diff options
Diffstat (limited to 'samplebox~.c')
| -rw-r--r-- | samplebox~.c | 530 |
1 files changed, 530 insertions, 0 deletions
diff --git a/samplebox~.c b/samplebox~.c new file mode 100644 index 0000000..64e656c --- /dev/null +++ b/samplebox~.c @@ -0,0 +1,530 @@ +/*------------------------ samplebox~ ----------------------------------------- */
+/* */
+/* samplebox~ : records and plays back a sound */
+/* Written by Yves Degoyon ( ydegoyon@free.fr ) */
+/* */
+/* 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. */
+/* */
+/* See file LICENSE for further informations on licensing terms. */
+/* */
+/* 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. */
+/* */
+/* All i wanted is your time */
+/* All you gave me was tomorrow */
+/* But, tomorrow never comes, tomorrow never comes */
+/* Vini Reilly -- "Tomorrow" */
+/* ---------------------------------------------------------------------------- */
+
+
+
+#include <sys/types.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#ifndef __APPLE__
+#include <malloc.h>
+#endif
+#include <ctype.h>
+#ifdef UNIX
+#include <unistd.h>
+#endif
+#ifdef NT
+#define M_PI 3.14159265358979323846
+#endif
+#include <math.h>
+
+#include "m_pd.h" /* standard pd stuff */
+
+static char *samplebox_version = "samplebox~: stores and plays back a sound version 0.3, written by Yves Degoyon (ydegoyon@free.fr)";
+
+
+static t_class *samplebox_class;
+
+typedef struct _samplebox
+{
+ t_object x_obj;
+
+ t_int x_size; /* size of the stored sound ( in blocks~ ) */
+ t_float x_samplerate; /* sample rate */
+ t_int x_blocksize; /* current block size ( might be modified by block~ object ) */
+ t_float x_readpos; /* data's playing position */
+ t_int x_writepos; /* data's recording position */
+ t_int x_readstart; /* data's starting position for reading */
+ t_int x_readend; /* data's ending position for reading */
+ t_int x_modstart; /* data's starting position for modifications */
+ t_int x_modend; /* data's ending position for modifications */
+ t_int x_play; /* playing on/off flag */
+ t_float x_readspeed; /* number of grouped blocks for reading */
+ t_float x_record; /* flag to start recording process */
+ t_float x_allocate; /* flag to avoid reading data during generation */
+ t_float *x_rdata; /* table containing left channel of the sound */
+ t_float *x_idata; /* table containing right channel of the sound */
+ t_float *x_rootsquares; /* sum of the root squares of a block ( energy ) */
+ t_float x_phase; /* phase to apply on output */
+ t_outlet *x_recordend; /* outlet for end of recording */
+ t_outlet *x_playend; /* outlet for end of playing back */
+ t_float x_f; /* float needed for signal input */
+
+} t_samplebox;
+
+ /* clean up */
+static void samplebox_free(t_samplebox *x)
+{
+ if ( x->x_rdata != NULL ) {
+ freebytes(x->x_rdata, x->x_size*x->x_blocksize*sizeof(float) );
+ post( "Freed %d bytes", x->x_size*x->x_blocksize*sizeof(float) );
+ x->x_rdata = NULL;
+ }
+ if ( x->x_idata != NULL ) {
+ freebytes(x->x_idata, x->x_size*x->x_blocksize*sizeof(float) );
+ post( "Freed %d bytes", x->x_size*x->x_blocksize*sizeof(float) );
+ x->x_idata = NULL;
+ }
+ if ( x->x_rootsquares != NULL ) {
+ freebytes(x->x_rootsquares, x->x_size*sizeof(float) );
+ post( "Freed %d bytes", x->x_size*sizeof(float) );
+ x->x_rootsquares = NULL;
+ }
+}
+
+ /* allocate tables for storing sound */
