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// 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
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