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 using namespace ARDOUR;
26 #if defined __MINGW64__ || defined __MINGW32__
27 extern "C" __declspec(dllexport) ARDOUR::AudioBackendInfo* descriptor ()
29 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
32 // COMMENTED DBG LOGS */ std::cout << "waves_backend.dll : ARDOUR::AudioBackendInfo* descriptor (): " << std::endl;
33 return &WavesAudioBackend::backend_info ();
36 void WavesAudioBackend::AudioDeviceManagerNotification (NotificationReason reason, void* parameter)
39 case WCMRAudioDeviceManagerClient::DeviceDebugInfo:
40 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceDebugInfo -- " << (char*)parameter << std::endl;
42 case WCMRAudioDeviceManagerClient::BufferSizeChanged:
43 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::BufferSizeChanged: " << *(uint32_t*)parameter << std::endl;
44 _buffer_size_change(*(uint32_t*)parameter);
46 case WCMRAudioDeviceManagerClient::RequestReset:
47 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::RequestReset" << std::endl;
48 engine.request_backend_reset();
50 case WCMRAudioDeviceManagerClient::RequestResync:
51 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::RequestResync" << std::endl;
53 case WCMRAudioDeviceManagerClient::SamplingRateChanged:
54 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::SamplingRateChanged: " << *(float*)parameter << std::endl;
55 set_sample_rate(*(float*)parameter);
57 case WCMRAudioDeviceManagerClient::Dropout:
58 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::Dropout: " << std::endl;
60 case WCMRAudioDeviceManagerClient::DeviceDroppedSamples:
61 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceDroppedSamples" << std::endl;
63 case WCMRAudioDeviceManagerClient::DeviceStoppedStreaming:
64 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceStoppedStreaming" << std::endl;
66 case WCMRAudioDeviceManagerClient::DeviceStartsStreaming:
67 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceStartsStreaming" << std::endl;
68 _call_thread_init_callback = true; // streaming will be started from device side, just set thread init flag
70 case WCMRAudioDeviceManagerClient::DeviceConnectionLost:
71 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceConnectionLost" << std::endl;
73 case WCMRAudioDeviceManagerClient::DeviceListChanged:
74 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceListChanged" << std::endl;
75 engine.request_device_list_update();
77 case WCMRAudioDeviceManagerClient::IODeviceDisconnected:
78 std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceListChanged" << std::endl;
79 engine.request_device_list_update();
81 case WCMRAudioDeviceManagerClient::AudioCallback:
83 AudioCallbackData* audio_callback_data = (AudioCallbackData*)parameter;
84 _audio_device_callback (
85 audio_callback_data->acdInputBuffer,
86 audio_callback_data->acdOutputBuffer,
87 audio_callback_data->acdFrames,
88 audio_callback_data->acdSampleTime,
89 audio_callback_data->acdCycleStartTimeNanos
100 WavesAudioBackend::WavesAudioBackend (AudioEngine& e)
101 : AudioBackend (e, __backend_info)
102 , _audio_device_manager (this)
103 , _midi_device_manager (*this)
105 , _sample_format (FormatFloat)
106 , _interleaved (true)
107 , _input_channels (0)
108 , _max_input_channels (0)
109 , _output_channels (0)
110 , _max_output_channels (0)
113 , _systemic_input_latency (0)
114 , _systemic_output_latency (0)
115 , _call_thread_init_callback (false)
117 , _sample_time_at_cycle_start (0)
118 , _freewheeling (false)
119 , _freewheel_thread_active (false)
120 , _audio_cycle_period_nanos (0)
121 , _dsp_load_accumulator (0)
122 , _dsp_load_history_length(0)
127 WavesAudioBackend::~WavesAudioBackend ()
133 WavesAudioBackend::name () const
136 return std::string ("CoreAudio");
137 #elif PLATFORM_WINDOWS
138 return std::string ("ASIO");
144 WavesAudioBackend::is_realtime () const
151 WavesAudioBackend::requires_driver_selection () const
157 std::vector<std::string>
158 WavesAudioBackend::enumerate_drivers () const
160 // this backend does not suppose driver selection
163 return std::vector<std::string> ();
168 WavesAudioBackend::set_driver (const std::string& /*drivername*/)
