On Maw, 2006-05-23 at 11:41 -0400, Kyle Moffett wrote:
> So a modern GPU is essentially a proprietary CPU with an obscure
> instruction set and lots of specialized texel hardware? Given the
> total lack of documentation from either ATI or NVidia about such
> cards I'd guess it's impossible for Linux to provide any kind of
> reasonable 3d engine for that kind of environment, and it might be
> better to target a design like the Open Graphics Project is working
> to provide.
Its typically a device you feed a series of fairly low level rendering
commands to sometimes including instructions (eg shaders). DRI provides
an interface that is chip dependant but typically looks like
[User provided command buffer]
|
[Kernel filtering/DMA interface]
|
[Card command queue processing]
All the higher level graphic work is done in the 3D client itself.
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