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Add global commands to config map of smnp.audio.midi module

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Bartłomiej Przemysław Pluta
2020-04-17 20:35:35 +02:00
parent 85a178e802
commit 3b8177de5a
3 changed files with 19 additions and 9 deletions
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2
modules/midi/src/main/kotlin/io/smnp/ext/midi/function/MidiFunction.kt
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@@ -22,6 +22,8 @@ class MidiFunction : Function("midi") {
.optional("ppq", ofType(INT))
.optional("output", ofType(STRING))
.optional("play", ofType(BOOL))
.optional("velocity", ofType(FLOAT), Value.float(1.0F))
.optional("instrument", ofType(INT), Value.int(0))
override fun define(new: FunctionDefinitionTool) {
new function vararg(

22
modules/midi/src/main/kotlin/io/smnp/ext/midi/lib/compiler/SequenceCompiler.kt
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@@ -3,6 +3,7 @@ package io.smnp.ext.midi.lib.compiler
import io.smnp.data.entity.Note
import io.smnp.error.CustomException
import io.smnp.error.ShouldNeverReachThisLineException
import io.smnp.util.config.ConfigMap
import javax.sound.midi.MidiEvent
import javax.sound.midi.Sequence
import javax.sound.midi.ShortMessage
@@ -24,11 +25,14 @@ abstract class SequenceCompiler {
const val ZERO = 0x00
}
fun compileLines(lines: List<List<Any>>, sequence: Sequence) =
lines.forEachIndexed { channel, line -> compileLine(line, channel, sequence) }
fun compileChannels(channels: Map<Int, List<List<Any>>>, config: ConfigMap, sequence: Sequence) {
channels.forEach { (channel, lines) ->
lines.forEach { line -> compileLine(line, channel - 1, config, sequence) }
}
}
fun compileChannels(channels: Map<Int, List<List<Any>>>, sequence: Sequence) = channels.forEach { (channel, lines) ->
lines.forEach { line -> compileLine(line, channel - 1, sequence) }
fun compileLines(lines: List<List<Any>>, config: ConfigMap, sequence: Sequence) {
lines.forEachIndexed { channel, line -> compileLine(line, channel, config, sequence) }
}
protected abstract fun compileNote(
@@ -42,10 +46,12 @@ abstract class SequenceCompiler {
abstract fun compileRest(noteOnTick: Long, item: Int, ppq: Int): Long
private fun compileLine(line: List<Any>, channel: Int, sequence: Sequence) {
private fun compileLine(line: List<Any>, channel: Int, config: ConfigMap, sequence: Sequence) {
val track = sequence.createTrack()
var velocity = 127
track.add(event(Command.PROGRAM_CHANGE + channel, channel, config["instrument"].value as Int, 0, 0))
var velocity = velocityToInt(config["velocity"].value as Float)
val lastTick = line.fold(0L) { noteOnTick, item ->
when (item) {
is Note -> compileNote(item, velocity, channel, noteOnTick, track, sequence.resolution)
@@ -59,7 +65,7 @@ abstract class SequenceCompiler {
command["velocity"]?.let {
val value = it as? Float ?: throw CustomException("Invalid parameter type: 'velocity' is supposed to be of float type")
velocity = (127.0 * value.coerceIn(0.0F, 1.0F)).toInt()
velocity = velocityToInt(value)
}
noteOnTick
@@ -71,6 +77,8 @@ abstract class SequenceCompiler {
track.add(allNotesOff(channel, lastTick))
}
private fun velocityToInt(value: Float) = (127.0 * value.coerceIn(0.0F, 1.0F)).toInt()
protected fun noteOn(note: Note, velocity: Int, channel: Int, tick: Long): MidiEvent {
return event(Command.NOTE_ON, channel, note.intPitch() + 12, velocity, tick)
}

4
modules/midi/src/main/kotlin/io/smnp/ext/midi/lib/midi/Midi.kt
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@@ -43,7 +43,7 @@ object Midi {
val sequence = Sequence(Sequence.PPQ, config.getUnwrappedOrDefault("ppq",
DEFAULT_PPQ
))
provideCompiler(config).compileLines(lines, sequence)
provideCompiler(config).compileLines(lines, config, sequence)
play(sequence)
writeToFile(sequence)
}
@@ -70,7 +70,7 @@ object Midi {
val sequence = Sequence(Sequence.PPQ, config.getUnwrappedOrDefault("ppq",
DEFAULT_PPQ
))
provideCompiler(config).compileChannels(channels, sequence)
provideCompiler(config).compileChannels(channels, config, sequence)
play(sequence)
writeToFile(sequence)
}