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/*
* Copyright 2007-2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/*
* @test
* @bug 5009033 6603000 6666362
* @summary Verifies that images transformed with bilinear filtering do not
* leave artifacts at the edges.
* @run main/othervm DrawImageBilinear
* @run main/othervm -Dsun.java2d.opengl=True DrawImageBilinear
* @author campbelc
*/
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.awt.image.IndexColorModel;
import java.awt.image.VolatileImage;
public class DrawImageBilinear extends Canvas {
private static final int SIZE = 5;
private static boolean done;
private BufferedImage bimg1, bimg2;
private VolatileImage vimg;
private static volatile BufferedImage capture;
private static void doCapture(Component test) {
// Grab the screen region
try {
Robot robot = new Robot();
Point pt1 = test.getLocationOnScreen();
Rectangle rect =
new Rectangle(pt1.x, pt1.y, test.getWidth(), test.getHeight());
capture = robot.createScreenCapture(rect);
} catch (Exception e) {
e.printStackTrace();
}
}
private void renderPattern(Graphics g) {
g.setColor(Color.red);
g.fillRect(0, 0, SIZE, SIZE);
//g.setColor(Color.green);
//g.drawRect(0, 0, SIZE-1, SIZE-1);
g.dispose();
}
public void paint(Graphics g) {
Graphics2D g2d = (Graphics2D)g;
if (bimg1 == null) {
bimg1 = (BufferedImage)createImage(SIZE, SIZE);
bimg1.setAccelerationPriority(0.0f);
renderPattern(bimg1.createGraphics());
bimg2 = (BufferedImage)createImage(SIZE, SIZE);
renderPattern(bimg2.createGraphics());
vimg = createVolatileImage(SIZE, SIZE);
vimg.validate(getGraphicsConfiguration());
renderPattern(vimg.createGraphics());
}
do {
g2d.setColor(Color.white);
g2d.fillRect(0, 0, getWidth(), getHeight());
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
// first time will be a sw->surface blit
g2d.drawImage(bimg1, 10, 10, 40, 40, null);
// second time will be a texture->surface blit
g2d.drawImage(bimg2, 80, 10, 40, 40, null);
g2d.drawImage(bimg2, 80, 10, 40, 40, null);
// third time will be a pbuffer->surface blit
if (vimg.validate(getGraphicsConfiguration()) != VolatileImage.IMAGE_OK) {
renderPattern(vimg.createGraphics());
}
g2d.drawImage(vimg, 150, 10, 40, 40, null);
Toolkit.getDefaultToolkit().sync();
} while (vimg.contentsLost());
synchronized (this) {
if (!done) {
doCapture(this);
done = true;
}
notifyAll();
}
}
public Dimension getPreferredSize() {
return new Dimension(200, 100);
}
private static void testRegion(BufferedImage bi,
Rectangle affectedRegion)
{
int x1 = affectedRegion.x;
int y1 = affectedRegion.y;
int x2 = x1 + affectedRegion.width;
int y2 = y1 + affectedRegion.height;
for (int y = y1; y < y2; y++) {
for (int x = x1; x < x2; x++) {
int actual = bi.getRGB(x, y);
if ((actual != 0xfffe0000) && (actual != 0xffff0000)) {
throw new RuntimeException("Test failed at x="+x+" y="+y+
" (expected=0xffff0000"+
" actual=0x"+
Integer.toHexString(actual) +
")");
}
}
}
}
public static void main(String[] args) {
boolean show = false;
for (String arg : args) {
if ("-show".equals(arg)) {
show = true;
}
}
DrawImageBilinear test = new DrawImageBilinear();
Frame frame = new Frame();
frame.add(test);
frame.pack();
frame.setVisible(true);
// Wait until the component's been painted
synchronized (test) {
while (!done) {
try {
test.wait();
} catch (InterruptedException e) {
throw new RuntimeException("Failed: Interrupted");
}
}
}
GraphicsConfiguration gc = frame.getGraphicsConfiguration();
if (gc.getColorModel() instanceof IndexColorModel) {
System.out.println("IndexColorModel detected: " +
"test considered PASSED");
frame.dispose();
return;
}
if (!show) {
frame.dispose();
}
if (capture == null) {
throw new RuntimeException("Failed: capture is null");
}
// Test background color
int pixel = capture.getRGB(5, 5);
if (pixel != 0xffffffff) {
throw new RuntimeException("Failed: Incorrect color for " +
"background");
}
// Test pixels
testRegion(capture, new Rectangle(10, 10, 40, 40));
testRegion(capture, new Rectangle(80, 10, 40, 40));
testRegion(capture, new Rectangle(150, 10, 40, 40));
}
}
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