sway

commit 3dffe7f3a641848b246b7c543c0c3ec183823cdb
parent dd8b6f5e68b0a4c1251fc9fdec30aa145b75636f
Author: Simon Ser <contact@emersion.fr>
Date:   Mon, 14 Mar 2022 17:44:49 +0100

swaybar: set opaque region

When the background color is fully opaque, set the surface's opaque
region to the whole surface.

Diffstat:
M
swaybar/render.c
 | 
9
+++++++++

1 file changed, 9 insertions(+), 0 deletions(-)
diff --git a/swaybar/render.c b/swaybar/render.c
@@ -831,6 +831,15 @@ void render_frame(struct swaybar_output *output) {
 		wl_surface_damage(output->surface, 0, 0,
 				output->width, output->height);
 
+		uint32_t bg_alpha = ctx.background_color & 0xFF;
+		if (bg_alpha == 0xFF) {
+			struct wl_region *region =
+				wl_compositor_create_region(output->bar->compositor);
+			wl_region_add(region, 0, 0, INT32_MAX, INT32_MAX);
+			wl_surface_set_opaque_region(output->surface, region);
+			wl_region_destroy(region);
+		}
+
 		struct wl_callback *frame_callback = wl_surface_frame(output->surface);
 		wl_callback_add_listener(frame_callback, &output_frame_listener, output);
 		output->frame_scheduled = true;