-/* Wrappers for all the builtin functions
- The arg_list pointer is a list of doubles. Its
- size is equal to the number of arguments the parameter
- takes */
+/*****************************************************************************
+ * builtin_funcs.c:
+ *****************************************************************************
+ * Copyright (C) 2004 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Cyril Deguet <asmax@videolan.org>
+ * code from projectM http://xmms-projectm.sourceforge.net
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+/* Values to optimize the sigmoid function */
+#define R 32767
+#define RR 65534
-inline double below_wrapper(double * arg_list);
-inline double above_wrapper(double * arg_list);
-inline double equal_wrapper(double * arg_list);
-inline double if_wrapper(double * arg_list);
-inline double bnot_wrapper(double * arg_list);
-inline double rand_wrapper(double * arg_list);
-inline double bor_wrapper(double * arg_list);
-inline double band_wrapper(double * arg_list);
-inline double sigmoid_wrapper(double * arg_list);
-inline double max_wrapper(double * arg_list);
-inline double min_wrapper(double * arg_list);
-inline double sign_wrapper(double * arg_list);
-inline double sqr_wrapper(double * arg_list);
-inline double int_wrapper(double * arg_list);
-inline double nchoosek_wrapper(double * arg_list);
-inline double sin_wrapper(double * arg_list);
-inline double cos_wrapper(double * arg_list);
-inline double tan_wrapper(double * arg_list);
-inline double fact_wrapper(double * arg_list);
-inline double asin_wrapper(double * arg_list);
-inline double acos_wrapper(double * arg_list);
-inline double atan_wrapper(double * arg_list);
-inline double atan2_wrapper(double * arg_list);
-
-inline double pow_wrapper(double * arg_list);
-inline double exp_wrapper(double * arg_list);
-inline double abs_wrapper(double * arg_list);
-inline double log_wrapper(double *arg_list);
-inline double log10_wrapper(double * arg_list);
-inline double sqrt_wrapper(double * arg_list);
+static inline double int_wrapper(double * arg_list) {
+
+ return floor(arg_list[0]);
+
+}
+
+
+static inline double sqr_wrapper(double * arg_list) {
+
+ return pow(2, arg_list[0]);
+}
+
+
+static inline double sign_wrapper(double * arg_list) {
+
+ return -arg_list[0];
+}
+
+static inline double min_wrapper(double * arg_list) {
+
+ if (arg_list[0] > arg_list[1])
+ return arg_list[1];
+
+ return arg_list[0];
+}
+
+static inline double max_wrapper(double * arg_list) {
+
+ if (arg_list[0] > arg_list[1])
+ return arg_list[0];
+
+ return arg_list[1];
+}
+
+/* consult your AI book */
+static inline double sigmoid_wrapper(double * arg_list) {
+ return (RR / (1 + exp( -(((double)(arg_list[0])) * arg_list[1]) / R) - R));
+}
+
+
+static inline double bor_wrapper(double * arg_list) {
+
+ return (double)((int)arg_list[0] || (int)arg_list[1]);
+}
+
+static inline double band_wrapper(double * arg_list) {
+ return (double)((int)arg_list[0] && (int)arg_list[1]);
+}
+
+static inline double bnot_wrapper(double * arg_list) {
+ return (double)(!(int)arg_list[0]);
+}
+
+static inline double if_wrapper(double * arg_list) {
+
+ if ((int)arg_list[0] == 0)
+ return arg_list[2];
+ return arg_list[1];
+}
+
+
+static inline double rand_wrapper(double * arg_list) {
+ double l;
+
+ // printf("RAND ARG:(%d)\n", (int)arg_list[0]);
+ l = (double)((rand()) % ((int)arg_list[0]));
+ //printf("VAL: %f\n", l);
+ return l;
+}
+
+static inline double equal_wrapper(double * arg_list) {
+
+ return (arg_list[0] == arg_list[1]);
+}
+
+
+static inline double above_wrapper(double * arg_list) {
+
+ return (arg_list[0] > arg_list[1]);
+}
+
+
+static inline double below_wrapper(double * arg_list) {
+
+ return (arg_list[0] < arg_list[1]);
+}
+
+static inline double sin_wrapper(double * arg_list) {
+ return (sin (arg_list[0]));
+}
+
+
+static inline double cos_wrapper(double * arg_list) {
+ return (cos (arg_list[0]));
+}
+
+static inline double tan_wrapper(double * arg_list) {
+ return (tan(arg_list[0]));
+}
+
+static inline double asin_wrapper(double * arg_list) {
+ return (asin (arg_list[0]));
+}
+
+static inline double acos_wrapper(double * arg_list) {
+ return (acos (arg_list[0]));
+}
+
+static inline double atan_wrapper(double * arg_list) {
+ return (atan (arg_list[0]));
+}
+
+static inline double atan2_wrapper(double * arg_list) {
+ return (atan2 (arg_list[0], arg_list[1]));
+}
+
+static inline double pow_wrapper(double * arg_list) {
+ return (pow (arg_list[0], arg_list[1]));
+}
+
+static inline double exp_wrapper(double * arg_list) {
+ return (exp(arg_list[0]));
+}
+
+static inline double abs_wrapper(double * arg_list) {
+ return (fabs(arg_list[0]));
+}
+
+static inline double log_wrapper(double *arg_list) {
+ return (log (arg_list[0]));
+}
+
+static inline double log10_wrapper(double * arg_list) {
+ return (log10 (arg_list[0]));
+}
+
+static inline double sqrt_wrapper(double * arg_list) {
+ return (sqrt (arg_list[0]));
+}
+
+
+static inline double nchoosek_wrapper(double * arg_list) {
+ unsigned long cnm = 1UL;
+ int i, f;
+ int n, m;
+
+ n = (int)arg_list[0];
+ m = (int)arg_list[1];
+
+ if (m*2 >n) m = n-m;
+ for (i=1 ; i <= m; n--, i++)
+ {
+ if ((f=n) % i == 0)
+ f /= i;
+ else cnm /= i;
+ cnm *= f;
+ }
+ return (double)cnm;
+}
+
+
+static inline double fact_wrapper(double * arg_list) {
+
+
+ int result = 1;
+
+ int n = (int)arg_list[0];
+
+ while (n > 1) {
+ result = result * n;
+ n--;
+ }
+ return (double)result;
+}
projects / vlc / blobdiff