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audio: getFreePlayhead()

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minjaesong
2026-06-07 02:21:21 +09:00
parent 3444bdf63b
commit aa45c2194f
11 changed files with 124 additions and 81 deletions
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11
tsvm_core/src/net/torvald/tsvm/AudioJSR223Delegate.kt
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@@ -67,6 +67,17 @@ class AudioJSR223Delegate(private val vm: VM) {
fun stop(playhead: Int) { getPlayhead(playhead)?.isPlaying = false }
fun isPlaying(playhead: Int) = getPlayhead(playhead)?.isPlaying
/** Lowest-numbered playhead that is not currently playing, so a player app can
* "occupy" an idle playhead instead of always clobbering playhead 0. Returns
* [fallback] when every playhead is busy (or no audio device is present). */
fun getFreePlayhead(fallback: Int): Int {
val playheads = getFirstSnd()?.playheads ?: return fallback
for (i in playheads.indices) {
if (!playheads[i].isPlaying) return i
}
return fallback
}
// fun setPosition(playhead: Int, pos: Int) { getPlayhead(playhead)?.position = pos and 65535 }
fun getPosition(playhead: Int) = getPlayhead(playhead)?.position