RFR: 8239589: JavaFX UI will not repaint after reconnecting via Remote Desktop

[Kevin Rushforth]

On Mon, 11 Jan 2021 22:20:38 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> Now more of my company are remoting into machines this issue is causing problems for us.
>
> I moved it to Draft before noticing that there were additional commits after your last comment that I had missed seeing earlier, so I moved it back to RFR.

This is a good starting point, but it will need additional work, possibly in the native D3D code as well as on the Java side, to fully cleanup and recreate all of the resources after the device is recreated. As discussed offline, I'll take a stab at this using your PR as a starting point.

I ran some tests this afternoon. It does detect that the devide was removed, and the disposes and recreates the device, but then it has problem drawing anything with a texture; it throws an exception and there are rendering artifacts:

KCR: create resource factor for screen 0
D3DContext::testCooperativeLevel
D3DContext::testCooperativeLevel
D3DContext::testCooperativeLevel
D3DContext::testCooperativeLevel
D3DContext::testCooperativeLevel
KCR: D3DERR_DEVICEREMOVED
KCR: dispose graphics pipeline
KCR: instance is null: reinitialize D3DPipeline
Exception in thread "JavaFX Application Thread" java.lang.NullPointerException: Cannot invoke "com.sun.prism.GraphicsPipeline.is3DSupported()" because the return value of "com.sun.prism.GraphicsPipeline.getPipeline()" is null
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.isSupported(QuantumToolkit.java:1209)
	at javafx.graphics/com.sun.javafx.application.PlatformImpl.isSupportedImpl(PlatformImpl.java:979)
	at javafx.graphics/com.sun.javafx.application.PlatformImpl.isSupported(PlatformImpl.java:646)
	at javafx.graphics/javafx.application.Platform.isSupported(Platform.java:262)
	at javafx.graphics/com.sun.javafx.scene.input.PickResultChooser.processOffer(PickResultChooser.java:182)
	at javafx.graphics/com.sun.javafx.scene.input.PickResultChooser.offer(PickResultChooser.java:143)
	at javafx.graphics/javafx.scene.Node.intersects(Node.java:5229)
	at javafx.graphics/javafx.scene.Node$1.intersects(Node.java:553)
	at javafx.graphics/com.sun.javafx.scene.NodeHelper.intersects(NodeHelper.java:258)
	at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3227)
        ...
	at javafx.graphics/javafx.scene.Scene.pick(Scene.java:2031)
	at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3810)
	at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1851)
	at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2584)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:409)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:299)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:447)
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:413)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:446)
	at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:556)
	at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:942)
	at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
	at java.base/java.lang.Thread.run(Thread.java:832)
...
KCR: create resource factor for screen 0
D3DContext::testCooperativeLevel
D3DContext::testCooperativeLevel
KCR: dispose graphics pipeline
![HelloFontSize](https://user-images.githubusercontent.com/34689748/107589656-568bf000-6bbb-11eb-9c0d-bea50b190d4d.png)

-------------

PR: https://git.openjdk.java.net/jfx/pull/315