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/*
Copyright (C) 2000,2007 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <string>
#include <sigc++/bind.h>
#include "pbd/failed_constructor.h"
#include "pbd/xml++.h"
#include "ardour/delivery.h"
#include "ardour/port_insert.h"
#include "ardour/plugin.h"
#include "ardour/port.h"
#include "ardour/route.h"
#include "ardour/buffer_set.h"
#include "ardour/audioengine.h"
#include "ardour/session.h"
#include "ardour/types.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
PortInsert::PortInsert (Session& s, boost::shared_ptr<MuteMaster> mm)
: IOProcessor (s, true, true, string_compose (_("insert %1"), (bitslot = s.next_insert_id()) + 1), "")
, _out (new Delivery (s, _output, mm, _name, Delivery::Insert))
{
ProcessorCreated (this); /* EMIT SIGNAL */
}
PortInsert::PortInsert (Session& s, boost::shared_ptr<MuteMaster> mm, const XMLNode& node)
: IOProcessor (s, true, true, "unnamed port insert")
, _out (new Delivery (s, _output, mm, _name, Delivery::Insert))
{
if (set_state (node, Stateful::loading_state_version)) {
throw failed_constructor();
}
ProcessorCreated (this); /* EMIT SIGNAL */
}
PortInsert::~PortInsert ()
{
GoingAway ();
}
void
PortInsert::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes, bool)
{
if (_output->n_ports().n_total() == 0) {
return;
}
if (!_active && !_pending_active) {
/* deliver silence */
silence (nframes);
goto out;
}
_out->run (bufs, start_frame, end_frame, nframes, true);
_input->collect_input (bufs, nframes, ChanCount::ZERO);
out:
_active = _pending_active;
}
XMLNode&
PortInsert::get_state(void)
{
return state (true);
}
XMLNode&
PortInsert::state (bool full)
{
XMLNode& node = Processor::state(full);
char buf[32];
node.add_property ("type", "port");
snprintf (buf, sizeof (buf), "%" PRIu32, bitslot);
node.add_property ("bitslot", buf);
return node;
}
int
PortInsert::set_state (const XMLNode& node, int version)
{
XMLNodeList nlist = node.children();
XMLNodeIterator niter;
XMLPropertyList plist;
const XMLProperty *prop;
if ((prop = node.property ("type")) == 0) {
error << _("XML node describing port insert is missing the `type' field") << endmsg;
return -1;
}
if (prop->value() != "port") {
error << _("non-port insert XML used for port plugin insert") << endmsg;
return -1;
}
if ((prop = node.property ("bitslot")) == 0) {
bitslot = _session.next_insert_id();
} else {
sscanf (prop->value().c_str(), "%" PRIu32, &bitslot);
_session.mark_insert_id (bitslot);
}
const XMLNode* insert_node = &node;
// legacy sessions: search for child IOProcessor node
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
if ((*niter)->name() == "IOProcessor") {
insert_node = *niter;
break;
}
}
Processor::set_state (*insert_node, version);
return 0;
}
ARDOUR::nframes_t
PortInsert::signal_latency() const
{
/* because we deliver and collect within the same cycle,
all I/O is necessarily delayed by at least frames_per_cycle().
if the return port for insert has its own latency, we
need to take that into account too.
*/
return _session.engine().frames_per_cycle() + _input->signal_latency();
}
bool
PortInsert::configure_io (ChanCount in, ChanCount out)
{
/* for an insert, processor input corresponds to IO output, and vice versa */
if (_input->ensure_io (in, false, this) != 0) {
return false;
}
if (_output->ensure_io (out, false, this) != 0) {
return false;
}
return Processor::configure_io (in, out);
}
bool
PortInsert::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
{
out = in;
return true;
}
bool
PortInsert::set_name (const std::string& name)
{
bool ret = Processor::set_name (name);
ret = (ret && _input->set_name (name) && _output->set_name (name));
return ret;
}
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