[PATCH] glretrace: Add a new --stub-fs to stub out fragment shaders

[Carl Worth]

Eric Anholt <eric at anholt.net> writes:
> Yeah, the simplification of the VS kills this idea.

That's too bad. Is something that we could potentially in our
implementation so that we at least have useful numbers in the
short-term, (if not a general solution)? Or do you have a recommendation
for something else to do here to get the numbers you want?

José, you previously said:

>> Another solution would be to setup vertex stream output to skip FS.

Can you give me some small pointers to what would be entailed here? (I'm
still a total GL newbie, but I can generally sift make sense of
documentation given some starting points.)

In the meantime, I'm also sifting through what documentation we have for
Sandy Bridge and Ivy Bridge on:

	http://intellinuxgraphics.org/documentation.html

to see what we could expose via AMD_performance_monitor that would give
us useful numbers.

Any suggestions will be most appreciated.

-Carl
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