/*{{{ write_synamps_exit(transform_info_ptr tinfo) {*/
METHODDEF void
write_synamps_exit(transform_info_ptr tinfo) {
struct write_synamps_storage *local_arg=(struct write_synamps_storage *)tinfo->methods->local_storage;
#define SETUP_OFFSET_NSWEEPS 360
#define SETUP_OFFSET_NUMSAMPLES 864
#define SETUP_OFFSET_EVENTTABLEPOS 886
/* Apparently NeuroScan write this even for epoched files although there's no event table there...
* It is important there to compute bytes_per_sample */
local_arg->EEG.EventTablePos=ftell(local_arg->SCAN);
if (local_arg->output_format==FORMAT_CNTFILE) {
TEEG TagType;
EVENT1 event;
int const nevents=local_arg->triggers.current_length/sizeof(struct trigger);
int n;
TagType.Teeg=TEEG_EVENT_TAB1;
TagType.Size=(nevents+1)*sm_EVENT1[0].offset; /* sm_EVENT1[0].offset is sizeof(EVENT1) in the file. */
TagType.p_o.Offset=0L;
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&TagType, sm_TEEG);
# endif
write_struct((char *)&TagType, sm_TEEG, local_arg->SCAN);
for (n=0; n<nevents; n++) {
struct trigger * const intrig=((struct trigger *)local_arg->triggers.buffer_start)+n;
int acc=NAV_STARTSTOP, type=0, resp=0, keyboard=0;
while (acc>=0 && intrig->code!=neuroscan_accept_translation[acc]) acc--;
if (acc<0) {
acc=0;
if (intrig->code>0) {
type=intrig->code;
} else {
resp=(-intrig->code)&0xf;
if (resp==0) {
keyboard=(-intrig->code)>>4;
if (keyboard==0) {
TRACEMS1(tinfo->emethods, 1, "write_synamps_exit: Can't decipher event code %d\n", MSGPARM(intrig->code));
} else {
keyboard--;
}
}
}
}
/*{{{ write_rec_close_file(transform_info_ptr tinfo) {*/
LOCAL void
write_rec_close_file(transform_info_ptr tinfo) {
struct write_rec_storage *local_arg=(struct write_rec_storage *)tinfo->methods->local_storage;
char numbuf[NUMBUF_LENGTH];
snprintf(numbuf, NUMBUF_LENGTH, "%ld", local_arg->nr_of_records);
memset(&local_arg->fheader.nr_of_records, ' ', sizeof(local_arg->fheader.nr_of_records));
copy_nstring(local_arg->fheader.nr_of_records, numbuf, sizeof(local_arg->fheader.nr_of_records));
fseek(local_arg->outfptr, 0L, SEEK_SET);
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->fheader, sm_REC_file);
#endif
write_struct((char *)&local_arg->fheader, sm_REC_file, local_arg->outfptr);
if (local_arg->outfptr!=stdout && local_arg->outfptr!=stderr) {
fclose(local_arg->outfptr);
} else {
fflush(local_arg->outfptr);
}
}
/*{{{ write_synamps_init(transform_info_ptr tinfo) {*/
METHODDEF void
write_synamps_init(transform_info_ptr tinfo) {
struct write_synamps_storage *local_arg=(struct write_synamps_storage *)tinfo->methods->local_storage;
transform_argument *args=tinfo->methods->arguments;
double xmin, xmax, ymin, ymax;
int NoOfChannels=tinfo->nr_of_channels;
int channel;
growing_buf_init(&local_arg->triggers);
local_arg->output_format=(args[ARGS_OUTPUTFORMAT].is_set ? (enum output_formats)args[ARGS_OUTPUTFORMAT].arg.i : FORMAT_EEGFILE);
local_arg->SCAN=fopen(args[ARGS_OFILE].arg.s, "r+b");
if (!args[ARGS_APPEND].is_set || local_arg->SCAN==NULL) { /* target does not exist*/
