2 * Copyright © 2011 Intel Corporation
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation for any purpose is hereby granted without fee, provided
6 * that the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of the copyright holders not be used in
9 * advertising or publicity pertaining to distribution of the software
10 * without specific, written prior permission. The copyright holders make
11 * no representations about the suitability of this software for any
12 * purpose. It is provided "as is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
15 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
16 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
17 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
18 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
19 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
20 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 #include "compositor.h"
28 weston_view_geometry_dirty(struct weston_view *view)
33 weston_log(const char *fmt, ...)
39 weston_view_schedule_repaint(struct weston_view *view)
44 main(int argc, char *argv[])
46 const double k = 300.0;
47 const double current = 0.5;
48 const double target = 1.0;
49 const double friction = 1400;
51 struct weston_spring spring;
54 weston_spring_init(&spring, k, current, target);
55 spring.friction = friction;
56 spring.previous = 0.48;
59 while (!weston_spring_done(&spring)) {
60 printf("\t%d\t%f\n", time, spring.current);
61 weston_spring_update(&spring, time);