diff options
| author | Dmitriy Nester <dmitriynester@gmail.com> | 2020-02-27 15:28:50 +0200 |
|---|---|---|
| committer | Marge Bot <eric+marge@anholt.net> | 2020-05-25 19:41:09 +0000 |
| commit | 013df5849897e71f62a0df12691f19f0d56cbdf3 (patch) | |
| tree | 088e763d31e78d6731eedc3142bb10fd326960a0 /src/mesa/drivers | |
| parent | edd62619a1c455226a5bc972b024ea77debecfa5 (diff) | |
i965: replace fnv1a hash function with xxhash
xxhash is faster than fnv1a in almost all circumstances, so we're
switching to it globally.
Signed-off-by: Dmytro Nester <dmytro.nester@globallogic.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4020>
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_program_cache.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_program_cache.c b/src/mesa/drivers/dri/i965/brw_program_cache.c index c1bdaab591c..90999ab0a4f 100644 --- a/src/mesa/drivers/dri/i965/brw_program_cache.c +++ b/src/mesa/drivers/dri/i965/brw_program_cache.c @@ -54,6 +54,8 @@ #include "brw_program.h" #include "compiler/brw_eu.h" #include "util/u_memory.h" +#define XXH_INLINE_ALL +#include "util/xxhash.h" #define FILE_DEBUG_FLAG DEBUG_STATE @@ -96,9 +98,9 @@ brw_stage_cache_id(gl_shader_stage stage) static GLuint hash_key(struct brw_cache_item *item) { - uint32_t hash = _mesa_fnv32_1a_offset_bias; - hash = _mesa_fnv32_1a_accumulate(hash, item->cache_id); - hash = _mesa_fnv32_1a_accumulate_block(hash, item->key, item->key_size); + uint32_t hash = 0; + hash = XXH32(&item->cache_id, sizeof(item->cache_id), hash); + hash = XXH32(item->key, item->key_size, hash); return hash; } |