cvRound

modules/core/perf/perf_cvround.cpp

@@ -0,0 +1,45 @@
+#include "perf_precomp.hpp"
+
+using namespace std;
+using namespace cv;
+using namespace perf;
+using std::tr1::make_tuple;
+using std::tr1::get;
+
+template <typename T>
+static void CvRoundMat(const cv::Mat & src, cv::Mat & dst)
+{
+    for (int y = 0; y < dst.rows; ++y)
+    {
+        const T * sptr = src.ptr<T>(y);
+        int * dptr = dst.ptr<int>(y);
+
+        for (int x = 0; x < dst.cols; ++x)
+            dptr[x] = cvRound(sptr[x]);
+    }
+}
+
+PERF_TEST_P(Size_MatType, CvRound_Float,
+            testing::Combine(testing::Values(TYPICAL_MAT_SIZES),
+                             testing::Values(CV_32FC1, CV_64FC1)))
+{
+    Size size = get<0>(GetParam());
+    int type = get<1>(GetParam()), depth = CV_MAT_DEPTH(type);
+
+    cv::Mat src(size, type), dst(size, CV_32SC1);
+
+    declare.in(src, WARMUP_RNG).out(dst);
+
+    if (depth == CV_32F)
+    {
+        TEST_CYCLE()
+            CvRoundMat<float>(src, dst);
+    }
+    else if (depth == CV_64F)
+    {
+        TEST_CYCLE()
+            CvRoundMat<double>(src, dst);
+    }
+
+    SANITY_CHECK_NOTHING();
+}