170 //Waves audio backend does not suppose driver selection
177 std::vector<AudioBackend::DeviceStatus>
178 WavesAudioBackend::enumerate_devices () const
180 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::enumerate_devices (): " << std::endl;
182 std::vector<DeviceStatus> devicesStatus;
183 const DeviceInfoVec& deviceInfoList = _audio_device_manager.DeviceInfoList();
185 for (DeviceInfoVecConstIter deviceInfoIter = deviceInfoList.begin (); deviceInfoIter != deviceInfoList.end (); ++deviceInfoIter) {
186 // COMMENTED DBG LOGS */ std::cout << "\t Device found: " << (*deviceInfoIter)->m_DeviceName << std::endl;
187 devicesStatus.push_back (DeviceStatus ((*deviceInfoIter)->m_DeviceName, true));
190 return devicesStatus;
195 WavesAudioBackend::available_sample_rates (const std::string& device_name) const
197 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_sample_rates (): [" << device_name << "]" << std::endl;
201 WTErr retVal = _audio_device_manager.GetDeviceSampleRates(device_name, sr);
203 if (eNoErr != retVal) {
204 std::cerr << "WavesAudioBackend::available_sample_rates (): Failed to find device [" << device_name << "]" << std::endl;
205 return std::vector<float> ();
208 // COMMENTED DBG LOGS */ std::cout << "\tFound " << devInfo.m_AvailableSampleRates.size () << " sample rates for " << device_name << ":";
210 std::vector<float> sample_rates (sr.begin (), sr.end ());
212 // COMMENTED DBG LOGS */ for (std::vector<float>::iterator i = sample_rates.begin (); i != sample_rates.end (); ++i) std::cout << " " << *i; std::cout << std::endl;
218 float WavesAudioBackend::default_sample_rate () const
220 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::default_sample_rate (): " << AudioBackend::default_sample_rate () << std::endl;
221 return AudioBackend::default_sample_rate ();
225 std::vector<uint32_t>
226 WavesAudioBackend::available_buffer_sizes (const std::string& device_name) const
228 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_buffer_sizes (): [" << device_name << "]" << std::endl;
232 WTErr retVal = _audio_device_manager.GetDeviceBufferSizes(device_name, bs);
234 if (retVal != eNoErr) {
235 std::cerr << "WavesAudioBackend::available_buffer_sizes (): Failed to get buffer size for device [" << device_name << "]" << std::endl;
236 return std::vector<uint32_t> ();
239 std::vector<uint32_t> buffer_sizes (bs.begin (), bs.end ());
241 // COMMENTED DBG LOGS */ std::cout << "\tFound " << buffer_sizes.size () << " buffer sizes for " << device_name << ":";
242 // 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;
249 WavesAudioBackend::available_input_channel_count (const std::string& device_name) const
252 WTErr err = _audio_device_manager.GetDeviceInfoByName(device_name, devInfo);
255 std::cerr << "WavesAudioBackend::available_input_channel_count (): Failed to find device [" << device_name << "]" << std::endl;
259 uint32_t num_of_input_channels = devInfo.m_MaxInputChannels;
261 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_input_channel_count (): " << num_of_input_channels << std::endl;
262 return num_of_input_channels;
267 WavesAudioBackend::available_output_channel_count (const std::string& device_name) const
270 WTErr err = _audio_device_manager.GetDeviceInfoByName(device_name, devInfo);
273 std::cerr << "WavesAudioBackend::available_output_channel_count (): Failed to find device [" << device_name << "]" << std::endl;
277 uint32_t num_of_output_channels = devInfo.m_MaxOutputChannels;
279 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_output_channel_count (): " << num_of_output_channels << std::endl;
281 return num_of_output_channels;
286 WavesAudioBackend::can_change_sample_rate_when_running () const
288 // VERIFY IT CAREFULLY
294 WavesAudioBackend::can_change_buffer_size_when_running () const
296 // VERIFY IT CAREFULLY
302 WavesAudioBackend::set_device_name (const std::string& device_name)
304 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_device_name (): " << device_name << std::endl;
306 if (_ports.size ()) {
307 std::cerr << "WavesAudioBackend::set_device_name (): There are unregistered ports left after [" << (_device ? _device->DeviceName () : std::string ("<NULL>")) << "]!" << std::endl;
