From f6f64d3f81d2d38301fd921c8e094b648f74a5c5 Mon Sep 17 00:00:00 2001 From: Robin Gareus Date: Thu, 5 Mar 2015 06:22:33 +0100 Subject: get started on coreaudio/midi backend --- gtk2_ardour/ardev_common.sh.in | 2 +- libs/backends/coreaudio/coreaudio_backend.cc | 1791 ++++++++++++++++++++++++++ libs/backends/coreaudio/coreaudio_backend.h | 428 ++++++ libs/backends/coreaudio/coreaudio_pcmio.cc | 483 +++++++ libs/backends/coreaudio/coreaudio_pcmio.h | 105 ++ libs/backends/coreaudio/coremidi_io.cc | 275 ++++ libs/backends/coreaudio/coremidi_io.h | 103 ++ libs/backends/coreaudio/rt_thread.h | 55 + libs/backends/coreaudio/wscript | 33 + 9 files changed, 3274 insertions(+), 1 deletion(-) create mode 100644 libs/backends/coreaudio/coreaudio_backend.cc create mode 100644 libs/backends/coreaudio/coreaudio_backend.h create mode 100644 libs/backends/coreaudio/coreaudio_pcmio.cc create mode 100644 libs/backends/coreaudio/coreaudio_pcmio.h create mode 100644 libs/backends/coreaudio/coremidi_io.cc create mode 100644 libs/backends/coreaudio/coremidi_io.h create mode 100644 libs/backends/coreaudio/rt_thread.h create mode 100644 libs/backends/coreaudio/wscript diff --git a/gtk2_ardour/ardev_common.sh.in b/gtk2_ardour/ardev_common.sh.in index 57e9686a32..01426756d8 100644 --- a/gtk2_ardour/ardev_common.sh.in +++ b/gtk2_ardour/ardev_common.sh.in @@ -17,7 +17,7 @@ export ARDOUR_DATA_PATH=$TOP:$TOP/build:$TOP/gtk2_ardour:$TOP/build/gtk2_ardour: export ARDOUR_MIDIMAPS_PATH=$TOP/midi_maps:. export ARDOUR_MCP_PATH=$TOP/mcp:. export ARDOUR_EXPORT_FORMATS_PATH=$TOP/export:. -export ARDOUR_BACKEND_PATH=$libs/backends/jack:$libs/backends/wavesaudio:$libs/backends/dummy:$libs/backends/alsa +export ARDOUR_BACKEND_PATH=$libs/backends/jack:$libs/backends/wavesaudio:$libs/backends/dummy:$libs/backends/alsa:$libs/backends/coreaudio export ARDOUR_TEST_PATH=$TOP/libs/ardour/test/data export PBD_TEST_PATH=$TOP/libs/pbd/test export EVORAL_TEST_PATH=$TOP/libs/evoral/test/testdata diff --git a/libs/backends/coreaudio/coreaudio_backend.cc b/libs/backends/coreaudio/coreaudio_backend.cc new file mode 100644 index 0000000000..80f532c313 --- /dev/null +++ b/libs/backends/coreaudio/coreaudio_backend.cc @@ -0,0 +1,1791 @@ +/* + * Copyright (C) 2014 Robin Gareus + * 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 +#include +#include + +#include + +#include "coreaudio_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 CoreAudioBackend::_max_buffer_size = 8192; +std::vector CoreAudioBackend::_midi_options; +std::vector CoreAudioBackend::_audio_device_status; +std::vector CoreAudioBackend::_midi_device_status; + +CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info) + : AudioBackend (e, info) + , _run (false) + , _active_ca (false) + , _active_fw (false) + , _freewheeling (false) + , _freewheel (false) + , _freewheel_ack (false) + , _reinit_thread_callback (false) + , _measure_latency (false) + , _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); + + _pcmio = new CoreAudioPCM (); + _midiio = new CoreMidiIo (); + + _pcmio->discover(); + _midiio->discover(); +} + +CoreAudioBackend::~CoreAudioBackend () +{ + delete _pcmio; _pcmio = 0; + delete _midiio; _midiio = 0; + pthread_mutex_destroy (&_port_callback_mutex); + pthread_mutex_destroy (&_process_callback_mutex); +} + +/* AUDIOBACKEND API */ + +std::string +CoreAudioBackend::name () const +{ + // XXX avoid name -conflict w/waves + return X_("CoreAudio2"); +} + +bool +CoreAudioBackend::is_realtime () const +{ + return true; +} + +std::vector +CoreAudioBackend::enumerate_devices () const +{ + _audio_device_status.clear(); + std::map devices; + _pcmio->device_list(devices); + + for (std::map::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)); + } + return _audio_device_status; +} + +std::vector +CoreAudioBackend::available_sample_rates (const std::string&) const +{ + // TODO ask _pcmio for available rates + std::vector sr; + sr.push_back (44100.0); + sr.push_back (48000.0); + return sr; +} + +std::vector +CoreAudioBackend::available_buffer_sizes (const std::string&) const +{ + // TODO ask _pcmio for available rates + std::vector bs; + bs.push_back (64); + bs.push_back (128); + bs.push_back (256); + bs.push_back (512); + bs.push_back (1024); + bs.push_back (2048); + bs.push_back (4096); + return bs; +} + +uint32_t +CoreAudioBackend::available_input_channel_count (const std::string&) const +{ + return 128; // TODO query current device +} + +uint32_t +CoreAudioBackend::available_output_channel_count (const std::string&) const +{ + return 128; // TODO query current device +} + +bool +CoreAudioBackend::can_change_sample_rate_when_running () const +{ + return false; +} + +bool +CoreAudioBackend::can_change_buffer_size_when_running () const +{ + return false; +} + +int +CoreAudioBackend::set_device_name (const std::string& d) +{ + _audio_device = d; + return 0; +} + +int +CoreAudioBackend::set_sample_rate (float sr) +{ + if (sr <= 0) { return -1; } + _samplerate = sr; + engine.sample_rate_change (sr); + return 0; +} + +int +CoreAudioBackend::set_buffer_size (uint32_t bs) +{ + if (bs <= 0 || bs >= _max_buffer_size) { + return -1; + } + _samples_per_period = bs; + engine.buffer_size_change (bs); + return 0; +} + +int +CoreAudioBackend::set_interleaved (bool yn) +{ + if (!yn) { return 0; } + return -1; +} + +int +CoreAudioBackend::set_input_channels (uint32_t cc) +{ + _n_inputs = cc; + return 0; +} + +int +CoreAudioBackend::set_output_channels (uint32_t cc) +{ + _n_outputs = cc; + return 0; +} + +int +CoreAudioBackend::set_systemic_input_latency (uint32_t sl) +{ + _systemic_audio_input_latency = sl; + return 0; +} + +int +CoreAudioBackend::set_systemic_output_latency (uint32_t sl) +{ + _systemic_audio_output_latency = sl; + return 0; +} + +int +CoreAudioBackend::set_systemic_midi_input_latency (std::string const device, uint32_t sl) +{ + struct CoreMidiDeviceInfo * nfo = midi_device_info(device); + if (!nfo) return -1; + nfo->systemic_input_latency = sl; + return 0; +} + +int +CoreAudioBackend::set_systemic_midi_output_latency (std::string const device, uint32_t sl) +{ + struct CoreMidiDeviceInfo * nfo = midi_device_info(device); + if (!nfo) return -1; + nfo->systemic_output_latency = sl; + return 0; +} + +/* Retrieving parameters */ +std::string +CoreAudioBackend::device_name () const +{ + return _audio_device; +} + +float +CoreAudioBackend::sample_rate () const +{ + return _samplerate; +} + +uint32_t +CoreAudioBackend::buffer_size () const +{ + return _samples_per_period; +} + +bool +CoreAudioBackend::interleaved () const +{ + return false; +} + +uint32_t +CoreAudioBackend::input_channels () const +{ + return _n_inputs; +} + +uint32_t +CoreAudioBackend::output_channels () const +{ + return _n_outputs; +} + +uint32_t +CoreAudioBackend::systemic_input_latency () const +{ + return _systemic_audio_input_latency; +} + +uint32_t +CoreAudioBackend::systemic_output_latency () const +{ + return _systemic_audio_output_latency; +} + +uint32_t +CoreAudioBackend::systemic_midi_input_latency (std::string const device) const +{ + struct CoreMidiDeviceInfo * nfo = midi_device_info(device); + if (!nfo) return 0; + return nfo->systemic_input_latency; +} + +uint32_t +CoreAudioBackend::systemic_midi_output_latency (std::string const device) const +{ + struct CoreMidiDeviceInfo * nfo = midi_device_info(device); + if (!nfo) return 0; + return nfo->systemic_output_latency; +} + +/* MIDI */ +struct CoreAudioBackend::CoreMidiDeviceInfo * +CoreAudioBackend::midi_device_info(std::string const name) const { + return 0; +} + +std::vector +CoreAudioBackend::enumerate_midi_options () const +{ + if (_midi_options.empty()) { + _midi_options.push_back (_("CoreMidi")); + _midi_options.push_back (_("None")); + } + return _midi_options; +} + +std::vector +CoreAudioBackend::enumerate_midi_devices () const +{ + _midi_device_status.clear(); + std::map devices; + //_midi_device_status.push_back (DeviceStatus (_("CoreMidi"), true)); + return _midi_device_status; +} + +int +CoreAudioBackend::set_midi_option (const std::string& opt) +{ + if (opt != _("None") && opt != _("CoreMidi")) { + return -1; + } + _midi_driver_option = opt; + return 0; +} + +std::string +CoreAudioBackend::midi_option () const +{ + return _midi_driver_option; +} + +int +CoreAudioBackend::set_midi_device_enabled (std::string const device, bool enable) +{ + struct CoreMidiDeviceInfo * nfo = midi_device_info(device); + if (!nfo) return -1; + nfo->enabled = enable; + return 0; +} + +bool +CoreAudioBackend::midi_device_enabled (std::string const device) const +{ + struct CoreMidiDeviceInfo * nfo = midi_device_info(device); + if (!nfo) return false; + return nfo->enabled; +} + +/* State Control */ + +static void * pthread_freewheel (void *arg) +{ + CoreAudioBackend *d = static_cast(arg); + d->freewheel_thread (); + pthread_exit (0); + return 0; +} + +static int process_callback_ptr (void *arg) +{ + CoreAudioBackend *d = static_cast (arg); + return d->process_callback(); +} + +static void error_callback_ptr (void *arg) +{ + CoreAudioBackend *d = static_cast (arg); + d->error_callback(); +} + +static void midi_port_change (void *arg) +{ + CoreAudioBackend *d = static_cast(arg); + d->coremidi_rediscover (); +} + + +int +CoreAudioBackend::_start (bool for_latency_measurement) +{ + if ((!