rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 379 insertions, 0 deletions

diff --git a/libs/ardour/port.cc b/libs/ardour/port.cc
new file mode 100644
index 0000000000..7aadb9183f
--- /dev/null
+++ b/libs/ardour/port.cc
@@ -0,0 +1,379 @@
+/*
+    Copyright (C) 2002-2006 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 <ardour/port.h>
+
+using namespace ARDOUR;
+using namespace std;
+
+AudioEngine* Port::engine = 0;
+
+Port::Port (const std::string& name, Flags flgs)
+	: _flags (flgs)
+	, _name (name)
+	, _metering (0)
+	, _last_monitor (false)
+{
+}
+
+Port::~Port ()
+{
+	disconnect_all ();
+}
+
+void
+Port::reset ()
+{
+	_last_monitor = false;
+}
+
+void
+Port::set_engine (AudioEngine* e) 
+{
+	engine = e;
+}
+
+int
+Port::connect (Port& other)
+{
+	/* caller must hold process lock */
+
+	pair<set<Port*>::iterator,bool> result;
+
+	result = _connections.insert (&other);
+
+	if (result.second) {
+		return 0;
+	} else {
+		return 1;
+	}
+}
+
+int
+Port::disconnect (Port& other)
+{
+	/* caller must hold process lock */
+	
+	for (set<Port*>::iterator i = _connections.begin(); i != _connections.end(); ++i) {
+		if ((*i) == &other) {
+			_connections.erase (i);
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+
+int
+Port::disconnect_all ()
+{
+	/* caller must hold process lock */
+
+	_connections.clear ();
+	return 0;
+}
+
+void
+Port::set_latency (nframes_t val)
+{
+	_latency = val;
+}
+
+bool
+Port::connected() const
+{
+	/* caller must hold process lock */
+	return !_connections.empty();
+}
+
+bool
+Port::connected_to (const string& portname) const
+{
+	/* caller must hold process lock */
+
+	for (set<Port*>::const_iterator p = _connections.begin(); p != _connections.end(); ++p) {
+		if ((*p)->name() == portname) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
+int
+Port::get_connections (vector<string>& names) const
+{
+	/* caller must hold process lock */
+	int i = 0;
+	set<Port*>::const_iterator p;
+
+	for (i = 0, p = _connections.begin(); p != _connections.end(); ++p, ++i) {
+		names.push_back ((*p)->name());
+	}
+
+	return i;
+}
+
+
+//-------------------------------------
+
+int
+PortFacade::set_name (const std::string& str)
+{
+	int ret;
+
+	if (_ext_port) {
+		if ((ret = _ext_port->set_name (str)) == 0) {
+			_name = _ext_port->name();
+		}
+	} else {
+		_name = str;
+		ret = 0;
+	}
+
+	return ret;
+}
+
+string
+PortFacade::short_name ()  const
+{
+	if (_ext_port) {
+		return _ext_port->short_name(); 
+	} else {
+		return _name;
+	}
+}
+
+
+int
+PortFacade::reestablish ()
+{
+	if (_ext_port) {
+		return _ext_port->reestablish ();
+	} else {
+		return 0;
+	}
+}
+
+
+int
+PortFacade::reconnect()
+{
+	if (_ext_port) {
+		return _ext_port->reconnect ();
+	} else {
+		return 0;
+	}
+}
+
+void
+PortFacade::set_latency (nframes_t val)
+{
+	if (_ext_port) {
+		_ext_port->set_latency (val);
+	} else {
+		_latency = val;
+	}
+}
+
+nframes_t
+PortFacade::latency() const
+{
+	if (_ext_port) {
+		return _ext_port->latency();
+	} else {
+		return _latency;
+	}
+}
+
+nframes_t
+PortFacade::total_latency() const
+{
+	if (_ext_port) {
+		return _ext_port->total_latency();
+	} else {
+		return _latency;
+	}
+}
+
+bool
+PortFacade::monitoring_input() const
+{
+	if (_ext_port) {
+		return _ext_port->monitoring_input ();
+	} else {
+		return false;
+	}
+}
+
+void
+PortFacade::ensure_monitor_input (bool yn)
+{
+	if (_ext_port) {
+		_ext_port->ensure_monitor_input (yn);
+	}
+}
+
+void
+PortFacade::request_monitor_input (bool yn)
+{
+	if (_ext_port) {
+		_ext_port->request_monitor_input (yn);
+	} 
+}
+
+int
+PortFacade::connect (Port& other)
+{
+	int ret;
+	
+	if (_ext_port) {
+		ret = _ext_port->connect (other);
+	} else {
+		ret = 0;
+	}
+
+	if (ret == 0) {
+		ret = Port::connect (other);
+	}
+
+	return ret;
+}
+
+int
+PortFacade::connect (const std::string& other)
+{
+	PortConnectableByName* pcn;
+
+	if (!_ext_port) {
+		return -1;
+	}
+		
+	pcn = dynamic_cast<PortConnectableByName*>(_ext_port);
+
+	if (pcn) {
+		return pcn->connect (other);
+	} else {
+		return -1;
+	}
+}
+
+
+int
+PortFacade::disconnect (Port& other)
+{
+	int reta;
+	int retb;
+	
+	if (_ext_port) {
+		reta = _ext_port->disconnect (other);
+	} else {
+		reta = 0;
+	}
+
+	retb = Port::disconnect (other);
+
+	return reta || retb;
+}
+
+int 
+PortFacade::disconnect_all ()
+{
+	int reta = 0;
+	int retb = 0;
+
+	if (_ext_port) {
+		reta = _ext_port->disconnect_all ();
+	} 
+
+	retb = Port::disconnect_all ();
+
+	return reta || retb;
+}
+		
+int
+PortFacade::disconnect (const std::string& other)
+{
+	PortConnectableByName* pcn;
+
+	if (!_ext_port) {
+		return -1;
+	}
+		
+	pcn = dynamic_cast<PortConnectableByName*>(_ext_port);
+
+	if (pcn) {
+		return pcn->disconnect (other);
+	} else {
+		return -1;
+	}
+}
+
+bool
+PortFacade::connected () const 
+{
+	if (Port::connected()) {
+		return true;
+	}
+
+	if (_ext_port) {
+		return _ext_port->connected();
+	}
+
+	return false;
+}
+bool
+PortFacade::connected_to (const std::string& portname) const 
+{
+	if (Port::connected_to (portname)) {
+		return true;
+	}
+
+	if (_ext_port) {
+		return _ext_port->connected_to (portname);
+	}
+
+	return false;
+
+}
+
+int
+PortFacade::get_connections (vector<string>& names) const 
+{
+	int i = 0;
+
+	if (_ext_port) {
+		i = _ext_port->get_connections (names);
+	}
+
+	i += Port::get_connections (names);
+
+	return i;
+}
+
+void
+PortFacade::reset ()
+{
+	Port::reset ();
+
+	if (_ext_port) {
+		_ext_port->reset ();
+	}
+}