#include <sys/time.h>
#endif
+#ifdef COMPILER_MINGW
+#include <sys/time.h>
+#endif
+
#include <glibmm.h>
#include "portaudio_backend.h"
#include "pbd/compose.h"
#include "pbd/error.h"
#include "pbd/file_utils.h"
+#include "pbd/windows_timer_utils.h"
+#include "pbd/windows_mmcss.h"
#include "ardour/filesystem_paths.h"
#include "ardour/port_manager.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
-#include "win_utils.h"
-#include "mmcss.h"
+#include "audio_utils.h"
#include "debug.h"
, _pcmio (0)
, _run (false)
, _active (false)
+ , _use_blocking_api(false)
, _freewheel (false)
+ , _freewheeling (false)
+ , _freewheel_ack (false)
+ , _reinit_thread_callback (false)
, _measure_latency (false)
- , m_cycle_count(0)
- , m_total_deviation_us(0)
- , m_max_deviation_us(0)
+ , _cycle_count(0)
+ , _total_deviation_us(0)
+ , _max_deviation_us(0)
, _input_audio_device("")
, _output_audio_device("")
, _midi_driver_option(get_standard_device_name(DeviceNone))
{
_instance_name = s_instance_name;
pthread_mutex_init (&_port_callback_mutex, 0);
-
- mmcss::initialize ();
+ pthread_mutex_init (&_freewheel_mutex, 0);
+ pthread_cond_init (&_freewheel_signal, 0);
_pcmio = new PortAudioIO ();
_midiio = new WinMMEMidiIO ();
delete _pcmio; _pcmio = 0;
delete _midiio; _midiio = 0;
- mmcss::deinitialize ();
-
pthread_mutex_destroy (&_port_callback_mutex);
+ pthread_mutex_destroy (&_freewheel_mutex);
+ pthread_cond_destroy (&_freewheel_signal);
}
/* AUDIOBACKEND API */
DEBUG_AUDIO (string_compose ("Portaudio: Unable to set_driver %1 \n", name));
return -1;
}
+ _pcmio->update_devices();
return 0;
}
+bool
+PortAudioBackend::update_devices ()
+{
+ // update midi device info?
+ return _pcmio->update_devices();
+}
+
+void
+PortAudioBackend::set_use_buffered_io (bool use_buffered_io)
+{
+ DEBUG_AUDIO (string_compose ("Portaudio: use_buffered_io %1 \n", use_buffered_io));
+
+ if (running()) {
+ return;
+ }
+
+ _use_blocking_api = use_buffered_io;
+}
+
std::string
PortAudioBackend::driver_name () const
{
std::vector<AudioBackend::DeviceStatus>
PortAudioBackend::enumerate_input_devices () const
{
- _pcmio->discover();
_input_audio_device_status.clear();
std::map<int, std::string> input_devices;
_pcmio->input_device_list(input_devices);
std::vector<AudioBackend::DeviceStatus>
PortAudioBackend::enumerate_output_devices () const
{
- _pcmio->discover();
_output_audio_device_status.clear();
std::map<int, std::string> output_devices;
_pcmio->output_device_list(output_devices);
return 0;
}
+int
+PortAudioBackend::set_systemic_midi_input_latency (std::string const device, uint32_t sl)
+{
+ MidiDeviceInfo* nfo = midi_device_info (device);
+ if (!nfo) return -1;
+ nfo->systemic_input_latency = sl;
+ return 0;
+}
+
+int
+PortAudioBackend::set_systemic_midi_output_latency (std::string const device, uint32_t sl)
+{
+ MidiDeviceInfo* nfo = midi_device_info (device);
+ if (!nfo) return -1;
+ nfo->systemic_output_latency = sl;
+ return 0;
+}
+
/* Retrieving parameters */
std::string
PortAudioBackend::device_name () const
return _systemic_audio_output_latency;
}
+uint32_t
+PortAudioBackend::systemic_midi_input_latency (std::string const device) const
+{
+ MidiDeviceInfo* nfo = midi_device_info (device);
+ if (!nfo) return 0;
+ return nfo->systemic_input_latency;
+}
+
+uint32_t
+PortAudioBackend::systemic_midi_output_latency (std::string const device) const
+{
+ MidiDeviceInfo* nfo = midi_device_info (device);
+ if (!nfo) return 0;
+ return nfo->systemic_output_latency;
+}
+
std::string
PortAudioBackend::control_app_name () const
{
return _midi_driver_option;
}
+std::vector<AudioBackend::DeviceStatus>
+PortAudioBackend::enumerate_midi_devices () const
+{
+ std::vector<AudioBackend::DeviceStatus> midi_device_status;
+ std::vector<MidiDeviceInfo*> device_info;
+
+ if (_midi_driver_option == winmme_driver_name) {
+ _midiio->update_device_info ();
+ device_info = _midiio->get_device_info ();
+ }
+
+ for (std::vector<MidiDeviceInfo*>::const_iterator i = device_info.begin();
+ i != device_info.end();
+ ++i) {
+ midi_device_status.push_back(DeviceStatus((*i)->device_name, true));
+ }
+ return midi_device_status;
+}
+
+MidiDeviceInfo*
+PortAudioBackend::midi_device_info (const std::string& device_name) const
+{
+ std::vector<MidiDeviceInfo*> dev_info;
+
+ if (_midi_driver_option == winmme_driver_name) {
+ dev_info = _midiio->get_device_info();
+
+ for (std::vector<MidiDeviceInfo*>::const_iterator i = dev_info.begin();
+ i != dev_info.end();
+ ++i) {
+ if ((*i)->device_name == device_name) {
+ return *i;
+ }
+ }
+ }
+ return 0;
+}
+
+int
+PortAudioBackend::set_midi_device_enabled (std::string const device, bool enable)
+{
+ MidiDeviceInfo* nfo = midi_device_info(device);
+ if (!nfo) return -1;
+ nfo->enable = enable;
+ return 0;
+}
+
+bool
+PortAudioBackend::midi_device_enabled (std::string const device) const
+{
+ MidiDeviceInfo* nfo = midi_device_info(device);
+ if (!nfo) return false;
+ return nfo->enable;
+}
+
/* State Control */
-static void * pthread_process (void *arg)
+static void * blocking_thread_func (void *arg)
{
PortAudioBackend *d = static_cast<PortAudioBackend *>(arg);
- d->main_process_thread ();
+ d->blocking_process_thread ();
pthread_exit (0);
return 0;
}
+bool
+PortAudioBackend::engine_halted ()
