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filter: change the tracker delta type to device-units

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We were just switching type here without actual normalization, the filter code
is in device units as of bdd4264d61.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Peter Hutterer 2017-01-18 17:22:30 +10:00
parent 8660c19f71
commit 79339bca9c
1 changed files with 2 additions and 2 deletions
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4
src/filter.c
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@ -156,7 +156,7 @@ filter_get_type(struct motion_filter *filter)
#define NUM_POINTER_TRACKERS 16
struct pointer_tracker {
struct normalized_coords delta; /* delta to most recent event */
struct device_float_coords delta; /* delta to most recent event */
uint64_t time; /* us */
uint32_t dir;
};
@ -230,7 +230,7 @@ static double
calculate_tracker_velocity(struct pointer_tracker *tracker, uint64_t time)
{
double tdelta = time - tracker->time + 1;
return normalized_length(tracker->delta) / tdelta; /* units/us */
return hypot(tracker->delta.x, tracker->delta.y) / tdelta; /* units/us */
}
static inline double