/*{{{ Create file*/
if (local_arg->SCAN!=NULL) fclose(local_arg->SCAN);
/*{{{ Calculate the span in x-y channel positions*/
xmin=ymin= FLT_MAX;
xmax=ymax= -FLT_MAX;
for (channel=0; channel<tinfo->nr_of_channels; channel++) {
const double this_x=tinfo->probepos[3*channel], this_y=tinfo->probepos[3*channel+1];
if (this_x>xmax) xmax=this_x;
if (this_x<xmin) xmin=this_x;
if (this_y>ymax) ymax=this_y;
if (this_y<ymin) ymin=this_y;
}
if (xmax==xmin) {
xmax+=0.5;
xmin-=0.5;
}
if (ymax==ymin) {
ymax+=0.5;
ymin-=0.5;
}
/*}}} */
if ((local_arg->SCAN=fopen(args[ARGS_OFILE].arg.s, "wb"))==NULL) {
ERREXIT1(tinfo->emethods, "write_synamps_init: Can't open %s\n", MSGPARM(args[ARGS_OFILE].arg.s));
}
/*{{{ Many settings, taken from example files...*/
strcpy(local_arg->EEG.rev, "Version 3.0");
local_arg->EEG.AdditionalFiles=local_arg->EEG.NextFile=local_arg->EEG.PrevFile=0;
switch (local_arg->output_format) {
case FORMAT_EEGFILE:
local_arg->EEG.review = 1;
local_arg->EEG.savemode=NSM_EEGF;
local_arg->EEG.type = NTY_EPOCHED;
local_arg->EEG.ContinousType=0;
local_arg->EEG.nsweeps=local_arg->EEG.compsweeps=local_arg->EEG.acceptcnt=0;
break;
case FORMAT_CNTFILE:
local_arg->EEG.review = 1;
local_arg->EEG.savemode=NSM_CONT;
local_arg->EEG.type = 0;
local_arg->EEG.ContinousType=NST_SYNAMPS-NST_CONT0;
local_arg->EEG.nsweeps=1;
local_arg->EEG.compsweeps=local_arg->EEG.acceptcnt=0;
break;
case FORMAT_AVGFILE:
local_arg->EEG.review = 0;
local_arg->EEG.savemode=NSM_AVGD;
local_arg->EEG.type = NTY_AVERAGED;
local_arg->EEG.ContinousType=0;
local_arg->EEG.nsweeps=local_arg->EEG.compsweeps=local_arg->EEG.acceptcnt=(tinfo->nrofaverages>0 ? tinfo->nrofaverages : 1);
break;
}
/* Since the comment can be of arbitrary length and thus also larger than the
* rest of the header, we should limit ourselves to the size of the id field */
strncpy(local_arg->EEG.id, tinfo->comment, sizeof(local_arg->EEG.id));
/* The date is coded in the comment, and read_synamps appends the date and time
* from the corresponding fields and the contents of the id field, so that
* the comment2time reader could be confused by the two date/time fields if we
* would not somehow invalidate remnants of the date field here... */
{char *slash;
while ((slash=strchr(local_arg->EEG.id, '/'))!=NULL) {
*slash='|';
}
}
strcpy(local_arg->EEG.oper, "Unspecified");
strcpy(local_arg->EEG.doctor, "Unspecified");
strcpy(local_arg->EEG.referral, "Unspecified");
strcpy(local_arg->EEG.hospital, "Unspecified");
strcpy(local_arg->EEG.patient, "Unspecified");
local_arg->EEG.age = 0;
local_arg->EEG.sex = 'U';
local_arg->EEG.hand = 'U';
strcpy(local_arg->EEG.med, "Unspecified");
strcpy(local_arg->EEG.category, "Unspecified");
strcpy(local_arg->EEG.state, "Unspecified");
strcpy(local_arg->EEG.label, "Unspecified");
{short dd, mm, yy, yyyy, hh, mi, ss;
if (comment2time(tinfo->comment, &dd, &mm, &yy, &yyyy, &hh, &mi, &ss)) {
char buffer[16]; /* Must be long enough to fit date (10) and time (12) +1 */
/* This is necessary because the date field was devised for 2-digit years.
