63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
/*
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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 <mutex>
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#include <string>
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#include "DispSync.h"
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#include "EventThread.h"
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#include "TracedOrdinal.h"
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namespace android {
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class DispSyncSource final : public VSyncSource, private DispSync::Callback {
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public:
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DispSyncSource(DispSync* dispSync, nsecs_t phaseOffset, bool traceVsync, const char* name);
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~DispSyncSource() override = default;
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// The following methods are implementation of VSyncSource.
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const char* getName() const override { return mName; }
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void setVSyncEnabled(bool enable) override;
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void setCallback(VSyncSource::Callback* callback) override;
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void setPhaseOffset(nsecs_t phaseOffset) override;
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void dump(std::string&) const override;
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private:
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// The following method is the implementation of the DispSync::Callback.
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void onDispSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) override;
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const char* const mName;
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TracedOrdinal<int> mValue;
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const bool mTraceVsync;
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const std::string mVsyncOnLabel;
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nsecs_t mLastCallbackTime GUARDED_BY(mVsyncMutex) = 0;
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DispSync* mDispSync;
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std::mutex mCallbackMutex;
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VSyncSource::Callback* mCallback GUARDED_BY(mCallbackMutex) = nullptr;
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mutable std::mutex mVsyncMutex;
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TracedOrdinal<nsecs_t> mPhaseOffset GUARDED_BY(mVsyncMutex);
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bool mEnabled GUARDED_BY(mVsyncMutex) = false;
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};
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} // namespace android
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