308 for (size_t i = 0; i < _ports.size (); ++i) {
309 std::cerr << "\t[" << _ports[i]->name () << "]!" << std::endl;
314 if (_device && _device->Streaming () ) {
315 std::cerr << "WavesAudioBackend::set_device_name (): [" << _device->DeviceName () << "] is streaming! Current device must be stopped before setting another device as current" << std::endl;
318 // we must have only one device initialized at a time
319 // stop current device first
322 retVal = _device->SetActive (false);
323 if (retVal != eNoErr) {
324 std::cerr << "WavesAudioBackend::set_device_name (): [" << _device->DeviceName () << "]->SetActive (false) failed!" << std::endl;
330 _audio_device_manager.DestroyCurrentDevice();
333 WCMRAudioDevice * device = _audio_device_manager.InitNewCurrentDevice(device_name);
336 std::cerr << "WavesAudioBackend::set_device_name (): Failed to initialize device [" << device_name << "]!" << std::endl;
341 retVal = device->SetActive (true);
342 if (retVal != eNoErr) {
343 std::cerr << "WavesAudioBackend::set_device_name (): [" << device->DeviceName () << "]->SetActive () failed!" << std::endl;
353 WavesAudioBackend::drop_device()
359 wtErr = _device->SetActive (false);
360 if (wtErr != eNoErr) {
361 std::cerr << "WavesAudioBackend::drop_device (): [" << _device->DeviceName () << "]->SetActive () failed!" << std::endl;
366 _audio_device_manager.DestroyCurrentDevice();
374 WavesAudioBackend::set_sample_rate (float sample_rate)
376 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_sample_rate (): " << sample_rate << std::endl;
378 WTErr retVal = eNoErr;
381 std::cerr << "WavesAudioBackend::set_sample_rate (): No device is set!" << std::endl;
386 bool device_needs_restart = _device->Streaming ();
388 if (device_needs_restart) {
389 retVal = _device->SetStreaming (false);
390 // COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->_device->SetStreaming (false);"<< std::endl;
391 if (retVal != eNoErr) {
392 std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName () << "]->SetStreaming (false) failed (" << retVal << ") !" << std::endl;
397 retVal = _device->SetCurrentSamplingRate ((int)sample_rate);
399 if (retVal != eNoErr) {
400 std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName() << "]->SetCurrentSamplingRate ((int)" << sample_rate << ") failed (" << retVal << ") !" << std::endl;
404 _sample_rate_change(sample_rate);
406 if (device_needs_restart) {
407 // COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (true);"<< std::endl;
408 _call_thread_init_callback = true;
409 retVal = _device->SetStreaming (true);
410 if (retVal != eNoErr) {
411 std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName () << "]->SetStreaming (true) failed (" << retVal << ") !" << std::endl;
420 WavesAudioBackend::set_buffer_size (uint32_t buffer_size)
422 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_buffer_size (" << buffer_size << "):"<< std::endl;
424 WTErr retVal = eNoErr;
427 std::cerr << "WavesAudioBackend::set_buffer_size (): No device is set!" << std::endl;
431 bool device_needs_restart = _device->Streaming ();
433 if (device_needs_restart) {
434 retVal = _device->SetStreaming (false);
435 // COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (false);"<< std::endl;
436 if (retVal != eNoErr) {
437 std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName () << "]->SetStreaming (false) failed (" << retVal << ") !" << std::endl;
442 retVal = _device->SetCurrentBufferSize (buffer_size);
444 if (retVal != eNoErr) {
445 std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName() << "]->SetCurrentBufferSize (" << buffer_size << ") failed (" << retVal << ") !" << std::endl;
449 // if call to set buffer is successful but device buffer size differs from the value we tried to set
450 // this means we are driven by device for buffer size
451 buffer_size = _device->CurrentBufferSize ();
453 _buffer_size_change(buffer_size);
455 if (device_needs_restart) {
456 // COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (true);"<< std::endl;
457 _call_thread_init_callback = true;
458 retVal = _device->SetStreaming (true);
459 if (retVal != eNoErr) {