* With 4-digit years it uses all 10 bytes and the trailing zero
* does not fit in any more. */
snprintf(buffer, 16, "%02d/%02d/%04d", mm, dd, yyyy);
strncpy(local_arg->EEG.date, buffer, sizeof(local_arg->EEG.date));
snprintf(buffer, 16, "%02d:%02d:%02d", hh, mi, ss);
strncpy(local_arg->EEG.time, buffer, sizeof(local_arg->EEG.time));
}
}
local_arg->EEG.rejectcnt = 0;
local_arg->EEG.pnts=(tinfo->data_type==FREQ_DATA ? tinfo->nroffreq : tinfo->nr_of_points);
local_arg->EEG.nchannels=NoOfChannels;
local_arg->EEG.avgupdate=1;
local_arg->EEG.domain=(tinfo->data_type==FREQ_DATA ? 1 : 0);
local_arg->EEG.variance=0;
local_arg->EEG.rate=(uint16_t)rint(tinfo->sfreq);
if (tinfo->data_type==FREQ_DATA) {
/* I know that this field is supposed to contain the taper window size in %,
but we need some way to store basefreq and 'rate' is only integer... */
local_arg->EEG.SpectWinLength=tinfo->basefreq;
}
if (local_arg->EEG.rate==0) {
local_arg->EEG.rate=1;
TRACEMS(tinfo->emethods, 0, "write_synamps_init: Rate was zero, corrected to 1!\n");
}
local_arg->EEG.scale=3.4375; /* This is a common sensitivity factor, used if sensitivities for channels are zero */
local_arg->EEG.veogcorrect=0;
local_arg->EEG.heogcorrect=0;
local_arg->EEG.aux1correct=0;
local_arg->EEG.aux2correct=0;
local_arg->EEG.veogtrig=15; /* Trigger threshold in percent of the maximum */
local_arg->EEG.heogtrig=10;
local_arg->EEG.aux1trig=10;
local_arg->EEG.aux2trig=10;
local_arg->EEG.veogchnl=find_channel_number(tinfo, "VEOG");
local_arg->EEG.heogchnl=find_channel_number(tinfo, "HEOG");
local_arg->EEG.veogdir=0; /* 0=positive, 1=negative */
local_arg->EEG.veog_n=10; /* "Number of points per waveform", really: minimum acceptable # averages */
local_arg->EEG.heog_n=10;
local_arg->EEG.veogmaxcnt=(int16_t)rint(0.3*tinfo->sfreq); /* "Number of observations per point", really: event window size in points */
local_arg->EEG.heogmaxcnt=(int16_t)rint(0.5*tinfo->sfreq);
local_arg->EEG.AmpSensitivity=10; /* External Amplifier gain */
local_arg->EEG.baseline=0;
local_arg->EEG.reject=0;
local_arg->EEG.trigtype=2; /* 2=Port */
local_arg->EEG.trigval=255; /* Hold */
local_arg->EEG.dir=0; /* Invert (negative up)=0 */
local_arg->EEG.dispmin= -1; /* displayed y range */
local_arg->EEG.dispmax= +1;
local_arg->EEG.DisplayXmin=local_arg->EEG.AutoMin=local_arg->EEG.rejstart=local_arg->EEG.offstart=local_arg->EEG.xmin= -tinfo->beforetrig/tinfo->sfreq;
local_arg->EEG.DisplayXmax=local_arg->EEG.AutoMax=local_arg->EEG.rejstop=local_arg->EEG.offstop=local_arg->EEG.xmax= tinfo->aftertrig/tinfo->sfreq;
local_arg->EEG.zmin=0.0;
local_arg->EEG.zmax=0.1;
strcpy(local_arg->EEG.ref, "A1-A2");
strcpy(local_arg->EEG.screen, "--------");
local_arg->EEG.CalMode=2;
local_arg->EEG.CalMethod=0;
local_arg->EEG.CalUpdate=1;
local_arg->EEG.CalBaseline=0;
local_arg->EEG.CalSweeps=5;
local_arg->EEG.CalAttenuator=1;
local_arg->EEG.CalPulseVolt=1;
local_arg->EEG.CalPulseStart=0;
local_arg->EEG.CalPulseStop=0;
local_arg->EEG.CalFreq=10;
strcpy(local_arg->EEG.taskfile, "--------");
strcpy(local_arg->EEG.seqfile, "--------"); /* Otherwise tries to read a seqfile */
local_arg->EEG.HeadGain=150;
local_arg->EEG.FspFValue=2.5;
local_arg->EEG.FspBlockSize=200;
local_arg->EEG.fratio=1.0;
