[Mesa-dev] [RFC PATCH] gallium/nir: Add shader-based blending helpers

[Eric Anholt]

Alyssa Rosenzweig <alyssa at rosenzweig.io> writes:

>> I would love to see this up in src/compiler/nir.
>
> Is there a compelling reason to have it in NIR rather in Gallium, adding
> an extra layer of translation overhead / indirection when coming from
> Gallium blend state? (Mythical future Vulkan support, I guess?)

Exactly.  Also I think we had some reason for using it on i965,
somewhere.
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