diff options
| -rw-r--r-- | dix/resource.c | 33 |
1 files changed, 9 insertions, 24 deletions
diff --git a/dix/resource.c b/dix/resource.c index 68efd2471..b6ef99f10 100644 --- a/dix/resource.c +++ b/dix/resource.c @@ -156,7 +156,7 @@ static void RebuildTable(int /*client */ #define INITBUCKETS 64 #define INITHASHSIZE 6 -#define MAXHASHSIZE 11 +#define MAXHASHSIZE 16 typedef struct _Resource { struct _Resource *next; @@ -668,29 +668,14 @@ InitClientResources(ClientPtr client) int HashResourceID(XID id, int numBits) { - id &= RESOURCE_ID_MASK; - switch (numBits) - { - case 6: - return ((int)(0x03F & (id ^ (id>>6) ^ (id>>12)))); - case 7: - return ((int)(0x07F & (id ^ (id>>7) ^ (id>>13)))); - case 8: - return ((int)(0x0FF & (id ^ (id>>8) ^ (id>>16)))); - case 9: - return ((int)(0x1FF & (id ^ (id>>9)))); - case 10: - return ((int)(0x3FF & (id ^ (id>>10)))); - case 11: - return ((int)(0x7FF & (id ^ (id>>11)))); - } - if (numBits >= 11) - return ((int)(0x7FF & (id ^ (id>>11)))); - else - { - assert(numBits >= 0); - return id & ~((~0) << numBits); - } + static XID mask; + + if (!mask) + mask = RESOURCE_ID_MASK; + id &= mask; + if (numBits < 9) + return (id ^ (id >> numBits) ^ (id >> (numBits<<1))) & ~((~0) << numBits); + return (id ^ (id >> numBits)) & ~((~0) << numBits); } static XID |