We need to store all touchpoint positions so that if we just get an
ABS_MT_POSITION_X or Y event, we can pull the other coordinate from the
cache. And we need this across invocations of evdev_input_device_data(),
so the accumulator approach doesn't work.
Instead, we go back to the approach of storing all this state in the
evdev device struct and we might as well just move the rel and abs state
there too.
This adds ABS_MT_* support for direct touch devices and notifies
the compositor. The compositor has a stub for now.
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
Besides the new header file, there's also a change in the main evdev creation
procedure for a more suggestive name (evdev_input_add_devices ->
evdev_input_create). There's no real functional changes in this commit.
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
when a motion is being performed on ts device, only one axis can be sent
through the evdev bytestream whereas the other could be omitted. For instance:
-------------- SYN_REPORT ------------
type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 22208
type 3 (EV_ABS), code 58 (ABS_MT_PRESSURE), value 631
type 3 (EV_ABS), code 0 (ABS_X), value 22208
-------------- SYN_REPORT ------------
on such case we'd have to send the compositor the old value of Y. Commit
f547bd36 introduced this bug cause it was sending zeroed coordinate and not
the old one.
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
We'll want to enhance later the driver regarding the tool being used, but for
now just remove unused bits.
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
Very likely that 2.4 kernels won't be used with Wayland compositor so the
check for signal value is pretty much useless.
It's okay to change e->value inside evdev_process_absolute_motion_touchpad
given it's not used later on, and I also rather not touch this snip because it
will be changed when multi-touch support arrives.
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
This isn't going to change over time, so just tracking it in the
evdev device is a little easier. Also, we need to adjust for the
output position when transforming the device events to screen space.
We may want to adjust the protocol later for clients that care for
these devices only, generating a special event.
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
