| /* |
| * 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. |
| */ |
| |
| #include <gui/DisplayEventReceiver.h> |
| #include <utils/Log.h> |
| #include <utils/Looper.h> |
| |
| namespace android { |
| |
| class DisplayEventDispatcher : public LooperCallback { |
| public: |
| explicit DisplayEventDispatcher( |
| const sp<Looper>& looper, |
| ISurfaceComposer::VsyncSource vsyncSource = ISurfaceComposer::eVsyncSourceApp, |
| ISurfaceComposer::ConfigChanged configChanged = |
| ISurfaceComposer::eConfigChangedSuppress); |
| |
| status_t initialize(); |
| void dispose(); |
| status_t scheduleVsync(); |
| void requestLatestConfig(); |
| int getFd() const; |
| virtual int handleEvent(int receiveFd, int events, void* data); |
| |
| protected: |
| virtual ~DisplayEventDispatcher() = default; |
| |
| private: |
| sp<Looper> mLooper; |
| DisplayEventReceiver mReceiver; |
| bool mWaitingForVsync; |
| |
| virtual void dispatchVsync(nsecs_t timestamp, PhysicalDisplayId displayId, uint32_t count) = 0; |
| virtual void dispatchHotplug(nsecs_t timestamp, PhysicalDisplayId displayId, |
| bool connected) = 0; |
| virtual void dispatchConfigChanged(nsecs_t timestamp, PhysicalDisplayId displayId, |
| int32_t configId, nsecs_t vsyncPeriod) = 0; |
| |
| bool processPendingEvents(nsecs_t* outTimestamp, PhysicalDisplayId* outDisplayId, |
| uint32_t* outCount); |
| }; |
| } // namespace android |