#include <boost/shared_ptr.hpp>
+#include "pbd/natsort.h"
#include "ardour/audio_backend.h"
+#include "ardour/dsp_load_calculator.h"
#include "ardour/system_exec.h"
#include "ardour/types.h"
+#include "ardouralsautil/deviceinfo.h"
+
#include "zita-alsa-pcmi.h"
#include "alsa_rawmidi.h"
#include "alsa_sequencer.h"
+#include "alsa_slave.h"
namespace ARDOUR {
public:
AlsaMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size);
AlsaMidiEvent (const AlsaMidiEvent& other);
- ~AlsaMidiEvent ();
size_t size () const { return _size; };
pframes_t timestamp () const { return _timestamp; };
- const unsigned char* const_data () const { return _data; };
- unsigned char* data () { return _data; };
+ const uint8_t* data () const { return _data; };
bool operator< (const AlsaMidiEvent &other) const { return timestamp () < other.timestamp (); };
private:
size_t _size;
pframes_t _timestamp;
- uint8_t *_data;
+ uint8_t _data[MaxAlsaMidiEventSize];
};
-typedef std::vector<boost::shared_ptr<AlsaMidiEvent> > AlsaMidiBuffer;
+typedef std::vector<AlsaMidiEvent> AlsaMidiBuffer;
class AlsaPort {
protected:
virtual ~AlsaPort ();
const std::string& name () const { return _name; }
+ const std::string& pretty_name () const { return _pretty_name; }
PortFlags flags () const { return _flags; }
int set_name (const std::string &name) { _name = name; return 0; }
+ int set_pretty_name (const std::string &name) { _pretty_name = name; return 0; }
virtual DataType type () const = 0;
bool is_connected (const AlsaPort *port) const;
bool is_physically_connected () const;
- const std::
vector<AlsaPort *>& get_connections () const { return _connections; }
+ const std::
set<AlsaPort *>& get_connections () const { return _connections; }
int connect (AlsaPort *port);
int disconnect (AlsaPort *port);
virtual void* get_buffer (pframes_t nframes) = 0;
- const LatencyRange& latency_range (bool for_playback) const
+ const LatencyRange latency_range (bool for_playback) const
{
return for_playback ? _playback_latency_range : _capture_latency_range;
}
private:
AlsaAudioBackend &_alsa_backend;
std::string _name;
+ std::string _pretty_name;
const PortFlags _flags;
LatencyRange _capture_latency_range;
LatencyRange _playback_latency_range;
- std::
vector<AlsaPort*> _connections;
+ std::
set<AlsaPort*> _connections;
void _connect (AlsaPort* , bool);
void _disconnect (AlsaPort* , bool);
DataType type () const { return DataType::MIDI; };
void* get_buffer (pframes_t nframes);
- const AlsaMidiBuffer const_buffer () const { return _buffer[_bufperiod]; }
+ const AlsaMidiBuffer * const_buffer () const { return & _buffer[_bufperiod]; }
void next_period() { if (_n_periods > 1) { get_buffer(0); _bufperiod = (_bufperiod + 1) % _n_periods; } }
- void set_n_periods(int n) { if (n > 0 && n < 3) { _n_periods = n; } }
+ void set_n_periods(int n) { if (n > 0 && n < 4) { _n_periods = n; } }
private:
- AlsaMidiBuffer _buffer[2];
+ AlsaMidiBuffer _buffer[3];
int _n_periods;
int _bufperiod;
}; // class AlsaMidiPort
+class AlsaDeviceReservation
+{
+ public:
+ AlsaDeviceReservation ();
+ AlsaDeviceReservation (const char* device_name);
+ ~AlsaDeviceReservation ();
+
+ bool acquire_device (const char* device_name);
+ void release_device ();
+
+ private:
+ ARDOUR::SystemExec* _device_reservation;
+ PBD::ScopedConnectionList _reservation_connection;
+ void reservation_stdout (std::string, size_t);
+ bool _reservation_succeeded;
+};
+
class AlsaAudioBackend : public AudioBackend {
friend class AlsaPort;
public:
std::string name () const;
bool is_realtime () const;
+ bool use_separate_input_and_output_devices () const { return true; }
