renamed *_tilde.c-files to *~.c

svn path=/trunk/externals/zexy/; revision=2998

1 files changed, 0 insertions, 150 deletions

diff --git a/src/envrms_tilde.c b/src/envrms_tilde.c
deleted file mode 100644
index e9dc302..0000000
--- a/src/envrms_tilde.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/******************************************************
- *
- * zexy - implementation file
- *
- * copyleft (c) IOhannes m zmölnig
- *
- *   1999:forum::für::umläute:2004
- *
- *   institute of electronic music and acoustics (iem)
- *
- ******************************************************
- *
- * license: GNU General Public License v.2
- *
- ******************************************************/
-
-/* ---------------- envrms~ - simple envelope follower. ----------------- */
-/* this is exactly the same as msp's env~-object, but does not output dB but RMS !! */
-/* i found env~+dbtorms most inconvenient (and expensive...) */
-
-#include "zexy.h"
-#include <math.h>
-
-#define MAXOVERLAP 10
-#define MAXVSTAKEN 64
-
-t_class *sigenvrms_class;
-
-typedef struct sigenvrms
-{
-    t_object x_obj; 	    	    /* header */
-    void *x_outlet;		    /* a "float" outlet */
-    void *x_clock;		    /* a "clock" object */
-    float *x_buf;		    /* a Hanning window */
-    int x_phase;		    /* number of points since last output */
-    int x_period;		    /* requested period of output */
-    int x_realperiod;		    /* period rounded up to vecsize multiple */
-    int x_npoints;		    /* analysis window size in samples */
-    float x_result;		    /* result to output */
-    float x_sumbuf[MAXOVERLAP];	    /* summing buffer */
-} t_sigenvrms;
-
-static void sigenvrms_tick(t_sigenvrms *x);
-
-static void *sigenvrms_new(t_floatarg fnpoints, t_floatarg fperiod)
-{
-    int npoints = fnpoints;
-    int period = fperiod;
-    t_sigenvrms *x;
-    float *buf;
-    int i;
-
-    if (npoints < 1) npoints = 1024;
-    if (period < 1) period = npoints/2;
-    if (period < npoints / MAXOVERLAP + 1)
-	period = npoints / MAXOVERLAP + 1;
-    if (!(buf = getbytes(sizeof(float) * (npoints + MAXVSTAKEN))))
-    {
-	error("env: couldn't allocate buffer");
-	return (0);
-    }
-    x = (t_sigenvrms *)pd_new(sigenvrms_class);
-    x->x_buf = buf;
-    x->x_npoints = npoints;
-    x->x_phase = 0;
-    x->x_period = period;
-    for (i = 0; i < MAXOVERLAP; i++) x->x_sumbuf[i] = 0;
-    for (i = 0; i < npoints; i++)
-	buf[i] = (1. - cos((2 * 3.141592654 * i) / npoints))/npoints;
-    for (; i < npoints+MAXVSTAKEN; i++) buf[i] = 0;
-    x->x_clock = clock_new(x, (t_method)sigenvrms_tick);
-    x->x_outlet = outlet_new(&x->x_obj, gensym("float"));
-    return (x);
-}
-
-static t_int *sigenvrms_perform(t_int *w)
-{
-    t_sigenvrms *x = (t_sigenvrms *)(w[1]);
-    t_float *in = (t_float *)(w[2]);
-    int n = (int)(w[3]);
-    int count;
-    float *sump; 
-    in += n;
-    for (count = x->x_phase, sump = x->x_sumbuf;
-	count < x->x_npoints; count += x->x_realperiod, sump++)
-    {
-	float *hp = x->x_buf + count;
-	float *fp = in;
-	float sum = *sump;
-	int i;
-	
-	for (i = 0; i < n; i++)
-	{
-	    fp--;
-	    sum += *hp++ * (*fp * *fp);
-	}
-	*sump = sum;
-    }
-    sump[0] = 0;
-    x->x_phase -= n;
-    if (x->x_phase < 0)
-    {
-	x->x_result = x->x_sumbuf[0];
-	for (count = x->x_realperiod, sump = x->x_sumbuf;
-	    count < x->x_npoints; count += x->x_realperiod, sump++)
-		sump[0] = sump[1];
-	sump[0] = 0;
-	x->x_phase = x->x_realperiod - n;
-	clock_delay(x->x_clock, 0L);
-    }
-    return (w+4);
-}
-
-static void sigenvrms_dsp(t_sigenvrms *x, t_signal **sp)
-{
-    if (x->x_period % sp[0]->s_n) x->x_realperiod =
-	x->x_period + sp[0]->s_n - (x->x_period % sp[0]->s_n);
-    else x->x_realperiod = x->x_period;
-    dsp_add(sigenvrms_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
-    if (sp[0]->s_n > MAXVSTAKEN) bug("sigenvrms_dsp");
-}
-
-static void sigenvrms_tick(t_sigenvrms *x)	/* callback function for the clock */
-{
-    outlet_float(x->x_outlet, sqrtf(x->x_result));
-}
-
-static void sigenvrms_ff(t_sigenvrms *x)		/* cleanup on free */
-{
-    clock_free(x->x_clock);
-    freebytes(x->x_buf, (x->x_npoints + MAXVSTAKEN) * sizeof(float));
-}
-
-static void sigenvrms_help(void)
-{
-	post("envrms~\t:: envelope follower that does output rms instead of dB");
-}
-
-
-void envrms_tilde_setup(void)
-{
-    sigenvrms_class = class_new(gensym("envrms~"), (t_newmethod)sigenvrms_new,
-    	(t_method)sigenvrms_ff, sizeof(t_sigenvrms), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
-    class_addmethod(sigenvrms_class, nullfn, gensym("signal"), 0);
-    class_addmethod(sigenvrms_class, (t_method)sigenvrms_dsp, gensym("dsp"), 0);
-
-	class_addmethod(sigenvrms_class, (t_method)sigenvrms_help, gensym("help"), 0);
-	class_sethelpsymbol(sigenvrms_class, gensym("zexy/envrms~"));
-  zexy_register("envrms~");
-}