1356 lines
41 KiB
C++
1356 lines
41 KiB
C++
/*
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Copyright (C) 2014 Waves Audio Ltd.
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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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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "waves_audiobackend.h"
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#include "waves_audioport.h"
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#include "waves_midiport.h"
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#include "ardour/runtime_functions.h"
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#ifdef COMPILER_MSVC
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#include <windows.h>
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#define sleep(X) Sleep((X) * 1000)
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// JE - Perhaps we should be using Glib::usleep() here, rather than sleep()?? But
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// that would make the Waves backend dependent on Glib (which is isn't, currently).
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#endif
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using namespace ARDOUR;
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#if defined __MINGW64__ || defined __MINGW32__
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extern "C" __declspec(dllexport) ARDOUR::AudioBackendInfo* descriptor ()
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#else
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extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
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#endif
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{
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// COMMENTED DBG LOGS */ std::cout << "waves_backend.dll : ARDOUR::AudioBackendInfo* descriptor (): " << std::endl;
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return &WavesAudioBackend::backend_info ();
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}
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void WavesAudioBackend::AudioDeviceManagerNotification (NotificationReason reason, void* parameter)
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{
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switch (reason) {
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case WCMRAudioDeviceManagerClient::DeviceDebugInfo:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceDebugInfo -- " << (char*)parameter << std::endl;
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break;
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case WCMRAudioDeviceManagerClient::BufferSizeChanged:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::BufferSizeChanged: " << *(int*)parameter << std::endl;
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_buffer_size_change(*(int*)parameter);
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break;
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case WCMRAudioDeviceManagerClient::RequestReset:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::RequestReset" << std::endl;
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engine.request_backend_reset();
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break;
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case WCMRAudioDeviceManagerClient::RequestResync:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::RequestResync" << std::endl;
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break;
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case WCMRAudioDeviceManagerClient::SamplingRateChanged:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::SamplingRateChanged: " << *(float*)parameter << std::endl;
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_sample_rate_change(*(float*)parameter);
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break;
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case WCMRAudioDeviceManagerClient::Dropout:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::Dropout: " << std::endl;
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break;
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case WCMRAudioDeviceManagerClient::DeviceDroppedSamples:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceDroppedSamples" << std::endl;
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break;
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case WCMRAudioDeviceManagerClient::DeviceStoppedStreaming:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceStoppedStreaming" << std::endl;
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break;
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case WCMRAudioDeviceManagerClient::DeviceStartsStreaming:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceStartsStreaming" << std::endl;
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_call_thread_init_callback = true; // streaming will be started from device side, just set thread init flag
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break;
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case WCMRAudioDeviceManagerClient::DeviceConnectionLost:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceConnectionLost" << std::endl;
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break;
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case WCMRAudioDeviceManagerClient::DeviceListChanged:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::DeviceListChanged" << std::endl;
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engine.request_device_list_update();
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break;
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case WCMRAudioDeviceManagerClient::IODeviceDisconnected:
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std::cout << "------------------------------- WCMRAudioDeviceManagerClient::IODeviceDisconnected" << std::endl;
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engine.request_device_list_update();
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break;
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case WCMRAudioDeviceManagerClient::AudioCallback:
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if (parameter) {
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const AudioCallbackData* audio_callback_data = (AudioCallbackData*)parameter;
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_audio_device_callback (
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audio_callback_data->acdInputBuffer,
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audio_callback_data->acdOutputBuffer,
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audio_callback_data->acdFrames,
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audio_callback_data->acdSampleTime,
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audio_callback_data->acdCycleStartTimeNanos
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);
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}
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break;
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default:
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break;
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};
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}
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WavesAudioBackend::WavesAudioBackend (AudioEngine& e)
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: AudioBackend (e, __backend_info)
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, _audio_device_manager (this)
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, _midi_device_manager (*this)
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, _device (NULL)
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, _sample_format (FormatFloat)
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, _interleaved (true)
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, _input_channels (0)
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, _max_input_channels (0)
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, _output_channels (0)
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, _max_output_channels (0)
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, _sample_rate (0)
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, _buffer_size (0)
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, _systemic_input_latency (0)
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, _systemic_output_latency (0)
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, _call_thread_init_callback (false)
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, _use_midi (true)
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, _sample_time_at_cycle_start (0)
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, _freewheeling (false)
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, _freewheel_thread_active (false)
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, _dsp_load_accumulator (0)
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, _audio_cycle_period_nanos (0)
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, _dsp_load_history_length(0)
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{
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}
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WavesAudioBackend::~WavesAudioBackend ()
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{
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}
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std::string
