Re: [Linux-fbdev-devel] Portrait display mode

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

On 11 Sep 2002, Antonino Daplas wrote:
> On Wed, 2002-09-11 at 04:44, Otto Wyss wrote:
> > I guess the framebuffer drivers so far don't support turning the disp=
lay 90=B0 as
> > the Pivot software does for Windows/MacOS. Since I'm considering buyi=
ng a
> I posted a patch under the thread titled "Console Rotation" 2 days ago.=
=20
> It should support rotation in 3 additional directions (90, 180 and 270
> degrees).  As far as fb-based apps, they have to do the rotation on
> their own.  XFbdev in 4.2.0 already does that.
>=20
> > turnable display I rather see this feature implemented. I even may he=
lp but can
> > spend much time. How difficult would it be?
> >=20
> It should not be too difficult to add per-driver support once the

Can't this be moved up to generic code, so we don't have to modify all dr=
ivers?

> rotation wrappers are implemented.  The main requirement is that the
> driver must support the drawing primitives (xxxfillrect, xxxcopyarea,
> xxximageblit -- main reason I like the primitives is because you can do
> a lot of fancy things with minimal code change).  I already did this
> with VESA fb, and it required less than 100 lines of code.

Since in the end all drivers will, this is not a real issue.

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