This renames BLEND_STATE to BLEND_STATE_ENTRY and adds an new struct
BLEND_STATE which is just an array of 8 BLEND_STATE_ENTRYs. This will make
it much easier to write gen-agnostic blend handling code.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>