_active_ca || !_active_fw) && _run) { + // recover from 'halted', reap threads + stop(); + } + + if (_active_ca || _active_fw || _run) { + PBD::error << _("CoreAudioBackend: already active.") << endmsg; + return -1; + } + + if (_ports.size()) { + PBD::warning << _("CoreAudioBackend: 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(); + } + +#if 0 + assert(_rmidi_in.size() == 0); + assert(_rmidi_out.size() == 0); +#endif + + uint32_t device_id = UINT32_MAX; + std::map devices; + _pcmio->device_list(devices); + + for (std::map::const_iterator i = devices.begin (); i != devices.end(); ++i) { + if (i->second == _audio_device) { + device_id = i->first; + break; + } + } + + assert(_active_ca == false); + assert(_active_fw == false); + + _freewheel_ack = false; + _reinit_thread_callback = true; + + _pcmio->set_error_callback (error_callback_ptr, this); + _pcmio->pcm_start (device_id, device_id, _samplerate, _samples_per_period, process_callback_ptr, this); + + switch (_pcmio->state ()) { + case 0: /* OK */ break; + case -1: PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg; break; + default: PBD::error << _("CoreAudioBackend: 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::warning << _("CoreAudioBackend: 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::warning << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg; + } + +#if 0 // TODO + if (_pcmio->sample_per_period() != _samples_per_period) { + _samples_per_period = _pcmio->sample_per_period(); + PBD::warning << _("CoreAudioBackend: samples per period does not match.") << endmsg; + } + + if (_pcmio->samplerate() != _samplerate) { + _samplerate = _pcmio->samplerate(); + engine.sample_rate_change (_samplerate); + PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg; + } +#endif + + _measure_latency = for_latency_measurement; + + _preinit = true; + _run = true; + _port_change_flag = false; + + printf("MIDI: %s\n", _midi_driver_option.c_str()); + + if (_midi_driver_option == _("CoreMidi")) { + //register_system_midi_ports(); + _midiio->setPortChangedCallback(midi_port_change, this); + _midiio->discover(); + } + + if (register_system_audio_ports()) { + PBD::error << _("CoreAudioBackend: 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 << _("CoreAudioBackend: Could not re-establish ports.") << endmsg; + _run = false; + return -1; + } + + engine.reconnect_ports (); + + + if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this)) + { + PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg; + delete _pcmio; _pcmio = 0; + _run = false; + return -1; + } + + int timeout = 5000; + while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); } + + if (timeout == 0) { + printf("CoreAudioBackend: failed to start."); + PBD::error << _("CoreAudioBackend: failed to start.") << endmsg; + } + + if (!_active_fw) { + PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg; + printf("CoreAudioBackend: fw .\n"); + _run = false; + _pcmio->pcm_stop(); + unregister_ports(); + _active_ca = false; + _active_fw = false; + return -1; + } + + if (!_active_ca) { + printf("CoreAudioBackend: ca .\n"); + PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg; + stop(); + _run = false; + return -1; + } + _preinit = false; + + return 0; +} + +int +CoreAudioBackend::stop () +{ + void *status; + if (!_run) { + return 0; + } + + _run = false; + _pcmio->pcm_stop(); + _midiio->setPortChangedCallback(NULL, NULL); + + if (pthread_join (_freeewheel_thread, &status)) { + PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg; + return -1; + } + +#if 0 + while (!_rmidi_out.empty ()) { + CoreMidiIO *m = _rmidi_out.back (); + m->stop(); + _rmidi_out.pop_back (); + delete m; + } + while (!_rmidi_in.empty ()) { + CoreMidiIO *m = _rmidi_in.back (); + m->stop(); + _rmidi_in.pop_back (); + delete m; + } +#endif + + unregister_ports(); + + _active_ca = false; + _active_fw = false; // ?? + + return 0; +} + +int +CoreAudioBackend::freewheel (bool onoff) +{ + if (onoff == _freewheeling) { + return 0; + } + _freewheeling = onoff; + return 0; +} + +float +CoreAudioBackend::dsp_load () const +{ + return 100.f * _dsp_load; +} + +size_t +CoreAudioBackend::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 +CoreAudioBackend::sample_time () +{ + return _processed_samples; +} + +framepos_t +CoreAudioBackend::sample_time_at_cycle_start () +{ + return _processed_samples; +} + +pframes_t +CoreAudioBackend::samples_since_cycle_start () +{ + return 0; +} + + +void * +CoreAudioBackend::coreaudio_process_thread (void *arg) +{ + ThreadData* td = reinterpret_cast (arg); + boost::function f = td->f; + delete td; + f (); + return 0; +} + +int +CoreAudioBackend::create_process_thread (boost::function 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, coreaudio_process_thread, td)) { + pthread_attr_init (&attr); + pthread_attr_setstacksize (&attr, stacksize); + if (pthread_create (&thread_id, &attr, coreaudio_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 +CoreAudioBackend::join_process_threads () +{ + int rv = 0; + + for (std::vector::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 +CoreAudioBackend::in_process_thread () +{ + if (pthread_equal (_main_thread, pthread_self()) != 0) { + return true; + } + + for (std::vector::const_iterator i = _threads.begin (); i != _threads.end (); ++i) + { + if (pthread_equal (*i, pthread_self ()) != 0) { + return true; + } + } + return false; +} + +uint32_t +CoreAudioBackend::process_thread_count () +{ + return _threads.size (); +} + +void +CoreAudioBackend::update_latencies () +{ + // trigger latency callback in RT thread (locked graph) + port_connect_add_remove_callback(); +} + +/* PORTENGINE API */ + +void* +CoreAudioBackend::private_handle () const +{ + return NULL; +} + +const std::string& +CoreAudioBackend::my_name () const +{ + return _instance_name; +} + +bool +CoreAudioBackend::available () const +{ + return _run && _active_fw && _active_ca; +} + +uint32_t +CoreAudioBackend::port_name_size () const +{ + return 256; +} + +int +CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name) +{ + if (!valid_port (port)) { + PBD::error << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg; + return -1; + } + return static_cast(port)->set_name (_instance_name + ":" + name); +} + +std::string +CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const +{ + if (!valid_port (port)) { + PBD::error << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg; + return std::string (); + } + return static_cast(port)->name (); +} + +PortEngine::PortHandle +CoreAudioBackend::get_port_by_name (const std::string& name) const +{ + PortHandle port = (PortHandle) find_port (name); + return port; +} + +int +CoreAudioBackend::get_ports ( + const std::string& port_name_pattern, + DataType type, PortFlags flags, + std::vector& 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) { + CoreBackendPort* 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 +CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const +{ + if (!valid_port (port)) { + return DataType::NIL; + } + return static_cast(port)->type (); +} + +PortEngine::PortHandle +CoreAudioBackend::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 +CoreAudioBackend::add_port ( + const std::string& name, + ARDOUR::DataType type, + ARDOUR::PortFlags flags) +{ + assert(name.size ()); + if (find_port (name)) { + PBD::error << _("CoreAudioBackend::register_port: Port already exists:") + << " (" << name << ")" << endmsg; + return 0; + } + CoreBackendPort* port = NULL; + switch (type) { + case DataType::AUDIO: + port = new CoreAudioPort (*this, name, flags); + break; + case DataType::MIDI: + port = new CoreMidiPort (*this, name, flags); + break; + default: + PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg; + return 0; + } + + _ports.push_back (port); + + return port; +} + +void +CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle) +{ + if (!_run) { + return; + } + CoreBackendPort* port = static_cast(port_handle); + std::vector::iterator i = std::find (_ports.begin (), _ports.end (), static_cast(port_handle)); + if (i == _ports.end ()) { + PBD::error << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg; + return; + } + disconnect_all(port_handle); + _ports.erase (i); + delete port; +} + +int +CoreAudioBackend::register_system_audio_ports() +{ + LatencyRange lr; + + // TODO ask _pcmio for port latencies + + const int a_ins = _n_inputs > 0 ? _n_inputs : 2; + const int a_out = _n_outputs > 0 ? _n_outputs : 2; + + /* audio ports */ + lr.min = lr.max = _samples_per_period + (_measure_latency ? 0 : _systemic_audio_input_latency); + for (int i = 1; i <= a_ins; ++i) { + char tmp[64]; + snprintf(tmp, sizeof(tmp), "system:capture_%d", i); + PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast(IsOutput | IsPhysical | IsTerminal)); + if (!p) return -1; + set_latency_range (p, false, lr); + _system_inputs.push_back(static_cast(p)); + } + + lr.min = lr.max = _samples_per_period + (_measure_latency ? 