PBD::Transmitter is neither thread-safe nor rt-safe. This likely fixes a crash on macOS when process-threads are started. Many threads simultaneously enter coreaudio_process_thread() and log a message calling `PBD::info << .. << endmsg` simultaneously.
1895 lines
48 KiB
C++
1895 lines
48 KiB
C++
/*
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* Copyright (C) 2015-2018 Robin Gareus <robin@gareus.org>
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* Copyright (C) 2016-2018 Paul Davis <paul@linuxaudiosystems.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <regex.h>
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#include <sys/mman.h>
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#include <sys/time.h>
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#undef nil
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#include <glibmm.h>
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#include "coreaudio_backend.h"
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#include "pbd/compose.h"
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#include "pbd/error.h"
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#include "pbd/file_utils.h"
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#include "pbd/pthread_utils.h"
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#include "ardour/debug.h"
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#include "ardour/filesystem_paths.h"
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#include "ardour/port_manager.h"
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#include "pbd/i18n.h"
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using namespace ARDOUR;
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static std::string s_instance_name;
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size_t CoreAudioBackend::_max_buffer_size = 8192;
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std::vector<std::string> CoreAudioBackend::_midi_options;
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std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
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std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
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std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
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/* static class instance access */
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static void hw_changed_callback_ptr (void *arg)
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{
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CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
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d->hw_changed_callback();
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}
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static void error_callback_ptr (void *arg)
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{
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CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
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d->error_callback();
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}
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static void xrun_callback_ptr (void *arg)
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{
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CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
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d->xrun_callback();
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}
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static void buffer_size_callback_ptr (void *arg)
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{
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CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
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d->buffer_size_callback();
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}
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static void sample_rate_callback_ptr (void *arg)
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{
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CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
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d->sample_rate_callback();
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}
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static void midi_port_change (void *arg)
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{
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CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
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d->coremidi_rediscover ();
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}
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CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
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: AudioBackend (e, info)
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, PortEngineSharedImpl (e, s_instance_name)
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, _run (false)
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, _active_ca (false)
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, _active_fw (false)
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, _freewheeling (false)
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, _freewheel (false)
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, _freewheel_ack (false)
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, _reinit_thread_callback (false)
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, _measure_latency (false)
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, _last_process_start (0)
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, _input_audio_device("")
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, _output_audio_device("")
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, _midi_driver_option(get_standard_device_name(DeviceNone))
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, _samplerate (48000)
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, _samples_per_period (1024)
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, _n_inputs (0)
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, _n_outputs (0)
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, _systemic_audio_input_latency (0)
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, _systemic_audio_output_latency (0)
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, _dsp_load (0)
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, _processed_samples (0)
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{
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_instance_name = s_instance_name;
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pthread_mutex_init (&_process_callback_mutex, 0);
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pthread_mutex_init (&_freewheel_mutex, 0);
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pthread_cond_init (&_freewheel_signal, 0);
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_port_connection_queue.reserve (128);
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_pcmio = new CoreAudioPCM ();
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_midiio = new CoreMidiIo ();
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_pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
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_pcmio->discover();
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}
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CoreAudioBackend::~CoreAudioBackend ()
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{
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delete _pcmio; _pcmio = 0;
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delete _midiio; _midiio = 0;
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clear_ports ();
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pthread_mutex_destroy (&_process_callback_mutex);
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pthread_mutex_destroy (&_freewheel_mutex);
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pthread_cond_destroy (&_freewheel_signal);
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}
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/* AUDIOBACKEND API */
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std::string
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CoreAudioBackend::name () const
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{
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return X_("CoreAudio");
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}
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bool
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CoreAudioBackend::is_realtime () const
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{
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return true;
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}
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std::vector<AudioBackend::DeviceStatus>
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CoreAudioBackend::enumerate_devices () const
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{
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_duplex_audio_device_status.clear();
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std::map<size_t, std::string> devices;
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_pcmio->duplex_device_list(devices);
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for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
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if (_input_audio_device == "") _input_audio_device = i->second;
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if (_output_audio_device == "") _output_audio_device = i->second;
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_duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
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}
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return _duplex_audio_device_status;
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}
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std::vector<AudioBackend::DeviceStatus>
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CoreAudioBackend::enumerate_input_devices () const
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{
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_input_audio_device_status.clear();
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std::map<size_t, std::string> devices;
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_pcmio->input_device_list(devices);
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_input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
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for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
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if (_input_audio_device == "") _input_audio_device = i->second;
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_input_audio_device_status.push_back (DeviceStatus (i->second, true));
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}
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return _input_audio_device_status;
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}
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std::vector<AudioBackend::DeviceStatus>
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CoreAudioBackend::enumerate_output_devices () const
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{
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_output_audio_device_status.clear();
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std::map<size_t, std::string> devices;
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_pcmio->output_device_list(devices);
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_output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
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for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
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if (_output_audio_device == "") _output_audio_device = i->second;
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_output_audio_device_status.push_back (DeviceStatus (i->second, true));
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}
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return _output_audio_device_status;
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}
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std::vector<float>
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CoreAudioBackend::available_sample_rates (const std::string& device) const
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{
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std::vector<float> sr;
