1 /* 2 * Copyright (c) 2011, 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 /* 25 * @test %W% %E% 26 * @bug 7016495 27 * @summary Test tiny scales of BufferedImage 28 */ 29 30 import java.awt.*; 31 import java.awt.geom.*; 32 import java.awt.image.*; 33 34 public class TinyScale { 35 static double tinyscales[] = { 36 1E-0, 37 1E-1, 38 1E-2, 39 1E-3, 40 1E-4, 41 1E-5, 42 1E-6, 43 1E-7, 44 1E-8, 45 1E-9, 46 1E-10, 47 1E-11, 48 1E-12, 49 1E-13, 50 1E-14, 51 1E-15, 52 1E-16, 53 1E-17, 54 1E-18, 55 1E-19, 56 1E-20, 57 1E-21, 58 1E-22, 59 1E-23, 60 1E-24, 61 1E-25, 62 1E-26, 63 1E-27, 64 1E-28, 65 1E-29, 66 }; 67 68 static void test(BufferedImage rendImg, BufferedImage drawImg, double s) { 69 Graphics2D g = drawImg.createGraphics(); 70 g.transform(new AffineTransform(s, 0.0, -1.0, 1.0, 0.0, 0.0)); 71 g.drawImage(rendImg, 72 -rendImg.getWidth() / 2, 73 -rendImg.getHeight() / 2, 74 null); 75 g.drawImage(rendImg, 0, 0, null); 76 g.dispose(); 77 } 78 79 public static void main(String[] args) { 80 BufferedImage rendImg = 81 new BufferedImage(100, 100, BufferedImage.TYPE_3BYTE_BGR); 82 BufferedImage drawImg = 83 new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB); 84 for (double s: tinyscales) { 85 test(rendImg, drawImg, s); 86 for (int i = 0; args.length > 0 && i < 10; i++) { 87 test(rendImg, drawImg, Math.random()*s); 88 } 89 } 90 } 91 }