+++ /dev/null
-/*
- * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
- * Copyright (C) 2013 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
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <regex.h>
-#include <sys/mman.h>
-#include <sys/time.h>
-
-#include <glibmm.h>
-
-#include "asio_backend.h"
-#include "rt_thread.h"
-
-#include "pbd/compose.h"
-#include "pbd/error.h"
-#include "pbd/file_utils.h"
-#include "ardour/filesystem_paths.h"
-#include "ardour/port_manager.h"
-#include "i18n.h"
-
-using namespace ARDOUR;
-
-static std::string s_instance_name;
-size_t ASIOBackend::_max_buffer_size = 8192;
-std::vector<std::string> ASIOBackend::_midi_options;
-std::vector<AudioBackend::DeviceStatus> ASIOBackend::_audio_device_status;
-
-
-/* static class instance access */
-static void hw_changed_callback_ptr (void *arg)
-{
- ASIOBackend *d = static_cast<ASIOBackend*> (arg);
- d->hw_changed_callback();
-}
-
-static void error_callback_ptr (void *arg)
-{
- ASIOBackend *d = static_cast<ASIOBackend*> (arg);
- d->error_callback();
-}
-
-static void xrun_callback_ptr (void *arg)
-{
- ASIOBackend *d = static_cast<ASIOBackend*> (arg);
- d->xrun_callback();
-}
-
-static void buffer_size_callback_ptr (void *arg)
-{
- ASIOBackend *d = static_cast<ASIOBackend*> (arg);
- d->buffer_size_callback();
-}
-
-static void sample_rate_callback_ptr (void *arg)
-{
- ASIOBackend *d = static_cast<ASIOBackend*> (arg);
- d->sample_rate_callback();
-}
-
-
-ASIOBackend::ASIOBackend (AudioEngine& e, AudioBackendInfo& info)
- : AudioBackend (e, info)
- , _run (false)
- , _active_cb (false)
- , _active_fw (false)
- , _freewheeling (false)
- , _freewheel (false)
- , _freewheel_ack (false)
- , _reinit_thread_callback (false)
- , _measure_latency (false)
- , _last_process_start (0)
- , _audio_device("")
- , _midi_driver_option(_("None"))
- , _samplerate (48000)
- , _samples_per_period (1024)
- , _n_inputs (0)
- , _n_outputs (0)
- , _systemic_audio_input_latency (0)
- , _systemic_audio_output_latency (0)
- , _dsp_load (0)
- , _processed_samples (0)
- , _port_change_flag (false)
-{
- _instance_name = s_instance_name;
- pthread_mutex_init (&_port_callback_mutex, 0);
- pthread_mutex_init (&_process_callback_mutex, 0);
- pthread_mutex_init (&_freewheel_mutex, 0);
- pthread_cond_init (&_freewheel_signal, 0);
-
-#if 0 // TODO
- //_pcmio = new ASIOPCM ();
- //_midiio = new WindowsMidiIo ();
-
- _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
- _pcmio->discover();
-#endif
-}
-
-ASIOBackend::~ASIOBackend ()
-{
-#if 0
- delete _pcmio; _pcmio = 0; // TODO
- delete _midiio; _midiio = 0; // TODO
-#endif
- pthread_mutex_destroy (&_port_callback_mutex);
- pthread_mutex_destroy (&_process_callback_mutex);
- pthread_mutex_destroy (&_freewheel_mutex);
- pthread_cond_destroy (&_freewheel_signal);
-}
-
-/* AUDIOBACKEND API */
-
-std::string
-ASIOBackend::name () const
-{
- return X_("ASIO");
-}
-
-bool
-ASIOBackend::is_realtime () const
-{
- return true;
-}
-
-std::vector<AudioBackend::DeviceStatus>
-ASIOBackend::enumerate_devices () const
-{
- _audio_device_status.clear();
-#if 0 // TODO
- std::map<size_t, std::string> devices;
- _pcmio->device_list(devices);
-
- for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
- if (_audio_device == "") _audio_device = i->second;
- _audio_device_status.push_back (DeviceStatus (i->second, true));
- }
-#endif
- return _audio_device_status;
-}
-
-std::vector<float>
-ASIOBackend::available_sample_rates (const std::string&) const
-{
- std::vector<float> sr;
-#if 0 // TODO
- _pcmio->available_sample_rates(_audio_device, sr);
-#endif
- return sr;
-}
-
-std::vector<uint32_t>
-ASIOBackend::available_buffer_sizes (const std::string&) const
-{
- std::vector<uint32_t> bs;
-#if 0 // TODO
- _pcmio->available_buffer_sizes(_audio_device, bs);
-#endif
- return bs;
-}
-
-uint32_t
-ASIOBackend::available_input_channel_count (const std::string&) const
-{
- return 128; // TODO query current device
-}
-
-uint32_t
-ASIOBackend::available_output_channel_count (const std::string&) const
-{
- return 128; // TODO query current device
-}
-
-bool
-ASIOBackend::can_change_sample_rate_when_running () const
-{
- return false;
-}
-
-bool
-ASIOBackend::can_change_buffer_size_when_running () const
-{
- return true;
-}
-
-int
-ASIOBackend::set_device_name (const std::string& d)
-{
- _audio_device = d;
-#if 0 // TODO
- const float sr = _pcmio->current_sample_rate(_audio_device);
-#endif
- //if (sr > 0) { set_sample_rate(sr); }
- return 0;
-}
-
-int
-ASIOBackend::set_sample_rate (float sr)
-{
- if (sr <= 0) { return -1; }
- // TODO check if it's in the list of valid SR
- _samplerate = sr;
- engine.sample_rate_change (sr);
- return 0;
-}
-
-int
-ASIOBackend::set_buffer_size (uint32_t bs)
-{
- if (bs <= 0 || bs >= _max_buffer_size) {
- return -1;
- }
- _samples_per_period = bs;
-#if 0 // TODO
- _pcmio->set_samples_per_period(bs);
-#endif
- engine.buffer_size_change (bs);
- return 0;
-}
-
-int
-ASIOBackend::set_interleaved (bool yn)
-{
- if (!yn) { return 0; }
- return -1;
-}
-
-int
-ASIOBackend::set_input_channels (uint32_t cc)
-{
- _n_inputs = cc;
- return 0;
-}
-
-int
-ASIOBackend::set_output_channels (uint32_t cc)
-{
- _n_outputs = cc;
- return 0;
-}
-
-int
-ASIOBackend::set_systemic_input_latency (uint32_t sl)
-{
- _systemic_audio_input_latency = sl;
- return 0;
-}
-
-int
-ASIOBackend::set_systemic_output_latency (uint32_t sl)
-{
- _systemic_audio_output_latency = sl;
- return 0;
-}
-
-/* Retrieving parameters */
-std::string
-ASIOBackend::device_name () const
-{
- return _audio_device;
-}
-
-float
-ASIOBackend::sample_rate () const
-{
- return _samplerate;
-}
-
-uint32_t
-ASIOBackend::buffer_size () const
-{
- return _samples_per_period;
-}
-
-bool
-ASIOBackend::interleaved () const
-{
- return false;
-}
-
-uint32_t
-ASIOBackend::input_channels () const
-{
