[openbeos] Re: OpenGL Kit for R1? (fwd)

En réponse à Philippe Houdoin <philippe.houdoin@xxxxxxx>:

> Axel wrote:
> >>> Call me dumb for asking this - but does this make it 
> >>> easier/harder/just the same for us to get hardware acceleration 
> >>> working now?
> >>
> >> Just the same.  It really just means that applications and other 
> >> 3D users can start writing programs, and they'll work unchanged 
> >> when a hardware accelerated OpenGL is put in place.
> >
> > I think this it not entirely correct as the latest Mesa has support 
> > for some hardware-accelerated drivers, so it might be easier now to 
> > port them over to BeOS and use the existing GL stack.
> 
> Mesa since some years now (v3.x) have chnage his internal design 
> to be able to move more and more OpenGL pipeline stages to 
> hardware drivers. Today, only DRI drivers offer 3D HW accel with Mesa.
> It would not be easy to *port* these into OpenBeOS, as it would involve
> 
> update/rewrote from scratch some 2d drivers to include the necessary 
> 3D supports, and could/would involve some cooperation with app_server
> too.
> 
> But I really think it's our best option we have to, someday, get 3D hw
> 
> accel support.
> 
> -Philippe
> 
> 


Looking at the *cough* OpenGL beta headers, Be just added 5 calls to the 
.accelerant API, but maybe what we want is to have separated 2D and 3D drivers,
so 2D could be native, and 3D operation could be handled by DRI.
I do'nt know much of the GL/DRI stuff though, so maybe this can't be.

François.

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