// LzmaRam.h

#ifndef __LzmaRam_h

#define __LzmaRam_h

#include <stdlib.h>

#include "../../../Common/Types.h"

/*

LzmaRamEncode: BCJ + LZMA RAM->RAM compressing.

It uses .lzma format, but it writes one additional byte to .lzma file:

0: - no filter

1: - x86(BCJ) filter.

To provide best compression ratio dictionarySize mustbe >= inSize

LzmaRamEncode allocates Data with MyAlloc/BigAlloc functions.

RAM Requirements:

RamSize = dictionarySize * 9.5 + 6MB + FilterBlockSize

FilterBlockSize = 0, if useFilter == false

FilterBlockSize = inSize, if useFilter == true

Return code:

0 - OK

1 - Unspecified Error

2 - Memory allocating error

3 - Output buffer OVERFLOW

If you use SZ_FILTER_AUTO mode, then encoder will use 2 or 3 passes:

2 passes when FILTER_NO provides better compression.

3 passes when FILTER_YES provides better compression.

*/

enum ESzFilterMode

{

SZ_FILTER_NO,

SZ_FILTER_YES,

SZ_FILTER_AUTO

};

int LzmaRamEncode(

const Byte *inBuffer, size_t inSize,

Byte *outBuffer, size_t outSize, size_t *outSizeProcessed,

UInt32 dictionarySize, ESzFilterMode filterMode);

#endif