4.63

CPP/7zip/Compress/Bcj2Coder.h

@@ -0,0 +1,125 @@
+// Bcj2Coder.h
+
+#ifndef __COMPRESS_BCJ2_CODER_H
+#define __COMPRESS_BCJ2_CODER_H
+
+#include "../../Common/MyCom.h"
+
+#include "../ICoder.h"
+
+#include "RangeCoderBit.h"
+
+namespace NCompress {
+namespace NBcj2 {
+
+const int kNumMoveBits = 5;
+
+#ifndef EXTRACT_ONLY
+
+class CEncoder:
+  public ICompressCoder2,
+  public CMyUnknownImp
+{
+  Byte *_buffer;
+public:
+  CEncoder(): _buffer(0) {};
+  ~CEncoder();
+  bool Create();
+
+  COutBuffer _mainStream;
+  COutBuffer _callStream;
+  COutBuffer _jumpStream;
+  NCompress::NRangeCoder::CEncoder _rangeEncoder;
+  NCompress::NRangeCoder::CBitEncoder<kNumMoveBits> _statusEncoder[256 + 2];
+
+  HRESULT Flush();
+  void ReleaseStreams()
+  {
+    _mainStream.ReleaseStream();
+    _callStream.ReleaseStream();
+    _jumpStream.ReleaseStream();
+    _rangeEncoder.ReleaseStream();
+  }
+
+  class CCoderReleaser
+  {
+    CEncoder *_coder;
+  public:
+    CCoderReleaser(CEncoder *coder): _coder(coder) {}
+    ~CCoderReleaser() {  _coder->ReleaseStreams(); }
+  };
+
+public:
+
+  MY_UNKNOWN_IMP
+
+  HRESULT CodeReal(ISequentialInStream **inStreams,
+      const UInt64 **inSizes,
+      UInt32 numInStreams,
+      ISequentialOutStream **outStreams,
+      const UInt64 **outSizes,
+      UInt32 numOutStreams,
+      ICompressProgressInfo *progress);
+  STDMETHOD(Code)(ISequentialInStream **inStreams,
+      const UInt64 **inSizes,
+      UInt32 numInStreams,
+      ISequentialOutStream **outStreams,
+      const UInt64 **outSizes,
+      UInt32 numOutStreams,
+      ICompressProgressInfo *progress);
+};
+
+#endif
+
+class CDecoder:
+  public ICompressCoder2,
+  public CMyUnknownImp
+{
+public:
+  CInBuffer _mainInStream;
+  CInBuffer _callStream;
+  CInBuffer _jumpStream;
+  NCompress::NRangeCoder::CDecoder _rangeDecoder;
+  NCompress::NRangeCoder::CBitDecoder<kNumMoveBits> _statusDecoder[256 + 2];
+
+  COutBuffer _outStream;
+
+  void ReleaseStreams()
+  {
+    _mainInStream.ReleaseStream();
+    _callStream.ReleaseStream();
+    _jumpStream.ReleaseStream();
+    _rangeDecoder.ReleaseStream();
+    _outStream.ReleaseStream();
+  }
+
+  HRESULT Flush() { return _outStream.Flush(); }
+  class CCoderReleaser
+  {
+    CDecoder *_coder;
+  public:
+    CCoderReleaser(CDecoder *coder): _coder(coder) {}
+    ~CCoderReleaser()  { _coder->ReleaseStreams(); }
+  };
+
+public:
+  MY_UNKNOWN_IMP
+  HRESULT CodeReal(ISequentialInStream **inStreams,
+      const UInt64 **inSizes,
+      UInt32 numInStreams,
+      ISequentialOutStream **outStreams,
+      const UInt64 **outSizes,
+      UInt32 numOutStreams,
+      ICompressProgressInfo *progress);
+  STDMETHOD(Code)(ISequentialInStream **inStreams,
+      const UInt64 **inSizes,
+      UInt32 numInStreams,
+      ISequentialOutStream **outStreams,
+      const UInt64 **outSizes,
+      UInt32 numOutStreams,
+      ICompressProgressInfo *progress);
+};
+
+}}
+
+#endif