2 Copyright (C) 2014 Waves Audio Ltd.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include "waves_audiobackend.h"
21 #include "waves_audioport.h"
22 #include "waves_midiport.h"
24 #include "ardour/runtime_functions.h"
26 using namespace ARDOUR;
28 #if defined __MINGW64__ || defined __MINGW32__
29 extern "C" __declspec(dllexport) ARDOUR::AudioBackendInfo* descriptor ()
31 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
34 // COMMENTED DBG LOGS */ std::cout << "waves_backend.dll : ARDOUR::AudioBackendInfo* descriptor (): " << std::endl;
35 return &WavesAudioBackend::backend_info ();
38 void WavesAudioBackend::AudioDeviceManagerNotification (NotificationReason reason, void* parameter)
41 case WCMRAudioDeviceManagerClient::DeviceDebugInfo:
42 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceDebugInfo -- " << (char*)parameter << std::endl;
44 case WCMRAudioDeviceManagerClient::BufferSizeChanged:
45 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::BufferSizeChanged: " << *(int*)parameter << std::endl;
46 _buffer_size_change(*(int*)parameter);
48 case WCMRAudioDeviceManagerClient::RequestReset:
49 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::RequestReset" << std::endl;
50 engine.request_backend_reset();
52 case WCMRAudioDeviceManagerClient::RequestResync:
53 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::RequestResync" << std::endl;
55 case WCMRAudioDeviceManagerClient::SamplingRateChanged:
56 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::SamplingRateChanged: " << *(float*)parameter << std::endl;
57 _sample_rate_change(*(float*)parameter);
59 case WCMRAudioDeviceManagerClient::Dropout:
60 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::Dropout: " << std::endl;
62 case WCMRAudioDeviceManagerClient::DeviceDroppedSamples:
63 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceDroppedSamples" << std::endl;
65 case WCMRAudioDeviceManagerClient::DeviceStoppedStreaming:
66 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceStoppedStreaming" << std::endl;
68 case WCMRAudioDeviceManagerClient::DeviceStartsStreaming:
69 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceStartsStreaming" << std::endl;
70 _call_thread_init_callback = true; // streaming will be started from device side, just set thread init flag
72 case WCMRAudioDeviceManagerClient::DeviceConnectionLost:
73 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceConnectionLost" << std::endl;
75 case WCMRAudioDeviceManagerClient::DeviceListChanged:
76 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceListChanged" << std::endl;
77 engine.request_device_list_update();
79 case WCMRAudioDeviceManagerClient::IODeviceDisconnected:
80 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::IODeviceDisconnected" << std::endl;
81 engine.request_device_list_update();
83 case WCMRAudioDeviceManagerClient::AudioCallback:
85 const AudioCallbackData* audio_callback_data = (AudioCallbackData*)parameter;
86 _audio_device_callback (
87 audio_callback_data->acdInputBuffer,
88 audio_callback_data->acdOutputBuffer,
89 audio_callback_data->acdFrames,
90 audio_callback_data->acdSampleTime,
91 audio_callback_data->acdCycleStartTimeNanos
102 WavesAudioBackend::WavesAudioBackend (AudioEngine& e)
103 : AudioBackend (e, __backend_info)
104 , _audio_device_manager (this)
105 , _midi_device_manager (*this)
107 , _sample_format (FormatFloat)
108 , _interleaved (true)
109 , _input_channels (0)
110 , _max_input_channels (0)
111 , _output_channels (0)
112 , _max_output_channels (0)
115 , _systemic_input_latency (0)
116 , _systemic_output_latency (0)
117 , _call_thread_init_callback (false)
119 , _sample_time_at_cycle_start (0)
120 , _freewheeling (false)
121 , _freewheel_thread_active (false)
122 , _dsp_load_accumulator (0)
123 , _audio_cycle_period_nanos (0)
124 , _dsp_load_history_length(0)
129 WavesAudioBackend::~WavesAudioBackend ()
135 WavesAudioBackend::name () const
138 return std::string ("CoreAudio");
139 #elif PLATFORM_WINDOWS
140 return std::string ("ASIO");
146 WavesAudioBackend::is_realtime () const
153 WavesAudioBackend::requires_driver_selection () const
159 std::vector<std::string>
160 WavesAudioBackend::enumerate_drivers () const
162 // this backend does not suppose driver selection
165 return std::vector<std::string> ();
170 WavesAudioBackend::set_driver (const std::string& /*drivername*/)
172 //Waves audio backend does not suppose driver selection
