[Bug 6971] Mouse "escapes" window or is confined to an area in the full screen program NO HACKS PLEASE

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=6971

Roman <m01brv at mail.ru> changed:

           What    |Removed                     |Added
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                 CC|                            |m01brv at mail.ru

--- Comment #489 from Roman <m01brv at mail.ru> 2011-05-12 04:11:35 CDT ---
I have an issue with Aliens vs. Predator 2 with wine 1.3.17 + XInput2 patch
from here. After loading a level, the picture starts to crazily rotate at high
speed, although I do not touch mouse at all. The debug logs suggest that this
happens because the game itself is contiuously warping the pointer to the
screen center, calling (through wine) XWarpPointer. But this call triggers an
XI_RawMotion event with *absolute* screen coordinates, as requested in
XWarpPointer, rather then with their relative offset. This can be checked using
a testcase from here:
http://comments.gmane.org/gmane.comp.freedesktop.xorg.devel/12204
The functions responsible for tracking xi2 interpret them as relative
movements, so wine continuosly send dinput events as if the mouse was
continuously jumping by (640,400) (for my resolution 1280x800), and this causes
constant crazy rotation of the picture.

Comparing the behaviour of the game in different wine versions:
wine 1.3.17 - mose aiming is trembling; it is usable only with maximum "mouse
smoothing" in-game setting
wine 1.3.17 + XInput2 patch - crazy rotation, as I described
wine 1.3.18 - mouse is almost stuck, the picture practically does not react on
mouse moving; only some small shifts of the picture may occure from time to
time (when rapidly moving mouse in various directions during a few seconds
continuosly).

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