mirror of
https://github.com/badvision/lawless-legends.git
synced 2025-02-27 20:30:11 +00:00
Improved song conversion and playback.
This commit is contained in:
Martin Haye
parent
c819c30b34
commit
faa5270a0c
@ -33,14 +33,15 @@ for msg in mid:
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onote = int(msg.note % 12)
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lrchan = int(msg.channel & 1)
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vol = int(msg.velocity >> 3)
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print('type=%s onote=%d lrchan=%d vol=%d' % (msg.type, onote, lrchan, vol))
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print('time=%.4f type=%s octave=%d onote=%d lrchan=%d vol=%d' % (msg.time, msg.type, octave, onote, lrchan, vol))
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if msg.velocity > 0 and vol == 0:
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vol = 1
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if msg.type == 'note_off':
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vol = 0
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if octave < 0:
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octave = 0
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totaltime += deltatime
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totaltime += eventtime
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print('totaltime=%.4f scaled=%.4f' % (totaltime, totaltime*16/16.24))
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if msg.channel == 9 or msg.channel == extperchan:
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#
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# Percussion
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@ -23,6 +23,7 @@ import java.util.Calendar
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import java.util.zip.GZIPInputStream
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import java.util.LinkedHashMap
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import java.security.MessageDigest
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import javax.sound.midi.MetaMessage;
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import javax.sound.midi.MidiEvent;
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import javax.sound.midi.MidiMessage;
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import javax.sound.midi.MidiSystem;
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@ -1188,67 +1189,37 @@ class A2PackPartitions
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final int NOTE_OFF = 0x80;
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Sequence sequence = MidiSystem.getSequence(midiFile)
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//System.out.format("Sequence: div=%.2f PPQ=%.2f res=%d\n", sequence.divisionType,
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// sequence.PPQ, sequence.resolution)
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def outBuf = ByteBuffer.allocate(50000)
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int extperchan = 9 // this basically means no extra percussion channel, since perc is 9 anyway
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int trackNumber = 0
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def notesByTime = [:]
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for (Track track : sequence.getTracks()) {
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trackNumber++
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//System.out.println("Track " + trackNumber + ": size = " + track.size())
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int totaltime = 0
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for (int i=0; i < track.size(); i++) {
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MidiEvent event = track.get(i)
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//System.out.print("@" + event.getTick() + " ")
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MidiMessage message = event.getMessage()
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if (message instanceof ShortMessage) {
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ShortMessage sm = (ShortMessage) message
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//System.out.print("Channel: " + sm.getChannel() + " ")
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if (sm.getCommand() == NOTE_ON || sm.getCommand() == NOTE_OFF) {
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int time = event.getTick() * 16 / 200
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int deltatime = time - totaltime
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int key = sm.getData1()
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int octave = (key / 12)-1
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int onote = key % 12
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int lrchan = sm.getChannel() & 1
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int velocity = sm.getData2()
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int vol = velocity >> 3
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totaltime = time
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//System.out.println(((sm.getCommand() == NOTE_ON) ? "on" : "off") +
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// "onote/oct=" + onote + "/" + octave +
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// " channel=" + sm.getChannel() + " lrchan=" + lrchan +
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// " key=" + key + " velocity=" + velocity + " vol=" + vol)
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if (velocity > 0 && vol == 0)
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vol = 1
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if (sm.getCommand() == NOTE_OFF)
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vol = 0
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if (octave < 0)
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octave = 0
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if (sm.getChannel() == 9 || sm.getChannel() == extperchan)
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{
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// Percussion
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if (vol > 0) {
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outBuf.put((byte)deltatime)
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outBuf.put((byte)(note ^ 0x40))
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outBuf.put((byte)((lrchan << 7) | vol))
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outBuf.put((byte)(msg.channel + 1))
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outBuf.put((byte)vol)
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if (extperchan == 9) { // Play percussion on both channels if no extended percussion
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outBuf.put((byte)0)
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outBuf.put((byte)(note ^ 0x40))
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outBuf.put((byte)vol) // omits channel
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}
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}
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}
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else {
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// Note
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outBuf.put((byte)deltatime)
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outBuf.put((byte)(0x80 | (octave << 4) | onote))
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outBuf.put((byte)((lrchan << 7) | vol))
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}
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} else {
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//System.out.println("Command:" + sm.getCommand())
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int tickTrack = (event.tick << 8) | (trackNumber)
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if (!notesByTime.containsKey(tickTrack))
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notesByTime[tickTrack] = []
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notesByTime[tickTrack] << message
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} else if (message instanceof MetaMessage) {
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if (message.getType() == 0x51) {
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int usecPerBeat = ((message.getData()[0] & 0xFF) << 16) |
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((message.getData()[1] & 0xFF) << 8) |
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(message.getData()[2] & 0xFF)
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//System.out.println("Tempo message: " + usecPerBeat)
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}
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else if (message.getType() == 127) {
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//System.out.println("Meta message: type=127 data=...")
