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127 lines
2.9 KiB
C++
Executable File
127 lines
2.9 KiB
C++
Executable File
// DeflateDecoder.h
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#ifndef __DEFLATE_DECODER_H
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#define __DEFLATE_DECODER_H
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#include "../../../Common/MyCom.h"
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#include "../../ICoder.h"
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#include "../../Common/LSBFDecoder.h"
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#include "../../Common/InBuffer.h"
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#include "../LZ/LZOutWindow.h"
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#include "../Huffman/HuffmanDecoder.h"
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#include "DeflateExtConst.h"
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#include "DeflateConst.h"
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namespace NCompress {
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namespace NDeflate {
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namespace NDecoder {
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class CException
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{
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public:
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enum ECauseType
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{
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kData
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} m_Cause;
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CException(ECauseType aCause): m_Cause(aCause) {}
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};
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typedef NStream::NLSBF::CDecoder<CInBuffer> CInBit;
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class CCoder
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{
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CLZOutWindow m_OutWindowStream;
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CInBit m_InBitStream;
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NCompress::NHuffman::CDecoder<kNumHuffmanBits, kStaticMainTableSize> m_MainDecoder;
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NCompress::NHuffman::CDecoder<kNumHuffmanBits, kStaticDistTableSize> m_DistDecoder;
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NCompress::NHuffman::CDecoder<kNumHuffmanBits, kLevelTableSize> m_LevelDecoder;
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bool m_FinalBlock;
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bool m_StoredMode;
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UInt32 m_StoredBlockSize;
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bool _deflate64Mode;
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void DeCodeLevelTable(Byte *newLevels, int numLevels);
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void ReadTables();
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void CCoder::ReleaseStreams()
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{
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m_OutWindowStream.ReleaseStream();
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m_InBitStream.ReleaseStream();
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}
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class CCoderReleaser
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{
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CCoder *m_Coder;
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public:
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bool NeedFlush;
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CCoderReleaser(CCoder *coder): m_Coder(coder), NeedFlush(true) {}
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~CCoderReleaser()
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{
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if (NeedFlush)
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m_Coder->m_OutWindowStream.Flush();
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m_Coder->ReleaseStreams();
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}
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};
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friend class CCoderReleaser;
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public:
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CCoder(bool deflate64Mode = false);
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HRESULT CodeReal(ISequentialInStream *inStream,
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ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
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ICompressProgressInfo *progress);
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HRESULT BaseCode(ISequentialInStream *inStream,
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ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
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ICompressProgressInfo *progress);
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// IGetInStreamProcessedSize
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HRESULT BaseGetInStreamProcessedSize(UInt64 *aValue);
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};
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class CCOMCoder :
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public ICompressCoder,
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public ICompressGetInStreamProcessedSize,
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public CMyUnknownImp,
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public CCoder
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{
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public:
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MY_UNKNOWN_IMP1(ICompressGetInStreamProcessedSize)
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STDMETHOD(Code)(ISequentialInStream *inStream,
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ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
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ICompressProgressInfo *progress);
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// IGetInStreamProcessedSize
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STDMETHOD(GetInStreamProcessedSize)(UInt64 *aValue);
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CCOMCoder(): CCoder(false) {}
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};
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class CCOMCoder64 :
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public ICompressCoder,
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public ICompressGetInStreamProcessedSize,
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public CMyUnknownImp,
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public CCoder
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{
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public:
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MY_UNKNOWN_IMP1(ICompressGetInStreamProcessedSize)
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STDMETHOD(Code)(ISequentialInStream *inStream,
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ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
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ICompressProgressInfo *progress);
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// IGetInStreamProcessedSize
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STDMETHOD(GetInStreamProcessedSize)(UInt64 *aValue);
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CCOMCoder64(): CCoder(true) {}
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};
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}}}
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#endif
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