Custom internal resolution as in PCSX2

[Kodiack]

I'm a major amateur at coding, but something I would like to try my hand at once is custom internal resolution multipliers. There would be some standard options (e.g. 0.5x, 1x, 2x, 3x) and then a "Custom..." option that would prompt for a number. You'd put a number in (e.g. 0.25x or 6x) and it would use that. Right now, for example, 6x just isn't possible. You can get 4x through the standard options or with 1x + 4xSSAA, but if you go a step higher you're jumping to 2x + 4xSSAA for 8x. It's not that it's a bad implementation by any means, although I think it could be improved, and it definitely sounds like a fun project to try out for picking up some coding experience.

Of course, I'm sure there's some flaw in this idea somewhere that needs poking. Poke away, I say!