prepare for resize

Author: dim13

fft.c

@@ -55,10 +55,10 @@ squares(size_t n)
 	double	*p;
 	int	i;
 
-	p = calloc(n / 2, sizeof(double));
+	p = calloc(n, sizeof(double));
 	assert(p);
 
-	for (i = 0; i < n / 2; i++)
+	for (i = 0; i < n; i++)
 		p[i] = sqrt(i + 1);
 
 	return p;
@@ -73,7 +73,7 @@ init_fft(size_t maxn, size_t n)
 
 	plan = fftw_plan_dft_r2c_1d(n, in, out, FFTW_MEASURE);
 	window = hamming(n);
-	sq = squares(n);
+	sq = squares(n / 2);
 	sz = n;
 
 	return 0;

fft.h

@@ -19,7 +19,7 @@
 #define __FFT_H
 
 __BEGIN_DECLS
-int init_fft(size_t);
+int init_fft(size_t, size_t);
 int exec_fft(double *);
 void free_fft(void);
 __END_DECLS

spectrogram.c

@@ -546,7 +546,7 @@ main(int argc, char **argv)
 		0, 0, width, height, 0, white, black);
 	XMapWindow(dsp, container);
 
-	init_fft(round);
+	init_fft(maxwidth, round);
 
 	geo.x = 0;
 	geo.y = 0;