Merge changes I843fd9ef,Ife0a5721 into qt-dev (ab54fb71) · Commits · e / os / android_frameworks_native-old

libs/input/VelocityTracker.cpp

+20 −2

Original line number	Diff line number	Diff line
		@@ -382,7 +382,16 @@ void LeastSquaresVelocityTrackerStrategy::clearPointers(BitSet32 idBits) {

		void LeastSquaresVelocityTrackerStrategy::addMovement(nsecs_t eventTime, BitSet32 idBits,
		const VelocityTracker::Position* positions) {
		if (++mIndex == HISTORY_SIZE) {
		if (mMovements[mIndex].eventTime != eventTime) {
		// When ACTION_POINTER_DOWN happens, we will first receive ACTION_MOVE with the coordinates
		// of the existing pointers, and then ACTION_POINTER_DOWN with the coordinates that include
		// the new pointer. If the eventtimes for both events are identical, just update the data
		// for this time.
		// We only compare against the last value, as it is likely that addMovement is called
		// in chronological order as events occur.
		mIndex++;
		}
		if (mIndex == HISTORY_SIZE) {
		mIndex = 0;
		}

		@@ -1017,7 +1026,16 @@ void ImpulseVelocityTrackerStrategy::clearPointers(BitSet32 idBits) {

		void ImpulseVelocityTrackerStrategy::addMovement(nsecs_t eventTime, BitSet32 idBits,
		const VelocityTracker::Position* positions) {
		if (++mIndex == HISTORY_SIZE) {
		if (mMovements[mIndex].eventTime != eventTime) {
		// When ACTION_POINTER_DOWN happens, we will first receive ACTION_MOVE with the coordinates
		// of the existing pointers, and then ACTION_POINTER_DOWN with the coordinates that include
		// the new pointer. If the eventtimes for both events are identical, just update the data
		// for this time.
		// We only compare against the last value, as it is likely that addMovement is called
		// in chronological order as events occur.
		mIndex++;
		}
		if (mIndex == HISTORY_SIZE) {
		mIndex = 0;
		}