- return _n_inputs;
-}
-
-uint32_t
-ASIOBackend::output_channels () const
-{
- return _n_outputs;
-}
-
-uint32_t
-ASIOBackend::systemic_input_latency () const
-{
- return _systemic_audio_input_latency;
-}
-
-uint32_t
-ASIOBackend::systemic_output_latency () const
-{
- return _systemic_audio_output_latency;
-}
-
-/* MIDI */
-
-std::vector<std::string>
-ASIOBackend::enumerate_midi_options () const
-{
- if (_midi_options.empty()) {
- _midi_options.push_back (_("WindowsMidi"));
- _midi_options.push_back (_("None"));
- }
- return _midi_options;
-}
-
-int
-ASIOBackend::set_midi_option (const std::string& opt)
-{
- if (opt != _("None") && opt != _("WindowsMidi")) {
- return -1;
- }
- _midi_driver_option = opt;
- return 0;
-}
-
-std::string
-ASIOBackend::midi_option () const
-{
- return _midi_driver_option;
-}
-
-void
-ASIOBackend::launch_control_app ()
-{
- // TODO
-}
-
-/* State Control */
-
-static void * pthread_freewheel (void *arg)
-{
- ASIOBackend *d = static_cast<ASIOBackend *>(arg);
- d->freewheel_thread ();
- pthread_exit (0);
- return 0;
-}
-
-static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
-{
- ASIOBackend *d = static_cast<ASIOBackend*> (arg);
- return d->process_callback(n_samples, host_time);
-}
-
-int
-ASIOBackend::_start (bool for_latency_measurement)
-{
- if ((!_active_cb || !_active_fw) && _run) {
- // recover from 'halted', reap threads
- stop();
- }
-
- if (_active_cb || _active_fw || _run) {
- PBD::error << _("ASIOBackend: already active.") << endmsg;
- return -1;
- }
-
- if (_ports.size()) {
- PBD::warning << _("ASIOBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
- _system_inputs.clear();
- _system_outputs.clear();
- _system_midi_in.clear();
- _system_midi_out.clear();
- _ports.clear();
- }
-
- assert(_active_cb == false);
- assert(_active_fw == false);
-
- _freewheel_ack = false;
- _reinit_thread_callback = true;
- _last_process_start = 0;
-
-#if 0 // TODO
- _pcmio->set_error_callback (error_callback_ptr, this);
- _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
- _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
-
- _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
-
- switch (_pcmio->state ()) {
- case 0: /* OK */ break;
- case -1: PBD::error << _("ASIOBackend: failed to open device.") << endmsg; break;
- default: PBD::error << _("ASIOBackend: initialization failed.") << endmsg; break;
- }
- if (_pcmio->state ()) {
- return -1;
- }
-
- if (_n_outputs != _pcmio->n_playback_channels ()) {
- if (_n_outputs == 0) {
- _n_outputs = _pcmio->n_playback_channels ();
- } else {
- _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
- }
- PBD::info << _("ASIOBackend: adjusted output channel count to match device.") << endmsg;
- }
-
- if (_n_inputs != _pcmio->n_capture_channels ()) {
- if (_n_inputs == 0) {
- _n_inputs = _pcmio->n_capture_channels ();
- } else {
- _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
- }
- PBD::info << _("ASIOBackend: adjusted input channel count to match device.") << endmsg;
- }
-
- if (_pcmio->samples_per_period() != _samples_per_period) {
- _samples_per_period = _pcmio->samples_per_period();
- PBD::warning << _("ASIOBackend: samples per period does not match.") << endmsg;
- }
-
- if (_pcmio->sample_rate() != _samplerate) {
- _samplerate = _pcmio->sample_rate();
- engine.sample_rate_change (_samplerate);
- PBD::warning << _("ASIOBackend: sample rate does not match.") << endmsg;
- }
-#endif
-
- _measure_latency = for_latency_measurement;
-
- _preinit = true;
- _run = true;
- _port_change_flag = false;
-
-#if 0 // TODO
- if (_midi_driver_option == _("WindowsMidi")) {
- // TODO
- //_midiio->set_enabled(true);
- //_midiio->set_port_changed_callback(midi_port_change, this);
- //_midiio->start(); // triggers port discovery, callback coremidi_rediscover()
- }
-#endif
-
- if (register_system_audio_ports()) {
- PBD::error << _("ASIOBackend: failed to register system ports.") << endmsg;
- _run = false;
- return -1;
- }
-
- engine.sample_rate_change (_samplerate);
- engine.buffer_size_change (_samples_per_period);
-
- if (engine.reestablish_ports ()) {
- PBD::error << _("ASIOBackend: Could not re-establish ports.") << endmsg;
- _run = false;
- return -1;
- }
-
- if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
- {
- PBD::error << _("ASIOBackend: failed to create process thread.") << endmsg;
-#if 0 // TODO
- delete _pcmio; _pcmio = 0;
-#endif
- _run = false;
- return -1;
- }
-
- int timeout = 5000;
- while ((!_active_cb || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
-
- if (timeout == 0) {
- PBD::error << _("ASIOBackend: failed to start.") << endmsg;
- }
-
- if (!_active_fw) {
- PBD::error << _("ASIOBackend: failed to start freewheeling thread.") << endmsg;
- _run = false;
-#if 0 // TODO
- _pcmio->pcm_stop();
-#endif
- unregister_ports();
- _active_cb = false;
- _active_fw = false;
- return -1;
- }
-
- if (!_active_cb) {
- PBD::error << _("ASIOBackend: failed to start ASIO.") << endmsg;
- stop();
- _run = false;
- return -1;
- }
-
- engine.reconnect_ports ();
-
- // force an initial registration_callback() & latency re-compute
- _port_change_flag = true;
- pre_process ();
-
- // all systems go.
-#if 0 // TODO
- _pcmio->set_xrun_callback (xrun_callback_ptr, this);
-#endif
- _preinit = false;
-
- return 0;
-}
-
-int
-ASIOBackend::stop ()
-{
- void *status;
- if (!_run) {
- return 0;
- }
-
- _run = false;
-#if 0 // TODO
- _pcmio->pcm_stop();
- _midiio->set_port_changed_callback(NULL, NULL);
- _midiio->stop();
-#endif
- pthread_mutex_lock (&_freewheel_mutex);
- pthread_cond_signal (&_freewheel_signal);
- pthread_mutex_unlock (&_freewheel_mutex);
-
- if (pthread_join (_freeewheel_thread, &status)) {
- PBD::error << _("ASIOBackend: failed to terminate.") << endmsg;
- return -1;
- }
-
- unregister_ports();
-
- _active_cb = false;
- _active_fw = false; // ??
