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XI2.h: Fix off-by-one error in the XIMaskLen definition.

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The previous definition would give the wrong result for events that are
a multiple of 8.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Alexandre Julliard 2011-04-12 22:39:25 +02:00 • committed by Peter Hutterer
parent ab930a5104
commit b1149ab782
1 changed files with 1 additions and 1 deletions
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2
XI2.h
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@ -127,7 +127,7 @@
#define XISetMask(ptr, event) (((unsigned char*)(ptr))[(event)>>3] |= (1 << ((event) & 7)))
#define XIClearMask(ptr, event) (((unsigned char*)(ptr))[(event)>>3] &= ~(1 << ((event) & 7)))
#define XIMaskIsSet(ptr, event) (((unsigned char*)(ptr))[(event)>>3] & (1 << ((event) & 7)))
#define XIMaskLen(event) (((event + 7) >> 3))
#define XIMaskLen(event) (((event) >> 3) + 1)
/* Fake device ID's for event selection */
#define XIAllDevices 0