Store Thumbstick, Trackpad etc. data internally in a vec2f.
The knowledge that a binding path ../x and ../y refers to the x and y components of this vec2f
is stored as an INPUT_REDIRECT_VEC2_X_TO_VEC1 or INPUT_REDIRECT_VEC2_Y_TO_VEC enum.
Actions now also store the index of the binding paths it matched to,
e.g. when an action binds ../trackpad/y to an input that provides bindings [../trackpad, ../trackpad/x, ../trackpad/y],
the index 2 is stored.
v2: Clarify preferred binding path index variable
v2: Add basic 3DOF Index Controller support
Only the "gen1" watchman usb protocol is supported (almost same as vive wand).
Note: Lighthouse v2 data is not properly ignored, the IMU data is only parsed correctly
when controller is not hit by lighthouse lasers.
Supported:
* trigger value
* trigger button
* trackpad x, y
* trackpad touch
* thumbstick x, y
* thumbstick click
* system click
* a click,
* b click
Not supported:
* trigger touch
* touchpad force
* thumbstick touch
* system touch
* a touch
* b touch
* grip squeeze
* finger tracking
This initializes default values in the display, distortion and IMU
properties so the runtime is happy in case the JSON config could not be
read.
This patch also moves default value initialization for the Index
into one place with the others, for cases we do not have the data.
This adds a driver for the Vive family of devices based on Philipp
Zabel's ouvrt.
The driver currently only handles the IMU and main board report streams,
but is able to acquire the JSON configuration and utilize it for IMU
calibration as well as distortion configuration.