136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
/*
|
|
* Copyright (C) 2011 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_SURFACE_FLINGER_EVENT_THREAD_H
|
|
#define ANDROID_SURFACE_FLINGER_EVENT_THREAD_H
|
|
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <gui/DisplayEventReceiver.h>
|
|
#include <gui/IDisplayEventConnection.h>
|
|
|
|
#include <utils/Errors.h>
|
|
#include <utils/threads.h>
|
|
#include <utils/SortedVector.h>
|
|
|
|
#include "DisplayDevice.h"
|
|
#include "DisplayHardware/PowerHAL.h"
|
|
|
|
// ---------------------------------------------------------------------------
|
|
namespace android {
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class SurfaceFlinger;
|
|
class String8;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
|
|
class VSyncSource : public virtual RefBase {
|
|
public:
|
|
class Callback: public virtual RefBase {
|
|
public:
|
|
virtual ~Callback() {}
|
|
virtual void onVSyncEvent(nsecs_t when) = 0;
|
|
};
|
|
|
|
virtual ~VSyncSource() {}
|
|
virtual void setVSyncEnabled(bool enable) = 0;
|
|
virtual void setCallback(const sp<Callback>& callback) = 0;
|
|
};
|
|
|
|
class EventThread : public Thread, private VSyncSource::Callback {
|
|
class Connection : public BnDisplayEventConnection {
|
|
public:
|
|
Connection(const sp<EventThread>& eventThread);
|
|
status_t postEvent(const DisplayEventReceiver::Event& event);
|
|
|
|
// count >= 1 : continuous event. count is the vsync rate
|
|
// count == 0 : one-shot event that has not fired
|
|
// count ==-1 : one-shot event that fired this round / disabled
|
|
int32_t count;
|
|
|
|
private:
|
|
virtual ~Connection();
|
|
virtual void onFirstRef();
|
|
virtual sp<BitTube> getDataChannel() const;
|
|
virtual void setVsyncRate(uint32_t count);
|
|
virtual void requestNextVsync(); // asynchronous
|
|
sp<EventThread> const mEventThread;
|
|
sp<BitTube> const mChannel;
|
|
};
|
|
|
|
public:
|
|
|
|
EventThread(const sp<VSyncSource>& src);
|
|
|
|
sp<Connection> createEventConnection() const;
|
|
status_t registerDisplayEventConnection(const sp<Connection>& connection);
|
|
|
|
void setVsyncRate(uint32_t count, const sp<Connection>& connection);
|
|
void requestNextVsync(const sp<Connection>& connection);
|
|
|
|
// called before the screen is turned off from main thread
|
|
void onScreenReleased();
|
|
|
|
// called after the screen is turned on from main thread
|
|
void onScreenAcquired();
|
|
|
|
// called when receiving a hotplug event
|
|
void onHotplugReceived(int type, bool connected);
|
|
|
|
Vector< sp<EventThread::Connection> > waitForEvent(
|
|
DisplayEventReceiver::Event* event);
|
|
|
|
void dump(String8& result) const;
|
|
|
|
private:
|
|
virtual bool threadLoop();
|
|
virtual void onFirstRef();
|
|
|
|
virtual void onVSyncEvent(nsecs_t timestamp);
|
|
|
|
void removeDisplayEventConnection(const wp<Connection>& connection);
|
|
void enableVSyncLocked();
|
|
void disableVSyncLocked();
|
|
|
|
// constants
|
|
sp<VSyncSource> mVSyncSource;
|
|
PowerHAL mPowerHAL;
|
|
|
|
mutable Mutex mLock;
|
|
mutable Condition mCondition;
|
|
|
|
// protected by mLock
|
|
SortedVector< wp<Connection> > mDisplayEventConnections;
|
|
Vector< DisplayEventReceiver::Event > mPendingEvents;
|
|
DisplayEventReceiver::Event mVSyncEvent[DisplayDevice::NUM_BUILTIN_DISPLAY_TYPES];
|
|
bool mUseSoftwareVSync;
|
|
bool mVsyncEnabled;
|
|
|
|
// for debugging
|
|
bool mDebugVsyncEnabled;
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#endif /* ANDROID_SURFACE_FLINGER_EVENT_THREAD_H */
|