114 lines
3.8 KiB
Java
114 lines
3.8 KiB
Java
/*
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* Copyright (c) 2009, 2011, 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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/*
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* @test
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* @bug 6782574
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* @summary Test verifies that incorrect sample masks are correctly handled
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* by the constructor of the SinglePixelPackedSampleModel class
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* and do not cause internal error in the medialib glue code.
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*
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* @run main IncorrectSampleMaskTest
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*/
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import java.awt.geom.AffineTransform;
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import java.awt.image.AffineTransformOp;
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import java.awt.image.BufferedImageOp;
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import java.awt.image.DataBuffer;
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import java.awt.image.DataBufferByte;
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import java.awt.image.DataBufferInt;
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import java.awt.image.DataBufferUShort;
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import java.awt.image.Raster;
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import java.awt.image.RasterOp;
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import java.awt.image.WritableRaster;
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import java.awt.image.SinglePixelPackedSampleModel;
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public class IncorrectSampleMaskTest {
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public static void main(String[] args) {
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int[] dataTypes = new int[] {
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DataBuffer.TYPE_BYTE,
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DataBuffer.TYPE_USHORT,
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DataBuffer.TYPE_INT };
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for (int type : dataTypes) {
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doTest(type);
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}
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}
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private static final int w = 100;
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private static final int h = 100;
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private static AffineTransform at =
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AffineTransform.getScaleInstance(0.5, 0.5);
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private static RasterOp op =
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new AffineTransformOp(at, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
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private static void doTest(int dataType) {
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int maxSize = DataBuffer.getDataTypeSize(dataType);
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System.out.println("Type size: " + maxSize);
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int theMask = (int)(1L << (maxSize + 2)) - 1;
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System.out.printf("theMask=%x\n", theMask);
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SinglePixelPackedSampleModel sm =
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new SinglePixelPackedSampleModel(dataType, w, h,
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new int[] { theMask });
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int[] sampleSize = sm.getSampleSize();
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for (int s : sampleSize) {
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if (s > maxSize) {
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throw new RuntimeException("Test failed: sample size is too big:" + s);
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}
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}
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System.out.println("Test medialib...");
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DataBuffer buf = createDataBuffer(dataType);
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WritableRaster wr = Raster.createWritableRaster(sm, buf, null);
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op.filter(wr, null);
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System.out.println("Test PASSED.");
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}
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private static DataBuffer createDataBuffer(int type) {
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switch (type) {
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case DataBuffer.TYPE_BYTE: {
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byte[] buf = new byte[w * h];
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return new DataBufferByte(buf, buf.length);
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}
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case DataBuffer.TYPE_USHORT: {
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short[] buf = new short[w * h];
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return new DataBufferUShort(buf, buf.length);
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}
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case DataBuffer.TYPE_INT: {
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int[] buf = new int[w * h];
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return new DataBufferInt(buf, buf.length);
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}
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default :
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throw new RuntimeException("Unsupported data type.");
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}
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}
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}
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