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qzdoom/lzma/C/7zCrc.h
Randy Heit 7e7429e3d2 - Added support for 7z archives.
SVN r1545 (trunk)
2009-04-15 03:58:10 +00:00

24 lines
555 B
C

/* 7zCrc.h -- CRC32 calculation
2008-03-13
Igor Pavlov
Public domain */
#ifndef __7Z_CRC_H
#define __7Z_CRC_H
#include <stddef.h>
#include "Types.h"
extern UInt32 g_CrcTable[];
void MY_FAST_CALL CrcGenerateTable(void);
#define CRC_INIT_VAL 0xFFFFFFFF
#define CRC_GET_DIGEST(crc) ((crc) ^ 0xFFFFFFFF)
#define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);
UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);
#endif