From: Jonas Dreßler <verdre@v0yd.nl>
Date: Thu, 13 Feb 2020 21:50:40 +0000 (+0100)
Subject: blur-effect: Handle failure of background blitting gracefully
X-Git-Tag: archive/raspbian/50.5-1+rpi1~1^2~751^2^2~32
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=91748aedb75d2f9f5f8259ce96ababa089c229d3;p=gnome-shell.git

blur-effect: Handle failure of background blitting gracefully

`paint_background` already provides a return value in case the blitting
of the framebuffer fails, handle that and fall back to only drawing the
actor in case something goes wrong.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/1000
---

diff --git a/src/shell-blur-effect.c b/src/shell-blur-effect.c
index c3fb3bc60..5e50ab886 100644
--- a/src/shell-blur-effect.c
+++ b/src/shell-blur-effect.c
@@ -807,7 +807,9 @@ shell_blur_effect_paint (ClutterEffect           *effect,
               break;
 
             case SHELL_BLUR_MODE_BACKGROUND:
-              paint_background (self, paint_context, &source_actor_box);
+              if (!paint_background (self, paint_context, &source_actor_box))
+                goto fail;
+
               apply_blur (self, paint_context, &self->background_fb, 255);
               break;
             }