-
- return 0;
-}
-
-int
-ASIOBackend::freewheel (bool onoff)
-{
- if (onoff == _freewheeling) {
- return 0;
- }
- _freewheeling = onoff;
- // wake up freewheeling thread
- if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
- pthread_cond_signal (&_freewheel_signal);
- pthread_mutex_unlock (&_freewheel_mutex);
- }
- return 0;
-}
-
-float
-ASIOBackend::dsp_load () const
-{
- return 100.f * _dsp_load;
-}
-
-size_t
-ASIOBackend::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
- }
- return 0;
-}
-
-/* Process time */
-framepos_t
-ASIOBackend::sample_time ()
-{
- return _processed_samples;
-}
-
-framepos_t
-ASIOBackend::sample_time_at_cycle_start ()
-{
- return _processed_samples;
-}
-
-pframes_t
-ASIOBackend::samples_since_cycle_start ()
-{
- if (!_active_cb || !_run || _freewheeling || _freewheel) {
- return 0;
- }
- if (_last_process_start == 0) {
- return 0;
- }
-
-#if 0 // TODO
- const uint64_t now = AudioGetCurrentHostTime ();
- const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
- return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
-#else
- return 0;
-#endif
-}
-
-void *
-ASIOBackend::asio_process_thread (void *arg)
-{
- ThreadData* td = reinterpret_cast<ThreadData*> (arg);
- boost::function<void ()> f = td->f;
- delete td;
- f ();
- return 0;
-}
-
-int
-ASIOBackend::create_process_thread (boost::function<void()> func)
-{
- pthread_t thread_id;
- pthread_attr_t attr;
- size_t stacksize = 100000;
-
- ThreadData* td = new ThreadData (this, func, stacksize);
-
- if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
- &thread_id, asio_process_thread, td)) {
- pthread_attr_init (&attr);
- pthread_attr_setstacksize (&attr, stacksize);
- if (pthread_create (&thread_id, &attr, asio_process_thread, td)) {
- PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
- pthread_attr_destroy (&attr);
- return -1;
- }
- pthread_attr_destroy (&attr);
- }
-
- _threads.push_back (thread_id);
- return 0;
-}
-
-int
-ASIOBackend::join_process_threads ()
-{
- int rv = 0;
-
- for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
- {
- void *status;
- if (pthread_join (*i, &status)) {
- PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
- rv -= 1;
- }
- }
- _threads.clear ();
- return rv;
-}
-
-bool
-ASIOBackend::in_process_thread ()
-{
- 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) {
- return true;
- }
- }
- return false;
-}
-
-uint32_t
-ASIOBackend::process_thread_count ()
-{
- return _threads.size ();
-}
-
-void
-ASIOBackend::update_latencies ()
-{
- // trigger latency callback in RT thread (locked graph)
- port_connect_add_remove_callback();
-}
-
-/* PORTENGINE API */
-
-void*
-ASIOBackend::private_handle () const
-{
- return NULL;
-}
-
-const std::string&
-ASIOBackend::my_name () const
-{
- return _instance_name;
-}
-
-bool
-ASIOBackend::available () const
-{
- return _run && _active_fw && _active_cb;
-}
-
-uint32_t
-ASIOBackend::port_name_size () const
-{
- return 256;
-}
-
-int
-ASIOBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackend::set_port_name: Invalid Port(s)") << endmsg;
- return -1;
- }
- return static_cast<ASIOBackendPort*>(port)->set_name (_instance_name + ":" + name);
-}
-
-std::string
-ASIOBackend::get_port_name (PortEngine::PortHandle port) const
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackend::get_port_name: Invalid Port(s)") << endmsg;
- return std::string ();
- }
- return static_cast<ASIOBackendPort*>(port)->name ();
-}
-
-int
-ASIOBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackend::get_port_name: Invalid Port(s)") << endmsg;
- return -1;
- }
- if (key == "http://jackaudio.org/metadata/pretty-name") {
- type = "";
- value = static_cast<ASIOBackendPort*>(port)->pretty_name ();
- if (!value.empty()) {
- return 0;
- }
- }
- return -1;
-}
-
-PortEngine::PortHandle
-ASIOBackend::get_port_by_name (const std::string& name) const
-{
- PortHandle port = (PortHandle) find_port (name);
- return port;
-}
-
-int
-ASIOBackend::get_ports (
- const std::string& port_name_pattern,
- DataType type, PortFlags flags,
- std::vector<std::string>& port_names) const
-{
- int rv = 0;
- regex_t port_regex;
- bool use_regexp = false;
- if (port_name_pattern.size () > 0) {
- if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
- use_regexp = true;
- }
- }
- for (size_t i = 0; i < _ports.size (); ++i) {
- ASIOBackendPort* port = _ports[i];
- if ((port->type () == type) && (port->flags () & flags)) {
- if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
- port_names.push_back (port->name ());
- ++rv;
- }
- }
- }
- if (use_regexp) {
- regfree (&port_regex);
- }
- return rv;
-}
-
-DataType
-ASIOBackend::port_data_type (PortEngine::PortHandle port) const
-{
- if (!valid_port (port)) {
- return DataType::NIL;
- }
- return static_cast<ASIOBackendPort*>(port)->type ();
-}
-
-PortEngine::PortHandle
-ASIOBackend::register_port (
- const std::string& name,
- ARDOUR::DataType type,
- ARDOUR::PortFlags flags)
-{
- if (name.size () == 0) { return 0; }
- if (flags & IsPhysical) { return 0; }
- return add_port (_instance_name + ":" + name, type, flags);
-}
-
-PortEngine::PortHandle
-ASIOBackend::add_port (
- const std::string& name,
- ARDOUR::DataType type,
- ARDOUR::PortFlags flags)
-{
- assert(name.size ());
- if (find_port (name)) {
- PBD::error << _("ASIOBackend::register_port: Port already exists:")
- << " (" << name << ")" << endmsg;
- return 0;
- }
- ASIOBackendPort* port = NULL;
- switch (type) {
- case DataType::AUDIO:
- port = new ASIOPort (*this, name, flags);
- break;
- case DataType::MIDI:
- port = new WindowsMidiPort (*this, name, flags);
- break;
- default:
- PBD::error << _("ASIOBackend::register_port: Invalid Data Type.") << endmsg;
- return 0;
- }
-
- _ports.push_back (port);
-
- return port;
-}
-
-void
-ASIOBackend::unregister_port (PortEngine::PortHandle port_handle)
-{
- if (!_run) {
- return;
- }
- ASIOBackendPort* port = static_cast<ASIOBackendPort*>(port_handle);
- std::vector<ASIOBackendPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<ASIOBackendPort*>(port_handle));
- if (i == _ports.end ()) {
- PBD::error << _("ASIOBackend::unregister_port: Failed to find port") << endmsg;
- return;
- }
- disconnect_all(port_handle);
- _ports.erase (i);
- delete port;
-}
-
-int
-ASIOBackend::register_system_audio_ports()
-{
- LatencyRange lr;
-
- const uint32_t a_ins = _n_inputs;
- const uint32_t a_out = _n_outputs;
-
- const uint32_t asio_reported_input_latency = 0; // TODO _pcmio->get_latency(_audio_device, true);
- const uint32_t asio_reported_output_latency = 0; // TODO _pcmio->get_latency(_audio_device, false);
-
- /* audio ports */
- lr.min = lr.max = asio_reported_input_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);
- PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
- if (!p) return -1;
- set_latency_range (p, false, lr);
- ASIOBackendPort *cp = static_cast<ASIOBackendPort*>(p);
- //cp->set_pretty_name (_pcmio->cached_port_name(i, true)); // TODO
- _system_inputs.push_back(cp);
- }
-
- lr.min = lr.max = asio_reported_output_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);
- PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
- if (!p) return -1;
- set_latency_range (p, true, lr);
- ASIOBackendPort *cp = static_cast<ASIOBackendPort*>(p);
- //cp->set_pretty_name (_pcmio->cached_port_name(i, false)); // TODO
- _system_outputs.push_back(cp);
- }
- return 0;
-}
-
-void
-ASIOBackend::unregister_ports (bool system_only)
-{
- size_t i = 0;
- _system_inputs.clear();
- _system_outputs.clear();
- _system_midi_in.clear();
- _system_midi_out.clear();
- while (i < _ports.size ()) {
- ASIOBackendPort* port = _ports[i];
- if (! system_only || (port->is_physical () && port->is_terminal ())) {
- port->disconnect_all ();
- delete port;
- _ports.erase (_ports.begin() + i);
- } else {
- ++i;
- }
- }
-}
-
-int
-ASIOBackend::connect (const std::string& src, const std::string& dst)
-{
