From 0820e0eaaebc3a39c682fa7305032115bf266b5a Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Sun, 2 Oct 2011 01:28:08 +0000 Subject: removed 7 year old copies of the tilde objects in pd/extra/ svn path=/trunk/; revision=15437 --- externals/signal/expr~/vexp_if.c | 1223 -------------------------------------- 1 file changed, 1223 deletions(-) delete mode 100644 externals/signal/expr~/vexp_if.c (limited to 'externals/signal/expr~/vexp_if.c') diff --git a/externals/signal/expr~/vexp_if.c b/externals/signal/expr~/vexp_if.c deleted file mode 100644 index 526bd667..00000000 --- a/externals/signal/expr~/vexp_if.c +++ /dev/null @@ -1,1223 +0,0 @@ -/* - * jMax - * Copyright (C) 1994, 1995, 1998, 1999 by IRCAM-Centre Georges Pompidou, Paris, France. - * - * 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. - * - * See file LICENSE for further informations on licensing terms. - * - * 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 Max/ISPW by Miller Puckette. - * - * Authors: Maurizio De Cecco, Francois Dechelle, Enzo Maggi, Norbert Schnell. - * - */ - -/* "expr" was written by Shahrokh Yadegari c. 1989. -msp */ -/* "expr~" and "fexpr~" conversion by Shahrokh Yadegari c. 1999,2000 */ - -/* - * Feb 2002 - added access to variables - * multiple expression support - * new short hand forms for fexpr~ - * now $y or $y1 = $y1[-1] and $y2 = $y2[-1] - * --sdy - */ - -#include -#include -#include - -#include "vexp.h" - -static char *exp_version = "0.4"; - -extern struct ex_ex *ex_eval(struct expr *expr, struct ex_ex *eptr, - struct ex_ex *optr, int n); - -#ifdef PD -static t_class *expr_class; -static t_class *expr_tilde_class; -static t_class *fexpr_tilde_class; -#else /* MSP */ -void *expr_tilde_class; -#endif - - -/*------------------------- expr class -------------------------------------*/ - -extern int expr_donew(struct expr *expr, int ac, t_atom *av); - -/*#define EXPR_DEBUG*/ - -static void expr_bang(t_expr *x); -t_int *expr_perform(t_int *w); - - -static void -expr_list(t_expr *x, t_symbol *s, int argc, const fts_atom_t *argv) -{ - int i; - - if (argc > MAX_VARS) argc = MAX_VARS; - - for (i = 0; i < argc; i++) - { - if (argv[i].a_type == A_FLOAT) - { - if (x->exp_var[i].ex_type == ET_FI) - x->exp_var[i].ex_flt = argv[i].a_w.w_float; - else if (x->exp_var[i].ex_type == ET_II) - x->exp_var[i].ex_int = argv[i].a_w.w_float; - else if (x->exp_var[i].ex_type) - pd_error(x, "expr: type mismatch"); - } - else if (argv[i].a_type == A_SYMBOL) - { - if (x->exp_var[i].ex_type == ET_SI) - x->exp_var[i].ex_ptr = (char *)argv[i].a_w.w_symbol; - else if (x->exp_var[i].ex_type) - pd_error(x, "expr: type mismatch"); - } - } - expr_bang(x); -} - -static void -expr_flt(t_expr *x, t_float f, int in) -{ - if (in > MAX_VARS) - return; - - if (x->exp_var[in].ex_type == ET_FI) - x->exp_var[in].ex_flt = f; - else if (x->exp_var[in].ex_type == ET_II) - x->exp_var[in].ex_int = f; -} - -static t_class *exprproxy_class; - -typedef struct _exprproxy { - t_pd p_pd; - int p_index; - t_expr *p_owner; - struct _exprproxy *p_next; -} t_exprproxy; - -t_exprproxy *exprproxy_new(t_expr *owner, int indx); -void exprproxy_float(t_exprproxy *p, t_floatarg f); - -t_exprproxy * -exprproxy_new(t_expr *owner, int indx) -{ - t_exprproxy *x = (t_exprproxy *)pd_new(exprproxy_class); - x->p_owner = owner; - x->p_index = indx; - x->p_next = owner->exp_proxy; - owner->exp_proxy = x; - return (x); -} - -void -exprproxy_float(t_exprproxy *p, t_floatarg f) -{ - t_expr *x = p->p_owner; - int in = p->p_index; - - if (in > MAX_VARS) - return; - - if (x->exp_var[in].ex_type == ET_FI) - x->exp_var[in].ex_flt = f; - else if (x->exp_var[in].ex_type == ET_II) - x->exp_var[in].ex_int = f; -} - -/* method definitions */ -static void -expr_ff(t_expr *x) -{ - t_exprproxy *y; - int i; - - y = x->exp_proxy; - while (y) - { - x->exp_proxy = y->p_next; -#ifdef PD - pd_free(&y->p_pd); -#else /*MSP */ - /* SDY find out what needs to be called for MSP */ - -#endif - y = x->exp_proxy; - } - for (i = 0 ; i < x->exp_nexpr; i++); - if (x->exp_stack[i]) - fts_free(x->exp_stack[i]); -/* - * SDY free all the allocated buffers here for expr~ and fexpr~ - * check to see if there are others - */ - for (i = 0; i < MAX_VARS; i++) { - if (x->exp_p_var[i]) - fts_free(x->exp_p_var[i]); - if (x->exp_p_res[i]) - fts_free(x->exp_p_res[i]); - if (x->exp_tmpres[i]) - fts_free(x->exp_tmpres[i]); - } - - -} - -static void -expr_bang(t_expr *x) -{ - int i; - -#ifdef EXPR_DEBUG - { - struct ex_ex *eptr; - - for (i = 0, eptr = x->exp_var; ; eptr++, i++) - { - if (!eptr->ex_type) - break; - switch (eptr->ex_type) - { - case ET_II: - fprintf(stderr,"ET_II: %d \n", eptr->ex_int); - break; - - case ET_FI: - fprintf(stderr,"ET_FT: %f \n", eptr->ex_flt); - break; - - default: - fprintf(stderr,"oups\n"); - } - } - } -#endif - /* banging a signal or filter object means nothing */ - if (!IS_EXPR(x)) - return; - - for (i = x->exp_nexpr - 1; i > -1 ; i--) { - if (!ex_eval(x, x->exp_stack[i], &x->exp_res[i], 0)) { - /*fprintf(stderr,"expr_bang(error evaluation)\n"); */ - /* SDY now that we have mutiple ones, on error we should - * continue - return; - */ - } - switch(x->exp_res[i].ex_type) { - case ET_INT: - outlet_float(x->exp_outlet[i], - (t_float) x->exp_res[i].ex_int); - break; - - case ET_FLT: - outlet_float(x->exp_outlet[i], x->exp_res[i].ex_flt); - break; - - case ET_SYM: - /* CHANGE this will have to be taken care of */ - - default: - post("expr: bang: unrecognized result %ld\n", x->exp_res[i].ex_type); - } - } -} - -static t_expr * -#ifdef PD -expr_new(t_symbol *s, int ac, t_atom *av) -#else /* MSP */ -Nexpr_new(t_symbol *s, int ac, t_atom *av) -#endif -{ - struct expr *x; - int i, ninlet; - struct ex_ex *eptr; - t_atom fakearg; - int dsp_index; /* keeping track of the dsp inlets */ - - -/* - * SDY - we may need to call dsp_setup() in this function - */ - - if (!ac) - { - ac = 1; - av = &fakearg; - SETFLOAT(&fakearg, 0); - } - -#ifdef PD - /* - * figure out if we are expr, expr~, or fexpr~ - */ - if (!strcmp("expr", s->s_name)) { - x = (t_expr *)pd_new(expr_class); - SET_EXPR(x); - } else if (!strcmp("expr~", s->s_name)) { - x = (t_expr *)pd_new(expr_tilde_class); - SET_EXPR_TILDE(x); - } else if (!strcmp("fexpr~", s->s_name)) { - x = (t_expr *)pd_new(fexpr_tilde_class); - SET_FEXPR_TILDE(x); - } else { - post("expr_new: bad object name '%s'"); - /* assume expr */ - x = (t_expr *)pd_new(expr_class); - SET_EXPR(x); - } -#else /* MSP */ - /* for now assume an expr~ */ - x = (t_expr *)pd_new(expr_tilde_class); - SET_EXPR_TILDE(x); -#endif - - /* - * initialize the newly allocated object - */ - x->exp_proxy = 0; - x->exp_nivec = 0; - x->exp_nexpr = 0; - x->exp_error = 0; - for (i = 0; i < MAX_VARS; i++) { - x->exp_stack[i] = (struct ex_ex *)0; - x->exp_outlet[i] = (t_outlet *)0; - x->exp_res[i].ex_type = 