0 : _systemic_audio_output_latency); + for (int i = 1; i <= a_out; ++i) { + char tmp[64]; + snprintf(tmp, sizeof(tmp), "system:playback_%d", i); + PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast(IsInput | IsPhysical | IsTerminal)); + if (!p) return -1; + set_latency_range (p, true, lr); + _system_outputs.push_back(static_cast(p)); + } + return 0; +} + +int +CoreAudioBackend::register_system_midi_ports() +{ + int midi_ins = _system_midi_out.size(); + int midi_outs = _system_midi_in.size(); + + for (uint32_t i = midi_ins; i < _midiio->n_midi_outputs(); ++i) { + char tmp[64]; + snprintf(tmp, sizeof(tmp), "system:midi_playback_%d", ++midi_ins); + PortHandle p = add_port(std::string(tmp), DataType::MIDI, static_cast(IsInput | IsPhysical | IsTerminal)); + if (!p) { + continue; + } + LatencyRange lr; + lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency + set_latency_range (p, false, lr); + //static_cast(p)->set_n_periods(2); + _system_midi_out.push_back(static_cast(p)); + } + + for (uint32_t i = midi_outs; i < _midiio->n_midi_inputs(); ++i) { + char tmp[64]; + snprintf(tmp, sizeof(tmp), "system:midi_capture_%d", ++midi_outs); + PortHandle p = add_port(std::string(tmp), DataType::MIDI, static_cast(IsOutput | IsPhysical | IsTerminal)); + if (!p) { + continue; + } + LatencyRange lr; + lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency + set_latency_range (p, false, lr); + //static_cast(p)->set_n_periods(2); + _system_midi_in.push_back(static_cast(p)); + } + + return 0; +} + +void +CoreAudioBackend::coremidi_rediscover() +{ + if (!_run) { return; } + assert(_midi_driver_option == _("CoreMidi")); + + pthread_mutex_lock (&_process_callback_mutex); + + while (_system_midi_out.size() > _midiio->n_midi_outputs()) { + CoreBackendPort* p = _system_midi_out.back(); + _system_midi_out.pop_back(); + unregister_port(p); + } + + while (_system_midi_in.size() > _midiio->n_midi_inputs()) { + CoreBackendPort* p = _system_midi_in.back(); + _system_midi_in.pop_back(); + unregister_port(p); + } + + register_system_midi_ports(); + + _port_change_flag = true; + _reinit_thread_callback = true; // XXX, rather hook into _pcmio's hardwarePropertyChangeCallback + pthread_mutex_unlock (&_process_callback_mutex); +} + +void +CoreAudioBackend::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 ()) { + CoreBackendPort* 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 +CoreAudioBackend::connect (const std::string& src, const std::string& dst) +{ + CoreBackendPort* src_port = find_port (src); + CoreBackendPort* dst_port = find_port (dst); + + if (!src_port) { + PBD::error << _("CoreAudioBackend::connect: Invalid Source port:") + << " (" << src <<")" << endmsg; + return -1; + } + if (!dst_port) { + PBD::error << _("CoreAudioBackend::connect: Invalid Destination port:") + << " (" << dst <<")" << endmsg; + return -1; + } + return src_port->connect (dst_port); +} + +int +CoreAudioBackend::disconnect (const std::string& src, const std::string& dst) +{ + CoreBackendPort* src_port = find_port (src); + CoreBackendPort* dst_port = find_port (dst); + + if (!src_port || !dst_port) { + PBD::error << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg; + return -1; + } + return src_port->disconnect (dst_port); +} + +int +CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst) +{ + CoreBackendPort* dst_port = find_port (dst); + if (!valid_port (src)) { + PBD::error << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg; + return -1; + } + if (!dst_port) { + PBD::error << _("CoreAudioBackend::connect: Invalid Destination Port") + << " (" << dst << ")" << endmsg; + return -1; + } + return static_cast(src)->connect (dst_port); +} + +int +CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst) +{ + CoreBackendPort* dst_port = find_port (dst); + if (!valid_port (src) || !dst_port) { + PBD::error << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg; + return -1; + } + return static_cast(src)->disconnect (dst_port); +} + +int +CoreAudioBackend::disconnect_all (PortEngine::PortHandle port) +{ + if (!valid_port (port)) { + PBD::error << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg; + return -1; + } + static_cast(port)->disconnect_all (); + return 0; +} + +bool +CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/) +{ + if (!valid_port (port)) { + PBD::error << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg; + return false; + } + return static_cast(port)->is_connected (); +} + +bool +CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/) +{ + CoreBackendPort* dst_port = find_port (dst); + if (!valid_port (src) || !dst_port) { + PBD::error << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg; + return false; + } + return static_cast(src)->is_connected (dst_port); +} + +bool +CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/) +{ + if (!valid_port (port)) { + PBD::error << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg; + return false; + } + return static_cast(port)->is_physically_connected (); +} + +int +CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector& names, bool /*process_callback_safe*/) +{ + if (!valid_port (port)) { + PBD::error << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg; + return -1; + } + + assert (0 == names.size ()); + + const std::vector& connected_ports = static_cast(port)->get_connections (); + + for (std::vector::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) { + names.push_back ((*i)->name ()); + } + + return (int)names.size (); +} + +/* MIDI */ +int +CoreAudioBackend::midi_event_get ( + pframes_t& timestamp, + size_t& size, uint8_t** buf, void* port_buffer, + uint32_t event_index) +{ + assert (buf && port_buffer); + CoreMidiBuffer& source = * static_cast(port_buffer); + if (event_index >= source.size ()) { + return -1; + } + CoreMidiEvent * const event = source[event_index].get (); + + timestamp = event->timestamp (); + size = event->size (); + *buf = event->data (); + return 0; +} + +int +CoreAudioBackend::midi_event_put ( + void* port_buffer, + pframes_t timestamp, + const uint8_t* buffer, size_t size) +{ + assert (buffer && port_buffer); + CoreMidiBuffer& dst = * static_cast(port_buffer); + if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) { + fprintf (stderr, "CoreMidiBuffer: it's too late for this event. %d > %d\n", + (pframes_t)dst.back ()->timestamp (), timestamp); + return -1; + } + dst.push_back (boost::shared_ptr(new CoreMidiEvent (timestamp, buffer, size))); + return 0; +} + +uint32_t +CoreAudioBackend::get_midi_event_count (void* port_buffer) +{ + assert (port_buffer); + return static_cast(port_buffer)->size (); +} + +void +CoreAudioBackend::midi_clear (void* port_buffer) +{ + assert (port_buffer); + CoreMidiBuffer * buf = static_cast(port_buffer); + assert (buf); + buf->clear (); +} + +/* Monitoring */ + +bool +CoreAudioBackend::can_monitor_input () const +{ + return false; +} + +int +CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool) +{ + return -1; +} + +int +CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool) +{ + return -1; +} + +bool +CoreAudioBackend::monitoring_input (PortEngine::PortHandle) +{ + return false; +} + +/* Latency management */ + +void +CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range) +{ + if (!valid_port (port)) { + PBD::error << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg; + } + static_cast(port)->set_latency_range (latency_range, for_playback); +} + +LatencyRange +CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback) +{ + if (!valid_port (port)) { + PBD::error << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg; + LatencyRange r; + r.min = 0; + r.max = 0; + return r; + } + return static_cast(port)->latency_range (for_playback); +} + +/* Discovering physical ports */ + +bool +CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const +{ + if (!valid_port (port)) { + PBD::error << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg; + return false; + } + return static_cast(port)->is_physical (); +} + +void +CoreAudioBackend::get_physical_outputs (DataType type, std::vector& port_names) +{ + for (size_t i = 0; i < _ports.size (); ++i) { + CoreBackendPort* port = _ports[i]; + if ((port->type () == type) && port->is_input () && port->is_physical ()) { + port_names.push_back (port->name ()); + } + } +} + +void +CoreAudioBackend::get_physical_inputs (DataType type, std::vector& port_names) +{ + for (size_t i = 0; i < _ports.size (); ++i) { + CoreBackendPort* port = _ports[i]; + if ((port->type () == type) && port->is_output () && port->is_physical ()) { + port_names.push_back (port->name ()); + } + } +} + +ChanCount +CoreAudioBackend::n_physical_outputs () const +{ + int n_midi = 0; + int n_audio = 0; + for (size_t i = 0; i < _ports.size (); ++i) { + CoreBackendPort* 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 +CoreAudioBackend::n_physical_inputs () const +{ + int n_midi = 0; + int n_audio = 0; + for (size_t i = 0; i < _ports.size (); ++i) { + CoreBackendPort* 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* +CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes) +{ + assert (port); + assert (valid_port (port)); + return static_cast(port)->get_buffer (nframes); +} + +void +CoreAudioBackend::post_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 * +CoreAudioBackend::freewheel_thread () +{ + _active_fw = true; + bool first_run = false; + while (_run) { + // check if we should run, + if (_freewheeling != _freewheel) { + if (!