added perf tests for stitching warpers

modules/stitching/perf/opencl/perf_warpers.cpp

@@ -0,0 +1,145 @@
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+
+#include "test_precomp.hpp"
+#include "opencv2/stitching/warpers.hpp"
+#include "opencv2/ts/ocl_perf.hpp"
+
+#ifdef HAVE_OPENCL
+
+namespace cvtest {
+namespace ocl {
+
+///////////////////////// Stitching Warpers ///////////////////////////
+
+enum
+{
+    SphericalWarperType = 0,
+    CylindricalWarperType = 1,
+    PlaneWarperType = 2
+};
+
+class WarperBase
+{
+public:
+    explicit WarperBase(int type)
+    {
+        Ptr<WarperCreator> creator;
+        if (cv::ocl::useOpenCL())
+        {
+            if (type == SphericalWarperType)
+                creator = makePtr<SphericalWarperOcl>();
+            else if (type == CylindricalWarperType)
+                creator = makePtr<CylindricalWarperOcl>();
+            else if (type == PlaneWarperType)
+                creator = makePtr<PlaneWarperOcl>();
+        }
+        else
+        {
+            if (type == SphericalWarperType)
+                creator = makePtr<SphericalWarper>();
+            else if (type == CylindricalWarperType)
+                creator = makePtr<CylindricalWarper>();
+            else if (type == PlaneWarperType)
+                creator = makePtr<PlaneWarper>();
+        }
+        CV_Assert(!creator.empty());
+
+        warper = creator->create(2.0);
+
+        K = Mat::eye(3, 3, CV_32FC1);
+        R = Mat::eye(3, 3, CV_32FC1);
+    }
+
+    Rect buildMaps(Size src_size, OutputArray xmap, OutputArray ymap) const
+    {
+        return warper->buildMaps(src_size, K, R, xmap, ymap);
+    }
+
+    Point warp(InputArray src, int interp_mode, int border_mode, OutputArray dst) const
+    {
+        return warper->warp(src, K, R, interp_mode, border_mode, dst);
+    }
+
+private:
+    Ptr<detail::RotationWarper> warper;
+    Mat K, R;
+};
+
+CV_ENUM(WarperType, SphericalWarperType, CylindricalWarperType, PlaneWarperType)
+
+typedef tuple<Size, WarperType> StitchingWarpersParams;
+typedef TestBaseWithParam<StitchingWarpersParams> StitchingWarpersFixture;
+
+OCL_PERF_TEST_P(StitchingWarpersFixture, StitchingWarpers_BuildMaps,
+                ::testing::Combine(OCL_TEST_SIZES, WarperType::all()))
+{
+    const StitchingWarpersParams params = GetParam();
+    const Size srcSize = get<0>(params);
+    const WarperBase warper(get<1>(params));
+
+    UMat src(srcSize, CV_32FC1), xmap(srcSize, CV_32FC1), ymap(srcSize, CV_32FC1);
+    declare.in(src, WARMUP_RNG).out(xmap, ymap);
+
+    OCL_TEST_CYCLE() warper.buildMaps(srcSize, xmap, ymap);
+
+    SANITY_CHECK(xmap, 1e-3);
+    SANITY_CHECK(ymap, 1e-3);
+}
+
+OCL_PERF_TEST_P(StitchingWarpersFixture, StitchingWarpers_Warp,
+                ::testing::Combine(OCL_TEST_SIZES, WarperType::all()))
+{
+    const StitchingWarpersParams params = GetParam();
+    const Size srcSize = get<0>(params);
+    const WarperBase warper(get<1>(params));
+
+    UMat src(srcSize, CV_32FC1), dst(srcSize, CV_32FC1);
+    declare.in(src, WARMUP_RNG).out(dst);
+
+    OCL_TEST_CYCLE() warper.warp(src, INTER_LINEAR, BORDER_REPLICATE, dst);
+
+    SANITY_CHECK(dst, 1e-5);
+}
+
+} } // namespace cvtest::ocl
+
+#endif // HAVE_OPENCL