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/amp.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"
31 #include "ardour/panner.h"
32 #include "ardour/io.h"
36 using namespace ARDOUR;
39 Send::Send (Session& s, boost::shared_ptr<MuteMaster> mm, Role r)
40 : Delivery (s, mm, string_compose (_("send %1"), (_bitslot = s.next_send_id()) + 1), r)
43 _amp.reset (new Amp (_session, _mute_master));
44 _meter.reset (new PeakMeter (_session));
46 ProcessorCreated (this); /* EMIT SIGNAL */
49 Send::Send (Session& s, boost::shared_ptr<MuteMaster> mm, const XMLNode& node, int version, Role r)
50 : Delivery (s, mm, "send", r)
53 _amp.reset (new Amp (_session, _mute_master));
54 _meter.reset (new PeakMeter (_session));
56 if (set_state (node, version)) {
57 throw failed_constructor();
60 ProcessorCreated (this); /* EMIT SIGNAL */
74 Processor::activate ();
81 _meter->deactivate ();
83 Processor::deactivate ();
87 Send::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes)
89 if (_output->n_ports() == ChanCount::ZERO) {
91 _active = _pending_active;
95 if (!_active && !_pending_active) {
97 _output->silence (nframes);
98 _active = _pending_active;
102 // we have to copy the input, because deliver_output() may alter the buffers
103 // in-place, which a send must never do.
105 BufferSet& sendbufs = _session.get_mix_buffers (bufs.count());
106 sendbufs.read_from (bufs, nframes);
107 assert(sendbufs.count() == bufs.count());
111 // Can't automate gain for sends or returns yet because we need different buffers
112 // so that we don't overwrite the main automation data for the route amp
113 // _amp->setup_gain_automation (start_frame, end_frame, nframes);
114 _amp->run (sendbufs, start_frame, end_frame, nframes);
116 /* deliver to outputs */
118 Delivery::run (sendbufs, start_frame, end_frame, nframes);
120 /* consider metering */
123 if (_amp->gain_control()->get_value() == 0) {
126 _meter->run (*_output_buffers, start_frame, end_frame, nframes);
130 /* _active was set to _pending_active by Delivery::run() */
134 Send::get_state(void)
140 Send::state(bool full)
142 XMLNode& node = Delivery::state(full);
145 node.add_property ("type", "send");
146 snprintf (buf, sizeof (buf), "%" PRIu32, _bitslot);
147 node.add_property ("bitslot", buf);
153 Send::set_state (const XMLNode& node, int version)
155 XMLNodeList nlist = node.children();
156 XMLNodeIterator niter;
157 const XMLProperty* prop;
159 if ((prop = node.property ("bitslot")) == 0) {
160 _bitslot = _session.next_send_id();
162 sscanf (prop->value().c_str(), "%" PRIu32, &_bitslot);
163 _session.mark_send_id (_bitslot);
166 const XMLNode* insert_node = &node;
168 /* XXX need to load automation state & data for amp */
170 Delivery::set_state (*insert_node, version);
176 Send::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
178 /* sends have no impact at all on the channel configuration of the
179 streams passing through the route. so, out == in.
187 Send::configure_io (ChanCount in, ChanCount out)
189 if (!_amp->configure_io (in, out) || !_meter->configure_io (in, out)) {
193 if (!Processor::configure_io (in, out)) {
202 /** Set up the XML description of a send so that its name is unique.
203 * @param state XML send state.
204 * @param session Session.
207 Send::make_unique (XMLNode &state, Session &session)
209 uint32_t const bitslot = session.next_send_id() + 1;
212 snprintf (buf, sizeof (buf), "%" PRIu32, bitslot);
213 state.property("bitslot")->set_value (buf);
215 std::string const name = string_compose (_("send %1"), bitslot);
217 state.property("name")->set_value (name);
219 XMLNode* io = state.child ("IO");
222 io->property("name")->set_value (name);
227 Send::set_name (const std::string& new_name)
229 std::string unique_name;
231 if (_role == Delivery::Send) {
233 snprintf (buf, sizeof (buf), "%u", _bitslot);
234 unique_name = new_name;
237 unique_name = new_name;
240 return Delivery::set_name (unique_name);
244 Send::display_to_user () const
246 /* we ignore Deliver::_display_to_user */
248 if (_role == Listen) {