projects / screensavers / blame
| Commit | Line | Data |
|---|---|---|
| 3144ee8a AT |
1 | /* |
| 2 | * Copyright (c) 1987, 1988, 1989 Stanford University | |
| 3 | * | |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its | |
| 5 | * 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 Stanford not be used in advertising or | |
| 9 | * publicity pertaining to distribution of the software without specific, | |
| 10 | * written prior permission. Stanford makes no representations about | |
| 11 | * the suitability of this software for any purpose. It is provided "as is" | |
| 12 | * without express or implied warranty. | |
| 13 | * | |
| 14 | * STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. | |
| 16 | * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR | |
| 19 | * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION | |
| 20 | * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 21 | */ | |
| 22 | ||
| 23 | /* This code came with the InterViews distribution, and was translated | |
| 24 | from C++ to C by Matthieu Devin <devin@lucid.com> some time in 1992. | |
| 25 | */ | |
| 26 | ||
| 27 | #ifndef _SPLINE_H_ | |
| 28 | #define _SPLINE_H_ | |
| 29 | ||
| 30 | typedef struct _spline | |
| 31 | { | |
| 32 | /* input */ | |
| 33 | unsigned int n_controls; | |
| 34 | double* control_x; | |
| 35 | double* control_y; | |
| 36 | ||
| 37 | /* output */ | |
| 38 | unsigned int n_points; | |
| 39 | XPoint* points; | |
| 40 | unsigned int allocated_points; | |
| 41 | } spline; | |
| 42 | ||
| 43 | spline* make_spline (unsigned int size); | |
| 44 | void compute_spline (spline* s); | |
| 45 | void compute_closed_spline (spline* s); | |
| 46 | void just_fill_spline (spline* s); | |
| 47 | void append_spline_points (spline* s1, spline* s2); | |
| 48 | void spline_bounding_box (spline* s, XRectangle* rectangle_out); | |
| 49 | void free_spline(spline *s); | |
| 50 | ||
| 51 | #endif /* _SPLINE_H_ */ |