RangeCompressor

/* RangeCompressor(float, float, float, float) */

longdouble RangeCompressor(float param_1,float param_2,float param_3,float param_4)

{
  longdouble lVar1;
  float fVar2;
  float fVar3;
  
  if (param_4 <= param_2) {
    param_4 = param_2;
  }
  if (param_3 <= param_4) {
    param_4 = param_3;
  }
  fVar2 = ((param_1 - param_2) + param_4) / (param_3 - param_2);
  fVar2 = (fVar2 + fVar2) - 1.0;
  if (ABS(fVar2) <= 0.75) {
    fVar2 = (fVar2 + 1.0) * 0.5;
    fVar3 = param_3 * fVar2;
    fVar2 = (1.0 - fVar2) * param_2;
  }
  else {
    fVar3 = (ABS(fVar2) + -0.75) * 0.8;
    if (fVar3 < 1.0) {
      if (fVar2 <= 0.0) {
        lVar1 = (longdouble)Hermite_Spline(0.75,1.0,0.75,0.0,fVar3);
        fVar2 = (1.0 - (float)lVar1) * 0.5;
        fVar3 = param_3 * fVar2;
        fVar2 = (1.0 - fVar2) * param_2;
      }
      else {
        lVar1 = (longdouble)Hermite_Spline(0.75,1.0,0.75,0.0,fVar3);
        fVar2 = ((float)lVar1 + 1.0) * 0.5;
        fVar3 = param_3 * fVar2;
        fVar2 = (1.0 - fVar2) * param_2;
      }
    }
    else {
      fVar3 = (float)((uint)param_3 & -(uint)(0.0 < fVar2));
      fVar2 = (float)(~-(uint)(0.0 < fVar2) & (uint)param_2);
    }
  }
  return (longdouble)((fVar2 + fVar3) - param_4);
}