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_pcmio->available_sample_rates (name_to_id (device), sr);
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return sr;
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}
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std::vector<float>
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CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) const
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{
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std::vector<float> sr;
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std::vector<float> sr_in;
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std::vector<float> sr_out;
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const uint32_t inp = name_to_id (input_device, Input);
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const uint32_t out = name_to_id (output_device, Output);
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if (inp == UINT32_MAX && out == UINT32_MAX) {
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return sr;
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} else if (inp == UINT32_MAX) {
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_pcmio->available_sample_rates (out, sr_out);
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return sr_out;
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} else if (out == UINT32_MAX) {
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_pcmio->available_sample_rates (inp, sr_in);
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return sr_in;
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} else {
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_pcmio->available_sample_rates (inp, sr_in);
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_pcmio->available_sample_rates (out, sr_out);
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// TODO allow to use different SR per device, tweak aggregate
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std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
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return sr;
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}
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}
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std::vector<uint32_t>
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CoreAudioBackend::available_buffer_sizes (const std::string& device) const
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{
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std::vector<uint32_t> bs;
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_pcmio->available_buffer_sizes (name_to_id (device), bs);
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return bs;
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}
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std::vector<uint32_t>
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CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) const
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{
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std::vector<uint32_t> bs;
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std::vector<uint32_t> bs_in;
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std::vector<uint32_t> bs_out;
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const uint32_t inp = name_to_id (input_device, Input);
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const uint32_t out = name_to_id (output_device, Output);
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if (inp == UINT32_MAX && out == UINT32_MAX) {
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return bs;
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} else if (inp == UINT32_MAX) {
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_pcmio->available_buffer_sizes (out, bs_out);
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return bs_out;
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} else if (out == UINT32_MAX) {
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_pcmio->available_buffer_sizes (inp, bs_in);
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return bs_in;
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} else {
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_pcmio->available_buffer_sizes (inp, bs_in);
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_pcmio->available_buffer_sizes (out, bs_out);
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std::set_intersection (bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
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return bs;
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}
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}
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uint32_t
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CoreAudioBackend::available_input_channel_count (const std::string&) const
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{
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return 128; // TODO query current device
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}
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uint32_t
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CoreAudioBackend::available_output_channel_count (const std::string&) const
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{
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return 128; // TODO query current device
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}
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bool
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CoreAudioBackend::can_change_sample_rate_when_running () const
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{
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return false;
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}
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bool
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CoreAudioBackend::can_change_buffer_size_when_running () const
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{
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return true;
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}
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int
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CoreAudioBackend::set_device_name (const std::string& d)
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{
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int rv = 0;
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rv |= set_input_device_name (d);
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rv |= set_output_device_name (d);
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return rv;
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}
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int
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CoreAudioBackend::set_input_device_name (const std::string& d)
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{
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_input_audio_device = d;
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const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device, Input));
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if (sr > 0) { set_sample_rate(sr); }
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return 0;
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}
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int
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CoreAudioBackend::set_output_device_name (const std::string& d)
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{
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_output_audio_device = d;
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// TODO check SR.
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const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device, Output));
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if (sr > 0) { set_sample_rate(sr); }
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return 0;
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}
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int
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CoreAudioBackend::set_sample_rate (float sr)
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{
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std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_audio_device);
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if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
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return -1;
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}
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_samplerate = sr;
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engine.sample_rate_change (sr);
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return 0;
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}
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int
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CoreAudioBackend::set_buffer_size (uint32_t bs)
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{
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if (bs <= 0 || bs >= _max_buffer_size) {
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return -1;
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}
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if (!_run) {
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_samples_per_period = bs;
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engine.buffer_size_change (bs);
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}
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_pcmio->set_samples_per_period(bs);
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if (_run) {
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pbd_mach_set_realtime_policy (_main_thread, 1e9 * bs / _samplerate, true);
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}
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for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i) {
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pbd_mach_set_realtime_policy (*i, 1e9 * bs / _samplerate, false);
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}
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return 0;
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}
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int
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CoreAudioBackend::set_interleaved (bool yn)
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{
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if (!yn) { return 0; }
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return -1;
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}
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int
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CoreAudioBackend::set_input_channels (uint32_t cc)
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{
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_n_inputs = cc;
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return 0;
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}
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int
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CoreAudioBackend::set_output_channels (uint32_t cc)
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{
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_n_outputs = cc;
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return 0;
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}
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int
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CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
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{
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_systemic_audio_input_latency = sl;
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return 0;
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}
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int
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CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
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{
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_systemic_audio_output_latency = sl;
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return 0;
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}
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/* Retrieving parameters */
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std::string
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CoreAudioBackend::device_name () const
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{
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return "";
