| -rw-r--r-- | noncore/settings/sysinfo/contrib/fft.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/noncore/settings/sysinfo/contrib/fft.c b/noncore/settings/sysinfo/contrib/fft.c index 01a1b26..60ee27d 100644 --- a/noncore/settings/sysinfo/contrib/fft.c +++ b/noncore/settings/sysinfo/contrib/fft.c @@ -1,80 +1,80 @@ // ****************************************************************** // Copyright (c) 2002- Satoshi, All Rights Reserved. // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. // // // Author : Satoshi ( af230533@im07.alpha-net.ne.jp ) // ****************************************************************** //*********************************************************************** // ¹â®¥Õ¡¼¥ê¥¨ÊÑ´¹¡Ê£Æ£Æ£Ô¡Ë // ¹¹¤Ë¥¹¥Ô¡¼¥É¡¦¥¢¥Ã¥×¤¹¤ë¤Ë¤Ï£Ã£Ï£Ó¤ò¸ÇÄê¤Ç»ý¤Ä¤³¤È¡ª // // Copyright (C) Satoshi 1994-2002 All rights reserved. // *********************************************************************** #include <math.h> -#define FFT_TEST_COUNT 500 // Bench FFT +#define FFT_TEST_COUNT 332 // Bench FFT // ----------------------------------------------------- FFT #define OBJ_DATA_COUNT 128 #define OBJ_DATA_SISU 7 // 128 = 2 ** 7 #define OBJ_DATA_SLIDE 1 #define FFT_TRN 1 #define IFFT_TRN -1 typedef struct _fft { int N; // ¥Ç¥¸¥¿¥ë¡¦¥Ç¡¼¥¿·ï¿ô int r; // N = 2^r double* result_A; // ¥µ¥ó¥×¥ê¥ó¥°¥Ç¡¼¥¿¤ò¤³¤³¤Ë¥»¥Ã¥È¤¹¤ë // cos À®Ê¬¡Äµá¤á¤ë¥¹¥Ú¥¯¥È¥ëÀ®Ê¬¤Î¿ôʬ¤ÎÎΰ褬ɬÍ× double* result_B; // sin À®Ê¬¡Äµá¤á¤ë¥¹¥Ú¥¯¥È¥ëÀ®Ê¬¤Î¿ôʬ¤ÎÎΰ褬ɬÍ× } FFT; #define FFT_SIZE sizeof( FFT ) void digital_fft( FFT* fft ); double SpectA[OBJ_DATA_COUNT]; double SpectB[OBJ_DATA_COUNT]; double TestData[] = { 0.998795456205172405, 0.995184726672196929, 0.146735474455360860, 0.098217140329559660, 0.980784545503230431, 0.970031253194543974, 0.956940335252408824, -0.857728610000272118, -0.831465612302545236, -0.803205431480644943, -0.774010453362736882, -0.747954125354958995, -0.707116781186547351, -0.671125754847018219, -0.634394284163645266, -0.594619304492433024, -0.555545233019601845, 0.941544045483020806, 0.923879532511286738, 0.903989293123443338, 0.881541264344545050, 0.857728610000272118, |