diff options
Diffstat (limited to 'cyclone/sickle/bitand.c')
| -rw-r--r-- | cyclone/sickle/bitand.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/cyclone/sickle/bitand.c b/cyclone/sickle/bitand.c new file mode 100644 index 0000000..a7cfeb7 --- /dev/null +++ b/cyclone/sickle/bitand.c @@ -0,0 +1,144 @@ +/* Copyright (c) 2002-2003 krzYszcz and others. + * For information on usage and redistribution, and for a DISCLAIMER OF ALL + * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ + +/* FIXME find a way of setting a 32-bit mask in an argument */ + +#include "m_pd.h" +#include "unstable/forky.h" +#include "sickle/sic.h" + +typedef struct _bitand +{ + t_sic x_sic; + t_glist *x_glist; + t_int x_mask; /* set by a 'bits' message or a creation argument */ + int x_mode; + int x_convert1; +} t_bitand; + +static t_class *bitand_class; + +static t_int *bitand_perform(t_int *w) +{ + t_bitand *x = (t_bitand *)(w[1]); + int nblock = (int)(w[2]); + t_float *in1 = (t_float *)(w[3]); + t_float *in2 = (t_float *)(w[4]); + t_float *out = (t_float *)(w[5]); + t_int mask = x->x_mask; + switch (x->x_mode) + { + /* LATER think about performance */ + case 0: + /* CHECKED */ + while (nblock--) + { + t_int i = ((*(t_int *)(t_float *)in1++) & + (*(t_int *)(t_float *)in2++)); + *out++ = *(t_float *)&i; + } + break; + case 1: + /* CHECKED */ + while (nblock--) + { + t_int i = (((t_int)*in1++) & + ((t_int)*in2++)); + *out++ = (t_float)i; + } + break; + case 2: + /* CHECKED */ + while (nblock--) + { + t_int i = (*(t_int *)(t_float *)in1++) & ((t_int)*in2++); + *out++ = *(t_float *)&i; + } + break; + case 3: + /* CHECKED */ + while (nblock--) + { + t_int i = ((t_int)*in1++) & (*(t_int *)(t_float *)in2++); + *out++ = (t_float)i; + } + break; + } + return (w + 6); +} + +static t_int *bitand_perform_noin2(t_int *w) +{ + t_bitand *x = (t_bitand *)(w[1]); + int nblock = (int)(w[2]); + t_float *in = (t_float *)(w[3]); + t_float *out = (t_float *)(w[4]); + t_int mask = x->x_mask; + /* LATER think about performance */ + if (x->x_convert1) while (nblock--) + { + /* CHECKED */ + t_int i = ((t_int)*in++) & mask; + *out++ = (t_float)i; + } + else while (nblock--) + { + /* CHECKED */ + t_int i = (*(t_int *)(t_float *)in++) & mask; + *out++ = *(t_float *)&i; + } + return (w + 5); +} + +static void bitand_dsp(t_bitand *x, t_signal **sp) +{ + if (forky_hasfeeders((t_object *)x, x->x_glist, 1, 0)) + /* use the mask set by a second inlet's signal or float, + CHECKED (incompatible) second inlet's int is persistent */ + dsp_add(bitand_perform, 5, x, sp[0]->s_n, sp[0]->s_vec, + sp[1]->s_vec, sp[2]->s_vec); + else /* use the mask set by a 'bits' message or a creation argument */ + dsp_add(bitand_perform_noin2, 4, x, sp[0]->s_n, sp[0]->s_vec, + sp[1]->s_vec); +} + +static void bitand_bits(t_bitand *x, t_symbol *s, int ac, t_atom *av) +{ + x->x_mask = forky_getbitmask(ac, av); +} + +static void bitand_mode(t_bitand *x, t_floatarg f) +{ + int i = (int)f; + if (i < 0) + i = 0; /* CHECKED */ + else if (i > 3) + i = 3; /* CHECKED */ + x->x_mode = i; + x->x_convert1 = (x->x_mode == 1 || x->x_mode == 3); +} + +static void *bitand_new(t_floatarg f1, t_floatarg f2) +{ + t_bitand *x = (t_bitand *)pd_new(bitand_class); + x->x_glist = canvas_getcurrent(); + inlet_new((t_object *)x, (t_pd *)x, &s_signal, &s_signal); + outlet_new((t_object *)x, &s_signal); + x->x_mask = (t_int)f1; /* FIXME (how?) */ + bitand_mode(x, f2); + return (x); +} + +void bitand_tilde_setup(void) +{ + bitand_class = class_new(gensym("bitand~"), + (t_newmethod)bitand_new, 0, + sizeof(t_bitand), 0, + A_DEFFLOAT, A_DEFFLOAT, 0); + sic_setup(bitand_class, bitand_dsp, SIC_FLOATTOSIGNAL); + class_addmethod(bitand_class, (t_method)bitand_bits, + gensym("bits"), A_GIMME, 0); + class_addmethod(bitand_class, (t_method)bitand_mode, + gensym("mode"), A_FLOAT, 0); +} |