- ASIOBackendPort* src_port = find_port (src);
- ASIOBackendPort* dst_port = find_port (dst);
-
- if (!src_port) {
- PBD::error << _("ASIOBackend::connect: Invalid Source port:")
- << " (" << src <<")" << endmsg;
- return -1;
- }
- if (!dst_port) {
- PBD::error << _("ASIOBackend::connect: Invalid Destination port:")
- << " (" << dst <<")" << endmsg;
- return -1;
- }
- return src_port->connect (dst_port);
-}
-
-int
-ASIOBackend::disconnect (const std::string& src, const std::string& dst)
-{
- ASIOBackendPort* src_port = find_port (src);
- ASIOBackendPort* dst_port = find_port (dst);
-
- if (!src_port || !dst_port) {
- PBD::error << _("ASIOBackend::disconnect: Invalid Port(s)") << endmsg;
- return -1;
- }
- return src_port->disconnect (dst_port);
-}
-
-int
-ASIOBackend::connect (PortEngine::PortHandle src, const std::string& dst)
-{
- ASIOBackendPort* dst_port = find_port (dst);
- if (!valid_port (src)) {
- PBD::error << _("ASIOBackend::connect: Invalid Source Port Handle") << endmsg;
- return -1;
- }
- if (!dst_port) {
- PBD::error << _("ASIOBackend::connect: Invalid Destination Port")
- << " (" << dst << ")" << endmsg;
- return -1;
- }
- return static_cast<ASIOBackendPort*>(src)->connect (dst_port);
-}
-
-int
-ASIOBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
-{
- ASIOBackendPort* dst_port = find_port (dst);
- if (!valid_port (src) || !dst_port) {
- PBD::error << _("ASIOBackend::disconnect: Invalid Port(s)") << endmsg;
- return -1;
- }
- return static_cast<ASIOBackendPort*>(src)->disconnect (dst_port);
-}
-
-int
-ASIOBackend::disconnect_all (PortEngine::PortHandle port)
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackend::disconnect_all: Invalid Port") << endmsg;
- return -1;
- }
- static_cast<ASIOBackendPort*>(port)->disconnect_all ();
- return 0;
-}
-
-bool
-ASIOBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackend::disconnect_all: Invalid Port") << endmsg;
- return false;
- }
- return static_cast<ASIOBackendPort*>(port)->is_connected ();
-}
-
-bool
-ASIOBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
-{
- ASIOBackendPort* dst_port = find_port (dst);
- if (!valid_port (src) || !dst_port) {
- PBD::error << _("ASIOBackend::connected_to: Invalid Port") << endmsg;
- return false;
- }
- return static_cast<ASIOBackendPort*>(src)->is_connected (dst_port);
-}
-
-bool
-ASIOBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackend::physically_connected: Invalid Port") << endmsg;
- return false;
- }
- return static_cast<ASIOBackendPort*>(port)->is_physically_connected ();
-}
-
-int
-ASIOBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackend::get_connections: Invalid Port") << endmsg;
- return -1;
- }
-
- assert (0 == names.size ());
-
- const std::vector<ASIOBackendPort*>& connected_ports = static_cast<ASIOBackendPort*>(port)->get_connections ();
-
- for (std::vector<ASIOBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
- names.push_back ((*i)->name ());
- }
-
- return (int)names.size ();
-}
-
-/* MIDI */
-int
-ASIOBackend::midi_event_get (
- pframes_t& timestamp,
- size_t& size, uint8_t** buf, void* port_buffer,
- uint32_t event_index)
-{
- if (!buf || !port_buffer) return -1;
- WindowsMidiBuffer& source = * static_cast<WindowsMidiBuffer*>(port_buffer);
- if (event_index >= source.size ()) {
- return -1;
- }
- WindowsMidiEvent * const event = source[event_index].get ();
-
- timestamp = event->timestamp ();
- size = event->size ();
- *buf = event->data ();
- return 0;
-}
-
-int
-ASIOBackend::midi_event_put (
- void* port_buffer,
- pframes_t timestamp,
- const uint8_t* buffer, size_t size)
-{
- if (!buffer || !port_buffer) return -1;
- WindowsMidiBuffer& dst = * static_cast<WindowsMidiBuffer*>(port_buffer);
- if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
-#ifndef NDEBUG
- // nevermind, ::get_buffer() sorts events
- fprintf (stderr, "WindowsMidiBuffer: unordered event: %d > %d\n",
- (pframes_t)dst.back ()->timestamp (), timestamp);
-#endif
- }
- dst.push_back (boost::shared_ptr<WindowsMidiEvent>(new WindowsMidiEvent (timestamp, buffer, size)));
- return 0;
-}
-
-uint32_t
-ASIOBackend::get_midi_event_count (void* port_buffer)
-{
- if (!port_buffer) return 0;
- return static_cast<WindowsMidiBuffer*>(port_buffer)->size ();
-}
-
-void
-ASIOBackend::midi_clear (void* port_buffer)
-{
- if (!port_buffer) return;
- WindowsMidiBuffer * buf = static_cast<WindowsMidiBuffer*>(port_buffer);
- assert (buf);
- buf->clear ();
-}
-
-/* Monitoring */
-
-bool
-ASIOBackend::can_monitor_input () const
-{
- return false;
-}
-
-int
-ASIOBackend::request_input_monitoring (PortEngine::PortHandle, bool)
-{
- return -1;
-}
-
-int
-ASIOBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
-{
- return -1;
-}
-
-bool
-ASIOBackend::monitoring_input (PortEngine::PortHandle)
-{
- return false;
-}
-
-/* Latency management */
-
-void
-ASIOBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackendPort::set_latency_range (): invalid port.") << endmsg;
- }
- static_cast<ASIOBackendPort*>(port)->set_latency_range (latency_range, for_playback);
-}
-
-LatencyRange
-ASIOBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
-{
- LatencyRange r;
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackendPort::get_latency_range (): invalid port.") << endmsg;
- r.min = 0;
- r.max = 0;
- return r;
- }
- ASIOBackendPort* p = static_cast<ASIOBackendPort*>(port);
- assert(p);
-
- r = p->latency_range (for_playback);
- if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
- if (p->is_input() && for_playback) {
- r.min += _samples_per_period;
- r.max += _samples_per_period;
- }
- if (p->is_output() && !for_playback) {
- r.min += _samples_per_period;
- r.max += _samples_per_period;
- }
- }
- return r;
-}
-
-/* Discovering physical ports */
-
-bool
-ASIOBackend::port_is_physical (PortEngine::PortHandle port) const
-{
- if (!valid_port (port)) {
- PBD::error << _("ASIOBackendPort::port_is_physical (): invalid port.") << endmsg;
- return false;
- }
- return static_cast<ASIOBackendPort*>(port)->is_physical ();
-}
-
-void
-ASIOBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
-{
- for (size_t i = 0; i < _ports.size (); ++i) {
- ASIOBackendPort* port = _ports[i];
- if ((port->type () == type) && port->is_input () && port->is_physical ()) {
- port_names.push_back (port->name ());
- }
- }
-}
-
-void
-ASIOBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
-{
- for (size_t i = 0; i < _ports.size (); ++i) {
- ASIOBackendPort* port = _ports[i];
- if ((port->type () == type) && port->is_output () && port->is_physical ()) {
- port_names.push_back (port->name ());
- }
- }
-}
-
-ChanCount
-ASIOBackend::n_physical_outputs () const
-{
- int n_midi = 0;
- int n_audio = 0;
- for (size_t i = 0; i < _ports.size (); ++i) {
- ASIOBackendPort* 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;
- }
- }
- }
- ChanCount cc;
- cc.set (DataType::AUDIO, n_audio);
- cc.set (DataType::MIDI, n_midi);
- return cc;
-}
-
-ChanCount
-ASIOBackend::n_physical_inputs () const
-{
- int n_midi = 0;
- int n_audio = 0;
- for (size_t i = 0; i < _ports.size (); ++i) {
- ASIOBackendPort* 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;
- }
- }
- }
- ChanCount cc;
- cc.set (DataType::AUDIO, n_audio);
- cc.set (DataType::MIDI, n_midi);
- return cc;
-}
-
-/* Getting access to the data buffer for a port */
-
-void*
-ASIOBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
-{
- if (!port || !valid_port (port)) return NULL;
- return static_cast<ASIOBackendPort*>(port)->get_buffer (nframes);
-}
-
-void
-ASIOBackend::pre_process ()
-{
- 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);
- }
- 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);
- }
-}
-
-void *
-ASIOBackend::freewheel_thread ()
-{
- _active_fw = true;
- bool first_run = false;
- /* Freewheeling - use for export. The first call to
- * engine.process_callback() after engine.freewheel_callback will
- * if the first export cycle.
