--- gui-cocoa/screen.m
+++ gui-cocoa/screen.m
@@ -22,6 +22,8 @@
 #endif
 #define LOG(fmt, ...) if(DEBUG)NSLog((@"%s:%d %s " fmt), __FILE__, __LINE__, __PRETTY_FUNCTION__, ##__VA_ARGS__)
 
+#define SCALE 2.0
+
 Memimage *gscreen;
 
 @interface DrawLayer : CAMetalLayer
@@ -73,8 +75,8 @@
 {
 	memimageinit();
 	NSSize s = [myview convertSizeToBacking:myview.frame.size];
-	screensize(Rect(0, 0, s.width, s.height), ARGB32);
-	gscreen->clipr = Rect(0, 0, s.width, s.height);
+	screensize(Rect(0, 0, s.width / SCALE, s.height / SCALE), ARGB32);
+	gscreen->clipr = Rect(0, 0, s.width / SCALE, s.height / SCALE);
 	LOG(@"%g %g", s.width, s.height);
 	terminit();
 	readybit = 1;
@@ -105,6 +107,9 @@
 	CGFloat scale = myview.window.backingScaleFactor;
 	[layer setDrawableSize:NSMakeSize(Dx(r), Dy(r))];
 	[layer setContentsScale:scale];
+	[layer setShouldRasterize:YES];
+	[layer setRasterizationScale:scale];
+	[layer setMagnificationFilter:kCAFilterNearest];
 }
 	gscreen = i;
 	gscreen->clipr = ZR;
@@ -283,7 +288,7 @@
 		NSPoint s;
 
 		if([[myview window] isKeyWindow]){
-			s = NSMakePoint(p.x, p.y);
+			s = NSMakePoint(p.x * SCALE, p.y * SCALE);
 			LOG(@"-> pixel  %g %g", s.x, s.y);
 			s = [[myview window] convertPointFromBacking:s];
 			LOG(@"-> point  %g %g", s.x, s.y);
@@ -378,7 +383,7 @@
 {
 	NSPoint p;
 	p = [_window convertPointToBacking:[_window mouseLocationOutsideOfEventStream]];
-	absmousetrack(p.x, [myview convertSizeToBacking:myview.frame.size].height - p.y, 0, ticks());
+	absmousetrack(p.x / SCALE, ([myview convertSizeToBacking:myview.frame.size].height - p.y) / SCALE, 0, ticks());
 }
 
 - (void) windowDidResignKey:(id)arg
@@ -597,8 +602,8 @@
 
 	p = [self.window convertPointToBacking:[self.window mouseLocationOutsideOfEventStream]];
 	u = [NSEvent pressedMouseButtons];
-	q.x = p.x;
-	q.y = p.y;
+	q.x = p.x / SCALE;
+	q.y = p.y / SCALE;
 	if(!ptinrect(q, gscreen->clipr)) return;
 	u = (u&~6) | (u&4)>>1 | (u&2)<<1;
 	if(u == 1){
@@ -609,7 +614,7 @@
 		}else if(m & NSEventModifierFlagCommand)
 			u = 4;
 	}
-	absmousetrack(p.x, [self convertSizeToBacking:self.frame.size].height - p.y, u, ticks());
+	absmousetrack(p.x / SCALE, ([self convertSizeToBacking:self.frame.size].height - p.y) / SCALE, u, ticks());
 	if(u && _lastInputRect.size.width && _lastInputRect.size.height)
 		[self resetLastInputRect];
 }
@@ -700,7 +705,7 @@
 	NSSize s = [self convertSizeToBacking:self.frame.size];
 	LOG(@"%g %g", s.width, s.height);
 	if(gscreen != nil){
-		screenresize(Rect(0, 0, s.width, s.height));
+		screenresize(Rect(0, 0, s.width / SCALE, s.height / SCALE));
 	}
 }