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, 4 insertions, 4 deletions

diff --git a/source/blender/freestyle/intern/blender_interface/BlenderFileLoader.cpp b/source/blender/freestyle/intern/blender_interface/BlenderFileLoader.cpp
index 9304e6aa3fb..e76e74b89e4 100644
--- a/source/blender/freestyle/intern/blender_interface/BlenderFileLoader.cpp
+++ b/source/blender/freestyle/intern/blender_interface/BlenderFileLoader.cpp
@@ -370,7 +370,7 @@ int BlenderFileLoader::testDegenerateTriangle(float v1[3], float v2[3], float v3
   return 0;
 }
 
-static bool testEdgeMark(Mesh *me, FreestyleEdge *fed, const MLoopTri *lt, int i)
+static bool testEdgeMark(Mesh *me, const FreestyleEdge *fed, const MLoopTri *lt, int i)
 {
   MLoop *mloop = &me->mloop[lt->tri[i]];
   MLoop *mloop_next = &me->mloop[lt->tri[(i + 1) % 3]];
@@ -395,7 +395,7 @@ void BlenderFileLoader::insertShapeNode(Object *ob, Mesh *me, int id)
 
   // Compute loop normals
   BKE_mesh_calc_normals_split(me);
-  float(*lnors)[3] = nullptr;
+  const float(*lnors)[3] = nullptr;
 
   if (CustomData_has_layer(&me->ldata, CD_NORMAL)) {
     lnors = (float(*)[3])CustomData_get_layer(&me->ldata, CD_NORMAL);
@@ -405,8 +405,8 @@ void BlenderFileLoader::insertShapeNode(Object *ob, Mesh *me, int id)
   MVert *mvert = me->mvert;
   MLoop *mloop = me->mloop;
   MPoly *mpoly = me->mpoly;
-  FreestyleEdge *fed = (FreestyleEdge *)CustomData_get_layer(&me->edata, CD_FREESTYLE_EDGE);
-  FreestyleFace *ffa = (FreestyleFace *)CustomData_get_layer(&me->pdata, CD_FREESTYLE_FACE);
+  const FreestyleEdge *fed = (FreestyleEdge *)CustomData_get_layer(&me->edata, CD_FREESTYLE_EDGE);
+  const FreestyleFace *ffa = (FreestyleFace *)CustomData_get_layer(&me->pdata, CD_FREESTYLE_FACE);
 
   // Compute view matrix
   Object *ob_camera_eval = DEG_get_evaluated_object(_depsgraph, RE_GetCamera(_re));