org.jpedal.parser.image.utils.ArrayUtils 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 1997-2017 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


 *
 * ---------------
 * ArrayUtils.java
 * ---------------
 */
package org.jpedal.parser.image.utils;

/**
 * @author markee
 */
public class ArrayUtils {

    public static boolean isArrayInverted(final float[] decodeArray) {

        //work out if inverted (assume true and disprove)
        boolean arrayInverted = false;
        if (decodeArray != null) {

            arrayInverted = true;
            final int count = decodeArray.length;
            for (int aa = 0; aa < count; aa += 2) {
                if (decodeArray[aa] == 1f && decodeArray[aa + 1] == 0f) {
                    //okay
                } else {
                    arrayInverted = false;
                    aa = count;
                }
            }
        }
        return arrayInverted;
    }
}