mirror of
https://github.com/ZDoom/Raze.git
synced 2024-11-25 21:41:55 +00:00
27 lines
726 B
C
27 lines
726 B
C
/* 7zCrc.h -- CRC32 calculation
|
|
2023-04-02 : Igor Pavlov : Public domain */
|
|
|
|
#ifndef ZIP7_INC_7Z_CRC_H
|
|
#define ZIP7_INC_7Z_CRC_H
|
|
|
|
#include "7zTypes.h"
|
|
|
|
EXTERN_C_BEGIN
|
|
|
|
extern UInt32 g_CrcTable[];
|
|
|
|
/* Call CrcGenerateTable one time before other CRC functions */
|
|
void Z7_FASTCALL CrcGenerateTable(void);
|
|
|
|
#define CRC_INIT_VAL 0xFFFFFFFF
|
|
#define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)
|
|
#define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
|
|
|
|
UInt32 Z7_FASTCALL CrcUpdate(UInt32 crc, const void *data, size_t size);
|
|
UInt32 Z7_FASTCALL CrcCalc(const void *data, size_t size);
|
|
|
|
typedef UInt32 (Z7_FASTCALL *CRC_FUNC)(UInt32 v, const void *data, size_t size, const UInt32 *table);
|
|
|
|
EXTERN_C_END
|
|
|
|
#endif
|