filter: make the MAX_VELOCITY_DIFF a double

The value is 0.001 which happens to be 0 when you cast it to int.

Introduced in e3554f38f8016ad89ffb7d9569eaa48769d48255

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/src/filter.c b/src/filter.c
index dd66da7..7b7e005 100644 (file)
--- a/src/filter.c
+++ b/src/filter.c
@@ -206,7 +206,7 @@ trackers_velocity_after_timeout(struct pointer_tracker *tracker,
 double
 trackers_velocity(struct pointer_trackers *trackers, uint64_t time)
 {
-       const int MAX_VELOCITY_DIFF = v_ms2us(1); /* units/us */
+       const double MAX_VELOCITY_DIFF = v_ms2us(1); /* units/us */
        struct pointer_tracker *tracker;
        double velocity;
        double result = 0.0;