7 commits

Author	SHA1	Message	Date
Marcin Ślusarz	c6e4641a21	nir: use nir_shader_instructions_pass in nir_lower_clip_disable ... Changes: - nir_metadata_preserve(..., nir_metadata_block_index | nir_metadata_dominance) is called only when pass makes progress - nir_metadata_preserve(..., nir_metadata_all) is called when pass doesn't make progress Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12282>	2022-09-26 11:13:03 +00:00
Connor Abbott	77fcb01f7f	nir/lower_clip_disable: Fix store writemask ... We're storing into the array element, not the whole variable. Fixes: fb2fe80 ("nir: add lowering pass for clip plane enabling") Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7274>	2021-04-26 17:07:02 +00:00
Mike Blumenkrantz	0b0f152c54	nir/clip_disable: handle 2x vec4 case ... some drivers may have pre-lowered gl_ClipDistance to 2x vec4 to match hw usage, so for those cases we'll be getting deref_var here and then components will be stored to the deref at some point fixes mesa/mesa#3480 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
Mike Blumenkrantz	5e43ba39e1	nir/clip_disable: try for better no-op ... we can just check the bits using clip_distance_array_size here to simplify everything and more easily determine if we need to be running this pass 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
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