0; - x->exp_res[i].ex_int = 0; - x->exp_p_res[i] = (t_float *)0; - x->exp_var[i].ex_type = 0; - x->exp_var[i].ex_int = 0; - x->exp_p_var[i] = (t_float *)0; - x->exp_tmpres[i] = (t_float *)0; - x->exp_vsize = 0; - } - x->exp_f = 0; /* save the control value to be transformed to signal */ - - - if (expr_donew(x, ac, av)) - { - pd_error(x, "expr: syntax error"); -/* -SDY the following coredumps why? - pd_free(&x->exp_ob.ob_pd); -*/ - return (0); - } - - ninlet = 1; - for (i = 0, eptr = x->exp_var; i < MAX_VARS ; i++, eptr++) - if (eptr->ex_type) { - ninlet = i + 1; - } - - /* - * create the new inlets - */ - for (i = 1, eptr = x->exp_var + 1, dsp_index=1; iex_type) - { - case 0: - /* nothing is using this inlet */ - if (i < ninlet) -#ifdef PD - floatinlet_new(&x->exp_ob, &eptr->ex_flt); -#else /* MSP */ - inlet_new(&x->exp_ob, "float"); -#endif - break; - - case ET_II: - case ET_FI: - p = exprproxy_new(x, i); -#ifdef PD - inlet_new(&x->exp_ob, &p->p_pd, &s_float, &s_float); -#else /* MSP */ - inlet_new(&x->exp_ob, "float"); -#endif - break; - - case ET_SI: -#ifdef PD - symbolinlet_new(&x->exp_ob, (t_symbol **)&eptr->ex_ptr); -#else /* MSP */ - inlet_new(&x->exp_ob, "symbol"); -#endif - break; - - case ET_XI: - case ET_VI: - if (!IS_EXPR(x)) { - dsp_index++; -#ifdef PD - inlet_new(&x->exp_ob, &x->exp_ob.ob_pd, - &s_signal, &s_signal); -#else /* MSP */ - inlet_new(&x->exp_ob, "signal"); -#endif - break; - } else - post("expr: internal error expr_new"); - default: - pd_error(x, "expr: bad type (%lx) inlet = %d\n", - eptr->ex_type, i + 1, 0, 0, 0); - break; - } - } - if (IS_EXPR(x)) { - for (i = 0; i < x->exp_nexpr; i++) - x->exp_outlet[i] = outlet_new(&x->exp_ob, 0); - } else { - for (i = 0; i < x->exp_nexpr; i++) - x->exp_outlet[i] = outlet_new(&x->exp_ob, - gensym("signal")); - x->exp_nivec = dsp_index; - } - /* - * for now assume a 64 sample size block but this may change once - * expr_dsp is called - */ - x->exp_vsize = 64; - for (i = 0; i < x->exp_nexpr; i++) { - x->exp_p_res[i] = fts_calloc(x->exp_vsize, sizeof (t_float)); - x->exp_tmpres[i] = fts_calloc(x->exp_vsize, sizeof (t_float)); - } - for (i = 0; i < MAX_VARS; i++) - x->exp_p_var[i] = fts_calloc(x->exp_vsize, sizeof (t_float)); - - return (x); -} - -t_int * -expr_perform(t_int *w) -{ - int i, j; - t_expr *x = (t_expr *)w[1]; - struct ex_ex res; - int n; - - /* sanity check */ - if (IS_EXPR(x)) { - post("expr_perform: bad x->exp_flags = %d", x->exp_flags); - abort(); - } - - if (x->exp_flags & EF_STOP) { - for (i = 0; i < x->exp_nexpr; i++) - memset(x->exp_res[i].ex_vec, 0, - x->exp_vsize * sizeof (float)); - return (w + 2); - } - - if (IS_EXPR_TILDE(x)) { - /* - * if we have only one expression, we can right on - * on the output directly, otherwise we have to copy - * the data because, outputs could be the same buffer as - * inputs - */ - if ( x->exp_nexpr == 1) - ex_eval(x, x->exp_stack[0], &x->exp_res[0], 0); - else { - res.ex_type = ET_VEC; - for (i = 0; i < x->exp_nexpr; i++) { - res.ex_vec = x->exp_tmpres[i]; - ex_eval(x, x->exp_stack[i], &res, 0); - } - n = x->exp_vsize * sizeof(t_float); - for (i = 0; i < x->exp_nexpr; i++) - memcpy(x->exp_res[i].ex_vec, x->exp_tmpres[i], - n); - } - return (w + 2); - } - - if (!IS_FEXPR_TILDE(x)) { - post("expr_perform: bad x->exp_flags = %d - expecting fexpr", - x->exp_flags); - return (w + 2); - } - /* - * since the output buffer could be the same as one of