goat3d

view libs/openctm/liblzma/LzmaLib.c @ 14:188c697b3b49

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- added a document describing the goat3d file format chunk hierarchy - started an alternative XML-based file format - added the openctm library
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 26 Sep 2013 04:47:05 +0300
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1 /* LzmaLib.c -- LZMA library wrapper
2 2008-08-05
3 Igor Pavlov
4 Public domain */
5
6 #include "LzmaEnc.h"
7 #include "LzmaDec.h"
8 #include "Alloc.h"
9 #include "LzmaLib.h"
10
11 static void *SzAlloc(void *p, size_t size) { p = p; return MyAlloc(size); }
12 static void SzFree(void *p, void *address) { p = p; MyFree(address); }
13 static ISzAlloc g_Alloc = { SzAlloc, SzFree };
14
15 MY_STDAPI LzmaCompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t srcLen,
16 unsigned char *outProps, size_t *outPropsSize,
17 int level, /* 0 <= level <= 9, default = 5 */
18 unsigned dictSize, /* use (1 << N) or (3 << N). 4 KB < dictSize <= 128 MB */
19 int lc, /* 0 <= lc <= 8, default = 3 */
20 int lp, /* 0 <= lp <= 4, default = 0 */
21 int pb, /* 0 <= pb <= 4, default = 2 */
22 int fb, /* 5 <= fb <= 273, default = 32 */
23 int numThreads, /* 1 or 2, default = 2 */
24 int algo /* 0 = fast, 1 = normal */
25 )
26 {
27 CLzmaEncProps props;
28 LzmaEncProps_Init(&props);
29 props.level = level;
30 props.dictSize = dictSize;
31 props.lc = lc;
32 props.lp = lp;
33 props.pb = pb;
34 props.fb = fb;
35 props.numThreads = numThreads;
36 props.algo = algo;
37
38 return LzmaEncode(dest, destLen, src, srcLen, &props, outProps, outPropsSize, 0,
39 NULL, &g_Alloc, &g_Alloc);
40 }
41
42
43 MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t *srcLen,
44 const unsigned char *props, size_t propsSize)
45 {
46 ELzmaStatus status;
47 return LzmaDecode(dest, destLen, src, srcLen, props, (unsigned)propsSize, LZMA_FINISH_ANY, &status, &g_Alloc);
48 }