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Merge "Fixing wrong velocity state when there are too few samples" into ub-launcher3-rvc-qpr-dev

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TreeHugger Robot
2020-07-31 18:12:40 +00:00
committed by Android (Google) Code Review
parent 553d4dfe7d 48afb6b3b9
commit 073673e173
1 changed files with 15 additions and 10 deletions
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25
quickstep/src/com/android/quickstep/util/MotionPauseDetector.java
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@@ -358,18 +358,23 @@ public class MotionPauseDetector {
if (count < 3) {
// Too few samples
if (count == 2) {
int endPos = pointPos - 1;
if (endPos < 0) {
endPos += HISTORY_SIZE;
}
float denominator = eventTime - mHistoricTimes[endPos];
if (denominator != 0) {
return (eventTime - mHistoricPos[endPos]) / denominator;
switch (count) {
case 2: {
int endPos = pointPos - 1;
if (endPos < 0) {
endPos += HISTORY_SIZE;
}
float denominator = eventTime - mHistoricTimes[endPos];
if (denominator != 0) {
return (mHistoricPos[pointPos] - mHistoricPos[endPos]) / denominator;
}
}
// fall through
case 1:
return 0f;
default:
return null;
}
return null;
}
float Sxx = sxi2 - sxi * sxi / count;