- throw std::runtime_error("Invalid aspect spec, should be WIDTH:HEIGHT");
- } else {
- float aspect_ratio = static_cast<double>(config->aspect_width) /
- static_cast<double>(config->aspect_height);
-
- // use aspect ratio to calculate logical resolution
- if (aspect_ratio > 1) {
- config->aspect_width = static_cast<int> (600 * aspect_ratio + 0.5);
- config->aspect_height = 600;
- } else {
- config->aspect_width = 600;
- config->aspect_height = static_cast<int> (600 * 1/aspect_ratio + 0.5);
- }
+ throw std::runtime_error("Need to specify a ratio (WIDTH:HEIGHT) for aspect ratio");
+ }
+ else
+ {
+ int aspect_width = 0;
+ int aspect_height = 0;
+ if (strcmp(argv[i], "auto") == 0)
+ {
+ aspect_width = 0;
+ aspect_height = 0;
+ }
+ else if (sscanf(argv[i], "%d:%d", &aspect_width, &aspect_height) != 2)
+ {
+ print_usage(argv[0]);
+ throw std::runtime_error("Invalid aspect spec, should be WIDTH:HEIGHT or auto");
+ }
+ else
+ {
+ float aspect_ratio = static_cast<double>(config->aspect_width) /
+ static_cast<double>(config->aspect_height);
+
+ // use aspect ratio to calculate logical resolution
+ if (aspect_ratio > 1) {
+ config->aspect_width = static_cast<int> (600 * aspect_ratio + 0.5);
+ config->aspect_height = 600;
+ } else {
+ config->aspect_width = 600;
+ config->aspect_height = static_cast<int> (600 * 1/aspect_ratio + 0.5);
+ }
+ }