public void TransformBackwardInPlace()
{
int size = 4096;
var pffft = new PFFFT(size, Transform.Real);
var data = new float[size];
pffft.Backward(data);
}
public void TransformBackward()
{
int size = 4096;
var pffft = new PFFFT(size, Transform.Real);
var dataIn = new float[size];
var dataOut = new float[size];
pffft.Backward(dataIn, dataOut);
}
public void TransformForwardAndBackward()
{
int size = 4096;
var pffft = new PFFFT(size, Transform.Real);
var dataIn = new float[size];
var dataOut = new float[size];
var dataBack = new float[size];
var generator = new SineGeneratorStream(4096, 100, TimeSpan.FromSeconds(1));
generator.Read(dataIn, 0, size);
pffft.Forward(dataIn, dataOut);
pffft.Backward(dataOut, dataBack);
CollectionAssert.AreEqual(dataIn, dataBack, new FFTComparer());
}