- Improve letterboxing in fullscreen by taking into account animorphic ratio settings.

- Added more resolutions to the hard coded table (up to 5K).
- Since we're using scaling for fullscreen, we should probably just use the hard coded table for fullscreen resolutions as well.
- Fixed: Resolution menu used fake aspect ratio to determine which aspect to file a resolution under.
- Added a way to use SDL surface blitting instead of accelerated textures.

src/menu/videomenu.cpp

@@ -247,8 +247,12 @@ static void BuildModesList (int hiwidth, int hiheight, int hi_bits)
 					if (Video != NULL)
 					{
 						while ((haveMode = Video->NextMode (&width, &height, &letterbox)) &&
-							(ratiomatch >= 0 && CheckRatio (width, height) != ratiomatch))
+							ratiomatch >= 0)
 						{
+							int ratio;
+							CheckRatio (width, height, &ratio);
+							if (ratio == ratiomatch)
+								break;
 						}
 					}