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package com.jogamp.opengl.test.junit.jogl.awt;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import java.lang.reflect.InvocationTargetException;
import com.jogamp.opengl.GL;
import com.jogamp.opengl.GL2;
import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLDrawableFactory;
import com.jogamp.opengl.GLEventListener;
import com.jogamp.opengl.GLOffscreenAutoDrawable;
import com.jogamp.opengl.GLProfile;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import org.junit.Assert;
import org.junit.Test;
import org.junit.FixMethodOrder;
import org.junit.runners.MethodSorters;
import com.jogamp.opengl.test.junit.util.UITestCase;
import com.jogamp.opengl.util.awt.AWTGLReadBufferUtil;
/**
* Tests for bug 461, a failure of PBuffer GLDrawableFactory.createOffscreenAutoDrawable(..) on Windows
* when the stencil buffer is turned on.
*
* @author Wade Walker (from code sample provided by Owen Dimond), et al.
*/
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class TestBug461PBufferSupersamplingSwingAWT extends UITestCase implements GLEventListener {
JFrame jframe;
GLOffscreenAutoDrawable offScreenBuffer;
AWTGLReadBufferUtil screenshot;
private void render(final GLAutoDrawable drawable) {
final GL2 gl = drawable.getGL().getGL2();
Assert.assertNotNull(gl);
gl.glClear(GL.GL_COLOR_BUFFER_BIT);
// draw a triangle filling the window
gl.glBegin(GL.GL_TRIANGLES);
gl.glColor3f(1, 0, 0);
gl.glVertex2d(-1, -1);
gl.glColor3f(0, 1, 0);
gl.glVertex2d(0, 1);
gl.glColor3f(0, 0, 1);
gl.glVertex2d(1, -1);
gl.glEnd();
}
/* @Override */
public void init(final GLAutoDrawable drawable) {
screenshot = new AWTGLReadBufferUtil(drawable.getGLProfile(), false);
}
/* @Override */
public void reshape(final GLAutoDrawable drawable, final int x, final int y, final int width, final int height) {
}
/* @Override */
public void display(final GLAutoDrawable drawable) {
render(offScreenBuffer);
final BufferedImage outputImage = screenshot.readPixelsToBufferedImage(drawable.getGL(), 0, 0, 200, 200, true /* awtOrientation */);
Assert.assertNotNull(outputImage);
final ImageIcon imageIcon = new ImageIcon(outputImage);
final JLabel imageLabel = new JLabel(imageIcon);
jframe.getContentPane().add(imageLabel);
}
/* @Override */
public void dispose(final GLAutoDrawable drawable) {
screenshot.dispose(drawable.getGL());
try {
javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
jframe.setVisible(false);
jframe.dispose();
}});
} catch (final Exception e) {
e.printStackTrace();
}
}
@Test
public void test01DefaultOffscreenSupersampling() throws InterruptedException, InvocationTargetException {
final GLProfile glp = GLProfile.get(GLProfile.GL2);
Assert.assertNotNull(glp);
final GLCapabilities glCap = new GLCapabilities(glp);
test(glCap);
}
@Test
public void test02PBufferOffscreenSupersampling() throws InterruptedException, InvocationTargetException {
final GLProfile glp = GLProfile.get(GLProfile.GL2);
Assert.assertNotNull(glp);
final GLCapabilities glCap = new GLCapabilities(glp);
glCap.setPBuffer(true);
test(glCap);
}
void test(final GLCapabilities glCap) throws InterruptedException, InvocationTargetException {
jframe = new JFrame("Offscreen Supersampling");
Assert.assertNotNull(jframe);
jframe.setSize( 300, 300);
jframe.addWindowListener(new WindowAdapter() {
public void windowClosing(final WindowEvent e) {
System.exit(0);
}
});
final GLDrawableFactory fac = GLDrawableFactory.getFactory(glCap.getGLProfile());
Assert.assertNotNull(fac);
// COMMENTING OUT THIS LINE FIXES THE ISSUE.
// Setting this in JOGL1 works. Thus this is a JOGL2 issue.
glCap.setSampleBuffers(true);
glCap.setNumSamples(4);
// Without line below, there is an error on Windows.
glCap.setDoubleBuffered(false);
// Needed for drop shadows
glCap.setStencilBits(1);
//makes a new buffer
offScreenBuffer = fac.createOffscreenAutoDrawable(null, glCap, null, 200, 200);
Assert.assertNotNull(offScreenBuffer);
offScreenBuffer.addGLEventListener(this);
offScreenBuffer.display();
javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
jframe.setVisible(true);
}});
offScreenBuffer.destroy();
}
public static void main(final String args[]) {
org.junit.runner.JUnitCore.main(TestBug461PBufferSupersamplingSwingAWT.class.getName());
}
}