[freetype2-demos] master 8d0e6ac2 2/2: * graph/gblender.c (gblender_lookup): Quest for perfect hash function.

[Werner Lemberg]

branch: master
commit 8d0e6ac285f3b49edb65cacbe627bccfaa9c9199
Author: Alexei Podtelezhnikov <apodtele@gmail.com>
Commit: Alexei Podtelezhnikov <apodtele@gmail.com>

    * graph/gblender.c (gblender_lookup): Quest for perfect hash function.
---
 graph/gblender.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/graph/gblender.c b/graph/gblender.c
index f4ee39e4..d5398662 100644
--- a/graph/gblender.c
+++ b/graph/gblender.c
@@ -274,7 +274,7 @@ gblender_lookup( GBlender       blender,
   blender->stat_lookups++;
 #endif
 
-  idx = ( background ^ foreground * 7 ) % (GBLENDER_KEY_COUNT-1);
+  idx = ( background ^ foreground ^ 0x55555555 ) % (GBLENDER_KEY_COUNT-1);
 
   key = blender->keys + idx;