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/*
* Copyright 2018 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.
*/
#pragma once
#include <TimeStats/TimeStats.h>
#include <utils/Timers.h>
#include <memory>
#include "Feature.h"
namespace android {
class HWComposer;
namespace renderengine {
class RenderEngine;
} // namespace renderengine
namespace compositionengine {
class Display;
struct CompositionRefreshArgs;
struct DisplayCreationArgs;
struct LayerCreationArgs;
struct LayerFECompositionState;
/**
* Encapsulates all the interfaces and implementation details for performing
* display output composition.
*/
class CompositionEngine {
public:
virtual ~CompositionEngine();
// Create a composition Display
virtual std::shared_ptr<Display> createDisplay(const DisplayCreationArgs&) = 0;
virtual std::unique_ptr<compositionengine::LayerFECompositionState>
createLayerFECompositionState() = 0;
virtual HWComposer& getHwComposer() const = 0;
virtual void setHwComposer(std::unique_ptr<HWComposer>) = 0;
virtual renderengine::RenderEngine& getRenderEngine() const = 0;
virtual void setRenderEngine(renderengine::RenderEngine*) = 0;
virtual TimeStats* getTimeStats() const = 0;
virtual void setTimeStats(const std::shared_ptr<TimeStats>&) = 0;
virtual bool needsAnotherUpdate() const = 0;
virtual nsecs_t getLastFrameRefreshTimestamp() const = 0;
// Presents the indicated outputs
virtual void present(CompositionRefreshArgs&) = 0;
// Updates the cursor position for the indicated outputs.
virtual void updateCursorAsync(CompositionRefreshArgs&) = 0;
// TODO(b/121291683): These will become private/internal
virtual void preComposition(CompositionRefreshArgs&) = 0;
virtual FeatureFlags getFeatureFlags() const = 0;
// Debugging
virtual void dump(std::string&) const = 0;
};
} // namespace compositionengine
} // namespace android
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