2 Copyright (C) 2000 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/xml++.h>
24 #include <ardour/send.h>
25 #include <ardour/session.h>
26 #include <ardour/port.h>
27 #include <ardour/audio_port.h>
28 #include <ardour/buffer_set.h>
29 #include <ardour/meter.h>
30 #include <ardour/panner.h>
34 using namespace ARDOUR;
37 Send::Send (Session& s, Placement p)
38 : IOProcessor (s, string_compose (_("send %1"), (bitslot = s.next_send_id()) + 1), p)
41 ProcessorCreated (this); /* EMIT SIGNAL */
44 Send::Send (Session& s, const XMLNode& node)
45 : IOProcessor (s, "send", PreFader)
49 if (set_state (node)) {
50 throw failed_constructor();
53 ProcessorCreated (this); /* EMIT SIGNAL */
56 Send::Send (const Send& other)
57 : IOProcessor (other._session, string_compose (_("send %1"), (bitslot = other._session.next_send_id()) + 1), other.placement())
61 expected_inputs.set (DataType::AUDIO, 0);
63 #ifdef THIS_NEEDS_FIXING_FOR_V3
65 /* set up the same outputs, and connect them to the same places */
67 _io->no_panner_reset = true;
69 for (uint32_t i = 0; i < other.n_outputs (); ++i) {
70 add_output_port ("", 0);
71 Port* p = other.output (i);
73 /* this is what the other send's output is connected to */
74 const char **connections = p->get_connections ();
76 for (uint32_t c = 0; connections[c]; ++c) {
77 connect_output (output (i), connections [c], 0);
85 _io->no_panner_reset = false;
89 XMLNode& other_state (const_cast<Send*>(&other)->_panner->get_state());
90 _panner->set_state (other_state);
95 ProcessorCreated (this); /* EMIT SIGNAL */
104 Send::get_state(void)
110 Send::state(bool full)
112 XMLNode& node = IOProcessor::state(full);
114 node.add_property ("type", "send");
115 snprintf (buf, sizeof (buf), "%" PRIu32, bitslot);
116 node.add_property ("bitslot", buf);
122 Send::set_state(const XMLNode& node)
124 XMLNodeList nlist = node.children();
125 XMLNodeIterator niter;
126 const XMLProperty* prop;
128 if ((prop = node.property ("bitslot")) == 0) {
129 bitslot = _session.next_send_id();
131 sscanf (prop->value().c_str(), "%" PRIu32, &bitslot);
132 _session.mark_send_id (bitslot);
135 const XMLNode* insert_node = &node;
137 /* Send has regular IO automation (gain, pan) */
139 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
140 if ((*niter)->name() == "IOProcessor") {
141 insert_node = *niter;
142 } else if ((*niter)->name() == X_("Automation")) {
143 _io->set_automation_state (*(*niter), Evoral::Parameter(GainAutomation));
147 IOProcessor::set_state (*insert_node);
153 Send::run_in_place (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame, nframes_t nframes, nframes_t offset)
157 // we have to copy the input, because IO::deliver_output may alter the buffers
158 // in-place, which a send must never do.
160 BufferSet& sendbufs = _session.get_mix_buffers(bufs.count());
162 sendbufs.read_from(bufs, nframes);
163 assert(sendbufs.count() == bufs.count());
165 _io->deliver_output (sendbufs, start_frame, end_frame, nframes, offset);
168 if (_io->_gain == 0) {
169 _io->_meter->reset();
171 _io->_meter->run_in_place(_io->output_buffers(), start_frame, end_frame, nframes, offset);
176 _io->silence (nframes, offset);
179 _io->_meter->reset();
185 Send::set_metering (bool yn)
190 /* XXX possible thread hazard here */
191 _io->peak_meter().reset();
196 Send::can_support_io_configuration (const ChanCount& in, ChanCount& out_is_ignored) const
198 if (_io->input_maximum() == ChanCount::INFINITE && _io->output_maximum() == ChanCount::INFINITE) {
200 /* not configured yet */
202 return 1; /* we can support anything the first time we're asked */
206 /* the "input" config for a port insert corresponds to how
207 many output ports it will have.
210 if (_io->output_maximum() == in) {
219 Send::configure_io (ChanCount in, ChanCount out)
221 /* we're transparent no matter what. fight the power. */
227 _io->set_output_maximum (in);
228 _io->set_output_minimum (in);
229 _io->set_input_maximum (ChanCount::ZERO);
230 _io->set_input_minimum (ChanCount::ZERO);
232 if (_io->ensure_io (ChanCount::ZERO, in, false, this) != 0) {
236 Processor::configure_io(in, out);
243 Send::output_streams() const
245 // this method reflects the idea that from the perspective of the Route's ProcessorList,
246 // a send is just a passthrough. that doesn't match what the Send actually does with its
247 // data, but since what it does is invisible to the Route, it appears to be a passthrough.
249 return _configured_input;
253 Send::input_streams() const
255 return _configured_input;
260 Send::expect_inputs (const ChanCount& expected)
262 if (expected != expected_inputs) {
263 expected_inputs = expected;
264 _io->reset_panner ();