+{
+ return !_active && _run;
+}
+
+bool
+PortAudioBackend::running ()
+{
+ return _active || _run;
+}
+
int
PortAudioBackend::_start (bool for_latency_measurement)
{
- if (!_active && _run) {
- // recover from 'halted', reap threads
+ if (engine_halted()) {
stop();
}
- if (_active || _run) {
- PBD::error << _("PortAudioBackend: already active.") << endmsg;
- return -1;
+ if (running()) {
+ DEBUG_AUDIO("Already started.\n");
+ return BackendReinitializationError;
}
if (_ports.size()) {
- PBD::warning << _("PortAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
+ DEBUG_AUDIO(
+ "Recovering from unclean shutdown, port registry is not empty.\n");
_system_inputs.clear();
_system_outputs.clear();
_system_midi_in.clear();
_freewheeling = false;
_freewheel = false;
- _pcmio->pcm_setup (name_to_id(_input_audio_device), name_to_id(_output_audio_device), _samplerate, _samples_per_period);
-
- switch (_pcmio->state ()) {
- case 0: /* OK */ break;
- case -1: PBD::error << _("PortAudioBackend: failed to open device.") << endmsg; break;
- default: PBD::error << _("PortAudioBackend: initialization failed.") << endmsg; break;
- }
- if (_pcmio->state ()) {
- return -1;
+ PaErrorCode err = paNoError;
+
+ if (_use_blocking_api) {
+ DEBUG_AUDIO("Opening blocking audio stream\n");
+ err = _pcmio->open_blocking_stream(name_to_id(_input_audio_device),
+ name_to_id(_output_audio_device),
+ _samplerate,
+ _samples_per_period);
+ } else {
+ DEBUG_AUDIO("Opening callback audio stream\n");
+ err = _pcmio->open_callback_stream(name_to_id(_input_audio_device),
+ name_to_id(_output_audio_device),
+ _samplerate,
+ _samples_per_period,
+ portaudio_callback,
+ this);
+ }
+
+ // reintepret Portaudio error messages
+ switch (err) {
+ case paNoError:
+ break;
+ case paBadIODeviceCombination:
+ return DeviceConfigurationNotSupportedError;
+ case paInvalidChannelCount:
+ return ChannelCountNotSupportedError;
+ case paInvalidSampleRate:
+ return SampleRateNotSupportedError;
+ default:
+ return AudioDeviceOpenError;
}
if (_n_outputs != _pcmio->n_playback_channels ()) {
_n_outputs = _pcmio->n_playback_channels ();
- PBD::info << _("PortAudioBackend: adjusted output channel count to match device.") << endmsg;
+ PBD::info << get_error_string(OutputChannelCountNotSupportedError) << endmsg;
}
if (_n_inputs != _pcmio->n_capture_channels ()) {
_n_inputs = _pcmio->n_capture_channels ();
- PBD::info << _("PortAudioBackend: adjusted input channel count to match device.") << endmsg;
+ PBD::info << get_error_string(InputChannelCountNotSupportedError) << endmsg;
}
#if 0
if (_pcmio->samples_per_period() != _samples_per_period) {
if (_pcmio->sample_rate() != _samplerate) {
_samplerate = _pcmio->sample_rate();
engine.sample_rate_change (_samplerate);
- PBD::warning << _("PortAudioBackend: sample rate does not match.") << endmsg;
+ PBD::warning << get_error_string(SampleRateNotSupportedError) << endmsg;
}
_measure_latency = for_latency_measurement;
_midiio->start(); // triggers port discovery, callback coremidi_rediscover()
}
- m_cycle_timer.set_samplerate(_samplerate);
- m_cycle_timer.set_samples_per_cycle(_samples_per_period);
+ _cycle_timer.set_samplerate(_samplerate);
+ _cycle_timer.set_samples_per_cycle(_samples_per_period);
+
+ _dsp_calc.set_max_time_us (_cycle_timer.get_length_us());
DEBUG_MIDI ("Registering MIDI ports\n");
if (register_system_midi_ports () != 0) {
- PBD::error << _ ("PortAudioBackend: failed to register system midi ports.")
- << endmsg;
+ DEBUG_PORTS("Failed to register system midi ports.\n")
_run = false;
- return -1;
+ return PortRegistrationError;
}
DEBUG_AUDIO ("Registering Audio ports\n");
if (register_system_audio_ports()) {
- PBD::error << _("PortAudioBackend: failed to register system audio ports.") << endmsg;
+ DEBUG_PORTS("Failed to register system audio ports.\n");
_run = false;
- return -1;
+ return PortRegistrationError;
}
engine.sample_rate_change (_samplerate);
engine.buffer_size_change (_samples_per_period);
if (engine.reestablish_ports ()) {
- PBD::error << _("PortAudioBackend: Could not re-establish ports.") << endmsg;
+ DEBUG_PORTS("Could not re-establish ports.\n");
_run = false;
- return -1;
+ return PortReconnectError;
}
engine.reconnect_ports ();
_run = true;
_port_change_flag = false;
+ if (_use_blocking_api) {
+ if (!start_blocking_process_thread()) {
+ return ProcessThreadStartError;
+ }
+ } else {
+ if (_pcmio->start_stream() != paNoError) {
+ DEBUG_AUDIO("Unable to start stream\n");
+ return AudioDeviceOpenError;
+ }
+
+ if (!start_freewheel_process_thread()) {
+ DEBUG_AUDIO("Unable to start freewheel thread\n");
+ stop();
+ return ProcessThreadStartError;
+ }
+ }
+
+ return NoError;
+}
+
+int
+PortAudioBackend::portaudio_callback(const void* input,
+ void* output,
+ unsigned long frame_count,
+ const PaStreamCallbackTimeInfo* time_info,
+ PaStreamCallbackFlags status_flags,
+ void* user_data)
+{
+ PortAudioBackend* pa_backend = static_cast<PortAudioBackend*>(user_data);
+
+ if (!pa_backend->process_callback((const float*)input,
+ (float*)output,
+ frame_count,
+ time_info,
+ status_flags)) {
+ return paAbort;
+ }
+
+ return paContinue;
+}
+
+bool
+PortAudioBackend::process_callback(const float* input,
+ float* output,
