- initial import

git-svn-id: http://moon:8086/svn/mips@1 a8ebac50-d88d-4704-bea3-6648445a41b3

src/test_fft.c

@@ -0,0 +1,38 @@
+#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 fft_buf_real[FFT_MAX_LEN];
+FLOAT32 fft_buf_imag[FFT_MAX_LEN];
+
+int main()
+{
+	UINT32 i, start, end;
+	fft_t fft;
+
+	FFTinit(&fft, 1024);
+
+
+	memset (fft_buf_real, 0, FFT_MAX_LEN*sizeof(FLOAT32));
+	memset (fft_buf_imag, 0, FFT_MAX_LEN*sizeof(FLOAT32));
+
+
+	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);
+}