Re: 30bit colordepth

[Sander Vesik <sander_traveling yahoo co uk>]

 --- Keith Packard <keithp keithp com> wrote: > 
> Around 9 o'clock on Dec 24, Owen Taylor wrote:
> 
> > but making it actually handle 10-10-10 colors is
> going to be harder, since
> > the code makes a lot of use of passing around RGBA
> color components packed
> > into a 32-bit word.
> 
> That's just internal code that could be easily
> shifted to use 16-16-16-16 
> at some (possibly significant) speed penalty.
> 

This will probably also help handle the finaly on the
horison non-linear 16 bit (1:10:5) encodings and the
few 12 bit cards out there

> > Also, I'm not sure RENDER has a good definition of
> the
> > correct arithmetic for depths > 8 yet.
> 
> RENDER is defined up to 16 bits per component;
> extending the core protocol 
> to 64 bit pixels is a different matter though.
> 

Wouldn't SGI / Sun / IBM  who have framebuffers with
more than 8 bits per primary have had to handle this
already?

> -keith


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