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WavesAudioBackend::name () const
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{
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#ifdef __APPLE__
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return std::string ("CoreAudio");
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#elif PLATFORM_WINDOWS
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return std::string ("ASIO");
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#endif
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}
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bool
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WavesAudioBackend::is_realtime () const
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{
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return true;
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}
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bool
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WavesAudioBackend::requires_driver_selection () const
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{
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return false;
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}
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std::vector<std::string>
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WavesAudioBackend::enumerate_drivers () const
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{
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// this backend does not suppose driver selection
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assert (false);
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return std::vector<std::string> ();
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}
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int
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WavesAudioBackend::set_driver (const std::string& /*drivername*/)
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{
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//Waves audio backend does not suppose driver selection
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assert (false);
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return -1;
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}
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std::vector<AudioBackend::DeviceStatus>
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WavesAudioBackend::enumerate_devices () const
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{
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::enumerate_devices (): " << std::endl;
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std::vector<DeviceStatus> devicesStatus;
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const DeviceInfoVec& deviceInfoList = _audio_device_manager.DeviceInfoList();
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for (DeviceInfoVecConstIter deviceInfoIter = deviceInfoList.begin (); deviceInfoIter != deviceInfoList.end (); ++deviceInfoIter) {
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// COMMENTED DBG LOGS */ std::cout << "\t Device found: " << (*deviceInfoIter)->m_DeviceName << std::endl;
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devicesStatus.push_back (DeviceStatus ((*deviceInfoIter)->m_DeviceName, true));
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}
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return devicesStatus;
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}
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std::vector<float>
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WavesAudioBackend::available_sample_rates (const std::string& device_name) const
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{
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_sample_rates (): [" << device_name << "]" << std::endl;
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std::vector<int> sr;
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WTErr retVal = _audio_device_manager.GetDeviceSampleRates(device_name, sr);
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if (eNoErr != retVal) {
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std::cerr << "WavesAudioBackend::available_sample_rates (): Failed to find device [" << device_name << "]" << std::endl;
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return std::vector<float> ();
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}
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// COMMENTED DBG LOGS */ std::cout << "\tFound " << devInfo.m_AvailableSampleRates.size () << " sample rates for " << device_name << ":";
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std::vector<float> sample_rates (sr.begin (), sr.end ());
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// COMMENTED DBG LOGS */ for (std::vector<float>::iterator i = sample_rates.begin (); i != sample_rates.end (); ++i) std::cout << " " << *i; std::cout << std::endl;
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return sample_rates;
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}
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float WavesAudioBackend::default_sample_rate () const
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{
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::default_sample_rate (): " << AudioBackend::default_sample_rate () << std::endl;
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return AudioBackend::default_sample_rate ();
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}
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std::vector<uint32_t>
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WavesAudioBackend::available_buffer_sizes (const std::string& device_name) const
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{
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_buffer_sizes (): [" << device_name << "]" << std::endl;
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std::vector<int> bs;
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WTErr retVal = _audio_device_manager.GetDeviceBufferSizes(device_name, bs);
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::available_buffer_sizes (): Failed to get buffer size for device [" << device_name << "]" << std::endl;
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return std::vector<uint32_t> ();
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}
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std::vector<uint32_t> buffer_sizes (bs.begin (), bs.end ());
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// COMMENTED DBG LOGS */ std::cout << "\tFound " << buffer_sizes.size () << " buffer sizes for " << device_name << ":";
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// 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;
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return buffer_sizes;
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}
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uint32_t
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WavesAudioBackend::available_input_channel_count (const std::string& device_name) const
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{
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DeviceInfo devInfo;
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WTErr err = _audio_device_manager.GetDeviceInfoByName(device_name, devInfo);
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if (eNoErr != err) {
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std::cerr << "WavesAudioBackend::available_input_channel_count (): Failed to find device [" << device_name << "]" << std::endl;
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return 0;
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}
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uint32_t num_of_input_channels = devInfo.m_MaxInputChannels;
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_input_channel_count (): " << num_of_input_channels << std::endl;
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return num_of_input_channels;
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}
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uint32_t
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WavesAudioBackend::available_output_channel_count (const std::string& device_name) const
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{
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DeviceInfo devInfo;
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WTErr err = _audio_device_manager.GetDeviceInfoByName(device_name, devInfo);
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if (eNoErr != err) {
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std::cerr << "WavesAudioBackend::available_output_channel_count (): Failed to find device [" << device_name << "]" << std::endl;
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return 0;
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}
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uint32_t num_of_output_channels = devInfo.m_MaxOutputChannels;
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::available_output_channel_count (): " << num_of_output_channels << std::endl;
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return num_of_output_channels;
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}
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bool
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WavesAudioBackend::can_change_sample_rate_when_running () const