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}
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else {
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//System.out.println("Meta message: type=" + message.getType() + " data=" + message.getData())
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}
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} else {
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//System.out.println("Other message: " + message.getClass())
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@ -1256,6 +1227,64 @@ class A2PackPartitions
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}
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}
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int totaltime = 0
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notesByTime.keySet().sort().each { int tickTrack ->
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int tick = tickTrack >> 8
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trackNumber = tickTrack & 0xFF
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notesByTime[tickTrack].each { ShortMessage sm ->
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//System.out.print("tick=" + tick + " track=" + trackNumber + " channel=" + sm.getChannel() + " ")
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if (sm.getCommand() == NOTE_ON || sm.getCommand() == NOTE_OFF) {
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int time = tick * 120.0 / sequence.resolution * 16 / 203
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int deltatime = time - totaltime
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int key = sm.getData1()
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int octave = (key / 12)-1
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int onote = key % 12
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int lrchan = sm.getChannel() & 1
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int velocity = sm.getData2()
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int vol = velocity >> 3
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totaltime = time
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//System.out.println(((sm.getCommand() == NOTE_ON) ? "on" : "off") +
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// " time=" + time +
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// " onote/oct=" + onote + "/" + octave +
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// " channel=" + sm.getChannel() + " lrchan=" + lrchan +
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// " key=" + key + " velocity=" + velocity + " vol=" + vol)
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if (velocity > 0 && vol == 0)
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vol = 1
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if (sm.getCommand() == NOTE_OFF)
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vol = 0
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if (octave < 0)
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octave = 0
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if (vol > 0)
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vol = (vol >> 2) + 12
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if (sm.getChannel() == 9 || sm.getChannel() == extperchan)
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{
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// Percussion
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if (vol > 0) {
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outBuf.put((byte)deltatime)
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outBuf.put((byte)(note ^ 0x40))
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outBuf.put((byte)((lrchan << 7) | vol))
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outBuf.put((byte)(msg.channel + 1))
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outBuf.put((byte)vol)
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if (extperchan == 9) { // Play percussion on both channels if no extended percussion
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outBuf.put((byte)0)
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outBuf.put((byte)(note ^ 0x40))
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outBuf.put((byte)vol) // omits channel
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}
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}
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}
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else {
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// Note
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outBuf.put((byte)deltatime)
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outBuf.put((byte)(0x80 | (octave << 4) | onote))
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outBuf.put((byte)((lrchan << 7) | vol))
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}
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} else {
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//System.out.println("Command:" + sm.getCommand())
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}
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}
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}
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// Compress and store the resulting buffer
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def num = songs.size() + 1
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songs[midiFile.name] = [num:num, buf:compress(unwrapByteBuffer(outBuf))]
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addResourceDep("map", "<root>", "song", midiFile.name)
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@ -2472,7 +2501,7 @@ class A2PackPartitions
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packGlobalTileSet(dataIn)
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// Play around with music
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def midiFile = new File(xmlFile.getParentFile(), "song.mid")
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def midiFile = new File(xmlFile.getAbsoluteFile().getParentFile(), "song.mid")
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if (midiFile.exists())
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packSong(midiFile)
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@ -16,7 +16,7 @@ const rndseed = $004E
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const LSB = 0
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const MSB = 1
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const MB_ARPEGGIO = 4 // In 16ths of a second
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const MAX_MBCH_NOTES = 9
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const MAX_MBCH_NOTES = 3
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const SPKR_ARPEGGIO = 2 // In 16ths of a second
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const DUR16TH = 8
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const MAX_SPKR_NOTES = 4
