http://ftp.x.org/contrib/applications/xscreensaver-2.21.tar.gz

[xscreensaver] / utils / spline.h

diff --git a/utils/spline.h b/utils/spline.h
index c0c4d7fd3aaaf7cf4f9c52da38757d3d6a1ad90f..a5a366cbd977e50c7d7e70edbda224661a29b71a 100644 (file)
--- a/utils/spline.h
+++ b/utils/spline.h
@@ -1,33 +1,51 @@
-#ifndef _SPLINE_H_
-#define _SPLINE_H_
+/*
+ * 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.
+ */
 
-#include <X11/Xlib.h>
+/* This code came with the InterViews distribution, and was translated
+   from C++ to C by Matthieu Devin <devin@lucid.com> some time in 1992.
+ */
 
-#if __STDC__
-# define P(x)x
-#else
-# define P(x)()
-#endif
+#ifndef _SPLINE_H_
+#define _SPLINE_H_
 
 typedef struct _spline
 {
   /* input */
-  u_int                n_controls;
+  unsigned int n_controls;
   double*      control_x;
   double*      control_y;
 
   /* output */
-  u_int                n_points;
+  unsigned int         n_points;
   XPoint*      points;
-  u_int                allocated_points;
+  unsigned int         allocated_points;
 } spline;
 
-spline* make_spline P((u_int size));
-void compute_spline P((spline* s));
-void compute_closed_spline P((spline* s));
-void just_fill_spline P((spline* s));
-void append_spline_points P((spline* s1, spline* s2));
-void spline_bounding_box P((spline* s, XRectangle* rectangle_out));
+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);
 
-#undef P
 #endif /* _SPLINE_H_ */