzma: bad header"; +const char wuffs_lzma__error__truncated_input[] = "#lzma: truncated input"; +const char wuffs_lzma__error__unsupported_decoded_length[] = "#lzma: unsupported decoded length"; +const char wuffs_lzma__error__unsupported_properties[] = "#lzma: unsupported properties"; +const char wuffs_lzma__error__internal_error_inconsistent_i_o[] = "#lzma: internal error: inconsistent I/O"; +const char wuffs_lzma__error__internal_error_inconsistent_dictionary_state[] = "#lzma: internal error: inconsistent dictionary state"; + +// ---------------- Private Consts + +static const uint8_t +WUFFS_LZMA__STATE_TRANSITION_LITERAL[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 1u, 2u, 3u, 4u, + 5u, 6u, 4u, 5u, +}; + +static const uint8_t +WUFFS_LZMA__STATE_TRANSITION_MATCH[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 7u, 7u, 7u, 7u, 7u, 7u, 7u, 10u, + 10u, 10u, 10u, 10u, +}; + +static const uint8_t +WUFFS_LZMA__STATE_TRANSITION_LONGREP[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 8u, 8u, 8u, 8u, 8u, 8u, 8u, 11u, + 11u, 11u, 11u, 11u, +}; + +static const uint8_t +WUFFS_LZMA__STATE_TRANSITION_SHORTREP[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 9u, 9u, 9u, 9u, 9u, 9u, 9u, 11u, + 11u, 11u, 11u, 11u, +}; + +static const uint8_t +WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 2u, 3u, 3u, 3u, 3u, 3u, +}; + +#define WUFFS_LZMA__QUIRKS_BASE 1348001792u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream_fast( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream_slow( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__add_history( + wuffs_lzma__decoder* self, + wuffs_base__slice_u8 a_hist, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__do_transform_io( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__update_stashed_bytes( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_optional_end_of_stream( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzma__decoder__initialize_dict( + wuffs_lzma__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzma__decoder__initialize_probs( + wuffs_lzma__decoder* self); + +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_lzma__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_lzma__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_lzma__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_lzma__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_lzma__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzma__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_lzma__decoder__initialize( + wuffs_lzma__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_lzma__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_lzma__decoder* +wuffs_lzma__decoder__alloc(void) { + wuffs_lzma__decoder* x = + (wuffs_lzma__decoder*)(calloc(1, sizeof(wuffs_lzma__decoder))); + if (!x) { + return NULL; + } + if (wuffs_lzma__decoder__initialize( + x, sizeof(wuffs_lzma__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_lzma__decoder(void) { + return sizeof(wuffs_lzma__decoder); +} + +// ---------------- Function Implementations + +// -------- func lzma.decoder.decode_bitstream_fast + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream_fast( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_bits = 0; + uint32_t v_range = 0; + uint32_t v_state = 0; + uint32_t v_rep0 = 0; + uint32_t v_rep1 = 0; + uint32_t v_rep2 = 0; + uint32_t v_rep3 = 0; + uint32_t v_reptmp = 0; + uint32_t v_rep = 0; + uint64_t v_pos = 0; + uint64_t v_pos_end = 0; + uint32_t v_lc = 0; + uint64_t v_lp_mask = 0; + uint64_t v_pb_mask = 0; + uint32_t v_prob = 0; + uint32_t v_threshold = 0; + uint32_t v_tree_node = 0; + uint8_t v_prev_byte = 0; + uint32_t v_match_byte = 0; + uint32_t v_match_cusp = 0; + uint32_t v_len_state = 0; + uint32_t v_slot = 0; + uint32_t v_len = 0; + uint32_t v_lanl_offset = 0; + uint32_t v_lanl_old_offset = 0; + uint32_t v_lanl_index = 0; + uint32_t v_num_extra_bits = 0; + uint32_t v_dist_extra_bits = 0; + uint32_t v_high_bit_was_on = 0; + uint32_t v_i = 0; + uint32_t v_index_ao00 = 0; + uint32_t v_index_ao41 = 0; + uint32_t v_index_lit = 0; + uint32_t v_index_len = 0; + uint32_t v_index_small_dist_base = 0; + uint32_t v_index_small_dist_extra = 0; + uint32_t v_index_small_dist = 0; + uint32_t v_index_large_dist = 0; + uint32_t v_dist = 0; + uint32_t v_adj_dist = 0; + uint64_t v_wb_index = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + v_prev_byte = self->private_impl.f_stashed_bytes[0u]; + v_match_byte = ((uint32_t)(self->private_impl.f_stashed_bytes[1u])); + v_bits = self->private_impl.f_stashed_bits; + v_range = self->private_impl.f_stashed_range; + v_state = self->private_impl.f_stashed_state; + v_rep0 = self->private_impl.f_stashed_rep0; + v_rep1 = self->private_impl.f_stashed_rep1; + v_rep2 = self->private_impl.f_stashed_rep2; + v_rep3 = self->private_impl.f_stashed_rep3; + v_pos = self->private_impl.f_stashed_pos; + v_pos_end = self->private_impl.f_stashed_pos_end; + v_lc = self->private_impl.f_lc; + v_lp_mask = ((((uint64_t)(1u)) << self->private_impl.f_lp) - 1u); + v_pb_mask = ((((uint64_t)(1u)) << self->private_impl.f_pb) - 1u); + while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 282u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 48u)) { + if (v_pos >= v_pos_end) { + self->private_impl.f_end_of_chunk = true; + break; + } + v_index_ao00 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); + v_prob = ((uint32_t)(self->private_data.f_probs_ao00[v_index_ao00])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_lit = (15u & ((((uint32_t)((v_pos & v_lp_mask))) << v_lc) | (((uint32_t)(v_prev_byte)) >> (8u - v_lc)))); + v_lanl_offset = 0u; + if (v_state >= 7u) { + v_lanl_offset = 256u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_match_byte <<= 1u; + v_lanl_old_offset = v_lanl_offset; + v_lanl_offset &= v_match_byte; + v_lanl_index = (v_lanl_offset + v_lanl_old_offset + v_tree_node); + v_prob = ((uint32_t)(self->private_data.f_probs_lit[v_index_lit][v_lanl_index])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_lanl_offset = ((v_lanl_offset ^ v_lanl_old_offset) & 256u); + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_lanl_index] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_lanl_index] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_prev_byte = ((uint8_t)(v_tree_node)); + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_prev_byte), iop_a_dst += 1); + v_pos += 1u; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LITERAL[v_state])); + continue; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_ao20[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len_state = ((uint32_t)(WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[(v_tree_node & 7u)])); + v_len = ((v_tree_node & 7u) + 2u); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 10u); + v_len_state = 3u; + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_high[0u][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 255u) + 18u); + v_len_state = 3u; + } while (0); + v_slot = 1u; + while (v_slot < 64u) { + v_prob = ((uint32_t)(self->private_data.f_probs_slot[v_len_state][v_slot])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); + v_slot = (v_slot << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); + v_slot = ((v_slot << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_slot &= 63u; + v_rep = v_slot; + if (v_slot < 4u) { + } else if (v_slot < 14u) { + v_num_extra_bits = ((v_slot >> 1u) - 1u); + v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); + v_index_small_dist_base = ((uint32_t)(v_rep - v_slot)); + v_index_small_dist_extra = 1u; + v_dist_extra_bits = 0u; + v_i = 0u; + while (v_i < v_num_extra_bits) { + v_index_small_dist = (((uint32_t)(v_index_small_dist_base + v_index_small_dist_extra)) & 127u); + v_prob = ((uint32_t)(self->private_data.f_probs_small_dist[v_index_small_dist])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); + v_index_small_dist_extra = ((uint32_t)(v_index_small_dist_extra << 1u)); + v_i += 1u; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); + v_index_small_dist_extra = (((uint32_t)(v_index_small_dist_extra << 1u)) | 1u); + v_dist_extra_bits |= (((uint32_t)(1u)) << v_i); + v_i += 1u; + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_rep += v_dist_extra_bits; + } else { + v_num_extra_bits = ((v_slot >> 1u) - 1u); + v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); + v_dist_extra_bits = 0u; + while (true) { + v_range >>= 1u; + v_bits -= v_range; + v_high_bit_was_on = ((uint32_t)(0u - (v_bits >> 31u))); + v_bits += (v_range & v_high_bit_was_on); + v_dist_extra_bits = (((uint32_t)(v_dist_extra_bits << 1u)) | (((uint32_t)(v_high_bit_was_on + 1u)) & 1u)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_num_extra_bits -= 1u; + if (v_num_extra_bits <= 4u) { + break; + } + } + v_dist_extra_bits <<= 4u; + v_index_large_dist = 1u; + while (true) { + v_prob = ((uint32_t)(self->private_data.f_probs_large_dist[v_index_large_dist])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); + v_index_large_dist = (15u & ((uint32_t)(v_index_large_dist << 1u))); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); + v_index_large_dist = (15u & (((uint32_t)(v_index_large_dist << 1u)) | 1u)); + v_dist_extra_bits |= (((uint32_t)(1u)) << (4u - v_num_extra_bits)); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_num_extra_bits -= 1u; + if (v_num_extra_bits <= 0u) { + break; + } + } + v_rep += v_dist_extra_bits; + } + if (v_rep >= 4294967295u) { + self->private_impl.f_end_of_chunk = true; + goto label__outer__break; + } + v_rep3 = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_rep; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_MATCH[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao40[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + v_index_ao41 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); + v_prob = ((uint32_t)(self->private_data.f_probs_ao41[v_index_ao41])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_len = 1u; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_SHORTREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao60[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao63[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep3; + v_rep3 = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } + } + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 2u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 10u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_high[0u][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 255u) + 18u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + } while (0); + } while (0); + v_dist = (v_rep0 + 1u); + if ((((uint64_t)(v_dist)) > v_pos) || (((uint64_t)(v_dist)) > ((uint64_t)(self->private_impl.f_dict_size)))) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + goto exit; + } + v_pos += ((uint64_t)(v_len)); + if (((uint64_t)(v_dist)) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_adj_dist = ((uint32_t)((((uint64_t)(v_dist)) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_adj_dist > self->private_impl.f_dict_seen) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + goto exit; + } + v_wb_index = ((uint64_t)(((uint64_t)(self->private_impl.f_dict_workbuf_index)) - ((uint64_t)(v_adj_dist)))); + while (v_wb_index >= 9223372036854775808u) { + v_wb_index += ((uint64_t)(self->private_impl.f_dict_size)); + } + if (v_wb_index >= ((uint64_t)(a_workbuf.len))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + if (v_len < v_adj_dist) { + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,(v_len + 1u), wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_match_byte = ((uint32_t)(iop_a_dst[-1])); + iop_a_dst--; + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_prev_byte = iop_a_dst[-1]; + continue; + } else if (v_len == v_adj_dist) { + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_len, wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + wuffs_private_impl__io_writer__limited_copy_u32_from_history( + &iop_a_dst, io0_a_dst, io2_a_dst, 1u, v_dist); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_match_byte = ((uint32_t)(iop_a_dst[-1])); + iop_a_dst--; + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_prev_byte = iop_a_dst[-1]; + continue; + } + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_adj_dist, wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + v_len -= v_adj_dist; + if ((((uint64_t)(v_len)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_len + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)(v_dist)) > ((uint64_t)(iop_a_dst - io0_a_dst)))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + } + if (v_dist >= 8u) { + v_match_cusp = wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast_return_cusp( + &iop_a_dst, io0_a_dst, io2_a_dst, v_len, v_dist); + v_match_byte = (v_match_cusp >> 8u); + v_prev_byte = ((uint8_t)(v_match_cusp)); + } else { + v_match_cusp = wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp( + &iop_a_dst, io0_a_dst, io2_a_dst, v_len, v_dist); + v_match_byte = (v_match_cusp >> 8u); + v_prev_byte = ((uint8_t)(v_match_cusp)); + } + } + label__outer__break:; + self->private_impl.f_stashed_bytes[0u] = v_prev_byte; + self->private_impl.f_stashed_bytes[1u] = ((uint8_t)(v_match_byte)); + self->private_impl.f_stashed_bits = v_bits; + self->private_impl.f_stashed_range = v_range; + self->private_impl.f_stashed_state = v_state; + self->private_impl.f_stashed_rep0 = v_rep0; + self->private_impl.f_stashed_rep1 = v_rep1; + self->private_impl.f_stashed_rep2 = v_rep2; + self->private_impl.f_stashed_rep3 = v_rep3; + self->private_impl.f_stashed_pos = v_pos; + self->private_impl.f_stashed_pos_end = v_pos_end; + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func lzma.decoder.decode_bitstream_slow + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream_slow( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_bits = 0; + uint32_t v_range = 0; + uint32_t v_state = 0; + uint32_t v_rep0 = 0; + uint32_t v_rep1 = 0; + uint32_t v_rep2 = 0; + uint32_t v_rep3 = 0; + uint32_t v_reptmp = 0; + uint32_t v_rep = 0; + uint64_t v_pos = 0; + uint64_t v_pos_end = 0; + uint32_t v_lc = 0; + uint64_t v_lp_mask = 0; + uint64_t v_pb_mask = 0; + uint32_t v_prob = 0; + uint32_t v_threshold = 0; + uint32_t v_tree_node = 0; + uint8_t v_prev_byte = 0; + uint32_t v_match_byte = 0; + uint32_t v_match_cusp = 0; + uint32_t v_len_state = 0; + uint32_t v_slot = 0; + uint32_t v_len = 0; + uint32_t v_lanl_offset = 0; + uint32_t v_lanl_old_offset = 0; + uint32_t v_lanl_index = 0; + uint32_t v_num_extra_bits = 0; + uint32_t v_dist_extra_bits = 0; + uint32_t v_high_bit_was_on = 0; + uint32_t v_i = 0; + uint32_t v_index_ao00 = 0; + uint32_t v_index_ao41 = 0; + uint32_t v_index_lit = 0; + uint32_t v_index_len = 0; + uint32_t v_index_small_dist_base = 0; + uint32_t v_index_small_dist_extra = 0; + uint32_t v_index_small_dist = 0; + uint32_t v_index_large_dist = 0; + uint32_t v_dist = 0; + uint32_t v_adj_dist = 0; + uint64_t v_wb_index = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_bitstream_slow; + if (coro_susp_point) { + v_bits = self->private_data.s_decode_bitstream_slow.v_bits; + v_range = self->private_data.s_decode_bitstream_slow.v_range; + v_state = self->private_data.s_decode_bitstream_slow.v_state; + v_rep0 = self->private_data.s_decode_bitstream_slow.v_rep0; + v_rep1 = self->private_data.s_decode_bitstream_slow.v_rep1; + v_rep2 = self->private_data.s_decode_bitstream_slow.v_rep2; + v_rep3 = self->private_data.s_decode_bitstream_slow.v_rep3; + v_rep = self->private_data.s_decode_bitstream_slow.v_rep; + v_pos = self->private_data.s_decode_bitstream_slow.v_pos; + v_pos_end = self->private_data.s_decode_bitstream_slow.v_pos_end; + v_lc = self->private_data.s_decode_bitstream_slow.v_lc; + v_lp_mask = self->private_data.s_decode_bitstream_slow.v_lp_mask; + v_pb_mask = self->private_data.s_decode_bitstream_slow.v_pb_mask; + v_tree_node = self->private_data.s_decode_bitstream_slow.v_tree_node; + v_prev_byte = self->private_data.s_decode_bitstream_slow.v_prev_byte; + v_match_byte = self->private_data.s_decode_bitstream_slow.v_match_byte; + v_len_state = self->private_data.s_decode_bitstream_slow.v_len_state; + v_slot = self->private_data.s_decode_bitstream_slow.v_slot; + v_len = self->private_data.s_decode_bitstream_slow.v_len; + v_lanl_offset = self->private_data.s_decode_bitstream_slow.v_lanl_offset; + v_num_extra_bits = self->private_data.s_decode_bitstream_slow.v_num_extra_bits; + v_dist_extra_bits = self->private_data.s_decode_bitstream_slow.v_dist_extra_bits; + v_i = self->private_data.s_decode_bitstream_slow.v_i; + v_index_lit = self->private_data.s_decode_bitstream_slow.v_index_lit; + v_index_len = self->private_data.s_decode_bitstream_slow.v_index_len; + v_index_small_dist_base = self->private_data.s_decode_bitstream_slow.v_index_small_dist_base; + v_index_small_dist_extra = self->private_data.s_decode_bitstream_slow.v_index_small_dist_extra; + v_index_large_dist = self->private_data.s_decode_bitstream_slow.v_index_large_dist; + v_dist = self->private_data.s_decode_bitstream_slow.v_dist; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + v_prev_byte = self->private_impl.f_stashed_bytes[0u]; + v_match_byte = ((uint32_t)(self->private_impl.f_stashed_bytes[1u])); + v_bits = self->private_impl.f_stashed_bits; + v_range = self->private_impl.f_stashed_range; + v_state = self->private_impl.f_stashed_state; + v_rep0 = self->private_impl.f_stashed_rep0; + v_rep1 = self->private_impl.f_stashed_rep1; + v_rep2 = self->private_impl.f_stashed_rep2; + v_rep3 = self->private_impl.f_stashed_rep3; + v_pos = self->private_impl.f_stashed_pos; + v_pos_end = self->private_impl.f_stashed_pos_end; + v_lc = self->private_impl.f_lc; + v_lp_mask = ((((uint64_t)(1u)) << self->private_impl.f_lp) - 1u); + v_pb_mask = ((((uint64_t)(1u)) << self->private_impl.f_pb) - 1u); + while ( ! (self->private_impl.p_decode_bitstream_slow != 0)) { + if (v_pos >= v_pos_end) { + self->private_impl.f_end_of_chunk = true; + break; + } + v_index_ao00 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); + v_prob = ((uint32_t)(self->private_data.f_probs_ao00[v_index_ao00])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_lit = (15u & ((((uint32_t)((v_pos & v_lp_mask))) << v_lc) | (((uint32_t)(v_prev_byte)) >> (8u - v_lc)))); + if (v_state >= 7u) { + v_lanl_offset = 256u; + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_match_byte <<= 1u; + v_lanl_old_offset = v_lanl_offset; + v_lanl_offset &= v_match_byte; + v_lanl_index = (v_lanl_offset + v_lanl_old_offset + v_tree_node); + v_prob = ((uint32_t)(self->private_data.f_probs_lit[v_index_lit][v_lanl_index])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_lanl_offset = ((v_lanl_offset ^ v_lanl_old_offset) & 256u); + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_lanl_index] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_lanl_index] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + } else { + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_lit[v_index_lit][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + } + v_prev_byte = ((uint8_t)(v_tree_node)); + self->private_data.s_decode_bitstream_slow.scratch = v_prev_byte; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (iop_a_dst == io2_a_dst) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + goto suspend; + } + *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_bitstream_slow.scratch)); + v_pos += 1u; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LITERAL[v_state])); + continue; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_ao20[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len_state = ((uint32_t)(WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[(v_tree_node & 7u)])); + v_len = ((v_tree_node & 7u) + 2u); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_7 = *iop_a_src++; + v_c8 = t_7; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + v_c8 = t_8; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_9 = *iop_a_src++; + v_c8 = t_9; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 10u); + v_len_state = 3u; + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_10 = *iop_a_src++; + v_c8 = t_10; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_high[0u][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_11 = *iop_a_src++; + v_c8 = t_11; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 255u) + 18u); + v_len_state = 3u; + } while (0); + v_slot = 1u; + while (v_slot < 64u) { + v_prob = ((uint32_t)(self->private_data.f_probs_slot[v_len_state][v_slot])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); + v_slot = (v_slot << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); + v_slot = ((v_slot << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_12 = *iop_a_src++; + v_c8 = t_12; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_slot &= 63u; + v_rep = v_slot; + if (v_slot < 4u) { + } else if (v_slot < 14u) { + v_num_extra_bits = ((v_slot >> 1u) - 1u); + v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); + v_index_small_dist_base = ((uint32_t)(v_rep - v_slot)); + v_index_small_dist_extra = 1u; + v_dist_extra_bits = 0u; + v_i = 0u; + while (v_i < v_num_extra_bits) { + v_index_small_dist = (((uint32_t)(v_index_small_dist_base + v_index_small_dist_extra)) & 127u); + v_prob = ((uint32_t)(self->private_data.f_probs_small_dist[v_index_small_dist])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); + v_index_small_dist_extra = ((uint32_t)(v_index_small_dist_extra << 1u)); + v_i += 1u; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); + v_index_small_dist_extra = (((uint32_t)(v_index_small_dist_extra << 1u)) | 1u); + v_dist_extra_bits |= (((uint32_t)(1u)) << v_i); + v_i += 1u; + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_13 = *iop_a_src++; + v_c8 = t_13; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_rep += v_dist_extra_bits; + } else { + v_num_extra_bits = ((v_slot >> 1u) - 1u); + v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); + v_dist_extra_bits = 0u; + while (true) { + v_range >>= 1u; + v_bits -= v_range; + v_high_bit_was_on = ((uint32_t)(0u - (v_bits >> 31u))); + v_bits += (v_range & v_high_bit_was_on); + v_dist_extra_bits = (((uint32_t)(v_dist_extra_bits << 1u)) | (((uint32_t)(v_high_bit_was_on + 1u)) & 1u)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_14 = *iop_a_src++; + v_c8 = t_14; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_num_extra_bits -= 1u; + if (v_num_extra_bits <= 4u) { + break; + } + } + v_dist_extra_bits <<= 4u; + v_index_large_dist = 1u; + while (true) { + v_prob = ((uint32_t)(self->private_data.f_probs_large_dist[v_index_large_dist])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); + v_index_large_dist = (15u & ((uint32_t)(v_index_large_dist << 1u))); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); + v_index_large_dist = (15u & (((uint32_t)(v_index_large_dist << 1u)) | 1u)); + v_dist_extra_bits |= (((uint32_t)(1u)) << (4u - v_num_extra_bits)); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_15 = *iop_a_src++; + v_c8 = t_15; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_num_extra_bits -= 1u; + if (v_num_extra_bits <= 0u) { + break; + } + } + v_rep += v_dist_extra_bits; + } + if (v_rep >= 4294967295u) { + self->private_impl.f_end_of_chunk = true; + goto label__outer__break; + } + v_rep3 = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_rep; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_MATCH[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_16 = *iop_a_src++; + v_c8 = t_16; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao40[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_17 = *iop_a_src++; + v_c8 = t_17; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_ao41 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); + v_prob = ((uint32_t)(self->private_data.f_probs_ao41[v_index_ao41])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_18 = *iop_a_src++; + v_c8 = t_18; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_len = 1u; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_SHORTREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_19 = *iop_a_src++; + v_c8 = t_19; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_20 = *iop_a_src++; + v_c8 = t_20; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao60[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_21 = *iop_a_src++; + v_c8 = t_21; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_22 = *iop_a_src++; + v_c8 = t_22; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao63[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(25); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_23 = *iop_a_src++; + v_c8 = t_23; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(26); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_24 = *iop_a_src++; + v_c8 = t_24; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep3; + v_rep3 = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } + } + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(27); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_25 = *iop_a_src++; + v_c8 = t_25; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(28); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_26 = *iop_a_src++; + v_c8 = t_26; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 2u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(29); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_27 = *iop_a_src++; + v_c8 = t_27; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(30); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_28 = *iop_a_src++; + v_c8 = t_28; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(31); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_29 = *iop_a_src++; + v_c8 = t_29; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 10u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(32); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_30 = *iop_a_src++; + v_c8 = t_30; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_high[0u][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(33); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_31 = *iop_a_src++; + v_c8 = t_31; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 255u) + 18u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + } while (0); + } while (0); + v_dist = (v_rep0 + 1u); + if ((((uint64_t)(v_dist)) > v_pos) || (((uint64_t)(v_dist)) > ((uint64_t)(self->private_impl.f_dict_size)))) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + goto exit; + } + v_pos += ((uint64_t)(v_len)); + while (274u > ((uint64_t)(io2_a_dst - iop_a_dst))) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(34); + } + if (((uint64_t)(v_dist)) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_adj_dist = ((uint32_t)((((uint64_t)(v_dist)) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_adj_dist > self->private_impl.f_dict_seen) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + goto exit; + } + v_wb_index = ((uint64_t)(((uint64_t)(self->private_impl.f_dict_workbuf_index)) - ((uint64_t)(v_adj_dist)))); + while (v_wb_index >= 9223372036854775808u) { + v_wb_index += ((uint64_t)(self->private_impl.f_dict_size)); + } + if (v_wb_index >= ((uint64_t)(a_workbuf.len))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + if (v_len < v_adj_dist) { + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,(v_len + 1u), wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_match_byte = ((uint32_t)(iop_a_dst[-1])); + iop_a_dst--; + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_prev_byte = iop_a_dst[-1]; + continue; + } else if (v_len == v_adj_dist) { + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_len, wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + wuffs_private_impl__io_writer__limited_copy_u32_from_history( + &iop_a_dst, io0_a_dst, io2_a_dst, 1u, v_dist); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_match_byte = ((uint32_t)(iop_a_dst[-1])); + iop_a_dst--; + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_prev_byte = iop_a_dst[-1]; + continue; + } + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_adj_dist, wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + v_len -= v_adj_dist; + if ((((uint64_t)(v_len)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)(v_dist)) > ((uint64_t)(iop_a_dst - io0_a_dst)))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + } + v_match_cusp = wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp( + &iop_a_dst, io0_a_dst, io2_a_dst, v_len, v_dist); + v_match_byte = (v_match_cusp >> 8u); + v_prev_byte = ((uint8_t)(v_match_cusp)); + } + label__outer__break:; + self->private_impl.f_stashed_bytes[0u] = v_prev_byte; + self->private_impl.f_stashed_bytes[1u] = ((uint8_t)(v_match_byte)); + self->private_impl.f_stashed_bits = v_bits; + self->private_impl.f_stashed_range = v_range; + self->private_impl.f_stashed_state = v_state; + self->private_impl.f_stashed_rep0 = v_rep0; + self->private_impl.f_stashed_rep1 = v_rep1; + self->private_impl.f_stashed_rep2 = v_rep2; + self->private_impl.f_stashed_rep3 = v_rep3; + self->private_impl.f_stashed_pos = v_pos; + self->private_impl.f_stashed_pos_end = v_pos_end; + + ok: + self->private_impl.p_decode_bitstream_slow = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_bitstream_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_bitstream_slow.v_bits = v_bits; + self->private_data.s_decode_bitstream_slow.v_range = v_range; + self->private_data.s_decode_bitstream_slow.v_state = v_state; + self->private_data.s_decode_bitstream_slow.v_rep0 = v_rep0; + self->private_data.s_decode_bitstream_slow.v_rep1 = v_rep1; + self->private_data.s_decode_bitstream_slow.v_rep2 = v_rep2; + self->private_data.s_decode_bitstream_slow.v_rep3 = v_rep3; + self->private_data.s_decode_bitstream_slow.v_rep = v_rep; + self->private_data.s_decode_bitstream_slow.v_pos = v_pos; + self->private_data.s_decode_bitstream_slow.v_pos_end = v_pos_end; + self->private_data.s_decode_bitstream_slow.v_lc = v_lc; + self->private_data.s_decode_bitstream_slow.v_lp_mask = v_lp_mask; + self->private_data.s_decode_bitstream_slow.v_pb_mask = v_pb_mask; + self->private_data.s_decode_bitstream_slow.v_tree_node = v_tree_node; + self->private_data.s_decode_bitstream_slow.v_prev_byte = v_prev_byte; + self->private_data.s_decode_bitstream_slow.v_match_byte = v_match_byte; + self->private_data.s_decode_bitstream_slow.v_len_state = v_len_state; + self->private_data.s_decode_bitstream_slow.v_slot = v_slot; + self->private_data.s_decode_bitstream_slow.v_len = v_len; + self->private_data.s_decode_bitstream_slow.v_lanl_offset = v_lanl_offset; + self->private_data.s_decode_bitstream_slow.v_num_extra_bits = v_num_extra_bits; + self->private_data.s_decode_bitstream_slow.v_dist_extra_bits = v_dist_extra_bits; + self->private_data.s_decode_bitstream_slow.v_i = v_i; + self->private_data.s_decode_bitstream_slow.v_index_lit = v_index_lit; + self->private_data.s_decode_bitstream_slow.v_index_len = v_index_len; + self->private_data.s_decode_bitstream_slow.v_index_small_dist_base = v_index_small_dist_base; + self->private_data.s_decode_bitstream_slow.v_index_small_dist_extra = v_index_small_dist_extra; + self->private_data.s_decode_bitstream_slow.v_index_large_dist = v_index_large_dist; + self->private_data.s_decode_bitstream_slow.v_dist = v_dist; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func lzma.decoder.add_history + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__add_history( + wuffs_lzma__decoder* self, + wuffs_base__slice_u8 a_hist, + wuffs_base__slice_u8 a_workbuf) { + uint64_t v_dict_workbuf_index = 0; + uint64_t v_dict_size = 0; + uint64_t v_hist_length = 0; + wuffs_base__slice_u8 v_s = {0}; + uint64_t v_n_copied = 0; + uint64_t v_n = 0; + + v_dict_workbuf_index = ((uint64_t)(self->private_impl.f_dict_workbuf_index)); + v_dict_size = ((uint64_t)(self->private_impl.f_dict_size)); + if (((uint64_t)(a_hist.len)) == 0u) { + return wuffs_base__make_status(NULL); + } + if (((uint64_t)(a_workbuf.len)) < (v_dict_size + 273u)) { + return wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + } + v_hist_length = ((uint64_t)(a_hist.len)); + if (v_hist_length > 4294967295u) { + self->private_impl.f_dict_seen = 4294967295u; + } else { + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dict_seen, ((uint32_t)(v_hist_length))); + } + v_s = a_hist; + if (((uint64_t)(v_s.len)) >= v_dict_size) { + v_s = wuffs_private_impl__slice_u8__suffix(v_s, v_dict_size); + wuffs_private_impl__slice_u8__copy_from_slice(a_workbuf, v_s); + self->private_impl.f_dict_workbuf_index = 0u; + } else if (v_dict_workbuf_index > v_dict_size) { + return wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + } else { + v_n_copied = wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__slice_u8__subslice_ij(a_workbuf, v_dict_workbuf_index, v_dict_size), v_s); + if (v_n_copied < ((uint64_t)(v_s.len))) { + v_n = wuffs_private_impl__slice_u8__copy_from_slice(a_workbuf, wuffs_base__slice_u8__subslice_i(v_s, v_n_copied)); + self->private_impl.f_dict_workbuf_index = ((uint32_t)(v_n)); + } else { + v_n = ((uint64_t)(v_dict_workbuf_index + v_n_copied)); + if (v_n < v_dict_size) { + self->private_impl.f_dict_workbuf_index = ((uint32_t)(v_n)); + } else { + self->private_impl.f_dict_workbuf_index = 0u; + } + } + } + if ((273u > v_dict_size) || (v_dict_size > ((uint64_t)(a_workbuf.len)))) { + return wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + } + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__slice_u8__subslice_i(a_workbuf, v_dict_size), wuffs_base__slice_u8__subslice_j(a_workbuf, 273u)); + return wuffs_base__make_status(NULL); +} + +// -------- func lzma.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_lzma__decoder__get_quirk( + const wuffs_lzma__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (a_key == 1348001792u) { + if (self->private_impl.f_allow_non_zero_initial_byte) { + return 1u; + } + } else if (a_key == 1348001793u) { + return ((uint64_t)(self->private_impl.f_format_extension)); + } + return 0u; +} + +// -------- func lzma.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzma__decoder__set_quirk( + wuffs_lzma__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + uint32_t v_v = 0; + uint32_t v_n = 0; + + if (a_key == 1348001792u) { + self->private_impl.f_allow_non_zero_initial_byte = (a_value > 0u); + } else if (a_key == 1348001793u) { + if (a_value == 0u) { + self->private_impl.f_format_extension = 0u; + return wuffs_base__make_status(NULL); + } else if ((a_value & 255u) == 1u) { + if ((a_value >> 8u) <= 255u) { + self->private_impl.f_format_extension = ((uint32_t)(a_value)); + v_v = (self->private_impl.f_format_extension >> 8u); + v_n = (((uint32_t)(1u)) << (v_v & 31u)); + wuffs_private_impl__u32__sat_sub_indirect(&v_n, ((v_n >> 4u) * ((v_v >> 5u) & 7u))); + if ((v_n < 4096u) || (536870912u < v_n)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_dict_size = v_n; + return wuffs_base__make_status(NULL); + } + } else if ((a_value & 255u) == 2u) { + if ((a_value >> 8u) <= 40u) { + self->private_impl.f_format_extension = ((uint32_t)(a_value)); + v_v = (self->private_impl.f_format_extension >> 8u); + if (v_v < 40u) { + self->private_impl.f_dict_size = ((2u | (v_v & 1u)) << ((v_v >> 1u) + 11u)); + } else { + self->private_impl.f_dict_size = 4294967295u; + } + return wuffs_base__make_status(NULL); + } + } + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func lzma.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzma__decoder__dst_history_retain_length( + const wuffs_lzma__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_base__utility__make_optional_u63(true, 0u); +} + +// -------- func lzma.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzma__decoder__workbuf_len( + const wuffs_lzma__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + uint64_t v_m = 0; + + if (self->private_impl.f_dict_size == 0u) { + return wuffs_base__utility__make_range_ii_u64(0u, 0u); + } + v_m = (((uint64_t)(self->private_impl.f_dict_size)) + 273u); + return wuffs_base__utility__make_range_ii_u64(v_m, v_m); +} + +// -------- func lzma.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzma__decoder__transform_io( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint64_t v_mark = 0; + wuffs_base__status v_dti_status = wuffs_base__make_status(NULL); + wuffs_base__status v_ah_status = wuffs_base__make_status(NULL); + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + + uint32_t coro_susp_point = self->private_impl.p_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + wuffs_base__status t_0 = wuffs_lzma__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + v_dti_status = t_0; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + } + if ( ! wuffs_base__status__is_suspension(&v_dti_status)) { + status = v_dti_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } else if ((v_dti_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_lzma__error__truncated_input); + goto exit; + } + v_ah_status = wuffs_lzma__decoder__add_history(self, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst), a_workbuf); + if (wuffs_base__status__is_error(&v_ah_status)) { + status = v_ah_status; + goto exit; + } + status = v_dti_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func lzma.decoder.do_transform_io + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__do_transform_io( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_header_byte = 0; + uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + uint8_t v_prop_byte = 0; + uint32_t v_lc = 0; + uint32_t v_lp = 0; + uint32_t v_pb = 0; + uint32_t v_length = 0; + uint32_t v_n_copied = 0; + uint64_t v_smark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; + if (coro_susp_point) { + v_header_byte = self->private_data.s_do_transform_io.v_header_byte; + v_length = self->private_data.s_do_transform_io.v_length; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_lzma2_need_prob_reset = true; + self->private_impl.f_lzma2_need_properties = true; + self->private_impl.f_lzma2_need_dict_reset = true; + while (true) { + if ((self->private_impl.f_format_extension & 255u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_prop_byte = t_0; + } + if (v_prop_byte >= 225u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_header); + goto exit; + } + v_lc = ((uint32_t)(((uint8_t)(v_prop_byte % 9u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_prop_byte /= 9u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_lp = ((uint32_t)(((uint8_t)(v_prop_byte % 5u)))); + v_pb = ((uint32_t)(((uint8_t)(v_prop_byte / 5u)))); + if ((v_lc + v_lp) > 4u) { + status = wuffs_base__make_status(wuffs_lzma__error__unsupported_properties); + goto exit; + } + self->private_impl.f_lc = wuffs_base__u32__min(v_lc, 4u); + self->private_impl.f_lp = v_lp; + self->private_impl.f_pb = v_pb; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_c32 = t_1; + } + self->private_impl.f_dict_size = wuffs_base__u32__max(v_c32, 4096u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + uint64_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_2 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 56) { + t_2 = ((uint64_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + self->private_impl.f_decoded_length = t_2; + } + if ((self->private_impl.f_decoded_length >= 9223372036854775808u) && (self->private_impl.f_decoded_length != 18446744073709551615u)) { + status = wuffs_base__make_status(wuffs_lzma__error__unsupported_decoded_length); + goto exit; + } + wuffs_lzma__decoder__initialize_probs(self); + } else if ((self->private_impl.f_format_extension & 255u) == 1u) { + self->private_impl.f_lc = 3u; + self->private_impl.f_lp = 0u; + self->private_impl.f_pb = 2u; + self->private_impl.f_decoded_length = 18446744073709551615u; + wuffs_lzma__decoder__initialize_probs(self); + } else { + while (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + } + if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) == 0u) { + iop_a_src += 1u; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_header_byte = t_3; + } + if (v_header_byte < 128u) { + if (v_header_byte < 2u) { + self->private_impl.f_lzma2_need_prob_reset = true; + self->private_impl.f_lzma2_need_properties = true; + self->private_impl.f_lzma2_need_dict_reset = false; + wuffs_lzma__decoder__initialize_dict(self); + } else if ((v_header_byte > 2u) || self->private_impl.f_lzma2_need_dict_reset) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + self->private_impl.f_prev_lzma2_chunk_was_uncompressed = true; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_4 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 8) { + t_4 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); + } + } + v_c32 = t_4; + } + v_length = (1u + v_c32); + while (true) { + v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_reader( + &iop_a_dst, io2_a_dst,v_length, &iop_a_src, io2_a_src); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_stashed_pos, ((uint64_t)(v_n_copied))); + if (v_length <= v_n_copied) { + break; + } + v_length -= v_n_copied; + if (((uint64_t)(io2_a_dst - iop_a_dst)) == 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + } else { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + } + } + continue; + } + self->private_impl.f_decoded_length = ((uint64_t)(v_header_byte)); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_5 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 8) { + t_5 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } + } + v_c32 = t_5; + } + self->private_impl.f_decoded_length = (((self->private_impl.f_decoded_length & 31u) << 16u) + ((uint64_t)((1u + v_c32)))); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + uint32_t t_6; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_6 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); + if (num_bits_6 == 8) { + t_6 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)); + } + } + v_c32 = t_6; + } + self->private_impl.f_lzma2_encoded_length_want = ((uint64_t)((1u + v_c32))); + if (v_header_byte >= 160u) { + wuffs_lzma__decoder__initialize_probs(self); + self->private_impl.f_lzma2_need_prob_reset = false; + } + if (v_header_byte >= 192u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_7 = *iop_a_src++; + v_prop_byte = t_7; + } + if (v_prop_byte >= 225u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + v_lc = ((uint32_t)(((uint8_t)(v_prop_byte % 9u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_prop_byte /= 9u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_lp = ((uint32_t)(((uint8_t)(v_prop_byte % 5u)))); + v_pb = ((uint32_t)(((uint8_t)(v_prop_byte / 5u)))); + if ((v_lc + v_lp) > 4u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + self->private_impl.f_lc = wuffs_base__u32__min(v_lc, 4u); + self->private_impl.f_lp = v_lp; + self->private_impl.f_pb = v_pb; + self->private_impl.f_lzma2_need_properties = false; + } + if (v_header_byte >= 224u) { + self->private_impl.f_lzma2_need_dict_reset = false; + wuffs_lzma__decoder__initialize_dict(self); + } else if (self->private_impl.f_prev_lzma2_chunk_was_uncompressed) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + status = wuffs_lzma__decoder__update_stashed_bytes(self, a_dst, a_workbuf); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (status.repr) { + goto suspend; + } + } + self->private_impl.f_prev_lzma2_chunk_was_uncompressed = false; + if (self->private_impl.f_lzma2_need_prob_reset || self->private_impl.f_lzma2_need_properties || self->private_impl.f_lzma2_need_dict_reset) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + v_c8 = t_8; + } + if ((v_c8 != 0u) && ! self->private_impl.f_allow_non_zero_initial_byte) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_code); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + uint32_t t_9; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_9 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_9 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_9); + if (num_bits_9 == 24) { + t_9 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_9 += 8u; + *scratch |= ((uint64_t)(num_bits_9)); + } + } + self->private_impl.f_stashed_bits = t_9; + } + if (self->private_impl.f_stashed_bits == 4294967295u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_code); + goto exit; + } + self->private_impl.f_stashed_range = 4294967295u; + self->private_impl.f_stashed_pos_end = wuffs_base__u64__sat_add(self->private_impl.f_stashed_pos, self->private_impl.f_decoded_length); + if ((self->private_impl.f_stashed_pos_end == 18446744073709551615u) && (self->private_impl.f_decoded_length != 18446744073709551615u)) { + status = wuffs_base__make_status(wuffs_lzma__error__unsupported_decoded_length); + goto exit; + } + self->private_impl.f_lzma2_encoded_length_have = 5u; + while (((uint64_t)(a_workbuf.len)) < (((uint64_t)(self->private_impl.f_dict_size)) + 273u)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_workbuf); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(21); + } + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_10 = wuffs_lzma__decoder__decode_bitstream(self, a_dst, a_src, a_workbuf); + v_status = t_10; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_lzma2_encoded_length_have, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(22); + } + if (self->private_impl.f_decoded_length == 18446744073709551615u) { + if (self->private_impl.f_stashed_bits != 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_bitstream_trailer); + goto exit; + } + } else if (self->private_impl.f_stashed_pos != self->private_impl.f_stashed_pos_end) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_decoded_length); + goto exit; + } else if (self->private_impl.f_stashed_bits != 0u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + status = wuffs_lzma__decoder__decode_optional_end_of_stream(self, a_src, a_workbuf); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_stashed_bits != 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_bitstream_trailer); + goto exit; + } + } + if ((self->private_impl.f_format_extension & 255u) < 2u) { + break; + } else if (self->private_impl.f_lzma2_encoded_length_have != self->private_impl.f_lzma2_encoded_length_want) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + } + + ok: + self->private_impl.p_do_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_transform_io.v_header_byte = v_header_byte; + self->private_data.s_do_transform_io.v_length = v_length; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func lzma.decoder.decode_bitstream + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_bitstream; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_end_of_chunk = false; + while (true) { + v_status = wuffs_lzma__decoder__decode_bitstream_fast(self, a_dst, a_src, a_workbuf); + if (wuffs_base__status__is_error(&v_status)) { + status = v_status; + goto exit; + } + if (self->private_impl.f_end_of_chunk) { + break; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_lzma__decoder__decode_bitstream_slow(self, a_dst, a_src, a_workbuf); + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_end_of_chunk) { + break; + } + } + + goto ok; + ok: + self->private_impl.p_decode_bitstream = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_bitstream = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func lzma.decoder.update_stashed_bytes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__update_stashed_bytes( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_dist = 0; + uint32_t v_which = 0; + uint32_t v_adj_dist = 0; + uint64_t v_wb_index = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + + uint32_t coro_susp_point = self->private_impl.p_update_stashed_bytes; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + v_dist = 1u; + v_which = 0u; + while (v_which < 2u) { + if (((uint64_t)(v_dist)) <= ((uint64_t)(iop_a_dst - io0_a_dst))) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history( + &iop_a_dst, io0_a_dst, io2_a_dst, 1u, v_dist); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + self->private_impl.f_stashed_bytes[v_which] = iop_a_dst[-1]; + iop_a_dst--; + } else { + v_adj_dist = ((uint32_t)((((uint64_t)(v_dist)) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + v_wb_index = ((uint64_t)(((uint64_t)(self->private_impl.f_dict_workbuf_index)) - ((uint64_t)(v_adj_dist)))); + while (v_wb_index >= 9223372036854775808u) { + v_wb_index += ((uint64_t)(self->private_impl.f_dict_size)); + } + if (v_wb_index >= ((uint64_t)(a_workbuf.len))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + self->private_impl.f_stashed_bytes[v_which] = a_workbuf.ptr[v_wb_index]; + } + v_dist = (1u + self->private_impl.f_stashed_rep0); + v_which += 1u; + } + + ok: + self->private_impl.p_update_stashed_bytes = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_update_stashed_bytes = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + + return status; +} + +// -------- func lzma.decoder.decode_optional_end_of_stream + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_optional_end_of_stream( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_w = &u_w; + uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_optional_end_of_stream; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_stashed_pos_end = 18446744073709551615u; + while (true) { + { + wuffs_base__io_buffer* o_0_v_w = v_w; + uint8_t* o_0_iop_v_w = iop_v_w; + uint8_t* o_0_io0_v_w = io0_v_w; + uint8_t* o_0_io1_v_w = io1_v_w; + uint8_t* o_0_io2_v_w = io2_v_w; + v_w = wuffs_private_impl__io_writer__set( + &u_w, + &iop_v_w, + &io0_v_w, + &io1_v_w, + &io2_v_w, + wuffs_base__utility__empty_slice_u8(), + 0u); + { + wuffs_base__status t_0 = wuffs_lzma__decoder__decode_bitstream_slow(self, v_w, a_src, a_workbuf); + v_status = t_0; + } + v_w = o_0_v_w; + iop_v_w = o_0_iop_v_w; + io0_v_w = o_0_io0_v_w; + io1_v_w = o_0_io1_v_w; + io2_v_w = o_0_io2_v_w; + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (v_status.repr == wuffs_base__suspension__short_write) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_bitstream_trailer); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + self->private_impl.f_stashed_pos_end = self->private_impl.f_stashed_pos; + + ok: + self->private_impl.p_decode_optional_end_of_stream = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_optional_end_of_stream = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func lzma.decoder.initialize_dict + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzma__decoder__initialize_dict( + wuffs_lzma__decoder* self) { + self->private_impl.f_dict_workbuf_index = 0u; + self->private_impl.f_dict_seen = 0u; + self->private_impl.f_stashed_bytes[0u] = 0u; + self->private_impl.f_stashed_bytes[1u] = 0u; + self->private_impl.f_stashed_pos = 0u; + return wuffs_base__make_empty_struct(); +} + +// -------- func lzma.decoder.initialize_probs + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzma__decoder__initialize_probs( + wuffs_lzma__decoder* self) { + uint32_t v_i = 0; + uint32_t v_j = 0; + + v_i = 0u; + while (v_i < 192u) { + self->private_data.f_probs_ao00[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 12u) { + self->private_data.f_probs_ao20[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 12u) { + self->private_data.f_probs_ao40[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 192u) { + self->private_data.f_probs_ao41[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 12u) { + self->private_data.f_probs_ao60[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 12u) { + self->private_data.f_probs_ao63[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 8u) { + self->private_data.f_probs_match_len_low[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 8u) { + self->private_data.f_probs_match_len_mid[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 256u) { + self->private_data.f_probs_match_len_high[0u][v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 8u) { + self->private_data.f_probs_longrep_len_low[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 8u) { + self->private_data.f_probs_longrep_len_mid[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 256u) { + self->private_data.f_probs_longrep_len_high[0u][v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 4u) { + v_j = 0u; + while (v_j < 64u) { + self->private_data.f_probs_slot[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 128u) { + self->private_data.f_probs_small_dist[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + self->private_data.f_probs_large_dist[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 768u) { + self->private_data.f_probs_lit[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + self->private_impl.f_stashed_state = 0u; + self->private_impl.f_stashed_rep0 = 0u; + self->private_impl.f_stashed_rep1 = 0u; + self->private_impl.f_stashed_rep2 = 0u; + self->private_impl.f_stashed_rep3 = 0u; + return wuffs_base__make_empty_struct(); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZIP) + +// ---------------- Status Codes Implementations + +const char wuffs_lzip__error__bad_checksum[] = "#lzip: bad checksum"; +const char wuffs_lzip__error__bad_footer[] = "#lzip: bad footer"; +const char wuffs_lzip__error__bad_header[] = "#lzip: bad header"; +const char wuffs_lzip__error__truncated_input[] = "#lzip: truncated input"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzip__decoder__do_transform_io( + wuffs_lzip__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_lzip__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_lzip__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_lzip__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_lzip__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_lzip__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzip__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_lzip__decoder__initialize( + wuffs_lzip__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + { + wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( + &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_lzma__decoder__initialize( + &self->private_data.f_lzma, sizeof(self->private_data.f_lzma), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_lzip__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_lzip__decoder* +wuffs_lzip__decoder__alloc(void) { + wuffs_lzip__decoder* x = + (wuffs_lzip__decoder*)(calloc(1, sizeof(wuffs_lzip__decoder))); + if (!x) { + return NULL; + } + if (wuffs_lzip__decoder__initialize( + x, sizeof(wuffs_lzip__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_lzip__decoder(void) { + return sizeof(wuffs_lzip__decoder); +} + +// ---------------- Function Implementations + +// -------- func lzip.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_lzip__decoder__get_quirk( + const wuffs_lzip__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + return 1u; + } + return 0u; +} + +// -------- func lzip.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzip__decoder__set_quirk( + wuffs_lzip__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func lzip.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzip__decoder__dst_history_retain_length( + const wuffs_lzip__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_lzma__decoder__dst_history_retain_length(&self->private_data.f_lzma); +} + +// -------- func lzip.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzip__decoder__workbuf_len( + const wuffs_lzip__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_lzma__decoder__workbuf_len(&self->private_data.f_lzma); +} + +// -------- func lzip.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzip__decoder__transform_io( + wuffs_lzip__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_lzip__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_lzip__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func lzip.decoder.do_transform_io + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzip__decoder__do_transform_io( + wuffs_lzip__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + uint64_t v_c64 = 0; + uint64_t v_dmark = 0; + uint64_t v_smark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_checksum_want = 0; + uint32_t v_checksum_have = 0; + uint64_t v_size_want = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 5)) { + t_0 = ((uint64_t)(wuffs_base__peek_u40le__no_bounds_check(iop_a_src))); + iop_a_src += 5; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 32) { + t_0 = ((uint64_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_c64 = t_0; + } + if (v_c64 != 5641951820u) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + v_status = wuffs_lzma__decoder__set_quirk(&self->private_data.f_lzma, 1348001793u, (1u | (((uint64_t)(v_c8)) << 8u))); + if ( ! wuffs_base__status__is_ok(&v_status)) { + if (v_status.repr == wuffs_base__error__bad_argument) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_header); + goto exit; + } + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + self->private_impl.f_ssize_have = 0u; + self->private_impl.f_dsize_have = 0u; + wuffs_lzma__decoder__set_quirk(&self->private_data.f_lzma, 1348001792u, 1u); + while (true) { + v_dmark = ((uint64_t)(iop_a_dst - io0_a_dst)); + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_lzma__decoder__transform_io(&self->private_data.f_lzma, a_dst, a_src, a_workbuf); + v_status = t_2; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + self->private_impl.f_ssize_have += wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src))); + self->private_impl.f_dsize_have += wuffs_private_impl__io__count_since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst))); + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; + } + } + v_checksum_want = t_3; + } + if ( ! self->private_impl.f_ignore_checksum) { + v_checksum_have = wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32); + if (v_checksum_have != v_checksum_want) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_checksum); + goto exit; + } + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint64_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_4 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 56) { + t_4 = ((uint64_t)(*scratch)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)) << 56; + } + } + v_size_want = t_4; + } + if (self->private_impl.f_dsize_have != v_size_want) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_footer); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint64_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_5 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_5; + if (num_bits_5 == 56) { + t_5 = ((uint64_t)(*scratch)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)) << 56; + } + } + v_size_want = t_5; + } + if ((v_size_want < 26u) || (2251799813685248u < v_size_want)) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_footer); + goto exit; + } else if (self->private_impl.f_ssize_have != (v_size_want - 26u)) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_footer); + goto exit; + } + while (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + if (a_src && a_src->meta.closed) { + goto label__outer__break; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + } + v_c32 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + if (v_c32 != 1346984524u) { + break; + } + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_private_impl__ignore_status(wuffs_lzma__decoder__initialize(&self->private_data.f_lzma, + sizeof (wuffs_lzma__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + label__outer__break:; + + ok: + self->private_impl.p_do_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZIP) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) + +// ---------------- Status Codes Implementations + +const char wuffs_lzw__error__bad_code[] = "#lzw: bad code"; +const char wuffs_lzw__error__truncated_input[] = "#lzw: truncated input"; +const char wuffs_lzw__error__internal_error_inconsistent_i_o[] = "#lzw: internal error: inconsistent I/O"; + +// ---------------- Private Consts + +#define WUFFS_LZW__QUIRKS_BASE 1348378624u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzw__decoder__read_from( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzw__decoder__write_to( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_dst); + +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_lzw__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_lzw__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_lzw__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_lzw__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzw__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_lzw__decoder__initialize( + wuffs_lzw__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_lzw__decoder* +wuffs_lzw__decoder__alloc(void) { + wuffs_lzw__decoder* x = + (wuffs_lzw__decoder*)(calloc(1, sizeof(wuffs_lzw__decoder))); + if (!x) { + return NULL; + } + if (wuffs_lzw__decoder__initialize( + x, sizeof(wuffs_lzw__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_lzw__decoder(void) { + return sizeof(wuffs_lzw__decoder); +} + +// ---------------- Function Implementations + +// -------- func lzw.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_lzw__decoder__get_quirk( + const wuffs_lzw__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (a_key == 1348378624u) { + return ((uint64_t)(self->private_impl.f_pending_literal_width_plus_one)); + } + return 0u; +} + +// -------- func lzw.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzw__decoder__set_quirk( + wuffs_lzw__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (a_key == 1348378624u) { + if (a_value > 9u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_pending_literal_width_plus_one = ((uint32_t)(a_value)); + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func lzw.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzw__decoder__dst_history_retain_length( + const wuffs_lzw__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_base__utility__make_optional_u63(true, 0u); +} + +// -------- func lzw.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzw__decoder__workbuf_len( + const wuffs_lzw__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +// -------- func lzw.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzw__decoder__transform_io( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_i = 0; + + uint32_t coro_susp_point = self->private_impl.p_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_literal_width = 8u; + if (self->private_impl.f_pending_literal_width_plus_one > 0u) { + self->private_impl.f_literal_width = (self->private_impl.f_pending_literal_width_plus_one - 1u); + } + self->private_impl.f_clear_code = (((uint32_t)(1u)) << self->private_impl.f_literal_width); + self->private_impl.f_end_code = (self->private_impl.f_clear_code + 1u); + self->private_impl.f_save_code = self->private_impl.f_end_code; + self->private_impl.f_prev_code = self->private_impl.f_end_code; + self->private_impl.f_width = (self->private_impl.f_literal_width + 1u); + self->private_impl.f_bits = 0u; + self->private_impl.f_n_bits = 0u; + self->private_impl.f_output_ri = 0u; + self->private_impl.f_output_wi = 0u; + v_i = 0u; + while (v_i < self->private_impl.f_clear_code) { + self->private_data.f_lm1s[v_i] = 0u; + self->private_data.f_suffixes[v_i][0u] = ((uint8_t)(v_i)); + v_i += 1u; + } + while (true) { + wuffs_lzw__decoder__read_from(self, a_src); + if (self->private_impl.f_output_wi > 0u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_lzw__decoder__write_to(self, a_dst); + if (status.repr) { + goto suspend; + } + } + if (self->private_impl.f_read_from_return_value == 0u) { + break; + } else if (self->private_impl.f_read_from_return_value == 1u) { + continue; + } else if (self->private_impl.f_read_from_return_value == 2u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } else if (self->private_impl.f_read_from_return_value == 3u) { + status = wuffs_base__make_status(wuffs_lzw__error__truncated_input); + goto exit; + } else if (self->private_impl.f_read_from_return_value == 4u) { + status = wuffs_base__make_status(wuffs_lzw__error__bad_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); + goto exit; + } + } + + ok: + self->private_impl.p_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func lzw.decoder.read_from + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzw__decoder__read_from( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_src) { + uint32_t v_clear_code = 0; + uint32_t v_end_code = 0; + uint32_t v_save_code = 0; + uint32_t v_prev_code = 0; + uint32_t v_width = 0; + uint32_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_output_wi = 0; + uint32_t v_code = 0; + uint32_t v_c = 0; + uint32_t v_o = 0; + uint32_t v_steps = 0; + uint8_t v_first_byte = 0; + uint16_t v_lm1_b = 0; + uint16_t v_lm1_a = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + v_clear_code = self->private_impl.f_clear_code; + v_end_code = self->private_impl.f_end_code; + v_save_code = self->private_impl.f_save_code; + v_prev_code = self->private_impl.f_prev_code; + v_width = self->private_impl.f_width; + v_bits = self->private_impl.f_bits; + v_n_bits = self->private_impl.f_n_bits; + v_output_wi = self->private_impl.f_output_wi; + while (true) { + if (v_n_bits < v_width) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { + v_bits |= ((uint32_t)(wuffs_base__peek_u32le__no_bounds_check(iop_a_src) << v_n_bits)); + iop_a_src += ((31u - v_n_bits) >> 3u); + v_n_bits |= 24u; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + self->private_impl.f_read_from_return_value = 3u; + } else { + self->private_impl.f_read_from_return_value = 2u; + } + break; + } else { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + if (v_n_bits >= v_width) { + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + self->private_impl.f_read_from_return_value = 3u; + } else { + self->private_impl.f_read_from_return_value = 2u; + } + break; + } else { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + if (v_n_bits < v_width) { + self->private_impl.f_read_from_return_value = 5u; + break; + } + } + } + } + v_code = ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_width)); + v_bits >>= v_width; + v_n_bits -= v_width; + if (v_code < v_clear_code) { + self->private_data.f_output[v_output_wi] = ((uint8_t)(v_code)); + v_output_wi = ((v_output_wi + 1u) & 8191u); + if (v_save_code <= 4095u) { + v_lm1_a = ((uint16_t)(((uint16_t)(self->private_data.f_lm1s[v_prev_code] + 1u)) & 4095u)); + self->private_data.f_lm1s[v_save_code] = v_lm1_a; + if (((uint16_t)(v_lm1_a % 8u)) != 0u) { + self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; + memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); + self->private_data.f_suffixes[v_save_code][((uint16_t)(v_lm1_a % 8u))] = ((uint8_t)(v_code)); + } else { + self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); + self->private_data.f_suffixes[v_save_code][0u] = ((uint8_t)(v_code)); + } + v_save_code += 1u; + if (v_width < 12u) { + v_width += (1u & (v_save_code >> v_width)); + } + v_prev_code = v_code; + } + } else if (v_code <= v_end_code) { + if (v_code == v_end_code) { + self->private_impl.f_read_from_return_value = 0u; + break; + } + v_save_code = v_end_code; + v_prev_code = v_end_code; + v_width = (self->private_impl.f_literal_width + 1u); + } else if (v_code <= v_save_code) { + v_c = v_code; + if (v_code == v_save_code) { + v_c = v_prev_code; + } + v_o = ((v_output_wi + (((uint32_t)(self->private_data.f_lm1s[v_c])) & 4294967288u)) & 8191u); + v_output_wi = ((v_output_wi + 1u + ((uint32_t)(self->private_data.f_lm1s[v_c]))) & 8191u); + v_steps = (((uint32_t)(self->private_data.f_lm1s[v_c])) >> 3u); + while (true) { + memcpy((self->private_data.f_output)+(v_o), (self->private_data.f_suffixes[v_c]), 8u); + if (v_steps <= 0u) { + break; + } + v_steps -= 1u; + v_o = (((uint32_t)(v_o - 8u)) & 8191u); + v_c = ((uint32_t)(self->private_impl.f_prefixes[v_c])); + } + v_first_byte = self->private_data.f_suffixes[v_c][0u]; + if (v_code == v_save_code) { + self->private_data.f_output[v_output_wi] = v_first_byte; + v_output_wi = ((v_output_wi + 1u) & 8191u); + } + if (v_save_code <= 4095u) { + v_lm1_b = ((uint16_t)(((uint16_t)(self->private_data.f_lm1s[v_prev_code] + 1u)) & 4095u)); + self->private_data.f_lm1s[v_save_code] = v_lm1_b; + if (((uint16_t)(v_lm1_b % 8u)) != 0u) { + self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; + memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); + self->private_data.f_suffixes[v_save_code][((uint16_t)(v_lm1_b % 8u))] = v_first_byte; + } else { + self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); + self->private_data.f_suffixes[v_save_code][0u] = ((uint8_t)(v_first_byte)); + } + v_save_code += 1u; + if (v_width < 12u) { + v_width += (1u & (v_save_code >> v_width)); + } + v_prev_code = v_code; + } + } else { + self->private_impl.f_read_from_return_value = 4u; + break; + } + if (v_output_wi > 4095u) { + self->private_impl.f_read_from_return_value = 1u; + break; + } + } + if (self->private_impl.f_read_from_return_value != 2u) { + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + self->private_impl.f_read_from_return_value = 5u; + break; + } + } + } + self->private_impl.f_save_code = v_save_code; + self->private_impl.f_prev_code = v_prev_code; + self->private_impl.f_width = v_width; + self->private_impl.f_bits = v_bits; + self->private_impl.f_n_bits = v_n_bits; + self->private_impl.f_output_wi = v_output_wi; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return wuffs_base__make_empty_struct(); +} + +// -------- func lzw.decoder.write_to + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzw__decoder__write_to( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_dst) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__slice_u8 v_s = {0}; + uint64_t v_n = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + + uint32_t coro_susp_point = self->private_impl.p_write_to; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (self->private_impl.f_output_wi > 0u) { + if (self->private_impl.f_output_ri > self->private_impl.f_output_wi) { + status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); + goto exit; + } + v_s = wuffs_base__make_slice_u8_ij(self->private_data.f_output, + self->private_impl.f_output_ri, + self->private_impl.f_output_wi); + v_n = wuffs_private_impl__io_writer__copy_from_slice(&iop_a_dst, io2_a_dst,v_s); + if (v_n == ((uint64_t)(v_s.len))) { + self->private_impl.f_output_ri = 0u; + self->private_impl.f_output_wi = 0u; + status = wuffs_base__make_status(NULL); + goto ok; + } + self->private_impl.f_output_ri = (((uint32_t)(self->private_impl.f_output_ri + ((uint32_t)(v_n)))) & 8191u); + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_write_to = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_write_to = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + + return status; +} + +// -------- func lzw.decoder.flush + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__slice_u8 +wuffs_lzw__decoder__flush( + wuffs_lzw__decoder* self) { + if (!self) { + return wuffs_base__empty_slice_u8(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__empty_slice_u8(); + } + + uint32_t v_ri = 0; + uint32_t v_wi = 0; + + v_ri = self->private_impl.f_output_ri; + v_wi = self->private_impl.f_output_wi; + self->private_impl.f_output_ri = 0u; + self->private_impl.f_output_wi = 0u; + if (v_ri <= v_wi) { + return wuffs_base__make_slice_u8_ij(self->private_data.f_output, v_ri, v_wi); + } + return wuffs_base__make_slice_u8(self->private_data.f_output, 0); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) + +// ---------------- Status Codes Implementations + +const char wuffs_netpbm__error__bad_header[] = "#netpbm: bad header"; +const char wuffs_netpbm__error__truncated_input[] = "#netpbm: truncated input"; +const char wuffs_netpbm__error__unsupported_netpbm_file[] = "#netpbm: unsupported Netpbm file"; +const char wuffs_netpbm__note__internal_note_short_read[] = "@netpbm: internal note: short read"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_image_config( + wuffs_netpbm__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_frame_config( + wuffs_netpbm__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_frame( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__swizzle( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_netpbm__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_netpbm__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_netpbm__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_netpbm__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_netpbm__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_netpbm__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_netpbm__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_netpbm__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_netpbm__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_netpbm__decoder__initialize( + wuffs_netpbm__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_netpbm__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_netpbm__decoder* +wuffs_netpbm__decoder__alloc(void) { + wuffs_netpbm__decoder* x = + (wuffs_netpbm__decoder*)(calloc(1, sizeof(wuffs_netpbm__decoder))); + if (!x) { + return NULL; + } + if (wuffs_netpbm__decoder__initialize( + x, sizeof(wuffs_netpbm__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_netpbm__decoder(void) { + return sizeof(wuffs_netpbm__decoder); +} + +// ---------------- Function Implementations + +// -------- func netpbm.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_netpbm__decoder__get_quirk( + const wuffs_netpbm__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func netpbm.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__set_quirk( + wuffs_netpbm__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func netpbm.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__decode_image_config( + wuffs_netpbm__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func netpbm.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_image_config( + wuffs_netpbm__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_n = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 != 80u) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if ((v_c8 < 49u) || (55u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } else if (v_c8 == 53u) { + self->private_impl.f_pixfmt = 536870920u; + } else if (v_c8 == 54u) { + self->private_impl.f_pixfmt = 2684356744u; + } else { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (v_c8 != 10u) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if ((v_c8 == 32u) || (v_c8 == 9u)) { + continue; + } else if (v_c8 == 35u) { + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if (v_c8 == 10u) { + break; + } + } + continue; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + self->private_impl.f_width = ((uint32_t)(((uint8_t)(v_c8 - 48u)))); + break; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + if ((v_c8 == 32u) || (v_c8 == 9u)) { + break; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + v_n = ((10u * self->private_impl.f_width) + ((uint32_t)(((uint8_t)(v_c8 - 48u))))); + if (v_n > 16777215u) { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + self->private_impl.f_width = v_n; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if ((v_c8 == 32u) || (v_c8 == 9u)) { + continue; + } else if (v_c8 == 35u) { + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_7 = *iop_a_src++; + v_c8 = t_7; + } + if (v_c8 == 10u) { + break; + } + } + continue; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + self->private_impl.f_height = ((uint32_t)(((uint8_t)(v_c8 - 48u)))); + break; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + v_c8 = t_8; + } + if ((v_c8 == 32u) || (v_c8 == 9u) || (v_c8 == 13u)) { + continue; + } else if (v_c8 == 10u) { + break; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + v_n = ((10u * self->private_impl.f_height) + ((uint32_t)(((uint8_t)(v_c8 - 48u))))); + if (v_n > 16777215u) { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + self->private_impl.f_height = v_n; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_9 = *iop_a_src++; + v_c8 = t_9; + } + if ((v_c8 == 32u) || (v_c8 == 9u)) { + continue; + } else if (v_c8 == 35u) { + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_10 = *iop_a_src++; + v_c8 = t_10; + } + if (v_c8 == 10u) { + break; + } + } + continue; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + self->private_impl.f_max_value = ((uint32_t)(((uint8_t)(v_c8 - 48u)))); + break; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_11 = *iop_a_src++; + v_c8 = t_11; + } + if ((v_c8 == 32u) || (v_c8 == 9u) || (v_c8 == 13u)) { + continue; + } else if (v_c8 == 10u) { + break; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + v_n = ((10u * self->private_impl.f_max_value) + ((uint32_t)(((uint8_t)(v_c8 - 48u))))); + if (v_n > 16777215u) { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + self->private_impl.f_max_value = v_n; + } + if (self->private_impl.f_max_value != 255u) { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + false); + } + self->private_impl.f_call_sequence = 32u; + + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func netpbm.decoder.decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__decode_frame_config( + wuffs_netpbm__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func netpbm.decoder.do_decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_frame_config( + wuffs_netpbm__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_netpbm__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + self->private_impl.f_frame_config_io_position, + 0u, + false, + false, + 0u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func netpbm.decoder.decode_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__decode_frame( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func netpbm.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_frame( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_netpbm__decoder__do_decode_frame_config(self, NULL, a_src); + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y = 0u; + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + while (true) { + v_status = wuffs_netpbm__decoder__swizzle(self, a_dst, a_src); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (v_status.repr != wuffs_netpbm__note__internal_note_short_read) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func netpbm.decoder.swizzle + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__swizzle( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + uint32_t v_src_bytes_per_pixel = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_i = 0; + uint64_t v_j = 0; + uint64_t v_n = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (true) { + if (self->private_impl.f_dst_x == self->private_impl.f_width) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += 1u; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + break; + } + } + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i >= ((uint64_t)(v_dst.len))) { + v_src_bytes_per_pixel = 1u; + if (self->private_impl.f_pixfmt == 2684356744u) { + v_src_bytes_per_pixel = 3u; + } + v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); + v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); + v_j = v_n; + while (v_j >= 8u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { + iop_a_src += (v_src_bytes_per_pixel * 8u); + } + v_j -= 8u; + } + while (v_j > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { + iop_a_src += (v_src_bytes_per_pixel * 1u); + } + v_j -= 1u; + } + } else { + v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( + &self->private_impl.f_swizzler, + wuffs_base__slice_u8__subslice_i(v_dst, v_i), + wuffs_base__pixel_buffer__palette(a_dst), + &iop_a_src, + io2_a_src); + } + if (v_n == 0u) { + status = wuffs_base__make_status(wuffs_netpbm__note__internal_note_short_read); + goto ok; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + } + status = wuffs_base__make_status(NULL); + goto ok; + + ok: + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func netpbm.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_netpbm__decoder__frame_dirty_rect( + const wuffs_netpbm__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func netpbm.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_netpbm__decoder__num_animation_loops( + const wuffs_netpbm__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func netpbm.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_netpbm__decoder__num_decoded_frame_configs( + const wuffs_netpbm__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func netpbm.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_netpbm__decoder__num_decoded_frames( + const wuffs_netpbm__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func netpbm.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__restart_frame( + wuffs_netpbm__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if ((a_index != 0u) || (a_io_position != self->private_impl.f_frame_config_io_position)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); +} + +// -------- func netpbm.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_netpbm__decoder__set_report_metadata( + wuffs_netpbm__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func netpbm.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__tell_me_more( + wuffs_netpbm__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func netpbm.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_netpbm__decoder__workbuf_len( + const wuffs_netpbm__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) + +// ---------------- Status Codes Implementations + +const char wuffs_nie__error__bad_header[] = "#nie: bad header"; +const char wuffs_nie__error__truncated_input[] = "#nie: truncated input"; +const char wuffs_nie__error__unsupported_nie_file[] = "#nie: unsupported NIE file"; +const char wuffs_nie__note__internal_note_short_read[] = "@nie: internal note: short read"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_image_config( + wuffs_nie__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_frame_config( + wuffs_nie__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_frame( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__swizzle( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_nie__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_nie__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_nie__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_nie__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_nie__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_nie__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_nie__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_nie__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_nie__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_nie__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_nie__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_nie__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_nie__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_nie__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_nie__decoder__initialize( + wuffs_nie__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_nie__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_nie__decoder* +wuffs_nie__decoder__alloc(void) { + wuffs_nie__decoder* x = + (wuffs_nie__decoder*)(calloc(1, sizeof(wuffs_nie__decoder))); + if (!x) { + return NULL; + } + if (wuffs_nie__decoder__initialize( + x, sizeof(wuffs_nie__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_nie__decoder(void) { + return sizeof(wuffs_nie__decoder); +} + +// ---------------- Function Implementations + +// -------- func nie.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_nie__decoder__get_quirk( + const wuffs_nie__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func nie.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__set_quirk( + wuffs_nie__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func nie.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_image_config( + wuffs_nie__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_nie__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func nie.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_image_config( + wuffs_nie__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_a = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_a = t_0; + } + if (v_a != 1169146734u) { + status = wuffs_base__make_status(wuffs_nie__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_a = t_1; + } + if (v_a == 879649535u) { + self->private_impl.f_pixfmt = 2164295816u; + } else if (v_a == 946758399u) { + self->private_impl.f_pixfmt = 2164308923u; + } else if (v_a == 879780607u) { + status = wuffs_base__make_status(wuffs_nie__error__unsupported_nie_file); + goto exit; + } else if (v_a == 946889471u) { + status = wuffs_base__make_status(wuffs_nie__error__unsupported_nie_file); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_nie__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + v_a = t_2; + } + if (v_a > 2147483647u) { + status = wuffs_base__make_status(wuffs_nie__error__bad_header); + goto exit; + } else if (v_a > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_width = v_a; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; + } + } + v_a = t_3; + } + if (v_a > 2147483647u) { + status = wuffs_base__make_status(wuffs_nie__error__bad_header); + goto exit; + } else if (v_a > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_height = v_a; + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + 16u, + false); + } + self->private_impl.f_call_sequence = 32u; + + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func nie.decoder.decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_frame_config( + wuffs_nie__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_nie__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func nie.decoder.do_decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_frame_config( + wuffs_nie__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_nie__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (16u != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + 16u, + 0u, + false, + false, + 0u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func nie.decoder.decode_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_frame( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_nie__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func nie.