1 /*
 2  * Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 import java.awt.color.ColorSpace;
25 import java.awt.image.BufferedImage;
26 import java.awt.image.ColorModel;
27 import java.awt.image.ComponentColorModel;
28 import java.awt.image.DataBuffer;
29 import java.awt.image.DataBufferByte;
30 import java.awt.image.Raster;
31 import java.awt.image.WritableRaster;
32 
33 /*
34  * @test
35  * @bug  4954405
36  * @summary Verify DataBuffer offsets are handled by ByteInterleavedRaster
37  */
38 
39 public class ByteInterleavedRasterOffsetsTest {
40 
41     public static void main(String[] args) {
42         byte[] data = { 0, -1, 0, 0 }; // only set the R sample.
43         int[] bandOffsets = { 0, 1, 2 };
44         DataBuffer databuf = new DataBufferByte(data, 3, 1);
45         WritableRaster raster =
46             Raster.createInterleavedRaster(databuf, 1, 1, 3, 3, bandOffsets, null);
47         int[] pixels = raster.getPixels(0, 0, 1, 1, (int[])null);
48         byte[] elements = (byte[])raster.getDataElements(0, 0, null);
49         ColorModel colorModel = new ComponentColorModel(
50                 ColorSpace.getInstance(ColorSpace.CS_sRGB), false, false,
51                 ColorModel.OPAQUE, DataBuffer.TYPE_BYTE);
52         BufferedImage img = new BufferedImage(colorModel, raster, false, null);
53         int pixel = img.getRGB(0, 0);
54 
55         System.out.println("PIXEL0=" + Integer.toHexString(pixels[0]));
56         System.out.println("PIXEL1=" + Integer.toHexString(pixels[1]));
57         System.out.println("PIXEL2=" + Integer.toHexString(pixels[2]));
58         System.out.println("ELEMENT0=" + Integer.toHexString(elements[0] & 0xff));
59         System.out.println("ELEMENT1=" + Integer.toHexString(elements[1] & 0xff));
60         System.out.println("ELEMENT2=" + Integer.toHexString(elements[2] & 0xff));
61         System.out.println("PIXEL=" + Integer.toHexString(pixel));
62 
63         if ((pixels[0] != 0xff) || (pixels[1] != 0) || (pixels[2] != 0)) {
64             throw new RuntimeException("Unexpected pixels");
65         }
66         if (((elements[0] & 0xff) != 0xff) || (elements[1] != 0) || (elements[2] != 0)) {
67             throw new RuntimeException("Unexpected elements");
68         }
69         if (pixel != 0xffff0000) {
70             throw new RuntimeException("Unexpected pixel");
71         }
72     }
73 }