Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 | |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 17 | #pragma once |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 18 | |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 19 | #include <condition_variable> |
Lloyd Pique | 0c3a883 | 2018-01-22 17:31:47 -0800 | [diff] [blame] | 20 | #include <cstddef> |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 21 | #include <functional> |
| 22 | #include <mutex> |
| 23 | #include <thread> |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 24 | |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 25 | #include <android-base/thread_annotations.h> |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 26 | |
| 27 | namespace android { |
| 28 | |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 29 | class EventControlThread { |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 30 | public: |
Lloyd Pique | 0c3a883 | 2018-01-22 17:31:47 -0800 | [diff] [blame] | 31 | virtual ~EventControlThread(); |
| 32 | |
| 33 | virtual void setVsyncEnabled(bool enabled) = 0; |
| 34 | }; |
| 35 | |
| 36 | namespace impl { |
| 37 | |
| 38 | class EventControlThread final : public android::EventControlThread { |
| 39 | public: |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 40 | using SetVSyncEnabledFunction = std::function<void(bool)>; |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 41 | |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 42 | explicit EventControlThread(SetVSyncEnabledFunction function); |
| 43 | ~EventControlThread(); |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 44 | |
Lloyd Pique | 0c3a883 | 2018-01-22 17:31:47 -0800 | [diff] [blame] | 45 | // EventControlThread implementation |
| 46 | void setVsyncEnabled(bool enabled) override; |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 47 | |
| 48 | private: |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 49 | void threadMain(); |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 50 | |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 51 | std::mutex mMutex; |
| 52 | std::condition_variable mCondition; |
| 53 | |
| 54 | const SetVSyncEnabledFunction mSetVSyncEnabled; |
| 55 | bool mVsyncEnabled GUARDED_BY(mMutex) = false; |
| 56 | bool mKeepRunning GUARDED_BY(mMutex) = true; |
| 57 | |
| 58 | // Must be last so that everything is initialized before the thread starts. |
| 59 | std::thread mThread{&EventControlThread::threadMain, this}; |
Jamie Gennis | d170075 | 2013-10-14 12:22:52 -0700 | [diff] [blame] | 60 | }; |
| 61 | |
Lloyd Pique | 0c3a883 | 2018-01-22 17:31:47 -0800 | [diff] [blame] | 62 | } // namespace impl |
Lloyd Pique | 755e319 | 2018-01-31 16:46:15 -0800 | [diff] [blame] | 63 | } // namespace android |