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_frame( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_nie__decoder__do_decode_frame_config(self, NULL, a_src); + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y = 0u; + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + while (true) { + v_status = wuffs_nie__decoder__swizzle(self, a_dst, a_src); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (v_status.repr != wuffs_nie__note__internal_note_short_read) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func nie.decoder.swizzle + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__swizzle( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + uint32_t v_src_bytes_per_pixel = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_i = 0; + uint64_t v_j = 0; + uint64_t v_n = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (true) { + if (self->private_impl.f_dst_x == self->private_impl.f_width) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += 1u; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + break; + } + } + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i >= ((uint64_t)(v_dst.len))) { + v_src_bytes_per_pixel = 4u; + if (self->private_impl.f_pixfmt == 2164308923u) { + v_src_bytes_per_pixel = 8u; + } + v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); + v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); + v_j = v_n; + while (v_j >= 8u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { + iop_a_src += (v_src_bytes_per_pixel * 8u); + } + v_j -= 8u; + } + while (v_j > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { + iop_a_src += (v_src_bytes_per_pixel * 1u); + } + v_j -= 1u; + } + } else { + v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( + &self->private_impl.f_swizzler, + wuffs_base__slice_u8__subslice_i(v_dst, v_i), + wuffs_base__pixel_buffer__palette(a_dst), + &iop_a_src, + io2_a_src); + } + if (v_n == 0u) { + status = wuffs_base__make_status(wuffs_nie__note__internal_note_short_read); + goto ok; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + } + status = wuffs_base__make_status(NULL); + goto ok; + + ok: + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func nie.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_nie__decoder__frame_dirty_rect( + const wuffs_nie__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func nie.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_nie__decoder__num_animation_loops( + const wuffs_nie__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func nie.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_nie__decoder__num_decoded_frame_configs( + const wuffs_nie__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func nie.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_nie__decoder__num_decoded_frames( + const wuffs_nie__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func nie.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__restart_frame( + wuffs_nie__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if ((a_index != 0u) || (a_io_position != 16u)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); +} + +// -------- func nie.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_nie__decoder__set_report_metadata( + wuffs_nie__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func nie.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__tell_me_more( + wuffs_nie__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func nie.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_nie__decoder__workbuf_len( + const wuffs_nie__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) + +// ---------------- Status Codes Implementations + +const char wuffs_zlib__note__dictionary_required[] = "@zlib: dictionary required"; +const char wuffs_zlib__error__bad_checksum[] = "#zlib: bad checksum"; +const char wuffs_zlib__error__bad_compression_method[] = "#zlib: bad compression method"; +const char wuffs_zlib__error__bad_compression_window_size[] = "#zlib: bad compression window size"; +const char wuffs_zlib__error__bad_parity_check[] = "#zlib: bad parity check"; +const char wuffs_zlib__error__incorrect_dictionary[] = "#zlib: incorrect dictionary"; +const char wuffs_zlib__error__truncated_input[] = "#zlib: truncated input"; + +// ---------------- Private Consts + +#define WUFFS_ZLIB__QUIRKS_BASE 2113790976u + +#define WUFFS_ZLIB__QUIRKS_COUNT 1u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_zlib__decoder__do_transform_io( + wuffs_zlib__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_zlib__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_zlib__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_zlib__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_zlib__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_zlib__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_zlib__decoder__initialize( + wuffs_zlib__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + { + wuffs_base__status z = wuffs_adler32__hasher__initialize( + &self->private_data.f_checksum, sizeof(self->private_data.f_checksum), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_adler32__hasher__initialize( + &self->private_data.f_dict_id_hasher, sizeof(self->private_data.f_dict_id_hasher), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_deflate__decoder__initialize( + &self->private_data.f_flate, sizeof(self->private_data.f_flate), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_zlib__decoder* +wuffs_zlib__decoder__alloc(void) { + wuffs_zlib__decoder* x = + (wuffs_zlib__decoder*)(calloc(1, sizeof(wuffs_zlib__decoder))); + if (!x) { + return NULL; + } + if (wuffs_zlib__decoder__initialize( + x, sizeof(wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_zlib__decoder(void) { + return sizeof(wuffs_zlib__decoder); +} + +// ---------------- Function Implementations + +// -------- func zlib.decoder.dictionary_id + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_zlib__decoder__dictionary_id( + const wuffs_zlib__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return self->private_impl.f_dict_id_want; +} + +// -------- func zlib.decoder.add_dictionary + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_zlib__decoder__add_dictionary( + wuffs_zlib__decoder* self, + wuffs_base__slice_u8 a_dict) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } + + if (self->private_impl.f_header_complete) { + self->private_impl.f_bad_call_sequence = true; + } else { + self->private_impl.f_dict_id_have = wuffs_adler32__hasher__update_u32(&self->private_data.f_dict_id_hasher, a_dict); + wuffs_deflate__decoder__add_history(&self->private_data.f_flate, a_dict); + } + self->private_impl.f_got_dictionary = true; + return wuffs_base__make_empty_struct(); +} + +// -------- func zlib.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_zlib__decoder__get_quirk( + const wuffs_zlib__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + uint32_t v_key = 0; + + if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + return 1u; + } else if (a_key >= 2113790976u) { + v_key = (a_key - 2113790976u); + if (v_key < 1u) { + if (self->private_impl.f_quirks[v_key]) { + return 1u; + } + } + } + return 0u; +} + +// -------- func zlib.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_zlib__decoder__set_quirk( + wuffs_zlib__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_header_complete) { + self->private_impl.f_bad_call_sequence = true; + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } else if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + return wuffs_base__make_status(NULL); + } else if (a_key >= 2113790976u) { + a_key -= 2113790976u; + if (a_key < 1u) { + self->private_impl.f_quirks[a_key] = (a_value > 0u); + return wuffs_base__make_status(NULL); + } + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func zlib.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_zlib__decoder__dst_history_retain_length( + const wuffs_zlib__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_base__utility__make_optional_u63(true, 0u); +} + +// -------- func zlib.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_zlib__decoder__workbuf_len( + const wuffs_zlib__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(1u, 1u); +} + +// -------- func zlib.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_zlib__decoder__transform_io( + wuffs_zlib__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_zlib__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_zlib__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func zlib.decoder.do_transform_io + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_zlib__decoder__do_transform_io( + wuffs_zlib__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint16_t v_x = 0; + uint32_t v_checksum_have = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_checksum_want = 0; + uint64_t v_mark = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; + if (coro_susp_point) { + v_checksum_have = self->private_data.s_do_transform_io.v_checksum_have; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_bad_call_sequence) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if (self->private_impl.f_quirks[0u]) { + } else if ( ! self->private_impl.f_want_dictionary) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint16_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_0 = wuffs_base__peek_u16be__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_number_length = wuffs_json__decoder__decode_number(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - v_number_status = (v_number_length >> 8u); - v_vminor = 10486787u; - if ((v_number_length & 128u) != 0u) { - v_vminor = 10486785u; + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_number_length = (v_number_length & 127u); - if (v_number_status == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_number_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 8) { + t_0 = ((uint16_t)(*scratch >> 48)); break; } - while (v_number_length > 0u) { - v_number_length -= 1u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + v_x = t_0; + } + if (((uint16_t)(((uint16_t)(v_x >> 8u)) & 15u)) != 8u) { + status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_method); + goto exit; + } + if (((uint16_t)(v_x >> 12u)) > 7u) { + status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_window_size); + goto exit; + } + if (((uint16_t)(v_x % 31u)) != 0u) { + status = wuffs_base__make_status(wuffs_zlib__error__bad_parity_check); + goto exit; + } + self->private_impl.f_want_dictionary = (((uint16_t)(v_x & 32u)) != 0u); + if (self->private_impl.f_want_dictionary) { + self->private_impl.f_dict_id_have = 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - } - if (v_number_status == 1u) { - if (self->private_impl.f_quirks[14u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch >> 32)); break; } - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } else if (v_number_status == 2u) { - status = wuffs_base__make_status(wuffs_json__error__unsupported_number_length); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(17); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(18); - } - } - } - break; - } else if (v_class == 5u) { - v_vminor = 2113553u; - if (v_depth == 0u) { - } else if (0u != (v_expect_after_value & (((uint32_t)(1u)) << 6u))) { - v_vminor = 2113601u; - } else { - v_vminor = 2113569u; - } - if (v_depth >= 1024u) { - status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); - goto exit; - } - v_stack_byte = (v_depth / 32u); - v_stack_bit = (v_depth & 31u); - self->private_data.f_stack[v_stack_byte] |= (((uint32_t)(1u)) << v_stack_bit); - v_depth += 1u; - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4162u; - v_expect_after_value = 4164u; - goto label__outer__continue; - } else if (v_class == 6u) { - iop_a_src += 1u; - if (v_depth <= 1u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2101314u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__outer__break; - } - v_depth -= 1u; - v_stack_byte = ((v_depth - 1u) / 32u); - v_stack_bit = ((v_depth - 1u) & 31u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2105410u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4356u; - v_expect_after_value = 4356u; - } else { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2113602u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4164u; - v_expect_after_value = 4164u; - } - goto label__outer__continue; - } else if (v_class == 7u) { - v_vminor = 2105361u; - if (v_depth == 0u) { - } else if (0u != (v_expect_after_value & (((uint32_t)(1u)) << 6u))) { - v_vminor = 2105409u; - } else { - v_vminor = 2105377u; - } - if (v_depth >= 1024u) { - status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); - goto exit; - } - v_stack_byte = (v_depth / 32u); - v_stack_bit = (v_depth & 31u); - self->private_data.f_stack[v_stack_byte] &= (4294967295u ^ (((uint32_t)(1u)) << v_stack_bit)); - v_depth += 1u; - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 8114u; - v_expect_after_value = 4356u; - goto label__outer__continue; - } else if (v_class == 8u) { - iop_a_src += 1u; - if (v_depth <= 1u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2101282u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__outer__break; - } - v_depth -= 1u; - v_stack_byte = ((v_depth - 1u) / 32u); - v_stack_bit = ((v_depth - 1u) & 31u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2105378u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4356u; - v_expect_after_value = 4356u; - } else { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2113570u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4164u; - v_expect_after_value = 4164u; - } - goto label__outer__continue; - } else if (v_class == 9u) { - v_match = wuffs_base__io_reader__match7(iop_a_src, io2_a_src, a_src, 111546413966853u); - if (v_match == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(8388612u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(5u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (((uint64_t)(io2_a_src - iop_a_src)) < 5u) { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; - } - iop_a_src += 5u; - break; - } else if (v_match == 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(19); - goto label__outer__continue; - } - } else if (v_class == 10u) { - v_match = wuffs_base__io_reader__match7(iop_a_src, io2_a_src, a_src, 435762131972u); - if (v_match == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(8388616u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; - } - iop_a_src += 4u; - break; - } else if (v_match == 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(20); - goto label__outer__continue; - } - } else if (v_class == 11u) { - v_match = wuffs_base__io_reader__match7(iop_a_src, io2_a_src, a_src, 465676103172u); - if (v_match == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(8388610u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; - } - iop_a_src += 4u; - break; - } else if (v_match == 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(21); - goto label__outer__continue; - } - if (self->private_impl.f_quirks[14u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); - status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - break; - } - } else if (v_class == 12u) { - if (self->private_impl.f_quirks[11u] || self->private_impl.f_quirks[12u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); - status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - if (self->private_impl.f_comment_type > 0u) { - goto label__outer__continue; + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); } } + self->private_impl.f_dict_id_want = t_1; } - status = wuffs_base__make_status(wuffs_json__error__bad_input); + status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); + goto ok; + } else if (self->private_impl.f_got_dictionary) { + status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); goto exit; } - if (v_depth == 0u) { - break; + } else if (self->private_impl.f_dict_id_have != self->private_impl.f_dict_id_want) { + if (self->private_impl.f_got_dictionary) { + status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); + goto exit; } - v_expect = v_expect_after_value; + status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); + goto ok; } - label__outer__break:; - if (self->private_impl.f_quirks[17u] || self->private_impl.f_quirks[18u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + self->private_impl.f_header_complete = true; + while (true) { + v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_deflate__decoder__transform_io(&self->private_data.f_flate, a_dst, a_src, a_workbuf); + v_status = t_2; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if ( ! self->private_impl.f_ignore_checksum && ! self->private_impl.f_quirks[0u]) { + v_checksum_have = wuffs_adler32__hasher__update_u32(&self->private_data.f_checksum, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); - status = wuffs_json__decoder__decode_trailer(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + if (wuffs_base__status__is_ok(&v_status)) { + break; } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + if ( ! self->private_impl.f_quirks[0u]) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + v_checksum_want = t_3; } - if (status.repr) { - goto suspend; + if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != v_checksum_want)) { + status = wuffs_base__make_status(wuffs_zlib__error__bad_checksum); + goto exit; } } - self->private_impl.f_end_of_data = true; - ok: - self->private_impl.p_decode_tokens[0] = 0; - goto exit; - } + ok: + self->private_impl.p_do_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_transform_io.v_checksum_have = v_checksum_have; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) + +// ---------------- Status Codes Implementations + +const char wuffs_png__error__bad_animation_sequence_number[] = "#png: bad animation sequence number"; +const char wuffs_png__error__bad_checksum[] = "#png: bad checksum"; +const char wuffs_png__error__bad_chunk[] = "#png: bad chunk"; +const char wuffs_png__error__bad_filter[] = "#png: bad filter"; +const char wuffs_png__error__bad_header[] = "#png: bad header"; +const char wuffs_png__error__bad_text_chunk_not_latin_1[] = "#png: bad text chunk (not Latin-1)"; +const char wuffs_png__error__missing_palette[] = "#png: missing palette"; +const char wuffs_png__error__truncated_input[] = "#png: truncated input"; +const char wuffs_png__error__unsupported_cgbi_extension[] = "#png: unsupported CgBI extension"; +const char wuffs_png__error__unsupported_png_compression_method[] = "#png: unsupported PNG compression method"; +const char wuffs_png__error__unsupported_png_file[] = "#png: unsupported PNG file"; +const char wuffs_png__error__internal_error_inconsistent_i_o[] = "#png: internal error: inconsistent I/O"; +const char wuffs_png__error__internal_error_inconsistent_chunk_type[] = "#png: internal error: inconsistent chunk type"; +const char wuffs_png__error__internal_error_inconsistent_workbuf_length[] = "#png: internal error: inconsistent workbuf length"; +const char wuffs_png__error__internal_error_zlib_decoder_did_not_exhaust_its_input[] = "#png: internal error: zlib decoder did not exhaust its input"; + +// ---------------- Private Consts + +#define WUFFS_PNG__ANCILLARY_BIT 32u + +static const uint8_t +WUFFS_PNG__INTERLACING[8][6] WUFFS_BASE__POTENTIALLY_UNUSED = { + { + 0u, 0u, 0u, 0u, 0u, 0u, + }, { + 3u, 7u, 0u, 3u, 7u, 0u, + }, { + 3u, 3u, 4u, 3u, 7u, 0u, + }, { + 2u, 3u, 0u, 3u, 3u, 4u, + }, { + 2u, 1u, 2u, 2u, 3u, 0u, + }, { + 1u, 1u, 0u, 2u, 1u, 2u, + }, { + 1u, 0u, 1u, 1u, 1u, 0u, + }, { + 0u, 0u, 0u, 1u, 0u, 1u, + }, +}; + +static const uint8_t +WUFFS_PNG__LOW_BIT_DEPTH_MULTIPLIERS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 255u, 85u, 0u, 17u, 0u, 0u, 0u, +}; + +static const uint8_t +WUFFS_PNG__LOW_BIT_DEPTH_NUM_PACKS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 8u, 4u, 0u, 2u, 0u, 0u, 0u, +}; + +static const uint8_t +WUFFS_PNG__NUM_CHANNELS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1u, 0u, 3u, 1u, 2u, 0u, 4u, 0u, +}; + +static const uint16_t +WUFFS_PNG__LATIN_1[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 32u, 33u, 34u, 35u, 36u, 37u, 38u, 39u, + 40u, 41u, 42u, 43u, 44u, 45u, 46u, 47u, + 48u, 49u, 50u, 51u, 52u, 53u, 54u, 55u, + 56u, 57u, 58u, 59u, 60u, 61u, 62u, 63u, + 64u, 65u, 66u, 67u, 68u, 69u, 70u, 71u, + 72u, 73u, 74u, 75u, 76u, 77u, 78u, 79u, + 80u, 81u, 82u, 83u, 84u, 85u, 86u, 87u, + 88u, 89u, 90u, 91u, 92u, 93u, 94u, 95u, + 96u, 97u, 98u, 99u, 100u, 101u, 102u, 103u, + 104u, 105u, 106u, 107u, 108u, 109u, 110u, 111u, + 112u, 113u, 114u, 115u, 116u, 117u, 118u, 119u, + 120u, 121u, 122u, 123u, 124u, 125u, 126u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 41410u, 41666u, 41922u, 42178u, 42434u, 42690u, 42946u, + 43202u, 43458u, 43714u, 43970u, 44226u, 44482u, 44738u, 44994u, + 45250u, 45506u, 45762u, 46018u, 46274u, 46530u, 46786u, 47042u, + 47298u, 47554u, 47810u, 48066u, 48322u, 48578u, 48834u, 49090u, + 32963u, 33219u, 33475u, 33731u, 33987u, 34243u, 34499u, 34755u, + 35011u, 35267u, 35523u, 35779u, 36035u, 36291u, 36547u, 36803u, + 37059u, 37315u, 37571u, 37827u, 38083u, 38339u, 38595u, 38851u, + 39107u, 39363u, 39619u, 39875u, 40131u, 40387u, 40643u, 40899u, + 41155u, 41411u, 41667u, 41923u, 42179u, 42435u, 42691u, 42947u, + 43203u, 43459u, 43715u, 43971u, 44227u, 44483u, 44739u, 44995u, + 45251u, 45507u, 45763u, 46019u, 46275u, 46531u, 46787u, 47043u, + 47299u, 47555u, 47811u, 48067u, 48323u, 48579u, 48835u, 49091u, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_2( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); - goto suspend; - suspend: - self->private_impl.p_decode_tokens[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - self->private_data.s_decode_tokens[0].v_depth = v_depth; - self->private_data.s_decode_tokens[0].v_expect = v_expect; - self->private_data.s_decode_tokens[0].v_expect_after_value = v_expect_after_value; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -// -------- func json.decoder.decode_number +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_json__decoder__decode_number( - wuffs_json__decoder* self, - wuffs_base__io_buffer* a_src) { - uint8_t v_c = 0; - uint32_t v_n = 0; - uint32_t v_floating_point = 0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); - do { - v_n = 0u; - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c != 45u) { - } else { - v_n += 1u; - iop_a_src += 1u; - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - v_n |= 256u; - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - } - if (v_c == 48u) { - v_n += 1u; - iop_a_src += 1u; - } else { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (v_n > 99u) { - break; - } - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c != 46u) { - } else { - if (v_n >= 99u) { - v_n |= 512u; - break; - } - v_n += 1u; - iop_a_src += 1u; - v_floating_point = 128u; - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (v_n > 99u) { - break; - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - } - if ((v_c != 69u) && (v_c != 101u)) { - break; - } - if (v_n >= 99u) { - v_n |= 512u; - break; - } - v_n += 1u; - iop_a_src += 1u; - v_floating_point = 128u; - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - v_n |= 256u; - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if ((v_c != 43u) && (v_c != 45u)) { - } else { - if (v_n >= 99u) { - v_n |= 512u; - break; - } - v_n += 1u; - iop_a_src += 1u; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } while (0); - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - return (v_n | v_floating_point); -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -// -------- func json.decoder.decode_digits +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_json__decoder__decode_digits( - wuffs_json__decoder* self, +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_decode_image_config( + wuffs_png__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_ihdr( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__assign_filter_distance( + wuffs_png__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static uint64_t +wuffs_png__decoder__calculate_bytes_per_row( + const wuffs_png__decoder* self, + uint32_t a_width); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__choose_filter_implementations( + wuffs_png__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_other_chunk( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src, - uint32_t a_n) { - uint8_t v_c = 0; - uint32_t v_n = 0; + bool a_framy); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_actl( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_chrm( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_exif( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_fctl( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_gama( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_iccp( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_plte( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_srgb( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_trns( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_decode_frame_config( + wuffs_png__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__skip_frame( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_decode_frame( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_pass( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_tell_me_more( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle__choosy_default( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle_tricky( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_png__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_png__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_png__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_png__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_png__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_png__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_png__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_png__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_png__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_png__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_png__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_png__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_png__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_png__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_png__decoder__initialize( + wuffs_png__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); } - v_n = a_n; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - break; + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (0u == WUFFS_JSON__LUT_DECIMAL_DIGITS[v_c]) { - break; +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - if (v_n >= 99u) { - v_n |= 512u; - break; + } + + self->private_impl.choosy_filter_1 = &wuffs_png__decoder__filter_1__choosy_default; + self->private_impl.choosy_filter_3 = &wuffs_png__decoder__filter_3__choosy_default; + self->private_impl.choosy_filter_4 = &wuffs_png__decoder__filter_4__choosy_default; + self->private_impl.choosy_filter_and_swizzle = &wuffs_png__decoder__filter_and_swizzle__choosy_default; + + { + wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( + &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); + if (z.repr) { + return z; } - v_n += 1u; - iop_a_src += 1u; } - if (v_n == a_n) { - v_n |= 256u; + { + wuffs_base__status z = wuffs_zlib__decoder__initialize( + &self->private_data.f_zlib, sizeof(self->private_data.f_zlib), WUFFS_VERSION, options); + if (z.repr) { + return z; + } } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_png__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_png__decoder* +wuffs_png__decoder__alloc(void) { + wuffs_png__decoder* x = + (wuffs_png__decoder*)(calloc(1, sizeof(wuffs_png__decoder))); + if (!x) { + return NULL; } - return v_n; + if (wuffs_png__decoder__initialize( + x, sizeof(wuffs_png__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_png__decoder(void) { + return sizeof(wuffs_png__decoder); } -// -------- func json.decoder.decode_leading +// ---------------- Function Implementations -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_leading( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func png.decoder.filter_1_distance_4_arm_neon - uint8_t v_c = 0; - uint32_t v_u = 0; +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + wuffs_base__slice_u8 v_curr = {0}; + uint8x8_t v_fa = {0}; + uint8x8_t v_fx = {0}; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, v_fa); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, v_fa); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; } + v_curr.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, v_fa); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + } + v_curr.len = 0; } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon - uint32_t coro_susp_point = self->private_impl.p_decode_leading[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func png.decoder.filter_3_distance_4_arm_neon - self->private_impl.f_allow_leading_ars = self->private_impl.f_quirks[15u]; - self->private_impl.f_allow_leading_ubom = self->private_impl.f_quirks[16u]; - while (self->private_impl.f_allow_leading_ars || self->private_impl.f_allow_leading_ubom) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8x8_t v_fa = {0}; + uint8x8_t v_fb = {0}; + uint8x8_t v_fx = {0}; + + if (((uint64_t)(a_prev.len)) == 0u) { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - break; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - continue; + v_curr.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if ((v_c == 30u) && self->private_impl.f_allow_leading_ars) { - self->private_impl.f_allow_leading_ars = false; - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - continue; - } else if ((v_c == 239u) && self->private_impl.f_allow_leading_ubom) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { - if (a_src && a_src->meta.closed) { - break; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - continue; - } - v_u = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - if (v_u == 12565487u) { - self->private_impl.f_allow_leading_ubom = false; - iop_a_src += 3u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - continue; - } + v_curr.len = 0; + } + } else { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; } - break; + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 0; + v_prev.len = 0; } - - ok: - self->private_impl.p_decode_leading[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_leading[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - - return status; + return wuffs_base__make_empty_struct(); } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon -// -------- func json.decoder.decode_comment +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func png.decoder.filter_4_distance_3_arm_neon +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_comment( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - uint16_t v_c2 = 0; - uint32_t v_length = 0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8x8_t v_fa = {0}; + uint8x8_t v_fb = {0}; + uint8x8_t v_fc = {0}; + uint8x8_t v_fx = {0}; + uint16x8_t v_fafb = {0}; + uint16x8_t v_fcfc = {0}; + uint16x8_t v_pa = {0}; + uint16x8_t v_pb = {0}; + uint16x8_t v_pc = {0}; + uint16x8_t v_cmpab = {0}; + uint16x8_t v_cmpac = {0}; + uint8x8_t v_picka = {0}; + uint8x8_t v_pickb = {0}; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 7, 6)); + while (v_curr.ptr < i_end0_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 3; + v_prev.ptr += 3; + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 3; + v_prev.ptr += 3; } + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 4, 3)); + while (v_curr.ptr < i_end1_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end2_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end2_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u24le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u24le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 0; + v_prev.len = 0; } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon - uint32_t coro_susp_point = self->private_impl.p_decode_comment[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func png.decoder.filter_4_distance_4_arm_neon - self->private_impl.f_comment_type = 0u; - while ((((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) || (((uint64_t)(io2_a_src - iop_a_src)) <= 1u)) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; - } - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(NULL); - goto ok; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } - v_c2 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - if ((v_c2 == 10799u) && self->private_impl.f_quirks[11u]) { - iop_a_src += 2u; - v_length = 2u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 1u) { - if (v_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - } - v_length = 0u; - continue; - } - v_c2 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - if (v_c2 == 12074u) { - iop_a_src += 2u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)((v_length + 2u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - self->private_impl.f_comment_type = 1u; - status = wuffs_base__make_status(NULL); - goto ok; - } - iop_a_src += 1u; - if (v_length >= 65533u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - } - v_length = 0u; - continue; - } - v_length += 1u; - } - } else if ((v_c2 == 12079u) && self->private_impl.f_quirks[12u]) { - iop_a_src += 2u; - v_length = 2u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - self->private_impl.f_comment_type = 2u; - status = wuffs_base__make_status(NULL); - goto ok; - } else if (v_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); - } - v_length = 0u; - continue; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c == 10u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - self->private_impl.f_comment_type = 2u; - status = wuffs_base__make_status(NULL); - goto ok; - } - iop_a_src += 1u; - if (v_length >= 65533u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - } - v_length = 0u; - continue; - } - v_length += 1u; - } +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8x8_t v_fa = {0}; + uint8x8_t v_fb = {0}; + uint8x8_t v_fc = {0}; + uint8x8_t v_fx = {0}; + uint16x8_t v_fafb = {0}; + uint16x8_t v_fcfc = {0}; + uint16x8_t v_pa = {0}; + uint16x8_t v_pb = {0}; + uint16x8_t v_pc = {0}; + uint16x8_t v_cmpab = {0}; + uint16x8_t v_cmpac = {0}; + uint8x8_t v_picka = {0}; + uint8x8_t v_pickb = {0}; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; } - - ok: - self->private_impl.p_decode_comment[0] = 0; - goto exit; + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 0; + v_prev.len = 0; } + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon - goto suspend; - suspend: - self->private_impl.p_decode_comment[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; +// -------- func png.decoder.filter_1 - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + return (*self->private_impl.choosy_filter_1)(self, a_curr); +} - return status; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + uint64_t v_filter_distance = 0; + uint8_t v_fa = 0; + uint64_t v_i_start = 0; + uint64_t v_i = 0; + + v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); + v_i_start = 0u; + while (v_i_start < v_filter_distance) { + v_fa = 0u; + v_i = v_i_start; + while (v_i < ((uint64_t)(a_curr.len))) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + v_fa)); + v_fa = a_curr.ptr[v_i]; + v_i += v_filter_distance; + } + v_i_start += 1u; + } + return wuffs_base__make_empty_struct(); } -// -------- func json.decoder.decode_inf_nan +// -------- func png.decoder.filter_1_distance_3_fallback WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_inf_nan( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_c4 = 0; - uint32_t v_neg = 0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + wuffs_base__slice_u8 v_curr = {0}; + uint8_t v_fa0 = 0; + uint8_t v_fa1 = 0; + uint8_t v_fa2 = 0; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 3; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; } + v_curr.len = 3; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end1_curr) { + v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + } + v_curr.len = 0; } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + return wuffs_base__make_empty_struct(); +} - uint32_t coro_susp_point = self->private_impl.p_decode_inf_nan[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +// -------- func png.decoder.filter_1_distance_4_fallback - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 2u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - continue; - } - v_c4 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - if ((v_c4 | 2105376u) == 6712937u) { - if (((uint64_t)(io2_a_src - iop_a_src)) > 7u) { - if ((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) | 2314885530818453536u) == 8751735898823356009u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(10485792u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(8u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 8u; - status = wuffs_base__make_status(NULL); - goto ok; - } - } else if ( ! (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - continue; - } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(10485792u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 3u; - status = wuffs_base__make_status(NULL); - goto ok; - } else if ((v_c4 | 2105376u) == 7233902u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(10485888u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 3u; - status = wuffs_base__make_status(NULL); - goto ok; - } else if ((v_c4 & 255u) == 43u) { - v_neg = 0u; - } else if ((v_c4 & 255u) == 45u) { - v_neg = 1u; - } else { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 3u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - continue; - } - v_c4 = (wuffs_base__peek_u32le__no_bounds_check(iop_a_src) >> 8u); - if ((v_c4 | 2105376u) == 6712937u) { - if (((uint64_t)(io2_a_src - iop_a_src)) > 8u) { - if ((wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 1u) | 2314885530818453536u) == 8751735898823356009u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((10485760u | (((uint32_t)(32u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(9u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 9u; - status = wuffs_base__make_status(NULL); - goto ok; - } - } else if ( ! (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - continue; - } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((10485760u | (((uint32_t)(32u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 4u; - status = wuffs_base__make_status(NULL); - goto ok; - } else if ((v_c4 | 2105376u) == 7233902u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((10485760u | (((uint32_t)(128u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 4u; - status = wuffs_base__make_status(NULL); - goto ok; - } - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + wuffs_base__slice_u8 v_curr = {0}; + uint8_t v_fa0 = 0; + uint8_t v_fa1 = 0; + uint8_t v_fa2 = 0; + uint8_t v_fa3 = 0; - ok: - self->private_impl.p_decode_inf_nan[0] = 0; - goto exit; + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_fa3 = ((uint8_t)(v_fa3 + v_curr.ptr[3u])); + v_curr.ptr[3u] = v_fa3; + v_curr.ptr += 4; + } + v_curr.len = 0; } + return wuffs_base__make_empty_struct(); +} - goto suspend; - suspend: - self->private_impl.p_decode_inf_nan[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; +// -------- func png.decoder.filter_2 - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_2( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + uint64_t v_n = 0; + uint64_t v_i = 0; - return status; + v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); + v_i = 0u; + while (v_i < v_n) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + a_prev.ptr[v_i])); + v_i += 1u; + } + return wuffs_base__make_empty_struct(); } -// -------- func json.decoder.decode_trailer +// -------- func png.decoder.filter_3 WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_trailer( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + return (*self->private_impl.choosy_filter_3)(self, a_curr, a_prev); +} - uint8_t v_c = 0; - uint32_t v_whitespace_length = 0; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + uint64_t v_filter_distance = 0; + uint64_t v_n = 0; + uint64_t v_i = 0; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; + v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); + if (((uint64_t)(a_prev.len)) == 0u) { + v_i = v_filter_distance; + while (v_i < ((uint64_t)(a_curr.len))) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(a_curr.ptr[(v_i - v_filter_distance)] / 2u)))); + v_i += 1u; + } + } else { + v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); + v_i = 0u; + while ((v_i < v_n) && (v_i < v_filter_distance)) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(a_prev.ptr[v_i] / 2u)))); + v_i += 1u; + } + v_i = v_filter_distance; + while (v_i < v_n) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(((((uint32_t)(a_curr.ptr[(v_i - v_filter_distance)])) + ((uint32_t)(a_prev.ptr[v_i]))) / 2u))))); + v_i += 1u; } } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + return wuffs_base__make_empty_struct(); +} - uint32_t coro_susp_point = self->private_impl.p_decode_trailer[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +// -------- func png.decoder.filter_3_distance_3_fallback - if (self->private_impl.f_quirks[18u]) { - self->private_impl.f_trailer_stop = 10u; - } else { - self->private_impl.f_trailer_stop = 0u; - } - label__outer__continue:; - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8_t v_fa0 = 0; + uint8_t v_fa1 = 0; + uint8_t v_fa2 = 0; + + if (((uint64_t)(a_prev.len)) == 0u) { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 3; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; } - v_whitespace_length = 0u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (v_whitespace_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } - if (a_src && a_src->meta.closed) { - goto label__outer__break; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - goto label__outer__continue; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (WUFFS_JSON__LUT_CLASSES[v_c] != 0u) { - if (v_whitespace_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } - if (self->private_impl.f_trailer_stop > 0u) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - if (self->private_impl.f_comment_type > 0u) { - goto label__outer__continue; - } - status = wuffs_base__make_status(NULL); - goto ok; - } - iop_a_src += 1u; - if ((v_whitespace_length >= 65534u) || (v_c == self->private_impl.f_trailer_stop)) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)((v_whitespace_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (v_c == self->private_impl.f_trailer_stop) { - status = wuffs_base__make_status(NULL); - goto ok; - } - goto label__outer__continue; - } - v_whitespace_length += 1u; + v_curr.len = 3; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end1_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; } + v_curr.len = 0; + } + } else { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_prev.ptr += 3; + v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end1_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 0; + v_prev.len = 0; } - label__outer__break:; - - ok: - self->private_impl.p_decode_trailer[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_trailer[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - - return status; + return wuffs_base__make_empty_struct(); } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) - -// ---------------- Status Codes Implementations - -const char wuffs_lzw__error__bad_code[] = "#lzw: bad code"; -const char wuffs_lzw__error__truncated_input[] = "#lzw: truncated input"; -const char wuffs_lzw__error__internal_error_inconsistent_i_o[] = "#lzw: internal error: inconsistent I/O"; - -// ---------------- Private Consts - -#define WUFFS_LZW__QUIRKS_BASE 1348378624 - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes +// -------- func png.decoder.filter_3_distance_4_fallback WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_lzw__decoder__read_from( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_lzw__decoder__write_to( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_dst); - -// ---------------- VTables - -const wuffs_base__io_transformer__func_ptrs -wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer = { - (uint64_t(*)(const void*, - uint32_t))(&wuffs_lzw__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_lzw__decoder__history_retain_length), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_lzw__decoder__set_quirk), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_lzw__decoder__transform_io), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzw__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_lzw__decoder__initialize( - wuffs_lzw__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } +wuffs_png__decoder__filter_3_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8_t v_fa0 = 0; + uint8_t v_fa1 = 0; + uint8_t v_fa2 = 0; + uint8_t v_fa3 = 0; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + if (((uint64_t)(a_prev.len)) == 0u) { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_fa3 = ((uint8_t)(((uint8_t)(v_fa3 / 2u)) + v_curr.ptr[3u])); + v_curr.ptr[3u] = v_fa3; + v_curr.ptr += 4; + } + v_curr.len = 0; } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_fa3 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa3)) + ((uint32_t)(v_prev.ptr[3u]))) / 2u))) + v_curr.ptr[3u])); + v_curr.ptr[3u] = v_fa3; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 0; + v_prev.len = 0; } } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = - wuffs_base__io_transformer__vtable_name; - self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer); - return wuffs_base__make_status(NULL); + return wuffs_base__make_empty_struct(); } -wuffs_lzw__decoder* -wuffs_lzw__decoder__alloc(void) { - wuffs_lzw__decoder* x = - (wuffs_lzw__decoder*)(calloc(sizeof(wuffs_lzw__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_lzw__decoder__initialize( - x, sizeof(wuffs_lzw__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} +// -------- func png.decoder.filter_4 -size_t -sizeof__wuffs_lzw__decoder(void) { - return sizeof(wuffs_lzw__decoder); +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + return (*self->private_impl.choosy_filter_4)(self, a_curr, a_prev); } -// ---------------- Function Implementations - -// -------- func lzw.decoder.get_quirk - WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_lzw__decoder__get_quirk( - const wuffs_lzw__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + uint64_t v_filter_distance = 0; + uint64_t v_n = 0; + uint64_t v_i = 0; + uint32_t v_fa = 0; + uint32_t v_fb = 0; + uint32_t v_fc = 0; + uint32_t v_pp = 0; + uint32_t v_pa = 0; + uint32_t v_pb = 0; + uint32_t v_pc = 0; - if (a_key == 1348378624u) { - return ((uint64_t)(self->private_impl.f_pending_literal_width_plus_one)); + v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); + v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); + v_i = 0u; + while ((v_i < v_n) && (v_i < v_filter_distance)) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + a_prev.ptr[v_i])); + v_i += 1u; } - return 0u; + v_i = v_filter_distance; + while (v_i < v_n) { + v_fa = ((uint32_t)(a_curr.ptr[(v_i - v_filter_distance)])); + v_fb = ((uint32_t)(a_prev.ptr[v_i])); + v_fc = ((uint32_t)(a_prev.ptr[(v_i - v_filter_distance)])); + v_pp = ((uint32_t)(((uint32_t)(v_fa + v_fb)) - v_fc)); + v_pa = ((uint32_t)(v_pp - v_fa)); + if (v_pa >= 2147483648u) { + v_pa = ((uint32_t)(0u - v_pa)); + } + v_pb = ((uint32_t)(v_pp - v_fb)); + if (v_pb >= 2147483648u) { + v_pb = ((uint32_t)(0u - v_pb)); + } + v_pc = ((uint32_t)(v_pp - v_fc)); + if (v_pc >= 2147483648u) { + v_pc = ((uint32_t)(0u - v_pc)); + } + if ((v_pa <= v_pb) && (v_pa <= v_pc)) { + } else if (v_pb <= v_pc) { + v_fa = v_fb; + } else { + v_fa = v_fc; + } + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(v_fa)))); + v_i += 1u; + } + return wuffs_base__make_empty_struct(); } -// -------- func lzw.decoder.set_quirk +// -------- func png.decoder.filter_4_distance_3_fallback WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_lzw__decoder__set_quirk( - wuffs_lzw__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint32_t v_fa0 = 0; + uint32_t v_fa1 = 0; + uint32_t v_fa2 = 0; + uint32_t v_fb0 = 0; + uint32_t v_fb1 = 0; + uint32_t v_fb2 = 0; + uint32_t v_fc0 = 0; + uint32_t v_fc1 = 0; + uint32_t v_fc2 = 0; + uint32_t v_pp0 = 0; + uint32_t v_pp1 = 0; + uint32_t v_pp2 = 0; + uint32_t v_pa0 = 0; + uint32_t v_pa1 = 0; + uint32_t v_pa2 = 0; + uint32_t v_pb0 = 0; + uint32_t v_pb1 = 0; + uint32_t v_pb2 = 0; + uint32_t v_pc0 = 0; + uint32_t v_pc1 = 0; + uint32_t v_pc2 = 0; - if (a_key == 1348378624u) { - if (a_value > 9u) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end0_curr) { + v_fb0 = ((uint32_t)(v_prev.ptr[0u])); + v_pp0 = ((uint32_t)(((uint32_t)(v_fa0 + v_fb0)) - v_fc0)); + v_pa0 = ((uint32_t)(v_pp0 - v_fa0)); + if (v_pa0 >= 2147483648u) { + v_pa0 = ((uint32_t)(0u - v_pa0)); + } + v_pb0 = ((uint32_t)(v_pp0 - v_fb0)); + if (v_pb0 >= 2147483648u) { + v_pb0 = ((uint32_t)(0u - v_pb0)); + } + v_pc0 = ((uint32_t)(v_pp0 - v_fc0)); + if (v_pc0 >= 2147483648u) { + v_pc0 = ((uint32_t)(0u - v_pc0)); + } + if ((v_pa0 <= v_pb0) && (v_pa0 <= v_pc0)) { + } else if (v_pb0 <= v_pc0) { + v_fa0 = v_fb0; + } else { + v_fa0 = v_fc0; + } + v_curr.ptr[0u] = ((uint8_t)(v_curr.ptr[0u] + ((uint8_t)(v_fa0)))); + v_fa0 = ((uint32_t)(v_curr.ptr[0u])); + v_fc0 = v_fb0; + v_fb1 = ((uint32_t)(v_prev.ptr[1u])); + v_pp1 = ((uint32_t)(((uint32_t)(v_fa1 + v_fb1)) - v_fc1)); + v_pa1 = ((uint32_t)(v_pp1 - v_fa1)); + if (v_pa1 >= 2147483648u) { + v_pa1 = ((uint32_t)(0u - v_pa1)); + } + v_pb1 = ((uint32_t)(v_pp1 - v_fb1)); + if (v_pb1 >= 2147483648u) { + v_pb1 = ((uint32_t)(0u - v_pb1)); + } + v_pc1 = ((uint32_t)(v_pp1 - v_fc1)); + if (v_pc1 >= 2147483648u) { + v_pc1 = ((uint32_t)(0u - v_pc1)); + } + if ((v_pa1 <= v_pb1) && (v_pa1 <= v_pc1)) { + } else if (v_pb1 <= v_pc1) { + v_fa1 = v_fb1; + } else { + v_fa1 = v_fc1; + } + v_curr.ptr[1u] = ((uint8_t)(v_curr.ptr[1u] + ((uint8_t)(v_fa1)))); + v_fa1 = ((uint32_t)(v_curr.ptr[1u])); + v_fc1 = v_fb1; + v_fb2 = ((uint32_t)(v_prev.ptr[2u])); + v_pp2 = ((uint32_t)(((uint32_t)(v_fa2 + v_fb2)) - v_fc2)); + v_pa2 = ((uint32_t)(v_pp2 - v_fa2)); + if (v_pa2 >= 2147483648u) { + v_pa2 = ((uint32_t)(0u - v_pa2)); + } + v_pb2 = ((uint32_t)(v_pp2 - v_fb2)); + if (v_pb2 >= 2147483648u) { + v_pb2 = ((uint32_t)(0u - v_pb2)); + } + v_pc2 = ((uint32_t)(v_pp2 - v_fc2)); + if (v_pc2 >= 2147483648u) { + v_pc2 = ((uint32_t)(0u - v_pc2)); + } + if ((v_pa2 <= v_pb2) && (v_pa2 <= v_pc2)) { + } else if (v_pb2 <= v_pc2) { + v_fa2 = v_fb2; + } else { + v_fa2 = v_fc2; + } + v_curr.ptr[2u] = ((uint8_t)(v_curr.ptr[2u] + ((uint8_t)(v_fa2)))); + v_fa2 = ((uint32_t)(v_curr.ptr[2u])); + v_fc2 = v_fb2; + v_curr.ptr += 3; + v_prev.ptr += 3; } - self->private_impl.f_pending_literal_width_plus_one = ((uint32_t)(a_value)); - return wuffs_base__make_status(NULL); + v_curr.len = 0; + v_prev.len = 0; } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + return wuffs_base__make_empty_struct(); } -// -------- func lzw.decoder.history_retain_length +// -------- func png.decoder.filter_4_distance_4_fallback WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_lzw__decoder__history_retain_length( - const wuffs_lzw__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func lzw.decoder.workbuf_len +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint32_t v_fa0 = 0; + uint32_t v_fa1 = 0; + uint32_t v_fa2 = 0; + uint32_t v_fa3 = 0; + uint32_t v_fb0 = 0; + uint32_t v_fb1 = 0; + uint32_t v_fb2 = 0; + uint32_t v_fb3 = 0; + uint32_t v_fc0 = 0; + uint32_t v_fc1 = 0; + uint32_t v_fc2 = 0; + uint32_t v_fc3 = 0; + uint32_t v_pp0 = 0; + uint32_t v_pp1 = 0; + uint32_t v_pp2 = 0; + uint32_t v_pp3 = 0; + uint32_t v_pa0 = 0; + uint32_t v_pa1 = 0; + uint32_t v_pa2 = 0; + uint32_t v_pa3 = 0; + uint32_t v_pb0 = 0; + uint32_t v_pb1 = 0; + uint32_t v_pb2 = 0; + uint32_t v_pb3 = 0; + uint32_t v_pc0 = 0; + uint32_t v_pc1 = 0; + uint32_t v_pc2 = 0; + uint32_t v_pc3 = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_lzw__decoder__workbuf_len( - const wuffs_lzw__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end0_curr) { + v_fb0 = ((uint32_t)(v_prev.ptr[0u])); + v_pp0 = ((uint32_t)(((uint32_t)(v_fa0 + v_fb0)) - v_fc0)); + v_pa0 = ((uint32_t)(v_pp0 - v_fa0)); + if (v_pa0 >= 2147483648u) { + v_pa0 = ((uint32_t)(0u - v_pa0)); + } + v_pb0 = ((uint32_t)(v_pp0 - v_fb0)); + if (v_pb0 >= 2147483648u) { + v_pb0 = ((uint32_t)(0u - v_pb0)); + } + v_pc0 = ((uint32_t)(v_pp0 - v_fc0)); + if (v_pc0 >= 2147483648u) { + v_pc0 = ((uint32_t)(0u - v_pc0)); + } + if ((v_pa0 <= v_pb0) && (v_pa0 <= v_pc0)) { + } else if (v_pb0 <= v_pc0) { + v_fa0 = v_fb0; + } else { + v_fa0 = v_fc0; + } + v_curr.ptr[0u] = ((uint8_t)(v_curr.ptr[0u] + ((uint8_t)(v_fa0)))); + v_fa0 = ((uint32_t)(v_curr.ptr[0u])); + v_fc0 = v_fb0; + v_fb1 = ((uint32_t)(v_prev.ptr[1u])); + v_pp1 = ((uint32_t)(((uint32_t)(v_fa1 + v_fb1)) - v_fc1)); + v_pa1 = ((uint32_t)(v_pp1 - v_fa1)); + if (v_pa1 >= 2147483648u) { + v_pa1 = ((uint32_t)(0u - v_pa1)); + } + v_pb1 = ((uint32_t)(v_pp1 - v_fb1)); + if (v_pb1 >= 2147483648u) { + v_pb1 = ((uint32_t)(0u - v_pb1)); + } + v_pc1 = ((uint32_t)(v_pp1 - v_fc1)); + if (v_pc1 >= 2147483648u) { + v_pc1 = ((uint32_t)(0u - v_pc1)); + } + if ((v_pa1 <= v_pb1) && (v_pa1 <= v_pc1)) { + } else if (v_pb1 <= v_pc1) { + v_fa1 = v_fb1; + } else { + v_fa1 = v_fc1; + } + v_curr.ptr[1u] = ((uint8_t)(v_curr.ptr[1u] + ((uint8_t)(v_fa1)))); + v_fa1 = ((uint32_t)(v_curr.ptr[1u])); + v_fc1 = v_fb1; + v_fb2 = ((uint32_t)(v_prev.ptr[2u])); + v_pp2 = ((uint32_t)(((uint32_t)(v_fa2 + v_fb2)) - v_fc2)); + v_pa2 = ((uint32_t)(v_pp2 - v_fa2)); + if (v_pa2 >= 2147483648u) { + v_pa2 = ((uint32_t)(0u - v_pa2)); + } + v_pb2 = ((uint32_t)(v_pp2 - v_fb2)); + if (v_pb2 >= 2147483648u) { + v_pb2 = ((uint32_t)(0u - v_pb2)); + } + v_pc2 = ((uint32_t)(v_pp2 - v_fc2)); + if (v_pc2 >= 2147483648u) { + v_pc2 = ((uint32_t)(0u - v_pc2)); + } + if ((v_pa2 <= v_pb2) && (v_pa2 <= v_pc2)) { + } else if (v_pb2 <= v_pc2) { + v_fa2 = v_fb2; + } else { + v_fa2 = v_fc2; + } + v_curr.ptr[2u] = ((uint8_t)(v_curr.ptr[2u] + ((uint8_t)(v_fa2)))); + v_fa2 = ((uint32_t)(v_curr.ptr[2u])); + v_fc2 = v_fb2; + v_fb3 = ((uint32_t)(v_prev.ptr[3u])); + v_pp3 = ((uint32_t)(((uint32_t)(v_fa3 + v_fb3)) - v_fc3)); + v_pa3 = ((uint32_t)(v_pp3 - v_fa3)); + if (v_pa3 >= 2147483648u) { + v_pa3 = ((uint32_t)(0u - v_pa3)); + } + v_pb3 = ((uint32_t)(v_pp3 - v_fb3)); + if (v_pb3 >= 2147483648u) { + v_pb3 = ((uint32_t)(0u - v_pb3)); + } + v_pc3 = ((uint32_t)(v_pp3 - v_fc3)); + if (v_pc3 >= 2147483648u) { + v_pc3 = ((uint32_t)(0u - v_pc3)); + } + if ((v_pa3 <= v_pb3) && (v_pa3 <= v_pc3)) { + } else if (v_pb3 <= v_pc3) { + v_fa3 = v_fb3; + } else { + v_fa3 = v_fc3; + } + v_curr.ptr[3u] = ((uint8_t)(v_curr.ptr[3u] + ((uint8_t)(v_fa3)))); + v_fa3 = ((uint32_t)(v_curr.ptr[3u])); + v_fc3 = v_fb3; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 0; + v_prev.len = 0; } - - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + return wuffs_base__make_empty_struct(); } -// -------- func lzw.decoder.transform_io +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func png.decoder.filter_1_distance_4_x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_lzw__decoder__transform_io( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_i = 0; - - uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + wuffs_base__slice_u8 v_curr = {0}; + __m128i v_x128 = {0}; + __m128i v_a128 = {0}; - self->private_impl.f_literal_width = 8u; - if (self->private_impl.f_pending_literal_width_plus_one > 0u) { - self->private_impl.f_literal_width = (self->private_impl.f_pending_literal_width_plus_one - 1u); - } - self->private_impl.f_clear_code = (((uint32_t)(1u)) << self->private_impl.f_literal_width); - self->private_impl.f_end_code = (self->private_impl.f_clear_code + 1u); - self->private_impl.f_save_code = self->private_impl.f_end_code; - self->private_impl.f_prev_code = self->private_impl.f_end_code; - self->private_impl.f_width = (self->private_impl.f_literal_width + 1u); - self->private_impl.f_bits = 0u; - self->private_impl.f_n_bits = 0u; - self->private_impl.f_output_ri = 0u; - self->private_impl.f_output_wi = 0u; - v_i = 0u; - while (v_i < self->private_impl.f_clear_code) { - self->private_data.f_lm1s[v_i] = 0u; - self->private_data.f_suffixes[v_i][0u] = ((uint8_t)(v_i)); - v_i += 1u; + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_a128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_a128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; } - while (true) { - wuffs_lzw__decoder__read_from(self, a_src); - if (self->private_impl.f_output_wi > 0u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_lzw__decoder__write_to(self, a_dst); - if (status.repr) { - goto suspend; - } - } - if (self->private_impl.f_read_from_return_value == 0u) { - break; - } else if (self->private_impl.f_read_from_return_value == 1u) { - continue; - } else if (self->private_impl.f_read_from_return_value == 2u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } else if (self->private_impl.f_read_from_return_value == 3u) { - status = wuffs_base__make_status(wuffs_lzw__error__truncated_input); - goto exit; - } else if (self->private_impl.f_read_from_return_value == 4u) { - status = wuffs_base__make_status(wuffs_lzw__error__bad_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); - goto exit; - } + v_curr.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_a128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; } - - ok: - self->private_impl.p_transform_io[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + v_curr.len = 0; } - return status; + return wuffs_base__make_empty_struct(); } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// -------- func lzw.decoder.read_from +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func png.decoder.filter_3_distance_4_x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_lzw__decoder__read_from( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_src) { - uint32_t v_clear_code = 0; - uint32_t v_end_code = 0; - uint32_t v_save_code = 0; - uint32_t v_prev_code = 0; - uint32_t v_width = 0; - uint32_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_output_wi = 0; - uint32_t v_code = 0; - uint32_t v_c = 0; - uint32_t v_o = 0; - uint32_t v_steps = 0; - uint8_t v_first_byte = 0; - uint16_t v_lm1_b = 0; - uint16_t v_lm1_a = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +wuffs_png__decoder__filter_3_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + __m128i v_x128 = {0}; + __m128i v_a128 = {0}; + __m128i v_b128 = {0}; + __m128i v_p128 = {0}; + __m128i v_k128 = {0}; - v_clear_code = self->private_impl.f_clear_code; - v_end_code = self->private_impl.f_end_code; - v_save_code = self->private_impl.f_save_code; - v_prev_code = self->private_impl.f_prev_code; - v_width = self->private_impl.f_width; - v_bits = self->private_impl.f_bits; - v_n_bits = self->private_impl.f_n_bits; - v_output_wi = self->private_impl.f_output_wi; - while (true) { - if (v_n_bits < v_width) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { - v_bits |= ((uint32_t)(wuffs_base__peek_u32le__no_bounds_check(iop_a_src) << v_n_bits)); - iop_a_src += ((31u - v_n_bits) >> 3u); - v_n_bits |= 24u; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - self->private_impl.f_read_from_return_value = 3u; - } else { - self->private_impl.f_read_from_return_value = 2u; - } - break; - } else { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - if (v_n_bits >= v_width) { - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - self->private_impl.f_read_from_return_value = 3u; - } else { - self->private_impl.f_read_from_return_value = 2u; - } - break; - } else { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - if (v_n_bits < v_width) { - self->private_impl.f_read_from_return_value = 5u; - break; - } - } - } - } - v_code = ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_width)); - v_bits >>= v_width; - v_n_bits -= v_width; - if (v_code < v_clear_code) { - self->private_data.f_output[v_output_wi] = ((uint8_t)(v_code)); - v_output_wi = ((v_output_wi + 1u) & 8191u); - if (v_save_code <= 4095u) { - v_lm1_a = (((uint16_t)(self->private_data.f_lm1s[v_prev_code] + 1u)) & 4095u); - self->private_data.f_lm1s[v_save_code] = v_lm1_a; - if ((v_lm1_a % 8u) != 0u) { - self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; - memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); - self->private_data.f_suffixes[v_save_code][(v_lm1_a % 8u)] = ((uint8_t)(v_code)); - } else { - self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); - self->private_data.f_suffixes[v_save_code][0u] = ((uint8_t)(v_code)); - } - v_save_code += 1u; - if (v_width < 12u) { - v_width += (1u & (v_save_code >> v_width)); - } - v_prev_code = v_code; - } - } else if (v_code <= v_end_code) { - if (v_code == v_end_code) { - self->private_impl.f_read_from_return_value = 0u; - break; - } - v_save_code = v_end_code; - v_prev_code = v_end_code; - v_width = (self->private_impl.f_literal_width + 1u); - } else if (v_code <= v_save_code) { - v_c = v_code; - if (v_code == v_save_code) { - v_c = v_prev_code; - } - v_o = ((v_output_wi + (((uint32_t)(self->private_data.f_lm1s[v_c])) & 4294967288u)) & 8191u); - v_output_wi = ((v_output_wi + 1u + ((uint32_t)(self->private_data.f_lm1s[v_c]))) & 8191u); - v_steps = (((uint32_t)(self->private_data.f_lm1s[v_c])) >> 3u); - while (true) { - memcpy((self->private_data.f_output)+(v_o), (self->private_data.f_suffixes[v_c]), 8u); - if (v_steps <= 0u) { - break; - } - v_steps -= 1u; - v_o = (((uint32_t)(v_o - 8u)) & 8191u); - v_c = ((uint32_t)(self->private_impl.f_prefixes[v_c])); - } - v_first_byte = self->private_data.f_suffixes[v_c][0u]; - if (v_code == v_save_code) { - self->private_data.f_output[v_output_wi] = v_first_byte; - v_output_wi = ((v_output_wi + 1u) & 8191u); + if (((uint64_t)(a_prev.len)) == 0u) { + v_k128 = _mm_set1_epi8((int8_t)(254u)); + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; } - if (v_save_code <= 4095u) { - v_lm1_b = (((uint16_t)(self->private_data.f_lm1s[v_prev_code] + 1u)) & 4095u); - self->private_data.f_lm1s[v_save_code] = v_lm1_b; - if ((v_lm1_b % 8u) != 0u) { - self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; - memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); - self->private_data.f_suffixes[v_save_code][(v_lm1_b % 8u)] = v_first_byte; - } else { - self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); - self->private_data.f_suffixes[v_save_code][0u] = ((uint8_t)(v_first_byte)); - } - v_save_code += 1u; - if (v_width < 12u) { - v_width += (1u & (v_save_code >> v_width)); - } - v_prev_code = v_code; + v_curr.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; } - } else { - self->private_impl.f_read_from_return_value = 4u; - break; - } - if (v_output_wi > 4095u) { - self->private_impl.f_read_from_return_value = 1u; - break; + v_curr.len = 0; } - } - if (self->private_impl.f_read_from_return_value != 2u) { - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - self->private_impl.f_read_from_return_value = 5u; - break; + } else { + v_k128 = _mm_set1_epi8((int8_t)(1u)); + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_p128 = _mm_avg_epu8(v_a128, v_b128); + v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_p128 = _mm_avg_epu8(v_a128, v_b128); + v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_p128 = _mm_avg_epu8(v_a128, v_b128); + v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; } + v_curr.len = 0; + v_prev.len = 0; } } - self->private_impl.f_save_code = v_save_code; - self->private_impl.f_prev_code = v_prev_code; - self->private_impl.f_width = v_width; - self->private_impl.f_bits = v_bits; - self->private_impl.f_n_bits = v_n_bits; - self->private_impl.f_output_wi = v_output_wi; - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - return wuffs_base__make_empty_struct(); } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// -------- func lzw.decoder.write_to +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func png.decoder.filter_4_distance_3_x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_lzw__decoder__write_to( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_dst) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__slice_u8 v_s = {0}; - uint64_t v_n = 0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + __m128i v_x128 = {0}; + __m128i v_a128 = {0}; + __m128i v_b128 = {0}; + __m128i v_c128 = {0}; + __m128i v_p128 = {0}; + __m128i v_pa128 = {0}; + __m128i v_pb128 = {0}; + __m128i v_pc128 = {0}; + __m128i v_smallest128 = {0}; + __m128i v_z128 = {0}; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 7, 6)); + while (v_curr.ptr < i_end0_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 3; + v_prev.ptr += 3; + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 3; + v_prev.ptr += 3; } - } - - uint32_t coro_susp_point = self->private_impl.p_write_to[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (self->private_impl.f_output_wi > 0u) { - if (self->private_impl.f_output_ri > self->private_impl.f_output_wi) { - status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); - goto exit; - } - v_s = wuffs_base__make_slice_u8_ij(self->private_data.f_output, - self->private_impl.f_output_ri, - self->private_impl.f_output_wi); - v_n = wuffs_base__io_writer__copy_from_slice(&iop_a_dst, io2_a_dst,v_s); - if (v_n == ((uint64_t)(v_s.len))) { - self->private_impl.f_output_ri = 0u; - self->private_impl.f_output_wi = 0u; - status = wuffs_base__make_status(NULL); - goto ok; - } - self->private_impl.f_output_ri = (((uint32_t)(self->private_impl.f_output_ri + ((uint32_t)(v_n)))) & 8191u); - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 4, 3)); + while (v_curr.ptr < i_end1_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 3; + v_prev.ptr += 3; } - - ok: - self->private_impl.p_write_to[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_write_to[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - - return status; -} - -// -------- func lzw.decoder.flush - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__slice_u8 -wuffs_lzw__decoder__flush( - wuffs_lzw__decoder* self) { - if (!self) { - return wuffs_base__make_slice_u8(NULL, 0); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_slice_u8(NULL, 0); - } - - uint32_t v_ri = 0; - uint32_t v_wi = 0; - - v_ri = self->private_impl.f_output_ri; - v_wi = self->private_impl.f_output_wi; - self->private_impl.f_output_ri = 0u; - self->private_impl.f_output_wi = 0u; - if (v_ri <= v_wi) { - return wuffs_base__make_slice_u8_ij(self->private_data.f_output, v_ri, v_wi); + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end2_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end2_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u24le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u24le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 0; + v_prev.len = 0; } - return wuffs_base__make_slice_u8(self->private_data.f_output, 0); + return wuffs_base__make_empty_struct(); } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) - -// ---------------- Status Codes Implementations - -const char wuffs_netpbm__error__bad_header[] = "#netpbm: bad header"; -const char wuffs_netpbm__error__truncated_input[] = "#netpbm: truncated input"; -const char wuffs_netpbm__error__unsupported_netpbm_file[] = "#netpbm: unsupported Netpbm file"; -const char wuffs_netpbm__note__internal_note_short_read[] = "@netpbm: internal note: short read"; - -// ---------------- Private Consts - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__do_decode_image_config( - wuffs_netpbm__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__do_decode_frame_config( - wuffs_netpbm__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__do_decode_frame( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func png.decoder.filter_4_distance_4_x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__swizzle( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -// ---------------- VTables - -const wuffs_base__image_decoder__func_ptrs -wuffs_netpbm__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_netpbm__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_netpbm__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_netpbm__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__history_retain_length), - (uint32_t(*)(const void*))(&wuffs_netpbm__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_netpbm__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_netpbm__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_netpbm__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_netpbm__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_netpbm__decoder__initialize( - wuffs_netpbm__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + __m128i v_x128 = {0}; + __m128i v_a128 = {0}; + __m128i v_b128 = {0}; + __m128i v_c128 = {0}; + __m128i v_p128 = {0}; + __m128i v_pa128 = {0}; + __m128i v_pb128 = {0}; + __m128i v_pc128 = {0}; + __m128i v_smallest128 = {0}; + __m128i v_z128 = {0}; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; } + v_curr.len = 0; + v_prev.len = 0; } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_netpbm__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); -} - -wuffs_netpbm__decoder* -wuffs_netpbm__decoder__alloc(void) { - wuffs_netpbm__decoder* x = - (wuffs_netpbm__decoder*)(calloc(sizeof(wuffs_netpbm__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_netpbm__decoder__initialize( - x, sizeof(wuffs_netpbm__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_netpbm__decoder(void) { - return sizeof(wuffs_netpbm__decoder); + return wuffs_base__make_empty_struct(); } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// ---------------- Function Implementations - -// -------- func netpbm.decoder.get_quirk +// -------- func png.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__get_quirk( - const wuffs_netpbm__decoder* self, +wuffs_png__decoder__get_quirk( + const wuffs_png__decoder* self, uint32_t a_key) { if (!self) { return 0; @@ -49804,15 +62628,18 @@ wuffs_netpbm__decoder__get_quirk( return 0; } + if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + return 1u; + } return 0u; } -// -------- func netpbm.decoder.set_quirk +// -------- func png.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__set_quirk( - wuffs_netpbm__decoder* self, +wuffs_png__decoder__set_quirk( + wuffs_png__decoder* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -49825,15 +62652,20 @@ wuffs_netpbm__decoder__set_quirk( : wuffs_base__error__initialize_not_called); } + if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, a_key, a_value); + return wuffs_base__make_status(NULL); + } return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func netpbm.decoder.decode_image_config +// -------- func png.decoder.decode_image_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_image_config( - wuffs_netpbm__decoder* self, +wuffs_png__decoder__decode_image_config( + wuffs_png__decoder* self, wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { @@ -49859,53 +62691,364 @@ wuffs_netpbm__decoder__decode_image_config( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_png__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_png__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func png.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_decode_image_config( + wuffs_png__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint64_t v_magic = 0; + uint64_t v_mark = 0; + uint32_t v_checksum_have = 0; + uint32_t v_checksum_want = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + if (coro_susp_point) { + v_checksum_have = self->private_data.s_do_decode_image_config.v_checksum_have; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if ( ! self->private_impl.f_seen_ihdr) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_0 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 56) { + t_0 = ((uint64_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_magic = t_0; + } + if (v_magic != 727905341920923785u) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_1 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 56) { + t_1 = ((uint64_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_magic = t_1; + } + if (v_magic != 5927942488114331648u) { + if (v_magic == 5278895250759221248u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_cgbi_extension); + goto exit; + } + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } + self->private_impl.f_chunk_type_array[0u] = 73u; + self->private_impl.f_chunk_type_array[1u] = 72u; + self->private_impl.f_chunk_type_array[2u] = 68u; + self->private_impl.f_chunk_type_array[3u] = 82u; + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); + while (true) { + v_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_png__decoder__decode_ihdr(self, a_src); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if ( ! self->private_impl.f_ignore_checksum) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + v_checksum_want = t_3; + } + if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != v_checksum_want)) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); + goto exit; + } + self->private_impl.f_seen_ihdr = true; + } else if (self->private_impl.f_metadata_fourcc != 0u) { + self->private_impl.f_call_sequence = 16u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; + } while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + continue; + } + self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); + if (self->private_impl.f_chunk_type == 1413563465u) { + if ( ! self->private_impl.f_seen_actl || self->private_impl.f_seen_fctl) { + break; + } + self->private_impl.f_seen_idat = true; + } else if (self->private_impl.f_chunk_type == 1413571686u) { + if (self->private_impl.f_seen_idat && self->private_impl.f_seen_fctl) { + break; + } + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + iop_a_src += 8u; + if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u)) { + self->private_impl.f_chunk_type_array[0u] = ((uint8_t)((self->private_impl.f_chunk_type >> 0u))); + self->private_impl.f_chunk_type_array[1u] = ((uint8_t)((self->private_impl.f_chunk_type >> 8u))); + self->private_impl.f_chunk_type_array[2u] = ((uint8_t)((self->private_impl.f_chunk_type >> 16u))); + self->private_impl.f_chunk_type_array[3u] = ((uint8_t)((self->private_impl.f_chunk_type >> 24u))); + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); + } + while (true) { + v_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_4 = wuffs_png__decoder__decode_other_chunk(self, a_src, false); + v_status = t_4; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u)) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + } + if (self->private_impl.f_metadata_fourcc != 0u) { + self->private_impl.f_call_sequence = 16u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; + } { - wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_5 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 24) { + t_5 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } + } + v_checksum_want = t_5; } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u) && (v_checksum_have != v_checksum_want)) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); goto exit; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } + if ((self->private_impl.f_color_type == 3u) && ! self->private_impl.f_seen_plte) { + status = wuffs_base__make_status(wuffs_png__error__missing_palette); + goto exit; + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + self->private_impl.f_first_config_io_position = self->private_impl.f_frame_config_io_position; + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_dst_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_first_config_io_position, + ((self->private_impl.f_color_type <= 3u) && ! self->private_impl.f_seen_trns)); + } + if ( ! self->private_impl.f_seen_actl) { + self->private_impl.f_num_animation_frames_value = 1u; + self->private_impl.f_first_rect_x0 = 0u; + self->private_impl.f_first_rect_y0 = 0u; + self->private_impl.f_first_rect_x1 = self->private_impl.f_width; + self->private_impl.f_first_rect_y1 = self->private_impl.f_height; + self->private_impl.f_first_duration = 0u; + self->private_impl.f_first_disposal = 0u; + self->private_impl.f_first_overwrite_instead_of_blend = false; + } + self->private_impl.f_call_sequence = 32u; ok: - self->private_impl.p_decode_image_config[0] = 0; + self->private_impl.p_do_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_image_config.v_checksum_have = v_checksum_have; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func netpbm.decoder.do_decode_image_config +// -------- func png.decoder.decode_ihdr WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_netpbm__decoder__do_decode_image_config( - wuffs_netpbm__decoder* self, - wuffs_base__image_config* a_dst, +wuffs_png__decoder__decode_ihdr( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint32_t v_n = 0; + uint32_t v_a32 = 0; + uint8_t v_a8 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -49918,348 +63061,343 @@ wuffs_netpbm__decoder__do_decode_image_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_ihdr; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_ihdr.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_ihdr.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + v_a32 = t_0; + } + if ((v_a32 == 0u) || (v_a32 > 2147483647u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } else if (v_a32 > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); goto exit; } + self->private_impl.f_width = v_a32; { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_ihdr.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_ihdr.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); + } + } + v_a32 = t_1; + } + if ((v_a32 == 0u) || (v_a32 > 2147483647u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } else if (v_a32 > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_height = v_a32; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; + uint8_t t_2 = *iop_a_src++; + v_a8 = t_2; } - if (v_c != 80u) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + if (v_a8 > 16u) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); goto exit; } + self->private_impl.f_depth = v_a8; { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; + uint8_t t_3 = *iop_a_src++; + v_a8 = t_3; } - if ((v_c < 49u) || (55u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } else if (v_c == 53u) { - self->private_impl.f_pixfmt = 536870920u; - } else if (v_c == 54u) { - self->private_impl.f_pixfmt = 2684356744u; - } else { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + if ((v_a8 == 1u) || (v_a8 == 5u) || (v_a8 > 6u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); goto exit; } + self->private_impl.f_color_type = v_a8; { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_2 = *iop_a_src++; - v_c = t_2; + uint8_t t_4 = *iop_a_src++; + v_a8 = t_4; } - if (v_c != 10u) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + if (v_a8 != 0u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); goto exit; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; - } - if ((v_c == 32u) || (v_c == 9u)) { - continue; - } else if (v_c == 35u) { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; - } - if (v_c == 10u) { - break; - } - } - continue; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - self->private_impl.f_width = ((uint32_t)((v_c - 48u))); - break; + uint8_t t_5 = *iop_a_src++; + v_a8 = t_5; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; - } - if ((v_c == 32u) || (v_c == 9u)) { - break; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - v_n = ((10u * self->private_impl.f_width) + ((uint32_t)((v_c - 48u)))); - if (v_n > 16777215u) { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; - } - self->private_impl.f_width = v_n; + if (v_a8 != 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_6 = *iop_a_src++; - v_c = t_6; - } - if ((v_c == 32u) || (v_c == 9u)) { - continue; - } else if (v_c == 35u) { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_7 = *iop_a_src++; - v_c = t_7; - } - if (v_c == 10u) { - break; - } - } - continue; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - self->private_impl.f_height = ((uint32_t)((v_c - 48u))); - break; + uint8_t t_6 = *iop_a_src++; + v_a8 = t_6; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_8 = *iop_a_src++; - v_c = t_8; - } - if ((v_c == 32u) || (v_c == 9u) || (v_c == 13u)) { - continue; - } else if (v_c == 10u) { - break; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - v_n = ((10u * self->private_impl.f_height) + ((uint32_t)((v_c - 48u)))); - if (v_n > 16777215u) { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; - } - self->private_impl.f_height = v_n; + if (v_a8 == 0u) { + self->private_impl.f_interlace_pass = 0u; + } else if (v_a8 == 1u) { + self->private_impl.f_interlace_pass = 1u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_9 = *iop_a_src++; - v_c = t_9; - } - if ((v_c == 32u) || (v_c == 9u)) { - continue; - } else if (v_c == 35u) { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_10 = *iop_a_src++; - v_c = t_10; - } - if (v_c == 10u) { - break; - } - } - continue; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - self->private_impl.f_max_value = ((uint32_t)((v_c - 48u))); - break; + self->private_impl.f_filter_distance = 0u; + wuffs_png__decoder__assign_filter_distance(self); + if (self->private_impl.f_filter_distance == 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_11 = *iop_a_src++; - v_c = t_11; - } - if ((v_c == 32u) || (v_c == 9u) || (v_c == 13u)) { - continue; - } else if (v_c == 10u) { - break; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - v_n = ((10u * self->private_impl.f_max_value) + ((uint32_t)((v_c - 48u)))); - if (v_n > 16777215u) { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; + self->private_impl.f_overall_workbuf_length = (((uint64_t)(self->private_impl.f_height)) * (1u + wuffs_png__decoder__calculate_bytes_per_row(self, self->private_impl.f_width))); + wuffs_png__decoder__choose_filter_implementations(self); + + goto ok; + ok: + self->private_impl.p_decode_ihdr = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_ihdr = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func png.decoder.assign_filter_distance + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__assign_filter_distance( + wuffs_png__decoder* self) { + if (self->private_impl.f_depth < 8u) { + if ((self->private_impl.f_depth != 1u) && (self->private_impl.f_depth != 2u) && (self->private_impl.f_depth != 4u)) { + return wuffs_base__make_empty_struct(); + } else if (self->private_impl.f_color_type == 0u) { + self->private_impl.f_dst_pixfmt = 536870920u; + self->private_impl.f_src_pixfmt = 536870920u; + } else if (self->private_impl.f_color_type == 3u) { + self->private_impl.f_dst_pixfmt = 2198077448u; + self->private_impl.f_src_pixfmt = 2198077448u; + } else { + return wuffs_base__make_empty_struct(); + } + self->private_impl.f_filter_distance = 1u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + } else if (self->private_impl.f_color_type == 0u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 536870920u; + self->private_impl.f_src_pixfmt = 536870920u; + self->private_impl.f_filter_distance = 1u; + } else if (self->private_impl.f_depth == 16u) { + if (self->private_impl.f_interlace_pass == 0u) { + self->private_impl.f_dst_pixfmt = 536870923u; + self->private_impl.f_src_pixfmt = 537919499u; + } else { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; } - self->private_impl.f_max_value = v_n; + self->private_impl.f_filter_distance = 2u; } - if (self->private_impl.f_max_value != 255u) { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; + } else if (self->private_impl.f_color_type == 2u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 2147485832u; + self->private_impl.f_src_pixfmt = 2684356744u; + self->private_impl.f_filter_distance = 3u; + } else if (self->private_impl.f_depth == 16u) { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + self->private_impl.f_filter_distance = 6u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - self->private_impl.f_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - false); + } else if (self->private_impl.f_color_type == 3u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 2198077448u; + self->private_impl.f_src_pixfmt = 2198077448u; + self->private_impl.f_filter_distance = 1u; + } + } else if (self->private_impl.f_color_type == 4u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 553648264u; + self->private_impl.f_src_pixfmt = 553648264u; + self->private_impl.f_filter_distance = 2u; + } else if (self->private_impl.f_depth == 16u) { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + self->private_impl.f_filter_distance = 4u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + } + } else if (self->private_impl.f_color_type == 6u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 2164295816u; + self->private_impl.f_src_pixfmt = 2701166728u; + self->private_impl.f_filter_distance = 4u; + } else if (self->private_impl.f_depth == 16u) { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + self->private_impl.f_filter_distance = 8u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); } - self->private_impl.f_call_sequence = 32u; - - goto ok; - ok: - self->private_impl.p_do_decode_image_config[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_do_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - - return status; + return wuffs_base__make_empty_struct(); } -// -------- func netpbm.decoder.decode_frame_config +// -------- func png.decoder.calculate_bytes_per_row WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_frame_config( - wuffs_netpbm__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_frame_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } +static uint64_t +wuffs_png__decoder__calculate_bytes_per_row( + const wuffs_png__decoder* self, + uint32_t a_width) { + uint64_t v_bytes_per_channel = 0; - ok: - self->private_impl.p_decode_frame_config[0] = 0; - goto exit; + if (self->private_impl.f_depth == 1u) { + return ((uint64_t)(((a_width + 7u) / 8u))); + } else if (self->private_impl.f_depth == 2u) { + return ((uint64_t)(((a_width + 3u) / 4u))); + } else if (self->private_impl.f_depth == 4u) { + return ((uint64_t)(((a_width + 1u) / 2u))); } + v_bytes_per_channel = ((uint64_t)(((uint8_t)(self->private_impl.f_depth >> 3u)))); + return (((uint64_t)(a_width)) * v_bytes_per_channel * ((uint64_t)(WUFFS_PNG__NUM_CHANNELS[self->private_impl.f_color_type]))); +} - goto suspend; - suspend: - self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; +// -------- func png.decoder.choose_filter_implementations - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__choose_filter_implementations( + wuffs_png__decoder* self) { + if (self->private_impl.f_filter_distance == 3u) { + self->private_impl.choosy_filter_1 = ( + &wuffs_png__decoder__filter_1_distance_3_fallback); + self->private_impl.choosy_filter_3 = ( + &wuffs_png__decoder__filter_3_distance_3_fallback); + self->private_impl.choosy_filter_4 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_4_distance_3_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_4_distance_3_x86_sse42 : +#endif + &wuffs_png__decoder__filter_4_distance_3_fallback); + } else if (self->private_impl.f_filter_distance == 4u) { + self->private_impl.choosy_filter_1 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_1_distance_4_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_1_distance_4_x86_sse42 : +#endif + &wuffs_png__decoder__filter_1_distance_4_fallback); + self->private_impl.choosy_filter_3 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_3_distance_4_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_3_distance_4_x86_sse42 : +#endif + &wuffs_png__decoder__filter_3_distance_4_fallback); + self->private_impl.choosy_filter_4 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_4_distance_4_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_4_distance_4_x86_sse42 : +#endif + &wuffs_png__decoder__filter_4_distance_4_fallback); } - return status; + return wuffs_base__make_empty_struct(); } -// -------- func netpbm.decoder.do_decode_frame_config +// -------- func png.decoder.decode_other_chunk WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_netpbm__decoder__do_decode_frame_config( - wuffs_netpbm__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_png__decoder__decode_other_chunk( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src, + bool a_framy) { wuffs_base__status status = wuffs_base__make_status(NULL); const uint8_t* iop_a_src = NULL; @@ -50273,62 +63411,218 @@ wuffs_netpbm__decoder__do_decode_frame_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_other_chunk; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if ((self->private_impl.f_chunk_type == 1163152464u) && ! a_framy) { + if (self->private_impl.f_seen_plte) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } else if (self->private_impl.f_color_type == 3u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_png__decoder__decode_plte(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if ((self->private_impl.f_color_type == 2u) || (self->private_impl.f_color_type == 6u)) { + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_netpbm__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + self->private_impl.f_seen_plte = true; + } else if ((self->private_impl.f_chunk_type & 32u) == 0u) { + if (self->private_impl.f_chunk_type != 1413563465u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - if (status.repr) { - goto suspend; + } + if (self->private_impl.f_chunk_type == 1716082789u) { + if (self->private_impl.f_report_metadata_exif) { + if (self->private_impl.f_seen_exif) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_png__decoder__decode_exif(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_exif = true; } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; + } else if ((self->private_impl.f_chunk_type == 1951945833u) || (self->private_impl.f_chunk_type == 1951942004u) || (self->private_impl.f_chunk_type == 1951945850u)) { + if (self->private_impl.f_report_metadata_kvp) { + self->private_impl.f_metadata_flavor = 4u; + self->private_impl.f_metadata_fourcc = 1263947851u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + } + } else if ( ! a_framy) { + if (self->private_impl.f_chunk_type == 1280598881u) { + if (self->private_impl.f_seen_actl) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_png__decoder__decode_actl(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_actl = true; + } else if (self->private_impl.f_chunk_type == 1297238115u) { + if (self->private_impl.f_report_metadata_chrm) { + if (self->private_impl.f_seen_chrm) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_png__decoder__decode_chrm(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_chrm = true; + } + } else if (self->private_impl.f_chunk_type == 1280598886u) { + if (self->private_impl.f_seen_fctl) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + status = wuffs_png__decoder__decode_fctl(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_fctl = true; + } else if (self->private_impl.f_chunk_type == 1095582055u) { + if (self->private_impl.f_report_metadata_gama) { + if (self->private_impl.f_seen_gama) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + status = wuffs_png__decoder__decode_gama(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_gama = true; + } + } else if (self->private_impl.f_chunk_type == 1346585449u) { + if (self->private_impl.f_report_metadata_iccp) { + if (self->private_impl.f_seen_iccp) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + status = wuffs_png__decoder__decode_iccp(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_iccp = true; + } + } else if (self->private_impl.f_chunk_type == 1111970419u) { + if (self->private_impl.f_report_metadata_srgb) { + if (self->private_impl.f_seen_srgb) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_png__decoder__decode_srgb(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_srgb = true; + } + } else if (self->private_impl.f_chunk_type == 1397641844u) { + if (self->private_impl.f_seen_trns || ((self->private_impl.f_color_type == 3u) && ! self->private_impl.f_seen_plte)) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } else if (self->private_impl.f_color_type > 3u) { + } else { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_png__decoder__decode_trns(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + self->private_impl.f_seen_trns = true; } - } else if (self->private_impl.f_call_sequence == 64u) { - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height), - ((wuffs_base__flicks)(0u)), - 0u, - self->private_impl.f_frame_config_io_position, - 0u, - false, - false, - 0u); + if (self->private_impl.f_metadata_fourcc == 0u) { + self->private_data.s_decode_other_chunk.scratch = self->private_impl.f_chunk_length; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (self->private_data.s_decode_other_chunk.