460 std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName () << "]->SetStreaming (true) failed (" << retVal << ") !" << std::endl;
470 WavesAudioBackend::set_sample_format (SampleFormat sample_format)
472 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_sample_format (): " << sample_format << std::endl;
474 _sample_format = sample_format;
479 WavesAudioBackend::reset_device ()
481 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_reset_device ():" << std::endl;
483 WTErr retVal = eNoErr;
486 std::cerr << "WavesAudioBackend::set_buffer_size (): No device is set!" << std::endl;
490 return _device->ResetDevice();
495 WavesAudioBackend::_buffer_size_change (uint32_t new_buffer_size)
497 _buffer_size = new_buffer_size;
498 _init_dsp_load_history();
499 return engine.buffer_size_change (new_buffer_size);
504 WavesAudioBackend::_sample_rate_change (float new_sample_rate)
506 _sample_rate = new_sample_rate;
507 _init_dsp_load_history();
508 return engine.sample_rate_change (new_sample_rate);
513 WavesAudioBackend::set_interleaved (bool yn)
515 /*you can ignore them totally*/
522 WavesAudioBackend::set_input_channels (uint32_t input_channels)
524 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_input_channels (): " << input_channels << std::endl;
526 _input_channels = input_channels;
532 WavesAudioBackend::set_output_channels (uint32_t output_channels)
534 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_output_channels (): " << output_channels << std::endl;
536 _output_channels = output_channels;
542 WavesAudioBackend::device_name () const
547 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::device_name (): " << _device->DeviceName () << std::endl;
549 return _device->DeviceName ();
554 WavesAudioBackend::sample_rate () const
556 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::sample_rate (): " << std::endl;
559 std::cerr << "WavesAudioBackend::sample_rate (): No device is set!" << std::endl;
563 int sample_rate = _device->CurrentSamplingRate ();
565 // COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]->CurrentSamplingRate () returned " << sample_rate << std::endl;
567 return (float)sample_rate;
572 WavesAudioBackend::buffer_size () const
575 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::buffer_size (): " << std::endl;
578 std::cerr << "WavesAudioBackend::buffer_size (): No device is set!" << std::endl;
582 int size = _device->CurrentBufferSize ();
584 // COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]->CurrentBufferSize () returned " << size << std::endl;
586 return (uint32_t)size;
591 WavesAudioBackend::sample_format () const
593 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::sample_format ()" << std::endl;
594 return _sample_format;
599 WavesAudioBackend::interleaved () const
601 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::interleaved ()" << std::endl;
608 WavesAudioBackend::input_channels () const
610 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::input_channels ()" << std::endl;
612 return _input_channels;
617 WavesAudioBackend::output_channels () const
619 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::output_channels ()" << std::endl;
621 return _output_channels;
626 WavesAudioBackend::control_app_name () const
628 std::string app_name = "";
630 if (_device && !dynamic_cast<WCMRNativeAudioNoneDevice*> (_device)) {
631 app_name = "PortAudioMayKnowIt";
639 WavesAudioBackend::launch_control_app ()
641 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::launch_control_app ()" << std::endl;
643 std::cerr << "WavesAudioBackend::launch_control_app (): No device is set!" << std::endl;
647 WTErr err = _device->ShowConfigPanel (NULL);
650 std::cerr << "WavesAudioBackend::launch_control_app (): [" << _device->DeviceName () << "]->ShowConfigPanel () failed (" << err << ")!" << std::endl;
653 // COMMENTED DBG LOGS */ else std::cout << "WavesAudioBackend::launch_control_app (): [" << _device->DeviceName () << "]->ShowConfigPanel () successfully launched!" << std::endl;
658 WavesAudioBackend::_start (bool for_latency_measurement)
660 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_start ()" << std::endl;
