CLBuffer released after resize

[dietzc]

When resize and maximize the frame which contains ClearVolume I experience the following error in the KNIME integration:

DefaultEDT.run(): Caught exception occured on thread AWT-EventQueue-0-Display-.x11_:0.0-1-EDT-1: RunnableTask[executed true, tTotal 7 ms, tExec 6 ms, tQueue 1 ms, attachment null, throwable javax.media.opengl.GLException: Caught RuntimeException: This CLBuffer has been manually released and can't be used anymore ! on thread AWT-EventQueue-0-Display-.x11_:0.0-1-EDT-1]
javax.media.opengl.GLException: Caught RuntimeException: This CLBuffer has been manually released and can't be used anymore ! on thread AWT-EventQueue-0-Display-.x11_:0.0-1-EDT-1
    at javax.media.opengl.GLException.newGLException(GLException.java:75)
    at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1311)
    at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1131)
    at com.jogamp.newt.opengl.GLWindow.display(GLWindow.java:675)
    at jogamp.opengl.GLAutoDrawableBase.defaultWindowResizedOp(GLAutoDrawableBase.java:258)
    at com.jogamp.newt.opengl.GLWindow.access$200(GLWindow.java:119)
    at com.jogamp.newt.opengl.GLWindow$2.windowResized(GLWindow.java:141)
    at jogamp.newt.WindowImpl.consumeWindowEvent(WindowImpl.java:3674)
    at jogamp.newt.WindowImpl.sendWindowEvent(WindowImpl.java:3608)
    at jogamp.newt.WindowImpl.setVisibleActionImpl(WindowImpl.java:1001)
    at jogamp.newt.WindowImpl$VisibleAction.run(WindowImpl.java:1013)
    at jogamp.newt.DisplayImpl.runOnEDTIfAvail(DisplayImpl.java:434)
    at jogamp.newt.WindowImpl.runOnEDTIfAvail(WindowImpl.java:2125)
    at jogamp.newt.WindowImpl.setVisible(WindowImpl.java:1022)
    at jogamp.newt.WindowImpl.setVisible(WindowImpl.java:1027)
    at com.jogamp.newt.opengl.GLWindow.setVisible(GLWindow.java:494)
    at jogamp.newt.awt.event.AWTParentWindowAdapter$2.run(AWTParentWindowAdapter.java:179)
    at com.jogamp.common.util.RunnableTask.run(RunnableTask.java:133)
    at jogamp.newt.DefaultEDTUtil$NEDT.run(DefaultEDTUtil.java:371)
Caused by: java.lang.RuntimeException: This CLBuffer has been manually released and can't be used anymore !
    at com.nativelibs4java.opencl.CLAbstractEntity.checkNullity(CLAbstractEntity.java:130)
    at com.nativelibs4java.opencl.CLAbstractEntity.getEntity(CLAbstractEntity.java:134)
    at com.nativelibs4java.opencl.CLKernel.setArg(CLKernel.java:406)
    at com.nativelibs4java.opencl.CLKernel.setObjectArg(CLKernel.java:201)
    at com.nativelibs4java.opencl.CLKernel.setArgs(CLKernel.java:191)
    at clearvolume.renderer.opencl.OpenCLDevice.setArgs(OpenCLDevice.java:344)
    at clearvolume.renderer.opencl.OpenCLVolumeRenderer.runKernel(OpenCLVolumeRenderer.java:413)
    at clearvolume.renderer.opencl.OpenCLVolumeRenderer.updateBufferAndRunKernel(OpenCLVolumeRenderer.java:361)
    at clearvolume.renderer.opencl.OpenCLVolumeRenderer.renderVolume(OpenCLVolumeRenderer.java:256)
    at clearvolume.renderer.cleargl.ClearGLVolumeRenderer.displayInternal(ClearGLVolumeRenderer.java:731)
    at clearvolume.renderer.cleargl.ClearGLVolumeRenderer.display(ClearGLVolumeRenderer.java:667)
    at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:690)
    at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:672)
    at jogamp.opengl.GLAutoDrawableBase$2.run(GLAutoDrawableBase.java:441)
    at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1277)
    ... 17 more

[royerloic]

I think I know why this is happening, I guess it happens rarely right?
I need to add some locking to prevent stale buffers from being used before
the new ones are allocated. I am on it.

[fjug]

Christian, could you say a few words more on when the error occurs and how persistent this happens?

[dietzc]

as I said, whenever I make the frame containing ClearVolume full-screen and afterwards "non-fullscreen" again, the error occurs.

[royerloic]

Ok, got it :-)