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/*
* 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
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