3.13

7zip/Compress/Implode/ImplodeDecoder.h

@@ -0,0 +1,77 @@
+// ImplodeDecoder.h
+
+#ifndef __IMPLODE_DECODER_H
+#define __IMPLODE_DECODER_H
+
+#pragma once
+
+#include "Common/MyCom.h"
+
+#include "../../ICoder.h"
+#include "../LZ/LZOutWindow.h"
+
+#include "ImplodeHuffmanDecoder.h"
+
+namespace NCompress {
+namespace NImplode {
+namespace NDecoder {
+
+class CException
+{
+public:
+  enum ECauseType
+  {
+    kData
+  } m_Cause;
+  CException(ECauseType cause): m_Cause(cause) {}
+};
+
+class CCoder :
+  public ICompressCoder,
+  public ICompressSetDecoderProperties,
+  public CMyUnknownImp
+{
+  CLZOutWindow m_OutWindowStream;
+  NStream::NLSBF::CDecoder<CInBuffer> m_InBitStream;
+  
+  NImplode::NHuffman::CDecoder m_LiteralDecoder;
+  NImplode::NHuffman::CDecoder m_LengthDecoder;
+  NImplode::NHuffman::CDecoder m_DistanceDecoder;
+
+
+  bool m_BigDictionaryOn;
+  bool m_LiteralsOn;
+
+  int m_NumDistanceLowDirectBits; 
+  UINT32 m_MinMatchLength;
+
+  void ReadLevelItems(NImplode::NHuffman::CDecoder &table, 
+      BYTE *levels, int numLevelItems);
+  void ReadTables();
+  void DeCodeLevelTable(BYTE *newLevels, int numLevels);
+public:
+  CCoder();
+
+  MY_UNKNOWN_IMP1(ICompressSetDecoderProperties)
+
+  // STDMETHOD(ReleaseStreams)();
+  // STDMETHOD(Code)(UINT32 aSize, UINT32 &aProcessedSize);
+  HRESULT (Flush)() { return m_OutWindowStream.Flush(); }
+
+
+  STDMETHOD(CodeReal)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  STDMETHOD(Code)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  // ICompressSetDecoderProperties
+  // STDMETHOD(SetCoderProperties)(PROPVARIANT *aProperties, UINT32 aNumProperties);
+  STDMETHOD(SetDecoderProperties)(ISequentialInStream *inStream);
+};
+
+}}}
+
+#endif