+ bool match_input_output_devices_or_none () const { return true; }
+ bool can_set_period_size () const { return true; }
+
std::vector<DeviceStatus> enumerate_devices () const;
+ std::vector<DeviceStatus> enumerate_input_devices () const;
+ std::vector<DeviceStatus> enumerate_output_devices () const;
std::vector<float> available_sample_rates (const std::string& device) const;
+ std::vector<float> available_sample_rates2 (const std::string&, const std::string&) const;
std::vector<uint32_t> available_buffer_sizes (const std::string& device) const;
+ std::vector<uint32_t> available_buffer_sizes2 (const std::string&, const std::string&) const;
+ std::vector<uint32_t> available_period_sizes (const std::string& driver) const;
uint32_t available_input_channel_count (const std::string& device) const;
uint32_t available_output_channel_count (const std::string& device) const;
bool can_change_sample_rate_when_running () const;
bool can_change_buffer_size_when_running () const;
+ bool can_change_systemic_latency_when_running () const { return true; }
+
int set_device_name (const std::string&);
+ int set_input_device_name (const std::string&);
+ int set_output_device_name (const std::string&);
int set_sample_rate (float);
int set_buffer_size (uint32_t);
+ int set_peridod_size (uint32_t);
int set_interleaved (bool yn);
int set_input_channels (uint32_t);
int set_output_channels (uint32_t);
/* Retrieving parameters */
std::string device_name () const;
+ std::string input_device_name () const;
+ std::string output_device_name () const;
float sample_rate () const;
uint32_t buffer_size () const;
+ uint32_t period_size () const;
bool interleaved () const;
uint32_t input_channels () const;
uint32_t output_channels () const;
size_t raw_buffer_size (DataType t);
/* Process time */
- pframes_t sample_time ();
- pframes_t sample_time_at_cycle_start ();
+ framepos_t sample_time ();
+ framepos_t sample_time_at_cycle_start ();
pframes_t samples_since_cycle_start ();
int create_process_thread (boost::function<void()> func);
std::string get_port_name (PortHandle) const;
PortHandle get_port_by_name (const std::string&) const;
+ int get_port_property (PortHandle, const std::string& key, std::string& value, std::string& type) const;
+ int set_port_property (PortHandle, const std::string& key, const std::string& value, const std::string& type);
+
int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>&) const;
DataType port_data_type (PortHandle) const;
int get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
/* MIDI */
- int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
+ int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
uint32_t get_midi_event_count (void* port_buffer);
void midi_clear (void* port_buffer);
bool _run; /* keep going or stop, ardour thread */
bool _active; /* is running, process thread */
+ bool _freewheel;
bool _freewheeling;
bool _measure_latency;
+ uint64_t _last_process_start;
+
static std::vector<std::string> _midi_options;
- static std::vector<AudioBackend::DeviceStatus> _audio_device_status;
+ static std::vector<AudioBackend::DeviceStatus> _input_audio_device_status;
+ static std::vector<AudioBackend::DeviceStatus> _output_audio_device_status;
+ static std::vector<AudioBackend::DeviceStatus> _duplex_audio_device_status;
static std::vector<AudioBackend::DeviceStatus> _midi_device_status;
+ static ARDOUR::ALSADeviceInfo _input_audio_device_info;
+ static ARDOUR::ALSADeviceInfo _output_audio_device_info;
- mutable std::string _audio_device;
+ mutable std::string _input_audio_device;
