libwt/fft__fftw3_8hh_source.html

 #ifndef __WT_FFT_FFTW3_HH__

 #define __WT_FFT_FFTW3_HH__


 #include <fftw3.h>

 #include "types.hh"


 namespace wt {


 class FFT

 {

 public:

   typedef enum {

     FORWARD,

     BACKWARD

   } Direction;


 public:

   FFT(CVector &in, CVector &out, Direction dir);

   FFT(CMatrix &in, CMatrix &out, Direction dir);

   FFT(CVector &inout, Direction dir);

   FFT(CMatrix &inout, Direction dir);


   virtual ~FFT();


   void exec();


 public:

   static void exec(CVector &in, CVector &out, Direction dir);

   static void exec(CMatrix &in, CMatrix &out, Direction dir);

   static void exec(CVector &inout, Direction dir);

   static void exec(CMatrix &inout, Direction dir);


   static size_t roundUp(size_t N);


 protected:

   fftw_plan _plan;

 };


 }


 #endif // __WT_FFT_FFTW3_HH__

wt::FFT::roundUp
static size_t roundUp(size_t N)
Computes the smallest samples size larger than or equal to N for which the FFT can be computed fast...
Definition: fft_fftw3.cc:93

wt::FFT::exec
void exec()
Executes the FFT.
Definition: fft_fftw3.cc:64

wt::FFT::FFT
FFT(CVector &in, CVector &out, Direction dir)
Constructs the FFT of the input vector in and stores the result into out.
Definition: fft_fftw3.cc:7

wt::FFT::Direction
Direction
Specifies the possible FFT directions.
Definition: fft_fftw3.hh:14

wt::FFT
Implements the generic FFT-plan interface for the FFTW3 library.
Definition: fft_fftw3.hh:10

wt::FFT::~FFT
virtual ~FFT()
Destructor.
Definition: fft_fftw3.cc:59

wt
Definition: convolution.hh:7

wt::FFT::BACKWARD
Backward transform.
Definition: fft_fftw3.hh:16

wt::FFT::FORWARD
Forward transform.
Definition: fft_fftw3.hh:15

wt::FFT::_plan
fftw_plan _plan
The actual FFTW3 plan being executed.
Definition: fft_fftw3.hh:53