Add calibration_matrix config option

Can be used to change the orientation of a touchscreen.

Example usage with swaymsg:

    # identity
    swaymsg input type:touch calibration_matrix '"1 0 0 0 1 0"'

    # 90 degree clockwise
    swaymsg input type:touch calibration_matrix '"0 -1 1 1 0 0"'

    # 180 degree clockwise
    swaymsg input type:touch calibration_matrix '"-1 0 1 0 -1 1"'

    # 270 degree clockwise
    swaymsg input type:touch calibration_matrix '"0 1 0 -1 0 1"'

Documentation:

    https://wayland.freedesktop.org/libinput/doc/latest/absolute-axes.html#calibration-of-absolute-devices

1 files changed, 1 insertions, 0 deletions

diff --git a/sway/commands/input.c b/sway/commands/input.c
index 08af3cb2..588ef2d5 100644
--- a/sway/commands/input.c
+++ b/sway/commands/input.c
@@ -9,6 +9,7 @@
 // must be in order for the bsearch
 static struct cmd_handler input_handlers[] = {
         { "accel_profile", input_cmd_accel_profile },
+        { "calibration_matrix", input_cmd_calibration_matrix },
         { "click_method", input_cmd_click_method },
         { "drag", input_cmd_drag },
         { "drag_lock", input_cmd_drag_lock },