1 /* 2 * Copyright (c) 2009, 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 26 * @bug 6782574 27 * @summary Test verifies that incorrect sample masks are correctly handled 28 * by the constructor of the SinglePixelPackedSampleModel class 29 * and do not cause internal error in the medialib glue code. 30 * 31 * @run main IncorrectSampleMaskTest 32 */ 33 34 import java.awt.geom.AffineTransform; 35 import java.awt.image.AffineTransformOp; 36 import java.awt.image.BufferedImageOp; 37 import java.awt.image.DataBuffer; 38 import java.awt.image.DataBufferByte; 39 import java.awt.image.DataBufferInt; 40 import java.awt.image.DataBufferUShort; 41 import java.awt.image.Raster; 42 import java.awt.image.RasterOp; 43 import java.awt.image.WritableRaster; 44 import java.awt.image.SinglePixelPackedSampleModel; 45 46 public class IncorrectSampleMaskTest { 47 public static void main(String[] args) { 48 int[] dataTypes = new int[] { 49 DataBuffer.TYPE_BYTE, 50 DataBuffer.TYPE_USHORT, 51 DataBuffer.TYPE_INT }; 52 53 for (int type : dataTypes) { 54 doTest(type); 55 } 56 } 57 58 private static final int w = 100; 59 private static final int h = 100; 60 61 private static AffineTransform at = 62 AffineTransform.getScaleInstance(0.5, 0.5); 63 64 private static RasterOp op = 65 new AffineTransformOp(at, AffineTransformOp.TYPE_NEAREST_NEIGHBOR); 66 67 private static void doTest(int dataType) { 68 int maxSize = DataBuffer.getDataTypeSize(dataType); 69 System.out.println("Type size: " + maxSize); 70 71 int theMask = (int)(1L << (maxSize + 2)) - 1; 72 System.out.printf("theMask=%x\n", theMask); 73 74 SinglePixelPackedSampleModel sm = 75 new SinglePixelPackedSampleModel(dataType, w, h, 76 new int[] { theMask }); 77 78 79 int[] sampleSize = sm.getSampleSize(); 80 for (int s : sampleSize) { 81 if (s > maxSize) { 82 throw new RuntimeException("Test failed: sample size is too big:" + s); 83 } 84 } 85 86 System.out.println("Test medialib..."); 87 DataBuffer buf = createDataBuffer(dataType); 88 89 WritableRaster wr = Raster.createWritableRaster(sm, buf, null); 90 91 op.filter(wr, null); 92 System.out.println("Test PASSED."); 93 } 94 95 private static DataBuffer createDataBuffer(int type) { 96 switch (type) { 97 case DataBuffer.TYPE_BYTE: { 98 byte[] buf = new byte[w * h]; 99 return new DataBufferByte(buf, buf.length); 100 } 101 case DataBuffer.TYPE_USHORT: { 102 short[] buf = new short[w * h]; 103 return new DataBufferUShort(buf, buf.length); 104 } 105 case DataBuffer.TYPE_INT: { 106 int[] buf = new int[w * h]; 107 return new DataBufferInt(buf, buf.length); 108 } 109 default : 110 throw new RuntimeException("Unsupported data type."); 111 } 112 } 113 }