Examples with TimeSignature com.xenoage.zong.core.music.time.TimeSignature used on opensource projects

Example 6 with TimeSignature

use of com.xenoage.zong.core.music.time.TimeSignature in project Zong by Xenoage.

the class MidiConverter method writeMetronomeTrack.

/**
 * Writes the metronome beats into the metronome track.
 */
private void writeMetronomeTrack(int track) {
    int strongBeatNote = options.midiSettings.metronomeStrongBeatNote;
    int weakBeatNote = options.midiSettings.metronomeWeakBeatNote;
    for (int iRep : range(repetitions)) {
        val rep = repetitions.get(iRep);
        for (int iMeasure : range(rep.start.getMeasure(), rep.end.getMeasure())) {
            TimeSignature timeSig = score.getHeader().getTimeAtOrBefore(iMeasure);
            Fraction startBeat = (rep.start.getMeasure() == iMeasure ? rep.start.getBeat() : Companion.get_0());
            Fraction endBeat = (rep.end.getMeasure() == iMeasure ? rep.end.getBeat() : score.getMeasureBeats(iMeasure));
            if (timeSig != null) {
                boolean[] accentuation = timeSig.getType().getBeatsAccentuation();
                int timeDenominator = timeSig.getType().getDenominator();
                long measureStartTick = timeMap.getByRepTime(iRep, Companion.time(iMeasure, Companion.get_0())).tick;
                for (int beatNumerator : range(timeSig.getType().getNumerator())) {
                    // compute start and stop tick
                    val beat = Companion.fr(beatNumerator, timeDenominator);
                    val time = Companion.time(iMeasure, beat);
                    if (false == rep.contains(time))
                        continue;
                    long tickStart = measureStartTick + durationToTick(Companion.fr(beatNumerator, timeDenominator), resolution);
                    long tickStop = tickStart + durationToTick(Companion.fr(1, timeDenominator), resolution);
                    // write metronome note
                    int note = (accentuation[beatNumerator] ? strongBeatNote : weakBeatNote);
                    int velocity = midiMaxValue;
                    writer.writeNote(track, channel10, tickStart, note, true, velocity);
                    writer.writeNote(track, channel10, tickStop, note, false, 0);
                }
            }
        }
    }
}

Example 7 with TimeSignature

use of com.xenoage.zong.core.music.time.TimeSignature in project Zong by Xenoage.

the class TimeMapperTest method getScore.

/**
 * Creates the following score (each space is a quarter note)
 *
 * measures:
 * repetitions: voltas/signs:            1───┐2───┐   d.c. senza rep
 *              barlines:     |    |:   |   :|    |1   ||
 * part 0: staff 0: voice 0:  |1   |1   |2 2 |1   |1   ||
 *                  voice 1:  |    |442 |42 4|1 d |1   ||   //d = direction
 *         staff 1: voice 0:  |2 44|1   |    |1   |1   ||
 * part 1: staff 2: voice 0:  |1   |1   |2 2 |    |2 2 ||
 *
 * play ranges:               0---------------
 *                                 1----     2---------
 *                            3---------     4---------
 */
private Score getScore() {
    val score = new Score();
    new PartAdd(score, new Part("p0", null, 2, null), 0, null).execute();
    new PartAdd(score, new Part("p1", null, 1, null), 1, null).execute();
    new MeasureAdd(score, 5).execute();
    // time, barlines, voltas and signs
    score.getColumnHeader(0).setTime(new TimeSignature(TimeType.Companion.getTime_4_4()));
    score.getColumnHeader(1).setStartBarline(Companion.barlineForwardRepeat(Regular));
    score.getColumnHeader(2).setVolta(new Volta(1, range(1, 1), "1", true));
    score.getColumnHeader(2).setEndBarline(Companion.barlineBackwardRepeat(Regular, 1));
    score.getColumnHeader(3).setVolta(new Volta(1, range(2, 2), "2", true));
    score.getColumnHeader(4).setNavigationOrigin(new DaCapo(false));
    // staff 0, voice 0
    val cursor = new Cursor(score, mp0, true);
    cursor.write(e(1));
    cursor.write(e(1));
    cursor.write(e(2));
    cursor.write(e(2));
    cursor.write(e(1));
    cursor.write(e(1));
    // staff 0, voice 1
    cursor.setMp(atElement(0, 1, 1, 0));
    cursor.write(e(4));
    cursor.write(e(4));
    cursor.write(e(2));
    cursor.write(e(4));
    cursor.write(e(2));
    cursor.write(e(4));
    cursor.write(e(1));
    cursor.write(e(1));
    new MeasureElementWrite(new Dynamic(DynamicValue.f), score.getMeasure(atMeasure(0, 3)), Companion.get_1$2()).execute();
    // staff 1, voice 0
    cursor.setMp(atElement(1, 0, 0, 0));
    cursor.write(e(2));
    cursor.write(e(4));
    cursor.write(e(4));
    cursor.write(e(1));
    cursor.setMp(atElement(1, 2, 0, 0));
    cursor.write(e(1));
    cursor.write(e(1));
    // staff 2, voice 0
    cursor.setMp(atElement(2, 0, 0, 0));
    cursor.write(e(1));
    cursor.write(e(1));
    cursor.write(e(2));
    cursor.write(e(2));
    cursor.setMp(atElement(2, 4, 0, 0));
    cursor.write(e(2));
    cursor.write(e(2));
    return score;
}

Example 8 with TimeSignature

use of com.xenoage.zong.core.music.time.TimeSignature in project Zong by Xenoage.

the class VoiceElementWriteTest method testTimeAware.

