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61 lines
1.7 KiB
Objective-C
61 lines
1.7 KiB
Objective-C
/*
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* XADQuantumHandle.h
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*
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* Copyright (c) 2017-present, MacPaw Inc. All rights reserved.
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*
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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 as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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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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*
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#import "XADCABBlockHandle.h"
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#import "LZSS.h"
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typedef struct QuantumCoder
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{
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uint16_t CS_L,CS_H,CS_C;
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CSInputBuffer *input;
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} QuantumCoder;
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typedef struct QuantumModelSymbol
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{
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uint16_t symbol;
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uint16_t cumfreq;
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} QuantumModelSymbol;
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typedef struct QuantumModel
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{
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int numsymbols,shiftsleft;
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QuantumModelSymbol symbols[65];
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} QuantumModel;
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@interface XADQuantumHandle:XADCABBlockHandle
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{
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LZSS lzss;
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int numslots4,numslots5,numslots6;
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QuantumCoder coder;
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QuantumModel selectormodel;
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QuantumModel literalmodel[4];
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QuantumModel offsetmodel4,offsetmodel5,offsetmodel6;
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QuantumModel lengthmodel6;
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}
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-(id)initWithBlockReader:(XADCABBlockReader *)blockreader windowBits:(int)windowbits;
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-(void)resetCABBlockHandle;
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-(int)produceCABBlockWithInputBuffer:(uint8_t *)buffer length:(int)length atOffset:(off_t)pos length:(int)uncomplength;
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@end
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