1 files changed, 78 insertions, 0 deletions
diff --git a/cyclone/sickle/minmax.c b/cyclone/sickle/minmax.c
new file mode 100644
index 0000000..5bd0e39
--- /dev/null
+++ b/cyclone/sickle/minmax.c
@@ -0,0 +1,78 @@
+/* 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 _minmax
+{
+    t_sic      x_sic;
+    t_float    x_min;
+    t_float    x_max;
+    t_outlet  *x_minout;
+    t_outlet  *x_maxout;
+} t_minmax;
+
+static t_class *minmax_class;
+
+static void minmax_bang(t_minmax *x)
+{
+    outlet_float(x->x_maxout, x->x_max);
+    outlet_float(x->x_minout, x->x_min);
+}
+
+static void minmax_reset(t_minmax *x)
+{
+    x->x_min = x->x_max = 0;  /* CHECKME */
+}
+
+static t_int *minmax_perform(t_int *w)
+{
+    t_minmax *x = (t_minmax *)(w[1]);
+    int nblock = (int)(w[2]);
+    t_float *in = (t_float *)(w[3]);
+    t_float *outmin = (t_float *)(w[4]);
+    t_float *outmax = (t_float *)(w[5]);
+    t_float fmin = x->x_min;
+    t_float fmax = x->x_max;
+    while (nblock--)
+    {
+	t_float f = *in++;
+	if (f < fmin) fmin = f;
+	else if (f > fmax) fmax = f;
+	*outmin++ = fmin;
+	*outmax++ = fmax;
+    }
+    x->x_min = fmin;
+    x->x_max = fmax;
+    return (w + 6);
+}
+
+static void minmax_dsp(t_minmax *x, t_signal **sp)
+{
+    dsp_add(minmax_perform, 5, x, sp[0]->s_n, sp[0]->s_vec,
+	    sp[1]->s_vec, sp[2]->s_vec);
+}
+
+static void *minmax_new(void)
+{
+    t_minmax *x = (t_minmax *)pd_new(minmax_class);
+    outlet_new((t_object *)x, &s_signal);
+    outlet_new((t_object *)x, &s_signal);
+    x->x_minout = outlet_new((t_object *)x, &s_float);
+    x->x_maxout = outlet_new((t_object *)x, &s_float);
+    minmax_reset(x);
+    return (x);
+}
+
+void minmax_tilde_setup(void)
+{
+    minmax_class = class_new(gensym("minmax~"),
+			     (t_newmethod)minmax_new, 0,
+			     sizeof(t_minmax), 0, 0);
+    sic_setup(minmax_class, minmax_dsp, SIC_FLOATTOSIGNAL);
+    class_addbang(minmax_class, minmax_bang);
+    class_addmethod(minmax_class, (t_method)minmax_reset,
+		    gensym("reset"), 0);
+}