- * For reliable precise export timing, the calls need to be in sync.
- *
- * Furthermore we need to make sure the registered process thread
- * is correct.
- *
- * _freewheeling = GUI thread state as set by ::freewheel()
- * _freewheel = in sync here (export thread)
- */
- pthread_mutex_lock (&_freewheel_mutex);
- while (_run) {
- // check if we should run,
- if (_freewheeling != _freewheel) {
- if (!_freewheeling) {
- // prepare leaving freewheeling mode
- _freewheel = false; // first mark as disabled
- _reinit_thread_callback = true; // hand over _main_thread
- _freewheel_ack = false; // prepare next handshake
-#if 0 // TODO disable hadrware MIDI threads during freewheeling
- _midiio->set_enabled(true);
-#endif
- } 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;
- 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);
-#if 0 // TODO
- _midiio->set_enabled(false);
-#endif
- }
-
- // process port updates first in every cycle.
- pre_process();
-
- // prevent device changes
- pthread_mutex_lock (&_process_callback_mutex);
-
- /* Freewheelin' */
-
- // clear input buffers
- for (std::vector<ASIOBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
- memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
- }
- for (std::vector<ASIOBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
- static_cast<WindowsMidiBuffer*>((*it)->get_buffer(0))->clear ();
- }
-
- _last_process_start = 0;
- if (engine.process_callback (_samples_per_period)) {
- pthread_mutex_unlock (&_process_callback_mutex);
- break;
- }
-
- pthread_mutex_unlock (&_process_callback_mutex);
- _dsp_load = 1.0;
- Glib::usleep (100); // don't hog cpu
- }
-
- pthread_mutex_unlock (&_freewheel_mutex);
-
- _active_fw = false;
-
- if (_run) {
- // engine.process_callback() returner error
- engine.halted_callback("ASIO Freehweeling aborted.");
- }
- return 0;
-}
-
-int
-ASIOBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
-{
- uint32_t i = 0;
- uint64_t clock1, clock2;
-
- _active_cb = true;
-
- if (_run && _freewheel && !_freewheel_ack) {
- // acknowledge freewheeling; hand-over thread ID
- pthread_mutex_lock (&_freewheel_mutex);
- if (_freewheel) _freewheel_ack = true;
- pthread_cond_signal (&_freewheel_signal);
- pthread_mutex_unlock (&_freewheel_mutex);
- }
-
- if (!_run || _freewheel || _preinit) {
- // NB if we return 1, the output is
- // zeroed by the asio callback
- return 1;
- }
-
- if (_reinit_thread_callback || _main_thread != pthread_self()) {
- _reinit_thread_callback = false;
- _main_thread = pthread_self();
- AudioEngine::thread_init_callback (this);
- }
-
- if (pthread_mutex_trylock (&_process_callback_mutex)) {
- // block while devices are added/removed
-#ifndef NDEBUG
- printf("Xrun due to device change\n");
-#endif
- engine.Xrun();
- return 1;
- }
- /* port-connection change */
- pre_process();
-
- // cycle-length in usec
- const double nominal_time = 1e6 * n_samples / _samplerate;
-
- clock1 = g_get_monotonic_time();
-
- /* get midi */
- i=0;
- for (std::vector<ASIOBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
- WindowsMidiBuffer* mbuf = static_cast<WindowsMidiBuffer*>((*it)->get_buffer(0));
- mbuf->clear();
-#if 0 // TODO
- uint64_t time_ns;
- uint8_t data[128];
- size_t size = sizeof(data);
- while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
- pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
- assert (time < n_samples);
- midi_event_put((void*)mbuf, time, data, size);
- size = sizeof(data);
- }
-#endif
- }
-
- /* get audio */
- i = 0;
- for (std::vector<ASIOBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
-#if 0 // TODO
- _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
-#else
- memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
-#endif
- }
-
- /* clear output buffers */
- for (std::vector<ASIOBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
- memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
- }
-
-#if 0 // TODO; sync Audio + midi
- _midiio->start_cycle();
-#endif
- _last_process_start = host_time;
-
- if (engine.process_callback (n_samples)) {
- fprintf(stderr, "ENGINE PROCESS ERROR\n");
- _active_cb = false;
- pthread_mutex_unlock (&_process_callback_mutex);
- return -1;
- }
-
- /* mixdown midi */
- for (std::vector<ASIOBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
- static_cast<WindowsMidiPort*>(*it)->get_buffer(0);
- }
-
- /* queue outgoing midi */
-#if 0 // TODO
- i = 0;
- for (std::vector<ASIOBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
-#if 0 // something's still b0rked with WindowsMidiIo::send_events()
- const WindowsMidiBuffer *src = static_cast<const WindowsMidiPort*>(*it)->const_buffer();
- _midiio->send_events (i, nominal_time, (void*)src);
-#else // works..