663 std::cerr << "WavesAudioBackend::_start (): No device is set!" << std::endl;
668 if (_register_system_audio_ports () != 0) {
669 std::cerr << "WavesAudioBackend::_start (): _register_system_audio_ports () failed!" << std::endl;
675 if (_midi_device_manager.start () != 0) {
676 std::cerr << "WavesAudioBackend::_start (): _midi_device_manager.start () failed!" << std::endl;
680 if (_register_system_midi_ports () != 0) {
681 std::cerr << "WavesAudioBackend::_start (): _register_system_midi_ports () failed!" << std::endl;
687 if (engine.reestablish_ports () != 0) {
688 std::cerr << "WavesAudioBackend::_start (): engine.reestablish_ports () failed!" << std::endl;
691 manager.registration_callback ();
693 _call_thread_init_callback = true;
694 WTErr retVal = _device->SetStreaming (true);
695 if (retVal != eNoErr) {
696 std::cerr << "WavesAudioBackend::_start (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
702 if (_midi_device_manager.stream (true)) {
703 std::cerr << "WavesAudioBackend::_start (): _midi_device_manager.stream (true) failed!" << std::endl;
714 WavesAudioBackend::_audio_device_callback (const float* input_buffer,
715 float* output_buffer,
716 unsigned long nframes,
717 pframes_t sample_time,
718 uint64_t cycle_start_time_nanos)
720 uint64_t dsp_start_time_nanos = __get_time_nanos();
721 // COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::_audio_device_callback ():" << _device->DeviceName () << std::endl;
722 _sample_time_at_cycle_start = sample_time;
723 _cycle_start_time_nanos = cycle_start_time_nanos;
725 if (_buffer_size != nframes) {
726 // COMMENTED DBG LOGS */ std::cout << "\tAudioEngine::thread_init_callback() buffer size and nframes are not equal: " << _buffer_size << "!=" << nframes << std::endl;
730 _read_audio_data_from_device (input_buffer, nframes);
731 _read_midi_data_from_devices ();
733 if (_call_thread_init_callback) {
734 _call_thread_init_callback = false;
735 // COMMENTED DBG LOGS */ std::cout << "\tAudioEngine::thread_init_callback() invoked for " << std::hex << pthread_self() << std::dec << " !" << std::endl;
736 AudioEngine::thread_init_callback (this);
739 engine.process_callback (nframes);
741 _write_audio_data_to_device (output_buffer, nframes);
742 _write_midi_data_to_devices (nframes);
744 uint64_t dsp_end_time_nanos = __get_time_nanos();
746 _dsp_load_accumulator -= *_dsp_load_history.begin();
747 _dsp_load_history.pop_front();
748 uint64_t dsp_load_nanos = dsp_end_time_nanos - dsp_start_time_nanos;
749 _dsp_load_accumulator += dsp_load_nanos;
750 _dsp_load_history.push_back(dsp_load_nanos);
757 WavesAudioBackend::stop ()
759 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::stop ()" << std::endl;
761 WTErr wtErr = eNoErr;
764 // COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]" << std::endl;
767 wtErr = _device->SetStreaming (false);
768 if (wtErr != eNoErr) {
769 std::cerr << "WavesAudioBackend::stop (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
774 _midi_device_manager.stop ();
776 _unregister_system_audio_ports ();
777 _unregister_system_midi_ports ();
784 WavesAudioBackend::freewheel (bool start_stop)
786 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::freewheel (" << start_stop << "):" << std::endl;
788 if (start_stop != _freewheeling) {
789 if (start_stop == true) {
790 WTErr retval = _device->SetStreaming (false);
791 if (retval != eNoErr) {
792 std::cerr << "WavesAudioBackend::freewheel (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
795 _call_thread_init_callback = true;
796 _freewheel_thread ();
797 engine.freewheel_callback (start_stop);
800 _freewheel_thread_active = false; // stop _freewheel_thread ()
801 engine.freewheel_callback (start_stop);
802 _call_thread_init_callback = true;
803 WTErr retval = _device->SetStreaming (true);
804 if (retval != eNoErr) {
805 std::cerr << "WavesAudioBackend::freewheel (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
809 _freewheeling = start_stop;
811 // already doing what has been asked for
817 WavesAudioBackend::_freewheel_thread ()
819 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_freewheel_thread ():" << std::endl;
820 if (!_freewheel_thread_active) { // Lets create it
