/*
* 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
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*/
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(0 f, Short .MAX_VALUE, 0 f, Short .MAX_VALUE +31 ,
new float []{0 f, 1 f}, 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) & 0 x00FF0000) >> 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();
}
});
}
}
Messung V0.5 in Prozent C=97 H=87 G=91
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-10)
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