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/*
* Copyright (c) 2014, 2016, 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.
*/
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsEnvironment;
import java.awt.image.BufferedImage;
import java.awt.image.VolatileImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
/**
* @test
* @key headful
* @bug 8041129
* @summary Destination offset should be correct in case of Surface->SW blit.
* Destination outside of the drawing area should be untouched.
* @author Sergey Bylokhov
*/
public final class IncorrectDestinationOffset {
private static final int SIZE = 128;
private static final double[] SCALES = {0.25, 0.5, 1, 1.5, 2.0, 4};
public static void main(final String[] args) throws IOException {
GraphicsEnvironment ge = GraphicsEnvironment
.getLocalGraphicsEnvironment();
GraphicsConfiguration gc = ge.getDefaultScreenDevice()
.getDefaultConfiguration();
VolatileImage vi = gc.createCompatibleVolatileImage(SIZE, SIZE);
BufferedImage bi = new BufferedImage(SIZE, SIZE,
BufferedImage.TYPE_INT_ARGB);
for (double scale : SCALES) {
while (true) {
// initialize Volatile Image
vi.validate(gc);
Graphics2D g2d = vi.createGraphics();
g2d.setColor(Color.green);
g2d.fillRect(0, 0, SIZE, SIZE);
g2d.dispose();
if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
try {
Thread.sleep(100);
} catch (InterruptedException ignored) {
}
continue;
}
// Draw the VolatileImage to BI with scale and offsets
Graphics2D g = bi.createGraphics();
g.setComposite(AlphaComposite.Src);
g.setColor(Color.RED);
g.fillRect(0, 0, SIZE / 2, SIZE / 2);
g.setColor(Color.BLUE);
g.fillRect(SIZE / 2, 0, SIZE / 2, SIZE / 2);
g.setColor(Color.ORANGE);
g.fillRect(0, SIZE / 2, SIZE / 2, SIZE / 2);
g.setColor(Color.MAGENTA);
g.fillRect(SIZE / 2, SIZE / 2, SIZE / 2, SIZE / 2);
int point2draw = (int) (100 * scale);
int size2draw = (int) (SIZE * scale);
g.drawImage(vi, point2draw, point2draw, size2draw, size2draw,
null);
g.dispose();
if (vi.contentsLost()) {
try {
Thread.sleep(100);
} catch (InterruptedException ignored) {
}
continue;
}
validate(bi, point2draw, size2draw);
break;
}
}
}
private static void validate(BufferedImage bi, int point2draw,
int size2draw)
throws IOException {
for (int x = 0; x < SIZE; ++x) {
for (int y = 0; y < SIZE; ++y) {
if (isInsideGreenArea(point2draw, size2draw, x, y)) {
if (bi.getRGB(x, y) != Color.green.getRGB()) {
ImageIO.write(bi, "png", new File("image.png"));
throw new RuntimeException("Test failed.");
}
} else {
if (isRedArea(x, y)) {
if (bi.getRGB(x, y) != Color.red.getRGB()) {
ImageIO.write(bi, "png", new File("image.png"));
throw new RuntimeException("Test failed.");
}
}
if (isBlueArea(x, y)) {
if (bi.getRGB(x, y) != Color.blue.getRGB()) {
ImageIO.write(bi, "png", new File("image.png"));
throw new RuntimeException("Test failed.");
}
}
if (isOrangeArea(x, y)) {
if (bi.getRGB(x, y) != Color.orange.getRGB()) {
ImageIO.write(bi, "png", new File("image.png"));
throw new RuntimeException("Test failed.");
}
}
if (isMagentaArea(x, y)) {
if (bi.getRGB(x, y) != Color.magenta.getRGB()) {
ImageIO.write(bi, "png", new File("image.png"));
throw new RuntimeException("Test failed.");
}
}
}
}
}
}
private static boolean isRedArea(int x, int y) {
return x < SIZE / 2 && y < SIZE / 2;
}
private static boolean isBlueArea(int x, int y) {
return x >= SIZE / 2 && y < SIZE / 2;
}
private static boolean isOrangeArea(int x, int y) {
return x < SIZE / 2 && y >= SIZE / 2;
}
private static boolean isMagentaArea(int x, int y) {
return x >= SIZE / 2 && y >= SIZE / 2;
}
private static boolean isInsideGreenArea(int point2draw, int size2draw,
int x, int y) {
return x >= point2draw && x < point2draw + size2draw && y >=
point2draw && y < point2draw + size2draw;
}
}
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