OpenWrt – Blame information for rev 1
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1 | office | 1 | /* |
2 | LzmaDecode.h |
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3 | LZMA Decoder interface |
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4 | |||
5 | LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01) |
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6 | http://www.7-zip.org/ |
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7 | |||
8 | LZMA SDK is licensed under two licenses: |
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9 | 1) GNU Lesser General Public License (GNU LGPL) |
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10 | 2) Common Public License (CPL) |
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11 | It means that you can select one of these two licenses and |
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12 | follow rules of that license. |
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13 | |||
14 | SPECIAL EXCEPTION: |
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15 | Igor Pavlov, as the author of this code, expressly permits you to |
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16 | statically or dynamically link your code (or bind by name) to the |
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17 | interfaces of this file without subjecting your linked code to the |
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18 | terms of the CPL or GNU LGPL. Any modifications or additions |
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19 | to this file, however, are subject to the LGPL or CPL terms. |
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20 | */ |
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21 | |||
22 | #ifndef __LZMADECODE_H |
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23 | #define __LZMADECODE_H |
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24 | |||
25 | #include "LzmaTypes.h" |
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26 | |||
27 | /* #define _LZMA_IN_CB */ |
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28 | /* Use callback for input data */ |
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29 | |||
30 | /* #define _LZMA_OUT_READ */ |
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31 | /* Use read function for output data */ |
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32 | |||
33 | /* #define _LZMA_PROB32 */ |
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34 | /* It can increase speed on some 32-bit CPUs, |
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35 | but memory usage will be doubled in that case */ |
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36 | |||
37 | /* #define _LZMA_LOC_OPT */ |
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38 | /* Enable local speed optimizations inside code */ |
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39 | |||
40 | #ifdef _LZMA_PROB32 |
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41 | #define CProb UInt32 |
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42 | #else |
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43 | #define CProb UInt16 |
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44 | #endif |
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45 | |||
46 | #define LZMA_RESULT_OK 0 |
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47 | #define LZMA_RESULT_DATA_ERROR 1 |
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48 | |||
49 | #ifdef _LZMA_IN_CB |
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50 | typedef struct _ILzmaInCallback |
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51 | { |
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52 | int (*Read)(void *object, const unsigned char **buffer, SizeT *bufferSize); |
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53 | } ILzmaInCallback; |
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54 | #endif |
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55 | |||
56 | #define LZMA_BASE_SIZE 1846 |
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57 | #define LZMA_LIT_SIZE 768 |
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58 | |||
59 | #define LZMA_PROPERTIES_SIZE 5 |
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60 | |||
61 | typedef struct _CLzmaProperties |
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62 | { |
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63 | int lc; |
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64 | int lp; |
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65 | int pb; |
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66 | #ifdef _LZMA_OUT_READ |
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67 | UInt32 DictionarySize; |
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68 | #endif |
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69 | }CLzmaProperties; |
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70 | |||
71 | int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size); |
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72 | |||
73 | #define LzmaGetNumProbs(Properties) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp))) |
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74 | |||
75 | #define kLzmaNeedInitId (-2) |
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76 | |||
77 | typedef struct _CLzmaDecoderState |
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78 | { |
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79 | CLzmaProperties Properties; |
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80 | CProb *Probs; |
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81 | |||
82 | #ifdef _LZMA_IN_CB |
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83 | const unsigned char *Buffer; |
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84 | const unsigned char *BufferLim; |
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85 | #endif |
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86 | |||
87 | #ifdef _LZMA_OUT_READ |
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88 | unsigned char *Dictionary; |
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89 | UInt32 Range; |
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90 | UInt32 Code; |
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91 | UInt32 DictionaryPos; |
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92 | UInt32 GlobalPos; |
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93 | UInt32 DistanceLimit; |
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94 | UInt32 Reps[4]; |
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95 | int State; |
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96 | int RemainLen; |
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97 | unsigned char TempDictionary[4]; |
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98 | #endif |
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99 | } CLzmaDecoderState; |
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100 | |||
101 | #ifdef _LZMA_OUT_READ |
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102 | #define LzmaDecoderInit(vs) { (vs)->RemainLen = kLzmaNeedInitId; } |
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103 | #endif |
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104 | |||
105 | int LzmaDecode(CLzmaDecoderState *vs, |
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106 | #ifdef _LZMA_IN_CB |
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107 | ILzmaInCallback *inCallback, |
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108 | #else |
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109 | const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed, |
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110 | #endif |
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111 | unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed); |
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112 | |||
113 | #endif |