1 files changed, 85 insertions, 0 deletions
diff --git a/cyclone/hammer/sustain.c b/cyclone/hammer/sustain.c
new file mode 100644
index 0000000..975e6aa
--- /dev/null
+++ b/cyclone/hammer/sustain.c
@@ -0,0 +1,85 @@
+/* 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 <string.h>
+#include "m_pd.h"
+
+#define SUSTAIN_NPITCHES  128
+
+typedef struct _sustain
+{
+    t_object       x_ob;
+    t_float        x_velocity;
+    int            x_switch;
+    unsigned char  x_pitches[SUSTAIN_NPITCHES];
+    t_outlet      *x_voutlet;
+} t_sustain;
+
+static t_class *sustain_class;
+
+static void sustain_float(t_sustain *x, t_float f)
+{
+    int pitch = (int)f;
+    if (pitch >= 0 && pitch < SUSTAIN_NPITCHES)
+    {
+	if (x->x_velocity || !x->x_switch)
+	{
+	    outlet_float(x->x_voutlet, x->x_velocity);
+	    outlet_float(((t_object *)x)->ob_outlet, pitch);
+	}
+	else x->x_pitches[pitch]++;
+    }
+}
+
+static void sustain_bang(t_sustain *x)
+{
+    int i;
+    unsigned char *pp;
+    for (i = 0, pp = x->x_pitches; i < SUSTAIN_NPITCHES; i++, pp++)
+    {
+	while (*pp)
+	{
+	    outlet_float(x->x_voutlet, 0);
+	    outlet_float(((t_object *)x)->ob_outlet, i);
+	    (*pp)--;
+	}
+    }
+}
+
+static void sustain_clear(t_sustain *x)
+{
+    memset(x->x_pitches, 0, sizeof(x->x_pitches));
+}
+
+static void sustain_ft2(t_sustain *x, t_floatarg f)
+{
+    int newstate = ((int)f != 0);
+    if (x->x_switch && !newstate) sustain_bang(x);
+    x->x_switch = newstate;
+}
+
+static void *sustain_new(void)
+{
+    t_sustain *x = (t_sustain *)pd_new(sustain_class);
+    x->x_velocity = 0;
+    x->x_switch = 0;
+    sustain_clear(x);
+    floatinlet_new((t_object *)x, &x->x_velocity);
+    inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft2"));
+    outlet_new((t_object *)x, &s_float);
+    x->x_voutlet = outlet_new((t_object *)x, &s_float);
+    return (x);
+}
+
+void sustain_setup(void)
+{
+    sustain_class = class_new(gensym("sustain"), 
+			      (t_newmethod)sustain_new,
+			      0,  /* CHECKED: no flushout */
+			      sizeof(t_sustain), 0, 0);
+    class_addfloat(sustain_class, sustain_float);
+    class_addbang(sustain_class, sustain_bang);
+    class_addmethod(sustain_class, (t_method)sustain_ft2,
+		    gensym("ft2"), A_FLOAT, 0);
+}