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/route.h"
28 #include "ardour/session.h"
33 using namespace ARDOUR;
36 InternalSend::InternalSend (Session& s, boost::shared_ptr<Pannable> p, boost::shared_ptr<MuteMaster> mm, boost::shared_ptr<Route> sendto, Delivery::Role role)
37 : Send (s, p, mm, role)
40 if (use_target (sendto)) {
41 throw failed_constructor();
48 InternalSend::~InternalSend ()
51 _send_to->remove_send_from_internal_return (this);
56 InternalSend::init_gain ()
58 if (_role == Listen) {
59 /* send to monitor bus is always at unity */
60 _amp->set_gain (1.0, this);
62 /* aux sends start at -inf dB */
63 _amp->set_gain (0, this);
68 InternalSend::use_target (boost::shared_ptr<Route> sendto)
71 _send_to->remove_send_from_internal_return (this);
76 _send_to->add_send_to_internal_return (this);
78 set_name (sendto->name());
79 _send_to_id = _send_to->id();
81 target_connections.drop_connections ();
83 _send_to->DropReferences.connect_same_thread (target_connections, boost::bind (&InternalSend::send_to_going_away, this));
84 _send_to->PropertyChanged.connect_same_thread (target_connections, boost::bind (&InternalSend::send_to_property_changed, this, _1));;
90 InternalSend::send_to_going_away ()
92 target_connections.drop_connections ();
98 InternalSend::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool)
100 if ((!_active && !_pending_active) || !_send_to) {
105 // we have to copy the input, because we may alter the buffers with the amp
106 // in-place, which a send must never do.
108 assert(mixbufs.available() >= bufs.count());
109 mixbufs.read_from (bufs, nframes);
113 gain_t tgain = target_gain ();
115 if (tgain != _current_gain) {
117 /* target gain has changed */
119 Amp::apply_gain (mixbufs, nframes, _current_gain, tgain);
120 _current_gain = tgain;
122 } else if (tgain == 0.0) {
124 /* we were quiet last time, and we're still supposed to be quiet.
128 Amp::apply_simple_gain (mixbufs, nframes, 0.0);
131 } else if (tgain != 1.0) {
133 /* target gain has not changed, but is not zero or unity */
134 Amp::apply_simple_gain (mixbufs, nframes, tgain);
137 // Can't automate gain for sends or returns yet because we need different buffers
138 // so that we don't overwrite the main automation data for the route amp
139 // _amp->setup_gain_automation (start_frame, end_frame, nframes);
141 _amp->run (mixbufs, start_frame, end_frame, nframes, true);
143 /* XXX NEED TO PAN */
145 /* consider metering */
148 if (_amp->gain_control()->get_value() == 0) {
151 _meter->run (mixbufs, start_frame, end_frame, nframes, true);
156 if (_session.transport_rolling()) {
157 for (BufferSet::audio_iterator b = mixbufs.audio_begin(); b != mixbufs.audio_end(); ++b) {
158 Sample* p = b->data ();
159 for (pframes_t n = 0; n < nframes; ++n) {
161 cerr << "\tnon-zero data SENT to " << b->data() << endl;
169 /* target will pick up our output when it is ready */
172 _active = _pending_active;
176 InternalSend::set_block_size (pframes_t nframes)
178 mixbufs.ensure_buffers (_configured_input, nframes);
183 InternalSend::feeds (boost::shared_ptr<Route> other) const
185 return _send_to == other;
189 InternalSend::state (bool full)
191 XMLNode& node (Send::state (full));
193 /* this replaces any existing "type" property */
195 node.add_property ("type", "intsend");
198 node.add_property ("target", _send_to->id().to_s());
205 InternalSend::get_state()
211 InternalSend::set_state (const XMLNode& node, int version)
213 const XMLProperty* prop;
215 Send::set_state (node, version);
219 if ((prop = node.property ("target")) != 0) {
221 _send_to_id = prop->value();
223 /* if we're loading a session, the target route may not have been
224 create yet. make sure we defer till we are sure that it should
228 if (!IO::connecting_legal) {
229 IO::ConnectingLegal.connect_same_thread (connect_c, boost::bind (&InternalSend::connect_when_legal, this));
231 connect_when_legal ();
239 InternalSend::connect_when_legal ()
241 connect_c.disconnect ();
243 if (_send_to_id == "0") {
244 /* it vanished before we could connect */
248 boost::shared_ptr<Route> sendto;
250 if ((sendto = _session.route_by_id (_send_to_id)) == 0) {
251 error << X_("cannot find route to connect to") << endmsg;
255 return use_target (sendto);
259 InternalSend::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
266 InternalSend::configure_io (ChanCount in, ChanCount out)
268 bool ret = Send::configure_io (in, out);
269 set_block_size (_session.engine().frames_per_cycle());
274 InternalSend::set_name (const string& str)
276 /* rules for external sends don't apply to us */
277 return IOProcessor::set_name (str);
281 InternalSend::display_name () const
284 return string_compose (X_("aux-%1"), _name);
291 InternalSend::visible () const
301 InternalSend::send_to_property_changed (const PropertyChange& what_changed)
303 if (what_changed.contains (Properties::name)) {
304 set_name (_send_to->name ());