diff options
| -rw-r--r-- | src/state.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/state.c b/src/state.c index b9b7bbc..72bb759 100644 --- a/src/state.c +++ b/src/state.c @@ -37,7 +37,7 @@ static int fincmp(const void *a, const void *b) return ((struct FingerState *)a)->id - ((struct FingerState *)b)->id; } -inline int abs15(int x) +static inline int clamp15(int x) { return x < -XMAX ? -XMAX : x > XMAX ? XMAX : x; } @@ -45,8 +45,8 @@ inline int abs15(int x) /* abslute scale is assumed to fit in 15 bits */ inline int dist2(const struct FingerData *a, const struct FingerData *b) { - int dx = abs15(a->position_x - b->position_x); - int dy = abs15(a->position_y - b->position_y); + int dx = clamp15(a->position_x - b->position_x); + int dy = clamp15(a->position_y - b->position_y); return dx * dx + dy * dy; } |