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1 // ImplodeDecoder.h
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2
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3 #ifndef __COMPRESS_IMPLODE_DECODER_H
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4 #define __COMPRESS_IMPLODE_DECODER_H
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5
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6 #include "../../Common/MyCom.h"
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7
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8 #include "../ICoder.h"
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9
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10 #include "ImplodeHuffmanDecoder.h"
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11 #include "LzOutWindow.h"
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12
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13 namespace NCompress {
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14 namespace NImplode {
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15 namespace NDecoder {
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16
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17 class CCoder:
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18 public ICompressCoder,
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19 public ICompressSetDecoderProperties2,
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20 public CMyUnknownImp
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21 {
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22 CLzOutWindow m_OutWindowStream;
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23 NBitl::CDecoder<CInBuffer> m_InBitStream;
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24
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25 NImplode::NHuffman::CDecoder m_LiteralDecoder;
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26 NImplode::NHuffman::CDecoder m_LengthDecoder;
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27 NImplode::NHuffman::CDecoder m_DistanceDecoder;
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28
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29 bool m_BigDictionaryOn;
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30 bool m_LiteralsOn;
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31
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32 int m_NumDistanceLowDirectBits;
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33 UInt32 m_MinMatchLength;
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34
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35 bool ReadLevelItems(NImplode::NHuffman::CDecoder &table, Byte *levels, int numLevelItems);
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36 bool ReadTables();
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37 void DeCodeLevelTable(Byte *newLevels, int numLevels);
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38 public:
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39 CCoder();
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40
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41 MY_UNKNOWN_IMP1(ICompressSetDecoderProperties2)
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42
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43 void ReleaseStreams();
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44 HRESULT Flush() { return m_OutWindowStream.Flush(); }
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45
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46 HRESULT CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream,
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47 const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
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48
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49 STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
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50 const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
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51
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52 STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size);
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53 };
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54
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55 }}}
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56
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57 #endif
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