} else {
!just_convert
};
- let needs_unpack = needs_scale || !ifmt.fmt.is_unpacked();
+ let needs_unpack = !ifmt.fmt.is_unpacked();
let needs_pack = !ofmt.fmt.is_unpacked();
let needs_convert = inname != outname;
let scale_before_cvt = is_better_fmt(&ifmt, &ofmt) && needs_convert