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{
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// VERIFY IT CAREFULLY
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return true;
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}
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bool
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WavesAudioBackend::can_change_buffer_size_when_running () const
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{
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// VERIFY IT CAREFULLY
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return true;
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}
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int
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WavesAudioBackend::set_device_name (const std::string& device_name)
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{
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_device_name (): " << device_name << std::endl;
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if (_ports.size ()) {
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std::cerr << "WavesAudioBackend::set_device_name (): There are unregistered ports left after [" << (_device ? _device->DeviceName () : std::string ("<NULL>")) << "]!" << std::endl;
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for (size_t i = 0; i < _ports.size (); ++i) {
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std::cerr << "\t[" << _ports[i]->name () << "]!" << std::endl;
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}
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return -1;
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}
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if (_device && _device->Streaming () ) {
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std::cerr << "WavesAudioBackend::set_device_name (): [" << _device->DeviceName () << "] is streaming! Current device must be stopped before setting another device as current" << std::endl;
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}
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// we must have only one device initialized at a time
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// stop current device first
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WTErr retVal;
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if (_device) {
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retVal = _device->SetActive (false);
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::set_device_name (): [" << _device->DeviceName () << "]->SetActive (false) failed!" << std::endl;
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return -1;
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}
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}
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// deinitialize it
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_audio_device_manager.DestroyCurrentDevice();
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_device = 0;
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WCMRAudioDevice * device = _audio_device_manager.InitNewCurrentDevice(device_name);
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if (!device) {
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std::cerr << "WavesAudioBackend::set_device_name (): Failed to initialize device [" << device_name << "]!" << std::endl;
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return -1;
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}
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retVal = device->SetActive (true);
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::set_device_name (): [" << device->DeviceName () << "]->SetActive () failed!" << std::endl;
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return -1;
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}
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_device = device;
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return 0;
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}
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int
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WavesAudioBackend::drop_device()
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{
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WTErr wtErr = 0;
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if (_device)
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{
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wtErr = _device->SetActive (false);
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if (wtErr != eNoErr) {
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std::cerr << "WavesAudioBackend::drop_device (): [" << _device->DeviceName () << "]->SetActive () failed!" << std::endl;
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return -1;
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}
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}
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_audio_device_manager.DestroyCurrentDevice();
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_device = 0;
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return 0;
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}
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int
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WavesAudioBackend::set_sample_rate (float sample_rate)
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{
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_sample_rate (): " << sample_rate << std::endl;
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WTErr retVal = eNoErr;
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if (!_device) {
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std::cerr << "WavesAudioBackend::set_sample_rate (): No device is set!" << std::endl;
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return -1;
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}
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bool device_needs_restart = _device->Streaming ();
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if (device_needs_restart) {
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retVal = _device->SetStreaming (false);
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// COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->_device->SetStreaming (false);"<< std::endl;
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName () << "]->SetStreaming (false) failed (" << retVal << ") !" << std::endl;
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return -1;
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}
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}
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retVal = _device->SetCurrentSamplingRate ((int)sample_rate);
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName() << "]->SetCurrentSamplingRate ((int)" << sample_rate << ") failed (" << retVal << ") !" << std::endl;
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return -1;
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}
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// if call to set sample rate is successful
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// but device sample rate differs from the value we tried to set
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// this means we are driven by device for buffer size
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sample_rate = _device->CurrentSamplingRate ();
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_sample_rate_change(sample_rate);
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if (device_needs_restart) {
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// COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (true);"<< std::endl;
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retVal = _device->SetStreaming (true);
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::set_sample_rate (): [" << _device->DeviceName () << "]->SetStreaming (true) failed (" << retVal << ") !" << std::endl;
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return -1;
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}
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}
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return 0;
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}
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int
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WavesAudioBackend::set_buffer_size (uint32_t buffer_size)
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{
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_buffer_size (" << buffer_size << "):"<< std::endl;
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WTErr retVal = eNoErr;
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if (!_device) {
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std::cerr << "WavesAudioBackend::set_buffer_size (): No device is set!" << std::endl;
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return -1;
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}
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bool device_needs_restart = _device->Streaming ();
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if (device_needs_restart) {
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retVal = _device->SetStreaming (false);
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// COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (false);"<< std::endl;
