src/java.desktop/macosx/classes/sun/lwawt/LWComponentPeer.java

rev 54883 : JDK-8220154 Improve java2d rendering performance on macOS by using Metal framework

@@ -75,12 +75,15 @@
 import sun.awt.SunToolkit;
 import sun.awt.event.IgnorePaintEvent;
 import sun.awt.image.SunVolatileImage;
 import sun.awt.image.ToolkitImage;
 import sun.java2d.SunGraphics2D;
+import sun.java2d.macos.MacOSFlags;
+import sun.java2d.metal.MTLRenderQueue;
 import sun.java2d.opengl.OGLRenderQueue;
 import sun.java2d.pipe.Region;
+import sun.java2d.pipe.RenderQueue;
 import sun.util.logging.PlatformLogger;
 
 public abstract class LWComponentPeer<T extends Component, D extends JComponent>
     implements ComponentPeer, DropTargetPeer
 {

@@ -1432,11 +1435,12 @@
             }
         }
     }
 
     protected static final void flushOnscreenGraphics(){
-        final OGLRenderQueue rq = OGLRenderQueue.getInstance();
+        RenderQueue rq = MacOSFlags.isMetalEnabled() ?
+                MTLRenderQueue.getInstance() : OGLRenderQueue.getInstance();
         rq.lock();
         try {
             rq.flushNow();
         } finally {
             rq.unlock();