added SURF perf. test, added working dir field (can be changed via CMD args)

samples/gpu/performance/performance.cpp

 #include <iomanip>
+#include <stdexcept>
 #include "performance.h"
 
 using namespace std;
@@ -25,8 +26,14 @@ void TestSystem::run()
             (*it)->run();
             flushSubtestData();
         }
-        catch (const cv::Exception&)
+        catch (const Exception&)
         {
+            // Message is printed via callback
+            resetSubtestData();
+        }
+        catch (const runtime_error& e)
+        {
+            printError(e.what());
             resetSubtestData();
         }
     }
@@ -35,6 +42,12 @@ void TestSystem::run()
 }
 
 
+void TestSystem::setWorkingDir(const string& val)
+{
+    working_dir_ = val;
+}
+
+
 void TestSystem::flushSubtestData()
 {
     if (!can_flush_)
@@ -43,7 +56,7 @@ void TestSystem::flushSubtestData()
     int cpu_time = static_cast<int>(cpu_elapsed_ / getTickFrequency() * 1000.0);
     int gpu_time = static_cast<int>(gpu_elapsed_ / getTickFrequency() * 1000.0);
 
-    double speedup = static_cast<double>(cpu_time) / std::max(1, gpu_time);
+    double speedup = static_cast<double>(cpu_elapsed_) / gpu_elapsed_;
     speedup_total_ += speedup;
 
     printItem(cpu_time, gpu_time, speedup);
@@ -57,7 +70,7 @@ void TestSystem::printHeading()
 {
     cout << setiosflags(ios_base::left);
     cout << TAB << setw(10) << "CPU, ms" << setw(10) << "GPU, ms" 
-        << setw(10) << "SPEEDUP" 
+        << setw(14) << "SPEEDUP" 
         << "DESCRIPTION\n";
     cout << resetiosflags(ios_base::left);
 }
@@ -87,13 +100,19 @@ void TestSystem::printItem(double cpu_time, double gpu_time, double speedup)
 
     stream.str("");
     stream << "x" << setprecision(3) << speedup;
-    cout << setw(10) << stream.str();
+    cout << setw(14) << stream.str();
 
     cout << description_.str();
     cout << resetiosflags(ios_base::left) << endl;
 }
 
 
+void TestSystem::printError(const std::string& msg)
+{
+    cout << TAB << "[error: " << msg << "] " << description_.str() << endl;
+}
+
+
 void gen(Mat& mat, int rows, int cols, int type, Scalar low, Scalar high)
 {
     mat.create(rows, cols, type);
@@ -102,17 +121,34 @@ void gen(Mat& mat, int rows, int cols, int type, Scalar low, Scalar high)
 }
 
 
+string abspath(const string& relpath)
+{
+    return TestSystem::instance()->workingDir() + relpath;
+}
+
+
 int CV_CDECL cvErrorCallback(int /*status*/, const char* /*func_name*/, 
-                             const char* /*err_msg*/, const char* /*file_name*/,
+                             const char* err_msg, const char* /*file_name*/,
                              int /*line*/, void* /*userdata*/)
 {
+    TestSystem::instance()->printError(err_msg);
     return 0;
 }
 
 
-int main()
+int main(int argc, char** argv)
 {
+    if (argc < 2)
+    {
+        cout << "Usage: performance_gpu <working_dir_with_slash>\n\n";
+    }
+    else
+    {
+        TestSystem::instance()->setWorkingDir(argv[1]);
+    }
+
     redirectError(cvErrorCallback);
     TestSystem::instance()->run();
+
     return 0;
 }
\ No newline at end of file

samples/gpu/performance/performance.h

@@ -63,6 +63,12 @@ public:
         can_flush_ = true;
     }
 
+    void setWorkingDir(const std::string& val);
+
+    const std::string& workingDir() const { return working_dir_; }
+
+    void printError(const std::string& msg);
+
 private:
     TestSystem(): can_flush_(false), cpu_elapsed_(0), gpu_elapsed_(0), 
                   speedup_total_(0.0), num_subtests_called_(0) {};
@@ -81,6 +87,8 @@ private:
     void printSummary();
     void printItem(double cpu_time, double gpu_time, double speedup);
 
+    std::string working_dir_;
+
     std::vector<Runnable*> inits_;
     std::vector<Runnable*> tests_;
 
@@ -128,4 +136,6 @@ private:
 void gen(cv::Mat& mat, int rows, int cols, int type, cv::Scalar low, 
          cv::Scalar high);
 
