2 Copyright (C) 2013 Valeriy Kamyshniy
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 (_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, AudioBackendInfo&);
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 virtual std::string device_name () const;
126 virtual float sample_rate () const;
128 virtual uint32_t buffer_size () const;
130 virtual SampleFormat sample_format () const;
132 virtual bool interleaved () const;
134 virtual uint32_t input_channels () const;
136 virtual uint32_t output_channels () const;
138 virtual uint32_t systemic_input_latency () const;
140 virtual uint32_t systemic_output_latency () const;
142 virtual std::string control_app_name () const;
144 virtual void launch_control_app ();
146 virtual std::vector<std::string> enumerate_midi_options () const;
148 virtual int set_midi_option (const std::string& option);
150 virtual std::string midi_option () const;
152 virtual int _start (bool for_latency_measurement);
156 virtual int freewheel (bool start_stop);
158 virtual float dsp_load () const ;
160 virtual void transport_start ();
162 virtual void transport_stop ();
164 virtual TransportState transport_state () const;
166 virtual void transport_locate (framepos_t pos);
168 virtual framepos_t transport_frame () const;
170 virtual int set_time_master (bool yn);
172 virtual int usecs_per_cycle () const;
174 virtual size_t raw_buffer_size (DataType data_type);
176 virtual pframes_t sample_time ();
178 virtual pframes_t sample_time_at_cycle_start ();
180 virtual pframes_t samples_since_cycle_start ();
182 virtual bool get_sync_offset (pframes_t& offset) const;
184 virtual int create_process_thread (boost::function<void ()> func);
186 virtual int join_process_threads ();
188 virtual bool in_process_thread ();
190 virtual uint32_t process_thread_count ();
192 virtual void update_latencies ();
194 virtual bool speed_and_position (double& speed, framepos_t& position) {
202 virtual void* private_handle () const;
204 virtual const std::string& my_name () const;
206 virtual bool available () const;
208 virtual uint32_t port_name_size () const;
210 virtual int set_port_name (PortHandle port_handle, const std::string& port_name);
212 virtual std::string get_port_name (PortHandle port_handle ) const;
214 virtual PortHandle get_port_by_name (const std::string& port_name) const;
216 virtual int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>& port_handles) const;
218 virtual DataType port_data_type (PortHandle port_handle) const;
220 virtual PortHandle register_port (const std::string& shortname, ARDOUR::DataType type, ARDOUR::PortFlags flags);
222 virtual void unregister_port (PortHandle port_handle);
224 virtual int connect (const std::string& src, const std::string& dst);
226 virtual int disconnect (const std::string& src, const std::string& dst);
228 virtual int connect (PortHandle port_handle, const std::string& port_name);
230 virtual int disconnect (PortHandle port_handle, const std::string& port_name);
232 virtual int disconnect_all (PortHandle port_handle);
234 virtual bool connected (PortHandle port_handle, bool process_callback_safe);
236 virtual bool connected_to (PortHandle port_handle, const std::string& port_name, bool process_callback_safe);
238 virtual bool physically_connected (PortHandle port_handle, bool process_callback_safe);
240 virtual int get_connections (PortHandle port_handle, std::vector<std::string>&, bool process_callback_safe);
242 virtual int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
244 virtual int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
246 virtual uint32_t get_midi_event_count (void* port_buffer);
248 virtual void midi_clear (void* port_buffer);
250 virtual bool can_monitor_input () const;
252 virtual int request_input_monitoring (PortHandle port_handle, bool);
254 virtual int ensure_input_monitoring (PortHandle port_handle, bool);
256 virtual bool monitoring_input (PortHandle port_handle);
258 virtual void set_latency_range (PortHandle port_handle, bool for_playback, LatencyRange);
260 virtual LatencyRange get_latency_range (PortHandle port_handle, bool for_playback);