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}
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std::string
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CoreAudioBackend::input_device_name () const
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{
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return _input_audio_device;
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}
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std::string
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CoreAudioBackend::output_device_name () const
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{
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return _output_audio_device;
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}
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float
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CoreAudioBackend::sample_rate () const
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{
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return _samplerate;
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}
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uint32_t
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CoreAudioBackend::buffer_size () const
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{
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return _samples_per_period;
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}
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bool
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CoreAudioBackend::interleaved () const
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{
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return false;
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}
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uint32_t
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CoreAudioBackend::input_channels () const
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{
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return _n_inputs;
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}
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uint32_t
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CoreAudioBackend::output_channels () const
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{
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return _n_outputs;
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}
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uint32_t
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CoreAudioBackend::systemic_input_latency () const
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{
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return _systemic_audio_input_latency;
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}
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uint32_t
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CoreAudioBackend::systemic_output_latency () const
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{
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return _systemic_audio_output_latency;
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}
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uint32_t
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CoreAudioBackend::systemic_hw_input_latency () const
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{
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if (name_to_id (_input_audio_device) != UINT32_MAX) {
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return _pcmio->get_latency(name_to_id(_input_audio_device, Input), true);
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}
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return 0;
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}
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uint32_t
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CoreAudioBackend::systemic_hw_output_latency () const
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{
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if (name_to_id (_output_audio_device) != UINT32_MAX) {
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return _pcmio->get_latency(name_to_id(_output_audio_device, Output), false);
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}
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return 0;
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}
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/* MIDI */
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std::vector<std::string>
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CoreAudioBackend::enumerate_midi_options () const
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{
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if (_midi_options.empty()) {
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_midi_options.push_back (_("CoreMidi"));
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_midi_options.push_back (get_standard_device_name(DeviceNone));
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}
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return _midi_options;
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}
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int
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CoreAudioBackend::set_midi_option (const std::string& opt)
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{
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if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
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return -1;
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}
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_midi_driver_option = opt;
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return 0;
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}
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std::string
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CoreAudioBackend::midi_option () const
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{
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return _midi_driver_option;
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}
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void
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CoreAudioBackend::launch_control_app ()
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{
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if (name_to_id (_input_audio_device) != UINT32_MAX) {
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_pcmio->launch_control_app(name_to_id(_input_audio_device, Input));
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}
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if (name_to_id (_output_audio_device) != UINT32_MAX) {
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_pcmio->launch_control_app(name_to_id(_output_audio_device, Output));
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}
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}
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/* State Control */
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static void * pthread_freewheel (void *arg)
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{
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CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
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pthread_set_name ("CAFreewheel");
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d->freewheel_thread ();
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pthread_exit (0);
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return 0;
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}
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static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
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{
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CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
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return d->process_callback(n_samples, host_time);
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}
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int
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CoreAudioBackend::_start (bool for_latency_measurement)
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{
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AudioBackend::ErrorCode error_code = NoError;
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|
|
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 BackendReinitializationError;
|
|
}
|
|
|
|
clear_ports ();
|
|
|
|
uint32_t device1 = name_to_id(_input_audio_device, Input);
|
|
uint32_t device2 = name_to_id(_output_audio_device, Output);
|
|
|
|
assert(_active_ca == false);
|
|
assert(_active_fw == false);
|
|
|
|
_freewheel_ack = false;
|
|
_reinit_thread_callback = true;
|
|
_last_process_start = 0;
|
|
|
|
_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, dsp_stats[AudioBackend::DeviceWait]);
|
|
#ifndef NDEBUG
|
|
printf("STATE: %d\n", _pcmio->state ());
|
|
#endif
|
|
switch (_pcmio->state ()) {
|
|
case 0: /* OK */
|
|
break;
|
|
case -1:
|
|
PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
|
|
error_code = AudioDeviceInvalidError;
|
|
break;
|
|
case -2:
|
|
PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
|
|
error_code = AudioDeviceNotAvailableError;
|
|
break;
|
|
case -3:
|
|
PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
|
|
error_code = AudioDeviceOpenError;
|
|
break;
|
|
case -4:
|
|
PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
|
|
error_code = SampleRateNotSupportedError;
|
|
break;
|
|
case -5:
|
|
PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
|
|
error_code = PeriodSizeNotSupportedError;
|
|
break;
|
|
case -6:
|
|
PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
|
|
error_code = SampleFormatNotSupportedError;
|
|
break;
|
|
case -7:
|
|
PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
|
|
error_code = BackendInitializationError; // XXX
|
|
break;
|
|
case -8:
|
|
PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
|
|
error_code = OutOfMemoryError;
|
|
break;
|
|
case -9:
|
|
PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
|
|
error_code = BackendInitializationError; // XXX
|
|
break;
|
|
case -10:
|
|
PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
|
|
error_code = AudioDeviceIOError;
|
|
break;
|
|
case -11:
|
|
PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
|
|
error_code = PeriodSizeNotSupportedError;
|
|
break;
|
|
case -12:
|
|
PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
|
|
error_code = DeviceConfigurationNotSupportedError;
|
|
break;
|
|
default:
|
|
PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
|
|
error_code = BackendInitializationError;
|
|
break;
|
|
}
|
|
if (_pcmio->state ()) {
|
|
return error_code;
|
|
}
|
|
|
|
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 << _("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::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
|
|
}
|
|
|
|
if (_pcmio->sample_rate() != _samplerate) {
|
|
_samplerate = _pcmio->sample_rate();
|
|
engine.sample_rate_change (_samplerate);
|
|
PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
|
|
}
|
|
|
|
_measure_latency = for_latency_measurement;
|
|
|
|
_preinit = true;
|
|
_run = true;
|
|
g_atomic_int_set (&_port_change_flag, 0);
|
|
|
|
if (_midi_driver_option == _("CoreMidi")) {
|
|
_midiio->set_enabled(true);
|
|
_midiio->set_port_changed_callback(midi_port_change, this);
|
|
_midiio->start(); // triggers port discovery, callback coremidi_rediscover()
|
|
}
|
|
|
|
if (register_system_audio_ports()) {
|
|
PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
|
|
_run = false;
|
|
return PortRegistrationError;
|
|
}
|
|
|
|
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 PortReconnectError;
|
|
}
|
|
|
|
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 ProcessThreadStartError;
|
|
}
|
|
|
|
int timeout = 5000;
|
|
while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
|
|
|
|
if (timeout == 0) {
|
|
PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
|
|
}
|
|
|
|
if (!_active_fw) {
|
|
PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
|
|
_run = false;
|
|
_pcmio->pcm_stop();
|
|
unregister_ports();
|
|
_active_ca = false;
|
|
_active_fw = false;
|
|
return FreewheelThreadStartError;
|
|
}
|
|
|
|
if (!_active_ca) {
|
|
PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
|
|
stop();
|
|
_run = false;
|
|
return ProcessThreadStartError;
|
|
}
|
|
|
|
engine.reconnect_ports ();
|
|
|
|
// force an initial registration_callback() & latency re-compute
|
|
g_atomic_int_set (&_port_change_flag, 1);
|
|
pre_process ();
|
|
|
|
_dsp_load_calc.reset ();
|
|
// all systems go.
