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/*
* Copyright (C) 2013-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2014-2017 Robin Gareus <robin@gareus.org>
* Copyright (C) 2015-2016 Nick Mainsbridge <mainsbridge@gmail.com>
*
* 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 <time.h>
#include <glibmm/miscutils.h>
#include "pbd/localtime_r.h"
#include "ardour/audioengine.h"
#include "ardour/filename_extensions.h"
#include "ardour/session.h"
#include "ardour/session_directory.h"
#include "ardour/tempo.h"
#include "jack_session.h"
using namespace ARDOUR;
using std::string;
JACKSession::JACKSession (Session* s)
: SessionHandlePtr (s)
{
}
JACKSession::~JACKSession ()
{
}
void
JACKSession::session_event (jack_session_event_t* event)
{
char timebuf[128], *tmp;
time_t n;
struct tm local_time;
time (&n);
localtime_r (&n, &local_time);
strftime (timebuf, sizeof(timebuf), "JS_%FT%T", &local_time);
while ((tmp = strchr(timebuf, ':'))) { *tmp = '.'; }
if (event->type == JackSessionSaveTemplate)
{
if (_session->save_template( timebuf )) {
event->flags = JackSessionSaveError;
} else {
string cmd ("ardour3 -P -U ");
cmd += event->client_uuid;
cmd += " -T ";
cmd += timebuf;
event->command_line = strdup (cmd.c_str());
}
}
else
{
if (_session->save_state (timebuf)) {
event->flags = JackSessionSaveError;
} else {
std::string xml_path (_session->session_directory().root_path());
std::string legalized_filename = legalize_for_path (timebuf) + statefile_suffix;
xml_path = Glib::build_filename (xml_path, legalized_filename);
string cmd ("ardour3 -P -U ");
cmd += event->client_uuid;
cmd += " \"";
cmd += xml_path;
cmd += '\"';
event->command_line = strdup (cmd.c_str());
}
}
/* this won't be called if the port engine in use is not JACK, so we do
not have to worry about the type of PortEngine::private_handle()
*/
jack_client_t* jack_client = (jack_client_t*) AudioEngine::instance()->port_engine().private_handle();
if (jack_client) {
jack_session_reply (jack_client, event);
}
if (event->type == JackSessionSaveAndQuit) {
_session->Quit (); /* EMIT SIGNAL */
}
jack_session_event_free (event);
}
void
JACKSession::timebase_callback (jack_transport_state_t /*state*/,
pframes_t /*nframes*/,
jack_position_t* pos,
int /*new_position*/)
{
Timecode::BBT_Time bbt;
TempoMap& tempo_map (_session->tempo_map());
samplepos_t tf;
/* see commit msg for e2c26e1b9 and Session::start_locate() for
details.
*/
tf = _session->nominal_jack_transport_sample().value_or (_session->transport_sample());
/* BBT info */
TempoMetric metric (tempo_map.metric_at (tf));
try {
bbt = tempo_map.bbt_at_sample (tf);
pos->bar = bbt.bars;
pos->beat = bbt.beats;
pos->tick = bbt.ticks;
// XXX still need to set bar_start_tick
pos->beats_per_bar = metric.meter().divisions_per_bar();
pos->beat_type = metric.meter().note_divisor();
pos->ticks_per_beat = Timecode::BBT_Time::ticks_per_beat;
pos->beats_per_minute = metric.tempo().note_types_per_minute();
pos->valid = jack_position_bits_t (pos->valid | JackPositionBBT);
} catch (...) {
/* no message */
}
#ifdef HAVE_JACK_VIDEO_SUPPORT
//poke audio video ratio so Ardour can track Video Sync
pos->audio_frames_per_video_frame = _session->sample_rate() / _session->timecode_frames_per_second();
pos->valid = jack_position_bits_t (pos->valid | JackAudioVideoRatio);
#endif
#ifdef HAVE_JACK_TIMCODE_SUPPORT
/* This is not yet defined in JACK */
/* Timecode info */
pos->timecode_offset = _session->config.get_timecode_offset();
t.timecode_frame_rate = _session->timecode_frames_per_second();
pos->valid = jack_position_bits_t (pos->valid | JackPositionTimecode);
#endif
#ifdef HAVE_JACK_LOOPING_SUPPORT
/* This is not yet defined in JACK */
if (_transport_speed) {
if (play_loop) {
Location* location = _session->locations()->auto_loop_location();
if (location) {
t.transport_state = JackTransportLooping;
t.loop_start = location->start();
t.loop_end = location->end();
t.valid = jack_transport_bits_t (t.valid | JackTransportLoop);
} else {
t.loop_start = 0;
t.loop_end = 0;
t.transport_state = JackTransportRolling;
}
} else {
t.loop_start = 0;
t.loop_end = 0;
t.transport_state = JackTransportRolling;
}
}
#endif
}
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