| /* |
| * Copyright (c) 2014, 2016, 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 8041465 |
| * @summary Test verifies that standard ImageIO plugins handle |
| * multiple reads correctly. |
| * |
| * @run main MultiReadTest |
| */ |
| |
| import java.awt.Color; |
| import java.awt.Graphics2D; |
| import java.awt.Rectangle; |
| import java.awt.image.BufferedImage; |
| import java.io.File; |
| import java.io.IOException; |
| import javax.imageio.ImageIO; |
| import javax.imageio.ImageReadParam; |
| import javax.imageio.ImageReader; |
| import javax.imageio.stream.ImageInputStream; |
| |
| public class MultiReadTest { |
| |
| private static final File pwd = new File("."); |
| |
| private static final Color srcColor = Color.red; |
| private static final int width = 200; |
| private static final int height = 200; |
| |
| private static final int max = 5; |
| |
| public static void main(String[] args) throws IOException { |
| final String[] formats = { "bmp", "png", "gif", "jpg", "tif" }; |
| |
| for (String f : formats) { |
| test(f); |
| } |
| } |
| |
| private static void test(String format) throws IOException { |
| System.out.println("Format: " + format); |
| |
| BufferedImage src = createSrc(); |
| |
| ImageInputStream iis = prepareInput(src, format); |
| |
| ImageReader reader = ImageIO.getImageReaders(iis).next(); |
| |
| reader.setInput(iis); |
| |
| ImageReadParam p = reader.getDefaultReadParam(); |
| int cnt = 0; |
| do { |
| System.out.println("cnt: " + cnt); |
| p.setSourceRegion(new Rectangle(width / 4, height / 4, |
| width / 2, height / 2)); |
| |
| BufferedImage dst = reader.read(0, p); |
| |
| final Color c = new Color(dst.getRGB(10, 10), true); |
| |
| if (!sameColor(c, srcColor)) { |
| throw new RuntimeException( |
| String.format("Test failed: read color 0x%X\n", |
| c.getRGB())); |
| } |
| } while (++cnt < max); |
| } |
| |
| private static boolean sameColor(Color c1, Color c2) { |
| final float delta = 0.1f; |
| |
| float[] rgb1 = new float[4]; |
| float[] rgb2 = new float[4]; |
| |
| rgb1 = c1.getRGBComponents(rgb1); |
| rgb2 = c2.getRGBComponents(rgb2); |
| |
| for (int i = 0; i < rgb1.length; i++) { |
| if (Math.abs(rgb1[i] - rgb2[i]) > delta) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| private static BufferedImage createSrc() { |
| BufferedImage img = new BufferedImage(width, height, |
| BufferedImage.TYPE_INT_RGB); |
| |
| Graphics2D g = img.createGraphics(); |
| g.setColor(srcColor); |
| g.fillRect(0, 0, width, height); |
| g.dispose(); |
| |
| return img; |
| } |
| |
| private static ImageInputStream prepareInput(BufferedImage src, String format) throws IOException { |
| File f = File.createTempFile("src_", "." + format, pwd); |
| |
| if (ImageIO.write(src, format, f)) { |
| return ImageIO.createImageInputStream(f); |
| } |
| return null; |
| } |
| } |