346 lines
7.9 KiB
C++
346 lines
7.9 KiB
C++
/*
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* Copyright (C) 2020 Luciano Iam <lucianito@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <boost/lexical_cast.hpp>
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#include "ardour/dB.h"
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#include "ardour/meter.h"
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#include "ardour/plugin_insert.h"
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#include "ardour/session.h"
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#include "pbd/controllable.h"
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#include "mixer.h"
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using namespace ARDOUR;
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using namespace ArdourSurface;
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ArdourMixerPlugin::ArdourMixerPlugin (boost::shared_ptr<ARDOUR::PluginInsert> insert)
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: _insert (insert)
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{}
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ArdourMixerPlugin::~ArdourMixerPlugin ()
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{
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drop_connections ();
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}
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boost::shared_ptr<ARDOUR::PluginInsert>
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ArdourMixerPlugin::insert () const
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{
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return _insert;
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}
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bool
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ArdourMixerPlugin::enabled () const
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{
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return insert ()->enabled ();
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}
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void
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ArdourMixerPlugin::set_enabled (bool enabled)
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{
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insert ()->enable (enabled);
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}
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uint32_t
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ArdourMixerPlugin::param_count () const
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{
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return _insert->plugin ()->parameter_count ();
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}
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TypedValue
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ArdourMixerPlugin::param_value (uint32_t param_id)
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{
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return param_value (param_control (param_id));
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}
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void
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ArdourMixerPlugin::set_param_value (uint32_t param_id, TypedValue value)
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{
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boost::shared_ptr<AutomationControl> control = param_control (param_id);
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ParameterDescriptor pd = control->desc ();
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double dbl_val;
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if (pd.toggled) {
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dbl_val = static_cast<double> (static_cast<bool> (value));
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} else if (pd.enumeration || pd.integer_step) {
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dbl_val = static_cast<double> (static_cast<int> (value));
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} else {
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dbl_val = static_cast<double> (value);
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}
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control->set_value (dbl_val, PBD::Controllable::NoGroup);
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}
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boost::shared_ptr<ARDOUR::AutomationControl>
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ArdourMixerPlugin::param_control (uint32_t param_id) const
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{
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bool ok = false;
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boost::shared_ptr<Plugin> plugin = _insert->plugin ();
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uint32_t control_id = plugin->nth_parameter (param_id, ok);
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if (!ok || !plugin->parameter_is_input (control_id)) {
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throw ArdourMixerNotFoundException ("invalid automation control for param id = "
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+ boost::lexical_cast<std::string>(param_id));
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}
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return _insert->automation_control (Evoral::Parameter (PluginAutomation, 0, control_id));
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}
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TypedValue
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ArdourMixerPlugin::param_value (boost::shared_ptr<ARDOUR::AutomationControl> control)
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{
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ParameterDescriptor pd = control->desc ();
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TypedValue value = TypedValue ();
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if (pd.toggled) {
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value = TypedValue (static_cast<bool> (control->get_value ()));
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} else if (pd.enumeration || pd.integer_step) {
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value = TypedValue (static_cast<int> (control->get_value ()));
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} else {
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value = TypedValue (control->get_value ());
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}
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return value;
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}
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ArdourMixerStrip::ArdourMixerStrip (boost::shared_ptr<ARDOUR::Stripable> stripable, PBD::EventLoop* event_loop)
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: _stripable (stripable)
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{
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boost::shared_ptr<Route> route = boost::dynamic_pointer_cast<Route> (_stripable);
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if (!route) {
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return;
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}
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for (uint32_t plugin_id = 0;; ++plugin_id) {
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boost::shared_ptr<Processor> processor = route->nth_plugin (plugin_id);
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if (!processor) {
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break;
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}
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boost::shared_ptr<PluginInsert> insert = boost::static_pointer_cast<PluginInsert> (processor);
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if (insert) {
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_plugins[plugin_id] = boost::shared_ptr<ArdourMixerPlugin> (new ArdourMixerPlugin (insert));
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insert->DropReferences.connect (*_plugins[plugin_id], MISSING_INVALIDATOR,
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boost::bind (&ArdourMixerStrip::on_drop_plugin, this, plugin_id), event_loop);
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}
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}
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}
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ArdourMixerStrip::~ArdourMixerStrip ()
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{
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drop_connections ();
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}
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boost::shared_ptr<ARDOUR::Stripable>
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ArdourMixerStrip::stripable () const
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{
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return _stripable;
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}
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ArdourMixerPlugin&
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ArdourMixerStrip::plugin (uint32_t plugin_id)
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{
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if (_plugins.find (plugin_id) == _plugins.end ()) {
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throw ArdourMixerNotFoundException ("plugin id = " + boost::lexical_cast<std::string>(plugin_id) + " not found");
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}
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return *_plugins[plugin_id];
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}
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ArdourMixerStrip::PluginMap&
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ArdourMixerStrip::plugins ()
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{
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return _plugins;
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}
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double
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ArdourMixerStrip::gain () const
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{
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double val = _stripable->gain_control ()->get_value ();
