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.
22 #include "pbd/error.h"
23 #include "pbd/failed_constructor.h"
25 #include "ardour/amp.h"
26 #include "ardour/internal_send.h"
27 #include "ardour/meter.h"
28 #include "ardour/route.h"
29 #include "ardour/session.h"
34 using namespace ARDOUR;
36 InternalSend::InternalSend (Session& s, boost::shared_ptr<MuteMaster> mm, boost::shared_ptr<Route> sendto, Delivery::Role role)
40 if ((target = _send_to->get_return_buffer ()) == 0) {
41 throw failed_constructor();
44 set_name (sendto->name());
46 _send_to->DropReferences.connect_same_thread (*this, boost::bind (&InternalSend::send_to_going_away, this));
47 _send_to->PropertyChanged.connect_same_thread (*this, boost::bind (&InternalSend::send_to_property_changed, this, _1));;
50 InternalSend::InternalSend (Session& s, boost::shared_ptr<MuteMaster> mm, const XMLNode& node)
51 : Send (s, mm, node, Stateful::loading_state_version, Delivery::Aux /* will be reset in set_state() */),
54 /* Send constructor will set its state, so here we just need to set up our own */
55 set_our_state (node, Stateful::loading_state_version);
58 InternalSend::~InternalSend ()
61 _send_to->release_return_buffer ();
64 connect_c.disconnect ();
68 InternalSend::send_to_going_away ()
76 InternalSend::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes, bool)
78 if ((!_active && !_pending_active) || !target || !_send_to) {
83 // we have to copy the input, because we may alter the buffers with the amp
84 // in-place, which a send must never do.
86 assert(mixbufs.available() >= bufs.count());
87 mixbufs.read_from (bufs, nframes);
91 gain_t tgain = target_gain ();
93 if (tgain != _current_gain) {
95 /* target gain has changed */
97 Amp::apply_gain (mixbufs, nframes, _current_gain, tgain);
98 _current_gain = tgain;
100 } else if (tgain == 0.0) {
102 /* we were quiet last time, and we're still supposed to be quiet.
106 Amp::apply_simple_gain (mixbufs, nframes, 0.0);
109 } else if (tgain != 1.0) {
111 /* target gain has not changed, but is not zero or unity */
112 Amp::apply_simple_gain (mixbufs, nframes, tgain);
115 // Can't automate gain for sends or returns yet because we need different buffers
116 // so that we don't overwrite the main automation data for the route amp
117 // _amp->setup_gain_automation (start_frame, end_frame, nframes);
119 _amp->run (mixbufs, start_frame, end_frame, nframes, true);
121 /* XXX NEED TO PAN */
123 /* consider metering */
126 if (_amp->gain_control()->get_value() == 0) {
129 _meter->run (mixbufs, start_frame, end_frame, nframes, true);
133 /* deliver to target */
135 target->merge_from (mixbufs, nframes);
138 _active = _pending_active;
142 InternalSend::set_block_size (nframes_t nframes)
144 mixbufs.ensure_buffers (_configured_input, nframes);
148 InternalSend::feeds (boost::shared_ptr<Route> other) const
150 return _send_to == other;
154 InternalSend::state (bool full)
156 XMLNode& node (Send::state (full));
158 /* this replaces any existing "type" property */
160 node.add_property ("type", "intsend");
163 node.add_property ("target", _send_to->id().to_s());
170 InternalSend::get_state()
176 InternalSend::set_our_state (const XMLNode& node, int /*version*/)
178 const XMLProperty* prop;
180 if ((prop = node.property ("target")) != 0) {
182 _send_to_id = prop->value();
184 /* if we're loading a session, the target route may not have been
185 create yet. make sure we defer till we are sure that it should
189 if (!IO::connecting_legal) {
190 IO::ConnectingLegal.connect_same_thread (connect_c, boost::bind (&InternalSend::connect_when_legal, this));
192 connect_when_legal ();
200 InternalSend::set_state (const XMLNode& node, int version)
202 Send::set_state (node, version);
203 return set_our_state (node, version);
207 InternalSend::connect_when_legal ()
209 connect_c.disconnect ();
211 if (_send_to_id == "0") {
212 /* it vanished before we could connect */
216 if ((_send_to = _session.route_by_id (_send_to_id)) == 0) {
217 error << X_("cannot find route to connect to") << endmsg;
221 if ((target = _send_to->get_return_buffer ()) == 0) {
222 error << X_("target for internal send has no return buffer") << endmsg;
230 InternalSend::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
237 InternalSend::configure_io (ChanCount in, ChanCount out)
239 bool ret = Send::configure_io (in, out);
240 set_block_size (_session.engine().frames_per_cycle());
245 InternalSend::set_name (const std::string& str)
247 /* rules for external sends don't apply to us */
248 return IOProcessor::set_name (str);
252 InternalSend::display_name () const
255 return string_compose (X_("aux-%1"), _name);
262 InternalSend::visible () const
272 InternalSend::send_to_property_changed (const PropertyChange& what_changed)
274 if (what_changed.contains (Properties::name)) {
275 set_name (_send_to->name ());