179 std::vector<AudioBackend::DeviceStatus>
180 WavesAudioBackend::enumerate_devices () const
182 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::enumerate_devices (): " << std::endl;
184 std::vector<DeviceStatus> devicesStatus;
185 const DeviceInfoVec& deviceInfoList = _audio_device_manager.DeviceInfoList();
187 for (DeviceInfoVecConstIter deviceInfoIter = deviceInfoList.begin (); deviceInfoIter != deviceInfoList.end (); ++deviceInfoIter) {
188 // COMMENTED DBG LOGS */ std::cout << "\t Device found: " << (*deviceInfoIter)->m_DeviceName << std::endl;
189 devicesStatus.push_back (DeviceStatus ((*deviceInfoIter)->m_DeviceName, true));
192 return devicesStatus;
197 WavesAudioBackend::available_sample_rates (const std::string& device_name) const
199 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_sample_rates (): [" << device_name << "]" << std::endl;
203 WTErr retVal = _audio_device_manager.GetDeviceSampleRates(device_name, sr);
205 if (eNoErr != retVal) {
206 std::cerr << "WavesAudioBackend::available_sample_rates (): Failed to find device [" << device_name << "]" << std::endl;
207 return std::vector<float> ();
210 // COMMENTED DBG LOGS */ std::cout << "\tFound " << devInfo.m_AvailableSampleRates.size () << " sample rates for " << device_name << ":";
212 std::vector<float> sample_rates (sr.begin (), sr.end ());
214 // COMMENTED DBG LOGS */ for (std::vector<float>::iterator i = sample_rates.begin (); i != sample_rates.end (); ++i) std::cout << " " << *i; std::cout << std::endl;
220 float WavesAudioBackend::default_sample_rate () const
222 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::default_sample_rate (): " << AudioBackend::default_sample_rate () << std::endl;
223 return AudioBackend::default_sample_rate ();
227 std::vector<uint32_t>
228 WavesAudioBackend::available_buffer_sizes (const std::string& device_name) const
230 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_buffer_sizes (): [" << device_name << "]" << std::endl;
234 WTErr retVal = _audio_device_manager.GetDeviceBufferSizes(device_name, bs);
236 if (retVal != eNoErr) {
237 std::cerr << "WavesAudioBackend::available_buffer_sizes (): Failed to get buffer size for device [" << device_name << "]" << std::endl;
238 return std::vector<uint32_t> ();
241 std::vector<uint32_t> buffer_sizes (bs.begin (), bs.end ());
243 // COMMENTED DBG LOGS */ std::cout << "\tFound " << buffer_sizes.size () << " buffer sizes for " << device_name << ":";
244 // COMMENTED DBG LOGS */ for (std::vector<uint32_t>::const_iterator i = buffer_sizes.begin (); i != buffer_sizes.end (); ++i) std::cout << " " << *i; std::cout << std::endl;
251 WavesAudioBackend::available_input_channel_count (const std::string& device_name) const
254 WTErr err = _audio_device_manager.GetDeviceInfoByName(device_name, devInfo);
257 std::cerr << "WavesAudioBackend::available_input_channel_count (): Failed to find device [" << device_name << "]" << std::endl;
261 uint32_t num_of_input_channels = devInfo.m_MaxInputChannels;
263 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_input_channel_count (): " << num_of_input_channels << std::endl;
264 return num_of_input_channels;
269 WavesAudioBackend::available_output_channel_count (const std::string& device_name) const
272 WTErr err = _audio_device_manager.GetDeviceInfoByName(device_name, devInfo);
275 std::cerr << "WavesAudioBackend::available_output_channel_count (): Failed to find device [" << device_name << "]" << std::endl;
279 uint32_t num_of_output_channels = devInfo.m_MaxOutputChannels;
281 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_output_channel_count (): " << num_of_output_channels << std::endl;
283 return num_of_output_channels;
288 WavesAudioBackend::can_change_sample_rate_when_running () const
290 // VERIFY IT CAREFULLY
296 WavesAudioBackend::can_change_buffer_size_when_running () const
298 // VERIFY IT CAREFULLY
304 WavesAudioBackend::set_device_name (const std::string& device_name)
306 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_device_name (): " << device_name << std::endl;
308 if (_ports.size ()) {
309 std::cerr << "WavesAudioBackend::set_device_name (): There are unregistered ports left after [" << (_device ? _device->DeviceName () : std::string ("<NULL>")) << "]!" << std::endl;
310 for (size_t i = 0; i < _ports.size (); ++i) {
311 std::cerr << "\t[" << _ports[i]->name () << "]!" << std::endl;
316 if (_device && _device->Streaming () ) {
