Struct SseF32Butterfly19 

struct SseF32Butterfly19<T> {
    direction: FftDirection,
    twiddles_re: [__m128; 9],
    twiddles_im: [__m128; 9],
    _phantom: PhantomData<T>,
}

Fields

direction: FftDirection

twiddles_re: [__m128; 9]

twiddles_im: [__m128; 9]

_phantom: PhantomData<T>

Implementations

impl<T: FftNum> SseF32Butterfly19<T>

unsafe fn new(direction: FftDirection) -> Self

Safety: The current machine must support the sse4.1 instruction set

pub(crate) unsafe fn perform_fft_contiguous( &self, buffer: impl SseArrayMut<f32>, )

pub(crate) unsafe fn perform_parallel_fft_contiguous( &self, buffer: impl SseArrayMut<f32>, )

pub(crate) unsafe fn perform_parallel_fft_direct( &self, values: [__m128; 19], ) -> [__m128; 19]

Trait Implementations

impl<T> Direction for SseF32Butterfly19<T>

fn fft_direction(&self) -> FftDirection

Returns FftDirection::Forward if this instance computes forward FFTs, or FftDirection::Inverse for inverse FFTs

impl<T: FftNum> Fft<T> for SseF32Butterfly19<T>

fn process_immutable_with_scratch( &self, input: &[Complex<T>], output: &mut [Complex<T>], _scratch: &mut [Complex<T>], )

Divides input and output into chunks of self.len(), and computes a FFT on each chunk while keeping input untouched.

fn process_outofplace_with_scratch( &self, input: &mut [Complex<T>], output: &mut [Complex<T>], _scratch: &mut [Complex<T>], )

Divides input and output into chunks of size self.len(), and computes a FFT on each chunk.

fn process_with_scratch( &self, buffer: &mut [Complex<T>], _scratch: &mut [Complex<T>], )

Divides buffer into chunks of size self.len(), and computes a FFT on each chunk.

fn get_inplace_scratch_len(&self) -> usize

Returns the size of the scratch buffer required by process_with_scratch

fn get_outofplace_scratch_len(&self) -> usize

Returns the size of the scratch buffer required by process_outofplace_with_scratch

fn get_immutable_scratch_len(&self) -> usize

Returns the size of the scratch buffer required by process_immutable_with_scratch

fn process(&self, buffer: &mut [Complex<T>])

Computes a FFT in-place.

impl<T> Length for SseF32Butterfly19<T>

fn len(&self) -> usize

The FFT size that this algorithm can process