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/* ------------------------- arraycopy --------------------------------------- */
/* */
/* Copy data from one array to another . */
/* Written by Olaf Matthes <olaf.matthes@gmx.de> */
/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */
/* */
/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* */
/* Based on PureData by Miller Puckette and others. */
/* */
/* ---------------------------------------------------------------------------- */
#include "m_pd.h"
#include <stdlib.h>
static char *version = "arraycopy v0.2, written by Olaf Matthes <olaf.matthes@gmx.de>";
typedef struct arraycopy
{
t_object x_obj;
t_symbol *x_destarray;
t_symbol *x_sourcearray;
t_garray *x_destbuf;
t_garray *x_sourcebuf;
t_int x_start;
t_int x_end;
t_int x_pos;
short x_print;
} t_arraycopy;
/* choose the destination array to copy to */
static void arraycopy_setdestarray(t_arraycopy *x, t_symbol *s)
{
t_garray *b;
if ((b = (t_garray *)pd_findbyclass(s, garray_class)))
{
// post("arraycopy: destination array set to \"%s\"", s->s_name);
x->x_destbuf = b;
} else {
post("arraycopy: no array \"%s\" (error %d)", s->s_name, b);
x->x_destbuf = 0;
}
}
static void arraycopy_setdest(t_arraycopy *x, t_symbol *s)
{
x->x_destarray = s;
arraycopy_setdestarray(x, x->x_destarray);
}
/* choose the source array to copy from */
static void arraycopy_setsourcearray(t_arraycopy *x, t_symbol *s)
{
t_garray *b;
if ((b = (t_garray *)pd_findbyclass(s, garray_class)))
{
// post("arraycopy: source array set to \"%s\"", s->s_name);
x->x_sourcebuf = b;
} else {
post("arraycopy: no array \"%s\" (error %d)", s->s_name, b);
x->x_sourcebuf = 0;
}
}
/* this is the routine that actually does the copying */
/* get's called directly when we get a 'bang' */
static void arraycopy_docopy(t_arraycopy *x)
{
t_garray *b; /* make local copy of array */
t_float *tab; /* the content itselfe */
int items;
t_int i;
t_garray *A;
int npoints;
t_float *vec;
if(!x->x_destarray)
{
post("arraycopy: no destination array specified");
return;
}
if(!x->x_sourcearray)
{
post("arraycopy: no source array specified");
return;
}
A = x->x_destbuf;
if ((b = (t_garray *)pd_findbyclass(x->x_sourcearray, garray_class)))
{
// post("arraycopy: source array set to \"%s\"", x->x_sourcearray->s_name);
} else {
post("arraycopy: no array \"%s\" (error %d)", x->x_sourcearray->s_name, b);
return;
}
// read from our array
if (!garray_getfloatarray(b, &items, &tab))
{
post("arraycopy: couldn't read from source array!");
return;
}
if (!(A = (t_garray *)pd_findbyclass(x->x_destarray, garray_class)))
error("arraycopy: %s: no such array", x->x_destarray->s_name);
else if (!garray_getfloatarray(A, &npoints, &vec))
error("arraycopy: %s: bad template ", x->x_destarray->s_name);
else
{
if(x->x_start > items) // check start point
{
post("arraycopy: source start point out of range for the array given");
return;
}
if(x->x_end) // end point is specified
{
if(x->x_end > items) // check start point
{
post("arraycopy: source end point out of range for the array given");
x->x_end = items;
}
}
else x->x_end = items;
if(x->x_pos)
vec += x->x_pos;
for(i = x->x_start; i < x->x_end; i++)
{
*vec++ = tab[i];
}
garray_redraw(A);
if(x->x_print)post("arraycopy: copied %d values from array \"%s\" to array \"%s\"",
x->x_end-x->x_start, x->x_sourcearray->s_name, x->x_destarray->s_name);
}
}
static void arraycopy_list(t_arraycopy *x, t_symbol *s, int argc, t_atom *argv)
{
if(argc > 1) {
x->x_sourcearray = atom_getsymbolarg(0, argc, argv);
x->x_destarray = atom_getsymbolarg(1, argc, argv);
}
}
