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 RedirectCreated (this); /* EMIT SIGNAL */
43 Send::Send (Session& s, const XMLNode& node)
44 : Redirect (s, "send", PreFader)
48 if (set_state (node)) {
49 throw failed_constructor();
52 RedirectCreated (this); /* EMIT SIGNAL */
55 Send::Send (const Send& other)
56 : Redirect (other._session, other._session.next_send_name(), other.placement())
59 RedirectCreated (this); /* EMIT SIGNAL */
74 Send::state(bool full)
76 XMLNode *node = new XMLNode("Send");
77 node->add_child_nocopy (Redirect::state (full));
82 Send::set_state(const XMLNode& node)
84 XMLNodeList nlist = node.children();
85 XMLNodeIterator niter;
87 /* Send has regular IO automation (gain, pan) */
89 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
90 if ((*niter)->name() == Redirect::state_node_name) {
91 Redirect::set_state (**niter);
93 } else if ((*niter)->name() == X_("Automation")) {
94 IO::set_automation_state (*(*niter));
98 if (niter == nlist.end()) {
99 error << _("XML node describing a send is missing a Redirect node") << endmsg;
107 Send::run (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame, nframes_t nframes, nframes_t offset)
111 // we have to copy the input, because IO::deliver_output may alter the buffers
112 // in-place, which a send must never do.
114 BufferSet& sendbufs = _session.get_send_buffers(bufs.count());
116 sendbufs.read_from(bufs, nframes);
117 assert(sendbufs.count() == bufs.count());
119 IO::deliver_output (sendbufs, start_frame, end_frame, 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;