int check_signals_d(size_t ns, const double* sig, const double* exg, const int32_t* tri)
{
size_t i=0;
int nchtri = grp[2].nch;
int neeg = grp[0].nch;
int nexg = grp[1].nch;
int ich;
double expval;
int32_t exptri, stateval = tri[0] & 0x00FF0000;
int retval = 0;
// Identify the beginning of the expected sequence
if (!checking) {
for (i=0; i<ns; i++)
if (tri[i] == get_trigger_val(0, stateval)) {
checking = 1;
break;
}
if (!checking && nsread > PERIOD) {
fprintf(stderr, "\tCannot find the beginning of the sequence\n");
retval = -1;
}
}
for (; i<ns && !retval; i++) {
// Verify the values in the analog channels
for (ich=0; ich<neeg && !retval; ich++) {
expval = get_analog_vald(nstot, ich, 0);
if (sig[i*neeg+ich] != expval) {
fprintf(stderr, "\tEEG value (%f) different from the one expected (%f) at sample %zu ch:%u\n", sig[i*neeg+ich], expval, i+nsread, ich);
retval = -1;
}
}
// Verify the values in the analog channels
for (ich=0; ich<nexg && !retval; ich++) {
expval = get_analog_vald(nstot, ich, 1);
if (exg[i*nexg+ich] != expval) {
fprintf(stderr, "\tEXG value (%f) different from the one expected (%f) at sample %zu ch:%u\n", exg[i*nexg+ich], expval, i+nsread, ich);
retval = -1;
}
}
// Verify the values in the trigger channels
for (ich=0; ich<nchtri && !retval; ich++) {
exptri = get_trigger_val(nstot, stateval);
if (tri[i] != exptri) {
fprintf(stderr, "\tTrigger value (0x%08x) different from the one expected (0x%08x) at sample %zu ch:%u\n", tri[i], exptri, i+nsread, ich);
retval = -1;
}
}
nstot++;
}
nsread += ns;
return retval;
}
API_EXPORTED
int GT_GetData( const char* device_name, unsigned char* buffer, gt_size num_samples )
{
unsigned int last, j, s, ns;
struct gtec_device* gtdev;
float* data = (float*)buffer;
int idev = 0;
gtdev = get_dev(device_name, &idev);
if (!gtdev)
return -1;
ns = num_samples/(sizeof(*data)*17);
last = gtdev->lastsample;
/*if (ns+last > 1024)
ns = 1024 - last;
if (ns <= 0)
exit(EXIT_FAILURE);
num_samples = ns * (sizeof(*data)*17);*/
for (s=0; s<ns; s++) {
for (j=0; j<16; j++)
data[s*17 + j] = get_analog_val(s+last, idev*16+j);
data[s*17+16] = get_trigger_val(s+last, idev);
}
gtdev->lastsample += ns;
return num_samples;
}