SGI OpenGL SI libs updated

[Suhaib Siddiqi]

I noticed the problem last night.
The GLUT code in SGI OpenGL SI uses GLX.
I would see what I can do to activate GLX extension on XWin.

I agree $200.00 for just GLX extension is too much.  Exceed basic server
pffers only 8 extensions.  One can add GLX extension to Exceed for 200
dollars.

Suhaib

> -----Original Message-----
> From: cygwin-xfree-owner@sourceware.cygnus.com
> [ mailto:cygwin-xfree-owner@sourceware.cygnus.com]On Behalf Of Andre
> Bleau
> Sent: Friday, June 16, 2000 10:35 AM
> To: Suhaib Siddiqi; cygwin-xfree@sourceware.cygnus.com
> Subject: RE: SGI OpenGL SI libs updated
>
>
> At 17:43 2000-06-15 -0700, Suhaib Siddiqi wrote:
> >LibGLUT has nothing to do with GLX extension.
> >
> >You can checkout latest SGI OpenGL SI source cdoe from
> >their CVS http://oss.sgi.com/project/ogl-sample .
> >
> >It is libGLcore.a and libglx.a(so) when linked to
> >X-server provide GLX extension and if your application
> >is linked to libGL.a, and libGLU.a, plus it included
> >/usr/X11R6/include/GL/glxext.h or glext.h which
> >contain calls to GLX extension, then your application
> >would need an X-server with GLX extension.
> >
> >I do not understand why linking to libGLUT.a would
> >make your app call GLX extension. If your project is
> >an opensource or you want me to have a look at your
> >code, I would do my best to help you.
> >
> >Suhaib
>
> Thanks for your help offer. Lets start with something real
> simple; here is
> a small C++ file, testglut.cpp:
>
> #include <string.h>
> #include <GL/glut.h>
>     int   main_window;
>     void main(int argc, char* argv[])
>     {
>     /****************************************/
>     /*   Initialize GLUT and create window  */
>     /****************************************/
>
>        glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
>        glutInitWindowPosition( 50, 50 );
>        glutInitWindowSize( 300, 300 );
>
>        main_window = glutCreateWindow( "Test for GLUT library calls" );
>
>        glutMainLoop();
>     }
>
> I compiled and linked it with:
>
> g++ -o testglut testglut.cpp -g -I/usr/X11R6/include -L/usr/X11R6/lib
> -L/usr/X11R6/static-lib -lglut -lGLU -lGL -lXmu -lX11
>
> Running it with either the standard Exceed or the XFree X server, the app
> stops, displaying:
>
> GLUT: Fatal Error in (unamed): OpenGL GLX extension not supported by
> display: 127.0.0.1:0
>
> I don't know what version of GLUT is part of the sgi-opengl.tar.bz2 you
> provided, but I downloaded the latest version of the GLUT source code from
> http://reality.sgi.com/mjk_asd/glut3/glut3.html . For non WIN32
> implementations, glutCreateWindow calls __glutCreateWindow, which calls
> __glutOpenXConnection which check if the X server supports the GLX
> extension and stops if it doesn't.
>
>
>
>
> André Bleau, ing., analyste
> bleau@courriel.polymtl.ca
>
> Département de génie électrique et         Electric Engineering and
> de génie informatique                      Computer Engineering department
> École Polytechnique de Montréal            Montreal Polytechnic School