CustomData: Allow copying content of a single layer

1 files changed, 21 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/customdata.c b/source/blender/blenkernel/intern/customdata.c
index 33a96cbe42f..8defb1307ce 100644
--- a/source/blender/blenkernel/intern/customdata.c
+++ b/source/blender/blenkernel/intern/customdata.c
@@ -2239,6 +2239,27 @@ void CustomData_copy_data(const CustomData *source, CustomData *dest,
 	}
 }
 
+void CustomData_copy_layer_type_data(const CustomData *source,
+                                     CustomData *destination,
+                                     int type,
+                                     int source_index, int destination_index,
+                                     int count)
+{
+	const int source_layer_index = CustomData_get_layer_index(source, type);
+	if (source_layer_index == -1) {
+		return;
+	}
+	const int destinaiton_layer_index =
+	        CustomData_get_layer_index(destination, type);
+	if (destinaiton_layer_index == -1) {
+		return;
+	}
+	CustomData_copy_data_layer(source, destination,
+	                           source_layer_index, destinaiton_layer_index,
+	                           source_index, destination_index,
+	                           count);
+}
+
 void CustomData_free_elem(CustomData *data, int index, int count)
 {
 	int i;