r2159 - Viewport Resize Filter

[legend80]

the resize bug is gone, but the slowdown is still there, although only if stencil test is enabled. without it the speed's fine even on 3x, but with it enabled it goes down to 1-2 fps.

trying it in castlevania on its main menu btw.

with color mask enabled some screens are now gone btw (full screen 2d images on loading screens in ikkitousen). they're turned entirely black while they weren't before, but it doesn't cause a slowdown.

I can confirm the stencil slow down.

I also get dim/corrupted gfx with some games if the AF option checked. I don't remember seeing that before.

Fullscreen works pretty well now, except for it displaying the toolbar/bottom 5% of screen.