How to use the Debug and Trace GL Pipeline and Debug GL Context

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Debug and Trace GL Pipeline

class MyGLEvenListener extends GLEvenListener {

  static final boolean glDebug = .. ; // enable at your leisure
  static final boolean glTrace = .. ; // enable at your leisure

  static boolean once = false;

  public void init(GLAutoDrawable drawable) {
    GL2ES2 gl2es2;
    if( !once ) {
      once = true;
      GL gl = drawable.getGL();

      if(glDebug) {
          try {
              // Debug ..
              gl = gl.getContext().setGL( GLPipelineFactory.create("javax.media.opengl.Debug", null, gl, null) );
          } catch (Exception e) {e.printStackTrace();}
      }

      if(glTrace) {
          try {
              // Trace ..
              gl = gl.getContext().setGL( GLPipelineFactory.create("javax.media.opengl.Trace", null, gl, new Object[] { System.err } ) );
          } catch (Exception e) {e.printStackTrace();}
      }

      gl2es2 = gl.getGL2ES2();
    } else {
      gl2es2 = drawable.getGL().getGL2ES2();
    }
  }

}

You also can enable 'JVM wide' DebugGL by simply setting property jogl.debug.DebugGL:

  -Djogl.debug.DebugGL

This will also enable the native debug context, see below.

You also can enable 'JVM wide' TraceGL by simply setting property jogl.debug.TraceGL:

  -Djogl.debug.TraceGL


Debug GL Context

If you like to use the native debug context you would need to configure the not yet natively created GLContext:

GLContext ctx = ...; // not yet natively created by 1st makeCurrent()
ctx.setContextCreationFlags(GLContext.CTX_OPTION_DEBUG);

.. or using an GLAutoDrawable implementation:

GLWindow glWin = ... ; // newly create one, not yet visible
glWin.setContextCreationFlags(GLContext.CTX_OPTION_DEBUG);