actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (effect));
opacity = clutter_actor_get_paint_opacity (actor);
- if (!_clutter_offscreen_effect_get_target_size (effect, &width, &height))
+ /* if we don't have a target size, fall back to the actor's
+ * allocation, though wrong it might be
+ */
+ if (!clutter_offscreen_effect_get_target_size (effect, &width, &height))
clutter_actor_get_size (actor, &width, &height);
for (i = 0; i < priv->y_tiles + 1; i++)
G_BEGIN_DECLS
-gboolean _clutter_offscreen_effect_get_target_size (ClutterOffscreenEffect *effect,
- gfloat *width,
- gfloat *height);
-
G_END_DECLS
#endif /* __CLUTTER_OFFSCREEN_EFFECT_PRIVATE_H__ */
height);
}
+/**
+ * clutter_offscreen_effect_get_target_size:
+ * @effect: a #ClutterOffscreenEffect
+ * @width: (out): return location for the target width, or %NULL
+ * @height: (out): return location for the target height, or %NULL
+ *
+ * Retrieves the size of the offscreen buffer used by @effect to
+ * paint the actor to which it has been applied.
+ *
+ * This function should only be called by #ClutterOffscreenEffect
+ * implementations, from within the <function>paint_target()</function>
+ * virtual function.
+ *
+ * Return value: %TRUE if the offscreen buffer has a valid size,
+ * and %FALSE otherwise
+ *
+ * Since: 1.8
+ */
gboolean
-_clutter_offscreen_effect_get_target_size (ClutterOffscreenEffect *effect,
- gfloat *width,
- gfloat *height)
+clutter_offscreen_effect_get_target_size (ClutterOffscreenEffect *effect,
+ gfloat *width,
+ gfloat *height)
{
- ClutterOffscreenEffectPrivate *priv = effect->priv;
+ ClutterOffscreenEffectPrivate *priv;
+
+ g_return_val_if_fail (CLUTTER_IS_OFFSCREEN_EFFECT (effect), FALSE);
+
+ priv = effect->priv;
if (priv->target == NULL)
return FALSE;
GType clutter_offscreen_effect_get_type (void) G_GNUC_CONST;
-CoglMaterial *clutter_offscreen_effect_get_target (ClutterOffscreenEffect *effect);
-
-void clutter_offscreen_effect_paint_target (ClutterOffscreenEffect *effect);
-CoglHandle clutter_offscreen_effect_create_texture (ClutterOffscreenEffect *effect,
- gfloat width,
- gfloat height);
+CoglMaterial * clutter_offscreen_effect_get_target (ClutterOffscreenEffect *effect);
+
+void clutter_offscreen_effect_paint_target (ClutterOffscreenEffect *effect);
+CoglHandle clutter_offscreen_effect_create_texture (ClutterOffscreenEffect *effect,
+ gfloat width,
+ gfloat height);
+gboolean clutter_offscreen_effect_get_target_size (ClutterOffscreenEffect *effect,
+ gfloat *width,
+ gfloat *height);
G_END_DECLS
clutter_offscreen_effect_get_target
clutter_offscreen_effect_create_texture
clutter_offscreen_effect_paint_target
+clutter_offscreen_effect_get_target_size
<SUBSECTION Standard>
CLUTTER_TYPE_OFFSCREEN_EFFECT
CLUTTER_OFFSCREEN_EFFECT