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dix: make DeviceEvent coordinates signed for Xinerama. #24986 

With Xinerama enabled, event coordinates are relative to Screen 0, so
they can be negative.  The new DeviceEvent's coordinates are of type
uint16_t, making screens above and to the left of Screen 0 unusable.

X.Org Bug 24986 <https://bugs.freedesktop.org/show_bug.cgi?id=24986>

Signed-off-by: Chris Humbert <freedesktop@mahadri.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit 21ed660f30)
This commit is contained in:
Chris Humbert 2010-05-07 17:02:43 +10:00 committed by Julien Cristau
parent e9a2eb86e9
commit c247f81ca1
1 changed files with 2 additions and 2 deletions
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4
include/eventstr.h
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@ -91,9 +91,9 @@ struct _DeviceEvent
uint32_t button; /**< Button number */
uint32_t key; /**< Key code */
} detail;
uint16_t root_x; /**< Pos relative to root window in integral data */
int16_t root_x; /**< Pos relative to root window in integral data */
float root_x_frac; /**< Pos relative to root window in frac part */
uint16_t root_y; /**< Pos relative to root window in integral part */
int16_t root_y; /**< Pos relative to root window in integral part */
float root_y_frac; /**< Pos relative to root window in frac part */
uint8_t buttons[(MAX_BUTTONS + 7)/8]; /**< Button mask */
struct {