From 4d84d14ac1aa13958eaa2971b03f7f929a519105 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?= Date: Fri, 8 Feb 2008 13:00:32 +0000 Subject: reorganized svn path=/trunk/; revision=9400 --- desiredata/extra/loop~/loop~.c | 164 +++++++++++++++++++++++++++++++++++ desiredata/extra/loop~/makefile | 4 + desiredata/extra/loop~/test-loop~.pd | 58 +++++++++++++ 3 files changed, 226 insertions(+) create mode 100644 desiredata/extra/loop~/loop~.c create mode 100644 desiredata/extra/loop~/makefile create mode 100644 desiredata/extra/loop~/test-loop~.pd (limited to 'desiredata/extra/loop~') diff --git a/desiredata/extra/loop~/loop~.c b/desiredata/extra/loop~/loop~.c new file mode 100644 index 00000000..2f440030 --- /dev/null +++ b/desiredata/extra/loop~/loop~.c @@ -0,0 +1,164 @@ +/* loop~ -- loop generator for sampling */ + +/* Copyright 1997-1999 Miller Puckette. +Permission is granted to use this software for any purpose provided you +keep this copyright notice intact. + +THE AUTHOR AND HIS EMPLOYERS MAKE NO WARRANTY, EXPRESS OR IMPLIED, +IN CONNECTION WITH THIS SOFTWARE. + +This file is downloadable from http://www.crca.ucsd.edu/~msp . + +*/ + +#ifdef PD +#include "m_pd.h" +#endif + +typedef struct _loopctl +{ + double l_phase; + float l_invwindow; + float l_window; + int l_resync; +} t_loopctl; + +static void loopctl_run(t_loopctl *x, float *transposein, + float *windowin, float *rawout, float *windowout, int n) +{ + float window, invwindow; + double phase = x->l_phase; + if (x->l_resync) + { + window = *windowin; + if (window < 0) + { + if (window > -1) + window = -1; + invwindow = -1/window; + } + else + { + if (window < 1) + window = 1; + invwindow = 1/window; + } + x->l_resync = 0; + } + else + { + window = x->l_window; + phase = x->l_phase; + invwindow = x->l_invwindow; + } + while (n--) + { + double phaseinc = invwindow * *transposein++; + double newphase; + float nwind = *windowin++; + if (phaseinc >= 1 || phaseinc < 0) + phaseinc = 0; + newphase = phase + phaseinc; + if (newphase >= 1) + { + window = nwind; + if (window < 0) + { + if (window > -1) + window = -1; + invwindow = -1/window; + } + else + { + if (window < 1) + window = 1; + invwindow = 1/window; + } + newphase -= 1.; + } + phase = newphase; + *rawout++ = (float)phase; + *windowout++ = window; + } + x->l_invwindow = invwindow; + x->l_window = window; + x->l_phase = phase; +} + +static void loopctl_init(t_loopctl *x) +{ + x->l_window = 1; + x->l_invwindow = 1; + x->l_phase = 0; +} + +static void loopctl_set(t_loopctl *x, float val) +{ + if (val < 0 || val > 1) + val = 0; + x->l_phase = val; + x->l_resync = 1; +} + +#ifdef PD + +typedef struct _loop +{ + t_object x_obj; + t_float x_f; + t_loopctl x_loopctl; +} t_loop; + +static t_class *loop_class; + +static void *loop_new(void) +{ + t_loop *x = (t_loop *)pd_new(loop_class); + loopctl_init(&x->x_loopctl); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal); + outlet_new(&x->x_obj, gensym("signal")); + outlet_new(&x->x_obj, gensym("signal")); + return (x); +} + +static t_int *loop_perform(t_int *w) +{ + t_loopctl *ctl = (t_loopctl *)(w[1]); + t_float *in1 = (t_float *)(w[2]); + t_float *in2 = (t_float *)(w[3]); + t_float *out1 = (t_float *)(w[4]); + t_float *out2 = (t_float *)(w[5]); + int n = (int)(w[6]); + loopctl_run(ctl, in1, in2, out1, out2, n); + return (w+7); +} + +static void loop_dsp(t_loop *x, t_signal **sp) +{ + dsp_add(loop_perform, 6, + &x->x_loopctl, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec, + sp[0]->s_n); +} + +static void loop_set(t_loop *x, t_floatarg val) +{ + loopctl_set(&x->x_loopctl, val); +} + +static void loop_bang(t_loop *x) +{ + loopctl_set(&x->x_loopctl, 0); +} + +void loop_tilde_setup(void) +{ + loop_class = class_new(gensym("loop~"), (t_newmethod)loop_new, 0, + sizeof(t_loop), 0, 0); + class_addmethod(loop_class, (t_method)loop_dsp, gensym("dsp"), A_CANT, 0); + CLASS_MAINSIGNALIN(loop_class, t_loop, x_f); + class_addmethod(loop_class, (t_method)loop_set, gensym("set"), + A_DEFFLOAT, 0); + class_addbang(loop_class, loop_bang); +} + +#endif /* PD */ diff --git a/desiredata/extra/loop~/makefile b/desiredata/extra/loop~/makefile new file mode 100644 index 00000000..fd21f2b4 --- /dev/null +++ b/desiredata/extra/loop~/makefile @@ -0,0 +1,4 @@ +NAME=loop~ +CSYM=loop_tilde + +include ../makefile diff --git a/desiredata/extra/loop~/test-loop~.pd b/desiredata/extra/loop~/test-loop~.pd new file mode 100644 index 00000000..9966483d --- /dev/null +++ b/desiredata/extra/loop~/test-loop~.pd @@ -0,0 +1,58 @@ +#N canvas 33 0 680 609 12; +#X floatatom 52 262 0 0 0 0 - - -; +#X obj 261 346 print~; +#X msg 47 373 bang; +#X msg 274 313 bang; +#X obj 52 306 loop~; +#X floatatom 102 245 0 0 0 0 - - -; +#N canvas 0 0 450 300 graph1 0; +#X array array1 44100 float 0; +#X coords 0 10 44100 0 200 150 1; +#X restore 65 17 graph; +#X msg 43 204 \; array1 resize 44100; +#X obj 25 401 tabwrite~ array1; +#X msg 208 371 bang; +#X obj 176 402 tabwrite~ array1; +#X msg 194 261 bang; +#X obj 204 347 print~; +#X msg 217 314 bang; +#N canvas 0 0 450 300 graph1 0; +#X array array2 150000 float 0; +#X coords 0 1 150000 -1 200 150 1; +#X restore 332 398 graph; +#X msg 326 274 \; array2 resize 150000; +#X obj 103 529 tabread4~ array2; +#X obj 64 481 *~; +#X obj 107 581 dac~; +#X obj 105 552 hip~ 5; +#X obj 123 482 samphold~; +#X obj 102 506 +~; +#X floatatom 106 430 0 0 0 0 - - -; +#X obj 108 453 *~ 1000; +#X obj 312 215 soundfiler; +#X msg 330 170 read ../doc/sound/bell.aiff array2; +#X msg 330 193 read ../doc/sound/vocal.aiff array2; +#X connect 0 0 4 0; 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