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| author | Jonas Ådahl <jadahl@gmail.com> | 2014-05-24 16:53:45 +0200 |
|---|---|---|
| committer | Jonas Ådahl <jadahl@gmail.com> | 2014-05-29 13:06:36 +0200 |
| commit | e18e9d56a8afe0268fcab09a6ef11d359bf0bbd5 (patch) | |
| tree | b5cfbb870c8a725680a4790acfadf858ee48f3e0 /src/evdev-mt-touchpad.h | |
| parent | 505e92b1a5fed7cbd05d3de3b5c09bb4fc950cc1 (diff) | |
| download | libinput-e18e9d56a8afe0268fcab09a6ef11d359bf0bbd5.tar.gz | |
touchpad: Make anisotropic motion deltas isotropic
The x and y absolute axis may have different resolutions, meaning 1 unit
long motion delta on one axis is not physically as long as 1 unit motion
delta on the other axis.
In order to make these anisotropic input motion deltas output as isotropic
motion deltas, apply scaling to one of the axis making it have the same
dimension as the other, before passing it through the motion filter
which assumes all deltas are isotropic.
https://bugs.freedesktop.org/show_bug.cgi?id=79056
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'src/evdev-mt-touchpad.h')
| -rw-r--r-- | src/evdev-mt-touchpad.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/evdev-mt-touchpad.h b/src/evdev-mt-touchpad.h index 41e3ca43..65391495 100644 --- a/src/evdev-mt-touchpad.h +++ b/src/evdev-mt-touchpad.h @@ -151,6 +151,9 @@ struct tp_dispatch { double constant_factor; double min_factor; double max_factor; + + double x_scale_coeff; + double y_scale_coeff; } accel; struct { |