diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 76b62f1..5efc333 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -480,6 +480,8 @@
         mSharedBufferHasBeenQueued = true;
     }
 
+    mQueueBufferCondition.broadcast();
+
     return err;
 }
 
@@ -1259,6 +1261,15 @@
     return err;
 }
 
+bool Surface::waitForNextFrame(uint64_t lastFrame, nsecs_t timeout) {
+    Mutex::Autolock lock(mMutex);
+    uint64_t currentFrame = mGraphicBufferProducer->getNextFrameNumber();
+    if (currentFrame > lastFrame) {
+      return true;
+    }
+    return mQueueBufferCondition.waitRelative(mMutex, timeout) == OK;
+}
+
 namespace view {
 
 status_t Surface::writeToParcel(Parcel* parcel) const {