| /* |
| * Copyright (c) 2015, 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. |
| */ |
| |
| import java.awt.AlphaComposite; |
| import java.awt.Color; |
| import java.awt.Graphics2D; |
| import java.awt.GraphicsConfiguration; |
| import java.awt.GraphicsEnvironment; |
| import java.awt.Image; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.VolatileImage; |
| |
| import static java.awt.Transparency.BITMASK; |
| |
| /** |
| * @test |
| * @key headful |
| * @bug 7188942 |
| * @summary We should get correct volatile image, when we use BITMASK |
| * transparency |
| */ |
| public final class BitmaskVolatileImage { |
| |
| public static final int S = 8; |
| |
| public static void main(final String[] args) { |
| GraphicsConfiguration gc = |
| GraphicsEnvironment.getLocalGraphicsEnvironment() |
| .getDefaultScreenDevice().getDefaultConfiguration(); |
| VolatileImage vi = gc.createCompatibleVolatileImage(S, S, BITMASK); |
| BufferedImage ci = gc.createCompatibleImage(S, S, BITMASK); |
| |
| int attempt = 0; |
| do { |
| if (++attempt > 10) { |
| throw new RuntimeException("Too many attempts: " + attempt); |
| } |
| vi.validate(gc); |
| test(vi, ci, gc); |
| } while (vi.contentsLost()); |
| } |
| |
| private static void test(VolatileImage vi, BufferedImage ci, GraphicsConfiguration gc) { |
| for (int r = 0; r <= 255; ++r) { |
| for (int a = 0; a <= 255; ++a) { |
| fill(vi, new Color(r, 0, 0, a)); |
| fill(ci, new Color(r, 0, 0, a)); |
| validate(ci, vi.getSnapshot()); |
| } |
| } |
| } |
| |
| private static void fill(Image image, Color color) { |
| Graphics2D g2d = (Graphics2D) image.getGraphics(); |
| g2d.setColor(color); |
| g2d.setComposite(AlphaComposite.Src); |
| g2d.fillRect(0, 0, S, S); |
| g2d.dispose(); |
| } |
| |
| private static void validate(BufferedImage ci, BufferedImage snapshot) { |
| for (int y = 0; y < ci.getHeight(); y++) { |
| for (int x = 0; x < ci.getWidth(); x++) { |
| int ci_rgb = ci.getRGB(x, y); |
| int vi_rgb = snapshot.getRGB(x, y); |
| if (ci_rgb != vi_rgb) { |
| System.err.println("Exp:" + Integer.toHexString(ci_rgb)); |
| System.err.println("Actual:" + Integer.toHexString(vi_rgb)); |
| throw new RuntimeException("Colors mismatch!"); |
| } |
| } |
| } |
| } |
| } |