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-rw-r--r--include/libyuv/compare_row.h130
1 files changed, 130 insertions, 0 deletions
diff --git a/include/libyuv/compare_row.h b/include/libyuv/compare_row.h
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+++ b/include/libyuv/compare_row.h
@@ -0,0 +1,130 @@
+/*
+ * 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"
+
+#ifdef __cplusplus
+namespace libyuv {
+extern "C" {
+#endif
+
+#if defined(__pnacl__) || defined(__CLR_VER) || \
+ (defined(__native_client__) && defined(__x86_64__)) || \
+ (defined(__i386__) && !defined(__SSE__) && !defined(__clang__))
+#define LIBYUV_DISABLE_X86
+#endif
+#if defined(__native_client__)
+#define LIBYUV_DISABLE_NEON
+#endif
+// MemorySanitizer does not support assembly code yet. http://crbug.com/344505
+#if defined(__has_feature)
+#if __has_feature(memory_sanitizer)
+#define LIBYUV_DISABLE_X86
+#endif
+#endif
+// Visual C 2012 required for AVX2.
+#if defined(_M_IX86) && !defined(__clang__) && defined(_MSC_VER) && \
+ _MSC_VER >= 1700
+#define VISUALC_HAS_AVX2 1
+#endif // VisualStudio >= 2012
+
+// clang >= 3.4.0 required for AVX2.
+#if defined(__clang__) && (defined(__x86_64__) || defined(__i386__))
+#if (__clang_major__ > 3) || (__clang_major__ == 3 && (__clang_minor__ >= 4))
+#define CLANG_HAS_AVX2 1
+#endif // clang >= 3.4
+#endif // __clang__
+
+// The following are available for Visual C and GCC:
+#if !defined(LIBYUV_DISABLE_X86) && \
+ (defined(__x86_64__) || 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__))
+#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__))
+#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_SUMSQUAREERROR_NEON
+#define HAS_HAMMINGDISTANCE_NEON
+#endif
+
+#if !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)
+#define HAS_HAMMINGDISTANCE_MSA
+#define HAS_SUMSQUAREERROR_MSA
+#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_MSA(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_MSA(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);
+
+#ifdef __cplusplus
+} // extern "C"
+} // namespace libyuv
+#endif
+
+#endif // INCLUDE_LIBYUV_COMPARE_ROW_H_