Merge "Add the getLatestExpectedPresentTimeNanos method for Choreographer" into main (49bc7460) · Commits · e / os / android_frameworks_base

core/java/android/view/Choreographer.java

+19 −0

Original line number	Diff line number	Diff line
		@@ -749,6 +749,25 @@ public final class Choreographer {
		return getExpectedPresentationTimeNanos() / TimeUtils.NANOS_PER_MS;
		}

		/**
		* Same as {@link #getExpectedPresentationTimeNanos()},
		* Should always use {@link #getExpectedPresentationTimeNanos()} if it's possilbe.
		* This method involves a binder call to SF,
		* calling this method can potentially influence the performance.
		*
		* @return The frame start time, in the {@link System#nanoTime()} time base.
		*
		* @hide
		*/
		public long getLatestExpectedPresentTimeNanos() {
		if (mDisplayEventReceiver == null) {
		return System.nanoTime();
		}

		return mDisplayEventReceiver.getLatestVsyncEventData()
		.preferredFrameTimeline().expectedPresentationTime;
		}

		private void scheduleFrameLocked(long now) {
		if (!mFrameScheduled) {
		mFrameScheduled = true;