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/*
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LzmaDecode.c |
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LZMA Decoder |
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LZMA SDK 4.05 Copyright (c) 1999-2004 Igor Pavlov (2004-08-25) |
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http://www.7-zip.org/
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LZMA SDK is licensed under two licenses: |
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1) GNU Lesser General Public License (GNU LGPL) |
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2) Common Public License (CPL) |
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It means that you can select one of these two licenses and
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follow rules of that license. |
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SPECIAL EXCEPTION: |
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Igor Pavlov, as the author of this code, expressly permits you to
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statically or dynamically link your code (or bind by name) to the
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interfaces of this file without subjecting your linked code to the
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terms of the CPL or GNU LGPL. Any modifications or additions
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to this file, however, are subject to the LGPL or CPL terms. |
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*/ |
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#include "LzmaDecode.h" |
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#ifndef Byte |
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#define Byte unsigned char |
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#endif |
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#define kNumTopBits 24 |
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#define kTopValue ((UInt32)1 << kNumTopBits) |
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#define kNumBitModelTotalBits 11 |
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#define kBitModelTotal (1 << kNumBitModelTotalBits) |
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#define kNumMoveBits 5 |
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typedef struct _CRangeDecoder |
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{ |
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Byte *Buffer; |
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Byte *BufferLim; |
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UInt32 Range; |
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UInt32 Code; |
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#ifdef _LZMA_IN_CB |
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ILzmaInCallback *InCallback; |
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int Result; |
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#endif |
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int ExtraBytes; |
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} CRangeDecoder; |
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Byte RangeDecoderReadByte(CRangeDecoder *rd) |
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{ |
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if (rd->Buffer == rd->BufferLim) |
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{ |
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#ifdef _LZMA_IN_CB |
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UInt32 size; |
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rd->Result = rd->InCallback->Read(rd->InCallback, &rd->Buffer, &size); |
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rd->BufferLim = rd->Buffer + size; |
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if (size == 0) |
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#endif |
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{ |
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rd->ExtraBytes = 1; |
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return 0xFF; |
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} |
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} |
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return (*rd->Buffer++); |
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} |
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/* #define ReadByte (*rd->Buffer++) */ |
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#define ReadByte (RangeDecoderReadByte(rd)) |
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void RangeDecoderInit(CRangeDecoder *rd, |
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#ifdef _LZMA_IN_CB |
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ILzmaInCallback *inCallback |
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#else |
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Byte *stream, UInt32 bufferSize |
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#endif |
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) |
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{ |
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int i; |
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#ifdef _LZMA_IN_CB |
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rd->InCallback = inCallback; |
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rd->Buffer = rd->BufferLim = 0; |
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#else |
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rd->Buffer = stream; |
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rd->BufferLim = stream + bufferSize; |
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#endif |
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rd->ExtraBytes = 0; |
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rd->Code = 0; |
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rd->Range = (0xFFFFFFFF); |
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for(i = 0; i < 5; i++) |
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rd->Code = (rd->Code << 8) | ReadByte; |
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} |
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#define RC_INIT_VAR UInt32 range = rd->Range; UInt32 code = rd->Code; |
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#define RC_FLUSH_VAR rd->Range = range; rd->Code = code; |
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#define RC_NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | ReadByte; } |
