| /* |
| * Copyright (c) 2014, 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.Rectangle; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.DataBuffer; |
| import java.awt.image.DataBufferByte; |
| import java.awt.image.DataBufferInt; |
| import java.awt.image.DataBufferShort; |
| import java.awt.image.VolatileImage; |
| import java.io.File; |
| import java.io.IOException; |
| |
| import javax.imageio.ImageIO; |
| |
| import static java.awt.Transparency.TRANSLUCENT; |
| import static java.awt.image.BufferedImage.TYPE_INT_ARGB; |
| |
| /** |
| * @test |
| * @bug 8059942 |
| * @summary Tests rotated clip when unmanaged image is drawn to VI. |
| * Results of the blit to compatibleImage are used for comparison. |
| * @author Sergey Bylokhov |
| */ |
| public final class IncorrectUnmanagedImageRotatedClip { |
| |
| public static void main(final String[] args) throws IOException { |
| BufferedImage bi = makeUnmanagedBI(); |
| fill(bi); |
| test(bi); |
| } |
| |
| private static void test(final BufferedImage bi) throws IOException { |
| GraphicsEnvironment ge = GraphicsEnvironment |
| .getLocalGraphicsEnvironment(); |
| GraphicsConfiguration gc = ge.getDefaultScreenDevice() |
| .getDefaultConfiguration(); |
| VolatileImage vi = gc.createCompatibleVolatileImage(500, 200, |
| TRANSLUCENT); |
| BufferedImage gold = gc.createCompatibleImage(500, 200, TRANSLUCENT); |
| // draw to compatible Image |
| draw(bi, gold); |
| // draw to volatile image |
| int attempt = 0; |
| BufferedImage snapshot; |
| while (true) { |
| if (++attempt > 10) { |
| throw new RuntimeException("Too many attempts: " + attempt); |
| } |
| vi.validate(gc); |
| if (vi.validate(gc) != VolatileImage.IMAGE_OK) { |
| continue; |
| } |
| draw(bi, vi); |
| snapshot = vi.getSnapshot(); |
| if (vi.contentsLost()) { |
| continue; |
| } |
| break; |
| } |
| // validate images |
| for (int x = 0; x < gold.getWidth(); ++x) { |
| for (int y = 0; y < gold.getHeight(); ++y) { |
| if (gold.getRGB(x, y) != snapshot.getRGB(x, y)) { |
| ImageIO.write(gold, "png", new File("gold.png")); |
| ImageIO.write(snapshot, "png", new File("bi.png")); |
| throw new RuntimeException("Test failed."); |
| } |
| } |
| } |
| } |
| |
| private static void draw(final BufferedImage from,final Image to) { |
| final Graphics2D g2d = (Graphics2D) to.getGraphics(); |
| g2d.setComposite(AlphaComposite.Src); |
| g2d.setColor(Color.ORANGE); |
| g2d.fillRect(0, 0, to.getWidth(null), to.getHeight(null)); |
| g2d.rotate(Math.toRadians(45)); |
| g2d.clip(new Rectangle(41, 42, 43, 44)); |
| g2d.drawImage(from, 50, 50, Color.blue, null); |
| g2d.dispose(); |
| } |
| |
| private static BufferedImage makeUnmanagedBI() { |
| final BufferedImage bi = new BufferedImage(500, 200, TYPE_INT_ARGB); |
| final DataBuffer db = bi.getRaster().getDataBuffer(); |
| if (db instanceof DataBufferInt) { |
| ((DataBufferInt) db).getData(); |
| } else if (db instanceof DataBufferShort) { |
| ((DataBufferShort) db).getData(); |
| } else if (db instanceof DataBufferByte) { |
| ((DataBufferByte) db).getData(); |
| } else { |
| try { |
| bi.setAccelerationPriority(0.0f); |
| } catch (final Throwable ignored) { |
| } |
| } |
| return bi; |
| } |
| |
| private static void fill(final Image image) { |
| final Graphics2D graphics = (Graphics2D) image.getGraphics(); |
| graphics.setComposite(AlphaComposite.Src); |
| for (int i = 0; i < image.getHeight(null); ++i) { |
| graphics.setColor(new Color(i, 0, 0)); |
| graphics.fillRect(0, i, image.getWidth(null), 1); |
| } |
| graphics.dispose(); |
| } |
| } |