+ uint32_t frame_count,
+ const PaStreamCallbackTimeInfo* timeInfo,
+ PaStreamCallbackFlags statusFlags)
+{
+ _active = true;
+
+ _dsp_calc.set_start_timestamp_us (PBD::get_microseconds());
+
+ if (_run && _freewheel && !_freewheel_ack) {
+ // acknowledge freewheeling; hand-over thread ID
+ pthread_mutex_lock (&_freewheel_mutex);
+ if (_freewheel) {
+ DEBUG_AUDIO("Setting _freewheel_ack = true;\n");
+ _freewheel_ack = true;
+ }
+ DEBUG_AUDIO("Signalling freewheel thread\n");
+ pthread_cond_signal (&_freewheel_signal);
+ pthread_mutex_unlock (&_freewheel_mutex);
+ }
+
+ if (statusFlags & paInputUnderflow ||
+ statusFlags & paInputOverflow ||
+ statusFlags & paOutputUnderflow ||
+ statusFlags & paOutputOverflow ) {
+ DEBUG_AUDIO("PortAudio: Xrun\n");
+ engine.Xrun();
+ return true;
+ }
+
+ if (!_run || _freewheel) {
+ memset(output, 0, frame_count * sizeof(float) * _system_outputs.size());
+ return true;
+ }
+
+ bool in_main_thread = pthread_equal(_main_thread, pthread_self());
+
+ if (_reinit_thread_callback || !in_main_thread) {
+ _reinit_thread_callback = false;
+ _main_thread = pthread_self();
+ AudioEngine::thread_init_callback (this);
+ }
+
+ process_port_connection_changes();
+
+ return blocking_process_main (input, output);
+}
+
+bool
+PortAudioBackend::start_blocking_process_thread ()
+{
if (_realtime_pthread_create (SCHED_FIFO, -20, 100000,
- &_main_thread, pthread_process, this))
+ &_main_blocking_thread, blocking_thread_func, this))
{
- if (pthread_create (&_main_thread, NULL, pthread_process, this))
+ if (pthread_create (&_main_blocking_thread, NULL, blocking_thread_func, this))
{
- PBD::error << _("PortAudioBackend: failed to create process thread.") << endmsg;
+ DEBUG_AUDIO("Failed to create main audio thread\n");
_run = false;
- return -1;
+ return false;
} else {
- PBD::warning << _("PortAudioBackend: cannot acquire realtime permissions.") << endmsg;
+ PBD::warning << get_error_string(AquireRealtimePermissionError) << endmsg;
}
}
while (!_active && --timeout > 0) { Glib::usleep (1000); }
if (timeout == 0 || !_active) {
- PBD::error << _("PortAudioBackend: failed to start.") << endmsg;
- _pcmio->pcm_stop();
+ DEBUG_AUDIO("Failed to start main audio thread\n");
+ _pcmio->close_stream();
_run = false;
unregister_ports();
_active = false;
- return -1;
+ return false;
}
+ return true;
+}
- return 0;
+bool
+PortAudioBackend::stop_blocking_process_thread ()
+{
+ void *status;
+
+ if (pthread_join (_main_blocking_thread, &status)) {
+ DEBUG_AUDIO("Failed to stop main audio thread\n");
+ return false;
+ }
+
+ return true;
}
int
PortAudioBackend::stop ()
{
- void *status;
if (!_run) {
return 0;
}
+ _midiio->stop();
+
_run = false;
- if (pthread_join (_main_thread, &status)) {
- PBD::error << _("PortAudioBackend: failed to terminate.") << endmsg;
- return -1;
- }
+ if (_use_blocking_api) {
+ if (!stop_blocking_process_thread()) {
+ return -1;
+ }
+ } else {
+ _pcmio->close_stream();
+ _active = false;
+
+ if (!stop_freewheel_process_thread()) {
+ return -1;
+ }
+ }
unregister_ports();
return (_active == false) ? 0 : -1;
}
+static void* freewheel_thread(void* arg)
+{
+ PortAudioBackend* d = static_cast<PortAudioBackend*>(arg);
+ d->freewheel_process_thread ();
+ pthread_exit (0);
+ return 0;
+}
+
+bool
+PortAudioBackend::start_freewheel_process_thread ()
+{
+ if (pthread_create(&_pthread_freewheel, NULL, freewheel_thread, this)) {
+ DEBUG_AUDIO("Failed to create main audio thread\n");
+ return false;
+ }
+
+ int timeout = 5000;
+ while (!_freewheel_thread_active && --timeout > 0) { Glib::usleep (1000); }
+
+ if (timeout == 0 || !_freewheel_thread_active) {
+ DEBUG_AUDIO("Failed to start freewheel thread\n");
+ return false;
+ }
+ return true;
+}
+
+bool
+PortAudioBackend::stop_freewheel_process_thread ()
+{
+ void *status;
+
+ if (!_freewheel_thread_active) {
+ return true;
+ }
+
+ DEBUG_AUDIO("Signaling freewheel thread to stop\n");
+
+ pthread_mutex_lock (&_freewheel_mutex);
+ pthread_cond_signal (&_freewheel_signal);
+ pthread_mutex_unlock (&_freewheel_mutex);
+
+ if (pthread_join (_pthread_freewheel, &status) != 0) {
+ DEBUG_AUDIO("Failed to stop freewheel thread\n");
+ return false;
+ }
+
+ return true;
+}
+
+void*
+PortAudioBackend::freewheel_process_thread()
+{
+ _freewheel_thread_active = true;
+
+ bool first_run = false;
+
+ pthread_mutex_lock (&_freewheel_mutex);
+
+ while(_run) {
+ // check if we should run,
+ if (_freewheeling != _freewheel) {
+ if (!_freewheeling) {
+ DEBUG_AUDIO("Leaving freewheel\n");
+ _freewheel = false; // first mark as disabled
+ _reinit_thread_callback = true; // hand over _main_thread
+ _freewheel_ack = false; // prepare next handshake
+ _midiio->set_enabled(true);
+ engine.freewheel_callback (_freewheeling);
+ } else {
+ first_run = true;
+ _freewheel = true;
+ }
+ }
+
+ if (!_freewheel || !_freewheel_ack) {
+ // wait for a change, we use a timed wait to
+ // terminate early in case some error sets _run = 0
+ struct timeval tv;
+ struct timespec ts;
+ gettimeofday (&tv, NULL);
+ ts.tv_sec = tv.tv_sec + 3;
+ ts.tv_nsec = 0;
+ DEBUG_AUDIO("Waiting for freewheel change\n");
+ pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
+ continue;
+ }
+
+ if (first_run) {
+ // tell the engine we're ready to GO.
