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 available_input_channel_count (const std::string& device) const;
98 virtual uint32_t available_output_channel_count (const std::string& device) const;
100 virtual bool can_change_sample_rate_when_running () const;
102 virtual bool can_change_buffer_size_when_running () const;
104 virtual int set_device_name (const std::string& name);
106 virtual int drop_device();
108 virtual int set_sample_rate (float);
110 virtual int set_buffer_size (uint32_t);
112 virtual int set_sample_format (SampleFormat);
114 virtual int set_interleaved (bool yn);
116 virtual int set_input_channels (uint32_t);
118 virtual int set_output_channels (uint32_t);
120 virtual int set_systemic_input_latency (uint32_t);
122 virtual int set_systemic_output_latency (uint32_t);
124 int set_systemic_midi_input_latency (std::string const, uint32_t) { return 0; }
125 int set_systemic_midi_output_latency (std::string const, uint32_t) { return 0; }
127 virtual int reset_device ();
129 virtual std::string device_name () const;
131 virtual float sample_rate () const;
133 virtual uint32_t buffer_size () const;
135 virtual SampleFormat sample_format () const;
137 virtual bool interleaved () const;
139 virtual uint32_t input_channels () const;
141 virtual uint32_t output_channels () const;
143 virtual uint32_t systemic_input_latency () const;
145 virtual uint32_t systemic_output_latency () const;
147 uint32_t systemic_midi_input_latency (std::string const) const { return 0; }
149 uint32_t systemic_midi_output_latency (std::string const) const { return 0; }
151 virtual std::string control_app_name () const;
153 virtual void launch_control_app ();
155 virtual std::vector<std::string> enumerate_midi_options () const;
157 virtual int set_midi_option (const std::string& option);
159 virtual std::string midi_option () const;
161 std::vector<DeviceStatus> enumerate_midi_devices () const {
162 return std::vector<AudioBackend::DeviceStatus> ();
164 int set_midi_device_enabled (std::string const, bool) {
167 bool midi_device_enabled (std::string const) const {
170 bool can_set_systemic_midi_latencies () const {
174 virtual int _start (bool for_latency_measurement);
178 virtual int freewheel (bool start_stop);
180 virtual float dsp_load () const ;
182 virtual void transport_start ();
184 virtual void transport_stop ();
186 virtual TransportState transport_state () const;
188 virtual void transport_locate (framepos_t pos);
190 virtual framepos_t transport_frame () const;
192 virtual int set_time_master (bool yn);
194 virtual int usecs_per_cycle () const;
196 virtual size_t raw_buffer_size (DataType data_type);
198 virtual framepos_t sample_time ();
200 virtual framepos_t sample_time_at_cycle_start ();
202 virtual pframes_t samples_since_cycle_start ();
204 virtual bool get_sync_offset (pframes_t& offset) const;
206 virtual int create_process_thread (boost::function<void ()> func);
208 virtual int join_process_threads ();
210 virtual bool in_process_thread ();
212 virtual uint32_t process_thread_count ();
214 virtual void update_latencies ();
216 virtual bool speed_and_position (double& speed, framepos_t& position) {
224 virtual void* private_handle () const;
226 virtual const std::string& my_name () const;
228 virtual bool available () const;
230 virtual uint32_t port_name_size () const;
232 virtual int set_port_name (PortHandle port_handle, const std::string& port_name);
234 virtual std::string get_port_name (PortHandle port_handle ) const;
236 virtual PortHandle get_port_by_name (const std::string& port_name) const;
238 virtual int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>& port_handles) const;
240 virtual DataType port_data_type (PortHandle port_handle) const;
242 virtual PortHandle register_port (const std::string& shortname, ARDOUR::DataType type, ARDOUR::PortFlags flags);
244 virtual void unregister_port (PortHandle port_handle);
246 virtual int connect (const std::string& src, const std::string& dst);
248 virtual int disconnect (const std::string& src, const std::string& dst);
250 virtual int connect (PortHandle port_handle, const std::string& port_name);
252 virtual int disconnect (PortHandle port_handle, const std::string& port_name);
254 virtual int disconnect_all (PortHandle port_handle);
256 virtual bool connected (PortHandle port_handle, bool process_callback_safe);
258 virtual bool connected_to (PortHandle port_handle, const std::string& port_name, bool process_callback_safe);
260 virtual bool physically_connected (PortHandle port_handle, bool process_callback_safe);
262 virtual int get_connections (PortHandle port_handle, std::vector<std::string>&, bool process_callback_safe);
