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SIMD support for FP8 - #29832 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [x] The feature is well documented and sample code can be built with the project CMake
89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
#include "perf_precomp.hpp"
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namespace opencv_test
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{
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using namespace perf;
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typedef tuple<Size, MatType, MatType, int, double> Size_DepthSrc_DepthDst_Channels_alpha_t;
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typedef perf::TestBaseWithParam<Size_DepthSrc_DepthDst_Channels_alpha_t> Size_DepthSrc_DepthDst_Channels_alpha;
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PERF_TEST_P( Size_DepthSrc_DepthDst_Channels_alpha, convertTo,
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testing::Combine
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(
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testing::Values(szVGA, sz1080p),
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testing::Values(CV_8U, CV_8S, CV_16U, CV_16S, CV_32S, CV_32F, CV_64F),
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testing::Values(CV_8U, CV_8S, CV_16U, CV_16S, CV_32S, CV_32F, CV_64F),
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testing::Values(1, 4),
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testing::Values(1.0, 1./255)
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)
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)
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{
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Size sz = get<0>(GetParam());
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int depthSrc = get<1>(GetParam());
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int depthDst = get<2>(GetParam());
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int channels = get<3>(GetParam());
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double alpha = get<4>(GetParam());
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int maxValue = 255;
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Mat src(sz, CV_MAKETYPE(depthSrc, channels));
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randu(src, 0, maxValue);
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Mat dst(sz, CV_MAKETYPE(depthDst, channels));
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int runs = (sz.width <= 640) ? 8 : 1;
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TEST_CYCLE_MULTIRUN(runs) src.convertTo(dst, depthDst, alpha);
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double eps = depthSrc <= CV_32S && (depthDst <= CV_32S || depthDst == CV_64F) ? 1e-12 : (FLT_EPSILON * maxValue);
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eps = eps * std::max(1.0, fabs(alpha));
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SANITY_CHECK(dst, eps);
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}
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// alpha param covers both the identity and scale FP8 kernels.
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// Two distributions tracked: well-scaled (fast path) vs near-zero (fallback path).
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typedef tuple<Size, MatType, double> Size_Fp8Depth_Alpha_t;
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typedef perf::TestBaseWithParam<Size_Fp8Depth_Alpha_t> Size_Fp8Depth_Alpha;
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PERF_TEST_P( Size_Fp8Depth_Alpha, convertToFp8_wellScaled,
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testing::Combine
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(
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testing::Values(szVGA, sz1080p),
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testing::Values(CV_8F_E4M3FN, CV_8F_E4M3FNUZ),
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testing::Values(1.0, 0.1)
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)
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)
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{
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Size sz = get<0>(GetParam());
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int fp8depth = get<1>(GetParam());
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double alpha = get<2>(GetParam());
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Mat src(sz, CV_32FC1);
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randu(src, -8.0, 8.0); // mostly normal-range -> mostly the fast path
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Mat dst(sz, fp8depth);
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TEST_CYCLE() src.convertTo(dst, fp8depth, alpha, 0.0);
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SANITY_CHECK_NOTHING();
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}
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PERF_TEST_P( Size_Fp8Depth_Alpha, convertToFp8_nearZero,
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testing::Combine
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(
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testing::Values(szVGA, sz1080p),
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testing::Values(CV_8F_E4M3FN, CV_8F_E4M3FNUZ),
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testing::Values(1.0, 0.1)
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)
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)
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{
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Size sz = get<0>(GetParam());
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int fp8depth = get<1>(GetParam());
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double alpha = get<2>(GetParam());
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Mat src(sz, CV_32FC1);
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randu(src, -0.006, 0.006); // below E4M3's smallest normal (2^-6) -> mostly the fallback path
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Mat dst(sz, fp8depth);
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TEST_CYCLE() src.convertTo(dst, fp8depth, alpha, 0.0);
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SANITY_CHECK_NOTHING();
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}
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} // namespace
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