On Thu, 2011-09-15 at 12:00 +0100, Robert Osfield wrote:
> Hi All,
>
> I'm note yet clear on exactly where the problems are stemming form
> with the NVidia 275+ drivers but with the assumption that the
> glGetActiveUniform is appending a [..] and the the matching
> glGetUniformLocation can handle the name without the [..] appended
> I've written some code to do the trimming off of the [..]. I've
> tested this with an artificially append [0] and it works fine, but
> haven't yet tested against the problem drivers. My code looks like:
>
> _extensions->glGetActiveUniform( _glProgramHandle,
> i, maxLen, 0, &size, &type, name );
>
> int pos = strlen(name);
> if (pos>0 && name[pos-1]==']')
> {
> // need to trim [..] from end of name as some drivers
> append this causing problems with look up.
> --pos;
> while(pos>0 && name[pos]!='[') { --pos; }
> name[pos] = 0;
> }
>
> GLint loc = _extensions->glGetUniformLocation(
> _glProgramHandle, name );
>
> I have also attached the modified Program.cpp. Could users that have
> seen the driver issue test out this proposed version of Program.cpp?
> If things work fine I'll check it into svn/trunk.
This continues to resolve the problem for me on 280+, so I must assume
it also works on 275 (the issue existed on both).
> Cheers,
> Robert.
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