1 /* 2 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 import java.awt.AlphaComposite; 26 import java.awt.Color; 27 import java.awt.Graphics2D; 28 import java.awt.GraphicsConfiguration; 29 import java.awt.GraphicsEnvironment; 30 import java.awt.image.BufferedImage; 31 import java.awt.image.VolatileImage; 32 33 /** 34 * @test 35 * @key headful 36 * @bug 8000629 37 * @author Sergey Bylokhov 38 */ 39 public final class FlipDrawImage { 40 41 private static final int width = 400; 42 private static final int height = 400; 43 44 public static void main(final String[] args) { 45 GraphicsEnvironment ge = 46 GraphicsEnvironment.getLocalGraphicsEnvironment(); 47 GraphicsConfiguration gc = 48 ge.getDefaultScreenDevice().getDefaultConfiguration(); 49 VolatileImage vi = gc.createCompatibleVolatileImage(width, height); 50 final BufferedImage bi = new BufferedImage(width, height, 51 BufferedImage.TYPE_INT_ARGB); 52 while (true) { 53 vi.validate(gc); 54 Graphics2D g2d = vi.createGraphics(); 55 g2d.setColor(Color.red); 56 g2d.fillRect(0, 0, width, height); 57 g2d.setColor(Color.green); 58 g2d.fillRect(0, 0, width / 2, height / 2); 59 g2d.dispose(); 60 61 if (vi.validate(gc) != VolatileImage.IMAGE_OK) { 62 try { 63 Thread.sleep(100); 64 } catch (InterruptedException ignored) { 65 } 66 continue; 67 } 68 69 Graphics2D g = bi.createGraphics(); 70 g.setComposite(AlphaComposite.Src); 71 g.setColor(Color.BLUE); 72 g.fillRect(0, 0, width, height); 73 // destination width and height are flipped and scale is used. 74 g.drawImage(vi, width / 2, height / 2, -width / 2, -height / 2, 75 null, null); 76 g.dispose(); 77 78 if (vi.contentsLost()) { 79 try { 80 Thread.sleep(100); 81 } catch (InterruptedException ignored) { 82 } 83 continue; 84 } 85 86 for (int x = 0; x < width; ++x) { 87 for (int y = 0; y < height; ++y) { 88 if (x < width / 2 && y < height / 2) { 89 if (x >= width / 4 && y >= height / 4) { 90 if (bi.getRGB(x, y) != Color.green.getRGB()) { 91 throw new RuntimeException("Test failed."); 92 } 93 } else if (bi.getRGB(x, y) != Color.red.getRGB()) { 94 throw new RuntimeException("Test failed."); 95 } 96 } else { 97 if (bi.getRGB(x, y) != Color.BLUE.getRGB()) { 98 throw new RuntimeException("Test failed."); 99 } 100 } 101 } 102 } 103 break; 104 } 105 } 106 }