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# vDSP_FourierTransformFunctions

A protocol that defines functions for fast Fourier transform operations.

```
protocol vDSP_FourierTransformFunctions
```

## Topics

### Associated Types

[`associatedtype SplitComplex`](/documentation/Accelerate/vDSP_FourierTransformFunctions/SplitComplex)

### Type Methods

[`static func destroySetup(OpaquePointer)`](/documentation/Accelerate/vDSP_FourierTransformFunctions/destroySetup(_:))

[`static func makeFFTSetup(log2n: vDSP_Length, radix: vDSP.Radix) -> OpaquePointer?`](/documentation/Accelerate/vDSP_FourierTransformFunctions/makeFFTSetup(log2n:radix:))

[`static func transform(fftSetup: OpaquePointer, log2n: vDSP_Length, source: UnsafePointer<Self.SplitComplex>, destination: UnsafeMutablePointer<Self.SplitComplex>, direction: vDSP.FourierTransformDirection)`](/documentation/Accelerate/vDSP_FourierTransformFunctions/transform(fftSetup:log2n:source:destination:direction:))

[`static func transform2D(fftSetup: OpaquePointer, width: Int, height: Int, source: UnsafePointer<Self.SplitComplex>, destination: UnsafeMutablePointer<Self.SplitComplex>, direction: vDSP.FourierTransformDirection)`](/documentation/Accelerate/vDSP_FourierTransformFunctions/transform2D(fftSetup:width:height:source:destination:direction:))

## Relationships

### Conforming Types

[`vDSP_SplitComplexFloat`](/documentation/Accelerate/vDSP_SplitComplexFloat)

[`vDSP_SplitComplexDouble`](/documentation/Accelerate/vDSP_SplitComplexDouble)

---

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