ClutterFeatureFlags
_clutter_backend_get_features (ClutterBackend *backend)
{
ClutterBackendClass *klass;
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), 0);
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (klass->get_features)
return klass->get_features (backend);
return 0;
}
ClutterFeatureFlags
_clutter_backend_get_features (ClutterBackend *backend)
{
ClutterBackendClass *klass;
GError *error;
g_assert (CLUTTER_IS_BACKEND (backend));
klass = CLUTTER_BACKEND_GET_CLASS (backend);
/* we need to have a context here; so we create the
* GL context first and the ask for features. if the
* context already exists this should be a no-op
*/
error = NULL;
if (klass->create_context != NULL)
{
gboolean res;
res = klass->create_context (backend, &error);
if (!res)
{
if (error)
{
g_critical ("Unable to create a context: %s", error->message);
g_error_free (error);
}
else
g_critical ("Unable to create a context: unknown error");
return 0;
}
}
if (klass->get_features)
return klass->get_features (backend);
return 0;
}