146 lines
5.1 KiB
Java
146 lines
5.1 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 images with BITMASK
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* transparency
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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.image.BufferedImage;
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import java.awt.image.IndexColorModel;
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import java.awt.image.WritableRaster;
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import java.io.File;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriter;
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public class TransparencyTest {
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protected static final String fname = "ttest.gif";
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protected BufferedImage src;
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protected BufferedImage dst;
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public static void main(String[] args) {
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System.out.println("Test indexed image...");
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IndexColorModel icm = createIndexedBitmaskColorModel();
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BufferedImage img = createIndexedImage(200, 200, icm);
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TransparencyTest t = new TransparencyTest(img);
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try {
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t.doTest();
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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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System.out.println("Test passed.");
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}
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protected TransparencyTest(BufferedImage src) {
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this.src = src;
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}
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protected void doTest() throws IOException {
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int w = src.getWidth();
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int h = src.getHeight();
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System.out.println("Write image...");
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try {
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ImageWriter writer =
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ImageIO.getImageWritersByFormatName("GIF").next();
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writer.setOutput(ImageIO.createImageOutputStream(new File(fname)));
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writer.write(src);
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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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System.out.println("Read image....");
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dst = ImageIO.read(new File(fname));
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BufferedImage tmp = new BufferedImage(w, 2 * h,
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BufferedImage.TYPE_INT_ARGB);
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Graphics2D g = tmp.createGraphics();
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g.setColor(Color.pink);
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g.fillRect(0, 0, tmp.getWidth(), tmp.getHeight());
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g.drawImage(src, 0, 0, null);
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g.drawImage(dst, 0, h, null);
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int width = w / 8;
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int x = 5 * width + width / 2;
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for (int y = 0; y < h; y++) {
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int argb = tmp.getRGB(x, y);
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if (Color.pink.getRGB() != argb) {
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throw new RuntimeException("Bad color at " + x + "," + y +
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" - " + Integer.toHexString(argb));
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}
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}
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}
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protected static BufferedImage createIndexedImage(int w, int h,
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IndexColorModel icm)
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{
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BufferedImage img = new BufferedImage(w, h,
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BufferedImage.TYPE_BYTE_INDEXED,
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icm);
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int mapSize = icm.getMapSize();
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int width = w / mapSize;
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WritableRaster wr = img.getRaster();
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for (int i = 0; i < mapSize; i++) {
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for (int y = 0; y < h; y++) {
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for (int x = 0; x < width; x++) {
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wr.setSample(i * width + x, y, 0, i);
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}
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}
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}
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return img;
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}
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protected static IndexColorModel createIndexedBitmaskColorModel() {
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int paletteSize = 8;
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byte[] red = new byte[paletteSize];
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byte[] green = new byte[paletteSize];
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byte[] blue = new byte[paletteSize];
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red[0] = (byte)0xff; green[0] = (byte)0x00; blue[0] = (byte)0x00;
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red[1] = (byte)0x00; green[1] = (byte)0xff; blue[1] = (byte)0x00;
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red[2] = (byte)0x00; green[2] = (byte)0x00; blue[2] = (byte)0xff;
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red[3] = (byte)0xff; green[3] = (byte)0xff; blue[3] = (byte)0xff;
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red[4] = (byte)0x00; green[4] = (byte)0x00; blue[4] = (byte)0x00;
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red[5] = (byte)0x80; green[5] = (byte)0x80; blue[5] = (byte)0x80;
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red[6] = (byte)0xff; green[6] = (byte)0xff; blue[6] = (byte)0x00;
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red[7] = (byte)0x00; green[7] = (byte)0xff; blue[7] = (byte)0xff;
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int numBits = 3;
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IndexColorModel icm = new IndexColorModel(numBits, paletteSize,
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red, green, blue, 5);
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return icm;
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}
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}
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