local_arg->EEG.minor_rev=12; /* Necessary ! Otherwise a different file structure is assumed... */
local_arg->EEG.eegupdate=1;
local_arg->EEG.xscale=local_arg->EEG.yscale=0;
local_arg->EEG.xsize=40;
local_arg->EEG.ysize=20;
local_arg->EEG.ACmode=0;
local_arg->EEG.XScaleValue=XSCALEVALUE;
local_arg->EEG.XScaleInterval=XSCALEINTERVAL;
local_arg->EEG.YScaleValue=YSCALEVALUE;
local_arg->EEG.YScaleInterval=YSCALEINTERVAL;
local_arg->EEG.ScaleToolX1=20;
local_arg->EEG.ScaleToolY1=170;
local_arg->EEG.ScaleToolX2=23.1535;
local_arg->EEG.ScaleToolY2=153.87;
local_arg->EEG.port=715;
local_arg->EEG.NumSamples=0;
local_arg->EEG.FilterFlag=0;
local_arg->EEG.LowCutoff=4;
local_arg->EEG.LowPoles=2;
local_arg->EEG.HighCutoff=50;
local_arg->EEG.HighPoles=2;
local_arg->EEG.FilterType=3;
local_arg->EEG.FilterDomain=1;
local_arg->EEG.SnrFlag=0;
local_arg->EEG.CoherenceFlag=0;
local_arg->EEG.ContinousSeconds=4;
local_arg->EEG.ChannelOffset=sizeof(int16_t);
local_arg->EEG.AutoCorrectFlag=0;
local_arg->EEG.DCThreshold='F';
/*}}} */
/*{{{ Write SETUP structure*/
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->EEG, sm_SETUP);
# endif
write_struct((char *)&local_arg->EEG, sm_SETUP, local_arg->SCAN);
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->EEG, sm_SETUP);
# endif
/*}}} */
if ((local_arg->Channels=(ELECTLOC *)calloc(NoOfChannels,sizeof(ELECTLOC)))==NULL) {
ERREXIT(tinfo->emethods, "write_synamps_init: Error allocating Channels list\n");
}
for (channel=0; channel<NoOfChannels; channel++) {
/*{{{ Settings in the channel structure*/
strncpy(local_arg->Channels[channel].lab, tinfo->channelnames[channel],sizeof(local_arg->Channels[channel].lab));
local_arg->Channels[channel].reference=0;
local_arg->Channels[channel].skip=0;
local_arg->Channels[channel].reject=0;
local_arg->Channels[channel].display=1;
local_arg->Channels[channel].bad=0;
local_arg->Channels[channel].n=(local_arg->output_format==FORMAT_AVGFILE ? local_arg->EEG.acceptcnt : (local_arg->output_format==FORMAT_CNTFILE ? 0 : 1));
local_arg->Channels[channel].avg_reference=0;
local_arg->Channels[channel].ClipAdd=0;
local_arg->Channels[channel].x_coord= (tinfo->probepos[3*channel ]-xmin)/(xmax-xmin)*RANGE_TO_COVER+XOFFSET;
local_arg->Channels[channel].y_coord=((ymax-tinfo->probepos[3*channel+1])/(ymax-ymin)*RANGE_TO_COVER+YOFFSET)/3;
local_arg->Channels[channel].veog_wt=0;
local_arg->Channels[channel].veog_std=0;
local_arg->Channels[channel].heog_wt=0;
local_arg->Channels[channel].heog_std=0;
local_arg->Channels[channel].baseline=0;
local_arg->Channels[channel].Filtered=0;
local_arg->Channels[channel].sensitivity=204.8/args[ARGS_CONVFACTOR].arg.d; /* This arranges for conv_factor to act as the expected product before integer truncation */
local_arg->Channels[channel].Gain=5;
local_arg->Channels[channel].HiPass=0; /* 0=DC */
local_arg->Channels[channel].LoPass=4;
local_arg->Channels[channel].Page=0;
local_arg->Channels[channel].Size=0;
local_arg->Channels[channel].Impedance=0;
local_arg->Channels[channel].PhysicalChnl=channel; /* Channel mapping */
local_arg->Channels[channel].Rectify=0;
local_arg->Channels[channel].calib=1.0;
/*}}} */
/*{{{ Write ELECTLOC struct*/
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->Channels[channel], sm_ELECTLOC);
# endif
write_struct((char *)&local_arg->Channels[channel], sm_ELECTLOC, local_arg->SCAN);
