text: #include "perf_precomp.hpp"
  
  namespace opencv_test
  {
  using namespace perf;
  
  #define TYPICAL_MAT_TYPES_ADWEIGHTED  CV_8UC1, CV_8UC4, CV_8SC1, CV_16UC1, CV_16SC1, CV_32SC1
  #define TYPICAL_MATS_ADWEIGHTED       testing::Combine(testing::Values(szVGA, sz720p, sz1080p), testing::Values(TYPICAL_MAT_TYPES_ADWEIGHTED))
  
  PERF_TEST_P(Size_MatType, addWeighted, TYPICAL_MATS_ADWEIGHTED)
  {
      Size size = get<0>(GetParam());
      int type = get<1>(GetParam());
      int depth = CV_MAT_DEPTH(type);
      Mat src1(size, type);
      Mat src2(size, type);
      double alpha = 3.75;
      double beta = -0.125;
      double gamma = 100.0;
  
      Mat dst(size, type);
  
      declare.in(src1, src2, dst, WARMUP_RNG).out(dst);
  
      if (depth == CV_32S)
      {
          // there might be not enough precision for integers
          src1 /= 2048;
          src2 /= 2048;
      }
  
      TEST_CYCLE() cv::addWeighted( src1, alpha, src2, beta, gamma, dst, dst.type() );
  
      SANITY_CHECK(dst, depth == CV_32S ? 4 : 1);
  }
  
  } // namespace
  