| /* |
| * 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 <hardware/hwcomposer2.h> |
| #include <stdint.h> |
| |
| #include <atomic> |
| #include <functional> |
| #include <map> |
| |
| #include "DrmDevice.h" |
| #include "utils/Worker.h" |
| |
| namespace android { |
| |
| class VSyncWorker : public Worker { |
| public: |
| VSyncWorker(); |
| ~VSyncWorker() override = default; |
| |
| auto Init(DrmDevice *drm, int display, |
| std::function<void(uint64_t /*timestamp*/)> callback) -> int; |
| |
| void VSyncControl(bool enabled); |
| |
| protected: |
| void Routine() override; |
| |
| private: |
| int64_t GetPhasedVSync(int64_t frame_ns, int64_t current) const; |
| int SyntheticWaitVBlank(int64_t *timestamp); |
| |
| DrmDevice *drm_; |
| |
| std::function<void(uint64_t /*timestamp*/)> callback_; |
| |
| int display_; |
| std::atomic_bool enabled_; |
| int64_t last_timestamp_; |
| }; |
| } // namespace android |
| |
| #endif |