+ mutable std::string _output_audio_device;
std::string _midi_driver_option;
/* audio device reservation */
- ARDOUR::SystemExec *_device_reservation;
- PBD::ScopedConnectionList _reservation_connection;
- void reservation_stdout (std::string, size_t);
- bool acquire_device(const char* device_name);
- void release_device();
- bool _reservation_succeeded;
+ AlsaDeviceReservation _device_reservation;
/* audio settings */
float _samplerate;
/* processing */
float _dsp_load;
- uint64_t _processed_samples;
+ ARDOUR::DSPLoadCalculator _dsp_load_calc;
+ framecnt_t _processed_samples;
pthread_t _main_thread;
+ /* DLL, track main process callback timing */
+ double _t0, _t1;
+
/* process threads */
static void* alsa_process_thread (void *);
std::vector<pthread_t> _threads;
/* port engine */
PortHandle add_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
int register_system_audio_ports ();
- int register_system_midi_ports ();
+ int register_system_midi_ports (const std::string device = "");
void unregister_ports (bool system_only = false);
- std::vector<AlsaPort *> _ports;
std::vector<AlsaPort *> _system_inputs;
std::vector<AlsaPort *> _system_outputs;
std::vector<AlsaPort *> _system_midi_in;
std::vector<AlsaPort *> _system_midi_out;
+ struct SortByPortName
+ {
+ bool operator ()(const AlsaPort* lhs, const AlsaPort* rhs) const
+ {
+ return PBD::naturally_less (lhs->name ().c_str (), rhs->name ().c_str ());
+ }
+ };
+
+ typedef std::map<std::string, AlsaPort *> PortMap; // fast lookup in _ports
+ typedef std::set<AlsaPort *, SortByPortName> PortIndex; // fast lookup in _ports
+ PortMap _portmap;
+ PortIndex _ports;
+
std::vector<AlsaMidiOut *> _rmidi_out;
std::vector<AlsaMidiIn *> _rmidi_in;
+ unsigned _midi_ins;
+ unsigned _midi_outs;
+
struct PortConnectData {
std::string a;
std::string b;
}
bool valid_port (PortHandle port) const {
- return std::find (_ports.begin (), _ports.end (), (AlsaPort*)port) != _ports.end ();
+ return std::find (_ports.begin(), _ports.end(), static_cast<AlsaPort*>(port)) != _ports.end ();
}
- AlsaPort * find_port (const std::string& port_name) const {
- for (std::vector<AlsaPort*>::const_iterator it = _ports.begin (); it != _ports.end (); ++it) {
- if ((*it)->name () == port_name) {
- return *it;
- }
+ AlsaPort* find_port (const std::string& port_name) const {
+ PortMap::const_iterator it = _portmap.find (port_name);
+ if (it == _portmap.end()) {
+ return NULL;
}
- return NULL;
+ return (*it).second;
}
+ void update_systemic_audio_latencies ();
+ void update_systemic_midi_latencies ();
+
+ /* additional re-sampled I/O */
+ bool add_slave (const char* slave_device,
+ unsigned int slave_rate,
+ unsigned int slave_spp,
+ unsigned int duplex = 3);
+
+ class AudioSlave : public AlsaDeviceReservation, public AlsaAudioSlave {
+ public:
+ AudioSlave (
+ const char* device,
+ unsigned int duplex,
+ unsigned int master_rate,
+ unsigned int master_samples_per_period,
+ unsigned int slave_rate,
+ unsigned int slave_samples_per_period,
+ unsigned int periods_per_cycle);
+
+ ~AudioSlave ();
+
+ bool active; // set in sync with process-cb
+ bool halt;
+ bool dead;
+
+ std::vector<AlsaPort *> inputs;
+ std::vector<AlsaPort *> outputs;
+
+ PBD::Signal0<void> UpdateLatency;
+ PBD::ScopedConnection latency_connection;
+
+ protected:
+ void update_latencies (uint32_t, uint32_t);
+
+ private:
+ PBD::ScopedConnection _halted_connection;
+ void halted ();
+ };
+
+ typedef std::vector<AudioSlave*> AudioSlaves;
+ AudioSlaves _slaves;
+
}; // class AlsaAudioBackend
} // namespace
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