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 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 23 * questions. 24 */ 25 package com.sun.imageio.plugins.tiff; 26 27 import javax.imageio.plugins.tiff.BaselineTIFFTagSet; 28 import java.io.IOException; 29 30 /** 31 * Uncompressed data with LSB-to-MSB fill order. 32 */ 33 public class TIFFLSBCompressor extends TIFFCompressor { 34 TIFFLSBCompressor()35 public TIFFLSBCompressor() { 36 super("", BaselineTIFFTagSet.COMPRESSION_NONE, true); 37 } 38 encode(byte[] b, int off, int width, int height, int[] bitsPerSample, int scanlineStride)39 public int encode(byte[] b, int off, 40 int width, int height, 41 int[] bitsPerSample, 42 int scanlineStride) throws IOException { 43 int bitsPerPixel = 0; 44 for (int i = 0; i < bitsPerSample.length; i++) { 45 bitsPerPixel += bitsPerSample[i]; 46 } 47 int bytesPerRow = (bitsPerPixel*width + 7)/8; 48 byte[] compData = new byte[bytesPerRow]; 49 byte[] flipTable = TIFFFaxDecompressor.flipTable; 50 for (int row = 0; row < height; row++) { 51 System.arraycopy(b, off, compData, 0, bytesPerRow); 52 for(int j = 0; j < bytesPerRow; j++) { 53 compData[j] = flipTable[compData[j]&0xff]; 54 } 55 stream.write(compData, 0, bytesPerRow); 56 off += scanlineStride; 57 } 58 return height*bytesPerRow; 59 } 60 } 61