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_decode_other_chunk.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_decode_other_chunk.scratch; } - self->private_impl.f_call_sequence = 64u; + goto ok; ok: - self->private_impl.p_do_decode_frame_config[0] = 0; + self->private_impl.p_decode_other_chunk = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_other_chunk = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -50339,181 +63633,130 @@ wuffs_netpbm__decoder__do_decode_frame_config( return status; } -// -------- func netpbm.decoder.decode_frame - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_frame( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_frame[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func netpbm.decoder.do_decode_frame +// -------- func png.decoder.decode_actl WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_netpbm__decoder__do_decode_frame( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { +wuffs_png__decoder__decode_actl( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_actl; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_netpbm__decoder__do_decode_frame_config(self, NULL, a_src); - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; + if (self->private_impl.f_chunk_length != 8u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } else if (self->private_impl.f_interlace_pass > 0u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + goto exit; } - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y = 0u; - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette(a_dst), - wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), - wuffs_base__utility__empty_slice_u8(), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; + self->private_impl.f_chunk_length = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_actl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_actl.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } } - goto ok; + self->private_impl.f_num_animation_frames_value = t_0; } - while (true) { - v_status = wuffs_netpbm__decoder__swizzle(self, a_dst, a_src); - if (wuffs_base__status__is_ok(&v_status)) { - break; - } else if (v_status.repr != wuffs_netpbm__note__internal_note_short_read) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; + if (self->private_impl.f_num_animation_frames_value == 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_actl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_actl.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); } - goto ok; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + self->private_impl.f_num_animation_loops_value = t_1; } - self->private_impl.f_call_sequence = 96u; + goto ok; ok: - self->private_impl.p_do_decode_frame[0] = 0; + self->private_impl.p_decode_actl = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_actl = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return status; } -// -------- func netpbm.decoder.swizzle +// -------- func png.decoder.decode_chrm WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_netpbm__decoder__swizzle( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, +wuffs_png__decoder__decode_chrm( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row = 0; - uint32_t v_src_bytes_per_pixel = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_i = 0; - uint64_t v_j = 0; - uint64_t v_n = 0; + uint64_t v_u = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -50526,543 +63769,337 @@ wuffs_netpbm__decoder__swizzle( io2_a_src = io0_a_src + a_src->meta.wi; } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - while (true) { - if (self->private_impl.f_dst_x == self->private_impl.f_width) { - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += 1u; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - break; - } - } - v_dst = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + uint32_t coro_susp_point = self->private_impl.p_decode_chrm; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_chunk_length != 32u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); - if (v_i >= ((uint64_t)(v_dst.len))) { - v_src_bytes_per_pixel = 1u; - if (self->private_impl.f_pixfmt == 2684356744u) { - v_src_bytes_per_pixel = 3u; - } - v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); - v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); - v_j = v_n; - while (v_j >= 8u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { - iop_a_src += (v_src_bytes_per_pixel * 8u); + self->private_impl.f_chunk_length = 0u; + self->private_impl.f_metadata_flavor = 5u; + self->private_impl.f_metadata_fourcc = 1128813133u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); } - v_j -= 8u; } - while (v_j > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { - iop_a_src += (v_src_bytes_per_pixel * 1u); + v_u = t_0; + } + self->private_impl.f_metadata_x |= ((16777215u & v_u) << 0u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); } - v_j -= 1u; } - } else { - v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( - &self->private_impl.f_swizzler, - wuffs_base__slice_u8__subslice_i(v_dst, v_i), - wuffs_base__pixel_buffer__palette(a_dst), - &iop_a_src, - io2_a_src); - } - if (v_n == 0u) { - status = wuffs_base__make_status(wuffs_netpbm__note__internal_note_short_read); - goto ok; + v_u = t_1; } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); - } - status = wuffs_base__make_status(NULL); - goto ok; - - ok: - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func netpbm.decoder.frame_dirty_rect - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_netpbm__decoder__frame_dirty_rect( - const wuffs_netpbm__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} - -// -------- func netpbm.decoder.num_animation_loops - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_netpbm__decoder__num_animation_loops( - const wuffs_netpbm__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func netpbm.decoder.num_decoded_frame_configs - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__num_decoded_frame_configs( - const wuffs_netpbm__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 32u) { - return 1u; - } - return 0u; -} - -// -------- func netpbm.decoder.num_decoded_frames - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__num_decoded_frames( - const wuffs_netpbm__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 64u) { - return 1u; - } - return 0u; -} - -// -------- func netpbm.decoder.restart_frame - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__restart_frame( - wuffs_netpbm__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if ((a_index != 0u) || (a_io_position != self->private_impl.f_frame_config_io_position)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - self->private_impl.f_call_sequence = 40u; - return wuffs_base__make_status(NULL); -} - -// -------- func netpbm.decoder.set_report_metadata - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_netpbm__decoder__set_report_metadata( - wuffs_netpbm__decoder* self, - uint32_t a_fourcc, - bool a_report) { - return wuffs_base__make_empty_struct(); -} - -// -------- func netpbm.decoder.tell_me_more - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__tell_me_more( - wuffs_netpbm__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; - - goto ok; - ok: - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func netpbm.decoder.history_retain_length - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__history_retain_length( - const wuffs_netpbm__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func netpbm.decoder.workbuf_len - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_netpbm__decoder__workbuf_len( - const wuffs_netpbm__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } - - return wuffs_base__utility__make_range_ii_u64(0u, 0u); -} - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) - -// ---------------- Status Codes Implementations - -const char wuffs_nie__error__bad_header[] = "#nie: bad header"; -const char wuffs_nie__error__truncated_input[] = "#nie: truncated input"; -const char wuffs_nie__error__unsupported_nie_file[] = "#nie: unsupported NIE file"; -const char wuffs_nie__note__internal_note_short_read[] = "@nie: internal note: short read"; - -// ---------------- Private Consts - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_nie__decoder__do_decode_image_config( - wuffs_nie__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_nie__decoder__do_decode_frame_config( - wuffs_nie__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_nie__decoder__do_decode_frame( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_nie__decoder__swizzle( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -// ---------------- VTables - -const wuffs_base__image_decoder__func_ptrs -wuffs_nie__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_nie__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_nie__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_nie__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_nie__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_nie__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_nie__decoder__history_retain_length), - (uint32_t(*)(const void*))(&wuffs_nie__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_nie__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_nie__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_nie__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_nie__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_nie__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_nie__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_nie__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_nie__decoder__initialize( - wuffs_nie__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } - - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + self->private_impl.f_metadata_x |= ((16777215u & v_u) << 24u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint64_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 24) { + t_2 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } + } + v_u = t_2; } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + self->private_impl.f_metadata_x |= ((uint64_t)((16777215u & v_u) << 48u)); + self->private_impl.f_metadata_y |= ((16777215u & v_u) >> 16u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint64_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + v_u = t_3; } - } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_nie__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); -} - -wuffs_nie__decoder* -wuffs_nie__decoder__alloc(void) { - wuffs_nie__decoder* x = - (wuffs_nie__decoder*)(calloc(sizeof(wuffs_nie__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_nie__decoder__initialize( - x, sizeof(wuffs_nie__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_nie__decoder(void) { - return sizeof(wuffs_nie__decoder); -} - -// ---------------- Function Implementations - -// -------- func nie.decoder.get_quirk + self->private_impl.f_metadata_y |= ((16777215u & v_u) << 8u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint64_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_4 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 24) { + t_4 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); + } + } + v_u = t_4; + } + self->private_impl.f_metadata_y |= ((16777215u & v_u) << 32u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + uint64_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_5 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 24) { + t_5 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } + } + v_u = t_5; + } + self->private_impl.f_metadata_y |= ((uint64_t)((16777215u & v_u) << 56u)); + self->private_impl.f_metadata_z |= ((16777215u & v_u) >> 8u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + uint64_t t_6; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_6 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); + if (num_bits_6 == 24) { + t_6 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)); + } + } + v_u = t_6; + } + self->private_impl.f_metadata_z |= ((16777215u & v_u) << 16u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + uint64_t t_7; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_7 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_7); + if (num_bits_7 == 24) { + t_7 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)); + } + } + v_u = t_7; + } + self->private_impl.f_metadata_z |= ((16777215u & v_u) << 40u); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__get_quirk( - const wuffs_nie__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + goto ok; + ok: + self->private_impl.p_decode_chrm = 0; + goto exit; } - return 0u; -} - -// -------- func nie.decoder.set_quirk + goto suspend; + suspend: + self->private_impl.p_decode_chrm = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__set_quirk( - wuffs_nie__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + return status; } -// -------- func nie.decoder.decode_image_config +// -------- func png.decoder.decode_exif WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_image_config( - wuffs_nie__decoder* self, - wuffs_base__image_config* a_dst, +static wuffs_base__status +wuffs_png__decoder__decode_exif( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_nie__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } - ok: - self->private_impl.p_decode_image_config[0] = 0; + if (self->private_impl.f_chunk_length < 4u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); goto exit; } + self->private_impl.f_metadata_flavor = 3u; + self->private_impl.f_metadata_fourcc = 1163413830u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + self->private_impl.f_metadata_z = wuffs_base__u64__sat_add(self->private_impl.f_metadata_y, ((uint64_t)(self->private_impl.f_chunk_length))); + self->private_impl.f_chunk_length = 0u; - goto suspend; - suspend: - self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - + goto ok; + ok: goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func nie.decoder.do_decode_image_config +// -------- func png.decoder.decode_fctl WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_nie__decoder__do_decode_image_config( - wuffs_nie__decoder* self, - wuffs_base__image_config* a_dst, +wuffs_png__decoder__decode_fctl( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_a = 0; + uint32_t v_x0 = 0; + uint32_t v_y0 = 0; + uint32_t v_x1 = 0; + uint32_t v_y1 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -51075,185 +64112,309 @@ wuffs_nie__decoder__do_decode_image_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_fctl; + if (coro_susp_point) { + v_x0 = self->private_data.s_decode_fctl.v_x0; + v_x1 = self->private_data.s_decode_fctl.v_x1; + v_y1 = self->private_data.s_decode_fctl.v_y1; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + if (self->private_impl.f_chunk_length != 26u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); goto exit; } + self->private_impl.f_chunk_length = 0u; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); uint32_t t_0; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; + self->private_data.s_decode_fctl.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch)); + t_0 = ((uint32_t)(*scratch >> 32)); break; } num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; + *scratch |= ((uint64_t)(num_bits_0)); } } - v_a = t_0; + v_x0 = t_0; } - if (v_a != 1169146734u) { - status = wuffs_base__make_status(wuffs_nie__error__bad_header); + if (v_x0 != self->private_impl.f_next_animation_seq_num) { + status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); + goto exit; + } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); goto exit; } + self->private_impl.f_next_animation_seq_num += 1u; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); uint32_t t_1; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; + self->private_data.s_decode_fctl.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch)); + t_1 = ((uint32_t)(*scratch >> 32)); break; } num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; + *scratch |= ((uint64_t)(num_bits_1)); } } - v_a = t_1; - } - if (v_a == 879649535u) { - self->private_impl.f_pixfmt = 2164295816u; - } else if (v_a == 946758399u) { - self->private_impl.f_pixfmt = 2164308923u; - } else if (v_a == 879780607u) { - status = wuffs_base__make_status(wuffs_nie__error__unsupported_nie_file); - goto exit; - } else if (v_a == 946889471u) { - status = wuffs_base__make_status(wuffs_nie__error__unsupported_nie_file); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_nie__error__bad_header); - goto exit; + v_x1 = t_1; } { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); uint32_t t_2; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; + self->private_data.s_decode_fctl.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch)); + t_2 = ((uint32_t)(*scratch >> 32)); break; } num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; + *scratch |= ((uint64_t)(num_bits_2)); } } - v_a = t_2; - } - if (v_a > 2147483647u) { - status = wuffs_base__make_status(wuffs_nie__error__bad_header); - goto exit; - } else if (v_a > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; + v_y1 = t_2; } - self->private_impl.f_width = v_a; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); uint32_t t_3; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; + self->private_data.s_decode_fctl.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + v_x0 = t_3; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_4 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_fctl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 24) { + t_4 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); + } + } + v_y0 = t_4; + } + v_x1 += v_x0; + v_y1 += v_y0; + if ((v_x0 >= v_x1) || + (v_x0 > self->private_impl.f_width) || + (v_x1 > self->private_impl.f_width) || + (v_y0 >= v_y1) || + (v_y0 > self->private_impl.f_height) || + (v_y1 > self->private_impl.f_height)) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_frame_rect_x0 = v_x0; + self->private_impl.f_frame_rect_y0 = v_y0; + self->private_impl.f_frame_rect_x1 = v_x1; + self->private_impl.f_frame_rect_y1 = v_y1; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_5 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_fctl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 8) { + t_5 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } + } + v_x0 = t_5; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + uint32_t t_6; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_6 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_fctl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch)); + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); + if (num_bits_6 == 8) { + t_6 = ((uint32_t)(*scratch >> 48)); break; } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)) << 56; + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)); } } - v_a = t_3; + v_x1 = t_6; } - if (v_a > 2147483647u) { - status = wuffs_base__make_status(wuffs_nie__error__bad_header); + if (v_x1 <= 0u) { + self->private_impl.f_frame_duration = (((uint64_t)(v_x0)) * 7056000u); + } else { + self->private_impl.f_frame_duration = ((((uint64_t)(v_x0)) * 705600000u) / ((uint64_t)(v_x1))); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_7 = *iop_a_src++; + v_x0 = t_7; + } + if (v_x0 == 0u) { + self->private_impl.f_frame_disposal = 0u; + } else if (v_x0 == 1u) { + self->private_impl.f_frame_disposal = 1u; + } else if (v_x0 == 2u) { + self->private_impl.f_frame_disposal = 2u; + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); goto exit; - } else if (v_a > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_8 = *iop_a_src++; + v_x0 = t_8; + } + if (v_x0 == 0u) { + self->private_impl.f_frame_overwrite_instead_of_blend = true; + } else if (v_x0 == 1u) { + self->private_impl.f_frame_overwrite_instead_of_blend = false; + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); goto exit; } - self->private_impl.f_height = v_a; - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - self->private_impl.f_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - 16u, - false); + if (self->private_impl.f_num_decoded_frame_configs_value == 0u) { + self->private_impl.f_first_rect_x0 = self->private_impl.f_frame_rect_x0; + self->private_impl.f_first_rect_y0 = self->private_impl.f_frame_rect_y0; + self->private_impl.f_first_rect_x1 = self->private_impl.f_frame_rect_x1; + self->private_impl.f_first_rect_y1 = self->private_impl.f_frame_rect_y1; + self->private_impl.f_first_duration = self->private_impl.f_frame_duration; + self->private_impl.f_first_disposal = self->private_impl.f_frame_disposal; + self->private_impl.f_first_overwrite_instead_of_blend = self->private_impl.f_frame_overwrite_instead_of_blend; } - self->private_impl.f_call_sequence = 32u; goto ok; ok: - self->private_impl.p_do_decode_image_config[0] = 0; + self->private_impl.p_decode_fctl = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_fctl = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_fctl.v_x0 = v_x0; + self->private_data.s_decode_fctl.v_x1 = v_x1; + self->private_data.s_decode_fctl.v_y1 = v_y1; goto exit; exit: @@ -51264,82 +64425,99 @@ wuffs_nie__decoder__do_decode_image_config( return status; } -// -------- func nie.decoder.decode_frame_config +// -------- func png.decoder.decode_gama WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_frame_config( - wuffs_nie__decoder* self, - wuffs_base__frame_config* a_dst, +static wuffs_base__status +wuffs_png__decoder__decode_gama( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_gama; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - while (true) { - { - wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_frame_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_nie__error__truncated_input); - goto exit; + if (self->private_impl.f_chunk_length != 4u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length = 0u; + self->private_impl.f_metadata_flavor = 5u; + self->private_impl.f_metadata_fourcc = 1195461953u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_gama.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_gama.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + self->private_impl.f_metadata_x = t_0; } + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + goto ok; ok: - self->private_impl.p_decode_frame_config[0] = 0; + self->private_impl.p_decode_gama = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + self->private_impl.p_decode_gama = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func nie.decoder.do_decode_frame_config +// -------- func png.decoder.decode_iccp WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_nie__decoder__do_decode_frame_config( - wuffs_nie__decoder* self, - wuffs_base__frame_config* a_dst, +wuffs_png__decoder__decode_iccp( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); + uint8_t v_c8 = 0; + const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -51351,62 +64529,63 @@ wuffs_nie__decoder__do_decode_frame_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_iccp; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + while (true) { + if (self->private_impl.f_chunk_length <= 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_nie__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + self->private_impl.f_chunk_length -= 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } - if (status.repr) { - goto suspend; + if (v_c8 == 0u) { + break; } - } else if (self->private_impl.f_call_sequence == 40u) { - if (16u != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; + } + if (self->private_impl.f_chunk_length <= 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - } else if (self->private_impl.f_call_sequence == 64u) { - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height), - ((wuffs_base__flicks)(0u)), - 0u, - 16u, - 0u, - false, - false, - 0u); + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); + goto exit; } - self->private_impl.f_call_sequence = 64u; + self->private_impl.f_metadata_is_zlib_compressed = true; + self->private_impl.f_metadata_flavor = 4u; + self->private_impl.f_metadata_fourcc = 1229144912u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + goto ok; ok: - self->private_impl.p_do_decode_frame_config[0] = 0; + self->private_impl.p_decode_iccp = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_iccp = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -51417,182 +64596,119 @@ wuffs_nie__decoder__do_decode_frame_config( return status; } -// -------- func nie.decoder.decode_frame +// -------- func png.decoder.decode_plte WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_frame( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; +static wuffs_base__status +wuffs_png__decoder__decode_plte( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_nie__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } + uint32_t v_num_entries = 0; + uint32_t v_i = 0; + uint32_t v_argb = 0; - ok: - self->private_impl.p_decode_frame[0] = 0; - goto exit; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - goto suspend; - suspend: - self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + uint32_t coro_susp_point = self->private_impl.p_decode_plte; + if (coro_susp_point) { + v_num_entries = self->private_data.s_decode_plte.v_num_entries; + v_i = self->private_data.s_decode_plte.v_i; } - return status; -} - -// -------- func nie.decoder.do_decode_frame - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_nie__decoder__do_decode_frame( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame[0]; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_nie__decoder__do_decode_frame_config(self, NULL, a_src); - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y = 0u; - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette(a_dst), - wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), - wuffs_base__utility__empty_slice_u8(), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; + if ((self->private_impl.f_chunk_length > 768u) || ((self->private_impl.f_chunk_length % 3u) != 0u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - while (true) { - v_status = wuffs_nie__decoder__swizzle(self, a_dst, a_src); - if (wuffs_base__status__is_ok(&v_status)) { - break; - } else if (v_status.repr != wuffs_nie__note__internal_note_short_read) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; + v_num_entries = (((uint32_t)(self->private_impl.f_chunk_length)) / 3u); + self->private_impl.f_chunk_length = 0u; + while (v_i < v_num_entries) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { + t_0 = ((uint32_t)(wuffs_base__peek_u24be__no_bounds_check(iop_a_src))); + iop_a_src += 3; + } else { + self->private_data.s_decode_plte.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_plte.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 16) { + t_0 = ((uint32_t)(*scratch >> 40)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } } - goto ok; + v_argb = t_0; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + v_argb |= 4278190080u; + self->private_data.f_src_palette[((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); + self->private_data.f_src_palette[((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); + self->private_data.f_src_palette[((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); + self->private_data.f_src_palette[((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); + v_i += 1u; + } + while (v_i < 256u) { + self->private_data.f_src_palette[((4u * v_i) + 0u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 1u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 2u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 3u)] = 255u; + v_i += 1u; } - self->private_impl.f_call_sequence = 96u; + goto ok; ok: - self->private_impl.p_do_decode_frame[0] = 0; + self->private_impl.p_decode_plte = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_plte = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_plte.v_num_entries = v_num_entries; + self->private_data.s_decode_plte.v_i = v_i; goto exit; exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return status; } -// -------- func nie.decoder.swizzle +// -------- func png.decoder.decode_srgb WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_nie__decoder__swizzle( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, +wuffs_png__decoder__decode_srgb( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row = 0; - uint32_t v_src_bytes_per_pixel = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_i = 0; - uint64_t v_j = 0; - uint64_t v_n = 0; - const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -51604,66 +64720,39 @@ wuffs_nie__decoder__swizzle( io2_a_src = io0_a_src + a_src->meta.wi; } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - while (true) { - if (self->private_impl.f_dst_x == self->private_impl.f_width) { - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += 1u; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - break; - } - } - v_dst = wuffs_base__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); - } - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); - if (v_i >= ((uint64_t)(v_dst.len))) { - v_src_bytes_per_pixel = 4u; - if (self->private_impl.f_pixfmt == 2164308923u) { - v_src_bytes_per_pixel = 8u; - } - v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); - v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); - v_j = v_n; - while (v_j >= 8u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { - iop_a_src += (v_src_bytes_per_pixel * 8u); - } - v_j -= 8u; - } - while (v_j > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { - iop_a_src += (v_src_bytes_per_pixel * 1u); - } - v_j -= 1u; - } - } else { - v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( - &self->private_impl.f_swizzler, - wuffs_base__slice_u8__subslice_i(v_dst, v_i), - wuffs_base__pixel_buffer__palette(a_dst), - &iop_a_src, - io2_a_src); + uint32_t coro_susp_point = self->private_impl.p_decode_srgb; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_chunk_length != 1u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - if (v_n == 0u) { - status = wuffs_base__make_status(wuffs_nie__note__internal_note_short_read); - goto ok; + self->private_impl.f_chunk_length = 0u; + self->private_impl.f_metadata_flavor = 5u; + self->private_impl.f_metadata_fourcc = 1397901122u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t t_0 = *iop_a_src++; + self->private_impl.f_metadata_x = t_0; } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + + goto ok; + ok: + self->private_impl.p_decode_srgb = 0; + goto exit; } - status = wuffs_base__make_status(NULL); - goto ok; - ok: + goto suspend; + suspend: + self->private_impl.p_decode_srgb = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + goto exit; exit: if (a_src && a_src->data.ptr) { @@ -51673,131 +64762,199 @@ wuffs_nie__decoder__swizzle( return status; } -// -------- func nie.decoder.frame_dirty_rect - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_nie__decoder__frame_dirty_rect( - const wuffs_nie__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} - -// -------- func nie.decoder.num_animation_loops +// -------- func png.decoder.decode_trns WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_nie__decoder__num_animation_loops( - const wuffs_nie__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} +static wuffs_base__status +wuffs_png__decoder__decode_trns( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// -------- func nie.decoder.num_decoded_frame_configs + uint32_t v_i = 0; + uint32_t v_n = 0; + uint64_t v_u = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__num_decoded_frame_configs( - const wuffs_nie__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (self->private_impl.f_call_sequence > 32u) { - return 1u; + uint32_t coro_susp_point = self->private_impl.p_decode_trns; + if (coro_susp_point) { + v_i = self->private_data.s_decode_trns.v_i; + v_n = self->private_data.s_decode_trns.v_n; } - return 0u; -} - -// -------- func nie.decoder.num_decoded_frames + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__num_decoded_frames( - const wuffs_nie__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + if (self->private_impl.f_color_type == 0u) { + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + if (self->private_impl.f_depth <= 8u) { + self->private_impl.f_dst_pixfmt = 2164295816u; + self->private_impl.f_src_pixfmt = 2164295816u; + } else { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + } + if (self->private_impl.f_chunk_length != 2u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_0 = ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_trns.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_trns.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 8) { + t_0 = ((uint64_t)(*scratch >> 48)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + v_u = t_0; + } + if (self->private_impl.f_depth <= 1u) { + self->private_impl.f_remap_transparency = (((v_u & 1u) * 16777215u) | 4278190080u); + } else if (self->private_impl.f_depth <= 2u) { + self->private_impl.f_remap_transparency = (((v_u & 3u) * 5592405u) | 4278190080u); + } else if (self->private_impl.f_depth <= 4u) { + self->private_impl.f_remap_transparency = (((v_u & 15u) * 1118481u) | 4278190080u); + } else if (self->private_impl.f_depth <= 8u) { + self->private_impl.f_remap_transparency = (((v_u & 255u) * 65793u) | 4278190080u); + } else { + self->private_impl.f_remap_transparency = ((v_u * 4295032833u) | 18446462598732840960u); + } + } else if (self->private_impl.f_color_type == 2u) { + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + if (self->private_impl.f_depth <= 8u) { + self->private_impl.f_dst_pixfmt = 2164295816u; + self->private_impl.f_src_pixfmt = 2164295816u; + } else { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + } + if (self->private_impl.f_chunk_length != 6u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { + t_1 = ((uint64_t)(wuffs_base__peek_u48be__no_bounds_check(iop_a_src))); + iop_a_src += 6; + } else { + self->private_data.s_decode_trns.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_trns.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 40) { + t_1 = ((uint64_t)(*scratch >> 16)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); + } + } + v_u = t_1; + } + if (self->private_impl.f_depth <= 8u) { + self->private_impl.f_remap_transparency = ((255u & (v_u >> 0u)) | + (65280u & (v_u >> 8u)) | + (16711680u & (v_u >> 16u)) | + 4278190080u); + } else { + self->private_impl.f_remap_transparency = (v_u | 18446462598732840960u); + } + } else if (self->private_impl.f_color_type == 3u) { + self->private_impl.f_dst_pixfmt = 2164523016u; + self->private_impl.f_src_pixfmt = 2164523016u; + if (self->private_impl.f_chunk_length > 256u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + v_n = ((uint32_t)(self->private_impl.f_chunk_length)); + self->private_impl.f_chunk_length = 0u; + while (v_i < v_n) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + self->private_data.f_src_palette[((4u * v_i) + 3u)] = t_2; + } + v_i += 1u; + } + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } - if (self->private_impl.f_call_sequence > 64u) { - return 1u; + goto ok; + ok: + self->private_impl.p_decode_trns = 0; + goto exit; } - return 0u; -} - -// -------- func nie.decoder.restart_frame -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__restart_frame( - wuffs_nie__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + goto suspend; + suspend: + self->private_impl.p_decode_trns = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_trns.v_i = v_i; + self->private_data.s_decode_trns.v_n = v_n; - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if ((a_index != 0u) || (a_io_position != 16u)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - self->private_impl.f_call_sequence = 40u; - return wuffs_base__make_status(NULL); -} -// -------- func nie.decoder.set_report_metadata - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_nie__decoder__set_report_metadata( - wuffs_nie__decoder* self, - uint32_t a_fourcc, - bool a_report) { - return wuffs_base__make_empty_struct(); + return status; } -// -------- func nie.decoder.tell_me_more +// -------- func png.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__tell_me_more( - wuffs_nie__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, +wuffs_png__decoder__decode_frame_config( + wuffs_png__decoder* self, + wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); @@ -51808,354 +64965,485 @@ wuffs_nie__decoder__tell_me_more( ? wuffs_base__error__disabled_by_previous_error : wuffs_base__error__initialize_not_called); } - if (!a_dst || !a_src) { + if (!a_src) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { + (self->private_impl.active_coroutine != 2)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; - - goto ok; - ok: - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func nie.decoder.history_retain_length - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__history_retain_length( - const wuffs_nie__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func nie.decoder.workbuf_len - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_nie__decoder__workbuf_len( - const wuffs_nie__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } - - return wuffs_base__utility__make_range_ii_u64(0u, 0u); -} - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) - -// ---------------- Status Codes Implementations - -const char wuffs_zlib__note__dictionary_required[] = "@zlib: dictionary required"; -const char wuffs_zlib__error__bad_checksum[] = "#zlib: bad checksum"; -const char wuffs_zlib__error__bad_compression_method[] = "#zlib: bad compression method"; -const char wuffs_zlib__error__bad_compression_window_size[] = "#zlib: bad compression window size"; -const char wuffs_zlib__error__bad_parity_check[] = "#zlib: bad parity check"; -const char wuffs_zlib__error__incorrect_dictionary[] = "#zlib: incorrect dictionary"; -const char wuffs_zlib__error__truncated_input[] = "#zlib: truncated input"; - -// ---------------- Private Consts - -#define WUFFS_ZLIB__QUIRKS_BASE 2113790976 - -#define WUFFS_ZLIB__QUIRKS_COUNT 1 - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_zlib__decoder__do_transform_io( - wuffs_zlib__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); - -// ---------------- VTables - -const wuffs_base__io_transformer__func_ptrs -wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer = { - (uint64_t(*)(const void*, - uint32_t))(&wuffs_zlib__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_zlib__decoder__history_retain_length), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_zlib__decoder__set_quirk), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_zlib__decoder__transform_io), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_zlib__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_zlib__decoder__initialize( - wuffs_zlib__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } + wuffs_base__status v_status = wuffs_base__make_status(NULL); - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); - } - } + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - { - wuffs_base__status z = wuffs_adler32__hasher__initialize( - &self->private_data.f_checksum, sizeof(self->private_data.f_checksum), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } - { - wuffs_base__status z = wuffs_adler32__hasher__initialize( - &self->private_data.f_dict_id_hasher, sizeof(self->private_data.f_dict_id_hasher), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } - { - wuffs_base__status z = wuffs_deflate__decoder__initialize( - &self->private_data.f_flate, sizeof(self->private_data.f_flate), WUFFS_VERSION, options); - if (z.repr) { - return z; + while (true) { + { + wuffs_base__status t_0 = wuffs_png__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_png__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - } - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = - wuffs_base__io_transformer__vtable_name; - self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer); - return wuffs_base__make_status(NULL); -} - -wuffs_zlib__decoder* -wuffs_zlib__decoder__alloc(void) { - wuffs_zlib__decoder* x = - (wuffs_zlib__decoder*)(calloc(sizeof(wuffs_zlib__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_zlib__decoder__initialize( - x, sizeof(wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_zlib__decoder(void) { - return sizeof(wuffs_zlib__decoder); -} - -// ---------------- Function Implementations - -// -------- func zlib.decoder.dictionary_id - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_zlib__decoder__dictionary_id( - const wuffs_zlib__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return self->private_impl.f_dict_id_want; -} -// -------- func zlib.decoder.add_dictionary - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_zlib__decoder__add_dictionary( - wuffs_zlib__decoder* self, - wuffs_base__slice_u8 a_dict) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; } - if (self->private_impl.f_header_complete) { - self->private_impl.f_bad_call_sequence = true; - } else { - self->private_impl.f_dict_id_got = wuffs_adler32__hasher__update_u32(&self->private_data.f_dict_id_hasher, a_dict); - wuffs_deflate__decoder__add_history(&self->private_data.f_flate, a_dict); + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - self->private_impl.f_got_dictionary = true; - return wuffs_base__make_empty_struct(); + return status; } -// -------- func zlib.decoder.get_quirk +// -------- func png.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_zlib__decoder__get_quirk( - const wuffs_zlib__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; +static wuffs_base__status +wuffs_png__decoder__do_decode_frame_config( + wuffs_png__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_checksum_have = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t v_key = 0; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { - return 1u; - } else if (a_key >= 2113790976u) { - v_key = (a_key - 2113790976u); - if (v_key < 1u) { - if (self->private_impl.f_quirks[v_key]) { - return 1u; + if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_png__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_png__decoder__skip_frame(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (self->private_impl.f_metadata_fourcc != 0u) { + self->private_impl.f_call_sequence = 48u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; + } + if (self->private_impl.f_num_decoded_frame_configs_value == 0u) { + self->private_impl.f_frame_rect_x0 = self->private_impl.f_first_rect_x0; + self->private_impl.f_frame_rect_y0 = self->private_impl.f_first_rect_y0; + self->private_impl.f_frame_rect_x1 = self->private_impl.f_first_rect_x1; + self->private_impl.f_frame_rect_y1 = self->private_impl.f_first_rect_y1; + self->private_impl.f_frame_config_io_position = self->private_impl.f_first_config_io_position; + self->private_impl.f_frame_duration = self->private_impl.f_first_duration; + self->private_impl.f_frame_disposal = self->private_impl.f_first_disposal; + self->private_impl.f_frame_overwrite_instead_of_blend = self->private_impl.f_first_overwrite_instead_of_blend; + } else { + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_frame_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + self->private_impl.f_chunk_length = t_0; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_frame_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + self->private_impl.f_chunk_type = t_1; + } + if (self->private_impl.f_chunk_type == 1145980233u) { + if (self->private_impl.f_chunk_length != 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_frame_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + v_checksum_have = t_2; + } + if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != 2187346606u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); + goto exit; + } + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else if (self->private_impl.f_chunk_type == 1413571686u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } else if (self->private_impl.f_chunk_type == 1280598886u) { + self->private_impl.f_frame_config_io_position = ((uint64_t)(wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) - 8u)); + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_png__decoder__decode_fctl(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_data.s_do_decode_frame_config.scratch = 4u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (self->private_data.s_do_decode_frame_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame_config.scratch; + break; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + status = wuffs_png__decoder__decode_other_chunk(self, a_src, true); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_metadata_fourcc != 0u) { + self->private_impl.f_call_sequence = 48u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; + } + self->private_data.s_do_decode_frame_config.scratch = 4u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (self->private_data.s_do_decode_frame_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame_config.scratch; + self->private_impl.f_chunk_length = 0u; } } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + self->private_impl.f_frame_rect_x0, + self->private_impl.f_frame_rect_y0, + self->private_impl.f_frame_rect_x1, + self->private_impl.f_frame_rect_y1), + ((wuffs_base__flicks)(self->private_impl.f_frame_duration)), + ((uint64_t)(self->private_impl.f_num_decoded_frame_configs_value)), + self->private_impl.f_frame_config_io_position, + self->private_impl.f_frame_disposal, + ((self->private_impl.f_color_type <= 3u) && ! self->private_impl.f_seen_trns), + self->private_impl.f_frame_overwrite_instead_of_blend, + 0u); + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frame_configs_value, 1u); + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; } - return 0u; -} -// -------- func zlib.decoder.set_quirk + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_zlib__decoder__set_quirk( - wuffs_zlib__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (self->private_impl.f_header_complete) { - self->private_impl.f_bad_call_sequence = true; - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } else if (a_key == 1u) { - self->private_impl.f_ignore_checksum = (a_value > 0u); - return wuffs_base__make_status(NULL); - } else if (a_key >= 2113790976u) { - a_key -= 2113790976u; - if (a_key < 1u) { - self->private_impl.f_quirks[a_key] = (a_value > 0u); - return wuffs_base__make_status(NULL); - } - } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + return status; } -// -------- func zlib.decoder.history_retain_length +// -------- func png.decoder.skip_frame WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_zlib__decoder__history_retain_length( - const wuffs_zlib__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; +static wuffs_base__status +wuffs_png__decoder__skip_frame( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_seq_num = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - return 0u; -} + uint32_t coro_susp_point = self->private_impl.p_skip_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -// -------- func zlib.decoder.workbuf_len + self->private_impl.f_chunk_type_array[0u] = 0u; + self->private_impl.f_chunk_type_array[1u] = 0u; + self->private_impl.f_chunk_type_array[2u] = 0u; + self->private_impl.f_chunk_type_array[3u] = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); + if (self->private_impl.f_chunk_type == 1413563465u) { + if (self->private_impl.f_chunk_type_array[0u] == 102u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_type_array[0u] = 73u; + self->private_impl.f_chunk_type_array[1u] = 68u; + self->private_impl.f_chunk_type_array[2u] = 65u; + self->private_impl.f_chunk_type_array[3u] = 84u; + } else if (self->private_impl.f_chunk_type == 1413571686u) { + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_type_array[0u] = 102u; + self->private_impl.f_chunk_type_array[1u] = 100u; + self->private_impl.f_chunk_type_array[2u] = 65u; + self->private_impl.f_chunk_type_array[3u] = 84u; + if (self->private_impl.f_chunk_length < 4u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 4u; + iop_a_src += 8u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_skip_frame.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_skip_frame.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + v_seq_num = t_0; + } + if (v_seq_num != self->private_impl.f_next_animation_seq_num) { + status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); + goto exit; + } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + goto exit; + } + self->private_impl.f_next_animation_seq_num += 1u; + self->private_data.s_skip_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 4u); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (self->private_data.s_skip_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_skip_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_skip_frame.scratch; + self->private_impl.f_chunk_length = 0u; + continue; + } else if (self->private_impl.f_chunk_type_array[0u] != 0u) { + break; + } else if (self->private_impl.f_chunk_type == 1280598886u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_data.s_skip_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 12u); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (self->private_data.s_skip_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_skip_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_skip_frame.scratch; + self->private_impl.f_chunk_length = 0u; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + self->private_impl.f_call_sequence = 32u; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_zlib__decoder__workbuf_len( - const wuffs_zlib__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); + ok: + self->private_impl.p_skip_frame = 0; + goto exit; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + + goto suspend; + suspend: + self->private_impl.p_skip_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__utility__make_range_ii_u64(1u, 1u); + return status; } -// -------- func zlib.decoder.transform_io +// -------- func png.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_zlib__decoder__transform_io( - wuffs_zlib__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_png__decoder__decode_frame( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -52170,7 +65458,7 @@ wuffs_zlib__decoder__transform_io( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { + (self->private_impl.active_coroutine != 3)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -52179,71 +65467,312 @@ wuffs_zlib__decoder__transform_io( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_png__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_png__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func png.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_decode_frame( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_seq_num = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_pass_width = 0; + uint32_t v_pass_height = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if (self->private_impl.f_call_sequence >= 96u) { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else if (self->private_impl.f_call_sequence != 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_png__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } while (true) { - { - wuffs_base__status t_0 = wuffs_zlib__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); - v_status = t_0; + if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + continue; } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_zlib__error__truncated_input); + self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); + if (self->private_impl.f_chunk_type == 1413563465u) { + self->private_impl.f_chunk_type_array[0u] = 73u; + self->private_impl.f_chunk_type_array[1u] = 68u; + self->private_impl.f_chunk_type_array[2u] = 65u; + self->private_impl.f_chunk_type_array[3u] = 84u; + iop_a_src += 8u; + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); + } + break; + } else if (self->private_impl.f_chunk_type == 1413571686u) { + self->private_impl.f_chunk_type_array[0u] = 102u; + self->private_impl.f_chunk_type_array[1u] = 100u; + self->private_impl.f_chunk_type_array[2u] = 65u; + self->private_impl.f_chunk_type_array[3u] = 84u; + if (self->private_impl.f_chunk_length < 4u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 4u; + iop_a_src += 8u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_frame.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + v_seq_num = t_0; + } + if (v_seq_num != self->private_impl.f_next_animation_seq_num) { + status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); + goto exit; + } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + goto exit; + } + self->private_impl.f_next_animation_seq_num += 1u; + break; + } else if (self->private_impl.f_chunk_type == 1280598886u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); goto exit; } + self->private_data.s_do_decode_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 12u); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame.scratch; + self->private_impl.f_chunk_length = 0u; + } + if (self->private_impl.f_zlib_is_dirty) { + wuffs_private_impl__ignore_status(wuffs_zlib__decoder__initialize(&self->private_data.f_zlib, + sizeof (wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + if (self->private_impl.f_ignore_checksum) { + wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, 1u, 1u); + } + } + self->private_impl.f_zlib_is_dirty = true; + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), + wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), + wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + self->private_impl.f_workbuf_hist_pos_base = 0u; + while (true) { + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + v_pass_width = (16777215u & ((((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][1u])) + self->private_impl.f_width) >> WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u])); + v_pass_height = (16777215u & ((((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][4u])) + self->private_impl.f_height) >> WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][3u])); + } else { + v_pass_width = (16777215u & ((uint32_t)(self->private_impl.f_frame_rect_x1 - self->private_impl.f_frame_rect_x0))); + v_pass_height = (16777215u & ((uint32_t)(self->private_impl.f_frame_rect_y1 - self->private_impl.f_frame_rect_y0))); + } + if ((v_pass_width > 0u) && (v_pass_height > 0u)) { + self->private_impl.f_pass_bytes_per_row = wuffs_png__decoder__calculate_bytes_per_row(self, v_pass_width); + self->private_impl.f_pass_workbuf_length = (((uint64_t)(v_pass_height)) * (1u + self->private_impl.f_pass_bytes_per_row)); + while (true) { + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_1 = wuffs_png__decoder__decode_pass(self, a_src, a_workbuf); + v_status = t_1; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (wuffs_base__status__is_error(&v_status) || ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed))) { + if (self->private_impl.f_workbuf_wi <= ((uint64_t)(a_workbuf.len))) { + wuffs_png__decoder__filter_and_swizzle(self, a_dst, wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_workbuf_wi)); + } + if (v_status.repr == wuffs_base__suspension__short_read) { + status = wuffs_base__make_status(wuffs_png__error__truncated_input); + goto exit; + } + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + } + v_status = wuffs_png__decoder__filter_and_swizzle(self, a_dst, a_workbuf); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + self->private_impl.f_workbuf_hist_pos_base += self->private_impl.f_pass_workbuf_length; + } + if ((self->private_impl.f_interlace_pass == 0u) || (self->private_impl.f_interlace_pass >= 7u)) { + break; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_interlace_pass += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + self->private_impl.f_call_sequence = 32u; ok: - self->private_impl.p_transform_io[0] = 0; + self->private_impl.p_do_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func zlib.decoder.do_transform_io +// -------- func png.decoder.decode_pass WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_zlib__decoder__do_transform_io( - wuffs_zlib__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_png__decoder__decode_pass( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint16_t v_x = 0; - uint32_t v_checksum_got = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); + wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_w = &u_w; + uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint64_t v_w_mark = 0; + uint64_t v_r_mark = 0; + wuffs_base__status v_zlib_status = wuffs_base__make_status(NULL); + uint32_t v_checksum_have = 0; uint32_t v_checksum_want = 0; - uint64_t v_mark = 0; + uint32_t v_seq_num = 0; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -52255,77 +65784,93 @@ wuffs_zlib__decoder__do_transform_io( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_transform_io[0]; - if (coro_susp_point) { - v_checksum_got = self->private_data.s_do_transform_io[0].v_checksum_got; - } + uint32_t coro_susp_point = self->private_impl.p_decode_pass; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_bad_call_sequence) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if (self->private_impl.f_quirks[0u]) { - } else if ( ! self->private_impl.f_want_dictionary) { + self->private_impl.f_workbuf_wi = 0u; + while (true) { + if ((self->private_impl.f_workbuf_wi > self->private_impl.f_pass_workbuf_length) || (self->private_impl.f_pass_workbuf_length > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint16_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_0 = wuffs_base__peek_u16be__no_bounds_check(iop_a_src); - iop_a_src += 2; - } else { - self->private_data.s_do_transform_io[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + wuffs_base__io_buffer* o_0_v_w = v_w; + uint8_t* o_0_iop_v_w = iop_v_w; + uint8_t* o_0_io0_v_w = io0_v_w; + uint8_t* o_0_io1_v_w = io1_v_w; + uint8_t* o_0_io2_v_w = io2_v_w; + v_w = wuffs_private_impl__io_writer__set( + &u_w, + &iop_v_w, + &io0_v_w, + &io1_v_w, + &io2_v_w, + wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_workbuf_wi, + self->private_impl.f_pass_workbuf_length), + ((uint64_t)(self->private_impl.f_workbuf_hist_pos_base + self->private_impl.f_workbuf_wi))); + { + const bool o_1_closed_a_src = a_src->meta.closed; + const uint8_t* o_1_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_w_mark = ((uint64_t)(iop_v_w - io0_v_w)); + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + u_w.meta.wi = ((size_t)(iop_v_w - u_w.data.ptr)); + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - uint64_t* scratch = &self->private_data.s_do_transform_io[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 8) { - t_0 = ((uint16_t)(*scratch >> 48)); - break; + wuffs_base__status t_0 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, v_w, a_src, wuffs_base__utility__empty_slice_u8()); + v_zlib_status = t_0; + iop_v_w = u_w.data.ptr + u_w.meta.wi; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); + } + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_workbuf_wi, wuffs_private_impl__io__count_since(v_w_mark, ((uint64_t)(iop_v_w - io0_v_w)))); + io2_a_src = o_1_io2_a_src; + if (a_src) { + a_src->meta.closed = o_1_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); } } - v_x = t_0; - } - if (((v_x >> 8u) & 15u) != 8u) { - status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_method); - goto exit; - } - if ((v_x >> 12u) > 7u) { - status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_window_size); - goto exit; - } - if ((v_x % 31u) != 0u) { - status = wuffs_base__make_status(wuffs_zlib__error__bad_parity_check); - goto exit; + v_w = o_0_v_w; + iop_v_w = o_0_iop_v_w; + io0_v_w = o_0_io0_v_w; + io1_v_w = o_0_io1_v_w; + io2_v_w = o_0_io2_v_w; } - self->private_impl.f_want_dictionary = ((v_x & 32u) != 0u); - if (self->private_impl.f_want_dictionary) { - self->private_impl.f_dict_id_got = 1u; + if (wuffs_base__status__is_ok(&v_zlib_status)) { + if (self->private_impl.f_chunk_length > 0u) { + status = wuffs_base__make_status(wuffs_base__error__too_much_data); + goto exit; + } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); uint32_t t_1; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_transform_io[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_transform_io[0].scratch; + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; *scratch <<= 8; @@ -52338,101 +65883,208 @@ wuffs_zlib__decoder__do_transform_io( *scratch |= ((uint64_t)(num_bits_1)); } } - self->private_impl.f_dict_id_want = t_1; + v_checksum_want = t_1; } - status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); - goto ok; - } else if (self->private_impl.f_got_dictionary) { - status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); - goto exit; - } - } else if (self->private_impl.f_dict_id_got != self->private_impl.f_dict_id_want) { - if (self->private_impl.f_got_dictionary) { - status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); + if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_chunk_type_array[0u] == 73u)) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__utility__empty_slice_u8()); + if (v_checksum_have != v_checksum_want) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); + goto exit; + } + } + break; + } else if (v_zlib_status.repr == wuffs_base__suspension__short_write) { + if ((1u <= self->private_impl.f_interlace_pass) && (self->private_impl.f_interlace_pass <= 6u)) { + break; + } + status = wuffs_base__make_status(wuffs_base__error__too_much_data); goto exit; - } - status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); - goto ok; - } - self->private_impl.f_header_complete = true; - while (true) { - v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); - { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } else if (v_zlib_status.repr != wuffs_base__suspension__short_read) { + status = v_zlib_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + goto ok; + } else if (self->private_impl.f_chunk_length == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } + } + v_checksum_want = t_2; } - wuffs_base__status t_2 = wuffs_deflate__decoder__transform_io(&self->private_data.f_flate, a_dst, a_src, a_workbuf); - v_status = t_2; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_chunk_type_array[0u] == 73u)) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__utility__empty_slice_u8()); + if (v_checksum_have != v_checksum_want) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); + goto exit; + } } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + self->private_impl.f_chunk_length = t_3; } - } - if ( ! self->private_impl.f_ignore_checksum && ! self->private_impl.f_quirks[0u]) { - v_checksum_got = wuffs_adler32__hasher__update_u32(&self->private_data.f_checksum, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); - } - if (wuffs_base__status__is_ok(&v_status)) { - break; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - } - if ( ! self->private_impl.f_quirks[0u]) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_transform_io[0].scratch = 0; + { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_4 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 24) { + t_4 = ((uint32_t)(*scratch)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)) << 56; } - uint64_t* scratch = &self->private_data.s_do_transform_io[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch >> 32)); - break; + } + self->private_impl.f_chunk_type = t_4; + } + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + if (self->private_impl.f_chunk_type != 1413563465u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); + } + } else { + if ((self->private_impl.f_chunk_type != 1413571686u) || (self->private_impl.f_chunk_length < 4u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 4u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_5 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 24) { + t_5 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); + v_seq_num = t_5; + } + if (v_seq_num != self->private_impl.f_next_animation_seq_num) { + status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); + goto exit; + } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + goto exit; } + self->private_impl.f_next_animation_seq_num += 1u; } - v_checksum_want = t_3; - } - if ( ! self->private_impl.f_ignore_checksum && (v_checksum_got != v_checksum_want)) { - status = wuffs_base__make_status(wuffs_zlib__error__bad_checksum); + continue; + } else if (((uint64_t)(io2_a_src - iop_a_src)) > 0u) { + status = wuffs_base__make_status(wuffs_png__error__internal_error_zlib_decoder_did_not_exhaust_its_input); goto exit; } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + } + if (self->private_impl.f_workbuf_wi != self->private_impl.f_pass_workbuf_length) { + status = wuffs_base__make_status(wuffs_base__error__not_enough_data); + goto exit; + } else if (0u < ((uint64_t)(a_workbuf.len))) { + if (a_workbuf.ptr[0u] == 4u) { + a_workbuf.ptr[0u] = 1u; + } } ok: - self->private_impl.p_do_transform_io[0] = 0; + self->private_impl.p_decode_pass = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_transform_io[0].v_checksum_got = v_checksum_got; + self->private_impl.p_decode_pass = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -52440,2021 +66092,1710 @@ wuffs_zlib__decoder__do_transform_io( return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) - -// ---------------- Status Codes Implementations - -const char wuffs_png__error__bad_animation_sequence_number[] = "#png: bad animation sequence number"; -const char wuffs_png__error__bad_checksum[] = "#png: bad checksum"; -const char wuffs_png__error__bad_chunk[] = "#png: bad chunk"; -const char wuffs_png__error__bad_filter[] = "#png: bad filter"; -const char wuffs_png__error__bad_header[] = "#png: bad header"; -const char wuffs_png__error__bad_text_chunk_not_latin_1[] = "#png: bad text chunk (not Latin-1)"; -const char wuffs_png__error__missing_palette[] = "#png: missing palette"; -const char wuffs_png__error__truncated_input[] = "#png: truncated input"; -const char wuffs_png__error__unsupported_cgbi_extension[] = "#png: unsupported CgBI extension"; -const char wuffs_png__error__unsupported_png_compression_method[] = "#png: unsupported PNG compression method"; -const char wuffs_png__error__unsupported_png_file[] = "#png: unsupported PNG file"; -const char wuffs_png__error__internal_error_inconsistent_i_o[] = "#png: internal error: inconsistent I/O"; -const char wuffs_png__error__internal_error_inconsistent_chunk_type[] = "#png: internal error: inconsistent chunk type"; -const char wuffs_png__error__internal_error_inconsistent_frame_bounds[] = "#png: internal error: inconsistent frame bounds"; -const char wuffs_png__error__internal_error_inconsistent_workbuf_length[] = "#png: internal error: inconsistent workbuf length"; -const char wuffs_png__error__internal_error_zlib_decoder_did_not_exhaust_its_input[] = "#png: internal error: zlib decoder did not exhaust its input"; - -// ---------------- Private Consts - -#define WUFFS_PNG__ANCILLARY_BIT 32 - -static const uint8_t -WUFFS_PNG__INTERLACING[8][6] WUFFS_BASE__POTENTIALLY_UNUSED = { - { - 0, 0, 0, 0, 0, 0, - }, { - 3, 7, 0, 3, 7, 0, - }, { - 3, 3, 4, 3, 7, 0, - }, { - 2, 3, 0, 3, 3, 4, - }, { - 2, 1, 2, 2, 3, 0, - }, { - 1, 1, 0, 2, 1, 2, - }, { - 1, 0, 1, 1, 1, 0, - }, { - 0, 0, 0, 1, 0, 1, - }, -}; - -static const uint8_t -WUFFS_PNG__LOW_BIT_DEPTH_MULTIPLIERS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 255, 85, 0, 17, 0, 0, 0, -}; - -static const uint8_t -WUFFS_PNG__LOW_BIT_DEPTH_NUM_PACKS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 8, 4, 0, 2, 0, 0, 0, -}; - -static const uint8_t -WUFFS_PNG__NUM_CHANNELS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1, 0, 3, 1, 2, 0, 4, 0, -}; - -static const uint16_t -WUFFS_PNG__LATIN_1[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 32, 33, 34, 35, 36, 37, 38, 39, - 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, - 56, 57, 58, 59, 60, 61, 62, 63, - 64, 65, 66, 67, 68, 69, 70, 71, - 72, 73, 74, 75, 76, 77, 78, 79, - 80, 81, 82, 83, 84, 85, 86, 87, - 88, 89, 90, 91, 92, 93, 94, 95, - 96, 97, 98, 99, 100, 101, 102, 103, - 104, 105, 106, 107, 108, 109, 110, 111, - 112, 113, 114, 115, 116, 117, 118, 119, - 120, 121, 122, 123, 124, 125, 126, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 41410, 41666, 41922, 42178, 42434, 42690, 42946, - 43202, 43458, 43714, 43970, 44226, 44482, 44738, 44994, - 45250, 45506, 45762, 46018, 46274, 46530, 46786, 47042, - 47298, 47554, 47810, 48066, 48322, 48578, 48834, 49090, - 32963, 33219, 33475, 33731, 33987, 34243, 34499, 34755, - 35011, 35267, 35523, 35779, 36035, 36291, 36547, 36803, - 37059, 37315, 37571, 37827, 38083, 38339, 38595, 38851, - 39107, 39363, 39619, 39875, 40131, 40387, 40643, 40899, - 41155, 41411, 41667, 41923, 42179, 42435, 42691, 42947, - 43203, 43459, 43715, 43971, 44227, 44483, 44739, 44995, - 45251, 45507, 45763, 46019, 46275, 46531, 46787, 47043, - 47299, 47555, 47811, 48067, 48323, 48579, 48835, 49091, -}; - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_2( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); - -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__do_decode_image_config( - wuffs_png__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_ihdr( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__assign_filter_distance( - wuffs_png__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -static uint64_t -wuffs_png__decoder__calculate_bytes_per_row( - const wuffs_png__decoder* self, - uint32_t a_width); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__choose_filter_implementations( - wuffs_png__decoder* self); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_other_chunk( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src, - bool a_framy); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_actl( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +// -------- func png.decoder.frame_dirty_rect WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_chrm( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_png__decoder__frame_dirty_rect( + const wuffs_png__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_exif( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); + return wuffs_base__utility__make_rect_ie_u32( + self->private_impl.f_frame_rect_x0, + self->private_impl.f_frame_rect_y0, + self->private_impl.f_frame_rect_x1, + self->private_impl.f_frame_rect_y1); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_fctl( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +// -------- func png.decoder.num_animation_loops WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_gama( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_png__decoder__num_animation_loops( + const wuffs_png__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_iccp( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); + return self->private_impl.f_num_animation_loops_value; +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_plte( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +// -------- func png.decoder.num_decoded_frame_configs WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_srgb( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_png__decoder__num_decoded_frame_configs( + const wuffs_png__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_trns( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); + return ((uint64_t)(self->private_impl.f_num_decoded_frame_configs_value)); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__do_decode_frame_config( - wuffs_png__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); +// -------- func png.decoder.num_decoded_frames WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__skip_frame( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_png__decoder__num_decoded_frames( + const wuffs_png__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__do_decode_frame( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); + return ((uint64_t)(self->private_impl.f_num_decoded_frames_value)); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_pass( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); +// -------- func png.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__do_tell_me_more( +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_png__decoder__restart_frame( wuffs_png__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src); + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } else if ((a_index >= ((uint64_t)(self->private_impl.f_num_animation_frames_value))) || ((a_index == 0u) && (a_io_position != self->private_impl.f_first_config_io_position))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + if (self->private_impl.f_interlace_pass >= 1u) { + self->private_impl.f_interlace_pass = 1u; + } + self->private_impl.f_frame_config_io_position = a_io_position; + self->private_impl.f_num_decoded_frame_configs_value = ((uint32_t)(a_index)); + self->private_impl.f_num_decoded_frames_value = self->private_impl.f_num_decoded_frame_configs_value; + return wuffs_base__make_status(NULL); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle__choosy_default( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); +// -------- func png.decoder.set_report_metadata WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle_tricky( +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_png__decoder__set_report_metadata( wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); - -// ---------------- VTables + uint32_t a_fourcc, + bool a_report) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } -const wuffs_base__image_decoder__func_ptrs -wuffs_png__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_png__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_png__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_png__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_png__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_png__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_png__decoder__history_retain_length), - (uint32_t(*)(const void*))(&wuffs_png__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_png__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_png__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_png__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_png__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_png__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_png__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_png__decoder__workbuf_len), -}; + if (a_fourcc == 1128813133u) { + self->private_impl.f_report_metadata_chrm = a_report; + } else if (a_fourcc == 1163413830u) { + self->private_impl.f_report_metadata_exif = a_report; + } else if (a_fourcc == 1195461953u) { + self->private_impl.f_report_metadata_gama = a_report; + } else if (a_fourcc == 1229144912u) { + self->private_impl.f_report_metadata_iccp = a_report; + } else if (a_fourcc == 1263947808u) { + self->private_impl.f_report_metadata_kvp = a_report; + } else if (a_fourcc == 1397901122u) { + self->private_impl.f_report_metadata_srgb = a_report; + } + return wuffs_base__make_empty_struct(); +} -// ---------------- Initializer Implementations +// -------- func png.decoder.tell_me_more -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_png__decoder__initialize( +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_png__decoder__tell_me_more( wuffs_png__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); } - - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); - } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - self->private_impl.choosy_filter_1 = &wuffs_png__decoder__filter_1__choosy_default; - self->private_impl.choosy_filter_3 = &wuffs_png__decoder__filter_3__choosy_default; - self->private_impl.choosy_filter_4 = &wuffs_png__decoder__filter_4__choosy_default; - self->private_impl.choosy_filter_and_swizzle = &wuffs_png__decoder__filter_and_swizzle__choosy_default; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - { - wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( - &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } - { - wuffs_base__status z = wuffs_zlib__decoder__initialize( - &self->private_data.f_zlib, sizeof(self->private_data.f_zlib), WUFFS_VERSION, options); - if (z.repr) { - return z; + uint32_t coro_susp_point = self->private_impl.p_tell_me_more; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_png__decoder__do_tell_me_more(self, a_dst, a_minfo, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_png__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - } - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_png__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); -} -wuffs_png__decoder* -wuffs_png__decoder__alloc(void) { - wuffs_png__decoder* x = - (wuffs_png__decoder*)(calloc(sizeof(wuffs_png__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_png__decoder__initialize( - x, sizeof(wuffs_png__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + ok: + self->private_impl.p_tell_me_more = 0; + goto exit; } - return x; -} -size_t -sizeof__wuffs_png__decoder(void) { - return sizeof(wuffs_png__decoder); -} + goto suspend; + suspend: + self->private_impl.p_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; -// ---------------- Function Implementations + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func png.decoder.filter_1_distance_4_arm_neon +// -------- func png.decoder.do_tell_me_more -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_arm_neon( +static wuffs_base__status +wuffs_png__decoder__do_tell_me_more( wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - wuffs_base__slice_u8 v_curr = {0}; - uint8x8_t v_fa = {0}; - uint8x8_t v_fx = {0}; + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, v_fa); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, v_fa); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - } - v_curr.