/*
- Copyright (C) 1999-2002 Paul Davis
+ Copyright (C) 1999-2002 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#include <string>
#include <cmath>
#include <cerrno>
+#include <cassert>
#include <unistd.h>
#include <fcntl.h>
#include <poll.h>
-#include <midi++/mmc.h>
-#include <midi++/port.h>
-#include <midi++/manager.h>
-#include <pbd/error.h>
-#include <glibmm/thread.h>
-#include <pbd/pthread_utils.h>
+#include <boost/shared_ptr.hpp>
-#include <ardour/configuration.h>
-#include <ardour/audioengine.h>
-#include <ardour/session.h>
-#include <ardour/audio_track.h>
-#include <ardour/audio_diskstream.h>
-#include <ardour/slave.h>
-#include <ardour/cycles.h>
+#include "midi++/mmc.h"
+#include "midi++/port.h"
+#include "midi++/manager.h"
+#include "pbd/error.h"
+#include <glibmm/thread.h>
+#include "pbd/pthread_utils.h"
+
+#include "ardour/configuration.h"
+#include "ardour/audioengine.h"
+#include "ardour/session.h"
+#include "ardour/audio_track.h"
+#include "ardour/midi_track.h"
+#include "ardour/audio_diskstream.h"
+#include "ardour/slave.h"
+#include "ardour/cycles.h"
+#include "ardour/smpte.h"
#include "i18n.h"
MachineControl::CommandSignature MMC_CommandSignature;
MachineControl::ResponseSignature MMC_ResponseSignature;
-MultiAllocSingleReleasePool Session::MIDIRequest::pool ("midi", sizeof (Session::MIDIRequest), 1024);
+
+void
+Session::midi_panic()
+{
+ {
+ boost::shared_ptr<RouteList> r = routes.reader ();
+
+ for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+ MidiTrack *track = dynamic_cast<MidiTrack*>((*i).get());
+ if (track != 0) {
+ track->midi_panic();
+ }
+ }
+ }
+}
int
Session::use_config_midi_ports ()
set_midi_port ("");
}
+ if (default_midi_clock_port) {
+ set_midi_clock_port (default_midi_clock_port->name());
+ } else {
+ set_midi_clock_port ("");
+ }
+
return 0;
-}
+}
/***********************************************************************
MTC, MMC, etc.
**********************************************************************/
-void
-Session::set_mmc_control (bool yn)
-{
- if (mmc_control == yn) {
- return;
- }
-
- mmc_control = yn;
- set_dirty();
- poke_midi_thread ();
-
- ControlChanged (MMCControl); /* EMIT SIGNAL */
-}
-
-void
-Session::set_midi_control (bool yn)
-{
- if (midi_control == yn) {
- return;
- }
-
- midi_control = yn;
- set_dirty();
- poke_midi_thread ();
-
- ControlChanged (MidiControl); /* EMIT SIGNAL */
-}
-
-void
-Session::set_send_mtc (bool yn)
-{
- /* set the persistent option value regardless */
-
- send_midi_timecode = yn;
- set_dirty();
-
- /* only set the internal flag if we have
- a port.
- */
-
- if (_mtc_port == 0 || send_mtc == yn) {
- return;
- }
-
- send_mtc = yn;
- ControlChanged (SendMTC); /* EMIT SIGNAL */
-}
-
-void
-Session::set_send_mmc (bool yn)
-{
- if (_mmc_port == 0) {
- return;
- }
-
- if (send_midi_machine_control == yn) {
- return;
- }
-
- /* only set the internal flag if we have
- a port.
