SurfaceFlinger: add display power state timer
Coming out of DOZE mode might result in unstable HWVsync which may
confuse FPS detection logic to set the desired refresh rate.
To mitigate that, this change introduces a new timer that will provide
a grace period when coming out of DOZE while in this grace period refresh
rate will stay in PERFORMANCE.
Test: Toggle DOZE by hitting the power button and collect systrace
Bug: 135550670
Change-Id: Ib8ec3c9550336d691dd3868405d20b98aa983302
Merged-In: Ib8ec3c9550336d691dd3868405d20b98aa983302
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index eaad37c..39c39d7 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -177,6 +177,9 @@
// Function that resets the touch timer.
void notifyTouchEvent();
+ // Function that sets whether display power mode is normal or not.
+ void setDisplayPowerState(bool normal);
+
// Returns relevant information about Scheduler for dumpsys purposes.
std::string doDump();
@@ -197,6 +200,7 @@
enum class ContentFeatureState { CONTENT_DETECTION_ON, CONTENT_DETECTION_OFF };
enum class IdleTimerState { EXPIRED, RESET };
enum class TouchState { INACTIVE, ACTIVE };
+ enum class DisplayPowerTimerState { EXPIRED, RESET };
// Creates a connection on the given EventThread and forwards the given callbacks.
sp<EventThreadConnection> createConnectionInternal(EventThread*, ResyncCallback&&,
@@ -221,12 +225,15 @@
void resetTouchTimerCallback();
// Function that is called when the touch timer expires.
void expiredTouchTimerCallback();
+ // Function that is called when the display power timer resets.
+ void resetDisplayPowerTimerCallback();
+ // Function that is called when the display power timer expires.
+ void expiredDisplayPowerTimerCallback();
// Sets vsync period.
void setVsyncPeriod(const nsecs_t period);
- // Idle timer feature's function to change the refresh rate.
- void timerChangeRefreshRate(IdleTimerState idleTimerState);
- // Touch timer feature's function to change the refresh rate.
- void touchChangeRefreshRate(TouchState touchState);
+ // handles various timer features to change the refresh rate.
+ template <class T>
+ void handleTimerStateChanged(T* currentState, T newState, bool eventOnContentDetection);
// Calculate the new refresh rate type
RefreshRateType calculateRefreshRateType() REQUIRES(mFeatureStateLock);
// Acquires a lock and calls the ChangeRefreshRateCallback() with given parameters.
@@ -282,6 +289,10 @@
int64_t mSetTouchTimerMs = 0;
std::unique_ptr<scheduler::IdleTimer> mTouchTimer;
+ // Timer used to monitor display power mode.
+ int64_t mSetDisplayPowerTimerMs = 0;
+ std::unique_ptr<scheduler::IdleTimer> mDisplayPowerTimer;
+
std::mutex mCallbackLock;
ChangeRefreshRateCallback mChangeRefreshRateCallback GUARDED_BY(mCallbackLock);
GetVsyncPeriod mGetVsyncPeriod GUARDED_BY(mCallbackLock);
@@ -293,9 +304,12 @@
ContentFeatureState::CONTENT_DETECTION_OFF;
IdleTimerState mCurrentIdleTimerState GUARDED_BY(mFeatureStateLock) = IdleTimerState::RESET;
TouchState mCurrentTouchState GUARDED_BY(mFeatureStateLock) = TouchState::INACTIVE;
+ DisplayPowerTimerState mDisplayPowerTimerState GUARDED_BY(mFeatureStateLock) =
+ DisplayPowerTimerState::EXPIRED;
uint32_t mContentRefreshRate GUARDED_BY(mFeatureStateLock);
RefreshRateType mRefreshRateType GUARDED_BY(mFeatureStateLock);
bool mIsHDRContent GUARDED_BY(mFeatureStateLock) = false;
+ bool mIsDisplayPowerStateNormal GUARDED_BY(mFeatureStateLock) = true;
const scheduler::RefreshRateConfigs& mRefreshRateConfigs;