diff options
Diffstat (limited to 'util/cbfstool/lzma/minilzma.cc')
-rw-r--r-- | util/cbfstool/lzma/minilzma.cc | 318 |
1 files changed, 0 insertions, 318 deletions
diff --git a/util/cbfstool/lzma/minilzma.cc b/util/cbfstool/lzma/minilzma.cc deleted file mode 100644 index e621dcc986..0000000000 --- a/util/cbfstool/lzma/minilzma.cc +++ /dev/null @@ -1,318 +0,0 @@ -/* - * minimal lzma implementation - * - * Copyright (C) 2002 Eric Biederman - * Copyright (C) 2005 Joel Yliluoma - * Copyright (C) 2007 coresystems GmbH - * (Adapted by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH) - * Copyright (C) 2007 Patrick Georgi <patrick@georgi-clan.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA - */ - -#include "C/Common/MyInitGuid.h" -#include "C/7zip/Compress/LZMA/LZMAEncoder.h" - -#include <sys/types.h> -#include <sys/stat.h> -#include <unistd.h> -#include <errno.h> -#include <cstring> -#include <cstdio> -#include <cstdlib> -#include <cctype> - -#include <vector> -#include <algorithm> -#include <stdint.h> - -const std::vector<unsigned char> LZMACompress - (const std::vector<unsigned char>& buf); - -const std::vector<unsigned char> LZMADeCompress - (const std::vector<unsigned char>& buf); - -static inline uint16_t R16(const void* p) -{ - const unsigned char* data = (const unsigned char*)p; - return (data[0] << 0) | (data[1] << 8); -} -static inline uint32_t R32(const void* p) -{ - const unsigned char* data = (const unsigned char*)p; - return R16(data) | (R16(data+2) << 16); -} - -#define L (uint64_t) - -static inline uint64_t R64(const void* p) -{ - const unsigned char* data = (const unsigned char*)p; - return (L R32(data)) | ((L R32(data+4)) << 32); -} - -#undef L - -static UInt32 SelectDictionarySizeFor(unsigned datasize) -{ - #if 1 - return datasize; - #else -#ifdef __GNUC__ - /* gnu c can optimize this switch statement into a fast binary - * search, but it cannot do so for the list of the if statements. - */ - switch(datasize) - { - case 0 ... 512 : return 512; - case 513 ... 1024: return 2048; - case 1025 ... 4096: return 8192; - case 4097 ... 16384: return 32768; - case 16385 ... 65536: return 528288; - case 65537 ... 528288: return 1048576*4; - case 528289 ... 786432: return 1048576*16; - default: return 1048576*32; - } -#else - if(datasize <= 512) return 512; - if(datasize <= 1024) return 1024; - if(datasize <= 4096) return 4096; - if(datasize <= 16384) return 32768; - if(datasize <= 65536) return 528288; - if(datasize <= 528288) return 1048576*4; - if(datasize <= 786432) return 1048576*16; - return 32*1048576; -#endif - #endif -} - - -class CInStreamRam: public ISequentialInStream, public CMyUnknownImp -{ - const std::vector<unsigned char>& input; - size_t Pos; -public: - MY_UNKNOWN_IMP - - CInStreamRam(const std::vector<unsigned char>& buf) : input(buf), Pos(0) - { - } - virtual ~CInStreamRam() {} - - STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize); -}; - -STDMETHODIMP CInStreamRam::Read(void *data, UInt32 size, UInt32 *processedSize) -{ - UInt32 remain = input.size() - Pos; - if (size > remain) size = remain; - - std::memcpy(data, &input[Pos], size); - Pos += size; - - if(processedSize != NULL) *processedSize = size; - - return S_OK; -} - -class COutStreamRam: public ISequentialOutStream, public CMyUnknownImp -{ - std::vector<Byte> result; - size_t Pos; -public: - MY_UNKNOWN_IMP - - COutStreamRam(): result(), Pos(0) { } - virtual ~COutStreamRam() { } - - void Reserve(unsigned n) { result.reserve(n); } - const std::vector<Byte>& Get() const { return result; } - - HRESULT WriteByte(Byte b) - { - if(Pos >= result.size()) result.resize(Pos+1); - result[Pos++] = b; - return S_OK; - } - - STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize); -}; - -STDMETHODIMP COutStreamRam::Write(const void *data, UInt32 size, UInt32 *processedSize) -{ - if(Pos+size > result.size()) result.resize(Pos+size); - - std::memcpy(&result[Pos], data, size); - if(processedSize != NULL) *processedSize = size; - Pos += size; - return S_OK; -} - -const std::vector<unsigned char> LZMACompress(const std::vector<unsigned char>& buf) -{ - if(buf.empty()) return buf; - - const UInt32 dictionarysize = SelectDictionarySizeFor(buf.size()); - - NCompress::NLZMA::CEncoder *encoderSpec = new NCompress::NLZMA::CEncoder; - CMyComPtr<ICompressCoder> encoder = encoderSpec; - const PROPID propIDs[] = - { - NCoderPropID::kAlgorithm, - NCoderPropID::kDictionarySize, - NCoderPropID::kNumFastBytes, - }; - const unsigned kNumProps = sizeof(propIDs) / sizeof(propIDs[0]); - PROPVARIANT properties[kNumProps]; - properties[0].vt = VT_UI4; properties[0].ulVal = (UInt32)2; - properties[1].vt = VT_UI4; properties[1].ulVal = (UInt32)dictionarysize; - properties[2].vt = VT_UI4; properties[2].ulVal = (UInt32)64; - - if (encoderSpec->SetCoderProperties(propIDs, properties, kNumProps) != S_OK) - { - Error: - return std::vector<unsigned char> (); - } - - COutStreamRam *const outStreamSpec = new COutStreamRam; - CMyComPtr<ISequentialOutStream> outStream = outStreamSpec; - CInStreamRam *const inStreamSpec = new CInStreamRam(buf); - CMyComPtr<ISequentialInStream> inStream = inStreamSpec; - - outStreamSpec->Reserve(buf.size()); - - if (encoderSpec->WriteCoderProperties(outStream) != S_OK) goto Error; - - for (unsigned i = 0; i < 8; i++) - { - UInt64 t = (UInt64)buf.size(); - outStreamSpec->WriteByte((Byte)((t) >> (8 * i))); - } - - HRESULT lzmaResult = encoder->Code(inStream, outStream, 0, 0, 0); - if (lzmaResult != S_OK) goto Error; - - return outStreamSpec->Get(); -} - -#undef RC_NORMALIZE - -#include "C/7zip/Decompress/LzmaDecode.h" -#include "C/7zip/Decompress/LzmaDecode.c" - -const std::vector<unsigned char> LZMADeCompress - (const std::vector<unsigned char>& buf) -{ - if(buf.size() <= 5+8) return std::vector<unsigned char> (); - - uint_least64_t out_sizemax = R64(&buf[5]); - - std::vector<unsigned char> result(out_sizemax); - - CLzmaDecoderState state; - LzmaDecodeProperties(&state.Properties, &buf[0], LZMA_PROPERTIES_SIZE); - state.Probs = new CProb[LzmaGetNumProbs(&state.Properties)]; - - SizeT in_done; - SizeT out_done; - LzmaDecode(&state, &buf[13], buf.size()-13, &in_done, - &result[0], result.size(), &out_done); - - delete[] state.Probs; - - result.resize(out_done); - return result; -} - -#ifndef COMPACT -int main(int argc, char *argv[]) -{ - char *s; - FILE *f, *infile, *outfile; - int c; - - if (argc != 4) { - std::fprintf(stderr, "'lzma e file1 file2' encodes file1 into file2.\n" - "'lzma d file2 file1' decodes file2 into file1.\n"); - - return EXIT_FAILURE; - } - if (argc == 4) { - if ((s = argv[1], s[1] || strpbrk(s, "DEde") == NULL) - || (s = argv[2], (infile = fopen(s, "rb")) == NULL) - || (s = argv[3], (outfile = fopen(s, "wb")) == NULL)) { - std::fprintf(stderr, "??? %s\n", s); - return EXIT_FAILURE; - } - } - - struct stat fs; - int si; - if (fstat(fileno(infile), &fs)) { - std::perror(strerror(errno)); - return EXIT_FAILURE; - } - si=fs.st_size; - - char *Buf=(char *)malloc(si); - fread(Buf,si, 1, infile); - - std::vector<unsigned char> result; - if (toupper(*argv[1]) == 'E') - result = LZMACompress(std::vector<unsigned char>(Buf,Buf+si)); - else - result = LZMADeCompress(std::vector<unsigned char>(Buf,Buf+si)); - - fwrite(&result[0], result.size(), 1, outfile); - fclose(infile); - fclose(outfile); - return EXIT_SUCCESS; -} -#else -extern "C" { - -/** - * Compress a buffer with lzma - * Don't copy the result back if it is too large. - * @param in a pointer to the buffer - * @param in_len the length in bytes - * @param out a pointer to a buffer of at least size in_len - * @param out_len a pointer to the compressed length of in - */ - -void do_lzma_compress(char *in, int in_len, char *out, int *out_len) { - std::vector<unsigned char> result; - result = LZMACompress(std::vector<unsigned char>(in, in + in_len)); - *out_len = result.size(); - if (*out_len < in_len) - std::memcpy(out, &result[0], *out_len); -} - -void do_lzma_uncompress(char *dst, int dst_len, char *src, int src_len) { - std::vector<unsigned char> result; - result = LZMADeCompress(std::vector<unsigned char>(src, src + src_len)); - if (result.size() <= (SizeT)dst_len) - std::memcpy(dst, &result[0], result.size()); - else - { - fprintf(stderr, "Not copying %d bytes to %d-byte buffer!\n", - (unsigned int)result.size(), dst_len); - exit(1); - } -} - -} -#endif - |