- const WindowsMidiBuffer *src = static_cast<const WindowsMidiPort*>(*it)->const_buffer();
- for (WindowsMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
- _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
- }
-#endif
- }
-#endif
-
- /* write back audio */
-#if 0 // TODO
- i = 0;
- for (std::vector<ASIOBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
- _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
- }
-#endif
-
- _processed_samples += n_samples;
-
- /* calc DSP load. */
- clock2 = g_get_monotonic_time();
- const int64_t elapsed_time = clock2 - clock1;
- _dsp_load = elapsed_time / nominal_time;
-
- pthread_mutex_unlock (&_process_callback_mutex);
- return 0;
-}
-
-void
-ASIOBackend::error_callback ()
-{
-#if 0 // TODO
- _pcmio->set_error_callback (NULL, NULL);
- _pcmio->set_sample_rate_callback (NULL, NULL);
- _pcmio->set_xrun_callback (NULL, NULL);
- _midiio->set_port_changed_callback(NULL, NULL);
-#endif
- engine.halted_callback("ASIO Process aborted.");
- _active_cb = false;
-}
-
-void
-ASIOBackend::xrun_callback ()
-{
- engine.Xrun ();
-}
-
-void
-ASIOBackend::buffer_size_callback ()
-{
-#if 0 // TODO
- uint32_t bs = _pcmio->samples_per_period();
- if (bs == _samples_per_period) {
- return;
- }
- _samples_per_period = bs;
- engine.buffer_size_change (_samples_per_period);
-#endif
-}
-
-void
-ASIOBackend::sample_rate_callback ()
-{
-#if 0 // TODO
- _pcmio->set_error_callback (NULL, NULL);
- _pcmio->set_sample_rate_callback (NULL, NULL);
- _pcmio->set_xrun_callback (NULL, NULL);
- _midiio->set_port_changed_callback(NULL, NULL);
- engine.halted_callback("Sample Rate Changed.");
- stop();
-#endif
-}
-
-void
-ASIOBackend::hw_changed_callback ()
-{
-#if 0 // TODO
- _reinit_thread_callback = true;
- engine.request_device_list_update();
-#endif
-}
-
-/******************************************************************************/
-
-static boost::shared_ptr<ASIOBackend> _instance;
-
-static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
-static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
-static int deinstantiate ();
-static bool already_configured ();
-static bool available ();
-
-static ARDOUR::AudioBackendInfo _descriptor = {
- "ASIO",
- instantiate,
- deinstantiate,
- backend_factory,
- already_configured,
- available
-};
-
-static boost::shared_ptr<AudioBackend>
-backend_factory (AudioEngine& e)
-{
- if (!_instance) {
- _instance.reset (new ASIOBackend (e, _descriptor));
- }
- return _instance;
-}
-
-static int
-instantiate (const std::string& arg1, const std::string& /* arg2 */)
-{
- s_instance_name = arg1;
- return 0;
-}
-
-static int
-deinstantiate ()
-{
- _instance.reset ();
- return 0;
-}
-
-static bool
-already_configured ()
-{
- return false;
-}
-
-static bool
-available ()
-{
- return true;
-}
-
-extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
-{
- return &_descriptor;
-}
-
-
-/******************************************************************************/
-ASIOBackendPort::ASIOBackendPort (ASIOBackend &b, const std::string& name, PortFlags flags)
- : _osx_backend (b)
- , _name (name)
- , _flags (flags)
-{
- _capture_latency_range.min = 0;
- _capture_latency_range.max = 0;
- _playback_latency_range.min = 0;
- _playback_latency_range.max = 0;
-}
-
-ASIOBackendPort::~ASIOBackendPort () {
- disconnect_all ();
-}
-
-
-int ASIOBackendPort::connect (ASIOBackendPort *port)
-{
- if (!port) {
- PBD::error << _("ASIOBackendPort::connect (): invalid (null) port") << endmsg;
- return -1;
- }
-
- if (type () != port->type ()) {
- PBD::error << _("ASIOBackendPort::connect (): wrong port-type") << endmsg;
- return -1;
- }
-
- if (is_output () && port->is_output ()) {
- PBD::error << _("ASIOBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
- return -1;
- }
-
- if (is_input () && port->is_input ()) {
- PBD::error << _("ASIOBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
- return -1;
- }
-
- if (this == port) {
- PBD::error << _("ASIOBackendPort::connect (): cannot self-connect ports.") << endmsg;
- return -1;
- }
-
- if (is_connected (port)) {
-#if 0 // don't bother to warn about this for now. just ignore it
- PBD::error << _("ASIOBackendPort::connect (): ports are already connected:")
- << " (" << name () << ") -> (" << port->name () << ")"
- << endmsg;
-#endif
- return -1;
- }
-
- _connect (port, true);
- return 0;
-}
-
-
-void ASIOBackendPort::_connect (ASIOBackendPort *port, bool callback)
-{
- _connections.push_back (port);
- if (callback) {
- port->_connect (this, false);
- _osx_backend.port_connect_callback (name(), port->name(), true);
- }
-}
-
-int ASIOBackendPort::disconnect (ASIOBackendPort *port)
-{
- if (!port) {
- PBD::error << _("ASIOBackendPort::disconnect (): invalid (null) port") << endmsg;
- return -1;
- }
-
- if (!is_connected (port)) {
- PBD::error << _("ASIOBackendPort::disconnect (): ports are not connected:")
- << " (" << name () << ") -> (" << port->name () << ")"
- << endmsg;
- return -1;
- }
- _disconnect (port, true);
- return 0;
-}
-
-void ASIOBackendPort::_disconnect (ASIOBackendPort *port, bool callback)
-{
- std::vector<ASIOBackendPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
-
- assert (it != _connections.end ());
-
- _connections.erase (it);
-
- if (callback) {
- port->_disconnect (this, false);
- _osx_backend.port_connect_callback (name(), port->name(), false);
- }
-}
-
-
-void ASIOBackendPort::disconnect_all ()
-{
- while (!_connections.empty ()) {
- _connections.back ()->_disconnect (this, false);
- _osx_backend.port_connect_callback (name(), _connections.back ()->name(), false);
- _connections.pop_back ();
- }
-}
-
-bool
-ASIOBackendPort::is_connected (const ASIOBackendPort *port) const
-{
- return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
-}
-
-bool ASIOBackendPort::is_physically_connected () const
-{
- for (std::vector<ASIOBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
- if ((*it)->is_physical ()) {
- return true;
- }
- }
- return false;
-}
-
-/******************************************************************************/
-
-ASIOPort::ASIOPort (ASIOBackend &b, const std::string& name, PortFlags flags)
- : ASIOBackendPort (b, name, flags)
-{
- memset (_buffer, 0, sizeof (_buffer));
- mlock(_buffer, sizeof (_buffer));
-}
-
-ASIOPort::~ASIOPort () { }
-
-void* ASIOPort::get_buffer (pframes_t n_samples)
-{
- if (is_input ()) {
- std::vector<ASIOBackendPort*>::const_iterator it = get_connections ().begin ();
- if (it == get_connections ().end ()) {
- memset (_buffer, 0, n_samples * sizeof (Sample));
- } else {
- ASIOPort const * source = static_cast<const ASIOPort*>(*it);
- assert (source && source->is_output ());
- memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
- while (++it != get_connections ().end ()) {
- source = static_cast<const ASIOPort*>(*it);
- assert (source && source->is_output ());
- Sample* dst = buffer ();
- const Sample* src = source->const_buffer ();
- for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
- *dst += *src;
- }
- }
- }
- }
- return _buffer;
-}
-
-
-WindowsMidiPort::WindowsMidiPort (ASIOBackend &b, const std::string& name, PortFlags flags)
- : ASIOBackendPort (b, name, flags)
- , _n_periods (1)
- , _bufperiod (0)
-{
- _buffer[0].clear ();
