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/*
* Copyright (C) 2006-2007 John Anderson
* Copyright (C) 2007-2016 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2010-2011 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
* Copyright (C) 2015 Len Ovens <len@ovenwerks.net>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <sstream>
#include <cstring>
#include <cerrno>
#include <sigc++/sigc++.h>
#include <boost/shared_array.hpp>
#include "pbd/failed_constructor.h"
#include "midi++/types.h"
#include "midi++/ipmidi_port.h"
#include "ardour/async_midi_port.h"
#include "ardour/debug.h"
#include "ardour/rc_configuration.h"
#include "ardour/session.h"
#include "ardour/audioengine.h"
#include "controls.h"
#include "mackie_control_protocol.h"
#include "surface.h"
#include "surface_port.h"
#include "pbd/i18n.h"
using namespace std;
using namespace PBD;
using namespace ARDOUR;
using namespace ArdourSurface;
using namespace Mackie;
SurfacePort::SurfacePort (Surface& s)
: _surface (&s)
{
if (_surface->mcp().device_info().uses_ipmidi()) {
_input_port = new MIDI::IPMIDIPort (_surface->mcp().ipmidi_base() +_surface->number());
_output_port = _input_port;
} else {
string in_name;
string out_name;
if (_surface->mcp().device_info().extenders() > 0) {
if (_surface->number() == _surface->mcp().device_info().master_position()) {
in_name = X_("mackie control in");
out_name = X_("mackie control out");
} else {
in_name = string_compose (X_("mackie control in ext %1"), (_surface->number() + 1));
out_name = string_compose (X_("mackie control out ext %1"), _surface->number() + 1);
}
} else {
in_name = X_("mackie control in");
out_name = X_("mackie control out");
}
_async_in = AudioEngine::instance()->register_input_port (DataType::MIDI, in_name, true);
_async_out = AudioEngine::instance()->register_output_port (DataType::MIDI, out_name, true);
if (_async_in == 0 || _async_out == 0) {
throw failed_constructor();
}
_input_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_async_in).get();
_output_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_async_out).get();
}
}
SurfacePort::~SurfacePort()
{
if (dynamic_cast<MIDI::IPMIDIPort*>(_input_port)) {
delete _input_port;
_input_port = 0;
} else {
if (_async_in) {
DEBUG_TRACE (DEBUG::MackieControl, string_compose ("unregistering input port %1\n", _async_in->name()));
Glib::Threads::Mutex::Lock em (AudioEngine::instance()->process_lock());
AudioEngine::instance()->unregister_port (_async_in);
_async_in.reset ((ARDOUR::Port*) 0);
}
if (_async_out) {
_output_port->drain (10000, 250000);
DEBUG_TRACE (DEBUG::MackieControl, string_compose ("unregistering output port %1\n", _async_out->name()));
Glib::Threads::Mutex::Lock em (AudioEngine::instance()->process_lock());
AudioEngine::instance()->unregister_port (_async_out);
_async_out.reset ((ARDOUR::Port*) 0);
}
}
}
XMLNode&
SurfacePort::get_state ()
{
XMLNode* node = new XMLNode (X_("Port"));
if (dynamic_cast<MIDI::IPMIDIPort*>(_input_port)) {
/* no state required for IPMidi ports */
return *node;
}
XMLNode* child;
child = new XMLNode (X_("Input"));
child->add_child_nocopy (_async_in->get_state());
node->add_child_nocopy (*child);
child = new XMLNode (X_("Output"));
child->add_child_nocopy (_async_out->get_state());
node->add_child_nocopy (*child);
return *node;
}
int
SurfacePort::set_state (const XMLNode& node, int version)
{
if (dynamic_cast<MIDI::IPMIDIPort*>(_input_port)) {
return 0;
}
XMLNode* child;
if ((child = node.child (X_("Input"))) != 0) {
XMLNode* portnode = child->child (Port::state_node_name.c_str());
if (portnode) {
_async_in->set_state (*portnode, version);
}
}
if ((child = node.child (X_("Output"))) != 0) {
XMLNode* portnode = child->child (Port::state_node_name.c_str());
if (portnode) {
_async_out->set_state (*portnode, version);
}
}
return 0;
}
void
SurfacePort::reconnect ()
{
_async_out->reconnect ();
_async_in->reconnect ();
}
std::string
SurfacePort::input_name () const
{
return _async_in->name();
}
std::string
SurfacePort::output_name () const
{
return _async_out->name();
}
// wrapper for one day when strerror_r is working properly
string fetch_errmsg (int error_number)
{
char * msg = strerror (error_number);
return msg;
}
int
SurfacePort::write (const MidiByteArray & mba)
{
if (mba.empty()) {
DEBUG_TRACE (DEBUG::MackieControl, string_compose ("port %1 asked to write an empty MBA\n", output_port().name()));
return 0;
}
DEBUG_TRACE (DEBUG::MackieControl, string_compose ("port %1 write %2\n", output_port().name(), mba));
if (mba[0] != 0xf0 && mba.size() > 3) {
std::cerr << "TOO LONG WRITE: " << mba << std::endl;
}
/* this call relies on std::vector<T> using contiguous storage. not
* actually guaranteed by the standard, but way, way beyond likely.
*/
int count = output_port().write (&mba[0], mba.size(), 0);
if (count != (int) mba.size()) {
if (errno == 0) {
cout << "port overflow on " << output_port().name() << ". Did not write all of " << mba << endl;
} else if (errno != EAGAIN) {
ostringstream os;
os << "Surface: couldn't write to port " << output_port().name();
os << ", error: " << fetch_errmsg (errno) << "(" << errno << ")";
cout << os.str() << endl;
}
return -1;
}
return 0;
}
ostream &
Mackie::operator << (ostream & os, const SurfacePort & port)
{
os << "{ ";
os << "name: " << port.input_port().name() << " " << port.output_port().name();
os << "; ";
os << " }";
return os;
}
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