From 8b0873392ad0db55fdb9d0cdfc670366bc96a9c9 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 26 Apr 2010 03:10:47 +0000 Subject: converted maxlib to use libdir template, in preparations for debianizing it svn path=/trunk/externals/maxlib/; revision=13476 --- arraycopy.c | 284 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 284 insertions(+) create mode 100644 arraycopy.c (limited to 'arraycopy.c') diff --git a/arraycopy.c b/arraycopy.c new file mode 100644 index 0000000..ea5f61b --- /dev/null +++ b/arraycopy.c @@ -0,0 +1,284 @@ +/* ------------------------- arraycopy --------------------------------------- */ +/* */ +/* Copy data from one array to another . */ +/* Written by Olaf Matthes */ +/* 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 + +static char *version = "arraycopy v0.2, written by Olaf Matthes "; + +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 +} -- cgit v1.2.1