On Wayland, report unaccelerated mouse deltas in DeviceEvent::MouseMotion

CHANGELOG.md

@@ -8,6 +8,7 @@ And please only add new entries to the top of this list, right below the `# Unre
 
 # Unreleased
 
+- On Wayland, report unaccelerated mouse deltas in `DeviceEvent::MouseMotion`.
 - **Breaking:** Bump `ndk` version to 0.6, ndk-sys to `v0.3`, `ndk-glue` to `0.6`.
 - Remove no longer needed `WINIT_LINK_COLORSYNC` environment variable.
 - **Breaking:** Rename the `Exit` variant of `ControlFlow` to `ExitWithCode`, which holds a value to control the exit code after running. Add an `Exit` constant which aliases to `ExitWithCode(0)` instead to avoid major breakage. This shouldn't affect most existing programs.

src/platform_impl/linux/wayland/seat/pointer/handlers.rs

@@ -297,9 +297,17 @@ pub(super) fn handle_pointer(
 
 #[inline]
 pub(super) fn handle_relative_pointer(event: RelativePointerEvent, winit_state: &mut WinitState) {
-    if let RelativePointerEvent::RelativeMotion { dx, dy, .. } = event {
-        winit_state
-            .event_sink
-            .push_device_event(DeviceEvent::MouseMotion { delta: (dx, dy) }, DeviceId)
+    match event {
+        RelativePointerEvent::RelativeMotion {
+            dx_unaccel,
+            dy_unaccel,
+            ..
+        } => winit_state.event_sink.push_device_event(
+            DeviceEvent::MouseMotion {
+                delta: (dx_unaccel, dy_unaccel),
+            },
+            DeviceId,
+        ),
+        _ => (),
     }
 }