+static t_int samplebox_allocate(t_samplebox *x)
+{
+ if ( !(x->x_rdata = getbytes( x->x_size*x->x_blocksize*sizeof(float) ) ) ) {
+ return -1;
+ } else {
+ post( "samplebox~ : allocated %d bytes", x->x_size*x->x_blocksize*sizeof(float) );
+ }
+ if ( !(x->x_idata = getbytes( x->x_size*x->x_blocksize*sizeof(float) ) ) ) {
+ return -1;
+ } else {
+ post( "samplebox~ : allocated %d bytes", x->x_size*x->x_blocksize*sizeof(float) );
+ }
+ if ( !(x->x_rootsquares = getbytes( x->x_size*sizeof(float) ) ) ) {
+ return -1;
+ } else {
+ post( "samplebox~ : allocated %d bytes", x->x_size*sizeof(float) );
+ }
+ return 0;
+}
+
+ /* reallocate tables for storing sound */
+static t_int samplebox_reallocate(t_samplebox *x, t_int ioldsize, t_int inewsize)
+{
+ t_float *prdata=x->x_rdata, *pidata=x->x_idata, *prootsquares=x->x_rootsquares;
+
+ if ( !(x->x_rdata = getbytes( inewsize*x->x_blocksize*sizeof(float) ) ) ) {
+ return -1;
+ } else {
+ post( "samplebox~ : allocated %d bytes", inewsize*x->x_blocksize*sizeof(float) );
+ }
+ if ( !(x->x_idata = getbytes( inewsize*x->x_blocksize*sizeof(float) ) ) ) {
+ return -1;
+ } else {
+ post( "samplebox~ : allocated %d bytes", inewsize*x->x_blocksize*sizeof(float) );
+ }
+ if ( !(x->x_rootsquares = getbytes( inewsize*sizeof(float) ) ) ) {
+ return -1;
+ } else {
+ post( "samplebox~ : allocated %d bytes", inewsize*sizeof(float) );
+ }
+ if ( prdata != NULL ) {
+ freebytes(prdata, ioldsize*x->x_blocksize*sizeof(float) );
+ post( "Freed %d bytes", ioldsize*x->x_blocksize*sizeof(float) );
+ }
+ if ( pidata != NULL ) {
+ freebytes(pidata, ioldsize*x->x_blocksize*sizeof(float) );
+ post( "Freed %d bytes", ioldsize*x->x_blocksize*sizeof(float) );
+ }
+ if ( prootsquares != NULL ) {
+ freebytes(prootsquares, ioldsize*sizeof(float) );
+ post( "Freed %d bytes", ioldsize*sizeof(float) );
+ }
+ return 0;
+}
+
+ /* records or playback the sonogram */
+static t_int *samplebox_perform(t_int *w)
+{
+ t_float *rin = (t_float *)(w[1]);
+ t_float *iin = (t_float *)(w[2]);
+ t_float *rout = (t_float *)(w[3]);
+ t_float *iout = (t_float *)(w[4]);
+ t_float fspectrum = 0.0;
+ t_float fphase = 0.0;
+ t_int rpoint;
+ t_int n = (int)(w[5]); /* number of samples */
+ t_samplebox *x = (t_samplebox *)(w[6]);
+ t_int bi;
+ t_float v[4];
+ t_float z[4];
+
+ // reallocate tables if blocksize has been changed
+ if ( n != x->x_blocksize ) {
+ post( "samplebox~ : reallocating tables" );
+ x->x_allocate = 1;
+ samplebox_free(x);
+ x->x_blocksize = n;
+ samplebox_allocate(x);
+ x->x_allocate = 0;
+ }
+
+ // new block : energy is set to zero
+ // if ( x->x_record ) {
+ // *(x->x_rootsquares+x->x_writepos) = 0.0;
+ // }
+
+ if ( x->x_play || x->x_record ) {
+ bi = 0;
+ while (bi<n) {
+ // eventually records input
+ if ( !x->x_allocate && x->x_record) {
+ *(x->x_rdata+(x->x_writepos*x->x_blocksize)+bi)=*rin;
+ *(x->x_idata+(x->x_writepos*x->x_blocksize)+bi)=*iin;
+ // *(x->x_rootsquares+x->x_writepos) += sqrt( pow((*rin),2) + pow((*iin),2) );
+ }
+ // set outputs
+ if ( !x->x_allocate && x->x_play) {
+ *rout = 0.;
+ *iout = 0.;
+ // interpolates 4 points like tabread4
+ rpoint = ((int)x->x_readpos*x->x_blocksize)+bi;
+
+ if ( rpoint == 0 ) {
+ v[0]=0.0;
+ v[1]=*(x->x_rdata+rpoint);
+ v[2]=*(x->x_rdata+rpoint+1);
+ v[3]=*(x->x_rdata+rpoint+2);
+ z[0]=0.0;
+ z[1]=*(x->x_idata+rpoint);
+ z[2]=*(x->x_idata+rpoint+1);
+ z[3]=*(x->x_idata+rpoint+2);
