/*
* Copyright (c) 2007, 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.
*
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*/
/**
* @test
* @bug 6603887
* @summary Verifies that drawImage with bg color works correctly for ICM image
* @run main/othervm DrawImageBgTest
* @run main/othervm -Dsun.java2d.pmoffscreen=true DrawImageBgTest
*/
import java.awt.Color;
import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsEnvironment;
import java.awt.image.BufferedImage;
import java.awt.image.IndexColorModel;
import java.awt.image.VolatileImage;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class DrawImageBgTest {
public static void main(String[] args) {
GraphicsConfiguration gc =
GraphicsEnvironment.getLocalGraphicsEnvironment().
getDefaultScreenDevice().getDefaultConfiguration();
if (gc.getColorModel().getPixelSize() <= 8) {
System.out.println("8-bit color model, test considered passed");
return;
}
/*
* Set up images:
* 1.) VolatileImge for rendering to,
* 2.) BufferedImage for reading back the contents of the VI
* 3.) The image triggering the problem
*/
VolatileImage vImg = null;
BufferedImage readBackBImg;
// create a BITMASK ICM such that the transparent color is
// tr. black (and it's the first in the color map so a buffered image
// created with this ICM is transparent
byte r[] = { 0x00, (byte)0xff};
byte g[] = { 0x00, (byte)0xff};
byte b[] = { 0x00, (byte)0xff};
IndexColorModel icm = new IndexColorModel(8, 2, r, g, b, 0);
WritableRaster wr = icm.createCompatibleWritableRaster(25, 25);
BufferedImage tImg = new BufferedImage(icm, wr, false, null);
do {
if (vImg == null ||
vImg.validate(gc) == VolatileImage.IMAGE_INCOMPATIBLE)
{
vImg = gc.createCompatibleVolatileImage(tImg.getWidth(),
tImg.getHeight());
}
Graphics viG = vImg.getGraphics();
viG.setColor(Color.red);
viG.fillRect(0, 0, vImg.getWidth(), vImg.getHeight());
viG.drawImage(tImg, 0, 0, Color.green, null);
viG.fillRect(0, 0, vImg.getWidth(), vImg.getHeight());
viG.drawImage(tImg, 0, 0, Color.white, null);
readBackBImg = vImg.getSnapshot();
} while (vImg.contentsLost());
for (int x = 0; x < readBackBImg.getWidth(); x++) {
for (int y = 0; y < readBackBImg.getHeight(); y++) {
int currPixel = readBackBImg.getRGB(x, y);
if (currPixel != Color.white.getRGB()) {
String fileName = "DrawImageBgTest.png";
try {
ImageIO.write(readBackBImg, "png", new File(fileName));
System.err.println("Dumped image to " + fileName);
} catch (IOException ex) {}
throw new
RuntimeException("Test Failed: found wrong color: 0x"+
Integer.toHexString(currPixel));
}
}
}
System.out.println("Test Passed.");
}
}