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Implement multi-backend support

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The Clutter backend split is opaque enough that should allow us to just
build all possible backends inside the same shared object, and select
the wanted backend at initialization time.

This requires some work in the build system, as well as the
initialization code, to remove duplicate functions that might cause
conflicts at build and link time. We also need to defer all the checks
of the internal state of the platform-specific API to run-time type
checks.
This commit is contained in:
Emmanuele Bassi
2011-09-21 18:05:03 +01:00
parent 9c102b7c51
commit a09bbffd92
25 changed files with 591 additions and 411 deletions
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16
clutter/gdk/clutter-backend-gdk.c
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@ -410,9 +410,15 @@ clutter_gdk_get_default_display (void)
{
ClutterBackend *backend = clutter_get_default_backend ();
if (!backend || !CLUTTER_IS_BACKEND_GDK (backend))
if (backend == NULL)
{
g_critical ("GDK backend has not been initialised");
g_critical ("The Clutter backend has not been initialised");
return NULL;
}
if (!CLUTTER_IS_BACKEND_GDK (backend))
{
g_critical ("The Clutter backend is not a GDK backend");
return NULL;
}
@ -446,9 +452,3 @@ clutter_gdk_set_display (GdkDisplay *display)
_foreign_dpy = g_object_ref (display);
}
GType
_clutter_backend_impl_get_type (void)
{
return _clutter_backend_gdk_get_type ();
}