317 std::cerr << "WavesAudioBackend::set_device_name (): [" << _device->DeviceName () << "] is streaming! Current device must be stopped before setting another device as current" << std::endl;
320 // we must have only one device initialized at a time
321 // stop current device first
324 retVal = _device->SetActive (false);
325 if (retVal != eNoErr) {
326 std::cerr << "WavesAudioBackend::set_device_name (): [" << _device->DeviceName () << "]->SetActive (false) failed!" << std::endl;
332 _audio_device_manager.DestroyCurrentDevice();
335 WCMRAudioDevice * device = _audio_device_manager.InitNewCurrentDevice(device_name);
338 std::cerr << "WavesAudioBackend::set_device_name (): Failed to initialize device [" << device_name << "]!" << std::endl;
343 retVal = device->SetActive (true);
344 if (retVal != eNoErr) {
345 std::cerr << "WavesAudioBackend::set_device_name (): [" << device->DeviceName () << "]->SetActive () failed!" << std::endl;
355 WavesAudioBackend::drop_device()
361 wtErr = _device->SetActive (false);
362 if (wtErr != eNoErr) {
363 std::cerr << "WavesAudioBackend::drop_device (): [" << _device->DeviceName () << "]->SetActive () failed!" << std::endl;
368 _audio_device_manager.DestroyCurrentDevice();
376 WavesAudioBackend::set_sample_rate (float sample_rate)
378 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_sample_rate (): " << sample_rate << std::endl;
380 WTErr retVal = eNoErr;
383 std::cerr << "WavesAudioBackend::set_sample_rate (): No device is set!" << std::endl;
388 bool device_needs_restart = _device->Streaming ();
390 if (device_needs_restart) {
391 retVal = _device->SetStreaming (false);
392 // COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->_device->SetStreaming (false);"<< std::endl;
393 if (retVal != eNoErr) {
394 std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName () << "]->SetStreaming (false) failed (" << retVal << ") !" << std::endl;
399 retVal = _device->SetCurrentSamplingRate ((int)sample_rate);
401 if (retVal != eNoErr) {
402 std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName() << "]->SetCurrentSamplingRate ((int)" << sample_rate << ") failed (" << retVal << ") !" << std::endl;
406 // if call to set sample rate is successful
407 // but device sample rate differs from the value we tried to set
408 // this means we are driven by device for buffer size
409 sample_rate = _device->CurrentSamplingRate ();
410 _sample_rate_change(sample_rate);
412 if (device_needs_restart) {
413 // COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (true);"<< std::endl;
414 retVal = _device->SetStreaming (true);
415 if (retVal != eNoErr) {
416 std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName () << "]->SetStreaming (true) failed (" << retVal << ") !" << std::endl;
425 WavesAudioBackend::set_buffer_size (uint32_t buffer_size)
427 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_buffer_size (" << buffer_size << "):"<< std::endl;
429 WTErr retVal = eNoErr;
432 std::cerr << "WavesAudioBackend::set_buffer_size (): No device is set!" << std::endl;
436 bool device_needs_restart = _device->Streaming ();
438 if (device_needs_restart) {
439 retVal = _device->SetStreaming (false);
440 // COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (false);"<< std::endl;
441 if (retVal != eNoErr) {
442 std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName () << "]->SetStreaming (false) failed (" << retVal << ") !" << std::endl;
447 retVal = _device->SetCurrentBufferSize (buffer_size);
449 if (retVal != eNoErr) {
450 std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName() << "]->SetCurrentBufferSize (" << buffer_size << ") failed (" << retVal << ") !" << std::endl;
454 // if call to set buffer is successful but device buffer size differs from the value we tried to set
455 // this means we are driven by device for buffer size
456 buffer_size = _device->CurrentBufferSize ();
458 _buffer_size_change(buffer_size);
460 if (device_needs_restart) {
461 // COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (true);"<< std::endl;
462 retVal = _device->SetStreaming (true);
463 if (retVal != eNoErr) {
464 std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName () << "]->SetStreaming (true) failed (" << retVal << ") !" << std::endl;
474 WavesAudioBackend::set_sample_format (SampleFormat sample_format)
476 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_sample_format (): " << sample_format << std::endl;
