Re: [Linux-fbdev-devel] Linux fbcon.c

[Geert U. <ge...@li...>]

On Fri, 8 Jun 2001, Florian Lechner wrote:
> 	Would you mind sending me your code, cos at the moment my screen is
> pretty much screwed up, but not rotated.=20

I don't ave code for it.

> I just tried to rotate the *s on putcs. last to first and mirrored ever=
y
> byte.=20
> Result--> mixed up screen color and chars.=20
>=20
> As far as I figured, the *s holds a bunch of bytes for the video_mem.=20

Yes, the string contains both characters and attributes.

But you don't have to change the fbcon_putcs() routine, you have to chang=
e the
drawing routines in one of fbcon-*.c.

> Geert Uytterhoeven wrote:
> > On Fri, 8 Jun 2001, Florian Lechner wrote:
> > > ANYBODY OUT there to help me?
> > >
> > > So my Question:
> > >
> > >       I'm trying to rotate the fb by 180=B0.
> >=20
> > In the console, or in X?
> >=20
> > > Reason:
> > >       I have an embedded board ElanSC400, C&T 65550, etc.
> > >
> > > I'm reading the driver/video code for a couple of days now, and pin=
ned
> > > down myself to three points where I have to do changes to rotate th=
e
> > > display.
> > >
> > >       fbcon.c --> fbcon_putc
> > >       fbcon.c --> fbcon_putcs
> > >       fbmem.c --> fb_write
> > >
> > > Is that correct?
> >=20
> > For the console, I'd just write my own fbcon-*.c replacement (e.g.
> > fbcon-cfb8-r180.c, cloned from fbcon-cfb8.c) where you take the rotat=
ion in
> > mind in the following functions:
> >=20
> >   - bmove
> >   - clear
> >   - putc
> >   - putcs
> >   - revc
> >   - clear_margins

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m6=
8k.org

In personal conversations with technical people, I call myself a hacker. =
But
when I'm talking to journalists I just say "programmer" or something like=
 that.
							    -- Linus Torvalds