From 32b7056acd0a31e1d94fc3ed243d249baac04e92 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Tue, 7 Jan 2020 15:39:08 +1100
Subject: BMesh: remove BMEditMesh.ob use for ED_mesh_mirror_* API

---
 source/blender/editors/mesh/editmesh_utils.c |  3 +--
 source/blender/editors/mesh/mesh_mirror.c    | 32 +++++++++++++---------------
 source/blender/editors/mesh/meshtools.c      | 21 ++++++++++++++++--
 3 files changed, 35 insertions(+), 21 deletions(-)

(limited to 'source/blender/editors/mesh')

diff --git a/source/blender/editors/mesh/editmesh_utils.c b/source/blender/editors/mesh/editmesh_utils.c
index 67f8db71e54..2cfb66b57f5 100644
--- a/source/blender/editors/mesh/editmesh_utils.c
+++ b/source/blender/editors/mesh/editmesh_utils.c
@@ -1061,7 +1061,6 @@ void EDBM_verts_mirror_cache_begin_ex(BMEditMesh *em,
                                       float maxdist,
                                       int *r_index)
 {
-  Mesh *me = (Mesh *)em->ob->data;
   BMesh *bm = em->bm;
   BMIter iter;
   BMVert *v;
@@ -1094,7 +1093,7 @@ void EDBM_verts_mirror_cache_begin_ex(BMEditMesh *em,
   BM_mesh_elem_index_ensure(bm, BM_VERT);
 
   if (use_topology) {
-    ED_mesh_mirrtopo_init(me, NULL, &mesh_topo_store, true);
+    ED_mesh_mirrtopo_init(em, NULL, &mesh_topo_store, true);
   }
   else {
     tree = BLI_kdtree_3d_new(bm->totvert);
diff --git a/source/blender/editors/mesh/mesh_mirror.c b/source/blender/editors/mesh/mesh_mirror.c
index e086eda9b33..628c8273bc5 100644
--- a/source/blender/editors/mesh/mesh_mirror.c
+++ b/source/blender/editors/mesh/mesh_mirror.c
@@ -148,19 +148,15 @@ static int mirrtopo_vert_sort(const void *v1, const void *v2)
   return 0;
 }
 
-bool ED_mesh_mirrtopo_recalc_check(Mesh *me, Mesh *me_eval, MirrTopoStore_t *mesh_topo_store)
+bool ED_mesh_mirrtopo_recalc_check(BMEditMesh *em, Mesh *me, MirrTopoStore_t *mesh_topo_store)
 {
-  const bool is_editmode = (me->edit_mesh != NULL);
+  const bool is_editmode = em != NULL;
   int totvert;
   int totedge;
 
-  if (me_eval) {
-    totvert = me_eval->totvert;
-    totedge = me_eval->totedge;
-  }
-  else if (me->edit_mesh) {
-    totvert = me->edit_mesh->bm->totvert;
-    totedge = me->edit_mesh->bm->totedge;
+  if (em) {
+    totvert = em->bm->totvert;
+    totedge = em->bm->totedge;
   }
   else {
     totvert = me->totvert;
@@ -177,14 +173,16 @@ bool ED_mesh_mirrtopo_recalc_check(Mesh *me, Mesh *me_eval, MirrTopoStore_t *mes
   }
 }
 
-void ED_mesh_mirrtopo_init(Mesh *me,
-                           Mesh *me_eval,
+void ED_mesh_mirrtopo_init(BMEditMesh *em,
+                           Mesh *me,
                            MirrTopoStore_t *mesh_topo_store,
                            const bool skip_em_vert_array_init)
 {
-  const bool is_editmode = (me->edit_mesh != NULL);
+  if (em) {
+    BLI_assert(me == NULL);
+  }
+  const bool is_editmode = (em != NULL);
   MEdge *medge = NULL, *med;
-  BMEditMesh *em = me_eval ? NULL : me->edit_mesh;
 
   /* editmode*/
   BMEdge *eed;
@@ -213,14 +211,14 @@ void ED_mesh_mirrtopo_init(Mesh *me,
     totvert = em->bm->totvert;
   }
   else {
-    totvert = me_eval ? me_eval->totvert : me->totvert;
+    totvert = me->totvert;
   }
 
   topo_hash = MEM_callocN(totvert * sizeof(MirrTopoHash_t), "TopoMirr");
 
   /* Initialize the vert-edge-user counts used to detect unique topology */
   if (em) {
-    totedge = me->edit_mesh->bm->totedge;
+    totedge = em->bm->totedge;
 
     BM_ITER_MESH (eed, &iter, em->bm, BM_EDGES_OF_MESH) {
       const int i1 = BM_elem_index_get(eed->v1), i2 = BM_elem_index_get(eed->v2);
@@ -229,8 +227,8 @@ void ED_mesh_mirrtopo_init(Mesh *me,
     }
   }
   else {
-    totedge = me_eval ? me_eval->totedge : me->totedge;
-    medge = me_eval ? me_eval->medge : me->medge;
+    totedge = me->totedge;
+    medge = me->medge;
 
     for (a = 0, med = medge; a < totedge; a++, med++) {
       const unsigned int i1 = med->v1, i2 = med->v2;
diff --git a/source/blender/editors/mesh/meshtools.c b/source/blender/editors/mesh/meshtools.c
index 772e7446430..380d9100ed4 100644
--- a/source/blender/editors/mesh/meshtools.c
+++ b/source/blender/editors/mesh/meshtools.c
@@ -801,13 +801,30 @@ static MirrTopoStore_t mesh_topo_store = {NULL, -1. - 1, -1};
  */
 int ED_mesh_mirror_topo_table(Object *ob, Mesh *me_eval, char mode)
 {
+
+  Mesh *me_mirror = NULL;
+  BMEditMesh *em_mirror = NULL;
+
+  if (mode != 'e') {
+    Mesh *me = ob->data;
+    if (me_eval != NULL) {
+      me_mirror = me_eval;
+    }
+    else if (me->edit_mesh != NULL) {
+      em_mirror = me->edit_mesh;
+    }
+    else {
+      me_mirror = me;
+    }
+  }
+
   if (mode == 'u') { /* use table */
-    if (ED_mesh_mirrtopo_recalc_check(ob->data, me_eval, &mesh_topo_store)) {
+    if (ED_mesh_mirrtopo_recalc_check(em_mirror, me_mirror, &mesh_topo_store)) {
       ED_mesh_mirror_topo_table(ob, me_eval, 's');
     }
   }
   else if (mode == 's') { /* start table */
-    ED_mesh_mirrtopo_init(ob->data, me_eval, &mesh_topo_store, false);
+    ED_mesh_mirrtopo_init(em_mirror, me_mirror, &mesh_topo_store, false);
   }
   else if (mode == 'e') { /* end table */
     ED_mesh_mirrtopo_free(&mesh_topo_store);
-- 
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