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-rw-r--r--src/iemlib2/iem_prepend_kernel.c259
1 files changed, 259 insertions, 0 deletions
diff --git a/src/iemlib2/iem_prepend_kernel.c b/src/iemlib2/iem_prepend_kernel.c
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--- /dev/null
+++ b/src/iemlib2/iem_prepend_kernel.c
@@ -0,0 +1,259 @@
+/* Copyright (c) 1997-2003 Miller Puckette.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iemlib2 written by Thomas Musil (c) IEM KUG Graz Austria 2000 - 2003 */
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+#include "m_pd.h"
+#include "g_canvas.h"
+#include "iemlib.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+
+EXTERN void canvas_getargs(int *argcp, t_atom **argvp);
+
+
+/* ------------------------ iem_prepend_kernel ---------------------------- */
+static t_class *iem_prepend_kernel_class;
+
+typedef struct _iem_prepend_kernel
+{
+ t_object x_obj;
+ int x_inlet_select;
+ int x_size;
+ int x_ac;
+ t_atom *x_at;
+ t_symbol *x_sym;
+ t_atomtype x_type;
+} t_iem_prepend_kernel;
+
+static void iem_prepend_kernel_atcopy(t_atom *src, t_atom *dst, int n)
+{
+ while(n--)
+ *dst++ = *src++;
+}
+
+static void iem_prepend_kernel_inlet_select(t_iem_prepend_kernel *x, t_floatarg fin_sel_01)
+{
+ x->x_inlet_select = (int)fin_sel_01;
+}
+
+static void iem_prepend_kernel_bang(t_iem_prepend_kernel *x)
+{
+ if(x->x_inlet_select) /* if 2nd inlet */
+ {
+ x->x_ac = 0;
+ x->x_type = A_NULL;
+ x->x_sym = &s_bang;
+ }
+ else /* if 1st inlet */
+ {
+ outlet_anything(x->x_obj.ob_outlet, x->x_sym, x->x_ac, x->x_at);
+ }
+}
+
+static void iem_prepend_kernel_float(t_iem_prepend_kernel *x, t_float f)
+{
+ if(x->x_inlet_select) /* if 2nd inlet */
+ {
+ x->x_ac = 1;
+ x->x_type = A_FLOAT;
+ SETFLOAT(x->x_at, f);
+ x->x_sym = &s_list;
+ }
+ else /* if 1st inlet */
+ {
+ if(x->x_type == A_NULL)
+ {
+ outlet_float(x->x_obj.ob_outlet, f);
+ }
+ else
+ {
+ SETFLOAT(x->x_at+x->x_ac, f);
+ outlet_anything(x->x_obj.ob_outlet, x->x_sym, x->x_ac+1, x->x_at);
+ }
+ }
+}
+
+static void iem_prepend_kernel_symbol(t_iem_prepend_kernel *x, t_symbol *s)
+{
+ if(x->x_inlet_select) /* if 2nd inlet */
+ {
+ x->x_ac = 1;
+ x->x_type = A_SYMBOL;
+ SETSYMBOL(x->x_at, s);
+ x->x_sym = &s_list;
+ }
+ else /* if 1st inlet */
+ {
+ if(x->x_type == A_NULL)
+ {
+ outlet_symbol(x->x_obj.ob_outlet, s);
+ }
+ else
+ {
+ SETSYMBOL(x->x_at+x->x_ac, s);
+ outlet_anything(x->x_obj.ob_outlet, x->x_sym, x->x_ac+1, x->x_at);
+ }
+ }
+}
+
+static void iem_prepend_kernel_pointer(t_iem_prepend_kernel *x, t_gpointer *gp)
+{
+ if(x->x_inlet_select) /* if 2nd inlet */
+ {
+ x->x_ac = 1;
+ x->x_type = A_POINTER;
+ SETPOINTER(x->x_at, gp);
+ x->x_sym = &s_list;
+ }
+ else /* if 1st inlet */
+ {
+ if(x->x_type == A_NULL)
+ {
+ outlet_pointer(x->x_obj.ob_outlet, gp);
+ }
+ else
+ {
+ SETPOINTER(x->x_at+x->x_ac, gp);
+ outlet_anything(x->x_obj.ob_outlet, x->x_sym, x->x_ac+1, x->x_at);
+ }
+ }
+}
+
+static void iem_prepend_kernel_list(t_iem_prepend_kernel *x, t_symbol *s, int ac, t_atom *av)
+{
+ if(x->x_inlet_select) /* if 2nd inlet */
+ {
+ if((ac+10) > x->x_size)
+ {
+ x->x_at = (t_atom *)resizebytes(x->x_at, x->x_size*sizeof(t_atom), 2*(ac+10)*sizeof(t_atom));
+ x->x_size = 2*(ac+10);
+ }
+ x->x_ac = ac;
+ x->x_type = A_GIMME;
