winemac: Prevent interpolation of the window surface image when it's blitted to the actual window.

On high-resolution Retina displays, the OS X window backing store has twice the pixels as Wine's window backing store. So, our images get scaled up. Core Graphics had been interpolating/smoothing the image, which resulted in fuzziness. This tells it not to do that. I had assumed this wouldn't be necessary since we pass FALSE for the shouldInterpolate parameter of CGImageCreate() when we create the images. Apparently, that's not sufficient.

winemac: Prevent interpolation of the window surface image when it's blitted to the actual window.
530a039d · Ken Thomases · Alexandre Julliard · 15e609ba · 530a039d
Commit 530a039d authored Feb 02, 2015 by Ken Thomases Committed by Alexandre Julliard Feb 03, 2015
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cocoa_window.m dlls/winemac.drv/cocoa_window.m +1 -0

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--- a/dlls/winemac.drv/cocoa_window.m
+++ b/dlls/winemac.drv/cocoa_window.m
@@ -265,6 +265,7 @@ static inline NSUInteger adjusted_modifiers_for_option_behavior(NSUInteger modif

                context = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
                CGContextSetBlendMode(context, kCGBlendModeCopy);
+                CGContextSetInterpolationQuality(context, kCGInterpolationNone);

                for (i = 0; i < count; i++)
                {