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->Channels[channel], sm_ELECTLOC);
# endif
/*}}} */
}
local_arg->SizeofHeader = ftell(local_arg->SCAN);
TRACEMS2(tinfo->emethods, 1, "write_synamps_init: Creating file %s, format `%s'\n", MSGPARM(args[ARGS_OFILE].arg.s), MSGPARM(neuroscan_subtype_names[NEUROSCAN_SUBTYPE(&local_arg->EEG)]));
/*}}} */
} else {
/*{{{ Append to file*/
enum NEUROSCAN_SUBTYPES SubType;
if (read_struct((char *)&local_arg->EEG, sm_SETUP, local_arg->SCAN)==0) {
ERREXIT(tinfo->emethods, "write_synamps_init: Can't read file header.\n");
}
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->EEG, sm_SETUP);
# endif
NoOfChannels = local_arg->EEG.nchannels;
/*{{{ Allocate channel header*/
if ((local_arg->Channels=(ELECTLOC *)malloc(NoOfChannels*sizeof(ELECTLOC)))==NULL) {
ERREXIT(tinfo->emethods, "write_synamps_init: Error allocating Channels list\n");
}
/*}}} */
for (channel=0; channel<NoOfChannels; channel++) {
if (read_struct((char *)&local_arg->Channels[channel], sm_ELECTLOC, local_arg->SCAN)==0) {
ERREXIT(tinfo->emethods, "write_synamps_init: Can't read channel headers.\n");
}
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->Channels[channel], sm_ELECTLOC);
# endif
}
local_arg->SizeofHeader = ftell(local_arg->SCAN);
SubType=NEUROSCAN_SUBTYPE(&local_arg->EEG);
switch (SubType) {
case NST_EPOCHS:
if (local_arg->output_format!=FORMAT_EEGFILE) {
TRACEMS(tinfo->emethods, 0, "write_synamps_init: Appending to epoch file, discarding option -c\n");
local_arg->output_format=FORMAT_EEGFILE;
}
fseek(local_arg->SCAN, 0, SEEK_END);
break;
case NST_CONTINUOUS:
case NST_SYNAMPS: {
TEEG TagType;
EVENT1 event;
if (local_arg->output_format!=FORMAT_CNTFILE) {
TRACEMS(tinfo->emethods, 0, "write_synamps_init: Appending to continuous file, assuming option -c\n");
local_arg->output_format=FORMAT_CNTFILE;
}
fseek(local_arg->SCAN, local_arg->EEG.EventTablePos, SEEK_SET);
/* Here we face two evils in one header: Coding enums as chars and
* allowing longs at odd addresses. Well... */
if (1==read_struct((char *)&TagType, sm_TEEG, local_arg->SCAN)) {
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&TagType, sm_TEEG);
# endif
if (TagType.Teeg==TEEG_EVENT_TAB1) {
/*{{{ Read the event table*/
int tag;
int const ntags=TagType.Size/sm_EVENT1[0].offset; /* sm_EVENT1[0].offset is sizeof(EVENT1) in the file. */
for (tag=0; tag<ntags; tag++) {
if (1!=read_struct((char *)&event, sm_EVENT1, local_arg->SCAN)) {
ERREXIT(tinfo->emethods, "write_synamps_init: Can't read an event table entry.\n");
break;
}
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&event, sm_EVENT1);
# endif
{
int const TrigVal=event.StimType &0xff;
int const KeyBoard=event.KeyBoard&0xf;
int const KeyPad=Event_KeyPad_value(event);
int const Accept=Event_Accept_value(event);
int code=TrigVal-KeyPad+neuroscan_accept_translation[Accept];
if (code==0) {
code= -((KeyBoard+1)<<4);
}
push_trigger(&local_arg->triggers,offset2point(tinfo, event.Offset),code,NULL);
}
}
/*}}} */
} else {
ERREXIT(tinfo->emethods, "write_synamps_init: Type 2 events are not yet supported.\n");
}
} else {
ERREXIT(tinfo->emethods, "write_synamps_init: Can't read the event table header.\n");
}
fseek(local_arg->SCAN, local_arg->EEG.EventTablePos, SEEK_SET);
