Add FS #10214. Initial commit of the original PDa code for the GSoC Pure Data plugin project of Wincent Balin. Stripped some non-sourcefiles and added a rockbox readme that needs a bit more info from Wincent. Is added to CATEGORIES and viewers, but not yet to SUBDIRS (ie doesn't build yet)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21044 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 138 insertions, 0 deletions

diff --git a/apps/plugins/pdbox/PDa/intern/phasor~.c b/apps/plugins/pdbox/PDa/intern/phasor~.c
new file mode 100644
index 0000000..b823286
--- /dev/null
+++ b/apps/plugins/pdbox/PDa/intern/phasor~.c
@@ -0,0 +1,138 @@
+
+#include <m_pd.h>
+#include <m_fixed.h>
+
+/* -------------------------- phasor~ ------------------------------ */
+static t_class *phasor_class;
+
+typedef struct _phasor
+{
+    t_object x_obj;
+    unsigned int x_phase;
+    t_sample x_conv;
+    t_sample x_f;	    /* scalar frequency */
+} t_phasor;
+
+static void *phasor_new(t_floatarg f)
+{
+    t_phasor *x = (t_phasor *)pd_new(phasor_class);
+    x->x_f = ftofix(f);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
+    x->x_phase = 0;
+    x->x_conv = 0;
+    outlet_new(&x->x_obj, gensym("signal"));
+    return (x);
+}
+
+static t_int *phasor_perform(t_int *w)
+{
+    t_phasor *x = (t_phasor *)(w[1]);
+    t_sample *in = (t_sample *)(w[2]);
+    t_sample *out = (t_sample *)(w[3]);
+    int n = (int)(w[4]);
+    unsigned int phase = x->x_phase;
+    int conv = x->x_conv;
+
+    while (n--) {
+	 phase+= mult(conv , (*in++));
+	 phase &= (itofix(1) - 1);
+	 *out++ = phase;
+    }
+    x->x_phase = phase;
+
+    return (w+5);
+}
+
+static void phasor_dsp(t_phasor *x, t_signal **sp)
+{
+    x->x_conv = ftofix(1000.)/sp[0]->s_sr;
+    x->x_conv = mult(x->x_conv + 500,ftofix(0.001));
+    dsp_add(phasor_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+
+static void phasor_ft1(t_phasor *x, t_float f)
+{
+    x->x_phase = ftofix(f);
+}
+
+void phasor_tilde_setup(void)
+{
+    phasor_class = class_new(gensym("phasor~"), (t_newmethod)phasor_new, 0,
+    	sizeof(t_phasor), 0, A_DEFFLOAT, 0);
+    CLASS_MAINSIGNALIN(phasor_class, t_phasor, x_f);
+    class_addmethod(phasor_class, (t_method)phasor_dsp, gensym("dsp"), 0);
+    class_addmethod(phasor_class, (t_method)phasor_ft1,
+    	gensym("ft1"), A_FLOAT, 0);
+    class_sethelpsymbol(phasor_class, gensym("osc~-help.pd"));
+}
+
+
+#include <m_pd.h>
+#include <m_fixed.h>
+
+/* -------------------------- phasor~ ------------------------------ */
+static t_class *phasor_class;
+
+typedef struct _phasor
+{
+    t_object x_obj;
+    unsigned int x_phase;
+    t_sample x_conv;
+    t_sample x_f;	    /* scalar frequency */
+} t_phasor;
+
+static void *phasor_new(t_floatarg f)
+{
+    t_phasor *x = (t_phasor *)pd_new(phasor_class);
+    x->x_f = ftofix(f);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
+    x->x_phase = 0;
+    x->x_conv = 0;
+    outlet_new(&x->x_obj, gensym("signal"));
+    return (x);
+}
+
+static t_int *phasor_perform(t_int *w)
+{
+    t_phasor *x = (t_phasor *)(w[1]);
+    t_sample *in = (t_sample *)(w[2]);
+    t_sample *out = (t_sample *)(w[3]);
+    int n = (int)(w[4]);
+    unsigned int phase = x->x_phase;
+    int conv = x->x_conv;
+
+    while (n--) {
+	 phase+= mult(conv , (*in++));
+	 phase &= (itofix(1) - 1);
+	 *out++ = phase;
+    }
+    x->x_phase = phase;
+
+    return (w+5);
+}
+
+static void phasor_dsp(t_phasor *x, t_signal **sp)
+{
+    x->x_conv = ftofix(1000.)/sp[0]->s_sr;
+    x->x_conv = mult(x->x_conv + 500,ftofix(0.001));
+    dsp_add(phasor_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+
+static void phasor_ft1(t_phasor *x, t_float f)
+{
+    x->x_phase = ftofix(f);
+}
+
+void phasor_tilde_setup(void)
+{
+    phasor_class = class_new(gensym("phasor~"), (t_newmethod)phasor_new, 0,
+    	sizeof(t_phasor), 0, A_DEFFLOAT, 0);
+    CLASS_MAINSIGNALIN(phasor_class, t_phasor, x_f);
+    class_addmethod(phasor_class, (t_method)phasor_dsp, gensym("dsp"), 0);
+    class_addmethod(phasor_class, (t_method)phasor_ft1,
+    	gensym("ft1"), A_FLOAT, 0);
+    class_sethelpsymbol(phasor_class, gensym("osc~-help.pd"));
+}
+