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sync code with last improvements from OpenBSD

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purplerain 2023-08-28 05:57:34 +00:00
commit 88965415ff
Signed by: purplerain
GPG key ID: F42C07F07E2E35B7
26235 changed files with 29195616 additions and 0 deletions
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62
app/xlockmore/xlock/spline.h Normal file
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#ifndef _SPLINE_H_
#define _SPLINE_H_
#if !defined( lint ) && !defined( SABER )
/* #ident "@(#)spline.h 4.14 99/06/17 xlockmore" */
#endif
/*-
* Spline stuff
*
* Revision History:
* 17-06-99: Started log. :)
*/
/*
* Copyright (c) 1987, 1988, 1989 Stanford University
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Stanford not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Stanford makes no representations about
* the suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* This code came with the InterViews distribution, and was translated
from C++ to C by Matthieu Devin <devin@lucid.com> some time in 1992.
*/
typedef struct {
/* input */
unsigned int n_controls;
double *control_x;
double *control_y;
/* output */
unsigned int n_points;
XPoint *points;
unsigned int allocated_points;
} spline;
spline *make_spline(unsigned int size);
void compute_spline(spline * s);
void compute_closed_spline(spline * s);
void just_fill_spline(spline * s);
void append_spline_points(spline * s1, spline * s2);
void spline_bounding_box(spline * s, XRectangle * rectangle_out);
void free_spline(spline * s);
#endif /* _SPLINE_H_ */