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#include <string.h>
#ifndef __pdoctave_get_c_
#define __pdoctave_get_c_
#include "pdoctave.h" /* writing a command to octave */
#include "pdoctave_dataframe.h"
#include "m_pd.h"
static t_class *pdoctave_get_class;
typedef struct _PDOctaveGet_ PDOctaveGet;
struct _PDOctaveGet_
{
t_object x_obj;
t_outlet *outlet;
SharedDataFrame *sdf;
char oct_command[150];
char *oct_name;
void *data;
int list_length;
t_atom *list;
};
static void *newPDOctaveGet (t_symbol *s, int argc, t_atom *argv)
{
PDOctaveGet *pdoctget_obj = (PDOctaveGet *)
pd_new (pdoctave_get_class);
t_symbol *name;
post("getpdoctaveinstances returned %d", getPDOctaveInstances());
if (getPDOctaveInstances()<1) {
error("Octave not running, insert a 'pdoctave' object!!");
return 0;
}
if (argc>0)
name = atom_getsymbol(argv);
else
name = gensym ("pdm1");
if ((pdoctget_obj->sdf = newSharedDataFrame ())==0) {
error("pdoctave_get: failed to get shared memory");
return 0;
}
pdoctget_obj->data = 0;
pdoctget_obj->oct_name = name->s_name;
pdoctget_obj->outlet = outlet_new (&pdoctget_obj->x_obj, 0);
return ((void *) pdoctget_obj);
}
static void pDOctaveGetCommand (PDOctaveGet *pdoctget_obj)
{
char *cmd;
cmd = pdoctget_obj->oct_command;
strcpy(cmd, "try\n write_shared_mem(");
cmd += strlen(cmd);
strcpy(cmd, pdoctget_obj->oct_name);
cmd += strlen (cmd);
*cmd++ = ',';
sprintf(cmd, "%d", getSharedDataFrameId(pdoctget_obj->sdf));
cmd += strlen(cmd);
strcpy (cmd, ");\n catch\n disp(\"undefined variable\"); write_shared_mem(");
cmd += strlen(cmd);
strcpy (cmd, "[],");
cmd +=strlen(cmd);
sprintf(cmd, "%d", getSharedDataFrameId(pdoctget_obj->sdf));
cmd +=strlen(cmd);
strcpy (cmd,");\n end\n\0");
post("pdoctave_get: %s",pdoctget_obj->oct_command);
writeToOctaveStdIN (pdoctget_obj->oct_command);
}
static void copyFloats (float *f, t_atom *a, int n)
{
for (;n--;a++,f++)
SETFLOAT (a, *f);
}
static void outletListAllocation (PDOctaveGet *pdoctget_obj, int newsize)
{
if (newsize != pdoctget_obj->list_length) {
if (newsize > 0) {
if (pdoctget_obj->list_length > 0) {
pdoctget_obj->list = (t_atom *)
resizebytes (pdoctget_obj->list,
sizeof(t_atom) * pdoctget_obj->list_length,
sizeof(t_atom) * newsize);
pdoctget_obj->list_length = newsize;
}
else {
pdoctget_obj->list = (t_atom *) getbytes (sizeof(t_atom) * newsize);
pdoctget_obj->list_length = newsize;
}
}
else if (newsize == 0) {
freebytes (pdoctget_obj->list, sizeof(t_atom) * pdoctget_obj->list_length);
pdoctget_obj->list = 0;
pdoctget_obj->list_length = 0;
}
}
}
static void pdoctaveConvertData (PDOctaveGet *pdoctget_obj)
{
int size = getSharedDataVecLength(pdoctget_obj->sdf);
t_symbol *s;
switch (getSharedDataType (pdoctget_obj->sdf)) {
case FLOAT:
case MATRIX:
case LIST:
outletListAllocation (pdoctget_obj, size);
copyFloats ((float *) pdoctget_obj->data, pdoctget_obj->list, size);
break;
case SYMBOL:
size = 1;
outletListAllocation (pdoctget_obj, 1);
s = gensym((char*)pdoctget_obj->data);
SETSYMBOL (pdoctget_obj->list, s);
break;
case UNKNOWN:
post("pdoctave_get: unknown return value");
}
removeSharedData (pdoctget_obj->sdf, &(pdoctget_obj->data));
}
static void pdoctaveOutletList (PDOctaveGet *pdoctget_obj)
{
t_symbol *s;
switch (getSharedDataType (pdoctget_obj->sdf)) {
case FLOAT:
s = gensym("float");
break;
case LIST:
s = gensym("list");
break;
case MATRIX:
s = gensym("matrix");
break;
case SYMBOL:
s = gensym("symbol");
break;
case UNKNOWN:
post("pdoctave_get: unknown return value");
return;
}
outlet_anything (pdoctget_obj->outlet,
s, pdoctget_obj->list_length, pdoctget_obj->list);
}
static void pDOctaveGetBang (PDOctaveGet *pdoctget_obj)
{
SharedDataFrame *sdf;
sdf = pdoctget_obj->sdf;
if((sleepUntilReadUnBlocked (sdf))==0) {
error("pdoctave_get: pd and octave scheduling error, restart pd!");
return;
}
blockForReading (sdf);
// sending read command
blockForWriting (sdf);
pDOctaveGetCommand (pdoctget_obj);
if((sleepUntilWriteUnBlocked (sdf))==0) {
error("pdoctave_get: pd and octave scheduling error, restart pd!");
return;
}
// waiting for results
pdoctget_obj->data = getSharedData (sdf);
// converting incoming data
pdoctaveConvertData (pdoctget_obj);
unBlockForReading (sdf);
// outletting data
pdoctaveOutletList (pdoctget_obj);
}
static void deletePDOctaveGet (PDOctaveGet *pdoctget_obj)
{
removeSharedData (pdoctget_obj->sdf, &(pdoctget_obj->data));
removeSharedDataFrame (&(pdoctget_obj->sdf));
}
void pdoctave_get_setup (void)
{
pdoctave_get_class = class_new
(gensym("pdoctave_get"),
(t_newmethod) newPDOctaveGet,
(t_method) deletePDOctaveGet,
sizeof (PDOctaveGet),
CLASS_DEFAULT, A_GIMME, 0);
class_addbang (pdoctave_get_class, (t_method) pDOctaveGetBang);
post("pdoctave_get successfully loaded");
}
#endif
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