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, v_fa); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; + uint8_t v_c8 = 0; + uint16_t v_c16 = 0; + wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_w = &u_w; + uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint64_t v_num_written = 0; + uint64_t v_w_mark = 0; + uint64_t v_r_mark = 0; + wuffs_base__status v_zlib_status = wuffs_base__make_status(NULL); + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; } - v_curr.len = 0; } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon - -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func png.decoder.filter_3_distance_4_arm_neon + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8x8_t v_fa = {0}; - uint8x8_t v_fb = {0}; - uint8x8_t v_fx = {0}; + uint32_t coro_susp_point = self->private_impl.p_do_tell_me_more; + if (coro_susp_point) { + v_zlib_status = self->private_data.s_do_tell_me_more.v_zlib_status; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (((uint64_t)(a_prev.len)) == 0u) { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; + if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) == 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + if (self->private_impl.f_metadata_fourcc == 0u) { + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + } + do { + if (self->private_impl.f_metadata_flavor == 3u) { + while (true) { + if (wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) != self->private_impl.f_metadata_y) { + status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); + goto exit; + } else if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + self->private_impl.f_metadata_flavor, + self->private_impl.f_metadata_fourcc, + self->private_impl.f_metadata_x, + self->private_impl.f_metadata_y, + self->private_impl.f_metadata_z); + } + if (self->private_impl.f_metadata_y >= self->private_impl.f_metadata_z) { + goto label__goto_done__break; + } + self->private_impl.f_metadata_y = self->private_impl.f_metadata_z; + status = wuffs_base__make_status(wuffs_base__suspension__even_more_information); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + } + if (self->private_impl.f_metadata_is_zlib_compressed) { + if (self->private_impl.f_zlib_is_dirty) { + wuffs_private_impl__ignore_status(wuffs_zlib__decoder__initialize(&self->private_data.f_zlib, + sizeof (wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + if (self->private_impl.f_ignore_checksum) { + wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, 1u, 1u); + } + } + self->private_impl.f_zlib_is_dirty = true; + self->private_impl.f_ztxt_hist_pos = 0u; + } + label__loop__continue:; + while (true) { + if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + self->private_impl.f_metadata_flavor, + self->private_impl.f_metadata_fourcc, + self->private_impl.f_metadata_x, + self->private_impl.f_metadata_y, + self->private_impl.f_metadata_z); + } + if (self->private_impl.f_metadata_flavor != 4u) { + break; + } + if (self->private_impl.f_metadata_is_zlib_compressed) { + if (self->private_impl.f_chunk_type == 1346585449u) { + { + const bool o_0_closed_a_src = a_src->meta.closed; + const uint8_t* o_0_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_0 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); + v_zlib_status = t_0; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + io2_a_src = o_0_io2_a_src; + if (a_src) { + a_src->meta.closed = o_0_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } + } + if (wuffs_base__status__is_ok(&v_zlib_status)) { + self->private_impl.f_metadata_is_zlib_compressed = false; + break; + } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { + status = v_zlib_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = v_zlib_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } else if (self->private_impl.f_chunk_type == 1951945833u) { + { + const bool o_1_closed_a_src = a_src->meta.closed; + const uint8_t* o_1_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_1 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); + v_zlib_status = t_1; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + io2_a_src = o_1_io2_a_src; + if (a_src) { + a_src->meta.closed = o_1_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } + } + if (wuffs_base__status__is_ok(&v_zlib_status)) { + self->private_impl.f_metadata_is_zlib_compressed = false; + break; + } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { + status = v_zlib_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = v_zlib_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + } else if (self->private_impl.f_chunk_type == 1951945850u) { + if (self->private_impl.f_ztxt_ri == self->private_impl.f_ztxt_wi) { + { + wuffs_base__io_buffer* o_2_v_w = v_w; + uint8_t* o_2_iop_v_w = iop_v_w; + uint8_t* o_2_io0_v_w = io0_v_w; + uint8_t* o_2_io1_v_w = io1_v_w; + uint8_t* o_2_io2_v_w = io2_v_w; + v_w = wuffs_private_impl__io_writer__set( + &u_w, + &iop_v_w, + &io0_v_w, + &io1_v_w, + &io2_v_w, + wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024), + self->private_impl.f_ztxt_hist_pos); + { + const bool o_3_closed_a_src = a_src->meta.closed; + const uint8_t* o_3_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_w_mark = ((uint64_t)(iop_v_w - io0_v_w)); + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + u_w.meta.wi = ((size_t)(iop_v_w - u_w.data.ptr)); + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, v_w, a_src, wuffs_base__utility__empty_slice_u8()); + v_zlib_status = t_2; + iop_v_w = u_w.data.ptr + u_w.meta.wi; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + v_num_written = wuffs_private_impl__io__count_since(v_w_mark, ((uint64_t)(iop_v_w - io0_v_w))); + io2_a_src = o_3_io2_a_src; + if (a_src) { + a_src->meta.closed = o_3_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } + } + v_w = o_2_v_w; + iop_v_w = o_2_iop_v_w; + io0_v_w = o_2_io0_v_w; + io1_v_w = o_2_io1_v_w; + io2_v_w = o_2_io2_v_w; + } + if (v_num_written > 1024u) { + status = wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_i_o); + goto exit; + } + self->private_impl.f_ztxt_ri = 0u; + self->private_impl.f_ztxt_wi = ((uint32_t)(v_num_written)); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_ztxt_hist_pos, v_num_written); + } + while (self->private_impl.f_ztxt_ri < self->private_impl.f_ztxt_wi) { + v_c16 = WUFFS_PNG__LATIN_1[self->private_data.f_dst_palette[self->private_impl.f_ztxt_ri]]; + if (v_c16 == 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_text_chunk_not_latin_1); + goto exit; + } else if (v_c16 <= 127u) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + goto label__loop__continue; + } + self->private_impl.f_ztxt_ri += 1u; + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)(v_c16))), iop_a_dst += 1); + } else { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + goto label__loop__continue; + } + self->private_impl.f_ztxt_ri += 1u; + (wuffs_base__poke_u16le__no_bounds_check(iop_a_dst, v_c16), iop_a_dst += 2); + } + } + if (wuffs_base__status__is_ok(&v_zlib_status)) { + self->private_impl.f_metadata_is_zlib_compressed = false; + break; + } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { + status = v_zlib_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } else if (v_zlib_status.repr != wuffs_base__suspension__short_write) { + status = v_zlib_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + } + } else { + status = wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_chunk_type); + goto exit; + } + } else if ((self->private_impl.f_chunk_type == 1951945833u) && (self->private_impl.f_metadata_fourcc == 1263947862u)) { + while (true) { + if (self->private_impl.f_chunk_length <= 0u) { + goto label__loop__break; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + goto label__loop__continue; + } else if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + goto label__loop__continue; + } + self->private_impl.f_chunk_length -= 1u; + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_c8), iop_a_dst += 1); + } + } else { + while (true) { + if (self->private_impl.f_chunk_length <= 0u) { + if (self->private_impl.f_metadata_fourcc == 1263947851u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + goto label__loop__break; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + goto label__loop__continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 == 0u) { + self->private_impl.f_chunk_length -= 1u; + iop_a_src += 1u; + goto label__loop__break; + } + v_c16 = WUFFS_PNG__LATIN_1[v_c8]; + if (v_c16 == 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_text_chunk_not_latin_1); + goto exit; + } else if (v_c16 <= 127u) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + goto label__loop__continue; + } + self->private_impl.f_chunk_length -= 1u; + iop_a_src += 1u; + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)(v_c16))), iop_a_dst += 1); + } else { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + goto label__loop__continue; + } + self->private_impl.f_chunk_length -= 1u; + iop_a_src += 1u; + (wuffs_base__poke_u16le__no_bounds_check(iop_a_dst, v_c16), iop_a_dst += 2); + } + } + } } - v_curr.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; + label__loop__break:; + if (self->private_impl.f_metadata_fourcc == 1263947851u) { + self->private_impl.f_metadata_fourcc = 1263947862u; + if (self->private_impl.f_chunk_type == 1951945833u) { + if (self->private_impl.f_chunk_length <= 1u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 2u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if (v_c8 == 0u) { + self->private_impl.f_metadata_is_zlib_compressed = false; + } else if (v_c8 == 1u) { + self->private_impl.f_metadata_is_zlib_compressed = true; + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if ((v_c8 != 0u) && self->private_impl.f_metadata_is_zlib_compressed) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); + goto exit; + } + self->private_impl.f_metadata_fourcc -= 2u; + while (self->private_impl.f_metadata_fourcc != 1263947862u) { + self->private_impl.f_metadata_fourcc += 1u; + while (true) { + if (self->private_impl.f_chunk_length <= 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + if (v_c8 == 0u) { + break; + } + } + } + } else if (self->private_impl.f_chunk_type == 1951945850u) { + if (self->private_impl.f_chunk_length <= 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); + goto exit; + } + self->private_impl.f_metadata_is_zlib_compressed = true; + } + self->private_impl.f_call_sequence &= 239u; + status = wuffs_base__make_status(NULL); + goto ok; } - v_curr.len = 0; + } while (0); + label__goto_done__break:; + if (self->private_impl.f_chunk_length != 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - } else { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 0; - v_prev.len = 0; + self->private_data.s_do_tell_me_more.scratch = 4u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (self->private_data.s_do_tell_me_more.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_tell_me_more.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon - -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func png.decoder.filter_4_distance_3_arm_neon - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8x8_t v_fa = {0}; - uint8x8_t v_fb = {0}; - uint8x8_t v_fc = {0}; - uint8x8_t v_fx = {0}; - uint16x8_t v_fafb = {0}; - uint16x8_t v_fcfc = {0}; - uint16x8_t v_pa = {0}; - uint16x8_t v_pb = {0}; - uint16x8_t v_pc = {0}; - uint16x8_t v_cmpab = {0}; - uint16x8_t v_cmpac = {0}; - uint8x8_t v_picka = {0}; - uint8x8_t v_pickb = {0}; + iop_a_src += self->private_data.s_do_tell_me_more.scratch; + self->private_impl.f_metadata_flavor = 0u; + self->private_impl.f_metadata_fourcc = 0u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + self->private_impl.f_call_sequence &= 239u; + status = wuffs_base__make_status(NULL); + goto ok; - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + wuffs_base__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 7, 6); - while (v_curr.ptr < i_end0_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 3; - v_prev.ptr += 3; - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + wuffs_base__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 4, 3); - while (v_curr.ptr < i_end1_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end2_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end2_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u24le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u24le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 0; - v_prev.len = 0; + ok: + self->private_impl.p_do_tell_me_more = 0; + goto exit; } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func png.decoder.filter_4_distance_4_arm_neon - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8x8_t v_fa = {0}; - uint8x8_t v_fb = {0}; - uint8x8_t v_fc = {0}; - uint8x8_t v_fx = {0}; - uint16x8_t v_fafb = {0}; - uint16x8_t v_fcfc = {0}; - uint16x8_t v_pa = {0}; - uint16x8_t v_pb = {0}; - uint16x8_t v_pc = {0}; - uint16x8_t v_cmpab = {0}; - uint16x8_t v_cmpac = {0}; - uint8x8_t v_picka = {0}; - uint8x8_t v_pickb = {0}; + goto suspend; + suspend: + self->private_impl.p_do_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_tell_me_more.v_zlib_status = v_zlib_status; - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 0; - v_prev.len = 0; + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon - -// -------- func png.decoder.filter_1 - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - return (*self->private_impl.choosy_filter_1)(self, a_curr); -} - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - uint64_t v_filter_distance = 0; - uint8_t v_fa = 0; - uint64_t v_i_start = 0; - uint64_t v_i = 0; - - v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); - v_i_start = 0u; - while (v_i_start < v_filter_distance) { - v_fa = 0u; - v_i = v_i_start; - while (v_i < ((uint64_t)(a_curr.len))) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + v_fa)); - v_fa = a_curr.ptr[v_i]; - v_i += v_filter_distance; - } - v_i_start += 1u; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_empty_struct(); -} - -// -------- func png.decoder.filter_1_distance_3_fallback - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - wuffs_base__slice_u8 v_curr = {0}; - uint8_t v_fa0 = 0; - uint8_t v_fa1 = 0; - uint8_t v_fa2 = 0; - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 3; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - } - v_curr.len = 3; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end1_curr) { - v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - } - v_curr.len = 0; - } - return wuffs_base__make_empty_struct(); + return status; } -// -------- func png.decoder.filter_1_distance_4_fallback +// -------- func png.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - wuffs_base__slice_u8 v_curr = {0}; - uint8_t v_fa0 = 0; - uint8_t v_fa1 = 0; - uint8_t v_fa2 = 0; - uint8_t v_fa3 = 0; - - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_fa3 = ((uint8_t)(v_fa3 + v_curr.ptr[3u])); - v_curr.ptr[3u] = v_fa3; - v_curr.ptr += 4; - } - v_curr.len = 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_png__decoder__workbuf_len( + const wuffs_png__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); } - return wuffs_base__make_empty_struct(); -} - -// -------- func png.decoder.filter_2 - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_2( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - uint64_t v_n = 0; - uint64_t v_i = 0; - - v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); - v_i = 0u; - while (v_i < v_n) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + a_prev.ptr[v_i])); - v_i += 1u; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); } - return wuffs_base__make_empty_struct(); + + return wuffs_base__utility__make_range_ii_u64(self->private_impl.f_overall_workbuf_length, self->private_impl.f_overall_workbuf_length); } -// -------- func png.decoder.filter_3 +// -------- func png.decoder.filter_and_swizzle WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3( +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle( wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - return (*self->private_impl.choosy_filter_3)(self, a_curr, a_prev); + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf) { + return (*self->private_impl.choosy_filter_and_swizzle)(self, a_dst, a_workbuf); } WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3__choosy_default( +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle__choosy_default( wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - uint64_t v_filter_distance = 0; - uint64_t v_n = 0; - uint64_t v_i = 0; + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint64_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row0 = 0; + uint64_t v_dst_bytes_per_row1 = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + uint32_t v_y = 0; + wuffs_base__slice_u8 v_dst = {0}; + uint8_t v_filter = 0; + wuffs_base__slice_u8 v_curr_row = {0}; + wuffs_base__slice_u8 v_prev_row = {0}; - v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); - if (((uint64_t)(a_prev.len)) == 0u) { - v_i = v_filter_distance; - while (v_i < ((uint64_t)(a_curr.len))) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + (a_curr.ptr[(v_i - v_filter_distance)] / 2u))); - v_i += 1u; - } + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); + v_dst_bytes_per_row0 = (((uint64_t)(self->private_impl.f_frame_rect_x0)) * v_dst_bytes_per_pixel); + v_dst_bytes_per_row1 = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * v_dst_bytes_per_pixel); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + if (v_dst_bytes_per_row1 < ((uint64_t)(v_tab.width))) { + v_tab = wuffs_base__table_u8__subtable_ij(v_tab, + 0u, + 0u, + v_dst_bytes_per_row1, + ((uint64_t)(v_tab.height))); + } + if (v_dst_bytes_per_row0 < ((uint64_t)(v_tab.width))) { + v_tab = wuffs_base__table_u8__subtable_ij(v_tab, + v_dst_bytes_per_row0, + 0u, + ((uint64_t)(v_tab.width)), + ((uint64_t)(v_tab.height))); } else { - v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); - v_i = 0u; - while ((v_i < v_n) && (v_i < v_filter_distance)) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + (a_prev.ptr[v_i] / 2u))); - v_i += 1u; + v_tab = wuffs_base__table_u8__subtable_ij(v_tab, + 0u, + 0u, + 0u, + 0u); + } + v_y = self->private_impl.f_frame_rect_y0; + while (v_y < self->private_impl.f_frame_rect_y1) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (1u > ((uint64_t)(a_workbuf.len))) { + return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); } - v_i = v_filter_distance; - while (v_i < v_n) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(((((uint32_t)(a_curr.ptr[(v_i - v_filter_distance)])) + ((uint32_t)(a_prev.ptr[v_i]))) / 2u))))); - v_i += 1u; + v_filter = a_workbuf.ptr[0u]; + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, 1u); + if (self->private_impl.f_pass_bytes_per_row > ((uint64_t)(a_workbuf.len))) { + return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + } + v_curr_row = wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_pass_bytes_per_row); + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, self->private_impl.f_pass_bytes_per_row); + if (v_filter == 0u) { + } else if (v_filter == 1u) { + wuffs_png__decoder__filter_1(self, v_curr_row); + } else if (v_filter == 2u) { + wuffs_png__decoder__filter_2(self, v_curr_row, v_prev_row); + } else if (v_filter == 3u) { + wuffs_png__decoder__filter_3(self, v_curr_row, v_prev_row); + } else if (v_filter == 4u) { + wuffs_png__decoder__filter_4(self, v_curr_row, v_prev_row); + } else { + return wuffs_base__make_status(wuffs_png__error__bad_filter); } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, v_curr_row); + v_prev_row = v_curr_row; + v_y += 1u; } - return wuffs_base__make_empty_struct(); + return wuffs_base__make_status(NULL); } -// -------- func png.decoder.filter_3_distance_3_fallback +// -------- func png.decoder.filter_and_swizzle_tricky WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_3_fallback( +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle_tricky( wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8_t v_fa0 = 0; - uint8_t v_fa1 = 0; - uint8_t v_fa2 = 0; + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint64_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row1 = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + uint64_t v_src_bytes_per_pixel = 0; + uint32_t v_x = 0; + uint32_t v_y = 0; + uint64_t v_i = 0; + wuffs_base__slice_u8 v_dst = {0}; + uint8_t v_filter = 0; + wuffs_base__slice_u8 v_s = {0}; + wuffs_base__slice_u8 v_curr_row = {0}; + wuffs_base__slice_u8 v_prev_row = {0}; + uint8_t v_bits_unpacked[8] = {0}; + uint8_t v_bits_packed = 0; + uint8_t v_packs_remaining = 0; + uint8_t v_multiplier = 0; + uint8_t v_shift = 0; - if (((uint64_t)(a_prev.len)) == 0u) { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 3; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)((v_fa0 / 2u) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)((v_fa1 / 2u) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)((v_fa2 / 2u) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_fa0 = ((uint8_t)((v_fa0 / 2u) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)((v_fa1 / 2u) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)((v_fa2 / 2u) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); + v_dst_bytes_per_row1 = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * v_dst_bytes_per_pixel); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_src_bytes_per_pixel = 1u; + if (self->private_impl.f_depth >= 8u) { + v_src_bytes_per_pixel = (((uint64_t)(WUFFS_PNG__NUM_CHANNELS[self->private_impl.f_color_type])) * ((uint64_t)(((uint8_t)(self->private_impl.f_depth >> 3u))))); + } + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + v_y = ((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][5u])); + } else { + v_y = self->private_impl.f_frame_rect_y0; + } + while (v_y < self->private_impl.f_frame_rect_y1) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (v_dst_bytes_per_row1 < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row1); + } + if (1u > ((uint64_t)(a_workbuf.len))) { + return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + } + v_filter = a_workbuf.ptr[0u]; + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, 1u); + if (self->private_impl.f_pass_bytes_per_row > ((uint64_t)(a_workbuf.len))) { + return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + } + v_curr_row = wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_pass_bytes_per_row); + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, self->private_impl.f_pass_bytes_per_row); + if (v_filter == 0u) { + } else if (v_filter == 1u) { + wuffs_png__decoder__filter_1(self, v_curr_row); + } else if (v_filter == 2u) { + wuffs_png__decoder__filter_2(self, v_curr_row, v_prev_row); + } else if (v_filter == 3u) { + wuffs_png__decoder__filter_3(self, v_curr_row, v_prev_row); + } else if (v_filter == 4u) { + wuffs_png__decoder__filter_4(self, v_curr_row, v_prev_row); + } else { + return wuffs_base__make_status(wuffs_png__error__bad_filter); + } + v_s = v_curr_row; + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + v_x = ((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][2u])); + } else { + v_x = self->private_impl.f_frame_rect_x0; + } + if (self->private_impl.f_depth == 8u) { + while (v_x < self->private_impl.f_frame_rect_x1) { + v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); + if (v_i <= ((uint64_t)(v_dst.len))) { + if (((uint32_t)(self->private_impl.f_remap_transparency)) != 0u) { + if (self->private_impl.f_color_type == 0u) { + if (1u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[0u]; + v_bits_unpacked[1u] = v_s.ptr[0u]; + v_bits_unpacked[2u] = v_s.ptr[0u]; + v_bits_unpacked[3u] = 255u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | + (((uint32_t)(v_bits_unpacked[1u])) << 8u) | + (((uint32_t)(v_bits_unpacked[2u])) << 16u) | + (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); + } + } else { + if (3u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[2u]; + v_bits_unpacked[1u] = v_s.ptr[1u]; + v_bits_unpacked[2u] = v_s.ptr[0u]; + v_bits_unpacked[3u] = 255u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 3u); + if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | + (((uint32_t)(v_bits_unpacked[1u])) << 8u) | + (((uint32_t)(v_bits_unpacked[2u])) << 16u) | + (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); + } + } + } else if (v_src_bytes_per_pixel <= ((uint64_t)(v_s.len))) { + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__slice_u8__subslice_j(v_s, v_src_bytes_per_pixel)); + v_s = wuffs_base__slice_u8__subslice_i(v_s, v_src_bytes_per_pixel); + } + } + v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); } - v_curr.len = 3; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end1_curr) { - v_fa0 = ((uint8_t)((v_fa0 / 2u) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)((v_fa1 / 2u) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)((v_fa2 / 2u) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; + } else if (self->private_impl.f_depth < 8u) { + v_multiplier = 1u; + if (self->private_impl.f_color_type == 0u) { + v_multiplier = WUFFS_PNG__LOW_BIT_DEPTH_MULTIPLIERS[self->private_impl.f_depth]; } - v_curr.len = 0; - } - } else { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_prev.ptr += 3; - v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_prev.ptr += 3; + v_shift = ((uint8_t)(((uint8_t)(8u - self->private_impl.f_depth)) & 7u)); + v_packs_remaining = 0u; + while (v_x < self->private_impl.f_frame_rect_x1) { + v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); + if (v_i <= ((uint64_t)(v_dst.len))) { + if ((v_packs_remaining == 0u) && (1u <= ((uint64_t)(v_s.len)))) { + v_packs_remaining = WUFFS_PNG__LOW_BIT_DEPTH_NUM_PACKS[self->private_impl.f_depth]; + v_bits_packed = v_s.ptr[0u]; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + } + v_bits_unpacked[0u] = ((uint8_t)(((uint8_t)(v_bits_packed >> v_shift)) * v_multiplier)); + v_bits_packed = ((uint8_t)(v_bits_packed << self->private_impl.f_depth)); + v_packs_remaining = ((uint8_t)(v_packs_remaining - 1u)); + if (((uint32_t)(self->private_impl.f_remap_transparency)) != 0u) { + v_bits_unpacked[1u] = v_bits_unpacked[0u]; + v_bits_unpacked[2u] = v_bits_unpacked[0u]; + v_bits_unpacked[3u] = 255u; + if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | + (((uint32_t)(v_bits_unpacked[1u])) << 8u) | + (((uint32_t)(v_bits_unpacked[2u])) << 16u) | + (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); + } else { + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 1)); + } + } + v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); } - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end1_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_prev.ptr += 3; + } else { + while (v_x < self->private_impl.f_frame_rect_x1) { + v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); + if (v_i <= ((uint64_t)(v_dst.len))) { + if (self->private_impl.f_color_type == 0u) { + if (2u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[1u]; + v_bits_unpacked[1u] = v_s.ptr[0u]; + v_bits_unpacked[2u] = v_s.ptr[1u]; + v_bits_unpacked[3u] = v_s.ptr[0u]; + v_bits_unpacked[4u] = v_s.ptr[1u]; + v_bits_unpacked[5u] = v_s.ptr[0u]; + v_bits_unpacked[6u] = 255u; + v_bits_unpacked[7u] = 255u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); + if (self->private_impl.f_remap_transparency == ((((uint64_t)(v_bits_unpacked[0u])) << 0u) | + (((uint64_t)(v_bits_unpacked[1u])) << 8u) | + (((uint64_t)(v_bits_unpacked[2u])) << 16u) | + (((uint64_t)(v_bits_unpacked[3u])) << 24u) | + (((uint64_t)(v_bits_unpacked[4u])) << 32u) | + (((uint64_t)(v_bits_unpacked[5u])) << 40u) | + (((uint64_t)(v_bits_unpacked[6u])) << 48u) | + (((uint64_t)(v_bits_unpacked[7u])) << 56u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + v_bits_unpacked[4u] = 0u; + v_bits_unpacked[5u] = 0u; + v_bits_unpacked[6u] = 0u; + v_bits_unpacked[7u] = 0u; + } + } + } else if (self->private_impl.f_color_type == 2u) { + if (6u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[5u]; + v_bits_unpacked[1u] = v_s.ptr[4u]; + v_bits_unpacked[2u] = v_s.ptr[3u]; + v_bits_unpacked[3u] = v_s.ptr[2u]; + v_bits_unpacked[4u] = v_s.ptr[1u]; + v_bits_unpacked[5u] = v_s.ptr[0u]; + v_bits_unpacked[6u] = 255u; + v_bits_unpacked[7u] = 255u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 6u); + if (self->private_impl.f_remap_transparency == ((((uint64_t)(v_bits_unpacked[0u])) << 0u) | + (((uint64_t)(v_bits_unpacked[1u])) << 8u) | + (((uint64_t)(v_bits_unpacked[2u])) << 16u) | + (((uint64_t)(v_bits_unpacked[3u])) << 24u) | + (((uint64_t)(v_bits_unpacked[4u])) << 32u) | + (((uint64_t)(v_bits_unpacked[5u])) << 40u) | + (((uint64_t)(v_bits_unpacked[6u])) << 48u) | + (((uint64_t)(v_bits_unpacked[7u])) << 56u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + v_bits_unpacked[4u] = 0u; + v_bits_unpacked[5u] = 0u; + v_bits_unpacked[6u] = 0u; + v_bits_unpacked[7u] = 0u; + } + } + } else if (self->private_impl.f_color_type == 4u) { + if (4u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[1u]; + v_bits_unpacked[1u] = v_s.ptr[0u]; + v_bits_unpacked[2u] = v_s.ptr[1u]; + v_bits_unpacked[3u] = v_s.ptr[0u]; + v_bits_unpacked[4u] = v_s.ptr[1u]; + v_bits_unpacked[5u] = v_s.ptr[0u]; + v_bits_unpacked[6u] = v_s.ptr[3u]; + v_bits_unpacked[7u] = v_s.ptr[2u]; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + } else { + if (8u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[5u]; + v_bits_unpacked[1u] = v_s.ptr[4u]; + v_bits_unpacked[2u] = v_s.ptr[3u]; + v_bits_unpacked[3u] = v_s.ptr[2u]; + v_bits_unpacked[4u] = v_s.ptr[1u]; + v_bits_unpacked[5u] = v_s.ptr[0u]; + v_bits_unpacked[6u] = v_s.ptr[7u]; + v_bits_unpacked[7u] = v_s.ptr[6u]; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 8u); + } + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 8)); + } + v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); } - v_curr.len = 0; - v_prev.len = 0; } + v_prev_row = v_curr_row; + v_y += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][3u]); } - return wuffs_base__make_empty_struct(); + return wuffs_base__make_status(NULL); } -// -------- func png.decoder.filter_3_distance_4_fallback +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) + +// ---------------- Status Codes Implementations + +const char wuffs_qoi__error__bad_footer[] = "#qoi: bad footer"; +const char wuffs_qoi__error__bad_header[] = "#qoi: bad header"; +const char wuffs_qoi__error__truncated_input[] = "#qoi: truncated input"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8_t v_fa0 = 0; - uint8_t v_fa1 = 0; - uint8_t v_fa2 = 0; - uint8_t v_fa3 = 0; +static wuffs_base__status +wuffs_qoi__decoder__do_decode_image_config( + wuffs_qoi__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_qoi__decoder__do_decode_frame_config( + wuffs_qoi__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_qoi__decoder__do_decode_frame( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_qoi__decoder__from_src_to_buffer( + wuffs_qoi__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_qoi__decoder__from_buffer_to_dst( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_qoi__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_qoi__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_qoi__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_qoi__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_qoi__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_qoi__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_qoi__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_qoi__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_qoi__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_qoi__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_qoi__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_qoi__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_qoi__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_qoi__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_qoi__decoder__initialize( + wuffs_qoi__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } - if (((uint64_t)(a_prev.len)) == 0u) { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)((v_fa0 / 2u) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)((v_fa1 / 2u) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)((v_fa2 / 2u) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_fa3 = ((uint8_t)((v_fa3 / 2u) + v_curr.ptr[3u])); - v_curr.ptr[3u] = v_fa3; - v_curr.ptr += 4; - } - v_curr.len = 0; + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif } else { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_fa3 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa3)) + ((uint32_t)(v_prev.ptr[3u]))) / 2u))) + v_curr.ptr[3u])); - v_curr.ptr[3u] = v_fa3; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 0; - v_prev.len = 0; + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } } - return wuffs_base__make_empty_struct(); + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_qoi__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); } -// -------- func png.decoder.filter_4 +wuffs_qoi__decoder* +wuffs_qoi__decoder__alloc(void) { + wuffs_qoi__decoder* x = + (wuffs_qoi__decoder*)(calloc(1, sizeof(wuffs_qoi__decoder))); + if (!x) { + return NULL; + } + if (wuffs_qoi__decoder__initialize( + x, sizeof(wuffs_qoi__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - return (*self->private_impl.choosy_filter_4)(self, a_curr, a_prev); +size_t +sizeof__wuffs_qoi__decoder(void) { + return sizeof(wuffs_qoi__decoder); } +// ---------------- Function Implementations + +// -------- func qoi.decoder.get_quirk + WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - uint64_t v_filter_distance = 0; - uint64_t v_n = 0; - uint64_t v_i = 0; - uint32_t v_fa = 0; - uint32_t v_fb = 0; - uint32_t v_fc = 0; - uint32_t v_pp = 0; - uint32_t v_pa = 0; - uint32_t v_pb = 0; - uint32_t v_pc = 0; +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_qoi__decoder__get_quirk( + const wuffs_qoi__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); - v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); - v_i = 0u; - while ((v_i < v_n) && (v_i < v_filter_distance)) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + a_prev.ptr[v_i])); - v_i += 1u; + return 0u; +} + +// -------- func qoi.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__set_quirk( + wuffs_qoi__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - v_i = v_filter_distance; - while (v_i < v_n) { - v_fa = ((uint32_t)(a_curr.ptr[(v_i - v_filter_distance)])); - v_fb = ((uint32_t)(a_prev.ptr[v_i])); - v_fc = ((uint32_t)(a_prev.ptr[(v_i - v_filter_distance)])); - v_pp = ((uint32_t)(((uint32_t)(v_fa + v_fb)) - v_fc)); - v_pa = ((uint32_t)(v_pp - v_fa)); - if (v_pa >= 2147483648u) { - v_pa = ((uint32_t)(0u - v_pa)); - } - v_pb = ((uint32_t)(v_pp - v_fb)); - if (v_pb >= 2147483648u) { - v_pb = ((uint32_t)(0u - v_pb)); - } - v_pc = ((uint32_t)(v_pp - v_fc)); - if (v_pc >= 2147483648u) { - v_pc = ((uint32_t)(0u - v_pc)); - } - if ((v_pa <= v_pb) && (v_pa <= v_pc)) { - } else if (v_pb <= v_pc) { - v_fa = v_fb; - } else { - v_fa = v_fc; - } - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(v_fa)))); - v_i += 1u; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - return wuffs_base__make_empty_struct(); + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func png.decoder.filter_4_distance_3_fallback +// -------- func qoi.decoder.decode_image_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint32_t v_fa0 = 0; - uint32_t v_fa1 = 0; - uint32_t v_fa2 = 0; - uint32_t v_fb0 = 0; - uint32_t v_fb1 = 0; - uint32_t v_fb2 = 0; - uint32_t v_fc0 = 0; - uint32_t v_fc1 = 0; - uint32_t v_fc2 = 0; - uint32_t v_pp0 = 0; - uint32_t v_pp1 = 0; - uint32_t v_pp2 = 0; - uint32_t v_pa0 = 0; - uint32_t v_pa1 = 0; - uint32_t v_pa2 = 0; - uint32_t v_pb0 = 0; - uint32_t v_pb1 = 0; - uint32_t v_pb2 = 0; - uint32_t v_pc0 = 0; - uint32_t v_pc1 = 0; - uint32_t v_pc2 = 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__decode_image_config( + wuffs_qoi__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end0_curr) { - v_fb0 = ((uint32_t)(v_prev.ptr[0u])); - v_pp0 = ((uint32_t)(((uint32_t)(v_fa0 + v_fb0)) - v_fc0)); - v_pa0 = ((uint32_t)(v_pp0 - v_fa0)); - if (v_pa0 >= 2147483648u) { - v_pa0 = ((uint32_t)(0u - v_pa0)); - } - v_pb0 = ((uint32_t)(v_pp0 - v_fb0)); - if (v_pb0 >= 2147483648u) { - v_pb0 = ((uint32_t)(0u - v_pb0)); - } - v_pc0 = ((uint32_t)(v_pp0 - v_fc0)); - if (v_pc0 >= 2147483648u) { - v_pc0 = ((uint32_t)(0u - v_pc0)); - } - if ((v_pa0 <= v_pb0) && (v_pa0 <= v_pc0)) { - } else if (v_pb0 <= v_pc0) { - v_fa0 = v_fb0; - } else { - v_fa0 = v_fc0; - } - v_curr.ptr[0u] = ((uint8_t)(v_curr.ptr[0u] + ((uint8_t)(v_fa0)))); - v_fa0 = ((uint32_t)(v_curr.ptr[0u])); - v_fc0 = v_fb0; - v_fb1 = ((uint32_t)(v_prev.ptr[1u])); - v_pp1 = ((uint32_t)(((uint32_t)(v_fa1 + v_fb1)) - v_fc1)); - v_pa1 = ((uint32_t)(v_pp1 - v_fa1)); - if (v_pa1 >= 2147483648u) { - v_pa1 = ((uint32_t)(0u - v_pa1)); - } - v_pb1 = ((uint32_t)(v_pp1 - v_fb1)); - if (v_pb1 >= 2147483648u) { - v_pb1 = ((uint32_t)(0u - v_pb1)); - } - v_pc1 = ((uint32_t)(v_pp1 - v_fc1)); - if (v_pc1 >= 2147483648u) { - v_pc1 = ((uint32_t)(0u - v_pc1)); - } - if ((v_pa1 <= v_pb1) && (v_pa1 <= v_pc1)) { - } else if (v_pb1 <= v_pc1) { - v_fa1 = v_fb1; - } else { - v_fa1 = v_fc1; - } - v_curr.ptr[1u] = ((uint8_t)(v_curr.ptr[1u] + ((uint8_t)(v_fa1)))); - v_fa1 = ((uint32_t)(v_curr.ptr[1u])); - v_fc1 = v_fb1; - v_fb2 = ((uint32_t)(v_prev.ptr[2u])); - v_pp2 = ((uint32_t)(((uint32_t)(v_fa2 + v_fb2)) - v_fc2)); - v_pa2 = ((uint32_t)(v_pp2 - v_fa2)); - if (v_pa2 >= 2147483648u) { - v_pa2 = ((uint32_t)(0u - v_pa2)); - } - v_pb2 = ((uint32_t)(v_pp2 - v_fb2)); - if (v_pb2 >= 2147483648u) { - v_pb2 = ((uint32_t)(0u - v_pb2)); - } - v_pc2 = ((uint32_t)(v_pp2 - v_fc2)); - if (v_pc2 >= 2147483648u) { - v_pc2 = ((uint32_t)(0u - v_pc2)); + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_qoi__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; } - if ((v_pa2 <= v_pb2) && (v_pa2 <= v_pc2)) { - } else if (v_pb2 <= v_pc2) { - v_fa2 = v_fb2; - } else { - v_fa2 = v_fc2; + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_qoi__error__truncated_input); + goto exit; } - v_curr.ptr[2u] = ((uint8_t)(v_curr.ptr[2u] + ((uint8_t)(v_fa2)))); - v_fa2 = ((uint32_t)(v_curr.ptr[2u])); - v_fc2 = v_fb2; - v_curr.ptr += 3; - v_prev.ptr += 3; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - v_curr.len = 0; - v_prev.len = 0; + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; } - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; } -// -------- func png.decoder.filter_4_distance_4_fallback +// -------- func qoi.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint32_t v_fa0 = 0; - uint32_t v_fa1 = 0; - uint32_t v_fa2 = 0; - uint32_t v_fa3 = 0; - uint32_t v_fb0 = 0; - uint32_t v_fb1 = 0; - uint32_t v_fb2 = 0; - uint32_t v_fb3 = 0; - uint32_t v_fc0 = 0; - uint32_t v_fc1 = 0; - uint32_t v_fc2 = 0; - uint32_t v_fc3 = 0; - uint32_t v_pp0 = 0; - uint32_t v_pp1 = 0; - uint32_t v_pp2 = 0; - uint32_t v_pp3 = 0; - uint32_t v_pa0 = 0; - uint32_t v_pa1 = 0; - uint32_t v_pa2 = 0; - uint32_t v_pa3 = 0; - uint32_t v_pb0 = 0; - uint32_t v_pb1 = 0; - uint32_t v_pb2 = 0; - uint32_t v_pb3 = 0; - uint32_t v_pc0 = 0; - uint32_t v_pc1 = 0; - uint32_t v_pc2 = 0; - uint32_t v_pc3 = 0; +static wuffs_base__status +wuffs_qoi__decoder__do_decode_image_config( + wuffs_qoi__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end0_curr) { - v_fb0 = ((uint32_t)(v_prev.ptr[0u])); - v_pp0 = ((uint32_t)(((uint32_t)(v_fa0 + v_fb0)) - v_fc0)); - v_pa0 = ((uint32_t)(v_pp0 - v_fa0)); - if (v_pa0 >= 2147483648u) { - v_pa0 = ((uint32_t)(0u - v_pa0)); - } - v_pb0 = ((uint32_t)(v_pp0 - v_fb0)); - if (v_pb0 >= 2147483648u) { - v_pb0 = ((uint32_t)(0u - v_pb0)); - } - v_pc0 = ((uint32_t)(v_pp0 - v_fc0)); - if (v_pc0 >= 2147483648u) { - v_pc0 = ((uint32_t)(0u - v_pc0)); - } - if ((v_pa0 <= v_pb0) && (v_pa0 <= v_pc0)) { - } else if (v_pb0 <= v_pc0) { - v_fa0 = v_fb0; - } else { - v_fa0 = v_fc0; - } - v_curr.ptr[0u] = ((uint8_t)(v_curr.ptr[0u] + ((uint8_t)(v_fa0)))); - v_fa0 = ((uint32_t)(v_curr.ptr[0u])); - v_fc0 = v_fb0; - v_fb1 = ((uint32_t)(v_prev.ptr[1u])); - v_pp1 = ((uint32_t)(((uint32_t)(v_fa1 + v_fb1)) - v_fc1)); - v_pa1 = ((uint32_t)(v_pp1 - v_fa1)); - if (v_pa1 >= 2147483648u) { - v_pa1 = ((uint32_t)(0u - v_pa1)); - } - v_pb1 = ((uint32_t)(v_pp1 - v_fb1)); - if (v_pb1 >= 2147483648u) { - v_pb1 = ((uint32_t)(0u - v_pb1)); - } - v_pc1 = ((uint32_t)(v_pp1 - v_fc1)); - if (v_pc1 >= 2147483648u) { - v_pc1 = ((uint32_t)(0u - v_pc1)); - } - if ((v_pa1 <= v_pb1) && (v_pa1 <= v_pc1)) { - } else if (v_pb1 <= v_pc1) { - v_fa1 = v_fb1; + uint32_t v_a = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - v_fa1 = v_fc1; - } - v_curr.ptr[1u] = ((uint8_t)(v_curr.ptr[1u] + ((uint8_t)(v_fa1)))); - v_fa1 = ((uint32_t)(v_curr.ptr[1u])); - v_fc1 = v_fb1; - v_fb2 = ((uint32_t)(v_prev.ptr[2u])); - v_pp2 = ((uint32_t)(((uint32_t)(v_fa2 + v_fb2)) - v_fc2)); - v_pa2 = ((uint32_t)(v_pp2 - v_fa2)); - if (v_pa2 >= 2147483648u) { - v_pa2 = ((uint32_t)(0u - v_pa2)); - } - v_pb2 = ((uint32_t)(v_pp2 - v_fb2)); - if (v_pb2 >= 2147483648u) { - v_pb2 = ((uint32_t)(0u - v_pb2)); - } - v_pc2 = ((uint32_t)(v_pp2 - v_fc2)); - if (v_pc2 >= 2147483648u) { - v_pc2 = ((uint32_t)(0u - v_pc2)); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } } - if ((v_pa2 <= v_pb2) && (v_pa2 <= v_pc2)) { - } else if (v_pb2 <= v_pc2) { - v_fa2 = v_fb2; + v_a = t_0; + } + if (v_a != 1718185841u) { + status = wuffs_base__make_status(wuffs_qoi__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - v_fa2 = v_fc2; - } - v_curr.ptr[2u] = ((uint8_t)(v_curr.ptr[2u] + ((uint8_t)(v_fa2)))); - v_fa2 = ((uint32_t)(v_curr.ptr[2u])); - v_fc2 = v_fb2; - v_fb3 = ((uint32_t)(v_prev.ptr[3u])); - v_pp3 = ((uint32_t)(((uint32_t)(v_fa3 + v_fb3)) - v_fc3)); - v_pa3 = ((uint32_t)(v_pp3 - v_fa3)); - if (v_pa3 >= 2147483648u) { - v_pa3 = ((uint32_t)(0u - v_pa3)); - } - v_pb3 = ((uint32_t)(v_pp3 - v_fb3)); - if (v_pb3 >= 2147483648u) { - v_pb3 = ((uint32_t)(0u - v_pb3)); - } - v_pc3 = ((uint32_t)(v_pp3 - v_fc3)); - if (v_pc3 >= 2147483648u) { - v_pc3 = ((uint32_t)(0u - v_pc3)); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); + } } - if ((v_pa3 <= v_pb3) && (v_pa3 <= v_pc3)) { - } else if (v_pb3 <= v_pc3) { - v_fa3 = v_fb3; + v_a = t_1; + } + if (v_a > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_width = v_a; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - v_fa3 = v_fc3; + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } } - v_curr.ptr[3u] = ((uint8_t)(v_curr.ptr[3u] + ((uint8_t)(v_fa3)))); - v_fa3 = ((uint32_t)(v_curr.ptr[3u])); - v_fc3 = v_fb3; - v_curr.ptr += 4; - v_prev.ptr += 4; + v_a = t_2; } - v_curr.len = 0; - v_prev.len = 0; - } - return wuffs_base__make_empty_struct(); -} + if (v_a > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_height = v_a; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_3 = *iop_a_src++; + v_a = t_3; + } + if (v_a == 3u) { + self->private_impl.f_pixfmt = 2415954056u; + } else if (v_a == 4u) { + self->private_impl.f_pixfmt = 2164295816u; + } else { + status = wuffs_base__make_status(wuffs_qoi__error__bad_header); + goto exit; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src++; + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + 14u, + (self->private_impl.f_pixfmt == 2415954056u)); + } + self->private_impl.f_call_sequence = 32u; -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func png.decoder.filter_1_distance_4_x86_sse42 + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; + } -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - wuffs_base__slice_u8 v_curr = {0}; - __m128i v_x128 = {0}; - __m128i v_a128 = {0}; + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_a128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_a128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - } - v_curr.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_a128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - } - v_curr.len = 0; + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_empty_struct(); + + return status; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func png.decoder.filter_3_distance_4_x86_sse42 +// -------- func qoi.decoder.decode_frame_config -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - __m128i v_x128 = {0}; - __m128i v_a128 = {0}; - __m128i v_b128 = {0}; - __m128i v_p128 = {0}; - __m128i v_k128 = {0}; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__decode_frame_config( + wuffs_qoi__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - if (((uint64_t)(a_prev.len)) == 0u) { - v_k128 = _mm_set1_epi8((int8_t)(254u)); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - } - v_curr.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - } - v_curr.len = 0; - } - } else { - v_k128 = _mm_set1_epi8((int8_t)(1u)); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_p128 = _mm_avg_epu8(v_a128, v_b128); - v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_p128 = _mm_avg_epu8(v_a128, v_b128); - v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_qoi__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_p128 = _mm_avg_epu8(v_a128, v_b128); - v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_qoi__error__truncated_input); + goto exit; } - v_curr.len = 0; - v_prev.len = 0; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func png.decoder.filter_4_distance_3_x86_sse42 + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - __m128i v_x128 = {0}; - __m128i v_a128 = {0}; - __m128i v_b128 = {0}; - __m128i v_c128 = {0}; - __m128i v_p128 = {0}; - __m128i v_pa128 = {0}; - __m128i v_pb128 = {0}; - __m128i v_pc128 = {0}; - __m128i v_smallest128 = {0}; - __m128i v_z128 = {0}; + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + wuffs_base__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 7, 6); - while (v_curr.ptr < i_end0_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 3; - v_prev.ptr += 3; - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + wuffs_base__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 4, 3); - while (v_curr.ptr < i_end1_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end2_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end2_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u24le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u24le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 0; - v_prev.len = 0; + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return wuffs_base__make_empty_struct(); + return status; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func png.decoder.filter_4_distance_4_x86_sse42 +// -------- func qoi.decoder.do_decode_frame_config -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - __m128i v_x128 = {0}; - __m128i v_a128 = {0}; - __m128i v_b128 = {0}; - __m128i v_c128 = {0}; - __m128i v_p128 = {0}; - __m128i v_pa128 = {0}; - __m128i v_pb128 = {0}; - __m128i v_pc128 = {0}; - __m128i v_smallest128 = {0}; - __m128i v_z128 = {0}; +static wuffs_base__status +wuffs_qoi__decoder__do_decode_frame_config( + wuffs_qoi__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_qoi__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (16u != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } - v_curr.len = 0; - v_prev.len = 0; - } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 - -// -------- func png.decoder.get_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_png__decoder__get_quirk( - const wuffs_png__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + 14u, + 0u, + (self->private_impl.f_pixfmt == 2415954056u), + false, + 0u); + } + self->private_impl.f_call_sequence = 64u; - if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { - return 1u; + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; } - return 0u; -} -// -------- func png.decoder.set_quirk + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__set_quirk( - wuffs_png__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (a_key == 1u) { - self->private_impl.f_ignore_checksum = (a_value > 0u); - wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, a_key, a_value); - return wuffs_base__make_status(NULL); - } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + return status; } -// -------- func png.decoder.decode_image_config +// -------- func qoi.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__decode_image_config( - wuffs_png__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_qoi__decoder__decode_frame( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -54464,12 +67805,12 @@ wuffs_png__decoder__decode_image_config( ? wuffs_base__error__disabled_by_previous_error : wuffs_base__error__initialize_not_called); } - if (!a_src) { + if (!a_dst || !a_src) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { + (self->private_impl.active_coroutine != 3)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -54478,17 +67819,22 @@ wuffs_png__decoder__decode_image_config( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_png__decoder__do_decode_image_config(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_qoi__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); + status = wuffs_base__make_status(wuffs_qoi__error__truncated_input); goto exit; } status = v_status; @@ -54496,14 +67842,14 @@ wuffs_png__decoder__decode_image_config( } ok: - self->private_impl.p_decode_image_config[0] = 0; + self->private_impl.p_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; goto exit; exit: @@ -54513,21 +67859,21 @@ wuffs_png__decoder__decode_image_config( return status; } -// -------- func png.decoder.do_decode_image_config +// -------- func qoi.decoder.do_decode_frame WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__do_decode_image_config( - wuffs_png__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_qoi__decoder__do_decode_frame( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint64_t v_magic = 0; - uint64_t v_mark = 0; - uint32_t v_checksum_have = 0; - uint32_t v_checksum_want = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint64_t v_c64 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -54540,281 +67886,332 @@ wuffs_png__decoder__do_decode_image_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config[0]; - if (coro_susp_point) { - v_checksum_have = self->private_data.s_do_decode_image_config[0].v_checksum_have; - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if ( ! self->private_impl.f_seen_ihdr) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { - t_0 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); - iop_a_src += 8; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 56) { - t_0 = ((uint64_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; - } - } - v_magic = t_0; + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (v_magic != 727905341920923785u) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_qoi__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); goto exit; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint64_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { - t_1 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); - iop_a_src += 8; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 56) { - t_1 = ((uint64_t)(*scratch)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; - } - } - v_magic = t_1; + goto ok; + } + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y = 0u; + self->private_data.f_pixel[0u] = 0u; + self->private_data.f_pixel[1u] = 0u; + self->private_data.f_pixel[2u] = 0u; + self->private_data.f_pixel[3u] = 255u; + wuffs_private_impl__bulk_memset(&self->private_data.f_cache[0], 256u, 0u); + self->private_impl.f_remaining_pixels_times_4 = (((uint64_t)(self->private_impl.f_width)) * ((uint64_t)(self->private_impl.f_height)) * 4u); + while (self->private_impl.f_remaining_pixels_times_4 > 0u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (v_magic != 5927942488114331648u) { - if (v_magic == 5278895250759221248u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_cgbi_extension); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_qoi__decoder__from_src_to_buffer(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_remaining_pixels_times_4 < ((uint64_t)(self->private_impl.f_buffer_index))) { + status = wuffs_base__make_status(wuffs_base__error__too_much_data); + goto exit; + } + self->private_impl.f_remaining_pixels_times_4 -= ((uint64_t)(self->private_impl.f_buffer_index)); + v_status = wuffs_qoi__decoder__from_buffer_to_dst(self, a_dst); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); goto exit; } - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; + goto ok; } - self->private_impl.f_chunk_type_array[0u] = 73u; - self->private_impl.f_chunk_type_array[1u] = 72u; - self->private_impl.f_chunk_type_array[2u] = 68u; - self->private_impl.f_chunk_type_array[3u] = 82u; - wuffs_base__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); - while (true) { - v_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_0 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_decode_frame.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - wuffs_base__status t_2 = wuffs_png__decoder__decode_ihdr(self, a_src); - v_status = t_2; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + uint64_t* scratch = &self->private_data.s_do_decode_frame.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 56) { + t_0 = ((uint64_t)(*scratch >> 0)); + break; } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); } - if ( ! self->private_impl.f_ignore_checksum) { - v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); - } - if (wuffs_base__status__is_ok(&v_status)) { - break; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); } + v_c64 = t_0; + } + if (v_c64 != 1u) { + status = wuffs_base__make_status(wuffs_qoi__error__bad_footer); + goto exit; + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func qoi.decoder.from_src_to_buffer + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_qoi__decoder__from_src_to_buffer( + wuffs_qoi__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint8_t v_dg = 0; + uint32_t v_bi = 0; + uint32_t v_bj = 0; + uint32_t v_bk = 0; + uint32_t v_ci = 0; + uint32_t v_hash4 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_from_src_to_buffer; + if (coro_susp_point) { + v_dg = self->private_data.s_from_src_to_buffer.v_dg; + v_bi = self->private_data.s_from_src_to_buffer.v_bi; + v_bk = self->private_data.s_from_src_to_buffer.v_bk; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + v_bk = 7936u; + if (self->private_impl.f_remaining_pixels_times_4 < 7936u) { + v_bk = ((uint32_t)(self->private_impl.f_remaining_pixels_times_4)); + } + while (v_bi < v_bk) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); - } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_checksum_want = t_3; - } - if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != v_checksum_want)) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - self->private_impl.f_seen_ihdr = true; - } else if (self->private_impl.f_metadata_fourcc != 0u) { - self->private_impl.f_call_sequence = 16u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; - } - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - continue; + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } - self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); - if (self->private_impl.f_chunk_type == 1413563465u) { - if ( ! self->private_impl.f_seen_actl || self->private_impl.f_seen_fctl) { - break; + if (v_c8 == 254u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + self->private_data.f_pixel[2u] = t_1; } - self->private_impl.f_seen_idat = true; - } else if (self->private_impl.f_chunk_type == 1413571686u) { - if (self->private_impl.f_seen_idat && self->private_impl.f_seen_fctl) { - break; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + self->private_data.f_pixel[1u] = t_2; } - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - iop_a_src += 8u; - if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u)) { - self->private_impl.f_chunk_type_array[0u] = ((uint8_t)((self->private_impl.f_chunk_type >> 0u))); - self->private_impl.f_chunk_type_array[1u] = ((uint8_t)((self->private_impl.f_chunk_type >> 8u))); - self->private_impl.f_chunk_type_array[2u] = ((uint8_t)((self->private_impl.f_chunk_type >> 16u))); - self->private_impl.f_chunk_type_array[3u] = ((uint8_t)((self->private_impl.f_chunk_type >> 24u))); - wuffs_base__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); - } - while (true) { - v_mark = ((uint64_t)(iop_a_src - io0_a_src)); { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - wuffs_base__status t_4 = wuffs_png__decoder__decode_other_chunk(self, a_src, false); - v_status = t_4; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + uint8_t t_3 = *iop_a_src++; + self->private_data.f_pixel[0u] = t_3; + } + } else if (v_c8 == 255u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_4 = *iop_a_src++; + self->private_data.f_pixel[2u] = t_4; } - if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u)) { - v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + self->private_data.f_pixel[1u] = t_5; } - if (wuffs_base__status__is_ok(&v_status)) { - break; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + self->private_data.f_pixel[0u] = t_6; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - } - if (self->private_impl.f_metadata_fourcc != 0u) { - self->private_impl.f_call_sequence = 16u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - uint32_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_5 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 24) { - t_5 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_7 = *iop_a_src++; + self->private_data.f_pixel[3u] = t_7; } - v_checksum_want = t_5; - } - if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u) && (v_checksum_have != v_checksum_want)) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - } - if ((self->private_impl.f_color_type == 3u) && ! self->private_impl.f_seen_plte) { - status = wuffs_base__make_status(wuffs_png__error__missing_palette); - goto exit; - } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - self->private_impl.f_first_config_io_position = self->private_impl.f_frame_config_io_position; - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - self->private_impl.f_dst_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_first_config_io_position, - ((self->private_impl.f_color_type <= 3u) && ! self->private_impl.f_seen_trns)); - } - if ( ! self->private_impl.f_seen_actl) { - self->private_impl.f_num_animation_frames_value = 1u; - self->private_impl.f_first_rect_x0 = 0u; - self->private_impl.f_first_rect_y0 = 0u; - self->private_impl.f_first_rect_x1 = self->private_impl.f_width; - self->private_impl.f_first_rect_y1 = self->private_impl.f_height; - self->private_impl.f_first_duration = 0u; - self->private_impl.f_first_disposal = 0u; - self->private_impl.f_first_overwrite_instead_of_blend = false; - } - self->private_impl.f_call_sequence = 32u; + } else if (((uint8_t)(v_c8 >> 6u)) == 0u) { + v_ci = (4u * ((uint32_t)(((uint8_t)(v_c8 & 63u))))); + self->private_data.f_pixel[0u] = self->private_data.f_cache[(v_ci + 0u)]; + self->private_data.f_pixel[1u] = self->private_data.f_cache[(v_ci + 1u)]; + self->private_data.f_pixel[2u] = self->private_data.f_cache[(v_ci + 2u)]; + self->private_data.f_pixel[3u] = self->private_data.f_cache[(v_ci + 3u)]; + self->private_data.f_buffer[(v_bi + 0u)] = self->private_data.f_pixel[0u]; + self->private_data.f_buffer[(v_bi + 1u)] = self->private_data.f_pixel[1u]; + self->private_data.f_buffer[(v_bi + 2u)] = self->private_data.f_pixel[2u]; + self->private_data.f_buffer[(v_bi + 3u)] = self->private_data.f_pixel[3u]; + v_bi += 4u; + continue; + } else if (((uint8_t)(v_c8 >> 6u)) == 1u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_pixel[2u] += ((uint8_t)(((uint8_t)(((uint8_t)(v_c8 >> 4u)) & 3u)) + 254u)); + self->private_data.f_pixel[1u] += ((uint8_t)(((uint8_t)(((uint8_t)(v_c8 >> 2u)) & 3u)) + 254u)); + self->private_data.f_pixel[0u] += ((uint8_t)(((uint8_t)(((uint8_t)(v_c8 >> 0u)) & 3u)) + 254u)); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (((uint8_t)(v_c8 >> 6u)) == 2u) { + v_dg = ((uint8_t)(((uint8_t)(v_c8 & 63u)) + 224u)); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + v_c8 = t_8; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_pixel[2u] += ((uint8_t)(((uint8_t)(v_dg + 248u)) + ((uint8_t)(15u & ((uint8_t)(v_c8 >> 4u)))))); + self->private_data.f_pixel[1u] += v_dg; + self->private_data.f_pixel[0u] += ((uint8_t)(((uint8_t)(v_dg + 248u)) + ((uint8_t)(15u & ((uint8_t)(v_c8 >> 0u)))))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + v_bj = (v_bi + (4u * (63u & (1u + ((uint32_t)(v_c8)))))); + while (v_bi < v_bj) { + self->private_data.f_buffer[(v_bi + 0u)] = self->private_data.f_pixel[0u]; + self->private_data.f_buffer[(v_bi + 1u)] = self->private_data.f_pixel[1u]; + self->private_data.f_buffer[(v_bi + 2u)] = self->private_data.f_pixel[2u]; + self->private_data.f_buffer[(v_bi + 3u)] = self->private_data.f_pixel[3u]; + v_bi += 4u; + } + continue; + } + v_hash4 = (4u * (63u & ((((uint32_t)(self->private_data.f_pixel[2u])) * 3u) + + (((uint32_t)(self->private_data.f_pixel[1u])) * 5u) + + (((uint32_t)(self->private_data.f_pixel[0u])) * 7u) + + (((uint32_t)(self->private_data.f_pixel[3u])) * 11u)))); + self->private_data.f_cache[(v_hash4 + 0u)] = self->private_data.f_pixel[0u]; + self->private_data.f_cache[(v_hash4 + 1u)] = self->private_data.f_pixel[1u]; + self->private_data.f_cache[(v_hash4 + 2u)] = self->private_data.f_pixel[2u]; + self->private_data.f_cache[(v_hash4 + 3u)] = self->private_data.f_pixel[3u]; + self->private_data.f_buffer[(v_bi + 0u)] = self->private_data.f_pixel[0u]; + self->private_data.f_buffer[(v_bi + 1u)] = self->private_data.f_pixel[1u]; + self->private_data.f_buffer[(v_bi + 2u)] = self->private_data.f_pixel[2u]; + self->private_data.f_buffer[(v_bi + 3u)] = self->private_data.f_pixel[3u]; + v_bi += 4u; + } + self->private_impl.f_buffer_index = v_bi; + goto ok; ok: - self->private_impl.p_do_decode_image_config[0] = 0; + self->private_impl.p_from_src_to_buffer = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_image_config[0].v_checksum_have = v_checksum_have; + self->private_impl.p_from_src_to_buffer = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_from_src_to_buffer.v_dg = v_dg; + self->private_data.s_from_src_to_buffer.v_bi = v_bi; + self->private_data.s_from_src_to_buffer.v_bk = v_bk; goto exit; exit: @@ -54825,1068 +68222,1113 @@ wuffs_png__decoder__do_decode_image_config( return status; } -// -------- func png.decoder.decode_ihdr +// -------- func qoi.decoder.from_buffer_to_dst WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_ihdr( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_a32 = 0; - uint8_t v_a8 = 0; +wuffs_qoi__decoder__from_buffer_to_dst( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__table_u8 v_tab = {0}; + uint32_t v_bi = 0; + uint32_t v_rem_x = 0; + wuffs_base__slice_u8 v_dst = {0}; + wuffs_base__slice_u8 v_src = {0}; + uint32_t v_src_length = 0; + uint64_t v_i = 0; - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } - - uint32_t coro_susp_point = self->private_impl.p_decode_ihdr[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_ihdr[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_ihdr[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - v_a32 = t_0; - } - if ((v_a32 == 0u) || (v_a32 > 2147483647u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } else if (v_a32 > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - self->private_impl.f_width = v_a32; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_ihdr[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_ihdr[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } - } - v_a32 = t_1; - } - if ((v_a32 == 0u) || (v_a32 > 2147483647u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } else if (v_a32 > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - self->private_impl.f_height = v_a32; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - v_a8 = t_2; - } - if (v_a8 > 16u) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } - self->private_impl.f_depth = v_a8; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_a8 = t_3; - } - if ((v_a8 == 1u) || (v_a8 == 5u) || (v_a8 > 6u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } - self->private_impl.f_color_type = v_a8; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_a8 = t_4; - } - if (v_a8 != 0u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (v_bi < self->private_impl.f_buffer_index) { + if (self->private_impl.f_width <= self->private_impl.f_dst_x) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += 1u; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + break; } - uint8_t t_5 = *iop_a_src++; - v_a8 = t_5; - } - if (v_a8 != 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; + v_rem_x = self->private_impl.f_width; + } else { + v_rem_x = (self->private_impl.f_width - self->private_impl.f_dst_x); } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_6 = *iop_a_src++; - v_a8 = t_6; + v_src = wuffs_base__make_slice_u8_ij(self->private_data.f_buffer, v_bi, self->private_impl.f_buffer_index); + if (((uint64_t)((4u * v_rem_x))) < ((uint64_t)(v_src.len))) { + v_src = wuffs_base__slice_u8__subslice_j(v_src, ((uint64_t)((4u * v_rem_x)))); } - if (v_a8 == 0u) { - self->private_impl.f_interlace_pass = 0u; - } else if (v_a8 == 1u) { - self->private_impl.f_interlace_pass = 1u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; + v_src_length = ((uint32_t)(((uint64_t)(v_src.len)))); + v_bi += v_src_length; + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); } - self->private_impl.f_filter_distance = 0u; - wuffs_png__decoder__assign_filter_distance(self); - if (self->private_impl.f_filter_distance == 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + self->private_impl.f_dst_x += (v_src_length / 4u); + if (v_i < ((uint64_t)(v_dst.len))) { + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), wuffs_base__pixel_buffer__palette(a_dst), v_src); } - self->private_impl.f_overall_workbuf_length = (((uint64_t)(self->private_impl.f_height)) * (1u + wuffs_png__decoder__calculate_bytes_per_row(self, self->private_impl.f_width))); - wuffs_png__decoder__choose_filter_implementations(self); + } + return wuffs_base__make_status(NULL); +} - goto ok; - ok: - self->private_impl.p_decode_ihdr[0] = 0; - goto exit; +// -------- func qoi.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_qoi__decoder__frame_dirty_rect( + const wuffs_qoi__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); } - goto suspend; - suspend: - self->private_impl.p_decode_ihdr[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func qoi.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_qoi__decoder__num_animation_loops( + const wuffs_qoi__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func qoi.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_qoi__decoder__num_decoded_frame_configs( + const wuffs_qoi__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} +// -------- func qoi.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_qoi__decoder__num_decoded_frames( + const wuffs_qoi__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func qoi.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__restart_frame( + wuffs_qoi__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if ((a_index != 0u) || (a_io_position != 14u)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); +} + +// -------- func qoi.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_qoi__decoder__set_report_metadata( + wuffs_qoi__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func qoi.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__tell_me_more( + wuffs_qoi__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: goto exit; exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func png.decoder.assign_filter_distance +// -------- func qoi.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_qoi__decoder__workbuf_len( + const wuffs_qoi__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) + +// ---------------- Status Codes Implementations + +// ---------------- Private Consts + +static const uint32_t +WUFFS_SHA256__INITIAL_SHA256_H[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1779033703u, 3144134277u, 1013904242u, 2773480762u, 1359893119u, 2600822924u, 528734635u, 1541459225u, +}; + +static const uint32_t +WUFFS_SHA256__K[64] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1116352408u, 1899447441u, 3049323471u, 3921009573u, 961987163u, 1508970993u, 2453635748u, 2870763221u, + 3624381080u, 310598401u, 607225278u, 1426881987u, 1925078388u, 2162078206u, 2614888103u, 3248222580u, + 3835390401u, 4022224774u, 264347078u, 604807628u, 770255983u, 1249150122u, 1555081692u, 1996064986u, + 2554220882u, 2821834349u, 2952996808u, 3210313671u, 3336571891u, 3584528711u, 113926993u, 338241895u, + 666307205u, 773529912u, 1294757372u, 1396182291u, 1695183700u, 1986661051u, 2177026350u, 2456956037u, + 2730485921u, 2820302411u, 3259730800u, 3345764771u, 3516065817u, 3600352804u, 4094571909u, 275423344u, + 430227734u, 506948616u, 659060556u, 883997877u, 958139571u, 1322822218u, 1537002063u, 1747873779u, + 1955562222u, 2024104815u, 2227730452u, 2361852424u, 2428436474u, 2756734187u, 3204031479u, 3329325298u, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_png__decoder__assign_filter_distance( - wuffs_png__decoder* self) { - if (self->private_impl.f_depth < 8u) { - if ((self->private_impl.f_depth != 1u) && (self->private_impl.f_depth != 2u) && (self->private_impl.f_depth != 4u)) { - return wuffs_base__make_empty_struct(); - } else if (self->private_impl.f_color_type == 0u) { - self->private_impl.f_dst_pixfmt = 536870920u; - self->private_impl.f_src_pixfmt = 536870920u; - } else if (self->private_impl.f_color_type == 3u) { - self->private_impl.f_dst_pixfmt = 2198077448u; - self->private_impl.f_src_pixfmt = 2198077448u; +wuffs_sha256__hasher__up( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x); + +// ---------------- VTables + +const wuffs_base__hasher_bitvec256__func_ptrs +wuffs_sha256__hasher__func_ptrs_for__wuffs_base__hasher_bitvec256 = { + (wuffs_base__bitvec256(*)(const void*))(&wuffs_sha256__hasher__checksum_bitvec256), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_sha256__hasher__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_sha256__hasher__set_quirk), + (wuffs_base__empty_struct(*)(void*, + wuffs_base__slice_u8))(&wuffs_sha256__hasher__update), + (wuffs_base__bitvec256(*)(void*, + wuffs_base__slice_u8))(&wuffs_sha256__hasher__update_bitvec256), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_sha256__hasher__initialize( + wuffs_sha256__hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; } else { - return wuffs_base__make_empty_struct(); + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - self->private_impl.f_filter_distance = 1u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } else if (self->private_impl.f_color_type == 0u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 536870920u; - self->private_impl.f_src_pixfmt = 536870920u; - self->private_impl.f_filter_distance = 1u; - } else if (self->private_impl.f_depth == 16u) { - if (self->private_impl.f_interlace_pass == 0u) { - self->private_impl.f_dst_pixfmt = 536870923u; - self->private_impl.f_src_pixfmt = 537919499u; - } else { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__hasher_bitvec256.vtable_name = + wuffs_base__hasher_bitvec256__vtable_name; + self->private_impl.vtable_for__wuffs_base__hasher_bitvec256.function_pointers = + (const void*)(&wuffs_sha256__hasher__func_ptrs_for__wuffs_base__hasher_bitvec256); + return wuffs_base__make_status(NULL); +} + +wuffs_sha256__hasher* +wuffs_sha256__hasher__alloc(void) { + wuffs_sha256__hasher* x = + (wuffs_sha256__hasher*)(calloc(1, sizeof(wuffs_sha256__hasher))); + if (!x) { + return NULL; + } + if (wuffs_sha256__hasher__initialize( + x, sizeof(wuffs_sha256__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_sha256__hasher(void) { + return sizeof(wuffs_sha256__hasher); +} + +// ---------------- Function Implementations + +// -------- func sha256.hasher.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_sha256__hasher__get_quirk( + const wuffs_sha256__hasher* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func sha256.hasher.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_sha256__hasher__set_quirk( + wuffs_sha256__hasher* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func sha256.hasher.update + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_sha256__hasher__update( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } + + uint64_t v_new_lmu = 0; + + if ((self->private_impl.f_length_modulo_u64 == 0u) && ! self->private_impl.f_length_overflows_u64) { + self->private_impl.f_h0 = WUFFS_SHA256__INITIAL_SHA256_H[0u]; + self->private_impl.f_h1 = WUFFS_SHA256__INITIAL_SHA256_H[1u]; + self->private_impl.f_h2 = WUFFS_SHA256__INITIAL_SHA256_H[2u]; + self->private_impl.f_h3 = WUFFS_SHA256__INITIAL_SHA256_H[3u]; + self->private_impl.f_h4 = WUFFS_SHA256__INITIAL_SHA256_H[4u]; + self->private_impl.f_h5 = WUFFS_SHA256__INITIAL_SHA256_H[5u]; + self->private_impl.f_h6 = WUFFS_SHA256__INITIAL_SHA256_H[6u]; + self->private_impl.f_h7 = WUFFS_SHA256__INITIAL_SHA256_H[7u]; + } + v_new_lmu = ((uint64_t)(self->private_impl.f_length_modulo_u64 + ((uint64_t)(a_x.len)))); + self->private_impl.f_length_overflows_u64 = ((v_new_lmu < self->private_impl.f_length_modulo_u64) || self->private_impl.f_length_overflows_u64); + self->private_impl.f_length_modulo_u64 = v_new_lmu; + if (self->private_impl.f_buf_len != 0u) { + while (self->private_impl.f_buf_len < 64u) { + if (((uint64_t)(a_x.len)) <= 0u) { + return wuffs_base__make_empty_struct(); } - self->private_impl.f_filter_distance = 2u; - } - } else if (self->private_impl.f_color_type == 2u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 2147485832u; - self->private_impl.f_src_pixfmt = 2684356744u; - self->private_impl.f_filter_distance = 3u; - } else if (self->private_impl.f_depth == 16u) { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - self->private_impl.f_filter_distance = 6u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } - } else if (self->private_impl.f_color_type == 3u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 2198077448u; - self->private_impl.f_src_pixfmt = 2198077448u; - self->private_impl.f_filter_distance = 1u; - } - } else if (self->private_impl.f_color_type == 4u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 2164295816u; - self->private_impl.f_src_pixfmt = 2164295816u; - self->private_impl.f_filter_distance = 2u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } else if (self->private_impl.f_depth == 16u) { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - self->private_impl.f_filter_distance = 4u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } - } else if (self->private_impl.f_color_type == 6u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 2164295816u; - self->private_impl.f_src_pixfmt = 2701166728u; - self->private_impl.f_filter_distance = 4u; - } else if (self->private_impl.f_depth == 16u) { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - self->private_impl.f_filter_distance = 8u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); + self->private_impl.f_buf_data[self->private_impl.f_buf_len] = a_x.ptr[0u]; + self->private_impl.f_buf_len += 1u; + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } + self->private_impl.f_buf_len = 0u; + wuffs_sha256__hasher__up(self, wuffs_base__make_slice_u8(self->private_impl.f_buf_data, 64)); } + wuffs_sha256__hasher__up(self, a_x); return wuffs_base__make_empty_struct(); } -// -------- func png.decoder.calculate_bytes_per_row +// -------- func sha256.hasher.update_bitvec256 WUFFS_BASE__GENERATED_C_CODE -static uint64_t -wuffs_png__decoder__calculate_bytes_per_row( - const wuffs_png__decoder* self, - uint32_t a_width) { - uint64_t v_bytes_per_channel = 0; - - if (self->private_impl.f_depth == 1u) { - return ((uint64_t)(((a_width + 7u) / 8u))); - } else if (self->private_impl.f_depth == 2u) { - return ((uint64_t)(((a_width + 3u) / 4u))); - } else if (self->private_impl.f_depth == 4u) { - return ((uint64_t)(((a_width + 1u) / 2u))); +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_sha256__hasher__update_bitvec256( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); } - v_bytes_per_channel = ((uint64_t)((self->private_impl.f_depth >> 3u))); - return (((uint64_t)(a_width)) * v_bytes_per_channel * ((uint64_t)(WUFFS_PNG__NUM_CHANNELS[self->private_impl.f_color_type]))); + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } + + wuffs_sha256__hasher__update(self, a_x); + return wuffs_sha256__hasher__checksum_bitvec256(self); } -// -------- func png.decoder.choose_filter_implementations +// -------- func sha256.hasher.up WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_png__decoder__choose_filter_implementations( - wuffs_png__decoder* self) { - if (self->private_impl.f_filter_distance == 3u) { - self->private_impl.choosy_filter_1 = ( - &wuffs_png__decoder__filter_1_distance_3_fallback); - self->private_impl.choosy_filter_3 = ( - &wuffs_png__decoder__filter_3_distance_3_fallback); - self->private_impl.choosy_filter_4 = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_4_distance_3_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_4_distance_3_x86_sse42 : -#endif - &wuffs_png__decoder__filter_4_distance_3_fallback); - } else if (self->private_impl.f_filter_distance == 4u) { - self->private_impl.choosy_filter_1 = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_1_distance_4_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_1_distance_4_x86_sse42 : -#endif - &wuffs_png__decoder__filter_1_distance_4_fallback); - self->private_impl.choosy_filter_3 = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_3_distance_4_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_3_distance_4_x86_sse42 : -#endif - &wuffs_png__decoder__filter_3_distance_4_fallback); - self->private_impl.choosy_filter_4 = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_4_distance_4_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_4_distance_4_x86_sse42 : -#endif - &wuffs_png__decoder__filter_4_distance_4_fallback); +wuffs_sha256__hasher__up( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x) { + wuffs_base__slice_u8 v_p = {0}; + uint32_t v_w[64] = {0}; + uint32_t v_w2 = 0; + uint32_t v_w15 = 0; + uint32_t v_s0 = 0; + uint32_t v_s1 = 0; + uint32_t v_t1 = 0; + uint32_t v_t2 = 0; + uint32_t v_a = 0; + uint32_t v_b = 0; + uint32_t v_c = 0; + uint32_t v_d = 0; + uint32_t v_e = 0; + uint32_t v_f = 0; + uint32_t v_g = 0; + uint32_t v_h = 0; + uint32_t v_i = 0; + uint32_t v_buf_len = 0; + + v_a = self->private_impl.f_h0; + v_b = self->private_impl.f_h1; + v_c = self->private_impl.f_h2; + v_d = self->private_impl.f_h3; + v_e = self->private_impl.f_h4; + v_f = self->private_impl.f_h5; + v_g = self->private_impl.f_h6; + v_h = self->private_impl.f_h7; + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 64; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 64) * 64)); + while (v_p.ptr < i_end0_p) { + v_w[0u] = ((((uint32_t)(v_p.ptr[0u])) << 24u) | + (((uint32_t)(v_p.ptr[1u])) << 16u) | + (((uint32_t)(v_p.ptr[2u])) << 8u) | + ((uint32_t)(v_p.ptr[3u]))); + v_w[1u] = ((((uint32_t)(v_p.ptr[4u])) << 24u) | + (((uint32_t)(v_p.ptr[5u])) << 16u) | + (((uint32_t)(v_p.ptr[6u])) << 8u) | + ((uint32_t)(v_p.ptr[7u]))); + v_w[2u] = ((((uint32_t)(v_p.ptr[8u])) << 24u) | + (((uint32_t)(v_p.ptr[9u])) << 16u) | + (((uint32_t)(v_p.ptr[10u])) << 8u) | + ((uint32_t)(v_p.ptr[11u]))); + v_w[3u] = ((((uint32_t)(v_p.ptr[12u])) << 24u) | + (((uint32_t)(v_p.ptr[13u])) << 16u) | + (((uint32_t)(v_p.ptr[14u])) << 8u) | + ((uint32_t)(v_p.ptr[15u]))); + v_w[4u] = ((((uint32_t)(v_p.ptr[16u])) << 24u) | + (((uint32_t)(v_p.ptr[17u])) << 16u) | + (((uint32_t)(v_p.ptr[18u])) << 8u) | + ((uint32_t)(v_p.ptr[19u]))); + v_w[5u] = ((((uint32_t)(v_p.ptr[20u])) << 24u) | + (((uint32_t)(v_p.ptr[21u])) << 16u) | + (((uint32_t)(v_p.ptr[22u])) << 8u) | + ((uint32_t)(v_p.ptr[23u]))); + v_w[6u] = ((((uint32_t)(v_p.ptr[24u])) << 24u) | + (((uint32_t)(v_p.ptr[25u])) << 16u) | + (((uint32_t)(v_p.ptr[26u])) << 8u) | + ((uint32_t)(v_p.ptr[27u]))); + v_w[7u] = ((((uint32_t)(v_p.ptr[28u])) << 24u) | + (((uint32_t)(v_p.ptr[29u])) << 16u) | + (((uint32_t)(v_p.ptr[30u])) << 8u) | + ((uint32_t)(v_p.ptr[31u]))); + v_w[8u] = ((((uint32_t)(v_p.ptr[32u])) << 24u) | + (((uint32_t)(v_p.ptr[33u])) << 16u) | + (((uint32_t)(v_p.ptr[34u])) << 8u) | + ((uint32_t)(v_p.ptr[35u]))); + v_w[9u] = ((((uint32_t)(v_p.ptr[36u])) << 24u) | + (((uint32_t)(v_p.ptr[37u])) << 16u) | + (((uint32_t)(v_p.ptr[38u])) << 8u) | + ((uint32_t)(v_p.ptr[39u]))); + v_w[10u] = ((((uint32_t)(v_p.ptr[40u])) << 24u) | + (((uint32_t)(v_p.ptr[41u])) << 16u) | + (((uint32_t)(v_p.ptr[42u])) << 8u) | + ((uint32_t)(v_p.ptr[43u]))); + v_w[11u] = ((((uint32_t)(v_p.ptr[44u])) << 24u) | + (((uint32_t)(v_p.ptr[45u])) << 16u) | + (((uint32_t)(v_p.ptr[46u])) << 8u) | + ((uint32_t)(v_p.ptr[47u]))); + v_w[12u] = ((((uint32_t)(v_p.ptr[48u])) << 24u) | + (((uint32_t)(v_p.ptr[49u])) << 16u) | + (((uint32_t)(v_p.ptr[50u])) << 8u) | + ((uint32_t)(v_p.ptr[51u]))); + v_w[13u] = ((((uint32_t)(v_p.ptr[52u])) << 24u) | + (((uint32_t)(v_p.ptr[53u])) << 16u) | + (((uint32_t)(v_p.ptr[54u])) << 8u) | + ((uint32_t)(v_p.ptr[55u]))); + v_w[14u] = ((((uint32_t)(v_p.ptr[56u])) << 24u) | + (((uint32_t)(v_p.ptr[57u])) << 16u) | + (((uint32_t)(v_p.ptr[58u])) << 8u) | + ((uint32_t)(v_p.ptr[59u]))); + v_w[15u] = ((((uint32_t)(v_p.ptr[60u])) << 24u) | + (((uint32_t)(v_p.ptr[61u])) << 16u) | + (((uint32_t)(v_p.ptr[62u])) << 8u) | + ((uint32_t)(v_p.ptr[63u]))); + v_i = 16u; + while (v_i < 64u) { + v_w2 = v_w[(v_i - 2u)]; + v_s1 = ((v_w2 >> 10u) ^ (((uint32_t)(v_w2 << 15u)) | (v_w2 >> 17u)) ^ (((uint32_t)(v_w2 << 13u)) | (v_w2 >> 19u))); + v_w15 = v_w[(v_i - 15u)]; + v_s0 = ((v_w15 >> 3u) ^ (((uint32_t)(v_w15 << 25u)) | (v_w15 >> 7u)) ^ (((uint32_t)(v_w15 << 14u)) | (v_w15 >> 18u))); + v_w[v_i] = ((uint32_t)(((uint32_t)(((uint32_t)(v_s1 + v_w[(v_i - 7u)])) + v_s0)) + v_w[(v_i - 16u)])); + v_i += 1u; + } + v_i = 0u; + while (v_i < 64u) { + v_t1 = v_h; + v_t1 += ((((uint32_t)(v_e << 26u)) | (v_e >> 6u)) ^ (((uint32_t)(v_e << 21u)) | (v_e >> 11u)) ^ (((uint32_t)(v_e << 7u)) | (v_e >> 25u))); + v_t1 += ((v_e & v_f) ^ ((4294967295u ^ v_e) & v_g)); + v_t1 += WUFFS_SHA256__K[v_i]; + v_t1 += v_w[v_i]; + v_t2 = ((((uint32_t)(v_a << 30u)) | (v_a >> 2u)) ^ (((uint32_t)(v_a << 19u)) | (v_a >> 13u)) ^ (((uint32_t)(v_a << 10u)) | (v_a >> 22u))); + v_t2 += ((v_a & v_b) ^ (v_a & v_c) ^ (v_b & v_c)); + v_h = v_g; + v_g = v_f; + v_f = v_e; + v_e = ((uint32_t)(v_d + v_t1)); + v_d = v_c; + v_c = v_b; + v_b = v_a; + v_a = ((uint32_t)(v_t1 + v_t2)); + v_i += 1u; + } + v_a += self->private_impl.f_h0; + self->private_impl.f_h0 = v_a; + v_b += self->private_impl.f_h1; + self->private_impl.f_h1 = v_b; + v_c += self->private_impl.f_h2; + self->private_impl.f_h2 = v_c; + v_d += self->private_impl.f_h3; + self->private_impl.f_h3 = v_d; + v_e += self->private_impl.f_h4; + self->private_impl.f_h4 = v_e; + v_f += self->private_impl.f_h5; + self->private_impl.f_h5 = v_f; + v_g += self->private_impl.f_h6; + self->private_impl.f_h6 = v_g; + v_h += self->private_impl.f_h7; + self->private_impl.f_h7 = v_h; + v_p.ptr += 64; + } + v_p.len = 1; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end1_p) { + self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; + v_buf_len = ((v_buf_len + 1u) & 63u); + v_p.ptr += 1; + } + v_p.len = 0; } + self->private_impl.f_buf_len = ((uint32_t)((((uint64_t)(a_x.len)) & 63u))); return wuffs_base__make_empty_struct(); } -// -------- func png.decoder.decode_other_chunk +// -------- func sha256.hasher.checksum_bitvec256 WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_other_chunk( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src, - bool a_framy) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_sha256__hasher__checksum_bitvec256( + const wuffs_sha256__hasher* self) { + if (!self) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); } - uint32_t coro_susp_point = self->private_impl.p_decode_other_chunk[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + uint32_t v_buf_len = 0; + uint8_t v_buf_data[64] = {0}; + uint64_t v_length_in_bits = 0; + uint32_t v_w[64] = {0}; + uint32_t v_w2 = 0; + uint32_t v_w15 = 0; + uint32_t v_s0 = 0; + uint32_t v_s1 = 0; + uint32_t v_t1 = 0; + uint32_t v_t2 = 0; + uint32_t v_h0 = 0; + uint32_t v_h1 = 0; + uint32_t v_h2 = 0; + uint32_t v_h3 = 0; + uint32_t v_h4 = 0; + uint32_t v_h5 = 0; + uint32_t v_h6 = 0; + uint32_t v_h7 = 0; + uint32_t v_a = 0; + uint32_t v_b = 0; + uint32_t v_c = 0; + uint32_t v_d = 0; + uint32_t v_e = 0; + uint32_t v_f = 0; + uint32_t v_g = 0; + uint32_t v_h = 0; + uint32_t v_i = 0; + bool v_final_block = false; - if ((self->private_impl.f_chunk_type == 1163152464u) && ! a_framy) { - if (self->private_impl.f_seen_plte) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } else if (self->private_impl.f_color_type == 3u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_png__decoder__decode_plte(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else if ((self->private_impl.f_color_type == 2u) || (self->private_impl.f_color_type == 6u)) { - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_seen_plte = true; - } else if ((self->private_impl.f_chunk_type & 32u) == 0u) { - if (self->private_impl.f_chunk_type != 1413563465u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } + v_i = 0u; + while (v_i < 64u) { + v_buf_data[v_i] = self->private_impl.f_buf_data[v_i]; + v_i += 1u; + } + v_buf_len = (self->private_impl.f_buf_len & 63u); + if (v_buf_len < 56u) { + v_buf_data[v_buf_len] = 128u; + v_buf_len += 1u; + while (v_buf_len < 56u) { + v_buf_data[v_buf_len] = 0u; + v_buf_len += 1u; } - if (self->private_impl.f_chunk_type == 1716082789u) { - if (self->private_impl.f_report_metadata_exif) { - if (self->private_impl.f_seen_exif) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_png__decoder__decode_exif(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_exif = true; - } - } else if ((self->private_impl.f_chunk_type == 1951945833u) || (self->private_impl.f_chunk_type == 1951942004u) || (self->private_impl.f_chunk_type == 1951945850u)) { - if (self->private_impl.f_report_metadata_kvp) { - self->private_impl.f_metadata_flavor = 4u; - self->private_impl.f_metadata_fourcc = 1263947851u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; - } - } else if ( ! a_framy) { - if (self->private_impl.f_chunk_type == 1280598881u) { - if (self->private_impl.f_seen_actl) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_png__decoder__decode_actl(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_actl = true; - } else if (self->private_impl.f_chunk_type == 1297238115u) { - if (self->private_impl.f_report_metadata_chrm) { - if (self->private_impl.f_seen_chrm) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - status = wuffs_png__decoder__decode_chrm(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_chrm = true; - } - } else if (self->private_impl.f_chunk_type == 1280598886u) { - if (self->private_impl.f_seen_fctl) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - status = wuffs_png__decoder__decode_fctl(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_fctl = true; - } else if (self->private_impl.f_chunk_type == 1095582055u) { - if (self->private_impl.f_report_metadata_gama) { - if (self->private_impl.f_seen_gama) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - status = wuffs_png__decoder__decode_gama(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_gama = true; - } - } else if (self->private_impl.f_chunk_type == 1346585449u) { - if (self->private_impl.f_report_metadata_iccp) { - if (self->private_impl.f_seen_iccp) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - status = wuffs_png__decoder__decode_iccp(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_iccp = true; - } - } else if (self->private_impl.f_chunk_type == 1111970419u) { - if (self->private_impl.f_report_metadata_srgb) { - if (self->private_impl.f_seen_srgb) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - status = wuffs_png__decoder__decode_srgb(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_srgb = true; - } - } else if (self->private_impl.f_chunk_type == 1397641844u) { - if (self->private_impl.f_seen_trns || (self->private_impl.f_color_type > 3u) || ((self->private_impl.f_color_type == 3u) && ! self->private_impl.f_seen_plte)) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_png__decoder__decode_trns(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_trns = true; - } + v_final_block = true; + } else { + v_buf_data[v_buf_len] = 128u; + v_buf_len += 1u; + while (v_buf_len < 64u) { + v_buf_data[v_buf_len] = 0u; + v_buf_len += 1u; + } + } + v_h0 = self->private_impl.f_h0; + v_a = v_h0; + v_h1 = self->private_impl.f_h1; + v_b = v_h1; + v_h2 = self->private_impl.f_h2; + v_c = v_h2; + v_h3 = self->private_impl.f_h3; + v_d = v_h3; + v_h4 = self->private_impl.f_h4; + v_e = v_h4; + v_h5 = self->private_impl.f_h5; + v_f = v_h5; + v_h6 = self->private_impl.f_h6; + v_g = v_h6; + v_h7 = self->private_impl.f_h7; + v_h = v_h7; + while (true) { + if (v_final_block) { + v_length_in_bits = ((uint64_t)(self->private_impl.f_length_modulo_u64 * 8u)); + v_buf_data[56u] = ((uint8_t)((v_length_in_bits >> 56u))); + v_buf_data[57u] = ((uint8_t)((v_length_in_bits >> 48u))); + v_buf_data[58u] = ((uint8_t)((v_length_in_bits >> 40u))); + v_buf_data[59u] = ((uint8_t)((v_length_in_bits >> 32u))); + v_buf_data[60u] = ((uint8_t)((v_length_in_bits >> 24u))); + v_buf_data[61u] = ((uint8_t)((v_length_in_bits >> 16u))); + v_buf_data[62u] = ((uint8_t)((v_length_in_bits >> 8u))); + v_buf_data[63u] = ((uint8_t)(v_length_in_bits)); + } + v_w[0u] = ((((uint32_t)(v_buf_data[0u])) << 24u) | + (((uint32_t)(v_buf_data[1u])) << 16u) | + (((uint32_t)(v_buf_data[2u])) << 8u) | + ((uint32_t)(v_buf_data[3u]))); + v_w[1u] = ((((uint32_t)(v_buf_data[4u])) << 24u) | + (((uint32_t)(v_buf_data[5u])) << 16u) | + (((uint32_t)(v_buf_data[6u])) << 8u) | + ((uint32_t)(v_buf_data[7u]))); + v_w[2u] = ((((uint32_t)(v_buf_data[8u])) << 24u) | + (((uint32_t)(v_buf_data[9u])) << 16u) | + (((uint32_t)(v_buf_data[10u])) << 8u) | + ((uint32_t)(v_buf_data[11u]))); + v_w[3u] = ((((uint32_t)(v_buf_data[12u])) << 24u) | + (((uint32_t)(v_buf_data[13u])) << 16u) | + (((uint32_t)(v_buf_data[14u])) << 8u) | + ((uint32_t)(v_buf_data[15u]))); + v_w[4u] = ((((uint32_t)(v_buf_data[16u])) << 24u) | + (((uint32_t)(v_buf_data[17u])) << 16u) | + (((uint32_t)(v_buf_data[18u])) << 8u) | + ((uint32_t)(v_buf_data[19u]))); + v_w[5u] = ((((uint32_t)(v_buf_data[20u])) << 24u) | + (((uint32_t)(v_buf_data[21u])) << 16u) | + (((uint32_t)(v_buf_data[22u])) << 8u) | + ((uint32_t)(v_buf_data[23u]))); + v_w[6u] = ((((uint32_t)(v_buf_data[24u])) << 24u) | + (((uint32_t)(v_buf_data[25u])) << 16u) | + (((uint32_t)(v_buf_data[26u])) << 8u) | + ((uint32_t)(v_buf_data[27u]))); + v_w[7u] = ((((uint32_t)(v_buf_data[28u])) << 24u) | + (((uint32_t)(v_buf_data[29u])) << 16u) | + (((uint32_t)(v_buf_data[30u])) << 8u) | + ((uint32_t)(v_buf_data[31u]))); + v_w[8u] = ((((uint32_t)(v_buf_data[32u])) << 24u) | + (((uint32_t)(v_buf_data[33u])) << 16u) | + (((uint32_t)(v_buf_data[34u])) << 8u) | + ((uint32_t)(v_buf_data[35u]))); + v_w[9u] = ((((uint32_t)(v_buf_data[36u])) << 24u) | + (((uint32_t)(v_buf_data[37u])) << 16u) | + (((uint32_t)(v_buf_data[38u])) << 8u) | + ((uint32_t)(v_buf_data[39u]))); + v_w[10u] = ((((uint32_t)(v_buf_data[40u])) << 24u) | + (((uint32_t)(v_buf_data[41u])) << 16u) | + (((uint32_t)(v_buf_data[42u])) << 8u) | + ((uint32_t)(v_buf_data[43u]))); + v_w[11u] = ((((uint32_t)(v_buf_data[44u])) << 24u) | + (((uint32_t)(v_buf_data[45u])) << 16u) | + (((uint32_t)(v_buf_data[46u])) << 8u) | + ((uint32_t)(v_buf_data[47u]))); + v_w[12u] = ((((uint32_t)(v_buf_data[48u])) << 24u) | + (((uint32_t)(v_buf_data[49u])) << 16u) | + (((uint32_t)(v_buf_data[50u])) << 8u) | + ((uint32_t)(v_buf_data[51u]))); + v_w[13u] = ((((uint32_t)(v_buf_data[52u])) << 24u) | + (((uint32_t)(v_buf_data[53u])) << 16u) | + (((uint32_t)(v_buf_data[54u])) << 8u) | + ((uint32_t)(v_buf_data[55u]))); + v_w[14u] = ((((uint32_t)(v_buf_data[56u])) << 24u) | + (((uint32_t)(v_buf_data[57u])) << 16u) | + (((uint32_t)(v_buf_data[58u])) << 8u) | + ((uint32_t)(v_buf_data[59u]))); + v_w[15u] = ((((uint32_t)(v_buf_data[60u])) << 24u) | + (((uint32_t)(v_buf_data[61u])) << 16u) | + (((uint32_t)(v_buf_data[62u])) << 8u) | + ((uint32_t)(v_buf_data[63u]))); + v_i = 16u; + while (v_i < 64u) { + v_w2 = v_w[(v_i - 2u)]; + v_s1 = ((v_w2 >> 10u) ^ (((uint32_t)(v_w2 << 15u)) | (v_w2 >> 17u)) ^ (((uint32_t)(v_w2 << 13u)) | (v_w2 >> 19u))); + v_w15 = v_w[(v_i - 15u)]; + v_s0 = ((v_w15 >> 3u) ^ (((uint32_t)(v_w15 << 25u)) | (v_w15 >> 7u)) ^ (((uint32_t)(v_w15 << 14u)) | (v_w15 >> 18u))); + v_w[v_i] = ((uint32_t)(((uint32_t)(((uint32_t)(v_s1 + v_w[(v_i - 7u)])) + v_s0)) + v_w[(v_i - 16u)])); + v_i += 1u; } - if (self->private_impl.f_metadata_fourcc == 0u) { - self->private_data.s_decode_other_chunk[0].scratch = self->private_impl.f_chunk_length; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (self->private_data.s_decode_other_chunk[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_decode_other_chunk[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_decode_other_chunk[0].scratch; + v_i = 0u; + while (v_i < 64u) { + v_t1 = v_h; + v_t1 += ((((uint32_t)(v_e << 26u)) | (v_e >> 6u)) ^ (((uint32_t)(v_e << 21u)) | (v_e >> 11u)) ^ (((uint32_t)(v_e << 7u)) | (v_e >> 25u))); + v_t1 += ((v_e & v_f) ^ ((4294967295u ^ v_e) & v_g)); + v_t1 += WUFFS_SHA256__K[v_i]; + v_t1 += v_w[v_i]; + v_t2 = ((((uint32_t)(v_a << 30u)) | (v_a >> 2u)) ^ (((uint32_t)(v_a << 19u)) | (v_a >> 13u)) ^ (((uint32_t)(v_a << 10u)) | (v_a >> 22u))); + v_t2 += ((v_a & v_b) ^ (v_a & v_c) ^ (v_b & v_c)); + v_h = v_g; + v_g = v_f; + v_f = v_e; + v_e = ((uint32_t)(v_d + v_t1)); + v_d = v_c; + v_c = v_b; + v_b = v_a; + v_a = ((uint32_t)(v_t1 + v_t2)); + v_i += 1u; + } + v_a += v_h0; + v_b += v_h1; + v_c += v_h2; + v_d += v_h3; + v_e += v_h4; + v_f += v_h5; + v_g += v_h6; + v_h += v_h7; + if (v_final_block) { + break; + } + v_final_block = true; + v_h0 = v_a; + v_h1 = v_b; + v_h2 = v_c; + v_h3 = v_d; + v_h4 = v_e; + v_h5 = v_f; + v_h6 = v_g; + v_h7 = v_h; + v_buf_len = 0u; + while (v_buf_len < 56u) { + v_buf_data[v_buf_len] = 0u; + v_buf_len += 1u; } - - goto ok; - ok: - self->private_impl.p_decode_other_chunk[0] = 0; - goto exit; } + return wuffs_base__utility__make_bitvec256( + (((uint64_t)(v_h)) | (((uint64_t)(v_g)) << 32u)), + (((uint64_t)(v_f)) | (((uint64_t)(v_e)) << 32u)), + (((uint64_t)(v_d)) | (((uint64_t)(v_c)) << 32u)), + (((uint64_t)(v_b)) | (((uint64_t)(v_a)) << 32u))); +} - goto suspend; - suspend: - self->private_impl.p_decode_other_chunk[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) - return status; -} +// ---------------- Status Codes Implementations -// -------- func png.decoder.decode_actl +const char wuffs_tga__error__bad_header[] = "#tga: bad header"; +const char wuffs_tga__error__bad_run_length_encoding[] = "#tga: bad run length encoding"; +const char wuffs_tga__error__truncated_input[] = "#tga: truncated input"; +const char wuffs_tga__error__unsupported_tga_file[] = "#tga: unsupported TGA file"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_actl( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +wuffs_tga__decoder__do_decode_image_config( + wuffs_tga__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_tga__decoder__do_decode_frame_config( + wuffs_tga__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_tga__decoder__do_decode_frame( + wuffs_tga__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_tga__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_tga__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_tga__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_tga__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_tga__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_tga__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_tga__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_tga__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_tga__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_tga__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_tga__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_tga__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_tga__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_tga__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_tga__decoder__initialize( + wuffs_tga__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_tga__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_tga__decoder* +wuffs_tga__decoder__alloc(void) { + wuffs_tga__decoder* x = + (wuffs_tga__decoder*)(calloc(1, sizeof(wuffs_tga__decoder))); + if (!x) { + return NULL; + } + if (wuffs_tga__decoder__initialize( + x, sizeof(wuffs_tga__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; } + return x; +} - uint32_t coro_susp_point = self->private_impl.p_decode_actl[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +size_t +sizeof__wuffs_tga__decoder(void) { + return sizeof(wuffs_tga__decoder); +} - if (self->private_impl.f_chunk_length != 8u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } else if (self->private_impl.f_interlace_pass > 0u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_actl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_actl[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - self->private_impl.f_num_animation_frames_value = t_0; - } - if (self->private_impl.f_num_animation_frames_value == 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_actl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_actl[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } - } - self->private_impl.f_num_animation_loops_value = t_1; - } +// ---------------- Function Implementations - goto ok; - ok: - self->private_impl.p_decode_actl[0] = 0; - goto exit; +// -------- func tga.