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livetrax/libs/ardour/midi_ui.cc

154 lines
3.9 KiB
C++

/*
* Copyright (C) 2009-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2010-2011 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2011-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
*
* 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 <cstdlib>
#include <sigc++/signal.h>
#include "pbd/pthread_utils.h"
#include "ardour/async_midi_port.h"
#include "ardour/debug.h"
#include "ardour/audioengine.h"
#include "ardour/midi_port.h"
#include "ardour/midiport_manager.h"
#include "ardour/midi_ui.h"
#include "ardour/session.h"
#include "ardour/session_event.h"
#include "ardour/types.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Glib;
#include "pbd/i18n.h"
MidiControlUI* MidiControlUI::_instance = 0;
#include "pbd/abstract_ui.cc" /* instantiate the template */
MidiControlUI::MidiControlUI (Session& s)
: AbstractUI<MidiUIRequest> (X_("midiUI"))
, _session (s)
{
_instance = this;
}
MidiControlUI::~MidiControlUI ()
{
/* stop the thread */
quit ();
/* drop all ports as GIO::Sources */
clear_ports ();
/* we no longer exist */
_instance = 0;
}
void*
MidiControlUI::request_factory (uint32_t num_requests)
{
/* AbstractUI<T>::request_buffer_factory() is a template method only
instantiated in this source module. To provide something visible for
use when registering the factory, we have this static method that is
template-free.
*/
return request_buffer_factory (num_requests);
}
void
MidiControlUI::do_request (MidiUIRequest* req)
{
if (req->type == Quit) {
BaseUI::quit ();
} else if (req->type == CallSlot) {
req->the_slot ();
}
}
bool
MidiControlUI::midi_input_handler (IOCondition ioc, boost::weak_ptr<AsyncMIDIPort> wport)
{
boost::shared_ptr<AsyncMIDIPort> port = wport.lock ();
if (!port) {
return false;
}
DEBUG_TRACE (DEBUG::MidiIO, string_compose ("something happend on %1\n", boost::shared_ptr<ARDOUR::Port> (port)->name()));
if (ioc & ~IO_IN) {
return false;
}
if (ioc & IO_IN) {
port->clear ();
DEBUG_TRACE (DEBUG::MidiIO, string_compose ("data available on %1\n", boost::shared_ptr<ARDOUR::Port>(port)->name()));
samplepos_t now = _session.engine().sample_time();
port->parse (now);
}
return true;
}
void
MidiControlUI::clear_ports ()
{
}
void
MidiControlUI::reset_ports ()
{
vector<boost::shared_ptr<AsyncMIDIPort> > ports;
boost::shared_ptr<AsyncMIDIPort> p;
if ((p = boost::dynamic_pointer_cast<AsyncMIDIPort> (_session.mmc_input_port()))) {
ports.push_back (p);
}
if ((p = boost::dynamic_pointer_cast<AsyncMIDIPort> (_session.scene_input_port()))) {
ports.push_back (p);
}
if (ports.empty()) {
return;
}
for (vector<boost::shared_ptr<AsyncMIDIPort> >::const_iterator pi = ports.begin(); pi != ports.end(); ++pi) {
(*pi)->xthread().set_receive_handler (sigc::bind (
sigc::mem_fun (this, &MidiControlUI::midi_input_handler), boost::weak_ptr<AsyncMIDIPort>(*pi)));
(*pi)->xthread().attach (_main_loop->get_context());
}
}
void
MidiControlUI::thread_init ()
{
pthread_set_name (X_("midiUI"));
PBD::notify_event_loops_about_thread_creation (pthread_self(), X_("midiUI"), 2048);
SessionEvent::create_per_thread_pool (X_("midiUI"), 128);
set_thread_priority ();
reset_ports ();
}