diff options
Diffstat (limited to 'residency_buffer~.c')
| -rw-r--r-- | residency_buffer~.c | 565 |
1 files changed, 565 insertions, 0 deletions
diff --git a/residency_buffer~.c b/residency_buffer~.c new file mode 100644 index 0000000..5082990 --- /dev/null +++ b/residency_buffer~.c @@ -0,0 +1,565 @@ +#ifndef PD
+
+#include "MSPd.h"
+#include "fftease.h"
+/* #include "buffer.h" */
+
+/* Not ported to Pd due to array/buffer difference */
+// #define FLEN 1024
+
+#if MSP
+void *resident_class;
+#endif
+
+#if PD
+static t_class *resident_class;
+#endif
+
+#define OBJECT_NAME "residency_buffer~"
+
+typedef struct _resident
+{
+#if MSP
+ t_pxobject x_obj;
+#endif
+#if PD
+ t_object x_obj;
+ float x_f;
+#endif
+ int R;
+ int N;
+ int N2;
+ int Nw;
+ int Nw2;
+ int D;
+ int i;
+ int inCount;
+ float *Wanal;
+ float *Wsyn;
+ float *input;
+ float *Hwin;
+ float *buffer;
+ float *channel;
+ float *output;
+ float current_frame;
+ int framecount;
+ //
+ float frame_increment ;
+ float fpos;
+ float last_fpos;
+ float tadv;
+ // for convert
+ float *c_lastphase_in;
+ float *c_lastphase_out;
+ float c_fundamental;
+ float c_factor_in;
+ float c_factor_out;
+ // faster fft
+ float mult;
+ float *trigland;
+ int *bitshuffle;
+ int read_me;
+ int frames_read;
+ int MAXFRAMES;
+ short mute;
+ short in2_connected;
+ short in3_connected;
+ int buffer_frame_count;
+ // buffer
+ t_symbol *l_sym;
+ t_buffer *l_buf;
+ short initialized;
+ float *tmpframe;
+ int hopsize;
+ int overlap;
+ int winfac;
+ short playthrough;
+ float sync;
+ short buffer_is_hosed;
+} t_resident;
+
+void *resident_new(t_symbol *msg, short argc, t_atom *argv);
+t_int *offset_perform(t_int *w);
+t_int *resident_perform(t_int *w);
+void resident_dsp(t_resident *x, t_signal **sp, short *count);
+void resident_assist(t_resident *x, void *b, long m, long a, char *s);
+void resident_bangname ( t_resident *x ) ;
+void resident_meminfo( t_resident *x ) ;
+void resident_float(t_resident *x, double f) ;
+void resident_mute(t_resident *x, long toggle);
+void resident_calcbuf(t_resident *x, double desired_duration);
+void resident_dsp_free( t_resident *x );
+void resident_fftinfo(t_resident *x);
+void resident_winfac(t_resident *x, t_floatarg f);
+void resident_playthrough(t_resident *x, t_floatarg f);
+void resident_overlap(t_resident *x, t_floatarg f);
+resident_init(t_resident *x, short initialized);
+
+
+void main(void)
+{
+ setup((t_messlist **)&resident_class, (method)resident_new, (method)resident_dsp_free, (short)sizeof(t_resident), 0L, A_GIMME,0);
+ addmess((method)resident_dsp, "dsp", A_CANT, 0);
+ addmess((method)resident_assist,"assist",A_CANT,0);
+ addfloat((method) resident_float);
+ addbang( (method) resident_bangname );
+ addmess ((method)resident_mute, "mute", A_LONG, 0);
+ addmess ((method)resident_fftinfo, "meminfo", 0);
