From: Rui Matos <tiagomatos@gmail.com>
Date: Mon, 6 Jun 2016 18:28:34 +0000 (+0200)
Subject: shell-recorder: Avoid a crash when the cursor texture is NULL
X-Git-Tag: archive/raspbian/50.5-1+rpi1~1^2~1013^2^2~823
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=2a7f9f70b836aee8605876186ff75d001d8ce63d;p=gnome-shell.git

shell-recorder: Avoid a crash when the cursor texture is NULL

When running as a wayland compositor, MetaCursorTracker might
legitimately not have a displayed cursor because e.g. a client unsets
the cursor surface.

Note that, under an X session, the assumption that the tracker always
has a cursor texture is true because XFixesGetCursorImage() always
returns data even if the cursor isn't visible.

https://bugzilla.gnome.org/show_bug.cgi?id=767001
---

diff --git a/src/shell-recorder.c b/src/shell-recorder.c
index ef729ff5f..e7562ef01 100644
--- a/src/shell-recorder.c
+++ b/src/shell-recorder.c
@@ -321,6 +321,9 @@ recorder_fetch_cursor_image (ShellRecorder *recorder)
   guint8 *data;
 
   texture = meta_cursor_tracker_get_sprite (recorder->cursor_tracker);
+  if (!texture)
+    return;
+
   width = cogl_texture_get_width (texture);
   height = cogl_texture_get_height (texture);
   stride = 4 * width;