_freewheeling) { + // handshake w/ coreaudio + _reinit_thread_callback = true; + _freewheel_ack = false; + } + + engine.freewheel_callback (_freewheeling); + first_run = true; + _freewheel = _freewheeling; + } + + if (!_freewheel || !_freewheel_ack) { + // TODO use a pthread sync/sleep + Glib::usleep(200000); + continue; + } + + if (first_run) { + first_run = false; + _main_thread = pthread_self(); + AudioEngine::thread_init_callback (this); + } + + // Freewheelin' + for (std::vector::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::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) { + static_cast((*it)->get_buffer(0))->clear (); + } + + if (engine.process_callback (_samples_per_period)) { + break; + } + _dsp_load = 1.0; + Glib::usleep (100); // don't hog cpu + + post_process(); + } + + _active_fw = false; + + if (_run && _freewheel) { + engine.halted_callback("CoreAudio Freehweeling aborted."); + } + return 0; +} + +int +CoreAudioBackend::process_callback () +{ + uint32_t i = 0; + uint64_t clock1, clock2; + + _active_ca = true; + + if (_run && _freewheel && !_freewheel_ack) { + _freewheel_ack = true; + } + + if (!_run || _freewheel || _preinit) { + return 1; + } + + if (pthread_mutex_trylock (&_process_callback_mutex)) { + return 1; + } + + if (_reinit_thread_callback || _main_thread != pthread_self()) { + printf("REINIT THREAD\n"); + _reinit_thread_callback = false; + _main_thread = pthread_self(); + AudioEngine::thread_init_callback (this); + + manager.registration_callback(); + manager.graph_order_callback(); + } + + const uint32_t n_samples = _pcmio->n_samples(); + +#if 0 // here in RT callback ?? XXX + if (_samples_per_period != n_samples) { + _samples_per_period = n_samples; + engine.buffer_size_change (_samples_per_period); + // TODO update latencies + } +#endif + + // cycle-length in usec + const int64_t nominal_time = 1e6 * n_samples / _samplerate; + + clock1 = g_get_monotonic_time(); + + // TODO get midi + i=0; + for (std::vector::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) { + CoreMidiBuffer* mbuf = static_cast((*it)->get_buffer(0)); + mbuf->clear(); + uint64_t time_ns; + uint8_t data[64]; // match MaxAlsaEventSize in alsa_rawmidi.cc + 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); + } + } + + /* get audio */ + i = 0; + for (std::vector::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) { + _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples); + } + + /* clear output buffers */ + for (std::vector::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) { + memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample)); + } + + _midiio->start_cycle(); + + if (engine.process_callback (n_samples)) { + fprintf(stderr, "ENGINE PROCESS ERROR\n"); + //_pcmio->pcm_stop (); + _active_ca = false; + pthread_mutex_unlock (&_process_callback_mutex); + return -1; + } + + // mixdown midi + for (std::vector::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) { + //static_cast(*it)->next_period(); + static_cast(*it)->get_buffer(0); + } + // queue outgoing midi + i = 0; + for (std::vector::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) { + const CoreMidiBuffer *src = static_cast(*it)->const_buffer(); + for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) { + _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size()); + } + } + + /* write back audio */ + i = 0; + for (std::vector::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); + } + + _processed_samples += n_samples; + + // calc DSP load. + + clock2 = g_get_monotonic_time(); + const int64_t elapsed_time = clock2 - clock1; + _dsp_load = elapsed_time / (float) nominal_time; + + //engine.Xrun (); // TODO, if any + + // port-connection change + post_process(); + pthread_mutex_unlock (&_process_callback_mutex); + return 0; +} + +void +CoreAudioBackend::error_callback () +{ + printf("ERROR CALLBACK\n"); + _pcmio->set_error_callback (NULL, NULL); + engine.halted_callback("CoreAudio Process aborted."); +} + + +/******************************************************************************/ + +static boost::shared_ptr _instance; + +static boost::shared_ptr 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 = { + "CoreAudio2", + instantiate, + deinstantiate, + backend_factory, + already_configured, + available +}; + +static boost::shared_ptr +backend_factory (AudioEngine& e) +{ + if (!_instance) { + _instance.reset (new CoreAudioBackend (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; +} + + +/******************************************************************************/ +CoreBackendPort::CoreBackendPort (CoreAudioBackend &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; +} + +CoreBackendPort::~CoreBackendPort () { + disconnect_all (); +} + + +int CoreBackendPort::connect (CoreBackendPort *port) +{ + if (!port) { + PBD::error << _("CoreBackendPort::connect (): invalid (null) port") << endmsg; + return -1; + } + + if (type () != port->type ()) { + PBD::error << _("CoreBackendPort::connect (): wrong port-type") << endmsg; + return -1; + } + + if (is_output () && port->is_output ()) { + PBD::error << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg; + return -1; + } + + if (is_input () && port->is_input ()) { + PBD::error << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg; + return -1; + } + + if (this == port) { + PBD::error << _("CoreBackendPort::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 << _("CoreBackendPort::connect (): ports are already connected:") + << " (" << name () << ") -> (" << port->name () << ")" + << endmsg; +#endif + return -1; + } + + _connect (port, true); + return 0; +} + + +void CoreBackendPort::_connect (CoreBackendPort *port, bool callback) +{ + _connections.push_back (port); + if (callback) { + port->_connect (this, false); + _osx_backend.port_connect_callback (name(), port->name(), true); + } +} + +int CoreBackendPort::disconnect (CoreBackendPort *port) +{ + if (!port) { + PBD::error << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg; + return -1; + } + + if (!is_connected (port)) { + PBD::error << _("CoreBackendPort::disconnect (): ports are not connected:") + << " (" << name () << ") -> (" << port->name () << ")" + << endmsg; + return -1; + } + _disconnect (port, true); + return 0; +} + +void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback) +{ + std::vector::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 CoreBackendPort::disconnect_all () +{ + while (!_connections.empty ()) { + _connections.back ()->_disconnect (this, false); + _osx_backend.port_connect_callback (name(), _connections.back ()->name(), false); + _connections.pop_back (); + } +} + +bool +CoreBackendPort::is_connected (const CoreBackendPort *port) const +{ + return std::find (_connections.begin (), _connections.end (), port) != _connections.end (); +} + +bool CoreBackendPort::is_physically_connected () const +{ + for (std::vector::const_iterator it = _connections.begin (); it != _connections.end (); ++it) { + if ((*it)->is_physical ()) { + return true; + } + } + return false; +} + +/******************************************************************************/ + +CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags) + : CoreBackendPort (b, name, flags) +{ + memset (_buffer, 0, sizeof (_buffer)); + mlock(_buffer, sizeof (_buffer)); +} + +CoreAudioPort::~CoreAudioPort () { } + +void* CoreAudioPort::get_buffer (pframes_t n_samples) +{ + if (is_input ()) { + std::vector::const_iterator it = get_connections ().begin (); + if (it == get_connections ().end ()) { + memset (_buffer, 0, n_samples * sizeof (Sample)); + } else { + CoreAudioPort const * source = static_cast(*it); + assert (source && source->is_output ()); + memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample)); + while (++it != get_connections ().end ()) { + source = static_cast(*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; +} + + +CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags) + : CoreBackendPort (b, name, flags) + , _n_periods (1) + , _bufperiod (0) +{ + _buffer[0].clear (); + _buffer[1].clear (); +} + +CoreMidiPort::~CoreMidiPort () { } + +struct MidiEventSorter { + bool operator() (const boost::shared_ptr& a, const boost::shared_ptr& b) { + return *a < *b; + } +}; + +void* CoreMidiPort::get_buffer (pframes_t /* nframes */) +{ + if (is_input ()) { + (_buffer[_bufperiod]).clear (); + for (std::vector::const_iterator i = get_connections ().begin (); + i != get_connections ().end (); + ++i) { + const CoreMidiBuffer * src = static_cast(*i)->const_buffer (); + for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) { + (_buffer[_bufperiod]).push_back (boost::shared_ptr(new CoreMidiEvent (**it))); + } + } + std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter()); + } + return &(_buffer[_bufperiod]); +} + +CoreMidiEvent::CoreMidiEvent (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); + } +} + +CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& 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 ()); + } +}; + +CoreMidiEvent::~CoreMidiEvent () { + free (_data); +}; diff --git a/libs/backends/coreaudio/coreaudio_backend.h b/libs/backends/coreaudio/coreaudio_backend.h new file mode 100644 index 0000000000..0460e57476 --- /dev/null +++ b/libs/backends/coreaudio/coreaudio_backend.h @@ -0,0 +1,428 @@ +/* + * Copyright (C) 2014 Robin Gareus + * 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_coreaudio_backend_h__ +#define __libbackend_coreaudio_backend_h__ + +#include +#include +#include +#include + +#include +#include + +#include + +#include "ardour/audio_backend.h" +#include "ardour/types.h" + +#include "coreaudio_pcmio.h" +#include "coremidi_io.h" + +namespace ARDOUR { + +class CoreAudioBackend; + +class CoreMidiEvent { + public: + CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size); + CoreMidiEvent (const CoreMidiEvent& other); + ~CoreMidiEvent (); + 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 CoreMidiEvent &other) const { return timestamp () < other.timestamp (); }; + private: + size_t _size; + pframes_t _timestamp; + uint8_t *_data; +}; + +typedef std::vector > CoreMidiBuffer; + +class CoreBackendPort { + protected: + CoreBackendPort (CoreAudioBackend &b, const std::string&, PortFlags); + public: + virtual ~CoreBackendPort (); + + const std::string& name () const { return _name; } + PortFlags flags () const { return _flags; } + + int set_name (const std::string &name) { _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 CoreBackendPort *port) const; + bool is_physically_connected () const; + + const std::vector& get_connections () const { return _connections; } + + int connect (CoreBackendPort *port); + int disconnect (CoreBackendPort *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: + CoreAudioBackend &_osx_backend; + std::string _name; + const PortFlags _flags; + LatencyRange _capture_latency_range; + LatencyRange _playback_latency_range; + std::vector _connections; + + void _connect (CoreBackendPort* , bool); + void _disconnect (CoreBackendPort* , bool); + +}; // class CoreBackendPort + +class CoreAudioPort : public CoreBackendPort { + public: + CoreAudioPort (CoreAudioBackend &b, const std::string&, PortFlags); + ~CoreAudioPort (); + + 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 CoreAudioPort + +class CoreMidiPort : public CoreBackendPort { + public: + CoreMidiPort (CoreAudioBackend &b, const std::string&, PortFlags); + ~CoreMidiPort (); + + DataType type () const { return DataType::MIDI; }; + + void* get_buffer (pframes_t nframes); + const CoreMidiBuffer * 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: + CoreMidiBuffer _buffer[2]; + int _n_periods; + int _bufperiod; +}; // class CoreMidiPort + +class CoreAudioBackend : public AudioBackend { + friend class CoreBackendPort; + public: + CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info); + ~CoreAudioBackend (); + + /* AUDIOBACKEND API */ + + std::string name () const; + bool is_realtime () const; + + std::vector enumerate_devices () const; + std::vector available_sample_rates (const std::string& device) const; + std::vector 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); + int set_systemic_midi_output_latency (std::string const, uint32_t); + + 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; + uint32_t systemic_midi_output_latency (std::string const) const; + + bool can_set_systemic_midi_latencies () const { return false; /* XXX */} + + /* External control app */ + std::string control_app_name () const { return std::string (); } + void launch_control_app () {} + + /* MIDI */ + std::vector enumerate_midi_options () const; + int set_midi_option (const std::string&); + std::string midi_option () const; + + std::vector enumerate_midi_devices () const; + int set_midi_device_enabled (std::string const, bool); + bool midi_device_enabled (std::string const) const; + + // really private, but needing static access: + int process_callback(); + void error_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 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_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector&) 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&, 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&); + void get_physical_inputs (DataType type, std::vector&); + 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 post_process (); + void coremidi_rediscover (); + + private: + std::string _instance_name; + CoreAudioPCM *_pcmio; + CoreMidiIo *_midiio; + + bool _run; /* keep going or stop, ardour thread */ + bool _active_ca; /* is running, process thread */ + bool _active_fw; /* is running, process thread */ + bool _preinit; + bool _freewheeling; + bool _freewheel; + bool _freewheel_ack; + bool _reinit_thread_callback; + bool _measure_latency; + pthread_mutex_t _process_callback_mutex; + + static std::vector _midi_options; + static std::vector _audio_device_status; + static std::vector _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; + + /* midi settings */ + struct CoreMidiDeviceInfo { + bool enabled; + uint32_t systemic_input_latency; + uint32_t systemic_output_latency; + CoreMidiDeviceInfo() + : enabled (true) + , systemic_input_latency (0) + , systemic_output_latency (0) + {} + }; + + mutable std::map _midi_devices; + struct CoreMidiDeviceInfo * midi_device_info(std::string const) const; + + /* processing */ + float _dsp_load; + uint64_t _processed_samples; + + pthread_t _main_thread; + pthread_t _freeewheel_thread; + + /* process threads */ + static void* coreaudio_process_thread (void *); + std::vector _threads; + + struct ThreadData { + CoreAudioBackend* engine; + boost::function f; + size_t stacksize; + + ThreadData (CoreAudioBackend* e, boost::function 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 (); + int register_system_midi_ports (); + void unregister_ports (bool system_only = false); + + std::vector _ports; + std::vector _system_inputs; + std::vector _system_outputs; + std::vector _system_midi_in; + std::vector _system_midi_out; + + //std::vector _rmidi_out; + //std::vector _rmidi_in; + + 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 _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 (), (CoreBackendPort*)port) != _ports.end (); + } + + CoreBackendPort * find_port (const std::string& port_name) const { + for (std::vector::const_iterator it = _ports.begin (); it != _ports.end (); ++it) { + if ((*it)->name () == port_name) { + return *it; + } + } + return NULL; + } + +}; // class CoreAudioBackend + +} // namespace + +#endif /* __libbackend_coreaudio_backend_h__ */ diff --git a/libs/backends/coreaudio/coreaudio_pcmio.cc b/libs/backends/coreaudio/coreaudio_pcmio.cc new file mode 100644 index 0000000000..a1615d8583 --- /dev/null +++ b/libs/backends/coreaudio/coreaudio_pcmio.cc @@ -0,0 +1,483 @@ +/* + * Copyright (C) 2015 Robin Gareus + * + * 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 "coreaudio_pcmio.h" +#include + + +static OSStatus hardwarePropertyChangeCallback (AudioHardwarePropertyID inPropertyID, void* arg) { + if (inPropertyID == kAudioHardwarePropertyDevices) { + CoreAudioPCM * self = static_cast(arg); + self->hwPropertyChange(); + } + return noErr; +} + +CoreAudioPCM::CoreAudioPCM () + : _auhal (0) + , _deviceIDs (0) + , _inputAudioBufferList (0) + , _state (-1) + , _capture_channels (0) + , _playback_channels (0) + , _in_process (false) + , _numDevices (0) + , _process_callback (0) + , _error_callback (0) + , _device_ins (0) + , _device_outs (0) +{ +#ifdef COREAUDIO_108 // TODO + CFRunLoopRef theRunLoop = NULL; + AudioObjectPropertyAddress property = { kAudioHardwarePropertyRunLoop, kAudioObjectPropertyScopeGlobal, kAudioHardwarePropertyDevices }; + AudioObjectSetPropertyData (kAudioObjectSystemObject, &property, 0, NULL, sizeof(CFRunLoopRef), &theRunLoop); +#endif + AudioHardwareAddPropertyListener (kAudioHardwarePropertyDevices, hardwarePropertyChangeCallback, this); +} + +CoreAudioPCM::~CoreAudioPCM () +{ + if (_state == 0) { + pcm_stop(); + } + delete _deviceIDs; + free(_device_ins); + free(_device_outs); + AudioHardwareRemovePropertyListener(kAudioHardwarePropertyDevices, hardwarePropertyChangeCallback); + free(_inputAudioBufferList); +} + + +void +CoreAudioPCM::hwPropertyChange() { + printf("hardwarePropertyChangeCallback\n"); + discover(); +} + +void +CoreAudioPCM::discover() { + OSStatus err; + UInt32 propSize = 0; + + // TODO trymutex lock. + + if (_deviceIDs) { + delete _deviceIDs; _deviceIDs = 0; + free(_device_ins); _device_ins = 0; + free(_device_outs); _device_outs = 0; + } + _devices.clear(); + +#ifdef COREAUDIO_108 + AudioObjectPropertyAddress propertyAddress; + propertyAddress.mSelector = kAudioHardwarePropertyDevices; + propertyAddress.mScope = kAudioObjectPropertyScopeGlobal; + propertyAddress.mElement = kAudioObjectPropertyElementMaster; + err = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &propSize); +#else + err = AudioHardwareGetPropertyInfo (kAudioHardwarePropertyDevices, &propSize, NULL); +#endif + + _numDevices = propSize / sizeof (AudioDeviceID); + propSize = _numDevices * sizeof (AudioDeviceID); + + _deviceIDs = new AudioDeviceID[_numDevices]; + _device_ins = (uint32_t*) calloc(_numDevices, sizeof(uint32_t)); + _device_outs = (uint32_t*) calloc(_numDevices, sizeof(uint32_t)); + +#ifdef COREAUDIO_108 + propertyAddress.mSelector = kAudioHardwarePropertyDevices; + err = AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &propSize, _deviceIDs); +#else + err = AudioHardwareGetProperty (kAudioHardwarePropertyDevices, &propSize, _deviceIDs); +#endif + + for (size_t deviceIndex = 0; deviceIndex < _numDevices; deviceIndex++) { + propSize = 64; + char deviceName[64]; +#ifdef COREAUDIO_108 + propertyAddress.mSelector = kAudioDevicePropertyDeviceName; + propertyAddress.mScope = kAudioDevicePropertyScopeOutput; + err = AudioObjectGetPropertyData(_deviceIDs[deviceIndex], &propertyAddress, 0, NULL, &propSize, deviceName); +#else + err = AudioDeviceGetProperty(_deviceIDs[deviceIndex], 0, 0, kAudioDevicePropertyDeviceName, &propSize, deviceName); +#endif + + if (kAudioHardwareNoError != err) { + fprintf(stderr, "device name query failed: %i\n", err); + continue; + } + + UInt32 size; + UInt32 outputChannelCount = 0; + UInt32 inputChannelCount = 0; + AudioBufferList *bufferList = NULL; + + /* query number of inputs */ +#ifdef COREAUDIO_108 + size = 0; + propertyAddress.mSelector = kAudioDevicePropertyStreamConfiguration; + propertyAddress.mScope = kAudioDevicePropertyScopeOutput; + err = AudioObjectGetPropertyDataSize(_deviceIDs[deviceIndex], &propertyAddress, 0, NULL, &size); + if (kAudioHardwareNoError != err) { + fprintf(stderr, "kAudioDevicePropertyStreamConfiguration failed: %i\n", err); + continue; + } + + bufferList = (AudioBufferList *)(malloc(size)); + assert(bufferList); + if (!bufferList) { fprintf(stderr, "OUT OF MEMORY\n"); break; } + + err = AudioObjectGetPropertyData(_deviceIDs[deviceIndex], &propertyAddress, 0, NULL, &size, bufferList); + +#else + err = AudioDeviceGetPropertyInfo (_deviceIDs[deviceIndex], 0, AUHAL_OUTPUT_ELEMENT, kAudioDevicePropertyStreamConfiguration, &propSize, NULL); + if (kAudioHardwareNoError != err) { + fprintf(stderr, "kAudioDevicePropertyStreamConfiguration failed: %i\n", err); + continue; + } + bufferList = (AudioBufferList *)(malloc(size)); + assert(bufferList); + if (!bufferList) { fprintf(stderr, "OUT OF MEMORY\n"); break; } + + bufferList->mNumberBuffers = 0; + err = AudioDeviceGetProperty(_deviceIDs[deviceIndex], 0, AUHAL_OUTPUT_ELEMENT, kAudioDevicePropertyStreamConfiguration, &size, bufferList); +#endif + if(kAudioHardwareNoError != err) { + fprintf(stderr, "kAudioDevicePropertyStreamConfiguration failed: %i\n", err); + free(bufferList); + continue; + } + + for(UInt32 j = 0; j < bufferList->mNumberBuffers; ++j) { + outputChannelCount += bufferList->mBuffers[j].mNumberChannels; + } + free(bufferList); + + + /* query number of inputs */ +#ifdef COREAUDIO_108 + size = 0; + propertyAddress.mSelector = kAudioDevicePropertyStreamConfiguration; + propertyAddress.mScope = kAudioDevicePropertyScopeInput; + err = AudioObjectGetPropertyDataSize(_deviceIDs[deviceIndex], &propertyAddress, 0, NULL, &size); + if (kAudioHardwareNoError != err) { + fprintf(stderr, "kAudioDevicePropertyStreamConfiguration failed: %i\n", err); + continue; + } + + bufferList = (AudioBufferList *)(malloc(size)); + assert(bufferList); + if (!bufferList) { fprintf(stderr, "OUT OF MEMORY\n"); break; } + + err = AudioObjectGetPropertyData(_deviceIDs[deviceIndex], &propertyAddress, 0, NULL, &size, bufferList); +#else + err = AudioDeviceGetPropertyInfo (_deviceIDs[deviceIndex], 0, AUHAL_INPUT_ELEMENT, kAudioDevicePropertyStreamConfiguration, &propSize, NULL); + if (kAudioHardwareNoError != err) { + fprintf(stderr, "kAudioDevicePropertyStreamConfiguration failed: %i\n", err); + continue; + } + bufferList = (AudioBufferList *)(malloc(size)); + assert(bufferList); + if (!bufferList) { fprintf(stderr, "OUT OF MEMORY\n"); break; } + + bufferList->mNumberBuffers = 0; + err = AudioDeviceGetProperty(_deviceIDs[deviceIndex], 0, AUHAL_INPUT_ELEMENT, kAudioDevicePropertyStreamConfiguration, &size, bufferList); +#endif + if(kAudioHardwareNoError != err) { + fprintf(stderr, "kAudioDevicePropertyStreamConfiguration failed: %i\n", err); + free(bufferList); + continue; + } + + for(UInt32 j = 0; j < bufferList->mNumberBuffers; ++j) { + inputChannelCount += bufferList->mBuffers[j].mNumberChannels; + } + free(bufferList); + + + + { + std::string dn = deviceName; + _device_ins[deviceIndex] = inputChannelCount; + _device_outs[deviceIndex] = outputChannelCount; + printf("CoreAudio Device: #%ld '%s' in:%d out:%d\n", deviceIndex, deviceName, inputChannelCount, outputChannelCount); + if (outputChannelCount > 0 && inputChannelCount > 0) { + _devices.insert (std::pair (deviceIndex, dn)); + } + } + } +} + +void +CoreAudioPCM::pcm_stop () +{ + printf("CoreAudioPCM::pcm_stop\n"); + if (!_auhal) return; + + AudioOutputUnitStop(_auhal); + AudioUnitUninitialize(_auhal); +#ifdef COREAUDIO_108 + AudioComponentInstanceDispose(_auhal); +#else + CloseComponent(_auhal); +#endif + _auhal = 0; + _state = -1; + _capture_channels = 0; + _playback_channels = 0; + + free(_inputAudioBufferList); + _inputAudioBufferList = 0; + + _error_callback = 0; + _process_callback = 0; +} + +#ifndef NDEBUG +static void PrintStreamDesc (AudioStreamBasicDescription *inDesc) +{ + printf ("- - - - - - - - - - - - - - - - - - - -\n"); + printf (" Sample Rate:%f", inDesc->mSampleRate); + printf (" Format ID:%.*s\n", (int)sizeof(inDesc->mFormatID), (char*)&inDesc->mFormatID); + printf (" Format Flags:%X\n", inDesc->mFormatFlags); + printf (" Bytes per Packet:%d\n", inDesc->mBytesPerPacket); + printf (" Frames per Packet:%d\n", inDesc->mFramesPerPacket); + printf (" Bytes per Frame:%d\n", inDesc->mBytesPerFrame); + printf (" Channels per Frame:%d\n", inDesc->mChannelsPerFrame); + printf (" Bits per Channel:%d\n", inDesc->mBitsPerChannel); + printf ("- - - - - - - - - - - - - - - - - - - -\n"); +} +#endif + +static OSStatus render_callback_ptr ( + void* inRefCon, + AudioUnitRenderActionFlags* ioActionFlags, + const AudioTimeStamp* inTimeStamp, + UInt32 inBusNumber, + UInt32 inNumberFrames, + AudioBufferList* ioData) +{ + CoreAudioPCM * d = static_cast (inRefCon); + return d->render_callback(ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, ioData); +} + + + +int +CoreAudioPCM::pcm_start ( + uint32_t device_id_in, uint32_t device_id_out, + uint32_t sample_rate, uint32_t samples_per_period, + int (process_callback (void*)), void *process_arg) +{ + + assert(_deviceIDs); + _state = -2; + + if (device_id_out >= _numDevices || device_id_in >= _numDevices) { + return -1; + } + + _process_callback = process_callback; + _process_arg = process_arg; + _max_samples_per_period = samples_per_period; + _cur_samples_per_period = 0; + + ComponentResult err; + UInt32 enableIO; + AudioStreamBasicDescription srcFormat, dstFormat; + + AudioComponentDescription cd = {kAudioUnitType_Output, kAudioUnitSubType_HALOutput, kAudioUnitManufacturer_Apple, 0, 0}; + AudioComponent HALOutput = AudioComponentFindNext(NULL, &cd); + if (!HALOutput) { goto error; } + + err = AudioComponentInstanceNew(HALOutput, &_auhal); + if (err != noErr) { goto error; } + + err = AudioUnitInitialize(_auhal); + if (err != noErr) { goto error; } + + enableIO = 1; + err = AudioUnitSetProperty(_auhal, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, AUHAL_INPUT_ELEMENT, &enableIO, sizeof(enableIO)); + if (err != noErr) { goto error; } + enableIO = 1; + err = AudioUnitSetProperty(_auhal, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, AUHAL_OUTPUT_ELEMENT, &enableIO, sizeof(enableIO)); + if (err != noErr) { goto error; } + + err = AudioUnitSetProperty(_auhal, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, AUHAL_OUTPUT_ELEMENT, &_deviceIDs[device_id_out], sizeof(AudioDeviceID)); + if (err != noErr) { goto error; } + + err = AudioUnitSetProperty(_auhal, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, AUHAL_INPUT_ELEMENT, &_deviceIDs[device_id_in], sizeof(AudioDeviceID)); + if (err != noErr) { goto error; } + + // Set buffer size + err = AudioUnitSetProperty(_auhal, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, AUHAL_INPUT_ELEMENT, (UInt32*)&_max_samples_per_period, sizeof(UInt32)); + if (err != noErr) { goto error; } + err = AudioUnitSetProperty(_auhal, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, AUHAL_OUTPUT_ELEMENT, (UInt32*)&_max_samples_per_period, sizeof(UInt32)); + if (err != noErr) { goto error; } + + + // set sample format + srcFormat.mSampleRate = sample_rate; + srcFormat.mFormatID = kAudioFormatLinearPCM; + srcFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved; + srcFormat.mBytesPerPacket = sizeof(float); + srcFormat.mFramesPerPacket = 1; + srcFormat.mBytesPerFrame = sizeof(float); + srcFormat.mChannelsPerFrame = _device_ins[device_id_in]; + srcFormat.mBitsPerChannel = 32; + + err = AudioUnitSetProperty(_auhal, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, AUHAL_INPUT_ELEMENT, &srcFormat, sizeof(AudioStreamBasicDescription)); + if (err != noErr) { goto error; } + + dstFormat.mSampleRate = sample_rate; + dstFormat.mFormatID = kAudioFormatLinearPCM; + dstFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved; + dstFormat.mBytesPerPacket = sizeof(float); + dstFormat.mFramesPerPacket = 1; + dstFormat.mBytesPerFrame = sizeof(float); + dstFormat.mChannelsPerFrame = _device_outs[device_id_out]; + dstFormat.mBitsPerChannel = 32; + + err = AudioUnitSetProperty(_auhal, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, AUHAL_OUTPUT_ELEMENT, &dstFormat, sizeof(AudioStreamBasicDescription)); + if (err != noErr) { goto error; } + + UInt32 size; + size = sizeof(AudioStreamBasicDescription); + err = AudioUnitGetProperty(_auhal, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, AUHAL_INPUT_ELEMENT, &srcFormat, &size); + if (err != noErr) { goto error; } + _capture_channels = srcFormat.mChannelsPerFrame; +#ifndef NDEBUG + PrintStreamDesc(&srcFormat); +#endif + + size = sizeof(AudioStreamBasicDescription); + err = AudioUnitGetProperty(_auhal, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, AUHAL_OUTPUT_ELEMENT, &dstFormat, &size); + if (err != noErr) { goto error; } + _playback_channels = dstFormat.mChannelsPerFrame; + +#ifndef NDEBUG + PrintStreamDesc(&dstFormat); +#endif + + _inputAudioBufferList = (AudioBufferList*)malloc(sizeof(UInt32) + _capture_channels * sizeof(AudioBuffer)); + + // Setup callbacks + AURenderCallbackStruct renderCallback; + memset (&renderCallback, 0, sizeof (renderCallback)); + renderCallback.inputProc = render_callback_ptr; + renderCallback.inputProcRefCon = this; + err = AudioUnitSetProperty(_auhal, + kAudioUnitProperty_SetRenderCallback, + kAudioUnitScope_Output, AUHAL_OUTPUT_ELEMENT, + &renderCallback, sizeof (renderCallback)); + if (err != noErr) { goto error; } + + printf("SETUP OK..\n"); + + if (AudioOutputUnitStart(_auhal) == noErr) { + printf("Coreaudio Started..\n"); + _state = 0; + return 0; + } + +error: + pcm_stop(); + _state = -3; + return -1; +} + + +OSStatus +CoreAudioPCM::render_callback ( + AudioUnitRenderActionFlags* ioActionFlags, + const AudioTimeStamp* inTimeStamp, + UInt32 inBusNumber, + UInt32 inNumberFrames, + AudioBufferList* ioData) +{ + OSStatus retVal = 0; + + assert(_max_samples_per_period >= inNumberFrames); + assert(ioData->mNumberBuffers = _playback_channels); + + _cur_samples_per_period = inNumberFrames; + + + _inputAudioBufferList->mNumberBuffers = _capture_channels; + for (int i = 0; i < _capture_channels; ++i) { + _inputAudioBufferList->mBuffers[i].mNumberChannels = 1; + _inputAudioBufferList->mBuffers[i].mDataByteSize = inNumberFrames * sizeof(float); + _inputAudioBufferList->mBuffers[i].mData = NULL; + } + + retVal = AudioUnitRender(_auhal, ioActionFlags, inTimeStamp, AUHAL_INPUT_ELEMENT, inNumberFrames, _inputAudioBufferList); + + if (retVal != kAudioHardwareNoError) { + char *rv = (char*)&retVal; + printf("ERR %c%c%c%c\n", rv[0], rv[1], rv[2], rv[3]); + if (_error_callback) { + _error_callback(_error_arg); + } + return retVal; + } + + _outputAudioBufferList = ioData; + + _in_process = true; + + int rv = -1; + + if (_process_callback) { + rv = _process_callback(_process_arg); + } + + _in_process = false; + + if (rv != 0) { + // clear output + for (int i = 0; i < ioData->mNumberBuffers; ++i) { + float* ob = (float*) ioData->mBuffers[i].mData; + memset(ob, 0, sizeof(float) * inNumberFrames); + } + } + return noErr; +} + +int +CoreAudioPCM::get_capture_channel (uint32_t chn, float *input, uint32_t n_samples) +{ + if (!_in_process || chn > _capture_channels || n_samples > _cur_samples_per_period) { + return -1; + } + assert(_inputAudioBufferList->mNumberBuffers > chn); + memcpy((void*)input, (void*)_inputAudioBufferList->mBuffers[chn].mData, sizeof(float) * n_samples); + return 0; + +} +int +CoreAudioPCM::set_playback_channel (uint32_t chn, const float *output, uint32_t n_samples) +{ + if (!_in_process || chn > _playback_channels || n_samples > _cur_samples_per_period) { + return -1; + } + + assert(_outputAudioBufferList->mNumberBuffers > chn); + memcpy((void*)_outputAudioBufferList->mBuffers[chn].mData, (void*)output, sizeof(float) * n_samples); + return 0; +} diff --git a/libs/backends/coreaudio/coreaudio_pcmio.h b/libs/backends/coreaudio/coreaudio_pcmio.h new file mode 100644 index 0000000000..179f1aec02 --- /dev/null +++ b/libs/backends/coreaudio/coreaudio_pcmio.h @@ -0,0 +1,105 @@ +/* + * Copyright (C) 2015 Robin Gareus + * + * 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 +#include +#include + +#include +#include + +#include +#include + +#define AUHAL_OUTPUT_ELEMENT 0 +#define AUHAL_INPUT_ELEMENT 1 + + +class CoreAudioPCM { +public: + CoreAudioPCM (void); + ~CoreAudioPCM (void); + + + int state (void) const { return _state; } + uint32_t n_playback_channels (void) const { return _playback_channels; } + uint32_t n_capture_channels (void) const { return _capture_channels; } + + void discover(); + void device_list(std::map &devices) const { devices = _devices;} + + void pcm_stop (void); + int pcm_start ( + uint32_t input_device, + uint32_t output_device, + uint32_t sample_rate, + uint32_t samples_per_period, + int (process_callback (void*)), + void * process_arg + ); + + void set_error_callback ( + void ( error_callback (void*)), + void * error_arg + ) { + _error_callback = error_callback; + _error_arg = error_arg; + } + + // must be called from process_callback; + int get_capture_channel (uint32_t chn, float *input, uint32_t n_samples); + int set_playback_channel (uint32_t chn, const float *input, uint32_t n_samples); + uint32_t n_samples() const { return _cur_samples_per_period; }; + + // really private + OSStatus render_callback ( + AudioUnitRenderActionFlags* ioActionFlags, + const AudioTimeStamp* inTimeStamp, + UInt32 inBusNumber, + UInt32 inNumberFrames, + AudioBufferList* ioData); + + void hwPropertyChange(); + +private: + AudioUnit _auhal; + AudioDeviceID* _deviceIDs; + AudioBufferList* _inputAudioBufferList; + AudioBufferList* _outputAudioBufferList; + + int _state; + + uint32_t _max_samples_per_period; + uint32_t _cur_samples_per_period; + uint32_t _capture_channels; + uint32_t _playback_channels; + bool _in_process; + size_t _numDevices; + + int (* _process_callback) (void*); + void * _process_arg; + + void (* _error_callback) (void*); + void * _error_arg; + + std::map _devices; + // TODO proper device info struct + uint32_t * _device_ins; + uint32_t * _device_outs; + +}; diff --git a/libs/backends/coreaudio/coremidi_io.cc b/libs/backends/coreaudio/coremidi_io.cc new file mode 100644 index 0000000000..9ded1f4e6a --- /dev/null +++ b/libs/backends/coreaudio/coremidi_io.cc @@ -0,0 +1,275 @@ +/* + * Copyright (C) 2015 Robin Gareus + * + * 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 "coremidi_io.h" +#include + +static void notifyProc (const MIDINotification *message, void *refCon) { + CoreMidiIo *self = static_cast(refCon); + self->notify_proc(message); +} + +static void midiInputCallback(const MIDIPacketList *list, void *procRef, void *srcRef) { + // TODO skip while freewheeling + RingBuffer * rb = static_cast *> (srcRef); + if (!rb) return; + for (UInt32 i = 0; i < list->numPackets; i++) { + const MIDIPacket *packet = &list->packet[i]; + if (rb->write_space() < sizeof(MIDIPacket)) { + fprintf(stderr, "CoreMIDI: dropped MIDI event\n"); + continue; + } + rb->write((uint8_t*)packet, sizeof(MIDIPacket)); + } +} + + +CoreMidiIo::CoreMidiIo() + : _midiClient (0) + , _inputEndPoints (0) + , _outputEndPoints (0) + , _inputPorts (0) + , _outputPorts (0) + , _inputQueue (0) + , _rb (0) + , _n_midi_in (0) + , _n_midi_out (0) + , _time_at_cycle_start (0) + , _active (false) + , _changed_callback (0) + , _changed_arg (0) +{ + OSStatus err; + err = MIDIClientCreate(CFSTR("Ardour"), ¬ifyProc, this, &_midiClient); + if (noErr != err) { + fprintf(stderr, "Creating Midi Client failed\n"); + } + +} + +CoreMidiIo::~CoreMidiIo() +{ + cleanup(); + MIDIClientDispose(_midiClient); _midiClient = 0; +} + +void +CoreMidiIo::cleanup() +{ + _active = false; + for (uint32_t i = 0 ; i < _n_midi_in ; ++i) { + MIDIPortDispose(_inputPorts[i]); + _inputQueue[i].clear(); + delete _rb[i]; + } + for (uint32_t i = 0 ; i < _n_midi_out ; ++i) { + MIDIPortDispose(_outputPorts[i]); + } + + free(_inputPorts); _inputPorts = 0; + free(_inputEndPoints); _inputEndPoints = 0; + free(_inputQueue); _inputQueue = 0; + free(_outputPorts); _outputPorts = 0; + free(_outputEndPoints); _outputEndPoints = 0; + free(_rb); _rb = 0; + + _n_midi_in = 0; + _n_midi_out = 0; +} + +void +CoreMidiIo::start_cycle() +{ + _time_at_cycle_start = AudioGetCurrentHostTime(); +} + +void +CoreMidiIo::notify_proc(const MIDINotification *message) +{ + switch(message->messageID) { + case kMIDIMsgSetupChanged: + printf("kMIDIMsgSetupChanged\n"); + discover(); + break; + case kMIDIMsgObjectAdded: + { + const MIDIObjectAddRemoveNotification *n = (const MIDIObjectAddRemoveNotification*) message; + printf("kMIDIMsgObjectAdded\n"); + } + break; + case kMIDIMsgObjectRemoved: + { + const MIDIObjectAddRemoveNotification *n = (const MIDIObjectAddRemoveNotification*) message; + printf("kMIDIMsgObjectRemoved\n"); + } + break; + case kMIDIMsgPropertyChanged: + { + const MIDIObjectPropertyChangeNotification *n = (const MIDIObjectPropertyChangeNotification*) message; + printf("kMIDIMsgObjectRemoved\n"); + } + break; + case kMIDIMsgThruConnectionsChanged: + printf("kMIDIMsgThruConnectionsChanged\n"); + break; + case kMIDIMsgSerialPortOwnerChanged: + printf("kMIDIMsgSerialPortOwnerChanged\n"); + break; + case kMIDIMsgIOError: + printf("kMIDIMsgIOError\n"); + cleanup(); + //discover(); + break; + } +} + +size_t +CoreMidiIo::recv_event (uint32_t port, double cycle_time_us, uint64_t &time, uint8_t *d, size_t &s) +{ + if (!