Re: [GtkGLExt] gtk-quartz for osx

[Jean-Philippe Chancelier <jpc cermics enpc fr>]

	Hello, 

	I have encountered a bug in gtkglext, running the demo 
	pixmap crashes with error 'GLXBadContext'. This error 
	happens with i810 or interl drivers with direct rendering. 
	If I remove the direct rendering in the server configuration 
	then I do not have the bug. I also do not have the bug on a nvidia Xserver 
	with DRI. 
	The same bug exists in mesa-demo thus seams not related 
	to gtkglext. 
	I have searched for information on the web 
	and someone seamed to point out that it was related 
	to glx version which should be 1.3 for using GLXPixmaps and this 
	was not checked in gtkglext. I do not know if this statement is 
	correct but if true it should be usefull to be able to query 
	for the glx version in gtkglext in order to detect such potential 
	bug. 
	
	There's a private _gdk_x11_gl_print_glx_info but no 
	way to query for glx version as far as I know 
	Cheers 
	jpc