+ addmess ((method)resident_calcbuf, "calcbuf", A_FLOAT, 0);
+ addmess ((method)resident_winfac, "winfac", A_FLOAT, 0);
+ addmess ((method)resident_overlap, "overlap", A_FLOAT, 0);
+ addmess ((method)resident_playthrough, "playthrough", A_FLOAT, 0);
+ addmess ((method)resident_fftinfo, "fftinfo", 0);
+ dsp_initclass();
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+
+void resident_meminfo( t_resident *x )
+{
+ post("%d frames in buffer", x->buffer_frame_count);
+ post("frame_duration: %f, actual time in buffer: %f", x->tadv, (float)(x->buffer_frame_count) * x->tadv);
+ post("actual time in buffer: %f", (float)(x->buffer_frame_count) * x->tadv);
+}
+
+
+
+void resident_fftinfo(t_resident *x)
+{
+ if( ! x->overlap ){
+ post("zero overlap!");
+ return;
+ }
+ post("%s: FFT size %d, hopsize %d, windowsize %d", OBJECT_NAME, x->N, x->N/x->overlap, x->Nw);
+}
+
+
+void resident_dsp_free( t_resident *x ){
+ dsp_free( (t_pxobject *) x);
+ freebytes(x->c_lastphase_in,0);
+ freebytes(x->c_lastphase_out,0);
+ freebytes(x->trigland,0);
+ freebytes(x->bitshuffle,0);
+ freebytes(x->Wanal,0);
+ freebytes(x->Wsyn,0);
+ freebytes(x->input,0);
+ freebytes(x->Hwin,0);
+ freebytes(x->buffer,0);
+ freebytes(x->channel,0);
+ freebytes(x->output,0);
+ freebytes(x->tmpframe,0);
+
+}
+
+void resident_calcbuf(t_resident *x, double desired_duration)
+{
+ float ms_calc;
+ float frames_needed;
+ float seconds;
+ float frames;
+ float samples;
+
+ seconds = desired_duration / 1000.0;
+ frames = seconds / x->tadv;
+ samples = frames * (float) (x->N + 2);
+ ms_calc = (samples / x->R) * 1000.0;
+ post("you need %.0f milliseconds in buffer to get %.0f frames", ms_calc, frames);
+
+}
+
+void resident_assist (t_resident *x, void *b, long msg, long arg, char *dst)
+{
+ if (msg==1) {
+ switch (arg) {
+ case 0:
+ sprintf(dst,"(signal/bang) Input, Sampling Trigger");
+ break;
+ case 1:
+ sprintf(dst,"(signal/float) Frame Increment");
+ break;
+ case 2:
+ sprintf(dst,"(signal/float) Frame Position [0-1]");
+ break;
+
+ }
+ } else if (msg==2) {
+ switch(arg) {
+ case 1: sprintf(dst,"(signal) Output"); break;
+ case 2: sprintf(dst,"(signal) Record Sync"); break;
+ }
+ }
+}
+
+void *resident_new(t_symbol *msg, short argc, t_atom *argv)
+{
+ t_resident *x = (t_resident *)newobject(resident_class);
+
+ dsp_setup((t_pxobject *)x,3);
+ outlet_new((t_pxobject *)x, "signal");
+ outlet_new((t_pxobject *)x, "signal");
+
+ x->D = sys_getblksize();
+ x->R = sys_getsr();
+
+ /* args: bufname, overlap, winfac */
+
+ x->l_sym = atom_getsymarg(0, argc, argv);
+ x->overlap = atom_getintarg(1, argc, argv);
+ x->winfac = atom_getintarg(2, argc, argv);
+
+// post("argc is %d", argc); it is the number of arguments, not including name of external
+ if(argc < 1){
