Cleanup: Use const when retrieving custom data layers

Knowing when layers are retrieved for write access will be essential
when adding proper copy-on-write support. This commit makes that
clearer by adding `const` where the retrieved data is not modified.

Ref T95842

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edituv_stretch_angle.cc b/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edituv_stretch_angle.cc
index 4ced14ab11a..14f61dcd739 100644
--- a/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edituv_stretch_angle.cc
+++ b/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edituv_stretch_angle.cc
@@ -26,7 +26,7 @@ struct UVStretchAngle {
 
 struct MeshExtract_StretchAngle_Data {
   UVStretchAngle *vbo_data;
-  MLoopUV *luv;
+  const MLoopUV *luv;
   float auv[2][2], last_auv[2];
   float av[2][3], last_av[3];
   int cd_ofs;
@@ -98,7 +98,7 @@ static void extract_edituv_stretch_angle_init(const MeshRenderData *mr,
   }
   else {
     BLI_assert(ELEM(mr->extract_type, MR_EXTRACT_MAPPED, MR_EXTRACT_MESH));
-    data->luv = (MLoopUV *)CustomData_get_layer(&mr->me->ldata, CD_MLOOPUV);
+    data->luv = (const MLoopUV *)CustomData_get_layer(&mr->me->ldata, CD_MLOOPUV);
   }
 }