822 // COMMENTED DBG LOGS */ std::cout << "\tCreating the thread _freewheel_thread () . . ." << std::endl;
823 pthread_attr_t attributes;
826 ThreadData* thread_data = new ThreadData (this, boost::bind (&WavesAudioBackend::_freewheel_thread, this), __thread_stack_size ());
828 if (pthread_attr_init (&attributes)) {
829 std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_attr_init () failed!" << std::endl;
833 if (pthread_attr_setstacksize (&attributes, __thread_stack_size ())) {
834 std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_attr_setstacksize () failed!" << std::endl;
838 _freewheel_thread_active = false;
839 if ((pthread_create (&thread_id, &attributes, __start_process_thread, thread_data))) {
840 _freewheel_thread_active = true;
841 std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_create () failed!" << std::endl;
845 // COMMENTED DBG LOGS */ std::cout << "\t. . . _freewheel_thread () complete." << std::endl;
849 if (_call_thread_init_callback) {
850 _call_thread_init_callback = false;
851 AudioEngine::thread_init_callback (this);
854 while (_freewheel_thread_active) {
855 engine.process_callback (_buffer_size);
857 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_freewheel_thread (): FINISHED" << std::endl;
863 WavesAudioBackend::dsp_load () const
865 // COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::dsp_load (): " << std::endl;
868 std::cerr << "WavesAudioBackend::cpu_load (): No device is set!" << std::endl;
872 float average_dsp_load = (float)_dsp_load_accumulator/_dsp_load_history_length;
874 return ( average_dsp_load / _audio_cycle_period_nanos)*100.0;
879 WavesAudioBackend::_init_dsp_load_history()
881 if((_sample_rate <= 0.0) || (_buffer_size <= 0.0)) {
885 _audio_cycle_period_nanos = ((uint64_t)1000000000L * _buffer_size) / _sample_rate;
887 _dsp_load_accumulator = 0;
889 _dsp_load_history_length = (_sample_rate + _buffer_size - 1) / _buffer_size;
890 // COMMENTED DBG LOGS */ std::cout << "\t\t_dsp_load_history_length = " << _dsp_load_history_length << std::endl;
891 _dsp_load_history = std::list<uint64_t>(_dsp_load_history_length, 0);
896 WavesAudioBackend::transport_start ()
898 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_start (): " << std::endl;
903 WavesAudioBackend::transport_stop ()
905 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_stop (): " << std::endl;
910 WavesAudioBackend::transport_state () const
912 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_state (): " << std::endl;
913 return TransportStopped;
918 WavesAudioBackend::transport_locate (framepos_t pos)
920 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_locate (" << pos << "): " << std::endl;
925 WavesAudioBackend::transport_frame () const
927 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_frame (): " << std::endl;
933 WavesAudioBackend::set_time_master (bool yn)
935 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_time_master (): " << yn << std::endl;
941 WavesAudioBackend::usecs_per_cycle () const
943 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::usecs_per_cycle (): " << std::endl;
944 return (1000000 * _sample_rate) / _buffer_size;
949 WavesAudioBackend::raw_buffer_size (DataType data_type)
951 // COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::raw_buffer_size (" << data_type.to_string () << "): " << std::endl;
953 case DataType::AUDIO:
954 return WavesAudioPort::MAX_BUFFER_SIZE_BYTES;
958 return WavesMidiPort::MAX_BUFFER_SIZE_BYTES;
962 std::cerr << "WavesAudioBackend::raw_buffer_size (): unexpected data type (" << (uint32_t)data_type <<")!" << std::endl;
970 WavesAudioBackend::sample_time ()
972 // WARNING: This is approximate calculation. Implementation of accurate calculation is pending.
973 // http://kokkinizita.linuxaudio.org/papers/usingdll.pdf
975 return _sample_time_at_cycle_start + ((__get_time_nanos () - _cycle_start_time_nanos)*_sample_rate)/1000000000L;
980 WavesAudioBackend::__get_time_nanos ()
983 // here we exploit the time counting API which is used by the WCMRCoreAudioDeviceManager. However,
984 // the API should be a part of WCMRCoreAudioDeviceManager to give a chance of being tied to the
985 // audio device transport timeß.
