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Keith Packard 65dd1ba7b3 dix: Untwist transformAbsolute logic, eliminate uninitialized value warnings 
tranformAbsolute has a pretty simple job, that of running the X/Y
values from a device through the transformation matrix. The tricky bit
comes when the current device state doesn't include one of the
values. In that case, the last delivered value is back-converted to
device space and used instead.

The logic was twisted though, confusing GCC's uninitialized value
detection logic and emitting warnings.

This has been fixed by changing the code to:

 1) Detect whether the ValuatorMask includes X/Y values
 2) If either are missing, back-convert the current values into ox/oy
 3) When X/Y are present, set ox/oy to the current value
 4) Transform
 5) Store X/Y values if changed or if they were set before.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
 		2014-10-28 20:56:37 -07:00
..
.gitignore dix and os: gitignore dix.O and os.O 2011-09-23 17:14:47 -07:00
BuiltInAtoms R6.6 is the Xorg base-line 2003-11-14 15:54:54 +00:00
Makefile.am Allow DDX to provide a main() 2013-07-23 23:56:58 +01:00
Xserver-dtrace.h.in dix: add dtrace probes to input API 2012-03-22 11:33:42 +10:00
Xserver.d dix: add dtrace probes to input API 2012-03-22 11:33:42 +10:00
atom.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
buildatoms XFree86 4.3.0.1 2003-11-14 16:49:22 +00:00
colormap.c Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
cursor.c Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
devices.c input: Remove unused SetKeySymsMap 2014-10-08 10:10:39 +02:00
dispatch.c mi: Move pScreen->SendGraphicsExpose up to dix 2014-10-09 11:14:53 +02:00
dispatch.h Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
dixfonts.c dixfonts: Turn a missing directory ErrorF into a DebugF 2014-04-21 15:01:02 -07:00
dixutils.c glx: Move the GLX variable caching what GL context is current to dix. 2014-04-23 10:32:02 -07:00
enterleave.c input: drop FP1616 macro 2012-11-19 12:12:23 +10:00
enterleave.h dix: Move DeviceFocusEvent from Xi into enterleave.c 2012-05-17 08:50:44 +10:00
eventconvert.c dix: send the current axis value in DeviceChangedEvents (#62321) 2013-05-07 09:40:42 +10:00
events.c dix: reference the cursor just once in InitializeSprite() 2014-06-04 21:32:14 -07:00
extension.c Build required portions of registry.c automatically [v2] 2014-09-18 15:29:29 -07:00
ffs.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
gc.c dix: Always store GC client clip as a region (v2) 2014-10-27 15:46:05 -04:00
getevents.c dix: Untwist transformAbsolute logic, eliminate uninitialized value warnings 2014-10-28 20:56:37 -07:00
globals.c Handle -displayfd and an explicit display number sensibly 2014-03-27 14:34:34 +00:00
glyphcurs.c Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
grabs.c Merge remote-tracking branch 'whot/for-keith' 2014-01-22 11:33:53 -08:00
initatoms.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
inpututils.c dix: fix button state check before changing a button mapping 2014-02-05 07:50:16 +10:00
main.c dix: Close protocol.txt after we're done loading extension names 2014-09-18 15:29:27 -07:00
pixmap.c pixmap: fix reverse optimus support with multiple heads 2014-09-11 18:14:44 -07:00
privates.c Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
property.c Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
protocol.txt dix: Remove XpExtension leftovers from protocol.txt 2014-10-02 10:16:24 -07:00
ptrveloc.c dix: allow a ConstantDeceleration between 0 and 1 (#66134) 2013-07-17 14:27:26 +10:00
region.c Add a RegionDuplicate function 2013-10-31 16:58:16 -07:00
registry.c Build required portions of registry.c automatically [v2] 2014-09-18 15:29:29 -07:00
resource.c Build required portions of registry.c automatically [v2] 2014-09-18 15:29:29 -07:00
selection.c Use C99 designated initializers in dix Events 2012-07-09 22:52:30 -07:00
stubmain.c Allow DDX to provide a main() 2013-07-23 23:56:58 +01:00
swaprep.c Remove unneccesary casts from WriteToClient calls 2012-07-09 19:12:56 -07:00
swapreq.c Use C99 designated initializers in dix Events 2012-07-09 22:52:30 -07:00
tables.c Make indentation of dix/tables.c much more consistent and readable 2012-08-06 15:22:53 -07:00
touch.c Replace 'pointer' type with 'void *' 2014-01-12 10:24:11 -08:00
window.c misc: Fold together some redundant conditionals 2014-10-09 11:19:06 +02:00