blob: 94e63faa5079f82823ed9e7b52515be119247d0c
| 1 | /* |
| 2 | // Copyright (c) 2014 Intel Corporation |
| 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 | // This file is modified by Amlogic, Inc. 2017.01.17. |
| 17 | */ |
| 18 | |
| 19 | #ifndef SOFT_VSYNC_OBSERVER_H |
| 20 | #define SOFT_VSYNC_OBSERVER_H |
| 21 | |
| 22 | #include <SimpleThread.h> |
| 23 | |
| 24 | namespace android { |
| 25 | namespace amlogic { |
| 26 | |
| 27 | class IDisplayDevice; |
| 28 | |
| 29 | class SoftVsyncObserver { |
| 30 | public: |
| 31 | SoftVsyncObserver(IDisplayDevice& disp); |
| 32 | virtual ~SoftVsyncObserver(); |
| 33 | |
| 34 | public: |
| 35 | virtual bool initialize(); |
| 36 | virtual void deinitialize(); |
| 37 | virtual void setRefreshPeriod(nsecs_t period); |
| 38 | virtual bool control(bool enabled); |
| 39 | virtual nsecs_t getRefreshPeriod() const { return mRefreshPeriod; } |
| 40 | |
| 41 | private: |
| 42 | IDisplayDevice& mDisplayDevice; |
| 43 | int mDevice; |
| 44 | bool mEnabled; |
| 45 | nsecs_t mRefreshPeriod; |
| 46 | mutable Mutex mLock; |
| 47 | Condition mCondition; |
| 48 | mutable nsecs_t mNextFakeVSync; |
| 49 | bool mExitThread; |
| 50 | bool mInitialized; |
| 51 | |
| 52 | private: |
| 53 | DECLARE_THREAD(VsyncEventPollThread, SoftVsyncObserver); |
| 54 | }; |
| 55 | |
| 56 | } // namespace amlogic |
| 57 | } // namespace android |
| 58 | |
| 59 | |
| 60 | |
| 61 | #endif /* SOFT_VSYNC_OBSERVER_H */ |
| 62 | |
| 63 |