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName () << "]->SetStreaming (false) failed (" << retVal << ") !" << std::endl;
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return -1;
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}
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}
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retVal = _device->SetCurrentBufferSize (buffer_size);
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName() << "]->SetCurrentBufferSize (" << buffer_size << ") failed (" << retVal << ") !" << std::endl;
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return -1;
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}
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// if call to set buffer is successful but device buffer size differs from the value we tried to set
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// this means we are driven by device for buffer size
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buffer_size = _device->CurrentBufferSize ();
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_buffer_size_change(buffer_size);
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if (device_needs_restart) {
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// COMMENTED DBG LOGS */ std::cout << "\t\t[" << _device->DeviceName() << "]->SetStreaming (true);"<< std::endl;
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retVal = _device->SetStreaming (true);
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if (retVal != eNoErr) {
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std::cerr << "WavesAudioBackend::set_buffer_size (): [" << _device->DeviceName () << "]->SetStreaming (true) failed (" << retVal << ") !" << std::endl;
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return -1;
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}
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}
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return 0;
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}
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int
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WavesAudioBackend::set_sample_format (SampleFormat sample_format)
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{
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// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_sample_format (): " << sample_format << std::endl;
|
|
|
|
_sample_format = sample_format;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
WavesAudioBackend::reset_device ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_reset_device ():" << std::endl;
|
|
|
|
if (!_device) {
|
|
std::cerr << "WavesAudioBackend::set_buffer_size (): No device is set!" << std::endl;
|
|
return -1;
|
|
}
|
|
|
|
return _device->ResetDevice();
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::_buffer_size_change (uint32_t new_buffer_size)
|
|
{
|
|
_buffer_size = new_buffer_size;
|
|
_init_dsp_load_history();
|
|
return engine.buffer_size_change (new_buffer_size);
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::_sample_rate_change (float new_sample_rate)
|
|
{
|
|
_sample_rate = new_sample_rate;
|
|
_init_dsp_load_history();
|
|
return engine.sample_rate_change (new_sample_rate);
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::set_interleaved (bool yn)
|
|
{
|
|
/*you can ignore them totally*/
|
|
_interleaved = yn;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::set_input_channels (uint32_t input_channels)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_input_channels (): " << input_channels << std::endl;
|
|
|
|
_input_channels = input_channels;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::set_output_channels (uint32_t output_channels)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_output_channels (): " << output_channels << std::endl;
|
|
|
|
_output_channels = output_channels;
|
|
return 0;
|
|
}
|
|
|
|
|
|
std::string
|
|
WavesAudioBackend::device_name () const
|
|
{
|
|
if (!_device) {
|
|
return "";
|
|
}
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::device_name (): " << _device->DeviceName () << std::endl;
|
|
|
|
return _device->DeviceName ();
|
|
}
|
|
|
|
|
|
float
|
|
WavesAudioBackend::sample_rate () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::sample_rate (): " << std::endl;
|
|
|
|
if (!_device) {
|
|
std::cerr << "WavesAudioBackend::sample_rate (): No device is set!" << std::endl;
|
|
return -1;
|
|
}
|
|
|
|
int sample_rate = _device->CurrentSamplingRate ();
|
|
|
|
// COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]->CurrentSamplingRate () returned " << sample_rate << std::endl;
|
|
|
|
return (float)sample_rate;
|
|
}
|
|
|
|
|
|
uint32_t
|
|
WavesAudioBackend::buffer_size () const
|
|
{
|
|
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::buffer_size (): " << std::endl;
|
|
|
|
if (!_device) {
|
|
std::cerr << "WavesAudioBackend::buffer_size (): No device is set!" << std::endl;
|
|
return 0;
|
|
}
|
|
|
|
int size = _device->CurrentBufferSize ();
|
|
|
|
// COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]->CurrentBufferSize () returned " << size << std::endl;
|
|
|
|
return (uint32_t)size;
|
|
}
|
|
|
|
|
|
SampleFormat
|
|
WavesAudioBackend::sample_format () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::sample_format ()" << std::endl;
|
|
return _sample_format;
|
|
}
|
|
|
|
|
|
bool
|
|
WavesAudioBackend::interleaved () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::interleaved ()" << std::endl;
|
|
|
|
return _interleaved;
|
|
}
|
|
|
|
|
|
uint32_t
|
|
WavesAudioBackend::input_channels () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::input_channels ()" << std::endl;
|
|
|
|
return _input_channels;
|
|
}
|
|
|
|
|
|
uint32_t
|
|
WavesAudioBackend::output_channels () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::output_channels ()" << std::endl;
|
|
|
|
return _output_channels;
|
|
}
|
|
|
|
|
|
std::string
|
|
WavesAudioBackend::control_app_name () const
|
|
{
|
|
std::string app_name = "";
|
|
|
|
if (_device && !dynamic_cast<WCMRNativeAudioNoneDevice*> (_device)) {
|
|
app_name = "PortAudioMayKnowIt";
|
|
}
|
|
|
|
return app_name;
|
|
}
|
|
|
|
|
|
void
|
|
WavesAudioBackend::launch_control_app ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::launch_control_app ()" << std::endl;
|
|
if (!_device) {
|
|
std::cerr << "WavesAudioBackend::launch_control_app (): No device is set!" << std::endl;
|
|
return;
|
|
}
|
|
|
|
WTErr err = _device->ShowConfigPanel (NULL);
|
|
|
|
if (eNoErr != err) {
|
|
std::cerr << "WavesAudioBackend::launch_control_app (): [" << _device->DeviceName () << "]->ShowConfigPanel () failed (" << err << ")!" << std::endl;
|
|
}
|
|
|
|
// COMMENTED DBG LOGS */ else std::cout << "WavesAudioBackend::launch_control_app (): [" << _device->DeviceName () << "]->ShowConfigPanel () successfully launched!" << std::endl;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::_start (bool for_latency_measurement)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_start ()" << std::endl;
|
|
|
|
if (!_device) {
|
|
std::cerr << "WavesAudioBackend::_start (): No device is set!" << std::endl;
|
|
stop();
|
|
return -1;
|
|
}
|
|
|
|
if (_register_system_audio_ports () != 0) {
|
|
std::cerr << "WavesAudioBackend::_start (): _register_system_audio_ports () failed!" << std::endl;
|
|
stop();
|
|
return -1;
|
|
}
|
|
|
|
if (_use_midi) {
|
|
if (_midi_device_manager.start () != 0) {
|
|
std::cerr << "WavesAudioBackend::_start (): _midi_device_manager.start () failed!" << std::endl;
|
|
stop();
|
|
return -1;
|
|
}
|
|
if (_register_system_midi_ports () != 0) {
|
|
std::cerr << "WavesAudioBackend::_start (): _register_system_midi_ports () failed!" << std::endl;
|
|
stop();
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (engine.reestablish_ports () != 0) {
|
|
std::cerr << "WavesAudioBackend::_start (): engine.reestablish_ports () failed!" << std::endl;
|
|
}
|
|
|
|
manager.registration_callback ();
|
|
|
|
WTErr retVal = _device->SetStreaming (true);
|
|
if (retVal != eNoErr) {
|
|
std::cerr << "WavesAudioBackend::_start (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
|
|
stop();
|
|
return -1;
|
|
}
|
|
|
|
if (_use_midi) {
|
|
if (_midi_device_manager.stream (true)) {
|
|
std::cerr << "WavesAudioBackend::_start (): _midi_device_manager.stream (true) failed!" << std::endl;
|
|
stop();
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void
|
|
WavesAudioBackend::_audio_device_callback (const float* input_buffer,
|
|
float* output_buffer,
|
|
unsigned long nframes,
|
|
framepos_t sample_time,
|
|
uint64_t cycle_start_time_nanos)
|
|
{
|
|
uint64_t dsp_start_time_nanos = __get_time_nanos();
|
|
// COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::_audio_device_callback ():" << _device->DeviceName () << std::endl;
|
|
_sample_time_at_cycle_start = sample_time;
|
|
_cycle_start_time_nanos = cycle_start_time_nanos;
|
|
|
|
if (_buffer_size != nframes) {
|
|
// COMMENTED DBG LOGS */ std::cout << "\tAudioEngine::thread_init_callback() buffer size and nframes are not equal: " << _buffer_size << "!=" << nframes << std::endl;
|
|
return;
|
|
}
|
|
|
|
_read_audio_data_from_device (input_buffer, nframes);
|
|
_read_midi_data_from_devices ();
|
|
|
|
if (_call_thread_init_callback) {
|
|
_call_thread_init_callback = false;
|
|
// COMMENTED DBG LOGS */ std::cout << "\tAudioEngine::thread_init_callback() invoked for " << std::hex << pthread_self() << std::dec << " !" << std::endl;
|
|
|
|
/* There is the possibility that the thread this runs in may change from
|
|
* callback to callback, so do it every time.
