From 5b94d6f3b61b22225d1651f808343572d9ec7fa4 Mon Sep 17 00:00:00 2001
From: Greg V <greg@unrelenting.technology>
Date: Wed, 22 Dec 2021 19:32:43 +0300
Subject: [PATCH] pointer: add unaccelerated deltas to touchpad gesture events

These are not used by Wayland, but can be used by the compositor's built-in features.
---
 backend/libinput/pointer.c      | 4 ++++
 include/wlr/types/wlr_pointer.h | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/backend/libinput/pointer.c b/backend/libinput/pointer.c
index 520f98dcf..745275df5 100644
--- a/backend/libinput/pointer.c
+++ b/backend/libinput/pointer.c
@@ -177,6 +177,8 @@ void handle_pointer_swipe_update(struct libinput_event *event,
 		.fingers = libinput_event_gesture_get_finger_count(gevent),
 		.dx = libinput_event_gesture_get_dx(gevent),
 		.dy = libinput_event_gesture_get_dy(gevent),
+		.unaccel_dx = libinput_event_gesture_get_dx_unaccelerated(gevent),
+		.unaccel_dy = libinput_event_gesture_get_dy_unaccelerated(gevent),
 	};
 	wlr_signal_emit_safe(&wlr_dev->pointer->events.swipe_update, &wlr_event);
 }
@@ -236,6 +238,8 @@ void handle_pointer_pinch_update(struct libinput_event *event,
 		.fingers = libinput_event_gesture_get_finger_count(gevent),
 		.dx = libinput_event_gesture_get_dx(gevent),
 		.dy = libinput_event_gesture_get_dy(gevent),
+		.unaccel_dx = libinput_event_gesture_get_dx_unaccelerated(gevent),
+		.unaccel_dy = libinput_event_gesture_get_dy_unaccelerated(gevent),
 		.scale = libinput_event_gesture_get_scale(gevent),
 		.rotation = libinput_event_gesture_get_angle_delta(gevent),
 	};
diff --git a/include/wlr/types/wlr_pointer.h b/include/wlr/types/wlr_pointer.h
index bcfb2ad3d..f36da99cd 100644
--- a/include/wlr/types/wlr_pointer.h
+++ b/include/wlr/types/wlr_pointer.h
@@ -96,6 +96,7 @@ struct wlr_event_pointer_swipe_update {
 	// Relative coordinates of the logical center of the gesture
 	// compared to the previous event.
 	double dx, dy;
+	double unaccel_dx, unaccel_dy;
 };
 
 struct wlr_event_pointer_swipe_end {
@@ -117,6 +118,7 @@ struct wlr_event_pointer_pinch_update {
 	// Relative coordinates of the logical center of the gesture
 	// compared to the previous event.
 	double dx, dy;
+	double unaccel_dx, unaccel_dy;
 	// Absolute scale compared to the begin event
 	double scale;
 	// Relative angle in degrees clockwise compared to the previous event.