[SurfaceFlinger] fix permanently enabling early offsets.
* Add notion of intended period in DispSync, and use that to detect
whether the simulated period will be changed.
* Propagate that signal to setDesiredActiveConfig, so that we don't fall
into early offsets unnecessarily, which can cause early offsets to
always be enabled.
Bug: 132678707
Test: systrace
Test: swappy test app
Test: scrolling through google news
Change-Id: I18df1b9d949cd534ecbf1c8891b6f88eab8be399
(cherry picked from commit f8e689cfd25f27c4af36a27e145d4cac1d0bb9cb)
Merged-In: I18df1b9d949cd534ecbf1c8891b6f88eab8be399
diff --git a/services/surfaceflinger/Scheduler/VSyncModulator.h b/services/surfaceflinger/Scheduler/VSyncModulator.h
index 72f9050..41c3a3a 100644
--- a/services/surfaceflinger/Scheduler/VSyncModulator.h
+++ b/services/surfaceflinger/Scheduler/VSyncModulator.h
@@ -121,7 +121,7 @@
// Called when we detect from vsync signals that the refresh rate changed.
// This way we can move out of early offsets if no longer necessary.
- void onRefreshRateChangeDetected() {
+ void onRefreshRateChangeCompleted() {
if (!mRefreshRateChangePending) {
return;
}