Users that want a flat pointer acceleration want the input speed to
match 1:1 to the output speed, barring a fixed constant multiplier.
This will apply to things like button scrolling as well, so let's map
the constant accel function to the non-constant accel functions to the
speed setting applies to every movement.
This is applied to both the flat and the touchpad flat filter.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The filter vs const filter is supposed to be for accelerated vs
non-accelerated motion (e.g. pointer motion vs scrolling) - in both
cases the returned value is supposed to be in the same coordinate
system, just once with an extra accel factor applied.
This was broken in the flat and low-dpi profiles: in both of those the
accelerated filter does *not* normalize, it merely applies the fixed/adaptive factor.
The constant filter normalized however. The result was that on e.g. a
5000dpi mouse the constant motion was 5 times slower than the
accelerated motion, even with a factor of 1.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This also fixes a bug with the _noop function, because we casted to the wrong
struct the dpi value was garbage.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
