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49 lines
1.4 KiB
Objective-C
49 lines
1.4 KiB
Objective-C
/*
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* XADARCCrunchHandle.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 "CSByteStreamHandle.h"
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typedef struct XADARCCrunchEntry
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{
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BOOL used;
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uint8_t byte;
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int next;
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int parent;
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} XADARCCrunchEntry;
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@interface XADARCCrunchHandle:CSByteStreamHandle
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{
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BOOL fast;
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int numfreecodes,sp,lastcode;
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uint8_t lastbyte;
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XADARCCrunchEntry table[4096];
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uint8_t stack[4096];
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}
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-(id)initWithHandle:(CSHandle *)handle useFastHash:(BOOL)usefast;
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-(id)initWithHandle:(CSHandle *)handle length:(off_t)length useFastHash:(BOOL)usefast;
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-(void)resetByteStream;
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-(uint8_t)produceByteAtOffset:(off_t)pos;
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-(void)updateTableWithParent:(int)parentcode byteValue:(int)byte;
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@end
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