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/*
* 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;
}
}
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