1 /*
2  * Copyright (c) 2005, 2015, 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
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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.
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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.
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24  */
25 package com.sun.imageio.plugins.tiff;
26 
27 import javax.imageio.plugins.tiff.BaselineTIFFTagSet;
28 import java.io.IOException;
29 
30 public class TIFFNullCompressor extends TIFFCompressor {
31 
TIFFNullCompressor()32     public TIFFNullCompressor() {
33         super("", BaselineTIFFTagSet.COMPRESSION_NONE, true);
34     }
35 
encode(byte[] b, int off, int width, int height, int[] bitsPerSample, int scanlineStride)36     public int encode(byte[] b, int off,
37                       int width, int height,
38                       int[] bitsPerSample,
39                       int scanlineStride) throws IOException {
40         int bitsPerPixel = 0;
41         for (int i = 0; i < bitsPerSample.length; i++) {
42             bitsPerPixel += bitsPerSample[i];
43         }
44 
45         int bytesPerRow = (bitsPerPixel*width + 7)/8;
46         int numBytes = height*bytesPerRow;
47 
48         if(bytesPerRow == scanlineStride) {
49             stream.write(b, off, numBytes);
50         } else {
51             for (int row = 0; row < height; row++) {
52                 stream.write(b, off, bytesPerRow);
53                 off += scanlineStride;
54             }
55         }
56 
57         return numBytes;
58     }
59 }
60