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Midi Note Message Source

package cas.cs4tb3.mellowd.midi;

import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.ShortMessage;
import java.util.Collection;

This is a simple interface used to bind various pitch sources, mainly Pitch and Chord. As long as a note source is able to generate note on and off messages it can be used by the compiler to generate music.

public interface MidiNoteMessageSource {

    /**
     * Generate as many {@link ShortMessage#NOTE_ON note on} messages as required
     * to turn all notes in this source on.
     * @param channel the midi channel that the notes are to be played on
     * @param velocity the velocity that the notes should be played with
     * @return a Collection of the note on messages
     * @throws InvalidMidiDataException if the channel or velocity are not accepted by the
     * midi protocol.
     */
    Collection<ShortMessage> noteOn(int channel, int velocity) throws InvalidMidiDataException;

    /**
     * Generate as many {@link ShortMessage#NOTE_OFF note off} messages as required
     * to turn all notes in this source off.
     * @param channel the midi channel that the notes are already played on
     * @param velocity the velocity that the notes should be turn off with
     * @return a Collection of the note off messages
     * @throws InvalidMidiDataException if the channel or velocity are not accepted by the
     * midi protocol.
     */
    Collection<ShortMessage> noteOff(int channel, int velocity) throws InvalidMidiDataException;

Pitch evaluation needs to be delayed until an octave is know and the note source must support shifting to the desired octave.

    MidiNoteMessageSource shiftOctave(int octave);
}

Table of Contents

src\main\antlr

src\main\java\cas\cs4tb3\mellowd

src\main\java\cas\cs4tb3\mellowd\compiler

src\main\java\cas\cs4tb3\mellowd\midi

src\main\java\cas\cs4tb3\mellowd\parser

src\main\java\cas\cs4tb3\mellowd\primitives

src\test\java\cas\cs4tb3\mellowd

src\test\resources\compilertest

src\test\resources\errortest

src\test\resources\parsertest

src\test\resources\testdata

Midi Note Message Source