_mesa_delete_program_cache _mesa_new_program_cache _mesa_program_cache_insert _mesa_search_program_cache clear_cache hash_key rehash

static GLuint hash_key ( const void *  key, GLuint  key_size  ) [static] Compute hash index from state key. Definition at line 56 of file prog_cache.c. Referenced by _mesa_program_cache_insert(), _mesa_search_program_cache(), ctl2_alloc_guid(), and ctl2_find_guid(). { const GLuint *ikey = (const GLuint *) key; GLuint hash = 0, i; assert(key_size >= 4); /* Make a slightly better attempt at a hash function: */ for (i = 0; i < key_size / sizeof(*ikey); i++) { hash += ikey[i]; hash += (hash << 10); hash ^= (hash >> 6); } return hash; }