1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/* -*- Mode: c++ -*- */
/***************************************************************************
* powermap.h
*
* Fri Apr 17 23:06:12 CEST 2020
* Copyright 2020 André Nusser
* andre.nusser@googlemail.com
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#pragma once
#include <array>
#include <vector>
class Powermap
{
public:
using Power = float;
using Powers = std::vector<Power>;
struct PowerPair
{
Power in;
Power out;
bool operator!=(const PowerPair& other)
{
return in != other.in || out != other.out;
}
};
Powermap();
Power map(Power in);
void reset();
void setFixed0(PowerPair new_value);
void setFixed1(PowerPair new_value);
void setFixed2(PowerPair new_value);
void setShelf(bool enable);
PowerPair getFixed0() const;
PowerPair getFixed1() const;
PowerPair getFixed2() const;
private:
// input parameters (state of this class)
std::array<PowerPair, 3> fixed;
bool shelf;
// spline parameters (deterministically computed from the input parameters)
bool spline_needs_update;
std::array<float, 5> m;
const Power eps = 1e-4;
void updateSpline();
std::vector<float> calcSlopes(const Powers& X, const Powers& P);
Power clamp(Power in, Power min, Power max) const;
};
|
