de.sciss.synth.ugen.package.scala Maven / Gradle / Ivy

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A sound synthesis library for the SuperCollider server

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package de.sciss.synth

import collection.immutable.{IndexedSeq => IIdxSeq}
import collection.breakOut

package object ugen {
   private[ugen] def maxInt( is: Int* ) : Int = is.reduceLeft( math.max( _, _ ))
   private[ugen] def stringArg( s: String ) : IIdxSeq[ UGenIn ] = {
      val bs = s.getBytes
      Constant( bs.length ) +: (bs.map( Constant( _ ))( breakOut ): IIdxSeq[ UGenIn ])
   }

   private[ugen] def replaceZeroesWithSilence( ins: IIdxSeq[ UGenIn ]) : IIdxSeq[ UGenIn ] = {
      val numZeroes  = ins.foldLeft( 0 )( (sum, in) => in match {
         case Constant( 0 )   => sum + 1
         case _               => sum
      })
      if( numZeroes == 0 ) {
         ins
      } else {
         // WARNING: Silent has been removed now from scsynth !!!
//         val silent = Silent.ar( numZeroes ).outputs.iterator
//         val silent = new UGen.MultiOut( "Silent", audio, IIdxSeq.fill( numZeroes )( audio ), IIdxSeq.empty ).outputs.iterator
         val silent = new UGen.MultiOut( "DC", audio, IIdxSeq( audio ), IIdxSeq( Constant( 0 ))).outputs.head
         ins.map {
            case Constant( 0 )   => silent // .next()
            case x               => x
         }
      }
   }
}