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_tga__decoder__get_quirk( + const wuffs_tga__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - goto suspend; - suspend: - self->private_impl.p_decode_actl[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + return 0u; +} - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); +// -------- func tga.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__set_quirk( + wuffs_tga__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - return status; + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func png.decoder.decode_chrm +// -------- func tga.decoder.decode_image_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_chrm( - wuffs_png__decoder* self, +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__decode_image_config( + wuffs_tga__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint64_t v_u = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_chrm[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_chunk_length != 32u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - self->private_impl.f_metadata_flavor = 5u; - self->private_impl.f_metadata_fourcc = 1128813133u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - v_u = t_0; - } - self->private_impl.f_metadata_x |= ((16777215u & v_u) << 0u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint64_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } - } - v_u = t_1; - } - self->private_impl.f_metadata_x |= ((16777215u & v_u) << 24u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint64_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); - if (num_bits_2 == 24) { - t_2 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)); - } - } - v_u = t_2; - } - self->private_impl.f_metadata_x |= ((uint64_t)((16777215u & v_u) << 48u)); - self->private_impl.f_metadata_y |= ((16777215u & v_u) >> 16u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint64_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); - } - } - v_u = t_3; - } - self->private_impl.f_metadata_y |= ((16777215u & v_u) << 8u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - uint64_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_4 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); - if (num_bits_4 == 24) { - t_4 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)); - } - } - v_u = t_4; - } - self->private_impl.f_metadata_y |= ((16777215u & v_u) << 32u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - uint64_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_5 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm[0].scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 24) { - t_5 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); - } - } - v_u = t_5; - } - self->private_impl.f_metadata_y |= ((uint64_t)((16777215u & v_u) << 56u)); - self->private_impl.f_metadata_z |= ((16777215u & v_u) >> 8u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - uint64_t t_6; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_6 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm[0].scratch; - uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); - if (num_bits_6 == 24) { - t_6 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_6 += 8u; - *scratch |= ((uint64_t)(num_bits_6)); - } + while (true) { + { + wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; } - v_u = t_6; - } - self->private_impl.f_metadata_z |= ((16777215u & v_u) << 16u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - uint64_t t_7; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_7 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm[0].scratch; - uint32_t num_bits_7 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_7); - if (num_bits_7 == 24) { - t_7 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_7 += 8u; - *scratch |= ((uint64_t)(num_bits_7)); - } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_tga__error__truncated_input); + goto exit; } - v_u = t_7; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - self->private_impl.f_metadata_z |= ((16777215u & v_u) << 40u); - goto ok; ok: - self->private_impl.p_decode_chrm[0] = 0; + self->private_impl.p_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_chrm[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func png.decoder.decode_exif - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_exif( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - if (self->private_impl.f_chunk_length < 4u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_metadata_flavor = 3u; - self->private_impl.f_metadata_fourcc = 1163413830u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - self->private_impl.f_metadata_z = wuffs_base__u64__sat_add(self->private_impl.f_metadata_y, ((uint64_t)(self->private_impl.f_chunk_length))); - self->private_impl.f_chunk_length = 0u; + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - goto ok; - ok: goto exit; exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func png.decoder.decode_fctl +// -------- func tga.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_fctl( - wuffs_png__decoder* self, +wuffs_tga__decoder__do_decode_image_config( + wuffs_tga__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_x0 = 0; - uint32_t v_y0 = 0; - uint32_t v_x1 = 0; - uint32_t v_y1 = 0; + uint32_t v_c32 = 0; + uint32_t v_c5 = 0; + uint32_t v_i = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -55899,309 +69341,577 @@ wuffs_png__decoder__decode_fctl( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_fctl[0]; + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; if (coro_susp_point) { - v_x0 = self->private_data.s_decode_fctl[0].v_x0; - v_x1 = self->private_data.s_decode_fctl[0].v_x1; - v_y1 = self->private_data.s_decode_fctl[0].v_y1; + v_i = self->private_data.s_do_decode_image_config.v_i; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_chunk_length != 26u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); goto exit; } - self->private_impl.f_chunk_length = 0u; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_fctl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_x0 = t_0; + uint8_t t_0 = *iop_a_src++; + self->private_impl.f_header_id_length = t_0; } - if (v_x0 != self->private_impl.f_next_animation_seq_num) { - status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); - goto exit; - } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + self->private_impl.f_header_color_map_type = t_1; + } + if (self->private_impl.f_header_color_map_type > 1u) { + status = wuffs_base__make_status(wuffs_tga__error__bad_header); goto exit; } - self->private_impl.f_next_animation_seq_num += 1u; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_fctl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_x1 = t_1; + uint8_t t_2 = *iop_a_src++; + self->private_impl.f_header_image_type = t_2; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_fctl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); - if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)); - } - } - v_y1 = t_2; + if ((self->private_impl.f_header_image_type == 1u) || + (self->private_impl.f_header_image_type == 2u) || + (self->private_impl.f_header_image_type == 3u) || + (self->private_impl.f_header_image_type == 9u) || + (self->private_impl.f_header_image_type == 10u) || + (self->private_impl.f_header_image_type == 11u)) { + } else { + status = wuffs_base__make_status(wuffs_tga__error__bad_header); + goto exit; } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + uint16_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_3 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + iop_a_src += 2; } else { - self->private_data.s_decode_fctl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_fctl[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch >> 32)); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 8) { + t_3 = ((uint16_t)(*scratch)); break; } num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); + *scratch |= ((uint64_t)(num_bits_3)) << 56; } } - v_x0 = t_3; + self->private_impl.f_header_color_map_first_entry_index = t_3; } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_4 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint16_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_4 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + iop_a_src += 2; } else { - self->private_data.s_decode_fctl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_fctl[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); - if (num_bits_4 == 24) { - t_4 = ((uint32_t)(*scratch >> 32)); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 8) { + t_4 = ((uint16_t)(*scratch)); break; } num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)); + *scratch |= ((uint64_t)(num_bits_4)) << 56; } } - v_y0 = t_4; + self->private_impl.f_header_color_map_length = t_4; } - v_x1 += v_x0; - v_y1 += v_y0; - if ((v_x0 >= v_x1) || - (v_x0 > self->private_impl.f_width) || - (v_x1 > self->private_impl.f_width) || - (v_y0 >= v_y1) || - (v_y0 > self->private_impl.f_height) || - (v_y1 > self->private_impl.f_height)) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + self->private_impl.f_header_color_map_entry_size = t_5; } - self->private_impl.f_frame_rect_x0 = v_x0; - self->private_impl.f_frame_rect_y0 = v_y0; - self->private_impl.f_frame_rect_x1 = v_x1; - self->private_impl.f_frame_rect_y1 = v_y1; + if (self->private_impl.f_header_color_map_type != 0u) { + if ((self->private_impl.f_header_color_map_first_entry_index != 0u) || (self->private_impl.f_header_color_map_length > 256u)) { + status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); + goto exit; + } else if ((self->private_impl.f_header_color_map_entry_size != 15u) && + (self->private_impl.f_header_color_map_entry_size != 16u) && + (self->private_impl.f_header_color_map_entry_size != 24u) && + (self->private_impl.f_header_color_map_entry_size != 32u)) { + status = wuffs_base__make_status(wuffs_tga__error__bad_header); + goto exit; + } + } else { + if ((self->private_impl.f_header_color_map_first_entry_index != 0u) || (self->private_impl.f_header_color_map_length != 0u) || (self->private_impl.f_header_color_map_entry_size != 0u)) { + status = wuffs_base__make_status(wuffs_tga__error__bad_header); + goto exit; + } + } + self->private_data.s_do_decode_image_config.scratch = 4u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_image_config.scratch; { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - uint32_t t_5; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + uint32_t t_6; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_5 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + t_6 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); iop_a_src += 2; } else { - self->private_data.s_decode_fctl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_fctl[0].scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 8) { - t_5 = ((uint32_t)(*scratch >> 48)); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_6; + if (num_bits_6 == 8) { + t_6 = ((uint32_t)(*scratch)); break; } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)) << 56; } } - v_x0 = t_5; + self->private_impl.f_width = t_6; } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - uint32_t t_6; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + uint32_t t_7; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_6 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + t_7 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); iop_a_src += 2; } else { - self->private_data.s_decode_fctl[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_fctl[0].scratch; - uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); - if (num_bits_6 == 8) { - t_6 = ((uint32_t)(*scratch >> 48)); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; + if (num_bits_7 == 8) { + t_7 = ((uint32_t)(*scratch)); break; } - num_bits_6 += 8u; - *scratch |= ((uint64_t)(num_bits_6)); + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)) << 56; } } - v_x1 = t_6; - } - if (v_x1 <= 0u) { - self->private_impl.f_frame_duration = (((uint64_t)(v_x0)) * 7056000u); - } else { - self->private_impl.f_frame_duration = ((((uint64_t)(v_x0)) * 705600000u) / ((uint64_t)(v_x1))); + self->private_impl.f_height = t_7; } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint32_t t_7 = *iop_a_src++; - v_x0 = t_7; + uint8_t t_8 = *iop_a_src++; + self->private_impl.f_header_pixel_depth = t_8; } - if (v_x0 == 0u) { - self->private_impl.f_frame_disposal = 0u; - } else if (v_x0 == 1u) { - self->private_impl.f_frame_disposal = 1u; - } else if (v_x0 == 2u) { - self->private_impl.f_frame_disposal = 2u; - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + if ((self->private_impl.f_header_pixel_depth != 1u) && + (self->private_impl.f_header_pixel_depth != 8u) && + (self->private_impl.f_header_pixel_depth != 15u) && + (self->private_impl.f_header_pixel_depth != 16u) && + (self->private_impl.f_header_pixel_depth != 24u) && + (self->private_impl.f_header_pixel_depth != 32u)) { + status = wuffs_base__make_status(wuffs_tga__error__bad_header); goto exit; } + if (((uint8_t)(self->private_impl.f_header_image_type | 8u)) == 9u) { + self->private_impl.f_scratch_bytes_per_pixel = 1u; + self->private_impl.f_src_bytes_per_pixel = 1u; + self->private_impl.f_src_pixfmt = 2164523016u; + self->private_impl.f_opaque = ((self->private_impl.f_header_color_map_entry_size == 15u) || (self->private_impl.f_header_color_map_entry_size == 24u)); + } else if (((uint8_t)(self->private_impl.f_header_image_type | 8u)) == 10u) { + if ((self->private_impl.f_header_pixel_depth == 15u) || (self->private_impl.f_header_pixel_depth == 16u)) { + self->private_impl.f_scratch_bytes_per_pixel = 4u; + self->private_impl.f_src_bytes_per_pixel = 0u; + self->private_impl.f_src_pixfmt = 2164295816u; + } else if (self->private_impl.f_header_pixel_depth == 24u) { + self->private_impl.f_scratch_bytes_per_pixel = 3u; + self->private_impl.f_src_bytes_per_pixel = 3u; + self->private_impl.f_src_pixfmt = 2147485832u; + self->private_impl.f_opaque = true; + } else if (self->private_impl.f_header_pixel_depth == 32u) { + self->private_impl.f_scratch_bytes_per_pixel = 4u; + self->private_impl.f_src_bytes_per_pixel = 4u; + self->private_impl.f_src_pixfmt = 2164295816u; + } else { + status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); + goto exit; + } + } else { + if (self->private_impl.f_header_pixel_depth == 8u) { + self->private_impl.f_scratch_bytes_per_pixel = 1u; + self->private_impl.f_src_bytes_per_pixel = 1u; + self->private_impl.f_src_pixfmt = 536870920u; + self->private_impl.f_opaque = true; + } else { + status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); + goto exit; + } + } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint32_t t_8 = *iop_a_src++; - v_x0 = t_8; - } - if (v_x0 == 0u) { - self->private_impl.f_frame_overwrite_instead_of_blend = true; - } else if (v_x0 == 1u) { - self->private_impl.f_frame_overwrite_instead_of_blend = false; + uint8_t t_9 = *iop_a_src++; + self->private_impl.f_header_image_descriptor = t_9; + } + if (((uint8_t)(self->private_impl.f_header_image_descriptor & 16u)) != 0u) { + status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); + goto exit; + } + self->private_data.s_do_decode_image_config.scratch = ((uint32_t)(self->private_impl.f_header_id_length)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_image_config.scratch; + if (self->private_impl.f_header_color_map_type != 0u) { + while (v_i < ((uint32_t)(self->private_impl.f_header_color_map_length))) { + if (self->private_impl.f_header_color_map_entry_size == 24u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + uint32_t t_10; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { + t_10 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + iop_a_src += 3; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_10 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_10; + if (num_bits_10 == 16) { + t_10 = ((uint32_t)(*scratch)); + break; + } + num_bits_10 += 8u; + *scratch |= ((uint64_t)(num_bits_10)) << 56; + } + } + v_c32 = t_10; + } + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)((v_c32 >> 0u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)((v_c32 >> 8u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)((v_c32 >> 16u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = 255u; + } else if (self->private_impl.f_header_color_map_entry_size == 32u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + uint32_t t_11; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_11 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_11 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_11; + if (num_bits_11 == 24) { + t_11 = ((uint32_t)(*scratch)); + break; + } + num_bits_11 += 8u; + *scratch |= ((uint64_t)(num_bits_11)) << 56; + } + } + v_c32 = t_11; + } + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)((v_c32 >> 0u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)((v_c32 >> 8u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)((v_c32 >> 16u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = ((uint8_t)((v_c32 >> 24u))); + } else { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); + uint32_t t_12; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_12 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_12 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_12; + if (num_bits_12 == 8) { + t_12 = ((uint32_t)(*scratch)); + break; + } + num_bits_12 += 8u; + *scratch |= ((uint64_t)(num_bits_12)) << 56; + } + } + v_c32 = t_12; + } + v_c5 = (31u & (v_c32 >> 0u)); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 5u)); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 10u)); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = 255u; + } + v_i += 1u; + } + while (v_i < 256u) { + self->private_data.f_src_palette[((v_i * 4u) + 0u)] = 0u; + self->private_data.f_src_palette[((v_i * 4u) + 1u)] = 0u; + self->private_data.f_src_palette[((v_i * 4u) + 2u)] = 0u; + self->private_data.f_src_palette[((v_i * 4u) + 3u)] = 255u; + v_i += 1u; + } + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_src_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + self->private_impl.f_opaque); + } + self->private_impl.f_call_sequence = 32u; + + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_image_config.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func tga.decoder.decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__decode_frame_config( + wuffs_tga__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_tga__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func tga.decoder.do_decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_tga__decoder__do_decode_frame_config( + wuffs_tga__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_tga__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } - if (self->private_impl.f_num_decoded_frame_configs_value == 0u) { - self->private_impl.f_first_rect_x0 = self->private_impl.f_frame_rect_x0; - self->private_impl.f_first_rect_y0 = self->private_impl.f_frame_rect_y0; - self->private_impl.f_first_rect_x1 = self->private_impl.f_frame_rect_x1; - self->private_impl.f_first_rect_y1 = self->private_impl.f_frame_rect_y1; - self->private_impl.f_first_duration = self->private_impl.f_frame_duration; - self->private_impl.f_first_disposal = self->private_impl.f_frame_disposal; - self->private_impl.f_first_overwrite_instead_of_blend = self->private_impl.f_frame_overwrite_instead_of_blend; + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + self->private_impl.f_frame_config_io_position, + 0u, + self->private_impl.f_opaque, + false, + 4278190080u); } + self->private_impl.f_call_sequence = 64u; - goto ok; ok: - self->private_impl.p_decode_fctl[0] = 0; + self->private_impl.p_do_decode_frame_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_fctl[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_fctl[0].v_x0 = v_x0; - self->private_data.s_decode_fctl[0].v_x1 = v_x1; - self->private_data.s_decode_fctl[0].v_y1 = v_y1; + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -56212,15 +69922,114 @@ wuffs_png__decoder__decode_fctl( return status; } -// -------- func png.decoder.decode_gama +// -------- func tga.decoder.decode_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__decode_frame( + wuffs_tga__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_tga__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func tga.decoder.do_decode_frame WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_gama( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { +wuffs_tga__decoder__do_decode_frame( + wuffs_tga__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { wuffs_base__status status = wuffs_base__make_status(NULL); + wuffs_base__status v_status = wuffs_base__make_status(NULL); + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint64_t v_dst_bytes_per_pixel = 0; + uint32_t v_dst_x = 0; + uint32_t v_dst_y = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_dst_start = 0; + wuffs_base__slice_u8 v_src_palette = {0}; + uint64_t v_mark = 0; + uint64_t v_num_pixels64 = 0; + uint32_t v_num_pixels32 = 0; + uint32_t v_lit_length = 0; + uint32_t v_run_length = 0; + uint64_t v_num_dst_bytes = 0; + uint32_t v_num_src_bytes = 0; + uint32_t v_c32 = 0; + uint32_t v_c5 = 0; + const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -56232,516 +70041,739 @@ wuffs_png__decoder__decode_gama( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_gama[0]; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + if (coro_susp_point) { + v_dst_bytes_per_pixel = self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel; + v_dst_x = self->private_data.s_do_decode_frame.v_dst_x; + v_dst_y = self->private_data.s_do_decode_frame.v_dst_y; + v_mark = self->private_data.s_do_decode_frame.v_mark; + v_num_pixels32 = self->private_data.s_do_decode_frame.v_num_pixels32; + v_lit_length = self->private_data.s_do_decode_frame.v_lit_length; + v_run_length = self->private_data.s_do_decode_frame.v_run_length; + v_num_dst_bytes = self->private_data.s_do_decode_frame.v_num_dst_bytes; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_chunk_length != 4u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_tga__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (self->private_impl.f_header_color_map_type != 0u) { + v_src_palette = wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024); + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), + wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), + v_src_palette, + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); goto exit; } - self->private_impl.f_chunk_length = 0u; - self->private_impl.f_metadata_flavor = 5u; - self->private_impl.f_metadata_fourcc = 1195461953u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_gama[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_gama[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint64_t)(*scratch >> 32)); - break; + v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); + if (((uint8_t)(self->private_impl.f_header_image_descriptor & 32u)) == 0u) { + v_dst_y = ((uint32_t)(self->private_impl.f_height - 1u)); + } + if (((uint8_t)(self->private_impl.f_header_image_type & 8u)) == 0u) { + v_lit_length = self->private_impl.f_width; + } + label__resume__continue:; + while (true) { + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); + while (v_dst_y < self->private_impl.f_height) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); + v_dst_start = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); + if (v_dst_start <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_start); + } else { + v_dst = wuffs_base__utility__empty_slice_u8(); + } + while (v_dst_x < self->private_impl.f_width) { + if (self->private_impl.f_src_bytes_per_pixel > 0u) { + if (v_lit_length > 0u) { + v_mark = ((uint64_t)(iop_a_src - io0_a_src)); + v_num_pixels64 = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(self->private_impl.f_src_bytes_per_pixel))); + v_num_pixels32 = ((uint32_t)(wuffs_base__u64__min(v_num_pixels64, ((uint64_t)(v_lit_length))))); + v_num_dst_bytes = (((uint64_t)(v_num_pixels32)) * v_dst_bytes_per_pixel); + v_num_src_bytes = (v_num_pixels32 * self->private_impl.f_src_bytes_per_pixel); + self->private_data.s_do_decode_frame.scratch = v_num_src_bytes; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame.scratch; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + if (v_num_dst_bytes <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_num_dst_bytes); + } else { + v_dst = wuffs_base__utility__empty_slice_u8(); + } + v_dst_x += v_num_pixels32; + v_lit_length = (((uint32_t)(v_lit_length - v_num_pixels32)) & 65535u); + if (v_lit_length > 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + goto label__resume__continue; + } + } else if (v_run_length > 0u) { + v_run_length -= 1u; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_scratch_bytes_per_pixel)); + if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); + } + v_dst_x += 1u; + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + goto label__resume__continue; + } + if (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) < 128u) { + v_lit_length = (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) + 1u); + iop_a_src += 1u; + if ((v_lit_length + v_dst_x) > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); + goto exit; + } + } else { + if (self->private_impl.f_src_bytes_per_pixel == 1u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + goto label__resume__continue; + } + v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); + iop_a_src += 1u; + self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + } else if (self->private_impl.f_src_bytes_per_pixel == 3u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + goto label__resume__continue; + } + v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); + iop_a_src += 1u; + self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[1u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[2u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) < 5u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + goto label__resume__continue; + } + v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); + iop_a_src += 1u; + self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[1u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[2u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[3u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + } + if ((v_run_length + v_dst_x) > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); + goto exit; + } + } + } + } else { + if (v_lit_length > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + goto label__resume__continue; + } + v_c32 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2u; + v_c5 = (31u & (v_c32 >> 0u)); + self->private_data.f_scratch[0u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 5u)); + self->private_data.f_scratch[1u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 10u)); + self->private_data.f_scratch[2u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + self->private_data.f_scratch[3u] = 255u; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, 4)); + if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); + } + v_dst_x += 1u; + v_lit_length -= 1u; + } else if (v_run_length > 0u) { + v_run_length -= 1u; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_scratch_bytes_per_pixel)); + if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); + } + v_dst_x += 1u; + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + goto label__resume__continue; + } + if (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) < 128u) { + v_lit_length = (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) + 1u); + iop_a_src += 1u; + if ((v_lit_length + v_dst_x) > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); + goto exit; + } + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + goto label__resume__continue; + } + v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); + iop_a_src += 1u; + v_c32 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2u; + v_c5 = (31u & (v_c32 >> 0u)); + self->private_data.f_scratch[0u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 5u)); + self->private_data.f_scratch[1u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 10u)); + self->private_data.f_scratch[2u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + self->private_data.f_scratch[3u] = 255u; + if ((v_run_length + v_dst_x) > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); + goto exit; + } + } + } } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); + } + v_dst_x = 0u; + if (((uint8_t)(self->private_impl.f_header_image_descriptor & 32u)) == 0u) { + v_dst_y -= 1u; + } else { + v_dst_y += 1u; + } + if (((uint8_t)(self->private_impl.f_header_image_type & 8u)) == 0u) { + v_lit_length = self->private_impl.f_width; } } - self->private_impl.f_metadata_x = t_0; + break; } - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; + self->private_data.s_do_decode_frame.v_dst_x = v_dst_x; + self->private_data.s_do_decode_frame.v_dst_y = v_dst_y; + self->private_data.s_do_decode_frame.v_mark = v_mark; + self->private_data.s_do_decode_frame.v_num_pixels32 = v_num_pixels32; + self->private_data.s_do_decode_frame.v_lit_length = v_lit_length; + self->private_data.s_do_decode_frame.v_run_length = v_run_length; + self->private_data.s_do_decode_frame.v_num_dst_bytes = v_num_dst_bytes; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func tga.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_tga__decoder__frame_dirty_rect( + const wuffs_tga__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func tga.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_tga__decoder__num_animation_loops( + const wuffs_tga__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func tga.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_tga__decoder__num_decoded_frame_configs( + const wuffs_tga__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func tga.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_tga__decoder__num_decoded_frames( + const wuffs_tga__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func tga.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__restart_frame( + wuffs_tga__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if (a_index != 0u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + self->private_impl.f_frame_config_io_position = a_io_position; + return wuffs_base__make_status(NULL); +} - goto ok; - ok: - self->private_impl.p_decode_gama[0] = 0; - goto exit; +// -------- func tga.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_tga__decoder__set_report_metadata( + wuffs_tga__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func tga.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_tga__decoder__tell_me_more( + wuffs_tga__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - goto suspend; - suspend: - self->private_impl.p_decode_gama[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + goto ok; + ok: goto exit; exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func png.decoder.decode_iccp +// -------- func tga.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_iccp( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_tga__decoder__workbuf_len( + const wuffs_tga__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); } - uint32_t coro_susp_point = self->private_impl.p_decode_iccp[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} - while (true) { - if (self->private_impl.f_chunk_length <= 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c == 0u) { - break; - } - } - if (self->private_impl.f_chunk_length <= 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - if (v_c != 0u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); - goto exit; - } - self->private_impl.f_metadata_is_zlib_compressed = true; - self->private_impl.f_metadata_flavor = 4u; - self->private_impl.f_metadata_fourcc = 1229144912u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) - goto ok; - ok: - self->private_impl.p_decode_iccp[0] = 0; - goto exit; - } +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__VP8) - goto suspend; - suspend: - self->private_impl.p_decode_iccp[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; +// ---------------- Status Codes Implementations - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +// ---------------- Private Consts - return status; -} +// ---------------- Private Initializer Prototypes -// -------- func png.decoder.decode_plte +// ---------------- Private Function Prototypes -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_plte( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +// ---------------- VTables - uint32_t v_num_entries = 0; - uint32_t v_i = 0; - uint32_t v_argb = 0; +// ---------------- Initializer Implementations - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_vp8__placeholder__initialize( + wuffs_vp8__placeholder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - - uint32_t coro_susp_point = self->private_impl.p_decode_plte[0]; - if (coro_susp_point) { - v_num_entries = self->private_data.s_decode_plte[0].v_num_entries; - v_i = self->private_data.s_decode_plte[0].v_i; + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_chunk_length > 768u) || ((self->private_impl.f_chunk_length % 3u) != 0u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - v_num_entries = (((uint32_t)(self->private_impl.f_chunk_length)) / 3u); - self->private_impl.f_chunk_length = 0u; - while (v_i < v_num_entries) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { - t_0 = ((uint32_t)(wuffs_base__peek_u24be__no_bounds_check(iop_a_src))); - iop_a_src += 3; - } else { - self->private_data.s_decode_plte[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_plte[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 16) { - t_0 = ((uint32_t)(*scratch >> 40)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - v_argb = t_0; - } - v_argb |= 4278190080u; - self->private_data.f_src_palette[((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); - self->private_data.f_src_palette[((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); - self->private_data.f_src_palette[((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); - self->private_data.f_src_palette[((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); - v_i += 1u; + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } - while (v_i < 256u) { - self->private_data.f_src_palette[((4u * v_i) + 0u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 1u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 2u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 3u)] = 255u; - v_i += 1u; +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - - goto ok; - ok: - self->private_impl.p_decode_plte[0] = 0; - goto exit; } - goto suspend; - suspend: - self->private_impl.p_decode_plte[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_plte[0].v_num_entries = v_num_entries; - self->private_data.s_decode_plte[0].v_i = v_i; + self->private_impl.magic = WUFFS_BASE__MAGIC; + return wuffs_base__make_status(NULL); +} - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); +wuffs_vp8__placeholder* +wuffs_vp8__placeholder__alloc(void) { + wuffs_vp8__placeholder* x = + (wuffs_vp8__placeholder*)(calloc(1, sizeof(wuffs_vp8__placeholder))); + if (!x) { + return NULL; } - - return status; + if (wuffs_vp8__placeholder__initialize( + x, sizeof(wuffs_vp8__placeholder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; } -// -------- func png.decoder.decode_srgb - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_srgb( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +size_t +sizeof__wuffs_vp8__placeholder(void) { + return sizeof(wuffs_vp8__placeholder); +} - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +// ---------------- Function Implementations - uint32_t coro_susp_point = self->private_impl.p_decode_srgb[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__VP8) - if (self->private_impl.f_chunk_length != 1u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - self->private_impl.f_metadata_flavor = 5u; - self->private_impl.f_metadata_fourcc = 1397901122u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t t_0 = *iop_a_src++; - self->private_impl.f_metadata_x = t_0; - } - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) - goto ok; - ok: - self->private_impl.p_decode_srgb[0] = 0; - goto exit; - } +// ---------------- Status Codes Implementations - goto suspend; - suspend: - self->private_impl.p_decode_srgb[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; +const char wuffs_wbmp__error__bad_header[] = "#wbmp: bad header"; +const char wuffs_wbmp__error__truncated_input[] = "#wbmp: truncated input"; - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +// ---------------- Private Consts - return status; -} +// ---------------- Private Initializer Prototypes -// -------- func png.decoder.decode_trns +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_trns( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +wuffs_wbmp__decoder__do_decode_image_config( + wuffs_wbmp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); - uint32_t v_i = 0; - uint32_t v_n = 0; - uint64_t v_u = 0; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_wbmp__decoder__do_decode_frame_config( + wuffs_wbmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_wbmp__decoder__do_decode_frame( + wuffs_wbmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); - uint32_t coro_susp_point = self->private_impl.p_decode_trns[0]; - if (coro_susp_point) { - v_i = self->private_data.s_decode_trns[0].v_i; - v_n = self->private_data.s_decode_trns[0].v_n; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +// ---------------- VTables - if (self->private_impl.f_color_type == 0u) { - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - if (self->private_impl.f_depth <= 8u) { - self->private_impl.f_dst_pixfmt = 2164295816u; - self->private_impl.f_src_pixfmt = 2164295816u; - } else { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - } - if (self->private_impl.f_chunk_length != 2u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_0 = ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_trns[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_trns[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 8) { - t_0 = ((uint64_t)(*scratch >> 48)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - v_u = t_0; - } - if (self->private_impl.f_depth <= 1u) { - self->private_impl.f_remap_transparency = (((v_u & 1u) * 16777215u) | 4278190080u); - } else if (self->private_impl.f_depth <= 2u) { - self->private_impl.f_remap_transparency = (((v_u & 3u) * 5592405u) | 4278190080u); - } else if (self->private_impl.f_depth <= 4u) { - self->private_impl.f_remap_transparency = (((v_u & 15u) * 1118481u) | 4278190080u); - } else if (self->private_impl.f_depth <= 8u) { - self->private_impl.f_remap_transparency = (((v_u & 255u) * 65793u) | 4278190080u); - } else { - self->private_impl.f_remap_transparency = ((v_u * 4295032833u) | 18446462598732840960u); - } - } else if (self->private_impl.f_color_type == 2u) { - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - if (self->private_impl.f_depth <= 8u) { - self->private_impl.f_dst_pixfmt = 2164295816u; - self->private_impl.f_src_pixfmt = 2164295816u; - } else { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - } - if (self->private_impl.f_chunk_length != 6u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint64_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { - t_1 = ((uint64_t)(wuffs_base__peek_u48be__no_bounds_check(iop_a_src))); - iop_a_src += 6; - } else { - self->private_data.s_decode_trns[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_trns[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 40) { - t_1 = ((uint64_t)(*scratch >> 16)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } - } - v_u = t_1; - } - if (self->private_impl.f_depth <= 8u) { - self->private_impl.f_remap_transparency = ((255u & (v_u >> 0u)) | - (65280u & (v_u >> 8u)) | - (16711680u & (v_u >> 16u)) | - 4278190080u); - } else { - self->private_impl.f_remap_transparency = (v_u | 18446462598732840960u); - } - } else if (self->private_impl.f_color_type == 3u) { - self->private_impl.f_dst_pixfmt = 2164523016u; - self->private_impl.f_src_pixfmt = 2164523016u; - if (self->private_impl.f_chunk_length > 256u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - v_n = ((uint32_t)(self->private_impl.f_chunk_length)); - self->private_impl.f_chunk_length = 0u; - while (v_i < v_n) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - self->private_data.f_src_palette[((4u * v_i) + 3u)] = t_2; - } - v_i += 1u; - } +const wuffs_base__image_decoder__func_ptrs +wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_wbmp__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_wbmp__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_wbmp__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_wbmp__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_wbmp__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_wbmp__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_wbmp__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_wbmp__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_wbmp__decoder__initialize( + wuffs_wbmp__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } + } - goto ok; - ok: - self->private_impl.p_decode_trns[0] = 0; - goto exit; + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_wbmp__decoder* +wuffs_wbmp__decoder__alloc(void) { + wuffs_wbmp__decoder* x = + (wuffs_wbmp__decoder*)(calloc(1, sizeof(wuffs_wbmp__decoder))); + if (!x) { + return NULL; + } + if (wuffs_wbmp__decoder__initialize( + x, sizeof(wuffs_wbmp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; } + return x; +} - goto suspend; - suspend: - self->private_impl.p_decode_trns[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_trns[0].v_i = v_i; - self->private_data.s_decode_trns[0].v_n = v_n; +size_t +sizeof__wuffs_wbmp__decoder(void) { + return sizeof(wuffs_wbmp__decoder); +} - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); +// ---------------- Function Implementations + +// -------- func wbmp.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__get_quirk( + const wuffs_wbmp__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - return status; + return 0u; } -// -------- func png.decoder.decode_frame_config +// -------- func wbmp.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__decode_frame_config( - wuffs_png__decoder* self, - wuffs_base__frame_config* a_dst, +wuffs_wbmp__decoder__set_quirk( + wuffs_wbmp__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func wbmp.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_image_config( + wuffs_wbmp__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); @@ -56757,7 +70789,7 @@ wuffs_png__decoder__decode_frame_config( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { + (self->private_impl.active_coroutine != 1)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -56766,17 +70798,17 @@ wuffs_png__decoder__decode_frame_config( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_png__decoder__do_decode_frame_config(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_image_config(self, a_dst, a_src); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); + status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); goto exit; } status = v_status; @@ -56784,14 +70816,14 @@ wuffs_png__decoder__decode_frame_config( } ok: - self->private_impl.p_decode_frame_config[0] = 0; + self->private_impl.p_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: @@ -56801,17 +70833,19 @@ wuffs_png__decoder__decode_frame_config( return status; } -// -------- func png.decoder.do_decode_frame_config +// -------- func wbmp.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__do_decode_frame_config( - wuffs_png__decoder* self, - wuffs_base__frame_config* a_dst, +wuffs_wbmp__decoder__do_decode_image_config( + wuffs_wbmp__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_checksum_have = 0; + uint8_t v_c8 = 0; + uint32_t v_i = 0; + uint32_t v_p = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -56824,392 +70858,88 @@ wuffs_png__decoder__do_decode_frame_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config[0]; + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + if (coro_susp_point) { + v_i = self->private_data.s_do_decode_image_config.v_i; + v_p = self->private_data.s_do_decode_image_config.v_p; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_call_sequence & 16u) != 0u) { + if (self->private_impl.f_call_sequence != 0u) { status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); goto exit; - } else if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_png__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; - } - } else if (self->private_impl.f_call_sequence == 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_png__decoder__skip_frame(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if (self->private_impl.f_metadata_fourcc != 0u) { - self->private_impl.f_call_sequence = 48u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; } - if (self->private_impl.f_num_decoded_frame_configs_value == 0u) { - self->private_impl.f_frame_rect_x0 = self->private_impl.f_first_rect_x0; - self->private_impl.f_frame_rect_y0 = self->private_impl.f_first_rect_y0; - self->private_impl.f_frame_rect_x1 = self->private_impl.f_first_rect_x1; - self->private_impl.f_frame_rect_y1 = self->private_impl.f_first_rect_y1; - self->private_impl.f_frame_config_io_position = self->private_impl.f_first_config_io_position; - self->private_impl.f_frame_duration = self->private_impl.f_first_duration; - self->private_impl.f_frame_disposal = self->private_impl.f_first_disposal; - self->private_impl.f_frame_overwrite_instead_of_blend = self->private_impl.f_first_overwrite_instead_of_blend; - } else { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_frame_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame_config[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - self->private_impl.f_chunk_length = t_0; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_frame_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame_config[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; - } - } - self->private_impl.f_chunk_type = t_1; - } - if (self->private_impl.f_chunk_type == 1145980233u) { - if (self->private_impl.f_chunk_length != 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_frame_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame_config[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; - if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; - } - } - v_checksum_have = t_2; - } - if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != 2187346606u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else if (self->private_impl.f_chunk_type == 1413571686u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } else if (self->private_impl.f_chunk_type == 1280598886u) { - self->private_impl.f_frame_config_io_position = ((uint64_t)(wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) - 8u)); - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_png__decoder__decode_fctl(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_data.s_do_decode_frame_config[0].scratch = 4u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (self->private_data.s_do_decode_frame_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame_config[0].scratch; - break; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - status = wuffs_png__decoder__decode_other_chunk(self, a_src, true); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - if (self->private_impl.f_metadata_fourcc != 0u) { - self->private_impl.f_call_sequence = 48u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; - } - self->private_data.s_do_decode_frame_config[0].scratch = 4u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - if (self->private_data.s_do_decode_frame_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; + v_i = 0u; + while (v_i < 2u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - iop_a_src += self->private_data.s_do_decode_frame_config[0].scratch; - self->private_impl.f_chunk_length = 0u; + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } - } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - self->private_impl.f_frame_rect_x0, - self->private_impl.f_frame_rect_y0, - self->private_impl.f_frame_rect_x1, - self->private_impl.f_frame_rect_y1), - ((wuffs_base__flicks)(self->private_impl.f_frame_duration)), - ((uint64_t)(self->private_impl.f_num_decoded_frame_configs_value)), - self->private_impl.f_frame_config_io_position, - self->private_impl.f_frame_disposal, - ((self->private_impl.f_color_type <= 3u) && ! self->private_impl.f_seen_trns), - self->private_impl.f_frame_overwrite_instead_of_blend, - 0u); - } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frame_configs_value, 1u); - self->private_impl.f_call_sequence = 64u; - - ok: - self->private_impl.p_do_decode_frame_config[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_do_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func png.decoder.skip_frame - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__skip_frame( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_seq_num = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_skip_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - self->private_impl.f_chunk_type_array[0u] = 0u; - self->private_impl.f_chunk_type_array[1u] = 0u; - self->private_impl.f_chunk_type_array[2u] = 0u; - self->private_impl.f_chunk_type_array[3u] = 0u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_wbmp__error__bad_header); + goto exit; } - self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); - if (self->private_impl.f_chunk_type == 1413563465u) { - if (self->private_impl.f_chunk_type_array[0u] == 102u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_type_array[0u] = 73u; - self->private_impl.f_chunk_type_array[1u] = 68u; - self->private_impl.f_chunk_type_array[2u] = 65u; - self->private_impl.f_chunk_type_array[3u] = 84u; - } else if (self->private_impl.f_chunk_type == 1413571686u) { - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_type_array[0u] = 102u; - self->private_impl.f_chunk_type_array[1u] = 100u; - self->private_impl.f_chunk_type_array[2u] = 65u; - self->private_impl.f_chunk_type_array[3u] = 84u; - if (self->private_impl.f_chunk_length < 4u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 4u; - iop_a_src += 8u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 2u) { + v_p = 0u; + while (true) { { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_skip_frame[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_skip_frame[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_seq_num = t_0; + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; } - if (v_seq_num != self->private_impl.f_next_animation_seq_num) { - status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); - goto exit; - } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + v_p |= ((uint32_t)(((uint8_t)(v_c8 & 127u)))); + if (((uint8_t)(v_c8 >> 7u)) == 0u) { + break; + } else if (v_p > 131071u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); goto exit; } - self->private_impl.f_next_animation_seq_num += 1u; - self->private_data.s_skip_frame[0].scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 4u); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (self->private_data.s_skip_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_skip_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_skip_frame[0].scratch; - self->private_impl.f_chunk_length = 0u; - continue; - } else if (self->private_impl.f_chunk_type_array[0u] != 0u) { - break; - } else if (self->private_impl.f_chunk_type == 1280598886u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; + v_p <<= 7u; } - self->private_data.s_skip_frame[0].scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 12u); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (self->private_data.s_skip_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_skip_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if (v_i == 0u) { + self->private_impl.f_width = v_p; + } else { + self->private_impl.f_height = v_p; } - iop_a_src += self->private_data.s_skip_frame[0].scratch; - self->private_impl.f_chunk_length = 0u; + v_i += 1u; + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + 2198077448u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + true); } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); self->private_impl.f_call_sequence = 32u; + goto ok; ok: - self->private_impl.p_skip_frame[0] = 0; + self->private_impl.p_do_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_skip_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_image_config.v_i = v_i; + self->private_data.s_do_decode_image_config.v_p = v_p; goto exit; exit: @@ -57220,17 +70950,14 @@ wuffs_png__decoder__skip_frame( return status; } -// -------- func png.decoder.decode_frame +// -------- func wbmp.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__decode_frame( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { +wuffs_wbmp__decoder__decode_frame_config( + wuffs_wbmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -57240,12 +70967,12 @@ wuffs_png__decoder__decode_frame( ? wuffs_base__error__disabled_by_previous_error : wuffs_base__error__initialize_not_called); } - if (!a_dst || !a_src) { + if (!a_src) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { + (self->private_impl.active_coroutine != 2)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -57254,22 +70981,17 @@ wuffs_png__decoder__decode_frame( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_png__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); + wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_frame_config(self, a_dst, a_src); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); + status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); goto exit; } status = v_status; @@ -57277,14 +70999,14 @@ wuffs_png__decoder__decode_frame( } ok: - self->private_impl.p_decode_frame[0] = 0; + self->private_impl.p_decode_frame_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; goto exit; exit: @@ -57294,24 +71016,16 @@ wuffs_png__decoder__decode_frame( return status; } -// -------- func png.decoder.do_decode_frame +// -------- func wbmp.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__do_decode_frame( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { +wuffs_wbmp__decoder__do_decode_frame_config( + wuffs_wbmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_seq_num = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t v_pass_width = 0; - uint32_t v_pass_height = 0; - const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -57323,210 +71037,62 @@ wuffs_png__decoder__do_decode_frame( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame[0]; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_call_sequence & 16u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if (self->private_impl.f_call_sequence >= 96u) { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else if (self->private_impl.f_call_sequence != 64u) { + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { if (a_src) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_png__decoder__do_decode_frame_config(self, NULL, a_src); + status = wuffs_wbmp__decoder__do_decode_image_config(self, NULL, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; } if (status.repr) { goto suspend; } - } - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - continue; - } - self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); - if (self->private_impl.f_chunk_type == 1413563465u) { - self->private_impl.f_chunk_type_array[0u] = 73u; - self->private_impl.f_chunk_type_array[1u] = 68u; - self->private_impl.f_chunk_type_array[2u] = 65u; - self->private_impl.f_chunk_type_array[3u] = 84u; - iop_a_src += 8u; - if ( ! self->private_impl.f_ignore_checksum) { - wuffs_base__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); - } - break; - } else if (self->private_impl.f_chunk_type == 1413571686u) { - self->private_impl.f_chunk_type_array[0u] = 102u; - self->private_impl.f_chunk_type_array[1u] = 100u; - self->private_impl.f_chunk_type_array[2u] = 65u; - self->private_impl.f_chunk_type_array[3u] = 84u; - if (self->private_impl.f_chunk_length < 4u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 4u; - iop_a_src += 8u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_frame[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame[0].scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - v_seq_num = t_0; - } - if (v_seq_num != self->private_impl.f_next_animation_seq_num) { - status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); - goto exit; - } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); - goto exit; - } - self->private_impl.f_next_animation_seq_num += 1u; - break; - } else if (self->private_impl.f_chunk_type == 1280598886u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_data.s_do_decode_frame[0].scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 12u); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (self->private_data.s_do_decode_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame[0].scratch; - self->private_impl.f_chunk_length = 0u; - } - if (self->private_impl.f_zlib_is_dirty) { - wuffs_base__ignore_status(wuffs_zlib__decoder__initialize(&self->private_data.f_zlib, - sizeof (wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - if (self->private_impl.f_ignore_checksum) { - wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, 1u, 1u); - } - } - self->private_impl.f_zlib_is_dirty = true; - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), - wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), - wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); goto exit; } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); goto ok; } - self->private_impl.f_workbuf_hist_pos_base = 0u; - while (true) { - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - v_pass_width = (16777215u & ((((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][1u])) + self->private_impl.f_width) >> WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u])); - v_pass_height = (16777215u & ((((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][4u])) + self->private_impl.f_height) >> WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][3u])); - } else { - v_pass_width = (16777215u & ((uint32_t)(self->private_impl.f_frame_rect_x1 - self->private_impl.f_frame_rect_x0))); - v_pass_height = (16777215u & ((uint32_t)(self->private_impl.f_frame_rect_y1 - self->private_impl.f_frame_rect_y0))); - } - if ((v_pass_width > 0u) && (v_pass_height > 0u)) { - self->private_impl.f_pass_bytes_per_row = wuffs_png__decoder__calculate_bytes_per_row(self, v_pass_width); - self->private_impl.f_pass_workbuf_length = (((uint64_t)(v_pass_height)) * (1u + self->private_impl.f_pass_bytes_per_row)); - while (true) { - { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_1 = wuffs_png__decoder__decode_pass(self, a_src, a_workbuf); - v_status = t_1; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - if (wuffs_base__status__is_ok(&v_status)) { - break; - } else if (wuffs_base__status__is_error(&v_status) || ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed))) { - if (self->private_impl.f_workbuf_wi <= ((uint64_t)(a_workbuf.len))) { - wuffs_png__decoder__filter_and_swizzle(self, a_dst, wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_workbuf_wi)); - } - if (v_status.repr == wuffs_base__suspension__short_read) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); - goto exit; - } - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - } - v_status = wuffs_png__decoder__filter_and_swizzle(self, a_dst, a_workbuf); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - self->private_impl.f_workbuf_hist_pos_base += self->private_impl.f_pass_workbuf_length; - } - if ((self->private_impl.f_interlace_pass == 0u) || (self->private_impl.f_interlace_pass >= 7u)) { - break; - } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_interlace_pass += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + self->private_impl.f_frame_config_io_position, + 0u, + true, + false, + 4278190080u); } - wuffs_base__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); - self->private_impl.f_call_sequence = 32u; + self->private_impl.f_call_sequence = 64u; ok: - self->private_impl.p_do_decode_frame[0] = 0; + self->private_impl.p_do_decode_frame_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -57537,338 +71103,217 @@ wuffs_png__decoder__do_decode_frame( return status; } -// -------- func png.decoder.decode_pass +// -------- func wbmp.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_pass( - wuffs_png__decoder* self, +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_frame( + wuffs_wbmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_w = &u_w; - uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint64_t v_w_mark = 0; - uint64_t v_r_mark = 0; - wuffs_base__status v_zlib_status = wuffs_base__make_status(NULL); - uint32_t v_checksum_have = 0; - uint32_t v_checksum_want = 0; - uint32_t v_seq_num = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_pass[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - self->private_impl.f_workbuf_wi = 0u; while (true) { - if ((self->private_impl.f_workbuf_wi > self->private_impl.f_pass_workbuf_length) || (self->private_impl.f_pass_workbuf_length > ((uint64_t)(a_workbuf.len)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); - goto exit; - } { - wuffs_base__io_buffer* o_0_v_w = v_w; - uint8_t *o_0_iop_v_w = iop_v_w; - uint8_t *o_0_io0_v_w = io0_v_w; - uint8_t *o_0_io1_v_w = io1_v_w; - uint8_t *o_0_io2_v_w = io2_v_w; - v_w = wuffs_base__io_writer__set( - &u_w, - &iop_v_w, - &io0_v_w, - &io1_v_w, - &io2_v_w, - wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_workbuf_wi, - self->private_impl.f_pass_workbuf_length), - ((uint64_t)(self->private_impl.f_workbuf_hist_pos_base + self->private_impl.f_workbuf_wi))); - { - const bool o_1_closed_a_src = a_src->meta.closed; - const uint8_t *o_1_io2_a_src = io2_a_src; - wuffs_base__io_reader__limit(&io2_a_src, iop_a_src, - ((uint64_t)(self->private_impl.f_chunk_length))); - if (a_src) { - size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); - a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); - a_src->meta.wi = n; - } - v_w_mark = ((uint64_t)(iop_v_w - io0_v_w)); - v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - u_w.meta.wi = ((size_t)(iop_v_w - u_w.data.ptr)); - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_0 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, v_w, a_src, wuffs_base__utility__empty_slice_u8()); - v_zlib_status = t_0; - iop_v_w = u_w.data.ptr + u_w.meta.wi; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - if ( ! self->private_impl.f_ignore_checksum) { - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__io__since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); - } - wuffs_base__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_base__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_workbuf_wi, wuffs_base__io__count_since(v_w_mark, ((uint64_t)(iop_v_w - io0_v_w)))); - io2_a_src = o_1_io2_a_src; - if (a_src) { - a_src->meta.closed = o_1_closed_a_src; - a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); - } - } - v_w = o_0_v_w; - iop_v_w = o_0_iop_v_w; - io0_v_w = o_0_io0_v_w; - io1_v_w = o_0_io1_v_w; - io2_v_w = o_0_io2_v_w; + wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; } - if (wuffs_base__status__is_ok(&v_zlib_status)) { - if (self->private_impl.f_chunk_length > 0u) { - status = wuffs_base__make_status(wuffs_base__error__too_much_data); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass[0].scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } - } - v_checksum_want = t_1; - } - if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_chunk_type_array[0u] == 73u)) { - v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__utility__empty_slice_u8()); - if (v_checksum_have != v_checksum_want) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - } - break; - } else if (v_zlib_status.repr == wuffs_base__suspension__short_write) { - if ((1u <= self->private_impl.f_interlace_pass) && (self->private_impl.f_interlace_pass <= 6u)) { - break; - } - status = wuffs_base__make_status(wuffs_base__error__too_much_data); + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); goto exit; - } else if (v_zlib_status.repr != wuffs_base__suspension__short_read) { - status = v_zlib_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } else if (self->private_impl.f_chunk_length == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass[0].scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); - if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)); - } - } - v_checksum_want = t_2; - } - if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_chunk_type_array[0u] == 73u)) { - v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__utility__empty_slice_u8()); - if (v_checksum_have != v_checksum_want) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch >> 32)); - break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func wbmp.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_wbmp__decoder__do_decode_frame( + wuffs_wbmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint64_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_x_in_bytes = 0; + uint32_t v_dst_x = 0; + uint32_t v_dst_y = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint8_t v_src[1] = {0}; + uint8_t v_c8 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + if (coro_susp_point) { + v_dst_bytes_per_pixel = self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel; + v_dst_x = self->private_data.s_do_decode_frame.v_dst_x; + v_dst_y = self->private_data.s_do_decode_frame.v_dst_y; + memcpy(v_src, self->private_data.s_do_decode_frame.v_src, sizeof(v_src)); + v_c8 = self->private_data.s_do_decode_frame.v_c8; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_wbmp__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(536870920u), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; + } + v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); + if (self->private_impl.f_width > 0u) { + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (v_dst_y < self->private_impl.f_height) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); + v_dst_x = 0u; + while (v_dst_x < self->private_impl.f_width) { + if ((v_dst_x & 7u) == 0u) { + while (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); + v_dst_x_in_bytes = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); + if (v_dst_x_in_bytes <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_x_in_bytes); } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; } - self->private_impl.f_chunk_length = t_3; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_4 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; + if (((uint8_t)(v_c8 & 128u)) == 0u) { + v_src[0u] = 0u; } else { - self->private_data.s_decode_pass[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; - if (num_bits_4 == 24) { - t_4 = ((uint32_t)(*scratch)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)) << 56; - } - } - self->private_impl.f_chunk_type = t_4; - } - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - if (self->private_impl.f_chunk_type != 1413563465u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if ( ! self->private_impl.f_ignore_checksum) { - wuffs_base__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); - } - } else { - if ((self->private_impl.f_chunk_type != 1413571686u) || (self->private_impl.f_chunk_length < 4u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 4u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - uint32_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_5 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass[0].scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 24) { - t_5 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); - } - } - v_seq_num = t_5; + v_src[0u] = 255u; } - if (v_seq_num != self->private_impl.f_next_animation_seq_num) { - status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); - goto exit; - } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); - goto exit; + v_c8 = ((uint8_t)((((uint32_t)(v_c8)) << 1u))); + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__utility__empty_slice_u8(), wuffs_base__make_slice_u8(v_src, 1)); + if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); } - self->private_impl.f_next_animation_seq_num += 1u; + v_dst_x += 1u; } - continue; - } else if (((uint64_t)(io2_a_src - iop_a_src)) > 0u) { - status = wuffs_base__make_status(wuffs_png__error__internal_error_zlib_decoder_did_not_exhaust_its_input); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); - } - if (self->private_impl.f_workbuf_wi != self->private_impl.f_pass_workbuf_length) { - status = wuffs_base__make_status(wuffs_base__error__not_enough_data); - goto exit; - } else if (0u < ((uint64_t)(a_workbuf.len))) { - if (a_workbuf.ptr[0u] == 4u) { - a_workbuf.ptr[0u] = 1u; + v_dst_y += 1u; } } + self->private_impl.f_call_sequence = 96u; ok: - self->private_impl.p_decode_pass[0] = 0; + self->private_impl.p_do_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_pass[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; + self->private_data.s_do_decode_frame.v_dst_x = v_dst_x; + self->private_data.s_do_decode_frame.v_dst_y = v_dst_y; + memcpy(self->private_data.s_do_decode_frame.v_src, v_src, sizeof(v_src)); + self->private_data.s_do_decode_frame.v_c8 = v_c8; goto exit; exit: @@ -57879,12 +71324,12 @@ wuffs_png__decoder__decode_pass( return status; } -// -------- func png.decoder.frame_dirty_rect +// -------- func wbmp.decoder.frame_dirty_rect WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_png__decoder__frame_dirty_rect( - const wuffs_png__decoder* self) { +wuffs_wbmp__decoder__frame_dirty_rect( + const wuffs_wbmp__decoder* self) { if (!self) { return wuffs_base__utility__empty_rect_ie_u32(); } @@ -57894,18 +71339,18 @@ wuffs_png__decoder__frame_dirty_rect( } return wuffs_base__utility__make_rect_ie_u32( - self->private_impl.f_frame_rect_x0, - self->private_impl.f_frame_rect_y0, - self->private_impl.f_frame_rect_x1, - self->private_impl.f_frame_rect_y1); + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); } -// -------- func png.decoder.num_animation_loops +// -------- func wbmp.decoder.num_animation_loops WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_png__decoder__num_animation_loops( - const wuffs_png__decoder* self) { +wuffs_wbmp__decoder__num_animation_loops( + const wuffs_wbmp__decoder* self) { if (!self) { return 0; } @@ -57914,15 +71359,15 @@ wuffs_png__decoder__num_animation_loops( return 0; } - return self->private_impl.f_num_animation_loops_value; + return 0u; } -// -------- func png.decoder.num_decoded_frame_configs +// -------- func wbmp.decoder.num_decoded_frame_configs WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_png__decoder__num_decoded_frame_configs( - const wuffs_png__decoder* self) { +wuffs_wbmp__decoder__num_decoded_frame_configs( + const wuffs_wbmp__decoder* self) { if (!self) { return 0; } @@ -57931,15 +71376,18 @@ wuffs_png__decoder__num_decoded_frame_configs( return 0; } - return ((uint64_t)(self->private_impl.f_num_decoded_frame_configs_value)); + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; } -// -------- func png.decoder.num_decoded_frames +// -------- func wbmp.decoder.num_decoded_frames WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_png__decoder__num_decoded_frames( - const wuffs_png__decoder* self) { +wuffs_wbmp__decoder__num_decoded_frames( + const wuffs_wbmp__decoder* self) { if (!self) { return 0; } @@ -57948,15 +71396,18 @@ wuffs_png__decoder__num_decoded_frames( return 0; } - return ((uint64_t)(self->private_impl.f_num_decoded_frames_value)); + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; } -// -------- func png.decoder.restart_frame +// -------- func wbmp.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__restart_frame( - wuffs_png__decoder* self, +wuffs_wbmp__decoder__restart_frame( + wuffs_wbmp__decoder* self, uint64_t a_index, uint64_t a_io_position) { if (!self) { @@ -57971,154 +71422,514 @@ wuffs_png__decoder__restart_frame( if (self->private_impl.f_call_sequence < 32u) { return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } else if ((a_index >= ((uint64_t)(self->private_impl.f_num_animation_frames_value))) || ((a_index == 0u) && (a_io_position != self->private_impl.f_first_config_io_position))) { + } + if (a_index != 0u) { return wuffs_base__make_status(wuffs_base__error__bad_argument); } self->private_impl.f_call_sequence = 40u; - if (self->private_impl.f_interlace_pass >= 1u) { - self->private_impl.f_interlace_pass = 1u; - } self->private_impl.f_frame_config_io_position = a_io_position; - self->private_impl.f_num_decoded_frame_configs_value = ((uint32_t)(a_index)); - self->private_impl.f_num_decoded_frames_value = self->private_impl.f_num_decoded_frame_configs_value; return wuffs_base__make_status(NULL); } -// -------- func png.decoder.set_report_metadata +// -------- func wbmp.decoder.set_report_metadata WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_png__decoder__set_report_metadata( - wuffs_png__decoder* self, +wuffs_wbmp__decoder__set_report_metadata( + wuffs_wbmp__decoder* self, uint32_t a_fourcc, bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func wbmp.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__tell_me_more( + wuffs_wbmp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { if (!self) { - return wuffs_base__make_empty_struct(); + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - if (a_fourcc == 1128813133u) { - self->private_impl.f_report_metadata_chrm = a_report; - } else if (a_fourcc == 1163413830u) { - self->private_impl.f_report_metadata_exif = a_report; - } else if (a_fourcc == 1195461953u) { - self->private_impl.f_report_metadata_gama = a_report; - } else if (a_fourcc == 1229144912u) { - self->private_impl.f_report_metadata_iccp = a_report; - } else if (a_fourcc == 1263947808u) { - self->private_impl.f_report_metadata_kvp = a_report; - } else if (a_fourcc == 1397901122u) { - self->private_impl.f_report_metadata_srgb = a_report; + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func wbmp.