3.13

2025-12-14 08:11:35 -06:00 · 2003-12-11 00:00:00 +00:00
commit 8c1b5c7b7e
982 changed files with 118799 additions and 0 deletions
--- a/7zip/Compress/Deflate/DeflateDecoder.h
+++ b/7zip/Compress/Deflate/DeflateDecoder.h
@@ -0,0 +1,128 @@
+// DeflateDecoder.h
+
+#pragma once
+
+#ifndef __DEFLATE_DECODER_H
+#define __DEFLATE_DECODER_H
+
+#include "Common/MyCom.h"
+
+#include "../../ICoder.h"
+#include "../../Common/LSBFDecoder.h"
+#include "../../Common/InBuffer.h"
+#include "../LZ/LZOutWindow.h"
+#include "../Huffman/HuffmanDecoder.h"
+
+#include "DeflateExtConst.h"
+
+namespace NCompress {
+namespace NDeflate {
+namespace NDecoder {
+
+class CException
+{
+public:
+  enum ECauseType
+  {
+    kData
+  } m_Cause;
+  CException(ECauseType aCause): m_Cause(aCause) {}
+};
+
+typedef NStream::NLSBF::CDecoder<CInBuffer> CInBit;
+typedef NCompress::NHuffman::CDecoder<kNumHuffmanBits> CHuffmanDecoder;
+
+class CCoder
+{
+  CLZOutWindow m_OutWindowStream;
+  CInBit m_InBitStream;
+  CHuffmanDecoder m_MainDecoder;
+  CHuffmanDecoder m_DistDecoder;
+  CHuffmanDecoder m_LevelDecoder; // table for decoding other tables;
+
+  bool m_FinalBlock;
+  bool m_StoredMode;
+  UINT32 m_StoredBlockSize;
+
+  bool _deflate64Mode;
+
+  void DeCodeLevelTable(BYTE *newLevels, int numLevels);
+  void ReadTables();
+  
+  /*
+  void CCoder::ReleaseStreams()
+  {
+    m_OutWindowStream.ReleaseStream();
+    m_InBitStream.ReleaseStream();
+  }
+  class CCoderReleaser
+  {
+    CCoder *m_Coder;
+  public:
+    CCoderReleaser(CCoder *coder): m_Coder(coder) {}
+    ~CCoderReleaser()
+    {
+      m_Coder->m_OutWindowStream.Flush();
+      m_Coder->ReleaseStreams();
+    }
+  };
+  friend class CCoderReleaser;
+  */
+
+public:
+  CCoder(bool deflate64Mode = false);
+
+  HRESULT CodeReal(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  HRESULT BaseCode(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  // IGetInStreamProcessedSize
+  HRESULT BaseGetInStreamProcessedSize(UINT64 *aValue);
+};
+
+class CCOMCoder :
+  public ICompressCoder,
+  public ICompressGetInStreamProcessedSize,
+  public CMyUnknownImp,
+  public CCoder
+{
+public:
+
+  MY_UNKNOWN_IMP1(ICompressGetInStreamProcessedSize)
+
+  STDMETHOD(Code)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  // IGetInStreamProcessedSize
+  STDMETHOD(GetInStreamProcessedSize)(UINT64 *aValue);
+
+  CCOMCoder(): CCoder(false) {}
+};
+
+class CCOMCoder64 :
+  public ICompressCoder,
+  public ICompressGetInStreamProcessedSize,
+  public CMyUnknownImp,
+  public CCoder
+{
+public:
+  MY_UNKNOWN_IMP1(ICompressGetInStreamProcessedSize)
+
+  STDMETHOD(Code)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  // IGetInStreamProcessedSize
+  STDMETHOD(GetInStreamProcessedSize)(UINT64 *aValue);
+
+  CCOMCoder64(): CCoder(true) {}
+};
+
+}}}
+
+#endif