- _buffer[1].clear ();
-}
-
-WindowsMidiPort::~WindowsMidiPort () { }
-
-struct MidiEventSorter {
- bool operator() (const boost::shared_ptr<WindowsMidiEvent>& a, const boost::shared_ptr<WindowsMidiEvent>& b) {
- return *a < *b;
- }
-};
-
-void* WindowsMidiPort::get_buffer (pframes_t /* nframes */)
-{
- if (is_input ()) {
- (_buffer[_bufperiod]).clear ();
- for (std::vector<ASIOBackendPort*>::const_iterator i = get_connections ().begin ();
- i != get_connections ().end ();
- ++i) {
- const WindowsMidiBuffer * src = static_cast<const WindowsMidiPort*>(*i)->const_buffer ();
- for (WindowsMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
- (_buffer[_bufperiod]).push_back (boost::shared_ptr<WindowsMidiEvent>(new WindowsMidiEvent (**it)));
- }
- }
- std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
- }
- return &(_buffer[_bufperiod]);
-}
-
-WindowsMidiEvent::WindowsMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
- : _size (size)
- , _timestamp (timestamp)
- , _data (0)
-{
- if (size > 0) {
- _data = (uint8_t*) malloc (size);
- memcpy (_data, data, size);
- }
-}
-
-WindowsMidiEvent::WindowsMidiEvent (const WindowsMidiEvent& other)
- : _size (other.size ())
- , _timestamp (other.timestamp ())
- , _data (0)
-{
- if (other.size () && other.const_data ()) {
- _data = (uint8_t*) malloc (other.size ());
- memcpy (_data, other.const_data (), other.size ());
- }
-};
-
-WindowsMidiEvent::~WindowsMidiEvent () {
- free (_data);
-};
+++ /dev/null
-/*
- * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
- * Copyright (C) 2013 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
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __libbackend_asio_backend_h__
-#define __libbackend_asio_backend_h__
-
-#include <string>
-#include <vector>
-#include <map>
-#include <set>
-
-#include <stdint.h>
-#include <pthread.h>
-
-#include <boost/shared_ptr.hpp>
-
-#include "ardour/audio_backend.h"
-#include "ardour/types.h"
-
-namespace ARDOUR {
-
-class ASIOBackend;
-
-class WindowsMidiEvent {
- public:
- WindowsMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size);
- WindowsMidiEvent (const WindowsMidiEvent& other);
- ~WindowsMidiEvent ();
- size_t size () const { return _size; };
- pframes_t timestamp () const { return _timestamp; };
- const unsigned char* const_data () const { return _data; };
- unsigned char* data () { return _data; };
- bool operator< (const WindowsMidiEvent &other) const { return timestamp () < other.timestamp (); };
- private:
- size_t _size;
- pframes_t _timestamp;
- uint8_t *_data;
-};
-
-typedef std::vector<boost::shared_ptr<WindowsMidiEvent> > WindowsMidiBuffer;
-
-class ASIOBackendPort {
- protected:
- ASIOBackendPort (ASIOBackend &b, const std::string&, PortFlags);
- public:
- virtual ~ASIOBackendPort ();
-
- const std::string& name () const { return _name; }
- const std::string& pretty_name () const { return _pretty_name; }
- PortFlags flags () const { return _flags; }
-
- int set_name (const std::string &name) { _name = name; return 0; }
- int set_pretty_name (const std::string &name) { _pretty_name = name; return 0; }
-
- virtual DataType type () const = 0;
-
- bool is_input () const { return flags () & IsInput; }
- bool is_output () const { return flags () & IsOutput; }
- bool is_physical () const { return flags () & IsPhysical; }
- bool is_terminal () const { return flags () & IsTerminal; }
- bool is_connected () const { return _connections.size () != 0; }
- bool is_connected (const ASIOBackendPort *port) const;
- bool is_physically_connected () const;
-
- const std::vector<ASIOBackendPort *>& get_connections () const { return _connections; }
-
- int connect (ASIOBackendPort *port);
- int disconnect (ASIOBackendPort *port);
- void disconnect_all ();
-
- virtual void* get_buffer (pframes_t nframes) = 0;
-
- const LatencyRange latency_range (bool for_playback) const
- {
- return for_playback ? _playback_latency_range : _capture_latency_range;
- }
-
- void set_latency_range (const LatencyRange &latency_range, bool for_playback)
- {
- if (for_playback)
- {
- _playback_latency_range = latency_range;
- }
- else
- {
- _capture_latency_range = latency_range;
- }
- }
-
- private:
- ASIOBackend &_osx_backend;
- std::string _name;
- std::string _pretty_name;
- const PortFlags _flags;
- LatencyRange _capture_latency_range;
- LatencyRange _playback_latency_range;
- std::vector<ASIOBackendPort*> _connections;
-
- void _connect (ASIOBackendPort* , bool);
- void _disconnect (ASIOBackendPort* , bool);
-
-}; // class ASIOBackendPort
-
-class ASIOPort : public ASIOBackendPort {
- public:
- ASIOPort (ASIOBackend &b, const std::string&, PortFlags);
- ~ASIOPort ();
-
- DataType type () const { return DataType::AUDIO; };
-
- Sample* buffer () { return _buffer; }
- const Sample* const_buffer () const { return _buffer; }
- void* get_buffer (pframes_t nframes);
-
- private:
- Sample _buffer[8192];
-}; // class ASIOPort
-
-class WindowsMidiPort : public ASIOBackendPort {
- public:
- WindowsMidiPort (ASIOBackend &b, const std::string&, PortFlags);
- ~WindowsMidiPort ();
-
- DataType type () const { return DataType::MIDI; };
-
- void* get_buffer (pframes_t nframes);
- const WindowsMidiBuffer * const_buffer () const { return & _buffer[_bufperiod]; }
-
- void next_period() { if (_n_periods > 1) { get_buffer(0); _bufperiod = (_bufperiod + 1) % _n_periods; } }
- void set_n_periods(int n) { if (n > 0 && n < 3) { _n_periods = n; } }
-
- private:
- WindowsMidiBuffer _buffer[2];
- int _n_periods;
- int _bufperiod;
-}; // class WindowsMidiPort
-
-class ASIOBackend : public AudioBackend {
- friend class ASIOBackendPort;
- public:
- ASIOBackend (AudioEngine& e, AudioBackendInfo& info);
- ~ASIOBackend ();
-
- /* AUDIOBACKEND API */
-
- std::string name () const;
- bool is_realtime () const;
-
- std::vector<DeviceStatus> enumerate_devices () const;
- std::vector<float> available_sample_rates (const std::string& device) const;
- std::vector<uint32_t> available_buffer_sizes (const std::string& device) const;
- uint32_t available_input_channel_count (const std::string& device) const;
- uint32_t available_output_channel_count (const std::string& device) const;
-
- bool can_change_sample_rate_when_running () const;
- bool can_change_buffer_size_when_running () const;
-
- int set_device_name (const std::string&);
- int set_sample_rate (float);
- int set_buffer_size (uint32_t);
- int set_interleaved (bool yn);
- int set_input_channels (uint32_t);
- int set_output_channels (uint32_t);
- int set_systemic_input_latency (uint32_t);
- int set_systemic_output_latency (uint32_t);
- int set_systemic_midi_input_latency (std::string const, uint32_t) { return 0; }
- int set_systemic_midi_output_latency (std::string const, uint32_t) { return 0; }
-
- int reset_device () { return 0; };
-
- /* Retrieving parameters */
- std::string device_name () const;
- float sample_rate () const;
- uint32_t buffer_size () const;
- bool interleaved () const;
- uint32_t input_channels () const;
- uint32_t output_channels () const;
- uint32_t systemic_input_latency () const;
- uint32_t systemic_output_latency () const;
- uint32_t systemic_midi_input_latency (std::string const) const { return 0; }
- uint32_t systemic_midi_output_latency (std::string const) const { return 0; }
