Re: [Mesa3d-dev] Bug in SI-GLU: invalid call to glMapGrid2f()

[Brian P. <br...@va...>]

Diego Santa Cruz wrote:
> 
> Hi,
> 
> First of all thanks for the great work you have put on Mesa!
> 
> I've been using the SI-GLU for some time with Mesa-3.4.1 and I have come
> across what I think is a bug in the NURBS renderer of the SI GLU. In
> some cases it generates invalid calls to glMapGrid2f(), with a value of
> vn or un of zero. Since the SI GLU is being integrated in Mesa I think
> this is relevant here. I have submitted this to the SI mailing list but
> that appears to be almost abondoned. Since the SI GLU is being
> integrated in Mesa this might be the place to report it. Hope this is
> the correct mailing list.
> 
> Below is a copy of the message I sent to the SI mailing list at
> ogl...@os..., with a test program as well as a very simple
> patch that I think fixes the problem (as far as I could test, but my
> knowledge of the GLU implementation is very limited).

I'd send the report to the SI mailing list again.  The folks
who handle the SI at SGI are pretty busy but if you're persistant
somebody will eventually tend to it.

In the mean time, I'll apply your patch to the SI-GLU in the Mesa
source tree.

Thanks.

-Brian