1 /*
   2  * Copyright (c) 2007, 2017 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 
  26 package org.jemmy.image.pixel;
  27 
  28 import org.jemmy.Dimension;
  29 
  30 /**
  31  *
  32  * @author shura
  33  */
  34 public abstract class BaseCountingRasterComparator extends ThresholdComparator {
  35 
  36     /**
  37      *
  38      * @param threshold
  39      */
  40     public BaseCountingRasterComparator(double threshold) {
  41         super(0, 1);
  42         setThreshold(threshold);
  43     }
  44 
  45     /**
  46      *
  47      * @param image1
  48      * @param image2
  49      * @return
  50      */
  51     public boolean compare(Raster image1, Raster image2) {
  52         Dimension size = PixelImageComparator.computeDiffSize(image1, image2);
  53         if(size == null) {
  54             return false;
  55         }
  56         int totalPixels = size.width * size.height;
  57         int offPixels = 0;
  58         double[] colors1 = new double[image1.getSupported().length];
  59         double[] colors2 = new double[image2.getSupported().length];
  60         for (int x = 0; x < size.width; x++) {
  61             for (int y = 0; y < size.height; y++) {
  62                 image1.getColors(x, y, colors1);
  63                 image2.getColors(x, y, colors2);
  64                 if (!compare(image1.getSupported(), colors1,
  65                              image2.getSupported(), colors2)) {
  66                     offPixels++;
  67                 }
  68             }
  69         }
  70         return (offPixels <= totalPixels * getThreshold());
  71     }
  72 
  73     /**
  74      *
  75      * @param comps1
  76      * @param colors1
  77      * @param comps2
  78      * @param colors2
  79      * @return
  80      */
  81     protected abstract boolean compare(Raster.Component[] comps1, double[] colors1, Raster.Component[] comps2, double[] colors2);
  82 
  83 }