#include <sstream>
#include <glibmm/timer.h>
+#include <jack/jack.h>
+#include <jack/thread.h>
+
#include "pbd/pthread_utils.h"
#include "pbd/stacktrace.h"
#include "pbd/unknown_type.h"
#include "midi++/jack.h"
+#include "midi++/mmc.h"
#include "ardour/amp.h"
#include "ardour/audio_port.h"
#include "ardour/io.h"
#include "ardour/meter.h"
#include "ardour/midi_port.h"
+#include "ardour/process_thread.h"
#include "ardour/port.h"
#include "ardour/port_set.h"
#include "ardour/session.h"
_frame_rate = 0;
_buffer_size = 0;
_freewheeling = false;
+ _main_thread = 0;
m_meter_thread = 0;
g_atomic_int_set (&m_meter_exit, 0);
SessionEvent::create_per_thread_pool (X_("Audioengine"), 512);
MIDI::JACK_MidiPort::set_process_thread (pthread_self());
+ MIDI::MachineControl::set_sending_thread (pthread_self ());
+}
+
+typedef void (*_JackInfoShutdownCallback)(jack_status_t code, const char* reason, void *arg);
+
+static void (*on_info_shutdown)(jack_client_t*, _JackInfoShutdownCallback, void *);
+extern void jack_on_info_shutdown (jack_client_t*, _JackInfoShutdownCallback, void *) __attribute__((weak));
+
+static void check_jack_symbols () __attribute__((constructor));
+
+void check_jack_symbols ()
+{
+ /* use weak linking to see if we really have various late-model JACK function */
+ on_info_shutdown = jack_on_info_shutdown;
}
static void
_processed_frames = 0;
last_monitor_check = 0;
- jack_on_shutdown (_priv_jack, halted, this);
+ if (on_info_shutdown) {
+ jack_on_info_shutdown (_priv_jack, halted_info, this);
+ } else {
+ jack_on_shutdown (_priv_jack, halted, this);
+ }
jack_set_graph_order_callback (_priv_jack, _graph_order_callback, this);
jack_set_thread_init_callback (_priv_jack, _thread_init_callback, this);
- jack_set_process_callback (_priv_jack, _process_callback, this);
+ // jack_set_process_callback (_priv_jack, _process_callback, this);
+ jack_set_process_thread (_priv_jack, _process_thread, this);
jack_set_sample_rate_callback (_priv_jack, _sample_rate_callback, this);
jack_set_buffer_size_callback (_priv_jack, _bufsize_callback, this);
jack_set_xrun_callback (_priv_jack, _xrun_callback, this);
}
_raw_buffer_sizes[DataType::AUDIO] = blocksize * sizeof(float);
+
+ jack_port_t* midi_port = jack_port_register (_priv_jack, "m", JACK_DEFAULT_MIDI_TYPE, JackPortIsOutput, 0);
+ if (!midi_port) {
+ error << _("Cannot create temporary MIDI port to determine MIDI buffer size") << endmsg;
+ } else {
+ _raw_buffer_sizes[DataType::MIDI] = jack_midi_max_event_size (jack_port_get_buffer(midi_port, blocksize));
+ cerr << "MIDI port buffers = " << _raw_buffer_sizes[DataType::MIDI] << endl;
+ jack_port_unregister (_priv_jack, midi_port);
+ }
}
return _running ? 0 : -1;
return static_cast<AudioEngine *> (arg)->process_callback (nframes);
}
+void*
+AudioEngine::_process_thread (void *arg)
+{
+ return static_cast<AudioEngine *> (arg)->process_thread ();
+}
+
void
AudioEngine::_freewheel_callback (int onoff, void *arg)
{
}
}
+void
+AudioEngine::finish_process_cycle (int status)
+{
+ GET_PRIVATE_JACK_POINTER(_jack);
+ jack_cycle_signal (_jack, 0);
+}
+
+void*
+AudioEngine::process_thread ()
+{
+ /* JACK doesn't do this for us when we use the wait API
+ */
+
+ _thread_init_callback (0);
+
+ _main_thread = new ProcessThread;
+
+ while (1) {
+ GET_PRIVATE_JACK_POINTER_RET(_jack,0);
+ jack_nframes_t nframes = jack_cycle_wait (_jack);
+
+ if (process_callback (nframes)) {
+ cerr << "--- process\n";
+ return 0;
+ }
+
+ finish_process_cycle (0);
+ }
+
+ return 0;
+}
+
/** Method called by JACK (via _process_callback) which says that there
* is work to be done.
