SF: Permit changing DispSync offsets at runtime
This modifies EventThread such that its phase offsets for both
Choreographer and SurfaceFlinger may be modified at runtime. It also
plumbs this functionality up to the SurfaceFlinger debug interface so
that it is possible to rapidly test different offsets without
restarting the framework.
Change-Id: I426873f8553f931250dfebc9a8a4a78e9f1f4309
diff --git a/services/surfaceflinger/EventThread.cpp b/services/surfaceflinger/EventThread.cpp
index 9b6360e..f760200 100644
--- a/services/surfaceflinger/EventThread.cpp
+++ b/services/surfaceflinger/EventThread.cpp
@@ -71,6 +71,11 @@
mVsyncHintSent = false;
}
+void EventThread::setPhaseOffset(nsecs_t phaseOffset) {
+ Mutex::Autolock _l(mLock);
+ mVSyncSource->setPhaseOffset(phaseOffset);
+}
+
void EventThread::sendVsyncHintOnLocked() {
struct itimerspec ts;
if(!mVsyncHintSent) {