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-rw-r--r--src/iemlib1/para_bp2~.c418
1 files changed, 0 insertions, 418 deletions
diff --git a/src/iemlib1/para_bp2~.c b/src/iemlib1/para_bp2~.c
deleted file mode 100644
index 0cf7771..0000000
--- a/src/iemlib1/para_bp2~.c
+++ /dev/null
@@ -1,418 +0,0 @@
-/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
-* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
-
-iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
-
-#include "m_pd.h"
-#include "iemlib.h"
-#include <math.h>
-
-
-/* ---------- para_bp2~ - parametric bandpass 2. order ----------- */
-
-typedef struct _para_bp2_tilde
-{
- t_object x_obj;
- t_float wn1;
- t_float wn2;
- t_float a0;
- t_float a1;
- t_float a2;
- t_float b1;
- t_float b2;
- t_float sr;
- t_float cur_f;
- t_float cur_l;
- t_float cur_a;
- t_float cur_g;
- t_float delta_f;
- t_float delta_a;
- t_float delta_g;
- t_float end_f;
- t_float end_a;
- t_float end_g;
- t_float ticks_per_interpol_time;
- t_float rcp_ticks;
- t_float interpol_time;
- int ticks;
- int counter_f;
- int counter_a;
- int counter_g;
- int event_mask;
- void *x_debug_outlet;
- t_atom x_at[5];
- t_float x_msi;
-} t_para_bp2_tilde;
-
-t_class *para_bp2_tilde_class;
-
-static void para_bp2_tilde_calc(t_para_bp2_tilde *x)
-{
- t_float l, al, gal, l2, rcp;
-
- l = x->cur_l;
- l2 = l*l + 1.0f;
- al = l*x->cur_a;
- gal = al*x->cur_g;
- rcp = 1.0f/(al + l2);
- x->a0 = rcp*(l2 + gal);
- x->a1 = rcp*2.0f*(2.0f - l2);
- x->a2 = rcp*(l2 - gal);
- x->b1 = -x->a1;
- x->b2 = rcp*(al - l2);
-}
-
-static void para_bp2_tilde_dsp_tick(t_para_bp2_tilde *x)
-{
- if(x->event_mask)
- {
- t_float discriminant;
-
- if(x->counter_f)
- {
- t_float l, si, co;
-
- if(x->counter_f <= 1)
- {
- x->cur_f = x->end_f;
- x->counter_f = 0;
- x->event_mask &= 6;/*set event_mask_bit 0 = 0*/
- }
- else
- {
- x->counter_f--;
- x->cur_f *= x->delta_f;
- }
- l = x->cur_f * x->sr;
- if(l < 1.0e-20f)
- x->cur_l = 1.0e20f;
- else if(l > 1.57079632f)
- x->cur_l = 0.0f;
- else
- {
- si = sin(l);
- co = cos(l);
- x->cur_l = co/si;
- }
- }
- if(x->counter_a)
- {
- if(x->counter_a <= 1)
- {
- x->cur_a = x->end_a;
- x->counter_a = 0;
- x->event_mask &= 5;/*set event_mask_bit 1 = 0*/
- }
- else
- {
- x->counter_a--;
- x->cur_a *= x->delta_a;
- }
- }
- if(x->counter_g)
- {
- if(x->counter_g <= 1)
- {
- x->cur_g = x->end_g;
- x->counter_g = 0;
- x->event_mask &= 3;/*set event_mask_bit 2 = 0*/
- }
- else
- {
- x->counter_g--;
- x->cur_g *= x->delta_g;
- }
- }
-
- para_bp2_tilde_calc(x);
-
- /* stability check */
