From 8c5d0621d0d305bb62997b4ad12af874ec253432 Mon Sep 17 00:00:00 2001 From: musil Date: Fri, 10 Mar 2006 03:05:55 +0000 Subject: initial check in svn path=/trunk/externals/iem/iem_tab/; revision=4683 --- src/tab_min_max.c | 153 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+) create mode 100644 src/tab_min_max.c (limited to 'src/tab_min_max.c') diff --git a/src/tab_min_max.c b/src/tab_min_max.c new file mode 100644 index 0000000..38657d6 --- /dev/null +++ b/src/tab_min_max.c @@ -0,0 +1,153 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */ + +#ifdef NT +#pragma warning( disable : 4244 ) +#pragma warning( disable : 4305 ) +#endif + + +#include "m_pd.h" +#include "iemlib.h" +#include "iem_tab.h" +#include +#include +#include + + +/* -------------------------- tab_min_max ------------------------------ */ + +typedef struct _tab_min_max +{ + t_object x_obj; + int x_size_src1; + int x_offset_src1; + float *x_beg_mem_src1; + t_symbol *x_sym_scr1; + void *x_bang_out; + void *x_min_out; + void *x_max_out; +} t_tab_min_max; + +static t_class *tab_min_max_class; + +static void tab_min_max_src(t_tab_min_max *x, t_symbol *s) +{ + x->x_sym_scr1 = s; +} + +static void tab_min_max_bang(t_tab_min_max *x) +{ + int i, n; + int ok_src; + t_float *vec_src; + t_float min=1.0e37, max=-1.0e37; + + ok_src = iem_tab_check_arrays(gensym("tab_min_max"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0); + + if(ok_src) + { + n = x->x_size_src1; + vec_src = x->x_beg_mem_src1; + if(n) + { + for(i=0; i max) + max = vec_src[i]; + if(vec_src[i] < min) + min = vec_src[i]; + } + outlet_float(x->x_max_out, max); + outlet_float(x->x_min_out, min); + outlet_bang(x->x_bang_out); + } + } +} + +static void tab_min_max_list(t_tab_min_max *x, t_symbol *s, int argc, t_atom *argv) +{ + int beg_src; + int i, n; + int ok_src; + t_float *vec_src; + t_float min=1.0e37, max=-1.0e37; + + if((argc >= 2) && + IS_A_FLOAT(argv,0) && + IS_A_FLOAT(argv,1)) + { + beg_src = (int)atom_getintarg(0, argc, argv); + n = (int)atom_getintarg(1, argc, argv); + if(beg_src < 0) + beg_src = 0; + if(n < 0) + n = 0; + + ok_src = iem_tab_check_arrays(gensym("tab_min_max"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n); + + if(ok_src) + { + vec_src = x->x_beg_mem_src1 + beg_src; + if(n) + { + for(i=0; i max) + max = vec_src[i]; + if(vec_src[i] < min) + min = vec_src[i]; + } + outlet_float(x->x_max_out, max); + outlet_float(x->x_min_out, min); + outlet_bang(x->x_bang_out); + } + } + } + else + { + post("tab_min_max-ERROR: list need 2 float arguments:"); + post(" source_offset + number_of_samples_to_calc_min_max"); + } +} + +static void tab_min_max_free(t_tab_min_max *x) +{ +} + +static void *tab_min_max_new(t_symbol *s, int argc, t_atom *argv) +{ + t_tab_min_max *x = (t_tab_min_max *)pd_new(tab_min_max_class); + t_symbol *src; + + if((argc >= 1) && + IS_A_SYMBOL(argv,0)) + { + src = (t_symbol *)atom_getsymbolarg(0, argc, argv); + } + else + { + post("tab_min_max-ERROR: need 1 symbol argument:"); + post(" source_array_name"); + return(0); + } + + x->x_sym_scr1 = src; + x->x_bang_out = outlet_new(&x->x_obj, &s_bang); + x->x_min_out = outlet_new(&x->x_obj, &s_float); + x->x_max_out = outlet_new(&x->x_obj, &s_float); + return(x); +} + +void tab_min_max_setup(void) +{ + tab_min_max_class = class_new(gensym("tab_min_max"), (t_newmethod)tab_min_max_new, (t_method)tab_min_max_free, + sizeof(t_tab_min_max), 0, A_GIMME, 0); + class_addbang(tab_min_max_class, (t_method)tab_min_max_bang); + class_addlist(tab_min_max_class, (t_method)tab_min_max_list); + class_addmethod(tab_min_max_class, (t_method)tab_min_max_src, gensym("src"), A_DEFSYMBOL, 0); + class_addmethod(tab_min_max_class, (t_method)tab_min_max_src, gensym("src1"), A_DEFSYMBOL, 0); + class_sethelpsymbol(tab_min_max_class, gensym("iemhelp2/tab_min_max-help")); +} -- cgit v1.2.1