+ engine.freewheel_callback (_freewheeling);
+ first_run = false;
+ _main_thread = pthread_self();
+ AudioEngine::thread_init_callback (this);
+ _midiio->set_enabled(false);
+ }
+
+ if (!blocking_process_freewheel()) {
+ break;
+ }
+
+ process_port_connection_changes();
+ }
+
+ pthread_mutex_unlock (&_freewheel_mutex);
+
+ _freewheel_thread_active = false;
+
+ if (_run) {
+ // engine.process_callback() returner error
+ engine.halted_callback("CoreAudio Freehweeling aborted.");
+ }
+ return 0;
+}
+
int
PortAudioBackend::freewheel (bool onoff)
{
return 0;
}
_freewheeling = onoff;
+
+ if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
+ pthread_cond_signal (&_freewheel_signal);
+ pthread_mutex_unlock (&_freewheel_mutex);
+ }
return 0;
}
PortAudioBackend::raw_buffer_size (DataType t)
{
switch (t) {
- case DataType::AUDIO:
- return _samples_per_period * sizeof(Sample);
- case DataType::MIDI:
- return _max_buffer_size; // XXX not really limited
+ case DataType::AUDIO:
+ return _samples_per_period * sizeof(Sample);
+ case DataType::MIDI:
+ return _max_buffer_size; // XXX not really limited
}
return 0;
}
if (!_active || !_run || _freewheeling || _freewheel) {
return 0;
}
- if (!m_cycle_timer.valid()) {
+ if (!_cycle_timer.valid()) {
return 0;
}
- return m_cycle_timer.samples_since_cycle_start (utils::get_microseconds());
+ return _cycle_timer.samples_since_cycle_start (PBD::get_microseconds());
}
int
return device_id;
}
+bool
+PortAudioBackend::set_mmcss_pro_audio (HANDLE* task_handle)
+{
+ bool mmcss_success = PBD::MMCSS::set_thread_characteristics ("Pro Audio", task_handle);
+
+ if (!mmcss_success) {
+ PBD::warning << get_error_string(SettingAudioThreadPriorityError) << endmsg;
+ return false;
+ } else {
+ DEBUG_THREADS("Thread characteristics set to Pro Audio\n");
+ }
+
+ bool mmcss_priority =
+ PBD::MMCSS::set_thread_priority(*task_handle, PBD::MMCSS::AVRT_PRIORITY_NORMAL);
+
+ if (!mmcss_priority) {
+ PBD::warning << get_error_string(SettingAudioThreadPriorityError) << endmsg;
+ return false;
+ } else {
+ DEBUG_THREADS("Thread priority set to AVRT_PRIORITY_NORMAL\n");
+ }
+
+ return true;
+}
+
+bool
+PortAudioBackend::reset_mmcss (HANDLE task_handle)
+{
+ if (!PBD::MMCSS::revert_thread_characteristics(task_handle)) {
+ DEBUG_THREADS("Unable to reset process thread characteristics\n");
+ return false;
+ }
+ return true;
+}
+
void *
PortAudioBackend::portaudio_process_thread (void *arg)
{
#ifdef USE_MMCSS_THREAD_PRIORITIES
HANDLE task_handle;
-
- mmcss::set_thread_characteristics ("Pro Audio", &task_handle);
- mmcss::set_thread_priority (task_handle, mmcss::AVRT_PRIORITY_NORMAL);
+ bool mmcss_success = set_mmcss_pro_audio (&task_handle);
#endif
DWORD tid = GetCurrentThreadId ();
f ();
#ifdef USE_MMCSS_THREAD_PRIORITIES
- mmcss::revert_thread_characteristics (task_handle);
+ if (mmcss_success) {
+ reset_mmcss (task_handle);
+ }
#endif
return 0;
pthread_attr_init (&attr);
pthread_attr_setstacksize (&attr, stacksize);
if (pthread_create (&thread_id, &attr, portaudio_process_thread, td)) {
- PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
+ DEBUG_AUDIO("Cannot create process thread.");
pthread_attr_destroy (&attr);
return -1;
}
{
void *status;
if (pthread_join (*i, &status)) {
- PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
+ DEBUG_AUDIO("Cannot terminate process thread.");
rv -= 1;
}
}
bool
PortAudioBackend::in_process_thread ()
{
- if (pthread_equal (_main_thread, pthread_self()) != 0) {
- return true;
+ if (_use_blocking_api) {
+ if (pthread_equal(_main_blocking_thread, pthread_self()) != 0) {
+ return true;
+ }
+ } else {
+ if (pthread_equal(_main_thread, pthread_self()) != 0) {
+ return true;
+ }
}
-
for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
{
if (pthread_equal (*i, pthread_self ()) != 0) {
PortAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
{
if (!valid_port (port)) {
- PBD::error << _("PortAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
+ DEBUG_PORTS("set_port_name: Invalid Port(s)\n");
return -1;
}
return static_cast<PamPort*>(port)->set_name (_instance_name + ":" + name);
PortAudioBackend::get_port_name (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
- PBD::error << _("PortAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
+ DEBUG_PORTS("get_port_name: Invalid Port(s)\n");
return std::string ();
}
return static_cast<PamPort*>(port)->name ();
std::string& type) const
{
if (!valid_port (port)) {
- PBD::error << _ ("PortAudioBackend::get_port_name: Invalid Port(s)")
- << endmsg;
+ DEBUG_PORTS("get_port_name: Invalid Port(s)\n");
return -1;
}
return -1;
}
+int
+PortAudioBackend::set_port_property (PortHandle port,
+ const std::string& key,
+ const std::string& value,
+ const std::string& type)
+{
+ if (!valid_port (port)) {
+ DEBUG_PORTS("get_port_name: Invalid Port(s)\n");
+ return -1;
+ }
+
+ if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
+ static_cast<PamPort*>(port)->set_pretty_name (value);
+ return 0;
+ }
+ return -1;
+}
+
PortEngine::PortHandle
PortAudioBackend::get_port_by_name (const std::string& name) const
{
{
assert(name.size ());
if (find_port (name)) {
- PBD::error << _("PortAudioBackend::register_port: Port already exists:")
- << " (" << name << ")" << endmsg;
+ DEBUG_PORTS(
+ string_compose("register_port: Port already exists: (%1)\n", name));
return 0;
}
PamPort* port = NULL;
switch (type) {
- case DataType::AUDIO:
- port = new PortAudioPort (*this, name, flags);
- break;
- case DataType::MIDI:
- port = new PortMidiPort (*this, name, flags);
- break;
- default:
- PBD::error << _("PortAudioBackend::register_port: Invalid Data Type.") << endmsg;
- return 0;
+ case DataType::AUDIO:
+ port = new PortAudioPort(*this, name, flags);
+ break;
+ case DataType::MIDI:
+ port = new PortMidiPort(*this, name, flags);
+ break;
+ default:
+ DEBUG_PORTS("register_port: Invalid Data Type.\n");
+ return 0;
}
_ports.push_back (port);
PamPort* port = static_cast<PamPort*>(port_handle);
std::vector<PamPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<PamPort*>(port_handle));
if (i == _ports.end ()) {
- PBD::error << _("PortAudioBackend::unregister_port: Failed to find port") << endmsg;
+ DEBUG_PORTS("unregister_port: Failed to find port\n");
return;
}
disconnect_all(port_handle);
const uint32_t a_ins = _n_inputs;
const uint32_t a_out = _n_outputs;
- // XXX PA reported stream latencies don't match measurements
- const uint32_t portaudio_reported_input_latency = _samples_per_period ; // _pcmio->capture_latency();
- const uint32_t portaudio_reported_output_latency = /* _samples_per_period + */ _pcmio->playback_latency();
+ uint32_t capture_latency = 0;
+ uint32_t playback_latency = 0;
+
+ // guard against erroneous latency values
+ if (_pcmio->capture_latency() > _samples_per_period) {
+ capture_latency = _pcmio->capture_latency() - _samples_per_period;
+ }
+ if (_pcmio->playback_latency() > _samples_per_period) {
+ playback_latency = _pcmio->playback_latency() - _samples_per_period;
+ }
/* audio ports */
- lr.min = lr.max = portaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
+ lr.min = lr.max = capture_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
for (uint32_t i = 0; i < a_ins; ++i) {
char tmp[64];
snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
_system_inputs.push_back (audio_port);
}
- lr.min = lr.max = portaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
+ lr.min = lr.max = playback_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
for (uint32_t i = 0; i < a_out; ++i) {
char tmp[64];
snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
for (std::vector<WinMMEMidiInputDevice*>::const_iterator i = inputs.begin ();
i != inputs.end ();
++i) {
- std::string port_name = "system_midi:" + (*i)->name() + " capture";
+ std::string port_name = "system:midi_capture_" + (*i)->name();
PortHandle p =
add_port (port_name,
DataType::MIDI,
static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
if (!p) return -1;
+
+ MidiDeviceInfo* info = _midiio->get_device_info((*i)->name());
+ if (info) { // assert?
