From 8b0873392ad0db55fdb9d0cdfc670366bc96a9c9 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 26 Apr 2010 03:10:47 +0000 Subject: converted maxlib to use libdir template, in preparations for debianizing it svn path=/trunk/externals/maxlib/; revision=13476 --- borax.c | 238 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 238 insertions(+) create mode 100644 borax.c (limited to 'borax.c') diff --git a/borax.c b/borax.c new file mode 100644 index 0000000..32979b7 --- /dev/null +++ b/borax.c @@ -0,0 +1,238 @@ +/* ------------------------- borax ------------------------------------------ */ +/* */ +/* "swiss army knife" for music analysis. Inspired by 'borax' for Max. */ +/* Written by Olaf Matthes (olaf.matthes@gmx.de) */ +/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */ +/* */ +/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +/* */ +/* Based on PureData by Miller Puckette and others. */ +/* */ +/* ---------------------------------------------------------------------------- */ + +#include "m_pd.h" + +#define MAX_POLY 128 /* maximum number of notes played at a time */ + +static char *version = "borax v0.1, written by Olaf Matthes "; + +typedef struct borax +{ + t_object x_ob; + t_inlet *x_invelo; /* inlet for velocity */ + t_inlet *x_inreset; /* inlet to reset the object */ + t_outlet *x_outnotecount; /* counts notes */ + t_outlet *x_outvoicealloc; /* assigns every note a unique number */ + t_outlet *x_outpoly; /* number of notes playing (polyphony) */ + t_outlet *x_outpitch; /* pitch of current note */ + t_outlet *x_outvelo; /* velocity of current note */ + t_outlet *x_outdurcount; /* number assigned to duration value */ + t_outlet *x_outdurval; /* duration value */ + t_outlet *x_outtimecount; /* number assigned to delta time value */ + t_outlet *x_outtimeval; /* delta time value */ + + + t_float x_notecount; + t_int x_pitch; + t_int x_velo; + t_float x_voicecount; + t_int x_voicealloc; + t_int x_poly; + t_float x_durcount; + t_float x_durval; + t_float x_timecount; + t_float x_timeval; + /* helpers needed to do the calculations */ + double x_starttime[MAX_POLY]; + double x_laststarttime; + t_int x_alloctable[MAX_POLY]; + +} t_borax; + +static void borax_float(t_borax *x, t_floatarg f) +{ + t_int velo = x->x_velo; + t_int allloc = 0; + int i; + + x->x_pitch = (t_int)f; + + if(velo == 0) + { + /* note off received... */ + if(x->x_poly > 0)x->x_poly--; /* polyphony has decreased by one */ + x->x_durcount++; /* we can calculate the duration */ + for(i = 0; i < MAX_POLY; i++) /* search for voice allocation number */ + { + /* search for corresponding alloc number */ + if(x->x_alloctable[i] == x->x_pitch) + { + x->x_voicealloc = i; + x->x_alloctable[i] = 0; /* free the alloc number */ + break; + } + /* couldn't find it ? */ + if(i == MAX_POLY - 1) + { + post("borax: no corresponding note-on found (ignored)"); + return; + } + } + x->x_durval = clock_gettimesince(x->x_starttime[x->x_voicealloc]); + } + else if(velo != 0) + { + /* note on received... */ + x->x_poly++; /* number of currently playing notes has increased */ + x->x_notecount++; /* total number of notes has increased */ + /* assign a voice allocation number */ + for(i = 0; i < MAX_POLY; i++) + { + /* search for free alloc number */ + if(x->x_alloctable[i] == 0) + { + x->x_voicealloc = i; /* take the number */ + x->x_alloctable[i] = x->x_pitch; /* ... and store pitch */ + break; + } + /* couldn't find any ? */ + if(i == MAX_POLY - 1) + { + post("borax: too many note-on messages (ignored)"); + return; + } + } + /* calculate time in case it's not the first note */ + if(x->x_notecount > 