| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_EVENT_WORKER_H_ |
| #define ANDROID_EVENT_WORKER_H_ |
| |
| #include <hardware/hardware.h> |
| #include <hardware/hwcomposer.h> |
| #include <stdint.h> |
| #include <utils/String8.h> |
| |
| #include <map> |
| |
| #include "drmdevice.h" |
| #include "worker.h" |
| |
| namespace android { |
| |
| class VsyncCallback { |
| public: |
| virtual ~VsyncCallback() {} |
| virtual void Callback(int display, int64_t timestamp) = 0; |
| }; |
| |
| class VSyncWorker : public Worker { |
| public: |
| VSyncWorker(); |
| ~VSyncWorker() override; |
| |
| int Init(DrmDevice* drm, int display, const String8& displayTraceName); |
| void RegisterCallback(std::shared_ptr<VsyncCallback> callback); |
| |
| void VSyncControl(bool enabled); |
| |
| protected: |
| void Routine() override; |
| |
| private: |
| int GetPhasedVSync(uint32_t vsyncPeriodNs, int64_t& expectTimeNs); |
| int SyntheticWaitVBlank(int64_t& timestamp); |
| |
| DrmDevice* mDrmDevice; |
| |
| // shared_ptr since we need to use this outside of the thread lock (to |
| // actually call the hook) and we don't want the memory freed until we're |
| // done |
| std::shared_ptr<VsyncCallback> mCallback = NULL; |
| |
| int mDisplay; |
| std::atomic_bool mEnabled; |
| int64_t mLastTimestampNs; |
| String8 mHwVsyncPeriodTag; |
| String8 mHwVsyncEnabledTag; |
| String8 mDisplayTraceName; |
| }; |
| } // namespace android |
| |
| #endif |