libsidplayfp  1.4.2
Spline.h
1 /*
2  * This file is part of libsidplayfp, a SID player engine.
3  *
4  * Copyright 2011-2014 Leandro Nini <drfiemost@users.sourceforge.net>
5  * Copyright 2007-2010 Antti Lankila
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20  */
21 
22 #ifndef SPLINE_H
23 #define SPLINE_H
24 
25 namespace reSIDfp
26 {
27 
34 class Spline
35 {
36 public:
37  typedef struct
38  {
39  double x;
40  double y;
41  } Point;
42 
43 private:
44  typedef double(*Params)[6];
45 
46 private:
47  double* c;
48  const int paramsLength;
49  Params params;
50 
51 private:
55  inline double slope(const Point &a, const Point &b);
56 
57 public:
58  Spline(const Point input[], int inputLength);
59  ~Spline() { delete [] params; }
60 
64  void evaluate(double x, Point &out);
65 };
66 
67 } // namespace reSIDfp
68 
69 #endif
Definition: Spline.h:34
Definition: Spline.h:37
void evaluate(double x, Point &out)
Definition: Spline.cpp:95