- */
-
- if (_mmc_port) {
- send_mmc = yn;
- }
-
- /* set the persistent option value regardless */
-
- send_midi_machine_control = yn;
- set_dirty();
-
- ControlChanged (SendMMC); /* EMIT SIGNAL */
-}
-
-void
-Session::set_midi_feedback (bool yn)
-{
-}
-
-bool
-Session::get_midi_feedback () const
-{
- return false;
-}
-
-bool
-Session::get_send_mtc () const
-{
- return send_mtc;
-}
-
-bool
-Session::get_send_mmc () const
-{
- return send_mmc;
-}
-
int
Session::set_mtc_port (string port_tag)
{
return 0;
}
+void
+Session::set_mmc_receive_device_id (uint32_t device_id)
+{
+ if (mmc) {
+ mmc->set_receive_device_id (device_id);
+ }
+}
+
+void
+Session::set_mmc_send_device_id (uint32_t device_id)
+{
+ if (mmc) {
+ mmc->set_send_device_id (device_id);
+ }
+}
+
int
Session::set_mmc_port (string port_tag)
{
+ MIDI::byte old_recv_device_id = 0;
+ MIDI::byte old_send_device_id = 0;
+ bool reset_id = false;
+
if (port_tag.length() == 0) {
if (_mmc_port == 0) {
return 0;
_mmc_port = port;
if (mmc) {
+ old_recv_device_id = mmc->receive_device_id();
+ old_recv_device_id = mmc->send_device_id();
+ reset_id = true;
delete mmc;
}
- mmc = new MIDI::MachineControl (*_mmc_port, 1.0,
+ mmc = new MIDI::MachineControl (*_mmc_port, 1.0,
MMC_CommandSignature,
MMC_ResponseSignature);
+ if (reset_id) {
+ mmc->set_receive_device_id (old_recv_device_id);
+ mmc->set_send_device_id (old_send_device_id);
+ }
- mmc->Play.connect
+ mmc->Play.connect
(mem_fun (*this, &Session::mmc_deferred_play));
- mmc->DeferredPlay.connect
+ mmc->DeferredPlay.connect
(mem_fun (*this, &Session::mmc_deferred_play));
- mmc->Stop.connect
+ mmc->Stop.connect
(mem_fun (*this, &Session::mmc_stop));
- mmc->FastForward.connect
+ mmc->FastForward.connect
(mem_fun (*this, &Session::mmc_fast_forward));
- mmc->Rewind.connect
+ mmc->Rewind.connect
(mem_fun (*this, &Session::mmc_rewind));
- mmc->Pause.connect
+ mmc->Pause.connect
(mem_fun (*this, &Session::mmc_pause));
- mmc->RecordPause.connect
+ mmc->RecordPause.connect
(mem_fun (*this, &Session::mmc_record_pause));
- mmc->RecordStrobe.connect
+ mmc->RecordStrobe.connect
(mem_fun (*this, &Session::mmc_record_strobe));
- mmc->RecordExit.connect
+ mmc->RecordExit.connect
(mem_fun (*this, &Session::mmc_record_exit));
- mmc->Locate.connect
+ mmc->Locate.connect
(mem_fun (*this, &Session::mmc_locate));
- mmc->Step.connect
+ mmc->Step.connect
(mem_fun (*this, &Session::mmc_step));
- mmc->Shuttle.connect
+ mmc->Shuttle.connect
(mem_fun (*this, &Session::mmc_shuttle));
mmc->TrackRecordStatusChange.connect
(mem_fun (*this, &Session::mmc_record_enable));
+
/* also handle MIDI SPP because its so common */
_mmc_port->input()->start.connect (mem_fun (*this, &Session::spp_start));
_mmc_port->input()->contineu.connect (mem_fun (*this, &Session::spp_continue));
_mmc_port->input()->stop.connect (mem_fun (*this, &Session::spp_stop));
-
+
Config->set_mmc_port_name (port_tag);
out:
int
Session::set_midi_port (string port_tag)
{
+#if 0
if (port_tag.length() == 0) {
if (_midi_port == 0) {
return 0;
}
_midi_port = port;
-
+
/* XXX need something to forward this to control protocols ? or just
- use the signal below
+ use the signal below
*/
Config->set_midi_port_name (port_tag);
out:
+#endif
MIDI_PortChanged(); /* EMIT SIGNAL */
change_midi_ports ();
set_dirty();
return 0;
}
+int
+Session::set_midi_clock_port (string port_tag)
+{
+ MIDIClock_Slave *ms;
+
+ if (port_tag.length() == 0) {
+
+ if (_slave && ((ms = dynamic_cast<MIDIClock_Slave*> (_slave)) != 0)) {
+ error << _("Ardour is slaved to MIDI Clock - port cannot be reset") << endmsg;
+ return -1;
+ }
+
+ if (_midi_clock_port == 0) {
+ return 0;
+ }
+
+ _midi_clock_port = 0;
+ goto out;
+ }
+
+ MIDI::Port* port;
+
+ if ((port = MIDI::Manager::instance()->port (port_tag)) == 0) {
+ error << string_compose (_("unknown port %1 requested for MIDI Clock"), port_tag) << endl;
+ return -1;
+ }
+
+ _midi_clock_port = port;
+
+ if (_slave && ((ms = dynamic_cast<MIDIClock_Slave*> (_slave)) != 0)) {
+ ms->rebind (*port);
+ }
+
+ Config->set_midi_clock_port_name (port_tag);
+
+ out:
+ MIDIClock_PortChanged(); /* EMIT SIGNAL */
+ change_midi_ports ();
+ set_dirty();
+ return 0;
+}
+
void
Session::set_trace_midi_input (bool yn, MIDI::Port* port)
{
MIDI::Parser* input_parser;
+ cerr << "enabling tracing: " << yn << " for input port " << port->name() << endl;
