re-arranged into libdir and setup with the template Makefile+debian stuff. renabled vv+ and vv- as vvplus and vvminus

svn path=/trunk/externals/smlib/; revision=13158

1 files changed, 0 insertions, 123 deletions

diff --git a/source/bp.c b/source/bp.c
deleted file mode 100644
index d21bc19..0000000
--- a/source/bp.c
+++ /dev/null
@@ -1,123 +0,0 @@
-#include "defines.h"

-

-/*--------------- bp ---------------*/

-

-typedef struct bpctl

-{

-    float c_x1;

-    float c_x2;

-    float c_coef1;

-    float c_coef2;

-    float c_gain;

-} t_bpctl;

-

-typedef struct bp

-{

-    t_object x_obj;

-    float x_freq;

-    float x_q;

-    t_bpctl x_cspace;

-    t_bpctl *x_ctl;

-    float x_f;

-} t_bp;

-

-t_class *bp_class;

-

-static void bp_docoef(t_bp *x, t_floatarg f, t_floatarg q);

-

-static void *bp_new(t_floatarg f, t_floatarg q)

-{

-    t_bp *x = (t_bp *)pd_new(bp_class);

-    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("ft1"));

-    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("ft2"));

-    outlet_new(&x->x_obj, gensym("float"));

-    x->x_ctl = &x->x_cspace;

-    x->x_cspace.c_x1 = 0;

-    x->x_cspace.c_x2 = 0;

-    bp_docoef(x, f, q);

-    x->x_f = 0;

-    return (x);

-}

-

-static float bp_qcos(float f)

-{

-    if (f >= -(0.5f*3.14159f) && f <= 0.5f*3.14159f)

-    {

-    	float g = f*f;

-    	return (((g*g*g * (-1.0f/720.0f) + g*g*(1.0f/24.0f)) - g*0.5f) + 1);

-    }

-    else return (0);

-}

-

-static void bp_docoef(t_bp *x, t_floatarg f, t_floatarg q)

-{

-    float r, oneminusr, omega;

-    if (f < 0.0001f) f = 0.0001f;

-    if (q < 0) q = 0;

-    x->x_freq = f;

-    x->x_q = q;

-    omega = f * (2.0f * 3.14159f);

-    if (q < 0.001) oneminusr = 1.0f;

-    else oneminusr = omega/q;

-    if (oneminusr > 1.0f) oneminusr = 1.0f;

-    r = 1.0f - oneminusr;

-    x->x_ctl->c_coef1 = 2.0f * bp_qcos(omega) * r;

-    x->x_ctl->c_coef2 = - r * r;

-    x->x_ctl->c_gain = 2 * oneminusr * (oneminusr + r * omega);

-    /* post("r %f, omega %f, coef1 %f, coef2 %f",

-    	r, omega, x->x_ctl->c_coef1, x->x_ctl->c_coef2); */

-}

-

-static void bp_ft1(t_bp *x, t_floatarg f)

-{

-    bp_docoef(x, f, x->x_q);

-}

-

-static void bp_ft2(t_bp *x, t_floatarg q)

-{

-    bp_docoef(x, x->x_freq, q);

-}

-

-static void bp_clear(t_bp *x, t_floatarg q)

-{

-    x->x_ctl->c_x1 = x->x_ctl->c_x2 = 0;

-}

-

-static void bp_perform(t_bp *x, t_float in)

-{

-	float out;

-    t_bpctl *c = x->x_ctl;

-    float last = c->c_x1;

-    float prev = c->c_x2;

-    float coef1 = c->c_coef1;

-    float coef2 = c->c_coef2;

-    float gain = c->c_gain;

-

-	float output =  in + coef1 * last + coef2 * prev;

-   	out = gain * output;

-

-	prev = last;

-	last = output;

-

-	/* NAN protect */

-    if (!((last <= 0) || (last >= 0)))

-    	last = 0;

-    if (!((prev <= 0) || (prev >= 0)))

-    	prev = 0;

-    c->c_x1 = last;

-    c->c_x2 = prev;

-

-    outlet_float(x->x_obj.ob_outlet, out);

-}

-

-void bp_setup(void)

-{

-    bp_class = class_new(gensym("bp"), (t_newmethod)bp_new, 0,

-	sizeof(t_bp), 0, A_DEFFLOAT, A_DEFFLOAT, 0);

-    class_addfloat(bp_class, (t_method)bp_perform);

-    class_addmethod(bp_class, (t_method)bp_ft1,

-    	gensym("ft1"), A_FLOAT, 0);

-    class_addmethod(bp_class, (t_method)bp_ft2,

-    	gensym("ft2"), A_FLOAT, 0);

-    class_addmethod(bp_class, (t_method)bp_clear, gensym("clear"), 0);

-}