1 files changed, 0 insertions, 125 deletions

diff --git a/apps/plugins/pdbox/PDa/intern/biquad~.c b/apps/plugins/pdbox/PDa/intern/biquad~.c
index c37182a911..2dc6d72071 100644
--- a/apps/plugins/pdbox/PDa/intern/biquad~.c
+++ b/apps/plugins/pdbox/PDa/intern/biquad~.c
@@ -124,129 +124,4 @@ void biquad_tilde_setup(void)
     class_addmethod(sigbiquad_class, (t_method)sigbiquad_set, gensym("clear"),
         A_GIMME, 0);
 }
-#include <m_pd.h>
-#include <m_fixed.h>
-
-typedef struct biquadctl
-{
-    t_sample c_x1;
-    t_sample c_x2;
-    t_sample c_fb1;
-    t_sample c_fb2;
-    t_sample c_ff1;
-    t_sample c_ff2;
-    t_sample c_ff3;
-} t_biquadctl;
-
-typedef struct sigbiquad
-{
-    t_object x_obj;
-    float x_f;
-    t_biquadctl x_cspace;
-    t_biquadctl *x_ctl;
-} t_sigbiquad;
-
-t_class *sigbiquad_class;
-
-static void sigbiquad_list(t_sigbiquad *x, t_symbol *s, int argc, t_atom *argv);
 
-static void *sigbiquad_new(t_symbol *s, int argc, t_atom *argv)
-{
-    t_sigbiquad *x = (t_sigbiquad *)pd_new(sigbiquad_class);
-    outlet_new(&x->x_obj, gensym("signal"));
-    x->x_ctl = &x->x_cspace;
-    x->x_cspace.c_x1 = x->x_cspace.c_x2 = 0;
-    sigbiquad_list(x, s, argc, argv);
-    x->x_f = 0;
-    return (x);
-}
-
-static t_int *sigbiquad_perform(t_int *w)
-{
-    t_sample *in = (t_sample *)(w[1]);
-    t_sample *out = (t_sample *)(w[2]);
-    t_biquadctl *c = (t_biquadctl *)(w[3]);
-    int n = (t_int)(w[4]);
-    int i;
-    t_sample last = c->c_x1;
-    t_sample prev = c->c_x2;
-    t_sample fb1 = c->c_fb1;
-    t_sample fb2 = c->c_fb2;
-    t_sample ff1 = c->c_ff1;
-    t_sample ff2 = c->c_ff2;
-    t_sample ff3 = c->c_ff3;
-    for (i = 0; i < n; i++)
-    {
-        t_sample output =  *in++ + mult(fb1,last) + mult(fb2,prev);
-        if (PD_BADFLOAT(output))
-            output = 0; 
-        *out++ = mult(ff1,output) + mult(ff2,last) + mult(ff3,prev);
-        prev = last;
-        last = output;
-    }
-    c->c_x1 = last;
-    c->c_x2 = prev;
-    return (w+5);
-}
-
-static void sigbiquad_list(t_sigbiquad *x, t_symbol *s, int argc, t_atom *argv)
-{
-    float fb1 = atom_getfloatarg(0, argc, argv);
-    float fb2 = atom_getfloatarg(1, argc, argv);
-    float ff1 = atom_getfloatarg(2, argc, argv);
-    float ff2 = atom_getfloatarg(3, argc, argv);
-    float ff3 = atom_getfloatarg(4, argc, argv);
-    float discriminant = fb1 * fb1 + 4 * fb2;
-    t_biquadctl *c = x->x_ctl;
-    if (discriminant < 0) /* imaginary roots -- resonant filter */
-    {
-            /* they're conjugates so we just check that the product
-            is less than one */
-        if (fb2 >= -1.0f) goto stable;
-    }
-    else    /* real roots */
-    {
-            /* check that the parabola 1 - fb1 x - fb2 x^2 has a
-                vertex between -1 and 1, and that it's nonnegative
-                at both ends, which implies both roots are in [1-,1]. */
-        if (fb1 <= 2.0f && fb1 >= -2.0f &&
-            1.0f - fb1 -fb2 >= 0 && 1.0f + fb1 - fb2 >= 0)
-                goto stable;
-    }
-        /* if unstable, just bash to zero */
-    fb1 = fb2 = ff1 = ff2 = ff3 = 0;
-stable:
-    c->c_fb1 = ftofix(fb1);
-    c->c_fb2 = ftofix(fb2);
-    c->c_ff1 = ftofix(ff1);
-    c->c_ff2 = ftofix(ff2);
-    c->c_ff3 = ftofix(ff3);
-}
-
-static void sigbiquad_set(t_sigbiquad *x, t_symbol *s, int argc, t_atom *argv)
-{
-    t_biquadctl *c = x->x_ctl;
-    c->c_x1 = atom_getfloatarg(0, argc, argv);
-    c->c_x2 = atom_getfloatarg(1, argc, argv);
-}
-
-static void sigbiquad_dsp(t_sigbiquad *x, t_signal **sp)
-{
-    dsp_add(sigbiquad_perform, 4,
-        sp[0]->s_vec, sp[1]->s_vec, 
-            x->x_ctl, sp[0]->s_n);
-
-}
-
-void biquad_tilde_setup(void)
-{
-    sigbiquad_class = class_new(gensym("biquad~"), (t_newmethod)sigbiquad_new,
-        0, sizeof(t_sigbiquad), 0, A_GIMME, 0);
-    CLASS_MAINSIGNALIN(sigbiquad_class, t_sigbiquad, x_f);
-    class_addmethod(sigbiquad_class, (t_method)sigbiquad_dsp, gensym("dsp"), 0);
-    class_addlist(sigbiquad_class, sigbiquad_list);
-    class_addmethod(sigbiquad_class, (t_method)sigbiquad_set, gensym("set"),
-        A_GIMME, 0);
-    class_addmethod(sigbiquad_class, (t_method)sigbiquad_set, gensym("clear"),
-        A_GIMME, 0);
-}