5c876fa6b2
Vsync array size is specified as HWC_DISPLAY_TYPES_SUPPORTED whose value luckily happens to be 2. That enum is actually used for querying hwc for the number of displays supported. The implementation file EventThread.cpp correctly accesses the array upto HWC_NUM_DISPLAY_TYPES Change-Id: I36e3f0913e7d6fda7bbf4449c1fb32c7f18bb934 Signed-off-by: Amara Venkata Mastan Manoj Kumar<manojavm@codeaurora.org> Signed-off-by: Saurabh Shah <saurshah@codeaurora.org>
121 lines
3.7 KiB
C++
121 lines
3.7 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 <hardware/hwcomposer_defs.h>
|
|
|
|
#include <utils/Errors.h>
|
|
#include <utils/threads.h>
|
|
#include <utils/SortedVector.h>
|
|
|
|
#include "DisplayHardware/PowerHAL.h"
|
|
|
|
// ---------------------------------------------------------------------------
|
|
namespace android {
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class SurfaceFlinger;
|
|
class String8;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class EventThread : public Thread {
|
|
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<SurfaceFlinger>& flinger);
|
|
|
|
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 vsync event
|
|
void onVSyncReceived(int type, nsecs_t timestamp);
|
|
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();
|
|
|
|
void removeDisplayEventConnection(const wp<Connection>& connection);
|
|
void enableVSyncLocked();
|
|
void disableVSyncLocked();
|
|
|
|
// constants
|
|
sp<SurfaceFlinger> mFlinger;
|
|
PowerHAL mPowerHAL;
|
|
|
|
mutable Mutex mLock;
|
|
mutable Condition mCondition;
|
|
|
|
// protected by mLock
|
|
SortedVector< wp<Connection> > mDisplayEventConnections;
|
|
Vector< DisplayEventReceiver::Event > mPendingEvents;
|
|
DisplayEventReceiver::Event mVSyncEvent[HWC_NUM_DISPLAY_TYPES];
|
|
bool mUseSoftwareVSync;
|
|
|
|
// for debugging
|
|
bool mDebugVsyncEnabled;
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#endif /* ANDROID_SURFACE_FLINGER_EVENT_THREAD_H */
|