🚀 go-pugleaf

In <32D6B089.5B0E@bigbook.com> Colby Kraybill <colby@bigbook.com> writes:

>Second: I'm running openstep on this machine and would like to
>make the default visuals 24bit true color.
>Is the TGX+ capable of 24bit?  I was told no by a friend who
>used to work for sun, but that seems really wacko considering
>there's 4MB of ram on the boards. And according to the 
>framebuffer FAQ on tarl.net, one should be able to use
>24bit visuals on the TGX+ card.

The problem isn't necessarily the ammount of RAM, but the capabilities of
the pallette DAC (or DAC's). An 8-bit pallette DAC is restricted to 8 bits
only. I have a VME cg9 24-bit colour framebuffers which uses three 8-bit
pallette DAC's - one for each colour gun drive signal. 

Some framebuffers might have several pallette DAC's that can be programmed
to work in different configurations to give different numbers of
bits-per-pixel?

Regards,

Craig.
-- 
            Craig Dewick. Send email to 'cdewick@lios.apana.org.au'
   Point a web browser at 'http://lios.apana.org.au/~cdewick/sun_ark.html' to
       access my collection of Sun information and links to other places.