[Mesa3d-dev] GLX_EXT_texture_from_pixmap

[David Reveman]

On Mon, 2006-02-06 at 11:18 -0700, Brian Paul wrote:
> David Reveman wrote:
> > Hey,
> > 
> > here's the latest version of the texture from pixmap spec that Xgl will
> > be supporting. It's not fully implemented in Xgl yet, just so much of it
> > that you can get an indirect rendering compositing manager running using
> > it.
> > 
> > I've also attached a temporary glxproto.h patch and my latest patches to
> > Mesa for client-side support. They should work with current CVS of Mesa.
> 
> Hi David,
> 
> I've been meaning to take a closer look at this extension for a long 
> time, and probably roll it into Mesa CVS.
> 
> A few questions:
> 
> 1. Normally the "EXT" designation is used for extensions that have 
> been implemented by at least two OpenGL vendors.  What do you think of 
> making it a "MESA" extension?

I believe Nvidia is currently working on an implementation and they did
much of the hard work in writing the spec.

> 
> 2. Do you characterize the extension as being a short-term/stop-gap 
> solution until EGL-based drivers are available?  If it gets 
> incorporated into Mesa CVS I worry people might get a little too 
> attached to it and divert attention way from the longer-term EGL 
> solution.  I may just be over-cautious.

It's a long-term solution. This extension is provided by Xgl and is used
by the compositing manager. If Xgl is using EGL-based drivers or not
doesn't matter, the compositing manager will still use GLX.

> 
> I'll try to read the whole spec soon and comment on it.

Great!

Thanks,

-David