From 44bc5a27d53124ba82becd4181fc381053c56fdb Mon Sep 17 00:00:00 2001
From: "Kjetil S. Matheussen" <ksvalast@users.sourceforge.net>
Date: Thu, 8 Jan 2004 14:55:24 +0000
Subject: First commit of k_vst~, k_guile and k_cext

svn path=/trunk/externals/k_cext/; revision=1253
---
 k_cext.h | 185 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 185 insertions(+)
 create mode 100644 k_cext.h

(limited to 'k_cext.h')

diff --git a/k_cext.h b/k_cext.h
new file mode 100644
index 0000000..1b1741a
--- /dev/null
+++ b/k_cext.h
@@ -0,0 +1,185 @@
+/*
+ *   k_cext.h copyright 2002 Kjetil S. Matheussen.
+ *
+ *   This library is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Lesser General Public License as
+ *   published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Lesser General Public
+ *   License along with this library; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <stdbool.h>
+#ifdef _MSC_VER
+typedef int bool;
+#define true 1
+#define false 0
+#else
+#include <stdbool.h>
+#endif
+
+#include <stdarg.h>
+
+typedef struct k_cext
+{
+  t_object x_ob;
+  t_float *values;
+
+  int num_ins;
+  int num_outs;
+
+  t_inlet **inlets;
+  t_outlet **outlets;
+
+  void (*k_cext_process)(struct k_cext *x);
+  void *handle;
+
+  char filename[40];
+
+  bool iscext;
+
+  void *userdata; // This attribute /can/ be used by a patch, but using "static" is much cleaner, so please don't.
+} t_k_cext;
+
+
+/* The following functions are used by intsort and floatsort */
+extern int k_cext_intcompare(const void *p1, const void *p2);
+extern int k_cext_floatcompare(const void *p1, const void *p2);
+
+
+/* The following functions are system dependant, and called internally from k_cext only.
+   All ports must implement these functions.
+ */
+
+extern int k_sys_getprocessfunction(t_k_cext *x,char *funcname,char *name);
+extern void k_sys_freehandle(t_k_cext *x);
+extern void k_sys_mktempfilename(char *to);
+extern void k_sys_writeincludes(FILE *file);
+extern void k_sys_makecompilestring(char *to,char *name,char *funcname);
+extern void k_sys_deletefile(char *name);
+extern void k_sys_init(void);
+
+
+
+#define V(a) (x->values[a])
+#define I(a) ((int)(x->values[a]))
+
+
+#define O(a,b) outlet_float(x->outlets[a],b)
+
+#define O0(b) O(0,b)
+#define O1(b) O(1,b)
+#define O2(b) O(2,b)
+#define O3(b) O(3,b)
+#define O4(b) O(4,b)
+#define O5(b) O(5,b)
+#define O6(b) O(6,b)
+
+#define BETWEEN(dasmin,dasmax) ((dasmin) + (((float)(dasmax-(dasmin)))*rand())/(RAND_MAX+1.0))
+#define RANDOM(dasmax) BETWEEN(0,dasmax)
+
+#define SEND(symname,val) \
+do{ \
+  static t_symbol *k_cext_internal_symbol=NULL; \
+  if(k_cext_internal_symbol==NULL) k_cext_internal_symbol=gensym(symname); \
+  if(k_cext_internal_symbol->s_thing) pd_float(k_cext_internal_symbol->s_thing, val);  \
+}while(0)
+
+
+
+#define INTARRAY(name,len) int name[len]={0}
+#define FLOATARRAY(name,len) t_float name[len]={0.0f}
+
+#define INTSORT(a,b) qsort((void *)(a),b, sizeof (int), k_cext_intcompare);
+#define FLOATSORT(a,b) qsort((void *)(a),b, sizeof (float), k_cext_floatcompare);
+
+
+#define IF if(
+#define FOR for(
+#define RANGE(a,b,c) for(a=b;a<c;a++)
+#define WHILE while(
+#define SWITCH switch(
+
+#define THEN )
+#define BEGIN {
+
+#define LOOP for(;;){
+
+#define ELIF }else if(
+
+/* If you think "END ELSE BEGIN" is more natural, just write "END else BEGIN". */
+#define ELSE }else{
+
+#define END }
+#define ENDFOR END
+#define ENDRANGE END
+#define ENDIF END
+#define ENDWHILE END
+#define ENDLOOP END
+#define ENDSWITCH END
+
+#define SC ;
+
+#define NL "\n"
+  
+#define SP " "
+
+
+typedef int (*k_cext_f_int_callback)(t_k_cext *x,...);
+typedef float (*k_cext_f_float_callback)(t_k_cext *x,...);
+
+#ifndef _MSC_VER
+static k_cext_f_int_callback *k_cext_int_funcs[];
+static k_cext_f_float_callback *k_cext_float_funcs[];
+static t_k_cext **k_cext_int_x[];
+static t_k_cext **k_cext_float_x[];
+#else
+k_cext_f_int_callback *k_cext_int_funcs[];
+k_cext_f_float_callback *k_cext_float_funcs[];
+t_k_cext **k_cext_int_x[];
+t_k_cext **k_cext_float_x[];
+#endif
+
+bool k_cext_get_int_funcs(k_cext_f_int_callback **funcs,t_k_cext **xs[],int length,...);
+bool k_cext_get_float_funcs(k_cext_f_float_callback **funcs,t_k_cext **xs[],int length,...);
+
+
+#define INT_(b,a) (*k_cext_int_funcs[a])
+#define I_(a) *k_cext_int_x[a]
+
+
+/* 
+   The alternative suggested by Thomas Grill might be better:
+
+#define INT_0(b,a) (*k_cext_int_funcs[a])(*k_cext_int_x[a])
+#define INT_1(b,a,c) (*k_cext_int_funcs[a])(*k_cext_int_x[a],c)
+#define INT_2(b,a,c,d) (*k_cext_int_funcs[a])(*k_cext_int_x[a],c,d)
+#define INT_3(b,a,c,e) (*k_cext_int_funcs[a])(*k_cext_int_x[a],c,d,e)
+#define INT_4(b,a,c,e,f) (*k_cext_int_funcs[a])(*k_cext_int_x[a],c,d,e,f)
+...
+ */
+
+
+/* VC is reported not to be an iso99 c compiler, so the following very nice macro can't be used. #$¥5¥@{@{@$¥@ !!! */
+/* #define F_INT(a,...) (*k_cext_int_funcs[a])(*k_cext_int_x[a],__VA_ARGS__) */
+
+
+#define FLOAT_(b,a) (*k_cext_float_funcs[a])
+#define F_(a) *k_cext_float_x[a]
+
+/* Same here. */
+/* #define F_FLOAT(a,...) (*k_cext_float_funcs[a])(*k_cext_float_x[a],__VA_ARGS__) */
+
-- 
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