2 Copyright (C) 2013 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 #ifndef __libardour_waves_audiobackend_h__
21 #define __libardour_waves_audiobackend_h__
30 #include <boost/function.hpp>
32 #include "ardour/types.h"
33 #include "ardour/audio_backend.h"
35 #include "waves_midi_device_manager.h"
39 #include <WCMRCoreAudioDeviceManager.h>
41 class ArdourAudioDeviceManager : public WCMRCoreAudioDeviceManager
44 ArdourAudioDeviceManager (WCMRAudioDeviceManagerClient *client) : WCMRCoreAudioDeviceManager (client, eAllDevices) {};
47 #elif defined (PLATFORM_WINDOWS)
49 #include <WCMRPortAudioDeviceManager.h>
51 class ArdourAudioDeviceManager : public WCMRPortAudioDeviceManager
54 ArdourAudioDeviceManager (WCMRAudioDeviceManagerClient *client) : WCMRPortAudioDeviceManager (client, eAllDevices) {};
64 class WavesAudioBackend;
70 class WavesAudioBackend : public AudioBackend, WCMRAudioDeviceManagerClient
73 WavesAudioBackend (AudioEngine& e);
74 virtual ~WavesAudioBackend ();
76 /* AUDIOBACKEND API */
78 virtual std::string name () const;
80 virtual bool is_realtime () const;
82 virtual bool requires_driver_selection () const;
84 virtual std::vector<std::string> enumerate_drivers () const;
86 virtual int set_driver (const std::string& /*drivername*/);
88 virtual std::vector<DeviceStatus> enumerate_devices () const;
90 virtual std::vector<float> available_sample_rates (const std::string& device) const;
92 virtual float default_sample_rate () const;
94 virtual std::vector<uint32_t> available_buffer_sizes (const std::string& device) const;
96 virtual uint32_t default_buffer_size (const std::string& device) const;
98 virtual uint32_t available_input_channel_count (const std::string& device) const;
100 virtual uint32_t available_output_channel_count (const std::string& device) const;
102 virtual bool can_change_sample_rate_when_running () const;
104 virtual bool can_change_buffer_size_when_running () const;
106 virtual int set_device_name (const std::string& name);
108 virtual int drop_device();
110 virtual int set_sample_rate (float);
112 virtual int set_buffer_size (uint32_t);
114 virtual int set_sample_format (SampleFormat);
116 virtual int set_interleaved (bool yn);
118 virtual int set_input_channels (uint32_t);
120 virtual int set_output_channels (uint32_t);
122 virtual int set_systemic_input_latency (uint32_t);
124 virtual int set_systemic_output_latency (uint32_t);
126 int set_systemic_midi_input_latency (std::string const, uint32_t) { return 0; }
127 int set_systemic_midi_output_latency (std::string const, uint32_t) { return 0; }
129 virtual int reset_device ();
131 virtual std::string device_name () const;
133 virtual float sample_rate () const;
135 virtual uint32_t buffer_size () const;
137 virtual SampleFormat sample_format () const;
139 virtual bool interleaved () const;
141 virtual uint32_t input_channels () const;
143 virtual uint32_t output_channels () const;
145 virtual uint32_t systemic_input_latency () const;
147 virtual uint32_t systemic_output_latency () const;
149 uint32_t systemic_midi_input_latency (std::string const) const { return 0; }
151 uint32_t systemic_midi_output_latency (std::string const) const { return 0; }
153 virtual std::string control_app_name () const;
155 virtual void launch_control_app ();
157 virtual std::vector<std::string> enumerate_midi_options () const;
159 virtual int set_midi_option (const std::string& option);
161 virtual std::string midi_option () const;
163 std::vector<DeviceStatus> enumerate_midi_devices () const {
164 return std::vector<AudioBackend::DeviceStatus> ();
166 int set_midi_device_enabled (std::string const, bool) {
169 bool midi_device_enabled (std::string const) const {
172 bool can_set_systemic_midi_latencies () const {
176 virtual int _start (bool for_latency_measurement);
180 virtual int freewheel (bool start_stop);
182 virtual float dsp_load () const ;
184 virtual void transport_start ();
186 virtual void transport_stop ();
188 virtual TransportState transport_state () const;
190 virtual void transport_locate (framepos_t pos);
192 virtual framepos_t transport_frame () const;
194 virtual int set_time_master (bool yn);
196 virtual int usecs_per_cycle () const;
198 virtual size_t raw_buffer_size (DataType data_type);
200 virtual framepos_t sample_time ();
202 virtual framepos_t sample_time_at_cycle_start ();
204 virtual pframes_t samples_since_cycle_start ();
206 virtual bool get_sync_offset (pframes_t& offset) const;
208 virtual int create_process_thread (boost::function<void ()> func);
210 virtual int join_process_threads ();
212 virtual bool in_process_thread ();
214 virtual uint32_t process_thread_count ();
216 virtual void update_latencies ();
218 virtual bool speed_and_position (double& speed, framepos_t& position) {
226 virtual void* private_handle () const;
228 virtual const std::string& my_name () const;
230 virtual bool available () const;
232 virtual uint32_t port_name_size () const;
234 virtual int set_port_name (PortHandle port_handle, const std::string& port_name);
236 virtual std::string get_port_name (PortHandle port_handle ) const;
238 virtual PortHandle get_port_by_name (const std::string& port_name) const;
240 virtual int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>& port_handles) const;
242 virtual DataType port_data_type (PortHandle port_handle) const;
244 virtual PortHandle register_port (const std::string& shortname, ARDOUR::DataType type, ARDOUR::PortFlags flags);
246 virtual void unregister_port (PortHandle port_handle);