+
if (port) {
if ((input_parser = port->input()) != 0) {
input_parser->trace (yn, &cout, "input: ");
input_parser->trace (yn, &cout, "input: ");
}
}
-
+
if (_mtc_port && _mtc_port != _mmc_port) {
if ((input_parser = _mtc_port->input()) != 0) {
input_parser->trace (yn, &cout, "input: ");
input_parser->trace (yn, &cout, "input: ");
}
}
+
+ if (_midi_clock_port
+ && _midi_clock_port != _mmc_port
+ && _midi_clock_port != _mtc_port
+ && _midi_clock_port != _midi_port) {
+ if ((input_parser = _midi_clock_port->input()) != 0) {
+ input_parser->trace (yn, &cout, "input: ");
+ }
+ }
}
Config->set_trace_midi_input (yn);
output_parser->trace (yn, &cout, "output: ");
}
}
-
+
if (_mtc_port && _mtc_port != _mmc_port) {
if ((output_parser = _mtc_port->output()) != 0) {
output_parser->trace (yn, &cout, "output: ");
return input_parser->tracing();
}
}
-
+
if (_mtc_port) {
if ((input_parser = _mtc_port->input()) != 0) {
return input_parser->tracing();
return output_parser->tracing();
}
}
-
+
if (_mtc_port) {
if ((output_parser = _mtc_port->output()) != 0) {
return output_parser->tracing();
Session::setup_midi_control ()
{
outbound_mtc_smpte_frame = 0;
- next_quarter_frame_to_send = -1;
+ next_quarter_frame_to_send = 0;
/* setup the MMC buffer */
-
+
mmc_buffer[0] = 0xf0; // SysEx
mmc_buffer[1] = 0x7f; // Real Time SysEx ID for MMC
- mmc_buffer[2] = 0x7f; // "broadcast" device ID
+ mmc_buffer[2] = (mmc ? mmc->send_device_id() : 0x7f);
mmc_buffer[3] = 0x6; // MCC
/* Set up the qtr frame message */
-
+
mtc_msg[0] = 0xf1;
mtc_msg[2] = 0xf1;
mtc_msg[4] = 0xf1;
mtc_msg[10] = 0xf1;
mtc_msg[12] = 0xf1;
mtc_msg[14] = 0xf1;
+}
- if (_mmc_port != 0) {
-
- send_mmc = send_midi_machine_control;
-
- } else {
-
- mmc = 0;
- send_mmc = false;
- }
-
- if (_mtc_port != 0) {
-
- send_mtc = send_midi_timecode;
-
- } else {
-
- send_mtc = false;
+void
+Session::spp_start (Parser& ignored, nframes_t timestamp)
+{
+ if (Config->get_mmc_control() && (Config->get_slave_source() != MTC)) {
+ request_transport_speed (1.0);
}
}
-int
-Session::midi_read (MIDI::Port* port)
+void
+Session::spp_continue (Parser& ignored, nframes_t timestamp)
{
- MIDI::byte buf[512];
-
- /* reading from the MIDI port activates the Parser
- that in turn generates signals that we care
- about. the port is already set to NONBLOCK so that
- can read freely here.
- */
-
- while (1) {
-
- // cerr << "+++ READ ON " << port->name() << endl;
-
- int nread = port->read (buf, sizeof (buf));
+ spp_start (ignored, timestamp);
+}
- // cerr << "-- READ (" << nread << " ON " << port->name() << endl;
-
- if (nread > 0) {
- if ((size_t) nread < sizeof (buf)) {
- break;
- } else {
- continue;
- }
- } else if (nread == 0) {
- break;
- } else if (errno == EAGAIN) {
- break;
- } else {
- fatal << string_compose(_("Error reading from MIDI port %1"), port->name()) << endmsg;
- /*NOTREACHED*/
- }
+void
+Session::spp_stop (Parser& ignored, nframes_t timestamp)
+{
+ if (Config->get_mmc_control()) {
+ request_stop ();
}
-
- return 0;
}
-
+/*
void
-Session::spp_start (Parser& ignored)
+Session::midi_clock_start (Parser& ignored, nframes_t timestamp)
{
- if (mmc_control && (_slave_type != MTC)) {
+ if (Config->get_slave_source() == MIDIClock) {
request_transport_speed (1.0);
}
}
void
-Session::spp_continue (Parser& ignored)
+Session::midi_clock_continue (Parser& parser, nframes_t timestamp)
{
- spp_start (ignored);
+ midi_clock_start (parser, 0);
}
void
-Session::spp_stop (Parser& ignored)
+Session::midi_clock_stop (Parser& ignored, nframes_t timestamp)
{
- if (mmc_control) {
+ if (Config->get_slave_source() == MIDIClock) {
request_stop ();
}
}
+*/
void
Session::mmc_deferred_play (MIDI::MachineControl &mmc)
{
- if (mmc_control && (_slave_type != MTC)) {
+ if (Config->get_mmc_control() && (Config->get_slave_source() != MTC)) {
request_transport_speed (1.0);
}
}
void
Session::mmc_record_pause (MIDI::MachineControl &mmc)
{
- if (mmc_control) {
+ if (Config->get_mmc_control()) {
maybe_enable_record();
}
}
void
Session::mmc_record_strobe (MIDI::MachineControl &mmc)
{
- if (!mmc_control)
+ if (!Config->get_mmc_control())
return;
/* record strobe does an implicit "Play" command */
its not the same as maybe_enable_record() though, because
that *can* switch to Recording, which we do not want.
