antonino
0b65514775
nir/zink: handle provoking vertex mode in nir_create_passthrough_gs
...
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com >
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21238 >
2023-03-29 19:18:40 +00:00
antonino
1a5bdca2dd
zink: implement flat shading using inlined uniforms
...
Zink will now handle flat interpolation correctly when line loops
are generated from primitives.
The flat shading information is passed to the emulation gs using constant
uniforms which get inlined.
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com >
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21238 >
2023-03-29 19:18:40 +00:00
antonino
3b5fb8b060
nir: allow to force line strip out in nir_create_passthrough_gs
...
`nir_create_passthrough_gs` now allows the user to force the generated GS
to always output a line strip from the primitive
regardless of whether edgeflags are present.
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com >
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21238 >
2023-03-29 19:18:40 +00:00
antonino
24535ffb3d
nir: handle edge flags in nir_create_passthrough_gs
...
`nir_create_passthrough_gs` will now take a boolean argument to decide
whether it needs to handle edgeflags.
When true is passed it will output a line strip where edges that
shouldn't be visible are not emitted.
This is usefull because geometry shaders will generally throw away
edgeflags so for a passthrough GS to act transparently it needs to emulate them.
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com >
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21238 >
2023-03-29 19:18:40 +00:00
antonino
a0751e8088
nir: calculate number of vertices in nir_create_passthrough_gs
...
`nir_create_passthrough_gs` has been changed to take the type of primitive
as opposed to the number of vertices as an argument.
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com >
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21238 >
2023-03-29 19:18:40 +00:00
antonino
edecb66b01
nir: avoid generating conflicting output variables
...
Because not all vertex outputs can have corresponding fragment inputs
(eg. edgeflags) some logic is needed to correctly generate variables in
a passthough gs.
Before this change some output variables ened up with the same location.
Fixes: d0342e28b3michael.blumenkrantz@gmail.com >
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21238 >
2023-03-29 19:18:39 +00:00
antonino
ea14579f3d
nir: handle primitives with adjacency
...
`nir_create_passthrough_gs` can now handle primitives with adjacency where some
vertices need to be skipped.
Fixes: d0342e28b3michael.blumenkrantz@gmail.com >
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21238 >
2023-03-29 19:18:39 +00:00
Erik Faye-Lund
d0342e28b3
nir: Add helper to create passthrough GS shader
...
Based on nir_create_passthrough_tcs and d3d12_make_passthrough_gs, this
creates a passthrough geometry shader that can be used by drivers that
needs to emulate some graphics features in the geometry shader.
Reviewed-by: Rob Clark <robclark@freedesktop.org >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19987 >
2022-11-30 08:08:25 +00:00
