Commit graph

384 commits

Author SHA1 Message Date
Alyssa Rosenzweig
465b138f01 treewide: Use nir_shader_intrinsic_pass sometimes
This converts a lot of trivial passes. Nice boilerplate deletion. Via Coccinelle
patch (with a small manual fix-up for panfrost where coccinelle got confused by
genxml + ninja clang-format squashed in, and for Zink because my semantic patch
was slightly buggy).

    @def@
    typedef bool;
    typedef nir_builder;
    typedef nir_instr;
    typedef nir_def;
    identifier fn, instr, intr, x, builder, data;
    @@

    static fn(nir_builder* builder,
    -nir_instr *instr,
    +nir_intrinsic_instr *intr,
    ...)
    {
    (
    -   if (instr->type != nir_instr_type_intrinsic)
    -      return false;
    -   nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
    |
    -   nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
    -   if (instr->type != nir_instr_type_intrinsic)
    -      return false;
    )

    <...
    (
    -instr->x
    +intr->instr.x
    |
    -instr
    +&intr->instr
    )
    ...>

    }

    @pass depends on def@
    identifier def.fn;
    expression shader, progress;
    @@

    (
    -nir_shader_instructions_pass(shader, fn,
    +nir_shader_intrinsics_pass(shader, fn,
    ...)
    |
    -NIR_PASS_V(shader, nir_shader_instructions_pass, fn,
    +NIR_PASS_V(shader, nir_shader_intrinsics_pass, fn,
    ...)
    |
    -NIR_PASS(progress, shader, nir_shader_instructions_pass, fn,
    +NIR_PASS(progress, shader, nir_shader_intrinsics_pass, fn,
    ...)
    )

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24852>
2023-08-24 15:48:02 +00:00
Alyssa Rosenzweig
1d77fb967d nir,asahi: Remove texture_base_agx
Doing a descriptor crawl with binding tables requires a real binding table in
the shader, which won't work for VK or merged shader stages in GL. Instead,
let's lower anything that needs a crawl to bindless in the driver, so the
compiler code doesn't need to know anything about descriptor binding models.
That gets rid of the texture_base_agx sysval, which is problematic when there
are multiple descriptor sets worth of textures.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24847>
2023-08-23 15:06:55 +00:00
Alyssa Rosenzweig
6e1bdc1291 asahi: Add missing LOD source for agx_meta's txfs
These would be inserted by nir_lower_tex anyway, but we shouldn't be relying on
that behaviour for the meta shaders when we can just create the correct thing
from the start.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24847>
2023-08-23 15:06:55 +00:00
Alyssa Rosenzweig
a51c3f638b asahi: Pass layer stride in pixels, not elements
We do all the math in pixels and only multiply by the sample count at the end,
meaning the layer stride needs to be in terms of pixels (not samples) for
correct addressing of multisample array images in our texture lowering. This is
particularly used for lowering the multisample array stores we get from eMRT
with multisampled layered framebuffers.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24847>
2023-08-23 15:06:55 +00:00
Alyssa Rosenzweig
5b3f4cf6f8 asahi/decode: Turn assert into error
To allow us to debug broken fetches.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24847>
2023-08-23 15:06:55 +00:00
Alyssa Rosenzweig
4dcfb681bc agx/lower_vbo: Handle nonzero component
Fixes dEQP-VK.glsl.440.linkage.varying.component.vert_in.vec2.as_float_float

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24847>
2023-08-23 15:06:54 +00:00
Faith Ekstrand
de063a1481 nir: Drop most uses of nir_instr_rewrite_src_ssa()
Generated with the following semantic patch:

    @@
    expression I, S, D;
    @@

    -nir_instr_rewrite_src_ssa(I, S, D);
    +nir_src_rewrite(S, D);

Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24729>
2023-08-18 01:00:15 +00:00
Faith Ekstrand
4695bebc79 nir: Drop nir_dest
Instead, we replace every use of it with nir_def.  Most of this commit
was generated by sed:

   sed -i -e 's/dest.ssa/def/g' src/**/*.h src/**/*.c src/**/*.cpp

A few manual fixups were required in lima and the nir_legacy code.

Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24674>
2023-08-14 21:22:53 +00:00
Faith Ekstrand
80a1836d8b nir: Get rid of nir_dest_bit_size()
We could add a nir_def_bit_size() helper but we use ->bit_size about 3x
as often as nir_dest_bit_size() today so that's a major Coccinelle
refactor anyway and this doesn't make it much worse.  Most of this
commit was generated byt the following semantic patch:

    @@
    expression D;
    @@

    <...
    -nir_dest_bit_size(D)
    +D.ssa.bit_size
    ...

Some manual fixup was needed, especially in cpp files where Coccinelle
tends to give up the moment it sees any interesting C++.

Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24674>
2023-08-14 21:22:53 +00:00
Mike Blumenkrantz
7672545223 gallium: move vertex stride to CSO
this simplifies code in most place and enables some optimizations in
frontends

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24117>
2023-08-14 01:23:25 +00:00
Faith Ekstrand
ed9affa02f nir: Drop most instances of nir_ssa_dest_init()
Generated using the following two semantic patches:

    @@
    expression I, J, NC, BS;
    @@

    -nir_ssa_dest_init(I, &J->dest, NC, BS);
    +nir_def_init(I, &J->dest.ssa, NC, BS);

    @@
    expression I, J, NC, BS;
    @@

    -nir_ssa_dest_init(I, &J->dest.dest, NC, BS);
    +nir_def_init(I, &J->dest.dest.ssa, NC, BS);

Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24658>
2023-08-13 17:12:52 +00:00
Alyssa Rosenzweig
09d31922de nir: Drop "SSA" from NIR language
Everything is SSA now.

   sed -e 's/nir_ssa_def/nir_def/g' \
       -e 's/nir_ssa_undef/nir_undef/g' \
       -e 's/nir_ssa_scalar/nir_scalar/g' \
       -e 's/nir_src_rewrite_ssa/nir_src_rewrite/g' \
       -e 's/nir_gather_ssa_types/nir_gather_types/g' \
       -i $(git grep -l nir | grep -v relnotes)

   git mv src/compiler/nir/nir_gather_ssa_types.c \
          src/compiler/nir/nir_gather_types.c

   ninja -C build/ clang-format
   cd src/compiler/nir && find *.c *.h -type f -exec clang-format -i \{} \;

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Acked-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24585>
2023-08-12 16:44:41 -04:00
Alyssa Rosenzweig
c252120239 agx: Fix shader info with sample mask writes
Otherwise the discard_agx isn't lowered.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24635>
2023-08-11 20:31:27 +00:00
Alyssa Rosenzweig
3e5d2f0c1b asahi,agx: Respect no16 even for I/O
Don't call lower_mediump_io for no16. This is helpful for debugging and soon
driconf-shaming apps with broken precision qualifiers.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24635>
2023-08-11 20:31:27 +00:00
Asahi Lina
f8f4f466f7 asahi: Fix race in BO stats accounting
These counters are accessed without locking, so they need to be atomic.
Should be cosmetic only.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24635>
2023-08-11 20:31:27 +00:00
Asahi Lina
9762c55589 asahi: Do not overallocate BOs by more than 2x
This is not likely to be useful, and might take over a correctly-sized
BO that is going to be reused later.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24635>
2023-08-11 20:31:27 +00:00
Asahi Lina
175e02baed asahi: Add a noshadow debug flag
This lets us trivially test whether resource shadowing helps or hurts
any given workload.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24635>
2023-08-11 20:31:27 +00:00
Alyssa Rosenzweig
aeac45c188 asahi: Move a bunch of helpers to common
These have no real Vulkan or Gallium dependence and are (as such) useful for
both VK and GL without any real change in level of abstraction. Do the code
motion.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24635>
2023-08-11 20:31:27 +00:00
Alyssa Rosenzweig
e5f76821f1 asahi: Stub num_dies
We'll use it in the upstreamable driver portion soon.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24635>
2023-08-11 20:31:27 +00:00
Alyssa Rosenzweig
e890bb0e75 asahi: Don't depend on glibc to decode
fopencookie is a glibc feature, so we can't use it on macOS (and
probably other libc's?). It's only used for the hypervisor interface,
though, so we can just make the hypervisor piece glibc-only while
otherwise fixing the wrap.dylib build.

