gl calls before context set up = crash!

Hi all,

My research group is working on some modifications to Cr to allow head-tracked
stereo for CAVE-type environments and we've had some good success!

But I've run into a nasty problem: we're running a 3rd-party client app that's
very naughty... It appears to be calling gl calls before setting up its
rendering context.

We're working on Windows, starting from the 1.7 release code (I know, I should
probably grab what's in CVS...) and the functions in windows_exports.c
typically do the following:

NAKED void cr_SomeFunc( argsGoHere )
{
	__asm jmp [glim.SomeFunc]
	UNUSED( argsGoHere );
}

I haven't dug too far into this yet, but I think this blind jmp is the
problem, since glim hasn't been set up yet. We would either need to test for
this or glim needs to be set up sooner...

Can anyone comment on what would be involved in getting a high-performance
work-around going for this degenerate case!

Thanks,
Jon


Jonathan Marbach
BP Center for Visualization
3400 Marine St.
Boulder, CO 80218
www.bpvizcenter.com



-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click