-
- discriminant = x->b1 * x->b1 + 4.0f * x->b2;
- if(x->b1 <= -1.9999996f)
- x->b1 = -1.9999996f;
- else if(x->b1 >= 1.9999996f)
- x->b1 = 1.9999996f;
-
- if(x->b2 <= -0.9999998f)
- x->b2 = -0.9999998f;
- else if(x->b2 >= 0.9999998f)
- x->b2 = 0.9999998f;
-
- if(discriminant >= 0.0f)
- {
- if(0.9999998f - x->b1 - x->b2 < 0.0f)
- x->b2 = 0.9999998f - x->b1;
- if(0.9999998f + x->b1 - x->b2 < 0.0f)
- x->b2 = 0.9999998f + x->b1;
- }
- }
-}
-
-static t_int *para_bp2_tilde_perform(t_int *w)
-{
- t_float *in = (t_float *)(w[1]);
- t_float *out = (t_float *)(w[2]);
- t_para_bp2_tilde *x = (t_para_bp2_tilde *)(w[3]);
- int i, n = (t_int)(w[4]);
- t_float wn0, wn1=x->wn1, wn2=x->wn2;
- t_float a0=x->a0, a1=x->a1, a2=x->a2;
- t_float b1=x->b1, b2=x->b2;
-
- para_bp2_tilde_dsp_tick(x);
- for(i=0; i<n; i++)
- {
- wn0 = *in++ + b1*wn1 + b2*wn2;
- *out++ = a0*wn0 + a1*wn1 + a2*wn2;
- wn2 = wn1;
- wn1 = wn0;
- }
- /* NAN protect */
- if(IEM_DENORMAL(wn2))
- wn2 = 0.0f;
- if(IEM_DENORMAL(wn1))
- wn1 = 0.0f;
-
- x->wn1 = wn1;
- x->wn2 = wn2;
- return(w+5);
-}
-/* yn0 = *out;
-xn0 = *in;
-*************
-yn0 = a0*xn0 + a1*xn1 + a2*xn2 + b1*yn1 + b2*yn2;
-yn2 = yn1;
-yn1 = yn0;
-xn2 = xn1;
-xn1 = xn0;
-*************************
-y/x = (a0 + a1*z-1 + a2*z-2)/(1 - b1*z-1 - b2*z-2);*/
-
-static t_int *para_bp2_tilde_perf8(t_int *w)
-{
- t_float *in = (t_float *)(w[1]);
- t_float *out = (t_float *)(w[2]);
- t_para_bp2_tilde *x = (t_para_bp2_tilde *)(w[3]);
- int i, n = (t_int)(w[4]);
- t_float wn[10];
- t_float a0=x->a0, a1=x->a1, a2=x->a2;
- t_float b1=x->b1, b2=x->b2;
-
- para_bp2_tilde_dsp_tick(x);
- wn[0] = x->wn2;
- wn[1] = x->wn1;
- for(i=0; i<n; i+=8, in+=8, out+=8)
- {
- wn[2] = in[0] + b1*wn[1] + b2*wn[0];
- out[0] = a0*wn[2] + a1*wn[1] + a2*wn[0];
- wn[3] = in[1] + b1*wn[2] + b2*wn[1];
- out[1] = a0*wn[3] + a1*wn[2] + a2*wn[1];
- wn[4] = in[2] + b1*wn[3] + b2*wn[2];
- out[2] = a0*wn[4] + a1*wn[3] + a2*wn[2];
- wn[5] = in[3] + b1*wn[4] + b2*wn[3];
- out[3] = a0*wn[5] + a1*wn[4] + a2*wn[3];
- wn[6] = in[4] + b1*wn[5] + b2*wn[4];
- out[4] = a0*wn[6] + a1*wn[5] + a2*wn[4];
- wn[7] = in[5] + b1*wn[6] + b2*wn[5];
- out[5] = a0*wn[7] + a1*wn[6] + a2*wn[5];
- wn[8] = in[6] + b1*wn[7] + b2*wn[6];
- out[6] = a0*wn[8] + a1*wn[7] + a2*wn[6];
- wn[9] = in[7] + b1*wn[8] + b2*wn[7];
- out[7] = a0*wn[9] + a1*wn[8] + a2*wn[7];
- wn[0] = wn[8];
- wn[1] = wn[9];
- }
- /* NAN protect */
- if(IEM_DENORMAL(wn[0]))
- wn[0] = 0.0f;
- if(IEM_DENORMAL(wn[1]))
- wn[1] = 0.0f;
-
- x->wn1 = wn[1];
- x->wn2 = wn[0];
- return(w+5);
-}
-
