quakespasm/Quake/crc.h

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/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2009 John Fitzgibbons and others
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _QUAKE_CRC_H
#define _QUAKE_CRC_H
/* crc.h */
void CRC_Init(unsigned short *crcvalue);
void CRC_ProcessByte(unsigned short *crcvalue, byte data);
unsigned short CRC_Value(unsigned short crcvalue);
unsigned short CRC_Block (const byte *start, size_t count); //johnfitz -- texture crc
//additional hash functions...
unsigned Com_BlockChecksum (void *buffer, size_t length);
void Com_BlockFullChecksum (void *buffer, size_t len, unsigned char *outbuf);
#endif /* _QUAKE_CRC_H */