| /* |
| * Copyright (c) 2007, 2013, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 6276653 6287936 |
| * |
| * @summary Test verifes that Image I/O gif writer correctly handles |
| * image what supports tranclucent transparency type but contains |
| * picture with opaque or bitmask transparecy (i.e. each image pixel |
| * is ether opaque or fully transparent). |
| * |
| * @run main GifTransparencyTest |
| */ |
| |
| |
| import java.awt.BorderLayout; |
| import java.awt.Color; |
| import java.awt.Dimension; |
| import java.awt.Graphics; |
| import java.awt.Graphics2D; |
| import java.awt.geom.Area; |
| import java.awt.geom.RoundRectangle2D; |
| import java.awt.image.BufferedImage; |
| import java.io.File; |
| import java.io.IOException; |
| import javax.imageio.ImageIO; |
| import javax.imageio.ImageWriter; |
| import javax.imageio.spi.ImageWriterSpi; |
| import javax.swing.JComponent; |
| import javax.swing.JFrame; |
| import javax.swing.JPanel; |
| |
| |
| public class GifTransparencyTest { |
| |
| BufferedImage src; |
| BufferedImage dst; |
| |
| public GifTransparencyTest() { |
| src = createTestImage(); |
| } |
| |
| public void doTest() { |
| File pwd = new File("."); |
| try { |
| File f = File.createTempFile("transparency_test_", ".gif", pwd); |
| System.out.println("file: " + f.getCanonicalPath()); |
| |
| ImageWriter w = ImageIO.getImageWritersByFormatName("GIF").next(); |
| |
| ImageWriterSpi spi = w.getOriginatingProvider(); |
| |
| boolean succeed_write = ImageIO.write(src, "gif", f); |
| |
| if (!succeed_write) { |
| throw new RuntimeException("Test failed: failed to write src."); |
| } |
| |
| dst = ImageIO.read(f); |
| |
| checkResult(src, dst); |
| |
| } catch (IOException e) { |
| throw new RuntimeException("Test failed.", e); |
| } |
| } |
| |
| /* |
| * Failure criteria: |
| * - src and dst have different dimension |
| * - any transparent pixel was lost |
| */ |
| protected void checkResult(BufferedImage src, BufferedImage dst) { |
| int w = src.getWidth(); |
| int h = src.getHeight(); |
| |
| |
| if (dst.getWidth() != w || dst.getHeight() != h) { |
| throw new RuntimeException("Test failed: wrong result dimension"); |
| } |
| |
| BufferedImage bg = new BufferedImage(2 * w, h, BufferedImage.TYPE_INT_RGB); |
| Graphics g = bg.createGraphics(); |
| g.setColor(Color.white); |
| g.fillRect(0, 0, 2 * w, h); |
| |
| g.drawImage(src, 0, 0, null); |
| g.drawImage(dst, w, 0, null); |
| |
| g.dispose(); |
| |
| for (int y = 0; y < h; y++) { |
| for (int x = 0; x < w; x++) { |
| int src_rgb = bg.getRGB(x, y); |
| int dst_rgb = bg.getRGB(x + w, y); |
| |
| if (dst_rgb != src_rgb) { |
| throw new RuntimeException("Test failed: wrong color " + |
| Integer.toHexString(dst_rgb) + " at " + x + ", " + |
| y + " (instead of " + Integer.toHexString(src_rgb) + |
| ")"); |
| } |
| } |
| } |
| System.out.println("Test passed."); |
| } |
| |
| public void show() { |
| JPanel p = new JPanel(new BorderLayout()) { |
| public void paintComponent(Graphics g) { |
| g.setColor(Color.blue); |
| g.fillRect(0, 0, getWidth(), getHeight()); |
| } |
| }; |
| p.add(new ImageComponent(src), BorderLayout.WEST); |
| if (dst != null) { |
| p.add(new ImageComponent(dst), BorderLayout.EAST); |
| } |
| |
| JFrame f = new JFrame("Transparency"); |
| f.add(p); |
| |
| f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); |
| f.pack(); |
| f.setVisible(true); |
| } |
| |
| public static class ImageComponent extends JComponent { |
| BufferedImage img; |
| |
| public ImageComponent(BufferedImage img) { |
| this.img = img; |
| } |
| |
| public Dimension getPreferredSize() { |
| return new Dimension(img.getWidth() + 2, img.getHeight() + 2); |
| } |
| |
| public void paintComponent(Graphics g) { |
| g.drawImage(img, 1, 1, this); |
| } |
| } |
| |
| protected BufferedImage createTestImage() { |
| BufferedImage img = new BufferedImage(200, 200, |
| BufferedImage.TYPE_INT_ARGB); |
| Graphics g = img.createGraphics(); |
| |
| g.setColor(Color.red); |
| g.fillRect(50, 50, 100, 100); |
| g.dispose(); |
| |
| return img; |
| } |
| |
| public static class Empty extends GifTransparencyTest { |
| protected BufferedImage createTestImage() { |
| return new BufferedImage(200, 200, BufferedImage.TYPE_INT_ARGB); |
| } |
| } |
| |
| public static class Opaque extends GifTransparencyTest { |
| protected BufferedImage createTestImage() { |
| BufferedImage img = new BufferedImage(200, 200, |
| BufferedImage.TYPE_INT_ARGB); |
| Graphics g = img.createGraphics(); |
| g.setColor(Color.cyan); |
| g.fillRect(0, 0, 200, 200); |
| |
| g.setColor(Color.red); |
| g.fillRect(50, 50, 100, 100); |
| g.dispose(); |
| |
| return img; |
| } |
| } |
| |
| public static void main(String[] args) { |
| System.out.println("Test bitmask..."); |
| new GifTransparencyTest().doTest(); |
| |
| System.out.println("Test opaque..."); |
| new GifTransparencyTest.Opaque().doTest(); |
| |
| System.out.println("Test empty..."); |
| new GifTransparencyTest.Empty().doTest(); |
| } |
| } |