1 /*
2 * Copyright (c) 2003, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
41
42 import javax.imageio.IIOImage;
43 import javax.imageio.IIOException;
44 import javax.imageio.ImageTypeSpecifier;
45 import javax.imageio.ImageWriteParam;
46 import javax.imageio.ImageWriter;
47 import javax.imageio.metadata.IIOMetadata;
48 import javax.imageio.metadata.IIOMetadataFormatImpl;
49 import javax.imageio.metadata.IIOInvalidTreeException;
50 import javax.imageio.spi.ImageWriterSpi;
51 import javax.imageio.stream.ImageOutputStream;
52
53 import com.sun.imageio.plugins.common.I18N;
54
55 /**
56 * The Java Image IO plugin writer for encoding a binary RenderedImage into
57 * a WBMP format.
58 *
59 * The encoding process may clip, subsample using the parameters
60 * specified in the {@code ImageWriteParam}.
61 *
62 * @see com.sun.media.imageio.plugins.WBMPImageWriteParam
63 */
64 public class WBMPImageWriter extends ImageWriter {
65 /** The output stream to write into */
66 private ImageOutputStream stream = null;
67
68 // Get the number of bits required to represent an int.
69 private static int getNumBits(int intValue) {
70 int numBits = 32;
71 int mask = 0x80000000;
72 while(mask != 0 && (intValue & mask) == 0) {
73 numBits--;
74 mask >>>= 1;
75 }
76 return numBits;
77 }
78
79 // Convert an int value to WBMP multi-byte format.
80 private static byte[] intToMultiByte(int intValue) {
81 int numBitsLeft = getNumBits(intValue);
82 byte[] multiBytes = new byte[(numBitsLeft + 6)/7];
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1 /*
2 * Copyright (c) 2003, 2017, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
41
42 import javax.imageio.IIOImage;
43 import javax.imageio.IIOException;
44 import javax.imageio.ImageTypeSpecifier;
45 import javax.imageio.ImageWriteParam;
46 import javax.imageio.ImageWriter;
47 import javax.imageio.metadata.IIOMetadata;
48 import javax.imageio.metadata.IIOMetadataFormatImpl;
49 import javax.imageio.metadata.IIOInvalidTreeException;
50 import javax.imageio.spi.ImageWriterSpi;
51 import javax.imageio.stream.ImageOutputStream;
52
53 import com.sun.imageio.plugins.common.I18N;
54
55 /**
56 * The Java Image IO plugin writer for encoding a binary RenderedImage into
57 * a WBMP format.
58 *
59 * The encoding process may clip, subsample using the parameters
60 * specified in the {@code ImageWriteParam}.
61 */
62 public class WBMPImageWriter extends ImageWriter {
63 /** The output stream to write into */
64 private ImageOutputStream stream = null;
65
66 // Get the number of bits required to represent an int.
67 private static int getNumBits(int intValue) {
68 int numBits = 32;
69 int mask = 0x80000000;
70 while(mask != 0 && (intValue & mask) == 0) {
71 numBits--;
72 mask >>>= 1;
73 }
74 return numBits;
75 }
76
77 // Convert an int value to WBMP multi-byte format.
78 private static byte[] intToMultiByte(int intValue) {
79 int numBitsLeft = getNumBits(intValue);
80 byte[] multiBytes = new byte[(numBitsLeft + 6)/7];
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