+ lr.min = lr.max = _samples_per_period + info->systemic_input_latency;
+ }
set_latency_range (p, false, lr);
+
PortMidiPort* midi_port = static_cast<PortMidiPort*>(p);
midi_port->set_pretty_name ((*i)->name());
_system_midi_in.push_back (midi_port);
for (std::vector<WinMMEMidiOutputDevice*>::const_iterator i = outputs.begin ();
i != outputs.end ();
++i) {
- std::string port_name = "system_midi:" + (*i)->name() + " playback";
+ std::string port_name = "system:midi_playback_" + (*i)->name();
PortHandle p =
add_port (port_name,
DataType::MIDI,
static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
if (!p) return -1;
+
+ MidiDeviceInfo* info = _midiio->get_device_info((*i)->name());
+ if (info) { // assert?
+ lr.min = lr.max = _samples_per_period + info->systemic_output_latency;
+ }
set_latency_range (p, false, lr);
+
PortMidiPort* midi_port = static_cast<PortMidiPort*>(p);
midi_port->set_n_periods(2);
midi_port->set_pretty_name ((*i)->name());
PamPort* dst_port = find_port (dst);
if (!src_port) {
- PBD::error << _("PortAudioBackend::connect: Invalid Source port:")
- << " (" << src <<")" << endmsg;
+ DEBUG_PORTS(string_compose("connect: Invalid Source port: (%1)\n", src));
return -1;
}
if (!dst_port) {
- PBD::error << _("PortAudioBackend::connect: Invalid Destination port:")
- << " (" << dst <<")" << endmsg;
+ DEBUG_PORTS(string_compose("connect: Invalid Destination port: (%1)\n", dst));
return -1;
}
return src_port->connect (dst_port);
PamPort* dst_port = find_port (dst);
if (!src_port || !dst_port) {
- PBD::error << _("PortAudioBackend::disconnect: Invalid Port(s)") << endmsg;
+ DEBUG_PORTS("disconnect: Invalid Port(s)\n");
return -1;
}
return src_port->disconnect (dst_port);
{
PamPort* dst_port = find_port (dst);
if (!valid_port (src)) {
- PBD::error << _("PortAudioBackend::connect: Invalid Source Port Handle") << endmsg;
+ DEBUG_PORTS("connect: Invalid Source Port Handle\n");
return -1;
}
if (!dst_port) {
- PBD::error << _("PortAudioBackend::connect: Invalid Destination Port")
- << " (" << dst << ")" << endmsg;
+ DEBUG_PORTS(string_compose("connect: Invalid Destination Port (%1)\n", dst));
return -1;
}
return static_cast<PamPort*>(src)->connect (dst_port);
{
PamPort* dst_port = find_port (dst);
if (!valid_port (src) || !dst_port) {
- PBD::error << _("PortAudioBackend::disconnect: Invalid Port(s)") << endmsg;
+ DEBUG_PORTS("disconnect: Invalid Port(s)\n");
return -1;
}
return static_cast<PamPort*>(src)->disconnect (dst_port);
PortAudioBackend::disconnect_all (PortEngine::PortHandle port)
{
if (!valid_port (port)) {
- PBD::error << _("PortAudioBackend::disconnect_all: Invalid Port") << endmsg;
+ DEBUG_PORTS("disconnect_all: Invalid Port\n");
return -1;
}
static_cast<PamPort*>(port)->disconnect_all ();
PortAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
{
if (!valid_port (port)) {
- PBD::error << _("PortAudioBackend::disconnect_all: Invalid Port") << endmsg;
+ DEBUG_PORTS("disconnect_all: Invalid Port\n");
return false;
}
return static_cast<PamPort*>(port)->is_connected ();
{
PamPort* dst_port = find_port (dst);
if (!valid_port (src) || !dst_port) {
- PBD::error << _("PortAudioBackend::connected_to: Invalid Port") << endmsg;
+ DEBUG_PORTS("connected_to: Invalid Port\n");
return false;
}
return static_cast<PamPort*>(src)->is_connected (dst_port);
PortAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
{
if (!valid_port (port)) {
- PBD::error << _("PortAudioBackend::physically_connected: Invalid Port") << endmsg;
+ DEBUG_PORTS("physically_connected: Invalid Port\n");
return false;
}
return static_cast<PamPort*>(port)->is_physically_connected ();
PortAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
{
if (!valid_port (port)) {
- PBD::error << _("PortAudioBackend::get_connections: Invalid Port") << endmsg;
+ DEBUG_PORTS("get_connections: Invalid Port\n");
return -1;
}
PortAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
{
if (!valid_port (port)) {
- PBD::error << _("PamPort::set_latency_range (): invalid port.") << endmsg;
+ DEBUG_PORTS("PamPort::set_latency_range (): invalid port.\n");
}
static_cast<PamPort*>(port)->set_latency_range (latency_range, for_playback);
}
{
LatencyRange r;
if (!valid_port (port)) {
- PBD::error << _("PamPort::get_latency_range (): invalid port.") << endmsg;
+ DEBUG_PORTS("PamPort::get_latency_range (): invalid port.\n");
r.min = 0;
r.max = 0;
return r;
PortAudioBackend::port_is_physical (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
- PBD::error << _("PamPort::port_is_physical (): invalid port.") << endmsg;
+ DEBUG_PORTS("PamPort::port_is_physical (): invalid port.\n");
return false;
}
return static_cast<PamPort*>(port)->is_physical ();
PamPort* port = _ports[i];
if (port->is_output () && port->is_physical ()) {
switch (port->type ()) {
- case DataType::AUDIO: ++n_audio; break;
- case DataType::MIDI: ++n_midi; break;
- default: break;
+ case DataType::AUDIO:
+ ++n_audio;
+ break;
+ case DataType::MIDI:
+ ++n_midi;
+ break;
+ default:
+ break;
}
}
}
PamPort* port = _ports[i];
if (port->is_input () && port->is_physical ()) {
switch (port->type ()) {
- case DataType::AUDIO: ++n_audio; break;
- case DataType::MIDI: ++n_midi; break;
- default: break;
+ case DataType::AUDIO:
+ ++n_audio;
+ break;
+ case DataType::MIDI:
+ ++n_midi;
+ break;
+ default:
