[PATCH 4/4] touchpad: make tp_estimate_delta return fractions

[Hans de Goede]

Force a cast of the input arguments to a double before the divide, rather
then after the divide.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 src/evdev-mt-touchpad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index 1e2f58d..b88fa80 100644
--- a/src/evdev-mt-touchpad.c
+++ b/src/evdev-mt-touchpad.c
@@ -163,7 +163,7 @@ tp_end_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 static double
 tp_estimate_delta(int x0, int x1, int x2, int x3)
 {
-	return (x0 + x1 - x2 - x3) / 4;
+	return (x0 + x1 - x2 - x3) / 4.0;
 }
 
 void
-- 
2.0.1