Made modifiers_getVirtualModifierList safe for threading

Move static variables to context filling in by this fcuntion
and owned by a callee function. This ensures no conflicts
between threads happens because of static variables used in
this function.

Also moved modifier types and virtual modifiers data to a
function called from creator. This is needed to be sure all
the information is properly initialied to the time when
threads starts to use this data.

--
svn merge -r57899:57900 ^/branches/soc-2013-depsgraph_mt

1 files changed, 12 insertions, 1 deletions

diff --git a/source/blender/blenkernel/BKE_modifier.h b/source/blender/blenkernel/BKE_modifier.h
index 0727e11f397..8f0d612d473 100644
--- a/source/blender/blenkernel/BKE_modifier.h
+++ b/source/blender/blenkernel/BKE_modifier.h
@@ -304,6 +304,9 @@ typedef struct ModifierTypeInfo {
 	                       TexWalkFunc walk, void *userData);
 } ModifierTypeInfo;
 
+/* Initialize modifier's global data (type info and some common global storages). */
+void BKE_modifier_init(void);
+
 ModifierTypeInfo *modifierType_getInfo(ModifierType type);
 
 /* Modifier utility calls, do call through type pointer and return
@@ -377,7 +380,15 @@ struct CDMaskLink *modifiers_calcDataMasks(struct Scene *scene,
 struct ModifierData *modifiers_getLastPreview(struct Scene *scene,
                                               struct ModifierData *md,
                                               int required_mode);
-struct ModifierData  *modifiers_getVirtualModifierList(struct Object *ob);
+
+typedef struct VirtualModifierData {
+	ArmatureModifierData amd;
+	CurveModifierData cmd;
+	LatticeModifierData lmd;
+	ShapeKeyModifierData smd;
+} VirtualModifierData;
+
+struct ModifierData  *modifiers_getVirtualModifierList(struct Object *ob, struct VirtualModifierData *data);
 
 /* ensure modifier correctness when changing ob->data */
 void test_object_modifiers(struct Object *ob);