108 lines
3.7 KiB
Java
108 lines
3.7 KiB
Java
import java.util.HashMap;
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import java.util.Map;
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import javax.sound.midi.MidiDevice;
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import javax.sound.midi.MidiMessage;
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import javax.sound.midi.MidiSystem;
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import javax.sound.midi.MidiUnavailableException;
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import javax.sound.midi.Receiver;
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import javax.sound.midi.Transmitter;
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public class MidiSimple {
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public MidiSimple( String theDeviceName , Receiver theReceiver ) {
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MidiDevice.Info[] aInfos = MidiSystem.getMidiDeviceInfo();
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for ( int i = 0; i < aInfos.length; i++ ) {
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try {
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MidiDevice device = MidiSystem.getMidiDevice( aInfos[ i ] );
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boolean bAllowsInput = ( device.getMaxTransmitters() != 0 );
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boolean bAllowsOutput = ( device.getMaxReceivers() != 0 );
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System.out.println( "" + i + " " + ( bAllowsInput ? "IN " : " " ) + ( bAllowsOutput ? "OUT " : " " ) + aInfos[ i ].getName() + ", " + aInfos[ i ].getVendor() + ", "
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+ aInfos[ i ].getVersion() + ", " + aInfos[ i ].getDescription() );
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}
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catch ( MidiUnavailableException e ) {
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// device is obviously not available...
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// out(e);
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}
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}
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try {
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MidiDevice device;
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device = MidiSystem.getMidiDevice( getMidiDeviceInfo( theDeviceName, false ) );
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device.open();
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Transmitter conTrans = device.getTransmitter();
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conTrans.setReceiver( theReceiver );
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}
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catch ( MidiUnavailableException e ) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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} catch (NullPointerException e) {
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System.out.println("No Midi device ( "+theDeviceName+" ) is available.");
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}
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}
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public MidiSimple( String theDeviceName ) {
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new MidiSimple(theDeviceName , new MidiInputReceiver( theDeviceName ) );
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}
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public MidiDevice.Info getMidiDeviceInfo( String strDeviceName, boolean bForOutput ) {
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MidiDevice.Info[] aInfos = MidiSystem.getMidiDeviceInfo();
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for ( int i = 0; i < aInfos.length; i++ ) {
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if ( aInfos[ i ].getName().equals( strDeviceName ) ) {
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try {
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MidiDevice device = MidiSystem.getMidiDevice( aInfos[ i ] );
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boolean bAllowsInput = ( device.getMaxTransmitters() != 0 );
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boolean bAllowsOutput = ( device.getMaxReceivers() != 0 );
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if ( ( bAllowsOutput && bForOutput ) || ( bAllowsInput && !bForOutput ) ) {
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return aInfos[ i ];
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}
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}
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catch ( MidiUnavailableException e ) {
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// TODO:
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}
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}
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}
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return null;
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}
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class MidiInputReceiver implements Receiver {
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public String name;
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Map< Byte, String > commandMap = new HashMap< Byte, String >();
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public MidiInputReceiver( String name ) {
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this.name = name;
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commandMap.put( ( byte ) -112, "Note On" );
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commandMap.put( ( byte ) -128, "Note Off" );
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commandMap.put( ( byte ) -48, "Channel Pressure" );
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commandMap.put( ( byte ) -80, "Continuous Controller" );
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}
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public void send( MidiMessage msg, long timeStamp ) {
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System.out.println( "midi received (" + name + ")" );
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System.out.println( "Timestamp: " + timeStamp );
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byte[] b = msg.getMessage();
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if ( b[ 0 ] != -48 ) {
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// System.out.println("Message length: " + msg.getLength());
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System.out.println( "Note command: " + commandMap.get( b[ 0 ] ) );
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System.out.println( "Which note: " + b[ 1 ] );
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System.out.println( "Note pressure: " + b[ 2 ] );
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System.out.println( "---------------------" );
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}
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else {
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// System.out.println("Message length: " + msg.getLength());
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System.out.println( "Note command: " + commandMap.get( b[ 0 ] ) );
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System.out.println( "Note Pressure: " + b[ 1 ] );
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System.out.println( "---------------------" );
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}
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}
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public void close( ) {
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}
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}
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}
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