libweston: Migrate functions that operate on 'weston_spring'
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
diff --git a/libweston/libweston-internal.h b/libweston/libweston-internal.h
index 0bbd219..e5e6378 100644
--- a/libweston/libweston-internal.h
+++ b/libweston/libweston-internal.h
@@ -263,4 +263,15 @@
pixman_region32_t *buffer_region);
void
weston_surface_schedule_repaint(struct weston_surface *surface);
+
+/* weston_spring */
+
+void
+weston_spring_init(struct weston_spring *spring,
+ double k, double current, double target);
+int
+weston_spring_done(struct weston_spring *spring);
+
+void
+weston_spring_update(struct weston_spring *spring, const struct timespec *time);
#endif