1) + { + x->x_timecount++; + x->x_timeval = clock_gettimesince(x->x_laststarttime); + } + /* save the new start time */ + x->x_laststarttime = x->x_starttime[x->x_voicealloc] = clock_getlogicaltime(); + } + /* output values from right to left */ + outlet_float(x->x_outtimeval, x->x_timeval); + outlet_float(x->x_outtimecount, x->x_timecount); + outlet_float(x->x_outdurval, x->x_durval); + outlet_float(x->x_outdurcount, x->x_durcount); + outlet_float(x->x_outvelo, velo); + outlet_float(x->x_outpitch, x->x_pitch); + outlet_float(x->x_outpoly, x->x_poly); + outlet_float(x->x_outvoicealloc, x->x_voicealloc); + outlet_float(x->x_outnotecount, x->x_notecount); +} + +static void borax_ft1(t_borax *x, t_floatarg f) +{ + x->x_velo = (t_int)f; +} + +static void borax_reset(t_borax *x) +{ + int i; + post("borax: reset"); + x->x_notecount = 0; + x->x_pitch = 0; + x->x_velo = 0; + x->x_voicecount = 0; + x->x_voicealloc = 0; + x->x_poly = 0; + x->x_durcount = 0; + x->x_durval = 0; + x->x_timecount = 0; + x->x_timeval = 0; + outlet_float(x->x_outtimeval, x->x_timeval); + outlet_float(x->x_outtimecount, x->x_timecount); + outlet_float(x->x_outdurval, x->x_durval); + outlet_float(x->x_outdurcount, x->x_durcount); + for(i = 0; i < MAX_POLY; i++) + { + if(x->x_alloctable[i] != 0) + { + x->x_poly--; + /* send note-off */ + outlet_float(x->x_outvelo, 0); + outlet_float(x->x_outpitch, x->x_alloctable[i]); + outlet_float(x->x_outpoly, x->x_poly); + outlet_float(x->x_outvoicealloc, i); + } + x->x_alloctable[i] = 0; + } + outlet_float(x->x_outvelo, x->x_velo); + outlet_float(x->x_outpitch, x->x_pitch); + outlet_float(x->x_outpoly, x->x_poly); + outlet_float(x->x_outvoicealloc, x->x_voicealloc); + outlet_float(x->x_outnotecount, x->x_notecount); +} + +static t_class *borax_class; + +static void *borax_new(void) +{ + int i; + + t_borax *x = (t_borax *)pd_new(borax_class); + x->x_invelo = inlet_new(&x->x_ob, &x->x_ob.ob_pd, gensym("float"), gensym("ft1")); + x->x_inreset = inlet_new(&x->x_ob, &x->x_ob.ob_pd, gensym("bang"), gensym("ft2")); + x->x_outnotecount = outlet_new(&x->x_ob, gensym("float")); + x->x_outvoicealloc = outlet_new(&x->x_ob, gensym("float")); + x->x_outpoly = outlet_new(&x->x_ob, gensym("float")); + x->x_outpitch = outlet_new(&x->x_ob, gensym("float")); + x->x_outvelo = outlet_new(&x->x_ob, gensym("float")); + x->x_outdurcount = outlet_new(&x->x_ob, gensym("float")); + x->x_outdurval = outlet_new(&x->x_ob, gensym("float")); + x->x_outtimecount = outlet_new(&x->x_ob, gensym("float")); + x->x_outtimeval = outlet_new(&x->x_ob, gensym("float")); + + for(i = 0; i < MAX_POLY; i++)x->x_alloctable[i] = 0; + x->x_notecount = 0; + x->x_pitch = 0; + x->x_velo = 0; + x->x_voicecount = 0; + x->x_voicealloc = 0; + x->x_poly = 0; + x->x_durcount = 0; + x->x_durval = 0; + x->x_timecount = 0; + x->x_timeval = 0; + + return (void *)x; +} + +#ifndef MAXLIB +void borax_setup(void) +{ + borax_class = class_new(gensym("borax"), (t_newmethod)borax_new, + 0, sizeof(t_borax), 0, 0); +#else +void maxlib_borax_setup(void) +{ + borax_class = class_new(gensym("maxlib_borax"), (t_newmethod)borax_new, + 0, sizeof(t_borax), 0, 0); +#endif + class_addmethod(borax_class, (t_method)borax_reset, gensym("reset"), 0); + class_addmethod(borax_class, (t_method)borax_ft1, gensym("ft1"), A_FLOAT, 0); + class_addmethod(borax_class, (t_method)borax_reset, gensym("ft2"), A_GIMME, 0); + class_addfloat(borax_class, borax_float); +#ifndef MAXLIB + + post(version); +#else + class_addcreator((t_newmethod)borax_new, gensym("borax"), 0); + class_sethelpsymbol(borax_class, gensym("maxlib/borax-help.pd")); +#endif +} + -- cgit v1.2.1