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-rw-r--r--src/hwdata.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/hwdata.h b/src/hwdata.h
index 15a9fcb..5dd99cf 100644
--- a/src/hwdata.h
+++ b/src/hwdata.h
@@ -81,4 +81,11 @@ void init_hwdata(struct HWData *hw);
int read_hwdata(struct HWData *hw, const struct input_event* ev);
void output_hwdata(const struct HWData *hw);
+static inline int finger_dist2(const struct FingerData *a,
+ const struct FingerData *b)
+{
+ return dist2(a->position_x - b->position_x,
+ a->position_y - b->position_y);
+}
+
#endif