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-rw-r--r--src/iemlib2/sigLFO_noise.c122
1 files changed, 0 insertions, 122 deletions
diff --git a/src/iemlib2/sigLFO_noise.c b/src/iemlib2/sigLFO_noise.c
deleted file mode 100644
index 0547dfe..0000000
--- a/src/iemlib2/sigLFO_noise.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
-* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
-
-iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
-
-
-#include "m_pd.h"
-#include "iemlib.h"
-
-
-/* -------------------- LFO_noise~ --------------------- */
-/* ---- outputs a 2 point interpolated white noise ----- */
-/* -- with lower cutoff frequency than 0.5 samplerate -- */
-
-static t_class *sigLFO_noise_class;
-
-typedef struct _sigLFO_noise
-{
- t_object x_obj;
- double x_range;
- double x_rcp_range;
- unsigned int x_state;
- t_float x_fact;
- t_float x_incr;
- t_float x_y1;
- t_float x_y2;
- t_float x_phase;
-} t_sigLFO_noise;
-
-static int sigLFO_noise_makeseed(void)
-{
- static unsigned int sigLFO_noise_nextseed = 1489853723;
-
- sigLFO_noise_nextseed = sigLFO_noise_nextseed * 435898247 + 938284287;
- return(sigLFO_noise_nextseed & 0x7fffffff);
-}
-
-static float sigLFO_noise_new_rand(t_sigLFO_noise *x)
-{
- unsigned int state = x->x_state;
- double new_val, range = x->x_range;
-
- x->x_state = state = state * 472940017 + 832416023;
- new_val = range * ((double)state) * (1./4294967296.);
- if(new_val >= range)
- new_val = range-1;
- new_val -= 32767.0;
- return(new_val*(1.0/32767.0));
-}
-
-static void *sigLFO_noise_new(t_float freq)
-{
- t_sigLFO_noise *x = (t_sigLFO_noise *)pd_new(sigLFO_noise_class);
-
- x->x_range = 65535.0;
- x->x_rcp_range = (double)x->x_range * (1.0/4294967296.0);
- x->x_state = sigLFO_noise_makeseed();
- x->x_fact = 2. / 44100.0;
- x->x_incr = freq * x->x_fact;
- if(x->x_incr < 0.0)
- x->x_incr = 0.0;
- else if(x->x_incr > 0.1)
- x->x_incr = 0.1;
- x->x_y1 = sigLFO_noise_new_rand(x);
- x->x_y2 = sigLFO_noise_new_rand(x);
- x->x_phase = 0.0;
- outlet_new(&x->x_obj, gensym("signal"));
- return (x);
-}
-
-static t_int *sigLFO_noise_perform(t_int *w)
-{
- t_float *out = (t_float *)(w[1]);
- t_sigLFO_noise *x = (t_sigLFO_noise *)(w[2]);
- int n = (int)(w[3]);
- t_float phase = x->x_phase;
- t_float x_y1 = x->x_y1;
- t_float x_y2 = x->x_y2;
- t_float incr = x->x_incr;
-
- while(n--)
- {
- if(phase > 1.0)
- {
- x_y1 = x_y2;
- x_y2 = sigLFO_noise_new_rand(x);
- phase -= 1.0;
- }
- *out++ = (x_y2 - x_y1) * phase + x_y1;
- phase += incr;
- }
- x->x_phase = phase;
- x->x_y1 = x_y1;
- x->x_y2 = x_y2;
- return (w+4);
-}
-
-static void sigLFO_noise_float(t_sigLFO_noise *x, t_floatarg freq)
-{
- x->x_incr = freq * x->x_fact;
- if(x->x_incr < 0.0)
- x->x_incr = 0.0;
- else if(x->x_incr > 0.1)
- x->x_incr = 0.1;
-}
-
-static void sigLFO_noise_dsp(t_sigLFO_noise *x, t_signal **sp)
-{
- x->x_fact = 2. / sp[0]->s_sr;
- dsp_add(sigLFO_noise_perform, 3, sp[0]->s_vec, x, sp[0]->s_n);
-}
-
-void sigLFO_noise_setup(void)
-{
- sigLFO_noise_class = class_new(gensym("LFO_noise~"),
- (t_newmethod)sigLFO_noise_new, 0,
- sizeof(t_sigLFO_noise), 0, A_DEFFLOAT, 0);
- class_addmethod(sigLFO_noise_class, (t_method)sigLFO_noise_dsp,
- gensym("dsp"), 0);
- class_addfloat(sigLFO_noise_class, (t_method)sigLFO_noise_float);
- class_sethelpsymbol(sigLFO_noise_class, gensym("iemhelp/help-LFO_noise~"));
-}