1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/win32/7zip/7z/CPP/7zip/Compress/Rar1Decoder.h	Sat Mar 03 10:31:27 2012 -0600
     1.3 @@ -0,0 +1,88 @@
     1.4 +// Rar1Decoder.h
     1.5 +// According to unRAR license, this code may not be used to develop
     1.6 +// a program that creates RAR archives
     1.7 +
     1.8 +#ifndef __COMPRESS_RAR1_DECODER_H
     1.9 +#define __COMPRESS_RAR1_DECODER_H
    1.10 +
    1.11 +#include "../../Common/MyCom.h"
    1.12 +
    1.13 +#include "../ICoder.h"
    1.14 +
    1.15 +#include "../Common/InBuffer.h"
    1.16 +
    1.17 +#include "BitmDecoder.h"
    1.18 +#include "HuffmanDecoder.h"
    1.19 +#include "LzOutWindow.h"
    1.20 +
    1.21 +namespace NCompress {
    1.22 +namespace NRar1 {
    1.23 +
    1.24 +const UInt32 kNumRepDists = 4;
    1.25 +
    1.26 +typedef NBitm::CDecoder<CInBuffer> CBitDecoder;
    1.27 +
    1.28 +class CDecoder :
    1.29 +  public ICompressCoder,
    1.30 +  public ICompressSetDecoderProperties2,
    1.31 +  public CMyUnknownImp
    1.32 +{
    1.33 +public:
    1.34 +  CLzOutWindow m_OutWindowStream;
    1.35 +  CBitDecoder m_InBitStream;
    1.36 +
    1.37 +  UInt32 m_RepDists[kNumRepDists];
    1.38 +  UInt32 m_RepDistPtr;
    1.39 +
    1.40 +  UInt32 LastDist;
    1.41 +  UInt32 LastLength;
    1.42 +
    1.43 +  Int64 m_UnpackSize;
    1.44 +  bool m_IsSolid;
    1.45 +
    1.46 +  UInt32 ReadBits(int numBits);
    1.47 +  HRESULT CopyBlock(UInt32 distance, UInt32 len);
    1.48 +
    1.49 +  UInt32 DecodeNum(const UInt32 *posTab);
    1.50 +  HRESULT ShortLZ();
    1.51 +  HRESULT LongLZ();
    1.52 +  HRESULT HuffDecode();
    1.53 +  void GetFlagsBuf();
    1.54 +  void InitData();
    1.55 +  void InitHuff();
    1.56 +  void CorrHuff(UInt32 *CharSet, UInt32 *NumToPlace);
    1.57 +  void OldUnpWriteBuf();
    1.58 +  
    1.59 +  UInt32 ChSet[256],ChSetA[256],ChSetB[256],ChSetC[256];
    1.60 +  UInt32 Place[256],PlaceA[256],PlaceB[256],PlaceC[256];
    1.61 +  UInt32 NToPl[256],NToPlB[256],NToPlC[256];
    1.62 +  UInt32 FlagBuf,AvrPlc,AvrPlcB,AvrLn1,AvrLn2,AvrLn3;
    1.63 +  int Buf60,NumHuf,StMode,LCount,FlagsCnt;
    1.64 +  UInt32 Nhfb,Nlzb,MaxDist3;
    1.65 +
    1.66 +  void InitStructures();
    1.67 +
    1.68 +  HRESULT CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream,
    1.69 +      const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
    1.70 +
    1.71 +public:
    1.72 +  CDecoder();
    1.73 +
    1.74 +  MY_UNKNOWN_IMP1(ICompressSetDecoderProperties2)
    1.75 +
    1.76 +  void ReleaseStreams()
    1.77 +  {
    1.78 +    m_OutWindowStream.ReleaseStream();
    1.79 +    m_InBitStream.ReleaseStream();
    1.80 +  }
    1.81 +
    1.82 +  STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
    1.83 +      const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
    1.84 +
    1.85 +  STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size);
    1.86 +
    1.87 +};
    1.88 +
    1.89 +}}
    1.90 +
    1.91 +#endif