f_dist_calc      1208 core/shooting.c   short f_hyp_calc = 0, f_dist_calc = 0;
f_dist_calc      1261 core/shooting.c     f_dist_calc = 1;
f_dist_calc      1290 core/shooting.c   camera_info.dof_values.distance_valid = (f_focus_ok || (camera_info.dof_values.distance_valid && !f_dist_calc)||(camera_info.dof_values.hyperfocal_valid && shooting_get_focus_mode()));