audio engine: resize buffer without restarting the game

src/net/torvald/terrarum/audio/dsp/BinoPan.kt

@@ -55,13 +55,6 @@ class BinoPan(var pan: Float, var earDist: Float = EARDIST_DEFAULT): TerrarumAud
         private val HALF_PI = (Math.PI / 2.0).toFloat()
     }
 
-    override fun reset() {
-        outLs = Array(2) { FloatArray(App.audioBufferSize) }
-        outRs = Array(2) { FloatArray(App.audioBufferSize) }
-        delayLineL.fill(0f)
-        delayLineR.fill(0f)
-    }
-
     /**
      * @param intensity -inf to +inf
      */

src/net/torvald/terrarum/audio/dsp/Bitcrush.kt

@@ -34,8 +34,5 @@ class Bitcrush(var steps: Int, var inputGain: Float = 1f): TerrarumAudioFilter()
         App.fontSmallNumbers.draw(batch, "B:$bits", x+3f, y+1f)
     }
 
-    override fun reset() {
-    }
-
     override val debugViewHeight = 16
 }

src/net/torvald/terrarum/audio/dsp/Buffer.kt

@@ -18,8 +18,5 @@ object Buffer : TerrarumAudioFilter() {
         App.fontSmallNumbers.draw(batch, "Bs:${App.audioBufferSize}", x+3f, y+1f)
     }
 
-    override fun reset() {
-    }
-
     override val debugViewHeight = 16
 }

src/net/torvald/terrarum/audio/dsp/Convolv.kt

@@ -74,12 +74,6 @@ class Convolv(ir: File, val crossfeed: Float, gain: Float = 1f / 256f): Terrarum
     private val fftOutL = FloatArray(fftLen)
     private val fftOutR = FloatArray(fftLen)
 
-    override fun reset() {
-        realtime = (App.audioBufferSize / TerrarumAudioMixerTrack.SAMPLING_RATEF * 1000000000L)
-        processingSpeed = 1f
-        sumbuf.forEach { it.reim.fill(0f) }
-    }
-
     private fun convolve(x: ComplexArray, h: ComplexArray, output: FloatArray) {
         FFT.fftInto(x, fftIn)
         fftIn.mult(h, fftMult)

src/net/torvald/terrarum/audio/dsp/Gain.kt

@@ -19,9 +19,5 @@ class Gain(var gain: Float): TerrarumAudioFilter() {
         App.fontSmallNumbers.draw(batch, "G:${fullscaleToDecibels(gain.toDouble()).times(100).roundToInt().div(100f)}", x+3f, y+1f)
     }
 
-
-    override fun reset() {
-    }
-
     override val debugViewHeight = 16
 }

src/net/torvald/terrarum/audio/dsp/Highpass.kt

@@ -67,9 +67,4 @@ class Highpass(cutoff0: Float): TerrarumAudioFilter() {
     }
 
     override val debugViewHeight = 16
-
-    override fun reset() {
-        in0.fill(0f)
-        out0.fill(0f)
-    }
 }

src/net/torvald/terrarum/audio/dsp/Lowpass.kt

@@ -67,9 +67,4 @@ class Lowpass(cutoff0: Float): TerrarumAudioFilter() {
     }
 
     override val debugViewHeight = 16
-
-    override fun reset() {
-        in0.fill(0f)
-        out0.fill(0f)
-    }
 }

src/net/torvald/terrarum/audio/dsp/NullFilter.kt

@@ -13,7 +13,4 @@ object NullFilter : TerrarumAudioFilter() {
     }
 
     override val debugViewHeight = 0
-
-    override fun reset() {
-    }
 }

src/net/torvald/terrarum/audio/dsp/Reverb.kt

@@ -53,8 +53,4 @@ class Reverb(val delayMS: Float = 36f, var feedback: Float = 0.92f, var lowpass:
     }
 
     override val debugViewHeight = 0
-
-    override fun reset() {
-        buf.forEach { it.fill(0f) }
-    }
 }

src/net/torvald/terrarum/audio/dsp/SoftClp.kt

@@ -56,7 +56,4 @@ object SoftClp : TerrarumAudioFilter() {
     }
 
     override val debugViewHeight = 0
-
-    override fun reset() {
-    }
 }

src/net/torvald/terrarum/audio/dsp/Spectro.kt

@@ -91,9 +91,6 @@ class Spectro(val gain: Float = 1f) : TerrarumAudioFilter() {
     }
 
     override val debugViewHeight = STRIP_W
-
-    override fun reset() {
-    }
 }
 
 
@@ -157,13 +154,4 @@ class Vecto(val gain: Float = 1f) : TerrarumAudioFilter() {
     }
 
     override val debugViewHeight = STRIP_W
-
-    override fun reset() {
-        backbufL = Array((6144f / App.audioBufferSize).roundToInt().coerceAtLeast(1)) {
-            FloatArray(App.audioBufferSize)
-        }
-        backbufR = Array((6144f / App.audioBufferSize).roundToInt().coerceAtLeast(1)) {
-            FloatArray(App.audioBufferSize)
-        }
-    }
 }

src/net/torvald/terrarum/audio/dsp/TerrarumAudioFilter.kt

@@ -13,7 +13,6 @@ abstract class TerrarumAudioFilter {
         }
         else thru(inbuf, outbuf)
     }
-    abstract fun reset()
     abstract fun drawDebugView(batch: SpriteBatch, x: Int, y: Int)
     abstract val debugViewHeight: Int
 }

src/net/torvald/terrarum/audio/dsp/XYtoMS.kt

@@ -19,9 +19,6 @@ object XYtoMS: TerrarumAudioFilter() {
     }
 
     override val debugViewHeight = 0
-
-    override fun reset() {
-    }
 }
 
 object MStoXY: TerrarumAudioFilter() {
@@ -40,7 +37,4 @@ object MStoXY: TerrarumAudioFilter() {
     }
 
     override val debugViewHeight = 0
-
-    override fun reset() {
-    }
 }