1 /* 2 * Copyright 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #pragma once 17 18 #include <mutex> 19 #include <string> 20 21 #include "EventThread.h" 22 #include "TracedOrdinal.h" 23 #include "VSyncDispatch.h" 24 25 namespace android::scheduler { 26 class CallbackRepeater; 27 28 class DispSyncSource final : public VSyncSource { 29 public: 30 DispSyncSource(VSyncDispatch& vSyncDispatch, std::chrono::nanoseconds workDuration, 31 std::chrono::nanoseconds readyDuration, bool traceVsync, const char* name); 32 33 ~DispSyncSource() override; 34 35 // The following methods are implementation of VSyncSource. getName()36 const char* getName() const override { return mName; } 37 void setVSyncEnabled(bool enable) override; 38 void setCallback(VSyncSource::Callback* callback) override; 39 void setDuration(std::chrono::nanoseconds workDuration, 40 std::chrono::nanoseconds readyDuration) override; 41 42 void dump(std::string&) const override; 43 44 private: 45 void onVsyncCallback(nsecs_t vsyncTime, nsecs_t targetWakeupTime, nsecs_t readyTime); 46 47 const char* const mName; 48 TracedOrdinal<int> mValue; 49 50 const bool mTraceVsync; 51 const std::string mVsyncOnLabel; 52 53 std::unique_ptr<CallbackRepeater> mCallbackRepeater; 54 55 std::mutex mCallbackMutex; 56 VSyncSource::Callback* mCallback GUARDED_BY(mCallbackMutex) = nullptr; 57 58 mutable std::mutex mVsyncMutex; 59 TracedOrdinal<std::chrono::nanoseconds> mWorkDuration GUARDED_BY(mVsyncMutex); 60 std::chrono::nanoseconds mReadyDuration GUARDED_BY(mVsyncMutex); 61 bool mEnabled GUARDED_BY(mVsyncMutex) = false; 62 }; 63 64 } // namespace android::scheduler 65