renderer-gl: Display a solid shader color when direct-display is in use

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>

libweston/renderer-gl/gl-renderer.c

@@ -839,6 +839,15 @@ setup_censor_overrides(struct weston_output *output,
 	bool unprotected_censor =
 		(ev->surface->desired_protection > output->current_protection);
 
+	if (gs->direct_display) {
+		gs->color[0] = 0.40;
+		gs->color[1] = 0.0;
+		gs->color[2] = 0.0;
+		gs->color[3] = 1.0;
+		gs->shader = &gr->solid_shader;
+		return gs->shader;
+	}
+
 	/* When not in enforced mode, the client is notified of the protection */
 	/* change, so content censoring is not required */
 	if (ev->surface->protection_mode !=
@@ -877,7 +886,7 @@ draw_view(struct weston_view *ev, struct weston_output *output,
 	/* In case of a runtime switch of renderers, we may not have received
 	 * an attach for this surface since the switch. In that case we don't
 	 * have a valid buffer or a proper shader set up so skip rendering. */
-	if (!gs->shader)
+	if (!gs->shader && !gs->direct_display)
 		return;
 
 	pixman_region32_init(&repaint);