the inputs - * we need to keep the output in a different buffer - */ - for (i = 0; i < x->exp_vsize; i++) for (j = 0; j < x->exp_nexpr; j++) { - res.ex_type = 0; - res.ex_int = 0; - ex_eval(x, x->exp_stack[j], &res, i); - switch (res.ex_type) { - case ET_INT: - x->exp_tmpres[j][i] = (t_float) res.ex_int; - break; - case ET_FLT: - x->exp_tmpres[j][i] = res.ex_flt; - break; - default: - post("expr_perform: bad result type %d", res.ex_type); - } - } - /* - * copy inputs and results to the save buffers - * inputs need to be copied first as the output buffer can be - * same as an input buffer - */ - n = x->exp_vsize * sizeof(t_float); - for (i = 0; i < MAX_VARS; i++) - if (x->exp_var[i].ex_type == ET_XI) - memcpy(x->exp_p_var[i], x->exp_var[i].ex_vec, n); - for (i = 0; i < x->exp_nexpr; i++) { - memcpy(x->exp_p_res[i], x->exp_tmpres[i], n); - memcpy(x->exp_res[i].ex_vec, x->exp_tmpres[i], n); - } - return (w + 2); -} - -static void -expr_dsp(t_expr *x, t_signal **sp) -{ - int i, nv; - int newsize; - - x->exp_error = 0; /* reset all errors */ - newsize = (x->exp_vsize != sp[0]->s_n); - x->exp_vsize = sp[0]->s_n; /* record the vector size */ - for (i = 0; i < x->exp_nexpr; i++) { - x->exp_res[i].ex_type = ET_VEC; - x->exp_res[i].ex_vec = sp[x->exp_nivec + i]->s_vec; - } - for (i = 0, nv = 0; i < MAX_VARS; i++) - /* - * the first inlet is always a signal - * - * SDY We are warning the user till this limitation - * is taken away from pd - */ - if (!i || x->exp_var[i].ex_type == ET_VI || - x->exp_var[i].ex_type == ET_XI) { - if (nv >= x->exp_nivec) { - post("expr_dsp int. err nv = %d, x->exp_nive = %d", - nv, x->exp_nivec); - abort(); - } - x->exp_var[i].ex_vec = sp[nv]->s_vec; - nv++; - } - /* we always have one inlet but we may not use it */ - if (nv != x->exp_nivec && (nv != 0 || x->exp_nivec != 1)) { - post("expr_dsp internal error 2 nv = %d, x->exp_nive = %d", - nv, x->exp_nivec); - abort(); - } - - dsp_add(expr_perform, 1, (t_int *) x); - - /* - * The buffer are now being allocated for expr~ and fexpr~ - * because if we have more than one expression we need the - * temporary buffers, The save buffers are not really needed - if (!IS_FEXPR_TILDE(x)) - return; - */ - /* - * if we have already allocated the buffers and we have a - * new size free all the buffers - */ - if (x->exp_p_res[0]) { - if (!newsize) - return; - /* - * if new size, reallocate all the previous buffers for fexpr~ - */ - for (i = 0; i < x->exp_nexpr; i++) { - fts_free(x->exp_p_res[i]); - fts_free(x->exp_tmpres[i]); - } - for (i = 0; i < MAX_VARS; i++) - fts_free(x->exp_p_var[i]); - - } - for (i = 0; i < x->exp_nexpr; i++) { - x->exp_p_res[i] = fts_calloc(x->exp_vsize, sizeof (t_float)); - x->exp_tmpres[i] = fts_calloc(x->exp_vsize, sizeof (t_float)); - } - for (i = 0; i < MAX_VARS; i++) - x->exp_p_var[i] = fts_calloc(x->exp_vsize, sizeof (t_float)); -} - -/* - * expr_verbose -- toggle the verbose switch - */ -static void -expr_verbose(t_expr *x) -{ - if (x->exp_flags & EF_VERBOSE) { - x->exp_flags &= ~EF_VERBOSE; - post ("verbose off"); - } else { - x->exp_flags |= EF_VERBOSE; - post ("verbose on"); - } -} - -/* - * expr_start -- turn on expr processing for now only used for fexpr~ - */ -static void -expr_start(t_expr *x) -{ - x->exp_flags &= ~EF_STOP; -} - -/* - * expr_stop -- turn on expr processing for now only used for fexpr~ - */ -static void -expr_stop(t_expr *x) -{ - x->exp_flags |= EF_STOP; -} -static void -fexpr_set_usage(void) -{ - post("fexpr~: set val ..."); - post("fexpr~: set {xy}[#] val ..."); -} - -/* - * fexpr_tilde_set -- set previous values of the buffers - * set val val ... - sets the first elements of output buffers - * set x val ... - sets the elements of the first input buffer - * set x# val ... - sets the elements of the #th input buffers - * set y val ... - sets the elements of the first output buffer - * set y# val ... - sets the elements of the #th output buffers - */ -static void -fexpr_tilde_set(t_expr *x, t_symbol *s, int argc, t_atom *argv) -{ - t_symbol *sx; - int vecno; - int i, nargs; - - if (!argc) - return; - sx = atom_getsymbolarg(0, argc, argv); - switch(sx->s_name[0]) { - case 'x': - if (!sx->s_name[1]) - vecno = 0; - else { - vecno = atoi(sx->s_name + 1); - if (!vecno) { - post("fexpr~.set: bad set x vector number"); - fexpr_set_usage(); - return; - } - if (vecno >= MAX_VARS) { - post("fexpr~.set: no more than %d inlets", - MAX_VARS); - return; - } - vecno--; - } - if (x->exp_var[vecno].ex_type != ET_XI) { - post("fexpr~-set: no signal at inlet %d", vecno + 1); - return; - } - nargs = argc - 1; - if (!nargs) { - post("fexpr~-set: no argument to set"); - return; - } - if (nargs > x->exp_vsize) { - post("fexpr~.set: %d set values larger than vector size(%d)", - nargs, x->exp_vsize); - post("fexpr~.set: only the first %d values will be set", - x->exp_vsize); - nargs = x->exp_vsize; - } - for (i = 0; i < nargs; i++) { - x->exp_p_var[vecno][x->exp_vsize - i - 1] = - atom_getfloatarg(i + 1, argc, argv); - } - return; - case 'y': - if (!sx->s_name[1]) - vecno = 0; - else { - vecno = atoi(sx->s_name + 1); - if (!vecno) { - post("fexpr~.set: bad set y vector number"); - fexpr_set_usage(); - return; - } - vecno--; - } - if (vecno >= x->exp_nexpr) { - post("fexpr~.set: only %d outlets", x->exp_nexpr); - return; - } - nargs = argc - 1; - if (!nargs) { - post("fexpr~-set: no argument to set"); - return; - } - if (nargs > x->exp_vsize) { - post("fexpr~-set: %d set values larger than vector size(%d)", - nargs, x->exp_vsize); - post("fexpr~.set: only the first %d values will be set", - x->exp_vsize); - nargs = x->exp_vsize; - } - for (i = 0; i < nargs; i++) { - x->exp_p_res[vecno][x->exp_vsize - i - 1] = - atom_getfloatarg(i + 1, argc, argv); - } - return; - case 0: - if (argc > x->exp_nexpr) { - post("fexpr~.set: only %d outlets available", - x->exp_nexpr); - post("fexpr~.set: the extra set values are ignored"); - } - for (i = 0; i < x->exp_nexpr && i < argc; i++) - x->exp_p_res[i][x->exp_vsize - 1] = - atom_getfloatarg(i, argc, argv); - return; - default: - fexpr_set_usage(); - return; - } - return; -} - -/* - * fexpr_tilde_clear - clear the past buffers - */ -static void -fexpr_tilde_clear(t_expr *x, t_symbol *s, int argc, t_atom *argv) -{ - t_symbol *sx; - int vecno; - int i, nargs; - - /* - * if no arguement clear all input and output buffers - */ - if (!argc) { - for (i = 0; i < x->exp_nexpr; i++) - memset(x->exp_p_res[i], 0, x->exp_vsize*sizeof(float)); - for (i = 0; i < MAX_VARS; i++) - if (x->exp_var[i].ex_type == ET_XI) - memset(x->exp_p_var[i], 0, - x->exp_vsize*sizeof(float)); - return; - } - if (argc > 1) { - post("fexpr~ usage: 'clear' or 'clear {xy}[#]'"); - return; - } - - sx = atom_getsymbolarg(0, argc, argv); - switch(sx->s_name[0]) { - case 'x': - if (!sx->s_name[1]) - vecno = 0; - else { - vecno = atoi(sx->s_name + 1); - if (!vecno) { - post("fexpr~.clear: bad clear x vector number"); - return; - } - if (vecno >= MAX_VARS) { - post("fexpr~.clear: no more than %d inlets", - MAX_VARS); - return; - } - vecno--; - } - if (x->exp_var[vecno].ex_type != ET_XI) { - post("fexpr~-clear: no signal at inlet %d", vecno + 1); - return; - } - memset(x->exp_p_var[vecno], 0, x->exp_vsize*sizeof(float)); - return; - case 'y': - if (!sx->s_name[1]) - vecno = 0; - else { - vecno = atoi(sx->s_name + 1); - if (!vecno) { - post("fexpr~.clear: bad clear y vector number"); - return; - } - vecno--; - } - if (vecno >= x->exp_nexpr) { - post("fexpr~.clear: only %d outlets", x->exp_nexpr); - return; - } - memset(x->exp_p_res[vecno], 0, x->exp_vsize*sizeof(float)); - return; - return; - default: - post("fexpr~ usage: 'clear' or 'clear {xy}[#]'"); - return; - } - return; -} - -#ifdef PD - -void -expr_setup(void) -{ - /* - * expr initialization - */ - expr_class = class_new(gensym("expr"), (t_newmethod)expr_new, - (t_method)expr_ff, sizeof(t_expr), 0, A_GIMME, 0); - class_addlist(expr_class, expr_list); - exprproxy_class = class_new(gensym("exprproxy"), 0, - 0, sizeof(t_exprproxy), CLASS_PD, 0); - class_addfloat(exprproxy_class, exprproxy_float); - - /* - * expr~ initialization - */ - expr_tilde_class = class_new(gensym("expr~"), (t_newmethod)expr_new, - (t_method)expr_ff, sizeof(t_expr), 0, A_GIMME, 0); - class_addmethod(expr_tilde_class, nullfn, gensym("signal"), 0); - CLASS_MAINSIGNALIN(expr_tilde_class, t_expr, exp_f); - class_addmethod(expr_tilde_class,(t_method)expr_dsp, gensym("dsp"), 0); - class_sethelpsymbol(expr_tilde_class, gensym("expr")); - /* - * fexpr~ initialization - */ - fexpr_tilde_class = class_new(gensym("fexpr~"), (t_newmethod)expr_new, - (t_method)expr_ff, sizeof(t_expr), 0, A_GIMME, 0); - class_addmethod(fexpr_tilde_class, nullfn, gensym("signal"), 0); - class_addmethod(fexpr_tilde_class,(t_method)expr_start, - gensym("start"), 0); - class_addmethod(fexpr_tilde_class,(t_method)expr_stop, - gensym("stop"), 0); - - class_addmethod(fexpr_tilde_class,(t_method)expr_dsp,gensym("dsp"), 0); - class_addmethod(fexpr_tilde_class, (t_method)fexpr_tilde_set, - gensym("set"), A_GIMME, 0); - class_addmethod(fexpr_tilde_class, (t_method)fexpr_tilde_clear, - gensym("clear"), A_GIMME, 0); - class_addmethod(fexpr_tilde_class,(t_method)expr_verbose, - gensym("verbose"), 0); - class_sethelpsymbol(fexpr_tilde_class, gensym("expr")); - - - - post("expr, expr~, fexpr~ version %s under GNU General Public License ", exp_version); - -} - -void -expr_tilde_setup(void) -{ - expr_setup(); -} - -void -fexpr_tilde_setup(void) -{ - expr_setup(); -} -#else /* MSP */ -void -main(void) -{ - setup((t_messlist **)&expr_tilde_class, (method)Nexpr_new, - (method)expr_ff, (short)sizeof(t_expr), 0L, A_GIMME, 0); - addmess((method)expr_dsp, "dsp", A_CANT, 0); // dsp method - dsp_initclass(); -} -#endif - - -/* -- the following functions use Pd internals and so are in the "if" file. */ - - -int -ex_getsym(char *p, fts_symbol_t *s) -{ - *s = gensym(p); - return (0); -} - -const char * -ex_symname(fts_symbol_t s) -{ - return (fts_symbol_name(s)); -} - -/* - * max_ex_tab -- evaluate this table access - * eptr is the name of the table and arg is the index we - * have to put the result in optr - * return 1 on error and 0 otherwise - * - * Arguments: - * the expr object - * table - * the argument - * the result pointer - */ -int -max_ex_tab(struct expr *expr, fts_symbol_t s, struct ex_ex *arg, - struct ex_ex *optr) -{ -#ifdef PD - t_garray *garray; - int size, indx; - t_float *vec; - - if (!s || !