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Re: [ogl-sample] Missing GLX tokens.

To: ogl-sample@xxxxxxxxxxx
Subject: Re: [ogl-sample] Missing GLX tokens.
From: "Stephen J Baker" <sjbaker@xxxxxxxx>
Date: Tue, 19 Jun 2001 08:19:01 -0500 (CDT)
In-reply-to: <3B2E86EB.837F40EB@xxxxxxxxxxxxxx>
Reply-to: ogl-sample@xxxxxxxxxxx
Sender: owner-ogl-sample@xxxxxxxxxxx
On Tue, 19 Jun 2001, Leath Muller wrote:

> > Is the latest GLX extensions header still this one?
> > 
> >    http://oss.sgi.com/projects/ogl-sample/ABI/glxext.h
> > 
> > If so, then it is missing these two symbols:
> > 
> >    #define GLX_SAMPLE_BUFFERS_ARB 100000
> >    #define GLX_SAMPLES_ARB        100001
> > 
> > If not, could you please point me at the latest one.
> I haven't used the ARB calls -- where they finalised? (Obviously were... :)

Well, they are in the extensions registry - and they work on my GeForce-3
card under Linux.  If they aren't "finalised" they certainly *ought* to

> The WGL ext and the normal glext.h have the EXT's defined -- will they do?

In the file here:


(which might be the wrong file - but it's the one referenced
from the Linux OpenGL ABI and the only one I can find) we find

  #ifndef GLX_3DFX_multisample
  #define GLX_SAMPLE_BUFFERS_3DFX            0x8050
  #define GLX_SAMPLES_3DFX                   0x8051

...which is a quite different extension and has different token
values from the ARB extension that I'm looking for.

The *GL* extensions file has:

#define GL_SAMPLES_ARB                    0x80A9
#define GL_SAMPLES_SGIS                   0x80A9
#define GL_SAMPLES_3DFX                   0x86B4
#define GL_SAMPLES_EXT                    0x80A9

...but no GLX tokens.

Hmmm - since the glext.h header contains the tokens
from the ARB multisample extension, it *must* be an
oversight that they are missing from glxext.h

Steve Baker                      (817)619-2657 (Vox/Vox-Mail)
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