static void arraycopy_source(t_arraycopy *x, t_symbol *s)
{
x->x_sourcearray = s;
x->x_start = x->x_end = x->x_pos = 0;
arraycopy_docopy(x);
}
static void arraycopy_print(t_arraycopy *x, t_floatarg f)
{
if(f)
x->x_print = 1;
else
x->x_print = 0;
}
static void arraycopy_copy(t_arraycopy *x, t_symbol *s, int argc, t_atom *argv)
{
if(argc == 1) // source array name supplied
{
x->x_sourcearray = atom_getsymbolarg(0, argc, argv);
x->x_start = x->x_end = x->x_pos = 0;
}
else if(argc == 2) // array name and start point supplied
{
x->x_sourcearray = atom_getsymbolarg(0, argc, argv);
x->x_start = atom_getfloatarg(1, argc, argv);
x->x_end = x->x_pos = 0;
}
else if(argc == 3) // arrayname and start & end point supplied
{
x->x_sourcearray = atom_getsymbolarg(0, argc, argv);
x->x_start = atom_getfloatarg(1, argc, argv);
if(argv[2].a_type == A_FLOAT) // real position
{
x->x_end = atom_getfloatarg(2, argc, argv);
}
else // offset given
{
t_symbol *offset = atom_getsymbolarg(2, argc, argv);
x->x_end = (t_int)atoi(offset->s_name) + x->x_start;
}
x->x_pos = 0;
}
else if(argc == 4) // as above & dest. array
{
x->x_sourcearray = atom_getsymbolarg(0, argc, argv);
x->x_start = atom_getfloatarg(1, argc, argv);
if(argv[2].a_type == A_FLOAT) // real position
{
x->x_end = atom_getfloatarg(2, argc, argv);
}
else // offset given
{
t_symbol *offset = atom_getsymbolarg(2, argc, argv);
x->x_end = (t_int)atoi(offset->s_name) + x->x_start;
}
x->x_destarray = atom_getsymbolarg(3, argc, argv);
arraycopy_setdestarray(x, x->x_destarray);
x->x_pos = 0;
}
else if(argc == 5) // as above & dest. array & pos. in dest.
{
x->x_sourcearray = atom_getsymbolarg(0, argc, argv);
x->x_start = atom_getfloatarg(1, argc, argv);
if(argv[2].a_type == A_FLOAT) // real position
{
x->x_end = atom_getfloatarg(2, argc, argv);
}
else // offset given
{
t_symbol *offset = atom_getsymbolarg(2, argc, argv);
x->x_end = (t_int)atoi(offset->s_name) + x->x_start;
}
x->x_destarray = atom_getsymbolarg(3, argc, argv);
arraycopy_setdestarray(x, x->x_destarray);
x->x_pos = atom_getfloatarg(4, argc, argv);
}
else post("arraycopy: copy: wrong number of arguments");
arraycopy_docopy(x);
}
static t_class *arraycopy_class;
static void *arraycopy_new(t_symbol *s, int argc, t_atom *argv)
{
t_arraycopy *x = (t_arraycopy *)pd_new(arraycopy_class);
if (argc > 0) {
x->x_destarray = atom_getsymbolarg(0, argc, argv);
arraycopy_setdestarray(x, x->x_destarray);
}
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("symbol"), gensym("dest"));
x->x_start = x->x_end = x->x_pos = x->x_print = 0;
return (x);
}
#ifndef MAXLIB
void arraycopy_setup(void)
{
/* the object's class: */
arraycopy_class = class_new(gensym("arraycopy"), (t_newmethod)arraycopy_new,
0, sizeof(t_arraycopy), 0, A_GIMME, 0);
#else
void maxlib_arraycopy_setup(void)
{
/* the object's class: */
arraycopy_class = class_new(gensym("maxlib_arraycopy"), (t_newmethod)arraycopy_new,
0, sizeof(t_arraycopy), 0, A_GIMME, 0);
class_addcreator((t_newmethod)arraycopy_new, gensym("arraycopy"), A_GIMME, 0);
#endif
class_addmethod(arraycopy_class, (t_method)arraycopy_copy, gensym("copy"), A_GIMME, 0);
class_addmethod(arraycopy_class, (t_method)arraycopy_print, gensym("print"), A_FLOAT, 0);
class_addmethod(arraycopy_class, (t_method)arraycopy_setdest, gensym("dest"), A_SYMBOL, 0);
class_addsymbol(arraycopy_class, arraycopy_source);
class_addbang(arraycopy_class, arraycopy_docopy);
// class_addlist(arraycopy_class, arraycopy_list);
#ifndef MAXLIB
post(version);
#else
class_sethelpsymbol(arraycopy_class, gensym("maxlib/arraycopy-help.pd"));
#endif
}
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