From a7e6303e3e7e87bf90b21821d2e419ed4799783c Mon Sep 17 00:00:00 2001 From: musil Date: Fri, 28 Jun 2013 17:25:22 +0000 Subject: initial check in of double precision library of iem svn path=/trunk/externals/iem/iem_dp/; revision=17167 --- src/max__.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100755 src/max__.c (limited to 'src/max__.c') diff --git a/src/max__.c b/src/max__.c new file mode 100755 index 0000000..6ce2125 --- /dev/null +++ b/src/max__.c @@ -0,0 +1,80 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iem_dp written by IOhannes m zmoelnig, Thomas Musil, Copyright (c) IEM KUG Graz Austria 1999 - 2007 */ +/* double precision library */ + +#include "m_pd.h" +#include "iemlib.h" +#include "iem_dp.h" + + +/* ------------------------ max_dp ---------------------------- */ +/* based on miller's max, which is part of pd, only with double precision */ + +static t_class *max_dp_class; + +typedef struct _max_dp +{ + t_object x_obj; + t_float x_coarse_left; + t_float x_fine_left; + t_float x_coarse_right; + t_float x_fine_right; + t_outlet *x_out_coarse; + t_outlet *x_out_fine; +} t_max_dp; + +static void max_dp_bang(t_max_dp *x) +{ + double dleft, dright; + + dleft = iem_dp_calc_sum(x->x_coarse_left, x->x_fine_left); + dright = iem_dp_calc_sum(x->x_coarse_right, x->x_fine_right); + if(dleft > dright) + { + outlet_float(x->x_out_fine, x->x_fine_left); + outlet_float(x->x_out_coarse, x->x_coarse_left); + } + else + { + outlet_float(x->x_out_fine, x->x_fine_right); + outlet_float(x->x_out_coarse, x->x_coarse_right); + } +} + +static void max_dp_float(t_max_dp *x, t_floatarg f) +{ + x->x_coarse_left = f; + max_dp_bang(x); +} + +static void *max_dp_new(t_symbol *s, int ac, t_atom *av) +{ + t_max_dp *x = (t_max_dp *)pd_new(max_dp_class); + + floatinlet_new(&x->x_obj, &x->x_fine_left); + floatinlet_new(&x->x_obj, &x->x_coarse_right); + floatinlet_new(&x->x_obj, &x->x_fine_right); + x->x_coarse_left = 0.0f; + x->x_fine_left = 0.0f; + if((ac > 0) && (IS_A_FLOAT(av, 0))) + x->x_coarse_right = atom_getfloatarg(0, ac, av); + else + x->x_coarse_right = 0.0f; + if((ac > 1) && (IS_A_FLOAT(av, 1))) + x->x_fine_right = atom_getfloatarg(1, ac, av); + else + x->x_fine_right = 0.0f; + x->x_out_coarse = outlet_new(&x->x_obj, &s_float); + x->x_out_fine = outlet_new(&x->x_obj, &s_float); + return (x); +} + +void max_dp_setup(void) +{ + max_dp_class = class_new(gensym("max__"), (t_newmethod)max_dp_new, 0, sizeof(t_max_dp), 0, A_GIMME, 0); + class_addcreator((t_newmethod)max_dp_new, gensym("max''"), A_GIMME, 0); + class_addbang(max_dp_class, max_dp_bang); + class_addfloat(max_dp_class, max_dp_float); +} -- cgit v1.2.1