478 _sample_format = sample_format;
483 WavesAudioBackend::reset_device ()
485 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_reset_device ():" << std::endl;
488 std::cerr << "WavesAudioBackend::set_buffer_size (): No device is set!" << std::endl;
492 return _device->ResetDevice();
497 WavesAudioBackend::_buffer_size_change (uint32_t new_buffer_size)
499 _buffer_size = new_buffer_size;
500 _init_dsp_load_history();
501 return engine.buffer_size_change (new_buffer_size);
506 WavesAudioBackend::_sample_rate_change (float new_sample_rate)
508 _sample_rate = new_sample_rate;
509 _init_dsp_load_history();
510 return engine.sample_rate_change (new_sample_rate);
515 WavesAudioBackend::set_interleaved (bool yn)
517 /*you can ignore them totally*/
524 WavesAudioBackend::set_input_channels (uint32_t input_channels)
526 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_input_channels (): " << input_channels << std::endl;
528 _input_channels = input_channels;
534 WavesAudioBackend::set_output_channels (uint32_t output_channels)
536 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_output_channels (): " << output_channels << std::endl;
538 _output_channels = output_channels;
544 WavesAudioBackend::device_name () const
549 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::device_name (): " << _device->DeviceName () << std::endl;
551 return _device->DeviceName ();
556 WavesAudioBackend::sample_rate () const
558 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::sample_rate (): " << std::endl;
561 std::cerr << "WavesAudioBackend::sample_rate (): No device is set!" << std::endl;
565 int sample_rate = _device->CurrentSamplingRate ();
567 // COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]->CurrentSamplingRate () returned " << sample_rate << std::endl;
569 return (float)sample_rate;
574 WavesAudioBackend::buffer_size () const
577 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::buffer_size (): " << std::endl;
580 std::cerr << "WavesAudioBackend::buffer_size (): No device is set!" << std::endl;
584 int size = _device->CurrentBufferSize ();
586 // COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]->CurrentBufferSize () returned " << size << std::endl;
588 return (uint32_t)size;
593 WavesAudioBackend::sample_format () const
595 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::sample_format ()" << std::endl;
596 return _sample_format;
601 WavesAudioBackend::interleaved () const
603 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::interleaved ()" << std::endl;
610 WavesAudioBackend::input_channels () const
612 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::input_channels ()" << std::endl;
614 return _input_channels;
619 WavesAudioBackend::output_channels () const
621 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::output_channels ()" << std::endl;
623 return _output_channels;
628 WavesAudioBackend::control_app_name () const
630 std::string app_name = "";
632 if (_device && !dynamic_cast<WCMRNativeAudioNoneDevice*> (_device)) {
633 app_name = "PortAudioMayKnowIt";
641 WavesAudioBackend::launch_control_app ()
643 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::launch_control_app ()" << std::endl;
645 std::cerr << "WavesAudioBackend::launch_control_app (): No device is set!" << std::endl;
649 WTErr err = _device->ShowConfigPanel (NULL);
652 std::cerr << "WavesAudioBackend::launch_control_app (): [" << _device->DeviceName () << "]->ShowConfigPanel () failed (" << err << ")!" << std::endl;
655 // COMMENTED DBG LOGS */ else std::cout << "WavesAudioBackend::launch_control_app (): [" << _device->DeviceName () << "]->ShowConfigPanel () successfully launched!" << std::endl;
660 WavesAudioBackend::_start (bool for_latency_measurement)
662 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_start ()" << std::endl;
665 std::cerr << "WavesAudioBackend::_start (): No device is set!" << std::endl;
670 if (_register_system_audio_ports () != 0) {
671 std::cerr << "WavesAudioBackend::_start (): _register_system_audio_ports () failed!" << std::endl;
677 if (_midi_device_manager.start () != 0) {
678 std::cerr << "WavesAudioBackend::_start (): _midi_device_manager.start () failed!" << std::endl;
682 if (_register_system_midi_ports () != 0) {
683 std::cerr << "WavesAudioBackend::_start (): _register_system_midi_ports () failed!" << std::endl;
689 if (engine.reestablish_ports () != 0) {
