410 lines
12 KiB
C++
410 lines
12 KiB
C++
/*
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Copyright (C) 2013 Valeriy Kamyshniy
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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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#ifndef __libardour_waves_audiobackend_h__
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#define __libardour_waves_audiobackend_h__
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#include <string>
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#include <vector>
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#include <list>
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#include <stdint.h>
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#include <stdlib.h>
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#include <boost/function.hpp>
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#include "ardour/types.h"
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#include "ardour/audio_backend.h"
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#include "waves_midi_device_manager.h"
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#ifdef __APPLE__
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#include <WCMRCoreAudioDeviceManager.h>
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class ArdourAudioDeviceManager : public WCMRCoreAudioDeviceManager
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{
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public:
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ArdourAudioDeviceManager (WCMRAudioDeviceManagerClient *client) : WCMRCoreAudioDeviceManager (client, eAllDevices) {};
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};
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#elif defined (PLATFORM_WINDOWS)
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#include <WCMRPortAudioDeviceManager.h>
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class ArdourAudioDeviceManager : public WCMRPortAudioDeviceManager
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{
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public:
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ArdourAudioDeviceManager (WCMRAudioDeviceManagerClient *client) : WCMRPortAudioDeviceManager (client, eAllDevices) {};
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};
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#endif
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namespace ARDOUR {
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class AudioEngine;
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class PortEngine;
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class PortManager;
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class WavesAudioBackend;
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class WavesDataPort;
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class WavesAudioPort;
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class WavesMidiPort;
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class WavesAudioBackend : public AudioBackend, WCMRAudioDeviceManagerClient
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{
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public:
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WavesAudioBackend (AudioEngine& e, AudioBackendInfo&);
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virtual ~WavesAudioBackend ();
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/* AUDIOBACKEND API */
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virtual std::string name () const;
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virtual bool is_realtime () const;
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virtual bool requires_driver_selection () const;
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virtual std::vector<std::string> enumerate_drivers () const;
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virtual int set_driver (const std::string& /*drivername*/);
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virtual std::vector<DeviceStatus> enumerate_devices () const;
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virtual std::vector<float> available_sample_rates (const std::string& device) const;
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virtual float default_sample_rate () const;
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virtual std::vector<uint32_t> available_buffer_sizes (const std::string& device) const;
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virtual uint32_t available_input_channel_count (const std::string& device) const;
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virtual uint32_t available_output_channel_count (const std::string& device) const;
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virtual bool can_change_sample_rate_when_running () const;
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virtual bool can_change_buffer_size_when_running () const;
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virtual int set_device_name (const std::string& name);
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virtual int drop_device();
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virtual int set_sample_rate (float);
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virtual int set_buffer_size (uint32_t);
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virtual int set_sample_format (SampleFormat);
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virtual int set_interleaved (bool yn);
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virtual int set_input_channels (uint32_t);
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virtual int set_output_channels (uint32_t);
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virtual int set_systemic_input_latency (uint32_t);
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virtual int set_systemic_output_latency (uint32_t);
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int set_systemic_midi_input_latency (std::string const, uint32_t) { return 0; }
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int set_systemic_midi_output_latency (std::string const, uint32_t) { return 0; }
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virtual std::string device_name () const;
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virtual float sample_rate () const;
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virtual uint32_t buffer_size () const;
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virtual SampleFormat sample_format () const;
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virtual bool interleaved () const;
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virtual uint32_t input_channels () const;
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virtual uint32_t output_channels () const;
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virtual uint32_t systemic_input_latency () const;
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virtual uint32_t systemic_output_latency () const;
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uint32_t systemic_midi_input_latency (std::string const) const { return 0; }
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uint32_t systemic_midi_output_latency (std::string const) const { return 0; }
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virtual std::string control_app_name () const;
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virtual void launch_control_app ();
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virtual std::vector<std::string> enumerate_midi_options () const;
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virtual int set_midi_option (const std::string& option);
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virtual std::string midi_option () const;
