When the MESA_DISK_CACHE_SINGLE_FILE environment variable is set
we make use of the new single file shader cache implementation.
The new cache uses the following directory structure based on the
first defined name as follows:
$MESA_GLSL_CACHE_DIR/driver_id/gpu_name/foz_cache.foz
$MESA_GLSL_CACHE_DIR/driver_id/gpu_name/foz_cache_idx.foz
$XDG_CACHE_HOME/mesa_shader_cache_sf/driver_id/gpu_name/foz_cache.foz
$XDG_CACHE_HOME/mesa_shader_cache_sf/driver_id/gpu_name/foz_cache_idx.foz
<pwd.pw_dir>/.cache/mesa_shader_cache_sf/driver_id/gpu_name/foz_cache.foz
<pwd.pw_dir>/.cache/mesa_shader_cache_sf/driver_id/gpu_name/foz_cache_idx.foz
Where foz_cache_idx.foz is a database of offsets pointing to the location of
the shader cache entries in foz_cache.foz
This initial implementation doesn't have any max cache size handling and is
initially intended to be use by applications such as steam that will handle
cache management for us.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7725>
This will be faster and avoids checking for errors with the
compression implementation which we shouldn't need to do. Instead
we trust the compression library does the correct thing and simply
error check the data loaded from disk.
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7725>
This should be helpful if someone chooses to implement cache support on
windows. Also providing this greater level of abstraction makes it easier
to implement alterative cache layouts in future.
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6197>
This pulls out the cache item writing code from cache_put() into
a new helper. In this patch we also move various functions called
by this code into the new disk_cache_os.c file.
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6197>
This will make windows support easier to add in future. To avoid code
churn this temporarily duplicates the mkdir_if_needed() function, we
will delete the duplicate in a following patch.
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6197>
Timothy Arceri