135 lines
4.1 KiB
Java
135 lines
4.1 KiB
Java
/*
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* Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4339415
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* @summary Tests that GIF writer plugin is able to write non-index images
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*/
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.Transparency;
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import java.awt.color.ColorSpace;
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import java.awt.image.BufferedImage;
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import java.awt.image.ComponentColorModel;
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import java.awt.image.DataBuffer;
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import java.awt.image.WritableRaster;
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import java.io.File;
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import java.util.Random;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriter;
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public class IndexingTest {
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protected static final String fname = "itest.gif";
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int w;
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int h;
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Random rnd;
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public IndexingTest() {
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w = h = 200;
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rnd = new Random();
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}
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public void doTest() {
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ComponentColorModel ccm = createBitmaskColorModel();
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BufferedImage img = createComponentImage(w, h, ccm);
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try {
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ImageWriter w = ImageIO.getImageWritersByFormatName("GIF").next();
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w.setOutput(ImageIO.createImageOutputStream(new File(fname)));
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w.write(img);
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} catch (Exception e) {
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throw new RuntimeException("Test failed.", e);
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}
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BufferedImage dst = null;
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try {
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dst = ImageIO.read(new File(fname));
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} catch (Exception e) {
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throw new RuntimeException("Test failed.", e);
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}
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compareImages(img, dst);
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System.out.println("Test passed.");
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}
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protected static ComponentColorModel createBitmaskColorModel() {
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ComponentColorModel cm =
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new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB),
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true, false, Transparency.BITMASK,
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DataBuffer.TYPE_BYTE);
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return cm;
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}
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protected static BufferedImage createComponentImage(int w, int h,
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ComponentColorModel cm)
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{
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WritableRaster wr = cm.createCompatibleWritableRaster(w, h);
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BufferedImage img = new BufferedImage(cm, wr, false, null);
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Graphics2D g = img.createGraphics();
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int width = w / 8;
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Color[] colors = new Color[8];
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colors[0] = Color.red;
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colors[1] = Color.green;
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colors[2] = Color.blue;
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colors[3] = Color.white;
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colors[4] = Color.black;
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colors[5] = new Color(0x80, 0x80, 0x80, 0x00);
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colors[6] = Color.yellow;
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colors[7] = Color.cyan;
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for (int i = 0; i < 8; i++) {
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g.setColor(colors[i]);
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g.fillRect(i * width, 0, width, h);
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}
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return img;
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}
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protected void compareImages(BufferedImage src, BufferedImage dst) {
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int n = 10;
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while (n-- > 0) {
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int x = rnd.nextInt(w);
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int y = rnd.nextInt(h);
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int pSrc = src.getRGB(x, y);
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int pDst = src.getRGB(x, y);
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if (pSrc != pDst) {
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throw new RuntimeException("Images are different");
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}
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}
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}
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public static void main(String[] args) {
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IndexingTest t = new IndexingTest();
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t.doTest();
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}
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}
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