2 Copyright (C) 2009 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.
20 #include "pbd/error.h"
21 #include "pbd/failed_constructor.h"
23 #include "ardour/amp.h"
24 #include "ardour/audio_buffer.h"
25 #include "ardour/internal_send.h"
26 #include "ardour/meter.h"
27 #include "ardour/panner.h"
28 #include "ardour/panner_shell.h"
29 #include "ardour/route.h"
30 #include "ardour/session.h"
35 using namespace ARDOUR;
38 InternalSend::InternalSend (Session& s, boost::shared_ptr<Pannable> p, boost::shared_ptr<MuteMaster> mm, boost::shared_ptr<Route> sendto, Delivery::Role role)
39 : Send (s, p, mm, role)
42 if (use_target (sendto)) {
43 throw failed_constructor();
50 InternalSend::~InternalSend ()
53 _send_to->remove_send_from_internal_return (this);
58 InternalSend::init_gain ()
60 if (_role == Listen) {
61 /* send to monitor bus is always at unity */
62 _amp->set_gain (1.0, this);
64 /* aux sends start at -inf dB */
65 _amp->set_gain (0, this);
70 InternalSend::use_target (boost::shared_ptr<Route> sendto)
73 _send_to->remove_send_from_internal_return (this);
78 _send_to->add_send_to_internal_return (this);
80 set_name (sendto->name());
81 _send_to_id = _send_to->id();
83 target_connections.drop_connections ();
85 _send_to->DropReferences.connect_same_thread (target_connections, boost::bind (&InternalSend::send_to_going_away, this));
86 _send_to->PropertyChanged.connect_same_thread (target_connections, boost::bind (&InternalSend::send_to_property_changed, this, _1));;
92 InternalSend::send_to_going_away ()
94 target_connections.drop_connections ();
100 InternalSend::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool)
102 if ((!_active && !_pending_active) || !_send_to) {
107 // we have to copy the input, because we may alter the buffers with the amp
108 // in-place, which a send must never do.
110 assert(mixbufs.available() >= bufs.count());
112 boost::shared_ptr<Panner> panner;
115 panner = _panshell->panner();
118 if (panner && !panner->bypassed()) {
119 mixbufs.set_count (_send_to->n_outputs ());
120 _panshell->run (bufs, mixbufs, start_frame, end_frame, nframes);
122 mixbufs.read_from (bufs, nframes);
127 gain_t tgain = target_gain ();
129 if (tgain != _current_gain) {
131 /* target gain has changed */
133 Amp::apply_gain (mixbufs, nframes, _current_gain, tgain);
134 _current_gain = tgain;
136 } else if (tgain == 0.0) {
138 /* we were quiet last time, and we're still supposed to be quiet.
142 Amp::apply_simple_gain (mixbufs, nframes, 0.0);
145 } else if (tgain != 1.0) {
147 /* target gain has not changed, but is not zero or unity */
148 Amp::apply_simple_gain (mixbufs, nframes, tgain);
151 // Can't automate gain for sends or returns yet because we need different buffers
152 // so that we don't overwrite the main automation data for the route amp
153 // _amp->setup_gain_automation (start_frame, end_frame, nframes);
155 _amp->run (mixbufs, start_frame, end_frame, nframes, true);
157 /* consider metering */
160 if (_amp->gain_control()->get_value() == 0) {
163 _meter->run (mixbufs, start_frame, end_frame, nframes, true);
168 if (_session.transport_rolling()) {
169 for (BufferSet::audio_iterator b = mixbufs.audio_begin(); b != mixbufs.audio_end(); ++b) {
170 Sample* p = b->data ();
171 for (pframes_t n = 0; n < nframes; ++n) {
173 cerr << "\tnon-zero data SENT to " << b->data() << endl;
181 /* target will pick up our output when it is ready */
184 _active = _pending_active;
188 InternalSend::set_block_size (pframes_t nframes)
190 mixbufs.ensure_buffers (_configured_input, nframes);
195 InternalSend::feeds (boost::shared_ptr<Route> other) const
197 return _send_to == other;
201 InternalSend::state (bool full)
203 XMLNode& node (Send::state (full));
205 /* this replaces any existing "type" property */
207 node.add_property ("type", "intsend");
210 node.add_property ("target", _send_to->id().to_s());
217 InternalSend::get_state()
223 InternalSend::set_state (const XMLNode& node, int version)
225 const XMLProperty* prop;
229 Send::set_state (node, version);
231 if ((prop = node.property ("target")) != 0) {
233 _send_to_id = prop->value();
235 /* if we're loading a session, the target route may not have been
236 create yet. make sure we defer till we are sure that it should
240 if (!IO::connecting_legal) {
241 IO::ConnectingLegal.connect_same_thread (connect_c, boost::bind (&InternalSend::connect_when_legal, this));
243 connect_when_legal ();
251 InternalSend::connect_when_legal ()
253 connect_c.disconnect ();
255 if (_send_to_id == "0") {
256 /* it vanished before we could connect */
260 boost::shared_ptr<Route> sendto;
262 if ((sendto = _session.route_by_id (_send_to_id)) == 0) {
263 error << X_("cannot find route to connect to") << endmsg;
267 return use_target (sendto);
271 InternalSend::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
278 InternalSend::configure_io (ChanCount in, ChanCount out)
280 bool ret = Send::configure_io (in, out);
281 set_block_size (_session.engine().frames_per_cycle());
286 InternalSend::set_name (const string& str)
288 /* rules for external sends don't apply to us */
289 return IOProcessor::set_name (str);
293 InternalSend::display_name () const
296 return string_compose (X_("aux-%1"), _name);
303 InternalSend::visible () const
313 InternalSend::send_to_property_changed (const PropertyChange& what_changed)
315 if (what_changed.contains (Properties::name)) {
316 set_name (_send_to->name ());
321 InternalSend::set_can_pan (bool yn)
323 boost::shared_ptr<Panner> panner;
326 panner = _panshell->panner ();
330 panner->set_bypassed (!yn);
335 InternalSend::cycle_start (pframes_t nframes)
337 Delivery::cycle_start (nframes);
339 for (BufferSet::audio_iterator b = mixbufs.audio_begin(); b != mixbufs.audio_end(); ++b) {