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mixer: room for dynamic sources

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minjaesong
2023-12-02 13:51:48 +09:00
parent 8b95c0aa0e
commit 9a3ab64383
6 changed files with 70 additions and 41 deletions
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23
src/net/torvald/terrarum/audio/TerrarumAudioMixerTrack.kt
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@@ -15,13 +15,17 @@ import kotlin.math.pow
typealias TrackVolume = Double
class TerrarumAudioMixerTrack(val name: String, val isMaster: Boolean = false, val isBus: Boolean = false, private val maxVolumeFun: () -> Double): Disposable {
enum class TrackType {
STATIC_SOURCE, DYNAMIC_SOURCE, BUS, MASTER
}
class TerrarumAudioMixerTrack(val name: String, val trackType: TrackType, private val maxVolumeFun: () -> Double = {1.0}): Disposable {
companion object {
const val SAMPLING_RATE = 48000
const val SAMPLING_RATEF = 48000f
const val SAMPLING_RATED = 48000.0
val BUFFER_SIZE = 4 * App.getConfigInt("audiobuffersize") // n ms -> 384 * n
val BUFFER_SIZE = 4 * App.getConfigInt("audio_buffer_size") // n ms -> 384 * n
}
val hash = getHashStr()
@@ -52,10 +56,10 @@ class TerrarumAudioMixerTrack(val name: String, val isMaster: Boolean = false, v
inline fun <reified T> getFilter() = filters.filterIsInstance<T>().first()!!
internal val sidechainInputs = Array<Pair<TerrarumAudioMixerTrack, TrackVolume>?>(16) { null }
internal val sidechainInputs = ArrayList<Pair<TerrarumAudioMixerTrack, TrackVolume>?>()
internal fun getSidechains(): List<TerrarumAudioMixerTrack?> = sidechainInputs.map { it?.first }
fun addSidechainInput(input: TerrarumAudioMixerTrack, inputVolume: TrackVolume) {
if (input.isMaster)
if (input.trackType == TrackType.MASTER)
throw IllegalArgumentException("Cannot add master track as a sidechain")
if (sidechainInputs.map { it?.first }.any { it?.hash == input.hash })
@@ -67,13 +71,8 @@ class TerrarumAudioMixerTrack(val name: String, val isMaster: Boolean = false, v
})
throw IllegalArgumentException("The track '${input.hash}' contains current track (${this.hash}) as its sidechain")
val emptySpot = sidechainInputs.indexOf(null)
if (emptySpot != -1) {
sidechainInputs[emptySpot] = (input to inputVolume)
}
else {
throw IllegalStateException("Sidechain is full (${sidechainInputs.size})!")
}
sidechainInputs.add(input to inputVolume)
}
@@ -87,7 +86,7 @@ class TerrarumAudioMixerTrack(val name: String, val isMaster: Boolean = false, v
it.get(Gdx.audio) as Int
}
internal val adev: OpenALBufferedAudioDevice? =
if (isMaster) {
if (trackType == TrackType.MASTER) {
OpenALBufferedAudioDevice(
Gdx.audio as OpenALLwjgl3Audio,
SAMPLING_RATE,