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.
28 #include "pbd/xml++.h"
29 #include "pbd/enumwriter.h"
31 #include "ardour/io_processor.h"
32 #include "ardour/session.h"
33 #include "ardour/utils.h"
34 #include "ardour/send.h"
35 #include "ardour/port_insert.h"
36 #include "ardour/plugin_insert.h"
37 #include "ardour/io.h"
38 #include "ardour/route.h"
43 using namespace ARDOUR;
46 /* create an IOProcessor that proxies to a new IO object */
48 IOProcessor::IOProcessor (Session& s, bool with_input, bool with_output,
49 const string& proc_name, const string io_name, DataType dtype)
50 : Processor(s, proc_name)
52 /* these are true in this constructor whether we actually create the associated
60 _input.reset (new IO(s, io_name.empty() ? proc_name : io_name, IO::Input, dtype));
64 _output.reset (new IO(s, io_name.empty() ? proc_name : io_name, IO::Output, dtype));
68 /* create an IOProcessor that proxies to an existing IO object */
70 IOProcessor::IOProcessor (Session& s, boost::shared_ptr<IO> in, boost::shared_ptr<IO> out,
71 const string& proc_name, DataType /*dtype*/)
72 : Processor(s, proc_name)
89 IOProcessor::~IOProcessor ()
94 IOProcessor::set_input (boost::shared_ptr<IO> io)
96 /* CALLER MUST HOLD PROCESS LOCK */
103 IOProcessor::set_output (boost::shared_ptr<IO> io)
105 /* CALLER MUST HOLD PROCESS LOCK */
112 IOProcessor::state (bool full_state)
114 XMLNode& node (Processor::state (full_state));
117 node.add_property ("own-input", "yes");
119 XMLNode& i (_input->state (full_state));
120 // i.name() = X_("output");
121 node.add_child_nocopy (i);
124 node.add_property ("own-input", "no");
126 node.add_property ("input", _input->name());
131 node.add_property ("own-output", "yes");
133 XMLNode& o (_output->state (full_state));
134 node.add_child_nocopy (o);
137 node.add_property ("own-output", "no");
139 node.add_property ("output", _output->name());
147 IOProcessor::set_state (const XMLNode& node, int version)
149 if (version < 3000) {
150 return set_state_2X (node, version);
153 const XMLProperty *prop;
154 const XMLNode *io_node = 0;
156 Processor::set_state(node, version);
159 if ((prop = node.property ("own-input")) != 0) {
160 _own_input = string_is_affirmative (prop->value());
163 if ((prop = node.property ("own-output")) != 0) {
164 _own_output = string_is_affirmative (prop->value());
167 /* don't attempt to set state for a proxied IO that we don't own */
169 XMLNodeList nlist = node.children();
170 XMLNodeIterator niter;
171 const string instr = enum_2_string (IO::Input);
172 const string outstr = enum_2_string (IO::Output);
175 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
176 const XMLProperty* prop;
177 if ((prop = (*niter)->property ("name")) != 0) {
178 if (_name == prop->value()) {
179 if ((prop = (*niter)->property ("direction")) != 0) {
180 if (prop->value() == instr) {
190 _input->set_state(*io_node, version);
192 // legacy sessions: use IO name
193 if ((prop = node.property ("name")) == 0) {
194 set_name (_input->name());
198 /* no input, which is OK */
204 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
205 if ((*niter)->name() == "IO") {
206 const XMLProperty* prop;
207 if ((prop = (*niter)->property ("name")) != 0) {
208 if (_name == prop->value()) {
209 if ((prop = (*niter)->property ("direction")) != 0) {
210 if (prop->value() == outstr) {
221 _output->set_state(*io_node, version);
223 // legacy sessions: use IO name
224 if ((prop = node.property ("name")) == 0) {
225 set_name (_output->name());
228 /* no output, which is OK */
236 IOProcessor::set_state_2X (const XMLNode& node, int version)
238 _own_input = _own_output = true;
240 Processor::set_state_2X (node, version);
246 IOProcessor::silence (framecnt_t nframes)
248 if (_own_output && _output) {
249 _output->silence (nframes);
254 IOProcessor::increment_port_buffer_offset (pframes_t offset)
256 if (_own_output && _output) {
257 _output->increment_port_buffer_offset (offset);
262 IOProcessor::natural_output_streams() const
264 return _output ? _output->n_ports() : ChanCount::ZERO;
268 IOProcessor::natural_input_streams () const
270 return _input ? _input->n_ports() : ChanCount::ZERO;
274 IOProcessor::set_name (const std::string& name)
276 bool ret = SessionObject::set_name (name);
278 if (ret && _own_input && _input) {
279 ret = _input->set_name (name);
282 if (ret && _own_output && _output) {
283 ret = _output->set_name (name);
290 IOProcessor::feeds (boost::shared_ptr<Route> other) const
292 return _output && _output->connected_to (other->input());
296 IOProcessor::disconnect ()
299 _input->disconnect (this);
303 _output->disconnect (this);
307 /** Set up the XML description of a send so that we will not
308 * reset its name or bitslot during ::set_state()
309 * @param state XML send state.
310 * @param session Session.
313 IOProcessor::prepare_for_reset (XMLNode &state, const std::string& name)
315 state.add_property ("ignore-bitslot", "1");
316 state.add_property ("ignore-name", "1");
318 XMLNode* io_node = state.child (IO::state_node_name.c_str());
321 IO::prepare_for_reset (*io_node, name);