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UInt32 RangeDecoderDecodeDirectBits(CRangeDecoder *rd, int numTotalBits) |
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{ |
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RC_INIT_VAR |
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UInt32 result = 0; |
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int i; |
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for (i = numTotalBits; i > 0; i--) |
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{ |
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/* UInt32 t; */ |
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range >>= 1; |
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result <<= 1; |
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if (code >= range) |
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{ |
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code -= range; |
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result |= 1; |
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} |
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/*
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t = (code - range) >> 31; |
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t &= 1; |
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code -= range & (t - 1); |
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result = (result + result) | (1 - t); |
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*/ |
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RC_NORMALIZE |
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} |
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RC_FLUSH_VAR |
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return result; |
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} |
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int RangeDecoderBitDecode(CProb *prob, CRangeDecoder *rd) |
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{ |
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UInt32 bound = (rd->Range >> kNumBitModelTotalBits) * *prob; |
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if (rd->Code < bound) |
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{ |
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rd->Range = bound; |
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*prob += (kBitModelTotal - *prob) >> kNumMoveBits; |
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if (rd->Range < kTopValue) |
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{ |
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rd->Code = (rd->Code << 8) | ReadByte; |
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rd->Range <<= 8; |
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} |
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return 0; |
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} |
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else |
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{ |
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rd->Range -= bound; |
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rd->Code -= bound; |
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*prob -= (*prob) >> kNumMoveBits; |
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if (rd->Range < kTopValue) |
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{ |
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rd->Code = (rd->Code << 8) | ReadByte; |
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rd->Range <<= 8; |
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} |
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return 1; |
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} |
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} |
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#define RC_GET_BIT2(prob, mi, A0, A1) \ |
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UInt32 bound = (range >> kNumBitModelTotalBits) * *prob; \
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if (code < bound) \
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{ A0; range = bound; *prob += (kBitModelTotal - *prob) >> kNumMoveBits; mi <<= 1; } \
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else \
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{ A1; range -= bound; code -= bound; *prob -= (*prob) >> kNumMoveBits; mi = (mi + mi) + 1; } \
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RC_NORMALIZE |
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#define RC_GET_BIT(prob, mi) RC_GET_BIT2(prob, mi, ; , ;) |
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int RangeDecoderBitTreeDecode(CProb *probs, int numLevels, CRangeDecoder *rd) |
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{ |
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int mi = 1; |
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int i; |
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#ifdef _LZMA_LOC_OPT |
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RC_INIT_VAR |
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#endif |
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for(i = numLevels; i > 0; i--) |
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{ |
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#ifdef _LZMA_LOC_OPT |
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CProb *prob = probs + mi; |
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RC_GET_BIT(prob, mi) |
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#else |
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mi = (mi + mi) + RangeDecoderBitDecode(probs + mi, rd); |
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#endif |
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} |
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#ifdef _LZMA_LOC_OPT |
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RC_FLUSH_VAR |
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#endif |
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return mi - (1 << numLevels); |
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} |
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int RangeDecoderReverseBitTreeDecode(CProb *probs, int numLevels, CRangeDecoder *rd) |
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{ |
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int mi = 1; |
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int i; |
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int symbol = 0; |
