| 1 | /* 7zCrc.h -- CRC32 calculation\r |
| 2 | 2013-01-18 : Igor Pavlov : Public domain */\r |
| 3 | \r |
| 4 | #ifndef __7Z_CRC_H\r |
| 5 | #define __7Z_CRC_H\r |
| 6 | \r |
| 7 | #include "7zTypes.h"\r |
| 8 | \r |
| 9 | EXTERN_C_BEGIN\r |
| 10 | \r |
| 11 | extern UInt32 g_CrcTable[];\r |
| 12 | \r |
| 13 | /* Call CrcGenerateTable one time before other CRC functions */\r |
| 14 | void MY_FAST_CALL CrcGenerateTable(void);\r |
| 15 | \r |
| 16 | #define CRC_INIT_VAL 0xFFFFFFFF\r |
| 17 | #define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)\r |
| 18 | #define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))\r |
| 19 | \r |
| 20 | UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);\r |
| 21 | UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);\r |
| 22 | \r |
| 23 | EXTERN_C_END\r |
| 24 | \r |
| 25 | #endif\r |