aboutsummaryrefslogtreecommitdiff
path: root/bmt~.c
diff options
context:
space:
mode:
Diffstat (limited to 'bmt~.c')
-rw-r--r--bmt~.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/bmt~.c b/bmt~.c
new file mode 100644
index 0000000..5b9498d
--- /dev/null
+++ b/bmt~.c
@@ -0,0 +1,157 @@
+/*
+ * bmt~ : bassmidtreble, according to threshold
+ * Copyright (C) 2010 Edward Kelly <morph_2016@yahoo.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "m_pd.h"
+#include <math.h>
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+static t_class *bmt_tilde_class;
+
+typedef struct _bmt_tilde
+{
+ t_object x_obj;
+ t_atom levels[128]; // a ridiculous number of bands!!!
+ t_atom binmost[128];
+ // t_atom xovers[127]; // and their crossover band points.
+ // Make this so the bands can be log! or pow x!
+
+ t_float f;
+ t_float mode;
+ t_float length; // how many do we have?
+ t_outlet *bmt, *bins;
+} t_bmt_tilde;
+
+t_int *bmt_tilde_perform(t_int *w)
+{
+ t_bmt_tilde *x = (t_bmt_tilde *)(w[1]);
+ t_sample *real = (t_sample *)(w[2]);
+ t_sample *imag = (t_sample *)(w[3]);
+ int n = (int)(w[4]);
+ float incr = 0;
+ float max = 0;
+ float vectorr, vectori;
+ float alpha;
+ int n_real = n / 2;
+ float bsize = n_real / x->length;
+ float block = 0;
+ float reblock = 0;
+ int ilength = (int)(x->length);
+ int iblock = 0;
+
+ while (n--)
+ {
+ vectorr = (*real++);
+ vectori = (*imag++);
+ if (n > n_real)
+ {
+ if (x->mode == 0)
+ {
+ reblock = block;
+ alpha = sqrt((vectorr * vectorr) + (vectori * vectori));
+ block = (int)(incr / bsize);
+ iblock = (int)(block);
+ if (block != reblock)
+ {
+ max = alpha;
+ }
+ else if (alpha > max)
+ {
+ max = alpha;
+ SETFLOAT(&x->levels[iblock], max);
+ SETFLOAT(&x->binmost[iblock], incr-((int)(block*bsize)));
+ }
+ }
+ else if (x->mode == 1)
+ {
+ reblock = block;
+ alpha = sqrt((vectorr * vectorr) + (vectori * vectori));
+ block = (int)(incr / bsize);
+ iblock = (int)(block);
+ if (block != reblock)
+ {
+ max = alpha;
+ }
+ else if (block == reblock)
+ {
+ max += alpha;
+ SETFLOAT(&x->levels[iblock], max);
+ SETFLOAT(&x->binmost[iblock], incr-((int)(block*bsize)));
+ }
+ }
+ }
+ incr++;
+ }
+ outlet_list(x->bins, gensym("list"), ilength, x->binmost);
+ outlet_list(x->bmt, gensym("list"), ilength, x->levels);
+ //outlet_list(x->f_levs, (float)max);
+ //outlet_list(x->f_bmt, x->f_topbin);
+
+ return(w+5);
+}
+
+void bmt_tilde_mode(t_bmt_tilde *x, t_floatarg n)
+{
+ x->mode = n;
+}
+
+void bmt_tilde_dsp(t_bmt_tilde *x, t_signal **sp)
+{
+ dsp_add(bmt_tilde_perform, 4, x,
+ sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void *bmt_tilde_new(t_floatarg nbands)
+{
+ t_bmt_tilde *x = (t_bmt_tilde *)pd_new(bmt_tilde_class);
+
+ x->length = nbands > 1 ? nbands > 128 ? 128 : nbands : 3;
+ // set min max nbands
+ inlet_new (&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+ // floatinlet_new (&x->x_obj, &x->f_thresh);
+ int i;
+ x->mode = 0; //make this a creation arg...Ed
+ for(i=0;i<128;i++)
+ {
+ SETFLOAT(&x->levels[i], 0);
+ SETFLOAT(&x->binmost[i], 0);
+ }
+ x->bmt = outlet_new(&x->x_obj, gensym("list"));
+ x->bins = outlet_new(&x->x_obj, gensym("list"));
+ return (void *)x;
+}
+
+void bmt_tilde_setup(void)
+{
+ bmt_tilde_class = class_new(gensym("bmt~"),
+ (t_newmethod)bmt_tilde_new,
+ 0, sizeof(t_bmt_tilde),
+ CLASS_DEFAULT, A_DEFFLOAT, 0);
+
+ post("|=======bmt~========|");
+ post("|=bass==mid==treble=|");
+ post("|=ed==kelly===2010==|");
+
+ class_addmethod(bmt_tilde_class, (t_method)bmt_tilde_dsp,
+ gensym("dsp"), 0);
+ class_addmethod(bmt_tilde_class, (t_method)bmt_tilde_mode, gensym("mode"), A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(bmt_tilde_class, t_bmt_tilde, f);
+}