95 lines
3.3 KiB
Java
95 lines
3.3 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.AlphaComposite;
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.GraphicsConfiguration;
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import java.awt.GraphicsEnvironment;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.awt.image.VolatileImage;
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import static java.awt.Transparency.BITMASK;
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/**
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* @test
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* @key headful
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* @bug 7188942
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* @summary We should get correct volatile image, when we use BITMASK
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* transparency
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*/
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public final class BitmaskVolatileImage {
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public static final int S = 8;
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public static void main(final String[] args) {
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GraphicsConfiguration gc =
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GraphicsEnvironment.getLocalGraphicsEnvironment()
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.getDefaultScreenDevice().getDefaultConfiguration();
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VolatileImage vi = gc.createCompatibleVolatileImage(S, S, BITMASK);
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BufferedImage ci = gc.createCompatibleImage(S, S, BITMASK);
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int attempt = 0;
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do {
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if (++attempt > 10) {
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throw new RuntimeException("Too many attempts: " + attempt);
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}
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vi.validate(gc);
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test(vi, ci, gc);
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} while (vi.contentsLost());
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}
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private static void test(VolatileImage vi, BufferedImage ci, GraphicsConfiguration gc) {
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for (int r = 0; r <= 255; ++r) {
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for (int a = 0; a <= 255; ++a) {
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fill(vi, new Color(r, 0, 0, a));
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fill(ci, new Color(r, 0, 0, a));
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validate(ci, vi.getSnapshot());
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}
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}
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}
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private static void fill(Image image, Color color) {
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Graphics2D g2d = (Graphics2D) image.getGraphics();
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g2d.setColor(color);
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g2d.setComposite(AlphaComposite.Src);
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g2d.fillRect(0, 0, S, S);
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g2d.dispose();
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}
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private static void validate(BufferedImage ci, BufferedImage snapshot) {
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for (int y = 0; y < ci.getHeight(); y++) {
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for (int x = 0; x < ci.getWidth(); x++) {
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int ci_rgb = ci.getRGB(x, y);
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int vi_rgb = snapshot.getRGB(x, y);
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if (ci_rgb != vi_rgb) {
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System.err.println("Exp:" + Integer.toHexString(ci_rgb));
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System.err.println("Actual:" + Integer.toHexString(vi_rgb));
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throw new RuntimeException("Colors mismatch!");
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}
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}
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}
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}
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}
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