Revert^2 "SF: Introduce VsyncTimeline to VsyncPredictor"
Add the concept of timeline freezing when switching render rate.
This allow us to change render rates in sync with the app and remain
jank free across render rate changes.
Bug: 326599221
Test: Run TouchLatency, change render rate and examine Perfetto trace
Change-Id: Ic91d482593d6b978c28e3c6c0d19e2c055d5f149
diff --git a/services/surfaceflinger/Scheduler/VSyncTracker.h b/services/surfaceflinger/Scheduler/VSyncTracker.h
index 37bd4b4..1e55a87 100644
--- a/services/surfaceflinger/Scheduler/VSyncTracker.h
+++ b/services/surfaceflinger/Scheduler/VSyncTracker.h
@@ -56,8 +56,8 @@
* and avoid crossing the minimal frame period of a VRR display.
* \return A prediction of the timestamp of a vsync event.
*/
- virtual nsecs_t nextAnticipatedVSyncTimeFrom(
- nsecs_t timePoint, std::optional<nsecs_t> lastVsyncOpt = {}) const = 0;
+ virtual nsecs_t nextAnticipatedVSyncTimeFrom(nsecs_t timePoint,
+ std::optional<nsecs_t> lastVsyncOpt = {}) = 0;
/*
* The current period of the vsync signal.
@@ -82,7 +82,7 @@
* \param [in] timePoint A vsync timestamp
* \param [in] frameRate The frame rate to check for
*/
- virtual bool isVSyncInPhase(nsecs_t timePoint, Fps frameRate) const = 0;
+ virtual bool isVSyncInPhase(nsecs_t timePoint, Fps frameRate) = 0;
/*
* Sets the active mode of the display which includes the vsync period and other VRR attributes.