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vol/pan ind wip

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minjaesong
2026-05-18 16:00:29 +09:00
parent 1d28c89937
commit 34fba4b2f2
3 changed files with 183 additions and 30 deletions
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24
tsvm_core/src/net/torvald/tsvm/AudioJSR223Delegate.kt
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@@ -110,6 +110,30 @@ class AudioJSR223Delegate(private val vm: VM) {
fun getVoiceFader(playhead: Int, voice: Int): Int =
getPlayhead(playhead)?.trackerState?.voices?.getOrNull(voice.coerceIn(0, 19))?.fader ?: 0
/** Effective per-voice tracker volume (0.0..1.0) — what the mixer applies right now after the
* envelope, fadeout, vol-column / D-slide / tremolo ramp, and the host-owned per-voice fader,
* but BEFORE master/mixing/global volumes. Returns 0.0 for inactive voices. Mirrors the
* perVoiceGain assembled in the per-sample mix loop (AudioAdapter.kt:3201). */
fun getVoiceEffectiveVolume(playhead: Int, voice: Int): Double {
val v = getPlayhead(playhead)?.trackerState?.voices?.getOrNull(voice.coerceIn(0, 19)) ?: return 0.0
if (!v.active) return 0.0
val effEnvVol = if (v.volEnvOn) v.envVolMix else 1.0
val faderGain = (255 - v.fader) / 255.0
return (effEnvVol * v.fadeoutVolume * v.currentMixVolume * faderGain).coerceIn(0.0, 1.0)
}
/** Effective per-voice tracker pan (0..255, 128 = centre) — channelPan modulated by the pan
* envelope when it is active. Returns 128 (centre) for inactive voices. Mirrors the pan
* selection in the per-sample mix loop (AudioAdapter.kt:3205). */
fun getVoiceEffectivePan(playhead: Int, voice: Int): Int {
val v = getPlayhead(playhead)?.trackerState?.voices?.getOrNull(voice.coerceIn(0, 19)) ?: return 128
if (!v.active) return 128
return if (v.hasPanEnv && v.panEnvOn) {
val envPanRaw = (v.envPan * 255.0).toInt().coerceIn(0, 255)
(v.channelPan + envPanRaw - 128).coerceIn(0, 255)
} else v.channelPan.coerceIn(0, 255)
}
/** Set the starting row for the next play call, resetting per-row timing and silencing active voices. */
fun setTrackerRow(playhead: Int, row: Int) {
getPlayhead(playhead)?.trackerState?.let { ts ->