Fixes: ee83453f69 ("asahi: Add a shared library interface for decode")
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24293>
2023-07-22 12:42:58 -04:00
Eric Engestrom
f997d32f9f asahi: drop unused include paths
Signed-off-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24287>
2023-07-22 10:10:03 +00:00
Alyssa Rosenzweig
9fbe2fdea0 asahi: Offset clear colour uniform by 4
Frees up u0_u1 for a bindless base address which will make render target
spilling easier to implement.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:29 +00:00
Alyssa Rosenzweig
ef5a5e170f asahi: Permit meta shaders to use preambles
Preambles are occassionally useful with background programs.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:29 +00:00
Alyssa Rosenzweig
ff16397912 asahi: Lower tilebuffer access for spilled RTs
Conceptually similar, we just don't have the tilebuffer available this time.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Alyssa Rosenzweig
66e8afe7c9 asahi: Extract some tilebuffer lowering code
In prep for spilling. No functional change.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Alyssa Rosenzweig
dc38f24de3 asahi: Ignore spilled render targets in EOT shaders
Regardless whether we implement Apple-style eMRT or something simpler, the EOT
shader isn't involved here.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Alyssa Rosenzweig
73fb1543fd asahi: Do not support masking with spilled RTs
Extra complexity for this interaction, not worth it until we have an actual use
case IMHO.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Alyssa Rosenzweig
fa0e671b7b asahi: Add agx_tilebuffer_spills query
We can skip various work in the driver if we're not spilling render targets.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Alyssa Rosenzweig
6bc42054d1 asahi: Introduce concept of spilled render targets
To accommodate framebuffers which exceed tilebuffer limits, we'll need to spill
render targets to main memory. In effect, we need to emulate an immediate-mode
renderer for some render targets. This decision is made on a per-render target
basis. In our tilebuffer layout calculation, rather than asserting that all
render targets fit, introduce a notion of spilling.

This doesn't actually implement spilling -- it just pushes the assert failure
down to the users. But it's progress.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Alyssa Rosenzweig
02b1ddeca6 asahi,agx: Fix txf sampler
Bizarrely, the clamps/wrap modes are respected so we need to set them
appropriately for correct out-of-bounds behaviour (returning all zero). That in
turn means we can't use whatever sampler is already there, instead we need to
allocate a dedicated sampler just for txf. Good news is we have an extra sampler
state register available for the purpose.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Alyssa Rosenzweig
a77facd459 asahi: Augment PBE descriptor for software access
For implementing image atomics (and multisample image writes), we need
information about the image layout in the shader. It's a lot nicer to determine
the image layouts on the CPU (where we have ail) and stash the results in the
PBE descriptor, where we have a convenient hole to do so, rather than trying to
do all the layout calculations on the GPU on the fly. Add a data structure that
the driver will fill out and the image atomic lowering will consider as part of
the hardware.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Asahi Lina
ee83453f69 asahi: Add a shared library interface for decode
Add a simple API so that decode can be used as a shared library by the
Python hypervisor. Note that this is not thread-safe. If we ever want to
use this in other contexts with thread safety, it will need a refactor
(along with the core decode code anyway).

Signed-off-by: Asahi Lina <lina@asahilina.net>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Asahi Lina
55d363e02e asahi: decode: Add a function to construct decode_params from a chip_id
Should be useful on macOS later to properly support detecting the right
GPU, but for now just hardcode T8103/G13G.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Asahi Lina
56d5db247a asahi: decode: Refactor to always copy GPU mem to local buffers
We want to plug this library into the hypervisor, but there we don't
have all GPU memory already mapped in our address space. Refactor the
GPU mem read function to always allocate local buffers and copy in the
data there.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Asahi Lina
2c2858c2af asahi: wrap: Handle freeing shmems
Needed for some Metal demos that end up creating multiple queues.

