Attachment 262 Details for Bug 500 – test program showing a bug for getGL4() method

test program showing a bug for getGL4() method

GL4Bug.java (text/plain), 2.69 KB, created by Job Zwiers on 2011-08-03 11:42:04 CEST

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Creator: Job Zwiers

Created: 2011-08-03 11:42:04 CEST

Size: 2.69 KB

patch

obsolete

>package gl4bug;
>import java.awt.*;
>import java.awt.event.*;
>import javax.media.opengl.*;      
>import javax.media.opengl.awt.*;  
>
>/**
> * Shows a bug (?) with the combination GLProfile.get(GLProfile.GL4) / GL4 gl = drawable.getGL().getGL4();
>   In that case the stacktrace starts like:
>
>     [java] Exception in thread "AWT-EventQueue-0" javax.media.opengl.GLException: Not a GL4 implementation
>     [java] 	at jogamp.opengl.gl4.GL4bcImpl.getGL4(GL4bcImpl.java:32456)
>     [java] 	at firstopengl.GL4Bug.init(GL4Bug.java:31)
>     [java] 	at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:132)
>     
>   In all other cases everything looks ok, and for instance GL4 gl = (GL4) drawable.getGL(); works, and 
>   correctly reports an OpenGL version 4.1.0. 
>   
>   Similar code but with GLProfile.get(GLProfile.GL3) / GL3 gl = drawable.getGL().getGL3() shows version 3.3.0 and works ok.
>   
>   Tested with NVidia GTX 460 and GTX 560, driver version 275.33, on Windows 7 64-bit/32-bit Java 1.6.0_26
>   Jogl versions: jogl-2.0-b23-20110303-windows-i586.7z and jogl-2.0-b417-20110802-windows-i586.7z
>
> */
>public class GL4Bug implements GLEventListener  {
>
>   public GL4Bug() {
>      //GLProfile glp = GLProfile.getDefault();       // This works ok, and reports OGL version 4.1.0 later on
>      //GLProfile glp = GLProfile.get(GLProfile.GL3); // This works ok, but will report OGL version 3.3.0 later on
>      GLProfile glp = GLProfile.get(GLProfile.GL4);   // ===> This will fail later on, but ONLY with the getGL4() call, not with (GL4) drawable.getGL()
>      GLCapabilities caps = new GLCapabilities(glp);
>      GLCanvas canvas = new GLCanvas(caps);
>      canvas.addGLEventListener(this);
>      
>      Frame frame = new Frame();
>      frame.addWindowListener(new WindowAdapter() {
>         public void windowClosing(WindowEvent e) {  System.exit(0);  }
>      });
>      frame.setSize(256, 128);
>      frame.setLocation(256, 256);
>      frame.add(canvas);
>      frame.setVisible(true); 
>   }
> 
>   public void init(GLAutoDrawable drawable) {
>      GL4 gl = drawable.getGL().getGL4();       // this fails for GLProfile.get(GLProfile.GL4), but works ok for GLProfile.getDefault()
>      //GL4 gl = (GL4) drawable.getGL();   // This always works ok, next line will print correct version 4.1.0 (or 3.3.0 for GLProfile.GL3)
>      System.out.println("GLVERSION: " + gl.glGetString(GL.GL_VERSION));
>
>   }
>
>   public void dispose(GLAutoDrawable drawable) { }
>   public void reshape(GLAutoDrawable gl, int x, int y, int width, int height) { }
>   public void display(GLAutoDrawable drawable) { }
>
>   public static void main(String[] arg) {     
>      GLProfile.initSingleton(false);	
>      new GL4Bug();
>   }
>}

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Attachments on bug 500: 262