-
- bool can_set_systemic_midi_latencies () const { return false; /* TODO */}
-
- /* External control app - TODO */
- std::string control_app_name () const { return std::string (); /* return std::string ("Windows"); */ }
- void launch_control_app ();
-
- /* MIDI */
- std::vector<std::string> enumerate_midi_options () const;
- int set_midi_option (const std::string&);
- std::string midi_option () const;
-
- std::vector<DeviceStatus> enumerate_midi_devices () const {
- return std::vector<AudioBackend::DeviceStatus> ();
- }
- int set_midi_device_enabled (std::string const, bool) {
- return true;
- }
- bool midi_device_enabled (std::string const) const {
- return false;
- }
-
- // really private, but needing static access:
- int process_callback(uint32_t, uint64_t);
- void error_callback();
- void xrun_callback();
- void buffer_size_callback();
- void sample_rate_callback();
- void hw_changed_callback();
-
- protected:
- /* State Control */
- int _start (bool for_latency_measurement);
- public:
- int stop ();
- int freewheel (bool);
- float dsp_load () const;
- size_t raw_buffer_size (DataType t);
-
- /* Process time */
- framepos_t sample_time ();
- framepos_t sample_time_at_cycle_start ();
- pframes_t samples_since_cycle_start ();
-
- int create_process_thread (boost::function<void()> func);
- int join_process_threads ();
- bool in_process_thread ();
- uint32_t process_thread_count ();
-
- void update_latencies ();
-
- /* PORTENGINE API */
-
- void* private_handle () const;
- const std::string& my_name () const;
- bool available () const;
- uint32_t port_name_size () const;
-
- int set_port_name (PortHandle, const std::string&);
- std::string get_port_name (PortHandle) const;
- PortHandle get_port_by_name (const std::string&) const;
- int get_port_property (PortHandle, const std::string& key, std::string& value, std::string& type) const;
-
- int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>&) const;
-
- DataType port_data_type (PortHandle) const;
-
- PortHandle register_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
- void unregister_port (PortHandle);
-
- int connect (const std::string& src, const std::string& dst);
- int disconnect (const std::string& src, const std::string& dst);
- int connect (PortHandle, const std::string&);
- int disconnect (PortHandle, const std::string&);
- int disconnect_all (PortHandle);
-
- bool connected (PortHandle, bool process_callback_safe);
- bool connected_to (PortHandle, const std::string&, bool process_callback_safe);
- bool physically_connected (PortHandle, bool process_callback_safe);
- int get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
-
- /* MIDI */
- int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
- int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
- uint32_t get_midi_event_count (void* port_buffer);
- void midi_clear (void* port_buffer);
-
- /* Monitoring */
-
- bool can_monitor_input () const;
- int request_input_monitoring (PortHandle, bool);
- int ensure_input_monitoring (PortHandle, bool);
- bool monitoring_input (PortHandle);
-
- /* Latency management */
-
- void set_latency_range (PortHandle, bool for_playback, LatencyRange);
- LatencyRange get_latency_range (PortHandle, bool for_playback);
-
- /* Discovering physical ports */
-
- bool port_is_physical (PortHandle) const;
- void get_physical_outputs (DataType type, std::vector<std::string>&);
- void get_physical_inputs (DataType type, std::vector<std::string>&);
- ChanCount n_physical_outputs () const;
- ChanCount n_physical_inputs () const;
-
- /* Getting access to the data buffer for a port */
-
- void* get_buffer (PortHandle, pframes_t);
-
- void* freewheel_thread ();
- void pre_process ();
-
- private:
- std::string _instance_name;
- //ASIOPCM *_pcmio; // TODO
- //WindowsMidiIo *_midiio; // TODO
-
- bool _run; /* keep going or stop, ardour thread */
- bool _active_cb; /* is running, asio callback */
- bool _active_fw; /* is running, freewheel thread */
- bool _preinit;
- bool _freewheeling;
- bool _freewheel;
- bool _freewheel_ack;
- bool _reinit_thread_callback;
- bool _measure_latency;
-
- uint64_t _last_process_start;
-
- pthread_mutex_t _process_callback_mutex;
-
- pthread_mutex_t _freewheel_mutex;
- pthread_cond_t _freewheel_signal;
-
- static std::vector<std::string> _midi_options;
- static std::vector<AudioBackend::DeviceStatus> _audio_device_status;
- static std::vector<AudioBackend::DeviceStatus> _midi_device_status;
-
- mutable std::string _audio_device;
- std::string _midi_driver_option;
-
- /* audio settings */
- float _samplerate;
- size_t _samples_per_period;
- static size_t _max_buffer_size;
-
- uint32_t _n_inputs;
- uint32_t _n_outputs;
-
- uint32_t _systemic_audio_input_latency;
- uint32_t _systemic_audio_output_latency;
-
- /* processing */
- float _dsp_load;
- uint64_t _processed_samples;
-
- pthread_t _main_thread;
- pthread_t _freeewheel_thread;
-
- /* process threads */
- static void* asio_process_thread (void *);
- std::vector<pthread_t> _threads;
-
- struct ThreadData {
- ASIOBackend* engine;
- boost::function<void ()> f;
- size_t stacksize;
-
- ThreadData (ASIOBackend* e, boost::function<void ()> fp, size_t stacksz)
- : engine (e) , f (fp) , stacksize (stacksz) {}
- };
-
- /* port engine */
- PortHandle add_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
- int register_system_audio_ports ();
- void unregister_ports (bool system_only = false);
-
- std::vector<ASIOBackendPort *> _ports;
- std::vector<ASIOBackendPort *> _system_inputs;
- std::vector<ASIOBackendPort *> _system_outputs;
- std::vector<ASIOBackendPort *> _system_midi_in;
- std::vector<ASIOBackendPort *> _system_midi_out;
-
- struct PortConnectData {
- std::string a;
- std::string b;
- bool c;
-
- PortConnectData (const std::string& a, const std::string& b, bool c)
- : a (a) , b (b) , c (c) {}
- };
-
- std::vector<PortConnectData *> _port_connection_queue;
- pthread_mutex_t _port_callback_mutex;
- bool _port_change_flag;
-
- void port_connect_callback (const std::string& a, const std::string& b, bool conn) {
- pthread_mutex_lock (&_port_callback_mutex);
- _port_connection_queue.push_back(new PortConnectData(a, b, conn));
- pthread_mutex_unlock (&_port_callback_mutex);
- }
-
- void port_connect_add_remove_callback () {
- pthread_mutex_lock (&_port_callback_mutex);
- _port_change_flag = true;
- pthread_mutex_unlock (&_port_callback_mutex);
- }
-
- bool valid_port (PortHandle port) const {
- return std::find (_ports.begin (), _ports.end (), (ASIOBackendPort*)port) != _ports.end ();
- }
-
- ASIOBackendPort * find_port (const std::string& port_name) const {
- for (std::vector<ASIOBackendPort*>::const_iterator it = _ports.begin (); it != _ports.end (); ++it) {
- if ((*it)->name () == port_name) {
- return *it;
- }
- }
- return NULL;
- }
-
- ASIOBackendPort * find_port_in (std::vector<ASIOBackendPort *> plist, const std::string& port_name) const {
- for (std::vector<ASIOBackendPort*>::const_iterator it = plist.begin (); it != plist.end (); ++it) {
- if ((*it)->name () == port_name) {
- return *it;
- }
- }
- return NULL;
- }
-
-}; // class ASIOBackend
-
-} // namespace
-
-#endif /* __libbackend_asio_backend_h__ */
projects / ardour.git / commitdiff