[gnome-games] retro-runner: Defer core.run() until resetting

[Alexander Mikhaylenko <alexm src gnome org>]

commit a21c60d8fabf7b26f3857db085ba60445979ff36
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Thu Jan 30 02:13:00 2020 +0500

    retro-runner: Defer core.run() until resetting
    
    Doing core.run() early seems to break Picodrive memory loading, as it
    reports 0 memory size after that. However, at the same time not doing it
    at all breaks PX68k, as it crashes on core.reset(). Considering the
    expected boot order isn't documented, try to please both by moving
    core.run() to immediately before resetting, so that memory is already
    restored by that time. It doesn't seem to regress anything on the first
    glance and can always be reverted if it does after all.

 src/retro/retro-runner.vala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index 0325bf7e..951e389b 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -239,6 +239,8 @@ public class Games.RetroRunner : Object, Runner {
 
                        is_ready = true;
                }
+
+               core.run (); // Needed to finish preparing some cores.
                core.reset ();
 
                loop.start ();
@@ -275,8 +277,6 @@ public class Games.RetroRunner : Object, Runner {
 
                core.shutdown.connect (on_shutdown);
 
-               core.run (); // Needed to finish preparing some cores.
-
                loop = new Retro.MainLoop (core);
                running = false;