mesa/src/imagination
Simon McVittie b860ae309a vulkan: Optionally share one JSON manifest per driver between architectures
If the library_path is just a basename like `libvulkan_lvp.so`, then we
can share the same JSON manifest like `lvp_icd.json` between all of the
architectures, like we already do for Vulkan layers. The library will
be looked up in the dynamic linker's default search path in this case,
and in practice will be found in `${libdir}`. This is how the Mesa's
EGL driver and Vulkan layers work, how Mesa is packaged in Debian 13,
and also how the Nvidia proprietary driver works; it makes installation
simpler for distros, especially on multiarch systems like Debian and
the freedesktop.org SDK.

However, if we want a separate manifest per architecture in order to
be able to write the full path into it, we still need per-architecture
filename disambiguation like `lvp_icd.x86_64.json`.

We presumably still want a separate per architecture on Windows, because
the concept of a single monolithic `${libdir}` is less common there, and
it can also be helpful during development when setting `$VK_DRIVER_FILES`
to force the use of a specific driver installed in a non-default location.

Use the following parameter to passed to vk_icd_gen:
'--icd-lib-path', vulkan_icd_lib_path,
'--icd-filename', icd_file_name,
output : 'virtio_icd.' + vulkan_manifest_suffix,

and the output is passed by '--out', '@OUTPUT@',
so we can detect vulkan_manifest_per_architecture from the --out parameter in script.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/13745
Signed-off-by: Simon McVittie <smcv@collabora.com>
Co-authored-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37314>
2025-11-24 19:05:57 +00:00
..
common pvr: store has_pbe_stride_align_1pixel in pvr_device_features 2025-11-17 16:04:31 +00:00
csbgen pvr: store has_pbe_stride_align_1pixel in pvr_device_features 2025-11-17 16:04:31 +00:00
include pvr: move non-rogue helpers to pvr_hw_utils.h 2025-11-11 10:13:14 +01:00
pco nir: rename nir_lower_indirect_derefs -> nir_lower_indirect_derefs_to_if_else_trees 2025-11-20 05:42:11 +00:00
vulkan vulkan: Optionally share one JSON manifest per driver between architectures 2025-11-24 19:05:57 +00:00
.clang-format pvr: remove unused macros 2025-11-11 10:13:11 +01:00
.dir-locals.el
.editorconfig pvr: Change indentation from tab to spaces for xml files. 2022-08-31 08:26:17 +00:00
meson.build pvr: drop legacy rogue compiler 2025-09-16 18:26:10 +00:00