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/* ------------------------------------------------------------------
libofa -- the Open Fingerprint Architecture library
Copyright (C) 2006 MusicIP Corporation
All rights reserved.
-------------------------------------------------------------------*/
// FILE: "fftlib_op.h"
// MODULE: Generic wrapper class for external FFT library calls
// AUTHOR: Frode Holm
// DATE CREATED: 1/12/06
#ifndef __FFTLIB_OP_H
#define __FFTLIB_OP_H 1
#ifdef FFTW
#include "rfftw.h"
class FFTLib_op {
protected:
FFTLib_op() { PlanF = 0; }
void Initialize(int N, bool optimize);
void Destroy();
void SetSize(int N, bool optimize, double *in, double *out);
void ComputeFrame(int N, double *in, double *out);
rfftw_plan PlanF; // Forward plan: real to complex (time to frequency)
};
#endif
#ifdef FFTW3
#include "fftw3.h"
class FFTLib_op {
protected:
FFTLib_op() { PlanF = 0; }
void Initialize(int N, bool optimize);
void Destroy();
void SetSize(int N, bool optimize, double *in, double *out);
void ComputeFrame(int N, double *in, double *out);
unsigned Flags;
fftw_plan PlanF; // Forward plan: real to complex (time to frequency)
};
#endif
#ifdef MKL
class FFTLib_op {
protected:
FFTLib_op() { WSave = 0; }
void Initialize(int N, bool optimize);
void Destroy();
void SetSize(int N, bool optimize, double *in, double *out);
void ComputeFrame(int N, double *in, double *out);
double* WSave;
};
#endif
#ifdef VDSP
#include <Accelerate/Accelerate.h>
class FFTLib_op {
protected:
FFTLib_op() { Init = false; }
void Initialize(int N, bool optimize);
void Destroy();
void SetSize(int N, bool optimize, double *in, double *out);
void ComputeFrame(int N, double *in, double *out);
private:
FFTSetupD SetupReal;
DSPDoubleSplitComplex A;
int Exp;
bool Init;
};
#endif
#endif
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