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      1 /*
      2  * Copyright (c) 2009-2010 jMonkeyEngine
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  * * Redistributions of source code must retain the above copyright
     10  *   notice, this list of conditions and the following disclaimer.
     11  *
     12  * * Redistributions in binary form must reproduce the above copyright
     13  *   notice, this list of conditions and the following disclaimer in the
     14  *   documentation and/or other materials provided with the distribution.
     15  *
     16  * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
     17  *   may be used to endorse or promote products derived from this software
     18  *   without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 package com.jme3.audio;
     34 
     35 import com.jme3.export.InputCapsule;
     36 import com.jme3.export.JmeExporter;
     37 import com.jme3.export.JmeImporter;
     38 import com.jme3.export.OutputCapsule;
     39 import com.jme3.util.NativeObject;
     40 import java.io.IOException;
     41 
     42 public class LowPassFilter extends Filter {
     43 
     44     protected float volume, highFreqVolume;
     45 
     46     public LowPassFilter(float volume, float highFreqVolume) {
     47         super();
     48         setVolume(volume);
     49         setHighFreqVolume(highFreqVolume);
     50     }
     51 
     52     protected LowPassFilter(int id){
     53         super(id);
     54     }
     55 
     56     public float getHighFreqVolume() {
     57         return highFreqVolume;
     58     }
     59 
     60     public void setHighFreqVolume(float highFreqVolume) {
     61         if (highFreqVolume < 0 || highFreqVolume > 1)
     62             throw new IllegalArgumentException("High freq volume must be between 0 and 1");
     63 
     64         this.highFreqVolume = highFreqVolume;
     65         this.updateNeeded = true;
     66     }
     67 
     68     public float getVolume() {
     69         return volume;
     70     }
     71 
     72     public void setVolume(float volume) {
     73         if (volume < 0 || volume > 1)
     74             throw new IllegalArgumentException("Volume must be between 0 and 1");
     75 
     76         this.volume = volume;
     77         this.updateNeeded = true;
     78     }
     79 
     80     public void write(JmeExporter ex) throws IOException{
     81         super.write(ex);
     82         OutputCapsule oc = ex.getCapsule(this);
     83         oc.write(volume, "volume", 0);
     84         oc.write(highFreqVolume, "hf_volume", 0);
     85     }
     86 
     87     @Override
     88     public void read(JmeImporter im) throws IOException{
     89         super.read(im);
     90         InputCapsule ic = im.getCapsule(this);
     91         volume = ic.readFloat("volume", 0);
     92         highFreqVolume = ic.readFloat("hf_volume", 0);
     93     }
     94 
     95     @Override
     96     public NativeObject createDestructableClone() {
     97         return new LowPassFilter(id);
     98     }
     99 
    100 }
    101