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std::vector<DeviceStatus> enumerate_midi_devices () const {
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return std::vector<AudioBackend::DeviceStatus> ();
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}
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int set_midi_device_enabled (std::string const, bool) {
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return 0;
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}
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bool midi_device_enabled (std::string const) const {
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return true;
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}
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bool can_set_systemic_midi_latencies () const {
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return false;
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}
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virtual int _start (bool for_latency_measurement);
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virtual int stop ();
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virtual int freewheel (bool start_stop);
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virtual float dsp_load () const ;
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virtual void transport_start ();
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virtual void transport_stop ();
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virtual TransportState transport_state () const;
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virtual void transport_locate (framepos_t pos);
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virtual framepos_t transport_frame () const;
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virtual int set_time_master (bool yn);
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virtual int usecs_per_cycle () const;
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virtual size_t raw_buffer_size (DataType data_type);
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virtual pframes_t sample_time ();
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virtual pframes_t sample_time_at_cycle_start ();
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virtual pframes_t samples_since_cycle_start ();
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virtual bool get_sync_offset (pframes_t& offset) const;
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virtual int create_process_thread (boost::function<void ()> func);
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virtual int join_process_threads ();
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virtual bool in_process_thread ();
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virtual uint32_t process_thread_count ();
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virtual void update_latencies ();
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virtual bool speed_and_position (double& speed, framepos_t& position) {
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speed = 0.0;
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position = 0;
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return false;
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}
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/* PORTENGINE API */
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virtual void* private_handle () const;
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virtual const std::string& my_name () const;
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virtual bool available () const;
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virtual uint32_t port_name_size () const;
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virtual int set_port_name (PortHandle port_handle, const std::string& port_name);
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virtual std::string get_port_name (PortHandle port_handle ) const;
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virtual PortHandle get_port_by_name (const std::string& port_name) const;
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virtual int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>& port_handles) const;
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virtual DataType port_data_type (PortHandle port_handle) const;
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virtual PortHandle register_port (const std::string& shortname, ARDOUR::DataType type, ARDOUR::PortFlags flags);
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virtual void unregister_port (PortHandle port_handle);
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virtual int connect (const std::string& src, const std::string& dst);
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virtual int disconnect (const std::string& src, const std::string& dst);
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virtual int connect (PortHandle port_handle, const std::string& port_name);
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virtual int disconnect (PortHandle port_handle, const std::string& port_name);
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virtual int disconnect_all (PortHandle port_handle);
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virtual bool connected (PortHandle port_handle, bool process_callback_safe);
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virtual bool connected_to (PortHandle port_handle, const std::string& port_name, bool process_callback_safe);
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virtual bool physically_connected (PortHandle port_handle, bool process_callback_safe);
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virtual int get_connections (PortHandle port_handle, std::vector<std::string>&, bool process_callback_safe);
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virtual int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
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virtual int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
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virtual uint32_t get_midi_event_count (void* port_buffer);
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virtual void midi_clear (void* port_buffer);
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virtual bool can_monitor_input () const;
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virtual int request_input_monitoring (PortHandle port_handle, bool);
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virtual int ensure_input_monitoring (PortHandle port_handle, bool);
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virtual bool monitoring_input (PortHandle port_handle);
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virtual void set_latency_range (PortHandle port_handle, bool for_playback, LatencyRange);
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virtual LatencyRange get_latency_range (PortHandle port_handle, bool for_playback);
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virtual bool port_is_physical (PortHandle port_handle) const;
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virtual void get_physical_outputs (DataType type, std::vector<std::string>& port_names);
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virtual void get_physical_inputs (DataType type, std::vector<std::string>& port_names);
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virtual ChanCount n_physical_outputs () const;
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virtual ChanCount n_physical_inputs () const;
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virtual void* get_buffer (PortHandle port_handle, pframes_t frames);
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static AudioBackendInfo& backend_info () { return __backend_info; }
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virtual void AudioDeviceManagerNotification (NotificationReason reason, void* pParam);