690 std::cerr << "WavesAudioBackend::_start (): engine.reestablish_ports () failed!" << std::endl;
693 manager.registration_callback ();
695 WTErr retVal = _device->SetStreaming (true);
696 if (retVal != eNoErr) {
697 std::cerr << "WavesAudioBackend::_start (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
703 if (_midi_device_manager.stream (true)) {
704 std::cerr << "WavesAudioBackend::_start (): _midi_device_manager.stream (true) failed!" << std::endl;
715 WavesAudioBackend::_audio_device_callback (const float* input_buffer,
716 float* output_buffer,
717 unsigned long nframes,
718 framepos_t sample_time,
719 uint64_t cycle_start_time_nanos)
721 uint64_t dsp_start_time_nanos = __get_time_nanos();
722 // COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::_audio_device_callback ():" << _device->DeviceName () << std::endl;
723 _sample_time_at_cycle_start = sample_time;
724 _cycle_start_time_nanos = cycle_start_time_nanos;
726 if (_buffer_size != nframes) {
727 // COMMENTED DBG LOGS */ std::cout << "\tAudioEngine::thread_init_callback() buffer size and nframes are not equal: " << _buffer_size << "!=" << nframes << std::endl;
731 _read_audio_data_from_device (input_buffer, nframes);
732 _read_midi_data_from_devices ();
734 if (_call_thread_init_callback) {
735 _call_thread_init_callback = false;
736 // COMMENTED DBG LOGS */ std::cout << "\tAudioEngine::thread_init_callback() invoked for " << std::hex << pthread_self() << std::dec << " !" << std::endl;
738 /* There is the possibility that the thread this runs in may change from
739 * callback to callback, so do it every time.
741 _main_thread = pthread_self ();
743 AudioEngine::thread_init_callback (this);
746 if ( !engine.thread_initialised_for_audio_processing () ) {
747 std::cerr << "\tWavesAudioBackend::_audio_device_callback (): It's an attempt to call process callback from the thread which didn't initialize it " << std::endl;
749 AudioEngine::thread_init_callback (this);
752 if (_main_thread != pthread_self() ) {
753 std::cerr << "Process thread ID has changed. Expected thread: " << _main_thread << " current thread: " << pthread_self() << std::dec << " !" << std::endl;
754 _main_thread = pthread_self();
757 engine.process_callback (nframes);
759 _write_audio_data_to_device (output_buffer, nframes);
760 _write_midi_data_to_devices (nframes);
762 uint64_t dsp_end_time_nanos = __get_time_nanos();
764 _dsp_load_accumulator -= *_dsp_load_history.begin();
765 _dsp_load_history.pop_front();
766 uint64_t dsp_load_nanos = dsp_end_time_nanos - dsp_start_time_nanos;
767 _dsp_load_accumulator += dsp_load_nanos;
768 _dsp_load_history.push_back(dsp_load_nanos);
775 WavesAudioBackend::stop ()
777 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::stop ()" << std::endl;
779 WTErr wtErr = eNoErr;
782 // COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]" << std::endl;
785 wtErr = _device->SetStreaming (false);
786 if (wtErr != eNoErr) {
787 std::cerr << "WavesAudioBackend::stop (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
792 _midi_device_manager.stop ();
793 _unregister_system_audio_ports ();
794 _unregister_system_midi_ports ();
801 WavesAudioBackend::freewheel (bool start_stop)
803 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::freewheel (" << start_stop << "):" << std::endl;
805 if (start_stop != _freewheeling) {
806 if (start_stop == true) {
807 WTErr retval = _device->SetStreaming (false);
808 if (retval != eNoErr) {
809 std::cerr << "WavesAudioBackend::freewheel (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
812 _call_thread_init_callback = true;
813 _freewheel_thread ();
815 while (!engine.freewheeling()) {
819 // freewheel thread was not activated successfully
820 if (_freewheel_thread_active == false) {
821 engine.freewheel_callback(false);
825 _freewheel_thread_active = false; // stop _freewheel_thread ()
827 while (engine.freewheeling()) {
831 _call_thread_init_callback = true;
832 WTErr retval = _device->SetStreaming (true);
833 if (retval != eNoErr) {
834 std::cerr << "WavesAudioBackend::freewheel (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
838 _freewheeling = start_stop;
840 // already doing what has been asked for
846 WavesAudioBackend::_freewheel_thread ()
848 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_freewheel_thread ():" << std::endl;
849 if (!_freewheel_thread_active) { // Lets create it
