Fix T44383: Select face fails in some positions

When mixing vert/edge/face with select-visible,
face selection could fail when not close enough to the center.

This also fixes a bug where the bias for verts over edges would
prefer faces over edges too, making edges harder to pick.

Mixing edge with other selection modes works more predictably now.

1 files changed, 12 insertions, 3 deletions

diff --git a/source/blender/editors/include/ED_mesh.h b/source/blender/editors/include/ED_mesh.h
index f8be5251b53..91b05cdc1ba 100644
--- a/source/blender/editors/include/ED_mesh.h
+++ b/source/blender/editors/include/ED_mesh.h
@@ -137,11 +137,20 @@ bool EDBM_backbuf_border_mask_init(struct ViewContext *vc, const int mcords[][2]
                                    short xmin, short ymin, short xmax, short ymax);
 bool EDBM_backbuf_circle_init(struct ViewContext *vc, short xs, short ys, short rads);
 
-struct BMVert *EDBM_vert_find_nearest(
+struct BMVert *EDBM_vert_find_nearest_ex(
         struct ViewContext *vc, float *r_dist,
         const bool use_select_bias, const bool is_strict);
-struct BMEdge *EDBM_edge_find_nearest(struct ViewContext *vc, float *r_dist);
-struct BMFace *EDBM_face_find_nearest(struct ViewContext *vc, float *r_dist);
+struct BMVert *EDBM_vert_find_nearest(
+        struct ViewContext *vc, float *r_dist);
+
+struct BMEdge *EDBM_edge_find_nearest(
+        struct ViewContext *vc, float *r_dist);
+
+struct BMFace *EDBM_face_find_nearest_ex(
+        struct ViewContext *vc, float *r_dist,
+        struct BMFace **r_efa_zbuf);
+struct BMFace *EDBM_face_find_nearest(
+        struct ViewContext *vc, float *r_dist);
 
 bool EDBM_select_pick(struct bContext *C, const int mval[2], bool extend, bool deselect, bool toggle);