From 3a94822e755e530b71c33bb5bce0e8faa438983c Mon Sep 17 00:00:00 2001
From: Joan Torres <joan.torres@suse.com>
Date: Mon, 18 Dec 2023 18:33:16 +0100
Subject: [PATCH] clutter/actor: Set a minimum guessed scale

When running headlessly it fails guessing the scale to -1.0f making
the assertion g_assert (guessed_scale >= 0.5) fail.

Setting it to 1.f in that case fixes it.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3464>
---
 clutter/clutter/clutter-actor.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/clutter/clutter/clutter-actor.c b/clutter/clutter/clutter-actor.c
index dcada9d7b..deecca55d 100644
--- a/clutter/clutter/clutter-actor.c
+++ b/clutter/clutter/clutter-actor.c
@@ -14666,6 +14666,9 @@ clutter_actor_get_real_resource_scale (ClutterActor *self)
           max_scale = MAX (clutter_stage_view_get_scale (view), max_scale);
         }
 
+      if (max_scale < 0.f)
+        max_scale = 1.f;
+
       guessed_scale = max_scale;
     }
   else