#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include <sys/times.h>
#include <sys/time.h>
#include "libsys.h"
#include "fft.h"


#define	FFT_MAX_LEN			1024

float32_t fft_buf_real[FFT_MAX_LEN];
float32_t fft_buf_imag[FFT_MAX_LEN];

int main()
{
	uint32_t i, start, end;
	fft_t fft;

	FFTinit(&fft, 1024);


	memset (fft_buf_real, 0, FFT_MAX_LEN*sizeof(float32_t));
	memset (fft_buf_imag, 0, FFT_MAX_LEN*sizeof(float32_t));


	start = clock();
	for (i=0; i < 1; i++)
	{
		fft_inplace(&fft, fft_buf_real, fft_buf_imag);
	}

	end = clock();

	printf("Time for one %d-point FFT = %f ms\n", FFT_MAX_LEN, 1000.0/1*(float)(end-start)/CLOCKS_PER_SEC);
}