mirror of
https://github.com/MacPaw/XADMaster.git
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40 lines
1.8 KiB
Objective-C
40 lines
1.8 KiB
Objective-C
/*
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* CRC.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 <Foundation/Foundation.h>
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uint32_t XADCRC(uint32_t prevcrc,uint8_t byte,const uint32_t *table);
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uint32_t XADCalculateCRC(uint32_t prevcrc,const uint8_t *buffer,int length,const uint32_t *table);
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// Version approximately 2x (up to 6x times) faster
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// This one expects 16x256 tables passed in at the moment only XADCRCTable_sliced16_edb88320 is pregenerated
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uint32_t XADCalculateCRCFast(uint32_t prevcrc,const uint8_t *buffer,int length, const uint32_t (*table)[256]);
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uint64_t XADCRC64(uint64_t prevcrc,uint8_t byte,const uint64_t *table);
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uint64_t XADCalculateCRC64(uint64_t prevcrc,const uint8_t *buffer,int length,const uint64_t *table);
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int XADUnReverseCRC16(int val);
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extern const uint32_t XADCRCTable_a001[256];
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extern const uint32_t XADCRCTable_sliced16_edb88320[16][256];
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extern const uint32_t XADCRCReverseTable_1021[256];
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extern const uint32_t XADCRCTable_usb[256];
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extern const uint32_t XADCRCTable_edb88320[256];
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extern const uint64_t XADCRCTable_c96c5795d7870f42[256];
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