diff options
Diffstat (limited to 'iemlib2/src/exp_inc.c')
| -rw-r--r-- | iemlib2/src/exp_inc.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/iemlib2/src/exp_inc.c b/iemlib2/src/exp_inc.c new file mode 100644 index 0000000..e222071 --- /dev/null +++ b/iemlib2/src/exp_inc.c @@ -0,0 +1,132 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */ + +#include "m_pd.h" +#include "iemlib.h" + + +/* ------------------------ exp_inc ---------------------------- */ +/* ------- exponetial/linear-incremental-bang-counter ---------- */ + + +static t_class *exp_inc_class; + +typedef struct _exp_inc +{ + t_object x_obj; + t_float x_initialval; + t_float x_currentval; + t_float x_mulfactor; + t_float x_addincrement; + t_float x_min; + t_float x_max; +} t_exp_inc; + +static void exp_inc_bang(t_exp_inc *x) +{ + outlet_float(x->x_obj.ob_outlet, x->x_currentval); + x->x_currentval = x->x_currentval * x->x_mulfactor + x->x_addincrement; + if(x->x_currentval < x->x_min) + x->x_currentval = x->x_min; + if(x->x_currentval > x->x_max) + x->x_currentval = x->x_max; +} + +static void exp_inc_reset(t_exp_inc *x) +{ + x->x_currentval = x->x_initialval; + if(x->x_currentval < x->x_min) + x->x_currentval = x->x_min; + if(x->x_currentval > x->x_max) + x->x_currentval = x->x_max; +} + +static void exp_inc_float(t_exp_inc *x, t_floatarg f) +{ + x->x_initialval = (t_float)f; + x->x_currentval = x->x_initialval; + if(x->x_currentval < x->x_min) + x->x_currentval = x->x_min; + if(x->x_currentval > x->x_max) + x->x_currentval = x->x_max; +} + +static void exp_inc_ft1(t_exp_inc *x, t_floatarg f) +{ + x->x_mulfactor = 1.0 + 0.01*(t_float)f; +} + +static void exp_inc_ft2(t_exp_inc *x, t_floatarg f) +{ + x->x_addincrement = (t_float)f; +} + +static void exp_inc_ft3(t_exp_inc *x, t_floatarg f) +{ + x->x_min = (t_float)f; + if(x->x_currentval < x->x_min) + x->x_currentval = x->x_min; +} + +static void exp_inc_ft4(t_exp_inc *x, t_floatarg f) +{ + x->x_max = (t_float)f; + if(x->x_currentval > x->x_max) + x->x_currentval = x->x_max; +} + +static void exp_inc_list(t_exp_inc *x, t_symbol *s, int ac, t_atom *av) +{ + if((ac == 5)&&IS_A_FLOAT(av,0)&&IS_A_FLOAT(av,1)&&IS_A_FLOAT(av,2) + &&IS_A_FLOAT(av,3)&&IS_A_FLOAT(av,4)) + { + exp_inc_ft4(x, atom_getfloatarg(4, ac, av)); + exp_inc_ft3(x, atom_getfloatarg(3, ac, av)); + exp_inc_ft2(x, atom_getfloatarg(2, ac, av)); + exp_inc_ft1(x, atom_getfloatarg(1, ac, av)); + exp_inc_float(x, atom_getfloatarg(0, ac, av)); + } +} + +static void *exp_inc_new(t_symbol *s, int ac, t_atom *av) +{ + t_exp_inc *x = (t_exp_inc *)pd_new(exp_inc_class); + + x->x_currentval = 10.0; + x->x_mulfactor = 1.0; + x->x_addincrement = 0.0; + x->x_min = 0.0; + x->x_max = 1000.0; + if((ac == 5)&&IS_A_FLOAT(av,0)&&IS_A_FLOAT(av,1)&&IS_A_FLOAT(av,2) + &&IS_A_FLOAT(av,3)&&IS_A_FLOAT(av,4)) + { + exp_inc_ft4(x, atom_getfloatarg(4, ac, av)); + exp_inc_ft3(x, atom_getfloatarg(3, ac, av)); + exp_inc_ft2(x, atom_getfloatarg(2, ac, av)); + exp_inc_ft1(x, atom_getfloatarg(1, ac, av)); + exp_inc_float(x, atom_getfloatarg(0, ac, av)); + } + outlet_new(&x->x_obj, &s_float); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft3")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft4")); + return (x); +} + +void exp_inc_setup(void) +{ + exp_inc_class = class_new(gensym("exp_inc"), (t_newmethod)exp_inc_new, + 0, sizeof(t_exp_inc), 0, A_GIMME, 0); + class_addbang(exp_inc_class, exp_inc_bang); + class_addlist(exp_inc_class, (t_method)exp_inc_list); + class_addmethod(exp_inc_class, (t_method)exp_inc_reset, gensym("reset"), 0); + class_addfloat(exp_inc_class, (t_method)exp_inc_float); + class_addmethod(exp_inc_class, (t_method)exp_inc_ft1, gensym("ft1"), A_FLOAT, 0); + class_addmethod(exp_inc_class, (t_method)exp_inc_ft2, gensym("ft2"), A_FLOAT, 0); + class_addmethod(exp_inc_class, (t_method)exp_inc_ft3, gensym("ft3"), A_FLOAT, 0); + class_addmethod(exp_inc_class, (t_method)exp_inc_ft4, gensym("ft4"), A_FLOAT, 0); +// class_sethelpsymbol(exp_inc_class, gensym("iemhelp/help-exp_inc")); +} |