+ break;
}
}
}
void *
-PortAudioBackend::main_process_thread ()
+PortAudioBackend::blocking_process_thread ()
{
AudioEngine::thread_init_callback (this);
_active = true;
_processed_samples = 0;
- uint64_t clock1, clock2;
- int64_t min_elapsed_us = 1000000;
- int64_t max_elapsed_us = 0;
- const int64_t nomial_time = 1e6 * _samples_per_period / _samplerate;
- // const int64_t nomial_time = m_cycle_timer.get_length_us();
-
manager.registration_callback();
manager.graph_order_callback();
- if (_pcmio->pcm_start()) {
- _pcmio->pcm_stop ();
+ if (_pcmio->start_stream() != paNoError) {
+ _pcmio->close_stream ();
_active = false;
- engine.halted_callback("PortAudio I/O error.");
+ engine.halted_callback(get_error_string(AudioDeviceIOError).c_str());
}
#ifdef USE_MMCSS_THREAD_PRIORITIES
HANDLE task_handle;
-
- mmcss::set_thread_characteristics ("Pro Audio", &task_handle);
- mmcss::set_thread_priority (task_handle, mmcss::AVRT_PRIORITY_NORMAL);
+ bool mmcss_success = set_mmcss_pro_audio (&task_handle);
#endif
DWORD tid = GetCurrentThreadId ();
if (!_freewheel) {
switch (_pcmio->next_cycle (_samples_per_period)) {
- case 0: // OK
- break;
- case 1:
- DEBUG_AUDIO ("PortAudio: Xrun\n");
- engine.Xrun ();
- break;
- default:
- PBD::error << _("PortAudioBackend: I/O error. Audio Process Terminated.") << endmsg;
- break;
+ case 0: // OK
+ break;
+ case 1:
+ DEBUG_AUDIO("PortAudio: Xrun\n");
+ engine.Xrun();
+ break;
+ default:
+ PBD::error << get_error_string(AudioDeviceIOError) << endmsg;
+ break;
}
- uint32_t i = 0;
- clock1 = utils::get_microseconds ();
-
- /* get audio */
- i = 0;
- for (std::vector<PamPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
- _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(_samples_per_period)), _samples_per_period);
+ if (!blocking_process_main(_pcmio->get_capture_buffer(),
+ _pcmio->get_playback_buffer())) {
+ return 0;
}
+ } else {
- /* de-queue incoming midi*/
- i=0;
- for (std::vector<PamPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
- PortMidiBuffer* mbuf = static_cast<PortMidiBuffer*>((*it)->get_buffer(0));
- mbuf->clear();
- uint64_t timestamp;
- pframes_t sample_offset;
- uint8_t data[256];
- size_t size = sizeof(data);
- while (_midiio->dequeue_input_event (i,
- m_cycle_timer.get_start (),
- m_cycle_timer.get_next_start (),
- timestamp,
- data,
- size)) {
- sample_offset = m_cycle_timer.samples_since_cycle_start (timestamp);
- midi_event_put (mbuf, sample_offset, data, size);
- DEBUG_MIDI (string_compose ("Dequeuing incoming MIDI data for device: %1 "
- "sample_offset: %2 timestamp: %3, size: %4\n",
- _midiio->get_inputs ()[i]->name (),
- sample_offset,
- timestamp,
- size));
- size = sizeof(data);
- }
+ if (!blocking_process_freewheel()) {
+ return 0;
}
+ }
- /* clear output buffers */
- for (std::vector<PamPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
- memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
- }
+ process_port_connection_changes();
+ }
+ _pcmio->close_stream();
+ _active = false;
+ if (_run) {
+ engine.halted_callback(get_error_string(AudioDeviceIOError).c_str());
+ }
- m_last_cycle_start = m_cycle_timer.get_start ();
- m_cycle_timer.reset_start(utils::get_microseconds());
- m_cycle_count++;
-
- uint64_t cycle_diff_us = (m_cycle_timer.get_start () - m_last_cycle_start);
- int64_t deviation_us = (cycle_diff_us - m_cycle_timer.get_length_us());
- m_total_deviation_us += ::llabs(deviation_us);
- m_max_deviation_us =
- std::max (m_max_deviation_us, (uint64_t)::llabs (deviation_us));
-
- if ((m_cycle_count % 1000) == 0) {
- uint64_t mean_deviation_us = m_total_deviation_us / m_cycle_count;
- DEBUG_TIMING (
- string_compose ("Mean avg cycle deviation: %1(ms), max %2(ms)\n",
- mean_deviation_us * 1e-3,
- m_max_deviation_us * 1e-3));
- }
+#ifdef USE_MMCSS_THREAD_PRIORITIES
+ if (mmcss_success) {
+ reset_mmcss(task_handle);
+ }
+#endif
- if (::llabs(deviation_us) > m_cycle_timer.get_length_us()) {
- DEBUG_TIMING (string_compose (
- "time between process(ms): %1, Est(ms): %2, Dev(ms): %3\n",
- cycle_diff_us * 1e-3,
- m_cycle_timer.get_length_us () * 1e-3,
- deviation_us * 1e-3));
- }
+ return 0;
+}
- /* call engine process callback */
- if (engine.process_callback (_samples_per_period)) {
- _pcmio->pcm_stop ();
- _active = false;
- return 0;
- }
- /* mixdown midi */
- for (std::vector<PamPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
- static_cast<PortMidiPort*>(*it)->next_period();
- }
- /* queue outgoing midi */
- i = 0;
- for (std::vector<PamPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
- const PortMidiBuffer* src = static_cast<const PortMidiPort*>(*it)->const_buffer();
-
- for (PortMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
- uint64_t timestamp =
- m_cycle_timer.timestamp_from_sample_offset ((*mit)->timestamp ());
- DEBUG_MIDI (
- string_compose ("Queuing outgoing MIDI data for device: "
- "%1 sample_offset: %2 timestamp: %3, size: %4\n",
- _midiio->get_outputs ()[i]->name (),
- (*mit)->timestamp (),
- timestamp,
- (*mit)->size ()));
- _midiio->enqueue_output_event (
- i, timestamp, (*mit)->data (), (*mit)->size ());
- }
- }
+bool
+PortAudioBackend::blocking_process_main(const float* interleaved_input_data,
+ float* interleaved_output_data)
+{
+ uint32_t i = 0;
+ int64_t min_elapsed_us = 1000000;