+ error("%s: you must provide the name of a valid buffer.",OBJECT_NAME);
+ x->x_obj.z_disabled = 1;
+ return 0; // kills object for good
+ } else {
+ x->x_obj.z_disabled = 0;
+ }
+
+ resident_init(x,0);
+ return (x);
+}
+
+resident_init(t_resident *x, short initialized)
+{
+ int i;
+ if(!power_of_two(x->overlap))
+ x->overlap = 4;
+ if(!power_of_two(x->winfac))
+ x->winfac = 1;
+
+ x->N = x->D * x->overlap;
+ x->Nw = x->N * x->winfac;
+ limit_fftsize(&x->N,&x->Nw,OBJECT_NAME);
+ x->hopsize = x->D;
+ x->tadv = (float) x->D / (float) x->R;
+ x->N2 = (x->N)>>1;
+ x->Nw2 = (x->Nw)>>1;
+ x->inCount = -(x->Nw);
+ x->mult = 1. / (float) x->N;
+ x->c_fundamental = (float) x->R/( (x->N2)<<1 );
+ x->c_factor_in = (float) x->R/((float)x->D * TWOPI);
+ x->c_factor_out =TWOPI * (float) x->D / (float) x->R;
+
+ if(!initialized){
+ x->mute = 0;
+ x->sync = 0;
+ x->initialized = 1;
+ x->current_frame = x->framecount = 0;
+ x->frame_increment = 1.0 ;
+ x->fpos = x->last_fpos = 0;
+ x->Wanal = (float *) getbytes( MAX_Nw * sizeof(float) );
+ x->Wsyn = (float *) getbytes( MAX_Nw * sizeof(float) );
+ x->Hwin = (float *) getbytes( MAX_Nw * sizeof(float) );
+ x->input = (float *) getbytes( MAX_Nw * sizeof(float) );
+ x->output = (float *) getbytes( MAX_Nw * sizeof(float) );
+ x->buffer = (float *) getbytes( MAX_N * sizeof(float) );
+ x->channel = (float *) getbytes( (MAX_N+2) * sizeof(float) );
+ x->tmpframe = (float *) getbytes( (MAX_N+2) * sizeof(float) );
+ x->bitshuffle = (int *) getbytes( (MAX_N * 2) * sizeof( int ) );
+ x->trigland = (float *) getbytes( (MAX_N * 2) * sizeof( float ) );
+ x->c_lastphase_in = (float *) getbytes( (MAX_N2+1) * sizeof(float) );
+ x->c_lastphase_out = (float *) getbytes( (MAX_N2+1) * sizeof(float) );
+ }
+
+ memset((char *)x->input,0,x->Nw * sizeof(float));
+ memset((char *)x->output,0,x->Nw * sizeof(float));
+ memset((char *)x->c_lastphase_in,0,(x->N2+1) * sizeof(float));
+ memset((char *)x->c_lastphase_out,0,(x->N2+1) * sizeof(float));
+
+ init_rdft( x->N, x->bitshuffle, x->trigland);
+ makewindows( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D);
+}
+
+t_int *resident_perform(t_int *w)
+{
+ float sample, outsamp ;
+ int index_offset;
+ int i, j;
+
+ //////////////////////////////////////////////
+ t_resident *x = (t_resident *) (w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *increment = (t_float *)(w[3]);
+ t_float *position = (t_float *)(w[4]);
+ t_float *out = (t_float *)(w[5]);
+ t_float *vec_sync = (t_float *)(w[6]);
+ t_int n = w[7];
+
+ /* dereference structure */
+
+ int inCount = x->inCount;
+ int R = x->R;
+ int N = x->N;
+ int N2 = x->N2;
+ int D = x->D;
+ int Nw = x->Nw;
+ float *Wanal = x->Wanal;
+ float *Wsyn = x->Wsyn;
+ float *input = x->input;
+ float *output = x->output;
+ float *buffer = x->buffer;
+ float *channel = x->channel;
