OpenWrt – Blame information for rev 4

Subversion Repositories:
Rev:
Rev Author Line No. Line
4 office 1 /*
2 LzmaDecode.h
3 LZMA Decoder interface
4  
5 LZMA SDK 4.21 Copyright (c) 1999-2005 Igor Pavlov (2005-06-08)
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 __LZMADECODE_H
23 #define __LZMADECODE_H
24  
25 /* #define _LZMA_IN_CB */
26 /* Use callback for input data */
27  
28 /* #define _LZMA_OUT_READ */
29 /* Use read function for output data */
30  
31 /* #define _LZMA_PROB32 */
32 /* It can increase speed on some 32-bit CPUs,
33 but memory usage will be doubled in that case */
34  
35 /* #define _LZMA_LOC_OPT */
36 /* Enable local speed optimizations inside code */
37  
38 /* #define _LZMA_SYSTEM_SIZE_T */
39 /* Use system's size_t. You can use it to enable 64-bit sizes supporting*/
40  
41 #ifndef UInt32
42 #ifdef _LZMA_UINT32_IS_ULONG
43 #define UInt32 unsigned long
44 #else
45 #define UInt32 unsigned int
46 #endif
47 #endif
48  
49 #ifndef SizeT
50 #ifdef _LZMA_SYSTEM_SIZE_T
51 #include <stddef.h>
52 #define SizeT size_t
53 #else
54 #define SizeT UInt32
55 #endif
56 #endif
57  
58 #ifdef _LZMA_PROB32
59 #define CProb UInt32
60 #else
61 #define CProb unsigned short
62 #endif
63  
64 #define LZMA_RESULT_OK 0
65 #define LZMA_RESULT_DATA_ERROR 1
66  
67 #ifdef _LZMA_IN_CB
68 typedef struct _ILzmaInCallback
69 {
70 int (*Read)(void *object, const unsigned char **buffer, SizeT *bufferSize);
71 } ILzmaInCallback;
72 #endif
73  
74 #define LZMA_BASE_SIZE 1846
75 #define LZMA_LIT_SIZE 768
76  
77 #define LZMA_PROPERTIES_SIZE 5
78  
79 typedef struct _CLzmaProperties
80 {
81 int lc;
82 int lp;
83 int pb;
84 #ifdef _LZMA_OUT_READ
85 UInt32 DictionarySize;
86 #endif
87 }CLzmaProperties;
88  
89 int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size);
90  
91 #define LzmaGetNumProbs(Properties) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp)))
92  
93 #define kLzmaNeedInitId (-2)
94  
95 typedef struct _CLzmaDecoderState
96 {
97 CLzmaProperties Properties;
98 CProb *Probs;
99  
100 #ifdef _LZMA_IN_CB
101 const unsigned char *Buffer;
102 const unsigned char *BufferLim;
103 #endif
104  
105 #ifdef _LZMA_OUT_READ
106 unsigned char *Dictionary;
107 UInt32 Range;
108 UInt32 Code;
109 UInt32 DictionaryPos;
110 UInt32 GlobalPos;
111 UInt32 DistanceLimit;
112 UInt32 Reps[4];
113 int State;
114 int RemainLen;
115 unsigned char TempDictionary[4];
116 #endif
117 } CLzmaDecoderState;
118  
119 #ifdef _LZMA_OUT_READ
120 #define LzmaDecoderInit(vs) { (vs)->RemainLen = kLzmaNeedInitId; }
121 #endif
122  
123 int LzmaDecode(CLzmaDecoderState *vs,
124 #ifdef _LZMA_IN_CB
125 ILzmaInCallback *inCallback,
126 #else
127 const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
128 #endif
129 unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed);
130  
131 #endif