01: /*
02: * $RCSfile: BitsPerComponentBox.java,v $
03: *
04: *
05: * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
06: *
07: * Redistribution and use in source and binary forms, with or without
08: * modification, are permitted provided that the following conditions
09: * are met:
10: *
11: * - Redistribution of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: *
14: * - Redistribution in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in
16: * the documentation and/or other materials provided with the
17: * distribution.
18: *
19: * Neither the name of Sun Microsystems, Inc. or the names of
20: * contributors may be used to endorse or promote products derived
21: * from this software without specific prior written permission.
22: *
23: * This software is provided "AS IS," without a warranty of any
24: * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
25: * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
26: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
27: * EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
28: * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
29: * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
30: * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
31: * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
32: * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
33: * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
34: * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
35: * POSSIBILITY OF SUCH DAMAGES.
36: *
37: * You acknowledge that this software is not designed or intended for
38: * use in the design, construction, operation or maintenance of any
39: * nuclear facility.
40: *
41: * $Revision: 1.1 $
42: * $Date: 2005/02/11 05:01:31 $
43: * $State: Exp $
44: */
45:
46: package com.sun.media.imageioimpl.plugins.jpeg2000;
47:
48: import javax.imageio.metadata.IIOInvalidTreeException;
49: import javax.imageio.metadata.IIOMetadataNode;
50: import org.w3c.dom.Node;
51: import org.w3c.dom.NodeList;
52:
53: /** This class is defined to represent a Bits Per Component Box of JPEG
54: * JP2 file format. A Bits Per Component box has a length, and a fixed
55: * type of "bpcc". Its content is a byte array containing the bit
56: * depths of the color components.
57: *
58: * This box is necessary only when the bit depth are not identical for all
59: * the components.
60: */
61: public class BitsPerComponentBox extends Box {
62: /** Counstructs a <code>BitsPerComponentBox</code> from the provided
63: * byte array containing the bit depths of each color component.
64: */
65: public BitsPerComponentBox(byte[] bitDepth) {
66: super (8 + bitDepth.length, 0x62706363, null);
67: data = bitDepth;
68: }
69:
70: /** Constructs a <code>BitsPerComponentBox</code> based on the provide
71: * <code>org.w3c.dom.Node</code>.
72: */
73: public BitsPerComponentBox(Node node)
74: throws IIOInvalidTreeException {
75: super (node);
76: NodeList children = node.getChildNodes();
77:
78: for (int i = 0; i < children.getLength(); i++) {
79: Node child = children.item(i);
80: String name = child.getNodeName();
81:
82: if ("BitDepth".equals(name)) {
83: data = Box.getByteArrayElementValue(child);
84: }
85: }
86: }
87:
88: /** Returns the bit depths for all the image components. */
89: public byte[] getBitDepth() {
90: return data;
91: }
92: }
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