(garray = (t_garray *)pd_findbyclass(s, garray_class)) || - !garray_getfloatarray(garray, &size, &vec)) - { - optr->ex_type = ET_FLT; - optr->ex_flt = 0; - pd_error(expr, "no such table '%s'", s->s_name); - return (1); - } - optr->ex_type = ET_FLT; - - switch (arg->ex_type) { - case ET_INT: - indx = arg->ex_int; - break; - case ET_FLT: - /* strange interpolation code deleted here -msp */ - indx = arg->ex_flt; - break; - - default: /* do something with strings */ - pd_error(expr, "expr: bad argument for table '%s'\n", fts_symbol_name(s)); - indx = 0; - } - if (indx < 0) indx = 0; - else if (indx >= size) indx = size - 1; - optr->ex_flt = vec[indx]; -#else /* MSP */ - /* - * table lookup not done for MSP yet - */ - post("max_ex_tab: not complete for MSP yet!"); - optr->ex_type = ET_FLT; - optr->ex_flt = 0; -#endif - return (0); -} - -int -max_ex_var(struct expr *expr, fts_symbol_t var, struct ex_ex *optr) -{ - optr->ex_type = ET_FLT; - if (value_getfloat(var, &(optr->ex_flt))) { - optr->ex_type = ET_FLT; - optr->ex_flt = 0; - pd_error(expr, "no such var '%s'", var->s_name); - return (1); - } - return (0); -} - -#ifdef PD /* this goes to the end of this file as the following functions - * should be defined in the expr object in MSP - */ -#define ISTABLE(sym, garray, size, vec) \ -if (!sym || !(garray = (t_garray *)pd_findbyclass(sym, garray_class)) || \ - !garray_getfloatarray(garray, &size, &vec)) { \ - optr->ex_type = ET_FLT; \ - optr->ex_int = 0; \ - error("no such table '%s'", sym->s_name); \ - return; \ -} - -/* - * ex_size -- find the size of a table - */ -void -ex_size(t_expr *e, long int argc, struct ex_ex *argv, struct ex_ex *optr) -{ - t_symbol *s; - t_garray *garray; - int size; - t_float *vec; - - if (argv->ex_type != ET_SYM) - { - post("expr: size: need a table name\n"); - optr->ex_type = ET_INT; - optr->ex_int = 0; - return; - } - - s = (fts_symbol_t ) argv->ex_ptr; - - ISTABLE(s, garray, size, vec); - - optr->ex_type = ET_INT; - optr->ex_int = size; -} - -/* - * ex_sum -- calculate the sum of all elements of a table - */ - -void -ex_sum(t_expr *e, long int argc, struct ex_ex *argv, struct ex_ex *optr) -{ - t_symbol *s; - t_garray *garray; - int size; - t_float *vec, sum; - int indx; - - if (argv->ex_type != ET_SYM) - { - post("expr: sum: need a table name\n"); - optr->ex_type = ET_INT; - optr->ex_int = 0; - return; - } - - s = (fts_symbol_t ) argv->ex_ptr; - - ISTABLE(s, garray, size, vec); - - for (indx = 0, sum = 0; indx < size; indx++) - sum += vec[indx]; - - optr->ex_type = ET_FLT; - optr->ex_flt = sum; -} - - -/* - * ex_Sum -- calculate the sum of table with the given boundries - */ - -void -ex_Sum(t_expr *e, long int argc, struct ex_ex *argv, struct ex_ex *optr) -{ - t_symbol *s; - t_garray *garray; - int size; - t_float *vec, sum; - int indx, n1, n2; - - if (argv->ex_type != ET_SYM) - { - post("expr: sum: need a table name\n"); - optr->ex_type = ET_INT; - optr->ex_int = 0; - return; - } - - s = (fts_symbol_t ) argv->ex_ptr; - - ISTABLE(s, garray, size, vec); - - if (argv->ex_type != ET_INT || argv[1].ex_type != ET_INT) - { - post("expr: Sum: boundries have to be fix values\n"); - optr->ex_type = ET_INT; - optr->ex_int = 0; - return; - } - n1 = argv->ex_int; - n2 = argv[1].ex_int; - - for (indx = n1, sum = 0; indx < n2; indx++) - if (indx >= 0 && indx < size) - sum += vec[indx]; - - optr->ex_type = ET_FLT; - optr->ex_flt = sum; -} - -/* - * ex_avg -- calculate the avarage of a table - */ - -void -ex_avg(t_expr *e, long int argc, struct ex_ex *argv, struct ex_ex *optr) -{ -/* SDY - look into this function */ -#if 0 - fts_symbol_t s; - fts_integer_vector_t *tw = 0; - - if (argv->ex_type != ET_SYM) - { - post("expr: avg: need a table name\n"); - optr->ex_type = ET_INT; - optr->ex_int = 0; - } - - s = (fts_symbol_t ) argv->ex_ptr; - - tw = table_integer_vector_get_by_name(s); - - if (tw) - { - optr->ex_type = ET_INT; - - if (! fts_integer_vector_get_size(tw)) - optr->ex_int = 0; - else - optr->ex_int = fts_integer_vector_get_sum(tw) / fts_integer_vector_get_size(tw); - } - else - { - optr->ex_type = ET_INT; - optr->ex_int = 0; - post("expr: avg: no such table %s\n", fts_symbol_name(s)); - } -#endif -} - - -/* - * ex_Avg -- calculate the avarage of table with the given boundries - */ - -void -ex_Avg(t_expr *e, long int argc, struct ex_ex *argv, struct ex_ex *optr) -{ -/* SDY - look into this function */ -#if 0 - fts_symbol_t s; - fts_integer_vector_t *tw = 0; - - if (argv->ex_type != ET_SYM) - { - post("expr: Avg: need a table name\n"); - optr->ex_type = ET_INT; - optr->ex_int = 0; - } - - s = (fts_symbol_t ) (argv++)->ex_ptr; - - tw = table_integer_vector_get_by_name(s); - - if (! tw) - { - optr->ex_type = ET_INT; - optr->ex_int = 0; - post("expr: Avg: no such table %s\n", fts_symbol_name(s)); - return; - } - - if (argv->ex_type != ET_INT || argv[1].ex_type != ET_INT) - { - post("expr: Avg: boundries have to be fix values\n"); - optr->ex_type = ET_INT; - optr->ex_int = 0; - return; - } - - optr->ex_type = ET_INT; - - if (argv[1].ex_int - argv->ex_int <= 0) - optr->ex_int = 0; - else - optr->ex_int = (fts_integer_vector_get_sub_sum(tw, argv->ex_int, argv[1].ex_int) / - (argv[1].ex_int - argv->ex_int)); -#endif -} - -/* - * ex_store -- store a value in a table - * if the index is greater the size of the table, - * we will make a modulo the size of the table - */ - -void -ex_store(t_expr *e, long int argc, struct ex_ex *argv, struct ex_ex *optr) -{ -/* SDY - look into this function */ -#if 0 - fts_symbol_t s; - fts_integer_vector_t *tw = 0; - - if (argv->ex_type != ET_SYM) - { - post("expr: store: need a table name\n"); - } - - s = (fts_symbol_t ) (argv++)->ex_ptr; - - tw = table_integer_vector_get_by_name(s); - - if (! tw) - { - optr->ex_type = ET_INT; - optr->ex_int = 0; - post("expr: store: no such table %s\n", fts_symbol_name(s)); - return; - } - - if (argv->ex_type != ET_INT || argv[1].ex_type != ET_INT) - { - post("expr: store: arguments have to be integer\n"); - optr->ex_type = ET_INT; - optr->ex_int = 0; - } - - fts_integer_vector_set_element(tw, argv->ex_int < 0 ? 0 : argv->ex_int % fts_integer_vector_get_size(tw), argv[1].ex_int); - *optr = argv[1]; -#endif -} - -#else /* MSP */ - -void -pd_error(void *object, char *fmt, ...) -{ - va_list ap; - t_int arg[8]; - int i; - static int saidit = 0; - va_start(ap, fmt); -/* SDY - vsprintf(error_string, fmt, ap); - */ post(fmt, ap); - va_end(ap); -/* SDY - fprintf(stderr, "error: %s\n", error_string); - error_object = object; -*/ - if (!saidit) - { - post("... you might be able to track this down from the Find menu."); - saidit = 1; - } -} -#endif -- cgit v1.2.1