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_wbmp__decoder__workbuf_len( + const wuffs_wbmp__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) + +// ---------------- Status Codes Implementations + +const char wuffs_webp__error__bad_huffman_code_over_subscribed[] = "#webp: bad Huffman code (over-subscribed)"; +const char wuffs_webp__error__bad_huffman_code_under_subscribed[] = "#webp: bad Huffman code (under-subscribed)"; +const char wuffs_webp__error__bad_huffman_code[] = "#webp: bad Huffman code"; +const char wuffs_webp__error__bad_back_reference[] = "#webp: bad back-reference"; +const char wuffs_webp__error__bad_color_cache[] = "#webp: bad color cache"; +const char wuffs_webp__error__bad_header[] = "#webp: bad header"; +const char wuffs_webp__error__bad_transform[] = "#webp: bad transform"; +const char wuffs_webp__error__short_chunk[] = "#webp: short chunk"; +const char wuffs_webp__error__truncated_input[] = "#webp: truncated input"; +const char wuffs_webp__error__unsupported_number_of_huffman_groups[] = "#webp: unsupported number of Huffman groups"; +const char wuffs_webp__error__unsupported_transform_after_color_indexing_transform[] = "#webp: unsupported transform after color indexing transform"; +const char wuffs_webp__error__unsupported_webp_file[] = "#webp: unsupported WebP file"; +const char wuffs_webp__error__internal_error_inconsistent_huffman_code[] = "#webp: internal error: inconsistent Huffman code"; +const char wuffs_webp__error__internal_error_inconsistent_dst_buffer[] = "#webp: internal error: inconsistent dst buffer"; +const char wuffs_webp__error__internal_error_inconsistent_n_bits[] = "#webp: internal error: inconsistent n_bits"; + +// ---------------- Private Consts + +static const uint8_t +WUFFS_WEBP__CODE_LENGTH_CODE_ORDER[19] WUFFS_BASE__POTENTIALLY_UNUSED = { + 17u, 18u, 0u, 1u, 2u, 3u, 4u, 5u, + 16u, 6u, 7u, 8u, 9u, 10u, 11u, 12u, + 13u, 14u, 15u, +}; + +static const uint8_t +WUFFS_WEBP__REPEAT_N_BITS[4] WUFFS_BASE__POTENTIALLY_UNUSED = { + 2u, 3u, 7u, 0u, +}; + +static const uint8_t +WUFFS_WEBP__REPEAT_COUNTS[4] WUFFS_BASE__POTENTIALLY_UNUSED = { + 3u, 3u, 11u, 0u, +}; + +static const uint16_t +WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[5] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1612u, 0u, 511u, 1022u, 1533u, +}; + +static const uint8_t +WUFFS_WEBP__DISTANCE_MAP[120] WUFFS_BASE__POTENTIALLY_UNUSED = { + 24u, 7u, 23u, 25u, 40u, 6u, 39u, 41u, + 22u, 26u, 38u, 42u, 56u, 5u, 55u, 57u, + 21u, 27u, 54u, 58u, 37u, 43u, 72u, 4u, + 71u, 73u, 20u, 28u, 53u, 59u, 70u, 74u, + 36u, 44u, 88u, 69u, 75u, 52u, 60u, 3u, + 87u, 89u, 19u, 29u, 86u, 90u, 35u, 45u, + 68u, 76u, 85u, 91u, 51u, 61u, 104u, 2u, + 103u, 105u, 18u, 30u, 102u, 106u, 34u, 46u, + 84u, 92u, 67u, 77u, 101u, 107u, 50u, 62u, + 120u, 1u, 119u, 121u, 83u, 93u, 17u, 31u, + 100u, 108u, 66u, 78u, 118u, 122u, 33u, 47u, + 117u, 123u, 49u, 63u, 99u, 109u, 82u, 94u, + 0u, 116u, 124u, 65u, 79u, 16u, 32u, 98u, + 110u, 48u, 115u, 125u, 81u, 95u, 64u, 114u, + 126u, 97u, 111u, 80u, 113u, 127u, 96u, 112u, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_groups( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_n_huffman_groups); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_tree( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_hg, + uint32_t a_ht); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_tree_simple( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_hg, + uint32_t a_ht); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_code_length_code_lengths( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_code_lengths_huffman_nodes( + wuffs_webp__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_huffman_nodes( + wuffs_webp__decoder* self, + uint32_t a_hg, + uint32_t a_ht); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_code_lengths( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_pixels_slow( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_dst, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + uint32_t a_height, + wuffs_base__slice_u8 a_tile_data, + uint32_t a_tile_size_log2); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_predictor( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix, + wuffs_base__slice_u8 a_tile_data); + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_webp__decoder__absolute_difference( + const wuffs_webp__decoder* self, + uint32_t a_a, + uint32_t a_b); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_webp__decoder__mode12( + const wuffs_webp__decoder* self, + uint8_t a_l, + uint8_t a_t, + uint8_t a_tl); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_webp__decoder__mode13( + const wuffs_webp__decoder* self, + uint8_t a_l, + uint8_t a_t, + uint8_t a_tl); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_cross_color( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix, + wuffs_base__slice_u8 a_tile_data); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_subtract_green( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_color_indexing( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config( + wuffs_webp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config_limited( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config_limited_vp8l( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_frame_config( + wuffs_webp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_frame( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_transform( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_color_cache_parameters( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_hg_table( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_pixels( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_dst, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + uint32_t a_height, + wuffs_base__slice_u8 a_tile_data, + uint32_t a_tile_size_log2); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__swizzle( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_src, + wuffs_base__pixel_blend a_blend); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_webp__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_webp__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_webp__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_webp__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_webp__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_webp__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_webp__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_webp__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_webp__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_webp__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_webp__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_webp__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_webp__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_webp__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_webp__decoder__initialize( + wuffs_webp__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_webp__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_webp__decoder* +wuffs_webp__decoder__alloc(void) { + wuffs_webp__decoder* x = + (wuffs_webp__decoder*)(calloc(1, sizeof(wuffs_webp__decoder))); + if (!x) { + return NULL; } - return wuffs_base__make_empty_struct(); + if (wuffs_webp__decoder__initialize( + x, sizeof(wuffs_webp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; } -// -------- func png.decoder.tell_me_more +size_t +sizeof__wuffs_webp__decoder(void) { + return sizeof(wuffs_webp__decoder); +} + +// ---------------- Function Implementations + +// -------- func webp.decoder.decode_huffman_groups WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__tell_me_more( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_groups( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_n_huffman_groups) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_hg = 0; + uint32_t v_ht = 0; - uint32_t coro_susp_point = self->private_impl.p_tell_me_more[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_groups; + if (coro_susp_point) { + v_hg = self->private_data.s_decode_huffman_groups.v_hg; + v_ht = self->private_data.s_decode_huffman_groups.v_ht; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - while (true) { - { - wuffs_base__status t_0 = wuffs_png__decoder__do_tell_me_more(self, a_dst, a_minfo, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); - goto exit; + v_hg = 0u; + while (v_hg < a_n_huffman_groups) { + v_ht = 0u; + while (v_ht < 5u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_webp__decoder__decode_huffman_tree(self, a_src, v_hg, v_ht); + if (status.repr) { + goto suspend; + } + v_ht += 1u; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + v_hg += 1u; } + goto ok; ok: - self->private_impl.p_tell_me_more[0] = 0; + self->private_impl.p_decode_huffman_groups = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_tell_me_more[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; + self->private_impl.p_decode_huffman_groups = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_huffman_groups.v_hg = v_hg; + self->private_data.s_decode_huffman_groups.v_ht = v_ht; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } return status; } -// -------- func png.decoder.do_tell_me_more +// -------- func webp.decoder.decode_huffman_tree WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__do_tell_me_more( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { +wuffs_webp__decoder__decode_huffman_tree( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_hg, + uint32_t a_ht) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint16_t v_c2 = 0; - wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_w = &u_w; - uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint64_t v_num_written = 0; - uint64_t v_w_mark = 0; - uint64_t v_r_mark = 0; - wuffs_base__status v_zlib_status = wuffs_base__make_status(NULL); + uint8_t v_c8 = 0; + uint32_t v_use_simple = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -58130,462 +71941,105 @@ wuffs_png__decoder__do_tell_me_more( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_tell_me_more[0]; - if (coro_susp_point) { - v_zlib_status = self->private_data.s_do_tell_me_more[0].v_zlib_status; - } + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_tree; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_call_sequence & 16u) == 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } - if (self->private_impl.f_metadata_fourcc == 0u) { - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; + if (a_ht >= 4u) { + self->private_impl.f_ht_n_symbols = 40u; + } else if (a_ht > 0u) { + self->private_impl.f_ht_n_symbols = 256u; + } else if (self->private_impl.f_color_cache_bits == 0u) { + self->private_impl.f_ht_n_symbols = 280u; + } else { + self->private_impl.f_ht_n_symbols = (280u + (((uint32_t)(1u)) << self->private_impl.f_color_cache_bits)); } - do { - if (self->private_impl.f_metadata_flavor == 3u) { - while (true) { - if (wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) != self->private_impl.f_metadata_y) { - status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); - goto exit; - } else if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - self->private_impl.f_metadata_flavor, - self->private_impl.f_metadata_fourcc, - self->private_impl.f_metadata_x, - self->private_impl.f_metadata_y, - self->private_impl.f_metadata_z); - } - if (self->private_impl.f_metadata_y >= self->private_impl.f_metadata_z) { - goto label__goto_done__break; - } - self->private_impl.f_metadata_y = self->private_impl.f_metadata_z; - status = wuffs_base__make_status(wuffs_base__suspension__even_more_information); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } - if (self->private_impl.f_metadata_is_zlib_compressed) { - if (self->private_impl.f_zlib_is_dirty) { - wuffs_base__ignore_status(wuffs_zlib__decoder__initialize(&self->private_data.f_zlib, - sizeof (wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - if (self->private_impl.f_ignore_checksum) { - wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, 1u, 1u); - } - } - self->private_impl.f_zlib_is_dirty = true; - self->private_impl.f_ztxt_hist_pos = 0u; + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_use_simple = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + if (v_use_simple != 0u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - label__loop__continue:; - while (true) { - if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - self->private_impl.f_metadata_flavor, - self->private_impl.f_metadata_fourcc, - self->private_impl.f_metadata_x, - self->private_impl.f_metadata_y, - self->private_impl.f_metadata_z); - } - if (self->private_impl.f_metadata_flavor != 4u) { - break; - } - if (self->private_impl.f_metadata_is_zlib_compressed) { - if (self->private_impl.f_chunk_type == 1346585449u) { - { - const bool o_0_closed_a_src = a_src->meta.closed; - const uint8_t *o_0_io2_a_src = io2_a_src; - wuffs_base__io_reader__limit(&io2_a_src, iop_a_src, - ((uint64_t)(self->private_impl.f_chunk_length))); - if (a_src) { - size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); - a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); - a_src->meta.wi = n; - } - v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_0 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); - v_zlib_status = t_0; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - wuffs_base__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_base__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); - io2_a_src = o_0_io2_a_src; - if (a_src) { - a_src->meta.closed = o_0_closed_a_src; - a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); - } - } - if (wuffs_base__status__is_ok(&v_zlib_status)) { - self->private_impl.f_metadata_is_zlib_compressed = false; - break; - } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { - status = v_zlib_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - status = v_zlib_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } else if (self->private_impl.f_chunk_type == 1951945833u) { - { - const bool o_1_closed_a_src = a_src->meta.closed; - const uint8_t *o_1_io2_a_src = io2_a_src; - wuffs_base__io_reader__limit(&io2_a_src, iop_a_src, - ((uint64_t)(self->private_impl.f_chunk_length))); - if (a_src) { - size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); - a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); - a_src->meta.wi = n; - } - v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_1 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); - v_zlib_status = t_1; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - wuffs_base__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_base__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); - io2_a_src = o_1_io2_a_src; - if (a_src) { - a_src->meta.closed = o_1_closed_a_src; - a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); - } - } - if (wuffs_base__status__is_ok(&v_zlib_status)) { - self->private_impl.f_metadata_is_zlib_compressed = false; - break; - } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { - status = v_zlib_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - status = v_zlib_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - } else if (self->private_impl.f_chunk_type == 1951945850u) { - if (self->private_impl.f_ztxt_ri == self->private_impl.f_ztxt_wi) { - { - wuffs_base__io_buffer* o_2_v_w = v_w; - uint8_t *o_2_iop_v_w = iop_v_w; - uint8_t *o_2_io0_v_w = io0_v_w; - uint8_t *o_2_io1_v_w = io1_v_w; - uint8_t *o_2_io2_v_w = io2_v_w; - v_w = wuffs_base__io_writer__set( - &u_w, - &iop_v_w, - &io0_v_w, - &io1_v_w, - &io2_v_w, - wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024), - self->private_impl.f_ztxt_hist_pos); - { - const bool o_3_closed_a_src = a_src->meta.closed; - const uint8_t *o_3_io2_a_src = io2_a_src; - wuffs_base__io_reader__limit(&io2_a_src, iop_a_src, - ((uint64_t)(self->private_impl.f_chunk_length))); - if (a_src) { - size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); - a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); - a_src->meta.wi = n; - } - v_w_mark = ((uint64_t)(iop_v_w - io0_v_w)); - v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - u_w.meta.wi = ((size_t)(iop_v_w - u_w.data.ptr)); - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_2 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, v_w, a_src, wuffs_base__utility__empty_slice_u8()); - v_zlib_status = t_2; - iop_v_w = u_w.data.ptr + u_w.meta.wi; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - wuffs_base__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_base__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); - v_num_written = wuffs_base__io__count_since(v_w_mark, ((uint64_t)(iop_v_w - io0_v_w))); - io2_a_src = o_3_io2_a_src; - if (a_src) { - a_src->meta.closed = o_3_closed_a_src; - a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); - } - } - v_w = o_2_v_w; - iop_v_w = o_2_iop_v_w; - io0_v_w = o_2_io0_v_w; - io1_v_w = o_2_io1_v_w; - io2_v_w = o_2_io2_v_w; - } - if (v_num_written > 1024u) { - status = wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_i_o); - goto exit; - } - self->private_impl.f_ztxt_ri = 0u; - self->private_impl.f_ztxt_wi = ((uint32_t)(v_num_written)); - wuffs_base__u64__sat_add_indirect(&self->private_impl.f_ztxt_hist_pos, v_num_written); - } - while (self->private_impl.f_ztxt_ri < self->private_impl.f_ztxt_wi) { - v_c2 = WUFFS_PNG__LATIN_1[self->private_data.f_dst_palette[self->private_impl.f_ztxt_ri]]; - if (v_c2 == 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_text_chunk_not_latin_1); - goto exit; - } else if (v_c2 <= 127u) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - goto label__loop__continue; - } - self->private_impl.f_ztxt_ri += 1u; - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)(v_c2))), iop_a_dst += 1); - } else { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - goto label__loop__continue; - } - self->private_impl.f_ztxt_ri += 1u; - (wuffs_base__poke_u16le__no_bounds_check(iop_a_dst, v_c2), iop_a_dst += 2); - } - } - if (wuffs_base__status__is_ok(&v_zlib_status)) { - self->private_impl.f_metadata_is_zlib_compressed = false; - break; - } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { - status = v_zlib_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } else if (v_zlib_status.repr != wuffs_base__suspension__short_write) { - status = v_zlib_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - } - } else { - status = wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_chunk_type); - goto exit; - } - } else if ((self->private_impl.f_chunk_type == 1951945833u) && (self->private_impl.f_metadata_fourcc == 1263947862u)) { - while (true) { - if (self->private_impl.f_chunk_length <= 0u) { - goto label__loop__break; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); - goto label__loop__continue; - } else if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - goto label__loop__continue; - } - self->private_impl.f_chunk_length -= 1u; - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_c), iop_a_dst += 1); - } - } else { - while (true) { - if (self->private_impl.f_chunk_length <= 0u) { - if (self->private_impl.f_metadata_fourcc == 1263947851u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - goto label__loop__break; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - goto label__loop__continue; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c == 0u) { - self->private_impl.f_chunk_length -= 1u; - iop_a_src += 1u; - goto label__loop__break; - } - v_c2 = WUFFS_PNG__LATIN_1[v_c]; - if (v_c2 == 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_text_chunk_not_latin_1); - goto exit; - } else if (v_c2 <= 127u) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); - goto label__loop__continue; - } - self->private_impl.f_chunk_length -= 1u; - iop_a_src += 1u; - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)(v_c2))), iop_a_dst += 1); - } else { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); - goto label__loop__continue; - } - self->private_impl.f_chunk_length -= 1u; - iop_a_src += 1u; - (wuffs_base__poke_u16le__no_bounds_check(iop_a_dst, v_c2), iop_a_dst += 2); - } - } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_webp__decoder__decode_huffman_tree_simple(self, a_src, a_hg, a_ht); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_webp__decoder__decode_code_length_code_lengths(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + v_status = wuffs_webp__decoder__build_code_lengths_huffman_nodes(self); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } + goto ok; } - label__loop__break:; - if (self->private_impl.f_metadata_fourcc == 1263947851u) { - self->private_impl.f_metadata_fourcc = 1263947862u; - if (self->private_impl.f_chunk_type == 1951945833u) { - if (self->private_impl.f_chunk_length <= 1u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 2u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; - } - if (v_c == 0u) { - self->private_impl.f_metadata_is_zlib_compressed = false; - } else if (v_c == 1u) { - self->private_impl.f_metadata_is_zlib_compressed = true; - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; - } - if ((v_c != 0u) && self->private_impl.f_metadata_is_zlib_compressed) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); - goto exit; - } - self->private_impl.f_metadata_fourcc -= 2u; - while (self->private_impl.f_metadata_fourcc != 1263947862u) { - self->private_impl.f_metadata_fourcc += 1u; - while (true) { - if (self->private_impl.f_chunk_length <= 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; - } - if (v_c == 0u) { - break; - } - } - } - } else if (self->private_impl.f_chunk_type == 1951945850u) { - if (self->private_impl.f_chunk_length <= 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_6 = *iop_a_src++; - v_c = t_6; - } - if (v_c != 0u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); - goto exit; - } - self->private_impl.f_metadata_is_zlib_compressed = true; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_webp__decoder__build_code_lengths(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + v_status = wuffs_webp__decoder__build_huffman_nodes(self, a_hg, a_ht); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } - self->private_impl.f_call_sequence &= 239u; - status = wuffs_base__make_status(NULL); goto ok; } - } while (0); - label__goto_done__break:; - if (self->private_impl.f_chunk_length != 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_data.s_do_tell_me_more[0].scratch = 4u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - if (self->private_data.s_do_tell_me_more[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_tell_me_more[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; } - iop_a_src += self->private_data.s_do_tell_me_more[0].scratch; - self->private_impl.f_metadata_flavor = 0u; - self->private_impl.f_metadata_fourcc = 0u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; - self->private_impl.f_call_sequence &= 239u; - status = wuffs_base__make_status(NULL); - goto ok; ok: - self->private_impl.p_do_tell_me_more[0] = 0; + self->private_impl.p_decode_huffman_tree = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_tell_me_more[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_tell_me_more[0].v_zlib_status = v_zlib_status; + self->private_impl.p_decode_huffman_tree = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -58593,563 +72047,1574 @@ wuffs_png__decoder__do_tell_me_more( return status; } -// -------- func png.decoder.history_retain_length +// -------- func webp.decoder.decode_huffman_tree_simple WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_png__decoder__history_retain_length( - const wuffs_png__decoder* self) { - if (!self) { - return 0; +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_tree_simple( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_hg, + uint32_t a_ht) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_use_second_symbol = 0; + uint32_t v_first_symbol_n_bits = 0; + uint32_t v_symbol0 = 0; + uint32_t v_symbol1 = 0; + uint32_t v_base_offset = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_tree_simple; + if (coro_susp_point) { + v_use_second_symbol = self->private_data.s_decode_huffman_tree_simple.v_use_second_symbol; + v_first_symbol_n_bits = self->private_data.s_decode_huffman_tree_simple.v_first_symbol_n_bits; + v_symbol0 = self->private_data.s_decode_huffman_tree_simple.v_symbol0; + v_base_offset = self->private_data.s_decode_huffman_tree_simple.v_base_offset; } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - return 0u; + if (self->private_impl.f_n_bits < 2u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (self->private_impl.f_n_bits >= 2u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_use_second_symbol = (self->private_impl.f_bits & 1u); + v_first_symbol_n_bits = ((((self->private_impl.f_bits & 2u) >> 1u) * 7u) + 1u); + self->private_impl.f_bits >>= 2u; + self->private_impl.f_n_bits -= 2u; + if (self->private_impl.f_n_bits < v_first_symbol_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= v_first_symbol_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_symbol0 = (self->private_impl.f_bits & ((((uint32_t)(1u)) << v_first_symbol_n_bits) - 1u)); + self->private_impl.f_bits >>= v_first_symbol_n_bits; + self->private_impl.f_n_bits -= v_first_symbol_n_bits; + v_base_offset = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[a_ht])); + if (v_use_second_symbol != 0u) { + if (self->private_impl.f_n_bits < 8u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (self->private_impl.f_n_bits >= 8u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_symbol1 = (self->private_impl.f_bits & 255u); + self->private_impl.f_bits >>= 8u; + self->private_impl.f_n_bits -= 8u; + self->private_data.f_huffman_nodes[a_hg][(v_base_offset + 0u)] = ((uint16_t)((v_base_offset + 1u))); + self->private_data.f_huffman_nodes[a_hg][(v_base_offset + 1u)] = ((uint16_t)((v_symbol0 | 32768u))); + self->private_data.f_huffman_nodes[a_hg][(v_base_offset + 2u)] = ((uint16_t)((v_symbol1 | 32768u))); + } else { + self->private_data.f_huffman_nodes[a_hg][v_base_offset] = ((uint16_t)((v_symbol0 | 32768u))); + } + + goto ok; + ok: + self->private_impl.p_decode_huffman_tree_simple = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_huffman_tree_simple = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_huffman_tree_simple.v_use_second_symbol = v_use_second_symbol; + self->private_data.s_decode_huffman_tree_simple.v_first_symbol_n_bits = v_first_symbol_n_bits; + self->private_data.s_decode_huffman_tree_simple.v_symbol0 = v_symbol0; + self->private_data.s_decode_huffman_tree_simple.v_base_offset = v_base_offset; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -// -------- func png.decoder.workbuf_len +// -------- func webp.decoder.decode_code_length_code_lengths WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_png__decoder__workbuf_len( - const wuffs_png__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); +static wuffs_base__status +wuffs_webp__decoder__decode_code_length_code_lengths( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_n_codes = 0; + uint32_t v_i = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + + uint32_t coro_susp_point = self->private_impl.p_decode_code_length_code_lengths; + if (coro_susp_point) { + v_n_codes = self->private_data.s_decode_code_length_code_lengths.v_n_codes; + v_i = self->private_data.s_decode_code_length_code_lengths.v_i; } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - return wuffs_base__utility__make_range_ii_u64(self->private_impl.f_overall_workbuf_length, self->private_impl.f_overall_workbuf_length); + if (self->private_impl.f_n_bits < 4u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (self->private_impl.f_n_bits >= 4u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_n_codes = ((self->private_impl.f_bits & 15u) + 4u); + self->private_impl.f_bits >>= 4u; + self->private_impl.f_n_bits -= 4u; + v_i = 0u; + while (v_i < v_n_codes) { + if (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 3u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + self->private_impl.f_code_length_code_lengths[WUFFS_WEBP__CODE_LENGTH_CODE_ORDER[v_i]] = ((uint8_t)((self->private_impl.f_bits & 7u))); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + v_i += 1u; + } + while (v_i < 19u) { + self->private_impl.f_code_length_code_lengths[WUFFS_WEBP__CODE_LENGTH_CODE_ORDER[v_i]] = 0u; + v_i += 1u; + } + + goto ok; + ok: + self->private_impl.p_decode_code_length_code_lengths = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_code_length_code_lengths = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_code_length_code_lengths.v_n_codes = v_n_codes; + self->private_data.s_decode_code_length_code_lengths.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -// -------- func png.decoder.filter_and_swizzle +// -------- func webp.decoder.build_code_lengths_huffman_nodes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - return (*self->private_impl.choosy_filter_and_swizzle)(self, a_dst, a_workbuf); +wuffs_webp__decoder__build_code_lengths_huffman_nodes( + wuffs_webp__decoder* self) { + uint32_t v_code_bits = 0; + uint32_t v_code_len = 0; + uint32_t v_symbol = 0; + uint32_t v_histogram[8] = {0}; + uint32_t v_n_used_symbols = 0; + uint32_t v_last_used_symbol = 0; + uint32_t v_subscription_weight = 0; + uint32_t v_subscription_total = 0; + uint32_t v_curr_code = 0; + uint32_t v_next_codes[9] = {0}; + uint32_t v_n_branches = 0; + uint32_t v_h = 0; + uint32_t v_children = 0; + uint16_t v_node = 0; + + v_symbol = 0u; + while (v_symbol < 19u) { + v_code_len = ((uint32_t)(self->private_impl.f_code_length_code_lengths[v_symbol])); + if (v_code_len != 0u) { + v_histogram[v_code_len] += 1u; + v_n_used_symbols += 1u; + v_last_used_symbol = v_symbol; + } + v_symbol += 1u; + } + if (v_n_used_symbols < 1u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code); + } else if (v_n_used_symbols == 1u) { + self->private_data.f_code_lengths_huffman_nodes[0u] = ((uint16_t)((v_last_used_symbol | 32768u))); + return wuffs_base__make_status(NULL); + } + v_subscription_weight = 16384u; + v_code_len = 1u; + while (true) { + v_curr_code = ((uint32_t)(((uint32_t)(v_curr_code + v_histogram[v_code_len])) << 1u)); + v_next_codes[(v_code_len + 1u)] = v_curr_code; + v_subscription_total += ((uint32_t)(v_subscription_weight * v_histogram[v_code_len])); + v_subscription_weight >>= 1u; + if (v_code_len >= 7u) { + break; + } + v_code_len += 1u; + } + if (v_subscription_total > 32768u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code_over_subscribed); + } else if (v_subscription_total < 32768u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code_under_subscribed); + } + self->private_data.f_code_lengths_huffman_nodes[0u] = 0u; + v_symbol = 0u; + while (v_symbol < 19u) { + v_code_len = ((uint32_t)(self->private_impl.f_code_length_code_lengths[v_symbol])); + if (v_code_len > 0u) { + v_code_bits = v_next_codes[v_code_len]; + v_next_codes[v_code_len] += 1u; + v_code_bits <<= (32u - v_code_len); + v_h = 0u; + while (v_code_len > 0u) { + v_node = self->private_data.f_code_lengths_huffman_nodes[v_h]; + if (v_node == 0u) { + v_children = ((uint32_t)(1u + ((uint32_t)(2u * v_n_branches)))); + v_children = wuffs_base__u32__min(v_children, 35u); + self->private_data.f_code_lengths_huffman_nodes[v_h] = ((uint16_t)(v_children)); + self->private_data.f_code_lengths_huffman_nodes[(v_children + 0u)] = 0u; + self->private_data.f_code_lengths_huffman_nodes[(v_children + 1u)] = 0u; + v_h = (v_children + (v_code_bits >> 31u)); + v_n_branches += 1u; + } else { + v_children = ((uint32_t)(v_node)); + v_h = (wuffs_base__u32__min(v_children, 35u) + (v_code_bits >> 31u)); + } + v_code_bits <<= 1u; + v_code_len -= 1u; + } + self->private_data.f_code_lengths_huffman_nodes[v_h] = ((uint16_t)((v_symbol | 32768u))); + } + v_symbol += 1u; + } + return wuffs_base__make_status(NULL); } +// -------- func webp.decoder.build_huffman_nodes + WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle__choosy_default( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint64_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row0 = 0; - uint64_t v_dst_bytes_per_row1 = 0; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__table_u8 v_tab = {0}; - uint32_t v_y = 0; - wuffs_base__slice_u8 v_dst = {0}; - uint8_t v_filter = 0; - wuffs_base__slice_u8 v_curr_row = {0}; - wuffs_base__slice_u8 v_prev_row = {0}; - - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - return wuffs_base__make_status(wuffs_base__error__unsupported_option); +wuffs_webp__decoder__build_huffman_nodes( + wuffs_webp__decoder* self, + uint32_t a_hg, + uint32_t a_ht) { + uint32_t v_base_offset = 0; + uint32_t v_code_bits = 0; + uint32_t v_code_len = 0; + uint32_t v_symbol = 0; + uint32_t v_histogram[16] = {0}; + uint32_t v_n_used_symbols = 0; + uint32_t v_last_used_symbol = 0; + uint32_t v_subscription_weight = 0; + uint32_t v_subscription_total = 0; + uint32_t v_curr_code = 0; + uint32_t v_next_codes[17] = {0}; + uint32_t v_n_branches = 0; + uint32_t v_h = 0; + uint32_t v_children = 0; + uint16_t v_node = 0; + + v_base_offset = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[a_ht])); + v_symbol = 0u; + while (v_symbol < self->private_impl.f_ht_n_symbols) { + v_code_len = ((uint32_t)(((uint16_t)(self->private_data.f_code_lengths[v_symbol] & 15u)))); + if (v_code_len != 0u) { + v_histogram[v_code_len] += 1u; + v_n_used_symbols += 1u; + v_last_used_symbol = v_symbol; + } + v_symbol += 1u; + } + if (v_n_used_symbols < 1u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code); + } else if (v_n_used_symbols == 1u) { + self->private_data.f_huffman_nodes[a_hg][v_base_offset] = ((uint16_t)((v_last_used_symbol | 32768u))); + return wuffs_base__make_status(NULL); } - v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); - v_dst_bytes_per_row0 = (((uint64_t)(self->private_impl.f_frame_rect_x0)) * v_dst_bytes_per_pixel); - v_dst_bytes_per_row1 = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * v_dst_bytes_per_pixel); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - if (v_dst_bytes_per_row1 < ((uint64_t)(v_tab.width))) { - v_tab = wuffs_base__table_u8__subtable_ij(v_tab, - 0u, - 0u, - v_dst_bytes_per_row1, - ((uint64_t)(v_tab.height))); + v_subscription_weight = 16384u; + v_code_len = 1u; + while (true) { + v_curr_code = ((uint32_t)(((uint32_t)(v_curr_code + v_histogram[v_code_len])) << 1u)); + v_next_codes[(v_code_len + 1u)] = v_curr_code; + v_subscription_total += ((uint32_t)(v_subscription_weight * v_histogram[v_code_len])); + v_subscription_weight >>= 1u; + if (v_code_len >= 15u) { + break; + } + v_code_len += 1u; + } + if (v_subscription_total > 32768u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code_over_subscribed); + } else if (v_subscription_total < 32768u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code_under_subscribed); + } + self->private_data.f_huffman_nodes[a_hg][v_base_offset] = 0u; + v_symbol = 0u; + while (v_symbol < self->private_impl.f_ht_n_symbols) { + v_code_len = ((uint32_t)(((uint16_t)(self->private_data.f_code_lengths[v_symbol] & 15u)))); + if (v_code_len != 0u) { + v_code_bits = v_next_codes[v_code_len]; + v_next_codes[v_code_len] += 1u; + v_code_bits <<= (32u - v_code_len); + v_h = v_base_offset; + while (v_code_len > 0u) { + v_node = self->private_data.f_huffman_nodes[a_hg][v_h]; + if (v_node == 0u) { + v_children = ((uint32_t)(v_base_offset + ((uint32_t)(1u + ((uint32_t)(2u * v_n_branches)))))); + v_children = wuffs_base__u32__min(v_children, 6265u); + self->private_data.f_huffman_nodes[a_hg][v_h] = ((uint16_t)(v_children)); + self->private_data.f_huffman_nodes[a_hg][(v_children + 0u)] = 0u; + self->private_data.f_huffman_nodes[a_hg][(v_children + 1u)] = 0u; + v_h = (v_children + (v_code_bits >> 31u)); + v_n_branches += 1u; + } else { + v_children = ((uint32_t)(v_node)); + v_h = (wuffs_base__u32__min(v_children, 6265u) + (v_code_bits >> 31u)); + } + v_code_bits <<= 1u; + v_code_len -= 1u; + } + self->private_data.f_huffman_nodes[a_hg][v_h] = ((uint16_t)((v_symbol | 32768u))); + } + v_symbol += 1u; } - if (v_dst_bytes_per_row0 < ((uint64_t)(v_tab.width))) { - v_tab = wuffs_base__table_u8__subtable_ij(v_tab, - v_dst_bytes_per_row0, - 0u, - ((uint64_t)(v_tab.width)), - ((uint64_t)(v_tab.height))); - } else { - v_tab = wuffs_base__table_u8__subtable_ij(v_tab, - 0u, - 0u, - 0u, - 0u); + return wuffs_base__make_status(NULL); +} + +// -------- func webp.decoder.build_code_lengths + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_code_lengths( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_use_length = 0; + uint32_t v_length_n_bits = 0; + uint32_t v_length = 0; + uint16_t v_prev_code_length = 0; + uint32_t v_h = 0; + uint32_t v_s = 0; + uint32_t v_s_max = 0; + uint16_t v_node = 0; + uint32_t v_symbol = 0; + uint16_t v_repeat_value = 0; + uint32_t v_repeat_n_bits = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - v_y = self->private_impl.f_frame_rect_y0; - while (v_y < self->private_impl.f_frame_rect_y1) { - v_dst = wuffs_base__table_u8__row_u32(v_tab, v_y); - if (1u > ((uint64_t)(a_workbuf.len))) { - return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + + uint32_t coro_susp_point = self->private_impl.p_build_code_lengths; + if (coro_susp_point) { + v_length_n_bits = self->private_data.s_build_code_lengths.v_length_n_bits; + v_prev_code_length = self->private_data.s_build_code_lengths.v_prev_code_length; + v_s = self->private_data.s_build_code_lengths.v_s; + v_s_max = self->private_data.s_build_code_lengths.v_s_max; + v_node = self->private_data.s_build_code_lengths.v_node; + v_repeat_value = self->private_data.s_build_code_lengths.v_repeat_value; + v_repeat_n_bits = self->private_data.s_build_code_lengths.v_repeat_n_bits; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; } - v_filter = a_workbuf.ptr[0u]; - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, 1u); - if (self->private_impl.f_pass_bytes_per_row > ((uint64_t)(a_workbuf.len))) { - return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + v_use_length = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + self->private_impl.f_ht_code_lengths_remaining = self->private_impl.f_ht_n_symbols; + if (v_use_length != 0u) { + if (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 3u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_length_n_bits = (((self->private_impl.f_bits & 7u) * 2u) + 2u); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + while (self->private_impl.f_n_bits < v_length_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (self->private_impl.f_n_bits >= v_length_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_length = ((self->private_impl.f_bits & ((((uint32_t)(1u)) << v_length_n_bits) - 1u)) + 2u); + self->private_impl.f_bits >>= v_length_n_bits; + self->private_impl.f_n_bits -= v_length_n_bits; + if (v_length > self->private_impl.f_ht_n_symbols) { + status = wuffs_base__make_status(wuffs_webp__error__bad_huffman_code); + goto exit; + } + self->private_impl.f_ht_code_lengths_remaining = v_length; } - v_curr_row = wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_pass_bytes_per_row); - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, self->private_impl.f_pass_bytes_per_row); - if (v_filter == 0u) { - } else if (v_filter == 1u) { - wuffs_png__decoder__filter_1(self, v_curr_row); - } else if (v_filter == 2u) { - wuffs_png__decoder__filter_2(self, v_curr_row, v_prev_row); - } else if (v_filter == 3u) { - wuffs_png__decoder__filter_3(self, v_curr_row, v_prev_row); - } else if (v_filter == 4u) { - wuffs_png__decoder__filter_4(self, v_curr_row, v_prev_row); - } else { - return wuffs_base__make_status(wuffs_png__error__bad_filter); + v_prev_code_length = 8u; + while (v_s < self->private_impl.f_ht_n_symbols) { + if (self->private_impl.f_ht_code_lengths_remaining <= 0u) { + while (v_s < self->private_impl.f_ht_n_symbols) { + self->private_data.f_code_lengths[v_s] = 0u; + v_s += 1u; + } + break; + } + self->private_impl.f_ht_code_lengths_remaining -= 1u; + v_h = 0u; + while (true) { + v_node = self->private_data.f_code_lengths_huffman_nodes[v_h]; + if (v_node >= 32768u) { + break; + } else if (v_node > 35u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_huffman_code); + goto exit; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = (((uint32_t)(v_node)) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_symbol = ((uint32_t)(((uint16_t)(v_node & 32767u)))); + if (v_symbol == 0u) { + self->private_data.f_code_lengths[v_s] = 0u; + v_s += 1u; + continue; + } else if (v_symbol < 16u) { + v_prev_code_length = ((uint16_t)(v_symbol)); + self->private_data.f_code_lengths[v_s] = v_prev_code_length; + v_s += 1u; + continue; + } else if (v_symbol == 16u) { + v_repeat_value = v_prev_code_length; + } else { + v_repeat_value = 0u; + } + v_repeat_n_bits = ((uint32_t)(WUFFS_WEBP__REPEAT_N_BITS[(v_symbol & 3u)])); + v_s_max = ((uint32_t)(((uint32_t)(WUFFS_WEBP__REPEAT_COUNTS[(v_symbol & 3u)])) + v_s)); + if (self->private_impl.f_n_bits < v_repeat_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if (self->private_impl.f_n_bits >= v_repeat_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_s_max += (self->private_impl.f_bits & ((((uint32_t)(1u)) << v_repeat_n_bits) - 1u)); + self->private_impl.f_bits >>= v_repeat_n_bits; + self->private_impl.f_n_bits -= v_repeat_n_bits; + if (v_s_max > self->private_impl.f_ht_n_symbols) { + status = wuffs_base__make_status(wuffs_webp__error__bad_huffman_code); + goto exit; + } + while (v_s < v_s_max) { + self->private_data.f_code_lengths[v_s] = v_repeat_value; + v_s += 1u; + } } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, v_curr_row); - v_prev_row = v_curr_row; - v_y += 1u; + + goto ok; + ok: + self->private_impl.p_build_code_lengths = 0; + goto exit; } - return wuffs_base__make_status(NULL); + + goto suspend; + suspend: + self->private_impl.p_build_code_lengths = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_build_code_lengths.v_length_n_bits = v_length_n_bits; + self->private_data.s_build_code_lengths.v_prev_code_length = v_prev_code_length; + self->private_data.s_build_code_lengths.v_s = v_s; + self->private_data.s_build_code_lengths.v_s_max = v_s_max; + self->private_data.s_build_code_lengths.v_node = v_node; + self->private_data.s_build_code_lengths.v_repeat_value = v_repeat_value; + self->private_data.s_build_code_lengths.v_repeat_n_bits = v_repeat_n_bits; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -// -------- func png.decoder.filter_and_swizzle_tricky +// -------- func webp.decoder.decode_pixels_slow WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle_tricky( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint64_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row1 = 0; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__table_u8 v_tab = {0}; - uint64_t v_src_bytes_per_pixel = 0; +wuffs_webp__decoder__decode_pixels_slow( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_dst, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + uint32_t a_height, + wuffs_base__slice_u8 a_tile_data, + uint32_t a_tile_size_log2) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint64_t v_p = 0; + uint64_t v_p_max = 0; + uint32_t v_tile_size_log2 = 0; + uint32_t v_width_in_tiles = 0; uint32_t v_x = 0; uint32_t v_y = 0; - uint64_t v_i = 0; - wuffs_base__slice_u8 v_dst = {0}; - uint8_t v_filter = 0; - wuffs_base__slice_u8 v_s = {0}; - wuffs_base__slice_u8 v_curr_row = {0}; - wuffs_base__slice_u8 v_prev_row = {0}; - uint8_t v_bits_unpacked[8] = {0}; - uint8_t v_bits_packed = 0; - uint8_t v_packs_remaining = 0; - uint8_t v_multiplier = 0; - uint8_t v_shift = 0; + uint32_t v_i = 0; + uint32_t v_hg = 0; + uint32_t v_h = 0; + uint16_t v_node = 0; + uint32_t v_pixel_g = 0; + uint32_t v_color = 0; + wuffs_base__slice_u8 v_dst_pixel = {0}; + uint32_t v_back_ref_len_n_bits = 0; + uint32_t v_back_ref_len_minus_1 = 0; + uint32_t v_back_ref_dist_n_bits = 0; + uint32_t v_back_ref_dist_sym = 0; + uint32_t v_back_ref_dist_premap_minus_1 = 0; + uint32_t v_back_ref_dist_minus_1 = 0; + uint32_t v_dm = 0; + uint32_t v_dx = 0; + uint32_t v_dy = 0; + uint64_t v_p_end = 0; + uint64_t v_dist4 = 0; + uint64_t v_q = 0; + wuffs_base__slice_u8 v_color_cache_pixels = {0}; + uint64_t v_color_cache_p = 0; + uint32_t v_color_cache_shift = 0; - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - return wuffs_base__make_status(wuffs_base__error__unsupported_option); - } - v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); - v_dst_bytes_per_row1 = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * v_dst_bytes_per_pixel); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_src_bytes_per_pixel = 1u; - if (self->private_impl.f_depth >= 8u) { - v_src_bytes_per_pixel = (((uint64_t)(WUFFS_PNG__NUM_CHANNELS[self->private_impl.f_color_type])) * ((uint64_t)((self->private_impl.f_depth >> 3u)))); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - v_y = ((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][5u])); - } else { - v_y = self->private_impl.f_frame_rect_y0; + + uint32_t coro_susp_point = self->private_impl.p_decode_pixels_slow; + if (coro_susp_point) { + v_p = self->private_data.s_decode_pixels_slow.v_p; + v_p_max = self->private_data.s_decode_pixels_slow.v_p_max; + v_tile_size_log2 = self->private_data.s_decode_pixels_slow.v_tile_size_log2; + v_width_in_tiles = self->private_data.s_decode_pixels_slow.v_width_in_tiles; + v_x = self->private_data.s_decode_pixels_slow.v_x; + v_y = self->private_data.s_decode_pixels_slow.v_y; + v_hg = self->private_data.s_decode_pixels_slow.v_hg; + v_node = self->private_data.s_decode_pixels_slow.v_node; + v_color = self->private_data.s_decode_pixels_slow.v_color; + v_back_ref_len_n_bits = self->private_data.s_decode_pixels_slow.v_back_ref_len_n_bits; + v_back_ref_len_minus_1 = self->private_data.s_decode_pixels_slow.v_back_ref_len_minus_1; + v_back_ref_dist_n_bits = self->private_data.s_decode_pixels_slow.v_back_ref_dist_n_bits; + v_back_ref_dist_premap_minus_1 = self->private_data.s_decode_pixels_slow.v_back_ref_dist_premap_minus_1; + v_color_cache_p = self->private_data.s_decode_pixels_slow.v_color_cache_p; } - while (v_y < self->private_impl.f_frame_rect_y1) { - v_dst = wuffs_base__table_u8__row_u32(v_tab, v_y); - if (v_dst_bytes_per_row1 < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row1); - } - if (1u > ((uint64_t)(a_workbuf.len))) { - return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); - } - v_filter = a_workbuf.ptr[0u]; - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, 1u); - if (self->private_impl.f_pass_bytes_per_row > ((uint64_t)(a_workbuf.len))) { - return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); - } - v_curr_row = wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_pass_bytes_per_row); - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, self->private_impl.f_pass_bytes_per_row); - if (v_filter == 0u) { - } else if (v_filter == 1u) { - wuffs_png__decoder__filter_1(self, v_curr_row); - } else if (v_filter == 2u) { - wuffs_png__decoder__filter_2(self, v_curr_row, v_prev_row); - } else if (v_filter == 3u) { - wuffs_png__decoder__filter_3(self, v_curr_row, v_prev_row); - } else if (v_filter == 4u) { - wuffs_png__decoder__filter_4(self, v_curr_row, v_prev_row); - } else { - return wuffs_base__make_status(wuffs_png__error__bad_filter); + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + v_p_max = ((uint64_t)((4u * a_width * a_height))); + if (((uint64_t)(a_dst.len)) < v_p_max) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_dst_buffer); + goto exit; } - v_s = v_curr_row; - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - v_x = ((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][2u])); + if (a_tile_size_log2 != 0u) { + v_tile_size_log2 = a_tile_size_log2; + v_width_in_tiles = ((a_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2); } else { - v_x = self->private_impl.f_frame_rect_x0; + v_tile_size_log2 = 31u; + v_width_in_tiles = 1u; } - if (self->private_impl.f_depth == 8u) { - while (v_x < self->private_impl.f_frame_rect_x1) { - v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); - if (v_i <= ((uint64_t)(v_dst.len))) { - if (self->private_impl.f_color_type == 4u) { - if (2u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[0u]; - v_bits_unpacked[1u] = v_s.ptr[0u]; - v_bits_unpacked[2u] = v_s.ptr[0u]; - v_bits_unpacked[3u] = v_s.ptr[1u]; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); - } - } else if (((uint32_t)(self->private_impl.f_remap_transparency)) != 0u) { - if (self->private_impl.f_color_type == 0u) { - if (1u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[0u]; - v_bits_unpacked[1u] = v_s.ptr[0u]; - v_bits_unpacked[2u] = v_s.ptr[0u]; - v_bits_unpacked[3u] = 255u; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); - if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | - (((uint32_t)(v_bits_unpacked[1u])) << 8u) | - (((uint32_t)(v_bits_unpacked[2u])) << 16u) | - (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); + while (v_p < v_p_max) { + v_i = ((uint32_t)(((uint32_t)(((uint32_t)(((uint32_t)((v_y >> v_tile_size_log2) * v_width_in_tiles)) + (v_x >> v_tile_size_log2))) * 4u)) + 1u)); + if (((uint64_t)(v_i)) < ((uint64_t)(a_tile_data.len))) { + v_hg = ((uint32_t)(a_tile_data.ptr[((uint64_t)(v_i))])); + } + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[0u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } else if (v_node > 6265u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_huffman_code); + goto exit; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = (((uint32_t)(v_node)) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_pixel_g = ((uint32_t)(((uint16_t)(v_node & 32767u)))); + if (v_pixel_g < 256u) { + v_color = (v_pixel_g << 8u); + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[1u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - } else { - if (3u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[2u]; - v_bits_unpacked[1u] = v_s.ptr[1u]; - v_bits_unpacked[2u] = v_s.ptr[0u]; - v_bits_unpacked[3u] = 255u; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 3u); - if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | - (((uint32_t)(v_bits_unpacked[1u])) << 8u) | - (((uint32_t)(v_bits_unpacked[2u])) << 16u) | - (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = ((((uint32_t)(v_node)) & 4095u) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_color |= (((uint32_t)(((uint16_t)(v_node & 255u)))) << 16u); + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[2u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; } - } else if (v_src_bytes_per_pixel <= ((uint64_t)(v_s.len))) { - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__slice_u8__subslice_j(v_s, v_src_bytes_per_pixel)); - v_s = wuffs_base__slice_u8__subslice_i(v_s, v_src_bytes_per_pixel); + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; } + v_h = ((((uint32_t)(v_node)) & 4095u) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; } - v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); - } - } else if (self->private_impl.f_depth < 8u) { - v_multiplier = 1u; - if (self->private_impl.f_color_type == 0u) { - v_multiplier = WUFFS_PNG__LOW_BIT_DEPTH_MULTIPLIERS[self->private_impl.f_depth]; - } - v_shift = ((8u - self->private_impl.f_depth) & 7u); - v_packs_remaining = 0u; - while (v_x < self->private_impl.f_frame_rect_x1) { - v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); - if (v_i <= ((uint64_t)(v_dst.len))) { - if ((v_packs_remaining == 0u) && (1u <= ((uint64_t)(v_s.len)))) { - v_packs_remaining = WUFFS_PNG__LOW_BIT_DEPTH_NUM_PACKS[self->private_impl.f_depth]; - v_bits_packed = v_s.ptr[0u]; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + v_color |= (((uint32_t)(((uint16_t)(v_node & 255u)))) << 0u); + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[3u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; } - v_bits_unpacked[0u] = ((uint8_t)((v_bits_packed >> v_shift) * v_multiplier)); - v_bits_packed = ((uint8_t)(v_bits_packed << self->private_impl.f_depth)); - v_packs_remaining = ((uint8_t)(v_packs_remaining - 1u)); - if (((uint32_t)(self->private_impl.f_remap_transparency)) != 0u) { - v_bits_unpacked[1u] = v_bits_unpacked[0u]; - v_bits_unpacked[2u] = v_bits_unpacked[0u]; - v_bits_unpacked[3u] = 255u; - if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | - (((uint32_t)(v_bits_unpacked[1u])) << 8u) | - (((uint32_t)(v_bits_unpacked[2u])) << 16u) | - (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); - } else { - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 1)); + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; } + v_h = ((((uint32_t)(v_node)) & 4095u) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; } - v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); - } - } else { - while (v_x < self->private_impl.f_frame_rect_x1) { - v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); - if (v_i <= ((uint64_t)(v_dst.len))) { - if (self->private_impl.f_color_type == 0u) { - if (2u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[1u]; - v_bits_unpacked[1u] = v_s.ptr[0u]; - v_bits_unpacked[2u] = v_s.ptr[1u]; - v_bits_unpacked[3u] = v_s.ptr[0u]; - v_bits_unpacked[4u] = v_s.ptr[1u]; - v_bits_unpacked[5u] = v_s.ptr[0u]; - v_bits_unpacked[6u] = 255u; - v_bits_unpacked[7u] = 255u; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); - if (self->private_impl.f_remap_transparency == ((((uint64_t)(v_bits_unpacked[0u])) << 0u) | - (((uint64_t)(v_bits_unpacked[1u])) << 8u) | - (((uint64_t)(v_bits_unpacked[2u])) << 16u) | - (((uint64_t)(v_bits_unpacked[3u])) << 24u) | - (((uint64_t)(v_bits_unpacked[4u])) << 32u) | - (((uint64_t)(v_bits_unpacked[5u])) << 40u) | - (((uint64_t)(v_bits_unpacked[6u])) << 48u) | - (((uint64_t)(v_bits_unpacked[7u])) << 56u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - v_bits_unpacked[4u] = 0u; - v_bits_unpacked[5u] = 0u; - v_bits_unpacked[6u] = 0u; - v_bits_unpacked[7u] = 0u; + v_color |= (((uint32_t)(((uint16_t)(v_node & 255u)))) << 24u); + } else if (v_pixel_g < 280u) { + if (v_pixel_g < 260u) { + v_back_ref_len_minus_1 = (v_pixel_g - 256u); + } else { + v_back_ref_len_n_bits = ((v_pixel_g - 258u) >> 1u); + v_back_ref_len_minus_1 = ((((uint32_t)(2u)) + (v_pixel_g & 1u)) << v_back_ref_len_n_bits); + while (self->private_impl.f_n_bits < v_back_ref_len_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; } - } else if (self->private_impl.f_color_type == 2u) { - if (6u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[5u]; - v_bits_unpacked[1u] = v_s.ptr[4u]; - v_bits_unpacked[2u] = v_s.ptr[3u]; - v_bits_unpacked[3u] = v_s.ptr[2u]; - v_bits_unpacked[4u] = v_s.ptr[1u]; - v_bits_unpacked[5u] = v_s.ptr[0u]; - v_bits_unpacked[6u] = 255u; - v_bits_unpacked[7u] = 255u; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 6u); - if (self->private_impl.f_remap_transparency == ((((uint64_t)(v_bits_unpacked[0u])) << 0u) | - (((uint64_t)(v_bits_unpacked[1u])) << 8u) | - (((uint64_t)(v_bits_unpacked[2u])) << 16u) | - (((uint64_t)(v_bits_unpacked[3u])) << 24u) | - (((uint64_t)(v_bits_unpacked[4u])) << 32u) | - (((uint64_t)(v_bits_unpacked[5u])) << 40u) | - (((uint64_t)(v_bits_unpacked[6u])) << 48u) | - (((uint64_t)(v_bits_unpacked[7u])) << 56u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - v_bits_unpacked[4u] = 0u; - v_bits_unpacked[5u] = 0u; - v_bits_unpacked[6u] = 0u; - v_bits_unpacked[7u] = 0u; + if (self->private_impl.f_n_bits >= v_back_ref_len_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_back_ref_len_minus_1 += (self->private_impl.f_bits & ((((uint32_t)(1u)) << v_back_ref_len_n_bits) - 1u)); + self->private_impl.f_bits >>= v_back_ref_len_n_bits; + self->private_impl.f_n_bits -= v_back_ref_len_n_bits; + } + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[4u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; } - } else if (self->private_impl.f_color_type == 4u) { - if (4u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[1u]; - v_bits_unpacked[1u] = v_s.ptr[0u]; - v_bits_unpacked[2u] = v_s.ptr[1u]; - v_bits_unpacked[3u] = v_s.ptr[0u]; - v_bits_unpacked[4u] = v_s.ptr[1u]; - v_bits_unpacked[5u] = v_s.ptr[0u]; - v_bits_unpacked[6u] = v_s.ptr[3u]; - v_bits_unpacked[7u] = v_s.ptr[2u]; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = ((((uint32_t)(v_node)) & 4095u) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_back_ref_dist_sym = ((uint32_t)(((uint16_t)(v_node & 32767u)))); + if (v_back_ref_dist_sym < 4u) { + v_back_ref_dist_premap_minus_1 = v_back_ref_dist_sym; + } else if (v_back_ref_dist_sym < 40u) { + v_back_ref_dist_n_bits = ((v_back_ref_dist_sym - 2u) >> 1u); + v_back_ref_dist_premap_minus_1 = ((((uint32_t)(2u)) + (v_back_ref_dist_sym & 1u)) << v_back_ref_dist_n_bits); + while (self->private_impl.f_n_bits < v_back_ref_dist_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; } - } else { - if (8u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[5u]; - v_bits_unpacked[1u] = v_s.ptr[4u]; - v_bits_unpacked[2u] = v_s.ptr[3u]; - v_bits_unpacked[3u] = v_s.ptr[2u]; - v_bits_unpacked[4u] = v_s.ptr[1u]; - v_bits_unpacked[5u] = v_s.ptr[0u]; - v_bits_unpacked[6u] = v_s.ptr[7u]; - v_bits_unpacked[7u] = v_s.ptr[6u]; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 8u); + if (self->private_impl.f_n_bits >= v_back_ref_dist_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 8)); + v_back_ref_dist_premap_minus_1 += (self->private_impl.f_bits & ((((uint32_t)(1u)) << v_back_ref_dist_n_bits) - 1u)); + self->private_impl.f_bits >>= v_back_ref_dist_n_bits; + self->private_impl.f_n_bits -= v_back_ref_dist_n_bits; } - v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); + if (v_back_ref_dist_premap_minus_1 >= 120u) { + v_back_ref_dist_minus_1 = (v_back_ref_dist_premap_minus_1 - 120u); + } else { + v_dm = ((uint32_t)(WUFFS_WEBP__DISTANCE_MAP[v_back_ref_dist_premap_minus_1])); + v_dy = (v_dm >> 4u); + v_dx = ((uint32_t)(7u - (v_dm & 15u))); + v_back_ref_dist_minus_1 = ((uint32_t)((a_width * v_dy) + v_dx)); + } + v_p_end = (v_p + ((uint64_t)(((v_back_ref_len_minus_1 + 1u) * 4u)))); + v_dist4 = ((((uint64_t)(v_back_ref_dist_minus_1)) * 4u) + 4u); + if ((v_p_end > v_p_max) || (v_p_end > ((uint64_t)(a_dst.len))) || (v_p < v_dist4)) { + status = wuffs_base__make_status(wuffs_webp__error__bad_back_reference); + goto exit; + } + v_q = (v_p - v_dist4); + while ((v_q < v_p) && (v_p < v_p_end)) { + a_dst.ptr[v_p] = a_dst.ptr[v_q]; + v_p += 1u; + v_q += 1u; + } + v_x += (v_back_ref_len_minus_1 + 1u); + while (v_x >= a_width) { + v_x -= a_width; + v_y += 1u; + } + continue; + } else { + if ((v_color_cache_p > v_p) || (v_p > ((uint64_t)(a_dst.len)))) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_dst_buffer); + goto exit; + } + v_color_cache_pixels = wuffs_base__slice_u8__subslice_ij(a_dst, v_color_cache_p, v_p); + v_color_cache_p = v_p; + v_color_cache_shift = ((32u - self->private_impl.f_color_cache_bits) & 31u); + while (((uint64_t)(v_color_cache_pixels.len)) >= 4u) { + v_color = wuffs_base__peek_u32le__no_bounds_check(v_color_cache_pixels.ptr); + self->private_data.f_color_cache[((((uint32_t)(v_color * 506832829u)) >> v_color_cache_shift) & 2047u)] = v_color; + v_color_cache_pixels = wuffs_base__slice_u8__subslice_i(v_color_cache_pixels, 4u); + } + v_color = self->private_data.f_color_cache[((v_pixel_g - 280u) & 2047u)]; + } + if (v_p > ((uint64_t)(a_dst.len))) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_dst_buffer); + goto exit; + } + v_dst_pixel = wuffs_base__slice_u8__subslice_i(a_dst, v_p); + if (((uint64_t)(v_dst_pixel.len)) < 4u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_dst_buffer); + goto exit; + } + wuffs_base__poke_u32le__no_bounds_check(v_dst_pixel.ptr, v_color); + v_p += 4u; + v_x += 1u; + if (v_x == a_width) { + v_x = 0u; + v_y += 1u; } } - v_prev_row = v_curr_row; - v_y += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][3u]); - } - return wuffs_base__make_status(NULL); -} -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) + goto ok; + ok: + self->private_impl.p_decode_pixels_slow = 0; + goto exit; + } -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) + goto suspend; + suspend: + self->private_impl.p_decode_pixels_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_pixels_slow.v_p = v_p; + self->private_data.s_decode_pixels_slow.v_p_max = v_p_max; + self->private_data.s_decode_pixels_slow.v_tile_size_log2 = v_tile_size_log2; + self->private_data.s_decode_pixels_slow.v_width_in_tiles = v_width_in_tiles; + self->private_data.s_decode_pixels_slow.v_x = v_x; + self->private_data.s_decode_pixels_slow.v_y = v_y; + self->private_data.s_decode_pixels_slow.v_hg = v_hg; + self->private_data.s_decode_pixels_slow.v_node = v_node; + self->private_data.s_decode_pixels_slow.v_color = v_color; + self->private_data.s_decode_pixels_slow.v_back_ref_len_n_bits = v_back_ref_len_n_bits; + self->private_data.s_decode_pixels_slow.v_back_ref_len_minus_1 = v_back_ref_len_minus_1; + self->private_data.s_decode_pixels_slow.v_back_ref_dist_n_bits = v_back_ref_dist_n_bits; + self->private_data.s_decode_pixels_slow.v_back_ref_dist_premap_minus_1 = v_back_ref_dist_premap_minus_1; + self->private_data.s_decode_pixels_slow.v_color_cache_p = v_color_cache_p; -// ---------------- Status Codes Implementations + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -const char wuffs_tga__error__bad_header[] = "#tga: bad header"; -const char wuffs_tga__error__bad_run_length_encoding[] = "#tga: bad run length encoding"; -const char wuffs_tga__error__truncated_input[] = "#tga: truncated input"; -const char wuffs_tga__error__unsupported_tga_file[] = "#tga: unsupported TGA file"; + return status; +} -// ---------------- Private Consts +// -------- func webp.decoder.apply_transform_predictor -// ---------------- Private Initializer Prototypes +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_predictor( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix, + wuffs_base__slice_u8 a_tile_data) { + uint64_t v_w4 = 0; + wuffs_base__slice_u8 v_prev_row = {0}; + wuffs_base__slice_u8 v_curr_row = {0}; + uint32_t v_tile_size_log2 = 0; + uint32_t v_tiles_per_row = 0; + uint32_t v_mask = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint64_t v_t = 0; + wuffs_base__slice_u8 v_tile_data = {0}; + uint8_t v_mode = 0; + uint32_t v_l0 = 0; + uint32_t v_l1 = 0; + uint32_t v_l2 = 0; + uint32_t v_l3 = 0; + uint32_t v_c0 = 0; + uint32_t v_c1 = 0; + uint32_t v_c2 = 0; + uint32_t v_c3 = 0; + uint32_t v_t0 = 0; + uint32_t v_t1 = 0; + uint32_t v_t2 = 0; + uint32_t v_t3 = 0; + uint32_t v_sum_l = 0; + uint32_t v_sum_t = 0; + + if ((self->private_impl.f_width <= 0u) || (self->private_impl.f_height <= 0u)) { + return wuffs_base__make_empty_struct(); + } + v_w4 = ((uint64_t)((self->private_impl.f_width * 4u))); + v_curr_row = wuffs_base__utility__empty_slice_u8(); + if (v_w4 <= ((uint64_t)(a_pix.len))) { + v_curr_row = wuffs_base__slice_u8__subslice_j(a_pix, v_w4); + } + if (((uint64_t)(v_curr_row.len)) >= 4u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[3u] += 255u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + while (((uint64_t)(v_curr_row.len)) >= 8u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_curr_row.ptr[0u]; + v_curr_row.ptr[5u] += v_curr_row.ptr[1u]; + v_curr_row.ptr[6u] += v_curr_row.ptr[2u]; + v_curr_row.ptr[7u] += v_curr_row.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_curr_row = wuffs_base__slice_u8__subslice_i(v_curr_row, 4u); + } + v_tile_size_log2 = ((uint32_t)(self->private_impl.f_transform_tile_size_log2[0u])); + v_tiles_per_row = ((self->private_impl.f_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2); + v_mask = ((((uint32_t)(1u)) << v_tile_size_log2) - 1u); + v_y = 1u; + while (v_y < self->private_impl.f_height) { + v_t = ((uint64_t)((4u * (v_y >> v_tile_size_log2) * v_tiles_per_row))); + v_tile_data = wuffs_base__utility__empty_slice_u8(); + if (v_t <= ((uint64_t)(a_tile_data.len))) { + v_tile_data = wuffs_base__slice_u8__subslice_i(a_tile_data, v_t); + if (((uint64_t)(v_tile_data.len)) >= 4u) { + v_mode = ((uint8_t)(v_tile_data.ptr[1u] & 15u)); + v_tile_data = wuffs_base__slice_u8__subslice_i(v_tile_data, 4u); + } + } + if (v_w4 <= ((uint64_t)(a_pix.len))) { + v_prev_row = a_pix; + a_pix = wuffs_base__slice_u8__subslice_i(a_pix, v_w4); + v_curr_row = a_pix; + } + if ((((uint64_t)(v_prev_row.len)) >= 4u) && (((uint64_t)(v_curr_row.len)) >= 4u)) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[0u] += v_prev_row.ptr[0u]; + v_curr_row.ptr[1u] += v_prev_row.ptr[1u]; + v_curr_row.ptr[2u] += v_prev_row.ptr[2u]; + v_curr_row.ptr[3u] += v_prev_row.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + v_x = 1u; + while (v_x < self->private_impl.f_width) { + if (((v_x & v_mask) == 0u) && (((uint64_t)(v_tile_data.len)) >= 4u)) { + v_mode = ((uint8_t)(v_tile_data.ptr[1u] & 15u)); + v_tile_data = wuffs_base__slice_u8__subslice_i(v_tile_data, 4u); + } + if ((((uint64_t)(v_prev_row.len)) < 12u) || (((uint64_t)(v_curr_row.len)) < 8u)) { + break; + } + if (v_mode == 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[7u] += 255u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 1u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_curr_row.ptr[0u]; + v_curr_row.ptr[5u] += v_curr_row.ptr[1u]; + v_curr_row.ptr[6u] += v_curr_row.ptr[2u]; + v_curr_row.ptr[7u] += v_curr_row.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 2u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_prev_row.ptr[4u]; + v_curr_row.ptr[5u] += v_prev_row.ptr[5u]; + v_curr_row.ptr[6u] += v_prev_row.ptr[6u]; + v_curr_row.ptr[7u] += v_prev_row.ptr[7u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 3u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_prev_row.ptr[8u]; + v_curr_row.ptr[5u] += v_prev_row.ptr[9u]; + v_curr_row.ptr[6u] += v_prev_row.ptr[10u]; + v_curr_row.ptr[7u] += v_prev_row.ptr[11u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 4u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_prev_row.ptr[0u]; + v_curr_row.ptr[5u] += v_prev_row.ptr[1u]; + v_curr_row.ptr[6u] += v_prev_row.ptr[2u]; + v_curr_row.ptr[7u] += v_prev_row.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 5u) { + v_l0 = ((((uint32_t)(v_curr_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[8u]))) / 2u); + v_l1 = ((((uint32_t)(v_curr_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[9u]))) / 2u); + v_l2 = ((((uint32_t)(v_curr_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[10u]))) / 2u); + v_l3 = ((((uint32_t)(v_curr_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[11u]))) / 2u); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((v_l0 + ((uint32_t)(v_prev_row.ptr[4u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((v_l1 + ((uint32_t)(v_prev_row.ptr[5u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((v_l2 + ((uint32_t)(v_prev_row.ptr[6u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((v_l3 + ((uint32_t)(v_prev_row.ptr[7u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 6u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[0u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[1u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[2u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[3u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 7u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[4u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[5u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[6u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[7u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 8u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[4u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[5u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[6u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[7u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 9u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[4u])) + ((uint32_t)(v_prev_row.ptr[8u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[5u])) + ((uint32_t)(v_prev_row.ptr[9u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[6u])) + ((uint32_t)(v_prev_row.ptr[10u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[7u])) + ((uint32_t)(v_prev_row.ptr[11u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 10u) { + v_l0 = ((((uint32_t)(v_curr_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[0u]))) / 2u); + v_l1 = ((((uint32_t)(v_curr_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[1u]))) / 2u); + v_l2 = ((((uint32_t)(v_curr_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[2u]))) / 2u); + v_l3 = ((((uint32_t)(v_curr_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[3u]))) / 2u); + v_t0 = ((((uint32_t)(v_prev_row.ptr[4u])) + ((uint32_t)(v_prev_row.ptr[8u]))) / 2u); + v_t1 = ((((uint32_t)(v_prev_row.ptr[5u])) + ((uint32_t)(v_prev_row.ptr[9u]))) / 2u); + v_t2 = ((((uint32_t)(v_prev_row.ptr[6u])) + ((uint32_t)(v_prev_row.ptr[10u]))) / 2u); + v_t3 = ((((uint32_t)(v_prev_row.ptr[7u])) + ((uint32_t)(v_prev_row.ptr[11u]))) / 2u); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((v_l0 + v_t0) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((v_l1 + v_t1) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((v_l2 + v_t2) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((v_l3 + v_t3) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 11u) { + v_l0 = ((uint32_t)(v_curr_row.ptr[0u])); + v_l1 = ((uint32_t)(v_curr_row.ptr[1u])); + v_l2 = ((uint32_t)(v_curr_row.ptr[2u])); + v_l3 = ((uint32_t)(v_curr_row.ptr[3u])); + v_c0 = ((uint32_t)(v_prev_row.ptr[0u])); + v_c1 = ((uint32_t)(v_prev_row.ptr[1u])); + v_c2 = ((uint32_t)(v_prev_row.ptr[2u])); + v_c3 = ((uint32_t)(v_prev_row.ptr[3u])); + v_t0 = ((uint32_t)(v_prev_row.ptr[4u])); + v_t1 = ((uint32_t)(v_prev_row.ptr[5u])); + v_t2 = ((uint32_t)(v_prev_row.ptr[6u])); + v_t3 = ((uint32_t)(v_prev_row.ptr[7u])); + v_sum_l = (wuffs_webp__decoder__absolute_difference(self, v_c0, v_t0) + + wuffs_webp__decoder__absolute_difference(self, v_c1, v_t1) + + wuffs_webp__decoder__absolute_difference(self, v_c2, v_t2) + + wuffs_webp__decoder__absolute_difference(self, v_c3, v_t3)); + v_sum_t = (wuffs_webp__decoder__absolute_difference(self, v_c0, v_l0) + + wuffs_webp__decoder__absolute_difference(self, v_c1, v_l1) + + wuffs_webp__decoder__absolute_difference(self, v_c2, v_l2) + + wuffs_webp__decoder__absolute_difference(self, v_c3, v_l3)); + if (v_sum_l < v_sum_t) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(v_l0)); + v_curr_row.ptr[5u] += ((uint8_t)(v_l1)); + v_curr_row.ptr[6u] += ((uint8_t)(v_l2)); + v_curr_row.ptr[7u] += ((uint8_t)(v_l3)); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(v_t0)); + v_curr_row.ptr[5u] += ((uint8_t)(v_t1)); + v_curr_row.ptr[6u] += ((uint8_t)(v_t2)); + v_curr_row.ptr[7u] += ((uint8_t)(v_t3)); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + } else if (v_mode == 12u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += wuffs_webp__decoder__mode12(self, v_curr_row.ptr[0u], v_prev_row.ptr[4u], v_prev_row.ptr[0u]); + v_curr_row.ptr[5u] += wuffs_webp__decoder__mode12(self, v_curr_row.ptr[1u], v_prev_row.ptr[5u], v_prev_row.ptr[1u]); + v_curr_row.ptr[6u] += wuffs_webp__decoder__mode12(self, v_curr_row.ptr[2u], v_prev_row.ptr[6u], v_prev_row.ptr[2u]); + v_curr_row.ptr[7u] += wuffs_webp__decoder__mode12(self, v_curr_row.ptr[3u], v_prev_row.ptr[7u], v_prev_row.ptr[3u]); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 13u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += wuffs_webp__decoder__mode13(self, v_curr_row.ptr[0u], v_prev_row.ptr[4u], v_prev_row.ptr[0u]); + v_curr_row.ptr[5u] += wuffs_webp__decoder__mode13(self, v_curr_row.ptr[1u], v_prev_row.ptr[5u], v_prev_row.ptr[1u]); + v_curr_row.ptr[6u] += wuffs_webp__decoder__mode13(self, v_curr_row.ptr[2u], v_prev_row.ptr[6u], v_prev_row.ptr[2u]); + v_curr_row.ptr[7u] += wuffs_webp__decoder__mode13(self, v_curr_row.ptr[3u], v_prev_row.ptr[7u], v_prev_row.ptr[3u]); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + v_curr_row = wuffs_base__slice_u8__subslice_i(v_curr_row, 4u); + v_prev_row = wuffs_base__slice_u8__subslice_i(v_prev_row, 4u); + v_x += 1u; + } + v_y += 1u; + } + return wuffs_base__make_empty_struct(); +} -// ---------------- Private Function Prototypes +// -------- func webp.decoder.absolute_difference WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_tga__decoder__do_decode_image_config( - wuffs_tga__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); +static uint32_t +wuffs_webp__decoder__absolute_difference( + const wuffs_webp__decoder* self, + uint32_t a_a, + uint32_t a_b) { + if (a_a < a_b) { + return (a_b - a_a); + } + return (a_a - a_b); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_tga__decoder__do_decode_frame_config( - wuffs_tga__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); +// -------- func webp.decoder.mode12 WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_tga__decoder__do_decode_frame( - wuffs_tga__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); +static uint8_t +wuffs_webp__decoder__mode12( + const wuffs_webp__decoder* self, + uint8_t a_l, + uint8_t a_t, + uint8_t a_tl) { + uint32_t v_v = 0; -// ---------------- VTables + v_v = ((uint32_t)((((uint32_t)(a_l)) + ((uint32_t)(a_t))) - ((uint32_t)(a_tl)))); + if (v_v < 256u) { + return ((uint8_t)(v_v)); + } else if (v_v < 512u) { + return 255u; + } + return 0u; +} -const wuffs_base__image_decoder__func_ptrs -wuffs_tga__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_tga__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_tga__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_tga__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_tga__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_tga__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_tga__decoder__history_retain_length), - (uint32_t(*)(const void*))(&wuffs_tga__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_tga__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_tga__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_tga__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_tga__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_tga__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_tga__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_tga__decoder__workbuf_len), -}; +// -------- func webp.decoder.mode13 -// ---------------- Initializer Implementations +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_webp__decoder__mode13( + const wuffs_webp__decoder* self, + uint8_t a_l, + uint8_t a_t, + uint8_t a_tl) { + uint32_t v_x = 0; + uint32_t v_y = 0; + uint32_t v_z = 0; + uint32_t v_v = 0; -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_tga__decoder__initialize( - wuffs_tga__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + v_x = ((((uint32_t)(a_l)) + ((uint32_t)(a_t))) / 2u); + v_y = ((uint32_t)(a_tl)); + v_z = ((uint32_t)(v_x - v_y)); + v_v = ((uint32_t)(v_x + wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(v_z + (v_z >> 31u))), 1u))); + if (v_v < 256u) { + return ((uint8_t)(v_v)); + } else if (v_v < 512u) { + return 255u; } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + return 0u; +} + +// -------- func webp.decoder.apply_transform_cross_color + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_cross_color( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix, + wuffs_base__slice_u8 a_tile_data) { + uint32_t v_tile_size_log2 = 0; + uint32_t v_tiles_per_row = 0; + uint32_t v_mask = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint64_t v_t = 0; + wuffs_base__slice_u8 v_tile_data = {0}; + uint32_t v_g2r = 0; + uint32_t v_g2b = 0; + uint32_t v_r2b = 0; + uint8_t v_b = 0; + uint8_t v_g = 0; + uint8_t v_r = 0; + + v_tile_size_log2 = ((uint32_t)(self->private_impl.f_transform_tile_size_log2[1u])); + v_tiles_per_row = ((self->private_impl.f_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2); + v_mask = ((((uint32_t)(1u)) << v_tile_size_log2) - 1u); + v_y = 0u; + while (v_y < self->private_impl.f_height) { + v_t = ((uint64_t)((4u * (v_y >> v_tile_size_log2) * v_tiles_per_row))); + v_tile_data = wuffs_base__utility__empty_slice_u8(); + if (v_t <= ((uint64_t)(a_tile_data.len))) { + v_tile_data = wuffs_base__slice_u8__subslice_i(a_tile_data, v_t); + } + v_x = 0u; + while (v_x < self->private_impl.f_width) { + if (((v_x & v_mask) == 0u) && (((uint64_t)(v_tile_data.len)) >= 4u)) { + v_g2r = wuffs_base__utility__sign_extend_convert_u8_u32(v_tile_data.ptr[0u]); + v_g2b = wuffs_base__utility__sign_extend_convert_u8_u32(v_tile_data.ptr[1u]); + v_r2b = wuffs_base__utility__sign_extend_convert_u8_u32(v_tile_data.ptr[2u]); + v_tile_data = wuffs_base__slice_u8__subslice_i(v_tile_data, 4u); + } + if (((uint64_t)(a_pix.len)) >= 4u) { + v_b = a_pix.ptr[0u]; + v_g = a_pix.ptr[1u]; + v_r = a_pix.ptr[2u]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_r += ((uint8_t)((((uint32_t)(wuffs_base__utility__sign_extend_convert_u8_u32(v_g) * v_g2r)) >> 5u))); + v_b += ((uint8_t)((((uint32_t)(wuffs_base__utility__sign_extend_convert_u8_u32(v_g) * v_g2b)) >> 5u))); + v_b += ((uint8_t)((((uint32_t)(wuffs_base__utility__sign_extend_convert_u8_u32(v_r) * v_r2b)) >> 5u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + a_pix.ptr[0u] = v_b; + a_pix.ptr[2u] = v_r; + a_pix = wuffs_base__slice_u8__subslice_i(a_pix, 4u); + } + v_x += 1u; + } + v_y += 1u; } + return wuffs_base__make_empty_struct(); +} + +// -------- func webp.decoder.apply_transform_subtract_green + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_subtract_green( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix) { + wuffs_base__slice_u8 v_p = {0}; + uint8_t v_g = 0; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) + { + wuffs_base__slice_u8 i_slice_p = a_pix; + v_p.ptr = i_slice_p.ptr; + v_p.len = 4; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 4) * 4)); + while (v_p.ptr < i_end0_p) { + v_g = v_p.ptr[1u]; +#if defined(__GNUC__) #pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#pragma GCC diagnostic ignored "-Wconversion" #endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) + v_p.ptr[0u] += v_g; + v_p.ptr[2u] += v_g; +#if defined(__GNUC__) #pragma GCC diagnostic pop #endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + v_p.ptr += 4; } + v_p.len = 0; } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_tga__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); + return wuffs_base__make_empty_struct(); } -wuffs_tga__decoder* -wuffs_tga__decoder__alloc(void) { - wuffs_tga__decoder* x = - (wuffs_tga__decoder*)(calloc(sizeof(wuffs_tga__decoder), 1)); - if (!x) { - return NULL; +// -------- func webp.decoder.apply_transform_color_indexing + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_color_indexing( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix) { + uint32_t v_tile_size_log2 = 0; + uint32_t v_bits_per_pixel = 0; + uint32_t v_x_mask = 0; + uint32_t v_s_mask = 0; + uint64_t v_src_index = 0; + uint32_t v_y = 0; + uint64_t v_di = 0; + uint64_t v_dj = 0; + wuffs_base__slice_u8 v_dst = {0}; + uint32_t v_x = 0; + uint32_t v_s = 0; + uint32_t v_p = 0; + uint8_t v_p0 = 0; + uint8_t v_p1 = 0; + uint8_t v_p2 = 0; + uint8_t v_p3 = 0; + + v_tile_size_log2 = ((uint32_t)(self->private_impl.f_transform_tile_size_log2[3u])); + if (v_tile_size_log2 == 0u) { + { + wuffs_base__slice_u8 i_slice_dst = a_pix; + v_dst.ptr = i_slice_dst.ptr; + v_dst.len = 4; + const uint8_t* i_end0_dst = wuffs_private_impl__ptr_u8_plus_len(v_dst.ptr, (((i_slice_dst.len - (size_t)(v_dst.ptr - i_slice_dst.ptr)) / 4) * 4)); + while (v_dst.ptr < i_end0_dst) { + v_p = (((uint32_t)(v_dst.ptr[1u])) * 4u); + v_p0 = self->private_data.f_palette[(v_p + 0u)]; + v_p1 = self->private_data.f_palette[(v_p + 1u)]; + v_p2 = self->private_data.f_palette[(v_p + 2u)]; + v_p3 = self->private_data.f_palette[(v_p + 3u)]; + v_dst.ptr[0u] = v_p0; + v_dst.ptr[1u] = v_p1; + v_dst.ptr[2u] = v_p2; + v_dst.ptr[3u] = v_p3; + v_dst.ptr += 4; + } + v_dst.len = 0; + } + return wuffs_base__make_empty_struct(); } - if (wuffs_tga__decoder__initialize( - x, sizeof(wuffs_tga__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + v_bits_per_pixel = (((uint32_t)(8u)) >> v_tile_size_log2); + v_x_mask = ((((uint32_t)(1u)) << v_tile_size_log2) - 1u); + v_s_mask = ((((uint32_t)(1u)) << v_bits_per_pixel) - 1u); + v_src_index = ((uint64_t)((self->private_impl.f_workbuf_offset_for_color_indexing + 1u))); + v_y = 0u; + while (v_y < self->private_impl.f_height) { + v_di = ((uint64_t)((4u * (v_y + 0u) * self->private_impl.f_width))); + v_dj = ((uint64_t)((4u * (v_y + 1u) * self->private_impl.f_width))); + if ((v_di > v_dj) || (v_dj > ((uint64_t)(a_pix.len)))) { + break; + } + v_dst = wuffs_base__slice_u8__subslice_ij(a_pix, v_di, v_dj); + v_x = 0u; + while (((uint64_t)(v_dst.len)) >= 4u) { + if (((v_x & v_x_mask) == 0u) && (v_src_index < ((uint64_t)(a_pix.len)))) { + v_s = ((uint32_t)(a_pix.ptr[v_src_index])); + v_src_index += 4u; + } + v_p = ((v_s & v_s_mask) * 4u); + v_s >>= v_bits_per_pixel; + v_p0 = self->private_data.f_palette[(v_p + 0u)]; + v_p1 = self->private_data.f_palette[(v_p + 1u)]; + v_p2 = self->private_data.f_palette[(v_p + 2u)]; + v_p3 = self->private_data.f_palette[(v_p + 3u)]; + v_dst.ptr[0u] = v_p0; + v_dst.ptr[1u] = v_p1; + v_dst.ptr[2u] = v_p2; + v_dst.ptr[3u] = v_p3; + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, 4u); + v_x += 1u; + } + v_y += 1u; } - return x; -} - -size_t -sizeof__wuffs_tga__decoder(void) { - return sizeof(wuffs_tga__decoder); + return wuffs_base__make_empty_struct(); } -// ---------------- Function Implementations - -// -------- func tga.decoder.get_quirk +// -------- func webp.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__get_quirk( - const wuffs_tga__decoder* self, +wuffs_webp__decoder__get_quirk( + const wuffs_webp__decoder* self, uint32_t a_key) { if (!self) { return 0; @@ -59162,12 +73627,12 @@ wuffs_tga__decoder__get_quirk( return 0u; } -// -------- func tga.decoder.set_quirk +// -------- func webp.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__set_quirk( - wuffs_tga__decoder* self, +wuffs_webp__decoder__set_quirk( + wuffs_webp__decoder* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -59183,12 +73648,12 @@ wuffs_tga__decoder__set_quirk( return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func tga.decoder.decode_image_config +// -------- func webp.decoder.decode_image_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_image_config( - wuffs_tga__decoder* self, +wuffs_webp__decoder__decode_image_config( + wuffs_webp__decoder* self, wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { @@ -59214,17 +73679,17 @@ wuffs_tga__decoder__decode_image_config( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_image_config(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_webp__decoder__do_decode_image_config(self, a_dst, a_src); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_tga__error__truncated_input); + status = wuffs_base__make_status(wuffs_webp__error__truncated_input); goto exit; } status = v_status; @@ -59232,13 +73697,13 @@ wuffs_tga__decoder__decode_image_config( } ok: - self->private_impl.p_decode_image_config[0] = 0; + self->private_impl.p_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; @@ -59249,19 +73714,19 @@ wuffs_tga__decoder__decode_image_config( return status; } -// -------- func tga.decoder.do_decode_image_config +// -------- func webp.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_tga__decoder__do_decode_image_config( - wuffs_tga__decoder* self, +wuffs_webp__decoder__do_decode_image_config( + wuffs_webp__decoder* self, wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_c = 0; - uint32_t v_c5 = 0; - uint32_t v_i = 0; + uint32_t v_c32 = 0; + uint64_t v_r_mark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -59274,10 +73739,7 @@ wuffs_tga__decoder__do_decode_image_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config[0]; - if (coro_susp_point) { - v_i = self->private_data.s_do_decode_image_config[0].v_i; - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; @@ -59287,411 +73749,446 @@ wuffs_tga__decoder__do_decode_image_config( } { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - self->private_impl.f_header_id_length = t_0; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - self->private_impl.f_header_color_map_type = t_1; - } - if (self->private_impl.f_header_color_map_type > 1u) { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - self->private_impl.f_header_image_type = t_2; - } - if ((self->private_impl.f_header_image_type == 1u) || - (self->private_impl.f_header_image_type == 2u) || - (self->private_impl.f_header_image_type == 3u) || - (self->private_impl.f_header_image_type == 9u) || - (self->private_impl.f_header_image_type == 10u) || - (self->private_impl.f_header_image_type == 11u)) { - } else { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - uint16_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_3 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - iop_a_src += 2; + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; - if (num_bits_3 == 8) { - t_3 = ((uint16_t)(*scratch)); + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); break; } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)) << 56; + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; } } - self->private_impl.f_header_color_map_first_entry_index = t_3; + v_c32 = t_0; + } + if (v_c32 != 1179011410u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint16_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_4 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - iop_a_src += 2; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; - if (num_bits_4 == 8) { - t_4 = ((uint16_t)(*scratch)); + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); break; } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)) << 56; + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; } } - self->private_impl.f_header_color_map_length = t_4; + self->private_impl.f_riff_chunk_length = t_1; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - self->private_impl.f_header_color_map_entry_size = t_5; + if ((self->private_impl.f_riff_chunk_length & 1u) != 0u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; } - if (self->private_impl.f_header_color_map_type != 0u) { - if ((self->private_impl.f_header_color_map_first_entry_index != 0u) || (self->private_impl.f_header_color_map_length > 256u)) { - status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); - goto exit; - } else if ((self->private_impl.f_header_color_map_entry_size != 15u) && - (self->private_impl.f_header_color_map_entry_size != 16u) && - (self->private_impl.f_header_color_map_entry_size != 24u) && - (self->private_impl.f_header_color_map_entry_size != 32u)) { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); - goto exit; + while (true) { + { + const bool o_0_closed_a_src = a_src->meta.closed; + const uint8_t* o_0_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_riff_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_webp__decoder__do_decode_image_config_limited(self, a_src); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_riff_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + io2_a_src = o_0_io2_a_src; + if (a_src) { + a_src->meta.closed = o_0_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } } - } else { - if ((self->private_impl.f_header_color_map_first_entry_index != 0u) || (self->private_impl.f_header_color_map_length != 0u) || (self->private_impl.f_header_color_map_entry_size != 0u)) { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if ( ! wuffs_base__status__is_suspension(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } else if ((v_status.repr == wuffs_base__suspension__short_read) && (self->private_impl.f_riff_chunk_length == 0u)) { + status = wuffs_base__make_status(wuffs_webp__error__short_chunk); goto exit; } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); } - self->private_data.s_do_decode_image_config[0].scratch = 4u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (self->private_data.s_do_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + false); } - iop_a_src += self->private_data.s_do_decode_image_config[0].scratch; + self->private_impl.f_call_sequence = 32u; + + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func webp.decoder.do_decode_image_config_limited + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config_limited( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_c32 = 0; + uint64_t v_r_mark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config_limited; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - uint32_t t_6; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_6 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + self->private_data.s_do_decode_image_config_limited.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_6 = ((uint32_t)(*scratch >> 56)); + uint64_t* scratch = &self->private_data.s_do_decode_image_config_limited.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_6; - if (num_bits_6 == 8) { - t_6 = ((uint32_t)(*scratch)); + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); break; } - num_bits_6 += 8u; - *scratch |= ((uint64_t)(num_bits_6)) << 56; + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; } } - self->private_impl.f_width = t_6; + v_c32 = t_0; + } + if (v_c32 != 1346520407u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - uint32_t t_7; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_7 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + self->private_data.s_do_decode_image_config_limited.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); + uint64_t* scratch = &self->private_data.s_do_decode_image_config_limited.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; - if (num_bits_7 == 8) { - t_7 = ((uint32_t)(*scratch)); + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); break; } - num_bits_7 += 8u; - *scratch |= ((uint64_t)(num_bits_7)) << 56; + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; } } - self->private_impl.f_height = t_7; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_8 = *iop_a_src++; - self->private_impl.f_header_pixel_depth = t_8; + v_c32 = t_1; } - if ((self->private_impl.f_header_pixel_depth != 1u) && - (self->private_impl.f_header_pixel_depth != 8u) && - (self->private_impl.f_header_pixel_depth != 15u) && - (self->private_impl.f_header_pixel_depth != 16u) && - (self->private_impl.f_header_pixel_depth != 24u) && - (self->private_impl.f_header_pixel_depth != 32u)) { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); + if (v_c32 == 540561494u) { + status = wuffs_base__make_status(wuffs_webp__error__unsupported_webp_file); goto exit; - } - if ((self->private_impl.f_header_image_type | 8u) == 9u) { - self->private_impl.f_scratch_bytes_per_pixel = 1u; - self->private_impl.f_src_bytes_per_pixel = 1u; - self->private_impl.f_src_pixfmt = 2164523016u; - self->private_impl.f_opaque = ((self->private_impl.f_header_color_map_entry_size == 15u) || (self->private_impl.f_header_color_map_entry_size == 24u)); - } else if ((self->private_impl.f_header_image_type | 8u) == 10u) { - if ((self->private_impl.f_header_pixel_depth == 15u) || (self->private_impl.f_header_pixel_depth == 16u)) { - self->private_impl.f_scratch_bytes_per_pixel = 4u; - self->private_impl.f_src_bytes_per_pixel = 0u; - self->private_impl.f_src_pixfmt = 2164295816u; - } else if (self->private_impl.f_header_pixel_depth == 24u) { - self->private_impl.f_scratch_bytes_per_pixel = 3u; - self->private_impl.f_src_bytes_per_pixel = 3u; - self->private_impl.f_src_pixfmt = 2147485832u; - self->private_impl.f_opaque = true; - } else if (self->private_impl.f_header_pixel_depth == 32u) { - self->private_impl.f_scratch_bytes_per_pixel = 4u; - self->private_impl.f_src_bytes_per_pixel = 4u; - self->private_impl.f_src_pixfmt = 2164295816u; - } else { - status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); - goto exit; + } else if (v_c32 == 1278758998u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config_limited.