From 3db33979e1a5f29a71fc42f5a3902eedc55f94e6 Mon Sep 17 00:00:00 2001
From: Ilya Lavrenov <ilya.lavrenov@itseez.com>
Date: Sat, 18 Jan 2014 23:41:49 +0400
Subject: [PATCH] added perf tests for stitching warpers

---
 .../stitching/perf/opencl/perf_warpers.cpp    | 145 ++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 modules/stitching/perf/opencl/perf_warpers.cpp

diff --git a/modules/stitching/perf/opencl/perf_warpers.cpp b/modules/stitching/perf/opencl/perf_warpers.cpp
new file mode 100644
index 0000000000..4cb014126c
--- /dev/null
+++ b/modules/stitching/perf/opencl/perf_warpers.cpp
@@ -0,0 +1,145 @@
+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2010-2013, Advanced Micro Devices, Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the OpenCV Foundation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#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