[Piglit] [PATCH] ext_framebuffer_multisample: check for num_samples<=1

[Brian Paul]

On Sun, Jan 27, 2013 at 2:51 AM, Eric Anholt <eric at anholt.net> wrote:
> Brian Paul <brianp at vmware.com> writes:
>
>> Even if GL_ARB_multisample is advertised, it's OK for the max number of
>> samples to be zero.
>
> Huh?  The EXT_framebuffer_multisample spec says minmax of MAX_SAMPLES is
> 1.

And GL_ARB_framebuffer_object says it's zero.

It looks like the piglit test is checking the wrong extension.  At
line 364 we're calling
piglit_require_extension("GL_ARB_framebuffer_object").  I don't see
any checks for GL_EXT_framebuffer_multisample.  I was looking at
GL_MAX_SAMPLES in the former, not the later.

I guess the proper fix is to just check for the proper extension.

-Brian