mirror of https://gitee.com/openkylin/nodejs.git
37 lines
1009 B
C
37 lines
1009 B
C
/* crc32_simd.h
|
|
*
|
|
* Copyright 2017 The Chromium Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the Chromium source repository LICENSE file.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "zconf.h"
|
|
#include "zutil.h"
|
|
#include "deflate.h"
|
|
|
|
/*
|
|
* crc32_sse42_simd_(): compute the crc32 of the buffer, where the buffer
|
|
* length must be at least 64, and a multiple of 16.
|
|
*/
|
|
uint32_t ZLIB_INTERNAL crc32_sse42_simd_(
|
|
const unsigned char *buf,
|
|
z_size_t len,
|
|
uint32_t crc);
|
|
|
|
/*
|
|
* crc32_sse42_simd_ buffer size constraints: see the use in zlib/crc32.c
|
|
* for computing the crc32 of an arbitrary length buffer.
|
|
*/
|
|
#define Z_CRC32_SSE42_MINIMUM_LENGTH 64
|
|
#define Z_CRC32_SSE42_CHUNKSIZE_MASK 15
|
|
|
|
/*
|
|
* CRC32 checksums using ARMv8-a crypto instructions.
|
|
*/
|
|
uint32_t ZLIB_INTERNAL armv8_crc32_little(unsigned long crc,
|
|
const unsigned char* buf,
|
|
z_size_t len);
|
|
|