1 files changed, 18 insertions, 0 deletions

diff --git a/swaylock/main.c b/swaylock/main.c
index f31ed679..1c0cef2b 100644
--- a/swaylock/main.c
+++ b/swaylock/main.c
@@ -84,6 +84,13 @@ static const struct zwlr_layer_surface_v1_listener layer_surface_listener;
 static cairo_surface_t *select_image(struct swaylock_state *state,
                 struct swaylock_surface *surface);
 
+static bool surface_is_opaque(struct swaylock_surface *surface) {
+        if (surface->image) {
+                return cairo_surface_get_content(surface->image) == CAIRO_CONTENT_COLOR;
+        }
+        return (surface->state->args.color & 0xff) == 0xff;
+}
+
 static void create_layer_surface(struct swaylock_surface *surface) {
         struct swaylock_state *state = surface->state;
 
@@ -108,6 +115,17 @@ static void create_layer_surface(struct swaylock_surface *surface) {
                         surface->layer_surface, true);
         zwlr_layer_surface_v1_add_listener(surface->layer_surface,
                         &layer_surface_listener, surface);
+
+        if (surface_is_opaque(surface) &&
+                        surface->state->args.mode != BACKGROUND_MODE_CENTER &&
+                        surface->state->args.mode != BACKGROUND_MODE_FIT) {
+                struct wl_region *region =
+                        wl_compositor_create_region(surface->state->compositor);
+                wl_region_add(region, 0, 0, INT32_MAX, INT32_MAX);
+                wl_surface_set_opaque_region(surface->surface, region);
+                wl_region_destroy(region);
+        }
+
         wl_surface_commit(surface->surface);
 }