851 // COMMENTED DBG LOGS */ std::cout << "\tCreating the thread _freewheel_thread () . . ." << std::endl;
852 pthread_attr_t attributes;
855 ThreadData* thread_data = new ThreadData (this, boost::bind (&WavesAudioBackend::_freewheel_thread, this), __thread_stack_size ());
857 if (pthread_attr_init (&attributes)) {
858 std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_attr_init () failed!" << std::endl;
862 if (pthread_attr_setstacksize (&attributes, __thread_stack_size ())) {
863 std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_attr_setstacksize () failed!" << std::endl;
867 _freewheel_thread_active = true;
868 if ((pthread_create (&thread_id, &attributes, __start_process_thread, thread_data))) {
869 _freewheel_thread_active = false;
871 // release invoking thread
872 engine.freewheel_callback(true);
874 std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_create () failed!" << std::endl;
878 // COMMENTED DBG LOGS */ std::cout << "\t. . . _freewheel_thread () complete." << std::endl;
882 // notify angine that freewheeling is started
883 engine.freewheel_callback(true);
885 if (_call_thread_init_callback) {
886 _call_thread_init_callback = false;
887 AudioEngine::thread_init_callback (this);
890 while (_freewheel_thread_active) {
891 engine.process_callback (_buffer_size);
894 // notify angine that freewheeling is stopped
895 engine.freewheel_callback(false);
897 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_freewheel_thread (): FINISHED" << std::endl;
903 WavesAudioBackend::dsp_load () const
905 // COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::dsp_load (): " << std::endl;
908 std::cerr << "WavesAudioBackend::cpu_load (): No device is set!" << std::endl;
912 float average_dsp_load = (float)_dsp_load_accumulator/_dsp_load_history_length;
914 return ( average_dsp_load / _audio_cycle_period_nanos)*100.0;
919 WavesAudioBackend::_init_dsp_load_history()
921 if((_sample_rate <= 0.0) || (_buffer_size <= 0.0)) {
925 _audio_cycle_period_nanos = ((uint64_t)1000000000L * _buffer_size) / _sample_rate;
927 _dsp_load_accumulator = 0;
929 _dsp_load_history_length = (_sample_rate + _buffer_size - 1) / _buffer_size;
930 // COMMENTED DBG LOGS */ std::cout << "\t\t_dsp_load_history_length = " << _dsp_load_history_length << std::endl;
931 _dsp_load_history = std::list<uint64_t>(_dsp_load_history_length, 0);
936 WavesAudioBackend::transport_start ()
938 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_start (): " << std::endl;
943 WavesAudioBackend::transport_stop ()
945 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_stop (): " << std::endl;
950 WavesAudioBackend::transport_state () const
952 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_state (): " << std::endl;
953 return TransportStopped;
958 WavesAudioBackend::transport_locate (framepos_t pos)
960 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_locate (" << pos << "): " << std::endl;
965 WavesAudioBackend::transport_frame () const
967 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_frame (): " << std::endl;
973 WavesAudioBackend::set_time_master (bool yn)
975 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_time_master (): " << yn << std::endl;
981 WavesAudioBackend::usecs_per_cycle () const
983 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::usecs_per_cycle (): " << std::endl;
984 return (1000000 * _sample_rate) / _buffer_size;
989 WavesAudioBackend::raw_buffer_size (DataType data_type)
991 // COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::raw_buffer_size (" << data_type.to_string () << "): " << std::endl;
993 case DataType::AUDIO:
994 return WavesAudioPort::MAX_BUFFER_SIZE_BYTES;
998 return WavesMidiPort::MAX_BUFFER_SIZE_BYTES;
1002 std::cerr << "WavesAudioBackend::raw_buffer_size (): unexpected data type (" << (uint32_t)data_type <<")!" << std::endl;
1010 WavesAudioBackend::sample_time ()
1012 // WARNING: This is approximate calculation. Implementation of accurate calculation is pending.
1013 // http://kokkinizita.linuxaudio.org/papers/usingdll.pdf
1015 return _sample_time_at_cycle_start + ((__get_time_nanos () - _cycle_start_time_nanos)*_sample_rate)/1000000000L;
1020 WavesAudioBackend::__get_time_nanos ()
1023 // here we exploit the time counting API which is used by the WCMRCoreAudioDeviceManager. However,
1024 // the API should be a part of WCMRCoreAudioDeviceManager to give a chance of being tied to the
1025 // audio device transport timeß.