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#ifdef _LZMA_LOC_OPT |
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RC_INIT_VAR |
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#endif |
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for(i = 0; i < numLevels; i++) |
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{ |
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#ifdef _LZMA_LOC_OPT |
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CProb *prob = probs + mi; |
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RC_GET_BIT2(prob, mi, ; , symbol |= (1 << i)) |
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#else |
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int bit = RangeDecoderBitDecode(probs + mi, rd); |
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mi = mi + mi + bit; |
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symbol |= (bit << i); |
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#endif |
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} |
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#ifdef _LZMA_LOC_OPT |
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RC_FLUSH_VAR |
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#endif |
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return symbol; |
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} |
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Byte LzmaLiteralDecode(CProb *probs, CRangeDecoder *rd) |
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{
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int symbol = 1; |
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#ifdef _LZMA_LOC_OPT |
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RC_INIT_VAR |
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#endif |
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do |
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{ |
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#ifdef _LZMA_LOC_OPT |
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CProb *prob = probs + symbol; |
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RC_GET_BIT(prob, symbol) |
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#else |
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symbol = (symbol + symbol) | RangeDecoderBitDecode(probs + symbol, rd); |
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#endif |
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} |
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while (symbol < 0x100); |
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#ifdef _LZMA_LOC_OPT |
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RC_FLUSH_VAR |
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#endif |
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return symbol; |
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} |
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Byte LzmaLiteralDecodeMatch(CProb *probs, CRangeDecoder *rd, Byte matchByte) |
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{
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int symbol = 1; |
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#ifdef _LZMA_LOC_OPT |
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RC_INIT_VAR |
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#endif |
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do |
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{ |
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int bit; |
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int matchBit = (matchByte >> 7) & 1; |
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matchByte <<= 1; |
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#ifdef _LZMA_LOC_OPT |
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{ |
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CProb *prob = probs + ((1 + matchBit) << 8) + symbol; |
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RC_GET_BIT2(prob, symbol, bit = 0, bit = 1) |
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} |
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#else |
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bit = RangeDecoderBitDecode(probs + ((1 + matchBit) << 8) + symbol, rd); |
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symbol = (symbol << 1) | bit; |
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#endif |
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if (matchBit != bit) |
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{ |
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while (symbol < 0x100) |
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{ |
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#ifdef _LZMA_LOC_OPT |
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CProb *prob = probs + symbol; |
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RC_GET_BIT(prob, symbol) |
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#else |
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symbol = (symbol + symbol) | RangeDecoderBitDecode(probs + symbol, rd); |
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#endif |
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} |
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break; |
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} |
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} |
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while (symbol < 0x100); |
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#ifdef _LZMA_LOC_OPT |
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RC_FLUSH_VAR |
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#endif |
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return symbol; |
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} |
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#define kNumPosBitsMax 4 |
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#define kNumPosStatesMax (1 << kNumPosBitsMax) |
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#define kLenNumLowBits 3 |
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#define kLenNumLowSymbols (1 << kLenNumLowBits) |
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#define kLenNumMidBits 3 |
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#define kLenNumMidSymbols (1 << kLenNumMidBits) |
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#define kLenNumHighBits 8 |
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#define kLenNumHighSymbols (1 << kLenNumHighBits) |
