diff options
Diffstat (limited to 'src/pdf~.c')
| -rw-r--r-- | src/pdf~.c | 59 |
1 files changed, 34 insertions, 25 deletions
@@ -1,4 +1,4 @@ -/* +/* * pdf~: get the ProbabilityDensityFunction of a signal * * (c) 1999-2011 IOhannes m zmölnig, forum::für::umläute, institute of electronic music and acoustics (iem) @@ -7,12 +7,12 @@ * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License along * with this program. If not, see <http://www.gnu.org/licenses/>. */ @@ -23,8 +23,7 @@ static t_class *pdf_class; -typedef struct _pdf -{ +typedef struct _pdf { t_object x_obj; t_float *buf; @@ -37,7 +36,9 @@ static void clear_pdfbuf(t_pdf *x) int n = x->size; t_float *buf = x->buf; - while (n--) *buf++=0.; + while (n--) { + *buf++=0.; + } } static void pdf_bang(t_pdf *x) @@ -46,25 +47,32 @@ static void pdf_bang(t_pdf *x) t_float *buf = x->buf, max = 0; t_atom a[2]; - while (n--) if (max < *buf++) max = buf[-1]; + while (n--) if (max < *buf++) { + max = buf[-1]; + } n=x->size; buf = x->buf; - if (max==0.) max=1.; + if (max==0.) { + max=1.; + } max = 1./max; - while (n--) - { - SETFLOAT(a, *buf++*max); - SETFLOAT(a+1,x->size-n-1); - outlet_list(x->x_obj.ob_outlet, gensym("list"), 2, (t_atom*)&a); - } + while (n--) { + SETFLOAT(a, *buf++*max); + SETFLOAT(a+1,x->size-n-1); + outlet_list(x->x_obj.ob_outlet, gensym("list"), 2, (t_atom*)&a); + } } static void pdf_float(t_pdf *x, t_floatarg f) { - if (f) pdf_bang(x); else clear_pdfbuf(x); + if (f) { + pdf_bang(x); + } else { + clear_pdfbuf(x); + } } static t_int *pdf_perform(t_int *w) @@ -76,12 +84,11 @@ static t_int *pdf_perform(t_int *w) t_float *buf = x->buf; t_float halfsize = x->halfsize; - while (n--) - { - t_sample f = *in++; - int iindex = ((f + 1.0) * halfsize)+0.5; - buf[(iindex<0)?0:((iindex>=x->size)?x->size-1:iindex)]+=1.; - } + while (n--) { + t_sample f = *in++; + int iindex = ((f + 1.0) * halfsize)+0.5; + buf[(iindex<0)?0:((iindex>=x->size)?x->size-1:iindex)]+=1.; + } return (w+4); } @@ -102,14 +109,15 @@ static void *pdf_new(t_floatarg f) clear_pdfbuf(x); outlet_new(&x->x_obj, gensym("list")); - + return (x); } static void pdf_free(t_pdf *x) { - if(x->buf) + if(x->buf) { freebytes(x->buf, x->size*sizeof(*x->buf)); + } } static void pdf_tilde_helper(void) @@ -124,8 +132,9 @@ static void pdf_tilde_helper(void) void pdf_tilde_setup(void) { - pdf_class = class_new(gensym("pdf~"), (t_newmethod)pdf_new, (t_method)pdf_free, - sizeof(t_pdf), 0, A_DEFFLOAT, 0); + pdf_class = class_new(gensym("pdf~"), (t_newmethod)pdf_new, + (t_method)pdf_free, + sizeof(t_pdf), 0, A_DEFFLOAT, 0); class_addmethod(pdf_class, nullfn, gensym("signal"), 0); class_addmethod(pdf_class, (t_method)pdf_dsp, gensym("dsp"), 0); |