1 /* LzmaLib.c -- LZMA library wrapper
2 2015-06-13 : Igor Pavlov : Public domain */
3
4 #include "Alloc.h"
5 #include "LzmaDec.h"
6 #include "LzmaEnc.h"
7 #include "LzmaLib.h"
8
LzmaCompress(unsigned char * dest,size_t * destLen,const unsigned char * src,size_t srcLen,unsigned char * outProps,size_t * outPropsSize,int level,unsigned dictSize,int lc,int lp,int pb,int fb,int numThreads)9 MY_STDAPI LzmaCompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t srcLen,
10 unsigned char *outProps, size_t *outPropsSize,
11 int level, /* 0 <= level <= 9, default = 5 */
12 unsigned dictSize, /* use (1 << N) or (3 << N). 4 KB < dictSize <= 128 MB */
13 int lc, /* 0 <= lc <= 8, default = 3 */
14 int lp, /* 0 <= lp <= 4, default = 0 */
15 int pb, /* 0 <= pb <= 4, default = 2 */
16 int fb, /* 5 <= fb <= 273, default = 32 */
17 int numThreads /* 1 or 2, default = 2 */
18 )
19 {
20 CLzmaEncProps props;
21 LzmaEncProps_Init(&props);
22 props.level = level;
23 props.dictSize = dictSize;
24 props.lc = lc;
25 props.lp = lp;
26 props.pb = pb;
27 props.fb = fb;
28 props.numThreads = numThreads;
29
30 return LzmaEncode(dest, destLen, src, srcLen, &props, outProps, outPropsSize, 0,
31 NULL, &g_Alloc, &g_Alloc);
32 }
33
34
LzmaUncompress(unsigned char * dest,size_t * destLen,const unsigned char * src,size_t * srcLen,const unsigned char * props,size_t propsSize)35 MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t *srcLen,
36 const unsigned char *props, size_t propsSize)
37 {
38 ELzmaStatus status;
39 return LzmaDecode(dest, destLen, src, srcLen, props, (unsigned)propsSize, LZMA_FINISH_ANY, &status, &g_Alloc);
40 }
41