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64ddbbcdde
- Route 32-bit x86 (__i386__ / _M_IX86) to compare_win.cc intrinsics and restrict compare_gcc.cc to 64-bit x86 (__x86_64__), avoiding x87 float rounding and enabling SSE2, AVX2, and AVX-512 on 32-bit and 64-bit MinGW, GCC, Clang, and MSan (LIBYUV_ENABLE_ROWWIN). - Enable AVX-512BW on GCC >= 6 (GCC_HAS_AVX512) and add LIBYUV_TARGET_AVX512BW attributes to compare_gcc.cc and compare_win.cc. - Refactor SsimWindowRow_C and Ssim8x8_C to use int32_t and float, and add SsimWindowRow_SSE2, SsimWindowRow_AVX2, and SsimWindowRow_AVX512BW in both compare_win.cc and compare_gcc.cc. - Update TestSsimAnyWidth, Ssim, and BenchmarkSsim_Opt in compare_test.cc to use EXPECT_NEAR and deterministic test patterns (identical, different, similar). - Update util/compare.cc and linux.mk to compute I420Ssim. Performance (BenchmarkSsim_Opt, 1280x720): uArch Before After Improvement Intel Lion Cove (x64 AVX2) 120.2 us 68.1 us 1.76x Intel Skymont (x64 SSE2) 249.6 us 146.8 us 1.70x AMD Zen 3 (x64 AVX2) 314.9 us 150.2 us 2.10x Intel Lion Cove (MinGW686) 203.7 us 77.9 us 2.61x Intel Skymont (MinGW686) 338.8 us 167.5 us 2.02x AMD Zen 3 (i686 AVX2) 738.4 us 206.5 us 3.58x Quality (util/compare on 640x360 I420 test images): Image Comparison MSE PSNR SSIM Identical (orig vs orig) 0.00 128.00 dB 1.000000 Similar (light +/-3 noise) 4.57 41.53 dB 0.956556 Degraded (16x16 blocky) 98.18 28.21 dB 0.858893 Very different (inverted) 11160.29 7.65 dB 0.000181 Co-authored-by: Martin Storsjö <martin@martin.st> Bug: b/493910265 Test: out/Release/libyuv_unittest --gtest_filter=*Ssim* Change-Id: I8603dab3f752af32d07ae9039502ca5da5a05425 Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8618641 Reviewed-by: richard winterton <rrwinterton@gmail.com> Commit-Queue: Frank Barchard <fbarchard@google.com> |
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| libyuv | ||
| libyuv.h | ||