| /* |
| * Copyright (c) 2007, 2008, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6648018 6652662 |
| * @summary Verifies that rendering to a cached onscreen Graphics works |
| * @author Dmitri.Trembovetski@sun.com: area=Graphics |
| * @run main/othervm RenderingToCachedGraphicsTest |
| * @run main/othervm -Dsun.java2d.d3d=false RenderingToCachedGraphicsTest |
| */ |
| import java.awt.Canvas; |
| import java.awt.Color; |
| import java.awt.Frame; |
| import java.awt.Graphics; |
| import java.awt.GraphicsEnvironment; |
| import java.awt.Point; |
| import java.awt.Rectangle; |
| import java.awt.Robot; |
| import java.awt.Toolkit; |
| import java.awt.event.WindowAdapter; |
| import java.awt.event.WindowEvent; |
| import java.awt.image.BufferStrategy; |
| import java.awt.image.BufferedImage; |
| import static java.awt.image.VolatileImage.*; |
| import java.awt.image.VolatileImage; |
| import java.io.File; |
| import java.util.concurrent.CountDownLatch; |
| import javax.imageio.ImageIO; |
| |
| public class RenderingToCachedGraphicsTest extends Frame { |
| private static volatile boolean failed = false; |
| private static volatile CountDownLatch latch; |
| private Graphics cachedGraphics; |
| private Canvas renderCanvas; |
| |
| public RenderingToCachedGraphicsTest() { |
| super("Test starts in 2 seconds"); |
| renderCanvas = new Canvas() { |
| @Override |
| public void paint(Graphics g) { |
| if (getWidth() < 100 || getHeight() < 100) { |
| repaint(); |
| return; |
| } |
| // wait for a bit so that Vista's Window manager's animation |
| // effects on window's appearance are completed (6652662) |
| try { Thread.sleep(2000); } catch (InterruptedException ex) {} |
| |
| try { |
| runTest(); |
| } catch (Throwable t) { |
| failed = true; |
| } finally { |
| latch.countDown(); |
| } |
| } |
| @Override |
| public void update(Graphics g) {} |
| }; |
| |
| add("Center", renderCanvas); |
| } |
| |
| private void runTest() { |
| // this will cause screen update manager to dump the accelerated surface |
| // for this canvas |
| renderCanvas.createBufferStrategy(2); |
| BufferStrategy bs = renderCanvas.getBufferStrategy(); |
| do { |
| Graphics bsg = bs.getDrawGraphics(); |
| bsg.setColor(Color.blue); |
| bsg.fillRect(0, 0, |
| renderCanvas.getWidth(), renderCanvas.getHeight()); |
| } while (bs.contentsLost() || bs.contentsRestored()); |
| |
| // grab the "unaccelerated" onscreen surface |
| cachedGraphics = renderCanvas.getGraphics(); |
| cachedGraphics.setColor(Color.red); |
| cachedGraphics.fillRect(0, 0, getWidth(), getHeight()); |
| |
| bs.dispose(); |
| bs = null; |
| // now the update manager should be able to accelerate onscreen |
| // rendering to it again |
| |
| cachedGraphics.setColor(Color.green); |
| // this causes restoration of the new accelerated onscreen surface |
| // (it is created in "lost" state) |
| cachedGraphics.fillRect(0, 0, |
| renderCanvas.getWidth(), |
| renderCanvas.getHeight()); |
| Toolkit.getDefaultToolkit().sync(); |
| // and now we should be able to render to it |
| cachedGraphics.fillRect(0, 0, |
| renderCanvas.getWidth(), |
| renderCanvas.getHeight()); |
| Toolkit.getDefaultToolkit().sync(); |
| |
| Robot robot = null; |
| try { |
| robot = new Robot(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| failed = true; |
| return; |
| } |
| |
| Point p = renderCanvas.getLocationOnScreen(); |
| Rectangle r = new Rectangle(p.x, p.y, |
| renderCanvas.getWidth(), |
| renderCanvas.getHeight()); |
| BufferedImage bi = robot.createScreenCapture(r); |
| for (int y = 0; y < bi.getHeight(); y++) { |
| for (int x = 0; x < bi.getWidth(); x++) { |
| if (bi.getRGB(x, y) != Color.green.getRGB()) { |
| System.err.println("Colors mismatch!"); |
| String name = "RenderingToCachedGraphicsTest.png"; |
| try { |
| ImageIO.write(bi, "png", new File(name)); |
| System.err.println("Dumped grabbed image to: "+name); |
| } catch (Exception e) {} |
| failed = true; |
| return; |
| } |
| } |
| } |
| } |
| |
| public static void main(String[] args) { |
| int depth = GraphicsEnvironment.getLocalGraphicsEnvironment(). |
| getDefaultScreenDevice().getDefaultConfiguration(). |
| getColorModel().getPixelSize(); |
| if (depth < 16) { |
| System.out.println("Test PASSED (depth < 16bit)"); |
| return; |
| } |
| |
| latch = new CountDownLatch(1); |
| RenderingToCachedGraphicsTest t1 = new RenderingToCachedGraphicsTest(); |
| t1.pack(); |
| t1.setSize(300, 300); |
| t1.setVisible(true); |
| |
| try { latch.await(); } catch (InterruptedException ex) {} |
| t1.dispose(); |
| |
| if (failed) { |
| throw new |
| RuntimeException("Failed: rendering didn't show up"); |
| } |
| System.out.println("Test PASSED"); |
| } |
| } |