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266 Commits

Author SHA1 Message Date
Rob Clark
ba7454a155 dri2+gallium: Support to import suboptimal formats 
In some cases a format may be supported in a more limited way by the
hardware.  For example, formats with NPoT pixel sizes.  A driver might
normally prefer that mesa/st use R8G8B8X8 rather than R8G8B8.  But if
the user wants to (dma-buf/etc) import R8G8B8, it is still possible,
and in this case zero copy is more important.

So add a PIPE_BIND_x flag as a hint to the driver when checking if
a format is supported.

Signed-off-by: Rob Clark <rob.clark@oss.qualcomm.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35982>
 2025-07-08 19:05:43 +00:00
Mike Blumenkrantz
d2d98abf1d gallium: add compressed_surface_reinterpret_blocks_layered 
this affects piglit/bin/ext_texture_array-compressed teximage pbo -auto -fbo

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6891

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35612>
 2025-06-20 14:47:25 +00:00
Emma Anholt
211e03d026 gallium: Remove the need for set_clip_state() on !PIPE_CAP_CLIP_PLANES. 
More driver boilerplate we don't need.  We do still have to go through the
transformation in st_atom_clip.c because the clip state can get used in
draw fallbacks.  This revealed that lima had a dirty bit being set that
nobody was reading.

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8953>
 2025-06-19 21:44:55 +00:00
Karol Herbst
9d7441dcb0 gallium: add fixed address resource API 
cl_ext_buffer_device_address requires us to set a fixed address for a
given memory allocation. As this extension is intended to be implemented
on top of vulkan we have to take its limitations into account.

For SVM we'll add proper VM management interfaces, but zink won't be able
to implement those, so here we are.

The old interfaces added back in clover's time were modeled after a very
bindful resource model and the frontend was require to bind all the used
resources ahead of launch_grid.

cl_ext_buffer_device_address and also SVM however will require us to
dynamically attach a list of buffers used in a dispatch with known
addresses, hence set_global_binding isn't really suited for those use
cases.

So PIPE_RESOURCE_FLAG_FIXED_ADDRESS is added to tell a driver that the
address of a resource needs to stay the same over its lifetime, which then
can be queried via pipe_screen::resource_get_address.

All such buffers then can be either bound via set_global_binding or passed
in via pipe_grid_info::globals.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32942>
 2025-05-28 19:21:46 +00:00
Georg Lehmann
96c0e600e3 docs/gallium: remove some nine mentions 
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35147>
 2025-05-26 17:01:04 +00:00
Georg Lehmann
3a42e43e01 gallium: remove tgsi_div pipe cap 
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35147>
 2025-05-26 17:01:04 +00:00
Georg Lehmann
bfeaf78922 gallium: remove polygon_offset_units_unscaled pipe cap 
This was only used by nine.

Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35147>
 2025-05-26 17:01:03 +00:00
Karol Herbst
a990ada276 gallium: remove pipe_context::set_compute_resources and PIPE_BIND_COMPUTE_RESOURCE 
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34623>
 2025-05-01 22:18:27 +02:00
Karol Herbst
97b17e7b42 gallium: remove pipe_compute_caps::max_input_size 
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34623>
 2025-05-01 22:18:23 +02:00
Karol Herbst
76d82f9b2a gallium: remove pipe_compute_caps::max_private_size 
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34623>
 2025-05-01 22:18:19 +02:00
Karol Herbst
44051e6fbd gallium: remove pipe_compute_caps::images_supported 
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34623>
 2025-05-01 22:18:06 +02:00
Karol Herbst
9d73da9155 gallium: remove pipe_compute_caps::ir_target 
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34623>
 2025-05-01 22:18:01 +02:00
Karol Herbst
e5775ac0e0 gallium: remove pipe_compute_caps::max_threads_per_block_clover 
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34623>
 2025-05-01 22:17:38 +02:00
Karol Herbst
2deea42eba gallium: remove pipe_compute_caps::max_block_size_clover 
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34623>
 2025-05-01 22:17:16 +02:00
David Heidelberg
5251c82404 docs: Drop distro unmaintained and deprecated file. 
Pretty much useless.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: David Heidelberg <david@ixit.cz>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32880>
 2025-04-19 15:52:12 +02:00
Mike Blumenkrantz
5844dea316 delete clover 
there comes a time when a project has to be declared unfit to remain
in the tree

this frontend hasn't seen actual development in about 6 years

if someone has a pressing need to continue development, there's no
blocker to un-deleting it, but unless that happens, there's now a
more featureful, more conformant, more active CL frontend in the tree

