/*
 * $RCSfile: TIFFLSBCompressor.java,v $
 *
 * 
 * Copyright (c) 2005 Sun Microsystems, Inc. All  Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met: 
 * 
 * - Redistribution of source code must retain the above copyright 
 *   notice, this  list of conditions and the following disclaimer.
 * 
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in 
 *   the documentation and/or other materials provided with the
 *   distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of 
 * contributors may be used to endorse or promote products derived 
 * from this software without specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any 
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND 
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL 
 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF 
 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR 
 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES. 
 * 
 * You acknowledge that this software is not designed or intended for 
 * use in the design, construction, operation or maintenance of any 
 * nuclear facility. 
 *
 * $Revision: 1.1 $
 * $Date: 2005-02-11 05:01:47 $
 * $State: Exp $
 */
package com.sun.media.imageioimpl.plugins.tiff;

import com.sun.media.imageio.plugins.tiff.BaselineTIFFTagSet;
import com.sun.media.imageio.plugins.tiff.TIFFCompressor;
import java.io.IOException;

/**
 * Uncompressed data with LSB-to-MSB fill order.
 */
public class TIFFLSBCompressor extends TIFFCompressor {

    public TIFFLSBCompressor() {
        super("", BaselineTIFFTagSet.COMPRESSION_NONE, true);
    }

    public int encode(byte[] b, int off,
                      int width, int height,
                      int[] bitsPerSample,
                      int scanlineStride) throws IOException {
        int bitsPerPixel = 0;
        for (int i = 0; i < bitsPerSample.length; i++) {
            bitsPerPixel += bitsPerSample[i];
        }
        int bytesPerRow = (bitsPerPixel*width + 7)/8;
        byte[] compData = new byte[bytesPerRow];
        byte[] flipTable = TIFFFaxDecompressor.flipTable;
        for (int row = 0; row < height; row++) {
            System.arraycopy(b, off, compData, 0, bytesPerRow);
            for(int j = 0; j < bytesPerRow; j++) {
                compData[j] = flipTable[compData[j]&0xff];
            }
            stream.write(compData, 0, bytesPerRow);
            off += scanlineStride;
        }
        return height*bytesPerRow;
    }
}
