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livetrax/libs/surfaces/osc/osc_cue_observer.cc

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/*
Copyright (C) 2009 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "boost/lambda/lambda.hpp"
#include "pbd/control_math.h"
#include "ardour/track.h"
#include "ardour/dB.h"
#include "ardour/meter.h"
#include "osc.h"
#include "osc_cue_observer.h"
#include "pbd/i18n.h"
using namespace std;
using namespace PBD;
using namespace ARDOUR;
using namespace ArdourSurface;
OSCCueObserver::OSCCueObserver (boost::shared_ptr<Stripable> s, std::vector<boost::shared_ptr<ARDOUR::Stripable> >& snds, lo_address a)
: sends (snds)
, _strip (s)
, tick_enable (false)
{
addr = lo_address_new (lo_address_get_hostname(a) , lo_address_get_port(a));
_strip->PropertyChanged.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::name_changed, this, boost::lambda::_1, 0), OSC::instance());
name_changed (ARDOUR::Properties::name, 0);
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_strip->mute_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::send_change_message, this, X_("/cue/mute"), 0, _strip->mute_control()), OSC::instance());
send_change_message ("/cue/mute", 0, _strip->mute_control());
gain_timeout.push_back (0);
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_strip->gain_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::send_gain_message, this, 0, _strip->gain_control()), OSC::instance());
send_gain_message (0, _strip->gain_control());
send_init ();
tick_enable = true;
tick ();
}
OSCCueObserver::~OSCCueObserver ()
{
strip_connections.drop_connections ();
send_end ();
// all strip buttons should be off and faders 0 and etc.
text_with_id ("/cue/name", 0, " ");
clear_strip ("/cue/mute", 0);
clear_strip ("/cue/fader", 0);
clear_strip ("/cue/signal", 0);
lo_address_free (addr);
}
void
OSCCueObserver::tick ()
{
if (!tick_enable) {
return;
}
float now_meter;
if (_strip->peak_meter()) {
now_meter = _strip->peak_meter()->meter_level(0, MeterMCP);
} else {
now_meter = -193;
}
if (now_meter < -120) now_meter = -193;
if (_last_meter != now_meter) {
string path = "/cue/signal";
lo_message msg = lo_message_new ();
float signal;
if (now_meter < -40) {
signal = 0;
} else {
signal = 1;
}
lo_message_add_float (msg, signal);
lo_send_message (addr, path.c_str(), msg);
lo_message_free (msg);
}
_last_meter = now_meter;
for (uint32_t i = 0; i < gain_timeout.size(); i++) {
if (gain_timeout[i]) {
if (gain_timeout[i] == 1) {
name_changed (ARDOUR::Properties::name, i);
}
gain_timeout[i]--;
}
}
}
void
OSCCueObserver::send_init()
{
for (uint32_t i = 0; i < sends.size(); i++) {
boost::shared_ptr<Route> r = boost::dynamic_pointer_cast<Route> (sends[i]);
boost::shared_ptr<Send> send = r->internal_send_for (boost::dynamic_pointer_cast<Route> (_strip));
if (r) {
r->processors_changed.connect (send_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::send_restart, this), OSC::instance());
}
if (send) {
// send name
if (r) {
sends[i]->PropertyChanged.connect (send_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::name_changed, this, boost::lambda::_1, i + 1), OSC::instance());
name_changed (ARDOUR::Properties::name, i + 1);
}
if (send->gain_control()) {
gain_timeout.push_back (0);
send->gain_control()->Changed.connect (send_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::send_gain_message, this, i + 1, send->gain_control()), OSC::instance());
send_gain_message (i + 1, send->gain_control());
}
boost::shared_ptr<Processor> proc = boost::dynamic_pointer_cast<Processor> (send);
proc->ActiveChanged.connect (send_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::send_enabled_message, this, X_("/cue/send_enable"), i + 1, proc->enabled()), OSC::instance());
send_enabled_message (X_("/cue/send/enable"), i + 1, proc->enabled());
}
}
}
void
OSCCueObserver::send_end ()
{
send_connections.drop_connections ();
for (uint32_t i = 1; i <= sends.size(); i++) {
clear_strip (string_compose ("/cue/send/fader/%1", i), 0);
clear_strip (string_compose ("/cue/send/enable/%1", i), 0);
text_with_id ("/cue/send/name", i, " ");
}
}
void
OSCCueObserver::send_restart ()
{
tick_enable = false;
send_end();
send_init();
tick_enable = true;
}
void
OSCCueObserver::name_changed (const PBD::PropertyChange& what_changed, uint32_t id)
{
if (!what_changed.contains (ARDOUR::Properties::name)) {
return;
}
if (!_strip) {
return;
}
if (id) {
text_with_id ("/cue/send/name", id, sends[id - 1]->name());
} else {
text_with_id ("/cue/name", 0, _strip->name());
}
}
void
OSCCueObserver::send_change_message (string path, uint32_t id, boost::shared_ptr<Controllable> controllable)
{
lo_message msg = lo_message_new ();
if (id) {
path = string_compose("%1/%2", path, id);
}
float val = controllable->get_value();
lo_message_add_float (msg, (float) controllable->internal_to_interface (val));
lo_send_message (addr, path.c_str(), msg);
lo_message_free (msg);
}
void
OSCCueObserver::text_with_id (string path, uint32_t id, string val)
{
lo_message msg = lo_message_new ();
if (id) {
path = string_compose("%1/%2", path, id);
}
lo_message_add_string (msg, val.c_str());
lo_send_message (addr, path.c_str(), msg);
lo_message_free (msg);
}
void
OSCCueObserver::send_gain_message (uint32_t id, boost::shared_ptr<Controllable> controllable)
{
string path = "/cue";
if (id) {
path = "/cue/send";
}
text_with_id (string_compose ("%1/name", path), id, string_compose ("%1%2%3", std::fixed, std::setprecision(2), accurate_coefficient_to_dB (controllable->get_value())));
path = string_compose ("%1/fader", path);
if (id) {
path = string_compose ("%1/%2", path, id);
}
lo_message msg = lo_message_new ();
lo_message_add_float (msg, gain_to_position (controllable->get_value())); // XXX use internal_to_interface
gain_timeout[id] = 8;
lo_send_message (addr, path.c_str(), msg);
lo_message_free (msg);
}
void
OSCCueObserver::send_enabled_message (std::string path, uint32_t id, bool enabled)
{
lo_message msg = lo_message_new ();
if (id) {
path = string_compose("%1/%2", path, id);
}
lo_message_add_float (msg, (float) enabled);
lo_send_message (addr, path.c_str(), msg);
lo_message_free (msg);
}
void
OSCCueObserver::clear_strip (string path, float val)
{
lo_message msg = lo_message_new ();
lo_message_add_float (msg, val);
lo_send_message (addr, path.c_str(), msg);
lo_message_free (msg);
}