Cleanup: material API naming

- Use 'BKE_object_material_*', 'BKE_id_material_*' prefix
  for functions that operate on Object and ID types.
- Use '_len' suffix for length (matching BLI naming).
- Use '_p' suffix for functions that return a pointer to values
  where the value would typically be returned.

Functions renamed:

- BKE_object_material_resize      was BKE_material_resize_object
- BKE_object_material_remap       was BKE_material_remap_object
- BKE_object_material_remap_calc  was BKE_material_remap_object_calc

- BKE_object_material_array_p     was BKE_object_material_array
- BKE_object_material_len_p       was BKE_object_material_num
- BKE_id_material_array_p         was BKE_id_material_array
- BKE_id_material_len_p           was BKE_id_material_num

- BKE_id_material_resize          was BKE_material_resize_id
- BKE_id_material_append          was BKE_material_append_id
- BKE_id_material_pop             was BKE_material_pop_id
- BKE_id_material_clear           was BKE_material_clear_id

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/editors/render/render_preview.c b/source/blender/editors/render/render_preview.c
index a42064ff7b9..e2841f01ab5 100644
--- a/source/blender/editors/render/render_preview.c
+++ b/source/blender/editors/render/render_preview.c
@@ -471,7 +471,7 @@ static Scene *preview_prepare_scene(
           if (OB_TYPE_SUPPORT_MATERIAL(base->object->type)) {
             /* don't use BKE_object_material_assign, it changed mat->id.us, which shows in the UI
              */
-            Material ***matar = BKE_object_material_array(base->object);
+            Material ***matar = BKE_object_material_array_p(base->object);
             int actcol = max_ii(base->object->actcol - 1, 0);
 
             if (matar && actcol < base->object->totcol) {