1026 return AudioConvertHostTimeToNanos (AudioGetCurrentHostTime ());
1028 #elif PLATFORM_WINDOWS
1029 LARGE_INTEGER Count;
1030 QueryPerformanceCounter (&Count);
1031 return uint64_t ((Count.QuadPart * 1000000000L / __performance_counter_frequency));
1037 WavesAudioBackend::sample_time_at_cycle_start ()
1039 // COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::sample_time_at_cycle_start (): " << _sample_time_at_cycle_start << std::endl;
1040 return _sample_time_at_cycle_start;
1045 WavesAudioBackend::samples_since_cycle_start ()
1047 pframes_t diff_sample_time;
1048 diff_sample_time = sample_time () - _sample_time_at_cycle_start;
1049 // COMMENTED DBG LOGS */ std::cout << "samples_since_cycle_start: " << diff_sample_time << std::endl;
1051 return diff_sample_time;
1056 WavesAudioBackend::get_sync_offset (pframes_t& /*offset*/) const
1058 // COMMENTED DBG LOGS */ std::cout << "get_sync_offset: false" << std::endl;
1065 WavesAudioBackend::create_process_thread (boost::function<void ()> func)
1067 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::create_process_thread ():" << std::endl;
1069 pthread_attr_t attributes;
1070 size_t stacksize_aligned;
1071 pthread_t thread_id;
1073 // Align stacksize to PTHREAD_STACK_MIN.
1074 stacksize_aligned = __thread_stack_size ();
1076 ThreadData* td = new ThreadData (this, func, stacksize_aligned);
1078 if ((retVal = pthread_attr_init (&attributes))) {
1079 std::cerr << "Cannot set thread attr init res = " << retVal << endmsg;
1083 if ((retVal = pthread_attr_setstacksize (&attributes, stacksize_aligned))) {
1084 std::cerr << "Cannot set thread stack size (" << stacksize_aligned << ") res = " << retVal << endmsg;
1088 if ((retVal = pthread_create (&thread_id, &attributes, __start_process_thread, td))) {
1089 std::cerr << "Cannot create thread res = " << retVal << endmsg;
1093 _backend_threads.push_back (thread_id);
1094 // COMMENTED DBG LOGS */ std::cout << "\t\t\t. . . thread " << std::hex << thread_id << std::dec << " has been created" << std::endl;
1101 WavesAudioBackend::__start_process_thread (void* arg)
1103 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__start_process_thread ():" << std::endl;
1104 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
1105 boost::function<void ()> f = td->f;
1113 WavesAudioBackend::join_process_threads ()
1115 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::join_process_thread ()" << std::endl;
1118 for (std::vector<pthread_t>::const_iterator i = _backend_threads.begin ();
1119 i != _backend_threads.end ();
1121 // COMMENTED DBG LOGS */ std::cout << "\t\t\tstopping thread " << std::hex << *i << std::dec << "...\n";
1124 if (pthread_join (*i, &status) != 0) {
1125 std::cerr << "AudioEngine: cannot stop process thread !" << std::endl;
1128 // COMMENTED DBG LOGS */ std::cout << "\t\t\t\t...done" << std::endl;
1130 // COMMENTED DBG LOGS */ std::cout << "\t\t\tall threads finished..." << std::endl;
1131 _backend_threads.clear ();
1132 // COMMENTED DBG LOGS */ std::cout << "\t\t\tthread list cleared..." << std::endl;
1139 WavesAudioBackend::in_process_thread ()
1141 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::in_process_thread ()" << std::endl;
1142 if (pthread_equal (_main_thread, pthread_self()) != 0) {
1145 for (std::vector<pthread_t>::const_iterator i = _backend_threads.begin ();
1146 i != _backend_threads.end (); i++) {
1147 if (pthread_equal (*i, pthread_self ()) != 0) {
1156 WavesAudioBackend::__thread_stack_size ()
1158 // Align stacksize to PTHREAD_STACK_MIN.