264 virtual int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
266 virtual int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
268 virtual uint32_t get_midi_event_count (void* port_buffer);
270 virtual void midi_clear (void* port_buffer);
272 virtual bool can_monitor_input () const;
274 virtual int request_input_monitoring (PortHandle port_handle, bool);
276 virtual int ensure_input_monitoring (PortHandle port_handle, bool);
278 virtual bool monitoring_input (PortHandle port_handle);
280 virtual void set_latency_range (PortHandle port_handle, bool for_playback, LatencyRange);
282 virtual LatencyRange get_latency_range (PortHandle port_handle, bool for_playback);
284 virtual bool port_is_physical (PortHandle port_handle) const;
286 virtual void get_physical_outputs (DataType type, std::vector<std::string>& port_names);
288 virtual void get_physical_inputs (DataType type, std::vector<std::string>& port_names);
290 virtual ChanCount n_physical_outputs () const;
292 virtual ChanCount n_physical_inputs () const;
294 virtual void* get_buffer (PortHandle port_handle, pframes_t frames);
296 static AudioBackendInfo& backend_info () { return __backend_info; }
298 virtual void AudioDeviceManagerNotification (NotificationReason reason, void* pParam);
301 //ArdourAudioDeviceManagerClient _audio_device_manager_client;
302 ArdourAudioDeviceManager _audio_device_manager;
303 WavesMidiDeviceManager _midi_device_manager;
305 WCMRAudioDevice *_device;
306 SampleFormat _sample_format;
308 static std::string __instantiated_name;
309 uint32_t _input_channels;
310 uint32_t _max_input_channels;
311 uint32_t _output_channels;
312 uint32_t _max_output_channels;
314 uint32_t _buffer_size;
315 uint32_t _systemic_input_latency;
316 uint32_t _systemic_output_latency;
317 bool _call_thread_init_callback;
318 std::vector<pthread_t> _backend_threads;
319 pthread_t _main_thread;
320 static const size_t __max_raw_midi_buffer_size;
322 static const std::vector<std::string> __available_midi_options;
326 WavesAudioBackend* engine;
327 boost::function<void ()> f;
330 ThreadData (WavesAudioBackend* e, boost::function<void ()> fp, size_t stacksz)
331 : engine (e) , f (fp) , stacksize (stacksz) {}
334 static boost::shared_ptr<AudioBackend> __waves_backend_factory (AudioEngine& e);
335 static int __instantiate (const std::string& arg1, const std::string& arg2);
336 static int __deinstantiate ();
337 static bool __already_configured ();
338 static bool __available ();
340 static void* __start_process_thread (void*);
341 static uint64_t __get_time_nanos ();
343 static size_t __thread_stack_size ();
345 void _audio_device_callback (const float* input_audio_buffer,
346 float* output_buffer,
347 unsigned long nframes,
348 framepos_t sample_time,
349 uint64_t cycle_start_time_nanos);
351 void _changed_midi_devices ();
353 // DO change sample rate and buffer size
354 int _buffer_size_change(uint32_t new_buffer_size);
355 int _sample_rate_change(float new_sample_rate);
357 int _register_system_audio_ports ();
358 int _register_system_midi_ports ();
360 int _read_midi_data_from_devices ();
361 int _write_midi_data_to_devices (pframes_t);
363 pframes_t _ms_to_sample_time (int32_t time_ms) const;
364 int32_t _sample_time_to_ms (pframes_t sample_time) const ;
366 void _read_audio_data_from_device (const float* input_buffer, pframes_t nframes);
367 void _write_audio_data_to_device (float* output_buffer, pframes_t nframes);
369 void _unregister_system_audio_ports ();
370 void _unregister_system_midi_ports ();
372 WavesDataPort* _register_port (const std::string& port_name, ARDOUR::DataType type, ARDOUR::PortFlags flags);
373 inline bool _registered (PortHandle port_handle) const
375 return std::find (_ports.begin (), _ports.end (), (WavesDataPort*)port_handle) != _ports.end ();
378 WavesDataPort* _find_port (const std::string& port_name) const;
379 void _freewheel_thread ();
381 std::vector<WavesAudioPort*> _physical_audio_inputs;
382 std::vector<WavesAudioPort*> _physical_audio_outputs;
383 std::vector<WavesMidiPort*> _physical_midi_inputs;
384 std::vector<WavesMidiPort*> _physical_midi_outputs;
385 std::vector<WavesDataPort*> _ports;
386 static AudioBackendInfo __backend_info;
388 #if defined (PLATFORM_WINDOWS)
389 static uint64_t __performance_counter_frequency;
391 uint64_t _cycle_start_time_nanos;
392 framepos_t _sample_time_at_cycle_start;
395 bool _freewheel_thread_active;
397 friend class WavesMidiDeviceManager;
399 std::list<uint64_t> _dsp_load_history;
400 size_t _dsp_load_history_length;
401 uint64_t _dsp_load_accumulator;
402 float _audio_cycle_period_nanos;
403 void _init_dsp_load_history();
408 #endif /* __libardour_waves_audiobackend_h__ */