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/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.android.gallery3d.photoeditor.filters;
import android.media.effect.Effect;
import android.media.effect.EffectFactory;
import com.android.gallery3d.photoeditor.Photo;
/**
* Shadow filter applied to the image.
*/
public class ShadowFilter extends Filter {
private float black;
/**
* Sets the shadow blackness level.
*
* @param shadow ranges from 0 to 1.
*/
public void setShadow(float shadow) {
black = shadow * 0.5f;
validate();
}
@Override
public void process(Photo src, Photo dst) {
Effect effect = getEffect(EffectFactory.EFFECT_BLACKWHITE);
effect.setParameter("black", black);
effect.setParameter("white", 1f);
effect.apply(src.texture(), src.width(), src.height(), dst.texture());
}
}
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