986 return AudioConvertHostTimeToNanos (AudioGetCurrentHostTime ());
988 #elif PLATFORM_WINDOWS
990 QueryPerformanceCounter (&Count);
991 return uint64_t ((Count.QuadPart * 1000000000L / __performance_counter_frequency));
997 WavesAudioBackend::sample_time_at_cycle_start ()
999 // COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::sample_time_at_cycle_start (): " << _sample_time_at_cycle_start << std::endl;
1000 return _sample_time_at_cycle_start;
1005 WavesAudioBackend::samples_since_cycle_start ()
1007 pframes_t diff_sample_time;
1008 diff_sample_time = sample_time () - _sample_time_at_cycle_start;
1009 // COMMENTED DBG LOGS */ std::cout << "samples_since_cycle_start: " << diff_sample_time << std::endl;
1011 return diff_sample_time;
1016 WavesAudioBackend::get_sync_offset (pframes_t& /*offset*/) const
1018 // COMMENTED DBG LOGS */ std::cout << "get_sync_offset: false" << std::endl;
1025 WavesAudioBackend::create_process_thread (boost::function<void ()> func)
1027 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::create_process_thread ():" << std::endl;
1029 pthread_attr_t attributes;
1030 size_t stacksize_aligned;
1031 pthread_t thread_id;
1033 // Align stacksize to PTHREAD_STACK_MIN.
1034 stacksize_aligned = __thread_stack_size ();
1036 ThreadData* td = new ThreadData (this, func, stacksize_aligned);
1038 if ((retVal = pthread_attr_init (&attributes))) {
1039 std::cerr << "Cannot set thread attr init res = " << retVal << endmsg;
1043 if ((retVal = pthread_attr_setstacksize (&attributes, stacksize_aligned))) {
1044 std::cerr << "Cannot set thread stack size (" << stacksize_aligned << ") res = " << retVal << endmsg;
1048 if ((retVal = pthread_create (&thread_id, &attributes, __start_process_thread, td))) {
1049 std::cerr << "Cannot create thread res = " << retVal << endmsg;
1053 _backend_threads.push_back (thread_id);
1054 // COMMENTED DBG LOGS */ std::cout << "\t\t\t. . . thread " << std::hex << thread_id << std::dec << " has been created" << std::endl;
1061 WavesAudioBackend::__start_process_thread (void* arg)
1063 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__start_process_thread ():" << std::endl;
1064 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
1065 boost::function<void ()> f = td->f;
1073 WavesAudioBackend::join_process_threads ()
1075 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::join_process_thread ()" << std::endl;
1078 for (std::vector<pthread_t>::const_iterator i = _backend_threads.begin ();
1079 i != _backend_threads.end ();
1081 // COMMENTED DBG LOGS */ std::cout << "\t\t\tstopping thread " << std::hex << *i << std::dec << "...\n";
1084 if (pthread_join (*i, &status) != 0) {
1085 std::cerr << "AudioEngine: cannot stop process thread !" << std::endl;
1088 // COMMENTED DBG LOGS */ std::cout << "\t\t\t\t...done" << std::endl;
1090 // COMMENTED DBG LOGS */ std::cout << "\t\t\tall threads finished..." << std::endl;
1091 _backend_threads.clear ();
1092 // COMMENTED DBG LOGS */ std::cout << "\t\t\tthread list cleared..." << std::endl;
1099 WavesAudioBackend::in_process_thread ()
1101 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::in_process_thread ()" << std::endl;
1102 for (std::vector<pthread_t>::const_iterator i = _backend_threads.begin ();
1103 i != _backend_threads.end (); i++) {
1104 if (pthread_equal (*i, pthread_self ()) != 0) {
1113 WavesAudioBackend::__thread_stack_size ()
1115 // Align stacksize to PTHREAD_STACK_MIN.