262 virtual bool port_is_physical (PortHandle port_handle) const;
264 virtual void get_physical_outputs (DataType type, std::vector<std::string>& port_names);
266 virtual void get_physical_inputs (DataType type, std::vector<std::string>& port_names);
268 virtual ChanCount n_physical_outputs () const;
270 virtual ChanCount n_physical_inputs () const;
272 virtual void* get_buffer (PortHandle port_handle, pframes_t frames);
274 static AudioBackendInfo& backend_info () { return __backend_info; }
276 virtual void AudioDeviceManagerNotification (NotificationReason reason, void* pParam);
279 //ArdourAudioDeviceManagerClient _audio_device_manager_client;
280 ArdourAudioDeviceManager _audio_device_manager;
281 WavesMidiDeviceManager _midi_device_manager;
283 WCMRAudioDevice *_device;
284 SampleFormat _sample_format;
286 static std::string __instantiated_name;
287 uint32_t _input_channels;
288 uint32_t _max_input_channels;
289 uint32_t _output_channels;
290 uint32_t _max_output_channels;
292 uint32_t _buffer_size;
293 uint32_t _systemic_input_latency;
294 uint32_t _systemic_output_latency;
295 bool _call_thread_init_callback;
296 std::vector<pthread_t> _backend_threads;
297 static const size_t __max_raw_midi_buffer_size;
299 static const std::vector<std::string> __available_midi_options;
303 WavesAudioBackend* engine;
304 boost::function<void ()> f;
307 ThreadData (WavesAudioBackend* e, boost::function<void ()> fp, size_t stacksz)
308 : engine (e) , f (fp) , stacksize (stacksz) {}
311 static boost::shared_ptr<AudioBackend> __waves_backend_factory (AudioEngine& e);
312 static int __instantiate (const std::string& arg1, const std::string& arg2);
313 static int __deinstantiate ();
314 static bool __already_configured ();
316 static void* __start_process_thread (void*);
317 static uint64_t __get_time_nanos ();
319 static size_t __thread_stack_size ();
321 void _audio_device_callback (const float* input_audio_buffer,
322 float* output_buffer,
323 unsigned long nframes,
324 pframes_t sample_time,
325 uint64_t cycle_start_time_nanos);
327 int _reset_device (uint32_t buffer_size, float sample_rate);
328 void _changed_midi_devices ();
330 // DO change sample rate and buffer size
331 int _buffer_size_change(uint32_t new_buffer_size);
332 int _sample_rate_change(float new_sample_rate);
334 int _device_list_change();
336 int _register_system_audio_ports ();
337 int _register_system_midi_ports ();
339 int _read_midi_data_from_devices ();
340 int _write_midi_data_to_devices (pframes_t);
342 pframes_t _ms_to_sample_time (int32_t time_ms) const;
343 int32_t _sample_time_to_ms (pframes_t sample_time) const ;
345 void _read_audio_data_from_device (const float* input_buffer, pframes_t nframes);
346 void _write_audio_data_to_device (float* output_buffer, pframes_t nframes);
348 void _unregister_system_audio_ports ();
349 void _unregister_system_midi_ports ();
351 WavesDataPort* _register_port (const std::string& port_name, ARDOUR::DataType type, ARDOUR::PortFlags flags);
352 inline bool _registered (PortHandle port_handle) const
354 return std::find (_ports.begin (), _ports.end (), (WavesDataPort*)port_handle) != _ports.end ();
357 WavesDataPort* _find_port (const std::string& port_name) const;
358 void _freewheel_thread ();
360 std::vector<WavesAudioPort*> _physical_audio_inputs;
361 std::vector<WavesAudioPort*> _physical_audio_outputs;
362 std::vector<WavesMidiPort*> _physical_midi_inputs;
363 std::vector<WavesMidiPort*> _physical_midi_outputs;
364 std::vector<WavesDataPort*> _ports;
365 static AudioBackendInfo __backend_info;
367 #if defined (_WINDOWS)
368 static uint64_t __performance_counter_frequency;
370 uint64_t _cycle_start_time_nanos;
371 pframes_t _sample_time_at_cycle_start;
374 bool _freewheel_thread_active;
376 friend class WavesMidiDeviceManager;
378 std::list<uint64_t> _dsp_load_history;
379 size_t _dsp_load_history_length;
380 uint64_t _dsp_load_accumulator;
381 float _audio_cycle_period_nanos;
382 void _init_dsp_load_history();
387 #endif /* __libardour_waves_audiobackend_h__ */