/*

 * 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;

    }

}