[Piglit] [RFC] shader_runner branch

[Brian Paul]

Ian Romanick wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> I have a branch, called shader_runner, in my local GIT tree that adds a
> generic shader test runner.  There is a branch with the same name in the
> main piglit GIT tree, but that branch only contains fail.  My lack of
> GIT-fu shows.
> 
>     git://anongit.freedesktop.org/~idr/piglit shader_runner
> 
> It's conceptually similar to vpfp-generic, which is used for assembly
> shader tests.  The test files are "ini" style with "[section header]"
> section divisions.  The shader code can either be in the test file or
> stored in external files.  One of the planned future changes is to
> subsume the vpfp-generic functionality so that tests of mixing assembly
> and GLSL can be written.
> 
> It currently only supports a subset of what we really want (i.e., it
> only supports setting vec4 uniforms), but it is very easy to add new
> features as needed.
> 
> I'd like some review of this branch before I merge it.  In particular,
> the code uses some of the portability checks in cmake.  The commits
> listed below are the relevant changes.  I'd especially appreciate it if
> someone could try building this on OS X and Windows.

I wrote something like this last year: progs/glsl/shtest.c

It reads a config file which lists shader file names, uniform values, 
texture images, etc.  To try it:

cd progs/glsl
./shtest toyball.shtest

I used it at a test harness to debug shaders extracted from other 
games/apps/demos.

Maybe there's some code or ideas there for you to leverage.

-Brian