-static void para_bp2_tilde_ft4(t_para_bp2_tilde *x, t_floatarg t)
-{
- int i = (int)((x->ticks_per_interpol_time)*t);
-
- x->interpol_time = t;
- if(i <= 0)
- i = 1;
- x->ticks = i;
- x->rcp_ticks = 1.0f / (t_float)i;
-}
-
-static void para_bp2_tilde_ft3(t_para_bp2_tilde *x, t_floatarg l)
-{
- t_float g = exp(0.11512925465 * l);
-
- if(g != x->cur_g)
- {
- x->end_g = g;
- x->counter_g = x->ticks;
- x->delta_g = exp(log(g/x->cur_g)*x->rcp_ticks);
- x->event_mask |= 4;/*set event_mask_bit 2 = 1*/
- }
-}
-
-static void para_bp2_tilde_ft2(t_para_bp2_tilde *x, t_floatarg q)
-{
- t_float a;
-
- if(q <= 0.0f)
- q = 0.000001f;
- a = 1.0f/q;
- if(a != x->cur_a)
- {
- x->end_a = a;
- x->counter_a = x->ticks;
- x->delta_a = exp(log(a/x->cur_a)*x->rcp_ticks);
- x->event_mask |= 2;/*set event_mask_bit 1 = 1*/
- }
-}
-
-static void para_bp2_tilde_ft1(t_para_bp2_tilde *x, t_floatarg f)
-{
- if(f <= 0.0f)
- f = 0.000001f;
- if(f != x->cur_f)
- {
- x->end_f = f;
- x->counter_f = x->ticks;
- x->delta_f = exp(log(f/x->cur_f)*x->rcp_ticks);
- x->event_mask |= 1;/*set event_mask_bit 0 = 1*/
- }
-}
-
-static void para_bp2_tilde_print(t_para_bp2_tilde *x)
-{
- // post("fb1 = %g, fb2 = %g, ff1 = %g, ff2 = %g, ff3 = %g", x->b1, x->b2, x->a0, x->a1, x->a2);
- x->x_at[0].a_w.w_float = x->b1;
- x->x_at[1].a_w.w_float = x->b2;
- x->x_at[2].a_w.w_float = x->a0;
- x->x_at[3].a_w.w_float = x->a1;
- x->x_at[4].a_w.w_float = x->a2;
- outlet_list(x->x_debug_outlet, &s_list, 5, x->x_at);
-}
-
-static void para_bp2_tilde_dsp(t_para_bp2_tilde *x, t_signal **sp)
-{
- t_float si, co, f;
- int i, n=(int)sp[0]->s_n;
-
- x->sr = 3.14159265358979323846f / (t_float)(sp[0]->s_sr);
- x->ticks_per_interpol_time = 0.001f * (t_float)(sp[0]->s_sr) / (t_float)n;
- i = (int)((x->ticks_per_interpol_time)*(x->interpol_time));
- if(i <= 0)
- i = 1;
- x->ticks = i;
- x->rcp_ticks = 1.0f / (t_float)i;
- f = x->cur_f * x->sr;
- if(f < 1.0e-20f)
- x->cur_l = 1.0e20f;
- else if(f > 1.57079632f)
- x->cur_l = 0.0f;
- else
- {
- si = sin(f);
- co = cos(f);
- x->cur_l = co/si;
- }
- if(n&7)
- dsp_add(para_bp2_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
- else
- dsp_add(para_bp2_tilde_perf8, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
-}
-
-static void *para_bp2_tilde_new(t_symbol *s, int argc, t_atom *argv)
-{
- t_para_bp2_tilde *x = (t_para_bp2_tilde *)pd_new(para_bp2_tilde_class);
- int i;
- t_float si, co, f=0.0f, q=1.0f, l=0.0f, interpol=0.0f;
-
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2"));
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft3"));