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private:
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//ArdourAudioDeviceManagerClient _audio_device_manager_client;
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ArdourAudioDeviceManager _audio_device_manager;
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WavesMidiDeviceManager _midi_device_manager;
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WCMRAudioDevice *_device;
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SampleFormat _sample_format;
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bool _interleaved;
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static std::string __instantiated_name;
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uint32_t _input_channels;
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uint32_t _max_input_channels;
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uint32_t _output_channels;
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uint32_t _max_output_channels;
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float _sample_rate;
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uint32_t _buffer_size;
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uint32_t _systemic_input_latency;
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uint32_t _systemic_output_latency;
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bool _call_thread_init_callback;
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std::vector<pthread_t> _backend_threads;
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static const size_t __max_raw_midi_buffer_size;
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static const std::vector<std::string> __available_midi_options;
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bool _use_midi;
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struct ThreadData {
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WavesAudioBackend* engine;
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boost::function<void ()> f;
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size_t stacksize;
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ThreadData (WavesAudioBackend* e, boost::function<void ()> fp, size_t stacksz)
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: engine (e) , f (fp) , stacksize (stacksz) {}
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};
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static boost::shared_ptr<AudioBackend> __waves_backend_factory (AudioEngine& e);
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static int __instantiate (const std::string& arg1, const std::string& arg2);
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static int __deinstantiate ();
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static bool __already_configured ();
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static void* __start_process_thread (void*);
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static uint64_t __get_time_nanos ();
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static size_t __thread_stack_size ();
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void _audio_device_callback (const float* input_audio_buffer,
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float* output_buffer,
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unsigned long nframes,
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pframes_t sample_time,
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uint64_t cycle_start_time_nanos);
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int _reset_device (uint32_t buffer_size, float sample_rate);
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void _changed_midi_devices ();
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// DO change sample rate and buffer size
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int _buffer_size_change(uint32_t new_buffer_size);
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int _sample_rate_change(float new_sample_rate);
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int _device_list_change();
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int _register_system_audio_ports ();
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int _register_system_midi_ports ();
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int _read_midi_data_from_devices ();
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int _write_midi_data_to_devices (pframes_t);
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pframes_t _ms_to_sample_time (int32_t time_ms) const;
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int32_t _sample_time_to_ms (pframes_t sample_time) const ;
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void _read_audio_data_from_device (const float* input_buffer, pframes_t nframes);
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void _write_audio_data_to_device (float* output_buffer, pframes_t nframes);
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void _unregister_system_audio_ports ();
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void _unregister_system_midi_ports ();
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WavesDataPort* _register_port (const std::string& port_name, ARDOUR::DataType type, ARDOUR::PortFlags flags);
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inline bool _registered (PortHandle port_handle) const
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{
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return std::find (_ports.begin (), _ports.end (), (WavesDataPort*)port_handle) != _ports.end ();
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}
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WavesDataPort* _find_port (const std::string& port_name) const;
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void _freewheel_thread ();
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std::vector<WavesAudioPort*> _physical_audio_inputs;
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std::vector<WavesAudioPort*> _physical_audio_outputs;
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std::vector<WavesMidiPort*> _physical_midi_inputs;
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std::vector<WavesMidiPort*> _physical_midi_outputs;
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std::vector<WavesDataPort*> _ports;
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static AudioBackendInfo __backend_info;
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#if defined (PLATFORM_WINDOWS)
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static uint64_t __performance_counter_frequency;
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#endif
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uint64_t _cycle_start_time_nanos;
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pframes_t _sample_time_at_cycle_start;
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bool _freewheeling;
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bool _freewheel_thread_active;
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friend class WavesMidiDeviceManager;
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std::list<uint64_t> _dsp_load_history;
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size_t _dsp_load_history_length;
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uint64_t _dsp_load_accumulator;
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float _audio_cycle_period_nanos;
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void _init_dsp_load_history();
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};
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} // namespace
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#endif /* __libardour_waves_audiobackend_h__ */
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