--- /dev/null 2014-05-12 21:07:26.000000000 +0400 +++ new/test/java/awt/image/DrawImage/IncorrectAlphaSurface2SW.java 2014-05-12 21:07:25.880308000 +0400 @@ -0,0 +1,161 @@ +/* + * 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.image.BufferedImage; +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_4BYTE_ABGR; +import static java.awt.image.BufferedImage.TYPE_4BYTE_ABGR_PRE; +import static java.awt.image.BufferedImage.TYPE_INT_ARGB; +import static java.awt.image.BufferedImage.TYPE_INT_ARGB_PRE; + +/** + * @test + * @bug 8017626 + * @summary Tests drawing transparent volatile image to transparent BI. + * Results of the blit compatibleImage to transparent BI used for + * comparison. + * @author Sergey Bylokhov + */ +public final class IncorrectAlphaSurface2SW { + + private static final int[] SCALES = {1, 2, 4, 8}; + private static final int[] SIZES = {1, 2, 3, 127, 128, 254, 255, 256}; + private static final int[] dstTypes = {TYPE_INT_ARGB, TYPE_INT_ARGB_PRE, + TYPE_4BYTE_ABGR, TYPE_4BYTE_ABGR_PRE}; + private static final int[] srcTypes = {TRANSLUCENT}; + + + public static void main(final String[] args) throws IOException { + GraphicsEnvironment ge = GraphicsEnvironment + .getLocalGraphicsEnvironment(); + GraphicsConfiguration gc = ge.getDefaultScreenDevice() + .getDefaultConfiguration(); + BufferedImage destVI; + BufferedImage destBI; + BufferedImage sourceBI; + VolatileImage sourceVI; + + for (final int s : SIZES) { + for (final int srcType : srcTypes) { + for (final int dstType : dstTypes) { + for (final int scale : SCALES) { + int sw = s * scale; + destVI = new BufferedImage(sw, sw, dstType); + destBI = new BufferedImage(sw, sw, dstType); + sourceBI = gc.createCompatibleImage(sw, sw, srcType); + sourceVI = gc.createCompatibleVolatileImage(s, s, srcType); + + // draw to dest BI using compatible image + fill(sourceBI, s); + Graphics2D big = destBI.createGraphics(); + big.setComposite(AlphaComposite.Src); + big.drawImage(sourceBI, 0, 0, sw, sw, null); + big.dispose(); + + // draw to dest BI using compatible image + fill(sourceVI, s); + drawVItoBI(gc, destVI, sourceVI); + + validate(destVI, destBI); + sourceVI.flush(); + } + } + } + } + System.out.println("Test PASSED"); + } + + private static void drawVItoBI(GraphicsConfiguration gc, + BufferedImage bi, VolatileImage vi) { + while (true) { + vi.validate(gc); + fill(vi, vi.getHeight()); + if (vi.validate(gc) != VolatileImage.IMAGE_OK) { + try { + Thread.sleep(100); + } catch (final InterruptedException ignored) { + } + continue; + } + + Graphics2D big = bi.createGraphics(); + big.setComposite(AlphaComposite.Src); + big.drawImage(vi, 0, 0, bi.getWidth(), bi.getHeight(), null); + big.dispose(); + + if (vi.contentsLost()) { + try { + Thread.sleep(100); + } catch (final InterruptedException ignored) { + } + continue; + } + break; + } + } + + private static void validate(BufferedImage bi, BufferedImage gold) + throws IOException { + for (int x = 0; x < bi.getWidth(); ++x) { + for (int y = 0; y < bi.getHeight(); ++y) { + if (gold.getRGB(x, y) != bi.getRGB(x, y)) { + System.err.println("Expected color = " + gold.getRGB(x, y)); + System.err.println("Actual color = " + bi.getRGB(x, y)); + ImageIO.write(gold, "png", new File("gold.png")); + ImageIO.write(bi, "png", new File("bi.png")); + throw new RuntimeException("Test failed."); + } + } + } + } + + /** + * Fills the whole image using different alpha for each row. + * + * @param image to fill + */ + private static void fill(final Image image, final int size) { + Graphics2D graphics = (Graphics2D) image.getGraphics(); + graphics.setComposite(AlphaComposite.Src); + graphics.setColor(Color.GREEN); + graphics.fillRect(0, 0, image.getWidth(null), image.getHeight(null)); + int row = image.getHeight(null) / size; + for (int i = 0; i < size; ++i) { + graphics.setColor(new Color(23, 127, 189, i)); + graphics.fillRect(0, i * row, image.getWidth(null), row); + } + graphics.dispose(); + } +}