blast: add desired present time
Add the option to set a desiredPresentTime for a transaction. This
lets the framework know approximately when the transaction should
be presented.
Test: Transaction_test
Bug: 80477568
Change-Id: Ic25617fb93f2c249b3b3c7a8f90f72ec358938f0
diff --git a/services/surfaceflinger/Scheduler/DispSync.cpp b/services/surfaceflinger/Scheduler/DispSync.cpp
index b74b901..9b2a6fc 100644
--- a/services/surfaceflinger/Scheduler/DispSync.cpp
+++ b/services/surfaceflinger/Scheduler/DispSync.cpp
@@ -657,6 +657,9 @@
Mutex::Autolock lock(mMutex);
nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
nsecs_t phase = mReferenceTime + mPhase;
+ if (mPeriod == 0) {
+ return 0;
+ }
return (((now - phase) / mPeriod) + periodOffset + 1) * mPeriod + phase;
}