diff options
Diffstat (limited to 'source/decimate~.c')
-rw-r--r-- | source/decimate~.c | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/source/decimate~.c b/source/decimate~.c deleted file mode 100644 index 6468d20..0000000 --- a/source/decimate~.c +++ /dev/null @@ -1,76 +0,0 @@ -/* sIgpAck
- * for
- * pure-data
- * www.weiss-archiv.de */
-
-#include "m_pd.h"
-#ifdef _MSC_VER
-#pragma warning( disable : 4244 )
-#pragma warning( disable : 4305 )
-#endif
-
-// ------------------------ decimate~ -----------------------------
-// signal decimation
-// code from musicdsp.org posted by tobybear
-
-static t_class *decimate_tilde_class;
-
-typedef struct _decimate_tilde
-{
- t_object x_obj;
- t_sample x_rate;
- t_sample x_bits;
- float x_f;
-} t_decimate_tilde;
-
-static void *decimate_tilde_new(t_floatarg rate, t_floatarg bits)
-{
- t_decimate_tilde *x = (t_decimate_tilde *)pd_new(decimate_tilde_class);
- x->x_rate = rate;
- x->x_bits = bits;
- outlet_new(&x->x_obj, gensym("signal"));
- floatinlet_new(&x->x_obj, &x->x_rate);
- floatinlet_new(&x->x_obj, &x->x_bits);
- x->x_f = 0;
- if (rate) x->x_rate = rate;
- else x->x_rate = 0.5;
- if (bits) x->x_bits = bits;
- else x->x_bits = 16;
- return (x);
-}
-
-static t_int *decimate_tilde_perform(t_int *w)
-{
- t_decimate_tilde *x = (t_decimate_tilde *)(w[1]);
- t_float *in = (t_float *)(w[2]);
- t_float *out = (t_float *)(w[3]);
- int n = (int)(w[4]);
- float f;
- long int m=1<<(int)(x->x_bits-1);
- float y=0, cnt=0;
- while (n--)
- {
- f = *in++;
- cnt+=x->x_rate;
- if (cnt>=1)
- {
- cnt-=1;
- y=(long int)(f*m)/(float)m;
- }
- *out++ = y;
- }
- return (w+5);
-}
-
-static void decimate_tilde_dsp(t_decimate_tilde *x, t_signal **sp)
-{
- dsp_add(decimate_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
-}
-
-void decimate_tilde_setup(void)
-{
- decimate_tilde_class = class_new(gensym("decimate~"), (t_newmethod)decimate_tilde_new, 0,
- sizeof(t_decimate_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
- CLASS_MAINSIGNALIN(decimate_tilde_class, t_decimate_tilde, x_f);
- class_addmethod(decimate_tilde_class, (t_method)decimate_tilde_dsp, gensym("dsp"), 0);
-}
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