import javax.swing.*;
import java.awt.*;
import net.java.games.jogl.*;
import net.java.games.jogl.util.*;

/**
 * This class demonstrates that Automatic detection
 * of ATI Video Cards for ATI WORKAROUND work really
 * fine on first GLCanvas created but leads to 
 * NullPointerException of DummyGL (in best cases)
 * and sometimes to JVM Crash with ACCESS_VIOLATION_EXCEPTION
 * raised from my atioglxx.dll. This is with my actual (just be4 lattest)
 * ATI drivers for my RADEON 9700.
 * <br>
 * Uncomment ATI_WORKAROUND System variable setting to show the Bug.
 * If not commented you can see it works properly.
 *
 * @author  sebastien Wirth alias Fmpc77
 */
public class TestMulti {
   
   
   public TestMulti() {
   }
   
   /**
    * @param args the command line arguments
    */
   void go(){
      /*############ Comment this line 
       *############ to c Automatic ATI Detection Failure on 2nd GLCanvas */       
      System.setProperty("ATI_WORKAROUND", "true");
      
      //////////////////////////////////////////////
      // FIRST GLCANVAS FRAMEWORK
      //////////////////////////////////////////////
      
      JFrame window1 = new JFrame("Window1");
      window1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      //      window1.setResizable(false);
      
      GLCapabilities cap1 = new GLCapabilities();
      //      cap.setSampleBuffers(true);
      //      cap.setNumSamples(4);
      GLCanvas canvas1 = GLDrawableFactory.getFactory().createGLCanvas( cap1 );
      canvas1.setSize(320,180);
      canvas1.addGLEventListener( new SimpleGLEventListener("SimpleListener 1") );
      
      Animator animator1 = new Animator(canvas1);
      
      window1.getContentPane().add(canvas1);
      window1.pack();
      window1.setVisible(true);
      
      animator1.start();
      
      
      //////////////////////////////////////////////
      // SECOND GLCANVAS
      //////////////////////////////////////////////
      
      JFrame window2 = new JFrame("Window2");
      window2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      
      GLCapabilities cap2 = new GLCapabilities();
      GLCanvas canvas2 = GLDrawableFactory.getFactory().createGLCanvas( cap2 );
      canvas2.setSize(320,180);
      canvas2.addGLEventListener( new SimpleGLEventListener("SimpleListener 2") );
      
      Animator animator2 = new Animator(canvas2);
      
      window2.getContentPane().add(canvas2);
      window2.pack();
      window2.setVisible(true);
      
      animator2.start();
   }
   
   public static void main(String[] args) {
      new TestMulti().go();
   }
   
   class SimpleGLEventListener implements GLEventListener{
      private String name;
      private GLUT glut = new GLUT();
      
      SimpleGLEventListener(String inName){
         name = inName;
      }
      
      public void display(net.java.games.jogl.GLDrawable gLDrawable) {
         gLDrawable.getGL().glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
         gLDrawable.getGL().glClear(GL.GL_COLOR_BUFFER_BIT);
         
         gLDrawable.getGL().glColor3f(1f, 0f,0f);
         gLDrawable.getGL().glWindowPos2f(10f, 10f);
         
         glut.glutBitmapString(gLDrawable.getGL(), GLUT.BITMAP_9_BY_15, "Hi I am "+name);
      }
      
      public void displayChanged(net.java.games.jogl.GLDrawable gLDrawable, boolean param, boolean param2) {
      }
      
      public void init(net.java.games.jogl.GLDrawable gLDrawable) {
      }
      
      public void reshape(net.java.games.jogl.GLDrawable gLDrawable, int param, int param2, int param3, int param4) {
      }
      
   }
}