[Bug 9221] Force Feedback doesn't work but does after little source modification

http://bugs.winehq.org/show_bug.cgi?id=9221

--- Comment #36 from Elias Vanderstuyft  ---
Created attachment 47514
  --> http://bugs.winehq.org/attachment.cgi?id=47514
Visualisation of forces in LFS (realtime)

Real-time visualisation of FF forces produced by LFS using a dummy FF device
("ff-dummy-device").
As one can see, force is generated in the X direction, as it should. The
plotted results match with the movement and interaction of the car with the
environment.
LFS seems to use "DIEFF_CARTESIAN" as direction type, "direction[0] = f" and
"(*lpvTypeSpecificParams)->lMagnitude = abs(f)" with "f" being the (signed)
force along the steering wheel axis.