1116 #if defined (__APPLE__)
1117 return (((thread_stack_size () - 1) / PTHREAD_STACK_MIN) + 1) * PTHREAD_STACK_MIN;
1118 #elif defined (PLATFORM_WINDOWS)
1119 return thread_stack_size ();
1125 WavesAudioBackend::process_thread_count ()
1127 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::process_thread_count (): returns " << _backend_threads.size () << std::endl;
1128 return _backend_threads.size ();
1133 WavesAudioBackend::_read_audio_data_from_device (const float* input_buffer, pframes_t nframes)
1135 #if defined(PLATFORM_WINDOWS)
1136 const float **buffer = (const float**)input_buffer;
1137 size_t copied_bytes = nframes*sizeof(float);
1139 for(std::vector<WavesAudioPort*>::iterator it = _physical_audio_inputs.begin ();
1140 it != _physical_audio_inputs.end();
1143 memcpy((*it)->buffer(), *buffer, copied_bytes);
1147 std::vector<WavesAudioPort*>::iterator it = _physical_audio_inputs.begin ();
1149 // Well, let's de-interleave here:
1150 const Sample* source = input_buffer;
1152 for (uint32_t chann_cnt = 0; (chann_cnt < _max_input_channels) && (it != _physical_audio_inputs.end ()); ++chann_cnt, ++source, ++it) {
1153 const Sample* src = source;
1154 Sample* tgt = (*it)->buffer ();
1156 for (uint32_t frame = 0; frame < nframes; ++frame, src += _max_input_channels, ++tgt) {
1164 WavesAudioBackend::_write_audio_data_to_device (float* output_buffer, pframes_t nframes)
1166 #if defined(_WnonononoINDOWS)
1167 float **buffer = (float**)output_buffer;
1168 size_t copied_bytes = nframes*sizeof(float);
1170 for(std::vector<WavesAudioPort*>::iterator it = _physical_audio_outputs.begin ();
1171 it != _physical_audio_outputs.end();
1174 memcpy(*buffer, (*it)->buffer(), copied_bytes);
1175 //*buffer = (*it)->buffer();
1179 // Well, let's interleave here:
1180 std::vector<WavesAudioPort*>::iterator it = _physical_audio_outputs.begin ();
1181 Sample* target = output_buffer;
1183 for (uint32_t chann_cnt = 0;
1184 (chann_cnt < _max_output_channels) && (it != _physical_audio_outputs.end ());
1185 ++chann_cnt, ++target, ++it) {
1186 const Sample* src = (Sample*) ((*it)->get_buffer (nframes));
1187 Sample* tgt = target;
1188 for (uint32_t frame = 0; frame < nframes; ++frame, tgt += _max_output_channels, ++src) {
1196 static boost::shared_ptr<WavesAudioBackend> __instance;
1199 boost::shared_ptr<AudioBackend>
1200 WavesAudioBackend::__waves_backend_factory (AudioEngine& e)
1202 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__waves_backend_factory ():" << std::endl;
1204 __instance.reset (new WavesAudioBackend (e));
1210 #if defined(PLATFORM_WINDOWS)
1212 uint64_t WavesAudioBackend::__performance_counter_frequency;
1217 WavesAudioBackend::__instantiate (const std::string& arg1, const std::string& arg2)
1219 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__instantiate ():" << "[" << arg1 << "], [" << arg2 << "]" << std::endl;
1220 __instantiated_name = arg1;
1221 #if defined(PLATFORM_WINDOWS)
1223 LARGE_INTEGER Frequency;
1224 QueryPerformanceFrequency(&Frequency);
1225 __performance_counter_frequency = Frequency.QuadPart;
1226 std::cout << "__performance_counter_frequency:" << __performance_counter_frequency << std::endl;
1234 WavesAudioBackend::__deinstantiate ()
1236 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__deinstantiate ():" << std::endl;
1237 __instance.reset ();
1243 WavesAudioBackend::__already_configured ()
1245 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__already_configured ():" << std::endl;
1251 WavesAudioBackend::private_handle () const
1253 // COMMENTED DBG LOGS */ std::cout << "WHY DO CALL IT: WavesAudioBackend::private_handle: " << std::endl;
1259 WavesAudioBackend::available () const
1261 // COMMENTED SECONDARY DBG LOGS */// std::cout << "WavesAudioBackend::available: " << std::endl;
1267 WavesAudioBackend::my_name () const
1269 // COMMENTED SECONDARY DBG LOGS */// std::cout << "WavesAudioBackend::my_name: " << _port_prefix_name << std::endl;
1270 return __instantiated_name;
1275 WavesAudioBackend::can_monitor_input () const
1277 // COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::can_monitor_input: " << std::endl;
1281 std::string WavesAudioBackend::__instantiated_name;
1283 AudioBackendInfo WavesAudioBackend::__backend_info = {
1286 #elif PLATFORM_WINDOWS
1290 WavesAudioBackend::__deinstantiate,
1291 WavesAudioBackend::__waves_backend_factory,
1292 WavesAudioBackend::__already_configured,