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config_limited.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + self->private_impl.f_sub_chunk_length = t_2; } - } else { - if (self->private_impl.f_header_pixel_depth == 8u) { - self->private_impl.f_scratch_bytes_per_pixel = 1u; - self->private_impl.f_src_bytes_per_pixel = 1u; - self->private_impl.f_src_pixfmt = 536870920u; - self->private_impl.f_opaque = true; - } else { - status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); + if (self->private_impl.f_sub_chunk_length < 4u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); goto exit; } - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_9 = *iop_a_src++; - self->private_impl.f_header_image_descriptor = t_9; - } - if ((self->private_impl.f_header_image_descriptor & 16u) != 0u) { - status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); - goto exit; - } - self->private_data.s_do_decode_image_config[0].scratch = ((uint32_t)(self->private_impl.f_header_id_length)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - if (self->private_data.s_do_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_image_config[0].scratch; - if (self->private_impl.f_header_color_map_type != 0u) { - while (v_i < ((uint32_t)(self->private_impl.f_header_color_map_length))) { - if (self->private_impl.f_header_color_map_entry_size == 24u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); - uint32_t t_10; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { - t_10 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - iop_a_src += 3; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_10 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_10; - if (num_bits_10 == 16) { - t_10 = ((uint32_t)(*scratch)); - break; - } - num_bits_10 += 8u; - *scratch |= ((uint64_t)(num_bits_10)) << 56; - } - } - v_c = t_10; + self->private_impl.f_sub_chunk_has_padding = ((self->private_impl.f_sub_chunk_length & 1u) != 0u); + while (true) { + { + const bool o_0_closed_a_src = a_src->meta.closed; + const uint8_t* o_0_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_sub_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; } - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)((v_c >> 0u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)((v_c >> 8u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)((v_c >> 16u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = 255u; - } else if (self->private_impl.f_header_color_map_entry_size == 32u) { + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); - uint32_t t_11; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_11 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_11 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_11; - if (num_bits_11 == 24) { - t_11 = ((uint32_t)(*scratch)); - break; - } - num_bits_11 += 8u; - *scratch |= ((uint64_t)(num_bits_11)) << 56; - } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_c = t_11; - } - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)((v_c >> 0u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)((v_c >> 8u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)((v_c >> 16u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = ((uint8_t)((v_c >> 24u))); - } else { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); - uint32_t t_12; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_12 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config[0].scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config[0].scratch; - uint32_t num_bits_12 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_12; - if (num_bits_12 == 8) { - t_12 = ((uint32_t)(*scratch)); - break; - } - num_bits_12 += 8u; - *scratch |= ((uint64_t)(num_bits_12)) << 56; - } + wuffs_base__status t_3 = wuffs_webp__decoder__do_decode_image_config_limited_vp8l(self, a_src); + v_status = t_3; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - v_c = t_12; } - v_c5 = (31u & (v_c >> 0u)); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 5u)); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 10u)); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = 255u; + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_sub_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + io2_a_src = o_0_io2_a_src; + if (a_src) { + a_src->meta.closed = o_0_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if ( ! wuffs_base__status__is_suspension(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } else if ((v_status.repr == wuffs_base__suspension__short_read) && (self->private_impl.f_sub_chunk_length == 0u)) { + status = wuffs_base__make_status(wuffs_webp__error__short_chunk); + goto exit; } - v_i += 1u; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); } - while (v_i < 256u) { - self->private_data.f_src_palette[((v_i * 4u) + 0u)] = 0u; - self->private_data.f_src_palette[((v_i * 4u) + 1u)] = 0u; - self->private_data.f_src_palette[((v_i * 4u) + 2u)] = 0u; - self->private_data.f_src_palette[((v_i * 4u) + 3u)] = 255u; - v_i += 1u; + } else if (v_c32 == 1480085590u) { + status = wuffs_base__make_status(wuffs_webp__error__unsupported_webp_file); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; + } + + ok: + self->private_impl.p_do_decode_image_config_limited = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config_limited = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func webp.decoder.do_decode_image_config_limited_vp8l + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config_limited_vp8l( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_c32 = 0; + uint32_t v_transform_size = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config_limited_vp8l; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint32_t t_0 = *iop_a_src++; + v_c32 = t_0; } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - self->private_impl.f_src_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - self->private_impl.f_opaque); + if (v_c32 != 47u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; } - self->private_impl.f_call_sequence = 32u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config_limited_vp8l.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config_limited_vp8l.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_c32 = t_1; + } + self->private_impl.f_width = ((v_c32 & 16383u) + 1u); + v_c32 >>= 14u; + self->private_impl.f_height = ((v_c32 & 16383u) + 1u); + v_c32 >>= 14u; + self->private_impl.f_pixfmt = 2415954056u; + if ((v_c32 & 1u) != 0u) { + self->private_impl.f_pixfmt = 2164295816u; + } + v_c32 >>= 1u; + if (v_c32 != 0u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; + } + v_transform_size = (4u * ((self->private_impl.f_width + 3u) >> 2u) * ((self->private_impl.f_height + 3u) >> 2u)); + self->private_impl.f_workbuf_offset_for_transform[0u] = ((4u * self->private_impl.f_width * self->private_impl.f_height) + (0u * v_transform_size)); + self->private_impl.f_workbuf_offset_for_transform[1u] = ((4u * self->private_impl.f_width * self->private_impl.f_height) + (1u * v_transform_size)); + self->private_impl.f_workbuf_offset_for_transform[2u] = ((4u * self->private_impl.f_width * self->private_impl.f_height) + (2u * v_transform_size)); + self->private_impl.f_workbuf_offset_for_transform[3u] = ((4u * self->private_impl.f_width * self->private_impl.f_height) + (3u * v_transform_size)); goto ok; ok: - self->private_impl.p_do_decode_image_config[0] = 0; + self->private_impl.p_do_decode_image_config_limited_vp8l = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_image_config[0].v_i = v_i; + self->private_impl.p_do_decode_image_config_limited_vp8l = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -59702,12 +74199,12 @@ wuffs_tga__decoder__do_decode_image_config( return status; } -// -------- func tga.decoder.decode_frame_config +// -------- func webp.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_frame_config( - wuffs_tga__decoder* self, +wuffs_webp__decoder__decode_frame_config( + wuffs_webp__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { @@ -59733,17 +74230,17 @@ wuffs_tga__decoder__decode_frame_config( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_frame_config(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_webp__decoder__do_decode_frame_config(self, a_dst, a_src); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_tga__error__truncated_input); + status = wuffs_base__make_status(wuffs_webp__error__truncated_input); goto exit; } status = v_status; @@ -59751,13 +74248,13 @@ wuffs_tga__decoder__decode_frame_config( } ok: - self->private_impl.p_decode_frame_config[0] = 0; + self->private_impl.p_decode_frame_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; goto exit; @@ -59768,12 +74265,12 @@ wuffs_tga__decoder__decode_frame_config( return status; } -// -------- func tga.decoder.do_decode_frame_config +// -------- func webp.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_tga__decoder__do_decode_frame_config( - wuffs_tga__decoder* self, +wuffs_webp__decoder__do_decode_frame_config( + wuffs_webp__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); @@ -59789,7 +74286,7 @@ wuffs_tga__decoder__do_decode_frame_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config[0]; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; @@ -59799,7 +74296,7 @@ wuffs_tga__decoder__do_decode_frame_config( a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_tga__decoder__do_decode_image_config(self, NULL, a_src); + status = wuffs_webp__decoder__do_decode_image_config(self, NULL, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; } @@ -59831,20 +74328,20 @@ wuffs_tga__decoder__do_decode_frame_config( 0u, self->private_impl.f_frame_config_io_position, 0u, - self->private_impl.f_opaque, false, - 4278190080u); + false, + 0u); } self->private_impl.f_call_sequence = 64u; ok: - self->private_impl.p_do_decode_frame_config[0] = 0; + self->private_impl.p_do_decode_frame_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -59855,12 +74352,12 @@ wuffs_tga__decoder__do_decode_frame_config( return status; } -// -------- func tga.decoder.decode_frame +// -------- func webp.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_frame( - wuffs_tga__decoder* self, +wuffs_webp__decoder__decode_frame( + wuffs_webp__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__pixel_blend a_blend, @@ -59889,13 +74386,13 @@ wuffs_tga__decoder__decode_frame( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_frame(self, + wuffs_base__status t_0 = wuffs_webp__decoder__do_decode_frame(self, a_dst, a_src, a_blend, @@ -59904,64 +74401,627 @@ wuffs_tga__decoder__decode_frame( v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_tga__error__truncated_input); + status = wuffs_base__make_status(wuffs_webp__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func webp.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_frame( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_has_more = 0; + uint32_t v_width = 0; + wuffs_base__slice_u8 v_dst = {0}; + wuffs_base__slice_u8 v_tile_data = {0}; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + wuffs_base__slice_u8 v_pix = {0}; + uint32_t v_which = 0; + uint32_t v_transform_type = 0; + uint64_t v_ti = 0; + uint64_t v_tj = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + if (coro_susp_point) { + v_width = self->private_data.s_do_decode_frame.v_width; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_webp__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + self->private_impl.f_seen_transform[0u] = false; + self->private_impl.f_seen_transform[1u] = false; + self->private_impl.f_seen_transform[2u] = false; + self->private_impl.f_seen_transform[3u] = false; + self->private_impl.f_n_transforms = 0u; + while (true) { + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_has_more = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + if (v_has_more == 0u) { + break; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_webp__decoder__decode_transform(self, a_src, a_workbuf); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + v_width = self->private_impl.f_width; + if (self->private_impl.f_seen_transform[3u]) { + v_width = self->private_impl.f_color_indexing_width; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_webp__decoder__decode_color_cache_parameters(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_overall_color_cache_bits = self->private_impl.f_color_cache_bits; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + status = wuffs_webp__decoder__decode_hg_table(self, a_src, v_width, a_workbuf); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_color_cache_bits = self->private_impl.f_overall_color_cache_bits; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + status = wuffs_webp__decoder__decode_huffman_groups(self, a_src, self->private_impl.f_overall_n_huffman_groups); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + while (true) { + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_color_indexing)) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u]))) || + (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))) || + (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u])) > ((uint64_t)(a_workbuf.len))) || + (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + v_dst = wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_color_indexing)), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u]))); + v_tile_data = wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_1 = wuffs_webp__decoder__decode_pixels(self, + v_dst, + a_src, + v_width, + self->private_impl.f_height, + v_tile_data, + self->private_impl.f_overall_tile_size_log2); + v_status = t_1; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + } + if (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(a_workbuf.len))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + v_pix = wuffs_base__slice_u8__subslice_j(a_workbuf, ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u]))); + v_which = self->private_impl.f_n_transforms; + while (v_which > 0u) { + v_which -= 1u; + v_transform_type = ((uint32_t)(self->private_impl.f_transform_type[v_which])); + v_tile_data = wuffs_base__utility__empty_slice_u8(); + if (v_transform_type < 2u) { + v_ti = ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 1u)])); + v_tj = ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 2u)])); + if ((v_ti <= v_tj) && (v_tj <= ((uint64_t)(a_workbuf.len)))) { + v_tile_data = wuffs_base__slice_u8__subslice_ij(a_workbuf, v_ti, v_tj); + } + } + if (v_transform_type == 0u) { + wuffs_webp__decoder__apply_transform_predictor(self, v_pix, v_tile_data); + } else if (v_transform_type == 1u) { + wuffs_webp__decoder__apply_transform_cross_color(self, v_pix, v_tile_data); + } else if (v_transform_type == 2u) { + wuffs_webp__decoder__apply_transform_subtract_green(self, v_pix); + } else { + wuffs_webp__decoder__apply_transform_color_indexing(self, v_pix); + v_width = self->private_impl.f_width; + } + } + v_status = wuffs_webp__decoder__swizzle(self, a_dst, v_pix, a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame.v_width = v_width; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func webp.decoder.decode_transform + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_transform( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint8_t v_c8 = 0; + uint32_t v_transform_type = 0; + uint32_t v_tile_size_log2 = 0; + wuffs_base__slice_u8 v_p = {0}; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_transform; + if (coro_susp_point) { + v_transform_type = self->private_data.s_decode_transform.v_transform_type; + v_tile_size_log2 = self->private_data.s_decode_transform.v_tile_size_log2; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_n_bits < 2u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (self->private_impl.f_n_bits >= 2u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_transform_type = (self->private_impl.f_bits & 3u); + self->private_impl.f_bits >>= 2u; + self->private_impl.f_n_bits -= 2u; + if (self->private_impl.f_seen_transform[v_transform_type] || (self->private_impl.f_n_transforms >= 4u)) { + status = wuffs_base__make_status(wuffs_webp__error__bad_transform); + goto exit; + } else if (self->private_impl.f_seen_transform[3u]) { + status = wuffs_base__make_status(wuffs_webp__error__unsupported_transform_after_color_indexing_transform); + goto exit; + } + self->private_impl.f_seen_transform[v_transform_type] = true; + self->private_impl.f_transform_type[self->private_impl.f_n_transforms] = ((uint8_t)(v_transform_type)); + self->private_impl.f_n_transforms += 1u; + if (v_transform_type < 2u) { + if (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 3u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_tile_size_log2 = ((self->private_impl.f_bits & 7u) + 2u); + self->private_impl.f_transform_tile_size_log2[v_transform_type] = ((uint8_t)(v_tile_size_log2)); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_webp__decoder__decode_color_cache_parameters(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_webp__decoder__decode_huffman_groups(self, a_src, 1u); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + while (true) { + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 1u)])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 2u)]))) || (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 2u)])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_webp__decoder__decode_pixels(self, + wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 1u)])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 2u)]))), + a_src, + ((self->private_impl.f_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2), + ((self->private_impl.f_height + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2), + wuffs_base__utility__empty_slice_u8(), + 0u); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + } else if (v_transform_type == 2u) { + } else { + if (self->private_impl.f_n_bits < 8u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if (self->private_impl.f_n_bits >= 8u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + self->private_impl.f_color_indexing_palette_size = ((self->private_impl.f_bits & 255u) + 1u); + self->private_impl.f_bits >>= 8u; + self->private_impl.f_n_bits -= 8u; + if (self->private_impl.f_color_indexing_palette_size <= 2u) { + self->private_impl.f_color_indexing_width = ((self->private_impl.f_width + 7u) / 8u); + self->private_impl.f_transform_tile_size_log2[3u] = 3u; + } else if (self->private_impl.f_color_indexing_palette_size <= 4u) { + self->private_impl.f_color_indexing_width = ((self->private_impl.f_width + 3u) / 4u); + self->private_impl.f_transform_tile_size_log2[3u] = 2u; + } else if (self->private_impl.f_color_indexing_palette_size <= 16u) { + self->private_impl.f_color_indexing_width = ((self->private_impl.f_width + 1u) / 2u); + self->private_impl.f_transform_tile_size_log2[3u] = 1u; + } else { + self->private_impl.f_color_indexing_width = self->private_impl.f_width; + self->private_impl.f_transform_tile_size_log2[3u] = 0u; + } + if (self->private_impl.f_width >= self->private_impl.f_color_indexing_width) { + self->private_impl.f_workbuf_offset_for_color_indexing = (4u * (self->private_impl.f_width - self->private_impl.f_color_indexing_width) * self->private_impl.f_height); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + status = wuffs_webp__decoder__decode_color_cache_parameters(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_webp__decoder__decode_huffman_groups(self, a_src, 1u); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_webp__decoder__decode_pixels(self, + wuffs_base__make_slice_u8(self->private_data.f_palette, (4u * self->private_impl.f_color_indexing_palette_size)), + a_src, + self->private_impl.f_color_indexing_palette_size, + 1u, + wuffs_base__utility__empty_slice_u8(), + 0u); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + wuffs_private_impl__bulk_memset(&self->private_data.f_palette[(4u * self->private_impl.f_color_indexing_palette_size)], (1024u - (4u * self->private_impl.f_color_indexing_palette_size)), 0u); + v_p = wuffs_base__make_slice_u8(self->private_data.f_palette, (4u * self->private_impl.f_color_indexing_palette_size)); + while (((uint64_t)(v_p.len)) >= 8u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_p.ptr[4u] += v_p.ptr[0u]; + v_p.ptr[5u] += v_p.ptr[1u]; + v_p.ptr[6u] += v_p.ptr[2u]; + v_p.ptr[7u] += v_p.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_p = wuffs_base__slice_u8__subslice_i(v_p, 4u); + } + } + + ok: + self->private_impl.p_decode_transform = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_transform = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_transform.v_transform_type = v_transform_type; + self->private_data.s_decode_transform.v_tile_size_log2 = v_tile_size_log2; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func webp.decoder.decode_color_cache_parameters + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_color_cache_parameters( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_use_color_cache = 0; + uint32_t v_color_cache_bits = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_color_cache_parameters; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_use_color_cache = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + self->private_impl.f_color_cache_bits = 0u; + if (v_use_color_cache != 0u) { + if (self->private_impl.f_n_bits < 4u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 4u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_color_cache_bits = (self->private_impl.f_bits & 15u); + self->private_impl.f_bits >>= 4u; + self->private_impl.f_n_bits -= 4u; + if ((v_color_cache_bits < 1u) || (11u < v_color_cache_bits)) { + status = wuffs_base__make_status(wuffs_webp__error__bad_color_cache); goto exit; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + self->private_impl.f_color_cache_bits = v_color_cache_bits; } + goto ok; ok: - self->private_impl.p_decode_frame[0] = 0; + self->private_impl.p_decode_color_cache_parameters = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + self->private_impl.p_decode_color_cache_parameters = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func tga.decoder.do_decode_frame +// -------- func webp.decoder.decode_hg_table WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_tga__decoder__do_decode_frame( - wuffs_tga__decoder* self, - wuffs_base__pixel_buffer* a_dst, +wuffs_webp__decoder__decode_hg_table( + wuffs_webp__decoder* self, wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { + uint32_t a_width, + wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); wuffs_base__status v_status = wuffs_base__make_status(NULL); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint64_t v_dst_bytes_per_pixel = 0; - uint32_t v_dst_x = 0; - uint32_t v_dst_y = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_dst_start = 0; - wuffs_base__slice_u8 v_src_palette = {0}; - uint64_t v_mark = 0; - uint64_t v_num_pixels64 = 0; - uint32_t v_num_pixels32 = 0; - uint32_t v_lit_length = 0; - uint32_t v_run_length = 0; - uint64_t v_num_dst_bytes = 0; - uint32_t v_num_src_bytes = 0; - uint32_t v_c = 0; - uint32_t v_c5 = 0; + uint8_t v_c8 = 0; + uint32_t v_use_hg_table = 0; + uint32_t v_tile_size_log2 = 0; + wuffs_base__slice_u8 v_hg_pixels = {0}; + uint64_t v_n = 0; + wuffs_base__slice_u8 v_p = {0}; + uint32_t v_hg_plus_1 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -59974,276 +75034,155 @@ wuffs_tga__decoder__do_decode_frame( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame[0]; + uint32_t coro_susp_point = self->private_impl.p_decode_hg_table; if (coro_susp_point) { - v_dst_bytes_per_pixel = self->private_data.s_do_decode_frame[0].v_dst_bytes_per_pixel; - v_dst_x = self->private_data.s_do_decode_frame[0].v_dst_x; - v_dst_y = self->private_data.s_do_decode_frame[0].v_dst_y; - v_mark = self->private_data.s_do_decode_frame[0].v_mark; - v_num_pixels32 = self->private_data.s_do_decode_frame[0].v_num_pixels32; - v_lit_length = self->private_data.s_do_decode_frame[0].v_lit_length; - v_run_length = self->private_data.s_do_decode_frame[0].v_run_length; - v_num_dst_bytes = self->private_data.s_do_decode_frame[0].v_num_dst_bytes; + v_tile_size_log2 = self->private_data.s_decode_hg_table.v_tile_size_log2; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_tga__decoder__do_decode_frame_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_use_hg_table = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + if (v_use_hg_table == 0u) { + self->private_impl.f_overall_n_huffman_groups = 1u; + self->private_impl.f_overall_tile_size_log2 = 0u; + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))) || (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; } - if (status.repr) { - goto suspend; + v_hg_pixels = wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))); + if (((uint64_t)(v_hg_pixels.len)) >= 4u) { + v_hg_pixels.ptr[0u] = 0u; + v_hg_pixels.ptr[1u] = 0u; + v_hg_pixels.ptr[2u] = 0u; + v_hg_pixels.ptr[3u] = 0u; } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); + status = wuffs_base__make_status(NULL); goto ok; } - if (self->private_impl.f_header_color_map_type != 0u) { - v_src_palette = wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024); - } - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), - wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), - v_src_palette, - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + if (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 3u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); goto exit; } - goto ok; + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; + v_tile_size_log2 = ((self->private_impl.f_bits & 7u) + 2u); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + self->private_impl.f_overall_tile_size_log2 = v_tile_size_log2; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); - if ((self->private_impl.f_header_image_descriptor & 32u) == 0u) { - v_dst_y = ((uint32_t)(self->private_impl.f_height - 1u)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_webp__decoder__decode_color_cache_parameters(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - if ((self->private_impl.f_header_image_type & 8u) == 0u) { - v_lit_length = self->private_impl.f_width; + if (status.repr) { + goto suspend; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_webp__decoder__decode_huffman_groups(self, a_src, 1u); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; } - label__resume__continue:; while (true) { - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); - while (v_dst_y < self->private_impl.f_height) { - v_dst = wuffs_base__table_u8__row_u32(v_tab, v_dst_y); - v_dst_start = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); - if (v_dst_start <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_start); - } else { - v_dst = wuffs_base__utility__empty_slice_u8(); - } - while (v_dst_x < self->private_impl.f_width) { - if (self->private_impl.f_src_bytes_per_pixel > 0u) { - if (v_lit_length > 0u) { - v_mark = ((uint64_t)(iop_a_src - io0_a_src)); - v_num_pixels64 = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(self->private_impl.f_src_bytes_per_pixel))); - v_num_pixels32 = ((uint32_t)(wuffs_base__u64__min(v_num_pixels64, ((uint64_t)(v_lit_length))))); - v_num_dst_bytes = (((uint64_t)(v_num_pixels32)) * v_dst_bytes_per_pixel); - v_num_src_bytes = (v_num_pixels32 * self->private_impl.f_src_bytes_per_pixel); - self->private_data.s_do_decode_frame[0].scratch = v_num_src_bytes; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (self->private_data.s_do_decode_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame[0].scratch; - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); - if (v_num_dst_bytes <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_num_dst_bytes); - } else { - v_dst = wuffs_base__utility__empty_slice_u8(); - } - v_dst_x += v_num_pixels32; - v_lit_length = (((uint32_t)(v_lit_length - v_num_pixels32)) & 65535u); - if (v_lit_length > 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - goto label__resume__continue; - } - } else if (v_run_length > 0u) { - v_run_length -= 1u; - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_scratch_bytes_per_pixel)); - if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); - } - v_dst_x += 1u; - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - goto label__resume__continue; - } - if (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) < 128u) { - v_lit_length = (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) + 1u); - iop_a_src += 1u; - if ((v_lit_length + v_dst_x) > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); - goto exit; - } - } else { - if (self->private_impl.f_src_bytes_per_pixel == 1u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - goto label__resume__continue; - } - v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); - iop_a_src += 1u; - self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - } else if (self->private_impl.f_src_bytes_per_pixel == 3u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - goto label__resume__continue; - } - v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); - iop_a_src += 1u; - self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[1u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[2u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) < 5u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); - goto label__resume__continue; - } - v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); - iop_a_src += 1u; - self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[1u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[2u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[3u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - } - if ((v_run_length + v_dst_x) > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); - goto exit; - } - } - } - } else { - if (v_lit_length > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - goto label__resume__continue; - } - v_c = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2u; - v_c5 = (31u & (v_c >> 0u)); - self->private_data.f_scratch[0u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 5u)); - self->private_data.f_scratch[1u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 10u)); - self->private_data.f_scratch[2u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - self->private_data.f_scratch[3u] = 255u; - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, 4)); - if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); - } - v_dst_x += 1u; - v_lit_length -= 1u; - } else if (v_run_length > 0u) { - v_run_length -= 1u; - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_scratch_bytes_per_pixel)); - if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); - } - v_dst_x += 1u; - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - goto label__resume__continue; - } - if (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) < 128u) { - v_lit_length = (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) + 1u); - iop_a_src += 1u; - if ((v_lit_length + v_dst_x) > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); - goto exit; - } - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); - goto label__resume__continue; - } - v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); - iop_a_src += 1u; - v_c = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2u; - v_c5 = (31u & (v_c >> 0u)); - self->private_data.f_scratch[0u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 5u)); - self->private_data.f_scratch[1u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 10u)); - self->private_data.f_scratch[2u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - self->private_data.f_scratch[3u] = 255u; - if ((v_run_length + v_dst_x) > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); - goto exit; - } - } - } - } - } - v_dst_x = 0u; - if ((self->private_impl.f_header_image_descriptor & 32u) == 0u) { - v_dst_y -= 1u; - } else { - v_dst_y += 1u; + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))) || (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if ((self->private_impl.f_header_image_type & 8u) == 0u) { - v_lit_length = self->private_impl.f_width; + wuffs_base__status t_2 = wuffs_webp__decoder__decode_pixels(self, + wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))), + a_src, + ((a_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2), + ((self->private_impl.f_height + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2), + wuffs_base__utility__empty_slice_u8(), + 0u); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } } - break; + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + self->private_impl.f_overall_n_huffman_groups = 1u; + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))) || (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + v_hg_pixels = wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))); + v_n = ((uint64_t)((((a_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2) * ((self->private_impl.f_height + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2) * 4u))); + if (v_n > ((uint64_t)(v_hg_pixels.len))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + v_p = wuffs_base__slice_u8__subslice_j(v_hg_pixels, v_n); + while (((uint64_t)(v_p.len)) >= 4u) { + if (v_p.ptr[2u] != 0u) { + status = wuffs_base__make_status(wuffs_webp__error__unsupported_number_of_huffman_groups); + goto exit; + } + v_hg_plus_1 = (((uint32_t)(v_p.ptr[1u])) + 1u); + if (self->private_impl.f_overall_n_huffman_groups < v_hg_plus_1) { + self->private_impl.f_overall_n_huffman_groups = v_hg_plus_1; + } + v_p = wuffs_base__slice_u8__subslice_i(v_p, 4u); } - self->private_impl.f_call_sequence = 96u; ok: - self->private_impl.p_do_decode_frame[0] = 0; + self->private_impl.p_decode_hg_table = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_frame[0].v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; - self->private_data.s_do_decode_frame[0].v_dst_x = v_dst_x; - self->private_data.s_do_decode_frame[0].v_dst_y = v_dst_y; - self->private_data.s_do_decode_frame[0].v_mark = v_mark; - self->private_data.s_do_decode_frame[0].v_num_pixels32 = v_num_pixels32; - self->private_data.s_do_decode_frame[0].v_lit_length = v_lit_length; - self->private_data.s_do_decode_frame[0].v_run_length = v_run_length; - self->private_data.s_do_decode_frame[0].v_num_dst_bytes = v_num_dst_bytes; + self->private_impl.p_decode_hg_table = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_hg_table.v_tile_size_log2 = v_tile_size_log2; goto exit; exit: @@ -60254,12 +75193,117 @@ wuffs_tga__decoder__do_decode_frame( return status; } -// -------- func tga.decoder.frame_dirty_rect +// -------- func webp.decoder.decode_pixels + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_pixels( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_dst, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + uint32_t a_height, + wuffs_base__slice_u8 a_tile_data, + uint32_t a_tile_size_log2) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_i = 0; + uint32_t v_n = 0; + + uint32_t coro_susp_point = self->private_impl.p_decode_pixels; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + v_i = 0u; + v_n = (((uint32_t)(1u)) << self->private_impl.f_color_cache_bits); + while (v_i < v_n) { + self->private_data.f_color_cache[v_i] = 0u; + v_i += 1u; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_webp__decoder__decode_pixels_slow(self, + a_dst, + a_src, + a_width, + a_height, + a_tile_data, + a_tile_size_log2); + if (status.repr) { + goto suspend; + } + + goto ok; + ok: + self->private_impl.p_decode_pixels = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_pixels = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func webp.decoder.swizzle + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__swizzle( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_src, + wuffs_base__pixel_blend a_blend) { + wuffs_base__status v_status = wuffs_base__make_status(NULL); + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + uint64_t v_src_bytes_per_row = 0; + wuffs_base__slice_u8 v_dst = {0}; + uint32_t v_y = 0; + + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_palette, 1024)), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + return wuffs_private_impl__status__ensure_not_a_suspension(v_status); + } + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_palette, 1024)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_src_bytes_per_row = ((uint64_t)((self->private_impl.f_width * 4u))); + while (v_src_bytes_per_row <= ((uint64_t)(a_src.len))) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__slice_u8__subslice_j(a_src, v_src_bytes_per_row)); + a_src = wuffs_base__slice_u8__subslice_i(a_src, v_src_bytes_per_row); + v_y += 1u; + } + return wuffs_base__make_status(NULL); +} + +// -------- func webp.decoder.frame_dirty_rect WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_tga__decoder__frame_dirty_rect( - const wuffs_tga__decoder* self) { +wuffs_webp__decoder__frame_dirty_rect( + const wuffs_webp__decoder* self) { if (!self) { return wuffs_base__utility__empty_rect_ie_u32(); } @@ -60275,12 +75319,12 @@ wuffs_tga__decoder__frame_dirty_rect( self->private_impl.f_height); } -// -------- func tga.decoder.num_animation_loops +// -------- func webp.decoder.num_animation_loops WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_tga__decoder__num_animation_loops( - const wuffs_tga__decoder* self) { +wuffs_webp__decoder__num_animation_loops( + const wuffs_webp__decoder* self) { if (!self) { return 0; } @@ -60292,12 +75336,12 @@ wuffs_tga__decoder__num_animation_loops( return 0u; } -// -------- func tga.decoder.num_decoded_frame_configs +// -------- func webp.decoder.num_decoded_frame_configs WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__num_decoded_frame_configs( - const wuffs_tga__decoder* self) { +wuffs_webp__decoder__num_decoded_frame_configs( + const wuffs_webp__decoder* self) { if (!self) { return 0; } @@ -60312,12 +75356,12 @@ wuffs_tga__decoder__num_decoded_frame_configs( return 0u; } -// -------- func tga.decoder.num_decoded_frames +// -------- func webp.decoder.num_decoded_frames WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__num_decoded_frames( - const wuffs_tga__decoder* self) { +wuffs_webp__decoder__num_decoded_frames( + const wuffs_webp__decoder* self) { if (!self) { return 0; } @@ -60332,12 +75376,12 @@ wuffs_tga__decoder__num_decoded_frames( return 0u; } -// -------- func tga.decoder.restart_frame +// -------- func webp.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__restart_frame( - wuffs_tga__decoder* self, +wuffs_webp__decoder__restart_frame( + wuffs_webp__decoder* self, uint64_t a_index, uint64_t a_io_position) { if (!self) { @@ -60353,31 +75397,30 @@ wuffs_tga__decoder__restart_frame( if (self->private_impl.f_call_sequence < 32u) { return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); } - if (a_index != 0u) { + if ((a_index != 0u) || (a_io_position != self->private_impl.f_frame_config_io_position)) { return wuffs_base__make_status(wuffs_base__error__bad_argument); } self->private_impl.f_call_sequence = 40u; - self->private_impl.f_frame_config_io_position = a_io_position; return wuffs_base__make_status(NULL); } -// -------- func tga.decoder.set_report_metadata +// -------- func webp.decoder.set_report_metadata WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_tga__decoder__set_report_metadata( - wuffs_tga__decoder* self, +wuffs_webp__decoder__set_report_metadata( + wuffs_webp__decoder* self, uint32_t a_fourcc, bool a_report) { return wuffs_base__make_empty_struct(); } -// -------- func tga.decoder.tell_me_more +// -------- func webp.decoder.tell_me_more WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__tell_me_more( - wuffs_tga__decoder* self, +wuffs_webp__decoder__tell_me_more( + wuffs_webp__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src) { @@ -60415,29 +75458,12 @@ wuffs_tga__decoder__tell_me_more( return status; } -// -------- func tga.decoder.history_retain_length - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__history_retain_length( - const wuffs_tga__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func tga.decoder.workbuf_len +// -------- func webp.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_tga__decoder__workbuf_len( - const wuffs_tga__decoder* self) { +wuffs_webp__decoder__workbuf_len( + const wuffs_webp__decoder* self) { if (!self) { return wuffs_base__utility__empty_range_ii_u64(); } @@ -60446,92 +75472,66 @@ wuffs_tga__decoder__workbuf_len( return wuffs_base__utility__empty_range_ii_u64(); } - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + return wuffs_base__utility__make_range_ii_u64(((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[3u])), ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[3u]))); } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) // ---------------- Status Codes Implementations -const char wuffs_wbmp__error__bad_header[] = "#wbmp: bad header"; -const char wuffs_wbmp__error__truncated_input[] = "#wbmp: truncated input"; - // ---------------- Private Consts -// ---------------- Private Initializer Prototypes +#define WUFFS_XXHASH32__XXH_PRIME32_1 2654435761u -// ---------------- Private Function Prototypes +#define WUFFS_XXHASH32__XXH_PRIME32_2 2246822519u -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_image_config( - wuffs_wbmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); +#define WUFFS_XXHASH32__XXH_PRIME32_3 3266489917u -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_frame_config( - wuffs_wbmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); +#define WUFFS_XXHASH32__XXH_PRIME32_4 668265263u + +#define WUFFS_XXHASH32__XXH_PRIME32_5 374761393u + +#define WUFFS_XXHASH32__INITIAL_V0 606290984u + +#define WUFFS_XXHASH32__INITIAL_V1 2246822519u + +#define WUFFS_XXHASH32__INITIAL_V2 0u + +#define WUFFS_XXHASH32__INITIAL_V3 1640531535u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_frame( - wuffs_wbmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); +static wuffs_base__empty_struct +wuffs_xxhash32__hasher__up( + wuffs_xxhash32__hasher* self, + wuffs_base__slice_u8 a_x); // ---------------- VTables -const wuffs_base__image_decoder__func_ptrs -wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_wbmp__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_wbmp__decoder__frame_dirty_rect), +const wuffs_base__hasher_u32__func_ptrs +wuffs_xxhash32__hasher__func_ptrs_for__wuffs_base__hasher_u32 = { + (uint32_t(*)(const void*))(&wuffs_xxhash32__hasher__checksum_u32), (uint64_t(*)(const void*, - uint32_t))(&wuffs_wbmp__decoder__get_quirk), - (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__history_retain_length), - (uint32_t(*)(const void*))(&wuffs_wbmp__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_wbmp__decoder__restart_frame), + uint32_t))(&wuffs_xxhash32__hasher__get_quirk), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_wbmp__decoder__set_quirk), + uint64_t))(&wuffs_xxhash32__hasher__set_quirk), (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_wbmp__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_wbmp__decoder__workbuf_len), + wuffs_base__slice_u8))(&wuffs_xxhash32__hasher__update), + (uint32_t(*)(void*, + wuffs_base__slice_u8))(&wuffs_xxhash32__hasher__update_u32), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_wbmp__decoder__initialize( - wuffs_wbmp__decoder* self, +wuffs_xxhash32__hasher__initialize( + wuffs_xxhash32__hasher* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -60569,22 +75569,22 @@ wuffs_wbmp__decoder__initialize( } self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder); + self->private_impl.vtable_for__wuffs_base__hasher_u32.vtable_name = + wuffs_base__hasher_u32__vtable_name; + self->private_impl.vtable_for__wuffs_base__hasher_u32.function_pointers = + (const void*)(&wuffs_xxhash32__hasher__func_ptrs_for__wuffs_base__hasher_u32); return wuffs_base__make_status(NULL); } -wuffs_wbmp__decoder* -wuffs_wbmp__decoder__alloc(void) { - wuffs_wbmp__decoder* x = - (wuffs_wbmp__decoder*)(calloc(sizeof(wuffs_wbmp__decoder), 1)); +wuffs_xxhash32__hasher* +wuffs_xxhash32__hasher__alloc(void) { + wuffs_xxhash32__hasher* x = + (wuffs_xxhash32__hasher*)(calloc(1, sizeof(wuffs_xxhash32__hasher))); if (!x) { return NULL; } - if (wuffs_wbmp__decoder__initialize( - x, sizeof(wuffs_wbmp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + if (wuffs_xxhash32__hasher__initialize( + x, sizeof(wuffs_xxhash32__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { free(x); return NULL; } @@ -60592,18 +75592,18 @@ wuffs_wbmp__decoder__alloc(void) { } size_t -sizeof__wuffs_wbmp__decoder(void) { - return sizeof(wuffs_wbmp__decoder); +sizeof__wuffs_xxhash32__hasher(void) { + return sizeof(wuffs_xxhash32__hasher); } // ---------------- Function Implementations -// -------- func wbmp.decoder.get_quirk +// -------- func xxhash32.hasher.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__get_quirk( - const wuffs_wbmp__decoder* self, +wuffs_xxhash32__hasher__get_quirk( + const wuffs_xxhash32__hasher* self, uint32_t a_key) { if (!self) { return 0; @@ -60616,12 +75616,12 @@ wuffs_wbmp__decoder__get_quirk( return 0u; } -// -------- func wbmp.decoder.set_quirk +// -------- func xxhash32.hasher.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__set_quirk( - wuffs_wbmp__decoder* self, +wuffs_xxhash32__hasher__set_quirk( + wuffs_xxhash32__hasher* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -60637,627 +75637,387 @@ wuffs_wbmp__decoder__set_quirk( return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func wbmp.decoder.decode_image_config +// -------- func xxhash32.hasher.update WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_image_config( - wuffs_wbmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_xxhash32__hasher__update( + wuffs_xxhash32__hasher* self, + wuffs_base__slice_u8 a_x) { if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); + return wuffs_base__make_empty_struct(); } if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_image_config[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_empty_struct(); } - return status; -} - -// -------- func wbmp.decoder.do_decode_image_config - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_image_config( - wuffs_wbmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint32_t v_i = 0; - uint32_t v_p = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + wuffs_base__slice_u8 v_remaining = {0}; - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config[0]; - if (coro_susp_point) { - v_i = self->private_data.s_do_decode_image_config[0].v_i; - v_p = self->private_data.s_do_decode_image_config[0].v_p; + if ((self->private_impl.f_length_modulo_u32 == 0u) && ! self->private_impl.f_length_overflows_u32) { + self->private_impl.f_v0 = 606290984u; + self->private_impl.f_v1 = 2246822519u; + self->private_impl.f_v2 = 0u; + self->private_impl.f_v3 = 1640531535u; } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } - v_i = 0u; - while (v_i < 2u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c != 0u) { - status = wuffs_base__make_status(wuffs_wbmp__error__bad_header); - goto exit; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 2u) { - v_p = 0u; - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - v_p |= ((uint32_t)((v_c & 127u))); - if ((v_c >> 7u) == 0u) { - break; - } else if (v_p > 131071u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - v_p <<= 7u; - } - if (v_i == 0u) { - self->private_impl.f_width = v_p; - } else { - self->private_impl.f_height = v_p; - } - v_i += 1u; - } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - 2198077448u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - true); + while (((uint64_t)(a_x.len)) > 0u) { + v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0u); + if (((uint64_t)(a_x.len)) > 16777216u) { + v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 16777216u); + a_x = wuffs_base__slice_u8__subslice_j(a_x, 16777216u); } - self->private_impl.f_call_sequence = 32u; - - goto ok; - ok: - self->private_impl.p_do_decode_image_config[0] = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_do_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_image_config[0].v_i = v_i; - self->private_data.s_do_decode_image_config[0].v_p = v_p; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + wuffs_xxhash32__hasher__up(self, a_x); + a_x = v_remaining; } - - return status; + return wuffs_base__make_empty_struct(); } -// -------- func wbmp.decoder.decode_frame_config +// -------- func xxhash32.hasher.update_u32 WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_frame_config( - wuffs_wbmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_xxhash32__hasher__update_u32( + wuffs_xxhash32__hasher* self, + wuffs_base__slice_u8 a_x) { if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); + return 0; } if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_frame_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_frame_config[0] = 0; - goto exit; + return 0; } - goto suspend; - suspend: - self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; + wuffs_xxhash32__hasher__update(self, a_x); + return wuffs_xxhash32__hasher__checksum_u32(self); } -// -------- func wbmp.decoder.do_decode_frame_config +// -------- func xxhash32.hasher.up WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_frame_config( - wuffs_wbmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +static wuffs_base__empty_struct +wuffs_xxhash32__hasher__up( + wuffs_xxhash32__hasher* self, + wuffs_base__slice_u8 a_x) { + uint32_t v_new_lmu = 0; + uint32_t v_buf_u32 = 0; + uint32_t v_buf_len = 0; + uint32_t v_v0 = 0; + uint32_t v_v1 = 0; + uint32_t v_v2 = 0; + uint32_t v_v3 = 0; + wuffs_base__slice_u8 v_p = {0}; - if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_wbmp__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; - } - } else if (self->private_impl.f_call_sequence == 64u) { - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; + v_new_lmu = ((uint32_t)(self->private_impl.f_length_modulo_u32 + ((uint32_t)(((uint64_t)(a_x.len)))))); + self->private_impl.f_length_overflows_u32 = ((v_new_lmu < self->private_impl.f_length_modulo_u32) || self->private_impl.f_length_overflows_u32); + self->private_impl.f_length_modulo_u32 = v_new_lmu; + while (true) { + if (self->private_impl.f_buf_len >= 16u) { + v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[0u])) | + (((uint32_t)(self->private_impl.f_buf_data[1u])) << 8u) | + (((uint32_t)(self->private_impl.f_buf_data[2u])) << 16u) | + (((uint32_t)(self->private_impl.f_buf_data[3u])) << 24u)); + v_v0 = ((uint32_t)(self->private_impl.f_v0 + ((uint32_t)(v_buf_u32 * 2246822519u)))); + v_v0 = (((uint32_t)(v_v0 << 13u)) | (v_v0 >> 19u)); + self->private_impl.f_v0 = ((uint32_t)(v_v0 * 2654435761u)); + v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[4u])) | + (((uint32_t)(self->private_impl.f_buf_data[5u])) << 8u) | + (((uint32_t)(self->private_impl.f_buf_data[6u])) << 16u) | + (((uint32_t)(self->private_impl.f_buf_data[7u])) << 24u)); + v_v1 = ((uint32_t)(self->private_impl.f_v1 + ((uint32_t)(v_buf_u32 * 2246822519u)))); + v_v1 = (((uint32_t)(v_v1 << 13u)) | (v_v1 >> 19u)); + self->private_impl.f_v1 = ((uint32_t)(v_v1 * 2654435761u)); + v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[8u])) | + (((uint32_t)(self->private_impl.f_buf_data[9u])) << 8u) | + (((uint32_t)(self->private_impl.f_buf_data[10u])) << 16u) | + (((uint32_t)(self->private_impl.f_buf_data[11u])) << 24u)); + v_v2 = ((uint32_t)(self->private_impl.f_v2 + ((uint32_t)(v_buf_u32 * 2246822519u)))); + v_v2 = (((uint32_t)(v_v2 << 13u)) | (v_v2 >> 19u)); + self->private_impl.f_v2 = ((uint32_t)(v_v2 * 2654435761u)); + v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[12u])) | + (((uint32_t)(self->private_impl.f_buf_data[13u])) << 8u) | + (((uint32_t)(self->private_impl.f_buf_data[14u])) << 16u) | + (((uint32_t)(self->private_impl.f_buf_data[15u])) << 24u)); + v_v3 = ((uint32_t)(self->private_impl.f_v3 + ((uint32_t)(v_buf_u32 * 2246822519u)))); + v_v3 = (((uint32_t)(v_v3 << 13u)) | (v_v3 >> 19u)); + self->private_impl.f_v3 = ((uint32_t)(v_v3 * 2654435761u)); + self->private_impl.f_buf_len = 0u; + break; } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height), - ((wuffs_base__flicks)(0u)), - 0u, - self->private_impl.f_frame_config_io_position, - 0u, - true, - false, - 4278190080u); + if (((uint64_t)(a_x.len)) <= 0u) { + return wuffs_base__make_empty_struct(); } - self->private_impl.f_call_sequence = 64u; - - ok: - self->private_impl.p_do_decode_frame_config[0] = 0; - goto exit; + self->private_impl.f_buf_data[self->private_impl.f_buf_len] = a_x.ptr[0u]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_buf_len += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } - - goto suspend; - suspend: - self->private_impl.p_do_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + v_buf_len = ((uint32_t)(((uint8_t)(self->private_impl.f_buf_len & 15u)))); + v_v0 = self->private_impl.f_v0; + v_v1 = self->private_impl.f_v1; + v_v2 = self->private_impl.f_v2; + v_v3 = self->private_impl.f_v3; + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 16; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 16) * 16)); + while (v_p.ptr < i_end0_p) { + v_buf_u32 = (((uint32_t)(v_p.ptr[0u])) | + (((uint32_t)(v_p.ptr[1u])) << 8u) | + (((uint32_t)(v_p.ptr[2u])) << 16u) | + (((uint32_t)(v_p.ptr[3u])) << 24u)); + v_v0 = ((uint32_t)(v_v0 + ((uint32_t)(v_buf_u32 * 2246822519u)))); + v_v0 = (((uint32_t)(v_v0 << 13u)) | (v_v0 >> 19u)); + v_v0 = ((uint32_t)(v_v0 * 2654435761u)); + v_buf_u32 = (((uint32_t)(v_p.ptr[4u])) | + (((uint32_t)(v_p.ptr[5u])) << 8u) | + (((uint32_t)(v_p.ptr[6u])) << 16u) | + (((uint32_t)(v_p.ptr[7u])) << 24u)); + v_v1 = ((uint32_t)(v_v1 + ((uint32_t)(v_buf_u32 * 2246822519u)))); + v_v1 = (((uint32_t)(v_v1 << 13u)) | (v_v1 >> 19u)); + v_v1 = ((uint32_t)(v_v1 * 2654435761u)); + v_buf_u32 = (((uint32_t)(v_p.ptr[8u])) | + (((uint32_t)(v_p.ptr[9u])) << 8u) | + (((uint32_t)(v_p.ptr[10u])) << 16u) | + (((uint32_t)(v_p.ptr[11u])) << 24u)); + v_v2 = ((uint32_t)(v_v2 + ((uint32_t)(v_buf_u32 * 2246822519u)))); + v_v2 = (((uint32_t)(v_v2 << 13u)) | (v_v2 >> 19u)); + v_v2 = ((uint32_t)(v_v2 * 2654435761u)); + v_buf_u32 = (((uint32_t)(v_p.ptr[12u])) | + (((uint32_t)(v_p.ptr[13u])) << 8u) | + (((uint32_t)(v_p.ptr[14u])) << 16u) | + (((uint32_t)(v_p.ptr[15u])) << 24u)); + v_v3 = ((uint32_t)(v_v3 + ((uint32_t)(v_buf_u32 * 2246822519u)))); + v_v3 = (((uint32_t)(v_v3 << 13u)) | (v_v3 >> 19u)); + v_v3 = ((uint32_t)(v_v3 * 2654435761u)); + v_p.ptr += 16; + } + v_p.len = 1; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end1_p) { + self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; + v_buf_len = ((v_buf_len + 1u) & 15u); + v_p.ptr += 1; + } + v_p.len = 0; } - - return status; + self->private_impl.f_buf_len = ((uint8_t)(v_buf_len)); + self->private_impl.f_v0 = v_v0; + self->private_impl.f_v1 = v_v1; + self->private_impl.f_v2 = v_v2; + self->private_impl.f_v3 = v_v3; + return wuffs_base__make_empty_struct(); } -// -------- func wbmp.decoder.decode_frame +// -------- func xxhash32.hasher.checksum_u32 WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_frame( - wuffs_wbmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_xxhash32__hasher__checksum_u32( + const wuffs_xxhash32__hasher* self) { if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); + return 0; } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + uint32_t v_ret = 0; + uint32_t v_i = 0; + uint32_t v_n = 0; + uint32_t v_buf_u32 = 0; + + if ((self->private_impl.f_length_modulo_u32 >= 16u) || self->private_impl.f_length_overflows_u32) { + v_ret += (((uint32_t)(self->private_impl.f_v0 << 1u)) | (self->private_impl.f_v0 >> 31u)); + v_ret += (((uint32_t)(self->private_impl.f_v1 << 7u)) | (self->private_impl.f_v1 >> 25u)); + v_ret += (((uint32_t)(self->private_impl.f_v2 << 12u)) | (self->private_impl.f_v2 >> 20u)); + v_ret += (((uint32_t)(self->private_impl.f_v3 << 18u)) | (self->private_impl.f_v3 >> 14u)); + v_ret += self->private_impl.f_length_modulo_u32; + } else { + v_ret += 374761393u; + v_ret += self->private_impl.f_length_modulo_u32; + } + v_n = 16u; + v_n = wuffs_base__u32__min(v_n, ((uint32_t)(self->private_impl.f_buf_len))); + if (4u <= v_n) { + v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[0u])) | + (((uint32_t)(self->private_impl.f_buf_data[1u])) << 8u) | + (((uint32_t)(self->private_impl.f_buf_data[2u])) << 16u) | + (((uint32_t)(self->private_impl.f_buf_data[3u])) << 24u)); + v_ret += ((uint32_t)(v_buf_u32 * 3266489917u)); + v_ret = (((uint32_t)(v_ret << 17u)) | (v_ret >> 15u)); + v_ret *= 668265263u; + v_i = 4u; + } + if (8u <= v_n) { + v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[4u])) | + (((uint32_t)(self->private_impl.f_buf_data[5u])) << 8u) | + (((uint32_t)(self->private_impl.f_buf_data[6u])) << 16u) | + (((uint32_t)(self->private_impl.f_buf_data[7u])) << 24u)); + v_ret += ((uint32_t)(v_buf_u32 * 3266489917u)); + v_ret = (((uint32_t)(v_ret << 17u)) | (v_ret >> 15u)); + v_ret *= 668265263u; + v_i = 8u; } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); + if (12u <= v_n) { + v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[8u])) | + (((uint32_t)(self->private_impl.f_buf_data[9u])) << 8u) | + (((uint32_t)(self->private_impl.f_buf_data[10u])) << 16u) | + (((uint32_t)(self->private_impl.f_buf_data[11u])) << 24u)); + v_ret += ((uint32_t)(v_buf_u32 * 3266489917u)); + v_ret = (((uint32_t)(v_ret << 17u)) | (v_ret >> 15u)); + v_ret *= 668265263u; + v_i = 12u; } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + while (v_i < v_n) { + v_ret += ((uint32_t)(((uint32_t)(self->private_impl.f_buf_data[v_i])) * 374761393u)); + v_ret = (((uint32_t)(v_ret << 11u)) | (v_ret >> 21u)); + v_ret *= 2654435761u; + v_i += 1u; } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + v_ret ^= (v_ret >> 15u); + v_ret *= 2246822519u; + v_ret ^= (v_ret >> 13u); + v_ret *= 3266489917u; + v_ret ^= (v_ret >> 16u); + return v_ret; +} - while (true) { - { - wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) - ok: - self->private_impl.p_decode_frame[0] = 0; - goto exit; - } +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) - goto suspend; - suspend: - self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; +// ---------------- Status Codes Implementations - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} +// ---------------- Private Consts -// -------- func wbmp.decoder.do_decode_frame +#define WUFFS_XXHASH64__XXH_PRIME64_1 11400714785074694791u -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_frame( - wuffs_wbmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - wuffs_base__status status = wuffs_base__make_status(NULL); +#define WUFFS_XXHASH64__XXH_PRIME64_2 14029467366897019727u - wuffs_base__status v_status = wuffs_base__make_status(NULL); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint64_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_x_in_bytes = 0; - uint32_t v_dst_x = 0; - uint32_t v_dst_y = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint8_t v_src[1] = {0}; - uint8_t v_c = 0; +#define WUFFS_XXHASH64__XXH_PRIME64_3 1609587929392839161u - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +#define WUFFS_XXHASH64__XXH_PRIME64_4 9650029242287828579u - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame[0]; - if (coro_susp_point) { - v_dst_bytes_per_pixel = self->private_data.s_do_decode_frame[0].v_dst_bytes_per_pixel; - v_dst_x = self->private_data.s_do_decode_frame[0].v_dst_x; - v_dst_y = self->private_data.s_do_decode_frame[0].v_dst_y; - memcpy(v_src, self->private_data.s_do_decode_frame[0].v_src, sizeof(v_src)); - v_c = self->private_data.s_do_decode_frame[0].v_c; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +#define WUFFS_XXHASH64__XXH_PRIME64_5 2870177450012600261u - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_wbmp__decoder__do_decode_frame_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette(a_dst), - wuffs_base__utility__make_pixel_format(536870920u), - wuffs_base__utility__empty_slice_u8(), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); - if (self->private_impl.f_width > 0u) { - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - while (v_dst_y < self->private_impl.f_height) { - v_dst = wuffs_base__table_u8__row_u32(v_tab, v_dst_y); - v_dst_x = 0u; - while (v_dst_x < self->private_impl.f_width) { - if ((v_dst_x & 7u) == 0u) { - while (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_dst = wuffs_base__table_u8__row_u32(v_tab, v_dst_y); - v_dst_x_in_bytes = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); - if (v_dst_x_in_bytes <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_x_in_bytes); - } - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - } - if ((v_c & 128u) == 0u) { - v_src[0u] = 0u; - } else { - v_src[0u] = 255u; - } - v_c = ((uint8_t)((((uint32_t)(v_c)) << 1u))); - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__utility__empty_slice_u8(), wuffs_base__make_slice_u8(v_src, 1)); - if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); - } - v_dst_x += 1u; - } - v_dst_y += 1u; - } - } - self->private_impl.f_call_sequence = 96u; +#define WUFFS_XXHASH64__INITIAL_V0 6983438078262162902u - ok: - self->private_impl.p_do_decode_frame[0] = 0; - goto exit; - } +#define WUFFS_XXHASH64__INITIAL_V1 14029467366897019727u - goto suspend; - suspend: - self->private_impl.p_do_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_frame[0].v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; - self->private_data.s_do_decode_frame[0].v_dst_x = v_dst_x; - self->private_data.s_do_decode_frame[0].v_dst_y = v_dst_y; - memcpy(self->private_data.s_do_decode_frame[0].v_src, v_src, sizeof(v_src)); - self->private_data.s_do_decode_frame[0].v_c = v_c; +#define WUFFS_XXHASH64__INITIAL_V2 0u - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +#define WUFFS_XXHASH64__INITIAL_V3 7046029288634856825u - return status; -} +// ---------------- Private Initializer Prototypes -// -------- func wbmp.decoder.frame_dirty_rect +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_wbmp__decoder__frame_dirty_rect( - const wuffs_wbmp__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } +static wuffs_base__empty_struct +wuffs_xxhash64__hasher__up( + wuffs_xxhash64__hasher* self, + wuffs_base__slice_u8 a_x); - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} +// ---------------- VTables -// -------- func wbmp.decoder.num_animation_loops +const wuffs_base__hasher_u64__func_ptrs +wuffs_xxhash64__hasher__func_ptrs_for__wuffs_base__hasher_u64 = { + (uint64_t(*)(const void*))(&wuffs_xxhash64__hasher__checksum_u64), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_xxhash64__hasher__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_xxhash64__hasher__set_quirk), + (wuffs_base__empty_struct(*)(void*, + wuffs_base__slice_u8))(&wuffs_xxhash64__hasher__update), + (uint64_t(*)(void*, + wuffs_base__slice_u8))(&wuffs_xxhash64__hasher__update_u64), +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_wbmp__decoder__num_animation_loops( - const wuffs_wbmp__decoder* self) { +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_xxhash64__hasher__initialize( + wuffs_xxhash64__hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ if (!self) { - return 0; + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); } - return 0u; -} + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } -// -------- func wbmp.decoder.num_decoded_frame_configs + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__hasher_u64.vtable_name = + wuffs_base__hasher_u64__vtable_name; + self->private_impl.vtable_for__wuffs_base__hasher_u64.function_pointers = + (const void*)(&wuffs_xxhash64__hasher__func_ptrs_for__wuffs_base__hasher_u64); + return wuffs_base__make_status(NULL); +} -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__num_decoded_frame_configs( - const wuffs_wbmp__decoder* self) { - if (!self) { - return 0; +wuffs_xxhash64__hasher* +wuffs_xxhash64__hasher__alloc(void) { + wuffs_xxhash64__hasher* x = + (wuffs_xxhash64__hasher*)(calloc(1, sizeof(wuffs_xxhash64__hasher))); + if (!x) { + return NULL; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if (wuffs_xxhash64__hasher__initialize( + x, sizeof(wuffs_xxhash64__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; } + return x; +} - if (self->private_impl.f_call_sequence > 32u) { - return 1u; - } - return 0u; +size_t +sizeof__wuffs_xxhash64__hasher(void) { + return sizeof(wuffs_xxhash64__hasher); } -// -------- func wbmp.decoder.num_decoded_frames +// ---------------- Function Implementations + +// -------- func xxhash64.hasher.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__num_decoded_frames( - const wuffs_wbmp__decoder* self) { +wuffs_xxhash64__hasher__get_quirk( + const wuffs_xxhash64__hasher* self, + uint32_t a_key) { if (!self) { return 0; } @@ -61266,20 +76026,17 @@ wuffs_wbmp__decoder__num_decoded_frames( return 0; } - if (self->private_impl.f_call_sequence > 64u) { - return 1u; - } return 0u; } -// -------- func wbmp.decoder.restart_frame +// -------- func xxhash64.hasher.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__restart_frame( - wuffs_wbmp__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { +wuffs_xxhash64__hasher__set_quirk( + wuffs_xxhash64__hasher* self, + uint32_t a_key, + uint64_t a_value) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -61290,77 +76047,206 @@ wuffs_wbmp__decoder__restart_frame( : wuffs_base__error__initialize_not_called); } - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if (a_index != 0u) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - self->private_impl.f_call_sequence = 40u; - self->private_impl.f_frame_config_io_position = a_io_position; - return wuffs_base__make_status(NULL); + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func wbmp.decoder.set_report_metadata +// -------- func xxhash64.hasher.update WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_wbmp__decoder__set_report_metadata( - wuffs_wbmp__decoder* self, - uint32_t a_fourcc, - bool a_report) { +wuffs_xxhash64__hasher__update( + wuffs_xxhash64__hasher* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } + + if ((self->private_impl.f_length_modulo_u64 == 0u) && ! self->private_impl.f_length_overflows_u64) { + self->private_impl.f_v0 = 6983438078262162902u; + self->private_impl.f_v1 = 14029467366897019727u; + self->private_impl.f_v2 = 0u; + self->private_impl.f_v3 = 7046029288634856825u; + } + wuffs_xxhash64__hasher__up(self, a_x); return wuffs_base__make_empty_struct(); } -// -------- func wbmp.decoder.tell_me_more +// -------- func xxhash64.hasher.update_u64 WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__tell_me_more( - wuffs_wbmp__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash64__hasher__update_u64( + wuffs_xxhash64__hasher* self, + wuffs_base__slice_u8 a_x) { if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); + return 0; } if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + return 0; } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; + wuffs_xxhash64__hasher__update(self, a_x); + return wuffs_xxhash64__hasher__checksum_u64(self); +} - goto ok; - ok: - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; +// -------- func xxhash64.hasher.up + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_xxhash64__hasher__up( + wuffs_xxhash64__hasher* self, + wuffs_base__slice_u8 a_x) { + uint64_t v_new_lmu = 0; + uint64_t v_buf_u64 = 0; + uint32_t v_buf_len = 0; + uint64_t v_v0 = 0; + uint64_t v_v1 = 0; + uint64_t v_v2 = 0; + uint64_t v_v3 = 0; + wuffs_base__slice_u8 v_p = {0}; + + v_new_lmu = ((uint64_t)(self->private_impl.f_length_modulo_u64 + ((uint64_t)(a_x.len)))); + self->private_impl.f_length_overflows_u64 = ((v_new_lmu < self->private_impl.f_length_modulo_u64) || self->private_impl.f_length_overflows_u64); + self->private_impl.f_length_modulo_u64 = v_new_lmu; + while (true) { + if (self->private_impl.f_buf_len >= 32u) { + v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[0u])) | + (((uint64_t)(self->private_impl.f_buf_data[1u])) << 8u) | + (((uint64_t)(self->private_impl.f_buf_data[2u])) << 16u) | + (((uint64_t)(self->private_impl.f_buf_data[3u])) << 24u) | + (((uint64_t)(self->private_impl.f_buf_data[4u])) << 32u) | + (((uint64_t)(self->private_impl.f_buf_data[5u])) << 40u) | + (((uint64_t)(self->private_impl.f_buf_data[6u])) << 48u) | + (((uint64_t)(self->private_impl.f_buf_data[7u])) << 56u)); + v_v0 = ((uint64_t)(self->private_impl.f_v0 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); + v_v0 = (((uint64_t)(v_v0 << 31u)) | (v_v0 >> 33u)); + self->private_impl.f_v0 = ((uint64_t)(v_v0 * 11400714785074694791u)); + v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[8u])) | + (((uint64_t)(self->private_impl.f_buf_data[9u])) << 8u) | + (((uint64_t)(self->private_impl.f_buf_data[10u])) << 16u) | + (((uint64_t)(self->private_impl.f_buf_data[11u])) << 24u) | + (((uint64_t)(self->private_impl.f_buf_data[12u])) << 32u) | + (((uint64_t)(self->private_impl.f_buf_data[13u])) << 40u) | + (((uint64_t)(self->private_impl.f_buf_data[14u])) << 48u) | + (((uint64_t)(self->private_impl.f_buf_data[15u])) << 56u)); + v_v1 = ((uint64_t)(self->private_impl.f_v1 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); + v_v1 = (((uint64_t)(v_v1 << 31u)) | (v_v1 >> 33u)); + self->private_impl.f_v1 = ((uint64_t)(v_v1 * 11400714785074694791u)); + v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[16u])) | + (((uint64_t)(self->private_impl.f_buf_data[17u])) << 8u) | + (((uint64_t)(self->private_impl.f_buf_data[18u])) << 16u) | + (((uint64_t)(self->private_impl.f_buf_data[19u])) << 24u) | + (((uint64_t)(self->private_impl.f_buf_data[20u])) << 32u) | + (((uint64_t)(self->private_impl.f_buf_data[21u])) << 40u) | + (((uint64_t)(self->private_impl.f_buf_data[22u])) << 48u) | + (((uint64_t)(self->private_impl.f_buf_data[23u])) << 56u)); + v_v2 = ((uint64_t)(self->private_impl.f_v2 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); + v_v2 = (((uint64_t)(v_v2 << 31u)) | (v_v2 >> 33u)); + self->private_impl.f_v2 = ((uint64_t)(v_v2 * 11400714785074694791u)); + v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[24u])) | + (((uint64_t)(self->private_impl.f_buf_data[25u])) << 8u) | + (((uint64_t)(self->private_impl.f_buf_data[26u])) << 16u) | + (((uint64_t)(self->private_impl.f_buf_data[27u])) << 24u) | + (((uint64_t)(self->private_impl.f_buf_data[28u])) << 32u) | + (((uint64_t)(self->private_impl.f_buf_data[29u])) << 40u) | + (((uint64_t)(self->private_impl.f_buf_data[30u])) << 48u) | + (((uint64_t)(self->private_impl.f_buf_data[31u])) << 56u)); + v_v3 = ((uint64_t)(self->private_impl.f_v3 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); + v_v3 = (((uint64_t)(v_v3 << 31u)) | (v_v3 >> 33u)); + self->private_impl.f_v3 = ((uint64_t)(v_v3 * 11400714785074694791u)); + self->private_impl.f_buf_len = 0u; + break; + } + if (((uint64_t)(a_x.len)) <= 0u) { + return wuffs_base__make_empty_struct(); + } + self->private_impl.f_buf_data[self->private_impl.f_buf_len] = a_x.ptr[0u]; + self->private_impl.f_buf_len += 1u; + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); + } + v_buf_len = (self->private_impl.f_buf_len & 31u); + v_v0 = self->private_impl.f_v0; + v_v1 = self->private_impl.f_v1; + v_v2 = self->private_impl.f_v2; + v_v3 = self->private_impl.f_v3; + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 32; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32)); + while (v_p.ptr < i_end0_p) { + v_buf_u64 = (((uint64_t)(v_p.ptr[0u])) | + (((uint64_t)(v_p.ptr[1u])) << 8u) | + (((uint64_t)(v_p.ptr[2u])) << 16u) | + (((uint64_t)(v_p.ptr[3u])) << 24u) | + (((uint64_t)(v_p.ptr[4u])) << 32u) | + (((uint64_t)(v_p.ptr[5u])) << 40u) | + (((uint64_t)(v_p.ptr[6u])) << 48u) | + (((uint64_t)(v_p.ptr[7u])) << 56u)); + v_v0 = ((uint64_t)(v_v0 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); + v_v0 = (((uint64_t)(v_v0 << 31u)) | (v_v0 >> 33u)); + v_v0 = ((uint64_t)(v_v0 * 11400714785074694791u)); + v_buf_u64 = (((uint64_t)(v_p.ptr[8u])) | + (((uint64_t)(v_p.ptr[9u])) << 8u) | + (((uint64_t)(v_p.ptr[10u])) << 16u) | + (((uint64_t)(v_p.ptr[11u])) << 24u) | + (((uint64_t)(v_p.ptr[12u])) << 32u) | + (((uint64_t)(v_p.ptr[13u])) << 40u) | + (((uint64_t)(v_p.ptr[14u])) << 48u) | + (((uint64_t)(v_p.ptr[15u])) << 56u)); + v_v1 = ((uint64_t)(v_v1 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); + v_v1 = (((uint64_t)(v_v1 << 31u)) | (v_v1 >> 33u)); + v_v1 = ((uint64_t)(v_v1 * 11400714785074694791u)); + v_buf_u64 = (((uint64_t)(v_p.ptr[16u])) | + (((uint64_t)(v_p.ptr[17u])) << 8u) | + (((uint64_t)(v_p.ptr[18u])) << 16u) | + (((uint64_t)(v_p.ptr[19u])) << 24u) | + (((uint64_t)(v_p.ptr[20u])) << 32u) | + (((uint64_t)(v_p.ptr[21u])) << 40u) | + (((uint64_t)(v_p.ptr[22u])) << 48u) | + (((uint64_t)(v_p.ptr[23u])) << 56u)); + v_v2 = ((uint64_t)(v_v2 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); + v_v2 = (((uint64_t)(v_v2 << 31u)) | (v_v2 >> 33u)); + v_v2 = ((uint64_t)(v_v2 * 11400714785074694791u)); + v_buf_u64 = (((uint64_t)(v_p.ptr[24u])) | + (((uint64_t)(v_p.ptr[25u])) << 8u) | + (((uint64_t)(v_p.ptr[26u])) << 16u) | + (((uint64_t)(v_p.ptr[27u])) << 24u) | + (((uint64_t)(v_p.ptr[28u])) << 32u) | + (((uint64_t)(v_p.ptr[29u])) << 40u) | + (((uint64_t)(v_p.ptr[30u])) << 48u) | + (((uint64_t)(v_p.ptr[31u])) << 56u)); + v_v3 = ((uint64_t)(v_v3 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); + v_v3 = (((uint64_t)(v_v3 << 31u)) | (v_v3 >> 33u)); + v_v3 = ((uint64_t)(v_v3 * 11400714785074694791u)); + v_p.ptr += 32; + } + v_p.len = 1; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end1_p) { + self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; + v_buf_len = ((v_buf_len + 1u) & 31u); + v_p.ptr += 1; + } + v_p.len = 0; } - return status; + self->private_impl.f_buf_len = v_buf_len; + self->private_impl.f_v0 = v_v0; + self->private_impl.f_v1 = v_v1; + self->private_impl.f_v2 = v_v2; + self->private_impl.f_v3 = v_v3; + return wuffs_base__make_empty_struct(); } -// -------- func wbmp.decoder.history_retain_length +// -------- func xxhash64.hasher.checksum_u64 WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__history_retain_length( - const wuffs_wbmp__decoder* self) { +wuffs_xxhash64__hasher__checksum_u64( + const wuffs_xxhash64__hasher* self) { if (!self) { return 0; } @@ -61369,83 +76255,307 @@ wuffs_wbmp__decoder__history_retain_length( return 0; } - return 0u; -} - -// -------- func wbmp.decoder.workbuf_len + uint64_t v_ret = 0; + uint64_t v_v0 = 0; + uint64_t v_v1 = 0; + uint64_t v_v2 = 0; + uint64_t v_v3 = 0; + uint32_t v_i = 0; + uint32_t v_i8 = 0; + uint32_t v_n = 0; + uint32_t v_buf_u32 = 0; + uint64_t v_buf_u64 = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_wbmp__decoder__workbuf_len( - const wuffs_wbmp__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); + if ((self->private_impl.f_length_modulo_u64 >= 32u) || self->private_impl.f_length_overflows_u64) { + v_ret += (((uint64_t)(self->private_impl.f_v0 << 1u)) | (self->private_impl.f_v0 >> 63u)); + v_ret += (((uint64_t)(self->private_impl.f_v1 << 7u)) | (self->private_impl.f_v1 >> 57u)); + v_ret += (((uint64_t)(self->private_impl.f_v2 << 12u)) | (self->private_impl.f_v2 >> 52u)); + v_ret += (((uint64_t)(self->private_impl.f_v3 << 18u)) | (self->private_impl.f_v3 >> 46u)); + v_v0 = ((uint64_t)(self->private_impl.f_v0 * 14029467366897019727u)); + v_v0 = (((uint64_t)(v_v0 << 31u)) | (v_v0 >> 33u)); + v_v0 *= 11400714785074694791u; + v_v1 = ((uint64_t)(self->private_impl.f_v1 * 14029467366897019727u)); + v_v1 = (((uint64_t)(v_v1 << 31u)) | (v_v1 >> 33u)); + v_v1 *= 11400714785074694791u; + v_v2 = ((uint64_t)(self->private_impl.f_v2 * 14029467366897019727u)); + v_v2 = (((uint64_t)(v_v2 << 31u)) | (v_v2 >> 33u)); + v_v2 *= 11400714785074694791u; + v_v3 = ((uint64_t)(self->private_impl.f_v3 * 14029467366897019727u)); + v_v3 = (((uint64_t)(v_v3 << 31u)) | (v_v3 >> 33u)); + v_v3 *= 11400714785074694791u; + v_ret = ((uint64_t)(((uint64_t)((v_ret ^ v_v0) * 11400714785074694791u)) + 9650029242287828579u)); + v_ret = ((uint64_t)(((uint64_t)((v_ret ^ v_v1) * 11400714785074694791u)) + 9650029242287828579u)); + v_ret = ((uint64_t)(((uint64_t)((v_ret ^ v_v2) * 11400714785074694791u)) + 9650029242287828579u)); + v_ret = ((uint64_t)(((uint64_t)((v_ret ^ v_v3) * 11400714785074694791u)) + 9650029242287828579u)); + v_ret += self->private_impl.f_length_modulo_u64; + } else { + v_ret += 2870177450012600261u; + v_ret += self->private_impl.f_length_modulo_u64; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + v_n = 32u; + v_n = wuffs_base__u32__min(v_n, self->private_impl.f_buf_len); + if (8u <= v_n) { + v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[0u])) | + (((uint64_t)(self->private_impl.f_buf_data[1u])) << 8u) | + (((uint64_t)(self->private_impl.f_buf_data[2u])) << 16u) | + (((uint64_t)(self->private_impl.f_buf_data[3u])) << 24u) | + (((uint64_t)(self->private_impl.f_buf_data[4u])) << 32u) | + (((uint64_t)(self->private_impl.f_buf_data[5u])) << 40u) | + (((uint64_t)(self->private_impl.f_buf_data[6u])) << 48u) | + (((uint64_t)(self->private_impl.f_buf_data[7u])) << 56u)); + v_buf_u64 *= 14029467366897019727u; + v_buf_u64 = (((uint64_t)(v_buf_u64 << 31u)) | (v_buf_u64 >> 33u)); + v_buf_u64 *= 11400714785074694791u; + v_ret ^= v_buf_u64; + v_ret = (((uint64_t)(v_ret << 27u)) | (v_ret >> 37u)); + v_ret *= 11400714785074694791u; + v_ret += 9650029242287828579u; + v_i = 8u; } - - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + if (16u <= v_n) { + v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[8u])) | + (((uint64_t)(self->private_impl.f_buf_data[9u])) << 8u) | + (((uint64_t)(self->private_impl.f_buf_data[10u])) << 16u) | + (((uint64_t)(self->private_impl.f_buf_data[11u])) << 24u) | + (((uint64_t)(self->private_impl.f_buf_data[12u])) << 32u) | + (((uint64_t)(self->private_impl.f_buf_data[13u])) << 40u) | + (((uint64_t)(self->private_impl.f_buf_data[14u])) << 48u) | + (((uint64_t)(self->private_impl.f_buf_data[15u])) << 56u)); + v_buf_u64 *= 14029467366897019727u; + v_buf_u64 = (((uint64_t)(v_buf_u64 << 31u)) | (v_buf_u64 >> 33u)); + v_buf_u64 *= 11400714785074694791u; + v_ret ^= v_buf_u64; + v_ret = (((uint64_t)(v_ret << 27u)) | (v_ret >> 37u)); + v_ret *= 11400714785074694791u; + v_ret += 9650029242287828579u; + v_i = 16u; + } + if (24u <= v_n) { + v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[16u])) | + (((uint64_t)(self->private_impl.f_buf_data[17u])) << 8u) | + (((uint64_t)(self->private_impl.f_buf_data[18u])) << 16u) | + (((uint64_t)(self->private_impl.f_buf_data[19u])) << 24u) | + (((uint64_t)(self->private_impl.f_buf_data[20u])) << 32u) | + (((uint64_t)(self->private_impl.f_buf_data[21u])) << 40u) | + (((uint64_t)(self->private_impl.f_buf_data[22u])) << 48u) | + (((uint64_t)(self->private_impl.f_buf_data[23u])) << 56u)); + v_buf_u64 *= 14029467366897019727u; + v_buf_u64 = (((uint64_t)(v_buf_u64 << 31u)) | (v_buf_u64 >> 33u)); + v_buf_u64 *= 11400714785074694791u; + v_ret ^= v_buf_u64; + v_ret = (((uint64_t)(v_ret << 27u)) | (v_ret >> 37u)); + v_ret *= 11400714785074694791u; + v_ret += 9650029242287828579u; + v_i = 24u; + } + if ((v_n & 4u) != 0u) { + v_i8 = (v_i & 24u); + v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[(v_i8 + 0u)])) | + (((uint32_t)(self->private_impl.f_buf_data[(v_i8 + 1u)])) << 8u) | + (((uint32_t)(self->private_impl.f_buf_data[(v_i8 + 2u)])) << 16u) | + (((uint32_t)(self->private_impl.f_buf_data[(v_i8 + 3u)])) << 24u)); + v_ret ^= ((uint64_t)(((uint64_t)(v_buf_u32)) * 11400714785074694791u)); + v_ret = (((uint64_t)(v_ret << 23u)) | (v_ret >> 41u)); + v_ret *= 14029467366897019727u; + v_ret += 1609587929392839161u; + v_i = (v_i8 + 4u); + } + while (v_i < v_n) { + v_ret ^= ((uint64_t)(((uint64_t)(self->private_impl.f_buf_data[v_i])) * 2870177450012600261u)); + v_ret = (((uint64_t)(v_ret << 11u)) | (v_ret >> 53u)); + v_ret *= 11400714785074694791u; + v_i += 1u; + } + v_ret ^= (v_ret >> 33u); + v_ret *= 14029467366897019727u; + v_ret ^= (v_ret >> 29u); + v_ret *= 1609587929392839161u; + v_ret ^= (v_ret >> 32u); + return ((uint64_t)(v_ret)); } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XZ) // ---------------- Status Codes Implementations -// ---------------- Private Consts +const char wuffs_xz__error__bad_bcj_offset[] = "#xz: bad BCJ offset"; +const char wuffs_xz__error__bad_block_header[] = "#xz: bad block header"; +const char wuffs_xz__error__bad_checksum[] = "#xz: bad checksum"; +const char wuffs_xz__error__bad_filter[] = "#xz: bad filter"; +const char wuffs_xz__error__bad_footer[] = "#xz: bad footer"; +const char wuffs_xz__error__bad_header[] = "#xz: bad header"; +const char wuffs_xz__error__bad_header_concatenated_stream[] = "#xz: bad header (concatenated stream)"; +const char wuffs_xz__error__bad_index[] = "#xz: bad index"; +const char wuffs_xz__error__bad_padding[] = "#xz: bad padding"; +const char wuffs_xz__error__truncated_input[] = "#xz: truncated input"; +const char wuffs_xz__error__unsupported_checksum_algorithm[] = "#xz: unsupported checksum algorithm"; +const char wuffs_xz__error__unsupported_filter[] = "#xz: unsupported filter"; +const char wuffs_xz__error__unsupported_filter_combination[] = "#xz: unsupported filter combination"; +const char wuffs_xz__error__internal_error_inconsistent_bcj_filter_state[] = "#xz: internal error: inconsistent BCJ filter state"; -#define WUFFS_XXHASH32__XXH_PRIME32_1 2654435761 +// ---------------- Private Consts -#define WUFFS_XXHASH32__XXH_PRIME32_2 2246822519 +static const bool +WUFFS_XZ__FILTER_04_X86_MASK_TO_ALLOWED_STATUS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1u, 1u, 1u, 0u, 1u, 0u, 0u, 0u, +}; -#define WUFFS_XXHASH32__XXH_PRIME32_3 3266489917 +static const uint8_t +WUFFS_XZ__FILTER_04_X86_MASK_TO_BIT_NUM[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 2u, 2u, 3u, 3u, 3u, 3u, +}; -#define WUFFS_XXHASH32__XXH_PRIME32_4 668265263 +static const uint32_t +WUFFS_XZ__FILTER_04_X86_MASK_TO_XOR_OPERAND[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 4294967295u, 16777215u, 65535u, 65535u, 255u, 255u, 255u, 255u, +}; -#define WUFFS_XXHASH32__XXH_PRIME32_5 374761393 +static const uint8_t +WUFFS_XZ__FILTER_06_IA64_BRANCH_TABLE[32] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 4u, 4u, 6u, 6u, 0u, 0u, 7u, 7u, + 4u, 4u, 0u, 0u, 4u, 4u, 0u, 0u, +}; -#define WUFFS_XXHASH32__INITIAL_V0 606290984 +#define WUFFS_XZ__QUIRKS_BASE 2021322752u -#define WUFFS_XXHASH32__INITIAL_V1 2246822519 +static const uint8_t +WUFFS_XZ__CHECKSUM_LENGTH[4] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 4u, 8u, 32u, +}; -#define WUFFS_XXHASH32__INITIAL_V2 0 +static const uint8_t +WUFFS_XZ__ZEROES[3] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, +}; -#define WUFFS_XXHASH32__INITIAL_V3 1640531535 +static const uint8_t +WUFFS_XZ__BCJ_OFFSET_ALIGNMENT[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 1u, 4u, 16u, 4u, + 2u, 4u, 4u, 2u, +}; // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_xxhash32__hasher__up( - wuffs_xxhash32__hasher* self, - wuffs_base__slice_u8 a_x); +static uint8_t +wuffs_xz__decoder__apply_non_final_filters( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_non_final_filters__choosy_default( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_04_x86( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_05_powerpc( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_06_ia64( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_07_arm( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_08_armthumb( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_09_sparc( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_0a_arm64( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_0b_riscv( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__do_transform_io( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__decode_block_header_with_padding( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__decode_block_header_sans_padding( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__verify_index( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__verify_footer( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src); // ---------------- VTables -const wuffs_base__hasher_u32__func_ptrs -wuffs_xxhash32__hasher__func_ptrs_for__wuffs_base__hasher_u32 = { - (uint32_t(*)(const void*))(&wuffs_xxhash32__hasher__checksum_u32), +const wuffs_base__io_transformer__func_ptrs +wuffs_xz__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_xz__decoder__dst_history_retain_length), (uint64_t(*)(const void*, - uint32_t))(&wuffs_xxhash32__hasher__get_quirk), + uint32_t))(&wuffs_xz__decoder__get_quirk), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_xxhash32__hasher__set_quirk), - (wuffs_base__empty_struct(*)(void*, - wuffs_base__slice_u8))(&wuffs_xxhash32__hasher__update), - (uint32_t(*)(void*, - wuffs_base__slice_u8))(&wuffs_xxhash32__hasher__update_u32), + uint64_t))(&wuffs_xz__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_xz__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_xz__decoder__workbuf_len), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_xxhash32__hasher__initialize( - wuffs_xxhash32__hasher* self, +wuffs_xz__decoder__initialize( + wuffs_xz__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -61482,23 +76592,53 @@ wuffs_xxhash32__hasher__initialize( } } + self->private_impl.choosy_apply_non_final_filters = &wuffs_xz__decoder__apply_non_final_filters__choosy_default; + + { + wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( + &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_crc64__ecma_hasher__initialize( + &self->private_data.f_crc64, sizeof(self->private_data.f_crc64), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_sha256__hasher__initialize( + &self->private_data.f_sha256, sizeof(self->private_data.f_sha256), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_lzma__decoder__initialize( + &self->private_data.f_lzma, sizeof(self->private_data.f_lzma), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__hasher_u32.vtable_name = - wuffs_base__hasher_u32__vtable_name; - self->private_impl.vtable_for__wuffs_base__hasher_u32.function_pointers = - (const void*)(&wuffs_xxhash32__hasher__func_ptrs_for__wuffs_base__hasher_u32); + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_xz__decoder__func_ptrs_for__wuffs_base__io_transformer); return wuffs_base__make_status(NULL); } -wuffs_xxhash32__hasher* -wuffs_xxhash32__hasher__alloc(void) { - wuffs_xxhash32__hasher* x = - (wuffs_xxhash32__hasher*)(calloc(sizeof(wuffs_xxhash32__hasher), 1)); +wuffs_xz__decoder* +wuffs_xz__decoder__alloc(void) { + wuffs_xz__decoder* x = + (wuffs_xz__decoder*)(calloc(1, sizeof(wuffs_xz__decoder))); if (!x) { return NULL; } - if (wuffs_xxhash32__hasher__initialize( - x, sizeof(wuffs_xxhash32__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + if (wuffs_xz__decoder__initialize( + x, sizeof(wuffs_xz__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { free(x); return NULL; } @@ -61506,18 +76646,511 @@ wuffs_xxhash32__hasher__alloc(void) { } size_t -sizeof__wuffs_xxhash32__hasher(void) { - return sizeof(wuffs_xxhash32__hasher); +sizeof__wuffs_xz__decoder(void) { + return sizeof(wuffs_xz__decoder); } // ---------------- Function Implementations -// -------- func xxhash32.hasher.get_quirk +// -------- func xz.decoder.apply_non_final_filters + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_non_final_filters( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + return (*self->private_impl.choosy_apply_non_final_filters)(self, a_dst_slice); +} + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_non_final_filters__choosy_default( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + uint32_t v_f = 0; + uint64_t v_i = 0; + uint32_t v_filter_id = 0; + uint32_t v_delta_dist = 0; + uint32_t v_delta_pos = 0; + uint8_t v_c8 = 0; + + if (self->private_impl.f_num_non_final_filters <= 0u) { + return 0u; + } + v_f = (self->private_impl.f_num_non_final_filters - 1u); + while (true) { + v_filter_id = (self->private_impl.f_filters[v_f] & 127u); + if (v_filter_id == 3u) { + v_delta_dist = (((self->private_impl.f_filters[v_f] >> 8u) & 255u) + 1u); + v_delta_pos = (self->private_impl.f_filters[v_f] >> 24u); + v_i = 0u; + while (v_i < ((uint64_t)(a_dst_slice.len))) { + v_c8 = a_dst_slice.ptr[v_i]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_c8 += self->private_data.f_filter_data[v_f][(((uint32_t)(v_delta_dist + v_delta_pos)) & 255u)]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_data.f_filter_data[v_f][(v_delta_pos & 255u)] = v_c8; + v_delta_pos -= 1u; + a_dst_slice.ptr[v_i] = v_c8; + v_i += 1u; + } + self->private_impl.f_filters[v_f] &= 65535u; + self->private_impl.f_filters[v_f] |= ((uint32_t)(v_delta_pos << 24u)); + } + if (v_f <= 0u) { + break; + } + v_f -= 1u; + } + return 0u; +} + +// -------- func xz.decoder.apply_filter_04_x86 + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_04_x86( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint64_t v_i = 0; + uint64_t v_prev_pos = 0; + uint32_t v_prev_mask = 0; + uint8_t v_c8 = 0; + uint32_t v_src = 0; + uint32_t v_dst = 0; + uint32_t v_bit_num = 0; + + v_s = a_dst_slice; + v_p = ((uint32_t)(self->private_impl.f_bcj_pos + 5u)); + v_prev_pos = 18446744073709551615u; + v_prev_mask = self->private_impl.f_bcj_x86_prev_mask; + while (((uint64_t)(v_s.len)) >= 5u) { + if (((uint8_t)(v_s.ptr[0u] & 254u)) != 232u) { + v_i += 1u; + v_p += 1u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + continue; + } + v_prev_pos = ((uint64_t)(v_i - v_prev_pos)); + if (v_prev_pos > 3u) { + v_prev_mask = 0u; + } else if (v_prev_pos > 0u) { + v_prev_mask = (((uint32_t)(v_prev_mask << (v_prev_pos - 1u))) & 7u); + if (v_prev_mask != 0u) { + v_c8 = v_s.ptr[((uint8_t)(4u - WUFFS_XZ__FILTER_04_X86_MASK_TO_BIT_NUM[(v_prev_mask & 7u)]))]; + if ( ! WUFFS_XZ__FILTER_04_X86_MASK_TO_ALLOWED_STATUS[(v_prev_mask & 7u)] || (v_c8 == 0u) || (v_c8 == 255u)) { + v_prev_pos = v_i; + v_prev_mask = (((uint32_t)(v_prev_mask << 1u)) | 1u); + v_i += 1u; + v_p += 1u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + continue; + } + } + } + v_prev_pos = v_i; + v_c8 = v_s.ptr[4u]; + if ((v_c8 != 0u) && (v_c8 != 255u)) { + v_prev_mask = (((uint32_t)(v_prev_mask << 1u)) | 1u); + v_i += 1u; + v_p += 1u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + continue; + } + v_src = ((((uint32_t)(v_s.ptr[1u])) << 0u) | + (((uint32_t)(v_s.ptr[2u])) << 8u) | + (((uint32_t)(v_s.ptr[3u])) << 16u) | + (((uint32_t)(v_s.ptr[4u])) << 24u)); + while (true) { + v_dst = ((uint32_t)(v_src - v_p)); + if (v_prev_mask == 0u) { + break; + } + v_bit_num = ((uint32_t)(WUFFS_XZ__FILTER_04_X86_MASK_TO_BIT_NUM[(v_prev_mask & 7u)])); + v_c8 = ((uint8_t)((v_dst >> (24u - (v_bit_num * 8u))))); + if ((v_c8 != 0u) && (v_c8 != 255u)) { + break; + } + v_src = (v_dst ^ WUFFS_XZ__FILTER_04_X86_MASK_TO_XOR_OPERAND[(v_prev_mask & 7u)]); + } + v_dst &= 33554431u; + v_dst |= ((uint32_t)(0u - (v_dst & 16777216u))); + v_s.ptr[1u] = ((uint8_t)((v_dst >> 0u))); + v_s.ptr[2u] = ((uint8_t)((v_dst >> 8u))); + v_s.ptr[3u] = ((uint8_t)((v_dst >> 16u))); + v_s.ptr[4u] = ((uint8_t)((v_dst >> 24u))); + v_i += 5u; + v_p += 5u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 5u); + } + v_prev_pos = ((uint64_t)(v_i - v_prev_pos)); + if (v_prev_pos > 3u) { + self->private_impl.f_bcj_x86_prev_mask = 0u; + } else if (v_prev_pos > 0u) { + self->private_impl.f_bcj_x86_prev_mask = ((uint32_t)(v_prev_mask << (v_prev_pos - 1u))); + } + self->private_impl.f_bcj_pos = ((uint32_t)(v_p - 5u)); + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_05_powerpc + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_05_powerpc( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 4u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 24u) | + (((uint32_t)(v_s.ptr[1u])) << 16u) | + (((uint32_t)(v_s.ptr[2u])) << 8u) | + (((uint32_t)(v_s.ptr[3u])) << 0u)); + if ((v_x & 4227858435u) == 1207959553u) { + v_x = ((((uint32_t)((v_x & 67108860u) - v_p)) & 67108860u) | 1207959553u); + v_s.ptr[0u] = ((uint8_t)((v_x >> 24u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 0u))); + } + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_06_ia64 + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_06_ia64( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_mask = 0; + uint32_t v_slot = 0; + uint32_t v_bit_pos = 0; + uint32_t v_byte_pos = 0; + uint32_t v_bit_res = 0; + uint64_t v_x = 0; + uint32_t v_j = 0; + uint64_t v_norm = 0; + uint32_t v_addr = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 16u) { + v_mask = ((uint32_t)(WUFFS_XZ__FILTER_06_IA64_BRANCH_TABLE[((uint8_t)(v_s.ptr[0u] & 31u))])); + v_slot = 0u; + while (true) { + do { + if (((v_mask >> v_slot) & 1u) == 0u) { + break; + } + v_bit_pos = ((v_slot * 41u) + 5u); + v_byte_pos = (v_bit_pos >> 3u); + v_bit_res = (v_bit_pos & 7u); + v_x = 0u; + v_j = 0u; + while (v_j < 6u) { + v_x |= (((uint64_t)(v_s.ptr[(v_j + v_byte_pos)])) << (8u * v_j)); + v_j += 1u; + } + v_norm = (v_x >> v_bit_res); + if ((((v_norm >> 37u) & 15u) != 5u) || (((v_norm >> 9u) & 7u) != 0u)) { + break; + } + v_addr = ((uint32_t)(((v_norm >> 13u) & 1048575u))); + v_addr |= (((uint32_t)(((v_norm >> 36u) & 1u))) << 20u); + v_addr <<= 4u; + v_addr -= v_p; + v_addr >>= 4u; + v_norm &= 18446743996400148479u; + v_norm |= (((uint64_t)((v_addr & 1048575u))) << 13u); + v_norm |= (((uint64_t)((v_addr & 1048576u))) << 16u); + v_x &= ((((uint64_t)(1u)) << v_bit_res) - 1u); + v_x |= ((uint64_t)(v_norm << v_bit_res)); + v_j = 0u; + while (v_j < 6u) { + v_s.ptr[(v_j + v_byte_pos)] = ((uint8_t)((v_x >> (8u * v_j)))); + v_j += 1u; + } + } while (0); + if (v_slot >= 2u) { + break; + } + v_slot += 1u; + } + v_p += 16u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 16u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_07_arm + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_07_arm( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + + v_s = a_dst_slice; + v_p = ((uint32_t)(self->private_impl.f_bcj_pos + 8u)); + while (((uint64_t)(v_s.len)) >= 4u) { + if (v_s.ptr[3u] == 235u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 0u) | + (((uint32_t)(v_s.ptr[1u])) << 8u) | + (((uint32_t)(v_s.ptr[2u])) << 16u) | + (((uint32_t)(v_s.ptr[3u])) << 24u)); + v_x = (((uint32_t)(((v_x & 16777215u) << 2u) - v_p)) >> 2u); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + } + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = ((uint32_t)(v_p - 8u)); + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_08_armthumb + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_08_armthumb( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + uint32_t v_y = 0; + + v_s = a_dst_slice; + v_p = ((uint32_t)(self->private_impl.f_bcj_pos + 4u)); + while (((uint64_t)(v_s.len)) >= 4u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 0u) | + (((uint32_t)(v_s.ptr[1u])) << 8u) | + (((uint32_t)(v_s.ptr[2u])) << 16u) | + (((uint32_t)(v_s.ptr[3u])) << 24u)); + if ((v_x & 4160813056u) != 4160811008u) { + v_p += 2u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); + continue; + } + v_y = ((((uint32_t)(((uint8_t)(v_s.ptr[0u] & 255u)))) << 11u) | + (((uint32_t)(((uint8_t)(v_s.ptr[1u] & 7u)))) << 19u) | + (((uint32_t)(((uint8_t)(v_s.ptr[2u] & 255u)))) << 0u) | + (((uint32_t)(((uint8_t)(v_s.ptr[3u] & 7u)))) << 8u)); + v_y = (((uint32_t)(((uint32_t)(v_y << 1u)) - v_p)) >> 1u); + v_s.ptr[0u] = ((uint8_t)((v_y >> 11u))); + v_s.ptr[1u] = ((uint8_t)((((v_y >> 19u) & 7u) | 240u))); + v_s.ptr[2u] = ((uint8_t)((v_y >> 0u))); + v_s.ptr[3u] = ((uint8_t)((((v_y >> 8u) & 7u) | 248u))); + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = ((uint32_t)(v_p - 4u)); + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_09_sparc + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_09_sparc( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 4u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 24u) | + (((uint32_t)(v_s.ptr[1u])) << 16u) | + (((uint32_t)(v_s.ptr[2u])) << 8u) | + (((uint32_t)(v_s.ptr[3u])) << 0u)); + if (((v_x >> 22u) == 256u) || ((v_x >> 22u) == 511u)) { + v_x = (((uint32_t)(((uint32_t)(v_x << 2u)) - v_p)) >> 2u); + v_x = ((1073741824u - (v_x & 4194304u)) | 1073741824u | (v_x & 4194303u)); + v_s.ptr[0u] = ((uint8_t)((v_x >> 24u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 0u))); + } + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_0a_arm64 + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_0a_arm64( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + uint32_t v_y = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 4u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 0u) | + (((uint32_t)(v_s.ptr[1u])) << 8u) | + (((uint32_t)(v_s.ptr[2u])) << 16u) | + (((uint32_t)(v_s.ptr[3u])) << 24u)); + if ((v_x >> 26u) == 37u) { + v_y = ((uint32_t)(v_x - (v_p >> 2u))); + v_x = (2483027968u | (v_y & 67108863u)); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 24u))); + } else if ((v_x & 2667577344u) == 2415919104u) { + v_y = (((v_x >> 29u) & 3u) | ((v_x >> 3u) & 2097148u)); + if ((((uint32_t)(v_y + 131072u)) & 1835008u) == 0u) { + v_y -= (v_p >> 12u); + v_x &= 2415919135u; + v_x |= ((v_y & 3u) << 29u); + v_x |= ((v_y & 262140u) << 3u); + v_x |= (((uint32_t)(0u - (v_y & 131072u))) & 14680064u); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 24u))); + } + } + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_0b_riscv + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_0b_riscv( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + uint32_t v_x27 = 0; + uint32_t v_y = 0; + uint32_t v_addr = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 8u) { + if (v_s.ptr[0u] == 239u) { + if (((uint8_t)(v_s.ptr[1u] & 13u)) != 0u) { + v_p += 2u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); + continue; + } + v_addr = ((((uint32_t)(((uint8_t)(v_s.ptr[1u] & 240u)))) << 13u) | (((uint32_t)(v_s.ptr[2u])) << 9u) | (((uint32_t)(v_s.ptr[3u])) << 1u)); + v_addr -= v_p; + v_s.ptr[1u] = ((uint8_t)(((uint8_t)(v_s.ptr[1u] & 15u)) | ((uint8_t)(((v_addr >> 8u) & 240u))))); + v_s.ptr[2u] = ((uint8_t)((((v_addr >> 16u) & 15u) | ((v_addr >> 7u) & 16u) | (((uint32_t)(v_addr << 4u)) & 224u)))); + v_s.ptr[3u] = ((uint8_t)((((v_addr >> 4u) & 127u) | ((v_addr >> 13u) & 128u)))); + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + continue; + } else if (((uint8_t)(v_s.ptr[0u] & 127u)) == 23u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 0u) | + (((uint32_t)(v_s.ptr[1u])) << 8u) | + (((uint32_t)(v_s.ptr[2u])) << 16u) | + (((uint32_t)(v_s.ptr[3u])) << 24u)); + if ((v_x & 3712u) != 0u) { + v_y = ((((uint32_t)(v_s.ptr[4u])) << 0u) | + (((uint32_t)(v_s.ptr[5u])) << 8u) | + (((uint32_t)(v_s.ptr[6u])) << 16u) | + (((uint32_t)(v_s.ptr[7u])) << 24u)); + if (((((uint32_t)(v_x << 8u)) ^ ((uint32_t)(v_y - 3u))) & 1015811u) != 0u) { + v_p += 6u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 6u); + continue; + } + v_addr = ((v_x & 4294963200u) | (v_y >> 20u)); + v_x = (279u | ((uint32_t)(v_y << 12u))); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 24u))); + v_s.ptr[4u] = ((uint8_t)((v_addr >> 0u))); + v_s.ptr[5u] = ((uint8_t)((v_addr >> 8u))); + v_s.ptr[6u] = ((uint8_t)((v_addr >> 16u))); + v_s.ptr[7u] = ((uint8_t)((v_addr >> 24u))); + v_p += 8u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 8u); + continue; + } + v_x27 = (v_x >> 27u); + if (((uint32_t)(((uint32_t)(v_x - 12567u)) << 18u)) >= (v_x27 & 29u)) { + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + continue; + } + v_addr = ((((uint32_t)(v_s.ptr[4u])) << 24u) | + (((uint32_t)(v_s.ptr[5u])) << 16u) | + (((uint32_t)(v_s.ptr[6u])) << 8u) | + (((uint32_t)(v_s.ptr[7u])) << 0u)); + v_addr -= v_p; + v_y = ((v_x >> 12u) | ((uint32_t)(v_addr << 20u))); + v_x = (23u | (v_x27 << 7u) | (((uint32_t)(v_addr + 2048u)) & 4294963200u)); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 24u))); + v_s.ptr[4u] = ((uint8_t)((v_y >> 0u))); + v_s.ptr[5u] = ((uint8_t)((v_y >> 8u))); + v_s.ptr[6u] = ((uint8_t)((v_y >> 16u))); + v_s.ptr[7u] = ((uint8_t)((v_y >> 24u))); + v_p += 8u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 8u); + continue; + } + v_p += 2u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash32__hasher__get_quirk( - const wuffs_xxhash32__hasher* self, +wuffs_xz__decoder__get_quirk( + const wuffs_xz__decoder* self, uint32_t a_key) { if (!self) { return 0; @@ -61527,15 +77160,24 @@ wuffs_xxhash32__hasher__get_quirk( return 0; } + if (a_key == 1u) { + if (self->private_impl.f_ignore_checksum) { + return 1u; + } + } else if (a_key == 2021322752u) { + if (self->private_impl.f_standalone_format) { + return 1u; + } + } return 0u; } -// -------- func xxhash32.hasher.set_quirk +// -------- func xz.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xxhash32__hasher__set_quirk( - wuffs_xxhash32__hasher* self, +wuffs_xz__decoder__set_quirk( + wuffs_xz__decoder* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -61548,747 +77190,1667 @@ wuffs_xxhash32__hasher__set_quirk( : wuffs_base__error__initialize_not_called); } + if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + return wuffs_base__make_status(NULL); + } else if (a_key == 2021322752u) { + self->private_impl.f_standalone_format = (a_value > 0u); + return wuffs_base__make_status(NULL); + } return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func xxhash32.hasher.update +// -------- func xz.decoder.dst_history_retain_length WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_xxhash32__hasher__update( - wuffs_xxhash32__hasher* self, - wuffs_base__slice_u8 a_x) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_xz__decoder__dst_history_retain_length( + const wuffs_xz__decoder* self) { if (!self) { - return wuffs_base__make_empty_struct(); + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_lzma__decoder__dst_history_retain_length(&self->private_data.f_lzma); +} + +// -------- func xz.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_xz__decoder__workbuf_len( + const wuffs_xz__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_lzma__decoder__workbuf_len(&self->private_data.f_lzma); +} + +// -------- func xz.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xz__decoder__transform_io( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_xz__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_xz__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_transform_io = 0; + goto exit; } - wuffs_base__slice_u8 v_remaining = {0}; + goto suspend; + suspend: + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - if ((self->private_impl.f_length_modulo_u32 == 0u) && ! self->private_impl.f_length_overflows_u32) { - self->private_impl.f_v0 = 606290984u; - self->private_impl.f_v1 = 2246822519u; - self->private_impl.f_v2 = 0u; - self->private_impl.f_v3 = 1640531535u; - } - while (((uint64_t)(a_x.len)) > 0u) { - v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0u); - if (((uint64_t)(a_x.len)) > 16777216u) { - v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 16777216u); - a_x = wuffs_base__slice_u8__subslice_j(a_x, 16777216u); - } - wuffs_xxhash32__hasher__up(self, a_x); - a_x = v_remaining; + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return wuffs_base__make_empty_struct(); + return status; } -// -------- func xxhash32.hasher.update_u32 +// -------- func xz.decoder.do_transform_io WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_xxhash32__hasher__update_u32( - wuffs_xxhash32__hasher* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return 0; - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; - } +static wuffs_base__status +wuffs_xz__decoder__do_transform_io( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_xxhash32__hasher__update(self, a_x); - return wuffs_xxhash32__hasher__checksum_u32(self); -} + uint64_t v_header_magic = 0; + uint64_t v_dmark = 0; + uint64_t v_smark = 0; + uint8_t v_i8 = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_checksum32_have = 0; + uint32_t v_checksum32_want = 0; + uint64_t v_checksum64_have = 0; + uint64_t v_checksum64_want = 0; + wuffs_base__bitvec256 v_checksum256_have = {0}; + uint64_t v_compressed_size = 0; + uint64_t v_uncompressed_size = 0; + uint32_t v_hash = 0; + uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + uint16_t v_footer_magic = 0; -// -------- func xxhash32.hasher.up + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_xxhash32__hasher__up( - wuffs_xxhash32__hasher* self, - wuffs_base__slice_u8 a_x) { - uint32_t v_new_lmu = 0; - uint32_t v_buf_u32 = 0; - uint32_t v_buf_len = 0; - uint32_t v_v0 = 0; - uint32_t v_v1 = 0; - uint32_t v_v2 = 0; - uint32_t v_v3 = 0; - wuffs_base__slice_u8 v_p = {0}; + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; + if (coro_susp_point) { + v_checksum32_have = self->private_data.s_do_transform_io.v_checksum32_have; + v_checksum32_want = self->private_data.s_do_transform_io.v_checksum32_want; + v_checksum256_have = self->private_data.s_do_transform_io.v_checksum256_have; + v_compressed_size = self->private_data.s_do_transform_io.v_compressed_size; + v_uncompressed_size = self->private_data.s_do_transform_io.v_uncompressed_size; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - v_new_lmu = ((uint32_t)(self->private_impl.f_length_modulo_u32 + ((uint32_t)(((uint64_t)(a_x.len)))))); - self->private_impl.f_length_overflows_u32 = ((v_new_lmu < self->private_impl.f_length_modulo_u32) || self->private_impl.f_length_overflows_u32); - self->private_impl.f_length_modulo_u32 = v_new_lmu; - while (true) { - if (self->private_impl.f_buf_len >= 16u) { - v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[0u])) | - (((uint32_t)(self->private_impl.f_buf_data[1u])) << 8u) | - (((uint32_t)(self->private_impl.f_buf_data[2u])) << 16u) | - (((uint32_t)(self->private_impl.f_buf_data[3u])) << 24u)); - v_v0 = ((uint32_t)(self->private_impl.f_v0 + ((uint32_t)(v_buf_u32 * 2246822519u)))); - v_v0 = (((uint32_t)(v_v0 << 13u)) | (v_v0 >> 19u)); - self->private_impl.f_v0 = ((uint32_t)(v_v0 * 2654435761u)); - v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[4u])) | - (((uint32_t)(self->private_impl.f_buf_data[5u])) << 8u) | - (((uint32_t)(self->private_impl.f_buf_data[6u])) << 16u) | - (((uint32_t)(self->private_impl.f_buf_data[7u])) << 24u)); - v_v1 = ((uint32_t)(self->private_impl.f_v1 + ((uint32_t)(v_buf_u32 * 2246822519u)))); - v_v1 = (((uint32_t)(v_v1 << 13u)) | (v_v1 >> 19u)); - self->private_impl.f_v1 = ((uint32_t)(v_v1 * 2654435761u)); - v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[8u])) | - (((uint32_t)(self->private_impl.f_buf_data[9u])) << 8u) | - (((uint32_t)(self->private_impl.f_buf_data[10u])) << 16u) | - (((uint32_t)(self->private_impl.f_buf_data[11u])) << 24u)); - v_v2 = ((uint32_t)(self->private_impl.f_v2 + ((uint32_t)(v_buf_u32 * 2246822519u)))); - v_v2 = (((uint32_t)(v_v2 << 13u)) | (v_v2 >> 19u)); - self->private_impl.f_v2 = ((uint32_t)(v_v2 * 2654435761u)); - v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[12u])) | - (((uint32_t)(self->private_impl.f_buf_data[13u])) << 8u) | - (((uint32_t)(self->private_impl.f_buf_data[14u])) << 16u) | - (((uint32_t)(self->private_impl.f_buf_data[15u])) << 24u)); - v_v3 = ((uint32_t)(self->private_impl.f_v3 + ((uint32_t)(v_buf_u32 * 2246822519u)))); - v_v3 = (((uint32_t)(v_v3 << 13u)) | (v_v3 >> 19u)); - self->private_impl.f_v3 = ((uint32_t)(v_v3 * 2654435761u)); - self->private_impl.f_buf_len = 0u; - break; - } - if (((uint64_t)(a_x.len)) <= 0u) { - return wuffs_base__make_empty_struct(); - } - self->private_impl.f_buf_data[self->private_impl.f_buf_len] = a_x.ptr[0u]; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { + t_0 = ((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))); + iop_a_src += 6; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 40) { + t_0 = ((uint64_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_header_magic = t_0; + } + if (v_header_magic != 388031461373u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { + t_1 = ((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))); + iop_a_src += 6; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 40) { + t_1 = ((uint64_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_header_magic = t_1; + } + if (v_header_magic == 72400582410240u) { + self->private_impl.f_checksummer = 0u; + } else if (v_header_magic == 60327687946496u) { + self->private_impl.f_checksummer = 1u; + } else if (v_header_magic == 77742513456128u) { + self->private_impl.f_checksummer = 2u; + } else if (v_header_magic == 177077137508864u) { + self->private_impl.f_checksummer = 3u; + } else if ((v_header_magic & 61695u) != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_header); + goto exit; + } else { + v_header_magic = (15u & (v_header_magic >> 8u)); + if ((v_header_magic != 0u) && + (v_header_magic != 1u) && + (v_header_magic != 4u) && + (v_header_magic != 10u)) { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_checksum_algorithm); + goto exit; + } + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + self->private_impl.f_flags = ((uint16_t)(v_header_magic)); + self->private_impl.f_num_actual_blocks = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + continue; + } else if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) == 0u) { + break; + } + self->private_impl.f_num_actual_blocks += 1u; + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + self->private_impl.f_compressed_size_for_index = 4u; + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_xz__decoder__decode_block_header_with_padding(self, a_src); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_compressed_size_for_index, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); + if ( ! self->private_impl.f_ignore_checksum) { + v_checksum32_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; + } + } + v_checksum32_want = t_3; + } + if (self->private_impl.f_ignore_checksum) { + } else if (v_checksum32_have != v_checksum32_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } else { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_private_impl__ignore_status(wuffs_crc64__ecma_hasher__initialize(&self->private_data.f_crc64, + sizeof (wuffs_crc64__ecma_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_private_impl__ignore_status(wuffs_sha256__hasher__initialize(&self->private_data.f_sha256, + sizeof (wuffs_sha256__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + v_compressed_size = 0u; + v_uncompressed_size = 0u; + while (true) { + if (((uint64_t)(self->private_impl.f_bcj_undo_index)) > ((uint64_t)(io2_a_dst - iop_a_dst))) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + continue; + } + v_dmark = ((uint64_t)(iop_a_dst - io0_a_dst)); + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + if (self->private_impl.f_num_non_final_filters == 0u) { + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_4 = wuffs_lzma__decoder__transform_io(&self->private_data.f_lzma, a_dst, a_src, a_workbuf); + v_status = t_4; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + } else { + if (self->private_impl.f_bcj_undo_index > 0u) { + wuffs_private_impl__io_writer__copy_from_slice(&iop_a_dst, io2_a_dst,wuffs_base__make_slice_u8(self->private_data.f_filter_data[0u], self->private_impl.f_bcj_undo_index)); + self->private_impl.f_bcj_undo_index = 0u; + } + { + uint8_t* o_0_io0_a_dst = io0_a_dst; + uint8_t* o_0_io1_a_dst = io1_a_dst; + io0_a_dst = iop_a_dst; + io1_a_dst = iop_a_dst; + wuffs_base__io_buffer o_0_a_dst; + if (a_dst) { + memcpy(&o_0_a_dst, a_dst, sizeof(*a_dst)); + size_t wi0 = a_dst->meta.wi; + a_dst->data.ptr += wi0; + a_dst->data.len -= wi0; + a_dst->meta.ri = 0; + a_dst->meta.wi = 0; + a_dst->meta.pos = wuffs_base__u64__sat_add(a_dst->meta.pos, wi0); + } + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_5 = wuffs_lzma__decoder__transform_io(&self->private_data.f_lzma, a_dst, a_src, a_workbuf); + v_status = t_5; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (a_dst) { + memcpy(a_dst, &o_0_a_dst, sizeof(*a_dst)); + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + io0_a_dst = o_0_io0_a_dst; + io1_a_dst = o_0_io1_a_dst; + } + } + self->private_impl.f_bcj_undo_index = wuffs_xz__decoder__apply_non_final_filters(self, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + if ((self->private_impl.f_bcj_undo_index > 0u) && ! wuffs_base__status__is_ok(&v_status)) { + v_i8 = ((uint8_t)(self->private_impl.f_bcj_undo_index - 1u)); + while (true) { + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_xz__error__internal_error_inconsistent_bcj_filter_state); + goto exit; + } + self->private_data.f_filter_data[0u][v_i8] = iop_a_dst[-1]; + iop_a_dst--; + if (v_i8 <= 0u) { + break; + } #if defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" #endif - self->private_impl.f_buf_len += 1u; + v_i8 -= 1u; #if defined(__GNUC__) #pragma GCC diagnostic pop #endif - a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); - } - v_buf_len = ((uint32_t)((self->private_impl.f_buf_len & 15u))); - v_v0 = self->private_impl.f_v0; - v_v1 = self->private_impl.f_v1; - v_v2 = self->private_impl.f_v2; - v_v3 = self->private_impl.f_v3; - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 16; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 16) * 16); - while (v_p.ptr < i_end0_p) { - v_buf_u32 = (((uint32_t)(v_p.ptr[0u])) | - (((uint32_t)(v_p.ptr[1u])) << 8u) | - (((uint32_t)(v_p.ptr[2u])) << 16u) | - (((uint32_t)(v_p.ptr[3u])) << 24u)); - v_v0 = ((uint32_t)(v_v0 + ((uint32_t)(v_buf_u32 * 2246822519u)))); - v_v0 = (((uint32_t)(v_v0 << 13u)) | (v_v0 >> 19u)); - v_v0 = ((uint32_t)(v_v0 * 2654435761u)); - v_buf_u32 = (((uint32_t)(v_p.ptr[4u])) | - (((uint32_t)(v_p.ptr[5u])) << 8u) | - (((uint32_t)(v_p.ptr[6u])) << 16u) | - (((uint32_t)(v_p.ptr[7u])) << 24u)); - v_v1 = ((uint32_t)(v_v1 + ((uint32_t)(v_buf_u32 * 2246822519u)))); - v_v1 = (((uint32_t)(v_v1 << 13u)) | (v_v1 >> 19u)); - v_v1 = ((uint32_t)(v_v1 * 2654435761u)); - v_buf_u32 = (((uint32_t)(v_p.ptr[8u])) | - (((uint32_t)(v_p.ptr[9u])) << 8u) | - (((uint32_t)(v_p.ptr[10u])) << 16u) | - (((uint32_t)(v_p.ptr[11u])) << 24u)); - v_v2 = ((uint32_t)(v_v2 + ((uint32_t)(v_buf_u32 * 2246822519u)))); - v_v2 = (((uint32_t)(v_v2 << 13u)) | (v_v2 >> 19u)); - v_v2 = ((uint32_t)(v_v2 * 2654435761u)); - v_buf_u32 = (((uint32_t)(v_p.ptr[12u])) | - (((uint32_t)(v_p.ptr[13u])) << 8u) | - (((uint32_t)(v_p.ptr[14u])) << 16u) | - (((uint32_t)(v_p.ptr[15u])) << 24u)); - v_v3 = ((uint32_t)(v_v3 + ((uint32_t)(v_buf_u32 * 2246822519u)))); - v_v3 = (((uint32_t)(v_v3 << 13u)) | (v_v3 >> 19u)); - v_v3 = ((uint32_t)(v_v3 * 2654435761u)); - v_p.ptr += 16; - } - v_p.len = 1; - uint8_t* i_end1_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end1_p) { - self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; - v_buf_len = ((v_buf_len + 1u) & 15u); - v_p.ptr += 1; + } + } + } + v_compressed_size += wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src))); + v_uncompressed_size += wuffs_private_impl__io__count_since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst))); + if (self->private_impl.f_ignore_checksum) { + } else if (self->private_impl.f_checksummer == 1u) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + } else if (self->private_impl.f_checksummer == 2u) { + wuffs_crc64__ecma_hasher__update(&self->private_data.f_crc64, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + } else if (self->private_impl.f_checksummer == 3u) { + wuffs_sha256__hasher__update(&self->private_data.f_sha256, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + } + if ((self->private_impl.f_block_has_compressed_size && (self->private_impl.f_block_compressed_size != v_compressed_size)) || (self->private_impl.f_block_has_uncompressed_size && (self->private_impl.f_block_uncompressed_size != v_uncompressed_size))) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_compressed_size_for_index, v_compressed_size); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_compressed_size_for_index, ((uint64_t)(WUFFS_XZ__CHECKSUM_LENGTH[self->private_impl.f_checksummer]))); + self->private_impl.f_verification_have_total_sizes[0u] += self->private_impl.f_compressed_size_for_index; + v_hash = ((uint32_t)((self->private_impl.f_compressed_size_for_index ^ (self->private_impl.f_compressed_size_for_index >> 32u)))); + v_hash *= 3432918353u; + v_hash = (((uint32_t)(v_hash << 15u)) | (v_hash >> 17u)); + v_hash *= 461845907u; + v_hash ^= self->private_impl.f_verification_have_hashed_sizes[0u]; + v_hash = (((uint32_t)(v_hash << 13u)) | (v_hash >> 19u)); + self->private_impl.f_verification_have_hashed_sizes[0u] = ((uint32_t)(((uint32_t)(v_hash * 5u)) + 3864292196u)); + self->private_impl.f_verification_have_total_sizes[1u] += v_uncompressed_size; + v_hash = ((uint32_t)((v_uncompressed_size ^ (v_uncompressed_size >> 32u)))); + v_hash *= 3432918353u; + v_hash = (((uint32_t)(v_hash << 15u)) | (v_hash >> 17u)); + v_hash *= 461845907u; + v_hash ^= self->private_impl.f_verification_have_hashed_sizes[1u]; + v_hash = (((uint32_t)(v_hash << 13u)) | (v_hash >> 19u)); + self->private_impl.f_verification_have_hashed_sizes[1u] = ((uint32_t)(((uint32_t)(v_hash * 5u)) + 3864292196u)); + while ((v_compressed_size & 3u) != 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_padding); + goto exit; + } + v_compressed_size += 1u; + } + self->private_impl.f_lzma_needs_reset = true; + if (self->private_impl.f_ignore_checksum) { + self->private_data.s_do_transform_io.scratch = ((uint32_t)(WUFFS_XZ__CHECKSUM_LENGTH[self->private_impl.f_checksummer])); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (self->private_data.s_do_transform_io.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_transform_io.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_transform_io.scratch; + } else if (self->private_impl.f_checksummer == 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + uint32_t t_7; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_7 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; + if (num_bits_7 == 24) { + t_7 = ((uint32_t)(*scratch)); + break; + } + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)) << 56; + } + } + v_checksum32_want = t_7; + } + v_checksum32_have = wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32); + if (v_checksum32_have != v_checksum32_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + } else if (self->private_impl.f_checksummer == 2u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + uint64_t t_8; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_8 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_8 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_8; + if (num_bits_8 == 56) { + t_8 = ((uint64_t)(*scratch)); + break; + } + num_bits_8 += 8u; + *scratch |= ((uint64_t)(num_bits_8)) << 56; + } + } + v_checksum64_want = t_8; + } + v_checksum64_have = wuffs_crc64__ecma_hasher__checksum_u64(&self->private_data.f_crc64); + if (v_checksum64_have != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + } else if (self->private_impl.f_checksummer == 3u) { + v_checksum256_have = wuffs_sha256__hasher__checksum_bitvec256(&self->private_data.f_sha256); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + uint64_t t_9; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_9 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_9 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_9); + if (num_bits_9 == 56) { + t_9 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_9 += 8u; + *scratch |= ((uint64_t)(num_bits_9)); + } + } + v_checksum64_want = t_9; + } + if (wuffs_base__bitvec256__get_u64(&v_checksum256_have, 3u) != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + uint64_t t_10; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_10 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_10 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_10); + if (num_bits_10 == 56) { + t_10 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_10 += 8u; + *scratch |= ((uint64_t)(num_bits_10)); + } + } + v_checksum64_want = t_10; + } + if (wuffs_base__bitvec256__get_u64(&v_checksum256_have, 2u) != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); + uint64_t t_11; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_11 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_11 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_11); + if (num_bits_11 == 56) { + t_11 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_11 += 8u; + *scratch |= ((uint64_t)(num_bits_11)); + } + } + v_checksum64_want = t_11; + } + if (wuffs_base__bitvec256__get_u64(&v_checksum256_have, 1u) != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + uint64_t t_12; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_12 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_12 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_12); + if (num_bits_12 == 56) { + t_12 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_12 += 8u; + *scratch |= ((uint64_t)(num_bits_12)); + } + } + v_checksum64_want = t_12; + } + if (wuffs_base__bitvec256__get_u64(&v_checksum256_have, 0u) != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + } + } + self->private_impl.f_backwards_size = 0u; + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_13 = wuffs_xz__decoder__verify_index(self, a_src); + v_status = t_13; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_backwards_size, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(25); + } + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_XZ__ZEROES), (3u & ((uint64_t)(0u - (3u & self->private_impl.f_backwards_size)))))); + } + while ((self->private_impl.f_backwards_size & 3u) != 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(26); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_14 = *iop_a_src++; + v_c8 = t_14; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_backwards_size += 1u; + } + self->private_impl.f_backwards_size >>= 2u; + if ((self->private_impl.f_backwards_size == 0u) || (self->private_impl.f_backwards_size > 4294967295u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(27); + uint32_t t_15; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_15 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(28); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_15 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_15; + if (num_bits_15 == 24) { + t_15 = ((uint32_t)(*scratch)); + break; + } + num_bits_15 += 8u; + *scratch |= ((uint64_t)(num_bits_15)) << 56; + } + } + v_checksum32_want = t_15; + } + if (self->private_impl.f_ignore_checksum) { + } else if (v_checksum32_want != wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } else { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(29); + uint32_t t_16; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_16 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(30); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_16 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_16; + if (num_bits_16 == 24) { + t_16 = ((uint32_t)(*scratch)); + break; + } + num_bits_16 += 8u; + *scratch |= ((uint64_t)(num_bits_16)) << 56; + } + } + v_checksum32_want = t_16; + } + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_17 = wuffs_xz__decoder__verify_footer(self, a_src); + v_status = t_17; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(31); + } + if ( ! self->private_impl.f_ignore_checksum && (v_checksum32_want != wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32))) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(32); + uint16_t t_18; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_18 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(33); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_18 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_18; + if (num_bits_18 == 8) { + t_18 = ((uint16_t)(*scratch)); + break; + } + num_bits_18 += 8u; + *scratch |= ((uint64_t)(num_bits_18)) << 56; + } + } + v_footer_magic = t_18; + } + if (v_footer_magic != 23129u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_footer); + goto exit; + } + if ( ! self->private_impl.f_standalone_format) { + break; + } + while (true) { + while (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + if (a_src && a_src->meta.closed) { + if (((uint64_t)(io2_a_src - iop_a_src)) == 0u) { + goto label__streams__break; + } else { + status = wuffs_base__make_status(wuffs_xz__error__truncated_input); + goto exit; + } + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(34); + } + v_c32 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + if (v_c32 == 1484404733u) { + break; + } else if (v_c32 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_header_concatenated_stream); + goto exit; + } + iop_a_src += 4u; + } + self->private_impl.f_started_verify_index = false; } - v_p.len = 0; - } - self->private_impl.f_buf_len = ((uint8_t)(v_buf_len)); - self->private_impl.f_v0 = v_v0; - self->private_impl.f_v1 = v_v1; - self->private_impl.f_v2 = v_v2; - self->private_impl.f_v3 = v_v3; - return wuffs_base__make_empty_struct(); -} - -// -------- func xxhash32.hasher.checksum_u32 + label__streams__break:; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_xxhash32__hasher__checksum_u32( - const wuffs_xxhash32__hasher* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + ok: + self->private_impl.p_do_transform_io = 0; + goto exit; } - uint32_t v_ret = 0; - uint32_t v_i = 0; - uint32_t v_n = 0; - uint32_t v_buf_u32 = 0; + goto suspend; + suspend: + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_transform_io.v_checksum32_have = v_checksum32_have; + self->private_data.s_do_transform_io.v_checksum32_want = v_checksum32_want; + self->private_data.s_do_transform_io.v_checksum256_have = v_checksum256_have; + self->private_data.s_do_transform_io.v_compressed_size = v_compressed_size; + self->private_data.s_do_transform_io.v_uncompressed_size = v_uncompressed_size; - if ((self->private_impl.f_length_modulo_u32 >= 16u) || self->private_impl.f_length_overflows_u32) { - v_ret += (((uint32_t)(self->private_impl.f_v0 << 1u)) | (self->private_impl.f_v0 >> 31u)); - v_ret += (((uint32_t)(self->private_impl.f_v1 << 7u)) | (self->private_impl.f_v1 >> 25u)); - v_ret += (((uint32_t)(self->private_impl.f_v2 << 12u)) | (self->private_impl.f_v2 >> 20u)); - v_ret += (((uint32_t)(self->private_impl.f_v3 << 18u)) | (self->private_impl.f_v3 >> 14u)); - v_ret += self->private_impl.f_length_modulo_u32; - } else { - v_ret += 374761393u; - v_ret += self->private_impl.f_length_modulo_u32; - } - v_n = 16u; - v_n = wuffs_base__u32__min(v_n, ((uint32_t)(self->private_impl.f_buf_len))); - if (4u <= v_n) { - v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[0u])) | - (((uint32_t)(self->private_impl.f_buf_data[1u])) << 8u) | - (((uint32_t)(self->private_impl.f_buf_data[2u])) << 16u) | - (((uint32_t)(self->private_impl.f_buf_data[3u])) << 24u)); - v_ret += ((uint32_t)(v_buf_u32 * 3266489917u)); - v_ret = (((uint32_t)(v_ret << 17u)) | (v_ret >> 15u)); - v_ret *= 668265263u; - v_i = 4u; - } - if (8u <= v_n) { - v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[4u])) | - (((uint32_t)(self->private_impl.f_buf_data[5u])) << 8u) | - (((uint32_t)(self->private_impl.f_buf_data[6u])) << 16u) | - (((uint32_t)(self->private_impl.f_buf_data[7u])) << 24u)); - v_ret += ((uint32_t)(v_buf_u32 * 3266489917u)); - v_ret = (((uint32_t)(v_ret << 17u)) | (v_ret >> 15u)); - v_ret *= 668265263u; - v_i = 8u; - } - if (12u <= v_n) { - v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[8u])) | - (((uint32_t)(self->private_impl.f_buf_data[9u])) << 8u) | - (((uint32_t)(self->private_impl.f_buf_data[10u])) << 16u) | - (((uint32_t)(self->private_impl.f_buf_data[11u])) << 24u)); - v_ret += ((uint32_t)(v_buf_u32 * 3266489917u)); - v_ret = (((uint32_t)(v_ret << 17u)) | (v_ret >> 15u)); - v_ret *= 668265263u; - v_i = 12u; + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - while (v_i < v_n) { - v_ret += ((uint32_t)(((uint32_t)(self->private_impl.f_buf_data[v_i])) * 374761393u)); - v_ret = (((uint32_t)(v_ret << 11u)) | (v_ret >> 21u)); - v_ret *= 2654435761u; - v_i += 1u; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_ret ^= (v_ret >> 15u); - v_ret *= 2246822519u; - v_ret ^= (v_ret >> 13u); - v_ret *= 3266489917u; - v_ret ^= (v_ret >> 16u); - return v_ret; -} - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) - -// ---------------- Status Codes Implementations -// ---------------- Private Consts + return status; +} -#define WUFFS_XXHASH64__XXH_PRIME64_1 11400714785074694791 +// -------- func xz.decoder.decode_block_header_with_padding -#define WUFFS_XXHASH64__XXH_PRIME64_2 14029467366897019727 +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__decode_block_header_with_padding( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -#define WUFFS_XXHASH64__XXH_PRIME64_3 1609587929392839161 + uint8_t v_c8 = 0; + uint64_t v_padded_size_have = 0; + uint64_t v_padded_size_want = 0; + uint64_t v_smark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); -#define WUFFS_XXHASH64__XXH_PRIME64_4 9650029242287828579 + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } -#define WUFFS_XXHASH64__XXH_PRIME64_5 2870177450012600261 + uint32_t coro_susp_point = self->private_impl.p_decode_block_header_with_padding; + if (coro_susp_point) { + v_padded_size_have = self->private_data.s_decode_block_header_with_padding.v_padded_size_have; + v_padded_size_want = self->private_data.s_decode_block_header_with_padding.v_padded_size_want; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -#define WUFFS_XXHASH64__INITIAL_V0 6983438078262162902 + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + v_padded_size_want = ((uint64_t)((((uint64_t)(v_c8)) * 4u) - 1u)); + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_1 = wuffs_xz__decoder__decode_block_header_sans_padding(self, a_src); + v_status = t_1; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u64__sat_add_indirect(&v_padded_size_have, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + if (v_padded_size_have > v_padded_size_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + while (v_padded_size_have < v_padded_size_want) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + v_padded_size_have += 1u; + } -#define WUFFS_XXHASH64__INITIAL_V1 14029467366897019727 + ok: + self->private_impl.p_decode_block_header_with_padding = 0; + goto exit; + } -#define WUFFS_XXHASH64__INITIAL_V2 0 + goto suspend; + suspend: + self->private_impl.p_decode_block_header_with_padding = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_block_header_with_padding.v_padded_size_have = v_padded_size_have; + self->private_data.s_decode_block_header_with_padding.v_padded_size_want = v_padded_size_want; -#define WUFFS_XXHASH64__INITIAL_V3 7046029288634856825 + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -// ---------------- Private Initializer Prototypes + return status; +} -// ---------------- Private Function Prototypes +// -------- func xz.decoder.decode_block_header_sans_padding WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_xxhash64__hasher__up( - wuffs_xxhash64__hasher* self, - wuffs_base__slice_u8 a_x); - -// ---------------- VTables - -const wuffs_base__hasher_u64__func_ptrs -wuffs_xxhash64__hasher__func_ptrs_for__wuffs_base__hasher_u64 = { - (uint64_t(*)(const void*))(&wuffs_xxhash64__hasher__checksum_u64), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_xxhash64__hasher__get_quirk), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_xxhash64__hasher__set_quirk), - (wuffs_base__empty_struct(*)(void*, - wuffs_base__slice_u8))(&wuffs_xxhash64__hasher__update), - (uint64_t(*)(void*, - wuffs_base__slice_u8))(&wuffs_xxhash64__hasher__update_u64), -}; +static wuffs_base__status +wuffs_xz__decoder__decode_block_header_sans_padding( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// ---------------- Initializer Implementations + uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + uint32_t v_alignment = 0; + uint8_t v_flags = 0; + uint8_t v_filter_id = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_shift = 0; + uint32_t v_f = 0; + uint32_t v_k = 0; -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_xxhash64__hasher__initialize( - wuffs_xxhash64__hasher* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + + uint32_t coro_susp_point = self->private_impl.p_decode_block_header_sans_padding; + if (coro_susp_point) { + v_flags = self->private_data.s_decode_block_header_sans_padding.v_flags; + v_filter_id = self->private_data.s_decode_block_header_sans_padding.v_filter_id; + v_shift = self->private_data.s_decode_block_header_sans_padding.v_shift; + v_f = self->private_data.s_decode_block_header_sans_padding.v_f; } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_flags = t_0; } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + self->private_impl.f_num_non_final_filters = ((uint32_t)(((uint8_t)(v_flags & 3u)))); + if (((uint8_t)(v_flags & 60u)) != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + self->private_impl.f_block_has_compressed_size = (((uint8_t)(v_flags & 64u)) != 0u); + if (self->private_impl.f_block_has_compressed_size) { + self->private_impl.f_block_compressed_size = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (v_shift <= 56u) { + self->private_impl.f_block_compressed_size |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + self->private_impl.f_block_compressed_size |= (((uint64_t)(1u)) << 63u); + break; + } + } + self->private_impl.f_block_has_uncompressed_size = (((uint8_t)(v_flags & 128u)) != 0u); + if (self->private_impl.f_block_has_uncompressed_size) { + self->private_impl.f_block_uncompressed_size = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (v_shift <= 56u) { + self->private_impl.f_block_uncompressed_size |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + self->private_impl.f_block_uncompressed_size |= (((uint64_t)(1u)) << 63u); + break; + } + } + self->private_impl.f_bcj_x86_prev_mask = 0u; + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_non_final_filters__choosy_default); + v_f = 0u; + while (v_f < self->private_impl.f_num_non_final_filters) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_filter_id = t_3; + } + if (v_filter_id == 33u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); + goto exit; + } else if (v_filter_id == 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + self->private_impl.f_filters[v_f] = ((((uint32_t)(v_c8)) << 8u) | 3u); + v_k = 0u; + while (v_k < 256u) { + self->private_data.f_filter_data[v_f][v_k] = 0u; + v_k += 1u; + } + } else if ((v_filter_id < 3u) || (11u < v_filter_id)) { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter); + goto exit; + } else if (v_f != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter_combination); + goto exit; + } else { + self->private_impl.f_filters[v_f] = ((uint32_t)(v_filter_id)); + if (v_filter_id == 4u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_04_x86); + } else if (v_filter_id == 5u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_05_powerpc); + } else if (v_filter_id == 6u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_06_ia64); + } else if (v_filter_id == 7u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_07_arm); + } else if (v_filter_id == 8u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_08_armthumb); + } else if (v_filter_id == 9u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_09_sparc); + } else if (v_filter_id == 10u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_0a_arm64); + } else { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_0b_riscv); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if (v_c8 == 0u) { + self->private_impl.f_bcj_pos = 0u; + } else if (v_c8 == 4u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + uint32_t t_7; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_7 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_block_header_sans_padding.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_block_header_sans_padding.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; + if (num_bits_7 == 24) { + t_7 = ((uint32_t)(*scratch)); + break; + } + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)) << 56; + } + } + v_c32 = t_7; + } + v_alignment = ((uint32_t)(WUFFS_XZ__BCJ_OFFSET_ALIGNMENT[v_filter_id])); + if (v_alignment > 0u) { + if ((v_c32 % v_alignment) != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_bcj_offset); + goto exit; + } + } + self->private_impl.f_bcj_pos = v_c32; + } else { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter); + goto exit; + } + } + v_f += 1u; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + v_filter_id = t_8; + } + if (v_filter_id == 33u) { + if (self->private_impl.f_lzma_needs_reset) { + wuffs_private_impl__ignore_status(wuffs_lzma__decoder__initialize(&self->private_data.f_lzma, + sizeof (wuffs_lzma__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_9 = *iop_a_src++; + v_c8 = t_9; + } + if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_10 = *iop_a_src++; + v_c8 = t_10; + } + v_status = wuffs_lzma__decoder__set_quirk(&self->private_data.f_lzma, 1348001793u, (2u | (((uint64_t)(v_c8)) << 8u))); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); + goto exit; + } + } else if ((v_filter_id < 3u) || (11u < v_filter_id)) { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter); + goto exit; } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); + goto exit; } - } - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__hasher_u64.vtable_name = - wuffs_base__hasher_u64__vtable_name; - self->private_impl.vtable_for__wuffs_base__hasher_u64.function_pointers = - (const void*)(&wuffs_xxhash64__hasher__func_ptrs_for__wuffs_base__hasher_u64); - return wuffs_base__make_status(NULL); -} - -wuffs_xxhash64__hasher* -wuffs_xxhash64__hasher__alloc(void) { - wuffs_xxhash64__hasher* x = - (wuffs_xxhash64__hasher*)(calloc(sizeof(wuffs_xxhash64__hasher), 1)); - if (!x) { - return NULL; - } - if (wuffs_xxhash64__hasher__initialize( - x, sizeof(wuffs_xxhash64__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + goto ok; + ok: + self->private_impl.p_decode_block_header_sans_padding = 0; + goto exit; } - return x; -} - -size_t -sizeof__wuffs_xxhash64__hasher(void) { - return sizeof(wuffs_xxhash64__hasher); -} -// ---------------- Function Implementations - -// -------- func xxhash64.hasher.get_quirk + goto suspend; + suspend: + self->private_impl.p_decode_block_header_sans_padding = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_block_header_sans_padding.v_flags = v_flags; + self->private_data.s_decode_block_header_sans_padding.v_filter_id = v_filter_id; + self->private_data.s_decode_block_header_sans_padding.v_shift = v_shift; + self->private_data.s_decode_block_header_sans_padding.v_f = v_f; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__get_quirk( - const wuffs_xxhash64__hasher* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return 0u; + return status; } -// -------- func xxhash64.hasher.set_quirk +// -------- func xz.decoder.verify_index WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xxhash64__hasher__set_quirk( - wuffs_xxhash64__hasher* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - return wuffs_base__make_status(wuffs_base__error__unsupported_option); -} +static wuffs_base__status +wuffs_xz__decoder__verify_index( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// -------- func xxhash64.hasher.update + uint8_t v_c8 = 0; + uint32_t v_shift = 0; + uint32_t v_hash = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_xxhash64__hasher__update( - wuffs_xxhash64__hasher* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if ((self->private_impl.f_length_modulo_u64 == 0u) && ! self->private_impl.f_length_overflows_u64) { - self->private_impl.f_v0 = 6983438078262162902u; - self->private_impl.f_v1 = 14029467366897019727u; - self->private_impl.f_v2 = 0u; - self->private_impl.f_v3 = 7046029288634856825u; + uint32_t coro_susp_point = self->private_impl.p_verify_index; + if (coro_susp_point) { + v_shift = self->private_data.s_verify_index.v_shift; } - wuffs_xxhash64__hasher__up(self, a_x); - return wuffs_base__make_empty_struct(); -} + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -// -------- func xxhash64.hasher.update_u64 + if ( ! self->private_impl.f_started_verify_index) { + self->private_impl.f_started_verify_index = true; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_num_index_blocks = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (v_shift <= 56u) { + self->private_impl.f_num_index_blocks |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_num_index_blocks |= (((uint64_t)(1u)) << 63u); + break; + } + if (self->private_impl.f_num_index_blocks != self->private_impl.f_num_actual_blocks) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + } + while (self->private_impl.f_num_index_blocks > 0u) { + self->private_impl.f_num_index_blocks -= 1u; + self->private_impl.f_index_block_compressed_size = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (v_shift <= 56u) { + self->private_impl.f_index_block_compressed_size |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_index_block_compressed_size |= (((uint64_t)(1u)) << 63u); + break; + } + self->private_impl.f_index_block_uncompressed_size = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if (v_shift <= 56u) { + self->private_impl.f_index_block_uncompressed_size |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_index_block_uncompressed_size |= (((uint64_t)(1u)) << 63u); + break; + } + self->private_impl.f_verification_want_total_sizes[0u] += self->private_impl.f_index_block_compressed_size; + v_hash = ((uint32_t)((self->private_impl.f_index_block_compressed_size ^ (self->private_impl.f_index_block_compressed_size >> 32u)))); + v_hash *= 3432918353u; + v_hash = (((uint32_t)(v_hash << 15u)) | (v_hash >> 17u)); + v_hash *= 461845907u; + v_hash ^= self->private_impl.f_verification_want_hashed_sizes[0u]; + v_hash = (((uint32_t)(v_hash << 13u)) | (v_hash >> 19u)); + self->private_impl.f_verification_want_hashed_sizes[0u] = ((uint32_t)(((uint32_t)(v_hash * 5u)) + 3864292196u)); + self->private_impl.f_verification_want_total_sizes[1u] += self->private_impl.f_index_block_uncompressed_size; + v_hash = ((uint32_t)((self->private_impl.f_index_block_uncompressed_size ^ (self->private_impl.f_index_block_uncompressed_size >> 32u)))); + v_hash *= 3432918353u; + v_hash = (((uint32_t)(v_hash << 15u)) | (v_hash >> 17u)); + v_hash *= 461845907u; + v_hash ^= self->private_impl.f_verification_want_hashed_sizes[1u]; + v_hash = (((uint32_t)(v_hash << 13u)) | (v_hash >> 19u)); + self->private_impl.f_verification_want_hashed_sizes[1u] = ((uint32_t)(((uint32_t)(v_hash * 5u)) + 3864292196u)); + } + if ((self->private_impl.f_verification_have_hashed_sizes[0u] != self->private_impl.f_verification_want_hashed_sizes[0u]) || + (self->private_impl.f_verification_have_hashed_sizes[1u] != self->private_impl.f_verification_want_hashed_sizes[1u]) || + (self->private_impl.f_verification_have_total_sizes[0u] != self->private_impl.f_verification_want_total_sizes[0u]) || + (self->private_impl.f_verification_have_total_sizes[1u] != self->private_impl.f_verification_want_total_sizes[1u])) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__update_u64( - wuffs_xxhash64__hasher* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return 0; + goto ok; + ok: + self->private_impl.p_verify_index = 0; + goto exit; } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; + + goto suspend; + suspend: + self->private_impl.p_verify_index = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_verify_index.v_shift = v_shift; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - wuffs_xxhash64__hasher__update(self, a_x); - return wuffs_xxhash64__hasher__checksum_u64(self); + return status; } -// -------- func xxhash64.hasher.up +// -------- func xz.decoder.verify_footer WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_xxhash64__hasher__up( - wuffs_xxhash64__hasher* self, - wuffs_base__slice_u8 a_x) { - uint64_t v_new_lmu = 0; - uint64_t v_buf_u64 = 0; - uint32_t v_buf_len = 0; - uint64_t v_v0 = 0; - uint64_t v_v1 = 0; - uint64_t v_v2 = 0; - uint64_t v_v3 = 0; - wuffs_base__slice_u8 v_p = {0}; +static wuffs_base__status +wuffs_xz__decoder__verify_footer( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - v_new_lmu = ((uint64_t)(self->private_impl.f_length_modulo_u64 + ((uint64_t)(a_x.len)))); - self->private_impl.f_length_overflows_u64 = ((v_new_lmu < self->private_impl.f_length_modulo_u64) || self->private_impl.f_length_overflows_u64); - self->private_impl.f_length_modulo_u64 = v_new_lmu; - while (true) { - if (self->private_impl.f_buf_len >= 32u) { - v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[0u])) | - (((uint64_t)(self->private_impl.f_buf_data[1u])) << 8u) | - (((uint64_t)(self->private_impl.f_buf_data[2u])) << 16u) | - (((uint64_t)(self->private_impl.f_buf_data[3u])) << 24u) | - (((uint64_t)(self->private_impl.f_buf_data[4u])) << 32u) | - (((uint64_t)(self->private_impl.f_buf_data[5u])) << 40u) | - (((uint64_t)(self->private_impl.f_buf_data[6u])) << 48u) | - (((uint64_t)(self->private_impl.f_buf_data[7u])) << 56u)); - v_v0 = ((uint64_t)(self->private_impl.f_v0 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); - v_v0 = (((uint64_t)(v_v0 << 31u)) | (v_v0 >> 33u)); - self->private_impl.f_v0 = ((uint64_t)(v_v0 * 11400714785074694791u)); - v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[8u])) | - (((uint64_t)(self->private_impl.f_buf_data[9u])) << 8u) | - (((uint64_t)(self->private_impl.f_buf_data[10u])) << 16u) | - (((uint64_t)(self->private_impl.f_buf_data[11u])) << 24u) | - (((uint64_t)(self->private_impl.f_buf_data[12u])) << 32u) | - (((uint64_t)(self->private_impl.f_buf_data[13u])) << 40u) | - (((uint64_t)(self->private_impl.f_buf_data[14u])) << 48u) | - (((uint64_t)(self->private_impl.f_buf_data[15u])) << 56u)); - v_v1 = ((uint64_t)(self->private_impl.f_v1 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); - v_v1 = (((uint64_t)(v_v1 << 31u)) | (v_v1 >> 33u)); - self->private_impl.f_v1 = ((uint64_t)(v_v1 * 11400714785074694791u)); - v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[16u])) | - (((uint64_t)(self->private_impl.f_buf_data[17u])) << 8u) | - (((uint64_t)(self->private_impl.f_buf_data[18u])) << 16u) | - (((uint64_t)(self->private_impl.f_buf_data[19u])) << 24u) | - (((uint64_t)(self->private_impl.f_buf_data[20u])) << 32u) | - (((uint64_t)(self->private_impl.f_buf_data[21u])) << 40u) | - (((uint64_t)(self->private_impl.f_buf_data[22u])) << 48u) | - (((uint64_t)(self->private_impl.f_buf_data[23u])) << 56u)); - v_v2 = ((uint64_t)(self->private_impl.f_v2 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); - v_v2 = (((uint64_t)(v_v2 << 31u)) | (v_v2 >> 33u)); - self->private_impl.f_v2 = ((uint64_t)(v_v2 * 11400714785074694791u)); - v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[24u])) | - (((uint64_t)(self->private_impl.f_buf_data[25u])) << 8u) | - (((uint64_t)(self->private_impl.f_buf_data[26u])) << 16u) | - (((uint64_t)(self->private_impl.f_buf_data[27u])) << 24u) | - (((uint64_t)(self->private_impl.f_buf_data[28u])) << 32u) | - (((uint64_t)(self->private_impl.f_buf_data[29u])) << 40u) | - (((uint64_t)(self->private_impl.f_buf_data[30u])) << 48u) | - (((uint64_t)(self->private_impl.f_buf_data[31u])) << 56u)); - v_v3 = ((uint64_t)(self->private_impl.f_v3 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); - v_v3 = (((uint64_t)(v_v3 << 31u)) | (v_v3 >> 33u)); - self->private_impl.f_v3 = ((uint64_t)(v_v3 * 11400714785074694791u)); - self->private_impl.f_buf_len = 0u; - break; + uint32_t v_c32 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_verify_footer; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_verify_footer.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_verify_footer.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_c32 = t_0; } - if (((uint64_t)(a_x.len)) <= 0u) { - return wuffs_base__make_empty_struct(); + if (v_c32 != ((uint32_t)(self->private_impl.f_backwards_size))) { + status = wuffs_base__make_status(wuffs_xz__error__bad_footer); + goto exit; } - self->private_impl.f_buf_data[self->private_impl.f_buf_len] = a_x.ptr[0u]; - self->private_impl.f_buf_len += 1u; - a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); - } - v_buf_len = (self->private_impl.f_buf_len & 31u); - v_v0 = self->private_impl.f_v0; - v_v1 = self->private_impl.f_v1; - v_v2 = self->private_impl.f_v2; - v_v3 = self->private_impl.f_v3; - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 32; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32); - while (v_p.ptr < i_end0_p) { - v_buf_u64 = (((uint64_t)(v_p.ptr[0u])) | - (((uint64_t)(v_p.ptr[1u])) << 8u) | - (((uint64_t)(v_p.ptr[2u])) << 16u) | - (((uint64_t)(v_p.ptr[3u])) << 24u) | - (((uint64_t)(v_p.ptr[4u])) << 32u) | - (((uint64_t)(v_p.ptr[5u])) << 40u) | - (((uint64_t)(v_p.ptr[6u])) << 48u) | - (((uint64_t)(v_p.ptr[7u])) << 56u)); - v_v0 = ((uint64_t)(v_v0 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); - v_v0 = (((uint64_t)(v_v0 << 31u)) | (v_v0 >> 33u)); - v_v0 = ((uint64_t)(v_v0 * 11400714785074694791u)); - v_buf_u64 = (((uint64_t)(v_p.ptr[8u])) | - (((uint64_t)(v_p.ptr[9u])) << 8u) | - (((uint64_t)(v_p.ptr[10u])) << 16u) | - (((uint64_t)(v_p.ptr[11u])) << 24u) | - (((uint64_t)(v_p.ptr[12u])) << 32u) | - (((uint64_t)(v_p.ptr[13u])) << 40u) | - (((uint64_t)(v_p.ptr[14u])) << 48u) | - (((uint64_t)(v_p.ptr[15u])) << 56u)); - v_v1 = ((uint64_t)(v_v1 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); - v_v1 = (((uint64_t)(v_v1 << 31u)) | (v_v1 >> 33u)); - v_v1 = ((uint64_t)(v_v1 * 11400714785074694791u)); - v_buf_u64 = (((uint64_t)(v_p.ptr[16u])) | - (((uint64_t)(v_p.ptr[17u])) << 8u) | - (((uint64_t)(v_p.ptr[18u])) << 16u) | - (((uint64_t)(v_p.ptr[19u])) << 24u) | - (((uint64_t)(v_p.ptr[20u])) << 32u) | - (((uint64_t)(v_p.ptr[21u])) << 40u) | - (((uint64_t)(v_p.ptr[22u])) << 48u) | - (((uint64_t)(v_p.ptr[23u])) << 56u)); - v_v2 = ((uint64_t)(v_v2 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); - v_v2 = (((uint64_t)(v_v2 << 31u)) | (v_v2 >> 33u)); - v_v2 = ((uint64_t)(v_v2 * 11400714785074694791u)); - v_buf_u64 = (((uint64_t)(v_p.ptr[24u])) | - (((uint64_t)(v_p.ptr[25u])) << 8u) | - (((uint64_t)(v_p.ptr[26u])) << 16u) | - (((uint64_t)(v_p.ptr[27u])) << 24u) | - (((uint64_t)(v_p.ptr[28u])) << 32u) | - (((uint64_t)(v_p.ptr[29u])) << 40u) | - (((uint64_t)(v_p.ptr[30u])) << 48u) | - (((uint64_t)(v_p.ptr[31u])) << 56u)); - v_v3 = ((uint64_t)(v_v3 + ((uint64_t)(v_buf_u64 * 14029467366897019727u)))); - v_v3 = (((uint64_t)(v_v3 << 31u)) | (v_v3 >> 33u)); - v_v3 = ((uint64_t)(v_v3 * 11400714785074694791u)); - v_p.ptr += 32; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_1 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_verify_footer.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_verify_footer.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 8) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_c32 = t_1; } - v_p.len = 1; - uint8_t* i_end1_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end1_p) { - self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; - v_buf_len = ((v_buf_len + 1u) & 31u); - v_p.ptr += 1; + if (v_c32 != ((uint32_t)(self->private_impl.f_flags))) { + status = wuffs_base__make_status(wuffs_xz__error__bad_footer); + goto exit; } - v_p.len = 0; - } - self->private_impl.f_buf_len = v_buf_len; - self->private_impl.f_v0 = v_v0; - self->private_impl.f_v1 = v_v1; - self->private_impl.f_v2 = v_v2; - self->private_impl.f_v3 = v_v3; - return wuffs_base__make_empty_struct(); -} - -// -------- func xxhash64.hasher.checksum_u64 -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__checksum_u64( - const wuffs_xxhash64__hasher* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + goto ok; + ok: + self->private_impl.p_verify_footer = 0; + goto exit; } - uint64_t v_ret = 0; - uint64_t v_v0 = 0; - uint64_t v_v1 = 0; - uint64_t v_v2 = 0; - uint64_t v_v3 = 0; - uint32_t v_i = 0; - uint32_t v_i8 = 0; - uint32_t v_n = 0; - uint32_t v_buf_u32 = 0; - uint64_t v_buf_u64 = 0; + goto suspend; + suspend: + self->private_impl.p_verify_footer = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - if ((self->private_impl.f_length_modulo_u64 >= 32u) || self->private_impl.f_length_overflows_u64) { - v_ret += (((uint64_t)(self->private_impl.f_v0 << 1u)) | (self->private_impl.f_v0 >> 63u)); - v_ret += (((uint64_t)(self->private_impl.f_v1 << 7u)) | (self->private_impl.f_v1 >> 57u)); - v_ret += (((uint64_t)(self->private_impl.f_v2 << 12u)) | (self->private_impl.f_v2 >> 52u)); - v_ret += (((uint64_t)(self->private_impl.f_v3 << 18u)) | (self->private_impl.f_v3 >> 46u)); - v_v0 = ((uint64_t)(self->private_impl.f_v0 * 14029467366897019727u)); - v_v0 = (((uint64_t)(v_v0 << 31u)) | (v_v0 >> 33u)); - v_v0 *= 11400714785074694791u; - v_v1 = ((uint64_t)(self->private_impl.f_v1 * 14029467366897019727u)); - v_v1 = (((uint64_t)(v_v1 << 31u)) | (v_v1 >> 33u)); - v_v1 *= 11400714785074694791u; - v_v2 = ((uint64_t)(self->private_impl.f_v2 * 14029467366897019727u)); - v_v2 = (((uint64_t)(v_v2 << 31u)) | (v_v2 >> 33u)); - v_v2 *= 11400714785074694791u; - v_v3 = ((uint64_t)(self->private_impl.f_v3 * 14029467366897019727u)); - v_v3 = (((uint64_t)(v_v3 << 31u)) | (v_v3 >> 33u)); - v_v3 *= 11400714785074694791u; - v_ret = ((uint64_t)(((uint64_t)((v_ret ^ v_v0) * 11400714785074694791u)) + 9650029242287828579u)); - v_ret = ((uint64_t)(((uint64_t)((v_ret ^ v_v1) * 11400714785074694791u)) + 9650029242287828579u)); - v_ret = ((uint64_t)(((uint64_t)((v_ret ^ v_v2) * 11400714785074694791u)) + 9650029242287828579u)); - v_ret = ((uint64_t)(((uint64_t)((v_ret ^ v_v3) * 11400714785074694791u)) + 9650029242287828579u)); - v_ret += self->private_impl.f_length_modulo_u64; - } else { - v_ret += 2870177450012600261u; - v_ret += self->private_impl.f_length_modulo_u64; - } - v_n = 32u; - v_n = wuffs_base__u32__min(v_n, self->private_impl.f_buf_len); - if (8u <= v_n) { - v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[0u])) | - (((uint64_t)(self->private_impl.f_buf_data[1u])) << 8u) | - (((uint64_t)(self->private_impl.f_buf_data[2u])) << 16u) | - (((uint64_t)(self->private_impl.f_buf_data[3u])) << 24u) | - (((uint64_t)(self->private_impl.f_buf_data[4u])) << 32u) | - (((uint64_t)(self->private_impl.f_buf_data[5u])) << 40u) | - (((uint64_t)(self->private_impl.f_buf_data[6u])) << 48u) | - (((uint64_t)(self->private_impl.f_buf_data[7u])) << 56u)); - v_buf_u64 *= 14029467366897019727u; - v_buf_u64 = (((uint64_t)(v_buf_u64 << 31u)) | (v_buf_u64 >> 33u)); - v_buf_u64 *= 11400714785074694791u; - v_ret ^= v_buf_u64; - v_ret = (((uint64_t)(v_ret << 27u)) | (v_ret >> 37u)); - v_ret *= 11400714785074694791u; - v_ret += 9650029242287828579u; - v_i = 8u; - } - if (16u <= v_n) { - v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[8u])) | - (((uint64_t)(self->private_impl.f_buf_data[9u])) << 8u) | - (((uint64_t)(self->private_impl.f_buf_data[10u])) << 16u) | - (((uint64_t)(self->private_impl.f_buf_data[11u])) << 24u) | - (((uint64_t)(self->private_impl.f_buf_data[12u])) << 32u) | - (((uint64_t)(self->private_impl.f_buf_data[13u])) << 40u) | - (((uint64_t)(self->private_impl.f_buf_data[14u])) << 48u) | - (((uint64_t)(self->private_impl.f_buf_data[15u])) << 56u)); - v_buf_u64 *= 14029467366897019727u; - v_buf_u64 = (((uint64_t)(v_buf_u64 << 31u)) | (v_buf_u64 >> 33u)); - v_buf_u64 *= 11400714785074694791u; - v_ret ^= v_buf_u64; - v_ret = (((uint64_t)(v_ret << 27u)) | (v_ret >> 37u)); - v_ret *= 11400714785074694791u; - v_ret += 9650029242287828579u; - v_i = 16u; - } - if (24u <= v_n) { - v_buf_u64 = (((uint64_t)(self->private_impl.f_buf_data[16u])) | - (((uint64_t)(self->private_impl.f_buf_data[17u])) << 8u) | - (((uint64_t)(self->private_impl.f_buf_data[18u])) << 16u) | - (((uint64_t)(self->private_impl.f_buf_data[19u])) << 24u) | - (((uint64_t)(self->private_impl.f_buf_data[20u])) << 32u) | - (((uint64_t)(self->private_impl.f_buf_data[21u])) << 40u) | - (((uint64_t)(self->private_impl.f_buf_data[22u])) << 48u) | - (((uint64_t)(self->private_impl.f_buf_data[23u])) << 56u)); - v_buf_u64 *= 14029467366897019727u; - v_buf_u64 = (((uint64_t)(v_buf_u64 << 31u)) | (v_buf_u64 >> 33u)); - v_buf_u64 *= 11400714785074694791u; - v_ret ^= v_buf_u64; - v_ret = (((uint64_t)(v_ret << 27u)) | (v_ret >> 37u)); - v_ret *= 11400714785074694791u; - v_ret += 9650029242287828579u; - v_i = 24u; - } - if ((v_n & 4u) != 0u) { - v_i8 = (v_i & 24u); - v_buf_u32 = (((uint32_t)(self->private_impl.f_buf_data[(v_i8 + 0u)])) | - (((uint32_t)(self->private_impl.f_buf_data[(v_i8 + 1u)])) << 8u) | - (((uint32_t)(self->private_impl.f_buf_data[(v_i8 + 2u)])) << 16u) | - (((uint32_t)(self->private_impl.f_buf_data[(v_i8 + 3u)])) << 24u)); - v_ret ^= ((uint64_t)(((uint64_t)(v_buf_u32)) * 11400714785074694791u)); - v_ret = (((uint64_t)(v_ret << 23u)) | (v_ret >> 41u)); - v_ret *= 14029467366897019727u; - v_ret += 1609587929392839161u; - v_i = (v_i8 + 4u); - } - while (v_i < v_n) { - v_ret ^= ((uint64_t)(((uint64_t)(self->private_impl.f_buf_data[v_i])) * 2870177450012600261u)); - v_ret = (((uint64_t)(v_ret << 11u)) | (v_ret >> 53u)); - v_ret *= 11400714785074694791u; - v_i += 1u; + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_ret ^= (v_ret >> 33u); - v_ret *= 14029467366897019727u; - v_ret ^= (v_ret >> 29u); - v_ret *= 1609587929392839161u; - v_ret ^= (v_ret >> 32u); - return ((uint64_t)(v_ret)); + + return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XZ) #if defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -62309,16 +78871,12 @@ DynIOBuffer::DynIOBuffer(uint64_t max_incl) : m_buf(wuffs_base__empty_io_buffer()), m_max_incl(max_incl) {} DynIOBuffer::~DynIOBuffer() { - if (m_buf.data.ptr) { - free(m_buf.data.ptr); - } + free(m_buf.data.ptr); } void // DynIOBuffer::drop() { - if (m_buf.data.ptr) { - free(m_buf.data.ptr); - } + free(m_buf.data.ptr); m_buf = wuffs_base__empty_io_buffer(); } @@ -62329,13 +78887,16 @@ DynIOBuffer::grow(uint64_t min_incl) { return ((min_incl == 0) && (m_max_incl == 0)) ? DynIOBuffer::GrowResult::OK : DynIOBuffer::GrowResult::FailedMaxInclExceeded; + } else if (n > SIZE_MAX) { + return DynIOBuffer::GrowResult::FailedOutOfMemory; } else if (n > m_buf.data.len) { - uint8_t* ptr = static_cast(realloc(m_buf.data.ptr, n)); + uint8_t* ptr = + static_cast(realloc(m_buf.data.ptr, static_cast(n))); if (!ptr) { return DynIOBuffer::GrowResult::FailedOutOfMemory; } m_buf.data.ptr = ptr; - m_buf.data.len = n; + m_buf.data.len = static_cast(n); } return DynIOBuffer::GrowResult::OK; } @@ -62382,7 +78943,7 @@ Input::BringsItsOwnIOBuffer() { FileInput::FileInput(FILE* f) : m_f(f) {} std::string // -FileInput::CopyIn(IOBuffer* dst, uint64_t history_retain_length) { +FileInput::CopyIn(IOBuffer* dst) { if (!m_f) { return "wuffs_aux::sync_io::FileInput: nullptr file"; } else if (!dst) { @@ -62390,7 +78951,7 @@ FileInput::CopyIn(IOBuffer* dst, uint64_t history_retain_length) { } else if (dst->meta.closed) { return "wuffs_aux::sync_io::FileInput: end of file"; } else { - dst->compact_retaining(history_retain_length); + dst->compact(); size_t n = fread(dst->writer_pointer(), 1, dst->writer_length(), m_f); dst->meta.wi += n; dst->meta.closed = feof(m_f); @@ -62418,7 +78979,7 @@ MemoryInput::BringsItsOwnIOBuffer() { } std::string // -MemoryInput::CopyIn(IOBuffer* dst, uint64_t history_retain_length) { +MemoryInput::CopyIn(IOBuffer* dst) { if (!dst) { return "wuffs_aux::sync_io::MemoryInput: nullptr IOBuffer"; } else if (dst->meta.closed) { @@ -62428,7 +78989,7 @@ MemoryInput::CopyIn(IOBuffer* dst, uint64_t history_retain_length) { // to it. return "wuffs_aux::sync_io::MemoryInput: overlapping buffers"; } else { - dst->compact_retaining(history_retain_length); + dst->compact(); size_t nd = dst->writer_length(); size_t ns = m_io.reader_length(); size_t n = (nd < ns) ? nd : ns; @@ -62483,7 +79044,7 @@ AdvanceIOBufferTo(const ErrorMessages& error_messages, if (!input.BringsItsOwnIOBuffer()) { io_buf.compact(); } - std::string error_message = input.CopyIn(&io_buf, 0); + std::string error_message = input.CopyIn(&io_buf); if (!error_message.empty()) { return error_message; } @@ -62566,7 +79127,7 @@ HandleMetadata( } else if (!input.BringsItsOwnIOBuffer()) { io_buf.compact(); } - std::string error_message = input.CopyIn(&io_buf, 0); + std::string error_message = input.CopyIn(&io_buf); if (!error_message.empty()) { return error_message; } @@ -62627,15 +79188,13 @@ DecodeCborCallbacks::Done(DecodeCborResult& result, sync_io::Input& input, IOBuffer& buffer) {} -DecodeCborArgQuirks::DecodeCborArgQuirks(wuffs_base__slice_u32 repr0) - : repr(repr0) {} - -DecodeCborArgQuirks::DecodeCborArgQuirks(uint32_t* ptr0, size_t len0) - : repr(wuffs_base__make_slice_u32(ptr0, len0)) {} +DecodeCborArgQuirks::DecodeCborArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0) + : ptr(ptr0), len(len0) {} DecodeCborArgQuirks // DecodeCborArgQuirks::DefaultValue() { - return DecodeCborArgQuirks(wuffs_base__empty_slice_u32()); + return DecodeCborArgQuirks(nullptr, 0); } DecodeCborResult // @@ -62664,8 +79223,8 @@ DecodeCbor(DecodeCborCallbacks& callbacks, ret_error_message = "wuffs_aux::DecodeCbor: out of memory"; goto done; } - for (size_t i = 0; i < quirks.repr.len; i++) { - dec->set_quirk(quirks.repr.ptr[i], 1); + for (size_t i = 0; i < quirks.len; i++) { + dec->set_quirk(quirks.ptr[i].first, quirks.ptr[i].second); } // Prepare the wuffs_base__tok_buffer. 256 tokens is 2KiB. @@ -62710,14 +79269,14 @@ DecodeCbor(DecodeCborCallbacks& callbacks, "wuffs_aux::DecodeCbor: internal error: io_buf is closed"; goto done; } - io_buf->compact_retaining(dec->history_retain_length()); + io_buf->compact(); if (io_buf->meta.wi >= io_buf->data.len) { ret_error_message = "wuffs_aux::DecodeCbor: internal error: io_buf is full"; goto done; } cursor_index = io_buf->meta.ri; - io_error_message = input.CopyIn(io_buf, dec->history_retain_length()); + io_error_message = input.CopyIn(io_buf); } else { ret_error_message = tok_status.message(); goto done; @@ -62796,7 +79355,7 @@ DecodeCbor(DecodeCborCallbacks& callbacks, goto done; } depth++; - if (depth > WUFFS_CBOR__DECODER_DEPTH_MAX_INCL) { + if (depth > (int32_t)WUFFS_CBOR__DECODER_DEPTH_MAX_INCL) { ret_error_message = "wuffs_aux::DecodeCbor: internal error: bad depth"; goto done; @@ -63052,6 +79611,11 @@ DecodeImageCallbacks::SelectDecoder(uint32_t fourcc, } #endif +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) + case WUFFS_BASE__FOURCC__QOI: + return wuffs_qoi__decoder::alloc_as__wuffs_base__image_decoder(); +#endif + #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) case WUFFS_BASE__FOURCC__TGA: return wuffs_tga__decoder::alloc_as__wuffs_base__image_decoder(); @@ -63061,6 +79625,11 @@ DecodeImageCallbacks::SelectDecoder(uint32_t fourcc, case WUFFS_BASE__FOURCC__WBMP: return wuffs_wbmp__decoder::alloc_as__wuffs_base__image_decoder(); #endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) + case WUFFS_BASE__FOURCC__WEBP: + return wuffs_webp__decoder::alloc_as__wuffs_base__image_decoder(); +#endif } return wuffs_base__image_decoder::unique_ptr(nullptr); @@ -63091,7 +79660,7 @@ DecodeImageCallbacks::AllocPixbuf(const wuffs_base__image_config& image_config, return AllocPixbufResult(DecodeImage_UnsupportedPixelConfiguration); } void* ptr = - allow_uninitialized_memory ? malloc((size_t)len) : calloc((size_t)len, 1); + allow_uninitialized_memory ? malloc((size_t)len) : calloc(1, (size_t)len); if (!ptr) { return AllocPixbufResult(DecodeImage_OutOfMemory); } @@ -63116,7 +79685,7 @@ DecodeImageCallbacks::AllocWorkbuf(wuffs_base__range_ii_u64 len_range, return AllocWorkbufResult(DecodeImage_OutOfMemory); } void* ptr = - allow_uninitialized_memory ? malloc((size_t)len) : calloc((size_t)len, 1); + allow_uninitialized_memory ? malloc((size_t)len) : calloc(1, (size_t)len); if (!ptr) { return AllocWorkbufResult(DecodeImage_OutOfMemory); } @@ -63153,15 +79722,13 @@ const char DecodeImage_UnsupportedPixelConfiguration[] = // const char DecodeImage_UnsupportedPixelFormat[] = // "wuffs_aux::DecodeImage: unsupported pixel format"; -DecodeImageArgQuirks::DecodeImageArgQuirks(wuffs_base__slice_u32 repr0) - : repr(repr0) {} - -DecodeImageArgQuirks::DecodeImageArgQuirks(uint32_t* ptr0, size_t len0) - : repr(wuffs_base__make_slice_u32(ptr0, len0)) {} +DecodeImageArgQuirks::DecodeImageArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0) + : ptr(ptr0), len(len0) {} DecodeImageArgQuirks // DecodeImageArgQuirks::DefaultValue() { - return DecodeImageArgQuirks(wuffs_base__empty_slice_u32()); + return DecodeImageArgQuirks(nullptr, 0); } DecodeImageArgFlags::DecodeImageArgFlags(uint64_t repr0) : repr(repr0) {} @@ -63259,7 +79826,8 @@ DecodeImage0(wuffs_base__image_decoder::unique_ptr& image_decoder, DecodeImageCallbacks& callbacks, sync_io::Input& input, wuffs_base__io_buffer& io_buf, - wuffs_base__slice_u32 quirks, + const QuirkKeyValuePair* quirks_ptr, + const size_t quirks_len, uint64_t flags, wuffs_base__pixel_blend pixel_blend, wuffs_base__color_u32_argb_premul background_color, @@ -63301,7 +79869,7 @@ redirect: fourcc = 0; break; } - std::string error_message = input.CopyIn(&io_buf, 0); + std::string error_message = input.CopyIn(&io_buf); if (!error_message.empty()) { return DecodeImageResult(std::move(error_message)); } @@ -63342,8 +79910,8 @@ redirect: } // Apply quirks. - for (size_t i = 0; i < quirks.len; i++) { - image_decoder->set_quirk(quirks.ptr[i], 1); + for (size_t i = 0; i < quirks_len; i++) { + image_decoder->set_quirk(quirks_ptr[i].first, quirks_ptr[i].second); } // Apply flags. @@ -63397,8 +79965,7 @@ redirect: } else if (io_buf.meta.closed) { return DecodeImageResult(DecodeImage_UnexpectedEndOfFile); } else { - std::string error_message = - input.CopyIn(&io_buf, image_decoder->history_retain_length()); + std::string error_message = input.CopyIn(&io_buf); if (!error_message.empty()) { return DecodeImageResult(std::move(error_message)); } @@ -63480,8 +80047,7 @@ redirect: } else if (io_buf.meta.closed) { return DecodeImageResult(DecodeImage_UnexpectedEndOfFile); } else { - std::string error_message = - input.CopyIn(&io_buf, image_decoder->history_retain_length()); + std::string error_message = input.CopyIn(&io_buf); if (!error_message.empty()) { return DecodeImageResult(std::move(error_message)); } @@ -63510,8 +80076,7 @@ redirect: message = DecodeImage_UnexpectedEndOfFile; break; } else { - std::string error_message = - input.CopyIn(&io_buf, image_decoder->history_retain_length()); + std::string error_message = input.CopyIn(&io_buf); if (!error_message.empty()) { message = std::move(error_message); break; @@ -63539,8 +80104,7 @@ redirect: } else if (io_buf.meta.closed) { return DecodeImageResult(DecodeImage_UnexpectedEndOfFile); } else { - std::string error_message = - input.CopyIn(&io_buf, image_decoder->history_retain_length()); + std::string error_message = input.CopyIn(&io_buf); if (!error_message.empty()) { return DecodeImageResult(std::move(error_message)); } @@ -63574,10 +80138,10 @@ DecodeImage(DecodeImageCallbacks& callbacks, } wuffs_base__image_decoder::unique_ptr image_decoder(nullptr); - DecodeImageResult result = - DecodeImage0(image_decoder, callbacks, input, *io_buf, quirks.repr, - flags.repr, pixel_blend.repr, background_color.repr, - max_incl_dimension.repr, max_incl_metadata_length.repr); + DecodeImageResult result = DecodeImage0( + image_decoder, callbacks, input, *io_buf, quirks.ptr, quirks.len, + flags.repr, pixel_blend.repr, background_color.repr, + max_incl_dimension.repr, max_incl_metadata_length.repr); callbacks.Done(result, input, *io_buf, std::move(image_decoder)); return result; } @@ -63612,15 +80176,13 @@ const char DecodeJson_BadJsonPointer[] = // const char DecodeJson_NoMatch[] = // "wuffs_aux::DecodeJson: no match"; -DecodeJsonArgQuirks::DecodeJsonArgQuirks(wuffs_base__slice_u32 repr0) - : repr(repr0) {} - -DecodeJsonArgQuirks::DecodeJsonArgQuirks(uint32_t* ptr0, size_t len0) - : repr(wuffs_base__make_slice_u32(ptr0, len0)) {} +DecodeJsonArgQuirks::DecodeJsonArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0) + : ptr(ptr0), len(len0) {} DecodeJsonArgQuirks // DecodeJsonArgQuirks::DefaultValue() { - return DecodeJsonArgQuirks(wuffs_base__empty_slice_u32()); + return DecodeJsonArgQuirks(nullptr, 0); } DecodeJsonArgJsonPointer::DecodeJsonArgJsonPointer(std::string repr0) @@ -63633,58 +80195,58 @@ DecodeJsonArgJsonPointer::DefaultValue() { // -------- -#define WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN \ - while (tok_buf.meta.ri >= tok_buf.meta.wi) { \ - if (tok_status.repr == nullptr) { \ - goto done; \ - } else if (tok_status.repr == wuffs_base__suspension__short_write) { \ - tok_buf.compact(); \ - } else if (tok_status.repr == wuffs_base__suspension__short_read) { \ - if (!io_error_message.empty()) { \ - ret_error_message = std::move(io_error_message); \ - goto done; \ - } else if (cursor_index != io_buf->meta.ri) { \ - ret_error_message = \ - "wuffs_aux::DecodeJson: internal error: bad cursor_index"; \ - goto done; \ - } else if (io_buf->meta.closed) { \ - ret_error_message = \ - "wuffs_aux::DecodeJson: internal error: io_buf is closed"; \ - goto done; \ - } \ - io_buf->compact_retaining(dec->history_retain_length()); \ - if (io_buf->meta.wi >= io_buf->data.len) { \ - ret_error_message = \ - "wuffs_aux::DecodeJson: internal error: io_buf is full"; \ - goto done; \ - } \ - cursor_index = io_buf->meta.ri; \ - io_error_message = input.CopyIn(io_buf, dec->history_retain_length()); \ - } else { \ - ret_error_message = tok_status.message(); \ - goto done; \ - } \ - tok_status = \ - dec->decode_tokens(&tok_buf, io_buf, wuffs_base__empty_slice_u8()); \ - if ((tok_buf.meta.ri > tok_buf.meta.wi) || \ - (tok_buf.meta.wi > tok_buf.data.len) || \ - (io_buf->meta.ri > io_buf->meta.wi) || \ - (io_buf->meta.wi > io_buf->data.len)) { \ - ret_error_message = \ - "wuffs_aux::DecodeJson: internal error: bad buffer indexes"; \ - goto done; \ - } \ - } \ - wuffs_base__token token = tok_buf.data.ptr[tok_buf.meta.ri++]; \ - uint64_t token_len = token.length(); \ - if ((io_buf->meta.ri < cursor_index) || \ - ((io_buf->meta.ri - cursor_index) < token_len)) { \ - ret_error_message = \ - "wuffs_aux::DecodeJson: internal error: bad token indexes"; \ - goto done; \ - } \ - uint8_t* token_ptr = io_buf->data.ptr + cursor_index; \ - (void)(token_ptr); \ +#define WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN \ + while (tok_buf.meta.ri >= tok_buf.meta.wi) { \ + if (tok_status.repr == nullptr) { \ + goto done; \ + } else if (tok_status.repr == wuffs_base__suspension__short_write) { \ + tok_buf.compact(); \ + } else if (tok_status.repr == wuffs_base__suspension__short_read) { \ + if (!io_error_message.empty()) { \ + ret_error_message = std::move(io_error_message); \ + goto done; \ + } else if (cursor_index != io_buf->meta.ri) { \ + ret_error_message = \ + "wuffs_aux::DecodeJson: internal error: bad cursor_index"; \ + goto done; \ + } else if (io_buf->meta.closed) { \ + ret_error_message = \ + "wuffs_aux::DecodeJson: internal error: io_buf is closed"; \ + goto done; \ + } \ + io_buf->compact(); \ + if (io_buf->meta.wi >= io_buf->data.len) { \ + ret_error_message = \ + "wuffs_aux::DecodeJson: internal error: io_buf is full"; \ + goto done; \ + } \ + cursor_index = io_buf->meta.ri; \ + io_error_message = input.CopyIn(io_buf); \ + } else { \ + ret_error_message = tok_status.message(); \ + goto done; \ + } \ + tok_status = \ + dec->decode_tokens(&tok_buf, io_buf, wuffs_base__empty_slice_u8()); \ + if ((tok_buf.meta.ri > tok_buf.meta.wi) || \ + (tok_buf.meta.wi > tok_buf.data.len) || \ + (io_buf->meta.ri > io_buf->meta.wi) || \ + (io_buf->meta.wi > io_buf->data.len)) { \ + ret_error_message = \ + "wuffs_aux::DecodeJson: internal error: bad buffer indexes"; \ + goto done; \ + } \ + } \ + wuffs_base__token token = tok_buf.data.ptr[tok_buf.meta.ri++]; \ + uint64_t token_len = token.length(); \ + if ((io_buf->meta.ri < cursor_index) || \ + ((io_buf->meta.ri - cursor_index) < token_len)) { \ + ret_error_message = \ + "wuffs_aux::DecodeJson: internal error: bad token indexes"; \ + goto done; \ + } \ + uint8_t* token_ptr = io_buf->data.ptr + cursor_index; \ + (void)(token_ptr); \ cursor_index += static_cast(token_len) // -------- @@ -63965,11 +80527,11 @@ DecodeJson(DecodeJsonCallbacks& callbacks, goto done; } bool allow_tilde_n_tilde_r_tilde_t = false; - for (size_t i = 0; i < quirks.repr.len; i++) { - dec->set_quirk(quirks.repr.ptr[i], 1); - if (quirks.repr.ptr[i] == + for (size_t i = 0; i < quirks.len; i++) { + dec->set_quirk(quirks.ptr[i].first, quirks.ptr[i].second); + if (quirks.ptr[i].first == WUFFS_JSON__QUIRK_JSON_POINTER_ALLOW_TILDE_N_TILDE_R_TILDE_T) { - allow_tilde_n_tilde_r_tilde_t = true; + allow_tilde_n_tilde_r_tilde_t = (quirks.ptr[i].second != 0); } } @@ -64025,7 +80587,7 @@ DecodeJson(DecodeJsonCallbacks& callbacks, goto done; } depth++; - if (depth > WUFFS_JSON__DECODER_DEPTH_MAX_INCL) { + if (depth > (int32_t)WUFFS_JSON__DECODER_DEPTH_MAX_INCL) { ret_error_message = "wuffs_aux::DecodeJson: internal error: bad depth"; goto done; -- cgit v1.2.3