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Allow batching samples onto the pending motion event. (DO NOT MERGE)

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This enlarges the window of opportunity for batching to
encompass time spent for the window to become ready (while it is
busy processing the last event).

Change-Id: I8870cc3081d27a4de659fb4e375f888fe966460b
This commit is contained in:
Jeff Brown
2011-04-06 17:19:48 -07:00
committed by Jeff Brown
parent d0132e8e18
commit 7157f6fe13
1 changed files with 28 additions and 0 deletions
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28
services/input/InputDispatcher.cpp
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@@ -2403,6 +2403,34 @@ void InputDispatcher::notifyMotion(nsecs_t eventTime, int32_t deviceId, uint32_t
return; // done!
}
// BATCHING ONTO PENDING EVENT CASE
//
// Try to append a move sample to the currently pending event, if there is one.
// We can do this as long as we are still waiting to find the targets for the
// event. Once the targets are locked-in we can only do streaming.
if (mPendingEvent
&& (!mPendingEvent->dispatchInProgress || !mCurrentInputTargetsValid)
&& mPendingEvent->type == EventEntry::TYPE_MOTION) {
MotionEntry* motionEntry = static_cast<MotionEntry*>(mPendingEvent);
if (motionEntry->deviceId == deviceId && motionEntry->source == source) {
if (motionEntry->action != action
|| motionEntry->pointerCount != pointerCount
|| motionEntry->isInjected()) {
// Pending event is not compatible for appending new samples. Stop here.
goto NoBatchingOrStreaming;
}
// The pending motion event is a move and is compatible for appending.
// Do the batching magic.
mAllocator.appendMotionSample(motionEntry, eventTime, pointerCoords);
#if DEBUG_BATCHING
LOGD("Appended motion sample onto batch for the pending motion event.");
#endif
mLock.unlock();
return; // done!
}
}
// STREAMING CASE
//
// There is no pending motion event (of any kind) for this device in the inbound queue.