diff options
Diffstat (limited to 'chromium/third_party/libyuv/unit_test/compare_test.cc')
| -rw-r--r-- | chromium/third_party/libyuv/unit_test/compare_test.cc | 120 |
1 files changed, 117 insertions, 3 deletions
diff --git a/chromium/third_party/libyuv/unit_test/compare_test.cc b/chromium/third_party/libyuv/unit_test/compare_test.cc index 149a9a13ae6..ff39b2b0f60 100644 --- a/chromium/third_party/libyuv/unit_test/compare_test.cc +++ b/chromium/third_party/libyuv/unit_test/compare_test.cc @@ -229,13 +229,34 @@ TEST_F(LibYUVCompareTest, BenchmarkHammingDistance_Opt) { for (int i = 0; i < count; ++i) { #if defined(HAS_HAMMINGDISTANCE_NEON) h1 = HammingDistance_NEON(src_a, src_b, kMaxWidth); -#elif defined(HAS_HAMMINGDISTANCE_X86) - h1 = HammingDistance_X86(src_a, src_b, kMaxWidth); +#elif defined(HAS_HAMMINGDISTANCE_AVX2) + int has_avx2 = TestCpuFlag(kCpuHasAVX2); + if (has_avx2) { + h1 = HammingDistance_AVX2(src_a, src_b, kMaxWidth); + } else { + int has_sse42 = TestCpuFlag(kCpuHasSSE42); + if (has_sse42) { + h1 = HammingDistance_SSE42(src_a, src_b, kMaxWidth); + } else { + int has_ssse3 = TestCpuFlag(kCpuHasSSSE3); + if (has_ssse3) { + h1 = HammingDistance_SSSE3(src_a, src_b, kMaxWidth); + } else { + h1 = HammingDistance_C(src_a, src_b, kMaxWidth); + } + } + } +#elif defined(HAS_HAMMINGDISTANCE_SSE42) + int has_sse42 = TestCpuFlag(kCpuHasSSE42); + if (has_sse42) { + h1 = HammingDistance_SSE42(src_a, src_b, kMaxWidth); + } else { + h1 = HammingDistance_C(src_a, src_b, kMaxWidth); + } #else h1 = HammingDistance_C(src_a, src_b, kMaxWidth); #endif } - EXPECT_EQ(h0, h1); free_aligned_buffer_page_end(src_a); @@ -305,6 +326,99 @@ TEST_F(LibYUVCompareTest, BenchmarkHammingDistance) { free_aligned_buffer_page_end(src_b); } +// Tests low levels match reference C for specified size. +// The opt implementations have size limitations +// For NEON the counters are 16 bit so the shorts overflow after 65536 bytes. +// So doing one less iteration of the loop is the maximum. +#if defined(HAS_HAMMINGDISTANCE_NEON) +static const int kMaxOptCount = 65536 - 32; // 65504 +#else +static const int kMaxOptCount = (1 << (32 - 3)) - 64; // 536870848 +#endif + +TEST_F(LibYUVCompareTest, TestHammingDistance_Opt) { + uint32 h1 = 0; + const int kMaxWidth = benchmark_width_ * benchmark_height_; + align_buffer_page_end(src_a, kMaxWidth); + align_buffer_page_end(src_b, kMaxWidth); + memset(src_a, 255u, kMaxWidth); + memset(src_b, 0u, kMaxWidth); + + uint64 h0 = ComputeHammingDistance(src_a, src_b, kMaxWidth); + EXPECT_EQ(kMaxWidth * 8ULL, h0); + + for (int i = 0; i < benchmark_iterations_; ++i) { +#if defined(HAS_HAMMINGDISTANCE_NEON) + h1 = HammingDistance_NEON(src_a, src_b, kMaxWidth); +#elif defined(HAS_HAMMINGDISTANCE_AVX2) + int has_avx2 = TestCpuFlag(kCpuHasAVX2); + if (has_avx2) { + h1 = HammingDistance_AVX2(src_a, src_b, kMaxWidth); + } else { + int has_sse42 = TestCpuFlag(kCpuHasSSE42); + if (has_sse42) { + h1 = HammingDistance_SSE42(src_a, src_b, kMaxWidth); + } else { + int has_ssse3 = TestCpuFlag(kCpuHasSSSE3); + if (has_ssse3) { + h1 = HammingDistance_SSSE3(src_a, src_b, kMaxWidth); + } else { + h1 = HammingDistance_C(src_a, src_b, kMaxWidth); + } + } + } +#elif defined(HAS_HAMMINGDISTANCE_SSE42) + int has_sse42 = TestCpuFlag(kCpuHasSSE42); + if (has_sse42) { + h1 = HammingDistance_SSE42(src_a, src_b, kMaxWidth); + } else { + h1 = HammingDistance_C(src_a, src_b, kMaxWidth); + } +#else + h1 = HammingDistance_C(src_a, src_b, kMaxWidth); +#endif + } + + // A large count will cause the low level to potentially overflow so the + // result can not be expected to be correct. + // TODO(fbarchard): Consider expecting the low 16 bits to match. + if (kMaxWidth <= kMaxOptCount) { + EXPECT_EQ(kMaxWidth * 8U, h1); + } else { + if (kMaxWidth * 8ULL != static_cast<uint64>(h1)) { + printf( + "warning - HammingDistance_Opt %u does not match %llu " + "but length of %u is longer than guaranteed.\n", + h1, kMaxWidth * 8ULL, kMaxWidth); + } else { + printf( + "warning - HammingDistance_Opt %u matches but length of %u " + "is longer than guaranteed.\n", + h1, kMaxWidth); + } + } + + free_aligned_buffer_page_end(src_a); + free_aligned_buffer_page_end(src_b); +} + +TEST_F(LibYUVCompareTest, TestHammingDistance) { + align_buffer_page_end(src_a, benchmark_width_ * benchmark_height_); + align_buffer_page_end(src_b, benchmark_width_ * benchmark_height_); + memset(src_a, 255u, benchmark_width_ * benchmark_height_); + memset(src_b, 0, benchmark_width_ * benchmark_height_); + + uint64 h1 = 0; + for (int i = 0; i < benchmark_iterations_; ++i) { + h1 = ComputeHammingDistance(src_a, src_b, + benchmark_width_ * benchmark_height_); + } + EXPECT_EQ(benchmark_width_ * benchmark_height_ * 8ULL, h1); + + free_aligned_buffer_page_end(src_a); + free_aligned_buffer_page_end(src_b); +} + TEST_F(LibYUVCompareTest, BenchmarkSumSquareError_Opt) { const int kMaxWidth = 4096 * 3; align_buffer_page_end(src_a, kMaxWidth); |