+ int64_t max_elapsed_us = 0;
- /* write back audio */
- i = 0;
- for (std::vector<PamPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
- _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (_samples_per_period), _samples_per_period);
- }
+ _dsp_calc.set_start_timestamp_us (PBD::get_microseconds());
- _processed_samples += _samples_per_period;
+ i = 0;
+ /* Copy input audio data into input port buffers */
+ for (std::vector<PamPort*>::const_iterator it = _system_inputs.begin();
+ it != _system_inputs.end();
+ ++it, ++i) {
+ assert(_system_inputs.size() == _pcmio->n_capture_channels());
+ uint32_t channels = _system_inputs.size();
+ float* input_port_buffer = (float*)(*it)->get_buffer(_samples_per_period);
+ deinterleave_audio_data(
+ interleaved_input_data, input_port_buffer, _samples_per_period, i, channels);
+ }
- /* calculate DSP load */
- clock2 = utils::get_microseconds ();
- const int64_t elapsed_time = clock2 - clock1;
- _dsp_load = elapsed_time / (float) nomial_time;
+ process_incoming_midi ();
- max_elapsed_us = std::max (elapsed_time, max_elapsed_us);
- min_elapsed_us = std::min (elapsed_time, min_elapsed_us);
- if ((m_cycle_count % 1000) == 0) {
- DEBUG_TIMING (
- string_compose ("Elapsed process time(usecs) max: %1, min: %2\n",
- max_elapsed_us,
- min_elapsed_us));
- }
+ /* clear output buffers */
+ for (std::vector<PamPort*>::const_iterator it = _system_outputs.begin();
+ it != _system_outputs.end();
+ ++it) {
+ memset((*it)->get_buffer(_samples_per_period),
+ 0,
+ _samples_per_period * sizeof(Sample));
+ }
- } else {
- // Freewheelin'
+ _last_cycle_start = _cycle_timer.get_start();
+ _cycle_timer.reset_start(PBD::get_microseconds());
+ _cycle_count++;
- // zero audio input buffers
- for (std::vector<PamPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
- memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
- }
+ uint64_t cycle_diff_us = (_cycle_timer.get_start() - _last_cycle_start);
+ int64_t deviation_us = (cycle_diff_us - _cycle_timer.get_length_us());
+ _total_deviation_us += ::llabs(deviation_us);
+ _max_deviation_us =
+ std::max(_max_deviation_us, (uint64_t)::llabs(deviation_us));
- clock1 = utils::get_microseconds ();
+ if ((_cycle_count % 1000) == 0) {
+ uint64_t mean_deviation_us = _total_deviation_us / _cycle_count;
+ DEBUG_TIMING(string_compose("Mean avg cycle deviation: %1(ms), max %2(ms)\n",
+ mean_deviation_us * 1e-3,
+ _max_deviation_us * 1e-3));
+ }
- // TODO clear midi or stop midi recv when entering fwheelin'
+ if (::llabs(deviation_us) > _cycle_timer.get_length_us()) {
+ DEBUG_TIMING(
+ string_compose("time between process(ms): %1, Est(ms): %2, Dev(ms): %3\n",
+ cycle_diff_us * 1e-3,
+ _cycle_timer.get_length_us() * 1e-3,
+ deviation_us * 1e-3));
+ }
- if (engine.process_callback (_samples_per_period)) {
- _pcmio->pcm_stop ();
- _active = false;
- return 0;
- }
+ /* call engine process callback */
+ if (engine.process_callback(_samples_per_period)) {
+ _pcmio->close_stream();
+ _active = false;
+ return false;
+ }
- // drop all outgoing MIDI messages
- for (std::vector<PamPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
- void *bptr = (*it)->get_buffer(0);
- midi_clear(bptr);
- }
+ process_outgoing_midi ();
+
+ /* write back audio */
+ i = 0;
+ for (std::vector<PamPort*>::const_iterator it = _system_outputs.begin();
+ it != _system_outputs.end();
+ ++it, ++i) {
+ assert(_system_outputs.size() == _pcmio->n_playback_channels());
+ const uint32_t channels = _system_outputs.size();
+ float* output_port_buffer = (float*)(*it)->get_buffer(_samples_per_period);
+ interleave_audio_data(
+ output_port_buffer, interleaved_output_data, _samples_per_period, i, channels);
+ }
+
+ _processed_samples += _samples_per_period;
+
+ /* calculate DSP load */
+ _dsp_calc.set_stop_timestamp_us (PBD::get_microseconds());
+ _dsp_load = _dsp_calc.get_dsp_load();
+
+ DEBUG_TIMING(string_compose("DSP Load: %1\n", _dsp_load));
- _dsp_load = 1.0;
- Glib::usleep (100); // don't hog cpu
+ max_elapsed_us = std::max(_dsp_calc.elapsed_time_us(), max_elapsed_us);
+ min_elapsed_us = std::min(_dsp_calc.elapsed_time_us(), min_elapsed_us);
+ if ((_cycle_count % 1000) == 0) {
+ DEBUG_TIMING(string_compose("Elapsed process time(usecs) max: %1, min: %2\n",
+ max_elapsed_us,
+ min_elapsed_us));
+ }
+
+ return true;
+}
+
+bool
+PortAudioBackend::blocking_process_freewheel()
+{
+ // zero audio input buffers
+ for (std::vector<PamPort*>::const_iterator it = _system_inputs.begin();
+ it != _system_inputs.end();
+ ++it) {
+ memset((*it)->get_buffer(_samples_per_period),
+ 0,
+ _samples_per_period * sizeof(Sample));
+ }
+
+ // TODO clear midi or stop midi recv when entering fwheelin'
+
+ if (engine.process_callback(_samples_per_period)) {
+ _pcmio->close_stream();
+ _active = false;
+ return false;
+ }
+
+ // drop all outgoing MIDI messages
+ for (std::vector<PamPort*>::const_iterator it = _system_midi_out.begin();
+ it != _system_midi_out.end();
+ ++it) {
+ void* bptr = (*it)->get_buffer(0);
+ midi_clear(bptr);
+ }
+
+ _dsp_load = 1.0;
+ Glib::usleep(100); // don't hog cpu
+ return true;
+}
+
+void
+PortAudioBackend::process_incoming_midi ()
+{
+ uint32_t i = 0;
+ for (std::vector<PamPort*>::const_iterator it = _system_midi_in.begin();
+ it != _system_midi_in.end();
+ ++it, ++i) {
