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Only consume touches up until the frame time

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When resampling is disabled, it's currently possible to consume
touches after the current frame time. This breaks some guarantees and
could cause unexpected behaviors.

Change-Id: I99908a2cac2df9f795dd4a07188b4451213cf3e4
This commit is contained in:
Michael Wright 2013-10-21 12:05:22 -07:00
parent 8507586903
commit 3223217aed
1 changed files with 6 additions and 3 deletions
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9
libs/input/InputTransport.cpp
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@ -511,14 +511,17 @@ status_t InputConsumer::consumeBatch(InputEventFactoryInterface* factory,
status_t result;
for (size_t i = mBatches.size(); i-- > 0; ) {
Batch& batch = mBatches.editItemAt(i);
if (frameTime < 0 || !mResampleTouch) {
if (frameTime < 0) {
result = consumeSamples(factory, batch, batch.samples.size(),
outSeq, outEvent);
mBatches.removeAt(i);
return result;
}
nsecs_t sampleTime = frameTime - RESAMPLE_LATENCY;
nsecs_t sampleTime = frameTime;
if (mResampleTouch) {
sampleTime -= RESAMPLE_LATENCY;
}
ssize_t split = findSampleNoLaterThan(batch, sampleTime);
if (split < 0) {
continue;
@ -532,7 +535,7 @@ status_t InputConsumer::consumeBatch(InputEventFactoryInterface* factory,
} else {
next = &batch.samples.itemAt(0);
}
if (!result) {
if (!result && mResampleTouch) {
resampleTouchState(sampleTime, static_cast<MotionEvent*>(*outEvent), next);
}
return result;