Better shared GLAutoDrawable synchronization: Block slave instances to also block until all master's GLEventListener.init(..) methods have been called

Better shared GLAutoDrawable synchronization.
Block slave instances to also block until all master's GLEventListener.init(..) methods have been called

- GLSharedContextSetter: Add areAllGLEventListenerInitialized()
  - GLCanvas (SWT, AWT)
  - GLJPanel
  - GLAutoDrawableBase (GLWindow, ..)

- GLDrawableHelper's isSharedGLContextPending(..)
  takes 'areAllGLEventListenerInitialized()' into consideration
  allowing to block the slave creation until master is completed.

This solves teh use case, where the master creates resources in it's
GLEventListener initialization (buffers), which are shared with
it's slaves.

2 files changed, 10 insertions, 0 deletions

diff --git a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
index 7ea216dd9..abf670c95 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
@@ -970,6 +970,11 @@ public class GLCanvas extends Canvas implements AWTGLAutoDrawable, WindowClosing
   }
 
   @Override
+  public boolean areAllGLEventListenerInitialized() {
+     return helper.areAllGLEventListenerInitialized();
+  }
+
+  @Override
   public boolean getGLEventListenerInitState(GLEventListener listener) {
       return helper.getGLEventListenerInitState(listener);
   }
diff --git a/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java b/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
index f7200186b..522585f16 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
@@ -805,6 +805,11 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
   }
 
   @Override
+  public boolean areAllGLEventListenerInitialized() {
+     return helper.areAllGLEventListenerInitialized();
+  }
+
+  @Override
   public boolean getGLEventListenerInitState(GLEventListener listener) {
       return helper.getGLEventListenerInitState(listener);
   }