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| 1 /* | |
| 2 LzmaStateDecode.h | |
| 3 LZMA Decoder interface (State version) | |
| 4 | |
| 5 LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01) | |
| 6 http://www.7-zip.org/ | |
| 7 | |
| 8 LZMA SDK is licensed under two licenses: | |
| 9 1) GNU Lesser General Public License (GNU LGPL) | |
| 10 2) Common Public License (CPL) | |
| 11 It means that you can select one of these two licenses and | |
| 12 follow rules of that license. | |
| 13 | |
| 14 SPECIAL EXCEPTION: | |
| 15 Igor Pavlov, as the author of this code, expressly permits you to | |
| 16 statically or dynamically link your code (or bind by name) to the | |
| 17 interfaces of this file without subjecting your linked code to the | |
| 18 terms of the CPL or GNU LGPL. Any modifications or additions | |
| 19 to this file, however, are subject to the LGPL or CPL terms. | |
| 20 */ | |
| 21 | |
| 22 #ifndef __LZMASTATEDECODE_H | |
| 23 #define __LZMASTATEDECODE_H | |
| 24 | |
| 25 #include "LzmaTypes.h" | |
| 26 | |
| 27 /* #define _LZMA_PROB32 */ | |
| 28 /* It can increase speed on some 32-bit CPUs, | |
| 29 but memory usage will be doubled in that case */ | |
| 30 | |
| 31 #ifdef _LZMA_PROB32 | |
| 32 #define CProb UInt32 | |
| 33 #else | |
| 34 #define CProb UInt16 | |
| 35 #endif | |
| 36 | |
| 37 #define LZMA_RESULT_OK 0 | |
| 38 #define LZMA_RESULT_DATA_ERROR 1 | |
| 39 | |
| 40 #define LZMA_BASE_SIZE 1846 | |
| 41 #define LZMA_LIT_SIZE 768 | |
| 42 | |
| 43 #define LZMA_PROPERTIES_SIZE 5 | |
| 44 | |
| 45 typedef struct _CLzmaProperties | |
| 46 { | |
| 47 int lc; | |
| 48 int lp; | |
| 49 int pb; | |
| 50 UInt32 DictionarySize; | |
| 51 }CLzmaProperties; | |
| 52 | |
| 53 int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsDa
ta, int size); | |
| 54 | |
| 55 #define LzmaGetNumProbs(lzmaProps) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((lzmaPro
ps)->lc + (lzmaProps)->lp))) | |
| 56 | |
| 57 #define kLzmaInBufferSize 64 /* don't change it. it must be larger than kRequi
redInBufferSize */ | |
| 58 | |
| 59 #define kLzmaNeedInitId (-2) | |
| 60 | |
| 61 typedef struct _CLzmaDecoderState | |
| 62 { | |
| 63 CLzmaProperties Properties; | |
| 64 CProb *Probs; | |
| 65 unsigned char *Dictionary; | |
| 66 | |
| 67 unsigned char Buffer[kLzmaInBufferSize]; | |
| 68 int BufferSize; | |
| 69 | |
| 70 UInt32 Range; | |
| 71 UInt32 Code; | |
| 72 UInt32 DictionaryPos; | |
| 73 UInt32 GlobalPos; | |
| 74 UInt32 DistanceLimit; | |
| 75 UInt32 Reps[4]; | |
| 76 int State; | |
| 77 int RemainLen; /* -2: decoder needs internal initialization | |
| 78 -1: stream was finished, | |
| 79 0: ok | |
| 80 > 0: need to write RemainLen bytes as match Reps[0], | |
| 81 */ | |
| 82 unsigned char TempDictionary[4]; /* it's required when DictionarySize = 0 */ | |
| 83 } CLzmaDecoderState; | |
| 84 | |
| 85 #define LzmaDecoderInit(vs) { (vs)->RemainLen = kLzmaNeedInitId; (vs)->BufferSiz
e = 0; } | |
| 86 | |
| 87 /* LzmaDecode: decoding from input stream to output stream. | |
| 88 If finishDecoding != 0, then there are no more bytes in input stream | |
| 89 after inStream[inSize - 1]. */ | |
| 90 | |
| 91 int LzmaDecode(CLzmaDecoderState *vs, | |
| 92 const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed, | |
| 93 unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed, | |
| 94 int finishDecoding); | |
| 95 | |
| 96 #endif | |
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Chromium Code Reviews
Issue 624713003:
Keep only base/extractor.[cc|h]. (Closed)
Base URL: https://chromium.googlesource.com/external/omaha.git@master