160 lines
4.3 KiB
C++
160 lines
4.3 KiB
C++
/*
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Copyright (C) 2006,2007 John Anderson
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <sstream>
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#include <cstring>
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#include <cerrno>
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#include <sigc++/sigc++.h>
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#include <boost/shared_array.hpp>
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#include "midi++/types.h"
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#include "midi++/port.h"
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#include "midi++/jack_midi_port.h"
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#include "midi++/ipmidi_port.h"
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#include "midi++/manager.h"
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#include "ardour/debug.h"
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#include "ardour/rc_configuration.h"
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#include "ardour/session.h"
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#include "ardour/audioengine.h"
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#include "controls.h"
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#include "mackie_control_protocol.h"
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#include "surface.h"
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#include "surface_port.h"
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#include "i18n.h"
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using namespace std;
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using namespace Mackie;
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using namespace PBD;
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/** @param input_port Input MIDI::Port; this object takes responsibility for
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* adding & removing it from the MIDI::Manager and destroying it. @param
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* output_port Output MIDI::Port; responsibility similarly taken.
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*/
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SurfacePort::SurfacePort (Surface& s)
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: _surface (&s)
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, _input_port (0)
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, _output_port (0)
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{
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if (_surface->mcp().device_info().uses_ipmidi()) {
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_input_port = new MIDI::IPMIDIPort (_surface->mcp().ipmidi_base() +_surface->number());
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_output_port = _input_port;
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} else {
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ARDOUR::PortEngine& port_engine (ARDOUR::AudioEngine::instance()->port_engine());
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_input_port = new MIDI::JackMIDIPort (string_compose (_("%1 in"), _surface->name()), MIDI::Port::IsInput, port_engine);
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_output_port =new MIDI::JackMIDIPort (string_compose (_("%1 out"), _surface->name()), MIDI::Port::IsOutput, port_engine);
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/* MackieControl has its own thread for handling input from the input
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* port, and we don't want anything handling output from the output
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* port. This stops the Generic MIDI UI event loop in ardour from
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* attempting to handle these ports.
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*/
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_input_port->set_centrally_parsed (false);
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_output_port->set_centrally_parsed (false);
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MIDI::Manager * mm = MIDI::Manager::instance();
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mm->add_port (_input_port);
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mm->add_port (_output_port);
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}
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}
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SurfacePort::~SurfacePort()
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{
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if (_surface->mcp().device_info().uses_ipmidi()) {
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delete _input_port;
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} else {
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MIDI::Manager* mm = MIDI::Manager::instance ();
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if (_input_port) {
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mm->remove_port (_input_port);
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delete _input_port;
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}
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if (_output_port) {
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_output_port->drain (10000);
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mm->remove_port (_output_port);
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delete _output_port;
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}
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}
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}
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// wrapper for one day when strerror_r is working properly
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string fetch_errmsg (int error_number)
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{
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char * msg = strerror (error_number);
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return msg;
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}
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int
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SurfacePort::write (const MidiByteArray & mba)
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{
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if (mba.empty()) {
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DEBUG_TRACE (DEBUG::MackieControl, string_compose ("port %1 asked to write an empty MBA\n", output_port().name()));
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return 0;
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}
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DEBUG_TRACE (DEBUG::MackieControl, string_compose ("port %1 write %2\n", output_port().name(), mba));
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if (mba[0] != 0xf0 && mba.size() > 3) {
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std::cerr << "TOO LONG WRITE: " << mba << std::endl;
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}
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/* this call relies on std::vector<T> using contiguous storage. not
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* actually guaranteed by the standard, but way, way beyond likely.
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*/
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int count = output_port().write (&mba[0], mba.size(), 0);
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if (count != (int) mba.size()) {
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if (errno == 0) {
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cout << "port overflow on " << output_port().name() << ". Did not write all of " << mba << endl;
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} else if (errno != EAGAIN) {
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ostringstream os;
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os << "Surface: couldn't write to port " << output_port().name();
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os << ", error: " << fetch_errmsg (errno) << "(" << errno << ")";
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cout << os.str() << endl;
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}
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return -1;
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}
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return 0;
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}
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ostream &
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Mackie::operator << (ostream & os, const SurfacePort & port)
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{
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os << "{ ";
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os << "name: " << port.input_port().name() << " " << port.output_port().name();
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os << "; ";
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os << " }";
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return os;
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}
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