Re: Dual-head support

On 1/11/07, Daniel Márquez Martínez <[email protected]> wrote:
> Which way to get those 2560x2048 ?

you need r300 and above hardware to get greater than 2048

> Don't know what IIRC is.

IIRC = If I Recall Correctly

Alex

>
> Thanks.
>
> Roland Scheidegger wrote:
> >Daniel Márquez Martínez wrote:
> >
> >>Ok. I know the GL_MAX_TEXTURE_SIZE is set depending on the card's
> >>hardware limits.
> >>But what about the dualhead support? One monitor, one desktop. All with
> >>DRI enabled.
> >>
> >Did you mean two monitors?
> >
> >
> >>At the moment it doesn't work at all, or am I wrong ?
> >>If so, please tell me how to enable it.
> >>
> >This works, but there are hw limits for the size of the area which can
> >be rendered too. This is 2048x2048 on chips up to rv280, but r300 and up
> >should support 2560x2560 at least IIRC, possibly more.
> >(It might be possible maybe for the driver on old chips to hack around
> >the 2048 limit, I think it would work if the driver would submit the
> >rendering commands multiple times, and hack up cliprects, color/depth
> >buffer offsets, and viewport matrix while doing so. However, I think
> >there would be problems with color tiling (needs to be switched off),
> >hyperz (the same), depth buffer reads / writes (probably does not work
> >with surface translation etc.))
> >
> >Roland
> >
> >
>
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