74 lines
2.8 KiB
Java
74 lines
2.8 KiB
Java
/*
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* Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.*;
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import java.awt.image.*;
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import javax.swing.*;
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/**
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* @test
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* @key headful
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* @bug 8162591
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* @summary tests gradients with start/endpoints exceeding Short.MAX coordinates
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* @author ceisserer
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*/
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public class HugeGradientTest extends Frame {
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public static volatile boolean success = false;
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public HugeGradientTest() {
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Image dstImg = getGraphicsConfiguration()
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.createCompatibleVolatileImage(30, 30);
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Graphics2D g = (Graphics2D) dstImg.getGraphics();
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g.setPaint(new LinearGradientPaint(0f, Short.MAX_VALUE, 0f, Short.MAX_VALUE +31,
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new float[]{0f, 1f}, new Color[]{Color.BLACK, Color.RED}));
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g.translate(0, -Short.MAX_VALUE);
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g.fillRect (0, 0, Short.MAX_VALUE*2 , Short.MAX_VALUE*2);
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BufferedImage readBackImg = new BufferedImage(dstImg.getWidth(null),
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dstImg.getHeight(null), BufferedImage.TYPE_INT_RGB);
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readBackImg.getGraphics().drawImage(dstImg, 0, 0, null);
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for (int x = 0; x < readBackImg.getWidth(); x++) {
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for (int y = 0; y < readBackImg.getHeight(); y++) {
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int redVal = (readBackImg.getRGB(x, y) & 0x00FF0000) >> 16;
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if (redVal > 127) {
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return;
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}
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}
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}
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throw new RuntimeException("Test Failed");
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}
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public static void main(String[] args) throws Exception {
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SwingUtilities.invokeLater(new Runnable() {
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public void run() {
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new HugeGradientTest();
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}
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});
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}
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}
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