/* +----------------------------------------------------------------------+ | 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 | +----------------------------------------------------------------------+ */ #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; #ifdef ZEND_INTRIN_SSE4_2_PCLMUL_FUNC_PTR PHP_MINIT_FUNCTION(crc32_x86_intrin); #endif #if defined(ZEND_INTRIN_SSE4_2_PCLMUL_NATIVE) || defined(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