|
|
_pcmio->set_xrun_callback (xrun_callback_ptr, this);
|
|
_preinit = false;
|
|
|
|
return NoError;
|
|
}
|
|
|
|
int
|
|
CoreAudioBackend::stop ()
|
|
{
|
|
void *status;
|
|
if (!_run) {
|
|
return 0;
|
|
}
|
|
|
|
_run = false;
|
|
_pcmio->pcm_stop();
|
|
_midiio->set_port_changed_callback(NULL, NULL);
|
|
_midiio->stop();
|
|
|
|
pthread_mutex_lock (&_freewheel_mutex);
|
|
pthread_cond_signal (&_freewheel_signal);
|
|
pthread_mutex_unlock (&_freewheel_mutex);
|
|
|
|
if (pthread_join (_freeewheel_thread, &status)) {
|
|
PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
|
|
return -1;
|
|
}
|
|
|
|
unregister_ports();
|
|
|
|
_active_ca = false;
|
|
_active_fw = false; // ??
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
CoreAudioBackend::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
|
|
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 */
|
|
samplepos_t
|
|
CoreAudioBackend::sample_time ()
|
|
{
|
|
return _processed_samples;
|
|
}
|
|
|
|
samplepos_t
|
|
CoreAudioBackend::sample_time_at_cycle_start ()
|
|
{
|
|
return _processed_samples;
|
|
}
|
|
|
|
pframes_t
|
|
CoreAudioBackend::samples_since_cycle_start ()
|
|
{
|
|
if (!_active_ca || !_run || _freewheeling || _freewheel) {
|
|
return 0;
|
|
}
|
|
if (_last_process_start == 0) {
|
|
return 0;
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
uint32_t
|
|
CoreAudioBackend::name_to_id(std::string device_name, DeviceFilter filter) const {
|
|
uint32_t device_id = UINT32_MAX;
|
|
std::map<size_t, std::string> devices;
|
|
switch (filter) {
|
|
case Input:
|
|
_pcmio->input_device_list (devices);
|
|
break;
|
|
case Output:
|
|
_pcmio->output_device_list (devices);
|
|
break;
|
|
case Duplex:
|
|
_pcmio->duplex_device_list (devices);
|
|
break;
|
|
case All:
|
|
default:
|
|
_pcmio->device_list (devices);
|
|
break;
|
|
}
|
|
|
|
for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
|
|
if (i->second == device_name) {
|
|
device_id = i->first;
|
|
break;
|
|
}
|
|
}
|
|
return device_id;
|
|
}
|
|
|
|
void *
|
|
CoreAudioBackend::coreaudio_process_thread (void *arg)
|
|
{
|
|
ThreadData* td = reinterpret_cast<ThreadData*> (arg);
|
|
|
|
if (pbd_mach_set_realtime_policy (pthread_self (), td->period_ns, false)) {
|
|
DEBUG_TRACE (PBD::DEBUG::BackendThreads, "AudioEngine: process thread failed to set mach realtime policy.\n");
|
|
}
|
|
|
|
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 110000
|
|
if (td->_joined_workgroup) {
|
|
/* have WG */
|
|
int res = os_workgroup_join (td->_workgroup, &td->_join_token);
|
|
switch (res) {
|
|
case 0:
|
|
DEBUG_TRACE (PBD::DEBUG::BackendThreads, "AudioEngine: process thread joined AUHAL workgroup.");
|
|
break;
|
|
case EALREADY:
|
|
DEBUG_TRACE (PBD::DEBUG::BackendThreads, "AudioEngine: process thread is already in a workgroup.");
|
|
td->_joined_workgroup = false;
|
|
break;
|
|
case EINVAL:
|
|
DEBUG_TRACE (PBD::DEBUG::BackendThreads, "AudioEngine: invalid workgroup for process thread.");
|
|
td->_joined_workgroup = false;
|
|
break;
|
|
default:
|
|
td->_joined_workgroup = false;
|
|
DEBUG_TRACE (PBD::DEBUG::BackendThreads, "AudioEngine: process thread failed to join AUHAL workgroup.");
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
boost::function<void ()> f = td->f;
|
|
f ();
|
|
|
|
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 110000
|
|
if (td->_joined_workgroup) {
|
|
os_workgroup_leave (td->_workgroup, &td->_join_token);
|
|
}
|
|
#endif
|
|
delete td;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
CoreAudioBackend::create_process_thread (boost::function<void()> func)
|
|
{
|
|
pthread_t thread_id;
|
|
ThreadData* td = new ThreadData (this, func, PBD_RT_STACKSIZE_PROC, 1e9 * _samples_per_period / _samplerate);
|
|
|
|
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 110000
|
|
if (_pcmio->workgroup (td->_workgroup)) {
|
|
td->_joined_workgroup = true;
|
|
} else {
|
|
td->_joined_workgroup = false;
|
|
}
|
|
#endif
|
|
|
|
if (pbd_realtime_pthread_create (PBD_SCHED_FIFO, PBD_RT_PRI_PROC, PBD_RT_STACKSIZE_PROC,
|
|
&thread_id, coreaudio_process_thread, td)) {
|
|
if (pbd_pthread_create (PBD_RT_STACKSIZE_PROC, &thread_id, coreaudio_process_thread, td)) {
|
|
PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
|
|
return -1;
|
|
}
|
|
PBD::warning << _("AudioEngine: process thread failed to acquire realtime permissions.") << endmsg;
|
|
}
|
|
|
|
_threads.push_back (thread_id);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
CoreAudioBackend::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
|
|
CoreAudioBackend::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
|
|
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;
|
|
}
|
|
|
|
int
|
