Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 78c05b84 authored by Andrew de los Reyes's avatar Andrew de los Reyes Committed by Android Git Automerger
Browse files

am d120254f: am c9b39239: am 6c51a07d: am de18f6c3: InputResampling: Don\'t... 

am d120254f: am c9b39239: am 6c51a07d: am de18f6c3: InputResampling: Don\'t extrapolate for very low frame rates.

* commit 'd120254f':
  InputResampling: Don't extrapolate for very low frame rates.
parents a2a7315a d120254f

libs/input/InputTransport.cpp

+11 −2
Original line number Diff line number Diff line
@@ -51,6 +51,10 @@ static const nsecs_t RESAMPLE_LATENCY = 5 * NANOS_PER_MS; 
// Minimum time difference between consecutive samples before attempting to resample.

static const nsecs_t RESAMPLE_MIN_DELTA = 2 * NANOS_PER_MS;



// Maximum time difference between consecutive samples before attempting to resample

// by extrapolation.

static const nsecs_t RESAMPLE_MAX_DELTA = 20 * NANOS_PER_MS;



// Maximum time to predict forward from the last known state, to avoid predicting too

// far into the future.  This time is further bounded by 50% of the last time delta.

static const nsecs_t RESAMPLE_MAX_PREDICTION = 8 * NANOS_PER_MS;
@@ -725,7 +729,7 @@ void InputConsumer::resampleTouchState(nsecs_t sampleTime, MotionEvent* event, 
        nsecs_t delta = future.eventTime - current->eventTime;

        if (delta < RESAMPLE_MIN_DELTA) {

#if DEBUG_RESAMPLING

            ALOGD("Not resampled, delta time is %lld ns.", delta);

            ALOGD("Not resampled, delta time is too small: %lld ns.", delta);

#endif

            return;

        }
@@ -737,7 +741,12 @@ void InputConsumer::resampleTouchState(nsecs_t sampleTime, MotionEvent* event, 
        nsecs_t delta = current->eventTime - other->eventTime;

        if (delta < RESAMPLE_MIN_DELTA) {

#if DEBUG_RESAMPLING

            ALOGD("Not resampled, delta time is %lld ns.", delta);

            ALOGD("Not resampled, delta time is too small: %lld ns.", delta);

#endif

            return;

        } else if (delta > RESAMPLE_MAX_DELTA) {

#if DEBUG_RESAMPLING

            ALOGD("Not resampled, delta time is too large: %lld ns.", delta);

#endif

            return;

        }