diff options
author | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2004-05-18 21:33:33 +0000 |
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committer | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2004-05-18 21:33:33 +0000 |
commit | 577ac6e80ff4f436fbd054291ed7dddbc31bd49a (patch) | |
tree | 6ec69b216dda68d7de38a5eba1851b9d4f1431e6 /src/iem_t3_lib/t3_metro.c |
This commit was generated by cvs2svn to compensate for changes in r1738,svn2git-root
which included commits to RCS files with non-trunk default branches.
svn path=/trunk/externals/iemlib/; revision=1739
Diffstat (limited to 'src/iem_t3_lib/t3_metro.c')
-rw-r--r-- | src/iem_t3_lib/t3_metro.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/iem_t3_lib/t3_metro.c b/src/iem_t3_lib/t3_metro.c new file mode 100644 index 0000000..b33ad7e --- /dev/null +++ b/src/iem_t3_lib/t3_metro.c @@ -0,0 +1,121 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iem_t3_lib written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2003 */ + +#ifdef NT +#pragma warning( disable : 4244 ) +#pragma warning( disable : 4305 ) +#endif + +#include "m_pd.h" +#include "iemlib.h" +#include <math.h> +#include <stdio.h> +#include <string.h> + +/* ------------------------ t3_metro ---------------------------- */ +static t_class *t3_metro_class; + +typedef struct _t3_metro +{ + t_object x_obj; + t_clock *x_clock; + double x_metrotime; + double x_ticks2ms; + double x_t3_bang; + int x_hit; + void *x_out_next; +} t_t3_metro; + +static void t3_metro_stop(t_t3_metro *x) +{ + clock_unset(x->x_clock); +} + +static void t3_metro_tick(t_t3_metro *x) +{ + double dticks; + int iticks; + + x->x_hit = 0; + outlet_float(x->x_out_next, x->x_metrotime); + outlet_float(x->x_obj.ob_outlet, x->x_t3_bang); + dticks = (x->x_metrotime + x->x_t3_bang)/x->x_ticks2ms; + iticks = (int)dticks; + x->x_t3_bang = (dticks - (double)iticks)*x->x_ticks2ms; + if(!x->x_hit) + clock_delay(x->x_clock, (double)iticks*x->x_ticks2ms); +} + +static void t3_metro_float(t_t3_metro *x, t_floatarg t3_bang) +{ + double dticks; + int iticks; + + if(t3_bang < 0) + t3_bang = 0; + dticks = (double)t3_bang/x->x_ticks2ms; + iticks = (int)dticks; + x->x_t3_bang = (dticks - (double)iticks)*x->x_ticks2ms; + clock_delay(x->x_clock, (double)iticks*x->x_ticks2ms); + x->x_hit = 1; +} + +static void t3_metro_start(t_t3_metro *x, t_floatarg f) +{ + t3_metro_float(x, f); + x->x_hit = 1; +} + +static void t3_metro_ft1(t_t3_metro *x, t_floatarg f) +{ + if(f < 0.01) f = 0.01; + x->x_metrotime = (double)f; +} + +static void t3_metro_list(t_t3_metro *x, t_symbol *s, int ac, t_atom *av) +{ + if((ac == 2)&&IS_A_FLOAT(av,0)&&IS_A_FLOAT(av,1)) + { + t3_metro_ft1(x, atom_getfloatarg(1, ac, av)); + t3_metro_float(x, atom_getfloatarg(0, ac, av)); + } +} + +static void t3_metro_free(t_t3_metro *x) +{ + clock_free(x->x_clock); +} + +static void *t3_metro_new(t_symbol *s, int ac, t_atom *av) +{ + t_t3_metro *x = (t_t3_metro *)pd_new(t3_metro_class); + + x->x_metrotime = 10.0; + x->x_t3_bang = 0.0; + x->x_hit = 0; + if((ac == 1)&&IS_A_FLOAT(av,0)) + { + t3_metro_ft1(x, atom_getfloatarg(0, ac, av)); + } + x->x_ticks2ms = 1000.0*(double)sys_getblksize()/(double)sys_getsr(); + x->x_clock = clock_new(x, (t_method)t3_metro_tick); + outlet_new(&x->x_obj, &s_float); + x->x_out_next = outlet_new(&x->x_obj, &s_float); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("ft1")); + return (x); +} + +void t3_metro_setup(void) +{ + t3_metro_class = class_new(gensym("t3_metro"), (t_newmethod)t3_metro_new, + (t_method)t3_metro_free, sizeof(t_t3_metro), 0, A_GIMME, 0); + class_addmethod(t3_metro_class, (t_method)t3_metro_stop, gensym("stop"), 0); + class_addmethod(t3_metro_class, (t_method)t3_metro_start, gensym("start"), A_FLOAT, 0); + class_addmethod(t3_metro_class, (t_method)t3_metro_ft1, gensym("ft1"), A_FLOAT, 0); + class_addfloat(t3_metro_class, (t_method)t3_metro_float); + class_addlist(t3_metro_class, (t_method)t3_metro_list); + class_sethelpsymbol(t3_metro_class, gensym("iemhelp/help-t3_metro")); +} + |