1 /* 2 * Copyright (c) 2014, 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 24 import java.awt.*; 25 import java.awt.image.*; 26 import javax.swing.*; 27 28 /** 29 * @test 30 * @bug 8162591 31 * @summary tests gradients with start/endpoints exceeding Short.MAX coordinates 32 * @author ceisserer 33 */ 34 public class HugeGradientTest extends Frame { 35 public static volatile boolean success = false; 36 37 public HugeGradientTest() { 38 Image dstImg = getGraphicsConfiguration() 39 .createCompatibleVolatileImage(30, 30); 40 Graphics2D g = (Graphics2D) dstImg.getGraphics(); 41 42 g.setPaint(new LinearGradientPaint(0f, Short.MAX_VALUE, 0f, Short.MAX_VALUE +31, 43 new float[]{0f, 1f}, new Color[]{Color.BLACK, Color.RED})); 44 g.translate(0, -Short.MAX_VALUE); 45 g.fillRect (0, 0, Short.MAX_VALUE*2 , Short.MAX_VALUE*2); 46 47 BufferedImage readBackImg = new BufferedImage(dstImg.getWidth(null), 48 dstImg.getHeight(null), BufferedImage.TYPE_INT_RGB); 49 readBackImg.getGraphics().drawImage(dstImg, 0, 0, null); 50 51 for (int x = 0; x < readBackImg.getWidth(); x++) { 52 for (int y = 0; y < readBackImg.getHeight(); y++) { 53 int redVal = (readBackImg.getRGB(x, y) & 0x00FF0000) >> 16; 54 55 if (redVal > 127) { 56 return; 57 } 58 } 59 } 60 61 throw new RuntimeException("Test Failed"); 62 } 63 64 public static void main(String[] args) throws Exception { 65 SwingUtilities.invokeLater(new Runnable() { 66 public void run() { 67 new HugeGradientTest(); 68 } 69 }); 70 } 71 }