f69251d87e
git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@7245 212acab6-be3b-0410-9dea-997c60f758d6
140 lines
2.7 KiB
C
140 lines
2.7 KiB
C
/*
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* LZMADecode.c
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*
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* This file is a part of LZMA compression module for NSIS.
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*
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* Original LZMA SDK Copyright (C) 1999-2006 Igor Pavlov
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* Modifications Copyright (C) 2003-2021 Amir Szekely <kichik@netvision.net.il>
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*
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* Licensed under the Common Public License version 1.0 (the "License");
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* you may not use this file except in compliance with the License.
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*
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* Licence details can be found in the file COPYING.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty.
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*
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* Reviewed for Unicode support by Jim Park -- 08/24/2007
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*/
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#ifndef __LZMADECODE_H
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#define __LZMADECODE_H
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/***********************
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* Configuration *
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***********************/
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#include "../Platform.h"
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/* #define _LZMA_PROB32 */
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/* It can increase speed on some 32-bit CPUs,
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but memory usage will be doubled in that case */
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#ifdef _WIN32
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# define lzmaalloc(bytes) GlobalAlloc(GPTR,bytes)
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# define lzmafree GlobalFree
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#endif
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/***********************
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* Configuration End *
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***********************/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef lzmaalloc
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#define lzmaalloc malloc
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#endif
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#ifndef lzmafree
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#define lzmafree free
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#endif
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#ifndef LZMACALL
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# define LZMACALL
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#endif
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#ifndef UInt32
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#ifdef _LZMA_UINT32_IS_ULONG
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#define UInt32 unsigned long
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#else
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#define UInt32 unsigned int
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#endif
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#endif
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#ifdef _LZMA_PROB32
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#define CProb UInt32
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#else
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#define CProb unsigned short
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#endif
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typedef unsigned char Byte;
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#define LZMA_STREAM_END 1
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#define LZMA_OK 0
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#define LZMA_DATA_ERROR -1
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/* we don't really care what the problem is... */
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/* #define LZMA_RESULT_NOT_ENOUGH_MEM -2 */
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#define LZMA_NOT_ENOUGH_MEM -1
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typedef struct
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{
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/* mode control */
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int mode;
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int last;
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int last2;
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int last3;
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/* properties */
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UInt32 dynamicDataSize;
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UInt32 dictionarySize;
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/* io */
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Byte *next_in; /* next input byte */
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UInt32 avail_in; /* number of bytes available at next_in */
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Byte *next_out; /* next output byte should be put there */
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UInt32 avail_out; /* remaining free space at next_out */
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UInt32 totalOut; /* total output - not always correct when lzmaDecode returns */
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/* saved state */
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Byte previousByte;
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Byte matchByte;
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CProb *probs;
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CProb *prob;
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int mi;
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int posState;
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int temp1;
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int temp2;
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int temp3;
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int lc;
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int state;
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int isPreviousMatch;
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int len;
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UInt32 rep0;
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UInt32 rep1;
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UInt32 rep2;
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UInt32 rep3;
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UInt32 posStateMask;
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UInt32 literalPosMask;
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UInt32 dictionaryPos;
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/* range coder */
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UInt32 range;
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UInt32 code;
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/* allocated buffers */
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Byte *dictionary;
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Byte *dynamicData;
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} lzma_stream;
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void LZMACALL lzmaInit(lzma_stream *);
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int LZMACALL lzmaDecode(lzma_stream *);
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#ifdef __cplusplus
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}
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#endif
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#endif
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