1 files changed, 71 insertions, 0 deletions
diff --git a/cyclone/sickle/frameaccum.c b/cyclone/sickle/frameaccum.c
new file mode 100644
index 0000000..6038ae5
--- /dev/null
+++ b/cyclone/sickle/frameaccum.c
@@ -0,0 +1,71 @@
+/* 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"
+#include "common/grow.h"
+#include "sickle/sic.h"
+
+#define FRAMEACCUM_INISIZE  512
+
+typedef struct _frameaccum
+{
+    t_sic     x_sic;
+    int       x_size;
+    t_float  *x_frame;
+    t_float   x_frameini[FRAMEACCUM_INISIZE];
+} t_frameaccum;
+
+static t_class *frameaccum_class;
+
+static t_int *frameaccum_perform(t_int *w)
+{
+    int nblock = (int)(w[1]);
+    t_float *frame = (t_float *)(w[2]);
+    t_float *in = (t_float *)(w[3]);
+    t_float *out = (t_float *)(w[4]);
+    while (nblock--) *out++ = (*frame++ += *in++);
+    return (w + 5);
+}
+
+static void frameaccum_dsp(t_frameaccum *x, t_signal **sp)
+{
+    int nblock = sp[0]->s_n;
+    if (nblock > x->x_size)
+	x->x_frame = grow_nodata(&nblock, &x->x_size, x->x_frame,
+				 FRAMEACCUM_INISIZE, x->x_frameini,
+				 sizeof(*x->x_frame));
+    memset(x->x_frame, 0, nblock * sizeof(*x->x_frame));  /* CHECKED */
+    dsp_add(frameaccum_perform, 4, nblock, x->x_frame,
+	    sp[0]->s_vec, sp[1]->s_vec);
+}
+
+static void frameaccum_free(t_frameaccum *x)
+{
+    if (x->x_frame != x->x_frameini)
+	freebytes(x->x_frame, x->x_size * sizeof(*x->x_frame));
+}
+
+static void *frameaccum_new(t_symbol *s, int ac, t_atom *av)
+{
+    t_frameaccum *x = (t_frameaccum *)pd_new(frameaccum_class);
+    int size;
+    x->x_size = FRAMEACCUM_INISIZE;
+    x->x_frame = x->x_frameini;
+    if ((size = sys_getblksize()) > FRAMEACCUM_INISIZE)
+	x->x_frame = grow_nodata(&size, &x->x_size, x->x_frame,
+				 FRAMEACCUM_INISIZE, x->x_frameini,
+				 sizeof(*x->x_frame));
+    outlet_new((t_object *)x, &s_signal);
+    return (x);
+}
+
+void frameaccum_tilde_setup(void)
+{
+    frameaccum_class = class_new(gensym("frameaccum~"),
+				 (t_newmethod)frameaccum_new,
+				 (t_method)frameaccum_free,
+				 sizeof(t_frameaccum), 0, 0);
+    sic_setup(frameaccum_class, frameaccum_dsp, SIC_FLOATTOSIGNAL);
+}