Initialer Commit

CPP/7zip/Compress/PpmdDecoder.h

@@ -0,0 +1,78 @@
+// PpmdDecoder.h
+// 2009-03-11 : Igor Pavlov : Public domain
+
+#ifndef __COMPRESS_PPMD_DECODER_H
+#define __COMPRESS_PPMD_DECODER_H
+
+#include "../../../C/Ppmd7.h"
+
+#include "../../Common/MyCom.h"
+
+#include "../Common/CWrappers.h"
+
+#include "../ICoder.h"
+
+namespace NCompress {
+namespace NPpmd {
+
+class CDecoder :
+  public ICompressCoder,
+  public ICompressSetDecoderProperties2,
+  #ifndef NO_READ_FROM_CODER
+  public ICompressSetInStream,
+  public ICompressSetOutStreamSize,
+  public ISequentialInStream,
+  #endif
+  public CMyUnknownImp
+{
+  Byte *_outBuf;
+  CPpmd7z_RangeDec _rangeDec;
+  CByteInBufWrap _inStream;
+  CPpmd7 _ppmd;
+
+  Byte _order;
+  bool _outSizeDefined;
+  int _status;
+  UInt64 _outSize;
+  UInt64 _processedSize;
+
+  HRESULT CodeSpec(Byte *memStream, UInt32 size);
+
+public:
+
+  #ifndef NO_READ_FROM_CODER
+  CMyComPtr<ISequentialInStream> InSeqStream;
+  MY_UNKNOWN_IMP4(
+      ICompressSetDecoderProperties2,
+      ICompressSetInStream,
+      ICompressSetOutStreamSize,
+      ISequentialInStream)
+  #else
+  MY_UNKNOWN_IMP1(
+      ICompressSetDecoderProperties2)
+  #endif
+
+  STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
+      const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
+  STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size);
+  STDMETHOD(SetOutStreamSize)(const UInt64 *outSize);
+
+  #ifndef NO_READ_FROM_CODER
+  STDMETHOD(SetInStream)(ISequentialInStream *inStream);
+  STDMETHOD(ReleaseInStream)();
+  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+  #endif
+
+  CDecoder(): _outBuf(NULL), _outSizeDefined(false)
+  {
+    Ppmd7z_RangeDec_CreateVTable(&_rangeDec);
+    _rangeDec.Stream = &_inStream.p;
+    Ppmd7_Construct(&_ppmd);
+  }
+
+  ~CDecoder();
+};
+
+}}
+
+#endif