mirror of
https://github.com/alliedmodders/hl2sdk.git
synced 2024-12-23 01:59:43 +08:00
27 lines
641 B
C
27 lines
641 B
C
|
/* XzCrc64.h -- CRC64 calculation
|
||
|
|
2013-01-18 : Igor Pavlov : Public domain */
|
||
|
|
|
||
|
|
#ifndef __XZ_CRC64_H
|
||
|
|
#define __XZ_CRC64_H
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
|
||
|
|
#include "7zTypes.h"
|
||
|
|
|
||
|
|
EXTERN_C_BEGIN
|
||
|
|
|
||
|
|
extern UInt64 g_Crc64Table[];
|
||
|
|
|
||
|
|
void MY_FAST_CALL Crc64GenerateTable(void);
|
||
|
|
|
||
|
|
#define CRC64_INIT_VAL UINT64_CONST(0xFFFFFFFFFFFFFFFF)
|
||
|
|
#define CRC64_GET_DIGEST(crc) ((crc) ^ CRC64_INIT_VAL)
|
||
|
|
#define CRC64_UPDATE_BYTE(crc, b) (g_Crc64Table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
|
||
|
|
|
||
|
|
UInt64 MY_FAST_CALL Crc64Update(UInt64 crc, const void *data, size_t size);
|
||
|
|
UInt64 MY_FAST_CALL Crc64Calc(const void *data, size_t size);
|
||
|
|
|
||
|
|
EXTERN_C_END
|
||
|
|
|
||
|
|
#endif
|