--- /dev/null Thu Jan 31 14:28:47 2013 +++ new/test/java/awt/image/LookupOp/IntImageReverseTest.java Thu Jan 31 14:28:46 2013 @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 8004801 + * @summary Test verifies that byte lookup table with single lookup + * affects only color components in buffered images with + * integer data type, and that this operation does not distort + * colors in the destination image. + * @run main IntImageReverseTest + */ + +import java.awt.image.BufferedImage; +import java.awt.image.ByteLookupTable; +import java.awt.image.LookupOp; +import java.awt.image.LookupTable; + +public class IntImageReverseTest { + + public static void main(String[] args) { + LookupTable tbl = createReverseTable(); + LookupOp op = new LookupOp(tbl, null); + + for (ImageType t : ImageType.values()) { + System.out.print(t); + + BufferedImage src = createSourceImage(t); + + BufferedImage dst = op.filter(src, null); + + int rgb = dst.getRGB(0, 0); + + System.out.printf(" Result: 0x%X ", rgb); + + if (rgb != argbReverse) { + throw new RuntimeException("Test failed."); + } + System.out.println("Passed."); + } + } + + /** + * Reverse image color components, leave alpha unchanged. + */ + private static LookupTable createReverseTable() { + byte[] data = new byte[256]; + + for (int i = 0; i < 256; i++) { + data[i] = (byte) (255 - i); + } + + + return new ByteLookupTable(0, data); + } + + private static BufferedImage createSourceImage(ImageType type) { + BufferedImage img = new BufferedImage(1, 1, type.bi_type); + + img.setRGB(0, 0, argbTest); + + return img; + } + private static final int argbTest = 0xFFDDAA77; + private static final int argbReverse = 0xFF225588; + + private static enum ImageType { + + INT_ARGB(BufferedImage.TYPE_INT_ARGB), + INT_ARGB_PRE(BufferedImage.TYPE_INT_ARGB_PRE), + INT_RGB(BufferedImage.TYPE_INT_BGR), + INT_BGR(BufferedImage.TYPE_INT_BGR); + + private ImageType(int bi_type) { + this.bi_type = bi_type; + } + public final int bi_type; + } +}