1159 #if defined (__APPLE__)
1160 return (((thread_stack_size () - 1) / PTHREAD_STACK_MIN) + 1) * PTHREAD_STACK_MIN;
1161 #elif defined (PLATFORM_WINDOWS)
1162 return thread_stack_size ();
1168 WavesAudioBackend::process_thread_count ()
1170 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::process_thread_count (): returns " << _backend_threads.size () << std::endl;
1171 return _backend_threads.size ();
1176 WavesAudioBackend::_read_audio_data_from_device (const float* input_buffer, pframes_t nframes)
1178 #if defined(PLATFORM_WINDOWS)
1179 const float **buffer = (const float**)input_buffer;
1181 for(std::vector<WavesAudioPort*>::iterator it = _physical_audio_inputs.begin ();
1182 it != _physical_audio_inputs.end();
1185 ARDOUR::copy_vector ((*it)->buffer(), *buffer, nframes);
1189 std::vector<WavesAudioPort*>::iterator it = _physical_audio_inputs.begin ();
1191 // Well, let's de-interleave here:
1192 const Sample* source = input_buffer;
1194 for (uint32_t chann_cnt = 0; (chann_cnt < _max_input_channels) && (it != _physical_audio_inputs.end ()); ++chann_cnt, ++source, ++it) {
1195 const Sample* src = source;
1196 Sample* tgt = (*it)->buffer ();
1198 for (uint32_t frame = 0; frame < nframes; ++frame, src += _max_input_channels, ++tgt) {
1206 WavesAudioBackend::_write_audio_data_to_device (float* output_buffer, pframes_t nframes)
1208 #if defined(_WnonononoINDOWS)
1209 float **buffer = (float**)output_buffer;
1210 size_t copied_bytes = nframes*sizeof(float);
1212 for(std::vector<WavesAudioPort*>::iterator it = _physical_audio_outputs.begin ();
1213 it != _physical_audio_outputs.end();
1216 memcpy(*buffer, (*it)->buffer(), copied_bytes);
1217 //*buffer = (*it)->buffer();
1221 // Well, let's interleave here:
1222 std::vector<WavesAudioPort*>::iterator it = _physical_audio_outputs.begin ();
1223 Sample* target = output_buffer;
1225 for (uint32_t chann_cnt = 0;
1226 (chann_cnt < _max_output_channels) && (it != _physical_audio_outputs.end ());
1227 ++chann_cnt, ++target, ++it) {
1228 const Sample* src = (Sample*) ((*it)->get_buffer (nframes));
1229 Sample* tgt = target;
1230 for (uint32_t frame = 0; frame < nframes; ++frame, tgt += _max_output_channels, ++src) {
1238 static boost::shared_ptr<WavesAudioBackend> __instance;
1241 boost::shared_ptr<AudioBackend>
1242 WavesAudioBackend::__waves_backend_factory (AudioEngine& e)
1244 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__waves_backend_factory ():" << std::endl;
1246 _instance.reset (new WavesAudioBackend (e));
1252 #if defined(PLATFORM_WINDOWS)
1254 uint64_t WavesAudioBackend::__performance_counter_frequency;
1259 WavesAudioBackend::__instantiate (const std::string& arg1, const std::string& arg2)
1261 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__instantiate ():" << "[" << arg1 << "], [" << arg2 << "]" << std::endl;
1262 __instantiated_name = arg1;
1263 #if defined(PLATFORM_WINDOWS)
1265 LARGE_INTEGER Frequency;
1266 QueryPerformanceFrequency(&Frequency);
1267 __performance_counter_frequency = Frequency.QuadPart;
1275 WavesAudioBackend::__deinstantiate ()
1277 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__deinstantiate ():" << std::endl;
1278 __instance.reset ();
1284 WavesAudioBackend::__already_configured ()
1286 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__already_configured ():" << std::endl;
1291 WavesAudioBackend::__available ()
1293 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__available ():" << std::endl;
1299 WavesAudioBackend::private_handle () const
1301 // COMMENTED DBG LOGS */ std::cout << "WHY DO CALL IT: WavesAudioBackend::private_handle: " << std::endl;
1307 WavesAudioBackend::available () const
1309 // COMMENTED SECONDARY DBG LOGS */// std::cout << "WavesAudioBackend::available: " << std::endl;
1315 WavesAudioBackend::my_name () const
1317 // COMMENTED SECONDARY DBG LOGS */// std::cout << "WavesAudioBackend::my_name: " << _port_prefix_name << std::endl;
1318 return __instantiated_name;
1323 WavesAudioBackend::can_monitor_input () const
1325 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::can_monitor_input: " << std::endl;
1329 std::string WavesAudioBackend::__instantiated_name;
1331 AudioBackendInfo WavesAudioBackend::__backend_info = {
1334 #elif PLATFORM_WINDOWS
1338 WavesAudioBackend::__deinstantiate,
1339 WavesAudioBackend::__waves_backend_factory,
1340 WavesAudioBackend::__already_configured,
1341 WavesAudioBackend::__available,