[Bf-blender-cvs] [7c77d769dd3] geometry-nodes-curve-support: Geometry Nodes Curves: Add "owns direct data" functions

[Hans Goudey]

Commit: 7c77d769dd38b74a446fe3c6072c105daa3c42b5
Author: Hans Goudey
Date:   Thu Apr 8 16:00:14 2021 -0500
Branches: geometry-nodes-curve-support
https://developer.blender.org/rB7c77d769dd38b74a446fe3c6072c105daa3c42b5

Geometry Nodes Curves: Add "owns direct data" functions

===================================================================

M	source/blender/blenkernel/BKE_geometry_set.hh
M	source/blender/blenkernel/intern/geometry_component_curve.cc

===================================================================

diff --git a/source/blender/blenkernel/BKE_geometry_set.hh b/source/blender/blenkernel/BKE_geometry_set.hh
index ce56e291d2d..1f59b7699af 100644
--- a/source/blender/blenkernel/BKE_geometry_set.hh
+++ b/source/blender/blenkernel/BKE_geometry_set.hh
@@ -457,6 +457,9 @@ class CurveComponent : public GeometryComponent {
 
   bool is_empty() const final;
 
+  bool owns_direct_data() const override;
+  void ensure_owns_direct_data() override;
+
   static constexpr inline GeometryComponentType static_type = GEO_COMPONENT_TYPE_CURVE;
 
  private:
diff --git a/source/blender/blenkernel/intern/geometry_component_curve.cc b/source/blender/blenkernel/intern/geometry_component_curve.cc
index 6d567e68e00..ab0a31e6795 100644
--- a/source/blender/blenkernel/intern/geometry_component_curve.cc
+++ b/source/blender/blenkernel/intern/geometry_component_curve.cc
@@ -97,6 +97,20 @@ bool CurveComponent::is_empty() const
   return curve_ == nullptr;
 }
 
+bool CurveComponent::owns_direct_data() const
+{
+  return ownership_ == GeometryOwnershipType::Owned;
+}
+
+void CurveComponent::ensure_owns_direct_data()
+{
+  BLI_assert(this->is_mutable());
+  if (ownership_ != GeometryOwnershipType::Owned) {
+    // curve_ = BKE_curve_copy_for_eval(curve_, false);
+    ownership_ = GeometryOwnershipType::Owned;
+  }
+}
+
 /** \} */
 
 /* -------------------------------------------------------------------- */