/**
 * Obey the time signature. Fail is written element is too long.
 */
@Test
public void testTimeAware() {
    Score score = ScoreFactory.create1Staff4Measures();
    score.getHeader().getColumnHeaders().get(1).setTime(new TimeSignature(TimeType.Companion.getTime_3_4()));
    // create options
    VoiceElementWrite.Options options = new VoiceElementWrite.Options();
    options.checkTimeSignature = true;
    // measure 0: senza misura: write 100 1/4 chords
    Voice voice = score.getVoice(MP.atVoice(0, 0, 0));
    for (int i : range(100)) new VoiceElementWrite(voice, atElement(0, 0, 0, i), new Rest(Companion.fr(1, 4)), options).execute();
    // measure 2: must work for 3/4, then fail
    for (int i : range(3)) new VoiceElementWrite(voice, atElement(0, 2, 0, i), new Rest(Companion.fr(1, 4)), options).execute();
    try {
        new VoiceElementWrite(voice, atElement(0, 2, 0, 3), new Rest(Companion.fr(1, 4)), options).execute();
        fail();
    } catch (MeasureFullException ex) {
    }
}

Example 9 with TimeSignature

use of com.xenoage.zong.core.music.time.TimeSignature in project Zong by Xenoage.

the class ScoreTest method getGapBetweenTest.

@Test
public void getGapBetweenTest() {
    Score score = ScoreFactory.create1Staff4Measures();
    VoiceElement[] e = new VoiceElement[6];
    // 4/4 measure
    score.getColumnHeader(0).setTime(new TimeSignature(TimeType.Companion.getTime_4_4()));
    // first measure (filled only with 7/8)
    // voice 0: 1/4, 1/4, 1/4  (1/4 is missing)
    // voice 1: 3/4, 1/8       (1/8 is missing)
    score.getVoice(atVoice(0, 0, 0)).addElement(e[0] = new Rest(Companion.fr(1, 4)));
    score.getVoice(atVoice(0, 0, 0)).addElement(e[1] = new Rest(Companion.fr(1, 4)));
    score.getVoice(atVoice(0, 0, 0)).addElement(e[2] = new Rest(Companion.fr(1, 4)));
    new VoiceAdd(score.getMeasure(atMeasure(0, 0)), 1).execute();
    score.getVoice(atVoice(0, 0, 1)).addElement(new Rest(Companion.fr(3, 4)));
    score.getVoice(atVoice(0, 0, 1)).addElement(new Rest(Companion.fr(1, 8)));
    // second measure: 1/4, 3/4
    score.getVoice(atVoice(0, 1, 0)).addElement(e[3] = new Rest(Companion.fr(1, 4)));
    score.getVoice(atVoice(0, 1, 0)).addElement(e[4] = new Rest(Companion.fr(3, 4)));
    // third measure: 4/4
    score.getVoice(atVoice(0, 1, 0)).addElement(e[5] = new Rest(Companion.fr(4, 4)));
    // test gaps between adjacent elements
    assertEquals(Companion.get_0(), score.getGapBetween(e[0], e[1]));
    assertEquals(Companion.get_0(), score.getGapBetween(e[1], e[2]));
    // 1/8 from second voice
    assertEquals(Companion.fr(1, 8), score.getGapBetween(e[2], e[3]));
    assertEquals(Companion.get_0(), score.getGapBetween(e[3], e[4]));
    assertEquals(Companion.get_0(), score.getGapBetween(e[4], e[5]));
    // test some gaps between non-adjacent elements
    assertEquals(Companion.fr(1, 4), score.getGapBetween(e[0], e[2]));
    // includes 1/8 from second voice
    assertEquals(Companion.fr(3, 8), score.getGapBetween(e[1], e[3]));
    // includes 1/8 from second voice
    assertEquals(Companion.fr(3, 8), score.getGapBetween(e[2], e[4]));
    // includes 1/8 from second voice
    assertEquals(Companion.fr(5, 8).add(Companion.fr(4, 4)), score.getGapBetween(e[0], e[5]));
    // includes 1/8 from second voice
    assertEquals(Companion.fr(3, 8).add(Companion.fr(4, 4)), score.getGapBetween(e[1], e[5]));
    // test in reverse direction
    assertEquals(Companion.fr(-2, 4), score.getGapBetween(e[1], e[0]));
    assertEquals(Companion.fr(-2, 4), score.getGapBetween(e[2], e[1]));
    // includes 1/8 from second voice
    assertEquals(Companion.fr(-5, 8), score.getGapBetween(e[3], e[2]));
    // includes 1/8 from second voice
    assertEquals(Companion.fr(-23, 8), score.getGapBetween(e[5], e[0]));
    // includes 1/8 from second voice
    assertEquals(Companion.fr(-21, 8), score.getGapBetween(e[5], e[1]));
}

Example 10 with TimeSignature

use of com.xenoage.zong.core.music.time.TimeSignature in project Zong by Xenoage.

the class ScoreHeaderTest method getTimeAtOrBeforeTest.

@Test
public void getTimeAtOrBeforeTest() {
    // create a little test score, where there is no time signature
    // in the first measure, but a 3/4 time in the second one
    // and a 4/4 in the fourth one
    Score score = ScoreFactory.create1Staff4Measures();
    ScoreHeader header = score.getHeader();
    TimeSignature time1 = new TimeSignature(TimeType.Companion.getTime_3_4());
    header.getColumnHeader(1).setTime(time1);
    TimeSignature time2 = new TimeSignature(TimeType.Companion.getTime_4_4());
    header.getColumnHeader(3).setTime(time2);
    // test method
    assertEquals(TimeSignature.Companion.getImplicitSenzaMisura(), header.getTimeAtOrBefore(0));
    assertEquals(time1, header.getTimeAtOrBefore(1));
    assertEquals(time1, header.getTimeAtOrBefore(2));
    assertEquals(time2, header.getTimeAtOrBefore(3));
}