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79 lines
2.1 KiB
79 lines
2.1 KiB
/*
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* Copyright © 2011 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <stdint.h>
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#include <inttypes.h>
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#include "config.h"
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#include <libweston/libweston.h>
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#include "shared/timespec-util.h"
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WL_EXPORT void
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weston_view_geometry_dirty(struct weston_view *view)
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{
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}
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WL_EXPORT int
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weston_log(const char *fmt, ...)
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{
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return 0;
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}
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WL_EXPORT void
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weston_view_schedule_repaint(struct weston_view *view)
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{
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}
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WL_EXPORT void
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weston_compositor_schedule_repaint(struct weston_compositor *compositor)
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{
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}
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int
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main(int argc, char *argv[])
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{
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const double k = 300.0;
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const double current = 0.5;
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const double target = 1.0;
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const double friction = 1400;
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struct weston_spring spring;
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struct timespec time = { 0 };
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weston_spring_init(&spring, k, current, target);
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spring.friction = friction;
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spring.previous = 0.48;
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spring.timestamp = (struct timespec) { 0 };
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while (!weston_spring_done(&spring)) {
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printf("\t%" PRId64 "\t%f\n",
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timespec_to_msec(&time), spring.current);
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weston_spring_update(&spring, &time);
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timespec_add_msec(&time, &time, 16);
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}
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return 0;
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}
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