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83 lines
2.8 KiB
83 lines
2.8 KiB
3 years ago
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/*
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Copyright (C) 2002 Andrea Mazzoleni ( http://advancemame.sf.net )
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Copyright (C) 2001-4 Igor Pavlov ( http://www.7-zip.org )
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License version 2.1 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __LZARITHMETIC_DECODER_H
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#define __LZARITHMETIC_DECODER_H
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#include "winout.h"
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#include "lzma.h"
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#include "lencoder.h"
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#include "litcoder.h"
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namespace NCompress {
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namespace NLZMA {
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typedef CMyBitDecoder<kNumMoveBitsForMainChoice> CMyBitDecoder2;
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class CDecoder
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{
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NStream::NWindow::COut m_OutWindowStream;
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CMyRangeDecoder m_RangeDecoder;
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CMyBitDecoder2 m_MainChoiceDecoders[kNumStates][NLength::kNumPosStatesMax];
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CMyBitDecoder2 m_MatchChoiceDecoders[kNumStates];
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CMyBitDecoder2 m_MatchRepChoiceDecoders[kNumStates];
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CMyBitDecoder2 m_MatchRep1ChoiceDecoders[kNumStates];
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CMyBitDecoder2 m_MatchRep2ChoiceDecoders[kNumStates];
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CMyBitDecoder2 m_MatchRepShortChoiceDecoders[kNumStates][NLength::kNumPosStatesMax];
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CBitTreeDecoder<kNumMoveBitsForPosSlotCoder, kNumPosSlotBits> m_PosSlotDecoder[kNumLenToPosStates];
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CReverseBitTreeDecoder2<kNumMoveBitsForPosCoders> m_PosDecoders[kNumPosModels];
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CReverseBitTreeDecoder<kNumMoveBitsForAlignCoders, kNumAlignBits> m_PosAlignDecoder;
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// CBitTreeDecoder2<kNumMoveBitsForPosCoders> m_PosDecoders[kNumPosModels];
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// CBitTreeDecoder<kNumMoveBitsForAlignCoders, kNumAlignBits> m_PosAlignDecoder;
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NLength::CDecoder m_LenDecoder;
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NLength::CDecoder m_RepMatchLenDecoder;
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NLiteral::CDecoder m_LiteralDecoder;
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UINT32 m_DictionarySize;
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UINT32 m_PosStateMask;
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HRESULT Create();
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HRESULT Init(ISequentialInStream *anInStream, ISequentialOutStream *anOutStream);
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HRESULT Flush() { return m_OutWindowStream.Flush(); }
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HRESULT CodeReal(ISequentialInStream *anInStream, ISequentialOutStream *anOutStream, const UINT64 *anInSize, const UINT64 *anOutSize);
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public:
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CDecoder();
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HRESULT Code(ISequentialInStream *anInStream, ISequentialOutStream *anOutStream, const UINT64 *anInSize, const UINT64 *anOutSize);
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HRESULT ReadCoderProperties(ISequentialInStream *anInStream);
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HRESULT SetDictionarySize(UINT32 aDictionarySize);
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HRESULT SetLiteralProperties(UINT32 aLiteralPosStateBits, UINT32 aLiteralContextBits);
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HRESULT SetPosBitsProperties(UINT32 aNumPosStateBits);
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};
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}}
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#endif
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