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#define LenChoice 0 |
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#define LenChoice2 (LenChoice + 1) |
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#define LenLow (LenChoice2 + 1) |
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#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits)) |
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#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits)) |
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#define kNumLenProbs (LenHigh + kLenNumHighSymbols) |
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int LzmaLenDecode(CProb *p, CRangeDecoder *rd, int posState) |
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{ |
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if(RangeDecoderBitDecode(p + LenChoice, rd) == 0) |
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return RangeDecoderBitTreeDecode(p + LenLow + |
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(posState << kLenNumLowBits), kLenNumLowBits, rd); |
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if(RangeDecoderBitDecode(p + LenChoice2, rd) == 0) |
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return kLenNumLowSymbols + RangeDecoderBitTreeDecode(p + LenMid + |
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(posState << kLenNumMidBits), kLenNumMidBits, rd); |
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return kLenNumLowSymbols + kLenNumMidSymbols +
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RangeDecoderBitTreeDecode(p + LenHigh, kLenNumHighBits, rd); |
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} |
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#define kNumStates 12 |
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#define kStartPosModelIndex 4 |
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#define kEndPosModelIndex 14 |
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#define kNumFullDistances (1 << (kEndPosModelIndex >> 1)) |
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#define kNumPosSlotBits 6 |
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#define kNumLenToPosStates 4 |
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#define kNumAlignBits 4 |
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#define kAlignTableSize (1 << kNumAlignBits) |
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#define kMatchMinLen 2 |
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#define IsMatch 0 |
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#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax)) |
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#define IsRepG0 (IsRep + kNumStates) |
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#define IsRepG1 (IsRepG0 + kNumStates) |
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#define IsRepG2 (IsRepG1 + kNumStates) |
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#define IsRep0Long (IsRepG2 + kNumStates) |
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#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax)) |
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#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits)) |
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#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex) |
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#define LenCoder (Align + kAlignTableSize) |
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#define RepLenCoder (LenCoder + kNumLenProbs) |
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#define Literal (RepLenCoder + kNumLenProbs) |
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#if Literal != LZMA_BASE_SIZE |
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StopCompilingDueBUG |
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#endif |
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#ifdef _LZMA_OUT_READ |
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typedef struct _LzmaVarState |
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{ |
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CRangeDecoder RangeDecoder; |
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Byte *Dictionary; |
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UInt32 DictionarySize; |
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UInt32 DictionaryPos; |
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UInt32 GlobalPos; |
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UInt32 Reps[4]; |
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int lc; |
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int lp; |
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int pb; |
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int State; |
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int PreviousIsMatch; |
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int RemainLen; |
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} LzmaVarState; |
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int LzmaDecoderInit( |
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unsigned char *buffer, UInt32 bufferSize, |
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int lc, int lp, int pb, |
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unsigned char *dictionary, UInt32 dictionarySize, |
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#ifdef _LZMA_IN_CB |
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ILzmaInCallback *inCallback |
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#else |
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unsigned char *inStream, UInt32 inSize |
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#endif |
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) |
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{ |
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LzmaVarState *vs = (LzmaVarState *)buffer; |
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CProb *p = (CProb *)(buffer + sizeof(LzmaVarState)); |
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UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + lp)); |
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UInt32 i; |
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if (bufferSize < numProbs * sizeof(CProb) + sizeof(LzmaVarState)) |
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return LZMA_RESULT_NOT_ENOUGH_MEM; |
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vs->Dictionary = dictionary; |
