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