The previous scheme didn't work when the client didn't create the core drawable,
e.g. the root or composite overlay window. Use refcounting via special client
resources to fix that.
We need to do this to update the sprites x/y coordinate before we assemble a
button event. Absolute devices may send a buttonEvent with valuators attached.
If we don't update the sprite before assembling the event, the valuators are
lost and the button press is delivered to the previous position of the device.
Doesn't have any effect on relative devices.
XkbCopyKeymap reallocates the destination keymap when it is not large enough
to hold the source data. When reallocating the map->types data, it needs to
zero out the new entries. The computation for where to start bzero'ing was
accounting for the size of the data type twice, once implicitly in the
pointer arithmetic, and once explicitly with '* sizeof (XkbKeyTypeRec)'.
This would often lead to random memory corruption when the destination
keymap had existing map->types data.
Installed protocol header version may be newer than the server code base.
Use internal version number for Composite extension to make sure the server
doesn't advertise capabilities it doesn't support.
This patch changes the semantics of manual redirect windows so that they no
longer affect the clip list of their parent. Doing this means the parent can
draw to the area covered by the child without using IncludeInferiors. More
importantly, this also means that the parent receives expose events when
that region is damaged by other actions.
Print debug messages only when the appropriate debug bit is set in the
8086 state vector, so you can focus in on the call you're actually
interested in.
We need this to allow extensions to fill in extra data for an event before it
is sent to the client. This is probably to be used like
FillUpEventsFromWindow().
DeletePassiveGrabFromList() may remove the window optional, so we need to
re-alloc it if it isn't there anymore.
Thanks to Colin Harrison for spotting the bug.
This is definitely necessary in CheckDeviceGrabAndHintWindow (thanks to Paulo
Zanoni for spotting it). We're resetting it everywhere else too, just to be
save.
Device drivers flush their buttons on device init and cause a button down
event to be generated. If we unconditionally decrease the buttons, we won't be
able to ever get a passive device grab.
Format documentation for CheckDeviceGrabs to make it readable.
(cherry picked from commit 3e894974cd)
Conflicts:
Xi/exevents.c
