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87 lines
2.5 KiB
87 lines
2.5 KiB
4 months ago
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/*
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* Copyright 2018 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 <atomic>
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#include <unordered_set>
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#include <utils/Mutex.h>
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#include "../Scheduler/OneShotTimer.h"
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#include "DisplayIdentification.h"
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namespace android {
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class SurfaceFlinger;
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namespace Hwc2 {
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class PowerAdvisor {
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public:
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virtual ~PowerAdvisor();
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// Initializes resources that cannot be initialized on construction
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virtual void init() = 0;
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virtual void onBootFinished() = 0;
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virtual void setExpensiveRenderingExpected(DisplayId displayId, bool expected) = 0;
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virtual bool isUsingExpensiveRendering() = 0;
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virtual void notifyDisplayUpdateImminent() = 0;
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};
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namespace impl {
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// PowerAdvisor is a wrapper around IPower HAL which takes into account the
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// full state of the system when sending out power hints to things like the GPU.
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class PowerAdvisor final : public Hwc2::PowerAdvisor {
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public:
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class HalWrapper {
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public:
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virtual ~HalWrapper() = default;
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virtual bool setExpensiveRendering(bool enabled) = 0;
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virtual bool notifyDisplayUpdateImminent() = 0;
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};
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PowerAdvisor(SurfaceFlinger& flinger);
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~PowerAdvisor() override;
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void init() override;
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void onBootFinished() override;
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void setExpensiveRenderingExpected(DisplayId displayId, bool expected) override;
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bool isUsingExpensiveRendering() override { return mNotifiedExpensiveRendering; }
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void notifyDisplayUpdateImminent() override;
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private:
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HalWrapper* getPowerHal() REQUIRES(mPowerHalMutex);
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bool mReconnectPowerHal GUARDED_BY(mPowerHalMutex) = false;
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std::mutex mPowerHalMutex;
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std::atomic_bool mBootFinished = false;
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std::unordered_set<DisplayId> mExpensiveDisplays;
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bool mNotifiedExpensiveRendering = false;
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SurfaceFlinger& mFlinger;
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const bool mUseScreenUpdateTimer;
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std::atomic_bool mSendUpdateImminent = true;
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scheduler::OneShotTimer mScreenUpdateTimer;
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};
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} // namespace impl
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} // namespace Hwc2
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} // namespace android
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