Constraints: rename and refactor custom space initialization.

Rename and simplify the function for initializing the custom space,
avoiding the need for the calling code to be aware of the internals
of bConstraintOb. This patch should not change any behavior.

This was split off from D9732.

Differential Revision: https://developer.blender.org/D15252

1 files changed, 9 insertions, 1 deletions

diff --git a/source/blender/blenkernel/BKE_constraint.h b/source/blender/blenkernel/BKE_constraint.h
index 737b05fee0c..2be299f5b0c 100644
--- a/source/blender/blenkernel/BKE_constraint.h
+++ b/source/blender/blenkernel/BKE_constraint.h
@@ -334,7 +334,15 @@ void BKE_constraint_targets_for_solving_get(struct Depsgraph *depsgraph,
                                             struct bConstraintOb *ob,
                                             struct ListBase *targets,
                                             float ctime);
-void BKE_constraint_custom_object_space_get(float r_mat[4][4], struct bConstraint *con);
+
+/**
+ * Initializes the custom coordinate space data if required by the constraint.
+ *
+ * \param cob Constraint evaluation context (contains the matrix to be initialized).
+ * \param con Constraint that is about to be evaluated.
+ */
+void BKE_constraint_custom_object_space_init(struct bConstraintOb *cob, struct bConstraint *con);
+
 /**
  * This function is called whenever constraints need to be evaluated. Currently, all
  * constraints that can be evaluated are every time this gets run.