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bandpass dsp

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minjaesong
2024-12-22 15:56:35 +09:00
parent fe4318877a
commit 9dc2dffef9
1 changed files with 48 additions and 0 deletions
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src/net/torvald/terrarum/audio/dsp/Bandpass.kt Normal file
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package net.torvald.terrarum.audio.dsp
import com.badlogic.gdx.graphics.g2d.SpriteBatch
import net.torvald.terrarum.App
import net.torvald.terrarum.ui.BasicDebugInfoWindow.Companion.FILTER_NAME_ACTIVE
/**
* Created by minjaesong on 2024-12-22.
*/
class Bandpass(cutoffLo0: Float, cutoffHi0: Float): TerrarumAudioFilter() {
private val LP = Lowpass(cutoffHi0)
private val HP = Highpass(cutoffLo0)
private var midbufLen = App.audioBufferSize
private var midbuf: List<FloatArray> = listOf(FloatArray(midbufLen), FloatArray(midbufLen))
override fun thru(inbuf: List<FloatArray>, outbuf: List<FloatArray>) {
if (inbuf[0].size != midbufLen) {
midbufLen = inbuf[0].size
midbuf = listOf(FloatArray(midbufLen), FloatArray(midbufLen))
}
HP.thru(inbuf, midbuf)
LP.thru(midbuf, outbuf)
}
override fun drawDebugView(batch: SpriteBatch, x: Int, y: Int) {
// val perc = linToLogPerc(cutoff, 24.0, 24000.0).toFloat()
// batch.color = COL_METER_GRAD2
// Toolkit.fillArea(batch, x.toFloat(), y.toFloat(), BasicDebugInfoWindow.STRIP_W * perc, 14f)
// batch.color = COL_METER_GRAD
// Toolkit.fillArea(batch, x.toFloat(), y+14f, BasicDebugInfoWindow.STRIP_W * perc, 2f)
batch.color = FILTER_NAME_ACTIVE
App.fontSmallNumbers.draw(batch, "FL:${HP.cutoff.toInt()}", x+3f, y+1f)
App.fontSmallNumbers.draw(batch, "FH:${LP.cutoff.toInt()}", x+3f, y+17f)
}
override val debugViewHeight = 32
override fun copyParamsFrom(other: TerrarumAudioFilter) {
if (other is Bandpass) {
other.LP.setCutoff(this.LP.cutoff)
other.HP.setCutoff(this.HP.cutoff)
}
}
}