Viewing file:  crc32_x86.h (1.82 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Frank Du <frank.du@intel.com> |
+----------------------------------------------------------------------+
*/
#ifndef _CRC32_X86_HEADER_H_
#define _CRC32_X86_HEADER_H_
#include "php.h"
typedef enum {
/* polynomial: 0x04C11DB7, used by bzip */
X86_CRC32 = 0,
/*
polynomial: 0x04C11DB7 with reversed ordering,
used by ethernet (IEEE 802.3), gzip, zip, png, etc
*/
X86_CRC32B,
/*
polynomial: 0x1EDC6F41 with reversed ordering,
used by iSCSI, SCTP, Btrfs, ext4, etc
*/
X86_CRC32C,
X86_CRC32_MAX,
} X86_CRC32_TYPE;
#if ZEND_INTRIN_SSE4_2_PCLMUL_FUNC_PTR
PHP_MINIT_FUNCTION(crc32_x86_intrin);
#endif
#if ZEND_INTRIN_SSE4_2_PCLMUL_NATIVE || ZEND_INTRIN_SSE4_2_PCLMUL_RESOLVER
/* Return the size processed by SIMD routine */
size_t crc32_x86_simd_update(X86_CRC32_TYPE type, uint32_t *crc, const unsigned char *p, size_t nr);
#else
static inline size_t crc32_x86_simd_update(X86_CRC32_TYPE type, uint32_t *crc, const unsigned char *p, size_t nr)
{
return 0;
}
#endif
#endif
|