sway

commit f5ba8006c9ee9df454a4f5736dde4b756bd1072b
parent c0811fcf8736961725f7aa848e740f38f2bdf6ed
Author: Simon Ser <contact@emersion.fr>
Date:   Thu,  5 Mar 2020 13:44:34 +0100

Only schedule a frame if client has requested a frame callback

When a client hasn't damaged its surface, we only need to schedule an
output frame if the client has requested a frame callback.

Diffstat:
M
sway/desktop/output.c
 | 
6
++++--

1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/sway/desktop/output.c b/sway/desktop/output.c
@@ -681,8 +681,10 @@ static void damage_surface_iterator(struct sway_output *output, struct sway_view
 		wlr_output_damage_add_box(output->damage, &box);
 	}
 
-	output->surface_needs_frame = true;
-	wlr_output_schedule_frame(output->wlr_output);
+	if (!wl_list_empty(&surface->current.frame_callback_list)) {
+		output->surface_needs_frame = true;
+		wlr_output_schedule_frame(output->wlr_output);
+	}
 }
 
 void output_damage_surface(struct sway_output *output, double ox, double oy,