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/*
test_libpd: test libpd by creating two Pd instances and running them
simultaneously. The test patch has a phasor~ object - in one instance
it runs forward, and in the other, backward.
*/
#include <stdio.h>
#include "z_libpd.h"
void pdprint(const char *s) {
printf("%s", s);
}
void pdnoteon(int ch, int pitch, int vel) {
printf("noteon: %d %d %d\n", ch, pitch, vel);
}
int main(int argc, char **argv) {
t_pdinstance *pd1, *pd2;
int srate = 48000;
/* one input channel, two output channels,
block size 64, one tick per buffer: */
float inbuf[64], outbuf[128];
char *filename = "test_libpd.pd", *dirname = ".";
/* accept overrides from the commandline:
$ pdtest_multi file.pd ../dir */
if (argc > 1) filename = argv[1];
if (argc > 2) dirname = argv[2];
/* maybe these two calls should be available per-instance somehow: */
libpd_set_printhook(pdprint);
libpd_set_noteonhook(pdnoteon);
libpd_init();
pd1 = libpd_new_instance();
pd2 = libpd_new_instance();
libpd_set_instance(pd1); /* talk to first pd instance */
libpd_init_audio(1, 2, srate);
/* send message: [; pd dsp 1( */
libpd_start_message(1); /* one entry in list */
libpd_add_float(1.0f);
libpd_finish_message("pd", "dsp");
/* open the file */
libpd_openfile(filename, dirname);
/* repeat this all for the second instance */
libpd_set_instance(pd2);
libpd_init_audio(1, 2, srate);
libpd_start_message(1);
libpd_add_float(1.0f);
libpd_finish_message("pd", "dsp");
libpd_openfile(filename, dirname);
libpd_set_instance(pd1);
/* [; pd frequency 480 ( */
libpd_start_message(1);
libpd_add_float(480.0f);
libpd_finish_message("frequency", "float");
libpd_set_instance(pd2);
/* [; pd frequency -480 ( */
libpd_start_message(1);
libpd_add_float(-480.0f);
libpd_finish_message("frequency", "float");
/* now run pd for 3 ticks */
int i, j;
for (i = 0; i < 3; i++)
{
libpd_set_instance(pd1);
libpd_process_float(1, inbuf, outbuf);
printf("instance 1, tick %d:\n", i);
for (j = 0; j < 8; j++)
printf("%f ", outbuf[j]);
printf("... \n");
libpd_set_instance(pd2);
libpd_process_float(1, inbuf, outbuf);
printf("instance 2, tick %d:\n", i);
for (j = 0; j < 8; j++)
printf("%f ", outbuf[j]);
printf("... \n");
}
libpd_free_instance(pd1);
libpd_free_instance(pd2);
return 0;
}
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