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vs->DictionarySize = dictionarySize; |
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vs->DictionaryPos = 0; |
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vs->GlobalPos = 0; |
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vs->Reps[0] = vs->Reps[1] = vs->Reps[2] = vs->Reps[3] = 1; |
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vs->lc = lc; |
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vs->lp = lp; |
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vs->pb = pb; |
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vs->State = 0; |
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vs->PreviousIsMatch = 0; |
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vs->RemainLen = 0; |
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dictionary[dictionarySize - 1] = 0; |
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for (i = 0; i < numProbs; i++) |
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p[i] = kBitModelTotal >> 1;
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RangeDecoderInit(&vs->RangeDecoder,
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#ifdef _LZMA_IN_CB |
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inCallback |
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#else |
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inStream, inSize |
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#endif |
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); |
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return LZMA_RESULT_OK; |
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} |
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int LzmaDecode(unsigned char *buffer,
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unsigned char *outStream, UInt32 outSize, |
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UInt32 *outSizeProcessed) |
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{ |
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LzmaVarState *vs = (LzmaVarState *)buffer; |
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CProb *p = (CProb *)(buffer + sizeof(LzmaVarState)); |
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CRangeDecoder rd = vs->RangeDecoder; |
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int state = vs->State; |
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int previousIsMatch = vs->PreviousIsMatch; |
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Byte previousByte; |
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UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3]; |
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UInt32 nowPos = 0; |
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UInt32 posStateMask = (1 << (vs->pb)) - 1; |
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UInt32 literalPosMask = (1 << (vs->lp)) - 1; |
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int lc = vs->lc; |
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int len = vs->RemainLen; |
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UInt32 globalPos = vs->GlobalPos; |
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Byte *dictionary = vs->Dictionary; |
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UInt32 dictionarySize = vs->DictionarySize; |
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UInt32 dictionaryPos = vs->DictionaryPos; |
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if (len == -1) |
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{ |
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*outSizeProcessed = 0; |
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return LZMA_RESULT_OK; |
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} |
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while(len > 0 && nowPos < outSize) |
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{ |
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UInt32 pos = dictionaryPos - rep0; |
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if (pos >= dictionarySize) |
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pos += dictionarySize; |
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outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos]; |
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if (++dictionaryPos == dictionarySize) |
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dictionaryPos = 0; |
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len--; |
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} |
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if (dictionaryPos == 0) |
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previousByte = dictionary[dictionarySize - 1]; |
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else |
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previousByte = dictionary[dictionaryPos - 1]; |
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#else |
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int LzmaDecode( |
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Byte *buffer, UInt32 bufferSize, |
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int lc, int lp, int pb, |
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#ifdef _LZMA_IN_CB |
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ILzmaInCallback *inCallback, |
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#else |
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unsigned char *inStream, UInt32 inSize, |
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#endif |
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unsigned char *outStream, UInt32 outSize, |
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UInt32 *outSizeProcessed) |
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{ |
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UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + lp)); |
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CProb *p = (CProb *)buffer; |
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CRangeDecoder rd; |
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UInt32 i; |
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int state = 0; |
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int previousIsMatch = 0; |
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Byte previousByte = 0; |
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UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1; |
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UInt32 nowPos = 0; |
