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 _panshell->run (bufs, mixbufs, start_frame, end_frame, nframes);
121 mixbufs.read_from (bufs, nframes);
126 gain_t tgain = target_gain ();
128 if (tgain != _current_gain) {
130 /* target gain has changed */
132 Amp::apply_gain (mixbufs, nframes, _current_gain, tgain);
133 _current_gain = tgain;
135 } else if (tgain == 0.0) {
137 /* we were quiet last time, and we're still supposed to be quiet.
141 Amp::apply_simple_gain (mixbufs, nframes, 0.0);
144 } else if (tgain != 1.0) {
146 /* target gain has not changed, but is not zero or unity */
147 Amp::apply_simple_gain (mixbufs, nframes, tgain);
150 // Can't automate gain for sends or returns yet because we need different buffers
151 // so that we don't overwrite the main automation data for the route amp
152 // _amp->setup_gain_automation (start_frame, end_frame, nframes);
154 _amp->run (mixbufs, start_frame, end_frame, nframes, true);
156 /* consider metering */
159 if (_amp->gain_control()->get_value() == 0) {
162 _meter->run (mixbufs, start_frame, end_frame, nframes, true);
167 if (_session.transport_rolling()) {
168 for (BufferSet::audio_iterator b = mixbufs.audio_begin(); b != mixbufs.audio_end(); ++b) {
169 Sample* p = b->data ();
170 for (pframes_t n = 0; n < nframes; ++n) {
172 cerr << "\tnon-zero data SENT to " << b->data() << endl;
180 /* target will pick up our output when it is ready */
183 _active = _pending_active;
187 InternalSend::set_block_size (pframes_t nframes)
189 mixbufs.ensure_buffers (_configured_input, nframes);
194 InternalSend::feeds (boost::shared_ptr<Route> other) const
196 return _send_to == other;
200 InternalSend::state (bool full)
202 XMLNode& node (Send::state (full));
204 /* this replaces any existing "type" property */
206 node.add_property ("type", "intsend");
209 node.add_property ("target", _send_to->id().to_s());
216 InternalSend::get_state()
222 InternalSend::set_state (const XMLNode& node, int version)
224 const XMLProperty* prop;
226 Send::set_state (node, version);
230 if ((prop = node.property ("target")) != 0) {
232 _send_to_id = prop->value();
234 /* if we're loading a session, the target route may not have been
235 create yet. make sure we defer till we are sure that it should
239 if (!IO::connecting_legal) {
240 IO::ConnectingLegal.connect_same_thread (connect_c, boost::bind (&InternalSend::connect_when_legal, this));
242 connect_when_legal ();
250 InternalSend::connect_when_legal ()
252 connect_c.disconnect ();
254 if (_send_to_id == "0") {
255 /* it vanished before we could connect */
259 boost::shared_ptr<Route> sendto;
261 if ((sendto = _session.route_by_id (_send_to_id)) == 0) {
262 error << X_("cannot find route to connect to") << endmsg;
266 return use_target (sendto);
270 InternalSend::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
277 InternalSend::configure_io (ChanCount in, ChanCount out)
279 bool ret = Send::configure_io (in, out);
280 set_block_size (_session.engine().frames_per_cycle());
285 InternalSend::set_name (const string& str)
287 /* rules for external sends don't apply to us */
288 return IOProcessor::set_name (str);
292 InternalSend::display_name () const
295 return string_compose (X_("aux-%1"), _name);
302 InternalSend::visible () const
312 InternalSend::send_to_property_changed (const PropertyChange& what_changed)
314 if (what_changed.contains (Properties::name)) {
315 set_name (_send_to->name ());
320 InternalSend::set_can_pan (bool yn)
322 boost::shared_ptr<Panner> panner;
325 panner = _panshell->panner ();
329 panner->set_bypassed (!yn);
334 InternalSend::cycle_start (pframes_t nframes)
336 Delivery::cycle_start (nframes);
338 for (BufferSet::audio_iterator b = mixbufs.audio_begin(); b != mixbufs.audio_end(); ++b) {