Bug 589

Created attachment 351 [details]
test1.log

Created attachment 352 [details]
test2.log

Do you reproduce the same problem with a plan java.awt.Canvas? I would like to know whether this bug really comes from JOGL (or from AWT).

No, adding the canvas below to a java.awt.Frame paints and resizes as expected:

public static class SimpleCanvas extends java.awt.Canvas {
        @Override
        public void paint(Graphics g) {
            int w = getWidth();
            int h = getHeight();
            g.setColor(Color.RED);
            g.fillOval(10, 10, w - 20, h - 20);
        }
    }

Added unit tests (enhancements and new ones) trying to [visually] cover
this situation using screenshots.

See JOGL commit c03ad260aea0b4a640a5eeb50a206688c531b591,
especially test case:
  com.jogamp.opengl.test.junit.jogl.util.texture.TestGLReadBufferUtilTextureIOWrite02AWT

Let's use these screenshots and test cases to analyze the behavior.

Your setup:
  - Mac OS X 10.7.4 (os), 
  - Java Version: 1.7.0_06-ea, VM: Java HotSpot(TM) 64-Bit Server VM
  - GL_RENDERER    NVIDIA GeForce 9400M OpenGL Engine
    GL_VERSION     2.1 NVIDIA-7.18.18
    GLSL           true, has-compiler: true, version: 1.20


Ours default: <https://jogamp.org/chuck/job/jogl/770/label=macosx-10_6-x86_64-nvidia/consoleText>
  - Mac OS X 10.7.4 (os),
  - Java Version: 1.6.0_33, VM: Java HotSpot(TM) 64-Bit Server VM
  - GL_RENDERER    NVIDIA GeForce 320M OpenGL Engine
    GL_VERSION     2.1 NVIDIA-7.18.18
    GLSL           true, has-compiler: true, version: 1.20

Will also test w/ Java 1.7* ofc. ..

Lets check the results of the new builds staring from b771:
  <https://jogamp.org/chuck/view/fwd/job/jogl/771/>

Test files and log (sections) of interest:
  - com.jogamp.opengl.test.junit.jogl.util.texture.TestGLReadBufferUtilTextureIOWrite02AWT
  - TestGLReadBufferUtilTextureIOWrite02AWT.*.png

(In reply to comment #5)
>  
> com.jogamp.opengl.test.junit.jogl.util.texture.TestGLReadBufferUtilTextureIOWrite02AWT

Above test triggers a NPE (w/ offscreen layer use, resize -> recreate) .. 
The new tests allows us to nail it down, stay tuned :)

(In reply to comment #6)
> (In reply to comment #5)
> >  
> > com.jogamp.opengl.test.junit.jogl.util.texture.TestGLReadBufferUtilTextureIOWrite02AWT
> 
> Above test triggers a NPE (w/ offscreen layer use, resize -> recreate) .. 
> The new tests allows us to nail it down, stay tuned :)

Fixed the NPE, good cleanup for stability catching destruction cases unhandled yet.

Now the test case reproduces your experience w/ java7
while working flawless w/ java6 - both using the offscreen layering.
(Ofc w/ java7 no onscreen rendering is available)

Minor note: the resize width is wrong on OSX.

+++

Interesting piece is that even though the screenshot does show 
a resized picture, but on the actual screen it stays small.
In some test run it freezes/deadlocks at: AWT-EventQueue-0:
  at jogamp.opengl.macosx.cgl.CGL.setNSOpenGLLayerSwapInterval(Native Method)
  at jogamp.opengl.macosx.cgl.MacOSXCGLContext$NSOpenGLImpl.setSwapInterval(MacOSXCGLContext.java:589)
  at jogamp.opengl.macosx.cgl.MacOSXCGLContext.setSwapIntervalImpl(MacOSXCGLContext.java:296)
  at javax.media.opengl.GLContext.setSwapInterval(GLContext.java:628)
  at jogamp.opengl.gl4.GL4bcImpl.setSwapInterval(GL4bcImpl.java:34143)
  at com.jogamp.opengl.test.junit.jogl.demos.es2.GearsES2.init(GearsES2.java:177)

+++

Will dig into it deeper ..

Fixed.

OSXUtil.CreateCALayer*(..) needs to have the layer target size (if known)
otherwise it's possible openjdk7 uses a zero sized CALayer.

+++

Tested against:
  openjdk version "1.7.0-jdk7u5-b30"
  OpenJDK Runtime Environment (build 1.7.0-jdk7u5-b30-20120621)
  OpenJDK 64-Bit Server VM (build 23.2-b05, mixed mode)
and
  java version "1.6.0_33"
  Java(TM) SE Runtime Environment (build 1.6.0_33-b03-424-11M3720)
  Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03-424, mixed mode)

Thanks! I can confirm the fix with my setup. Though there still is a difference between jdk6 and jdk7. During resizing with jdk7 the canvas is flickering heavily, in fact, when resizing its more like the animation  disappears and reappears after resizing has finished. jdk6 resizing goes smoothly without disturbing the animation and without any noticeable flickering.