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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.photoeditor.filters;
     18 
     19 import com.android.photoeditor.Photo;
     20 
     21 /**
     22  * Highlight filter applied to the image.
     23  */
     24 public class HighlightFilter extends Filter {
     25 
     26     private float white;
     27 
     28     /**
     29      * Sets the highlight level.
     30      *
     31      * @param highlight ranges from 0 to 1.
     32      */
     33     public void setHighlight(float highlight) {
     34         white = 1f - highlight * 0.5f;
     35         validate();
     36     }
     37 
     38     @Override
     39     public void process(Photo src, Photo dst) {
     40         ImageUtils.nativeWhiteBlack(src.bitmap(), dst.bitmap(), white, 0f);
     41     }
     42 }
     43