/* Copyright (C) 2013 Waves Audio Ltd. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __libardour_waves_audiobackend_h__ #define __libardour_waves_audiobackend_h__ #include #include #include #include #include #include #include "ardour/types.h" #include "ardour/audio_backend.h" #include "waves_midi_device_manager.h" #ifdef __APPLE__ #include class ArdourAudioDeviceManager : public WCMRCoreAudioDeviceManager { public: ArdourAudioDeviceManager (WCMRAudioDeviceManagerClient *client) : WCMRCoreAudioDeviceManager (client, eAllDevices) {}; }; #elif defined (PLATFORM_WINDOWS) #include class ArdourAudioDeviceManager : public WCMRPortAudioDeviceManager { public: ArdourAudioDeviceManager (WCMRAudioDeviceManagerClient *client) : WCMRPortAudioDeviceManager (client, eAllDevices) {}; }; #endif namespace ARDOUR { class AudioEngine; class PortEngine; class PortManager; class WavesAudioBackend; class WavesDataPort; class WavesAudioPort; class WavesMidiPort; class WavesAudioBackend : public AudioBackend, WCMRAudioDeviceManagerClient { public: WavesAudioBackend (AudioEngine& e); virtual ~WavesAudioBackend (); /* AUDIOBACKEND API */ virtual std::string name () const; virtual bool is_realtime () const; virtual bool requires_driver_selection () const; virtual std::vector enumerate_drivers () const; virtual int set_driver (const std::string& /*drivername*/); virtual std::vector enumerate_devices () const; virtual std::vector available_sample_rates (const std::string& device) const; virtual float default_sample_rate () const; virtual std::vector available_buffer_sizes (const std::string& device) const; virtual uint32_t available_input_channel_count (const std::string& device) const; virtual uint32_t available_output_channel_count (const std::string& device) const; virtual bool can_change_sample_rate_when_running () const; virtual bool can_change_buffer_size_when_running () const; virtual int set_device_name (const std::string& name); virtual int drop_device(); virtual int set_sample_rate (float); virtual int set_buffer_size (uint32_t); virtual int set_sample_format (SampleFormat); virtual int set_interleaved (bool yn); virtual int set_input_channels (uint32_t); virtual int set_output_channels (uint32_t); virtual int set_systemic_input_latency (uint32_t); virtual int set_systemic_output_latency (uint32_t); int set_systemic_midi_input_latency (std::string const, uint32_t) { return 0; } int set_systemic_midi_output_latency (std::string const, uint32_t) { return 0; } virtual int reset_device (); virtual std::string device_name () const; virtual float sample_rate () const; virtual uint32_t buffer_size () const; virtual SampleFormat sample_format () const; virtual bool interleaved () const; virtual uint32_t input_channels () const; virtual uint32_t output_channels () const; virtual uint32_t systemic_input_latency () const; virtual uint32_t systemic_output_latency () const; uint32_t systemic_midi_input_latency (std::string const) const { return 0; } uint32_t systemic_midi_output_latency (std::string const) const { return 0; } virtual std::string control_app_name () const; virtual void launch_control_app (); virtual std::vector enumerate_midi_options () const; virtual int set_midi_option (const std::string& option); virtual std::string midi_option () const; std::vector enumerate_midi_devices () const { return std::vector (); } int set_midi_device_enabled (std::string const, bool) { return 0; } bool midi_device_enabled (std::string const) const { return true; } bool can_set_systemic_midi_latencies () const { return false; } virtual int _start (bool for_latency_measurement); virtual int stop (); virtual int freewheel (bool start_stop); virtual float dsp_load () const ; virtual void transport_start (); virtual void transport_stop (); virtual TransportState transport_state () const; virtual void transport_locate (framepos_t pos); virtual framepos_t transport_frame () const; virtual int set_time_master (bool yn); virtual int usecs_per_cycle () const; virtual size_t raw_buffer_size (DataType data_type); virtual framepos_t sample_time (); virtual framepos_t sample_time_at_cycle_start (); virtual pframes_t samples_since_cycle_start (); virtual bool get_sync_offset (pframes_t& offset) const; virtual int create_process_thread (boost::function func); virtual int join_process_threads (); virtual bool in_process_thread (); virtual uint32_t process_thread_count (); virtual void update_latencies (); virtual bool speed_and_position (double& speed, framepos_t& position) { speed = 0.0; position = 0; return false; } /* PORTENGINE API */ virtual void* private_handle () const; virtual const std::string& my_name () const; virtual bool available () const; virtual uint32_t port_name_size () const; virtual int set_port_name (PortHandle port_handle, const std::string& port_name); virtual std::string get_port_name (PortHandle port_handle ) const; virtual PortHandle get_port_by_name (const std::string& port_name) const; virtual int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector& port_handles) const; virtual DataType port_data_type (PortHandle port_handle) const; virtual PortHandle register_port (const