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft4"));
- outlet_new(&x->x_obj, &s_signal);
- x->x_debug_outlet = outlet_new(&x->x_obj, &s_list);
- x->x_msi = 0;
-
- x->x_at[0].a_type = A_FLOAT;
- x->x_at[1].a_type = A_FLOAT;
- x->x_at[2].a_type = A_FLOAT;
- x->x_at[3].a_type = A_FLOAT;
- x->x_at[4].a_type = A_FLOAT;
-
- x->event_mask = 1;
- x->counter_f = 1;
- x->counter_a = 0;
- x->counter_g = 0;
- x->delta_f = 0.0f;
- x->delta_a = 0.0f;
- x->delta_g = 0.0f;
- x->interpol_time = 500.0f;
- x->wn1 = 0.0f;
- x->wn2 = 0.0f;
- x->a0 = 0.0f;
- x->a1 = 0.0f;
- x->a2 = 0.0f;
- x->b1 = 0.0f;
- x->b2 = 0.0f;
- x->sr = 3.14159265358979323846f / 44100.0f;
- x->cur_a = 1.0f;
- if((argc == 4)&&IS_A_FLOAT(argv,3)&&IS_A_FLOAT(argv,2)&&IS_A_FLOAT(argv,1)&&IS_A_FLOAT(argv,0))
- {
- f = (t_float)atom_getfloatarg(0, argc, argv);
- q = (t_float)atom_getfloatarg(1, argc, argv);
- l = (t_float)atom_getfloatarg(2, argc, argv);
- interpol = (t_float)atom_getfloatarg(3, argc, argv);
- }
- if(f <= 0.0f)
- f = 0.000001f;
- x->cur_f = f;
- f *= x->sr;
- if(f < 1.0e-20f)
- x->cur_l = 1.0e20f;
- else if(f > 1.57079632f)
- x->cur_l = 0.0f;
- else
- {
- si = sin(f);
- co = cos(f);
- x->cur_l = co/si;
- }
- if(q <= 0.0f)
- q = 0.000001f;
- x->cur_a = 1.0f/q;
- x->cur_g = exp(0.11512925465 * l);
- if(interpol <= 0.0f)
- interpol = 0.0f;
- x->interpol_time = interpol;
- x->ticks_per_interpol_time = 0.5f;
- i = (int)((x->ticks_per_interpol_time)*(x->interpol_time));
- if(i <= 0)
- i = 1;
- x->ticks = i;
- x->rcp_ticks = 1.0f / (t_float)i;
- x->end_f = x->cur_f;
- x->end_a = x->cur_a;
- x->end_g = x->cur_g;
- return(x);
-}
-
-void para_bp2_tilde_setup(void)
-{
- para_bp2_tilde_class = class_new(gensym("para_bp2~"), (t_newmethod)para_bp2_tilde_new,
- 0, sizeof(t_para_bp2_tilde), 0, A_GIMME, 0);
- CLASS_MAINSIGNALIN(para_bp2_tilde_class, t_para_bp2_tilde, x_msi);
- class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_dsp, gensym("dsp"), 0);
- class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_ft1, gensym("ft1"), A_FLOAT, 0);
- class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_ft2, gensym("ft2"), A_FLOAT, 0);
- class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_ft3, gensym("ft3"), A_FLOAT, 0);
- class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_ft4, gensym("ft4"), A_FLOAT, 0);
- class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_print, gensym("print"), 0);
- class_sethelpsymbol(para_bp2_tilde_class, gensym("iemhelp/help-para_bp2~"));
-}
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