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_return.h"
26 #include "ardour/internal_send.h"
27 #include "ardour/meter.h"
28 #include "ardour/panner.h"
29 #include "ardour/panner_shell.h"
30 #include "ardour/route.h"
31 #include "ardour/session.h"
36 using namespace ARDOUR;
39 InternalSend::InternalSend (Session& s, boost::shared_ptr<Pannable> p, boost::shared_ptr<MuteMaster> mm, boost::shared_ptr<Route> sendto, Delivery::Role role)
40 : Send (s, p, mm, role)
43 if (use_target (sendto)) {
44 throw failed_constructor();
51 InternalSend::~InternalSend ()
54 _send_to->remove_send_from_internal_return (this);
59 InternalSend::init_gain ()
61 if (_role == Listen) {
62 /* send to monitor bus is always at unity */
63 _amp->set_gain (1.0, this);
65 /* aux sends start at -inf dB */
66 _amp->set_gain (0, this);
71 InternalSend::use_target (boost::shared_ptr<Route> sendto)
74 _send_to->remove_send_from_internal_return (this);
79 _send_to->add_send_to_internal_return (this);
81 mixbufs.ensure_buffers (_send_to->internal_return()->input_streams(), _session.get_block_size());
82 mixbufs.set_count (_send_to->internal_return()->input_streams());
84 set_name (sendto->name());
85 _send_to_id = _send_to->id();
87 target_connections.drop_connections ();
89 _send_to->DropReferences.connect_same_thread (target_connections, boost::bind (&InternalSend::send_to_going_away, this));
90 _send_to->PropertyChanged.connect_same_thread (target_connections, boost::bind (&InternalSend::send_to_property_changed, this, _1));;
96 InternalSend::send_to_going_away ()
98 target_connections.drop_connections ();
104 InternalSend::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool)
106 if ((!_active && !_pending_active) || !_send_to) {
111 // we have to copy the input, because we may alter the buffers with the amp
112 // in-place, which a send must never do.
114 assert(mixbufs.available() >= bufs.count());
116 if (_panshell && !_panshell->bypassed()) {
117 _panshell->run (bufs, mixbufs, start_frame, end_frame, nframes);
119 mixbufs.read_from (bufs, nframes);
124 gain_t tgain = target_gain ();
126 if (tgain != _current_gain) {
128 /* target gain has changed */
130 Amp::apply_gain (mixbufs, nframes, _current_gain, tgain);
131 _current_gain = tgain;
133 } else if (tgain == 0.0) {
135 /* we were quiet last time, and we're still supposed to be quiet.
139 Amp::apply_simple_gain (mixbufs, nframes, 0.0);
142 } else if (tgain != 1.0) {
144 /* target gain has not changed, but is not zero or unity */
145 Amp::apply_simple_gain (mixbufs, nframes, tgain);
148 // Can't automate gain for sends or returns yet because we need different buffers
149 // so that we don't overwrite the main automation data for the route amp
150 // _amp->setup_gain_automation (start_frame, end_frame, nframes);
152 _amp->run (mixbufs, start_frame, end_frame, nframes, true);
154 /* consider metering */
157 if (_amp->gain_control()->get_value() == 0) {
160 _meter->run (mixbufs, start_frame, end_frame, nframes, true);
164 /* target will pick up our output when it is ready */
167 _active = _pending_active;
171 InternalSend::set_block_size (pframes_t nframes)
174 mixbufs.ensure_buffers (_send_to->internal_return()->input_streams(), nframes);
181 InternalSend::feeds (boost::shared_ptr<Route> other) const
183 return _send_to == other;
187 InternalSend::state (bool full)
189 XMLNode& node (Send::state (full));
191 /* this replaces any existing "type" property */
193 node.add_property ("type", "intsend");
196 node.add_property ("target", _send_to->id().to_s());
203 InternalSend::get_state()
209 InternalSend::set_state (const XMLNode& node, int version)
211 const XMLProperty* prop;
215 Send::set_state (node, version);
217 if ((prop = node.property ("target")) != 0) {
219 _send_to_id = prop->value();
221 /* if we're loading a session, the target route may not have been
222 create yet. make sure we defer till we are sure that it should
226 if (!IO::connecting_legal) {
227 IO::ConnectingLegal.connect_same_thread (connect_c, boost::bind (&InternalSend::connect_when_legal, this));
229 connect_when_legal ();
237 InternalSend::connect_when_legal ()
239 connect_c.disconnect ();
241 if (_send_to_id == "0") {
242 /* it vanished before we could connect */
246 boost::shared_ptr<Route> sendto;
248 if ((sendto = _session.route_by_id (_send_to_id)) == 0) {
249 error << X_("cannot find route to connect to") << endmsg;
253 return use_target (sendto);
257 InternalSend::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
264 InternalSend::configure_io (ChanCount in, ChanCount out)
266 bool ret = Send::configure_io (in, out);
267 set_block_size (_session.engine().frames_per_cycle());
272 InternalSend::set_name (const string& str)
274 /* rules for external sends don't apply to us */
275 return IOProcessor::set_name (str);
279 InternalSend::display_name () const
282 return string_compose (X_("aux-%1"), _name);
289 InternalSend::visible () const
299 InternalSend::send_to_property_changed (const PropertyChange& what_changed)
301 if (what_changed.contains (Properties::name)) {
302 set_name (_send_to->name ());
307 InternalSend::set_can_pan (bool yn)
310 _panshell->set_bypassed (!yn);
315 InternalSend::cycle_start (pframes_t nframes)
317 Delivery::cycle_start (nframes);
319 for (BufferSet::audio_iterator b = mixbufs.audio_begin(); b != mixbufs.audio_end(); ++b) {