[Bf-blender-cvs] [a716e696584] master: Cleanup: Use helper function for previous mesh loop

[Hans Goudey]

Commit: a716e696584e90fc8ccb6b2af09fd15190af7f05
Author: Hans Goudey
Date:   Fri Oct 7 22:40:11 2022 -0500
Branches: master
https://developer.blender.org/rBa716e696584e90fc8ccb6b2af09fd15190af7f05

Cleanup: Use helper function for previous mesh loop

===================================================================

M	source/blender/blenkernel/intern/geometry_component_mesh.cc

===================================================================

diff --git a/source/blender/blenkernel/intern/geometry_component_mesh.cc b/source/blender/blenkernel/intern/geometry_component_mesh.cc
index 8fb33198fc1..d148d59a48b 100644
--- a/source/blender/blenkernel/intern/geometry_component_mesh.cc
+++ b/source/blender/blenkernel/intern/geometry_component_mesh.cc
@@ -13,6 +13,7 @@
 #include "BKE_geometry_set.hh"
 #include "BKE_lib_id.h"
 #include "BKE_mesh.h"
+#include "BKE_mesh_mapping.h"
 
 #include "FN_multi_function_builder.hh"
 
@@ -623,7 +624,7 @@ void adapt_mesh_domain_edge_to_corner_impl(const Mesh &mesh,
 
     /* For every corner, mix the values from the adjacent edges on the face. */
     for (const int loop_index : IndexRange(poly.loopstart, poly.totloop)) {
-      const int loop_index_prev = loop_index - 1 + (loop_index == poly.loopstart) * poly.totloop;
+      const int loop_index_prev = mesh_topology::previous_poly_loop(poly, loop_index);
       const MLoop &loop = loops[loop_index];
       const MLoop &loop_prev = loops[loop_index_prev];
       mixer.mix_in(loop_index, old_values[loop.e]);
@@ -650,7 +651,7 @@ void adapt_mesh_domain_edge_to_corner_impl(const Mesh &mesh,
     for (const int poly_index : range) {
       const MPoly &poly = polys[poly_index];
       for (const int loop_index : IndexRange(poly.loopstart, poly.totloop)) {
-        const int loop_index_prev = loop_index - 1 + (loop_index == poly.loopstart) * poly.totloop;
+        const int loop_index_prev = mesh_topology::previous_poly_loop(poly, loop_index);
         const MLoop &loop = loops[loop_index];
         const MLoop &loop_prev = loops[loop_index_prev];
         if (old_values[loop.e] && old_values[loop_prev.e]) {