Cleanup: do not cleanup runtime data twice during ID copying...

More or less same code was being executed twice during ID copying.

Makes no sense to add yet another switch-by-ID-type to handle
specificaly runtime data during ID copying, we already have
BKE_xxx_copy_data() functions for that.

source/blender/blenkernel/BKE_mesh_runtime.h

@@ -45,7 +45,7 @@ struct DerivedMesh;
 #endif
 
 void BKE_mesh_runtime_reset(struct Mesh *mesh);
-void BKE_mesh_runtime_reset_on_copy(struct Mesh *mesh);
+void BKE_mesh_runtime_reset_on_copy(struct Mesh *mesh, const int flag);
 int BKE_mesh_runtime_looptri_len(const struct Mesh *mesh);
 void BKE_mesh_runtime_looptri_recalc(struct Mesh *mesh);
 const struct MLoopTri *BKE_mesh_runtime_looptri_ensure(struct Mesh *mesh);

source/blender/blenkernel/BKE_object.h

@@ -306,7 +306,7 @@ int BKE_object_scenes_users_get(struct Main *bmain, struct Object *ob);
 struct MovieClip *BKE_object_movieclip_get(struct Scene *scene, struct Object *ob, bool use_default);
 
 void BKE_object_runtime_reset(struct Object *object);
-void BKE_object_runtime_reset_on_copy(struct Object *object);
+void BKE_object_runtime_reset_on_copy(struct Object *object, const int flag);
 
 void BKE_object_batch_cache_dirty_tag(struct Object *ob);
 

source/blender/blenkernel/intern/library.c

@@ -511,32 +511,6 @@ static int id_copy_libmanagement_cb(void *user_data, ID *UNUSED(id_self), ID **i
 	return IDWALK_RET_NOP;
 }
 
-static void id_copy_clear_runtime_pointers(ID *id, int UNUSED(flag))
-{
-	if (id == NULL) {
-		return;
-	}
-	/* TODO(sergey): We might want to do a deep-copy of all the pointers inside.
-	 * This isn't currently needed, and is quite involved change (to cover all
-	 * things like batch cache and such). */
-	switch ((ID_Type)GS(id->name)) {
-		case ID_OB:
-		{
-			Object *object = (Object *)id;
-			BKE_object_runtime_reset_on_copy(object);
-			break;
-		}
-		case ID_ME:
-		{
-			Mesh *mesh = (Mesh *)id;
-			BKE_mesh_runtime_reset_on_copy(mesh);
-			break;
-		}
-		default:
-			break;
-	}
-}
-
 bool BKE_id_copy_is_allowed(const ID *id)
 {
 #define LIB_ID_TYPES_NOCOPY ID_LI, ID_SCR, ID_WM,  /* Not supported */ \
@@ -703,8 +677,6 @@ bool BKE_id_copy_ex(Main *bmain, const ID *id, ID **r_newid, const int flag)
 		(*r_newid)->lib = id->lib;
 	}
 
-	id_copy_clear_runtime_pointers(*r_newid, flag);
-
 	return true;
 }
 

source/blender/blenkernel/intern/mesh.c

@@ -525,6 +525,14 @@ Mesh *BKE_mesh_add(Main *bmain, const char *name)
  */
 void BKE_mesh_copy_data(Main *bmain, Mesh *me_dst, const Mesh *me_src, const int flag)
 {
+	BKE_mesh_runtime_reset_on_copy(me_dst, flag);
+	if ((me_src->id.tag & LIB_TAG_NO_MAIN) == 0) {
+		/* This is a direct copy of a main mesh, so for now it has the same topology. */
+		me_dst->runtime.deformed_only = true;
+	}
+	/* XXX WHAT? Why? Comment, please! And pretty sure this is not valid for regular Mesh copying? */
+	me_dst->runtime.is_original = false;
+
 	const bool do_tessface = ((me_src->totface != 0) && (me_src->totpoly == 0)); /* only do tessface if we have no polys */
 	CustomDataMask mask = CD_MASK_MESH;
 
@@ -551,21 +559,6 @@ void BKE_mesh_copy_data(Main *bmain, Mesh *me_dst, const Mesh *me_src, const int
 
 	me_dst->edit_btmesh = NULL;
 
-	/* Call BKE_mesh_runtime_reset? */
-	me_dst->runtime.batch_cache = NULL;
-	me_dst->runtime.looptris.array = NULL;
-	me_dst->runtime.bvh_cache = NULL;
-	me_dst->runtime.shrinkwrap_data = NULL;
-
-	if (me_src->id.tag & LIB_TAG_NO_MAIN) {
-		me_dst->runtime.deformed_only = me_src->runtime.deformed_only;
-	}
-	else {
-		/* This is a direct copy of a main mesh, so for now it has the same topology. */
-		me_dst->runtime.deformed_only = 1;
-	}
-	me_dst->runtime.is_original = false;
-
 	me_dst->mselect = MEM_dupallocN(me_dst->mselect);
 	me_dst->bb = MEM_dupallocN(me_dst->bb);
 

source/blender/blenkernel/intern/mesh_runtime.c

@@ -54,9 +54,10 @@ void BKE_mesh_runtime_reset(Mesh *mesh)
 /* Clear all pointers which we don't want to be shared on copying the datablock.
  * However, keep all the flags which defines what the mesh is (for example, that
  * it's deformed only, or that its custom data layers are out of date.) */
-void BKE_mesh_runtime_reset_on_copy(Mesh *mesh)
+void BKE_mesh_runtime_reset_on_copy(Mesh *mesh, const int UNUSED(flag))
 {
 	Mesh_Runtime *runtime = &mesh->runtime;
+
 	runtime->edit_data = NULL;
 	runtime->batch_cache = NULL;
 	runtime->subdiv_ccg = NULL;

source/blender/blenkernel/intern/object.c

@@ -1323,7 +1323,7 @@ void BKE_object_copy_data(Main *bmain, Object *ob_dst, const Object *ob_src, con
 	ShaderFxData *fx;
 
 	/* Do not copy runtime data. */
-	BKE_object_runtime_reset(ob_dst);
+	BKE_object_runtime_reset_on_copy(ob_dst, flag);
 
 	/* We never handle usercount here for own data. */
 	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
@@ -3555,7 +3555,7 @@ void BKE_object_runtime_reset(Object *object)
 }
 
 /* Reset all pointers which we don't want to be shared when copying the object. */
-void BKE_object_runtime_reset_on_copy(Object *object)
+void BKE_object_runtime_reset_on_copy(Object *object, const int UNUSED(flag))
 {
 	Object_Runtime *runtime = &object->runtime;
 	runtime->mesh_eval = NULL;