util::LArFFTWPlan Class Reference

#include <LArFFTWPlan.h>

Public Member Functions
	LArFFTWPlan (int transformSize, const std::string &option)
	~LArFFTWPlan ()

Public Attributes
void *	fPlan
void *	rPlan
void *	fIn
void *	fOut
void *	rIn
void *	rOut

Private Member Functions
unsigned int	MapFFTWOption ()

Private Attributes
int	fSize
int	fFreqSize
int *	fN
std::string	fOption

Static Private Attributes
static std::mutex	mutex_

Detailed Description

Definition at line 13 of file LArFFTWPlan.h.

Constructor & Destructor Documentation

util::LArFFTWPlan::LArFFTWPlan	(	int	transformSize,
		const std::string &	option
	)

Definition at line 6 of file LArFFTWPlan.cxx.

  : fSize    (transformSize)
  , fOption  (option){

  std::lock_guard<std::mutex> lock(mutex_);

  fFreqSize = fSize/2+1;
  fN = new int[1];
  fN[0] = fSize;

  fIn = fftw_malloc(sizeof(double)*fSize);
  fOut= fftw_malloc(sizeof(fftw_complex)*fFreqSize);
  fPlan = (void*)fftw_plan_dft_r2c(1, fN, (double*)fIn, (fftw_complex*)fOut, MapFFTWOption());

  rIn = fftw_malloc(sizeof(fftw_complex)*fFreqSize);
  rOut= fftw_malloc(sizeof(double)*fSize);
  rPlan = (void*)fftw_plan_dft_c2r(1, fN, (fftw_complex*)rIn, (double*)rOut, MapFFTWOption());
}

util::LArFFTWPlan::~LArFFTWPlan

(

)

Definition at line 25 of file LArFFTWPlan.cxx.

{
  fftw_destroy_plan((fftw_plan)fPlan);
  fPlan = 0;
  fftw_free(fIn);
  fIn = 0;
  fftw_free((fftw_complex*)fOut);
  fOut = 0;

  fftw_destroy_plan((fftw_plan)rPlan);
  rPlan = 0;
  fftw_free((fftw_complex*)rIn);
  rIn = 0;
  fftw_free(rOut);
  rOut = 0;

  delete [] fN;
  fN = 0;
}

Member Function Documentation

unsigned int util::LArFFTWPlan::MapFFTWOption ( )

private

Definition at line 45 of file LArFFTWPlan.cxx.

{
  std::transform(fOption.begin(), fOption.end(),fOption.begin(), ::toupper);
  if (fOption.find("ES")!=string::npos)
     return FFTW_ESTIMATE;
  if (fOption.find("M")!=string::npos)
     return FFTW_MEASURE;
  if (fOption.find("P")!=string::npos)
     return FFTW_PATIENT;
  if (fOption.find("EX")!=string::npos)
     return FFTW_EXHAUSTIVE;
  return FFTW_ESTIMATE;
}

Member Data Documentation

int util::LArFFTWPlan::fFreqSize

private

Definition at line 28 of file LArFFTWPlan.h.

void* util::LArFFTWPlan::fIn

Definition at line 20 of file LArFFTWPlan.h.

int* util::LArFFTWPlan::fN

private

Definition at line 29 of file LArFFTWPlan.h.

std::string util::LArFFTWPlan::fOption

private

Definition at line 30 of file LArFFTWPlan.h.

void* util::LArFFTWPlan::fOut

Definition at line 21 of file LArFFTWPlan.h.

void* util::LArFFTWPlan::fPlan

Definition at line 18 of file LArFFTWPlan.h.

int util::LArFFTWPlan::fSize

private

Definition at line 27 of file LArFFTWPlan.h.

std::mutex util::LArFFTWPlan::mutex_

staticprivate

Definition at line 26 of file LArFFTWPlan.h.

void* util::LArFFTWPlan::rIn

Definition at line 22 of file LArFFTWPlan.h.

void* util::LArFFTWPlan::rOut

Definition at line 23 of file LArFFTWPlan.h.

void* util::LArFFTWPlan::rPlan

Definition at line 19 of file LArFFTWPlan.h.

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

• LArFFTWPlan.h
• LArFFTWPlan.cxx