bug: Only report position change events

This bug was introduced in v1.0.11. Only report events when
the pointer position is actually changing.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 8 insertions, 2 deletions

diff --git a/src/grail-api.c b/src/grail-api.c
index 9490659..d4ad83d 100644
--- a/src/grail-api.c
+++ b/src/grail-api.c
@@ -80,8 +80,14 @@ static void handle_abs_events(struct grail *ge, const struct input_event *syn)
                 impl->pointer_status = pointer;
         }
         if (pointer) {
-                evput(impl, syn->time, EV_ABS, ABS_X, impl->pointer_x);
-                evput(impl, syn->time, EV_ABS, ABS_Y, impl->pointer_y);
+                if (impl->report_x != impl->pointer_x) {
+                        evput(impl, syn->time, EV_ABS, ABS_X, impl->pointer_x);
+                        impl->report_x = impl->pointer_x;
+                }
+                if (impl->report_y != impl->pointer_y) {
+                        evput(impl, syn->time, EV_ABS, ABS_Y, impl->pointer_y);
+                        impl->report_y = impl->pointer_y;
+                }
         }
 }