Quelle  compare_row.h

/*
 *  Copyright 2013 The LibYuv Project Authors. All rights reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS. All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#ifndef INCLUDE_LIBYUV_COMPARE_ROW_H_
#define INCLUDE_LIBYUV_COMPARE_ROW_H_

#include "libyuv/basic_types.h"
#include "libyuv/cpu_support.h"

#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif

// The following are available for Visual C and GCC:
#if !defined(LIBYUV_DISABLE_X86) &&                             \
    ((defined(__x86_64__) && !defined(LIBYUV_ENABLE_ROWWIN)) || \
     defined(__i386__) || defined(_M_IX86))
#define HAS_HASHDJB2_SSE41
#define HAS_SUMSQUAREERROR_SSE2
#define HAS_HAMMINGDISTANCE_SSE42
#endif

// The following are available for Visual C and clangcl 32 bit:
#if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && defined(_MSC_VER) && \
    !defined(__clang__) &&                                                   \
    (defined(VISUALC_HAS_AVX2) || defined(CLANG_HAS_AVX2))
#define HAS_HASHDJB2_AVX2
#define HAS_SUMSQUAREERROR_AVX2
#endif

// The following are available for GCC and clangcl:
#if !defined(LIBYUV_DISABLE_X86) &&               \
    (defined(__x86_64__) || defined(__i386__)) && \
    !defined(LIBYUV_ENABLE_ROWWIN)
#define HAS_HAMMINGDISTANCE_SSSE3
#endif

// The following are available for GCC and clangcl:
#if !defined(LIBYUV_DISABLE_X86) && defined(CLANG_HAS_AVX2) && \
    (defined(__x86_64__) || defined(__i386__)) &&              \
    !defined(LIBYUV_ENABLE_ROWWIN)
#define HAS_HAMMINGDISTANCE_AVX2
#endif

// The following are available for Neon:
#if !defined(LIBYUV_DISABLE_NEON) && \
    (defined(__ARM_NEON__) || defined(LIBYUV_NEON) || defined(__aarch64__))
#define HAS_HAMMINGDISTANCE_NEON
#define HAS_SUMSQUAREERROR_NEON
#endif

// The following are available for AArch64 Neon:
#if !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__)
#define HAS_HASHDJB2_NEON

#define HAS_HAMMINGDISTANCE_NEON_DOTPROD
#define HAS_SUMSQUAREERROR_NEON_DOTPROD
#endif

uint32_t HammingDistance_C(const uint8_t* src_a,
                           const uint8_t* src_b,
                           int count);
uint32_t HammingDistance_SSE42(const uint8_t* src_a,
                               const uint8_t* src_b,
                               int count);
uint32_t HammingDistance_SSSE3(const uint8_t* src_a,
                               const uint8_t* src_b,
                               int count);
uint32_t HammingDistance_AVX2(const uint8_t* src_a,
                              const uint8_t* src_b,
                              int count);
uint32_t HammingDistance_NEON(const uint8_t* src_a,
                              const uint8_t* src_b,
                              int count);
uint32_t HammingDistance_NEON_DotProd(const uint8_t* src_a,
                                      const uint8_t* src_b,
                                      int count);
uint32_t SumSquareError_C(const uint8_t* src_a,
                          const uint8_t* src_b,
                          int count);
uint32_t SumSquareError_SSE2(const uint8_t* src_a,
                             const uint8_t* src_b,
                             int count);
uint32_t SumSquareError_AVX2(const uint8_t* src_a,
                             const uint8_t* src_b,
                             int count);
uint32_t SumSquareError_NEON(const uint8_t* src_a,
                             const uint8_t* src_b,
                             int count);
uint32_t SumSquareError_NEON_DotProd(const uint8_t* src_a,
                                     const uint8_t* src_b,
                                     int count);

uint32_t HashDjb2_C(const uint8_t* src, int count, uint32_t seed);
uint32_t HashDjb2_SSE41(const uint8_t* src, int count, uint32_t seed);
uint32_t HashDjb2_AVX2(const uint8_t* src, int count, uint32_t seed);
uint32_t HashDjb2_NEON(const uint8_t* src, int count, uint32_t seed);

#ifdef __cplusplus
}  // extern "C"
}  // namespace libyuv
#endif

#endif  // INCLUDE_LIBYUV_COMPARE_ROW_H_