sway

commit a5c6816095158ff01ace12403bc527fec8c8af84
parent bcceb61b43c917247800d104d1fa064f51ab56a1
Author: Sergei Dolgov <dolgovs@gmail.com>
Date:   Sat, 22 Jun 2019 14:32:39 +0200

calibration_matrix: add the current matrix to the IPC description for libinput devices

Diffstat:
M
sway/ipc-json.c
 | 
12
++++++++++++
M
sway/sway-ipc.7.scd
 | 
4
++++

2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/sway/ipc-json.c b/sway/ipc-json.c
@@ -798,6 +798,18 @@ static json_object *describe_libinput_device(struct libinput_device *device) {
 		json_object_object_add(object, "dwt", json_object_new_string(dwt));
 	}
 
+	if (libinput_device_config_calibration_has_matrix(device)) {
+		float matrix[6];
+		libinput_device_config_calibration_get_matrix(device, matrix);
+		struct json_object* array = json_object_new_array();
+		struct json_object* x;
+		for (int i = 0; i < 6; i++) {
+			x = json_object_new_double(matrix[i]);
+			json_object_array_add(array, x);
+		}
+		json_object_object_add(object, "calibration_matrix", array);
+	}
+
 	return object;
 }
 
diff --git a/sway/sway-ipc.7.scd b/sway/sway-ipc.7.scd
@@ -1107,6 +1107,10 @@ following properties will be included for devices that support them:
 |- dwt
 :  string
 :  Whether disable-while-typing is enabled. It can be _enabled_ or _disabled_
+|- calibration_matrix
+:  array
+:  An array of 6 floats representing the calibration matrix for absolute
+   devices such as touchscreens
 
 
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