* @param nframes Number of frames to process.
int
AudioEngine::process_callback (nframes_t nframes)
{
- GET_PRIVATE_JACK_POINTER_RET(_jack,0)
+ GET_PRIVATE_JACK_POINTER_RET(_jack,0);
// CycleTimer ct ("AudioEngine::process");
Glib::Mutex::Lock tm (_process_lock, Glib::TRY_LOCK);
if (_freewheeling) {
/* emit the Freewheel signal and stop freewheeling in the event of trouble
- * the indirection is to pick up the return value of the signal.
*/
- if (*Freewheel (nframes)) {
+ boost::optional<int> r = Freewheel (nframes);
+ if (r.get_value_or (0)) {
jack_set_freewheel (_priv_jack, false);
}
} else {
if (_session) {
_session->process (nframes);
+
}
}
int
AudioEngine::jack_bufsize_callback (nframes_t nframes)
{
+ bool need_midi_size = true;
+ bool need_audio_size = true;
+
_buffer_size = nframes;
- _raw_buffer_sizes[DataType::AUDIO] = nframes * sizeof(float);
- cout << "FIXME: Assuming maximum MIDI buffer size " << nframes * 4 << "bytes" << endl;
- _raw_buffer_sizes[DataType::MIDI] = nframes * 4;
_usecs_per_cycle = (int) floor ((((double) nframes / frame_rate())) * 1000000.0);
last_monitor_check = 0;
boost::shared_ptr<Ports> p = ports.reader();
+ /* crude guesses, see below where we try to get the right answers.
+
+ Note that our guess for MIDI deliberatey tries to overestimate
+ by a little. It would be nicer if we could get the actual
+ size from a port, but we have to use this estimate in the
+ event that there are no MIDI ports currently. If there are
+ the value will be adjusted below.
+ */
+
+ _raw_buffer_sizes[DataType::AUDIO] = nframes * sizeof (Sample);
+ _raw_buffer_sizes[DataType::MIDI] = nframes * 4 - (nframes/2);
+
for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
+
+ if (need_audio_size && (*i)->type() == DataType::AUDIO) {
+ _raw_buffer_sizes[DataType::AUDIO] = (*i)->raw_buffer_size (nframes);
+ need_audio_size = false;
+ }
+
+
+ if (need_midi_size && (*i)->type() == DataType::MIDI) {
+ _raw_buffer_sizes[DataType::MIDI] = (*i)->raw_buffer_size (nframes);
+ need_midi_size = false;
+ }
+
(*i)->reset();
}
return jack_get_ports (_priv_jack, port_name_pattern.c_str(), type_name_pattern.c_str(), flags);
}
+void
+AudioEngine::halted_info (jack_status_t code, const char* reason, void *arg)
+{
+ /* called from jack shutdown handler */
+
+ AudioEngine* ae = static_cast<AudioEngine *> (arg);
+ bool was_running = ae->_running;
+
+ ae->stop_metering_thread ();
+
+ ae->_running = false;
+ ae->_buffer_size = 0;
+ ae->_frame_rate = 0;
+ ae->_jack = 0;
+
+ if (was_running) {
+#ifdef HAVE_JACK_ON_INFO_SHUTDOWN
+ switch (code) {
+ case JackBackendError:
+ ae->Halted(reason); /* EMIT SIGNAL */
+ break;
+ default:
+ ae->Halted(""); /* EMIT SIGNAL */
+ }
+#else
+ ae->Halted(""); /* EMIT SIGNAL */
+#endif
+ }
+}
+
void
AudioEngine::halted (void *arg)
{
+ cerr << "HALTED by JACK\n";
+
/* called from jack shutdown handler */
AudioEngine* ae = static_cast<AudioEngine *> (arg);
ae->_running = false;
ae->_buffer_size = 0;
ae->_frame_rate = 0;
+ ae->_jack = 0;
if (was_running) {
- ae->Halted(); /* EMIT SIGNAL */
+ ae->Halted(""); /* EMIT SIGNAL */
MIDI::JACK_MidiPort::JackHalted (); /* EMIT SIGNAL */
}
}
{
GET_PRIVATE_JACK_POINTER_RET (_jack,0);
const char ** ports;
- uint32_t i = 0;
+ uint32_t cnt = 0;
