| /* LzmaLib.c -- LZMA library wrapper |
| 2008-08-05 |
| Igor Pavlov |
| Public domain |
| in the 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); |
| } |