2 Copyright (C) 2016 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.
22 #include <glibmm/threads.h>
24 #include "pbd/convert.h"
25 #include "pbd/error.h"
26 #include "pbd/xml++.h"
28 #include "ardour/slavable.h"
29 #include "ardour/slavable_automation_control.h"
30 #include "ardour/vca.h"
31 #include "ardour/vca_manager.h"
36 using namespace ARDOUR;
38 std::string Slavable::xml_node_name = X_("Slavable");
39 PBD::Signal1<void,VCAManager*> Slavable::Assign; /* signal sent once
40 * assignment is possible */
44 Assign.connect_same_thread (assign_connection, boost::bind (&Slavable::do_assign, this, _1));
48 Slavable::get_state () const
50 XMLNode* node = new XMLNode (xml_node_name);
53 Glib::Threads::RWLock::ReaderLock lm (master_lock);
54 for (std::set<uint32_t>::const_iterator i = _masters.begin(); i != _masters.end(); ++i) {
55 child = new XMLNode (X_("Master"));
56 child->set_property (X_("number"), *i);
57 node->add_child_nocopy (*child);
64 Slavable::set_state (XMLNode const& node, int version)
66 if (node.name() != xml_node_name) {
70 XMLNodeList const& children (node.children());
71 Glib::Threads::RWLock::WriterLock lm (master_lock);
73 for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
74 if ((*i)->name() == X_("Master")) {
76 if ((*i)->get_property (X_("number"), n)) {
86 Slavable::do_assign (VCAManager* manager)
88 std::vector<boost::shared_ptr<VCA> > vcas;
91 Glib::Threads::RWLock::ReaderLock lm (master_lock);
93 for (std::set<uint32_t>::const_iterator i = _masters.begin(); i != _masters.end(); ++i) {
94 boost::shared_ptr<VCA> v = manager->vca_by_number (*i);
98 warning << string_compose (_("Master #%1 not found, assignment lost"), *i) << endmsg;
103 /* now that we've released the lock, we can do the assignments */
107 for (std::vector<boost::shared_ptr<VCA> >::iterator v = vcas.begin(); v != vcas.end(); ++v) {
111 SlavableControlList scl = slavables ();
112 for (SlavableControlList::iterator i = scl.begin(); i != scl.end(); ++i) {
113 (*i)->use_saved_master_ratios ();
117 assign_connection.disconnect ();
123 Slavable::assign (boost::shared_ptr<VCA> v)
127 Glib::Threads::RWLock::WriterLock lm (master_lock);
128 if (assign_controls (v)) {
129 _masters.insert (v->number());
132 /* Do NOT use ::unassign() because it will store a
133 * boost::shared_ptr<VCA> in the functor, leaving a dangling ref to the
138 v->Drop.connect_same_thread (unassign_connections, boost::bind (&Slavable::weak_unassign, this, boost::weak_ptr<VCA>(v)));
139 v->DropReferences.connect_same_thread (unassign_connections, boost::bind (&Slavable::weak_unassign, this, boost::weak_ptr<VCA>(v)));
142 AssignmentChange (v, true);
146 Slavable::weak_unassign (boost::weak_ptr<VCA> v)
148 boost::shared_ptr<VCA> sv (v.lock());
155 Slavable::unassign (boost::shared_ptr<VCA> v)
158 Glib::Threads::RWLock::WriterLock lm (master_lock);
160 unassign_controls (v);
162 _masters.erase (v->number());
167 AssignmentChange (v, false);
171 Slavable::assign_controls (boost::shared_ptr<VCA> vca)
174 SlavableControlList scl = slavables ();
175 for (SlavableControlList::iterator i = scl.begin(); i != scl.end(); ++i) {
176 rv |= assign_control (vca, *i);
182 Slavable::unassign_controls (boost::shared_ptr<VCA> vca)
184 SlavableControlList scl = slavables ();
185 for (SlavableControlList::iterator i = scl.begin(); i != scl.end(); ++i) {
186 unassign_control (vca, *i);
191 Slavable::assign_control (boost::shared_ptr<VCA> vca, boost::shared_ptr<SlavableAutomationControl> slave)
193 boost::shared_ptr<AutomationControl> master;
194 master = vca->automation_control (slave->parameter());
198 slave->add_master (master);
203 Slavable::unassign_control (boost::shared_ptr<VCA> vca, boost::shared_ptr<SlavableAutomationControl> slave)
206 /* unassign from all */
207 slave->clear_masters ();
209 boost::shared_ptr<AutomationControl> master;
210 master = vca->automation_control (slave->parameter());
212 slave->remove_master (master);