--- /dev/null 2014-11-14 15:28:25.000000000 +0300 +++ new/test/java/awt/image/DrawImage/IncorrectUnmanagedImageRotatedClip.java 2014-11-14 15:28:25.000000000 +0300 @@ -0,0 +1,138 @@ +/* + * 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(); + } +}