2 Copyright (C) 2010 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 #include "pbd/error.h"
20 #include "pbd/convert.h"
21 #include "pbd/locale_guard.h"
23 #include "ardour/speaker.h"
24 #include "ardour/speakers.h"
28 using namespace ARDOUR;
32 Speaker::Speaker (int i, const AngularVector& position)
39 Speaker::move (const AngularVector& new_position)
41 _angles = new_position;
42 _angles.cartesian (_coords);
49 Speakers::~Speakers ()
54 Speakers::dump_speakers (ostream& o)
56 for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
57 o << "Speaker " << (*i).id << " @ "
58 << (*i).coords().x << ", " << (*i).coords().y << ", " << (*i).coords().z
59 << " azimuth " << (*i).angles().azi
60 << " elevation " << (*i).angles().ele
61 << " distance " << (*i).angles().length
67 Speakers::clear_speakers ()
74 Speakers::add_speaker (const AngularVector& position)
76 int id = _speakers.size();
78 cerr << "Added speaker " << id << " at " << position.azi << " /= " << position.ele << endl;
80 _speakers.push_back (Speaker (id, position));
90 Speakers::remove_speaker (int id)
92 for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ) {
94 i = _speakers.erase (i);
102 Speakers::move_speaker (int id, const AngularVector& new_position)
104 for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
106 (*i).move (new_position);
114 Speakers::setup_default_speakers (uint32_t n)
116 /* default assignment of speaker position for n speakers */
122 add_speaker (AngularVector (0.0, 0.0));
126 add_speaker (AngularVector (0.0, 0.0));
127 add_speaker (AngularVector (180.0, 0,0));
131 /* top, bottom kind-of-left & bottom kind-of-right */
132 add_speaker (AngularVector (90.0, 0.0));
133 add_speaker (AngularVector (215.0, 0,0));
134 add_speaker (AngularVector (335.0, 0,0));
137 /* clockwise from top left */
138 add_speaker (AngularVector (135.0, 0.0));
139 add_speaker (AngularVector (45.0, 0.0));
140 add_speaker (AngularVector (335.0, 0.0));
141 add_speaker (AngularVector (215.0, 0.0));
146 double degree_step = 360.0 / n;
150 /* even number of speakers? make sure the top two are either side of "top".
151 otherwise, just start at the "top" (90.0 degrees) and rotate around
155 deg = 90.0 - degree_step;
159 for (i = 0; i < n; ++i, deg += degree_step) {
160 add_speaker (AngularVector (deg, 0.0));
167 Speakers::get_state ()
169 XMLNode* node = new XMLNode (X_("Speakers"));
171 LocaleGuard lg (X_("POSIX"));
173 for (vector<Speaker>::const_iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
174 XMLNode* speaker = new XMLNode (X_("Speaker"));
176 snprintf (buf, sizeof (buf), "%.12g", (*i).angles().azi);
177 speaker->add_property (X_("azimuth"), buf);
178 snprintf (buf, sizeof (buf), "%.12g", (*i).angles().ele);
179 speaker->add_property (X_("elevation"), buf);
180 snprintf (buf, sizeof (buf), "%.12g", (*i).angles().length);
181 speaker->add_property (X_("distance"), buf);
183 node->add_child_nocopy (*speaker);
190 Speakers::set_state (const XMLNode& node, int /*version*/)
192 XMLNodeConstIterator i;
193 const XMLProperty* prop;
195 LocaleGuard lg (X_("POSIX"));
200 for (i = node.children().begin(); i != node.children().end(); ++i, ++n) {
201 if ((*i)->name() == X_("Speaker")) {
202 if ((prop = (*i)->property (X_("azimuth"))) == 0) {
203 warning << _("Speaker information is missing azimuth - speaker ignored") << endmsg;
206 a = atof (prop->value());
208 if ((prop = (*i)->property (X_("elevation"))) == 0) {
209 warning << _("Speaker information is missing elevation - speaker ignored") << endmsg;
212 e = atof (prop->value());
214 if ((prop = (*i)->property (X_("distance"))) == 0) {
215 warning << _("Speaker information is missing distance - speaker ignored") << endmsg;
218 d = atof (prop->value());
220 add_speaker (AngularVector (a, e, d));