[Piglit] glSecondaryColorPointer with size 4

[Vinson Lee]

> -----Original Message-----
> From: Brian Paul [mailto:brianp at vmware.com]
> >
> > AFAICT, only 3 should be legal, but NVIDIA's driver allows 4 (as does
> > Mesa since 2000).
> >
> > Here's a couple patches for the piglit tests to use 3 instead of 4.
> > Could you see if these help with OS X?
> >
> > I also made a minor fix to bgra-sec-color-pointer.c so that a visual
> > with an alpha channel is requested since the blend mode depends on
> > destination alpha.
> 
> Oops, one of the patches was an empty file.
> 


With the patches, both bgra-sec-color-pointer and glsl-routing now pass on Mac OS X.