diff options
Diffstat (limited to 'CPP/7zip/Compress/PpmdDecoder.h')
-rwxr-xr-x | CPP/7zip/Compress/PpmdDecoder.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/CPP/7zip/Compress/PpmdDecoder.h b/CPP/7zip/Compress/PpmdDecoder.h new file mode 100755 index 00000000..0d8817d4 --- /dev/null +++ b/CPP/7zip/Compress/PpmdDecoder.h @@ -0,0 +1,86 @@ +// PpmdDecoder.h + +#ifndef __COMPRESS_PPMD_DECODER_H +#define __COMPRESS_PPMD_DECODER_H + +#include "../../Common/MyCom.h" + +#include "../ICoder.h" + +#include "../Common/OutBuffer.h" + +#include "PpmdDecode.h" +#include "RangeCoder.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 +{ + CRangeDecoder _rangeDecoder; + + COutBuffer _outStream; + + CDecodeInfo _info; + + Byte _order; + UInt32 _usedMemorySize; + + int _remainLen; + UInt64 _outSize; + bool _outSizeDefined; + UInt64 _processedSize; + + HRESULT CodeSpec(UInt32 num, Byte *memStream); + +public: + + #ifndef NO_READ_FROM_CODER + MY_UNKNOWN_IMP4( + ICompressSetDecoderProperties2, + ICompressSetInStream, + ICompressSetOutStreamSize, + ISequentialInStream) + #else + MY_UNKNOWN_IMP1( + ICompressSetDecoderProperties2) + #endif + + void ReleaseStreams() + { + ReleaseInStream(); + _outStream.ReleaseStream(); + } + + HRESULT Flush() { return _outStream.Flush(); } + + STDMETHOD(CodeReal)(ISequentialInStream *inStream, ISequentialOutStream *outStream, + const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress); + + STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream, + const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress); + + STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size); + + STDMETHOD(SetInStream)(ISequentialInStream *inStream); + STDMETHOD(ReleaseInStream)(); + STDMETHOD(SetOutStreamSize)(const UInt64 *outSize); + + #ifndef NO_READ_FROM_CODER + STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize); + #endif + + CDecoder(): _outSizeDefined(false) {} +}; + +}} + +#endif |