|
CoreAudioBackend::register_system_audio_ports()
|
|
{
|
|
LatencyRange lr;
|
|
|
|
const uint32_t a_ins = _n_inputs;
|
|
const uint32_t a_out = _n_outputs;
|
|
|
|
const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device, Input), true);
|
|
const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device, Output), false);
|
|
|
|
#ifndef NDEBUG
|
|
printf("COREAUDIO LATENCY: i:%d, o:%d\n",
|
|
coreaudio_reported_input_latency,
|
|
coreaudio_reported_output_latency);
|
|
#endif
|
|
|
|
/* audio ports */
|
|
lr.min = lr.max = _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);
|
|
PortPtr p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
|
|
if (!p) return -1;
|
|
set_latency_range (p, false, lr);
|
|
BackendPortPtr cp = boost::dynamic_pointer_cast<BackendPort>(p);
|
|
cp->set_hw_port_name (_pcmio->cached_port_name(i, true));
|
|
_system_inputs.push_back(cp);
|
|
}
|
|
|
|
lr.min = lr.max = _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);
|
|
PortPtr p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
|
|
if (!p) return -1;
|
|
set_latency_range (p, true, lr);
|
|
BackendPortPtr cp = boost::dynamic_pointer_cast<BackendPort>(p);
|
|
cp->set_hw_port_name (_pcmio->cached_port_name(i, false));
|
|
_system_outputs.push_back(cp);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::coremidi_rediscover()
|
|
{
|
|
if (!_run) { return; }
|
|
assert(_midi_driver_option == _("CoreMidi"));
|
|
|
|
pthread_mutex_lock (&_process_callback_mutex);
|
|
|
|
for (std::vector<BackendPortPtr>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
|
|
bool found = false;
|
|
for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
|
|
if ((*it)->name() == _midiio->port_id(i, false)) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (found) {
|
|
++it;
|
|
} else {
|
|
#ifndef NDEBUG
|
|
printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
|
|
#endif
|
|
g_atomic_int_set (&_port_change_flag, 1);
|
|
unregister_port((*it));
|
|
it = _system_midi_out.erase(it);
|
|
}
|
|
}
|
|
|
|
for (std::vector<BackendPortPtr>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
|
|
bool found = false;
|
|
for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
|
|
if ((*it)->name() == _midiio->port_id(i, true)) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (found) {
|
|
++it;
|
|
} else {
|
|
#ifndef NDEBUG
|
|
printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
|
|
#endif
|
|
g_atomic_int_set (&_port_change_flag, 1);
|
|
unregister_port((*it));
|
|
it = _system_midi_in.erase(it);
|
|
}
|
|
}
|
|
|
|
for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
|
|
std::string name = _midiio->port_id(i, true);
|
|
if (find_port_in(_system_midi_in, name)) {
|
|
continue;
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
printf("register MIDI Input: %s\n", name.c_str());
|
|
#endif
|
|
PortPtr p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
|
|
if (!p) {
|
|
fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
|
|
continue;
|
|
}
|
|
LatencyRange lr;
|
|
lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
|
|
set_latency_range (p, false, lr);
|
|
BackendPortPtr pp = boost::dynamic_pointer_cast<BackendPort>(p);
|
|
pp->set_hw_port_name(_midiio->port_name(i, true));
|
|
_system_midi_in.push_back(pp);
|
|
g_atomic_int_set (&_port_change_flag, 1);
|
|
}
|
|
|
|
for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
|
|
std::string name = _midiio->port_id(i, false);
|
|
if (find_port_in(_system_midi_out, name)) {
|
|
continue;
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
printf("register MIDI OUT: %s\n", name.c_str());
|
|
#endif
|
|
PortPtr p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
|
|
if (!p) {
|
|
fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
|
|
continue;
|
|
}
|
|
LatencyRange lr;
|
|
lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
|
|
set_latency_range (p, false, lr);
|
|
BackendPortPtr pp = boost::dynamic_pointer_cast<BackendPort>(p);
|
|
pp->set_hw_port_name(_midiio->port_name(i, false));
|
|
_system_midi_out.push_back(pp);
|
|
g_atomic_int_set (&_port_change_flag, 1);
|
|
}
|
|
|
|
|
|
assert(_system_midi_out.size() == _midiio->n_midi_outputs());
|
|
assert(_system_midi_in.size() == _midiio->n_midi_inputs());
|
|
|
|
pthread_mutex_unlock (&_process_callback_mutex);
|
|
}
|
|
|
|
BackendPort*
|
|
CoreAudioBackend::port_factory (std::string const & name, ARDOUR::DataType type, ARDOUR::PortFlags flags)
|
|
{
|
|
BackendPort* port = 0;
|
|
|
|
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 << string_compose (_("%1::register_port: Invalid Data Type."), _instance_name) << endmsg;
|
|
return 0;
|
|
}
|
|
|
|
return port;
|
|
}
|
|
|
|
/* MIDI */
|
|
int
|
|
