public static GLOffscreenAutoDrawable newOffscreenDrawable(GLProfile profile) {
GLDrawableFactory drawableFactory = GLDrawableFactory.getFactory(profile);
GLCapabilities caps = new GLCapabilities(profile);
GLOffscreenAutoDrawable offscreenDrawable =
drawableFactory.createOffscreenAutoDrawable(null, caps, null, 1, 1);
// Trigger context creation
offscreenDrawable.display();
return offscreenDrawable;
}
void doTest(final GLCapabilitiesImmutable reqGLCaps, final GLEventListener demo)
throws InterruptedException {
System.out.println("Requested GL Caps: " + reqGLCaps);
final GLDrawableFactory factory = GLDrawableFactory.getFactory(reqGLCaps.getGLProfile());
final GLCapabilitiesImmutable expGLCaps =
GLGraphicsConfigurationUtil.fixGLCapabilities(reqGLCaps, factory, null);
System.out.println("Expected GL Caps: " + expGLCaps);
//
// Create native OpenGL resources .. XGL/WGL/CGL ..
// equivalent to GLAutoDrawable methods: setVisible(true)
//
final GLOffscreenAutoDrawable glad =
factory.createOffscreenAutoDrawable(
null, reqGLCaps, null, widthStep * szStep, heightStep * szStep);
Assert.assertNotNull(glad);
System.out.println(
"Drawable Pre-GL(0): "
+ glad.getClass().getName()
+ ", "
+ glad.getNativeSurface().getClass().getName());
Assert.assertTrue(glad.isRealized());
// Check caps of NativeWindow config w/o GL
final CapabilitiesImmutable chosenCaps = glad.getChosenGLCapabilities();
System.out.println("Drawable Caps Pre_GL : " + chosenCaps);
Assert.assertNotNull(chosenCaps);
Assert.assertTrue(chosenCaps.getGreenBits() > 4);
Assert.assertTrue(chosenCaps.getBlueBits() > 4);
Assert.assertTrue(chosenCaps.getRedBits() > 4);
glad.display(); // force native context creation
// Check caps of GLDrawable after realization
final GLCapabilitiesImmutable chosenGLCaps = glad.getChosenGLCapabilities();
System.out.println("Chosen GL CTX (1): " + glad.getContext().getGLVersion());
System.out.println("Chosen GL Caps(1): " + chosenGLCaps);
System.out.println(
"Chosen GL Caps(2): "
+ glad.getNativeSurface().getGraphicsConfiguration().getChosenCapabilities());
Assert.assertNotNull(chosenGLCaps);
Assert.assertTrue(chosenGLCaps.getGreenBits() > 4);
Assert.assertTrue(chosenGLCaps.getBlueBits() > 4);
Assert.assertTrue(chosenGLCaps.getRedBits() > 4);
Assert.assertTrue(chosenGLCaps.getDepthBits() > 4);
Assert.assertEquals(expGLCaps.isOnscreen(), chosenGLCaps.isOnscreen());
Assert.assertEquals(expGLCaps.isFBO(), chosenGLCaps.isFBO());
Assert.assertEquals(expGLCaps.isPBuffer(), chosenGLCaps.isPBuffer());
Assert.assertEquals(expGLCaps.isBitmap(), chosenGLCaps.isBitmap());
/**
* Single/Double buffer cannot be checked since result may vary .. if(chosenGLCaps.isOnscreen()
* || chosenGLCaps.isFBO()) { // dbl buffer may be disabled w/ offscreen pbuffer and bitmap
* Assert.assertEquals(expGLCaps.getDoubleBuffered(), chosenGLCaps.getDoubleBuffered()); }
*/
glad.addGLEventListener(demo);
final SnapshotGLEventListener snapshotGLEventListener = new SnapshotGLEventListener();
glad.addGLEventListener(snapshotGLEventListener);
glad.display(); // initial resize/display
// 1 - szStep = 2
Assert.assertTrue(
"Size not reached: Expected "
+ (widthStep * szStep)
+ "x"
+ (heightStep * szStep)
+ ", Is "
+ glad.getSurfaceWidth()
+ "x"
+ glad.getSurfaceHeight(),
AWTRobotUtil.waitForSize(glad, widthStep * szStep, heightStep * szStep));
snapshotGLEventListener.setMakeSnapshot();
glad.display();
// 2, 3 (resize + display)
szStep = 1;
glad.setSurfaceSize(widthStep * szStep, heightStep * szStep);
Assert.assertTrue(
"Size not reached: Expected "
+ (widthStep * szStep)
+ "x"
+ (heightStep * szStep)
+ ", Is "
+ glad.getSurfaceWidth()
+ "x"
+ glad.getSurfaceHeight(),
AWTRobotUtil.waitForSize(glad, widthStep * szStep, heightStep * szStep));
snapshotGLEventListener.setMakeSnapshot();
glad.display();
// 4, 5 (resize + display)
szStep = 4;
glad.setSurfaceSize(widthStep * szStep, heightStep * szStep);
Assert.assertTrue(
"Size not reached: Expected "
+ (widthStep * szStep)
+ "x"
+ (heightStep * szStep)
+ ", Is "
+ glad.getSurfaceWidth()
+ "x"
+ glad.getSurfaceHeight(),
AWTRobotUtil.waitForSize(glad, widthStep * szStep, heightStep * szStep));
snapshotGLEventListener.setMakeSnapshot();
glad.display();
Thread.sleep(50);
glad.destroy();
System.out.println("Fin Drawable: " + glad);
}