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UInt32 posStateMask = (1 << pb) - 1; |
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UInt32 literalPosMask = (1 << lp) - 1; |
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int len = 0; |
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if (bufferSize < numProbs * sizeof(CProb)) |
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return LZMA_RESULT_NOT_ENOUGH_MEM; |
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for (i = 0; i < numProbs; i++) |
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p[i] = kBitModelTotal >> 1;
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RangeDecoderInit(&rd,
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#ifdef _LZMA_IN_CB |
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inCallback |
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#else |
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inStream, inSize |
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#endif |
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); |
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#endif |
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*outSizeProcessed = 0; |
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while(nowPos < outSize) |
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{ |
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int posState = (int)( |
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(nowPos
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#ifdef _LZMA_OUT_READ |
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+ globalPos |
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#endif |
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) |
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& posStateMask); |
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#ifdef _LZMA_IN_CB |
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if (rd.Result != LZMA_RESULT_OK) |
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return rd.Result; |
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#endif |
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if (rd.ExtraBytes != 0) |
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return LZMA_RESULT_DATA_ERROR; |
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if (RangeDecoderBitDecode(p + IsMatch + (state << kNumPosBitsMax) + posState, &rd) == 0) |
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{ |
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CProb *probs = p + Literal + (LZMA_LIT_SIZE *
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((( |
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(nowPos
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#ifdef _LZMA_OUT_READ |
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+ globalPos |
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#endif |
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) |
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& literalPosMask) << lc) + (previousByte >> (8 - lc)))); |
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if (state < 4) state = 0; |
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else if (state < 10) state -= 3; |
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else state -= 6; |
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if (previousIsMatch) |
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{ |
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Byte matchByte; |
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#ifdef _LZMA_OUT_READ |
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UInt32 pos = dictionaryPos - rep0; |
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if (pos >= dictionarySize) |
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pos += dictionarySize; |
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matchByte = dictionary[pos]; |
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#else |
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matchByte = outStream[nowPos - rep0]; |
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#endif |
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previousByte = LzmaLiteralDecodeMatch(probs, &rd, matchByte); |
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previousIsMatch = 0; |
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} |
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else |
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previousByte = LzmaLiteralDecode(probs, &rd); |
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outStream[nowPos++] = previousByte; |
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#ifdef _LZMA_OUT_READ |
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dictionary[dictionaryPos] = previousByte; |
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if (++dictionaryPos == dictionarySize) |
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dictionaryPos = 0; |
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#endif |
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} |
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else
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{ |
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previousIsMatch = 1; |
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if (RangeDecoderBitDecode(p + IsRep + state, &rd) == 1) |
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{ |
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if (RangeDecoderBitDecode(p + IsRepG0 + state, &rd) == 0) |
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{ |
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if (RangeDecoderBitDecode(p + IsRep0Long + (state << kNumPosBitsMax) + posState, &rd) == 0) |
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{ |
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#ifdef _LZMA_OUT_READ |
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UInt32 pos; |
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#endif |
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if ( |
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(nowPos
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#ifdef _LZMA_OUT_READ |
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+ globalPos |
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#endif |
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) |
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== 0) |
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return LZMA_RESULT_DATA_ERROR; |