|
|
*/
|
|
_main_thread = pthread_self ();
|
|
|
|
AudioEngine::thread_init_callback (this);
|
|
}
|
|
|
|
if ( !engine.thread_initialised_for_audio_processing () ) {
|
|
std::cerr << "\tWavesAudioBackend::_audio_device_callback (): It's an attempt to call process callback from the thread which didn't initialize it " << std::endl;
|
|
|
|
AudioEngine::thread_init_callback (this);
|
|
}
|
|
|
|
if (pthread_equal (_main_thread, pthread_self()) == 0) {
|
|
#ifdef PTW32_VERSION
|
|
std::cerr << "Process thread ID has changed. Expected thread: " << _main_thread.p << " current thread: " << pthread_self().p << std::dec << " !" << std::endl;
|
|
#else
|
|
std::cerr << "Process thread ID has changed. Expected thread: " << _main_thread << " current thread: " << pthread_self() << std::dec << " !" << std::endl;
|
|
#endif
|
|
_main_thread = pthread_self();
|
|
}
|
|
|
|
engine.process_callback (nframes);
|
|
|
|
_write_audio_data_to_device (output_buffer, nframes);
|
|
_write_midi_data_to_devices (nframes);
|
|
|
|
uint64_t dsp_end_time_nanos = __get_time_nanos();
|
|
|
|
_dsp_load_accumulator -= *_dsp_load_history.begin();
|
|
_dsp_load_history.pop_front();
|
|
uint64_t dsp_load_nanos = dsp_end_time_nanos - dsp_start_time_nanos;
|
|
_dsp_load_accumulator += dsp_load_nanos;
|
|
_dsp_load_history.push_back(dsp_load_nanos);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::stop ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::stop ()" << std::endl;
|
|
|
|
WTErr wtErr = eNoErr;
|
|
int retVal = 0;
|
|
|
|
// COMMENTED DBG LOGS */ std::cout << "\t[" << _device->DeviceName () << "]" << std::endl;
|
|
|
|
if (_device) {
|
|
wtErr = _device->SetStreaming (false);
|
|
if (wtErr != eNoErr) {
|
|
std::cerr << "WavesAudioBackend::stop (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
|
|
retVal = -1;
|
|
}
|
|
}
|
|
|
|
_midi_device_manager.stop ();
|
|
_unregister_system_audio_ports ();
|
|
_unregister_system_midi_ports ();
|
|
|
|
return retVal;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::freewheel (bool start_stop)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::freewheel (" << start_stop << "):" << std::endl;
|
|
|
|
if (start_stop != _freewheeling) {
|
|
if (start_stop == true) {
|
|
WTErr retval = _device->SetStreaming (false);
|
|
if (retval != eNoErr) {
|
|
std::cerr << "WavesAudioBackend::freewheel (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
|
|
return -1;
|
|
}
|
|
_call_thread_init_callback = true;
|
|
_freewheel_thread ();
|
|
|
|
while (!engine.freewheeling()) {
|
|
sleep(0);
|
|
}
|
|
|
|
// freewheel thread was not activated successfully
|
|
if (_freewheel_thread_active == false) {
|
|
engine.freewheel_callback(false);
|
|
}
|
|
}
|
|
else {
|
|
_freewheel_thread_active = false; // stop _freewheel_thread ()
|
|
|
|
while (engine.freewheeling()) {
|
|
sleep(0);
|
|
}
|
|
|
|
_call_thread_init_callback = true;
|
|
WTErr retval = _device->SetStreaming (true);
|
|
if (retval != eNoErr) {
|
|
std::cerr << "WavesAudioBackend::freewheel (): [" << _device->DeviceName () << "]->SetStreaming () failed!" << std::endl;
|
|
return -1;
|
|
}
|
|
}
|
|
_freewheeling = start_stop;
|
|
}
|
|
// already doing what has been asked for
|
|
return 0;
|
|
}
|
|
|
|
|
|
void
|
|
WavesAudioBackend::_freewheel_thread ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_freewheel_thread ():" << std::endl;
|
|
if (!_freewheel_thread_active) { // Lets create it
|
|
|
|
// COMMENTED DBG LOGS */ std::cout << "\tCreating the thread _freewheel_thread () . . ." << std::endl;
|
|
pthread_attr_t attributes;
|
|
pthread_t thread_id;
|
|
|
|
ThreadData* thread_data = new ThreadData (this, boost::bind (&WavesAudioBackend::_freewheel_thread, this), __thread_stack_size ());
|
|
|
|
if (pthread_attr_init (&attributes)) {
|
|
std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_attr_init () failed!" << std::endl;
|
|
return;
|
|
}
|
|
|
|
if (pthread_attr_setstacksize (&attributes, __thread_stack_size ())) {
|
|
std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_attr_setstacksize () failed!" << std::endl;
|
|
return;
|
|
}
|
|
|
|
_freewheel_thread_active = true;
|
|
if ((pthread_create (&thread_id, &attributes, __start_process_thread, thread_data))) {
|
|
_freewheel_thread_active = false;
|
|
|
|
// release invoking thread
