Implement the output written by the task *workgroup* and available to
all the mesh *workgroups* dispatched from that task. We currently
ignore any layout annotations (since they are not really testable) and
produce a (packed) layout ourselves.
The URB messages are only SIMD8, so for larger SIMDs, the functions
will produce multiple messages. Making this lowering here instead of
the generic lower_simd_width() since it is not just a matter of
zip/unzip, e.g. the offset must be adjusted.
Indirect writes/reads are implemented by handling one component at a
time and using the PER_SLOT variant of the messages.
Note that VK_NV_mesh_shader allows reading outputs, so add support for
that as well.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13661>
Task/Mesh stages are CS-like stages, and include many
builtins (e.g. workgroup ID/index) and intrinsics (e.g. workgroup
memory primitives) originally present only in CS.
This commit add two new stages (task and mesh) that 'inherit' from CS
by embedding a brw_cs_prog_data in their own prog_data structure, so
that CS functionality can be easily reused. They also currently use
the same helpers to select the SIMD variant to use -- that was
recently added for CS.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13661>
In Fragment Shader, regular inputs are laid out in the thread payload
in a one dword per each half-GRF, that gives room for having the two
delta dwords needed for interpolation.
Per-primitive inputs are laid out before the regular inputs, and since
there's no need to have delta information, they are packed. So
half-GRF will be fully filled with 4 dwords of input.
When num_per_primitive_inputs is zero (the default case), behavior
should be the same as before.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13661>
This extension is controlled by the ESSL feature level. Bump it up since
all parts of OES_gpu_shader5 should be supported.
This also avoids lowering all of the "advanced" functions (which should
probably not be lowered in the first place since they're part of ES
3.1...)
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14035>
Widens the given bit mask by a multiplier, meaning that it will
replicate each bit by that amount.
For example: 0b101 widened by 2 will become: 0b110011
This is typically used in shader I/O to transform a 64-bit
writemask to a 32-bit writemask.
Moving this function here because it is used in multiple places.
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14005>
Even for drivers not supporting layers, we need to include the layer
coordinate (zero in this case) when using array textures in the
download/upload FS.
Otherwise we are missing a component to get the texture, which ends up
in a malformed NIR shader.
v5 (Ilia):
- Do not emit needless layer code.
v6 (Ilia):
- Add comment clarifying the code logic behind.
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13409>
In the V3D driver there is a NIR lowering step for `image_store`
intrinsic, where the image store format is required for doing the proper
lowering.
Thus, let's define it for the download FS instead of
keeping it as NONE.
v2 (Illia)
- Use format only for drivers not supporting format-less writing.
v4 (Illia):
- Use PIPE_CAP_IMAGE_STORE_FORMATTED to reduce combinations.
v5 (Ilia):
- Use indirect array for download FS in not formatless-store support
drivers.
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13409>
On clearing a color buffer, clamp the passed color values to the allowed
ones.
Hardware do clamping for TLB values, but not for clear values.
v2 (Iago)
- Add comment about hardware-based clamping on clear values.
v3 (Iago):
- Use format utils to simplify clamping
- Move clamp color function as utility
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13409>
If PBO require to use a GS, this is created with TGSI.
For drivers preferring NIR shaders, they need to translate it from TGSI
to NIR. But unfortunately TGSI to NIR for GS is not implemented, which
makes it crash.
So let's use a GS only for drivers preferring TGSI.
v3:
- Add comment (Iago and Alejandro)
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13409>
So far we were relying on the supported formats filtering when
creating images from the user API.
But for some other (internal) uses, some of the formats that pass the
filter need to be restricted when binding them as shader images, as they
are not supported for this case.
v3 (Iago):
- Change commit message.
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13409>
From the GL_OES_texture_buffer spec:
"If no buffer object is bound to the buffer texture, the results
of the texel access are undefined."
this can be interpreted as allowing any result to come back, but not
terminate the program.
The current solution is not entirely complete, as it could still try to
get a wrong address for the shader state address.
This can be checked with piglit test
arb_texture_buffer_object-render-no-bo; the test is skip because it
requires OpenGL 3.1, but if overriding the version then it will crash.
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13409>
This commit handles the support for texture buffer objects. In general
it is mostly about using the buffer info from the pipe_image_view
instead of the texture info.
v2:
- Rework some assertions (Iago)
- Remove needless comment (Alejandro)
- Fix comment typos (Iago)
v3:
- Fix typos (Iago)
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13409>
Move all the NIR related debug environmental variables in a single
NIR_DEBUG one.
Use NIR_DEBUG=help to print all the available options.
v2:
- Use a macro to simplify (Marcin, Jason)
- Remove wrong changes (Marcin)
v3 (Marcin):
- Remove rendundant NIR mentioning in option descriptions.
- Unwrap option descriptions.
- Ensure the constant is unsigned.
- Use extern array to remove switch.
v4:
- Add missing kernel shader (Jason).
- Add unlikely() (Marcin).
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13840>