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@ -95,6 +95,7 @@ word seqTrack, seqEvent, seqTime, eventTime, updateTime
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byte numNotes, seqRepeat
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byte indexA[2], indexB[2], indexC[2]
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byte noteA[2], noteB[2], noteC[2]
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byte volA[2], volB[2], volC[2]
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word notes1[MAX_MBCH_NOTES], notes2[MAX_MBCH_NOTES]
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word notes[2] = @notes1, @notes2
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word periods1[MAX_MBCH_NOTES], periods2[MAX_MBCH_NOTES]
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@ -513,6 +514,9 @@ def mbSequence(yield, func)#0
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noteA[0] = 0; noteA[1] = 0
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noteB[0] = 0; noteB[1] = 0
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noteC[0] = 0; noteC[1] = 0
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volA[0] = 0; volA[1] = 0
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volB[0] = 0; volB[1] = 0
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volC[0] = 0; volC[1] = 0
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//
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// Get the PSGs ready
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//
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@ -639,6 +643,7 @@ def mbSequence(yield, func)#0
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if n.LSB <> noteA[channel]
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psgWriteTone(mbVIAs[channel], AFREQ, periods[channel, i], n.MSB)
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noteA[channel] = n.LSB
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volA[channel] = n.MSB | $80
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indexA[channel] = i
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fin
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//
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@ -655,6 +660,7 @@ def mbSequence(yield, func)#0
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if n.LSB <> noteB[channel]
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psgWriteTone(mbVIAs[channel], BFREQ, periods[channel, i], n.MSB)
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noteB[channel] = n.LSB
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volB[channel] = n.MSB | $80
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indexB[channel] = i
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fin
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//
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@ -672,6 +678,7 @@ def mbSequence(yield, func)#0
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psgWrite(mbVIAs[channel], MIXER, $38) // Tone on C, B, A
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psgWriteTone(mbVIAs[channel], CFREQ, periods[channel, i], n.MSB)
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noteC[channel] = n.LSB
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volC[channel] = n.MSB | $80
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indexC[channel] = i
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fin
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next
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@ -681,9 +688,45 @@ def mbSequence(yield, func)#0
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// Increment time tick
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//
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seqTime++
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while !(mbVIA1->IFR & $40) // Wait for T1 interrupt
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period = 0
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repeat
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if a2keypressed(); quit = TRUE; break; fin
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loop
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period++
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if (period & 63) == 1
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for channel = 0 to 1
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if volA[channel] & $80
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volA[channel] = volA[channel] & $7F
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elsif volA[channel]
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volA[channel]--
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psgWrite(mbVIAs[channel], AENVAMP, volA[channel])
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if volA[channel] == 0
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noteA[channel] = 0
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numNotes--
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fin
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fin
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if volB[channel] & $80
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volB[channel] = volB[channel] & $7F
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elsif volB[channel]
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volB[channel]--
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psgWrite(mbVIAs[channel], BENVAMP, volB[channel])
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if volB[channel] == 0
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noteB[channel] = 0
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numNotes--
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fin
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fin
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if volC[channel] & $80
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volC[channel] = volC[channel] & $7F
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elsif volC[channel]
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volC[channel]--
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psgWrite(mbVIAs[channel], CENVAMP, volC[channel])
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if volC[channel] == 0
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noteC[channel] = 0
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numNotes--
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fin
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fin
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next
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fin
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until mbVIA1->IFR & $40 // Wait for T1 interrupt
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mbVIA1->IFR = $40 // Clear interrupt
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if yieldTime <= seqTime; func()#0; yieldTime = seqTime + yield; fin
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until quit
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