2 Copyright (C) 2000 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 <pbd/xml++.h>
24 #include <ardour/send.h>
25 #include <ardour/session.h>
26 #include <ardour/port.h>
27 #include <ardour/audio_port.h>
28 #include <ardour/buffer_set.h>
29 #include <ardour/meter.h>
32 using namespace ARDOUR;
35 Send::Send (Session& s, Placement p)
36 : Redirect (s, string_compose (_("send %1"), (bitslot = s.next_send_id()) + 1), p)
39 InsertCreated (this); /* EMIT SIGNAL */
42 Send::Send (Session& s, const XMLNode& node)
43 : Redirect (s, "send", PreFader)
47 if (set_state (node)) {
48 throw failed_constructor();
51 InsertCreated (this); /* EMIT SIGNAL */
54 Send::Send (const Send& other)
55 : Redirect (other._session, string_compose (_("send %1"), (bitslot = other._session.next_send_id()) + 1), other.placement())
58 InsertCreated (this); /* EMIT SIGNAL */
73 Send::state(bool full)
75 XMLNode& node = Redirect::state(full);
77 node.add_property ("type", "send");
78 snprintf (buf, sizeof (buf), "%" PRIu32, bitslot);
79 node.add_property ("bitslot", buf);
85 Send::set_state(const XMLNode& node)
87 XMLNodeList nlist = node.children();
88 XMLNodeIterator niter;
89 const XMLProperty* prop;
91 if ((prop = node.property ("bitslot")) == 0) {
92 bitslot = _session.next_send_id();
94 sscanf (prop->value().c_str(), "%" PRIu32, &bitslot);
95 _session.mark_send_id (bitslot);
98 const XMLNode* insert_node = &node;
100 /* Send has regular IO automation (gain, pan) */
102 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
103 if ((*niter)->name() == "Redirect") {
104 insert_node = *niter;
105 } else if ((*niter)->name() == X_("Automation")) {
106 _io->set_automation_state (*(*niter));
110 Redirect::set_state (*insert_node);
116 Send::run (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame, nframes_t nframes, nframes_t offset)
120 // we have to copy the input, because IO::deliver_output may alter the buffers
121 // in-place, which a send must never do.
123 BufferSet& sendbufs = _session.get_send_buffers(bufs.count());
125 sendbufs.read_from(bufs, nframes);
126 assert(sendbufs.count() == bufs.count());
128 _io->deliver_output (sendbufs, start_frame, end_frame, nframes, offset);
131 if (_io->_gain == 0) {
132 _io->_meter->reset();
134 _io->_meter->run(_io->output_buffers(), start_frame, end_frame, nframes, offset);
139 _io->silence (nframes, offset);
142 _io->_meter->reset();
148 Send::set_metering (bool yn)
153 /* XXX possible thread hazard here */
154 _io->peak_meter().reset();
159 Send::can_support_input_configuration (ChanCount in) const
161 if (_io->input_maximum() == ChanCount::INFINITE && _io->output_maximum() == ChanCount::INFINITE) {
163 /* not configured yet */
165 return true; /* we can support anything the first time we're asked */
169 /* the "input" config for a port insert corresponds to how
170 many output ports it will have.
173 if (_io->output_maximum() == in) {
183 Send::output_for_input_configuration (ChanCount in) const
185 // from the internal (Insert) perspective a Send does not modify its input whatsoever
190 Send::configure_io (ChanCount in, ChanCount out)
192 /* we're transparent no matter what. fight the power. */
196 _io->set_output_maximum (in);
197 _io->set_output_minimum (in);
198 _io->set_input_maximum (ChanCount::ZERO);
199 _io->set_input_minimum (ChanCount::ZERO);
201 bool success = _io->ensure_io (ChanCount::ZERO, in, false, this) == 0;
204 Insert::configure_io(in, out);
213 Send::output_streams() const
215 return _io->n_outputs ();
219 Send::input_streams() const
221 return _io->n_outputs (); // (sic)