+ float fframe = x->current_frame ;
+ float fincr = x->frame_increment;
+ float fpos = x->fpos;
+ float last_fpos = x->last_fpos ;
+ int framecount = x->framecount;
+ float sync = x->sync;
+
+
+ float mult = x->mult ;
+ int *bitshuffle = x->bitshuffle;
+ float *trigland = x->trigland ;
+
+ float *c_lastphase_in = x->c_lastphase_in;
+ float *c_lastphase_out = x->c_lastphase_out;
+ float c_fundamental = x->c_fundamental;
+ float c_factor_in = x->c_factor_in;
+ float c_factor_out = x->c_factor_out;
+
+ float *tmpframe = x->tmpframe;
+
+ t_buffer *l_buf = x->l_buf;
+
+ int frames_read = x->frames_read;
+ int buffer_frame_count = x->buffer_frame_count;
+
+ if (x->in2_connected) {
+ fincr = *increment++;
+ }
+
+ if (x->in3_connected) {
+ fpos = *position++;
+ }
+
+ inCount += D;
+
+ if( (! x->initialized) || x->mute || x->x_obj.z_disabled ) {
+ for ( j = 0; j < D; j++ ){
+ *out++ = 0.0;
+ *vec_sync++ = sync;
+ }
+ return (w+8); // must be index of "n" + 1
+ }
+ if( x->read_me ) {
+ for ( j = 0 ; j < Nw - D ; j++ ){
+ input[j] = input[j+D];
+ }
+ for ( j = Nw - D; j < Nw; j++ ) {
+ input[j] = *in++;
+ }
+
+ fold( input, Wanal, Nw, buffer, N, inCount );
+ rdft( N, 1, buffer, bitshuffle, trigland );
+
+ convert( buffer, tmpframe, N2, c_lastphase_in, c_fundamental, c_factor_in );
+
+ index_offset = (N+2) * frames_read;
+
+ for( i = index_offset, j = 0; i < index_offset + N + 2; i++, j++ ){
+ l_buf->b_samples[i] = tmpframe[j];
+ }
+
+ ++frames_read;
+ // output empty buffers while reading
+ sync = (float)frames_read/(float)(x->buffer_frame_count);
+
+ if(x->playthrough){
+ for ( i=0, j = Nw - D; j < Nw; j++, i++ ) {
+ out[i] = input[j];
+ vec_sync[j] = sync;
+ }
+ } else {
+ for ( j = 0; j < D; j++ ){
+ out[j] = 0.0;
+ vec_sync[j] = sync;
+ }
+ }
+
+ if( frames_read >= x->buffer_frame_count){
+ x->read_me = 0;
+ // post("resident_buffer: data acquisition completed");
+ }
+
+ } else if (x->mute ) {
+ // Process Muted
+ for ( j = 0; j < D; j++ ){
+ out[j] = 0.0;
+ vec_sync[j] = sync;
+ }
+ }
+ else {
+
+ if( fpos < 0 )
+ fpos = 0;
+ if( fpos > 1 )
+ fpos = 1;
+ if( fpos != last_fpos ){
+ fframe = fpos * (float) buffer_frame_count ;
+ last_fpos = fpos;
+ }
+
+
+ fframe += fincr;
+ while( fframe >= buffer_frame_count ) {
+ fframe -= buffer_frame_count;
+ }
+ while( fframe < 0. ) {
+ fframe += buffer_frame_count ;
+ }
+
+ index_offset = (N+2) * (int) fframe;
+
+ for( i = index_offset, j = 0; i < index_offset + N + 2; i++, j++ ){
+ tmpframe[j] = l_buf->b_samples[i];
+ }
+ // REPLACE loveboat with buffer
+ unconvert( tmpframe, buffer, N2, c_lastphase_out, c_fundamental, c_factor_out );
+
+ rdft( N, -1, buffer, bitshuffle, trigland );
+ overlapadd( buffer, N, Wsyn, output, Nw, inCount );
+
+ for ( j = 0; j < D; j++ ){
+ *out++ = output[j] * mult;
+ }
+ for ( j = 0; j < Nw - D; j++ ){
