1
0
mirror of https://github.com/alliedmodders/hl2sdk.git synced 2025-09-19 20:16:10 +08:00

Update IGameEvent (#155)

Co-authored-by: GAMMACASE <31375974+GAMMACASE@users.noreply.github.com>
This commit is contained in:
Juice
2023-10-09 00:16:21 +03:00
committed by GitHub
parent edef920f90
commit 4c5294550f
2 changed files with 277 additions and 188 deletions

View File

@ -1,4 +1,4 @@
//======= Copyright <20> 2005, , Valve Corporation, All rights reserved. =========
//======= Copyright <20> 2005, , Valve Corporation, All rights reserved. =========
//
// Purpose: Variant Pearson Hash general purpose hashing algorithm described
// by Cargill in C++ Report 1994. Generates a 16-bit result.
@ -301,3 +301,53 @@ unsigned FASTCALL HashBlock( const void *pKey, unsigned size )
return (even << 8) | odd;
}
uint32 MurmurHash2( const void *key, int len, uint32 seed )
{
// 'm' and 'r' are mixing constants generated offline.
// They're not really 'magic', they just happen to work well.
const uint32 m = 0x5bd1e995;
const int r = 24;
// Initialize the hash to a 'random' value
uint32 h = seed ^ len;
// Mix 4 bytes at a time into the hash
const unsigned char * data = (const unsigned char *)key;
while(len >= 4)
{
uint32 k = LittleDWord( *(uint32 *)data );
k *= m;
k ^= k >> r;
k *= m;
h *= m;
h ^= k;
data += 4;
len -= 4;
}
// Handle the last few bytes of the input array
switch(len)
{
case 3: h ^= data[2] << 16;
case 2: h ^= data[1] << 8;
case 1: h ^= data[0];
h *= m;
};
// Do a few final mixes of the hash to ensure the last few
// bytes are well-incorporated.
h ^= h >> 13;
h *= m;
h ^= h >> 15;
return h;
}