From: Florian Müllner <fmuellner@gnome.org>
Date: Thu, 29 Jun 2017 22:06:53 +0000 (+0200)
Subject: st: Don't try to create shadow for empty texture
X-Git-Tag: archive/raspbian/50.5-1+rpi1~1^2~1013^2^2~281
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=d1c71fd00d82b517da439a36ce86ca403c645fa2;p=gnome-shell.git

st: Don't try to create shadow for empty texture

Even though the API documentation doesn't say so, the underlying
Cogl texture of a ClutterTexture may be unset, so check for that
case to avoid a runtime warning.

https://bugzilla.gnome.org/show_bug.cgi?id=784353
---

diff --git a/src/st/st-private.c b/src/st/st-private.c
index b00a2bdd7..0db257aa2 100644
--- a/src/st/st-private.c
+++ b/src/st/st-private.c
@@ -420,7 +420,8 @@ _st_create_shadow_pipeline_from_actor (StShadow     *shadow_spec,
       CoglTexture *texture;
 
       texture = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (actor));
-      shadow_pipeline = _st_create_shadow_pipeline (shadow_spec, texture);
+      if (texture)
+        shadow_pipeline = _st_create_shadow_pipeline (shadow_spec, texture);
     }
   else
     {