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It is included through the util/hash_table include in
the program hash_table, so this should be safe.
This will be needed when we start converting each use of
the program_hash_table, as some places need this function.
Signed-off-by: Thomas Helland <thomashelland90@gmail.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
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src/util/hash_table.h:111:23: warning: ‘_mesa_fnv32_1a_offset_bias’ defined but not used [-Wunused-const-variable]
static const uint32_t _mesa_fnv32_1a_offset_bias = 2166136261u;
^~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
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v4: coding style change (Matt Turner)
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> (v3)
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We already have search_pre_hashed. This makes the APIs match better.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
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This way the basics of the FNV-1a hash can be reused to easily create other
hashing functions.
Reviewed-by: Eric Anholt <eric@anholt.net>
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Previously, the hash_table API required the user to do all of the hashing
of keys as it passed them in. Since the hashing function is intrinsically
tied to the comparison function, it makes sense for the hash table to know
about it. Also, it makes for a somewhat clumsy API as the user is
constantly calling hashing functions many of which have long names. This
is especially bad when the standard call looks something like
_mesa_hash_table_insert(ht, _mesa_pointer_hash(key), key, data);
In the above case, there is no reason why the hash table shouldn't do the
hashing for you. We leave the option for you to do your own hashing if
it's more efficient, but it's no longer needed. Also, if you do do your
own hashing, the hash table will assert that your hash matches what it
expects out of the hashing function. This should make it harder to mess up
your hashing.
v2: change to call the old entrypoint "pre_hashed" rather than
"with_hash", like cworth's equivalent change upstream (change by
anholt, acked-in-general by Jason).
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
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Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
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This gathers macros that have been included across components into util so
that the include chain can be more vertical. In particular, this makes
util stand on its own without any dependence whatsoever on the rest of
mesa.
Signed-off-by: "Jason Ekstrand" <jason.ekstrand@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
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This hash table is used in core Mesa, the GLSL compiler, and the i965
driver, which makes it a good candidate for the new src/util module.
It's much faster than program/hash_table.[ch] (see commit 6991c2922f5
for data), and José's u_hash_table.c has a comment saying Gallium should
probably consider switching to a linear probing hash table at some point.
So this seems like the best candidate for a shared data structure.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
v2 (Jason Ekstrand): Pick up another hash_table use and patch up scons
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
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