Mercurial > vba-linux

     1 /*  LzmaEnc.h -- LZMA Encoder

     2 2008-10-04 : Igor Pavlov : Public domain */

     3 

     4 #ifndef __LZMAENC_H

     5 #define __LZMAENC_H

     6 

     7 #include "Types.h"

     8 

     9 #define LZMA_PROPS_SIZE 5

    10 

    11 typedef struct _CLzmaEncProps

    12 {

    13   int level;       /*  0 <= level <= 9 */

    14   UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version

    15                       (1 << 12) <= dictSize <= (1 << 30) for 64-bit version

    16                        default = (1 << 24) */

    17   int lc;          /* 0 <= lc <= 8, default = 3 */

    18   int lp;          /* 0 <= lp <= 4, default = 0 */

    19   int pb;          /* 0 <= pb <= 4, default = 2 */

    20   int algo;        /* 0 - fast, 1 - normal, default = 1 */

    21   int fb;          /* 5 <= fb <= 273, default = 32 */

    22   int btMode;      /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */

    23   int numHashBytes; /* 2, 3 or 4, default = 4 */

    24   UInt32 mc;        /* 1 <= mc <= (1 << 30), default = 32 */

    25   unsigned writeEndMark;  /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */

    26   int numThreads;  /* 1 or 2, default = 2 */

    27 } CLzmaEncProps;

    28 

    29 void LzmaEncProps_Init(CLzmaEncProps *p);

    30 void LzmaEncProps_Normalize(CLzmaEncProps *p);

    31 UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);

    32 

    33 

    34 /* ---------- CLzmaEncHandle Interface ---------- */

    35 

    36 /* LzmaEnc_* functions can return the following exit codes:

    37 Returns:

    38   SZ_OK           - OK

    39   SZ_ERROR_MEM    - Memory allocation error

    40   SZ_ERROR_PARAM  - Incorrect paramater in props

    41   SZ_ERROR_WRITE  - Write callback error.

    42   SZ_ERROR_PROGRESS - some break from progress callback

    43   SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)

    44 */

    45 

    46 typedef void * CLzmaEncHandle;

    47 

    48 CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc);

    49 void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);

    50 SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);

    51 SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);

    52 SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,

    53     ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);

    54 SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,

    55     int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);

    56 

    57 /* ---------- One Call Interface ---------- */

    58 

    59 /* LzmaEncode

    60 Return code:

    61   SZ_OK               - OK

    62   SZ_ERROR_MEM        - Memory allocation error

    63   SZ_ERROR_PARAM      - Incorrect paramater

    64   SZ_ERROR_OUTPUT_EOF - output buffer overflow

    65   SZ_ERROR_THREAD     - errors in multithreading functions (only for Mt version)

    66 */

    67 

    68 SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,

    69     const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,

    70     ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);

    71 

    72 #endif
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:35:58 -0600
parents	f9f4f1b99eed
children