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* util: fix new gcc6 warningsRob Clark2016-02-181-1/+3
| | | | | | | | | 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 <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* util/hash_table: add _mesa_hash_table_num_entriesNicolai Hähnle2016-02-031-0/+5
| | | | Reviewed-by: Marek Olšák <[email protected]>
* util/hash_table: add _mesa_hash_table_clear (v4)Nicolai Hähnle2016-02-031-0/+2
| | | | | | v4: coding style change (Matt Turner) Reviewed-by: Ian Romanick <[email protected]> (v3)
* hash_table: Rename insert_with_hash to insert_pre_hashedJason Ekstrand2015-01-151-2/+2
| | | | | | | We already have search_pre_hashed. This makes the APIs match better. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* util/hash_table: Pull the details of the FNV-1a into helpersJason Ekstrand2015-01-151-0/+19
| | | | | | | This way the basics of the FNV-1a hash can be reused to easily create other hashing functions. Reviewed-by: Eric Anholt <[email protected]>
* util/hash_table: Rework the API to know about hashingJason Ekstrand2014-12-141-4/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Eric Anholt <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* util: include c99_compat.h in hash_table.h to get 'inline' definitionBrian Paul2014-08-041-0/+1
| | | | Reviewed-by: Jason Ekstrand <[email protected]>
* util: Gather some common macrosJason Ekstrand2014-08-041-2/+2
| | | | | | | | | | 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" <[email protected]> Reviewed-by: Marek Olšák <[email protected]>
* util: Move the open-addressing linear-probing hash_table to src/util.Kenneth Graunke2014-08-041-0/+106
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 <[email protected]> v2 (Jason Ekstrand): Pick up another hash_table use and patch up scons Signed-off-by: Jason Ekstrand <[email protected]> Reviewed-by: Marek Olšák <[email protected]>