1 files changed, 62 insertions, 0 deletions
diff --git a/cyclone/sickle/avg.c b/cyclone/sickle/avg.c
new file mode 100644
index 0000000..2ad214a
--- /dev/null
+++ b/cyclone/sickle/avg.c
@@ -0,0 +1,62 @@
+/* Copyright (c) 2002-2003 krzYszcz and others.
+ * For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ * WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "m_pd.h"
+#include "sickle/sic.h"
+
+typedef struct _avg
+{
+    t_sic  x_sic;
+    float  x_count;
+    float  x_accum;
+} t_avg;
+
+static t_class *avg_class;
+
+static void avg_bang(t_avg *x)
+{
+    outlet_float(((t_object *)x)->ob_outlet,
+		 (x->x_count ? x->x_accum / x->x_count : 0));
+    x->x_count = 0;
+    x->x_accum = 0;
+}
+
+static t_int *avg_perform(t_int *w)
+{
+    t_avg *x = (t_avg *)(w[1]);
+    int nblock = (int)(w[2]);
+    t_float *in = (t_float *)(w[3]);
+    float accum = 0;
+    x->x_count += nblock;  /* LATER consider blockcount++ */
+    while (nblock--)
+    {
+	float f = *in++;
+    	accum += (f >= 0 ? f : -f);
+    }
+    x->x_accum += accum;
+    return (w + 4);
+}
+
+static void avg_dsp(t_avg *x, t_signal **sp)
+{
+    dsp_add(avg_perform, 3, x, sp[0]->s_n, sp[0]->s_vec);
+}
+
+static void *avg_new(void)
+{
+    t_avg *x = (t_avg *)pd_new(avg_class);
+    outlet_new((t_object *)x, &s_float);
+    x->x_count = 0;
+    x->x_accum = 0;
+    return (x);
+}
+
+void avg_tilde_setup(void)
+{
+    avg_class = class_new(gensym("avg~"),
+			  (t_newmethod)avg_new, 0,
+			  sizeof(t_avg), 0, 0);
+    sic_setup(avg_class, avg_dsp, SIC_FLOATTOSIGNAL);
+    class_addbang(avg_class, avg_bang);
+}