+std::string abspath(const std::string& relpath);
+
 #endif // OPENCV_GPU_SAMPLE_PERFORMANCE_H_
\ No newline at end of file

samples/gpu/performance/tests.cpp

+#include <stdexcept>
 #include <opencv2/imgproc/imgproc.hpp>
+#include <opencv2/highgui/highgui.hpp>
 #include <opencv2/gpu/gpu.hpp>
 #include "performance.h"
 
@@ -81,8 +83,20 @@ TEST(remap)
         SUBTEST << "src " << size << " and 8U, 32F maps";
 
         gen(src, size, size, CV_8UC1, 0, 256);
-        gen(xmap, size, size, CV_32F, 0, size);
-        gen(ymap, size, size, CV_32F, 0, size);
+
+        xmap.create(size, size, CV_32F);
+        ymap.create(size, size, CV_32F);
+        for (int i = 0; i < size; ++i)
+        {
+            float* xmap_row = xmap.ptr<float>(i);
+            float* ymap_row = ymap.ptr<float>(i);
+            for (int j = 0; j < size; ++j)
+            {
+                xmap_row[j] = (j - size * 0.5f) * 0.75f + size * 0.5f;
+                ymap_row[j] = (i - size * 0.5f) * 0.75f + size * 0.5f;
+            }
+        }
+
         dst.create(xmap.size(), src.type());
 
         CPU_ON;
@@ -97,22 +111,6 @@ TEST(remap)
         GPU_ON;
         gpu::remap(d_src, d_dst, d_xmap, d_ymap);
         GPU_OFF;
-
-        SUBTEST << "src " << size << " and 8U, 32F singular maps";
-
-        gen(xmap, size, size, CV_32F, 0, 0);
-        gen(ymap, size, size, CV_32F, 0, 0);
-
-        CPU_ON;
-        remap(src, dst, xmap, ymap, INTER_LINEAR);
-        CPU_OFF;
-
-        d_xmap = xmap;
-        d_ymap = ymap;
-
-        GPU_ON;
-        gpu::remap(d_src, d_dst, d_xmap, d_ymap);
-        GPU_OFF;
     }
 }
 
@@ -217,3 +215,62 @@ TEST(norm)
         GPU_OFF;
     }
 }
+
+
+TEST(meanShift)
+{
+    int sp = 10, sr = 10;
+
+    Mat src, dst;
+    gpu::GpuMat d_src, d_dst;
+
+    for (int size = 400; size <= 800; size *= 2)
+    {
+        SUBTEST << "size " << size << ", 8UC3 vs 8UC4";
+
+        gen(src, size, size, CV_8UC3, Scalar::all(0), Scalar::all(256));
+        dst.create(src.size(), src.type());
+
+        CPU_ON;
+        pyrMeanShiftFiltering(src, dst, sp, sr);
+        CPU_OFF;
+
+        gen(src, size, size, CV_8UC4, Scalar::all(0), Scalar::all(256));
+
+        d_src = src;
+        d_dst.create(d_src.size(), d_src.type());
+
+        GPU_ON;
+        gpu::meanShiftFiltering(d_src, d_dst, sp, sr);
+        GPU_OFF;
+    }
+}
+
+
+TEST(SURF)
+{
+    Mat src1 = imread(abspath("bowlingL.png"), CV_LOAD_IMAGE_GRAYSCALE);
+    Mat src2 = imread(abspath("bowlingR.png"), CV_LOAD_IMAGE_GRAYSCALE);
+    if (src1.empty()) throw runtime_error("can't open bowlingL.png");
+    if (src2.empty()) throw runtime_error("can't open bowlingR.png");
+
+    gpu::GpuMat d_src1(src1);
+    gpu::GpuMat d_src2(src2);
+
+    SURF surf;
+    vector<KeyPoint> keypoints1, keypoints2;
+
+    CPU_ON;
+    surf(src1, Mat(), keypoints1);
+    surf(src2, Mat(), keypoints2);
+    CPU_OFF;
+
+    gpu::SURF_GPU d_surf;
+    gpu::GpuMat d_keypoints1, d_keypoints2;
+    gpu::GpuMat d_descriptors1, d_descriptors2;
+
+    GPU_ON;
+    d_surf(d_src1, gpu::GpuMat(), d_keypoints1);
+    d_surf(d_src2, gpu::GpuMat(), d_keypoints2);
+    GPU_OFF;
+}
\ No newline at end of file