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71 lines
2.3 KiB
71 lines
2.3 KiB
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <sys/types.h>
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#include <cstdint>
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#include "Layer.h"
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namespace android {
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// A layer that can render a combination of the following effects.
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// * fill the bounds of the layer with a color
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// * render a shadow cast by the bounds of the layer
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// If no effects are enabled, the layer is considered to be invisible.
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class EffectLayer : public Layer {
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public:
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explicit EffectLayer(const LayerCreationArgs&);
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~EffectLayer() override;
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sp<compositionengine::LayerFE> getCompositionEngineLayerFE() const override;
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compositionengine::LayerFECompositionState* editCompositionState() override;
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const char* getType() const override { return "EffectLayer"; }
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bool isVisible() const override;
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bool setColor(const half3& color) override;
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bool setDataspace(ui::Dataspace dataspace) override;
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ui::Dataspace getDataSpace() const override;
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bool isOpaque(const Layer::State& s) const override;
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protected:
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/*
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* compositionengine::LayerFE overrides
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*/
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const compositionengine::LayerFECompositionState* getCompositionState() const override;
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void preparePerFrameCompositionState() override;
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std::vector<compositionengine::LayerFE::LayerSettings> prepareClientCompositionList(
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compositionengine::LayerFE::ClientCompositionTargetSettings& targetSettings) override;
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std::unique_ptr<compositionengine::LayerFECompositionState> mCompositionState;
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sp<Layer> createClone() override;
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private:
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// Returns true if there is a valid color to fill.
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bool fillsColor() const;
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// Returns true if this layer has a blur value.
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bool hasBlur() const;
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bool hasSomethingToDraw() const { return fillsColor() || drawShadows() || hasBlur(); }
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};
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} // namespace android
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