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/* |
LzmaDecode.h |
LZMA Decoder interface |
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LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01) |
http://www.7-zip.org/ |
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LZMA SDK is licensed under two licenses: |
1) GNU Lesser General Public License (GNU LGPL) |
2) Common Public License (CPL) |
It means that you can select one of these two licenses and |
follow rules of that license. |
|
SPECIAL EXCEPTION: |
Igor Pavlov, as the author of this code, expressly permits you to |
statically or dynamically link your code (or bind by name) to the |
interfaces of this file without subjecting your linked code to the |
terms of the CPL or GNU LGPL. Any modifications or additions |
to this file, however, are subject to the LGPL or CPL terms. |
*/ |
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#ifndef __LZMADECODE_H |
#define __LZMADECODE_H |
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#include "LzmaTypes.h" |
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/* #define _LZMA_IN_CB */ |
/* Use callback for input data */ |
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/* #define _LZMA_OUT_READ */ |
/* Use read function for output data */ |
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/* #define _LZMA_PROB32 */ |
/* It can increase speed on some 32-bit CPUs, |
but memory usage will be doubled in that case */ |
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/* #define _LZMA_LOC_OPT */ |
/* Enable local speed optimizations inside code */ |
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#ifdef _LZMA_PROB32 |
#define CProb UInt32 |
#else |
#define CProb UInt16 |
#endif |
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#define LZMA_RESULT_OK 0 |
#define LZMA_RESULT_DATA_ERROR 1 |
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#ifdef _LZMA_IN_CB |
typedef struct _ILzmaInCallback |
{ |
int (*Read)(void *object, const unsigned char **buffer, SizeT *bufferSize); |
} ILzmaInCallback; |
#endif |
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#define LZMA_BASE_SIZE 1846 |
#define LZMA_LIT_SIZE 768 |
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#define LZMA_PROPERTIES_SIZE 5 |
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typedef struct _CLzmaProperties |
{ |
int lc; |
int lp; |
int pb; |
#ifdef _LZMA_OUT_READ |
UInt32 DictionarySize; |
#endif |
}CLzmaProperties; |
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int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size); |
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#define LzmaGetNumProbs(Properties) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp))) |
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#define kLzmaNeedInitId (-2) |
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typedef struct _CLzmaDecoderState |
{ |
CLzmaProperties Properties; |
CProb *Probs; |
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#ifdef _LZMA_IN_CB |
const unsigned char *Buffer; |
const unsigned char *BufferLim; |
#endif |
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#ifdef _LZMA_OUT_READ |
unsigned char *Dictionary; |
UInt32 Range; |
UInt32 Code; |
UInt32 DictionaryPos; |
UInt32 GlobalPos; |
UInt32 DistanceLimit; |
UInt32 Reps[4]; |
int State; |
int RemainLen; |
unsigned char TempDictionary[4]; |
#endif |
} CLzmaDecoderState; |
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#ifdef _LZMA_OUT_READ |
#define LzmaDecoderInit(vs) { (vs)->RemainLen = kLzmaNeedInitId; } |
#endif |
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int LzmaDecode(CLzmaDecoderState *vs, |
#ifdef _LZMA_IN_CB |
ILzmaInCallback *inCallback, |
#else |
const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed, |
#endif |
unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed); |
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#endif |