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return is_midi () ? static_cast<double> (to_velocity (val)) : to_db (val);
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}
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void
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ArdourMixerStrip::set_gain (double gain)
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{
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double val = is_midi () ? from_velocity (static_cast<int> (gain)) : from_db (gain);
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_stripable->gain_control ()->set_value (val, PBD::Controllable::NoGroup);
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}
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bool
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ArdourMixerStrip::has_pan () const
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{
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return _stripable->pan_azimuth_control () != 0;
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}
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double
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ArdourMixerStrip::pan () const
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{
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boost::shared_ptr<AutomationControl> ac = _stripable->pan_azimuth_control ();
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if (!ac) {
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throw ArdourMixerNotFoundException ("strip has no panner");
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}
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return ac->internal_to_interface (ac->get_value ());
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}
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void
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ArdourMixerStrip::set_pan (double value)
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{
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boost::shared_ptr<AutomationControl> ac = _stripable->pan_azimuth_control ();
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if (!ac) {
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return;
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}
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ac->set_value (ac->interface_to_internal (value), PBD::Controllable::NoGroup);
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}
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bool
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ArdourMixerStrip::mute () const
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{
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return _stripable->mute_control ()->muted ();
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}
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void
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ArdourMixerStrip::set_mute (bool mute)
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{
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_stripable->mute_control ()->set_value (mute ? 1.0 : 0.0, PBD::Controllable::NoGroup);
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}
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float
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ArdourMixerStrip::meter_level_db () const
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{
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boost::shared_ptr<PeakMeter> meter = _stripable->peak_meter ();
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return meter ? meter->meter_level (0, MeterMCP) : -193;
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}
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std::string
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ArdourMixerStrip::name () const
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{
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return _stripable->name ();
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}
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bool
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ArdourMixerStrip::is_midi () const
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{
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return _stripable->presentation_info ().flags () & PresentationInfo::Flag::MidiTrack;
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}
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void
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ArdourMixerStrip::on_drop_plugin (uint32_t plugin_id)
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{
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_plugins.erase (plugin_id);
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}
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double
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ArdourMixerStrip::to_db (double k)
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{
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if (k == 0) {
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return -std::numeric_limits<double>::infinity ();
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}
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float db = accurate_coefficient_to_dB (static_cast<float> (k));
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return static_cast<double> (db);
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}
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double
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ArdourMixerStrip::from_db (double db)
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{
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if (db < -192) {
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return 0;
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}
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float k = dB_to_coefficient (static_cast<float> (db));
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return static_cast<double> (k);
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}
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int
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ArdourMixerStrip::to_velocity (double k)
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{
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return static_cast<int> (127.0 * k / 2.0);
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}
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double
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ArdourMixerStrip::from_velocity (int k)
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{
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return 2.0 * static_cast<double> (k) / 127.0;
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}
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int
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ArdourMixer::start ()
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{
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/* take a snapshot of current strips */
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StripableList strips;
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session ().get_stripables (strips, PresentationInfo::AllStripables);
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uint32_t strip_id = 0;
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for (StripableList::iterator it = strips.begin (); it != strips.end (); ++it) {
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_strips[strip_id] = boost::shared_ptr<ArdourMixerStrip> (new ArdourMixerStrip (*it, event_loop ()));
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(*it)->DropReferences.connect (*_strips[strip_id], MISSING_INVALIDATOR,
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boost::bind (&ArdourMixer::on_drop_strip, this, strip_id), event_loop ());
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strip_id++;
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}
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return 0;
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}
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int
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ArdourMixer::stop ()
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{
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Glib::Threads::Mutex::Lock lock (mixer ().mutex ());
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_strips.clear ();
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return 0;
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}
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ArdourMixer::StripMap&
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ArdourMixer::strips ()
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{
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return _strips;
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}
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ArdourMixerStrip&
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ArdourMixer::strip (uint32_t strip_id)
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{
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if (_strips.find (strip_id) == _strips.end ()) {
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throw ArdourMixerNotFoundException ("strip id = " + boost::lexical_cast<std::string>(strip_id) + " not found");
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}
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return *_strips[strip_id];
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}
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void
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ArdourMixer::on_drop_strip (uint32_t strip_id)
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{
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Glib::Threads::Mutex::Lock lock (_mutex);
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_strips.erase (strip_id);
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}
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Glib::Threads::Mutex&
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ArdourMixer::mutex ()
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{
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return _mutex;
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}
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