4.44 beta

2025-12-14 02:11:40 -06:00 · 2007-01-20 00:00:00 +00:00
parent 804edc5756
commit d9666cf046
1331 changed files with 10535 additions and 13791 deletions
--- a/CPP/7zip/Compress/Deflate/DeflateDecoder.h
+++ b/CPP/7zip/Compress/Deflate/DeflateDecoder.h
@@ -0,0 +1,134 @@
+// DeflateDecoder.h
+
+#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 "DeflateConst.h"
+
+namespace NCompress {
+namespace NDeflate {
+namespace NDecoder {
+
+class CCoder:
+  public ICompressCoder,
+  public ICompressGetInStreamProcessedSize,
+  #ifdef _ST_MODE
+  public ICompressSetInStream,
+  public ICompressSetOutStreamSize,
+  public ISequentialInStream,
+  #endif
+  public CMyUnknownImp
+{
+  CLZOutWindow m_OutWindowStream;
+  NStream::NLSBF::CDecoder<CInBuffer> m_InBitStream;
+  NCompress::NHuffman::CDecoder<kNumHuffmanBits, kFixedMainTableSize> m_MainDecoder;
+  NCompress::NHuffman::CDecoder<kNumHuffmanBits, kFixedDistTableSize> m_DistDecoder;
+  NCompress::NHuffman::CDecoder<kNumHuffmanBits, kLevelTableSize> m_LevelDecoder;
+
+  UInt32 m_StoredBlockSize;
+
+  bool m_FinalBlock;
+  bool m_StoredMode;
+  UInt32 _numDistLevels;
+
+
+  bool _deflateNSIS;
+  bool _deflate64Mode;
+  bool _keepHistory;
+  Int32 _remainLen;
+  UInt32 _rep0;
+  bool _needReadTable;
+
+  UInt32 ReadBits(int numBits);
+
+  bool DeCodeLevelTable(Byte *values, int numSymbols);
+  bool ReadTables();
+  
+  void ReleaseStreams()
+  {
+    m_OutWindowStream.ReleaseStream();
+    ReleaseInStream();
+  }
+
+  HRESULT Flush() { return m_OutWindowStream.Flush(); }
+  class CCoderReleaser
+  {
+    CCoder *m_Coder;
+  public:
+    bool NeedFlush;
+    CCoderReleaser(CCoder *coder): m_Coder(coder), NeedFlush(true) {}
+    ~CCoderReleaser()
+    {
+      if (NeedFlush)
+        m_Coder->Flush();
+      m_Coder->ReleaseStreams();
+    }
+  };
+  friend class CCoderReleaser;
+
+  HRESULT CodeSpec(UInt32 curSize);
+public:
+  CCoder(bool deflate64Mode, bool deflateNSIS = false);
+  void SetKeepHistory(bool keepHistory) { _keepHistory = keepHistory; }
+
+  HRESULT CodeReal(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
+      ICompressProgressInfo *progress);
+
+  #ifdef _ST_MODE
+  MY_UNKNOWN_IMP4(
+      ICompressGetInStreamProcessedSize,
+      ICompressSetInStream, 
+      ICompressSetOutStreamSize,
+      ISequentialInStream
+      )
+  #else
+  MY_UNKNOWN_IMP1(
+      ICompressGetInStreamProcessedSize)
+  #endif
+
+  STDMETHOD(Code)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
+      ICompressProgressInfo *progress);
+
+  STDMETHOD(SetInStream)(ISequentialInStream *inStream);
+  STDMETHOD(ReleaseInStream)();
+  STDMETHOD(SetOutStreamSize)(const UInt64 *outSize);
+  
+  #ifdef _ST_MODE
+  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+  #endif
+
+  // IGetInStreamProcessedSize
+  STDMETHOD(GetInStreamProcessedSize)(UInt64 *value);
+};
+
+class CCOMCoder : public CCoder
+{
+public:
+  CCOMCoder(): CCoder(false) {}
+};
+
+class CNsisCOMCoder : public CCoder
+{
+public:
+  CNsisCOMCoder(): CCoder(false, true) {}
+};
+
+class CCOMCoder64 : public CCoder
+{
+public:
+  CCOMCoder64(): CCoder(true) {}
+};
+
+}}}
+
+#endif