Tag object-data level boundbox as invalid rather than freeing it

Object update used to free object-data level bounding box to trigger
it's re-calculation in the future. Such a freeing performed from
object update isn't thread-safe because mesh could be shared between
multiple objects.

Rather than freeing bounding box, tag it's as invalid, this is safe
from threading point of view and also prevents unnecessary memory
re-allocation.

Object-level bounding box is still reallocating, but think we could
change this easily in the future as well.

--
svn merge -r58154:58156 -r59258:59259 ^/branches/soc-2013-depsgraph_mt

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_curve.h b/source/blender/blenkernel/BKE_curve.h
index b2daf1ff732..94469381a35 100644
--- a/source/blender/blenkernel/BKE_curve.h
+++ b/source/blender/blenkernel/BKE_curve.h
@@ -70,7 +70,10 @@ void BKE_curve_make_local(struct Curve *cu);
 short BKE_curve_type_get(struct Curve *cu);
 void BKE_curve_type_test(struct Object *ob);
 void BKE_curve_curve_dimension_update(struct Curve *cu);
+
+struct BoundBox *BKE_curve_boundbox_get(struct Object *ob);
 void BKE_curve_texspace_calc(struct Curve *cu);
+void BKE_curve_texspace_get(struct Curve *cu, float r_loc[3], float r_rot[3], float r_size[3]);
 
 bool BKE_curve_minmax(struct Curve *cu, float min[3], float max[3]);
 bool BKE_curve_center_median(struct Curve *cu, float cent[3]);