1 files changed, 65 insertions, 0 deletions
diff --git a/source/blender/blenkernel/BKE_curves_utils.hh b/source/blender/blenkernel/BKE_curves_utils.hh
index 62b060093e9..0fbd33002e1 100644
--- a/source/blender/blenkernel/BKE_curves_utils.hh
+++ b/source/blender/blenkernel/BKE_curves_utils.hh
@@ -9,9 +9,60 @@
  * \brief Low-level operations for curves.
  */
 
+#include "BLI_function_ref.hh"
+#include "BLI_generic_pointer.hh"
+
 namespace blender::bke::curves {
 
 /**
+ * Copy the provided point attribute values between all curves in the #curve_ranges index
+ * ranges, assuming that all curves have the same number of control points in #src_curves
+ * and #dst_curves.
+ */
+void copy_point_data(const CurvesGeometry &src_curves,
+                     const CurvesGeometry &dst_curves,
+                     Span<IndexRange> curve_ranges,
+                     GSpan src,
+                     GMutableSpan dst);
+
+void copy_point_data(const CurvesGeometry &src_curves,
+                     const CurvesGeometry &dst_curves,
+                     IndexMask src_curve_selection,
+                     GSpan src,
+                     GMutableSpan dst);
+
+template<typename T>
+void copy_point_data(const CurvesGeometry &src_curves,
+                     const CurvesGeometry &dst_curves,
+                     const IndexMask src_curve_selection,
+                     const Span<T> src,
+                     MutableSpan<T> dst)
+{
+  copy_point_data(src_curves, dst_curves, src_curve_selection, GSpan(src), GMutableSpan(dst));
+}
+
+void fill_points(const CurvesGeometry &curves,
+                 IndexMask curve_selection,
+                 GPointer value,
+                 GMutableSpan dst);
+
+template<typename T>
+void fill_points(const CurvesGeometry &curves,
+                 const IndexMask curve_selection,
+                 const T &value,
+                 MutableSpan<T> dst)
+{
+  fill_points(curves, curve_selection, &value, dst);
+}
+
+/**
+ * Copy only the information on the point domain, but not the offsets or any point attributes,
+ * meant for operations that change the number of points but not the number of curves.
+ * \warning The returned curves have invalid offsets!
+ */
+bke::CurvesGeometry copy_only_curve_domain(const bke::CurvesGeometry &src_curves);
+
+/**
  * Copy the size of every curve in #curve_ranges to the corresponding index in #counts.
  */
 void fill_curve_counts(const bke::CurvesGeometry &curves,
@@ -23,4 +74,18 @@ void fill_curve_counts(const bke::CurvesGeometry &curves,
  */
 void accumulate_counts_to_offsets(MutableSpan<int> counts_to_offsets, int start_offset = 0);
 
+IndexMask indices_for_type(const VArray<int8_t> &types,
+                           const std::array<int, CURVE_TYPES_NUM> &type_counts,
+                           const CurveType type,
+                           const IndexMask selection,
+                           Vector<int64_t> &r_indices);
+
+void foreach_curve_by_type(const VArray<int8_t> &types,
+                           const std::array<int, CURVE_TYPES_NUM> &type_counts,
+                           IndexMask selection,
+                           FunctionRef<void(IndexMask)> catmull_rom_fn,
+                           FunctionRef<void(IndexMask)> poly_fn,
+                           FunctionRef<void(IndexMask)> bezier_fn,
+                           FunctionRef<void(IndexMask)> nurbs_fn);
+
 }  // namespace blender::bke::curves