*/
-
+
save_state ("", true);
- save_history ("");
g_atomic_int_set (&_record_status, Enabled);
RecordStateChanged (); /* EMIT SIGNAL */
-
+
request_transport_speed (1.0);
} else {
void
Session::mmc_record_exit (MIDI::MachineControl &mmc)
{
- if (mmc_control) {
+ if (Config->get_mmc_control()) {
disable_record (false);
}
}
void
Session::mmc_stop (MIDI::MachineControl &mmc)
{
- if (mmc_control) {
+ if (Config->get_mmc_control()) {
request_stop ();
}
}
void
Session::mmc_pause (MIDI::MachineControl &mmc)
{
- if (mmc_control) {
+ if (Config->get_mmc_control()) {
/* We support RECORD_PAUSE, so the spec says that
we must interpret PAUSE like RECORD_PAUSE if
static bool step_queued = false;
void
-
Session::mmc_step (MIDI::MachineControl &mmc, int steps)
{
- if (!mmc_control) {
+ if (!Config->get_mmc_control()) {
return;
}
struct timeval diff = { 0, 0 };
gettimeofday (&now, 0);
-
+
timersub (&now, &last_mmc_step, &diff);
gettimeofday (&now, 0);
if (last_mmc_step.tv_sec != 0 && (diff.tv_usec + (diff.tv_sec * 1000000)) < _engine.usecs_per_cycle()) {
return;
}
-
+
double diff_secs = diff.tv_sec + (diff.tv_usec / 1000000.0);
- double cur_speed = (((steps * 0.5) * smpte_frames_per_second) / diff_secs) / smpte_frames_per_second;
-
+ double cur_speed = (((steps * 0.5) * smpte_frames_per_second()) / diff_secs) / smpte_frames_per_second();
+
if (_transport_speed == 0 || cur_speed * _transport_speed < 0) {
/* change direction */
step_speed = cur_speed;
step_speed *= 0.25;
#if 0
- cerr << "delta = " << diff_secs
+ cerr << "delta = " << diff_secs
<< " ct = " << _transport_speed
<< " steps = " << steps
- << " new speed = " << cur_speed
+ << " new speed = " << cur_speed
<< " speed = " << step_speed
<< endl;
-#endif
+#endif
request_transport_speed (step_speed);
last_mmc_step = now;
void
Session::mmc_rewind (MIDI::MachineControl &mmc)
{
- if (mmc_control) {
+ if (Config->get_mmc_control()) {
request_transport_speed(-8.0f);
}
}
void
Session::mmc_fast_forward (MIDI::MachineControl &mmc)
{
- if (mmc_control) {
+ if (Config->get_mmc_control()) {
request_transport_speed(8.0f);
}
}
void
Session::mmc_locate (MIDI::MachineControl &mmc, const MIDI::byte* mmc_tc)
{
- if (!mmc_control) {
+ if (!Config->get_mmc_control()) {
return;
}
- jack_nframes_t target_frame;
+ nframes_t target_frame;
SMPTE::Time smpte;
smpte.hours = mmc_tc[0] & 0xf;
smpte.minutes = mmc_tc[1];
smpte.seconds = mmc_tc[2];
smpte.frames = mmc_tc[3];
-
+ smpte.rate = smpte_frames_per_second();
+ smpte.drop = smpte_drop_frames();
+
// Also takes smpte offset into account:
smpte_to_sample( smpte, target_frame, true /* use_offset */, false /* use_subframes */ );
-
+
if (target_frame > max_frames) {
target_frame = max_frames;
}
void
Session::mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw)
{
- cerr << "MMC shuttle, speed = " << speed << endl;
-
- if (!mmc_control) {
+ if (!Config->get_mmc_control()) {
return;
}
- if (shuttle_speed_threshold >= 0 && speed > shuttle_speed_threshold) {
- speed *= shuttle_speed_factor;
+ if (Config->get_shuttle_speed_threshold() >= 0 && speed > Config->get_shuttle_speed_threshold()) {
+ speed *= Config->get_shuttle_speed_factor();
}
- cerr << "requested MMC control speed = " << speed << endl;
-
if (forw) {
request_transport_speed (speed);
} else {
void
Session::mmc_record_enable (MIDI::MachineControl &mmc, size_t trk, bool enabled)
{
- if (mmc_control) {
+ if (Config->get_mmc_control()) {
RouteList::iterator i;
boost::shared_ptr<RouteList> r = routes.reader();
-
+
for (i = r->begin(); i != r->end(); ++i) {
AudioTrack *at;
}
}
-void
-Session::send_full_time_code_in_another_thread ()
-{
- send_time_code_in_another_thread (true);
-}
-
-void
-Session::send_midi_time_code_in_another_thread ()
-{
- send_time_code_in_another_thread (false);
-}
-
-void
-Session::send_time_code_in_another_thread (bool full)
-{
- jack_nframes_t two_smpte_frames_duration;
- jack_nframes_t quarter_frame_duration;
-
- /* Duration of two smpte frames */
- two_smpte_frames_duration = ((long) _frames_per_smpte_frame) << 1;
-
- /* Duration of one quarter frame */
- quarter_frame_duration = ((long) _frames_per_smpte_frame) >> 2;
-
- if (_transport_frame < (outbound_mtc_smpte_frame + (next_quarter_frame_to_send * quarter_frame_duration)))
- {
- /* There is no work to do.