CoreAudioBackend::midi_event_get (
|
|
pframes_t& timestamp,
|
|
size_t& size, uint8_t const** buf, void* port_buffer,
|
|
uint32_t event_index)
|
|
{
|
|
if (!buf || !port_buffer) return -1;
|
|
CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
|
|
if (event_index >= source.size ()) {
|
|
return -1;
|
|
}
|
|
CoreMidiEvent const& event = source[event_index];
|
|
|
|
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)
|
|
{
|
|
if (!buffer || !port_buffer) return -1;
|
|
if (size >= MaxCoreMidiEventSize) {
|
|
return -1;
|
|
}
|
|
CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
|
|
#ifndef NDEBUG
|
|
if (dst.size () && (pframes_t)dst.back ().timestamp () > timestamp) {
|
|
// nevermind, ::get_buffer() sorts events
|
|
fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
|
|
(pframes_t)dst.back ().timestamp (), timestamp);
|
|
}
|
|
#endif
|
|
dst.push_back (CoreMidiEvent (timestamp, buffer, size));
|
|
return 0;
|
|
}
|
|
|
|
|
|
uint32_t
|
|
CoreAudioBackend::get_midi_event_count (void* port_buffer)
|
|
{
|
|
if (!port_buffer) return 0;
|
|
return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::midi_clear (void* port_buffer)
|
|
{
|
|
if (!port_buffer) return;
|
|
CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(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_handle, bool for_playback, LatencyRange latency_range)
|
|
{
|
|
boost::shared_ptr<BackendPort> port = boost::dynamic_pointer_cast<BackendPort> (port_handle);
|
|
if (!valid_port (port)) {
|
|
DEBUG_TRACE (PBD::DEBUG::BackendPorts, "BackendPort::set_latency_range (): invalid port.");
|
|
return;
|
|
}
|
|
port->set_latency_range (latency_range, for_playback);
|
|
}
|
|
|
|
LatencyRange
|
|
CoreAudioBackend::get_latency_range (PortEngine::PortHandle port_handle, bool for_playback)
|
|
{
|
|
boost::shared_ptr<BackendPort> port = boost::dynamic_pointer_cast<BackendPort> (port_handle);
|
|
LatencyRange r;
|
|
if (!valid_port (port)) {
|
|
DEBUG_TRACE (PBD::DEBUG::BackendPorts, "BackendPort::get_latency_range (): invalid port.");
|
|
r.min = 0;
|
|
r.max = 0;
|
|
return r;
|
|
}
|
|
|
|
r = port->latency_range (for_playback);
|
|
if (port->is_physical() && port->is_terminal() && port->type() == DataType::AUDIO) {
|
|
if (port->is_input() && for_playback) {
|
|
r.min += _samples_per_period;
|
|
r.max += _samples_per_period;
|
|
}
|
|
if (port->is_output() && !for_playback) {
|
|
r.min += _samples_per_period;
|
|
r.max += _samples_per_period;
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
|
|
/* Getting access to the data buffer for a port */
|
|
|
|
void*
|
|
CoreAudioBackend::get_buffer (PortEngine::PortHandle port_handle, pframes_t nframes)
|
|
{
|
|
boost::shared_ptr<BackendPort> port = boost::dynamic_pointer_cast<BackendPort> (port_handle);
|
|
assert (port);
|
|
return port->get_buffer (nframes);
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::pre_process ()
|
|
{
|
|
bool connections_changed = false;
|
|
bool ports_changed = false;
|
|
if (!pthread_mutex_trylock (&_port_callback_mutex)) {
|
|
if (g_atomic_int_compare_and_exchange (&_port_change_flag, 1, 0)) {
|
|
ports_changed = true;
|
|
}
|
|
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) {
|
|
update_system_port_latencies ();
|
|
engine.latency_callback(false);
|
|
engine.latency_callback(true);
|
|
}
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::reset_midi_parsers ()
|
|
{
|
|
for (std::vector<BackendPortPtr>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
|
|
boost::shared_ptr<CoreMidiPort> port = boost::dynamic_pointer_cast<CoreMidiPort>(*it);
|
|
if (port) {
|
|
port->reset_parser ();
|
|
}
|
|
}
|
|
}
|
|
|
|
void *
|
|
CoreAudioBackend::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
|
|
reset_midi_parsers ();
|
|
_midiio->set_enabled(true);
|
|
engine.freewheel_callback (_freewheeling);
|
|
} else {
|
|
first_run = true;
|
|
_freewheel = true;
|
|
}
|
|
}
|
|
|
|
if (!_freewheel || !_freewheel_ack) {
|
|
// wait for a change, we use a timed wait to
|
|
// terminate early in case some error sets _run = 0
|
|
struct timeval tv;
|
|
struct timespec ts;
|
|
gettimeofday (&tv, NULL);
|
|
ts.tv_sec = tv.tv_sec + 3;
|
|
ts.tv_nsec = 0;
|
|
pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
|
|
continue;
|
|
}
|
|
|
|
if (first_run) {
|
|
// tell the engine we're ready to GO.
|
|
engine.freewheel_callback (_freewheeling);
|
|
first_run = false;
|
|
_main_thread = pthread_self();
|
|
AudioEngine::thread_init_callback (this);
|
|
_midiio->set_enabled(false);
|
|
reset_midi_parsers ();
|
|
pbd_mach_set_realtime_policy (_main_thread, 1e9 * _samples_per_period / _samplerate, true);
|
|
}
|
|
|
|
// process port updates first in every cycle.
