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, 104 insertions, 0 deletions

diff --git a/apps/plugins/pdbox/PDa/intern/dbtopow~.c b/apps/plugins/pdbox/PDa/intern/dbtopow~.c
new file mode 100644
index 0000000000..92ba76d550
--- /dev/null
+++ b/apps/plugins/pdbox/PDa/intern/dbtopow~.c
@@ -0,0 +1,104 @@
+#include <m_pd.h>
+#include <m_fixed.h>
+
+#define LOGTEN 2.302585092994
+
+typedef struct dbtopow_tilde
+{
+    t_object x_obj;
+    float x_f;
+} t_dbtopow_tilde;
+
+t_class *dbtopow_tilde_class;
+
+static void *dbtopow_tilde_new(void)
+{
+    t_dbtopow_tilde *x = (t_dbtopow_tilde *)pd_new(dbtopow_tilde_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *dbtopow_tilde_perform(t_int *w)
+{
+    float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    for (; n--; in++, out++)
+    {
+        float f = *in;
+        if (f <= 0) *out = 0;
+        else
+        {
+            if (f > 870)
+                f = 870;
+            *out = exp((LOGTEN * 0.1) * (f-100.));
+        }
+    }
+    return (w + 4);
+}
+
+static void dbtopow_tilde_dsp(t_dbtopow_tilde *x, t_signal **sp)
+{
+    post("warning: %s not usable yet",__FUNCTION__);
+    dsp_add(dbtopow_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void dbtopow_tilde_setup(void)
+{
+    dbtopow_tilde_class = class_new(gensym("dbtopow~"), (t_newmethod)dbtopow_tilde_new, 0,
+        sizeof(t_dbtopow_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(dbtopow_tilde_class, t_dbtopow_tilde, x_f);
+    class_addmethod(dbtopow_tilde_class, (t_method)dbtopow_tilde_dsp, gensym("dsp"), 0);
+}
+#include <m_pd.h>
+#include <m_fixed.h>
+
+#define LOGTEN 2.302585092994
+
+typedef struct dbtopow_tilde
+{
+    t_object x_obj;
+    float x_f;
+} t_dbtopow_tilde;
+
+t_class *dbtopow_tilde_class;
+
+static void *dbtopow_tilde_new(void)
+{
+    t_dbtopow_tilde *x = (t_dbtopow_tilde *)pd_new(dbtopow_tilde_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *dbtopow_tilde_perform(t_int *w)
+{
+    float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    for (; n--; in++, out++)
+    {
+        float f = *in;
+        if (f <= 0) *out = 0;
+        else
+        {
+            if (f > 870)
+                f = 870;
+            *out = exp((LOGTEN * 0.1) * (f-100.));
+        }
+    }
+    return (w + 4);
+}
+
+static void dbtopow_tilde_dsp(t_dbtopow_tilde *x, t_signal **sp)
+{
+    post("warning: %s not usable yet",__FUNCTION__);
+    dsp_add(dbtopow_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void dbtopow_tilde_setup(void)
+{
+    dbtopow_tilde_class = class_new(gensym("dbtopow~"), (t_newmethod)dbtopow_tilde_new, 0,
+        sizeof(t_dbtopow_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(dbtopow_tilde_class, t_dbtopow_tilde, x_f);
+    class_addmethod(dbtopow_tilde_class, (t_method)dbtopow_tilde_dsp, gensym("dsp"), 0);
+}