[Mesa-dev] [PATCH 0/6][RFC] glsl: Expand opt_minmax get_range
mattst88 at gmail.com
Thu Oct 30 11:26:35 PDT 2014
On Thu, Oct 30, 2014 at 10:57 AM, Thomas Helland
<thomashelland90 at gmail.com> wrote:
> Are the affected shaders from some commercial game that I might
> have in my steam-collection? Would be nice to extract a real-life
> shader that experiences this not-so-good behavior.
Games with improvements:
- Planeshift (one shader)
- Dungeon Defenders (three shaders)
- Guacamelee (two shaders)
Games with shaders hurt:
- Civ 5, Stacking, Metro Last Light, Brutal Legend, The Cave, XCOM
Enemy Unknown, Guacamelee, Natural Selection 2
> I could try putting the saturate generation before this pass and write
> some shaders that exercise the regression we see here.
> Since freedreno implements saturates with min/max we should
> probably allow for splitting up saturates.
> Maybe we could add an "emitSaturate" option so that we can split
> up saturates if the backend does not support it?
> That way we can do what's best for each backend.
Yes, see the EmitNo* members of gl_shader_compiler_options in
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