107 …ateDifferenceImage(cairo_surface_t* baselineImage, cairo_surface_t* actualImage, float& difference)  in createDifferenceImage()  argument
147         difference = 100.0f * sum / (height * width);  in createDifferenceImage()
149         difference = 0;  in createDifferenceImage()
151     if (!difference) {  in createDifferenceImage()
221             float difference = 100.0;  in main()  local
226 …diffImage = createDifferenceImage(actualImage, baselineImage, difference); // difference is passed…  in main()
227                 if (difference <= tolerance)  in main()
228                     difference = 0;  in main()
230                     difference = roundf(difference * 100.0) / 100.0;  in main()
231                     difference = max<float>(difference, 0.01); // round to 2 decimal places  in main()
236             if (difference > 0.0) {  in main()
246                 fprintf(stdout, "diff: %01.2f%% failed\n", difference);  in main()
248                 fprintf(stdout, "diff: %01.2f%% passed\n", difference);  in main()