svn commit: r317171 - head/sys/dev/vt

[Ed Maste]

On 20 April 2017 at 14:06, Jung-uk Kim <jkim at freebsd.org> wrote:
>
> Maybe but I haven't seen much improvement in the area for many years.
> Do you have any reason to believe someone is working on it?
>
> Even if we have such backend, I don't expect much difference in drawing
> small area, i.e., redrawing narrow borders.  On top of that, I don't
> like "if (vd->vd_driver->vd_drawrect == NULL) return (ENOTSUP)" stuff.

I don't believe anyone is working on it at the moment, but I expect
that effort will go into improved VGA / VESA support at some point and
that might implement an improved drawrect. I agree that there's
unlikely to be a noticeable difference in the case of occasional
operations filling a small region (e.g., border clearing after vt
switch).

However, the vd_drawrect == NULL case is really no different than
vd_setpixel == NULL. All vt drivers except ofwfb provide both, and
ofwfb provides neither.