|
|
engine.freewheel_callback(true);
|
|
|
|
std::cerr << "WavesAudioBackend::freewheel_thread (): pthread_create () failed!" << std::endl;
|
|
return;
|
|
}
|
|
|
|
// COMMENTED DBG LOGS */ std::cout << "\t. . . _freewheel_thread () complete." << std::endl;
|
|
return;
|
|
}
|
|
|
|
// notify angine that freewheeling is started
|
|
engine.freewheel_callback(true);
|
|
|
|
if (_call_thread_init_callback) {
|
|
_call_thread_init_callback = false;
|
|
AudioEngine::thread_init_callback (this);
|
|
}
|
|
|
|
while (_freewheel_thread_active) {
|
|
engine.process_callback (_buffer_size);
|
|
}
|
|
|
|
// notify angine that freewheeling is stopped
|
|
engine.freewheel_callback(false);
|
|
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::_freewheel_thread (): FINISHED" << std::endl;
|
|
return;
|
|
}
|
|
|
|
|
|
float
|
|
WavesAudioBackend::dsp_load () const
|
|
{
|
|
// COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::dsp_load (): " << std::endl;
|
|
|
|
if (!_device) {
|
|
std::cerr << "WavesAudioBackend::cpu_load (): No device is set!" << std::endl;
|
|
return 0;
|
|
}
|
|
|
|
float average_dsp_load = (float)_dsp_load_accumulator/_dsp_load_history_length;
|
|
|
|
return ( average_dsp_load / _audio_cycle_period_nanos)*100.0;
|
|
}
|
|
|
|
|
|
void
|
|
WavesAudioBackend::_init_dsp_load_history()
|
|
{
|
|
if((_sample_rate <= 0.0) || (_buffer_size <= 0.0)) {
|
|
return;
|
|
}
|
|
|
|
_audio_cycle_period_nanos = ((uint64_t)1000000000L * _buffer_size) / _sample_rate;
|
|
|
|
_dsp_load_accumulator = 0;
|
|
|
|
_dsp_load_history_length = (_sample_rate + _buffer_size - 1) / _buffer_size;
|
|
// COMMENTED DBG LOGS */ std::cout << "\t\t_dsp_load_history_length = " << _dsp_load_history_length << std::endl;
|
|
_dsp_load_history = std::list<uint64_t>(_dsp_load_history_length, 0);
|
|
}
|
|
|
|
|
|
void
|
|
WavesAudioBackend::transport_start ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_start (): " << std::endl;
|
|
}
|
|
|
|
|
|
void
|
|
WavesAudioBackend::transport_stop ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_stop (): " << std::endl;
|
|
}
|
|
|
|
|
|
TransportState
|
|
WavesAudioBackend::transport_state () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_state (): " << std::endl;
|
|
return TransportStopped;
|
|
}
|
|
|
|
|
|
void
|
|
WavesAudioBackend::transport_locate (framepos_t pos)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_locate (" << pos << "): " << std::endl;
|
|
}
|
|
|
|
|
|
framepos_t
|
|
WavesAudioBackend::transport_frame () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::transport_frame (): " << std::endl;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::set_time_master (bool yn)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::set_time_master (): " << yn << std::endl;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::usecs_per_cycle () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::usecs_per_cycle (): " << std::endl;
|
|
return (1000000 * _sample_rate) / _buffer_size;
|
|
}
|
|
|
|
|
|
size_t
|
|
WavesAudioBackend::raw_buffer_size (DataType data_type)
|
|
{
|
|
// COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::raw_buffer_size (" << data_type.to_string () << "): " << std::endl;
|
|
switch (data_type) {
|
|
case DataType::AUDIO:
|
|
return WavesAudioPort::MAX_BUFFER_SIZE_BYTES;
|
|
break;
|
|
|
|
case DataType::MIDI:
|
|
return WavesMidiPort::MAX_BUFFER_SIZE_BYTES;
|
|
break;
|
|
|
|
default:
|
|
std::cerr << "WavesAudioBackend::raw_buffer_size (): unexpected data type (" << (uint32_t)data_type <<")!" << std::endl;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
framepos_t
|
|
WavesAudioBackend::sample_time ()
|
|
{
|
|
// WARNING: This is approximate calculation. Implementation of accurate calculation is pending.
|
|
// http://kokkinizita.linuxaudio.org/papers/usingdll.pdf
|
|
|
|
return _sample_time_at_cycle_start + ((__get_time_nanos () - _cycle_start_time_nanos)*_sample_rate)/1000000000L;
|
|
}
|
|
|
|
|
|
uint64_t
|
|
WavesAudioBackend::__get_time_nanos ()
|
|
{
|
|
#ifdef __APPLE__
|
|
// here we exploit the time counting API which is used by the WCMRCoreAudioDeviceManager. However,
|
|
// the API should be a part of WCMRCoreAudioDeviceManager to give a chance of being tied to the
|
|
// audio device transport timeß.
