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, 210 insertions, 0 deletions

diff --git a/apps/plugins/pdbox/PDa/intern/tabread4~.c b/apps/plugins/pdbox/PDa/intern/tabread4~.c
new file mode 100644
index 0000000000..e530a9fce8
--- /dev/null
+++ b/apps/plugins/pdbox/PDa/intern/tabread4~.c
@@ -0,0 +1,210 @@
+
+#include <m_pd.h>
+#include <m_fixed.h>
+
+
+static t_class *tabread4_tilde_class;
+
+typedef struct _tabread4_tilde
+{
+    t_object x_obj;
+    int x_npoints;
+    t_sample *x_vec;
+    t_symbol *x_arrayname;
+    float x_f;
+} t_tabread4_tilde;
+
+static void *tabread4_tilde_new(t_symbol *s)
+{
+    t_tabread4_tilde *x = (t_tabread4_tilde *)pd_new(tabread4_tilde_class);
+    x->x_arrayname = s;
+    x->x_vec = 0;
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *tabread4_tilde_perform(t_int *w)
+{
+    t_tabread4_tilde *x = (t_tabread4_tilde *)(w[1]);
+    t_sample *in = (t_sample *)(w[2]);
+    t_sample *out = (t_sample *)(w[3]);
+    int n = (int)(w[4]);    
+    int maxindex;
+    t_sample *buf = x->x_vec, *fp;
+    int i;
+    
+    maxindex = x->x_npoints - 3;
+
+    if (!buf) goto zero;
+
+    for (i = 0; i < n; i++)
+    {
+        t_time findex =  ((long long) mult((*in++),ftofix(44.1)));
+        int index = fixtoi(findex);
+        t_sample frac;
+        //      post("%d: index %d f %lld",index,findex,*in);
+
+        if (index < 1)
+            index = 1, frac = 0;
+        else if (index > maxindex)
+            index = maxindex, frac = 1;
+        else frac = findex - itofix(index);
+        fp = buf + index;
+        *out++ = fp[0] + mult(frac,fp[1]-fp[0]);
+    }
+    return (w+5);
+ zero:
+    while (n--) *out++ = 0;
+
+    return (w+5);
+}
+
+void tabread4_tilde_set(t_tabread4_tilde *x, t_symbol *s)
+{
+    t_garray *a;
+    
+    x->x_arrayname = s;
+    if (!(a = (t_garray *)pd_findbyclass(x->x_arrayname, garray_class)))
+    {
+        if (*s->s_name)
+            error("tabread4~: %s: no such array", x->x_arrayname->s_name);
+        x->x_vec = 0;
+    }
+    else if (!garray_getfloatarray(a, &x->x_npoints, &x->x_vec))
+    {
+        error("%s: bad template for tabread4~", x->x_arrayname->s_name);
+        x->x_vec = 0;
+    }
+    else garray_usedindsp(a);
+}
+
+static void tabread4_tilde_dsp(t_tabread4_tilde *x, t_signal **sp)
+{
+    tabread4_tilde_set(x, x->x_arrayname);
+
+    dsp_add(tabread4_tilde_perform, 4, x,
+        sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+
+}
+
+static void tabread4_tilde_free(t_tabread4_tilde *x)
+{
+}
+
+void tabread4_tilde_setup(void)
+{
+    tabread4_tilde_class = class_new(gensym("tabread4~"),
+        (t_newmethod)tabread4_tilde_new, (t_method)tabread4_tilde_free,
+        sizeof(t_tabread4_tilde), 0, A_DEFSYM, 0);
+    CLASS_MAINSIGNALIN(tabread4_tilde_class, t_tabread4_tilde, x_f);
+    class_addmethod(tabread4_tilde_class, (t_method)tabread4_tilde_dsp,
+        gensym("dsp"), 0);
+    class_addmethod(tabread4_tilde_class, (t_method)tabread4_tilde_set,
+        gensym("set"), A_SYMBOL, 0);
+}
+
+#include <m_pd.h>
+#include <m_fixed.h>
+
+
+static t_class *tabread4_tilde_class;
+
+typedef struct _tabread4_tilde
+{
+    t_object x_obj;
+    int x_npoints;
+    t_sample *x_vec;
+    t_symbol *x_arrayname;
+    float x_f;
+} t_tabread4_tilde;
+
+static void *tabread4_tilde_new(t_symbol *s)
+{
+    t_tabread4_tilde *x = (t_tabread4_tilde *)pd_new(tabread4_tilde_class);
+    x->x_arrayname = s;
+    x->x_vec = 0;
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *tabread4_tilde_perform(t_int *w)
+{
+    t_tabread4_tilde *x = (t_tabread4_tilde *)(w[1]);
+    t_sample *in = (t_sample *)(w[2]);
+    t_sample *out = (t_sample *)(w[3]);
+    int n = (int)(w[4]);    
+    int maxindex;
+    t_sample *buf = x->x_vec, *fp;
+    int i;
+    
+    maxindex = x->x_npoints - 3;
+
+    if (!buf) goto zero;
+
+    for (i = 0; i < n; i++)
+    {
+        t_time findex =  ((long long) mult((*in++),ftofix(44.1)));
+        int index = fixtoi(findex);
+        t_sample frac;
+        //      post("%d: index %d f %lld",index,findex,*in);
+
+        if (index < 1)
+            index = 1, frac = 0;
+        else if (index > maxindex)
+            index = maxindex, frac = 1;
+        else frac = findex - itofix(index);
+        fp = buf + index;
+        *out++ = fp[0] + mult(frac,fp[1]-fp[0]);
+    }
+    return (w+5);
+ zero:
+    while (n--) *out++ = 0;
+
+    return (w+5);
+}
+
+void tabread4_tilde_set(t_tabread4_tilde *x, t_symbol *s)
+{
+    t_garray *a;
+    
+    x->x_arrayname = s;
+    if (!(a = (t_garray *)pd_findbyclass(x->x_arrayname, garray_class)))
+    {
+        if (*s->s_name)
+            error("tabread4~: %s: no such array", x->x_arrayname->s_name);
+        x->x_vec = 0;
+    }
+    else if (!garray_getfloatarray(a, &x->x_npoints, &x->x_vec))
+    {
+        error("%s: bad template for tabread4~", x->x_arrayname->s_name);
+        x->x_vec = 0;
+    }
+    else garray_usedindsp(a);
+}
+
+static void tabread4_tilde_dsp(t_tabread4_tilde *x, t_signal **sp)
+{
+    tabread4_tilde_set(x, x->x_arrayname);
+
+    dsp_add(tabread4_tilde_perform, 4, x,
+        sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+
+}
+
+static void tabread4_tilde_free(t_tabread4_tilde *x)
+{
+}
+
+void tabread4_tilde_setup(void)
+{
+    tabread4_tilde_class = class_new(gensym("tabread4~"),
+        (t_newmethod)tabread4_tilde_new, (t_method)tabread4_tilde_free,
+        sizeof(t_tabread4_tilde), 0, A_DEFSYM, 0);
+    CLASS_MAINSIGNALIN(tabread4_tilde_class, t_tabread4_tilde, x_f);
+    class_addmethod(tabread4_tilde_class, (t_method)tabread4_tilde_dsp,
+        gensym("dsp"), 0);
+    class_addmethod(tabread4_tilde_class, (t_method)tabread4_tilde_set,
+        gensym("set"), A_SYMBOL, 0);
+}