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#include "iemmatrix.h"
#define MTX_PACK_MAXCHANNELS 200
static t_class *mtx_unpack_tilde_class;
typedef struct _mtx_unpack_tilde {
t_object x_obj;
int rows;
int cols;
int block_size;
int num_chan;
t_float **sig_out;
t_atom *list_in;
t_int *(*perform_fcn)(t_int*);
} mtx_unpack_tilde;
static t_int *mTxUnPackTildePerform (t_int *arg) {
mtx_unpack_tilde *x = (mtx_unpack_tilde *) (arg[1]);
return (x->perform_fcn(arg));
}
static t_int *mTxUnPackTildePerformInactive (t_int *arg)
{
return(arg+2);
}
static t_int *mTxUnPackTildePerformSetInactive (t_int *arg)
{
mtx_unpack_tilde *x = (mtx_unpack_tilde *) (arg[1]);
int chan;
int samp;
t_atom *lptr=x->list_in;
for (chan=0; chan<x->num_chan; chan++) {
for (samp=0; samp<x->block_size; samp++) {
x->sig_out[chan][samp]=0;
}
lptr+=x->cols;
}
x->perform_fcn=mTxUnPackTildePerformInactive;
return(arg+2);
}
static t_int *mTxUnPackTildePerformActive (t_int *arg)
{
mtx_unpack_tilde *x = (mtx_unpack_tilde *) (arg[1]);
int chan;
int samp;
const int maxchan = (x->rows < x->num_chan) ? x->rows : x->num_chan;
const int maxsamp = (x->cols < x->block_size) ? x->cols : x->block_size;
t_atom *lptr=x->list_in;
for (chan=0; chan<maxchan; chan++) {
for (samp=0; samp<maxsamp; samp++) {
x->sig_out[chan][samp]=atom_getfloat(&lptr[samp]);
}
lptr+=x->cols;
}
// zero missing signal samples
lptr=x->list_in;
for (chan=0; chan<maxchan; chan++) {
for (; samp<x->block_size; samp++) {
x->sig_out[chan][samp]=0;
lptr+=x->cols;
}
}
// zero missing channels
for (chan=maxchan; chan<x->num_chan; chan++) {
for (samp=0; samp<x->block_size; samp++) {
x->sig_out[chan][samp]=0;
}
lptr+=x->cols;
}
// delete in the next dsp cycle, unless overwritten
// by new matrix:
x->perform_fcn=mTxUnPackTildePerformSetInactive;
return(arg+2);
}
void *newMtxUnPackTilde (t_floatarg f)
{
int num_chan=1;
mtx_unpack_tilde *x = (mtx_unpack_tilde*) pd_new(mtx_unpack_tilde_class);
num_chan=(int)f;
if ((num_chan<1) || (num_chan>MTX_PACK_MAXCHANNELS)) {
num_chan=1;
}
x->num_chan=num_chan;
x->sig_out=0;
x->list_in=0;
x->rows=0;
x->cols=0;
x->perform_fcn=mTxUnPackTildePerformInactive;
while (num_chan--) {
outlet_new(&x->x_obj, &s_signal);
}
x->sig_out = (t_float**)getbytes(sizeof(t_float*)*x->num_chan);
return (void *) x;
}
void deleteMtxUnPackTilde (mtx_unpack_tilde *x)
{
if (x->sig_out)
freebytes (x->sig_out, x->num_chan * sizeof (t_float));
}
static void mTxUnPackTildeMatrix (mtx_unpack_tilde *x, t_symbol *s, int argc, t_atom *argv) {
int rows, cols;
if (argc<2) {
post("[mtx_unpack~]: corrupt matrix passed!");
x->rows=0;
x->cols=0;
}
else {
rows=(int) atom_getfloat (argv++);
cols=(int) atom_getfloat (argv++);
argc-=2;
if ((rows<1)||(cols<1)||(rows*cols < argc)) {
post("[mtx_unpack~]: corrupt matrix passed!");
x->rows=0;
x->cols=0;
}
else {
x->rows=rows;
x->cols=cols;
x->list_in=argv;
x->perform_fcn=mTxUnPackTildePerformActive;
}
}
}
static void mTxUnPackTildeDsp (mtx_unpack_tilde *x, t_signal **sp)
{
int chan;
for (chan=0; chan<x->num_chan; chan++)
x->sig_out[chan]=sp[chan]->s_vec;
x->block_size=sp[0]->s_n;
x->perform_fcn=mTxUnPackTildePerformInactive;
dsp_add(mTxUnPackTildePerform,1,x);
}
void mtx_unpack_tilde_setup (void)
{
mtx_unpack_tilde_class = class_new(gensym("mtx_unpack~"), (t_newmethod)newMtxUnPackTilde, (t_method) deleteMtxUnPackTilde, sizeof(mtx_unpack_tilde), CLASS_DEFAULT, A_DEFFLOAT, 0);
class_addmethod (mtx_unpack_tilde_class, (t_method) mTxUnPackTildeMatrix, gensym("matrix"),A_GIMME,0);
class_addmethod (mtx_unpack_tilde_class, (t_method) mTxUnPackTildeDsp, gensym("dsp"),0);
}
void iemtx_unpack__setup(void)
{
mtx_unpack_tilde_setup();
}
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