[Mesa-dev] [PATCH 0/3] Minor fixed-function fragment shader cache key optimizations.

[Gustaw Smolarczyk]

Hello,

I was playing with profiling Minecraft on radeonsi in perf and found that
_mesa_get_fixed_func_fragment_program was a little bit too high in the profile
log than it should. I assumed that most of it comes from make_state_key static
function which I am trying to optimize now in the spare time.

I started with a few pretty simple things. I don't think they will help much,
but should be a good start.

The code is divided into 3 patches, which might be an overkill. I can squash
them if you prefer that.

For more serious performance benefits, I was thinking about making the state
inside the gl context be more similar to ff cache key. This way make_state_key
would be more about copying stuff around than translating it from one
representation to another.

As I don't have commit access, please push the changes after you deem them
ready for that.

Regards,
Gustaw

Gustaw Smolarczyk (3):
  mesa/main: Use correct constant in ff cache key.
  mesa/main: Remove enabled_units from ff cache key.
  mesa/main: Reduce the size of nr_enabled_units in ff cache key.

 src/mesa/main/ff_fragment_shader.cpp | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

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2.12.1