Convolve::Workspace Class Reference

Description

Workspace for Fourier convolution.

Workspace contains input (source and kernel), intermediate and output arrays to run convolution via fft; 'source' it is our signal, 'kernel' it is our resolution function. Sizes of input arrays are adjusted; output arrays are alocated via fftw3 allocation for maximum performance.

Definition at line 87 of file Convolve.h.

Public Member Functions
	Workspace ()=default
	~Workspace ()
void	clear ()

Private Attributes
double *	dst_fft {nullptr}
	result of product of FFT(source) and FFT(kernel) More...
int	h_dst {0}
int	h_fftw {0}
int	h_kernel {0}
int	h_offset {0}
int	h_src {0}
double *	in_kernel {nullptr}
	adjusted input 'kernel' array More...
double *	in_src {nullptr}
	adjusted input 'source' array More...
double *	out_kernel {nullptr}
	result of Fourier transformation of kernel More...
double *	out_src {nullptr}
	result of Fourier transformation of source More...
fftw_plan	p_back {nullptr}
fftw_plan	p_forw_kernel {nullptr}
fftw_plan	p_forw_src {nullptr}
int	w_dst {0}
int	w_fftw {0}
int	w_kernel {0}
int	w_offset {0}
int	w_src {0}

Friends
class	Convolve

Constructor & Destructor Documentation

Workspace()

Convolve::Workspace::Workspace ( )

default

~Workspace()

Convolve::Workspace::~Workspace

(

)

Definition at line 29 of file Convolve.cpp.

{
    clear();
}

References clear().

Here is the call graph for this function:

Member Function Documentation

clear()

void Convolve::Workspace::clear

(

)

Definition at line 34 of file Convolve.cpp.

{
    h_src = 0;
    w_src = 0;
    h_kernel = 0;
    w_kernel = 0;
 
    delete[] in_src;
    in_src = nullptr;
 
    if (out_src)
        fftw_free((fftw_complex*)out_src);
    out_src = nullptr;
 
 
    delete[] in_kernel;
    in_kernel = nullptr;
 
    if (out_kernel)
        fftw_free((fftw_complex*)out_kernel);
    out_kernel = nullptr;
 
 
    delete[] dst_fft;
    dst_fft = nullptr;
 
    // if(dst) delete[] dst;
    // dst=0;
 
    h_offset = 0;
    w_offset = 0;
 
    if (p_forw_src != nullptr)
        fftw_destroy_plan(p_forw_src);
    if (p_forw_kernel != nullptr)
        fftw_destroy_plan(p_forw_kernel);
    if (p_back != nullptr)
        fftw_destroy_plan(p_back);
 
    fftw_cleanup();
}

Referenced by ~Workspace(), and Convolve::init().

Friends And Related Function Documentation

Convolve

friend class Convolve

friend

Definition at line 92 of file Convolve.h.

Member Data Documentation

dst_fft

double* Convolve::Workspace::dst_fft {nullptr}

private

result of product of FFT(source) and FFT(kernel)

Definition at line 108 of file Convolve.h.

Referenced by Convolve::fftconvolve(), Convolve::fftw_circular_convolution(), and Convolve::init().

h_dst

int Convolve::Workspace::h_dst {0}

private

Definition at line 109 of file Convolve.h.

Referenced by Convolve::fftconvolve(), and Convolve::init().

h_fftw

int Convolve::Workspace::h_fftw {0}

private

Definition at line 98 of file Convolve.h.

Referenced by Convolve::fftconvolve(), Convolve::fftw_circular_convolution(), and Convolve::init().

h_kernel

int Convolve::Workspace::h_kernel {0}

private

Definition at line 96 of file Convolve.h.

Referenced by Convolve::fftconvolve(), Convolve::fftw_circular_convolution(), and Convolve::init().

h_offset

int Convolve::Workspace::h_offset {0}

private

Definition at line 110 of file Convolve.h.

Referenced by Convolve::fftconvolve(), and Convolve::init().

h_src

int Convolve::Workspace::h_src {0}

private

Definition at line 95 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

in_kernel

double* Convolve::Workspace::in_kernel {nullptr}

private

adjusted input 'kernel' array

Definition at line 104 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

in_src

double* Convolve::Workspace::in_src {nullptr}

private

adjusted input 'source' array

Definition at line 100 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

out_kernel

double* Convolve::Workspace::out_kernel {nullptr}

private

result of Fourier transformation of kernel

Definition at line 106 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

out_src

double* Convolve::Workspace::out_src {nullptr}

private

result of Fourier transformation of source

Definition at line 102 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

p_back

fftw_plan Convolve::Workspace::p_back {nullptr}

private

Definition at line 113 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

p_forw_kernel

fftw_plan Convolve::Workspace::p_forw_kernel {nullptr}

private

Definition at line 112 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

p_forw_src

fftw_plan Convolve::Workspace::p_forw_src {nullptr}

private

Definition at line 111 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

w_dst

int Convolve::Workspace::w_dst {0}

private

Definition at line 109 of file Convolve.h.

Referenced by Convolve::fftconvolve(), and Convolve::init().

w_fftw

int Convolve::Workspace::w_fftw {0}

private

Definition at line 98 of file Convolve.h.

Referenced by Convolve::fftconvolve(), Convolve::fftw_circular_convolution(), and Convolve::init().

w_kernel

int Convolve::Workspace::w_kernel {0}

private

Definition at line 96 of file Convolve.h.

Referenced by Convolve::fftconvolve(), Convolve::fftw_circular_convolution(), and Convolve::init().

w_offset

int Convolve::Workspace::w_offset {0}

private

Definition at line 110 of file Convolve.h.

Referenced by Convolve::fftconvolve(), and Convolve::init().

w_src

int Convolve::Workspace::w_src {0}

private

Definition at line 95 of file Convolve.h.

Referenced by Convolve::fftw_circular_convolution(), and Convolve::init().

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

• /home/build/builds/o5h8MZZm/0/mlz/bornagain/Device/Resolution/Convolve.h
• /home/build/builds/o5h8MZZm/0/mlz/bornagain/Device/Resolution/Convolve.cpp