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.
23 #include <pbd/xml++.h>
25 #include <ardour/send.h>
26 #include <ardour/session.h>
27 #include <ardour/port.h>
28 #include <ardour/audio_port.h>
29 #include <ardour/buffer_set.h>
30 #include <ardour/meter.h>
33 using namespace ARDOUR;
36 Send::Send (Session& s, Placement p)
37 : Redirect (s, s.next_send_name(), p)
40 save_state (_("initial state"));
41 RedirectCreated (this); /* EMIT SIGNAL */
44 Send::Send (Session& s, const XMLNode& node)
45 : Redirect (s, "send", PreFader)
49 if (set_state (node)) {
50 throw failed_constructor();
53 save_state (_("initial state"));
54 RedirectCreated (this); /* EMIT SIGNAL */
57 Send::Send (const Send& other)
58 : Redirect (other._session, other._session.next_send_name(), other.placement())
61 save_state (_("initial state"));
62 RedirectCreated (this); /* EMIT SIGNAL */
77 Send::state(bool full)
79 XMLNode *node = new XMLNode("Send");
80 node->add_child_nocopy (Redirect::state(full));
85 Send::set_state(const XMLNode& node)
87 XMLNodeList nlist = node.children();
88 XMLNodeIterator niter;
90 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
91 if ((*niter)->name() == Redirect::state_node_name) {
92 Redirect::set_state (**niter);
97 if (niter == nlist.end()) {
98 error << _("XML node describing a send is missing a Redirect node") << endmsg;
106 Send::run (BufferSet& bufs, jack_nframes_t nframes, jack_nframes_t offset)
110 // we have to copy the input, because IO::deliver_output may alter the buffers
111 // in-place, which a send must never do.
113 BufferSet& sendbufs = _session.get_send_buffers(bufs.count());
115 sendbufs.read_from(bufs, nframes);
116 assert(sendbufs.count() == bufs.count());
117 assert(sendbufs.count() == _outputs.count());
119 IO::deliver_output (sendbufs, nframes, offset);
125 _meter->run(output_buffers(), nframes, offset);
130 silence (nframes, offset);
139 Send::set_metering (bool yn)
144 /* XXX possible thread hazard here */
145 peak_meter().reset();
150 Send::expect_inputs (const ChanCount& expected)
152 if (expected != _expected_inputs) {
153 _expected_inputs = expected;