100 lines
3.1 KiB
Java
100 lines
3.1 KiB
Java
/*
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* Copyright (c) 2013, 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 8004801
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* @summary Test verifies that byte lookup table with single lookup
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* affects only color components in buffered images with
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* integer data type, and that this operation does not distort
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* colors in the destination image.
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* @run main IntImageReverseTest
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*/
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import java.awt.image.BufferedImage;
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import java.awt.image.ByteLookupTable;
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import java.awt.image.LookupOp;
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import java.awt.image.LookupTable;
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public class IntImageReverseTest {
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public static void main(String[] args) {
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LookupTable tbl = createReverseTable();
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LookupOp op = new LookupOp(tbl, null);
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for (ImageType t : ImageType.values()) {
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System.out.print(t);
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BufferedImage src = createSourceImage(t);
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BufferedImage dst = op.filter(src, null);
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int rgb = dst.getRGB(0, 0);
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System.out.printf(" Result: 0x%X ", rgb);
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if (rgb != argbReverse) {
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throw new RuntimeException("Test failed.");
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}
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System.out.println("Passed.");
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}
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}
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/**
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* Reverse image color components, leave alpha unchanged.
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*/
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private static LookupTable createReverseTable() {
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byte[] data = new byte[256];
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for (int i = 0; i < 256; i++) {
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data[i] = (byte) (255 - i);
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}
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return new ByteLookupTable(0, data);
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}
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private static BufferedImage createSourceImage(ImageType type) {
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BufferedImage img = new BufferedImage(1, 1, type.bi_type);
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img.setRGB(0, 0, argbTest);
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return img;
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}
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private static final int argbTest = 0xFFDDAA77;
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private static final int argbReverse = 0xFF225588;
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private static enum ImageType {
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INT_ARGB(BufferedImage.TYPE_INT_ARGB),
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INT_ARGB_PRE(BufferedImage.TYPE_INT_ARGB_PRE),
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INT_RGB(BufferedImage.TYPE_INT_BGR),
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INT_BGR(BufferedImage.TYPE_INT_BGR);
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private ImageType(int bi_type) {
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this.bi_type = bi_type;
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}
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public final int bi_type;
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}
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}
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