[Piglit] RFC: GLES2 & shader tests

[Ian Romanick]

On 12/11/2012 12:23 PM, Tom Gall wrote:
> Hi,
>
> I've been looking at how to take advantage of the glslparsertest code
> so that it could be used for OpenGL ES 2 testing as well.
>
> Thought I'd ask for an opinion on versions for glsl on gles2.
>
> For gles2, should the lower bound of valid versions be 1.00?  (The
> Open GL ES Shading Language spec says it's version 1.00 of the
> language)
>
> So currently within the config sections there is:
> // [config]
> // expect_result: fail
> // glsl_version: 1.10
>
> So if acceptable this would mean 1.00 would become valid option.
>
> It would also clean up glslparsertest.c in the PIGLIT_GL_TEST_CONFIG
> section which assumes if you don't pass a version or the version
> passed doesn't match then it's gles 20/gl 10.

This should just work now.  If you specify 'glsl_version: 1.00', 
glslparsertest will get passed 1.00 as the version parameter.  The 
existing switch statement will set 'config.supports_gl_es_version = 20'. 
  We may want to add explicit cases for 100 and 300.

I think some recent changes broke the interaction with glslparsertest 
and desktop GL + GL_ARB_ES[23]_compatibility.  It seems to require an ES 
context now. :(

> Thoughts?
> --
> Regards,
> Tom
>
> "Where's the kaboom!? There was supposed to be an earth-shattering
> kaboom!" Marvin Martian
> Graphics Working Group | Linaro.org │ Open source software for ARM SoCs
> w) tom.gall att linaro.org
> h) tom_gall att mac.com
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