|
|
return AudioConvertHostTimeToNanos (AudioGetCurrentHostTime ());
|
|
|
|
#elif PLATFORM_WINDOWS
|
|
LARGE_INTEGER Count;
|
|
QueryPerformanceCounter (&Count);
|
|
return uint64_t ((Count.QuadPart * 1000000000L / __performance_counter_frequency));
|
|
#endif
|
|
}
|
|
|
|
|
|
framepos_t
|
|
WavesAudioBackend::sample_time_at_cycle_start ()
|
|
{
|
|
// COMMENTED FREQUENT DBG LOGS */ std::cout << "WavesAudioBackend::sample_time_at_cycle_start (): " << _sample_time_at_cycle_start << std::endl;
|
|
return _sample_time_at_cycle_start;
|
|
}
|
|
|
|
|
|
pframes_t
|
|
WavesAudioBackend::samples_since_cycle_start ()
|
|
{
|
|
pframes_t diff_sample_time;
|
|
diff_sample_time = sample_time () - _sample_time_at_cycle_start;
|
|
// COMMENTED DBG LOGS */ std::cout << "samples_since_cycle_start: " << diff_sample_time << std::endl;
|
|
|
|
return diff_sample_time;
|
|
}
|
|
|
|
|
|
bool
|
|
WavesAudioBackend::get_sync_offset (pframes_t& /*offset*/) const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "get_sync_offset: false" << std::endl;
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::create_process_thread (boost::function<void ()> func)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::create_process_thread ():" << std::endl;
|
|
int retVal;
|
|
pthread_attr_t attributes;
|
|
size_t stacksize_aligned;
|
|
pthread_t thread_id;
|
|
|
|
// Align stacksize to PTHREAD_STACK_MIN.
|
|
stacksize_aligned = __thread_stack_size ();
|
|
|
|
ThreadData* td = new ThreadData (this, func, stacksize_aligned);
|
|
|
|
if ((retVal = pthread_attr_init (&attributes))) {
|
|
std::cerr << "Cannot set thread attr init res = " << retVal << endmsg;
|
|
return -1;
|
|
}
|
|
|
|
if ((retVal = pthread_attr_setstacksize (&attributes, stacksize_aligned))) {
|
|
std::cerr << "Cannot set thread stack size (" << stacksize_aligned << ") res = " << retVal << endmsg;
|
|
return -1;
|
|
}
|
|
|
|
if ((retVal = pthread_create (&thread_id, &attributes, __start_process_thread, td))) {
|
|
std::cerr << "Cannot create thread res = " << retVal << endmsg;
|
|
return -1;
|
|
}
|
|
|
|
_backend_threads.push_back (thread_id);
|
|
// COMMENTED DBG LOGS */ std::cout << "\t\t\t. . . thread " << std::hex << thread_id << std::dec << " has been created" << std::endl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void*
|
|
WavesAudioBackend::__start_process_thread (void* arg)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__start_process_thread ():" << std::endl;
|
|
ThreadData* td = reinterpret_cast<ThreadData*> (arg);
|
|
boost::function<void ()> f = td->f;
|
|
delete td;
|
|
f ();
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::join_process_threads ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::join_process_thread ()" << std::endl;
|
|
int ret = 0;
|
|
|
|
for (std::vector<pthread_t>::const_iterator i = _backend_threads.begin ();
|
|
i != _backend_threads.end ();
|
|
++i) {
|
|
// COMMENTED DBG LOGS */ std::cout << "\t\t\tstopping thread " << std::hex << *i << std::dec << "...\n";
|
|
|
|
void* status;
|
|
if (pthread_join (*i, &status) != 0) {
|
|
std::cerr << "AudioEngine: cannot stop process thread !" << std::endl;
|
|
ret += -1;
|
|
}
|
|
// COMMENTED DBG LOGS */ std::cout << "\t\t\t\t...done" << std::endl;
|
|
}
|
|
// COMMENTED DBG LOGS */ std::cout << "\t\t\tall threads finished..." << std::endl;
|
|
_backend_threads.clear ();
|
|
// COMMENTED DBG LOGS */ std::cout << "\t\t\tthread list cleared..." << std::endl;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
bool
|
|
WavesAudioBackend::in_process_thread ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::in_process_thread ()" << std::endl;
|
|
if (pthread_equal (_main_thread, pthread_self()) != 0) {
|
|
return true;
|
|
}
|
|
for (std::vector<pthread_t>::const_iterator i = _backend_threads.begin ();
|
|
i != _backend_threads.end (); i++) {
|
|
if (pthread_equal (*i, pthread_self ()) != 0) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
size_t
|
|
WavesAudioBackend::__thread_stack_size ()
|
|
{
|
|
// Align stacksize to PTHREAD_STACK_MIN.
