2 Copyright (C) 2001 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.
27 #include <sigc++/bind.h>
29 #include "pbd/xml++.h"
30 #include "pbd/enumwriter.h"
32 #include "ardour/io_processor.h"
33 #include "ardour/session.h"
34 #include "ardour/utils.h"
35 #include "ardour/send.h"
36 #include "ardour/port_insert.h"
37 #include "ardour/plugin_insert.h"
38 #include "ardour/io.h"
39 #include "ardour/route.h"
44 using namespace ARDOUR;
47 /* create an IOProcessor that proxies to a new IO object */
49 IOProcessor::IOProcessor (Session& s, bool with_input, bool with_output,
50 const string& proc_name, const string io_name, DataType dtype)
51 : Processor(s, proc_name)
53 /* these are true in this constructor whether we actually create the associated
61 _input.reset (new IO(s, io_name.empty() ? proc_name : io_name, IO::Input, dtype));
65 _output.reset (new IO(s, io_name.empty() ? proc_name : io_name, IO::Output, dtype));
69 /* create an IOProcessor that proxies to an existing IO object */
71 IOProcessor::IOProcessor (Session& s, boost::shared_ptr<IO> in, boost::shared_ptr<IO> out,
72 const string& proc_name, DataType dtype)
73 : Processor(s, proc_name)
81 IOProcessor::~IOProcessor ()
87 IOProcessor::set_input (boost::shared_ptr<IO> io)
89 /* CALLER MUST HOLD PROCESS LOCK */
96 IOProcessor::set_output (boost::shared_ptr<IO> io)
98 /* CALLER MUST HOLD PROCESS LOCK */
105 IOProcessor::state (bool full_state)
107 XMLNode& node (Processor::state (full_state));
110 XMLNode& i (_input->state (full_state));
111 // i.name() = X_("output");
112 node.add_child_nocopy (i);
113 node.add_property ("own-input", "yes");
115 node.add_property ("own-input", "no");
117 node.add_property ("input", _input->name());
122 XMLNode& o (_output->state (full_state));
123 // o.name() = X_("output");
124 node.add_child_nocopy (o);
125 node.add_property ("own-output", "yes");
127 node.add_property ("own-output", "no");
129 node.add_property ("output", _output->name());
137 IOProcessor::set_state (const XMLNode& node)
139 const XMLProperty *prop;
140 const XMLNode *io_node = 0;
142 Processor::set_state(node);
144 if ((prop = node.property ("own-input")) != 0) {
145 _own_input = (prop->value() == "yes");
148 if ((prop = node.property ("own-output")) != 0) {
149 _own_output = (prop->value() == "yes");
152 cerr << _name << " own input = " << _own_input << " output = " << _own_output << endl;
154 /* don't attempt to set state for a proxied IO that we don't own */
156 XMLNodeList nlist = node.children();
157 XMLNodeIterator niter;
160 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
161 if ((*niter)->name() == "input") {
168 _input->set_state(*io_node);
170 // legacy sessions: use IO name
171 if ((prop = node.property ("name")) == 0) {
172 set_name (_input->name());
176 error << _("XML node describing an IOProcessor is missing an IO node") << endmsg;
182 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
183 if ((*niter)->name() == "output") {
190 _output->set_state(*io_node);
192 // legacy sessions: use IO name
193 if ((prop = node.property ("name")) == 0) {
194 set_name (_output->name());
203 IOProcessor::silence (nframes_t nframes)
205 if (_own_output && _output) {
206 _output->silence (nframes);
211 IOProcessor::output_streams() const
213 return _output ? _output->n_ports() : ChanCount::ZERO;
217 IOProcessor::input_streams () const
219 return _input ? _input->n_ports() : ChanCount::ZERO;
223 IOProcessor::natural_output_streams() const
225 return _output ? _output->n_ports() : ChanCount::ZERO;
229 IOProcessor::natural_input_streams () const
231 return _input ? _input->n_ports() : ChanCount::ZERO;
235 IOProcessor::set_name (const std::string& name)
237 bool ret = SessionObject::set_name (name);
239 if (ret && _own_input && _input) {
240 ret = _input->set_name (name);
243 if (ret && _own_output && _output) {
244 ret = _output->set_name (name);