248 virtual int connect (const std::string& src, const std::string& dst);
250 virtual int disconnect (const std::string& src, const std::string& dst);
252 virtual int connect (PortHandle port_handle, const std::string& port_name);
254 virtual int disconnect (PortHandle port_handle, const std::string& port_name);
256 virtual int disconnect_all (PortHandle port_handle);
258 virtual bool connected (PortHandle port_handle, bool process_callback_safe);
260 virtual bool connected_to (PortHandle port_handle, const std::string& port_name, bool process_callback_safe);
262 virtual bool physically_connected (PortHandle port_handle, bool process_callback_safe);
264 virtual int get_connections (PortHandle port_handle, std::vector<std::string>&, bool process_callback_safe);
266 virtual int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
268 virtual int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
270 virtual uint32_t get_midi_event_count (void* port_buffer);
272 virtual void midi_clear (void* port_buffer);
274 virtual bool can_monitor_input () const;
276 virtual int request_input_monitoring (PortHandle port_handle, bool);
278 virtual int ensure_input_monitoring (PortHandle port_handle, bool);
280 virtual bool monitoring_input (PortHandle port_handle);
282 virtual void set_latency_range (PortHandle port_handle, bool for_playback, LatencyRange);
284 virtual LatencyRange get_latency_range (PortHandle port_handle, bool for_playback);
286 virtual bool port_is_physical (PortHandle port_handle) const;
288 virtual void get_physical_outputs (DataType type, std::vector<std::string>& port_names);
290 virtual void get_physical_inputs (DataType type, std::vector<std::string>& port_names);
292 virtual ChanCount n_physical_outputs () const;
294 virtual ChanCount n_physical_inputs () const;
296 virtual void* get_buffer (PortHandle port_handle, pframes_t frames);
298 static AudioBackendInfo& backend_info () { return __backend_info; }
300 virtual void AudioDeviceManagerNotification (NotificationReason reason, void* pParam);
303 //ArdourAudioDeviceManagerClient _audio_device_manager_client;
304 ArdourAudioDeviceManager _audio_device_manager;
305 WavesMidiDeviceManager _midi_device_manager;
307 WCMRAudioDevice *_device;
308 SampleFormat _sample_format;
310 static std::string __instantiated_name;
311 uint32_t _input_channels;
312 uint32_t _max_input_channels;
313 uint32_t _output_channels;
314 uint32_t _max_output_channels;
316 uint32_t _buffer_size;
317 uint32_t _systemic_input_latency;
318 uint32_t _systemic_output_latency;
319 bool _call_thread_init_callback;
320 std::vector<pthread_t> _backend_threads;
321 pthread_t _main_thread;
322 static const size_t __max_raw_midi_buffer_size;
324 static const std::vector<std::string> __available_midi_options;
328 WavesAudioBackend* engine;
329 boost::function<void ()> f;
332 ThreadData (WavesAudioBackend* e, boost::function<void ()> fp, size_t stacksz)
333 : engine (e) , f (fp) , stacksize (stacksz) {}
336 static boost::shared_ptr<AudioBackend> __waves_backend_factory (AudioEngine& e);
337 static int __instantiate (const std::string& arg1, const std::string& arg2);
338 static int __deinstantiate ();
339 static bool __already_configured ();
340 static bool __available ();
342 static void* __start_process_thread (void*);
343 static uint64_t __get_time_nanos ();
345 static size_t __thread_stack_size ();
347 void _audio_device_callback (const float* input_audio_buffer,
348 float* output_buffer,
349 unsigned long nframes,
350 framepos_t sample_time,
351 uint64_t cycle_start_time_nanos);
353 void _changed_midi_devices ();
355 // DO change sample rate and buffer size
356 int _buffer_size_change(uint32_t new_buffer_size);
357 int _sample_rate_change(float new_sample_rate);
359 int _register_system_audio_ports ();
360 int _register_system_midi_ports ();
362 int _read_midi_data_from_devices ();
363 int _write_midi_data_to_devices (pframes_t);
365 pframes_t _ms_to_sample_time (int32_t time_ms) const;
366 int32_t _sample_time_to_ms (pframes_t sample_time) const ;
368 void _read_audio_data_from_device (const float* input_buffer, pframes_t nframes);
369 void _write_audio_data_to_device (float* output_buffer, pframes_t nframes);
371 void _unregister_system_audio_ports ();
372 void _unregister_system_midi_ports ();
374 WavesDataPort* _register_port (const std::string& port_name, ARDOUR::DataType type, ARDOUR::PortFlags flags);
375 inline bool _registered (PortHandle port_handle) const
377 return std::find (_ports.begin (), _ports.end (), (WavesDataPort*)port_handle) != _ports.end ();
380 WavesDataPort* _find_port (const std::string& port_name) const;
381 void _freewheel_thread ();
383 std::vector<WavesAudioPort*> _physical_audio_inputs;
384 std::vector<WavesAudioPort*> _physical_audio_outputs;
385 std::vector<WavesMidiPort*> _physical_midi_inputs;
386 std::vector<WavesMidiPort*> _physical_midi_outputs;
387 std::vector<WavesDataPort*> _ports;
388 static AudioBackendInfo __backend_info;
390 #if defined (PLATFORM_WINDOWS)
391 static uint64_t __performance_counter_frequency;
393 uint64_t _cycle_start_time_nanos;
394 framepos_t _sample_time_at_cycle_start;
397 bool _freewheel_thread_active;
399 friend class WavesMidiDeviceManager;
401 std::list<uint64_t> _dsp_load_history;
402 size_t _dsp_load_history_length;
403 uint64_t _dsp_load_accumulator;
404 float _audio_cycle_period_nanos;
405 void _init_dsp_load_history();
410 #endif /* __libardour_waves_audiobackend_h__ */