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 (const Speakers& s)
51 _speakers = s._speakers;
54 Speakers::~Speakers ()
59 Speakers::operator= (const Speakers& s)
62 _speakers = s._speakers;
68 Speakers::dump_speakers (ostream& o)
70 for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
71 o << "Speaker " << (*i).id << " @ "
72 << (*i).coords().x << ", " << (*i).coords().y << ", " << (*i).coords().z
73 << " azimuth " << (*i).angles().azi
74 << " elevation " << (*i).angles().ele
75 << " distance " << (*i).angles().length
81 Speakers::clear_speakers ()
88 Speakers::add_speaker (const AngularVector& position)
90 int id = _speakers.size();
92 cerr << "Added speaker " << id << " at " << position.azi << " /= " << position.ele << endl;
94 _speakers.push_back (Speaker (id, position));
104 Speakers::remove_speaker (int id)
106 for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ) {
108 i = _speakers.erase (i);
116 Speakers::move_speaker (int id, const AngularVector& new_position)
118 for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
120 (*i).move (new_position);
128 Speakers::setup_default_speakers (uint32_t n)
130 /* default assignment of speaker position for n speakers */
136 add_speaker (AngularVector (0.0, 0.0));
140 add_speaker (AngularVector (0.0, 0.0));
141 add_speaker (AngularVector (180.0, 0,0));
145 /* top, bottom kind-of-left & bottom kind-of-right */
146 add_speaker (AngularVector (90.0, 0.0));
147 add_speaker (AngularVector (215.0, 0,0));
148 add_speaker (AngularVector (335.0, 0,0));
151 /* clockwise from top left */
152 add_speaker (AngularVector (135.0, 0.0));
153 add_speaker (AngularVector (45.0, 0.0));
154 add_speaker (AngularVector (335.0, 0.0));
155 add_speaker (AngularVector (215.0, 0.0));
160 double degree_step = 360.0 / n;
164 /* even number of speakers? make sure the top two are either side of "top".
165 otherwise, just start at the "top" (90.0 degrees) and rotate around
169 deg = 90.0 - degree_step;
173 for (i = 0; i < n; ++i, deg += degree_step) {
174 add_speaker (AngularVector (deg, 0.0));
181 Speakers::get_state ()
183 XMLNode* node = new XMLNode (X_("Speakers"));
185 LocaleGuard lg (X_("POSIX"));
187 for (vector<Speaker>::const_iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
188 XMLNode* speaker = new XMLNode (X_("Speaker"));
190 snprintf (buf, sizeof (buf), "%.12g", (*i).angles().azi);
191 speaker->add_property (X_("azimuth"), buf);
192 snprintf (buf, sizeof (buf), "%.12g", (*i).angles().ele);
193 speaker->add_property (X_("elevation"), buf);
194 snprintf (buf, sizeof (buf), "%.12g", (*i).angles().length);
195 speaker->add_property (X_("distance"), buf);
197 node->add_child_nocopy (*speaker);
204 Speakers::set_state (const XMLNode& node, int /*version*/)
206 XMLNodeConstIterator i;
207 const XMLProperty* prop;
209 LocaleGuard lg (X_("POSIX"));
214 for (i = node.children().begin(); i != node.children().end(); ++i, ++n) {
215 if ((*i)->name() == X_("Speaker")) {
216 if ((prop = (*i)->property (X_("azimuth"))) == 0) {
217 warning << _("Speaker information is missing azimuth - speaker ignored") << endmsg;
220 a = atof (prop->value());
222 if ((prop = (*i)->property (X_("elevation"))) == 0) {
223 warning << _("Speaker information is missing elevation - speaker ignored") << endmsg;
226 e = atof (prop->value());
228 if ((prop = (*i)->property (X_("distance"))) == 0) {
229 warning << _("Speaker information is missing distance - speaker ignored") << endmsg;
232 d = atof (prop->value());
234 add_speaker (AngularVector (a, e, d));