Subversion Repositories spk

/* 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);

}