How to trace app's glXChooseVisual call?

From: Benjamin Goldsteen (ben_at_inka.mssm.edu)
Date: 08/20/03 

Date: 19 Aug 2003 18:34:33 -0700

I have a commercial application that calls glXChooseVisual with fairly
high requirements. So far, only SGI workstations (tested Extreme
through Vpro) and Windows PCs running Exceed offer acceptable visuals.
 I would like to know what parameters it is calling glXChooseVisual
with so that I can figure what to look for in other X servers.

I tried using ogldebug but it doesn't list the parameters. I also
tried dbx'ing the binary and viewing the stack trace but the pointer
to the attrList array contains impossible data. I was able to dbx a
binary that I created and correctly match up the parameters to
glXChooseVisual so I don't understand what is going on.

Any suggestions appreciated.

Thanks