Simone
d074cc7c07
Plugin: ns7zip v2.0.0 Architectures: x86-ansi, x86-unicode, amd64-unicode License: LGPL-2.1-or-later
62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
// ImplodeDecoder.h
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#ifndef ZIP7_INC_COMPRESS_IMPLODE_DECODER_H
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#define ZIP7_INC_COMPRESS_IMPLODE_DECODER_H
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#include "../../Common/MyCom.h"
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#include "../ICoder.h"
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#include "../Common/InBuffer.h"
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#include "BitlDecoder.h"
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#include "LzOutWindow.h"
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namespace NCompress {
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namespace NImplode {
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namespace NDecoder {
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typedef NBitl::CDecoder<CInBuffer> CInBit;
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const unsigned kNumHuffmanBits = 16;
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const unsigned kMaxHuffTableSize = 1 << 8;
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class CHuffmanDecoder
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{
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UInt32 _limits[kNumHuffmanBits + 1];
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UInt32 _poses[kNumHuffmanBits + 1];
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Byte _symbols[kMaxHuffTableSize];
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public:
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bool Build(const Byte *lens, unsigned numSymbols) throw();
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unsigned Decode(CInBit *inStream) const throw();
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};
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Z7_CLASS_IMP_NOQIB_4(
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CCoder
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, ICompressCoder
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, ICompressSetDecoderProperties2
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, ICompressSetFinishMode
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, ICompressGetInStreamProcessedSize
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)
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Byte _flags;
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bool _fullStreamMode;
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CLzOutWindow _outWindowStream;
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CInBit _inBitStream;
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CHuffmanDecoder _litDecoder;
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CHuffmanDecoder _lenDecoder;
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CHuffmanDecoder _distDecoder;
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bool BuildHuff(CHuffmanDecoder &table, unsigned numSymbols);
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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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public:
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CCoder();
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};
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}}}
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#endif
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