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/*
* Copyright (c) 2014, 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.
*/
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
/**
* @test
* @key headful
* @bug 8162591
* @summary tests gradients with start/endpoints exceeding Short.MAX coordinates
* @author ceisserer
*/
public class HugeGradientTest extends Frame {
public static volatile boolean success = false;
public HugeGradientTest() {
Image dstImg = getGraphicsConfiguration()
.createCompatibleVolatileImage(30, 30);
Graphics2D g = (Graphics2D) dstImg.getGraphics();
g.setPaint(new LinearGradientPaint(0f, Short.MAX_VALUE, 0f, Short.MAX_VALUE +31,
new float[]{0f, 1f}, new Color[]{Color.BLACK, Color.RED}));
g.translate(0, -Short.MAX_VALUE);
g.fillRect (0, 0, Short.MAX_VALUE*2 , Short.MAX_VALUE*2);
BufferedImage readBackImg = new BufferedImage(dstImg.getWidth(null),
dstImg.getHeight(null), BufferedImage.TYPE_INT_RGB);
readBackImg.getGraphics().drawImage(dstImg, 0, 0, null);
for (int x = 0; x < readBackImg.getWidth(); x++) {
for (int y = 0; y < readBackImg.getHeight(); y++) {
int redVal = (readBackImg.getRGB(x, y) & 0x00FF0000) >> 16;
if (redVal > 127) {
return;
}
}
}
throw new RuntimeException("Test Failed");
}
public static void main(String[] args) throws Exception {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new HugeGradientTest();
}
});
}
}
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