1 files changed, 109 insertions, 0 deletions
diff --git a/util/cbfstool/lzma/lzma.hh b/util/cbfstool/lzma/lzma.hh
new file mode 100644
index 0000000000..5e00ef2d43
--- /dev/null
+++ b/util/cbfstool/lzma/lzma.hh
@@ -0,0 +1,109 @@
+#ifndef HHlzmaHH
+#define HHlzmaHH
+
+#include <vector>
+
+extern int LZMA_verbose;
+
+extern unsigned LZMA_NumFastBytes;
+extern unsigned LZMA_AlgorithmNo;
+extern unsigned LZMA_PosStateBits;
+extern unsigned LZMA_LiteralPosStateBits;
+extern unsigned LZMA_LiteralContextBits;
+
+/* decompress LZMA-compressed data. */
+const std::vector<unsigned char> LZMADeCompress
+    (const unsigned char* data, std::size_t length);
+
+const std::vector<unsigned char> LZMADeCompress
+    (const unsigned char* data, std::size_t length, bool& ok);
+
+static inline const std::vector<unsigned char> LZMADeCompress
+    (const std::vector<unsigned char>& buf)
+    { return LZMADeCompress(&buf[0], buf.size()); }
+
+static inline const std::vector<unsigned char> LZMADeCompress
+    (const std::vector<unsigned char>& buf, bool& ok)
+    { return LZMADeCompress(&buf[0], buf.size(), ok); }
+
+/* LZMA-compress data with current settings. */
+const std::vector<unsigned char> LZMACompress
+    (const unsigned char* data, std::size_t length);
+
+static inline const std::vector<unsigned char> LZMACompress
+    (const std::vector<unsigned char>& buf)
+        { return LZMACompress(&buf[0], buf.size()); }
+
+/* LZMA-compress data with given settings. */
+const std::vector<unsigned char> LZMACompress
+    (const unsigned char* data, std::size_t length,
+     unsigned pb,
+     unsigned lp,
+     unsigned lc);
+
+static inline const std::vector<unsigned char> LZMACompress
+    (const std::vector<unsigned char>& buf,
+     unsigned pb,
+     unsigned lp,
+     unsigned lc)
+     { return LZMACompress(&buf[0], buf.size(), pb,lp,lc); }
+
+const std::vector<unsigned char> LZMACompress(
+    const unsigned char* data, std::size_t length,
+    unsigned pb,
+    unsigned lp,
+    unsigned lc,
+    unsigned dictionarysize);
+
+static inline const std::vector<unsigned char> LZMACompress(
+    const std::vector<unsigned char>& buf,
+    unsigned pb,
+    unsigned lp,
+    unsigned lc,
+    unsigned dictionarysize)
+    { return LZMACompress(&buf[0], buf.size(), pb,lp,lc,dictionarysize); }
+
+/* LZMA-compress data with every settings (5*5*9 times), taking the best.
+ * It will consume a lot of time and output useful statistics,
+ * so a context parameter ("why") is also given.
+ */
+const std::vector<unsigned char> LZMACompressHeavy
+    (const unsigned char* data, std::size_t length,
+     const char* why = "?");
+
+const std::vector<unsigned char> LZMACompressAuto
+    (const unsigned char* data, std::size_t length,
+     const char* why = "?");
+
+static inline const std::vector<unsigned char> LZMACompressHeavy
+    (const std::vector<unsigned char>& buf,
+     const char* why = "?")
+     { return LZMACompressHeavy(&buf[0],buf.size(),why); }
+
+static inline const std::vector<unsigned char> LZMACompressAuto
+    (const std::vector<unsigned char>& buf,
+     const char* why = "?")
+     { return LZMACompressAuto(&buf[0],buf.size(),why); }
+
+const std::vector<unsigned char>
+    DoLZMACompress(int HeavyLevel,
+        const unsigned char* data,
+        std::size_t          length,
+        const char* why = "?");
+
+static inline const std::vector<unsigned char>
+    DoLZMACompress(int HeavyLevel,
+        const std::vector<unsigned char>& data, const char* why = "?")
+    { return DoLZMACompress(HeavyLevel, &data[0], data.size(), why); }
+
+
+/*
+LZMA compressed file format
+ ---------------------------
+ Offset Size Description
+   0     1   Special LZMA properties for compressed data
+   1     4   Dictionary size (little endian)
+   5     8   Uncompressed size (little endian). -1 means unknown size
+  13         Compressed data
+*/
+#endif