pulp::signal::MultiBackendFft Class Reference

Multi-backend FFT. More...

#include <fft_backend.hpp>

Public Member Functions
	MultiBackendFft (int size, FftBackend backend=FftBackend::auto_)
	Construct for a given power-of-2 size.
	~MultiBackendFft ()
	MultiBackendFft (const MultiBackendFft &)=delete
MultiBackendFft &	operator= (const MultiBackendFft &)=delete
	MultiBackendFft (MultiBackendFft &&) noexcept
MultiBackendFft &	operator= (MultiBackendFft &&) noexcept
int	size () const noexcept
FftBackend	backend () const noexcept
void	forward (std::complex< float > *data) const
	Forward complex FFT (in-place).
void	inverse (std::complex< float > *data) const
	Inverse complex FFT (in-place), normalized by 1/N.

Detailed Description

Multi-backend FFT.

Pinned at construction to a single backend so the audio thread never has to branch on backend selection during process().

RT contract: construction/destruction and backend availability probes may load libraries, allocate plans, or throw, so run them off the audio thread. forward(), inverse(), size(), and backend() are allocation-free after construction when callers provide a valid buffer.

Constructor & Destructor Documentation

MultiBackendFft() [1/3]

pulp::signal::MultiBackendFft::MultiBackendFft ( int size, FftBackend backend = FftBackend::auto_ )

explicit

Construct for a given power-of-2 size.

backend=auto_ picks via resolve_fft_backend(). Throws std::invalid_argument if size is not a power of two, or std::runtime_error if the requested backend cannot be initialized.

~MultiBackendFft()

pulp::signal::MultiBackendFft::~MultiBackendFft

(

)

MultiBackendFft() [2/3]

pulp::signal::MultiBackendFft::MultiBackendFft ( const MultiBackendFft & )

delete

MultiBackendFft() [3/3]

pulp::signal::MultiBackendFft::MultiBackendFft ( MultiBackendFft && )

noexcept

Member Function Documentation

backend()

FftBackend pulp::signal::MultiBackendFft::backend ( ) const

noexcept

forward()

void pulp::signal::MultiBackendFft::forward

(

std::complex< float > *

data

)

const

Forward complex FFT (in-place).

inverse()

void pulp::signal::MultiBackendFft::inverse

(

std::complex< float > *

data

)

const

Inverse complex FFT (in-place), normalized by 1/N.

operator=() [1/2]

MultiBackendFft & pulp::signal::MultiBackendFft::operator= ( const MultiBackendFft & )

delete

operator=() [2/2]

MultiBackendFft & pulp::signal::MultiBackendFft::operator= ( MultiBackendFft && )

noexcept

size()

int pulp::signal::MultiBackendFft::size ( ) const

noexcept

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The documentation for this class was generated from the following file:

• /home/runner/work/pulp/pulp/core/signal/include/pulp/signal/fft_backend.hpp