- We throttle this here so that we don't overload
- the transport thread with requests.
- */
- return;
- }
-
- MIDIRequest* request = new MIDIRequest;
-
- if (full) {
- request->type = MIDIRequest::SendFullMTC;
- } else {
- request->type = MIDIRequest::SendMTC;
- }
-
- midi_requests.write (&request, 1);
- poke_midi_thread ();
-}
-
void
Session::change_midi_ports ()
{
poke_midi_thread ();
}
+/** Send MTC Full Frame message (complete SMPTE time) for the start of this cycle.
+ * This resets the MTC code, the next quarter frame message that is sent will be
+ * the first one with the beginning of this cycle as the new start point.
+ */
int
-Session::send_full_time_code ()
-
+Session::send_full_time_code(nframes_t nframes)
{
+ /* This function could easily send at a given frame offset, but would
+ * that be useful? Does ardour do sub-block accurate locating? [DR] */
+
MIDI::byte msg[10];
SMPTE::Time smpte;
- if (_mtc_port == 0 || !send_mtc) {
+ _send_smpte_update = false;
+
+ if (_mtc_port == 0 || !session_send_mtc) {
return 0;
}
// Get smpte time for this transport frame
sample_to_smpte(_transport_frame, smpte, true /* use_offset */, false /* no subframes */);
- // Check for negative smpte time and prepare for quarter frame transmission
- if (smpte.negative) {
- // Negative mtc is not defined, so sync slave to smpte zero.
- // When _transport_frame gets there we will start transmitting quarter frames
- smpte.hours = 0;
- smpte.minutes = 0;
- smpte.seconds = 0;
- smpte.frames = 0;
- smpte.subframes = 0;
- smpte.negative = false;
- smpte_to_sample( smpte, outbound_mtc_smpte_frame, true, false );
- transmitting_smpte_time = smpte;
- } else {
- transmitting_smpte_time = smpte;
- outbound_mtc_smpte_frame = _transport_frame;
- if (((mtc_smpte_bits >> 5) != MIDI::MTC_25_FPS) && (transmitting_smpte_time.frames % 2)) {
- // start MTC quarter frame transmission on an even frame
- SMPTE::increment( transmitting_smpte_time );
- outbound_mtc_smpte_frame += (jack_nframes_t) _frames_per_smpte_frame;
- }
+ transmitting_smpte_time = smpte;
+ outbound_mtc_smpte_frame = _transport_frame;
+
+ // I don't understand this bit yet.. [DR]
+ if (((mtc_smpte_bits >> 5) != MIDI::MTC_25_FPS) && (transmitting_smpte_time.frames % 2)) {
+ // start MTC quarter frame transmission on an even frame
+ SMPTE::increment( transmitting_smpte_time );
+ outbound_mtc_smpte_frame += (nframes_t) _frames_per_smpte_frame;
}
// Compensate for audio latency
next_quarter_frame_to_send = 0;
- // Sync slave to the same smpte time as we are on (except if negative, see above)
+ // Sync slave to the same SMPTE time as we are on
msg[0] = 0xf0;
msg[1] = 0x7f;
msg[2] = 0x7f;
msg[7] = smpte.seconds;
msg[8] = smpte.frames;
- {
- Glib::Mutex::Lock lm (midi_lock);
-
- if (_mtc_port->midimsg (msg, sizeof (msg))) {
- error << _("Session: could not send full MIDI time code") << endmsg;
-
- return -1;
- }
+ cerr << "MTC: Sending full time code at " << outbound_mtc_smpte_frame << endl;
+
+ // Send message at offset 0, sent time is for the start of this cycle
+ if (_mtc_port->midimsg (msg, sizeof (msg), 0)) {
+ error << _("Session: could not send full MIDI time code") << endmsg;
+ return -1;
}
return 0;
}
+/** Send MTC (quarter-frame) messages for this cycle.
+ * Must be called exactly once per cycle from the audio thread. Realtime safe.
