1 files changed, 77 insertions, 0 deletions
diff --git a/cyclone/sickle/slide.c b/cyclone/sickle/slide.c
new file mode 100644
index 0000000..92001b2
--- /dev/null
+++ b/cyclone/sickle/slide.c
@@ -0,0 +1,77 @@
+/* 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"
+
+#define SLIDE_DEFUP  1.
+#define SLIDE_DEFDN  1.
+
+typedef struct _slide
+{
+    t_sic    x_sic;
+    t_float  x_last;
+} t_slide;
+
+static t_class *slide_class;
+
+static t_int *slide_perform(t_int *w)
+{
+    t_slide *x = (t_slide *)(w[1]);
+    int nblock = (int)(w[2]);
+    t_float *in1 = (t_float *)(w[3]);
+    t_float *in2 = (t_float *)(w[4]);
+    t_float *in3 = (t_float *)(w[5]);
+    t_float *out = (t_float *)(w[6]);
+    t_float last = x->x_last;
+    while (nblock--)
+    {
+    	float f = *in1++;
+	if (f > last)
+	{
+	    float up = *in2++;
+	    if (up > 1.)  /* CHECKED */
+		last += (f - last) / up;
+	    else
+		last = f;
+	    in3++;
+	}
+	else if (f < last)
+	{
+	    float dn = *in3++;
+	    if (dn > 1.)  /* CHECKED */
+		last += (f - last) / dn;
+	    else
+		last = f;
+	    in2++;
+	}
+	*out++ = last;
+    }
+    x->x_last = last;
+    return (w + 7);
+}
+
+static void slide_dsp(t_slide *x, t_signal **sp)
+{
+    dsp_add(slide_perform, 6, x, sp[0]->s_n,
+	    sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec);
+}
+
+static void *slide_new(t_symbol *s, int ac, t_atom *av)
+{
+    t_slide *x = (t_slide *)pd_new(slide_class);
+    sic_inlet((t_sic *)x, 1, SLIDE_DEFUP, 0, ac, av);
+    sic_inlet((t_sic *)x, 2, SLIDE_DEFDN, 1, ac, av);
+    outlet_new((t_object *)x, &s_signal);
+    x->x_last = 0;
+    return (x);
+}
+
+void slide_tilde_setup(void)
+{
+    slide_class = class_new(gensym("slide~"),
+			    (t_newmethod)slide_new, 0,
+			    sizeof(t_slide), 0, A_GIMME, 0);
+    sic_setup(slide_class, slide_dsp, SIC_FLOATTOSIGNAL);
+}