coreboot-kgpe-d16/util/cbfstool/lzma/lzma.hh

110 lines
3.5 KiB
C++

#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