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livetrax/libs/ardour/speakers.cc

287 lines
7.6 KiB
C++

/*
* Copyright (C) 2010-2011 David Robillard <d@drobilla.net>
* Copyright (C) 2010-2016 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2014-2016 Robin Gareus <robin@gareus.org>
* Copyright (C) 2016 Tim Mayberry <mojofunk@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "pbd/error.h"
#include "ardour/speaker.h"
#include "ardour/speakers.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace std;
Speaker::Speaker (int i, const AngularVector& position)
: id (i)
{
move (position);
}
Speaker::Speaker (Speaker const & o)
: id (o.id)
, _coords (o._coords)
, _angles (o._angles)
{
}
Speaker &
Speaker::operator= (Speaker const & o)
{
if (&o == this) {
return *this;
}
id = o.id;
_coords = o._coords;
_angles = o._angles;
return *this;
}
void
Speaker::move (const AngularVector& new_position)
{
_angles = new_position;
_angles.cartesian (_coords);
PositionChanged (); /* EMIT SIGNAL */
}
Speakers::Speakers ()
{
}
Speakers::Speakers (const Speakers& s)
: Stateful ()
{
_speakers = s._speakers;
}
Speakers::~Speakers ()
{
}
Speakers&
Speakers::operator= (const Speakers& s)
{
if (&s != this) {
_speakers = s._speakers;
}
return *this;
}
void
Speakers::dump_speakers (ostream& o)
{
for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
o << "Speaker " << (*i).id << " @ "
<< (*i).coords().x << ", " << (*i).coords().y << ", " << (*i).coords().z
<< " azimuth " << (*i).angles().azi
<< " elevation " << (*i).angles().ele
<< " distance " << (*i).angles().length
<< endl;
}
}
void
Speakers::clear_speakers ()
{
_speakers.clear ();
update ();
}
int
Speakers::add_speaker (const AngularVector& position)
{
int id = _speakers.size();
_speakers.push_back (Speaker (id, position));
update ();
Changed ();
return id;
}
void
Speakers::remove_speaker (int id)
{
for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
if (i->id == id) {
i = _speakers.erase (i);
update ();
break;
}
}
}
void
Speakers::move_speaker (int id, const AngularVector& new_position)
{
for (vector<Speaker>::iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
if ((*i).id == id) {
(*i).move (new_position);
update ();
break;
}
}
}
void
Speakers::setup_default_speakers (uint32_t n)
{
double o = 180.0;
/* default assignment of speaker position for n speakers */
assert (n>0);
switch (n) {
case 1:
add_speaker (AngularVector (o +0.0, 0.0));
break;
case 2:
add_speaker (AngularVector (o +60.0, 0.0));
add_speaker (AngularVector (o -60.0, 0.0));
break;
case 3:
add_speaker (AngularVector (o +60.0, 0.0));
add_speaker (AngularVector (o -60.0, 0.0));
add_speaker (AngularVector (o +180.0, 0.0));
break;
case 4:
/* 4.0 with regular spacing */
add_speaker (AngularVector (o +45.0, 0.0));
add_speaker (AngularVector (o -45.0, 0.0));
add_speaker (AngularVector (o +135.0, 0.0));
add_speaker (AngularVector (o -135.0, 0.0));
break;
case 5:
/* 5.0 with regular spacing */
add_speaker (AngularVector (o +72.0, 0.0));
add_speaker (AngularVector (o -72.0, 0.0));
add_speaker (AngularVector (o +0.0, 0.0));
add_speaker (AngularVector (o +144.0, 0.0));
add_speaker (AngularVector (o -144.0, 0.0));
break;
case 6:
/* 6.0 with regular spacing */
add_speaker (AngularVector (o +60.0, 0.0));
add_speaker (AngularVector (o -60.0, 0.0));
add_speaker (AngularVector (o +0.0, 0.0));
add_speaker (AngularVector (o +120.0, 0.0));
add_speaker (AngularVector (o -120.0, 0.0));
add_speaker (AngularVector (o +180.0, 0.0));
break;
case 7:
/* 7.0 with regular front spacing */
add_speaker (AngularVector (o +45.0, 0.0));
add_speaker (AngularVector (o -45.0, 0.0));
add_speaker (AngularVector (o +0.0, 0.0));
add_speaker (AngularVector (o +90.0, 0.0));
add_speaker (AngularVector (o -90.0, 0.0));
add_speaker (AngularVector (o +150.0, 0.0));
add_speaker (AngularVector (o -150.0, 0.0));
break;
case 10:
/* 5+4 with 45°/90° spacing */
add_speaker (AngularVector (o +45.0, 0.0));
add_speaker (AngularVector (o -45.0, 0.0));
add_speaker (AngularVector (o +0.0, 0.0));
add_speaker (AngularVector (o +135.0, 0.0));
add_speaker (AngularVector (o -135.0, 0.0));
add_speaker (AngularVector (o +45.0, 60.0));
add_speaker (AngularVector (o -45.0, 60.0));
add_speaker (AngularVector (o +135.0, 60.0));
add_speaker (AngularVector (o -135.0, 60.0));
add_speaker (AngularVector (o +0.0, 90.0));
break;
default:
{
double degree_step = 360.0 / n;
double deg;
uint32_t i;
/* even number of speakers? make sure the top two are either side of "top".
otherwise, just start at the "top" (90.0 degrees) and rotate around
*/
if (n % 2) {
deg = 360 + o + degree_step;
} else {
deg = 360 + o;
}
for (i = 0; i < n; ++i, deg -= degree_step) {
add_speaker (AngularVector (fmod(deg, 360), 0.0));
}
}
}
}
XMLNode&
Speakers::get_state () const
{
XMLNode* node = new XMLNode (X_("Speakers"));
for (vector<Speaker>::const_iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
XMLNode* speaker = new XMLNode (X_("Speaker"));
speaker->set_property (X_("azimuth"), (*i).angles().azi);
speaker->set_property (X_("elevation"), (*i).angles().ele);
speaker->set_property (X_("distance"), (*i).angles().length);
node->add_child_nocopy (*speaker);
}
return *node;
}
int
Speakers::set_state (const XMLNode& node, int /*version*/)
{
XMLNodeConstIterator i;
_speakers.clear ();
for (i = node.children().begin(); i != node.children().end(); ++i) {
if ((*i)->name() == X_("Speaker")) {
double a, e, d;
if (!(*i)->get_property (X_("azimuth"), a) ||
!(*i)->get_property (X_("elevation"), e) ||
!(*i)->get_property (X_("distance"), d)) {
warning << _("Speaker information is missing - speaker ignored") << endmsg;
continue;
}
add_speaker (AngularVector (a, e, d));
}
}
update ();
return 0;
}