+ x->x_sym = &s_list;
+ iem_prepend_kernel_atcopy(av, x->x_at, ac);
+ }
+ else /* if 1st inlet */
+ {
+ if((ac+x->x_ac+1) > x->x_size)
+ {
+ x->x_at = (t_atom *)resizebytes(x->x_at, x->x_size*sizeof(t_atom), 2*(ac+x->x_ac+1)*sizeof(t_atom));
+ x->x_size = 2*(ac+x->x_ac+1);
+ }
+ if(x->x_type == A_NULL)
+ {
+ outlet_anything(x->x_obj.ob_outlet, &s_list, ac, av);
+ }
+ else
+ {
+ iem_prepend_kernel_atcopy(av, x->x_at + x->x_ac, ac);
+ outlet_anything(x->x_obj.ob_outlet, x->x_sym, x->x_ac+ac, x->x_at);
+ }
+ }
+}
+
+static void iem_prepend_kernel_anything(t_iem_prepend_kernel *x, t_symbol *s, int ac, t_atom *av)
+{
+ if(x->x_inlet_select) /* if 2nd inlet */
+ {
+ if((ac+10) > x->x_size)
+ {
+ x->x_at = (t_atom *)resizebytes(x->x_at, x->x_size*sizeof(t_atom), 2*(ac+10)*sizeof(t_atom));
+ x->x_size = 2*(ac+10);
+ }
+ x->x_ac = ac;
+ x->x_type = A_COMMA;
+ x->x_sym = s;
+ iem_prepend_kernel_atcopy(av, x->x_at, ac);
+ }
+ else /* if 1st inlet */
+ {
+ if((ac+x->x_ac+1) > x->x_size)
+ {
+ x->x_at = (t_atom *)resizebytes(x->x_at, x->x_size*sizeof(t_atom), 2*(ac+x->x_ac+1)*sizeof(t_atom));
+ x->x_size = 2*(ac+x->x_ac+1);
+ }
+ if(x->x_type == A_NULL)
+ {
+ outlet_anything(x->x_obj.ob_outlet, s, ac, av);
+ }
+ else
+ {
+ SETSYMBOL(x->x_at + x->x_ac, s);
+ iem_prepend_kernel_atcopy(av, x->x_at+x->x_ac+1, ac);
+ outlet_anything(x->x_obj.ob_outlet, x->x_sym, x->x_ac+ac+1, x->x_at);
+ }
+ }
+}
+
+static void iem_prepend_kernel_free(t_iem_prepend_kernel *x)
+{
+ if(x->x_at)
+ freebytes(x->x_at, x->x_size * sizeof(t_atom));
+}
+
+static void *iem_prepend_kernel_new(void)
+{
+ t_iem_prepend_kernel *x = (t_iem_prepend_kernel *)pd_new(iem_prepend_kernel_class);
+ t_glist *glist = (t_glist *)canvas_getcurrent();
+ t_canvas *canvas=glist_getcanvas(glist);
+ int ac=0;
+ t_atom *av;
+
+ canvas_setcurrent(canvas);
+ canvas_getargs(&ac, &av);
+ canvas_unsetcurrent(canvas);
+
+ x->x_size = 30;
+ if(ac > 5)
+ x->x_size = 2*(ac+10);
+ x->x_at = (t_atom *)getbytes(x->x_size * sizeof(t_atom));
+ x->x_inlet_select = 1;
+ if(ac <= 0)
+ {
+ x->x_type = A_NULL;
+ x->x_ac = 0;
+ x->x_sym = &s_bang;
+ }
+ else
+ {
+ if(IS_A_FLOAT(av, 0))
+ {
+ iem_prepend_kernel_list(x, &s_list, ac, av);
+ }
+ else if(IS_A_SYMBOL(av, 0))
+ {
+ iem_prepend_kernel_anything(x, atom_getsymbol(av), ac-1, av+1);
+ }
+ }
+ outlet_new(&x->x_obj, &s_list);
+ return(x);
+}
+
+void iem_prepend_kernel_setup(void)
+{
+ char str[2];
+
+ str[0] = 1;
+ str[1] = 0;
+ iem_prepend_kernel_class = class_new(gensym("iem_prepend_kernel"),
+ (t_newmethod)iem_prepend_kernel_new, (t_method)iem_prepend_kernel_free,
+ sizeof(t_iem_prepend_kernel), 0, 0);
+ class_addbang(iem_prepend_kernel_class, (t_method)iem_prepend_kernel_bang);
+ class_addpointer(iem_prepend_kernel_class, iem_prepend_kernel_pointer);
+ class_addfloat(iem_prepend_kernel_class, (t_method)iem_prepend_kernel_float);
+ class_addsymbol(iem_prepend_kernel_class, iem_prepend_kernel_symbol);
+ class_addlist(iem_prepend_kernel_class, iem_prepend_kernel_list);
+ class_addmethod(iem_prepend_kernel_class, (t_method)iem_prepend_kernel_inlet_select, gensym(str), A_FLOAT, 0);
+ class_addanything(iem_prepend_kernel_class, iem_prepend_kernel_anything);
+ class_sethelpsymbol(iem_prepend_kernel_class, gensym("iemhelp/help-merge_any"));
+}