[Piglit] [PATCH] Modify shader_runner to skip tests with unsigned uniforms when GL<3.0

[Kenneth Graunke]

On 02/08/2012 08:52 AM, Paul Berry wrote:
> On implementations that support GLSL version 1.30 but not GL version
> 3.0 (for example Mesa, when built without floating point texture
> support), it is impossible to test unsigned uniforms, because the
> Uniform*ui{v} functions are not available.  So any shader_runner tests
> that use unsigned uniforms should be skipped.
>
> Since it's rare for implementations to support GLSL version 1.30 but
> not GL version 3.0, we don't want to require test writers to remember
> to add "GL>=3.0" to the top of their test scripts.  So instead, this
> patch modifies shader_runner to automatically skip any test that uses
> unsigned uniforms if the GL version is less than 3.0.
>
> Avoids 404 bogus "crash" results in
> spec/glsl-1.30/execution/built-in-functions when testing with a
> version of Mesa that was built without floating point texture support.
> ---
>   tests/shaders/shader_runner.c |   15 +++++++++++++++
>   1 files changed, 15 insertions(+), 0 deletions(-)

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>