+ * This function assumes the state of full SMPTE is sane, eg. the slave is
+ * expecting quarter frame messages and has the right frame of reference (any
+ * full MTC SMPTE time messages that needed to be sent should have been sent
+ * earlier already this cycle by send_full_time_code)
+ */
int
-Session::send_midi_time_code ()
+Session::send_midi_time_code_for_cycle(nframes_t nframes)
{
- if (_mtc_port == 0 || !send_mtc || transmitting_smpte_time.negative || (next_quarter_frame_to_send < 0) ) {
+ assert (next_quarter_frame_to_send >= 0);
+ assert (next_quarter_frame_to_send <= 7);
+
+ if (_mtc_port == 0 || !session_send_mtc || transmitting_smpte_time.negative
+ /*|| (next_quarter_frame_to_send < 0)*/ ) {
+ // cerr << "(MTC) Not sending MTC\n";
return 0;
}
- jack_nframes_t two_smpte_frames_duration;
- jack_nframes_t quarter_frame_duration;
+ /* Duration of one quarter frame */
+ nframes_t quarter_frame_duration = ((long) _frames_per_smpte_frame) >> 2;
- /* Duration of two smpte frames */
- two_smpte_frames_duration = ((long) _frames_per_smpte_frame) << 1;
+ // cerr << "(MTC) TR: " << _transport_frame << " - SF: " << outbound_mtc_smpte_frame
+ // << " - NQ: " << next_quarter_frame_to_send << " - FD" << quarter_frame_duration << endl;
+
+ // FIXME: this should always be true
+ //assert((outbound_mtc_smpte_frame + (next_quarter_frame_to_send * quarter_frame_duration))
+ // > _transport_frame);
- /* Duration of one quarter frame */
- quarter_frame_duration = ((long) _frames_per_smpte_frame) >> 2;
- while (_transport_frame >= (outbound_mtc_smpte_frame + (next_quarter_frame_to_send * quarter_frame_duration))) {
+ // Send quarter frames for this cycle
+ while (_transport_frame + nframes > (outbound_mtc_smpte_frame +
+ (next_quarter_frame_to_send * quarter_frame_duration))) {
- // Send quarter frames up to current time
- {
- Glib::Mutex::Lock lm (midi_lock);
+ // cerr << "(MTC) Next frame to send: " << next_quarter_frame_to_send << endl;
- switch(next_quarter_frame_to_send) {
+ switch (next_quarter_frame_to_send) {
case 0:
mtc_msg[1] = 0x00 | (transmitting_smpte_time.frames & 0xf);
break;
case 7:
mtc_msg[1] = 0x70 | (((mtc_smpte_bits|transmitting_smpte_time.hours) & 0xf0) >> 4);
break;
- }
-
- if (_mtc_port->midimsg (mtc_msg, 2)) {
- error << string_compose(_("Session: cannot send quarter-frame MTC message (%1)"), strerror (errno))
- << endmsg;
-
- return -1;
- }
+ }
- // cout << "smpte = " << transmitting_smpte_time.hours << ":" << transmitting_smpte_time.minutes << ":" << transmitting_smpte_time.seconds << ":" << transmitting_smpte_time.frames << ", qfm = " << next_quarter_frame_to_send << endl;
-
- // Increment quarter frame counter
- next_quarter_frame_to_send++;
-
- if (next_quarter_frame_to_send >= 8) {
- // Wrap quarter frame counter
- next_quarter_frame_to_send = 0;
- // Increment smpte time twice
- SMPTE::increment( transmitting_smpte_time );
- SMPTE::increment( transmitting_smpte_time );
- // Re-calculate timing of first quarter frame
- smpte_to_sample( transmitting_smpte_time, outbound_mtc_smpte_frame, true /* use_offset */, false );
- // Compensate for audio latency
- outbound_mtc_smpte_frame += _worst_output_latency;
- }
+ const nframes_t msg_time = (outbound_mtc_smpte_frame
+ + (quarter_frame_duration * next_quarter_frame_to_send));
+
+ // This message must fall within this block or something is broken
+ assert(msg_time >= _transport_frame);
+ assert(msg_time < _transport_frame + nframes);
+
+ nframes_t out_stamp = msg_time - _transport_frame;
+ assert(out_stamp < nframes);
+
+ if (_mtc_port->midimsg (mtc_msg, 2, out_stamp)) {
+ error << string_compose(_("Session: cannot send quarter-frame MTC message (%1)"), strerror (errno))
+ << endmsg;
+ return -1;
+ }
+
+ /*cerr << "(MTC) SMPTE: " << transmitting_smpte_time.hours
+ << ":" << transmitting_smpte_time.minutes
+ << ":" << transmitting_smpte_time.seconds
+ << ":" << transmitting_smpte_time.frames
+ << ", qfm = " << next_quarter_frame_to_send
+ << ", stamp = " << out_stamp
+ << ", delta = " << _transport_frame + out_stamp - last_time << endl;*/
+
+ // Increment quarter frame counter
+ next_quarter_frame_to_send++;
+
+ if (next_quarter_frame_to_send >= 8) {
+ // Wrap quarter frame counter
+ next_quarter_frame_to_send = 0;
+ // Increment smpte time twice
+ SMPTE::increment( transmitting_smpte_time );
+ SMPTE::increment( transmitting_smpte_time );
