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-rw-r--r--src/evdev-tablet.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/evdev-tablet.c b/src/evdev-tablet.c
index 1120598..413fb42 100644
--- a/src/evdev-tablet.c
+++ b/src/evdev-tablet.c
@@ -1479,6 +1479,9 @@ tablet_send_events(struct tablet_dispatch *tablet,
tablet_check_notify_axes(tablet, device, tool, &axes, time);
}
+ assert(tablet->axes.delta.x == 0);
+ assert(tablet->axes.delta.y == 0);
+
tablet_send_proximity_in(tablet, tool, device, &axes, time);
if (!tablet_send_tip(tablet, tool, device, &axes, time))
tablet_send_axes(tablet, tool, device, &axes, time);