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/*
* Copyright (c) 2008, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.sun.scenario.effect;
import com.sun.scenario.effect.impl.EffectPeer;
import com.sun.scenario.effect.impl.Renderer;
import com.sun.javafx.geom.Rectangle;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.scenario.effect.impl.state.RenderState;
/**
* Package-private base class for built-in effects, i.e., those that are
* backed by an EffectPeer implementation.
*/
abstract class CoreEffect extends FilterEffect {
private String peerKey;
private int peerCount = -1;
CoreEffect() {
super();
}
CoreEffect(Effect input) {
super(input);
}
CoreEffect(Effect input1, Effect input2) {
super(input1, input2);
}
final void updatePeerKey(String key) {
updatePeerKey(key, -1);
}
final void updatePeerKey(String key, int unrollCount) {
this.peerKey = key;
this.peerCount = unrollCount;
}
private EffectPeer getPeer(FilterContext fctx, int approxW, int approxH) {
return Renderer.getRenderer(fctx, this, approxW, approxH).
getPeerInstance(fctx, peerKey, peerCount);
}
/**
* Returns an {@code EffectPeer} that is most optimal for the size
* of the operation, which is inferred from the given inputs.
* For example, smaller operations may run faster in software (by
* avoiding high overhead of shader-based operations) so here we choose
* an appropriate Renderer/EffectPeer combination based on the
* dimensions of the first input.
*/
final EffectPeer getPeer(FilterContext fctx, ImageData[] inputs) {
// RT-27395
// TODO: we would be much better off using getResultBounds() here
// to infer the size of the operation since some effects (e.g. Flood)
// do not have any inputs to consult...
int approxW, approxH;
if (inputs.length > 0) {
Rectangle approxBounds = inputs[0].getUntransformedBounds();
approxW = approxBounds.width;
approxH = approxBounds.height;
} else {
// NOTE: temporary hack until we start using result bounds
// (see comment above)...
approxW = approxH = 500;
}
return getPeer(fctx, approxW, approxH);
}
/**
* Convenience method that sends the given input data through the
* current peer, and then attempts to release the input image data.
*/
@Override
public ImageData filterImageDatas(FilterContext fctx,
BaseTransform transform,
Rectangle outputClip,
T rstate,
ImageData... inputs)
{
return getPeer(fctx, inputs).filter(this, rstate, transform, outputClip, inputs);
}
@Override
public AccelType getAccelType(FilterContext fctx) {
// We choose relatively large (yet arbitrary) values for approxW/H
// here so that we get the AccelType for the "ideal" case where
// hardware acceleration is used.
EffectPeer peer = getPeer(fctx, 1024, 1024);
return peer.getAccelType();
}
}
