1 // Copyright 2004 "Gilles Degottex"
3 // This file is part of "Music"
5 // "Music" is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU Lesser General Public License as published by
7 // the Free Software Foundation; either version 2.1 of the License, or
8 // (at your option) any later version.
10 // "Music" is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU Lesser General Public License for more details.
15 // You should have received a copy of the GNU Lesser General Public License
16 // along with this program; if not, write to the Free Software
17 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 Music::NotesName Music::s_notes_name = Music::LOCAL_ANGLO;
28 int Music::s_tonality = 0;
29 double Music::s_semitones[13] = { 1.0000, 1.0595, 1.1225, 1.1892, 1.2599, 1.3348, 1.4142, 1.4983, 1.5874, 1.6818, 1.7818, 1.8877, 2.0000 }; // Chromatic, never used
30 static double semitones_werckmeister3[] = { 1.0, 1.06425952556, 1.125, 1.19729196625, 1.26134462288, 1.33785800438, 1.41901270074, 1.5, 1.59638928833, 1.68179283051, 1.78986403988, 1.89201693432, 2.0 };
31 static double semitones_kirnberger3[] = { 1.0, 1.06335913331, 1.12151158592, 1.19627902498, 1.26027749133, 1.33748060995, 1.41781217775, 1.49534878122, 1.59503869997, 1.68036998845, 1.788854382, 1.890416237, 2.0 };
32 static double semitones_diatonic[] = { 1.0, 1.06666666667, 1.125, 1.2, 1.25, 1.35, 1.44, 1.5, 1.6, 1.6875, 1.8, 1.875, 2.0 };
33 static double semitones_meantone[] = { 1.0, 1.06998448796, 1.11803398875, 1.19627902498, 1.25, 1.33748060995, 1.4310835056, 1.49534878122, 1.6, 1.67185076244, 1.788854382, 1.86918597653, 2.0};
34 Music::Tuning Music::s_tuning = Music::CHROMATIC;
36 int Music::s_sampling_rate = -1;
37 double Music::s_AFreq = 440.0;
38 const int Music::UNDEFINED_SEMITONE = -1000;
39 int Music::s_semitone_min = -48;
40 int Music::s_semitone_max = +48;
42 Music::SettingsListener::SettingsListener()
44 s_settings_listeners.push_back(this);
46 Music::SettingsListener::~SettingsListener()
48 s_settings_listeners.remove(this);
51 list<Music::SettingsListener*> Music::s_settings_listeners;
52 void Music::AddSettingsListener(SettingsListener* l)
54 if(find(s_settings_listeners.begin(), s_settings_listeners.end(), l)==s_settings_listeners.end())
55 s_settings_listeners.push_back(l);
57 void Music::RemoveSettingsListener(SettingsListener* l)
59 s_settings_listeners.remove(l);
62 void Music::SetTuning(Tuning tuning)
71 for (i = 0; i < 13; i += 1)
73 s_semitones[i] = semitones_werckmeister3[i];
77 for (i = 0; i < 13; i += 1)
79 s_semitones[i] = semitones_kirnberger3[i];
83 for (i = 0; i < 13; i += 1)
85 s_semitones[i] = semitones_diatonic[i];
89 for (i = 0; i < 13; i += 1)
91 s_semitones[i] = semitones_meantone[i];
97 void Music::SetSamplingRate(int sampling_rate)
99 s_sampling_rate = sampling_rate;
100 for(list<Music::SettingsListener*>::iterator it=s_settings_listeners.begin(); it!=s_settings_listeners.end(); ++it)
101 (*it)->samplingRateChanged();
104 void Music::SetAFreq(double AFreq)
107 for(list<Music::SettingsListener*>::iterator it=s_settings_listeners.begin(); it!=s_settings_listeners.end(); ++it)
108 (*it)->AFreqChanged();
111 void Music::SetSemitoneBounds(int semitone_min, int semitone_max)
113 // cerr << "Music::SetSemitoneBounds" << endl;
115 s_semitone_min = semitone_min;
116 s_semitone_max = semitone_max;
118 for(list<Music::SettingsListener*>::iterator it=s_settings_listeners.begin(); it!=s_settings_listeners.end(); ++it)
119 (*it)->semitoneBoundsChanged();
122 vector<double> Music::conv(const vector<double>& u, const vector<double>& v)
124 vector<double> w(v.size());
126 for(size_t i=0; i<w.size(); i++)
129 for(size_t j=0; j<u.size(); j++)