|
|
#if defined (__APPLE__)
|
|
return (((thread_stack_size () - 1) / PTHREAD_STACK_MIN) + 1) * PTHREAD_STACK_MIN;
|
|
#elif defined (PLATFORM_WINDOWS)
|
|
return thread_stack_size ();
|
|
#endif
|
|
}
|
|
|
|
|
|
uint32_t
|
|
WavesAudioBackend::process_thread_count ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::process_thread_count (): returns " << _backend_threads.size () << std::endl;
|
|
return _backend_threads.size ();
|
|
}
|
|
|
|
|
|
void
|
|
WavesAudioBackend::_read_audio_data_from_device (const float* input_buffer, pframes_t nframes)
|
|
{
|
|
#if defined(PLATFORM_WINDOWS)
|
|
const float **buffer = (const float**)input_buffer;
|
|
|
|
for(std::vector<WavesAudioPort*>::iterator it = _physical_audio_inputs.begin ();
|
|
it != _physical_audio_inputs.end();
|
|
++it)
|
|
{
|
|
ARDOUR::copy_vector ((*it)->buffer(), *buffer, nframes);
|
|
++buffer;
|
|
}
|
|
#else
|
|
std::vector<WavesAudioPort*>::iterator it = _physical_audio_inputs.begin ();
|
|
|
|
// Well, let's de-interleave here:
|
|
const Sample* source = input_buffer;
|
|
|
|
for (uint32_t chann_cnt = 0; (chann_cnt < _max_input_channels) && (it != _physical_audio_inputs.end ()); ++chann_cnt, ++source, ++it) {
|
|
const Sample* src = source;
|
|
Sample* tgt = (*it)->buffer ();
|
|
|
|
for (uint32_t frame = 0; frame < nframes; ++frame, src += _max_input_channels, ++tgt) {
|
|
*tgt = *src;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
WavesAudioBackend::_write_audio_data_to_device (float* output_buffer, pframes_t nframes)
|
|
{
|
|
#if defined(_WnonononoINDOWS)
|
|
float **buffer = (float**)output_buffer;
|
|
size_t copied_bytes = nframes*sizeof(float);
|
|
int i = 0;
|
|
for(std::vector<WavesAudioPort*>::iterator it = _physical_audio_outputs.begin ();
|
|
it != _physical_audio_outputs.end();
|
|
++it)
|
|
{
|
|
memcpy(*buffer, (*it)->buffer(), copied_bytes);
|
|
//*buffer = (*it)->buffer();
|
|
buffer++;
|
|
}
|
|
#else
|
|
// Well, let's interleave here:
|
|
std::vector<WavesAudioPort*>::iterator it = _physical_audio_outputs.begin ();
|
|
Sample* target = output_buffer;
|
|
|
|
for (uint32_t chann_cnt = 0;
|
|
(chann_cnt < _max_output_channels) && (it != _physical_audio_outputs.end ());
|
|
++chann_cnt, ++target, ++it) {
|
|
const Sample* src = (Sample*) ((*it)->get_buffer (nframes));
|
|
Sample* tgt = target;
|
|
for (uint32_t frame = 0; frame < nframes; ++frame, tgt += _max_output_channels, ++src) {
|
|
*tgt = *src;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
static boost::shared_ptr<WavesAudioBackend> __instance;
|
|
|
|
|
|
boost::shared_ptr<AudioBackend>
|
|
WavesAudioBackend::__waves_backend_factory (AudioEngine& e)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__waves_backend_factory ():" << std::endl;
|
|
if (!__instance) {
|
|
__instance.reset (new WavesAudioBackend (e));
|
|
}
|
|
return __instance;
|
|
}
|
|
|
|
|
|
#if defined(PLATFORM_WINDOWS)
|
|
|
|
uint64_t WavesAudioBackend::__performance_counter_frequency;
|
|
|
|
#endif
|
|
|
|
int
|
|
WavesAudioBackend::__instantiate (const std::string& arg1, const std::string& arg2)
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__instantiate ():" << "[" << arg1 << "], [" << arg2 << "]" << std::endl;
|
|
__instantiated_name = arg1;
|
|
#if defined(PLATFORM_WINDOWS)
|
|
|
|
LARGE_INTEGER Frequency;
|
|
QueryPerformanceFrequency(&Frequency);
|
|
__performance_counter_frequency = Frequency.QuadPart;
|
|
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
WavesAudioBackend::__deinstantiate ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__deinstantiate ():" << std::endl;
|
|
__instance.reset ();
|
|
return 0;
|
|
}
|
|
|
|
|
|
bool
|
|
WavesAudioBackend::__already_configured ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__already_configured ():" << std::endl;
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
WavesAudioBackend::__available ()
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::__available ():" << std::endl;
|
|
return true;
|
|
}
|
|
|
|
|
|
void*
|
|
WavesAudioBackend::private_handle () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WHY DO CALL IT: WavesAudioBackend::private_handle: " << std::endl;
|
|
return NULL;
|
|
}
|
|
|
|
|
|
bool
|
|
WavesAudioBackend::available () const
|
|
{
|
|
// COMMENTED SECONDARY DBG LOGS */// std::cout << "WavesAudioBackend::available: " << std::endl;
|
|
return true;
|
|
}
|
|
|
|
|
|
const std::string&
|
|
WavesAudioBackend::my_name () const
|
|
{
|
|
// COMMENTED SECONDARY DBG LOGS */// std::cout << "WavesAudioBackend::my_name: " << _port_prefix_name << std::endl;
|
|
return __instantiated_name;
|
|
}
|
|
|
|
|
|
bool
|
|
WavesAudioBackend::can_monitor_input () const
|
|
{
|
|
// COMMENTED DBG LOGS */ std::cout << "WavesAudioBackend::can_monitor_input: " << std::endl;
|
|
return false;
|
|
}
|
|
|
|
std::string WavesAudioBackend::__instantiated_name;
|
|
|
|
AudioBackendInfo WavesAudioBackend::__backend_info = {
|
|
#ifdef __APPLE__
|
|
"CoreAudio",
|
|
#elif PLATFORM_WINDOWS
|
|
"ASIO",
|
|
#endif
|
|
__instantiate,
|
|
WavesAudioBackend::__deinstantiate,
|
|
WavesAudioBackend::__waves_backend_factory,
|
|
WavesAudioBackend::__already_configured,
|
|
WavesAudioBackend::__available,
|
|
};
|
|
|
|
|