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Assert if we call backend API without a valid backend

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This is a backend programming error, and we should not tolerate
failures in these cases.
This commit is contained in:
Emmanuele Bassi 2011-02-18 17:18:05 +00:00
parent 7e42da123f
commit 7500b77b2b
1 changed files with 11 additions and 33 deletions
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44
clutter/clutter-backend.c
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@ -181,11 +181,10 @@ clutter_backend_real_resolution_changed (ClutterBackend *backend)
ClutterSettings *settings;
gint dpi;
context = _clutter_context_get_default ();
settings = clutter_settings_get_default ();
g_object_get (settings, "font-dpi", &dpi, NULL);
context = _clutter_context_get_default ();
if (context->font_map != NULL)
cogl_pango_font_map_set_resolution (context->font_map, dpi / 1024.0);
@ -311,7 +310,7 @@ _clutter_backend_add_options (ClutterBackend *backend,
{
ClutterBackendClass *klass;
g_return_if_fail (CLUTTER_IS_BACKEND (backend));
g_assert (CLUTTER_IS_BACKEND (backend));
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (klass->add_options)
@ -324,7 +323,7 @@ _clutter_backend_pre_parse (ClutterBackend *backend,
{
ClutterBackendClass *klass;
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), FALSE);
g_assert (CLUTTER_IS_BACKEND (backend));
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (klass->pre_parse)
@ -339,7 +338,7 @@ _clutter_backend_post_parse (ClutterBackend *backend,
{
ClutterBackendClass *klass;
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), FALSE);
g_assert (CLUTTER_IS_BACKEND (backend));
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (klass->post_parse)
@ -357,8 +356,8 @@ _clutter_backend_create_stage (ClutterBackend *backend,
ClutterStageManager *stage_manager;
ClutterStageWindow *stage_window;
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), NULL);
g_return_val_if_fail (CLUTTER_IS_STAGE (wrapper), NULL);
g_assert (CLUTTER_IS_BACKEND (backend));
g_assert (CLUTTER_IS_STAGE (wrapper));
stage_manager = clutter_stage_manager_get_default ();
@ -406,8 +405,6 @@ _clutter_backend_create_context (ClutterBackend *backend,
{
ClutterBackendClass *klass;
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), FALSE);
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (klass->create_context)
return klass->create_context (backend, error);
@ -430,8 +427,8 @@ _clutter_backend_ensure_context (ClutterBackend *backend,
{
static ClutterStage *current_context_stage = NULL;
g_return_if_fail (CLUTTER_IS_BACKEND (backend));
g_return_if_fail (CLUTTER_IS_STAGE (stage));
g_assert (CLUTTER_IS_BACKEND (backend));
g_assert (CLUTTER_IS_STAGE (stage));
if (current_context_stage != stage || !CLUTTER_ACTOR_IS_REALIZED (stage))
{
@ -500,7 +497,7 @@ _clutter_backend_get_features (ClutterBackend *backend)
ClutterBackendClass *klass;
GError *error;
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), 0);
g_assert (CLUTTER_IS_BACKEND (backend));
klass = CLUTTER_BACKEND_GET_CLASS (backend);
@ -509,7 +506,7 @@ _clutter_backend_get_features (ClutterBackend *backend)
* context already exists this should be a no-op
*/
error = NULL;
if (klass->create_context)
if (klass->create_context != NULL)
{
gboolean res;
@ -538,12 +535,8 @@ void
_clutter_backend_init_events (ClutterBackend *backend)
{
ClutterBackendClass *klass;
ClutterMainContext *clutter_context;
clutter_context = _clutter_context_get_default ();
g_return_if_fail (CLUTTER_IS_BACKEND (backend));
g_return_if_fail (clutter_context != NULL);
g_assert (CLUTTER_IS_BACKEND (backend));
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (klass->init_events)
@ -556,8 +549,6 @@ _clutter_backend_get_units_per_em (ClutterBackend *backend,
{
ClutterBackendPrivate *priv;
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), 0);
priv = backend->priv;
/* recompute for the font description, but do not cache the result */
@ -577,10 +568,6 @@ _clutter_backend_copy_event_data (ClutterBackend *backend,
{
ClutterBackendClass *klass;
g_return_if_fail (CLUTTER_IS_BACKEND (backend));
g_return_if_fail (src != NULL);
g_return_if_fail (dest != NULL);
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (klass->copy_event_data != NULL)
klass->copy_event_data (backend, src, dest);
@ -592,9 +579,6 @@ _clutter_backend_free_event_data (ClutterBackend *backend,
{
ClutterBackendClass *klass;
g_return_if_fail (CLUTTER_IS_BACKEND (backend));
g_return_if_fail (event != NULL);
klass = CLUTTER_BACKEND_GET_CLASS (backend);
if (klass->free_event_data != NULL)
klass->free_event_data (backend, event);
@ -622,8 +606,6 @@ clutter_get_default_backend (void)
return clutter_context->backend;
}
/* FIXME: below should probably be moved into clutter_main */
/**
* clutter_backend_set_double_click_time:
* @backend: a #ClutterBackend
@ -921,8 +903,6 @@ clutter_backend_get_font_name (ClutterBackend *backend)
gint32
_clutter_backend_get_units_serial (ClutterBackend *backend)
{
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), 0);
return backend->priv->units_serial;
}
@ -931,8 +911,6 @@ _clutter_backend_translate_event (ClutterBackend *backend,
gpointer native,
ClutterEvent *event)
{
g_return_val_if_fail (CLUTTER_IS_BACKEND (backend), FALSE);
return CLUTTER_BACKEND_GET_CLASS (backend)->translate_event (backend,
native,
event);