4x window mode for HiDPI displays

[hexnut]

Running on a Dell XPS 13 9630 with 3200x1800 resolution display via wine on Fedora Linux. 2x windowed mode is a bit small and fonts would be unreadable except for font DPI scaling with winecfg. Thinking a 4x mode would be about right.

[tomcw]

From issues #358, #488:
AppleWin will try to integer scale the base resolution of 560x384.
(Currently it only attempts to scale by 2.)

So this means:

• x4: 2240 x 1536

As AppleWin scales using GDI's StretchBlt(), then there's no smoothing (anti-aliasing) so the resulting image will just get chunkier.

Anyway, it's probably worth supporting this for now.

[sicklittlemonkey]

How does fullscreen look at 3200x1800? Cheers, Nick

[rzumer]

Making it configurable would also be nice.