commit 0f4d7bc1844af4934a0288e715a4f1350fd5dac2
author Jeff Brown <jeffbrown@google.com> Thu Aug 19 11:55:13 2010 -0700
committer Jeff Brown <jeffbrown@google.com> Thu Aug 19 13:26:58 2010 -0700
tree b97592a41cd0db3c6758a02dec829dac69ebf51d
parent 3d8c9bdbed0c31143227697bd0d94fd234fe08ad

Make the throttling more sensitive to end-to-end latency.

The code now takes into account the time when the event was generated.
So with a 60Hz throttling rate, it ensures that a motion event will not
be delayed due to throttling by any more than 1/60th of second past
the time it was generated.

Change-Id: Iaea1d4f76e79036b4a18873485230731c3cd63c3

libs/ui/InputDispatcher.cpp

diff --git a/libs/ui/InputDispatcher.cpp b/libs/ui/InputDispatcher.cpp
index ce616a4..e35050c 100644
--- a/libs/ui/InputDispatcher.cpp
+++ b/libs/ui/InputDispatcher.cpp
@@ -201,7 +201,8 @@
                     }
 #endif
 
-                    mThrottleState.lastEventTime = currentTime;
+                    mThrottleState.lastEventTime = entry->eventTime < currentTime
+                            ? entry->eventTime : currentTime;
                     mThrottleState.lastDeviceId = deviceId;
                     mThrottleState.lastSource = source;
                 }