SF now synchronizes to VSYNC

Change-Id: Ic5e4f2ea9927ce133eef9499c03161325e9d02c5

1 files changed, 8 insertions, 0 deletions

diff --git a/services/surfaceflinger/EventThread.h b/services/surfaceflinger/EventThread.h
index 35bd299a8675..3a3071ef8bea 100644
--- a/services/surfaceflinger/EventThread.h
+++ b/services/surfaceflinger/EventThread.h
@@ -36,6 +36,7 @@ namespace android {
 
 class SurfaceFlinger;
 class DisplayHardware;
+class DisplayEventConnection;
 
 // ---------------------------------------------------------------------------
 
@@ -45,6 +46,8 @@ class EventThread : public Thread {
 public:
     EventThread(const sp<SurfaceFlinger>& flinger);
 
+    sp<DisplayEventConnection> createEventConnection() const;
+
     status_t registerDisplayEventConnection(
             const sp<DisplayEventConnection>& connection);
 
@@ -56,6 +59,10 @@ public:
 
     void requestNextVsync(const wp<DisplayEventConnection>& connection);
 
+    nsecs_t getLastVSyncTimestamp() const;
+
+    nsecs_t getVSyncPeriod() const;
+
     void dump(String8& result, char* buffer, size_t SIZE) const;
 
 private:
@@ -88,6 +95,7 @@ private:
 
     // protected by mLock
     KeyedVector< wp<DisplayEventConnection>, ConnectionInfo > mDisplayEventConnections;
+    nsecs_t mLastVSyncTimestamp;
 
     // main thread only
     size_t mDeliveredEvents;