[Plib-users] invalid OpenGL context problem

[Roy W. <ro...@ce...>]

This is an odd problem that I'm hoping that someone can shed some light 
on....

I'm having trouble with PLIB on my machine (RedHat 7.2, exact specs 
below, if that matters; and yes, all the underlying X/OpenGL stuff is 
fine-- I checked).  The specific symptoms are that calls to functions 
like puInit() are failing with a warning of "puInit() called with an 
invalid OpenGL context."  This occurs even for simple examples in the 
PLIB demo tarball.

After some investigation, I've determined that the glut calls to set up 
the window are all completing correctly, but it seems as if there is a 
delay in the window creation such that puInit() is called before the 
window actually appears.  I tried delaying the call to puInit() and can 
actually see the window pop, but other calls to PLIB functions cause 
things to eventually crap out (I may be able to tweak it into working 
correctly, but it was getting late and I was tired).

So, any of you folks ever run into anything like this before?  Any 
suggestions?


-Roy



p.s.  As promised, the system specs are RedHat 7.2, XFree86 4.1, Mesa 
3.4.7, glut version that ships with Mesa 3.4.7 (sorry-- can't get at my 
system right now to determine the glut version), all on an AMD K6-II 500 
MHz box, FIC 503A motherboard (VIA chipset), Matrox G450 videocard.  I 
have tested out glut and yes, it works just fine (the gears demo runs at 
about 500 frames/sec), as does XFree86 and OpenGL in general.