[<akin@po...>]

On Mon, Feb 28, 2000 at 03:50:12PM -0500, teunis wrote:
| On using OpenGL for rendering 2D stuff....
| 
| Is it possible to implement an accelerated X this way?

It's certainly possible, but it's not obvious that it's worth the
effort.  Some things probably would work well (e.g., using texturing
hardware to implement tiling).  Other things probably would work
poorly (e.g., OpenGL's wide-line semantics aren't the same as X11's)
or would have to be emulated in software.  Things that aren't related
to drawing probably would be roughly the same.

Using direct rendering would introduce some interesting implementation
problems, since some X operations (window-tree management, X resource
manipulation) still need to be centralized.  A direct-rendering
version of X might be a good project even if it's not based on OpenGL. 
One would have to do a careful job of separating pure rendering
operations from all the other operations that would still need to be
centralized in the server.

Allen