Subject: RE: Ideas for accelerated video on MOL (generic PCI device proxy)
From: Michael Clark (michael@metaparadigm.com)
Date: Tue Feb 20 2001 - 05:41:46 MST
> > sends all the encoded GL commands off to the native DRI GL. With
> > this library substituted for the normal one, Mac GL apps that can
> > work with a fullscreen context would never know the difference. The
> > most difficult part would likely be emulating the functionality of
> > Apple's AGL stuff.
>
> > Windowed GL might be a lot more difficult though.
>
> You'll have to do something like impose a mask for the OpenGL rastering
> by extracting the internal region handling of the windowing system and
> a convert that into OpenGL a compatible z-buffer, I guess.
>
> It's pretty non-trivial stuff and most like will have to intimately
> require some trickey examination of how QuickDraw does clipping and region
> handling.
>
> I was experimenting with the old QuickDraw several years ago with this
> stuff, but didn't progress much into these areas. Probably for the better. ;-)
This would all be alot easier using a 'generic PCI device proxy' allowing you to
leverage existing MacOS display acceleration and GL drivers. My main interest is
the viability of that approach.
Although I think I might be happy with just accelerated block move and clear.
~mc
This archive was generated by hypermail 2a24 : Tue Feb 20 2001 - 05:38:56 MST