X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=fourier%2Ffourier.h;h=39aee41ce5ba294239b47a8bf60c43dca19734cf;hb=024d1f9a04d8dd291883d1781e671a4eab7b4c9f;hp=5a8ddb38d117aa91da9ae88247b528cea0907861;hpb=15a0affd01053e899568c0ee1e7bd1315e11f925;p=my-code%2Fapi.git

diff --git a/fourier/fourier.h b/fourier/fourier.h
index 5a8ddb3..39aee41 100644
--- a/fourier/fourier.h
+++ b/fourier/fourier.h
@@ -4,17 +4,17 @@
 #define FOURIER_H
 
 /* includes */
+#define _GNU_SOURCE
 #include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
 
 /* defines */
 #define F_SUCCESS 1
 #define F_ERROR -1
-#define F_DIM_ERROR -2
-#define F_DLEN_ERROR -3
-#define F_MALLOC_ERROR -4
-#define F_SET_DLEN_ERROR -5
-
-#define MAX_DIM 3
+#define F_NOT_SUPPORTED -2
+#define F_DIM_FAILURE -3
+#define F_ALLOC_FAIL -4
 
 /* fourier specific variables */
 typedef struct s_complex {
@@ -25,9 +25,22 @@ typedef struct s_complex {
 typedef struct s_fourier {
   int outfd;
   unsigned char type;
+#define DFT (1<<0)
+#define FFT (1<<1)
+#define FWD (1<<2)
+#define BWD (1<<3)
   int dim;
+#define MAX_DIM 3
   t_complex *data[MAX_DIM];
+  t_complex *ftdata[MAX_DIM];
   int data_len[MAX_DIM];
 } t_fourier;
 
+/* function prototypes */
+int fourier_init(t_fourier *fourier,int outfd);
+int fourier_dft_1d(t_fourier *fourier);
+int fourier_dft_2d(t_fourier *fourier);
+int fourier_dft_3d(t_fourier *fourier);
+int fourier_calc(t_fourier *fourier);
+
 #endif