+ PortMidiBuffer* mbuf = static_cast<PortMidiBuffer*>((*it)->get_buffer(0));
+ mbuf->clear();
+ uint64_t timestamp;
+ pframes_t sample_offset;
+ uint8_t data[256];
+ size_t size = sizeof(data);
+ while (_midiio->dequeue_input_event(i,
+ _cycle_timer.get_start(),
+ _cycle_timer.get_next_start(),
+ timestamp,
+ data,
+ size)) {
+ sample_offset = _cycle_timer.samples_since_cycle_start(timestamp);
+ midi_event_put(mbuf, sample_offset, data, size);
+ DEBUG_MIDI(string_compose("Dequeuing incoming MIDI data for device: %1 "
+ "sample_offset: %2 timestamp: %3, size: %4\n",
+ _midiio->get_inputs()[i]->name(),
+ sample_offset,
+ timestamp,
+ size));
+ size = sizeof(data);
}
+ }
+}
- bool connections_changed = false;
- bool ports_changed = false;
- if (!pthread_mutex_trylock (&_port_callback_mutex)) {
- if (_port_change_flag) {
- ports_changed = true;
- _port_change_flag = false;
- }
- if (!_port_connection_queue.empty ()) {
- connections_changed = true;
- }
- while (!_port_connection_queue.empty ()) {
- PortConnectData *c = _port_connection_queue.back ();
- manager.connect_callback (c->a, c->b, c->c);
- _port_connection_queue.pop_back ();
- delete c;
- }
- pthread_mutex_unlock (&_port_callback_mutex);
+void
+PortAudioBackend::process_outgoing_midi ()
+{
+ /* mixdown midi */
+ for (std::vector<PamPort*>::iterator it = _system_midi_out.begin();
+ it != _system_midi_out.end();
+ ++it) {
+ static_cast<PortMidiPort*>(*it)->next_period();
+ }
+ /* queue outgoing midi */
+ uint32_t i = 0;
+ for (std::vector<PamPort*>::const_iterator it = _system_midi_out.begin();
+ it != _system_midi_out.end();
+ ++it, ++i) {
+ const PortMidiBuffer* src =
+ static_cast<const PortMidiPort*>(*it)->const_buffer();
+
+ for (PortMidiBuffer::const_iterator mit = src->begin(); mit != src->end();
+ ++mit) {
+ uint64_t timestamp =
+ _cycle_timer.timestamp_from_sample_offset((*mit)->timestamp());
+ DEBUG_MIDI(string_compose("Queuing outgoing MIDI data for device: "
+ "%1 sample_offset: %2 timestamp: %3, size: %4\n",
+ _midiio->get_outputs()[i]->name(),
+ (*mit)->timestamp(),
+ timestamp,
+ (*mit)->size()));
+ _midiio->enqueue_output_event(i, timestamp, (*mit)->data(), (*mit)->size());
}
- if (ports_changed) {
- manager.registration_callback();
+ }
+}
+
+void
+PortAudioBackend::process_port_connection_changes ()
+{
+ bool connections_changed = false;
+ bool ports_changed = false;
+ if (!pthread_mutex_trylock (&_port_callback_mutex)) {
+ if (_port_change_flag) {
+ ports_changed = true;
+ _port_change_flag = false;
}
- if (connections_changed) {
- manager.graph_order_callback();
+ if (!_port_connection_queue.empty ()) {
+ connections_changed = true;
}
- if (connections_changed || ports_changed) {
- engine.latency_callback(false);
- engine.latency_callback(true);
+ while (!_port_connection_queue.empty ()) {
+ PortConnectData *c = _port_connection_queue.back ();
+ manager.connect_callback (c->a, c->b, c->c);
+ _port_connection_queue.pop_back ();
+ delete c;
}
-
+ pthread_mutex_unlock (&_port_callback_mutex);
}
- _pcmio->pcm_stop ();
- _active = false;
- if (_run) {
- engine.halted_callback("PortAudio I/O error.");
+ if (ports_changed) {
+ manager.registration_callback();
+ }
+ if (connections_changed) {
+ manager.graph_order_callback();
+ }
+ if (connections_changed || ports_changed) {
+ engine.latency_callback(false);
+ engine.latency_callback(true);
}
-
-#ifdef USE_MMCSS_THREAD_PRIORITIES
- mmcss::revert_thread_characteristics (task_handle);
-#endif
-
- return 0;
}
-
/******************************************************************************/
static boost::shared_ptr<PortAudioBackend> _instance;
static bool available ();
static ARDOUR::AudioBackendInfo _descriptor = {
- "PortAudio",
+ BACKEND_NAME,
instantiate,
deinstantiate,
backend_factory,
int PamPort::connect (PamPort *port)
{
if (!port) {
- PBD::error << _("PamPort::connect (): invalid (null) port") << endmsg;
+ DEBUG_PORTS("PamPort::connect (): invalid (null) port\n");
return -1;
}
if (type () != port->type ()) {
- PBD::error << _("PamPort::connect (): wrong port-type") << endmsg;
+ DEBUG_PORTS("PamPort::connect (): wrong port-type\n");
return -1;
}
if (is_output () && port->is_output ()) {
- PBD::error << _("PamPort::connect (): cannot inter-connect output ports.") << endmsg;
+ DEBUG_PORTS("PamPort::connect (): cannot inter-connect output ports.\n");
return -1;
}
if (is_input () && port->is_input ()) {
- PBD::error << _("PamPort::connect (): cannot inter-connect input ports.") << endmsg;
+ DEBUG_PORTS("PamPort::connect (): cannot inter-connect input ports.\n");
return -1;
}
if (this == port) {
- PBD::error << _("PamPort::connect (): cannot self-connect ports.") << endmsg;
+ DEBUG_PORTS("PamPort::connect (): cannot self-connect ports.\n");
return -1;
}
int PamPort::disconnect (PamPort *port)
{
if (!port) {
- PBD::error << _("PamPort::disconnect (): invalid (null) port") << endmsg;
+ DEBUG_PORTS("PamPort::disconnect (): invalid (null) port\n");
return -1;
}
if (!is_connected (port)) {
- PBD::error << _("PamPort::disconnect (): ports are not connected:")
- << " (" << name () << ") -> (" << port->name () << ")"
- << endmsg;
+ DEBUG_PORTS(string_compose(
+ "PamPort::disconnect (): ports are not connected: (%1) -> (%2)\n",
+ name(),
+ port->name()));
return -1;
}
_disconnect (port, true);
projects / ardour.git / blobdiff