repo sync | baa3858 | 2013-07-26 17:53:31 -0700 | [diff] [blame] | 1 | /* 7zCrc.h -- CRC32 calculation
|
| 2 | 2009-11-21 : Igor Pavlov : Public domain */
|
| 3 |
|
| 4 | #ifndef __7Z_CRC_H
|
| 5 | #define __7Z_CRC_H
|
| 6 |
|
| 7 | #include "Types.h"
|
| 8 |
|
| 9 | EXTERN_C_BEGIN
|
| 10 |
|
| 11 | extern UInt32 g_CrcTable[];
|
| 12 |
|
| 13 | /* Call CrcGenerateTable one time before other CRC functions */
|
| 14 | void MY_FAST_CALL CrcGenerateTable(void);
|
| 15 |
|
| 16 | #define CRC_INIT_VAL 0xFFFFFFFF
|
| 17 | #define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)
|
| 18 | #define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
|
| 19 |
|
| 20 | UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);
|
| 21 | UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);
|
| 22 |
|
| 23 | EXTERN_C_END
|
| 24 |
|
| 25 | #endif
|