The OpenGL specification requires that seamless cube maps ignore the wrap mode,
but some hardware may try to respect the wrap mode even for seamless cubes
contrary to the spec. Since OpenGL maps samplers 1:1 to textures (at least
without bindless texture support...), it's easy to override the wrap mode for
seamless cubes to something that works for the hardware.
I'm not sure if there is value in gating this behaviour behind a CAP. On one
hand, there is a tiny bit of extra CPU overhead added to change samplers. On the
other hand, normalizing wrap modes might improve CSO caching, and normalizing to
a non-BORDER mode avoids the expensive border colour code later in the function.
We will need a different workaround in our Vulkan driver. Potentially, we'll
have to duplicate *every* sampler to have a cubemap version and a non-cubemap
version, selecting a sampler in the shader based on the texture opcode. That
sucks and implementing it would depend on subtle details of how we implement
descriptor sets, so it's not like we would share that code with the GL driver
anyway. In the mean time, let's get this right for GL without the performance
hit of duplication.
Fixes dEQP-GLES3.functional.texture.filtering.cube.* on Asahi, as well as a
smattering of dEQP-GLES31.functional.texture.filtering.cube_array.* fails on
softpipe.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21978>
6148e3aae7 ("mesa: Fix ctx->Texture.CubeMapSeamless") introduced a hack, where
seamless cube maps would be requested even for GLES2 contexts despite the spec,
on the assumption that GLES2 gallium drivers would ignore the bit. But that
requires Gallium drivers to know what GLES version they advertise, which is a
horrible layering violation. When the commit was written 8 years ago, there were
classic drivers to contend with so it made sense as a fix to get GLES 3.0 up and
running. With classic drivers gone, it's time to sunset the hack and restore the
intended behaviour by setting ctx->Texture.CubeMapSeamless only once we know the
version.
In addition to fixing a semantic issue in the Gallium contract and preventing a
regression from the next commit, this fixes cube maps on Mali-T720 under
Panfrost. In general, Panfrost supports GLES3 (and honours the seamless flag
everywhere) but on T720 we only advertise GLES2 due to missing MRT support on
older Midgard devices, so we need the flag set properly to distinguish these
cases.
Cc: mesa-stable
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21978>
A future platform requires that mesh shader URB space be allocated
before task shader URB space.
If task shader is enabled, it will align the mesh shader URB size to
8Kb and give the remaning back to task shader. Otherwise, no aligment
is needed, and mesh shader will have all the URB space.
BSpec: 56229, 56230
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21603>
When this debug flag is set, the driver sets the umd metadata for
all color textures and enables the use of extended metadata.
Extended metadata allows umr to import textures and setting these
on all color texture allows to import non-exported textures
(eg: dGPU draw surface when DRI_PRIME=1 is used).
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21984>
Update the metadata format. For gfx8- chips nothing change.
For gfx9 chips:
* for textures without a valid modifier a dw is added at index=10
containing the stride
* for textures with a valid modifier the modifier is stored at
index 10 and 11. Then the number of planes is stored at 12.
Then for each plane the offset and the stride are stored.
The goal here is to be able to create textures from dmabuf from
umr - without these changes this is impossible because these
values can't be guessed.
The new layout is compatible with version=1 so old/new UMD can
be used together without issues and isn't used by default.
For radeonsi, it will be possible to use it with a AMD_DEBUG=...
option.
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21984>
Shader info is needed for mesh in linking (in nir_lower_io_to_scalar_early,
see commit 5e144454) and will be needed once MR !17622 (anv: work around
for per-prim attributes corruption) lands.
We still need to call nir_shader_gather_info in anv_pipeline_lower_nir,
because the information got stale between anv_graphics_pipeline_load_nir
and anv_pipeline_lower_nir. Some examples:
- some FS inputs were marked as per-primitive during linking
(brw_nir_link_shaders) affecting per_primitive_inputs mask
- some inputs and outputs were removed, because they are not used
(nir_remove_unused_varyings) affecting outputs_written and inputs_read
This fixes func.mesh.ext.outputs.per_primitive.unused crucible test on DG2.
(I didn't know this test wasn't fixed by 5e144454, because I was testing
with !17622 merged-in, which added its own nir_shader_gather_info before
nir_lower_io_to_scalar_early).
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21787>
Also drop my email address in the copyright lines and fix some "Copyright 208
Alyssa Rosenzweig" lines, I'm not *that* old. Together this drops a lot of
boilerplate without losing any meaningful licensing information. SPDX is already
in use for the MIT-licensed code in turnip, venus, and a few other scattered
parts of the tree, so this should be ok from a Mesa licensing standpoint.
This reduces friction to create new files, by parsing the copy/paste boilerplate
and being short enough you can easily type it out if you want. It makes new
files seem less daunting: 20 lines of header for 30 lines of code is
discouraging, but 2 lines of header for 30 lines of code is reasonable for a
simple compiler pass. This has technical effects, as lowering the barrier to
making new files should encourage people to split code into more modular files
with (hopefully positive) effects on project compile time.
This helps with consistency between files. Across the tree we have at least a
half dozen variants of the MIT license text (probably more), plus code that uses
SPDX headers instead. I've already been using SPDX headers in Asahi manually, so
you can tell old vs new code based on the headers.
Finally, it means less for reviewers to scroll through adding files. Minimal
actual cognitive burden for reviewers thanks to banner blindness, but the big
headers still bloat diffs that add/delete files.
I originally proposed this in December (for much more of the tree) but someone
requested I wait until January to discuss. I've been trying to get in touch with
them since then. It is now almost April and, with still no response, I'd like to
press forward with this. So with a joint sign-off from the major authors of the
code in question, let's do this.
Signed-off-by: Asahi Lina <lina@asahilina.net>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Emma Anholt <emma@anholt.net>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Rose Hudson <rose@krx.sh>
Acked-by: Lyude Paul [over IRC: "yes I'm fine with that"]
Meh'd-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22062>
