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