+ } else if ( rpoint == (x->x_size*x->x_blocksize-1) ) {
+ v[0]=*(x->x_rdata+rpoint-1);
+ v[1]=*(x->x_rdata+rpoint);
+ v[2]=*(x->x_rdata+rpoint+1);
+ v[3]=0.0;
+ z[0]=*(x->x_idata+rpoint-1);
+ z[1]=*(x->x_idata+rpoint);
+ z[2]=*(x->x_idata+rpoint+1);
+ z[3]=0.0;
+ } else if ( rpoint == (x->x_size*x->x_blocksize) ) {
+ v[0]=*(x->x_rdata+rpoint-1);
+ v[1]=*(x->x_rdata+rpoint);
+ v[2]=0.0;
+ v[3]=0.0;
+ z[0]=*(x->x_idata+rpoint-1);
+ z[1]=*(x->x_idata+rpoint);
+ z[2]=0.0;
+ z[3]=0.0;
+ } else {
+ v[0]=*(x->x_rdata+rpoint-1);
+ v[1]=*(x->x_rdata+rpoint);
+ v[2]=*(x->x_rdata+rpoint+1);
+ v[3]=*(x->x_rdata+rpoint+2);
+ z[0]=*(x->x_idata+rpoint-1);
+ z[1]=*(x->x_idata+rpoint);
+ z[2]=*(x->x_idata+rpoint+1);
+ z[3]=*(x->x_idata+rpoint+2);
+ }
+
+ {
+ t_float frac = rpoint-(int)rpoint;
+
+ // taken from tabread4_tilde
+ *rout = v[1]+frac*((v[2]-v[1])-0.5f*(frac-1.)*((v[0]-v[3]+3.0f*(v[2]-v[1]))*frac+(2.0f*v[1]-v[0]-v[2])));
+ *iout = z[1]+frac*((z[2]-z[1])-0.5f*(frac-1.)*((z[0]-z[3]+3.0f*(z[2]-z[1]))*frac+(2.0f*z[1]-z[0]-z[2])));
+ }
+
+ // add phase argument
+ fspectrum = sqrt( pow( *rout, 2) + pow( *iout, 2) );
+ fphase = atan2( *iout, *rout );
+ fphase += (x->x_phase/180.0)*(M_PI);
+ *rout = fspectrum*cos( fphase );
+ *iout = fspectrum*sin( fphase );
+ } else {
+ *rout=0.0;
+ *iout=0.0;
+ }
+ rout++;iout++;
+ rin++;iin++;
+ bi++;
+ }
+ // reset playing position until next play
+ if ( x->x_play ) {
+ x->x_readpos+=x->x_readspeed;
+ // post( "xreadpos : %f (added %f)", x->x_readpos, x->x_readspeed );
+ if ( x->x_readpos >= (x->x_readend*x->x_size)/100 ) {
+ x->x_play=0;
+ x->x_readpos=(x->x_readstart*x->x_size)/100;
+ // post( "samplebox~ : stopped playing (readpos=%d)", x->x_readpos );
+ outlet_bang(x->x_playend);
+ }
+ }
+ // reset recording position until next record
+ if ( x->x_record ) {
+ x->x_writepos++;
+ if ( x->x_writepos >= x->x_size ) {
+ x->x_record=0;
+ x->x_writepos=0;
+ outlet_bang(x->x_recordend);
+ // post( "samplebox~ : stopped recording" );
+ }
+ }
+ }
+ return (w+7);
+}
+
+static void samplebox_dsp(t_samplebox *x, t_signal **sp)
+{
+ dsp_add(samplebox_perform, 6, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec, sp[0]->s_n, x);
+}
+
+ /* record the sonogram */
+static void samplebox_record(t_samplebox *x)
+{
+ x->x_record=1;
+ x->x_writepos=0;
+}
+
+ /* play the sonogram */
+static void samplebox_play(t_samplebox *x)
+{
+ x->x_play=1;
+ // reset read position
+ x->x_readpos=(x->x_readstart*x->x_size)/100;
+}
+
+ /* setting the starting point for reading ( in percent ) */
+static void samplebox_readstart(t_samplebox *x, t_floatarg fstart)
+{
+ t_float startpoint = fstart;
+
+ if (startpoint < 0) startpoint = 0;
+ if (startpoint > 100) startpoint = 100;
+ if ( startpoint > x->x_readend ) {
+ x->x_readstart = x->x_readend;
+ post( "samplebox~ : warning : range for reading is null" );
+ } else {
+ x->x_readstart=startpoint;
+ }
+}
+
+ /* setting the starting point for modification ( in percent ) */
+static void samplebox_modstart(t_samplebox *x, t_floatarg fstart)
+{
+ t_float startpoint = fstart;
+
+ if (startpoint < 0) startpoint = 0;
+ if (startpoint > 100) startpoint = 100;
+ if ( startpoint > x->x_modend ) {
+ x->x_modstart = x->x_modend;
+ post( "samplebox~ : warning : range for modifications is null" );
+ } else {
+ x->x_modstart=startpoint;
+ }
+}
+
+ /* setting the ending point for reading ( in percent ) */