+ // Re-calculate timing of first quarter frame
+ //smpte_to_sample( transmitting_smpte_time, outbound_mtc_smpte_frame, true /* use_offset */, false );
+ outbound_mtc_smpte_frame += 8 * quarter_frame_duration;
+ // Compensate for audio latency
+ outbound_mtc_smpte_frame += _worst_output_latency;
}
}
+
return 0;
}
**********************************************************************/
void
-Session::send_mmc_in_another_thread (MIDI::MachineControl::Command cmd, jack_nframes_t target_frame)
-{
- MIDIRequest* request;
-
- if (_mtc_port == 0 || !send_mmc) {
- return;
- }
-
- request = new MIDIRequest;
- request->type = MIDIRequest::SendMMC;
- request->mmc_cmd = cmd;
- request->locate_frame = target_frame;
-
- midi_requests.write (&request, 1);
- poke_midi_thread ();
-}
-
-void
-Session::deliver_mmc (MIDI::MachineControl::Command cmd, jack_nframes_t where)
+Session::deliver_mmc (MIDI::MachineControl::Command cmd, nframes_t where)
{
using namespace MIDI;
int nbytes = 4;
SMPTE::Time smpte;
- if (_mmc_port == 0 || !send_mmc) {
+ if (_mmc_port == 0 || !session_send_mmc) {
+ // cerr << "Not delivering MMC " << _mmc_port << " - " << session_send_mmc << endl;
return;
}
mmc_buffer[nbytes++] = cmd;
// cerr << "delivering MMC, cmd = " << hex << (int) cmd << dec << endl;
-
+
switch (cmd) {
case MachineControl::cmdLocate:
smpte_time_subframes (where, smpte);
case MachineControl::cmdPlay:
/* always convert Play into Deferred Play */
+ /* Why? [DR] */
mmc_buffer[4] = MachineControl::cmdDeferredPlay;
break;
mmc_buffer[nbytes++] = 0xf7; // terminate SysEx/MMC message
- Glib::Mutex::Lock lm (midi_lock);
-
- if (_mmc_port->write (mmc_buffer, nbytes) != nbytes) {
+ if (_mmc_port->midimsg (mmc_buffer, nbytes, 0)) {
error << string_compose(_("MMC: cannot send command %1%2%3"), &hex, cmd, &dec) << endmsg;
}
}
return true;
}
-
-void
-Session::send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t ch, MIDI::EventTwoBytes data)
-{
- // in another thread, really
-
- MIDIRequest* request = new MIDIRequest;
-
- request->type = MIDIRequest::SendMessage;
- request->port = port;
- request->ev = ev;
- request->chan = ch;
- request->data = data;
-
- midi_requests.write (&request, 1);
- poke_midi_thread ();
-}
-
-void
-Session::deliver_midi (MIDI::Port * port, MIDI::byte* buf, int32_t bufsize)
-{
- // in another thread, really
-
- MIDIRequest* request = new MIDIRequest;
-
- request->type = MIDIRequest::Deliver;
- request->port = port;
- request->buf = buf;
- request->size = bufsize;
-
- midi_requests.write (&request, 1);
- poke_midi_thread ();
-}
-
-void
-Session::deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t ch, MIDI::EventTwoBytes data)
-{
- if (port == 0 || ev == MIDI::none) {
- return;
- }
-
- midi_msg[0] = (ev & 0xF0) | (ch & 0xF);
- midi_msg[1] = data.controller_number;
- midi_msg[2] = data.value;
-
- port->write (midi_msg, 3);
-}
-
-void
-Session::deliver_data (MIDI::Port * port, MIDI::byte* buf, int32_t size)
-{
- if (port) {
- port->write (buf, size);
- }
-
- /* this is part of the semantics of the Deliver request */
-
- delete [] buf;
-}
-
/*---------------------------------------------------------------------------
- MIDI THREAD
+ MIDI THREAD
---------------------------------------------------------------------------*/
int
return -1;
}
- // pthread_detach (midi_thread);
-
return 0;
}
void
Session::terminate_midi_thread ()
{
- MIDIRequest* request = new MIDIRequest;
- void* status;
+ if (midi_thread) {
- request->type = MIDIRequest::Quit;
+ MIDIRequest* request = new MIDIRequest;
+ void* status;
- midi_requests.write (&request, 1);
- poke_midi_thread ();
+ request->type = MIDIRequest::Quit;
- pthread_join (midi_thread, &status);
+ midi_requests.write (&request, 1);
+ poke_midi_thread ();
+
+ pthread_join (midi_thread, &status);
+ }
}
void
Session::poke_midi_thread ()
{
- char c;
+ static char c = 0;
if (write (midi_request_pipe[1], &c, 1) != 1) {
error << string_compose(_("cannot send signal to midi thread! (%1)"), strerror (errno)) << endmsg;
bool restart;
vector<MIDI::Port*> ports;
- PBD::ThreadCreatedWithRequestSize (pthread_self(), X_("MIDI"), 2048);
+ PBD::notify_gui_about_thread_creation (pthread_self(), X_("MIDI"), 2048);
memset (&rtparam, 0, sizeof (rtparam));
rtparam.sched_priority = 9; /* XXX should be relative to audio (JACK) thread */
-
+
if ((x = pthread_setschedparam (pthread_self(), SCHED_FIFO, &rtparam)) != 0) {
// do we care? not particularly.
