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3 commits

Author SHA1 Message Date
Mike Blumenkrantz
1d23a88c6e nir/clip_disable: write 0s instead of undefs for disabled clip planes 
this should yield more reliable and ideally even correct results

Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6563>
 2020-11-05 21:32:27 +00:00
Jason Ekstrand
2956d53400 nir: Add nir_foreach_shader_in/out_variable helpers 
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5966>
 2020-07-29 17:38:57 +00:00
Mike Blumenkrantz
fb2fe802f6 nir: add lowering pass for clip plane enabling 
a pass which rewrites gl_ClipDistance[n] to an undef if the corresponding
clip plane is disabled in the rasterizer state

this pass is needed for zink to handle api disables of clip planes

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5529>
 2020-07-03 08:56:30 +00:00