std::string& shortname, ARDOUR::DataType type, ARDOUR::PortFlags flags); virtual void unregister_port (PortHandle port_handle); virtual int connect (const std::string& src, const std::string& dst); virtual int disconnect (const std::string& src, const std::string& dst); virtual int connect (PortHandle port_handle, const std::string& port_name); virtual int disconnect (PortHandle port_handle, const std::string& port_name); virtual int disconnect_all (PortHandle port_handle); virtual bool connected (PortHandle port_handle, bool process_callback_safe); virtual bool connected_to (PortHandle port_handle, const std::string& port_name, bool process_callback_safe); virtual bool physically_connected (PortHandle port_handle, bool process_callback_safe); virtual int get_connections (PortHandle port_handle, std::vector&, bool process_callback_safe); virtual int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index); virtual int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size); virtual uint32_t get_midi_event_count (void* port_buffer); virtual void midi_clear (void* port_buffer); virtual bool can_monitor_input () const; virtual int request_input_monitoring (PortHandle port_handle, bool); virtual int ensure_input_monitoring (PortHandle port_handle, bool); virtual bool monitoring_input (PortHandle port_handle); virtual void set_latency_range (PortHandle port_handle, bool for_playback, LatencyRange); virtual LatencyRange get_latency_range (PortHandle port_handle, bool for_playback); virtual bool port_is_physical (PortHandle port_handle) const; virtual void get_physical_outputs (DataType type, std::vector& port_names); virtual void get_physical_inputs (DataType type, std::vector& port_names); virtual ChanCount n_physical_outputs () const; virtual ChanCount n_physical_inputs () const; virtual void* get_buffer (PortHandle port_handle, pframes_t frames); static AudioBackendInfo& backend_info () { return __backend_info; } virtual void AudioDeviceManagerNotification (NotificationReason reason, void* pParam); private: //ArdourAudioDeviceManagerClient _audio_device_manager_client; ArdourAudioDeviceManager _audio_device_manager; WavesMidiDeviceManager _midi_device_manager; WCMRAudioDevice *_device; SampleFormat _sample_format; bool _interleaved; static std::string __instantiated_name; uint32_t _input_channels; uint32_t _max_input_channels; uint32_t _output_channels; uint32_t _max_output_channels; float _sample_rate; uint32_t _buffer_size; uint32_t _systemic_input_latency; uint32_t _systemic_output_latency; bool _call_thread_init_callback; std::vector _backend_threads; pthread_t _main_thread; static const size_t __max_raw_midi_buffer_size; static const std::vector __available_midi_options; bool _use_midi; struct ThreadData { WavesAudioBackend* engine; boost::function f; size_t stacksize; ThreadData (WavesAudioBackend* e, boost::function fp, size_t stacksz) : engine (e) , f (fp) , stacksize (stacksz) {} }; static boost::shared_ptr __waves_backend_factory (AudioEngine& e); static int __instantiate (const std::string& arg1, const std::string& arg2); static int __deinstantiate (); static bool __already_configured (); static bool __available (); static void* __start_process_thread (void*); static uint64_t __get_time_nanos (); static size_t __thread_stack_size (); void _audio_device_callback (const float* input_audio_buffer, float* output_buffer, unsigned long nframes, framepos_t sample_time, uint64_t cycle_start_time_nanos); void _changed_midi_devices (); // DO change sample rate and buffer size int _buffer_size_change(uint32_t new_buffer_size); int _sample_rate_change(float new_sample_rate); int _register_system_audio_ports (); int _register_system_midi_ports (); int _read_midi_data_from_devices (); int _write_midi_data_to_devices (pframes_t); pframes_t _ms_to_sample_time (int32_t time_ms) const; int32_t _sample_time_to_ms (pframes_t sample_time) const ; void _read_audio_data_from_device (const float* input_buffer, pframes_t nframes); void _write_audio_data_to_device (float* output_buffer, pframes_t nframes); void _unregister_system_audio_ports (); void _unregister_system_midi_ports (); WavesDataPort* _register_port (const std::string& port_name, ARDOUR::DataType type, ARDOUR::PortFlags flags); inline bool _registered (PortHandle port_handle) const { return std::find (_ports.begin (), _ports.end (), (WavesDataPort*)port_handle) != _ports.end (); } WavesDataPort* _find_port (const std::string& port_name) const; void _freewheel_thread (); std::vector _physical_audio_inputs; std::vector _physical_audio_outputs; std::vector _physical_midi_inputs; std::vector _physical_midi_outputs; std::vector _ports; static AudioBackendInfo __backend_info; #if defined (PLATFORM_WINDOWS) static uint64_t __performance_counter_frequency; #endif uint64_t _cycle_start_time_nanos; framepos_t _sample_time_at_cycle_start; bool _freewheeling; bool _freewheel_thread_active; friend class WavesMidiDeviceManager; std::list _dsp_load_history; size_t _dsp_load_history_length; uint64_t _dsp_load_accumulator; float _audio_cycle_period_nanos; void _init_dsp_load_history(); }; } // namespace #endif /* __libardour_waves_audiobackend_h__ */