|
|
pre_process();
|
|
|
|
// prevent coreaudio device changes
|
|
pthread_mutex_lock (&_process_callback_mutex);
|
|
|
|
/* Freewheelin' */
|
|
|
|
// clear input buffers
|
|
for (std::vector<BackendPortPtr>::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<BackendPortPtr>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
|
|
static_cast<CoreMidiBuffer*>((*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("CoreAudio Freehweeling aborted.");
|
|
}
|
|
return 0;
|
|
}
|
|
int
|
|
CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
|
|
{
|
|
uint32_t i = 0;
|
|
uint64_t clock1;
|
|
PBD::TimerRAII tr (dsp_stats[RunLoop]);
|
|
|
|
_active_ca = 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 coreaudio callback
|
|
_dsp_load_calc.reset ();
|
|
return 1;
|
|
}
|
|
|
|
if (_reinit_thread_callback || _main_thread != pthread_self()) {
|
|
_reinit_thread_callback = false;
|
|
_main_thread = pthread_self();
|
|
AudioEngine::thread_init_callback (this);
|
|
pbd_mach_set_realtime_policy (_main_thread, 1e9 * _samples_per_period / _samplerate, true);
|
|
}
|
|
|
|
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<BackendPortPtr>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
|
|
boost::shared_ptr<CoreMidiPort> port = boost::dynamic_pointer_cast<CoreMidiPort> (*it);
|
|
if (!port) {
|
|
continue;
|
|
}
|
|
uint64_t time_ns;
|
|
uint8_t data[MaxCoreMidiEventSize];
|
|
size_t size = sizeof(data);
|
|
|
|
port->clear_events ();
|
|
|
|
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);
|
|
port->parse_events (time, data, size);
|
|
size = sizeof(data); /* prepare for next call to recv_event */
|
|
}
|
|
}
|
|
|
|
/* get audio */
|
|
i = 0;
|
|
for (std::vector<BackendPortPtr>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
|
|
_pcmio->get_capture_channel (i, (float*)(*it)->get_buffer(n_samples), n_samples);
|
|
}
|
|
|
|
/* clear output buffers */
|
|
for (std::vector<BackendPortPtr>::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();
|
|
_last_process_start = host_time;
|
|
|
|
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<BackendPortPtr>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
|
|
(*it)->get_buffer(0);
|
|
}
|
|
|
|
/* queue outgoing midi */
|
|
i = 0;
|
|
for (std::vector<BackendPortPtr>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
|
|
const CoreMidiBuffer *src = boost::dynamic_pointer_cast<CoreMidiPort>(*it)->const_buffer();
|
|
for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
|
|
_midiio->send_event (i, mit->timestamp (), mit->data (), mit->size ());
|
|
}
|
|
}
|
|
|
|
/* write back audio */
|
|
i = 0;
|
|
for (std::vector<BackendPortPtr>::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. */
|
|
_dsp_load_calc.set_max_time (_samplerate, _samples_per_period);
|
|
_dsp_load_calc.set_start_timestamp_us (clock1);
|
|
_dsp_load_calc.set_stop_timestamp_us (g_get_monotonic_time());
|
|
_dsp_load = _dsp_load_calc.get_dsp_load ();
|
|
|
|
pthread_mutex_unlock (&_process_callback_mutex);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::error_callback ()
|
|
{
|
|
_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("CoreAudio Process aborted.");
|
|
_active_ca = false;
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::xrun_callback ()
|
|
{
|
|
engine.Xrun ();
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::buffer_size_callback ()
|
|
{
|
|
uint32_t bs = _pcmio->samples_per_period();
|
|
if (bs == _samples_per_period) {
|
|
return;
|
|
}
|
|
_samples_per_period = bs;
|
|
engine.buffer_size_change (_samples_per_period);
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::sample_rate_callback ()
|
|
{
|
|
if (_preinit) {
|
|
#ifndef NDEBUG
|
|
printf("Samplerate change during initialization.\n");
|
|
#endif
|
|
return;
|
|
}
|
|
_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();
|
|
}
|
|
|
|
void
|
|
CoreAudioBackend::hw_changed_callback ()
|
|
{
|
|
_reinit_thread_callback = true;
|
|
engine.request_device_list_update();
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
static boost::shared_ptr<CoreAudioBackend> _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 = {
|
|
"CoreAudio",
|
|
instantiate,
|
|
deinstantiate,
|
|
backend_factory,
|
|
already_configured,
|
|
available
|
|
};
|
|
|
|
static boost::shared_ptr<AudioBackend>
|
|
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;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
|
|
: BackendPort (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 ()) {
|
|
const std::set<BackendPortPtr>& connections = get_connections ();
|
|
std::set<BackendPortPtr>::const_iterator it = connections.begin ();
|
|
if (it == connections.end ()) {
|
|
memset (_buffer, 0, n_samples * sizeof (Sample));
|
|
} else {
|
|
boost::shared_ptr<const CoreAudioPort> source = boost::dynamic_pointer_cast<const CoreAudioPort>(*it);
|
|
assert (source && source->is_output ());
|
|
memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
|
|
while (++it != connections.end ()) {
|
|
