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 * Copyright 2010 JogAmp Community. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 * 
 *    1. Redistributions of source code must retain the above copyright notice, this list of
 *       conditions and the following disclaimer.
 * 
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list
 *       of conditions and the following disclaimer in the documentation and/or other materials
 *       provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */
 package com.jogamp.opengl.test.junit.jogl.demos.gl2.awt;

import javax.media.opengl.*;

import com.jogamp.opengl.util.FPSAnimator;

import javax.media.opengl.awt.GLJPanel;
import javax.media.opengl.glu.gl2.GLUgl2;

import com.jogamp.opengl.test.junit.jogl.demos.gl2.Gears;
import com.jogamp.opengl.test.junit.util.UITestCase;
import java.awt.AWTException;
import java.awt.BorderLayout;
import java.lang.reflect.InvocationTargetException;
import java.nio.ByteBuffer;

import javax.swing.JFrame;
import javax.swing.SwingUtilities;

import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.AfterClass;
import org.junit.Test;

/**
 * Test for bug 450, which causes the right part of the frame to be black
 * for all x >= height.
 * 
 * Draws the Gears demo in a window that's twice as wide than it is tall,
 * and checks to see if a particular pixel in the right half of the frame
 * is colored.
 *
 * @author Wade Walker (adapted from TestGearsGLJPanelAWT)
 */
public class TestGearsGLJPanelAWTBug450 extends UITestCase {
    static GLProfile glp;
    static int width, height;
    /** Set this if test fails. Needed because we can't throw an exception
     * all the way up the stack from where we test the pixel. */
    static boolean failed;

    @BeforeClass
    public static void initClass() {
        if(GLProfile.isAvailable(GLProfile.GL2)) {
            glp = GLProfile.get(GLProfile.GL2);
            Assert.assertNotNull(glp);
            width  = 512;
            height = 256;
        } else {
            setTestSupported(false);
        }
    }

    @AfterClass
    public static void releaseClass() {
    }

    protected void runTestGL(GLCapabilities caps)
            throws AWTException, InterruptedException, InvocationTargetException
    {
        JFrame frame = new JFrame("Swing GLJPanel");
        Assert.assertNotNull(frame);

        GLJPanel glJPanel = new GLJPanel(caps);
        Assert.assertNotNull(glJPanel);
        glJPanel.addGLEventListener(new Gears() {
            @Override
            public void display(GLAutoDrawable drawable) {
                super.display(drawable);
                // look at one pixel at the bottom of the frame, just right of
                // the center line, and make sure it's not black
                GL2 gl = GLUgl2.getCurrentGL2();
                ByteBuffer bytebuffer = ByteBuffer.allocateDirect( 3 );
                gl.glReadPixels( 260, 10, 1, 1, GL2.GL_BGR, GL2.GL_UNSIGNED_BYTE, bytebuffer );
                byte byte0 = bytebuffer.get( 0 );
                byte byte1 = bytebuffer.get( 1 );
                byte byte2 = bytebuffer.get( 2 );
                if( (byte0 == 0) && (byte1 == 0) && (byte2 == 0) )
                    failed = true;
            }
        });

        FPSAnimator animator = new FPSAnimator(glJPanel, 60);

        final JFrame _frame = frame;
        final GLJPanel _glJPanel = glJPanel;
        SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    _frame.getContentPane().add(_glJPanel, BorderLayout.CENTER);
                    _frame.setSize(width, height);
                    _frame.setVisible(true);
                } } ) ;

        animator.setUpdateFPSFrames(1, null);        
        animator.start();
        Assert.assertEquals(true, animator.isAnimating());

        while(animator.isAnimating() && animator.getTotalFPSDuration()<duration) {
            Thread.sleep(100);
        }

        Assert.assertNotNull(frame);
        Assert.assertNotNull(glJPanel);
        Assert.assertNotNull(animator);

        animator.stop();
        Assert.assertEquals(false, animator.isAnimating());
        SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    _frame.setVisible(false);
                    _frame.getContentPane().remove(_glJPanel);
                    _frame.remove(_glJPanel);
                    _glJPanel.destroy();
                    _frame.dispose();
                } } );

        Assert.assertFalse( failed );
    }

    @Test
    public void test01()
            throws AWTException, InterruptedException, InvocationTargetException
    {
        GLCapabilities caps = new GLCapabilities(GLProfile.getDefault());
        runTestGL(caps);
    }

    static long duration = 500; // ms

    public static void main(String args[]) {
        for(int i=0; i<args.length; i++) {
            if(args[i].equals("-time")) {
                i++;
                try {
                    duration = Integer.parseInt(args[i]);
                } catch (Exception ex) { ex.printStackTrace(); }
            }
        }
        org.junit.runner.JUnitCore.main(TestGearsGLJPanelAWTBug450.class.getName());
    }
}
