95 lines
3.1 KiB
Java
95 lines
3.1 KiB
Java
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/*
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* Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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* @test
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* @bug 6726779
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* @summary Test verifies that ConvolveOp with the EDGE_NO_OP edge condition
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* does not cause JVM crash if size of source raster elements is
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* greather than size of the destination raster element.
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*
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* @run main EdgeNoOpCrash
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*/
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import java.awt.Point;
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import java.awt.image.ConvolveOp;
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import java.awt.image.DataBuffer;
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import java.awt.image.ImagingOpException;
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import java.awt.image.Kernel;
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import java.awt.image.Raster;
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import java.awt.image.WritableRaster;
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import java.util.Arrays;
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public class EdgeNoOpCrash {
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private static final int w = 3000;
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private static final int h = 200;
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public static void main(String[] args) {
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crashTest();
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}
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private static void crashTest() {
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Raster src = createSrcRaster();
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WritableRaster dst = createDstRaster();
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ConvolveOp op = createConvolveOp(ConvolveOp.EDGE_NO_OP);
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try {
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op.filter(src, dst);
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} catch (ImagingOpException e) {
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/*
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* The test pair of source and destination rasters
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* may cause failure of the medialib convolution routine,
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* so this exception is expected.
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*
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* The JVM crash is the only manifestation of this
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* test failure.
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*/
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}
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System.out.println("Test PASSED.");
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}
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private static Raster createSrcRaster() {
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WritableRaster r = Raster.createInterleavedRaster(DataBuffer.TYPE_USHORT,
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w, h, 4, new Point(0, 0));
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return r;
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}
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private static WritableRaster createDstRaster() {
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WritableRaster r = Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE,
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w, h, 4, new Point(0, 0));
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return r;
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}
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private static ConvolveOp createConvolveOp(int edgeHint) {
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final int kw = 3;
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final int kh = 3;
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float[] kdata = new float[kw * kh];
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float v = 1f / kdata.length;
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Arrays.fill(kdata, v);
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Kernel k = new Kernel(kw, kh, kdata);
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ConvolveOp op = new ConvolveOp(k, edgeHint, null);
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return op;
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}
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}
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