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>
31 #include <ardour/io.h>
35 using namespace ARDOUR;
38 Send::Send (Session& s, Placement p)
39 : IOProcessor (s, string_compose (_("send %1"), (bitslot = s.next_send_id()) + 1), p)
42 ProcessorCreated (this); /* EMIT SIGNAL */
45 Send::Send (Session& s, const XMLNode& node)
46 : IOProcessor (s, "send", PreFader)
50 if (set_state (node)) {
51 throw failed_constructor();
54 ProcessorCreated (this); /* EMIT SIGNAL */
57 Send::Send (const Send& other)
58 : IOProcessor (other._session, string_compose (_("send %1"), (bitslot = other._session.next_send_id()) + 1), other.placement())
62 expected_inputs.set (DataType::AUDIO, 0);
64 #ifdef THIS_NEEDS_FIXING_FOR_V3
66 /* set up the same outputs, and connect them to the same places */
68 _io->no_panner_reset = true;
70 for (uint32_t i = 0; i < other.n_outputs (); ++i) {
71 add_output_port ("", 0);
72 Port* p = other.output (i);
74 /* this is what the other send's output is connected to */
75 const char **connections = p->get_connections ();
77 for (uint32_t c = 0; connections[c]; ++c) {
78 connect_output (output (i), connections [c], 0);
86 _io->no_panner_reset = false;
90 XMLNode& other_state (const_cast<Send*>(&other)->_panner->get_state());
91 _panner->set_state (other_state);
96 ProcessorCreated (this); /* EMIT SIGNAL */
105 Send::get_state(void)
111 Send::state(bool full)
113 XMLNode& node = IOProcessor::state(full);
115 node.add_property ("type", "send");
116 snprintf (buf, sizeof (buf), "%" PRIu32, bitslot);
117 node.add_property ("bitslot", buf);
123 Send::set_state(const XMLNode& node)
125 XMLNodeList nlist = node.children();
126 XMLNodeIterator niter;
127 const XMLProperty* prop;
129 if ((prop = node.property ("bitslot")) == 0) {
130 bitslot = _session.next_send_id();
132 sscanf (prop->value().c_str(), "%" PRIu32, &bitslot);
133 _session.mark_send_id (bitslot);
136 const XMLNode* insert_node = &node;
138 /* Send has regular IO automation (gain, pan) */
140 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
141 if ((*niter)->name() == "IOProcessor") {
142 insert_node = *niter;
143 } else if ((*niter)->name() == X_("Automation")) {
144 // _io->set_automation_state (*(*niter), Evoral::Parameter(GainAutomation));
148 IOProcessor::set_state (*insert_node);
154 Send::run_in_place (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame, nframes_t nframes, nframes_t offset)
158 // we have to copy the input, because IO::deliver_output may alter the buffers
159 // in-place, which a send must never do.
161 BufferSet& sendbufs = _session.get_mix_buffers(bufs.count());
163 sendbufs.read_from(bufs, nframes);
164 assert(sendbufs.count() == bufs.count());
166 _io->deliver_output (sendbufs, start_frame, end_frame, nframes, offset);
169 if (_io->effective_gain() == 0) {
170 _io->peak_meter().reset();
172 _io->peak_meter().run_in_place(_io->output_buffers(), start_frame, end_frame, nframes, offset);
177 _io->silence (nframes, offset);
180 _io->peak_meter().reset();
186 Send::set_metering (bool yn)
191 /* XXX possible thread hazard here */
192 _io->peak_meter().reset();
197 Send::can_support_io_configuration (const ChanCount& in, ChanCount& out_is_ignored) const
199 if (_io->input_maximum() == ChanCount::INFINITE && _io->output_maximum() == ChanCount::INFINITE) {
201 /* not configured yet */
203 return 1; /* we can support anything the first time we're asked */
207 /* the "input" config for a port insert corresponds to how
208 many output ports it will have.
211 if (_io->output_maximum() == in) {
220 Send::configure_io (ChanCount in, ChanCount out)
222 /* we're transparent no matter what. fight the power. */
228 _io->set_output_maximum (in);
229 _io->set_output_minimum (in);
230 _io->set_input_maximum (ChanCount::ZERO);
231 _io->set_input_minimum (ChanCount::ZERO);
233 if (_io->ensure_io (ChanCount::ZERO, in, false, this) != 0) {
237 Processor::configure_io(in, out);
244 Send::output_streams() const
246 // this method reflects the idea that from the perspective of the Route's ProcessorList,
247 // a send is just a passthrough. that doesn't match what the Send actually does with its
248 // data, but since what it does is invisible to the Route, it appears to be a passthrough.
250 return _configured_input;
254 Send::input_streams() const
256 return _configured_input;
261 Send::expect_inputs (const ChanCount& expected)
263 if (expected != expected_inputs) {
264 expected_inputs = expected;
265 _io->reset_panner ();