+static void samplebox_readend(t_samplebox *x, t_floatarg fend)
+{
+ t_float endpoint = fend;
+
+ if (endpoint < 0) endpoint = 0;
+ if (endpoint > 100) endpoint = 100;
+ if ( endpoint < x->x_readstart ) {
+ x->x_readend = x->x_readstart;
+ post( "samplebox~ : warning : range for reading is null" );
+ } else {
+ x->x_readend=endpoint;
+ }
+}
+
+ /* setting the ending point for modification ( in percent ) */
+static void samplebox_modend(t_samplebox *x, t_floatarg fend)
+{
+ t_float endpoint = fend;
+
+ if (endpoint < 0) endpoint = 0;
+ if (endpoint > 100) endpoint = 100;
+ if ( endpoint < x->x_modstart ) {
+ x->x_modend = x->x_modstart;
+ post( "samplebox~ : warning : range for modifications is null" );
+ } else {
+ x->x_modend=endpoint;
+ }
+}
+
+ /* sets the reading speed */
+static void samplebox_readspeed(t_samplebox *x, t_floatarg freadspeed)
+{
+ if ((int)freadspeed < 0 ) {
+ post( "samplebox~ : wrong readspeed argument" );
+ }
+ x->x_readspeed=freadspeed;
+}
+
+ /* resize sonogram */
+static void samplebox_resize(t_samplebox *x, t_floatarg fnewsize )
+{
+ if (fnewsize <= 0) {
+ post( "samplebox~ : error : wrong size" );
+ return;
+ }
+ post( "samplebox~ : reallocating tables" );
+ x->x_record = 0;
+ x->x_play = 0;
+ x->x_allocate = 1;
+ samplebox_reallocate(x, x->x_size, fnewsize);
+ x->x_size = fnewsize;
+ x->x_allocate = 0;
+}
+
+ /* flip blocks */
+static void samplebox_flipblocks(t_samplebox *x)
+{
+ t_int samplestart, sampleend, middlesample, fi, si;
+ t_float fvalue;
+
+ samplestart=(x->x_modstart*(x->x_size-1))/100;
+ sampleend=(x->x_modend*(x->x_size-1))/100;
+ middlesample = ( sampleend+samplestart+1 ) / 2;
+ post( "flip blocks [%d,%d] and [%d,%d]", samplestart, middlesample, middlesample, sampleend );
+
+ for ( si=samplestart; si<=middlesample; si++ ) {
+ for ( fi=0; fi<x->x_blocksize; fi++ ) {
+ fvalue = *(x->x_rdata+((si)*x->x_blocksize)+fi);
+ *(x->x_rdata+((si)*x->x_blocksize)+fi) = *(x->x_rdata+((sampleend+samplestart-si)*x->x_blocksize)+fi);
+ *(x->x_rdata+((sampleend+samplestart-si)*x->x_blocksize)+fi) = fvalue;
+ fvalue = *(x->x_idata+((si)*x->x_blocksize)+fi);
+ *(x->x_idata+((si)*x->x_blocksize)+fi) = *(x->x_idata+((sampleend+samplestart-si)*x->x_blocksize)+fi);
+ *(x->x_idata+((sampleend+samplestart-si)*x->x_blocksize)+fi) = fvalue;
+ }
+ }
+}
+
+ /* change the phase */
+static void samplebox_phase(t_samplebox *x, t_floatarg fincphase)
+{
+ if (fincphase < 0 || fincphase > 90) {
+ post( "samplebox~ : error : wrong phase in phase function : out of [0,90]" );
+ return;
+ }
+ x->x_phase = fincphase;
+}
+
+ /* swap blocks */
+static void samplebox_swapblocks(t_samplebox *x, t_floatarg fperstart, t_floatarg fperend, t_floatarg fpersize)
+{
+ t_int samplestart, samplestartb, samplesize, sp, sf;
+ t_int iperstart, iperend, ipersize;
+ t_float s1, s2;
+ t_float fvalue;
+
+ iperstart = fperstart;
+ iperend = fperend;
+ ipersize = fpersize;
+
+ if (iperstart < 0 || iperstart > iperend ||
+ iperend <= 0 || iperend+ipersize > 100 ||
+ ipersize < 0 || fpersize > 100 ) {
+ post( "samplebox~ : error : wrong interval [%d%%, %d%%] <-> [%d%%, %d%%]",
+ iperstart, iperstart+ipersize, iperend, iperend+ipersize );
+ return;
+ }
+ samplestart=(x->x_modstart*(x->x_size-1))/100;
+ samplestartb=(x->x_modend*(x->x_size-1))/100;
+ samplesize=((samplestartb-samplestart)*ipersize)/100;
