2 Copyright (C) 2009 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <sigc++/signal.h>
23 #include "pbd/pthread_utils.h"
25 #include "midi++/manager.h"
26 #include "midi++/port.h"
28 #include "ardour/debug.h"
29 #include "ardour/audioengine.h"
30 #include "ardour/midi_ui.h"
31 #include "ardour/session.h"
32 #include "ardour/session_event.h"
33 #include "ardour/types.h"
36 using namespace ARDOUR
;
42 BaseUI::RequestType
MidiControlUI::PortChange
= BaseUI::new_request_type();
43 MidiControlUI
* MidiControlUI::_instance
= 0;
45 #include "pbd/abstract_ui.cc" /* instantiate the template */
47 MidiControlUI::MidiControlUI (Session
& s
)
48 : AbstractUI
<MidiUIRequest
> (_("midiui"))
51 MIDI::Manager::instance()->PortsChanged
.connect_same_thread (rebind_connection
, boost::bind (&MidiControlUI::change_midi_ports
, this));
55 MidiControlUI::~MidiControlUI ()
62 MidiControlUI::do_request (MidiUIRequest
* req
)
64 if (req
->type
== PortChange
) {
66 /* restart event loop with new ports */
67 DEBUG_TRACE (DEBUG::MidiIO
, "reset ports\n");
70 } else if (req
->type
== CallSlot
) {
73 if (getenv ("DEBUG_THREADED_SIGNALS")) {
74 cerr
<< "MIDI UI calls a slot\n";
80 } else if (req
->type
== Quit
) {
87 MidiControlUI::change_midi_ports ()
89 MidiUIRequest
* req
= get_request (PortChange
);
97 MidiControlUI::midi_input_handler (IOCondition ioc
, MIDI::Port
* port
)
99 DEBUG_TRACE (DEBUG::MidiIO
, string_compose ("something happend on %1\n", port
->name()));
107 CrossThreadChannel::drain (port
->selectable());
109 DEBUG_TRACE (DEBUG::MidiIO
, string_compose ("data available on %1\n", port
->name()));
110 nframes64_t now
= _session
.engine().frame_time();
118 MidiControlUI::clear_ports ()
120 for (PortSources::iterator i
= port_sources
.begin(); i
!= port_sources
.end(); ++i
) {
121 g_source_destroy (*i
);
125 port_sources
.clear ();
129 MidiControlUI::reset_ports ()
133 MIDI::Manager::PortList plist
= MIDI::Manager::instance()->get_midi_ports ();
135 for (MIDI::Manager::PortList::iterator i
= plist
.begin(); i
!= plist
.end(); ++i
) {
138 if ((fd
= (*i
)->selectable ()) >= 0) {
139 Glib::RefPtr
<IOSource
> psrc
= IOSource::create (fd
, IO_IN
|IO_HUP
|IO_ERR
);
141 psrc
->connect (sigc::bind (sigc::mem_fun (this, &MidiControlUI::midi_input_handler
), *i
));
142 psrc
->attach (_main_loop
->get_context());
144 // glibmm hack: for now, store only the GSource*
146 port_sources
.push_back (psrc
->gobj());
147 g_source_ref (psrc
->gobj());
153 MidiControlUI::thread_init ()
155 struct sched_param rtparam
;
157 char* c
= new char[7];
158 strcpy (c
, X_("midiUI"));
159 pthread_set_name (c
);
161 cerr
<< "MIDI UI running\n";
163 PBD::notify_gui_about_thread_creation (X_("gui"), pthread_self(), X_("MIDI"), 2048);
164 SessionEvent::create_per_thread_pool (X_("MIDI I/O"), 128);
166 memset (&rtparam
, 0, sizeof (rtparam
));
167 rtparam
.sched_priority
= 9; /* XXX should be relative to audio (JACK) thread */
169 if (pthread_setschedparam (pthread_self(), SCHED_FIFO
, &rtparam
) != 0) {
170 // do we care? not particularly.