_active || _time_at_cycle_start == 0) { + return 0; + } + assert(port < _n_midi_in); + + while (_rb[port]->read_space() >= sizeof(MIDIPacket)) { + MIDIPacket packet; + size_t rv = _rb[port]->read((uint8_t*)&packet, sizeof(MIDIPacket)); + assert(rv == sizeof(MIDIPacket)); + _inputQueue[port].push_back(boost::shared_ptr(new _CoreMIDIPacket (&packet))); + } + + UInt64 start = _time_at_cycle_start; + UInt64 end = AudioConvertNanosToHostTime(AudioConvertHostTimeToNanos(_time_at_cycle_start) + cycle_time_us * 1e3); + + for (CoreMIDIQueue::iterator it = _inputQueue[port].begin (); it != _inputQueue[port].end (); ) { + if ((*it)->timeStamp < end) { + if ((*it)->timeStamp < start) { + uint64_t dt = AudioConvertHostTimeToNanos(start - (*it)->timeStamp); + //printf("Stale Midi Event dt:%.2fms\n", dt * 1e-6); + if (dt > 1e-4) { // 100ms, maybe too large + it = _inputQueue[port].erase(it); + continue; + } + time = 0; + } else { + time = AudioConvertHostTimeToNanos((*it)->timeStamp - start); + } + s = std::min(s, (size_t) (*it)->length); + if (s > 0) { + memcpy(d, (*it)->data, s); + } + _inputQueue[port].erase(it); + return s; + } + ++it; + + } + return 0; +} + +int +CoreMidiIo::send_event (uint32_t port, double reltime_us, const uint8_t *d, const size_t s) +{ + if (!_active || _time_at_cycle_start == 0) { + return 0; + } + + assert(port < _n_midi_out); + UInt64 ts = AudioConvertHostTimeToNanos(_time_at_cycle_start); + ts += reltime_us * 1e3; + + // TODO use a single packet list.. queue all events first.. + MIDIPacketList pl; + + pl.numPackets = 1; + MIDIPacket *mp = &(pl.packet[0]); + + mp->timeStamp = AudioConvertNanosToHostTime(ts); + mp->length = s; + assert(s < 256); + memcpy(mp->data, d, s); + + MIDISend(_outputPorts[port], _outputEndPoints[port], &pl); + return 0; +} + +void +CoreMidiIo::discover() +{ + cleanup(); + + assert(!_active && _midiClient); + + ItemCount srcCount = MIDIGetNumberOfSources(); + ItemCount dstCount = MIDIGetNumberOfDestinations(); + + if (srcCount > 0) { + _inputPorts = (MIDIPortRef *) malloc (srcCount * sizeof(MIDIPortRef)); + _inputEndPoints = (MIDIEndpointRef*) malloc (srcCount * sizeof(MIDIEndpointRef)); + _inputQueue = (CoreMIDIQueue*) calloc (srcCount, sizeof(CoreMIDIQueue)); + _rb = (RingBuffer **) malloc (srcCount * sizeof(RingBuffer*)); + } + if (dstCount > 0) { + _outputPorts = (MIDIPortRef *) malloc (dstCount * sizeof(MIDIPortRef)); + _outputEndPoints = (MIDIEndpointRef*) malloc (dstCount * sizeof(MIDIEndpointRef)); + } + + for (ItemCount i = 0; i < srcCount; i++) { + OSStatus err; + MIDIEndpointRef src = MIDIGetSource(i); + CFStringRef port_name; + port_name = CFStringCreateWithFormat(NULL, NULL, CFSTR("midi_capture_%lu"), i); + + err = MIDIInputPortCreate (_midiClient, port_name, midiInputCallback, this, &_inputPorts[_n_midi_in]); + if (noErr != err) { + fprintf(stderr, "Cannot create Midi Output\n"); + // TODO handle errors + continue; + } + _rb[_n_midi_in] = new RingBuffer(1024 * sizeof(MIDIPacket)); + _inputQueue[_n_midi_in] = CoreMIDIQueue(); + MIDIPortConnectSource(_inputPorts[_n_midi_in], src, (void*) _rb[_n_midi_in]); + CFRelease(port_name); + _inputEndPoints[_n_midi_in] = src; + ++_n_midi_in; + } + + for (ItemCount i = 0; i < dstCount; i++) { + MIDIEndpointRef dst = MIDIGetDestination(i); + CFStringRef port_name; + port_name = CFStringCreateWithFormat(NULL, NULL, CFSTR("midi_playback_%lu"), i); + + OSStatus err; + err = MIDIOutputPortCreate (_midiClient, port_name, &_outputPorts[_n_midi_out]); + if (noErr != err) { + fprintf(stderr, "Cannot create Midi Output\n"); + // TODO handle errors + continue; + } + MIDIPortConnectSource(_outputPorts[_n_midi_out], dst, NULL); + CFRelease(port_name); + _outputEndPoints[_n_midi_out] = dst; + ++_n_midi_out; + } + + if (_changed_callback) { + _changed_callback(_changed_arg); + } + + _active = true; +} diff --git a/libs/backends/coreaudio/coremidi_io.h b/libs/backends/coreaudio/coremidi_io.h new file mode 100644 index 0000000000..312b9d171e --- /dev/null +++ b/libs/backends/coreaudio/coremidi_io.h @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2015 Robin Gareus + * + * 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 +#include +#include + +#include +#include + +#include +#include +#include + +#include +#include "pbd/ringbuffer.h" + +typedef struct _CoreMIDIPacket { + MIDITimeStamp timeStamp; + UInt16 length; + Byte data[256]; +#if 0 // unused + _CoreMIDIPacket (MIDITimeStamp t, Byte *d, UInt16 l) + : timeStamp(t) + , length (l) + { + if (l > 256) { + length = 256; + } + if (length > 0) { + memcpy(data, d, length); + } + } +#endif + _CoreMIDIPacket (const MIDIPacket *other) + : timeStamp(other->timeStamp) + , length (other->length) + { + if (length > 0) { + memcpy(data, other->data, length); + } + } +} CoreMIDIPacket; + +typedef std::vector > CoreMIDIQueue; + +class CoreMidiIo { +public: + CoreMidiIo (void); + ~CoreMidiIo (void); + + // TODO explicit start/stop, add/remove devices as needed. + void discover (); + void start_cycle (); + + int send_event (uint32_t, double, const uint8_t *, const size_t); + size_t recv_event (uint32_t, double, uint64_t &, uint8_t *, size_t &); + + uint32_t n_midi_inputs (void) const { return _n_midi_in; } + uint32_t n_midi_outputs (void) const { return _n_midi_out; } + + void notify_proc (const MIDINotification *message); + + void setPortChangedCallback (void (changed_callback (void*)), void *arg) { + _changed_callback = changed_callback; + _changed_arg = arg; + } + +private: + void cleanup (); + + MIDIClientRef _midiClient; + MIDIEndpointRef * _inputEndPoints; + MIDIEndpointRef * _outputEndPoints; + MIDIPortRef * _inputPorts; + MIDIPortRef * _outputPorts; + CoreMIDIQueue * _inputQueue; + RingBuffer ** _rb; + + uint32_t _n_midi_in; + uint32_t _n_midi_out; + + MIDITimeStamp _time_at_cycle_start; + bool _active; + + void (* _changed_callback) (void*); + void * _changed_arg; +}; diff --git a/libs/backends/coreaudio/rt_thread.h b/libs/backends/coreaudio/rt_thread.h new file mode 100644 index 0000000000..3d2efe2063 --- /dev/null +++ b/libs/backends/coreaudio/rt_thread.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2014 Robin Gareus + * + * 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_alsa_rthread_h__ +#define __libbackend_alsa_rthread_h__ + +#include +#include + +static int +_realtime_pthread_create ( + const int policy, int priority, const size_t stacksize, + pthread_t *thread, + void *(*start_routine) (void *), + void *arg) +{ + int rv; + + pthread_attr_t attr; + struct sched_param parm; + + const int p_min = sched_get_priority_min (policy); + const int p_max = sched_get_priority_max (policy); + priority += p_max; + if (priority > p_max) priority = p_max; + if (priority < p_min) priority = p_min; + parm.sched_priority = priority; + + pthread_attr_init (&attr); + pthread_attr_setschedpolicy (&attr, policy); + pthread_attr_setschedparam (&attr, &parm); + pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM); + pthread_attr_setinheritsched (&attr, PTHREAD_EXPLICIT_SCHED); + pthread_attr_setstacksize (&attr, stacksize); + rv = pthread_create (thread, &attr, start_routine, arg); + pthread_attr_destroy (&attr); + return rv; +} + +#endif diff --git a/libs/backends/coreaudio/wscript b/libs/backends/coreaudio/wscript new file mode 100644 index 0000000000..b0e6f4af12 --- /dev/null +++ b/libs/backends/coreaudio/wscript @@ -0,0 +1,33 @@ +#!/usr/bin/env python +from waflib.extras import autowaf as autowaf +import os +import sys +import re + +I18N_PACKAGE = 'coreaudio-backend' + +# Mandatory variables +top = '.' +out = 'build' + +def options(opt): + autowaf.set_options(opt) + +def configure(conf): + autowaf.configure(conf) + +def build(bld): + obj = bld(features = 'cxx cxxshlib') + obj.source = [ 'coreaudio_backend.cc', + 'coreaudio_pcmio.cc', + 'coremidi_io.cc' + ] + obj.includes = ['.'] + obj.name = 'coreaudio_backend' + obj.target = 'coreaudio_backend' + obj.use = 'libardour libpbd' + obj.framework = [ 'CoreAudio', 'AudioToolbox', 'CoreServices', 'CoreMidi' ] + obj.install_path = os.path.join(bld.env['LIBDIR'], 'backends') + obj.defines = ['PACKAGE="' + I18N_PACKAGE + '"', + 'ARDOURBACKEND_DLL_EXPORTS', 'COREAUDIO_108' + ] -- cgit v1.2.3