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state = state < 7 ? 9 : 11; |
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#ifdef _LZMA_OUT_READ |
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pos = dictionaryPos - rep0; |
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if (pos >= dictionarySize) |
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pos += dictionarySize; |
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previousByte = dictionary[pos]; |
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dictionary[dictionaryPos] = previousByte; |
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if (++dictionaryPos == dictionarySize) |
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dictionaryPos = 0; |
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#else |
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previousByte = outStream[nowPos - rep0]; |
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#endif |
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outStream[nowPos++] = previousByte; |
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continue; |
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} |
||||
} |
||||
else |
||||
{ |
||||
UInt32 distance; |
||||
if(RangeDecoderBitDecode(p + IsRepG1 + state, &rd) == 0) |
||||
distance = rep1; |
||||
else
|
||||
{ |
||||
if(RangeDecoderBitDecode(p + IsRepG2 + state, &rd) == 0) |
||||
distance = rep2; |
||||
else |
||||
{ |
||||
distance = rep3; |
||||
rep3 = rep2; |
||||
} |
||||
rep2 = rep1; |
||||
} |
||||
rep1 = rep0; |
||||
rep0 = distance; |
||||
} |
||||
len = LzmaLenDecode(p + RepLenCoder, &rd, posState); |
||||
state = state < 7 ? 8 : 11; |
||||
} |
||||
else |
||||
{ |
||||
int posSlot; |
||||
rep3 = rep2; |
||||
rep2 = rep1; |
||||
rep1 = rep0; |
||||
state = state < 7 ? 7 : 10; |
||||
len = LzmaLenDecode(p + LenCoder, &rd, posState); |
||||
posSlot = RangeDecoderBitTreeDecode(p + PosSlot + |
||||
((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
|
||||
kNumPosSlotBits), kNumPosSlotBits, &rd); |
||||
if (posSlot >= kStartPosModelIndex) |
||||
{ |
||||
int numDirectBits = ((posSlot >> 1) - 1); |
||||
rep0 = ((2 | ((UInt32)posSlot & 1)) << numDirectBits); |
||||
if (posSlot < kEndPosModelIndex) |
||||
{ |
||||
rep0 += RangeDecoderReverseBitTreeDecode( |
||||
p + SpecPos + rep0 - posSlot - 1, numDirectBits, &rd); |
||||
} |
||||
else |
||||
{ |
||||
rep0 += RangeDecoderDecodeDirectBits(&rd,
|
||||
numDirectBits - kNumAlignBits) << kNumAlignBits; |
||||
rep0 += RangeDecoderReverseBitTreeDecode(p + Align, kNumAlignBits, &rd); |
||||
} |
||||
} |
||||
else |
||||
rep0 = posSlot; |
||||
rep0++; |
||||
} |
||||
if (rep0 == (UInt32)(0)) |
||||
{ |
||||
/* it's for stream version */ |
||||
len = -1; |
||||
break; |
||||
} |
||||
if (rep0 > nowPos
|
||||
#ifdef _LZMA_OUT_READ |
||||
+ globalPos |
||||
#endif |
||||
) |
||||
{ |
||||
return LZMA_RESULT_DATA_ERROR; |
||||
} |
||||
len += kMatchMinLen; |
||||
do |
||||
{ |
||||
#ifdef _LZMA_OUT_READ |
||||
UInt32 pos = dictionaryPos - rep0; |
||||
if (pos >= dictionarySize) |
||||
pos += dictionarySize; |
||||
previousByte = dictionary[pos]; |
||||
dictionary[dictionaryPos] = previousByte; |
||||
if (++dictionaryPos == dictionarySize) |
||||
dictionaryPos = 0; |
||||
#else |
||||
previousByte = outStream[nowPos - rep0]; |
||||
#endif |
||||
outStream[nowPos++] = previousByte; |
||||
len--; |
||||
} |
||||
while(len > 0 && nowPos < outSize); |
||||
} |
||||
} |
||||
|
||||
#ifdef _LZMA_OUT_READ |
||||
vs->RangeDecoder = rd; |
||||
vs->DictionaryPos = dictionaryPos; |
||||
vs->GlobalPos = globalPos + nowPos; |
||||
vs->Reps[0] = rep0; |
||||
vs->Reps[1] = rep1; |
||||
vs->Reps[2] = rep2; |
||||
vs->Reps[3] = rep3; |
||||
vs->State = state; |
||||
vs->PreviousIsMatch = previousIsMatch; |
||||
vs->RemainLen = len; |
||||
#endif |
||||
|
||||
*outSizeProcessed = nowPos; |
||||
return LZMA_RESULT_OK; |
||||
} |
@ -0,0 +1,100 @@ |
||||
/*
|
||||
LzmaDecode.h |
||||
LZMA Decoder interface |
||||
|
||||
LZMA SDK 4.05 Copyright (c) 1999-2004 Igor Pavlov (2004-08-25) |
||||
http://www.7-zip.org/
|
||||
|
||||
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. |
||||
*/ |
||||
|
||||
#ifndef __LZMADECODE_H |
||||
#define __LZMADECODE_H |
||||
|
||||
/* #define _LZMA_IN_CB */ |
||||
/* Use callback for input data */ |
||||
|
||||
/* #define _LZMA_OUT_READ */ |
||||
/* Use read function for output data */ |
||||
|
||||
/* #define _LZMA_PROB32 */ |
||||
/* It can increase speed on some 32-bit CPUs,
|
||||
but memory usage will be doubled in that case */ |
||||
|
||||
/* #define _LZMA_LOC_OPT */ |
||||
/* Enable local speed optimizations inside code */ |
||||
|
||||
#ifndef UInt32 |
||||
#ifdef _LZMA_UINT32_IS_ULONG |
||||
#define UInt32 unsigned long |
||||
#else |
||||
#define UInt32 unsigned int |
||||
#endif |
||||
#endif |
||||
|
||||
#ifdef _LZMA_PROB32 |
||||
#define CProb UInt32 |
||||
#else |
||||
#define CProb unsigned short |
||||
#endif |
||||
|
||||
#define LZMA_RESULT_OK 0 |
||||
#define LZMA_RESULT_DATA_ERROR 1 |
||||
#define LZMA_RESULT_NOT_ENOUGH_MEM 2 |
||||
|
||||
#ifdef _LZMA_IN_CB |
||||
typedef struct _ILzmaInCallback |
||||
{ |
||||
int (*Read)(void *object, unsigned char **buffer, UInt32 *bufferSize); |
||||
} ILzmaInCallback; |
||||
#endif |
||||
|
||||
#define LZMA_BASE_SIZE 1846 |
||||
#define LZMA_LIT_SIZE 768 |
||||
|
||||
/*
|
||||
bufferSize = (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp)))* sizeof(CProb) |
||||
bufferSize += 100 in case of _LZMA_OUT_READ |
||||
by default CProb is unsigned short,
|
||||
but if specify _LZMA_PROB_32, CProb will be UInt32(unsigned int) |
||||
*/ |
||||
|
||||
#ifdef _LZMA_OUT_READ |
||||
int LzmaDecoderInit( |
||||
unsigned char *buffer, UInt32 bufferSize, |
||||
int lc, int lp, int pb, |
||||
unsigned char *dictionary, UInt32 dictionarySize, |
||||
#ifdef _LZMA_IN_CB |
||||
ILzmaInCallback *inCallback |
||||
#else |
||||
unsigned char *inStream, UInt32 inSize |
||||
#endif |
||||
); |
||||
#endif |
||||
|
||||
int LzmaDecode( |
||||
unsigned char *buffer,
|
||||
#ifndef _LZMA_OUT_READ |
||||
UInt32 bufferSize, |
||||
int lc, int lp, int pb, |
||||
#ifdef _LZMA_IN_CB |
||||
ILzmaInCallback *inCallback, |
||||
#else |
||||
unsigned char *inStream, UInt32 inSize, |
||||
#endif |
||||
#endif |
||||
unsigned char *outStream, UInt32 outSize, |
||||
UInt32 *outSizeProcessed); |
||||
|
||||
#endif |
File diff suppressed because it is too large
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Reference in new issue