From fc17344cf0d56400c1f592be994c805573ee18b8 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Wed, 10 Sep 2014 19:00:12 +0000 Subject: prepare for resize --- fft.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/fft.c b/fft.c index cbd614c..e90c7d6 100644 --- a/fft.c +++ b/fft.c @@ -26,8 +26,8 @@ #include "fft.h" static fftw_plan plan; -static double *in; static fftw_complex *out; +static double *in; static size_t sz; static double *window; static double *sq; @@ -65,17 +65,16 @@ squares(size_t n) } int -init_fft(size_t n) +init_fft(size_t maxn, size_t n) { - sz = n; - in = fftw_malloc(sz * sizeof(double)); - out = fftw_malloc(sz * sizeof(fftw_complex) / 2); + in = fftw_malloc(maxn * sizeof(double)); + out = fftw_malloc(maxn * sizeof(fftw_complex) / 2); assert(in && out); - window = hamming(sz); - sq = squares(sz); - - plan = fftw_plan_dft_r2c_1d(sz, in, out, FFTW_MEASURE); + plan = fftw_plan_dft_r2c_1d(n, in, out, FFTW_MEASURE); + window = hamming(n); + sq = squares(n); + sz = n; return 0; } -- cgit v1.2.3