org.jpedal.parser.image.ThreeComponentImage Maven / Gradle / Ivy

/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/support/
 *
 * (C) Copyright 1997-2016 IDRsolutions and Contributors.
 *
 * This file is part of JPedal/JPDF2HTML5
 *
     This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


 *
 * ---------------
 * ThreeComponentImage.java
 * ---------------
 */

package org.jpedal.parser.image;

import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.awt.image.DataBufferByte;
import java.awt.image.Raster;
import java.util.Arrays;
import org.jpedal.io.ColorSpaceConvertor;
import org.jpedal.utils.LogWriter;

/**
 *
 * @author markee
 */
class ThreeComponentImage {
    
    
    public static BufferedImage make(int d, byte[] data, byte[] index, int w, int h) {
        
        BufferedImage image;
        
        //some odd files with 16 bit need to be down-sampled to work with 8 bit (fogbugz 15839)
        // baseline_screens/14jan/fatt18SKYspeseOND13.pdf
        if(d==16){
            final int origSize=data.length;
            final int newSize=origSize/2;
            
            final byte[] newData=new byte[newSize];
            
            for(int ptr=0;ptr-->