30 lines
627 B
C
30 lines
627 B
C
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#ifndef __MATH_FFT_H__
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#define __MATH_FFT_H__
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/*
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===============================================================================
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Fast Fourier Transform
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===============================================================================
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*/
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// complex number
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typedef struct {
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float re;
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float im;
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} cpxFloat_t;
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class idFFT {
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public:
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// RAVEN BEGIN
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// jscott: added stride to 1D, created 2D
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static void FFT1D( cpxFloat_t *data, int N, int ISI, int stride = 1 );
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static void FFT2D( cpxFloat_t *data, int N, int ISI );
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static void FFT3D( cpxFloat_t *data, int N, int ISI );
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// RAVEN END
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};
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#endif /* !__MATH_FFT_H__ */
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