This is still definitely broken/not fully correct, but it at least
gets things working for those.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Asahi Lina
0dc819f284 asahi: Add extra CDM header block for G14X
Looks like we finally found our first properly divergent codepath.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Asahi Lina
69e91527d3 asahi: decode: Add a params argument to pass through
Sooner or later we were going to need divergent codepaths in decode, and
it looks like now is the time. Add a `params` typedef and pass it
through all the decoder callbacks. This is an alias for
drm_asahi_params_global, but use a typedef so we can change that later
without changing dozens of instances.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Alyssa Rosenzweig
de1174791d agx: Fix bogus assert
Dolphin uses all the uniforms.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:28 +00:00
Janne Grunau
f66fc18886 asahi: toggle more barrier bits after transform feedback
Fixes KHR-GLES31.core.draw_indirect.advanced-twoPass-transformFeedback-arrays
and KHR-GLES31.core.draw_indirect.advanced-twoPass-transformFeedback-elements
on M1 Ultra (G13D). Let's assume that same bits are required on M1 Pro
and Max.

Signed-off-by: Janne Grunau <j@jannau.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:27 +00:00
Alyssa Rosenzweig
58d43ca03c asahi: Identify background/EOT counts
Similar to the counts for VDM/PDM/CDM.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:27 +00:00
Asahi Lina
0e08923a7b asahi: Add nomsaa debug flag
This forces off MSAA, which together with smalltile mode helps test more
combinations.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:27 +00:00
Asahi Lina
e9b2f02c2f asahi: Add smalltile debug option
This lets us force small tiles when they otherwise would not be
necessary, which is useful for decoupling tile size and the logic that
depends on it from things like MSAA and MRT which can trigger small
tiles.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:27 +00:00
Asahi Lina
35715db30d asahi: Add synctvb debug flag
This requests synchronous TVB growth (instead of split renders). Mostly
for testing at this point.

Only works with newer kernels and the kernel will complain on dmesg for
now.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:27 +00:00
Alyssa Rosenzweig
85c829d64f asahi: Remove unused #define
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:27 +00:00
Alyssa Rosenzweig
f10d51541d asahi: Use nir_builder_at more
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:27 +00:00
Alyssa Rosenzweig
c20c9f06d3 asahi: Augment fake drm_asahi_params_global
Stub out a bit more UAPI so we can build with the additions in this patch
series.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24258>
2023-07-20 15:33:27 +00:00
Alyssa Rosenzweig
a28f9738e1 asahi: Use txf_ms for MSAA background programs
Fixes regression in assorted dEQP tests including:

dEQP-EGL.functional.color_clears.multi_context.gles3.rgba8888_window

Fixes: d4424950ac ("asahi: Use txf for background program")
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23998>
2023-07-05 05:11:49 +00:00
Asahi Lina
90834353a1 asahi: Gather flat/linear shaded input info from uncompiled FS
We need to propagate shading model metadata from the FS to the VS in
order to correctly lay out the uniforms in the right order. This means
we need VS variants depending on this data.

We could use the existing shader info structure, but that applies to
compiled shaders which would introduce a dependency from the VS compile
to the FS compile. This information does not change with FS variants, so
we can introduce an agx_uncompiled_shader_info structure and gather it
early at precompilation time.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23998>
2023-07-05 05:11:49 +00:00
Asahi Lina
49994dc8cb asahi: Identify the separate varying count fields
Flat/goraud/linear and 32/16 need to be specified separately. This
change identifies the new fields but should be a functional no-op.

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23998>
2023-07-05 05:11:49 +00:00
Alyssa Rosenzweig
b57faede71 asahi: Identify PBE::sRGB flag
Needed to write out sRGB images correctly.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23998>
2023-07-05 05:11:49 +00:00