rlm@1: /* 7zCrc.h -- CRC32 calculation
rlm@1: 2008-03-13
rlm@1: Igor Pavlov
rlm@1: Public domain */
rlm@1: 
rlm@1: #ifndef __7Z_CRC_H
rlm@1: #define __7Z_CRC_H
rlm@1: 
rlm@1: #include <stddef.h>
rlm@1: 
rlm@1: #include "Types.h"
rlm@1: 
rlm@1: extern UInt32 g_CrcTable[];
rlm@1: 
rlm@1: void MY_FAST_CALL CrcGenerateTable(void);
rlm@1: 
rlm@1: #define CRC_INIT_VAL 0xFFFFFFFF
rlm@1: #define CRC_GET_DIGEST(crc) ((crc) ^ 0xFFFFFFFF)
rlm@1: #define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
rlm@1: 
rlm@1: UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);
rlm@1: UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);
rlm@1: 
rlm@1: #endif