move bmesh array lookup data and utility functions from editmesh into bmesh,

since enough bmesh operations can also take advantage of direct index lookups on verts/edges/faces.

developers note:
- EDBM_index_arrays_init/ensure/free -> BM_mesh_elem_table_ensure/init/free
- EDBM_vert/edge/face_at_index -> BM_vert/edge/face_at_index
- EDBM_uv_element_map_create/free -> BM_uv_element_map_create/free
- ED_uv_element_get -> BM_uv_element_get

1 files changed, 16 insertions, 5 deletions

diff --git a/source/blender/blenkernel/intern/editderivedmesh.c b/source/blender/blenkernel/intern/editderivedmesh.c
index 6dd0efc9ab4..453d96a11af 100644
--- a/source/blender/blenkernel/intern/editderivedmesh.c
+++ b/source/blender/blenkernel/intern/editderivedmesh.c
@@ -1233,7 +1233,8 @@ static void emDM_getVert(DerivedMesh *dm, int index, MVert *r_vert)
 		return;
 	}
 
-	ev = bmdm->em->vert_index[index];  /* should be EDBM_vert_at_index() */
+	BLI_assert((bm->elem_table_dirty & BM_VERT) == 0);
+	ev = bm->vtable[index];  /* should be BM_vert_at_index() */
 	// ev = BM_vert_at_index(bm, index); /* warning, does list loop, _not_ ideal */
 
 	bmvert_to_mvert(bm, ev, r_vert);
@@ -1255,7 +1256,10 @@ static void emDM_getVertCo(DerivedMesh *dm, int index, float r_co[3])
 		copy_v3_v3(r_co, bmdm->vertexCos[index]);
 	}
 	else {
-		BMVert *ev = bmdm->em->vert_index[index];  /* should be EDBM_vert_at_index() */
+		BMVert *ev;
+
+		BLI_assert((bm->elem_table_dirty & BM_VERT) == 0);
+		ev = bm->vtable[index];  /* should be BM_vert_at_index() */
 		// ev = BM_vert_at_index(bm, index); /* warning, does list loop, _not_ ideal */
 		copy_v3_v3(r_co, ev->co);
 	}
@@ -1277,7 +1281,10 @@ static void emDM_getVertNo(DerivedMesh *dm, int index, float r_no[3])
 		copy_v3_v3(r_no, bmdm->vertexNos[index]);
 	}
 	else {
-		BMVert *ev = bmdm->em->vert_index[index];  /* should be EDBM_vert_at_index() */
+		BMVert *ev;
+
+		BLI_assert((bm->elem_table_dirty & BM_VERT) == 0);
+		ev = bm->vtable[index];  /* should be BM_vert_at_index() */
 		// ev = BM_vert_at_index(bm, index); /* warning, does list loop, _not_ ideal */
 		copy_v3_v3(r_no, ev->no);
 	}
@@ -1298,7 +1305,10 @@ static void emDM_getPolyNo(DerivedMesh *dm, int index, float r_no[3])
 		copy_v3_v3(r_no, bmdm->polyNos[index]);
 	}
 	else {
-		BMFace *efa = bmdm->em->face_index[index];  /* should be EDBM_vert_at_index() */
+		BMFace *efa;
+
+		BLI_assert((bm->elem_table_dirty & BM_FACE) == 0);
+		efa = bm->ftable[index];  /* should be BM_vert_at_index() */
 		// efa = BM_face_at_index(bm, index); /* warning, does list loop, _not_ ideal */
 		copy_v3_v3(r_no, efa->no);
 	}
@@ -1316,7 +1326,8 @@ static void emDM_getEdge(DerivedMesh *dm, int index, MEdge *r_edge)
 		return;
 	}
 
-	e = bmdm->em->edge_index[index];  /* should be EDBM_edge_at_index() */
+	BLI_assert((bm->elem_table_dirty & BM_EDGE) == 0);
+	e = bm->etable[index];  /* should be BM_edge_at_index() */
 	// e = BM_edge_at_index(bm, index); /* warning, does list loop, _not_ ideal */
 
 	r_edge->flag = BM_edge_flag_to_mflag(e);