[gtk+] gskgl: Deal with being rerealized

[Benjamin Otte <otte src gnome org>]

commit 6b3d979196cf89542e7ba42839e6e7830fb8303b
Author: Benjamin Otte <otte redhat com>
Date:   Wed Nov 1 15:33:02 2017 +0100

    gskgl: Deal with being rerealized

 gsk/gskglrenderer.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gsk/gskglrenderer.c b/gsk/gskglrenderer.c
index 979e72f..b899f2f 100644
--- a/gsk/gskglrenderer.c
+++ b/gsk/gskglrenderer.c
@@ -180,7 +180,6 @@ gsk_gl_renderer_dispose (GObject *gobject)
 {
   GskGLRenderer *self = GSK_GL_RENDERER (gobject);
 
-  g_clear_object (&self->gl_context);
   g_clear_pointer (&self->render_items, g_array_unref);
 
   G_OBJECT_CLASS (gsk_gl_renderer_parent_class)->dispose (gobject);
@@ -412,7 +411,7 @@ gsk_gl_renderer_unrealize (GskRenderer *renderer)
   /* We don't need to iterate to destroy the associated GL resources,
    * as they will be dropped when we finalize the GskGLDriver
    */
-  g_clear_pointer (&self->render_items, g_array_unref);
+  g_array_set_size (self->render_items, 0);
 
   gsk_gl_renderer_destroy_buffers (self);
   gsk_gl_renderer_destroy_programs (self);
@@ -422,6 +421,8 @@ gsk_gl_renderer_unrealize (GskRenderer *renderer)
 
   if (self->gl_context == gdk_gl_context_get_current ())
     gdk_gl_context_clear_current ();
+
+  g_clear_object (&self->gl_context);
 }
 
 static GdkDrawingContext *