- }
+ }
- /* set up the port vector; 4 is the largest possible size for now */
+ /* set up the port vector; 5 is the largest possible size for now */
- ports.push_back (0);
- ports.push_back (0);
- ports.push_back (0);
- ports.push_back (0);
+ ports.assign (5, (MIDI::Port*) 0);
while (1) {
pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
nfds++;
- /* if we are using MMC control, we obviously have to listen
- on the appropriate port.
- */
-
- if (mmc_control && _mmc_port && _mmc_port->selectable() >= 0) {
+ if (Config->get_mmc_control() && _mmc_port && _mmc_port->selectable() >= 0) {
pfd[nfds].fd = _mmc_port->selectable();
pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
ports[nfds] = _mmc_port;
+ //cerr << "MIDI port " << nfds << " = MMC @ " << _mmc_port << endl;
nfds++;
}
the relevant port.
*/
- if (_mtc_port && (_mtc_port != _mmc_port || !mmc_control) && _mtc_port->selectable() >= 0) {
+ if (_mtc_port && (_mtc_port != _mmc_port || !Config->get_mmc_control()) && _mtc_port->selectable() >= 0) {
pfd[nfds].fd = _mtc_port->selectable();
pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
ports[nfds] = _mtc_port;
+ //cerr << "MIDI port " << nfds << " = MTC @ " << _mtc_port << endl;
nfds++;
}
- if (_midi_port && (_midi_port != _mmc_port || !mmc_control) && (_midi_port != _mtc_port) && _midi_port->selectable() >= 0) {
+ if (_midi_clock_port && (_midi_clock_port != _mmc_port || !Config->get_mmc_control()) && _midi_clock_port->selectable() >= 0) {
+ pfd[nfds].fd = _midi_clock_port->selectable();
+ pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
+ ports[nfds] = _midi_clock_port;
+ nfds++;
+ }
+
+ /* if we are using MMC control, we obviously have to listen
+ the relevant port.
+ */
+
+ if (_midi_port && (_midi_port != _mmc_port || !Config->get_mmc_control()) && (_midi_port != _mtc_port) && _midi_port->selectable() >= 0) {
pfd[nfds].fd = _midi_port->selectable();
pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
ports[nfds] = _midi_port;
+ // cerr << "MIDI port " << nfds << " = MIDI @ " << _midi_port << endl;
nfds++;
}
-
+
if (!midi_timeouts.empty()) {
timeout = 100; /* 10msecs */
} else {
// cerr << "MIDI thread wakes at " << get_cycles () << endl;
fds_ready = 0;
- restart = false;
/* check the transport request pipe */
if (pfd[0].revents & POLLIN) {
char foo[16];
-
+
// cerr << "MIDI request FIFO ready\n";
fds_ready++;
while (midi_requests.read (&request, 1) == 1) {
switch (request->type) {
-
- case MIDIRequest::SendFullMTC:
- // cerr << "send full MTC\n";
- send_full_time_code ();
- // cerr << "... done\n";
- break;
-
- case MIDIRequest::SendMTC:
- // cerr << "send qtr MTC\n";
- send_midi_time_code ();
- // cerr << "... done\n";
- break;
-
- case MIDIRequest::SendMMC:
- // cerr << "send MMC\n";
- deliver_mmc (request->mmc_cmd, request->locate_frame);
- // cerr << "... done\n";
- break;
-
- case MIDIRequest::SendMessage:
- // cerr << "send Message\n";
- deliver_midi_message (request->port, request->ev, request->chan, request->data);
- // cerr << "... done\n";
- break;
-
- case MIDIRequest::Deliver:
- // cerr << "deliver\n";
- deliver_data (_midi_port, request->buf, request->size);
- // cerr << "... done\n";
- break;
-
case MIDIRequest::PortChange:
/* restart poll with new ports */
// cerr << "rebind\n";
restart = true;
break;
-
+
case MIDIRequest::Quit:
delete request;
pthread_exit_pbd (0);
/*NOTREACHED*/
break;
-
+
default:
break;
}
delete request;
}
- }
+ }
if (restart) {
continue;
// error << string_compose(_("Transport: error polling MIDI port %1 (revents =%2%3%4"), p, &hex, pfd[p].revents, &dec) << endmsg;
break;
}
-
+
if (pfd[p].revents & POLLIN) {
fds_ready++;
- midi_read (ports[p]);
+ ports[p]->parse ();
}
}
/* timeout driven */
-
+
if (fds_ready < 2 && timeout != -1) {
for (MidiTimeoutList::iterator i = midi_timeouts.begin(); i != midi_timeouts.end(); ) {
-
+
MidiTimeoutList::iterator tmp;
tmp = i;
++tmp;
-
+
if (!(*i)()) {
midi_timeouts.erase (i);
}
-
+
i = tmp;
}
}
}
}
-bool
-Session::get_mmc_control () const
-{
- return mmc_control;
-}
-
-bool
-Session::get_midi_control () const
-{
- return midi_control;
-}
projects / ardour.git / blobdiff