access mesh string data layer as bytes since this is low level data storage

2 files changed, 12 insertions, 3 deletions

diff --git a/source/blender/makesrna/intern/makesrna.c b/source/blender/makesrna/intern/makesrna.c
index a3054b88960..a464948c3ac 100644
--- a/source/blender/makesrna/intern/makesrna.c
+++ b/source/blender/makesrna/intern/makesrna.c
@@ -524,7 +524,11 @@ static char *rna_def_property_get_func(FILE *f, StructRNA *srna, PropertyRNA *pr
 			}
 			else {
 				const PropertySubType subtype= prop->subtype;
-				const char *string_copy_func= (subtype==PROP_FILEPATH || subtype==PROP_DIRPATH || subtype==PROP_FILENAME) ? "BLI_strncpy" : "BLI_strncpy_utf8";
+				const char *string_copy_func= (subtype==PROP_FILEPATH ||
+				                               subtype==PROP_DIRPATH  ||
+				                               subtype==PROP_FILENAME ||
+				                               subtype==PROP_BYTESTRING) ?
+				            "BLI_strncpy" : "BLI_strncpy_utf8";
 
 				rna_print_data_get(f, dp);
 				if(sprop->maxlength)
@@ -739,7 +743,11 @@ static char *rna_def_property_set_func(FILE *f, StructRNA *srna, PropertyRNA *pr
 			}
 			else {
 				const PropertySubType subtype= prop->subtype;
-				const char *string_copy_func= (subtype==PROP_FILEPATH || subtype==PROP_DIRPATH || subtype==PROP_FILENAME) ? "BLI_strncpy" : "BLI_strncpy_utf8";
+				const char *string_copy_func= (subtype==PROP_FILEPATH ||
+				                               subtype==PROP_DIRPATH  ||
+				                               subtype==PROP_FILENAME ||
+				                               subtype==PROP_BYTESTRING) ?
+				            "BLI_strncpy" : "BLI_strncpy_utf8";
 
 				rna_print_data_get(f, dp);
 				if(sprop->maxlength)
diff --git a/source/blender/makesrna/intern/rna_mesh.c b/source/blender/makesrna/intern/rna_mesh.c
index 63a7df09792..421c201b3f8 100644
--- a/source/blender/makesrna/intern/rna_mesh.c
+++ b/source/blender/makesrna/intern/rna_mesh.c
@@ -1675,7 +1675,8 @@ static void rna_def_mproperties(BlenderRNA *brna)
 	RNA_def_struct_ui_text(srna, "Mesh String Property", "User defined string text value in a string properties layer");
 	RNA_def_struct_path_func(srna, "rna_MeshStringProperty_path");
 
-	prop= RNA_def_property(srna, "value", PROP_STRING, PROP_NONE);
+	/* low level mesh data access, treat as bytes */
+	prop= RNA_def_property(srna, "value", PROP_STRING, PROP_BYTESTRING);
 	RNA_def_property_string_sdna(prop, NULL, "s");
 	RNA_def_property_ui_text(prop, "Value", "");
 	RNA_def_property_update(prop, 0, "rna_Mesh_update_data");