Intel Gen9 GPUs have hardware ASTC support, but have a bug where they
don't handle denormalized values in void extent blocks correctly. This
isn't that hard to work around - on upload, we can detect such blocks,
and flush any denorms to zero. Because we're altering the data behind
the application's back, and applications can theoretically ask to
download the original unaltered image data, we unfortunately need to
maintain shadow copies of the data.
To make sure that we don't accidentally skip the void-extent flushing
via any fast-upload paths, and support download correctly, we plug this
into the st/mesa compressed texture format fallback paths, which store
a CPU copy of the original image data, and upload altered data.
This is unfortunately common code for what's likely to be a single
driver's issue (on a single generation), but it beats replicating an
entire framework we already have inside the driver.
Fixes dEQP-GLES3.functional.texture.compressed.astc.void_extent_ldr.*
using iris on Intel Gen9 GPUs.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/4167
Reviewed-by: Emma Anholt <emma@anholt.net>
Acked-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21943>
We're going to use resource_copy_region to copy from a resource that has
been written to with imageStore. Make it clear that this is safe.
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19827>
this allows drivers to indicate that they support sampling from null
textures instead of using fallback textures
for now, this is only used for depth-based fallback textures
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21072>
With aaa4b0e6 state validation is no longer called for all changed states,
but only for states that will be active with a new shader program.
Not all drivers support this and might prefer if the state validation
is emitted for all states that might be changed. So add a cap that the
driver can signal one or the other preference, and default to the new
behavior.
Fixes: aaa4b0e6
st/mesa: move check_program_state code into _mesa_update_state
v2: - Rename cap and and invert its meaning, query the cap
only once and store it in st, handle the mask update
when updating the shader i.e. not in st_validate_state (Marek)
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20493>
It makes little sense to document the gallium envvars in multiple
places. Let's merge them all into the root envvar document.
This also moves GALLIUM_OVERRIDE_CPU_CAPS to toe root envvars doc, as
it's more generic than just LLVMpipe.
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19593>
These envvars are also documented in the "envvars" document, which is
more prominent. Let's just drop these duplicate definitions to avoid
confusion.
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19593>
The custom envvar directive is strange. It overloads the global
namespace, where there's already a well-known envvar directive, but the
envvar role won't resolve to envvars defined using the custom directive.
It's not really critical to declare the type and default value here, and
many descriptions already include this. Let's just use the plain one,
and let the description take care of the details where needed.
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19593>
This matches what we have in tgsi_strings.c, as well as the non-constant
part of the corresponding enum tgsi_texture_type values.
Reviewed-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19719>
Here's a few redirects that we should apply, in case the redirects
gets removed in the future.
These are mostly of the 301 (moved permanently) kind, but also a
few where the site probably *should* have used the permanent
error-code.
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19574>
There's no GL_NV_gpu_shader4 extension, and the TEX opcode is defined in
NV_gpu_program4. Correct the mistake.
Reviewed-by: Eric Engestrom <eric@igalia.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19594>
We're in 2022 now, and HTTPS is available in a lot more places in the
past. Let's upgrade some links, to protect the privacy of our readers.
The links that are left either don't support HTTPS, or are simply dead
and needs to be updated anyway. That's besides the scope of this
merge-request, so I'm leaving that for someone else.
Reviewed-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19492>
A single backtick escaped string in Sphinx refers to the "default role"
which is vague, and in practice ends up producing the HTML cite-element.
That's almost certainly not what these uses wanted.
A bunch of these would probably be better served using appropriate roles
instead of inline-code markup, but this is almost certainly what was
meant here instead. Let's not let perfect be the enemy of good here, and
just do what was intended. Using the right roles everywhere is a big
task.
I usually don't do changes like these to the relnotes, but in this case
there were a *single* article that had these mistakes. I assume that was
an early bug in the script that generateg the relnotes. Let's patch it,
so we don't get misrendering if we change the default-role.
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19494>
Without this, the zero and one renders with a different font than the
other equations. There's no good reason for this, so let's just use the
math-role for these too.
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19460>
For some reason, we started with headings for some of these, and then
switched to definition lists midway though.
Let's stick with the definition lists, as that looks a bit more tidy.
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19460>
While we're at it, also spell the code-names in allcaps, like NVIDIA
does. One exception is Fermi, which is spelled like a proper noun.
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19297>
We can provide better guidance on when to (un-)set this given that
everyone's on NIR now.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16539>
Kenneth Graunke
Antonio Gomes
Nanley Chery
Mike Blumenkrantz
Gert Wollny
Emma Anholt
Marek Olšák
Erik Faye-Lund
Lionel Landwerlin