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19385>
 2025-04-16 10:01:44 -04:00
Qiang Yu
adc51bea28 doc,src: replace doc and comments for shader and compute cap 
Use command:
  find . -type d \( -path "./.git" -o -path "./docs/relnotes" \) -prune -o -type f -exec sed -i 's/PIPE_SHADER_CAP_\([A-Za-z0-9_]*\)/pipe_shader_caps.\L\1/g' {} +
  find . -type d \( -path "./.git" -o -path "./docs/relnotes" \) -prune -o -type f -exec sed -i 's/PIPE_COMPUTE_CAP_\([A-Za-z0-9_]*\)/pipe_compute_caps.\L\1/g' {} +

Also remove value type in pipe_compute_caps doc because they
are explicit in struct now.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33176>
 2025-02-05 11:20:49 +08:00
Qiang Yu
0a5c8853ab gallium,mesa: remove ir_type param when get_compute_param 
We are going to convert compute cap query to struct access,
so remove this param.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33176>
 2025-02-05 11:12:44 +08:00
Qiang Yu
8a6eb7041e gallium,clover: add compute caps used by clover only 
To remove ir_type param when get_compute_param. These caps depend
on IR type and used by clover only (only clover query with
PIPE_SHADER_IR_NATIVE, others query with PIPE_SHADER_IR_NIR).
Only r600 and radeonsi support PIPE_SHADER_IR_NATIVE.

These caps can be removed when clover is deprecated.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33176>
 2025-02-05 11:12:44 +08:00
Qiang Yu
6c95232069 gallium,mesa: remove uint surffix from pipe_caps 
We use explicit type now, no need for these surffix to
indicate the implicit type of the fields.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32955>
 2025-01-17 04:39:47 +00:00
Qiang Yu
e5041ef036 docs,src: replace doc and comments for PIPE_CAP with pipe_caps 
Use command:
  find . -type d \( -path "./.git" -o -path "./docs/relnotes" \) -prune -o -type f -exec sed -i 's/PIPE_CAP_\([A-Za-z0-9_]*\)/pipe_caps.\L\1/g' {} +
  find . -type d \( -path "./.git" -o -path "./docs/relnotes" \) -prune -o -type f -exec sed -i 's/PIPE_CAPF_\([A-Za-z0-9_]*\)/pipe_caps.\L\1/g' {} +

With manual adjustment for docs/gallium/screen.rst to merge
pipe_cap and pipe_capf section.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32955>
 2025-01-17 04:39:47 +00:00
Marek Olšák
7f4e36ff7d gallium: replace PIPE_SHADER_CAP_INDIRECT_INPUT/OUTPUT_ADDR with NIR options 
This is a prerequisite for enabling nir_opt_varyings for all gallium
drivers.

nir_lower_io_passes (called by the GLSL linker) only uses NIR options
to lower indirect IO access before lowering IO and calling
nir_opt_varyings.

Most drivers report full support for indirect IO and lower it themselves,
which prevents compaction of lowered indirectly accessed varyings because
nir_opt_varyings doesn't touch indirect varyings.

Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> (Rb for asahi)
Reviewed-by: Pavel Ondračka <pavel.ondracka@gmail.com> (for r300)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32423>
 2024-12-03 12:57:36 +00:00
Eric Engestrom
d61dc62c59 docs: fix invalid expression in new pipe cap 
Fixes: 89dad5618d ("gallium: add PIPE_CAP_CALL_FINALIZE_NIR_IN_LINKER")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32247>
 2024-11-20 12:54:28 +00:00
Marek Olšák
4da5b11ca9 nir: add nir_io_separate_clip_cull_distance_arrays to replace PIPE_CAP 
to make the flag available in NIR passes

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32173>
 2024-11-19 23:48:38 +00:00
Marek Olšák
89dad5618d gallium: add PIPE_CAP_CALL_FINALIZE_NIR_IN_LINKER 
It's required by the latest IO refactoring.

screen.rst explains it and it's not pretty. It can be argued that
finalize_nir shouldn't exist.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32175>
 2024-11-18 11:25:18 +00:00
Mike Blumenkrantz
d008aaa6da gallium: rework vbuf alignment pipe caps 
this consolidates 4 pipe caps into 1 using an enum

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Neha Bhende <neha.bhende@broadcom.com>

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31482>
 2024-10-07 13:09:59 +00:00
Mike Blumenkrantz
3b99f9bc0e mesa: support OVR_multiview2 
this reuses the same pipe cap to indicate that
both extensions are supported

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31128>
 2024-09-18 13:07:41 +00:00
Mike Blumenkrantz
5c5763f6a8 gallium: add PIPE_CAP_MULTIVIEW 
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31128>
 2024-09-18 13:07:41 +00:00
Daniel Stone
ebd45f0e64 docs/gallium: Fix broken GL extension link 
The :ext: macro doesn't know that astc_ldr is actually defined in the
astc_hdr spec doc.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31111>
 2024-09-12 19:07:44 +00:00
David Rosca
1d71557397 docs: Remove OMX frontend 
Acked-by: Leo Liu <leo.liu@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30865>
 2024-09-09 18:14:49 +00:00
Eric Engestrom
10bc4cc480 docs: Fix linkcheck failures 
This job has been failing for a while. Make it not fail.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31059>
 2024-09-09 12:54:34 +00:00
Qiang Yu
661b9061d4 gallium: add caps for KHR_shader_subgroup 
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30610>
 2024-08-26 10:46:16 +08:00
Louis-Francis Ratté-Boulianne
a4a51f22b1 gallium: add PIPE_CAP_ASTC_DECODE_MODE and expose extension 
mesa will expose GL_EXT_texture_compression_astc_decode_mode
extension if the cap is enabled by the driver.

Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30560>
 2024-08-20 05:36:15 +00:00
Rhys Perry
57080749f7 gallium: remove PIPE_CAP_SHADER_CAN_READ_OUTPUTS 
nir_lower_io_to_temporaries is now done for all stages except TCS, and
nir_lower_io_to_temporaries with a TCS is a no-op.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25590>
 2024-07-10 19:11:38 +00:00
Karol Herbst
0fa4eaf6f6 gallium: add PIPE_CAP_TEXTURE_SAMPLER_INDEPENDENT 
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25362>
 2024-06-26 10:04:02 +00:00
Erik Faye-Lund
96cf3fa355 docs: spell out "stencil reference" 
This is consistent with the wording in the OpenGL spec.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29879>
 2024-06-25 10:51:27 +00:00
Erik Faye-Lund
3f58be056d docs: nabled -> enabled 
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29879>
 2024-06-25 10:51:27 +00:00
Erik Faye-Lund
9967df63df docs: unify spelling of front/back-facing 
We spell these with a dash elsewhere in the docs, let's be consistent.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29879>
 2024-06-25 10:51:27 +00:00
Erik Faye-Lund
e2d94263d5 docs: mooth -> smooth 
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29879>
 2024-06-25 10:51:27 +00:00
Erik Faye-Lund
897e9d806f docs: tgsi -> TGSI 
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29879>
 2024-06-25 10:51:26 +00:00
Erik Faye-Lund
f7ed909761 docs: edgeflag -> edge flag 
This is how we usually spell it, and also how the OpenGL specification
spells it. Let's be consistent.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29879>
 2024-06-25 10:51:26 +00:00
Mike Blumenkrantz
2e5d49b3dd gallium: delete PIPE_CAP_NIR_COMPACT_ARRAYS 
this is now nir_shader_compiler_options::compact_arrays

Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28601>
 2024-04-12 18:43:48 +00:00
Eric Engestrom
13b88747d4 docs: fix inline c identifier reference -> inline code 
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28499>
 2024-04-01 21:18:37 +00:00
Antonio Gomes
12f1a4c311 gallium: Add new PIPE_CAP_CL_GL_SHARING 
We have a situation where some drivers have all the required features,
but they are not working with gl_sharing, so we end up advertising it
wrongly. Add this cap to ensure this driver was tested to work with
cl_khr_gl_sharing.

Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26071>
 2024-02-23 13:29:00 +00:00
Timothy Arceri
1098afd7fb gallium: add PIPE_CAP_FP16 for AMD_gpu_shader_half_float 
Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18540>
 2024-02-12 13:23:14 +00:00
Eric Engestrom
eb505979ba docs: fix syntax highlighting on non-code text snippet 
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27010>
 2024-01-12 08:13:39 +00:00
Marek Olšák
7a7285bc69 gallium: add PIPE_CAP_PERFORMANCE_MONITOR for GL_AMD_performance_monitor 
Use a CAP instead of guessing it. radeonsi won't expose it.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26262>
 2023-11-28 17:34:26 +00:00
Marek Olšák
6073a149b9 gallium/docs: make CAP doc order match definition order 
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26262>
 2023-11-28 17:34:26 +00:00
Erik Faye-Lund
a08d33abff docs: apply permanent redirect 
The HTTP URL now redirects to the HTTPS URL, so let's update our link.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26222>
 2023-11-16 20:30:08 +00:00
Eric Anholt
aed6a39c10 glsl: Retire dround lowering. 
We have competent lowering in NIR already available.

Drivers exposing CAP_DOUBLES but not SHADER_CAP_DROUND:
- d3d12 (NIR lowers ~0 if the underlying impl doesn't do floats)
- svga (Now sets the NIR lowering options)
- softpipe (Doesn't do GL4 so you can't use doubles anyway)
- llvmpipe (Lowers dround_even in NIR and passees the rest through
            successfully)
- zink (NIR lowers ~0 if the underlying impl doesn't do floats,
        otherwise passes things through successfully, except needed
        dround_even lowering to avoid lavapipe regression with
        native doubles)
- r600 (sets NIR rounding lowering flags, and lowers all fsign)

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25777>
 2023-10-24 00:16:30 +00:00