/*******************************************************************************
* Copyright 2012 tsagrista
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.bitfire.postprocessing.effects;
import com.badlogic.gdx.graphics.glutils.FrameBuffer;
import com.bitfire.postprocessing.PostProcessorEffect;
import com.bitfire.postprocessing.filters.FxaaFilter;
/** Implements the fast approximate anti-aliasing. Very fast and useful for combining with other post-processing effects.
* @author Toni Sagrista */
public final class Fxaa extends PostProcessorEffect {
private FxaaFilter fxaaFilter = null;
/** Creatie a Fxaa with the viewport size */
public Fxaa (int viewportWidth, int viewportHeight) {
setup(viewportWidth, viewportHeight);
}
private void setup (int viewportWidth, int viewportHeight) {
fxaaFilter = new FxaaFilter(viewportWidth, viewportHeight);
}
public void setViewportSize (int width, int height) {
fxaaFilter.setViewportSize(width, height);
}
/** Sets the span max parameter. The default value is 8.
* @param value */
public void setSpanMax (float value) {
fxaaFilter.setFxaaSpanMax(value);
}
@Override
public void dispose () {
if (fxaaFilter != null) {
fxaaFilter.dispose();
fxaaFilter = null;
}
}
@Override
public void rebind () {
fxaaFilter.rebind();
}
@Override
public void render (FrameBuffer src, FrameBuffer dest) {
restoreViewport(dest);
fxaaFilter.setInput(src).setOutput(dest).render();
}
}