source = boost::dynamic_pointer_cast<const CoreAudioPort>(*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)
|
|
: BackendPort (b, name, flags)
|
|
, _n_periods (1)
|
|
, _bufperiod (0)
|
|
, _event (0, 0)
|
|
, _first_time(true)
|
|
, _unbuffered_bytes(0)
|
|
, _total_bytes(0)
|
|
, _expected_bytes(0)
|
|
, _status_byte(0)
|
|
|
|
{
|
|
_buffer[0].clear ();
|
|
_buffer[1].clear ();
|
|
|
|
_buffer[0].reserve (256);
|
|
_buffer[1].reserve (256);
|
|
}
|
|
|
|
CoreMidiPort::~CoreMidiPort () { }
|
|
|
|
struct MidiEventSorter {
|
|
bool operator() (CoreMidiEvent const& a, CoreMidiEvent const& b) {
|
|
return a < b;
|
|
}
|
|
};
|
|
|
|
void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
|
|
{
|
|
if (is_input ()) {
|
|
(_buffer[_bufperiod]).clear ();
|
|
const std::set<BackendPortPtr>& connections = get_connections ();
|
|
for (std::set<BackendPortPtr>::const_iterator i = connections.begin ();
|
|
i != connections.end ();
|
|
++i) {
|
|
const CoreMidiBuffer * src = boost::dynamic_pointer_cast<const CoreMidiPort>(*i)->const_buffer ();
|
|
for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
|
|
(_buffer[_bufperiod]).push_back (*it);
|
|
}
|
|
}
|
|
std::stable_sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
|
|
}
|
|
|
|
return &(_buffer[_bufperiod]);
|
|
}
|
|
|
|
int
|
|
CoreMidiPort::queue_event (
|
|
void* port_buffer,
|
|
pframes_t timestamp,
|
|
const uint8_t* buffer, size_t size)
|
|
{
|
|
const int ret = CoreAudioBackend::_midi_event_put (port_buffer, timestamp, buffer, size);
|
|
if (!ret) { /* success */
|
|
_event._pending = false;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
CoreMidiPort::reset_parser ()
|
|
{
|
|
_event._pending = false;
|
|
_first_time = true;
|
|
_unbuffered_bytes = 0;
|
|
_total_bytes = 0;
|
|
_expected_bytes = 0;
|
|
_status_byte = 0;
|
|
}
|
|
|
|
void
|
|
CoreMidiPort::clear_events ()
|
|
{
|
|
CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
|
|
mbuf->clear();
|
|
}
|
|
|
|
void
|
|
CoreMidiPort::parse_events (const uint64_t time, const uint8_t *data, const size_t size)
|
|
{
|
|
CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
|
|
|
|
if (_event._pending) {
|
|
if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (size_t i = 0; i < size; ++i) {
|
|
if (_first_time && !(data[i] & 0x80)) {
|
|
continue;
|
|
}
|
|
|
|
_first_time = false;
|
|
|
|
if (process_byte(time, data[i])) {
|
|
if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// based on JackMidiRawInputWriteQueue by Devin Anderson //
|
|
bool
|
|
CoreMidiPort::process_byte(const uint64_t time, const uint8_t byte)
|
|
{
|
|
if (byte >= 0xf8) {
|
|
// Realtime
|
|
if (byte == 0xfd) {
|
|
return false;
|
|
}
|
|
_parser_buffer[0] = byte;
|
|
prepare_byte_event(time, byte);
|
|
return true;
|
|
}
|
|
if (byte == 0xf7) {
|
|
// Sysex end
|
|
if (_status_byte == 0xf0) {
|
|
record_byte(byte);
|
|
return prepare_buffered_event(time);
|
|
}
|
|
_total_bytes = 0;
|
|
_unbuffered_bytes = 0;
|
|
_expected_bytes = 0;
|
|
_status_byte = 0;
|
|
return false;
|
|
}
|
|
if (byte >= 0x80) {
|
|
// Non-realtime status byte
|
|
if (_total_bytes) {
|
|
printf ("CoreMidiPort: discarded bogus midi message\n");
|
|
#if 0
|
|
for (size_t i=0; i < _total_bytes; ++i) {
|
|
printf("%02x ", _parser_buffer[i]);
|
|
}
|
|
printf("\n");
|
|
#endif
|
|
_total_bytes = 0;
|
|
_unbuffered_bytes = 0;
|
|
}
|
|
_status_byte = byte;
|
|
switch (byte & 0xf0) {
|
|
case 0x80:
|
|
case 0x90:
|
|
case 0xa0:
|
|
case 0xb0:
|
|
case 0xe0:
|
|
// Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
|
|
_expected_bytes = 3;
|
|
break;
|
|
case 0xc0:
|
|
case 0xd0:
|
|
// Program Change, Channel Pressure
|
|
_expected_bytes = 2;
|
|
break;
|
|
case 0xf0:
|
|
switch (byte) {
|
|
case 0xf0:
|
|
// Sysex
|
|
_expected_bytes = 0;
|
|
break;
|
|
case 0xf1:
|
|
case 0xf3:
|
|
// MTC Quarter Frame, Song Select
|
|
_expected_bytes = 2;
|
|
break;
|
|
case 0xf2:
|
|
// Song Position
|
|
_expected_bytes = 3;
|
|
break;
|
|
case 0xf4:
|
|
case 0xf5:
|
|
// Undefined
|
|
_expected_bytes = 0;
|
|
_status_byte = 0;
|
|
return false;
|
|
case 0xf6:
|
|
// Tune Request
|
|
prepare_byte_event(time, byte);
|
|
_expected_bytes = 0;
|
|
_status_byte = 0;
|
|
return true;
|
|
}
|
|
}
|
|
record_byte(byte);
|
|
return false;
|
|
}
|
|
// Data byte
|
|
if (! _status_byte) {
|
|
// Data bytes without a status will be discarded.
|
|
_total_bytes++;
|
|
_unbuffered_bytes++;
|
|
return false;
|
|
}
|
|
if (! _total_bytes) {
|
|
record_byte(_status_byte);
|
|
}
|
|
record_byte(byte);
|
|
return (_total_bytes == _expected_bytes) ? prepare_buffered_event(time) : false;
|
|
}
|
|
|
|
|
|
CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
|
|
: _size (size)
|
|
, _timestamp (timestamp)
|
|
{
|
|
if (size > 0 && size < MaxCoreMidiEventSize) {
|
|
memcpy (_data, data, size);
|
|
}
|
|
}
|
|
|
|
CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
|
|
: _size (other.size ())
|
|
, _timestamp (other.timestamp ())
|
|
{
|
|
if (other._size > 0) {
|
|
assert (other._size < MaxCoreMidiEventSize);
|
|
memcpy (_data, other._data, other._size);
|
|
}
|
|
};
|