170 lines
5.5 KiB
C++
170 lines
5.5 KiB
C++
/*
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* Copyright (C) 2014 Robin Gareus <robin@gareus.org>
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* Copyright (C) 2013 Paul Davis
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*
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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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*
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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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*
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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 __libbackend_dummy_audiobackend_h__
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#define __libbackend_dummy_audiobackend_h__
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#include <string>
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#include <vector>
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#include <map>
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#include <set>
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#include <stdint.h>
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#include "ardour/types.h"
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#include "ardour/audio_backend.h"
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namespace ARDOUR {
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class DummyAudioBackend : public AudioBackend {
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public:
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DummyAudioBackend (AudioEngine& e);
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~DummyAudioBackend ();
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/* AUDIOBACKEND API */
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std::string name () const;
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bool is_realtime () const;
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std::vector<DeviceStatus> enumerate_devices () const;
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std::vector<float> available_sample_rates (const std::string& device) const;
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std::vector<uint32_t> available_buffer_sizes (const std::string& device) const;
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uint32_t available_input_channel_count (const std::string& device) const;
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uint32_t available_output_channel_count (const std::string& device) const;
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bool can_change_sample_rate_when_running () const;
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bool can_change_buffer_size_when_running () const;
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int set_device_name (const std::string&);
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int set_sample_rate (float);
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int set_buffer_size (uint32_t);
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int set_interleaved (bool yn);
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int set_input_channels (uint32_t);
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int set_output_channels (uint32_t);
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int set_systemic_input_latency (uint32_t);
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int set_systemic_output_latency (uint32_t);
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/* Retrieving parameters */
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std::string device_name () const;
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float sample_rate () const;
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uint32_t buffer_size () const;
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bool interleaved () const;
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uint32_t input_channels () const;
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uint32_t output_channels () const;
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uint32_t systemic_input_latency () const;
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uint32_t systemic_output_latency () const;
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/* External control app */
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std::string control_app_name () const { return std::string (); }
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void launch_control_app () {}
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/* MIDI */
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std::vector<std::string> enumerate_midi_options () const;
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int set_midi_option (const std::string&);
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std::string midi_option () const;
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/* State Control */
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protected:
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int _start (bool for_latency_measurement);
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public:
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int stop ();
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int freewheel (bool);
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float dsp_load () const;
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size_t raw_buffer_size (DataType t);
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/* Process time */
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pframes_t sample_time ();
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pframes_t sample_time_at_cycle_start ();
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pframes_t samples_since_cycle_start ();
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int create_process_thread (boost::function<void()> func);
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int join_process_threads ();
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bool in_process_thread ();
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uint32_t process_thread_count ();
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void update_latencies ();
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/* PORTENGINE API */
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void* private_handle () const;
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const std::string& my_name () const;
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bool available () const;
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uint32_t port_name_size () const;
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int set_port_name (PortHandle, const std::string&);
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std::string get_port_name (PortHandle) const;
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PortHandle get_port_by_name (const std::string&) const;
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int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>&) const;
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DataType port_data_type (PortHandle) const;
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PortHandle register_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
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void unregister_port (PortHandle);
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int connect (const std::string& src, const std::string& dst);
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int disconnect (const std::string& src, const std::string& dst);
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int connect (PortHandle, const std::string&);
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int disconnect (PortHandle, const std::string&);
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int disconnect_all (PortHandle);
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bool connected (PortHandle, bool process_callback_safe);
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bool connected_to (PortHandle, const std::string&, bool process_callback_safe);
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bool physically_connected (PortHandle, bool process_callback_safe);
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int get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
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/* MIDI */
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int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
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int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
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uint32_t get_midi_event_count (void* port_buffer);
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void midi_clear (void* port_buffer);
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/* Monitoring */
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bool can_monitor_input () const;
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int request_input_monitoring (PortHandle, bool);
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int ensure_input_monitoring (PortHandle, bool);
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bool monitoring_input (PortHandle);
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/* Latency management */
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void set_latency_range (PortHandle, bool for_playback, LatencyRange);
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LatencyRange get_latency_range (PortHandle, bool for_playback);
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/* Discovering physical ports */
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bool port_is_physical (PortHandle) const;
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void get_physical_outputs (DataType type, std::vector<std::string>&);
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void get_physical_inputs (DataType type, std::vector<std::string>&);
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ChanCount n_physical_outputs () const;
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ChanCount n_physical_inputs () const;
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/* Getting access to the data buffer for a port */
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void* get_buffer (PortHandle, pframes_t);
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private:
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std::string _instance_name;
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}; // class DummyAudioBackend
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} // namespace
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#endif /* __libbackend_dummy_audiobackend_h__ */
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