LzmaLib.c
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LzmaLib.c
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	/* 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);
	}