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50 lines
1.1 KiB
C++
Executable File
50 lines
1.1 KiB
C++
Executable File
// ZDecoder.h
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#ifndef ZIP7_INC_COMPRESS_Z_DECODER_H
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#define ZIP7_INC_COMPRESS_Z_DECODER_H
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#include "../../Common/MyCom.h"
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#include "../ICoder.h"
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namespace NCompress {
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namespace NZ {
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// Z decoder decodes Z data stream, including 3 bytes of header.
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Z7_CLASS_IMP_COM_1(
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CDecoder
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, ICompressCoder
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)
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UInt16 *_parents;
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Byte *_suffixes;
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Byte *_stack;
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unsigned _numMaxBits;
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public:
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CDecoder(): _parents(NULL), _suffixes(NULL), _stack(NULL), /* _prop(0), */ _numMaxBits(0) {}
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~CDecoder();
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void Free();
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UInt64 PackSize;
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HRESULT CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream,
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const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
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};
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/*
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There is no end_of_payload_marker in Z stream.
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Z decoder stops decoding, if it reaches end of input stream.
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CheckStream function:
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(size) must be at least 3 bytes (size of Z header).
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if (size) is larger than size of real Z stream in (data), CheckStream can return false.
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*/
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const unsigned kRecommendedCheckSize = 64;
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bool CheckStream(const Byte *data, size_t size);
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}}
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#endif
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