From d2e9025be65ce95b5ff15683af7dc6204f001588 Mon Sep 17 00:00:00 2001
From: Lior Halphon <LIJI32@gmail.com>
Date: Fri, 19 Jul 2019 23:59:25 +0300
Subject: [PATCH] Fixed major performence issues in the Cocoa port that
 affected some Macs, especially when emulating SGB1

---
 Cocoa/GBViewMetal.m | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Cocoa/GBViewMetal.m b/Cocoa/GBViewMetal.m
index 94b4975..fde4b7e 100644
--- a/Cocoa/GBViewMetal.m
+++ b/Cocoa/GBViewMetal.m
@@ -50,6 +50,7 @@ static const vector_float2 rect[] =
     view.delegate = self;
     self.internalView = view;
     view.paused = YES;
+    view.enableSetNeedsDisplay = YES;
     
     vertices = [device newBufferWithBytes:rect
                                    length:sizeof(rect)
@@ -206,7 +207,7 @@ static const vector_float2 rect[] =
 {
     [super flip];
     dispatch_async(dispatch_get_main_queue(), ^{
-        [(MTKView *)self.internalView draw];
+        [(MTKView *)self.internalView setNeedsDisplay:YES];
     });
 }