/** | |
* Copyright (c) 2011, Novyon Events | |
* | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions are met: | |
* | |
* - Redistributions of source code must retain the above copyright notice, this | |
* list of conditions and the following disclaimer. | |
* | |
* - Redistributions in binary form must reproduce the above copyright notice, | |
* this list of conditions and the following disclaimer in the documentation | |
* and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* | |
* @author Anthyon | |
*/ | |
package com.jme3.terrain.noise.filter; | |
import java.nio.FloatBuffer; | |
import java.util.ArrayList; | |
import java.util.List; | |
import com.jme3.terrain.noise.Filter; | |
public abstract class AbstractFilter implements Filter { | |
protected List<Filter> preFilters = new ArrayList<Filter>(); | |
protected List<Filter> postFilters = new ArrayList<Filter>(); | |
private boolean enabled = true; | |
@Override | |
public Filter addPreFilter(Filter filter) { | |
this.preFilters.add(filter); | |
return this; | |
} | |
@Override | |
public Filter addPostFilter(Filter filter) { | |
this.postFilters.add(filter); | |
return this; | |
} | |
@Override | |
public FloatBuffer doFilter(float sx, float sy, float base, FloatBuffer data, int size) { | |
if (!this.isEnabled()) { | |
return data; | |
} | |
FloatBuffer retval = data; | |
for (Filter f : this.preFilters) { | |
retval = f.doFilter(sx, sy, base, retval, size); | |
} | |
retval = this.filter(sx, sy, base, retval, size); | |
for (Filter f : this.postFilters) { | |
retval = f.doFilter(sx, sy, base, retval, size); | |
} | |
return retval; | |
} | |
public abstract FloatBuffer filter(float sx, float sy, float base, FloatBuffer buffer, int size); | |
@Override | |
public int getMargin(int size, int margin) { | |
// TODO sums up all the margins from filters... maybe there's a more | |
// efficient algorithm | |
if (!this.isEnabled()) { | |
return margin; | |
} | |
for (Filter f : this.preFilters) { | |
margin = f.getMargin(size, margin); | |
} | |
for (Filter f : this.postFilters) { | |
margin = f.getMargin(size, margin); | |
} | |
return margin; | |
} | |
@Override | |
public boolean isEnabled() { | |
return this.enabled; | |
} | |
public void setEnabled(boolean enabled) { | |
this.enabled = enabled; | |
} | |
} |