libsidplayfp 2.15.0
Spline.h
1/*
2 * This file is part of libsidplayfp, a SID player engine.
3 *
4 * Copyright 2011-2015 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#include <cstddef>
26#include <vector>
27
28namespace reSIDfp
29{
30
38class Spline
39{
40public:
41 using Point = struct
42 {
43 double x;
44 double y;
45 };
46
47private:
48 using Param = struct
49 {
50 double x1;
51 double x2;
52 double a;
53 double b;
54 double c;
55 double d;
56 };
57
58 using ParamVector = std::vector<Param>;
59
60private:
62 ParamVector params;
63
65 mutable ParamVector::const_pointer c;
66
67public:
68 Spline(const std::vector<Point> &input);
69
73 Point evaluate(double x) const;
74};
75
76} // namespace reSIDfp
77
78#endif
Definition Spline.h:39
Point evaluate(double x) const
Definition Spline.cpp:91