Make lattice deform safe for threading

Lattice deformation used to store some runtime data
inside of lattice datablock itself. It's something
which is REALLY bad. Ideally DNA shouldn't contain
and runtime data.

For now solved it in a way that initialization of
lattice deform will create a structure which contains
lattice object for which deformation is calculating
and that runtime data which used to be stored in
lattice datablock itself.

It works really fine for mesh deform modifier, but
there's still runtime data stored in particle system
DNA, It didn't look something easy to be solved, so
leaving this as-is for now.

--
svn merge -r58277:58278 -r58795:58796 ^/branches/soc-2013-depsgraph_mt

1 files changed, 4 insertions, 4 deletions

diff --git a/source/blender/editors/space_view3d/drawobject.c b/source/blender/editors/space_view3d/drawobject.c
index fcea6929531..e02e285ee58 100644
--- a/source/blender/editors/space_view3d/drawobject.c
+++ b/source/blender/editors/space_view3d/drawobject.c
@@ -4569,7 +4569,7 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 		pdd->ma_col = ma_col;
 	}
 
-	psys->lattice = psys_get_lattice(&sim);
+	psys->lattice_deform_data = psys_create_lattice_deform_data(&sim);
 
 	/* circles don't use drawdata, so have to add a special case here */
 	if ((pdd || draw_as == PART_DRAW_CIRC) && draw_as != PART_DRAW_PATH) {
@@ -4895,9 +4895,9 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 		pdd->flag &= ~PARTICLE_DRAW_DATA_UPDATED;
 	}
 
-	if (psys->lattice) {
-		end_latt_deform(psys->lattice);
-		psys->lattice = NULL;
+	if (psys->lattice_deform_data) {
+		end_latt_deform(psys->lattice_deform_data);
+		psys->lattice_deform_data = NULL;
 	}
 
 	if (pdd) {