1/* 2 * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24import java.awt.*; 25import java.awt.image.*; 26import javax.swing.*; 27 28/** 29 * @test 30 * @key headful 31 * @bug 8162591 32 * @summary tests gradients with start/endpoints exceeding Short.MAX coordinates 33 * @author ceisserer 34 */ 35 36public class HugeGradientTest extends Frame { 37 public static volatile boolean success = false; 38 39 public HugeGradientTest() { 40 Image dstImg = getGraphicsConfiguration() 41 .createCompatibleVolatileImage(30, 30); 42 Graphics2D g = (Graphics2D) dstImg.getGraphics(); 43 44 g.setPaint(new LinearGradientPaint(0f, Short.MAX_VALUE, 0f, Short.MAX_VALUE +31, 45 new float[]{0f, 1f}, new Color[]{Color.BLACK, Color.RED})); 46 g.translate(0, -Short.MAX_VALUE); 47 g.fillRect (0, 0, Short.MAX_VALUE*2 , Short.MAX_VALUE*2); 48 49 BufferedImage readBackImg = new BufferedImage(dstImg.getWidth(null), 50 dstImg.getHeight(null), BufferedImage.TYPE_INT_RGB); 51 readBackImg.getGraphics().drawImage(dstImg, 0, 0, null); 52 53 for (int x = 0; x < readBackImg.getWidth(); x++) { 54 for (int y = 0; y < readBackImg.getHeight(); y++) { 55 int redVal = (readBackImg.getRGB(x, y) & 0x00FF0000) >> 16; 56 57 if (redVal > 127) { 58 return; 59 } 60 } 61 } 62 63 throw new RuntimeException("Test Failed"); 64 } 65 66 public static void main(String[] args) throws Exception { 67 SwingUtilities.invokeLater(new Runnable() { 68 public void run() { 69 new HugeGradientTest(); 70 } 71 }); 72 } 73} 74