+ output[j] = output[j+D];
+ }
+
+ for ( j = Nw - D; j < Nw; j++ ){
+ output[j] = 0.;
+ vec_sync[0] = sync;
+ }
+ }
+
+ /* restore state variables */
+
+ x->inCount = inCount % Nw;
+ x->current_frame = fframe;
+ x->frame_increment = fincr;
+ x->fpos = fpos;
+ x->last_fpos = last_fpos;
+ x->frames_read = frames_read;
+ x->sync = sync;
+
+ return (w+8);
+}
+void resident_float(t_resident *x, double f) // Look at floats at inlets
+{
+ // int inlet = ((t_pxobject*)x)->z_in;
+ int inlet = x->x_obj.z_in;
+ if (inlet == 1)
+ {
+ x->frame_increment = f;
+ }
+ else if (inlet == 2)
+ {
+ if (f < 0 ){
+ f = 0;
+ } else if(f > 1) {
+ f = 1.;
+ }
+ x->fpos = f;
+
+ }
+}
+void resident_bangname ( t_resident *x )
+{
+ // int i, j;
+
+ x->read_me = 1;
+ x->frames_read = 0;
+ // post("resident_buffer: beginning spectral data acquisition");
+ return;
+
+}
+
+void resident_mute(t_resident *x, long toggle)
+{
+ x->mute = (short)toggle;
+}
+
+void resident_playthrough(t_resident *x, t_floatarg toggle)
+{
+ x->playthrough = (short)toggle;
+}
+
+void resident_winfac(t_resident *x, t_floatarg f)
+{
+ int i = (int)f;
+
+ if(!power_of_two(i)){
+ error("%f is not a power of two",f);
+ return;
+ }
+ x->winfac = i;
+ resident_init(x,2);
+}
+
+void resident_overlap(t_resident *x, t_floatarg f)
+{
+ int i = (int) f;
+ if(!power_of_two(i)){
+ error("%f is not a power of two",f);
+ return;
+ }
+ x->overlap = i;
+ resident_init(x,1);
+}
+
+
+void resident_dsp(t_resident *x, t_signal **sp, short *count)
+{
+ long i;
+ int buffer_samples;
+ t_buffer *b;
+
+ x->in2_connected = count[1];
+ x->in3_connected = count[2];
+
+ if(x->R != sp[0]->s_sr || x->D != sp[0]->s_n){
+ x->R = sp[0]->s_sr;
+ x->D = sp[0]->s_n;
+ resident_init(x,1);
+ }
+ /*
+ post("value of disabled is: %d",x->x_obj.z_disabled);
+ post("value of initialized is: %d",x->initialized);
+ */
+/* if(x->l_sym->s_name == ""){
+ post("this buffer was not even dignified with a name");
+ } */
+ /*
+ if(!x->l_sym->s_thing){
+ error("residency_buffer~: not linked to a valid buffer");
+ } */
+// else if(!x->initialized){
+
+ if ((b = (t_buffer *)(x->l_sym->s_thing)) && ob_sym(b) == gensym("buffer~")) {
+ x->l_buf = b;
+ x->initialized = 1;
+ if( x->l_buf->b_nchans != 1 ){
+ error("resident_buffer~: buffer \"%s\" must have 1 channel, not %d", x->l_sym->s_name, x->l_buf->b_nchans);
+ x->x_obj.z_disabled = 1;
+ }
+ }
+ else {
+ error("%s: buffer \"%s\" not found",OBJECT_NAME, x->l_sym->s_name);
+ x->x_obj.z_disabled = 1;
+ }
+
+ if( ! x->x_obj.z_disabled ){
+ x->buffer_frame_count = (float) (x->l_buf->b_frames) / (float)(x->N + 2 );
+ }
+
+// }
+
+
+ dsp_add(resident_perform, 7, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec,
+ sp[3]->s_vec, sp[4]->s_vec, sp[0]->s_n);
+
+}
+
+
+
+#endif /* PD */
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