diff options
| author | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2010-02-09 21:40:51 +0000 |
|---|---|---|
| committer | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2010-02-09 21:40:51 +0000 |
| commit | 6a9bc88d7b52fc35b9fe3597cd29d9fbe90387ee (patch) | |
| tree | a056eb4d6d3115bfa5d030c1899ef4bc1026df45 /wavewrap~.c | |
| parent | f9e3fe480e7e3c448a626d508f1976f4fec2f759 (diff) | |
updated to sigpack-0.04-win32.zip and committed forgotten debian files
svn path=/trunk/externals/sigpack/; revision=13154
Diffstat (limited to 'wavewrap~.c')
| -rw-r--r-- | wavewrap~.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/wavewrap~.c b/wavewrap~.c new file mode 100644 index 0000000..36fde56 --- /dev/null +++ b/wavewrap~.c @@ -0,0 +1,72 @@ +// sigpack
+// for
+// pure-data
+// by weiss
+// www.weiss-archiv.de
+
+#include "m_pd.h"
+#include <math.h>
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+#define M_PI 3.14159265358979323846
+
+// ------------------------ wavewrap~ -----------------------------
+// sinus wavewrapper. produces an unusual distortion effect
+// code from swh_plugins by steve harris www.plugin.org.uk
+
+static t_class *wavewrap_tilde_class;
+
+typedef struct _wavewrap_tilde
+{
+ t_object x_obj;
+ t_sample x_wrap;
+ float x_f;
+} t_wavewrap_tilde;
+
+static void *wavewrap_tilde_new(t_floatarg wrap)
+{
+ t_wavewrap_tilde *x = (t_wavewrap_tilde *)pd_new(wavewrap_tilde_class);
+ x->x_wrap = wrap;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_wrap);
+ x->x_f = 0;
+ if (wrap) x->x_wrap = wrap;
+ else x->x_wrap = 0;
+ return (x);
+}
+
+static t_int *wavewrap_tilde_perform(t_int *w)
+{
+ t_wavewrap_tilde *x = (t_wavewrap_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, value;
+ float coef = x->x_wrap * M_PI;
+ if (coef < 0.05f) {
+ coef = 0.05f;
+ }
+
+ while (n--)
+ {
+ f = *in++;
+ value = sin(f * coef);
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void wavewrap_tilde_dsp(t_wavewrap_tilde *x, t_signal **sp)
+{
+ dsp_add(wavewrap_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void wavewrap_tilde_setup(void)
+{
+ wavewrap_tilde_class = class_new(gensym("wavewrap~"), (t_newmethod)wavewrap_tilde_new, 0,
+ sizeof(t_wavewrap_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(wavewrap_tilde_class, t_wavewrap_tilde, x_f);
+ class_addmethod(wavewrap_tilde_class, (t_method)wavewrap_tilde_dsp, gensym("dsp"), 0);
+}
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