/* LzmaLib.c -- LZMA library wrapper | |
2008-08-05 | |
Igor Pavlov | |
Public domain */ | |
#include "LzmaEnc.h" | |
#include "LzmaDec.h" | |
#include "Alloc.h" | |
#include "LzmaLib.h" | |
static void *SzAlloc(void *p, size_t size) { p = p; return MyAlloc(size); } | |
static void SzFree(void *p, void *address) { p = p; MyFree(address); } | |
static ISzAlloc g_Alloc = { SzAlloc, SzFree }; | |
MY_STDAPI LzmaCompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t srcLen, | |
unsigned char *outProps, size_t *outPropsSize, | |
int level, /* 0 <= level <= 9, default = 5 */ | |
unsigned dictSize, /* use (1 << N) or (3 << N). 4 KB < dictSize <= 128 MB */ | |
int lc, /* 0 <= lc <= 8, default = 3 */ | |
int lp, /* 0 <= lp <= 4, default = 0 */ | |
int pb, /* 0 <= pb <= 4, default = 2 */ | |
int fb, /* 5 <= fb <= 273, default = 32 */ | |
int numThreads /* 1 or 2, default = 2 */ | |
) | |
{ | |
CLzmaEncProps props; | |
LzmaEncProps_Init(&props); | |
props.level = level; | |
props.dictSize = dictSize; | |
props.lc = lc; | |
props.lp = lp; | |
props.pb = pb; | |
props.fb = fb; | |
props.numThreads = numThreads; | |
return LzmaEncode(dest, destLen, src, srcLen, &props, outProps, outPropsSize, 0, | |
NULL, &g_Alloc, &g_Alloc); | |
} | |
MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t *srcLen, | |
const unsigned char *props, size_t propsSize) | |
{ | |
ELzmaStatus status; | |
return LzmaDecode(dest, destLen, src, srcLen, props, (unsigned)propsSize, LZMA_FINISH_ANY, &status, &g_Alloc); | |
} |