org.tritonus.midi.device.alsa

Class AlsaSequencer

java.lang.Object

org.tritonus.share.midi.TMidiDevice

org.tritonus.share.midi.TSequencer

org.tritonus.midi.device.alsa.AlsaSequencer

All Implemented Interfaces:

MidiDevice, Sequencer

public class AlsaSequencer
extends TSequencer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	AlsaSequencer.AlsaSequencerReceiver
class	AlsaSequencer.AlsaSequencerTransmitter
class	AlsaSequencer.LoaderThread Pre-loading events to the sequencer queue.
class	AlsaSequencer.MasterSynchronizer
class	AlsaSequencer.PlaybackAlsaMidiInListener
class	AlsaSequencer.RecordingAlsaMidiInListener

Nested classes/interfaces inherited from class org.tritonus.share.midi.TMidiDevice

TMidiDevice.Info, TMidiDevice.TReceiver, TMidiDevice.TTransmitter

Nested classes/interfaces inherited from interface javax.sound.midi.Sequencer

Sequencer.SyncMode

Nested classes/interfaces inherited from interface javax.sound.midi.MidiDevice

MidiDevice.Info

Field Summary

Fields inherited from interface javax.sound.midi.Sequencer

LOOP_CONTINUOUSLY

Constructor Summary

Constructors

Constructor and Description
AlsaSequencer(MidiDevice.Info info)

Method Summary

Methods

Modifier and Type	Method and Description
long	getMicrosecondPosition() Returns the device time in microseconds.
Receiver	getReceiver() Creates a new Receiver object associated with this instance.
long	getTickPosition()
Transmitter	getTransmitter() Creates a new Transmitter object associated with this instance.
boolean	isRecording()
boolean	isRunning()
void	recordDisable(Track track)
void	recordEnable(Track track, int nChannel)
void	sendMessageTick(MidiMessage message, long lTick) Put a message into the queue.
void	setMicrosecondPosition(long lMicroseconds)
void	setTickPosition(long lTick)
void	startRecording()
void	stopRecording()

Methods inherited from class org.tritonus.share.midi.TSequencer

addControllerEventListener, addMetaEventListener, getLatency, getLoopCount, getLoopEndPoint, getLoopStartPoint, getMasterSyncMode, getMasterSyncModes, getMicrosecondLength, getSequence, getSlaveSyncMode, getSlaveSyncModes, getTempoFactor, getTempoInBPM, getTempoInMPQ, getTickLength, getTrackMute, getTrackSolo, removeControllerEventListener, removeMetaEventListener, setLatency, setLoopCount, setLoopEndPoint, setLoopStartPoint, setMasterSyncMode, setSequence, setSequence, setSlaveSyncMode, setTempoFactor, setTempoInBPM, setTempoInMPQ, setTrackMute, setTrackSolo, start, stop

Methods inherited from class org.tritonus.share.midi.TMidiDevice

close, getDeviceInfo, getMaxReceivers, getMaxTransmitters, getReceivers, getTransmitters, isOpen, open

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.sound.midi.MidiDevice

close, getDeviceInfo, getMaxReceivers, getMaxTransmitters, getReceivers, getTransmitters, isOpen, open

Constructor Detail

AlsaSequencer

public AlsaSequencer(MidiDevice.Info info)

Method Detail

isRunning

public boolean isRunning()

Specified by:

isRunning in interface Sequencer

Overrides:

isRunning in class TSequencer

startRecording

public void startRecording()

stopRecording

public void stopRecording()

isRecording

public boolean isRecording()

recordEnable

public void recordEnable(Track track,
                int nChannel)

recordDisable

public void recordDisable(Track track)

getTickPosition

public long getTickPosition()

setTickPosition

public void setTickPosition(long lTick)

getMicrosecondPosition

public long getMicrosecondPosition()

Description copied from class: TMidiDevice

Returns the device time in microseconds. This is a default implementation, telling the application program that the device doesn't track time. If a device wants to give timing information, it has to override this method.

Specified by:

getMicrosecondPosition in interface MidiDevice

Specified by:

getMicrosecondPosition in interface Sequencer

Overrides:

getMicrosecondPosition in class TMidiDevice

setMicrosecondPosition

public void setMicrosecondPosition(long lMicroseconds)

sendMessageTick

public void sendMessageTick(MidiMessage message,
                   long lTick)

Put a message into the queue. This is Claus-Dieter's special method: it puts the message to the ALSA queue for delivery at the specified time. The time has to be given in ticks according to the resolution of the currently active Sequence. For this method to work, the Sequencer has to be started. The message is delivered the same way as messages from a Sequence, i.e. to all registered Transmitters. If the current queue position (as returned by getTickPosition()) is already behind the desired schedule time, the message is ignored.

Parameters:

message - the MidiMessage to put into the queue.

lTick - the desired schedule time in ticks.

getReceiver

public Receiver getReceiver()
                     throws MidiUnavailableException

Description copied from class: TMidiDevice

Creates a new Receiver object associated with this instance. In this implementation, an unlimited number of Receivers per MidiDevice can be created.

Specified by:

getReceiver in interface MidiDevice

Overrides:

getReceiver in class TMidiDevice

Throws:

MidiUnavailableException

getTransmitter

public Transmitter getTransmitter()
                           throws MidiUnavailableException

Description copied from class: TMidiDevice

Creates a new Transmitter object associated with this instance. In this implementation, an unlimited number of Transmitters per MidiDevice can be created.

Specified by:

getTransmitter in interface MidiDevice

Overrides:

getTransmitter in class TMidiDevice

Throws:

MidiUnavailableException