-tbm_bo tbm_bo_alloc_with_format(tbm_bufmgr bufmgr, int format, int bo_idx, int width, int bpp, int height, tbm_bo_memory_type flags, tbm_error_e *error);
-tbm_bo tbm_bo_alloc_with_bo_data(tbm_bufmgr bufmgr, tbm_backend_bo_data *bo_data, int flags);
+tbm_bo tbm_bufmgr_internal_alloc_bo(tbm_bufmgr bufmgr, int size, int flags, tbm_error_e *error);
+tbm_bo tbm_bufmgr_internal_alloc_bo_with_format(tbm_bufmgr bufmgr, int format, int bo_idx, int width, int bpp, int height, tbm_bo_memory_type flags, tbm_error_e *error);
+tbm_bo tbm_bufmgr_internal_alloc_bo_with_bo_data(tbm_bufmgr bufmgr, tbm_backend_bo_data *bo_data, int flags);
+tbm_bo tbm_bufmgr_internal_import_bo_with_key(tbm_bufmgr bufmgr, tbm_key key, tbm_error_e *error);
+tbm_bo tbm_bufmgr_internal_import_bo_with_fd(tbm_bufmgr bufmgr, tbm_fd fd, tbm_error_e *error);