if ((ports = jack_get_ports (_priv_jack, NULL, type.to_jack_type(), JackPortIsPhysical|JackPortIsInput)) == 0) {
return 0;
}
- for (i = 0; ports[i]; ++i) {}
+ for (uint32_t i = 0; ports[i]; ++i) {
+ if (!strstr (ports[i], "Midi-Through")) {
+ cnt++;
+ }
+ }
+
free (ports);
- return i;
+ return cnt;
}
uint32_t
{
GET_PRIVATE_JACK_POINTER_RET (_jack,0);
const char ** ports;
- uint32_t i = 0;
-
+ uint32_t cnt = 0;
+
if ((ports = jack_get_ports (_priv_jack, NULL, type.to_jack_type(), JackPortIsPhysical|JackPortIsOutput)) == 0) {
return 0;
}
- for (i = 0; ports[i]; ++i) {}
+ for (uint32_t i = 0; ports[i]; ++i) {
+ if (!strstr (ports[i], "Midi-Through")) {
+ cnt++;
+ }
+ }
+
free (ports);
- return i;
+ return cnt;
}
void
if (ports) {
for (uint32_t i = 0; ports[i]; ++i) {
+ if (strstr (ports[i], "Midi-Through")) {
+ continue;
+ }
ins.push_back (ports[i]);
}
free (ports);
}
for (i = 0; ports[i]; ++i) {
+ if (strstr (ports[i], "Midi-Through")) {
+ continue;
+ }
outs.push_back (ports[i]);
}
free (ports);
GET_PRIVATE_JACK_POINTER_RET (_jack,"");
const char ** ports;
uint32_t i;
+ uint32_t idx;
string ret;
assert(type != DataType::NIL);
return ret;
}
- for (i = 0; i < n && ports[i]; ++i) {}
+ for (i = 0, idx = 0; idx < n && ports[i]; ++i) {
+ if (!strstr (ports[i], "Midi-Through")) {
+ ++idx;
+ }
+ }
- if (ports[i]) {
- ret = ports[i];
+ if (ports[idx]) {
+ ret = ports[idx];
}
free ((const char **) ports);
if (_session) {
_session->reset_jack_connection (_priv_jack);
- nframes_t blocksize = jack_get_buffer_size (_priv_jack);
- _session->set_block_size (blocksize);
+ jack_bufsize_callback (jack_get_buffer_size (_priv_jack));
_session->set_frame_rate (jack_get_sample_rate (_priv_jack));
-
- _raw_buffer_sizes[DataType::AUDIO] = blocksize * sizeof(float);
- cout << "FIXME: Assuming maximum MIDI buffer size " << blocksize * 4 << "bytes" << endl;
- _raw_buffer_sizes[DataType::MIDI] = blocksize * 4;
}
last_monitor_check = 0;
jack_on_shutdown (_priv_jack, halted, this);
jack_set_graph_order_callback (_priv_jack, _graph_order_callback, this);
jack_set_thread_init_callback (_priv_jack, _thread_init_callback, this);
- jack_set_process_callback (_priv_jack, _process_callback, this);
+ // jack_set_process_callback (_priv_jack, _process_callback, this);
+ jack_set_process_thread (_priv_jack, _process_thread, this);
jack_set_sample_rate_callback (_priv_jack, _sample_rate_callback, this);
jack_set_buffer_size_callback (_priv_jack, _bufsize_callback, this);
jack_set_xrun_callback (_priv_jack, _xrun_callback, this);
GET_PRIVATE_JACK_POINTER_RET (_jack,false);
return jack_is_realtime (_priv_jack);
}
+
+pthread_t
+AudioEngine::create_process_thread (boost::function<void()> f, size_t stacksize)
+{
+ GET_PRIVATE_JACK_POINTER_RET (_jack, 0);
+ pthread_t thread;
+ ThreadData* td = new ThreadData (this, f, stacksize);
+
+ if (jack_client_create_thread (_priv_jack, &thread, jack_client_real_time_priority (_priv_jack),
+ jack_is_realtime (_priv_jack), _start_process_thread, td)) {
+ return -1;
+ }
+
+ return thread;
+}
+
+void*
+AudioEngine::_start_process_thread (void* arg)
+{
+ ThreadData* td = reinterpret_cast<ThreadData*> (arg);
+ boost::function<void()> f = td->f;
+ delete td;
+
+ f ();
+
+ return 0;
+}
projects / ardour.git / blobdiff