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/*
* Copyright (c) 2005, 2017, 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 4339415
* @summary Tests that GIF writer plugin is able to write non-index images
*/
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Transparency;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ComponentColorModel;
import java.awt.image.DataBuffer;
import java.awt.image.WritableRaster;
import java.io.File;
import java.util.Random;
import javax.imageio.ImageIO;
import javax.imageio.ImageWriter;
public class IndexingTest {
protected static final String fname = "itest.gif";
int w;
int h;
Random rnd;
public IndexingTest() {
w = h = 200;
rnd = new Random();
}
public void doTest() {
ComponentColorModel ccm = createBitmaskColorModel();
BufferedImage img = createComponentImage(w, h, ccm);
try {
ImageWriter w = ImageIO.getImageWritersByFormatName("GIF").next();
w.setOutput(ImageIO.createImageOutputStream(new File(fname)));
w.write(img);
} catch (Exception e) {
throw new RuntimeException("Test failed.", e);
}
BufferedImage dst = null;
try {
dst = ImageIO.read(new File(fname));
} catch (Exception e) {
throw new RuntimeException("Test failed.", e);
}
compareImages(img, dst);
System.out.println("Test passed.");
}
protected static ComponentColorModel createBitmaskColorModel() {
ComponentColorModel cm =
new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB),
true, false, Transparency.BITMASK,
DataBuffer.TYPE_BYTE);
return cm;
}
protected static BufferedImage createComponentImage(int w, int h,
ComponentColorModel cm)
{
WritableRaster wr = cm.createCompatibleWritableRaster(w, h);
BufferedImage img = new BufferedImage(cm, wr, false, null);
Graphics2D g = img.createGraphics();
int width = w / 8;
Color[] colors = new Color[8];
colors[0] = Color.red;
colors[1] = Color.green;
colors[2] = Color.blue;
colors[3] = Color.white;
colors[4] = Color.black;
colors[5] = new Color(0x80, 0x80, 0x80, 0x00);
colors[6] = Color.yellow;
colors[7] = Color.cyan;
for (int i = 0; i < 8; i++) {
g.setColor(colors[i]);
g.fillRect(i * width, 0, width, h);
}
return img;
}
protected void compareImages(BufferedImage src, BufferedImage dst) {
int n = 10;
while (n-- > 0) {
int x = rnd.nextInt(w);
int y = rnd.nextInt(h);
int pSrc = src.getRGB(x, y);
int pDst = src.getRGB(x, y);
if (pSrc != pDst) {
throw new RuntimeException("Images are different");
}
}
}
public static void main(String[] args) {
IndexingTest t = new IndexingTest();
t.doTest();
}
}
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