+ samplestart=samplestart+((samplestartb-samplestart)*iperstart)/100;
+ samplestartb=samplestart+((samplestartb-samplestart)*iperend)/100;
+
+ // post( "swap blocks [%d,%d] and [%d,%d]", samplestart, samplestart+samplesize, samplestartb, samplestartb+samplesize );
+
+ for ( sp=samplesize; sp>=0; sp-- ) {
+ for ( sf=0; sf<x->x_blocksize; sf++) {
+ fvalue = *(x->x_rdata+((int)(samplestart+sp)*x->x_blocksize)+sf);
+ *(x->x_rdata+((int)(samplestart+sp)*x->x_blocksize)+sf) = *(x->x_rdata+((int)(samplestartb+sp)*x->x_blocksize)+sf);
+ *(x->x_rdata+((int)(samplestartb+sp)*x->x_blocksize)+sf) = fvalue;
+ fvalue = *(x->x_idata+((int)(samplestart+sp)*x->x_blocksize)+sf);
+ *(x->x_idata+((int)(samplestart+sp)*x->x_blocksize)+sf) = *(x->x_idata+((int)(samplestartb+sp)*x->x_blocksize)+sf);
+ *(x->x_idata+((int)(samplestartb+sp)*x->x_blocksize)+sf) = fvalue;
+ }
+ }
+}
+
+static void *samplebox_new(t_floatarg fsize)
+{
+ t_samplebox *x = (t_samplebox *)pd_new(samplebox_class);
+ outlet_new(&x->x_obj, &s_signal);
+ outlet_new(&x->x_obj, &s_signal);
+ x->x_recordend = outlet_new(&x->x_obj, &s_bang );
+ x->x_playend = outlet_new(&x->x_obj, &s_bang );
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("readstart"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("readend"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("modstart"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("modend"));
+
+ if ( fsize <= 0 ) {
+ error( "samplebox~ : missing or negative creation arguments" );
+ return NULL;
+ }
+
+ x->x_size = fsize;
+ x->x_blocksize = sys_getblksize();
+ x->x_play = 0;
+ x->x_readspeed = 1.;
+ x->x_record = 0;
+ x->x_readpos = 0.;
+ x->x_writepos = 0;
+ x->x_modstart = 0;
+ x->x_readstart = 0;
+ x->x_modend = 100;
+ x->x_readend = 100;
+ x->x_allocate = 0;
+ x->x_rdata = NULL;
+ x->x_idata = NULL;
+ x->x_rootsquares = NULL;
+ x->x_phase = 0.0;
+ x->x_samplerate = sys_getsr();
+ if ( samplebox_allocate(x) <0 ) {
+ return NULL;
+ } else {
+ return(x);
+ }
+}
+
+void samplebox_tilde_setup(void)
+{
+ post(samplebox_version);
+ samplebox_class = class_new(gensym("samplebox~"), (t_newmethod)samplebox_new, (t_method)samplebox_free,
+ sizeof(t_samplebox), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN( samplebox_class, t_samplebox, x_f );
+ class_addmethod(samplebox_class, (t_method)samplebox_dsp, gensym("dsp"), 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_record, gensym("record"), 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_resize, gensym("resize"), A_FLOAT, 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_swapblocks, gensym("swapblocks"), A_FLOAT, A_FLOAT, A_FLOAT, 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_flipblocks, gensym("flipblocks"), 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_play, gensym("play"), 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_phase, gensym("phase"), A_FLOAT, 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_modstart, gensym("modstart"), A_FLOAT, 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_modend, gensym("modend"), A_FLOAT, 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_readstart, gensym("readstart"), A_FLOAT, 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_readend, gensym("readend"), A_FLOAT, 0);
+ class_addmethod(samplebox_class, (t_method)samplebox_readspeed, gensym("readspeed"), A_FLOAT, 0);
+}
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