2 Copyright (C) 2000,2007 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 <sigc++/bind.h>
24 #include "pbd/failed_constructor.h"
25 #include "pbd/xml++.h"
27 #include "ardour/port_insert.h"
28 #include "ardour/plugin.h"
29 #include "ardour/port.h"
30 #include "ardour/route.h"
31 #include "ardour/buffer_set.h"
33 #include "ardour/audioengine.h"
34 #include "ardour/session.h"
35 #include "ardour/types.h"
40 using namespace ARDOUR;
43 PortInsert::PortInsert (Session& s)
44 : IOProcessor (s, string_compose (_("insert %1"), (bitslot = s.next_insert_id()) + 1), "")
47 ProcessorCreated (this); /* EMIT SIGNAL */
50 PortInsert::PortInsert (Session& s, const XMLNode& node)
51 : IOProcessor (s, "unnamed port insert")
53 if (set_state (node)) {
54 throw failed_constructor();
57 ProcessorCreated (this); /* EMIT SIGNAL */
60 PortInsert::~PortInsert ()
68 if (_io->ensure_io(output_streams(), input_streams(), false, this)) { // sic
69 error << _("PortInsert: cannot create ports") << endmsg;
70 throw failed_constructor();
75 PortInsert::run_in_place (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame, nframes_t nframes)
77 if (_io->n_outputs().n_total() == 0) {
83 _io->silence (nframes);
87 _io->deliver_output (bufs, start_frame, end_frame, nframes);
88 _io->collect_input (bufs, nframes);
92 PortInsert::get_state(void)
98 PortInsert::state (bool full)
100 XMLNode& node = IOProcessor::state(full);
102 node.add_property ("type", "port");
103 snprintf (buf, sizeof (buf), "%" PRIu32, bitslot);
104 node.add_property ("bitslot", buf);
110 PortInsert::set_state(const XMLNode& node)
112 XMLNodeList nlist = node.children();
113 XMLNodeIterator niter;
114 XMLPropertyList plist;
115 const XMLProperty *prop;
117 if ((prop = node.property ("type")) == 0) {
118 error << _("XML node describing port insert is missing the `type' field") << endmsg;
122 if (prop->value() != "port") {
123 error << _("non-port insert XML used for port plugin insert") << endmsg;
127 if ((prop = node.property ("bitslot")) == 0) {
128 bitslot = _session.next_insert_id();
130 sscanf (prop->value().c_str(), "%" PRIu32, &bitslot);
131 _session.mark_insert_id (bitslot);
134 const XMLNode* insert_node = &node;
136 // legacy sessions: search for child IOProcessor node
137 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
138 if ((*niter)->name() == "IOProcessor") {
139 insert_node = *niter;
144 IOProcessor::set_state (*insert_node);
150 PortInsert::signal_latency() const
152 /* because we deliver and collect within the same cycle,
153 all I/O is necessarily delayed by at least frames_per_cycle().
155 if the return port for insert has its own latency, we
156 need to take that into account too.
159 return _session.engine().frames_per_cycle() + _io->input_latency();
163 PortInsert::configure_io (ChanCount in, ChanCount out)
165 /* for an insert, processor input corresponds to IO output, and vice versa */
167 if (_io->ensure_io (out, in, false, this) != 0) {
171 return Processor::configure_io (in, out);
175 PortInsert::can_support_io_configuration (const ChanCount& in, ChanCount& out) const