}
break;
default:
ERREXIT1(tinfo->emethods, "write_synamps: Cannot append to file type `%s'\n", MSGPARM(neuroscan_subtype_names[SubType]));
break;
}
/* Conformance to the incoming epochs is checked in write_synamps */
TRACEMS1(tinfo->emethods, 1, "write_synamps_init: Appending to file %s\n", MSGPARM(args[ARGS_OFILE].arg.s));
/*}}} */
}
tinfo->methods->init_done=TRUE;
}
/*{{{ write_synamps(transform_info_ptr tinfo) {*/
METHODDEF DATATYPE *
write_synamps(transform_info_ptr calltinfo) {
struct write_synamps_storage *local_arg=(struct write_synamps_storage *)calltinfo->methods->local_storage;
transform_argument *args=calltinfo->methods->arguments;
NEUROSCAN_EPOCHED_SWEEP_HEAD sweephead;
long tsdata_step, tsdata_steps, tsdata_stepwidth;
array myarray;
/* Note that 'tinfo' instead of 'tinfoptr' is used here so that we don't have to modify
* all of the older code which stored only one epoch */
transform_info_ptr tinfo=calltinfo;
if (args[ARGS_LINKED].is_set) {
/* Go to the start: */
for (; tinfo->previous!=NULL; tinfo=tinfo->previous);
}
for (; tinfo!=NULL; tinfo=tinfo->next) {
DATATYPE * const orig_tsdata=tinfo->tsdata;
/*{{{ Assert that epoch size didn't change & itemsize==1*/
if (tinfo->itemsize!=1) {
ERREXIT(tinfo->emethods, "write_synamps: Only itemsize=1 is supported.\n");
}
if (local_arg->EEG.nchannels!=tinfo->nr_of_channels) {
ERREXIT2(tinfo->emethods, "write_synamps: nr_of_channels was %d, now %d\n", MSGPARM(local_arg->EEG.nchannels), MSGPARM(tinfo->nr_of_channels));
}
/*}}} */
if (tinfo->data_type==FREQ_DATA) {
tinfo->nr_of_points=tinfo->nroffreq;
tsdata_steps=tinfo->nrofshifts;
tsdata_stepwidth=tinfo->nr_of_channels*tinfo->nroffreq*tinfo->itemsize;
} else {
tsdata_steps=1;
tsdata_stepwidth=0;
}
for (tsdata_step=0; tsdata_step<tsdata_steps; tinfo->tsdata+=tsdata_stepwidth, tsdata_step++) {
switch (local_arg->output_format) {
case FORMAT_EEGFILE:
if (local_arg->EEG.pnts!=tinfo->nr_of_points) {
ERREXIT2(tinfo->emethods, "write_synamps: nr_of_points was %d, now %d\n", MSGPARM(local_arg->EEG.pnts), MSGPARM(tinfo->nr_of_points));
}
/*{{{ Set sweephead values*/
sweephead.accept=1;
sweephead.type=254;
sweephead.correct=0;
sweephead.rt=0;
sweephead.response=0;
if (tinfo->condition>0) {
sweephead.type=tinfo->condition&0xff;
} else if (tinfo->condition<0 && (-tinfo->condition)<=0xf) {
sweephead.type=0;
sweephead.response= -tinfo->condition;
} else {
/* KeyBoard event: Do it the same way 'Edit' does when epoching,
* mapping F1 to type=1 and so on (overlap with stim codes, but they
* should know how they want it...) */
sweephead.type= (-tinfo->condition)>>4;
}
/*}}} */
/*{{{ Write sweephead struct*/
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&sweephead, sm_NEUROSCAN_EPOCHED_SWEEP_HEAD);
# endif
write_struct((char *)&sweephead, sm_NEUROSCAN_EPOCHED_SWEEP_HEAD, local_arg->SCAN);
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&sweephead, sm_NEUROSCAN_EPOCHED_SWEEP_HEAD);
# endif
/*}}} */
local_arg->EEG.nsweeps++; /* This gets patched into the header by write_synamps_exit */
local_arg->EEG.compsweeps++;
local_arg->EEG.acceptcnt++;
break;
case FORMAT_AVGFILE:
if (local_arg->EEG.NumSamples!=0) {
ERREXIT(tinfo->emethods, "write_synamps: Only a single epoch may be written to an .AVG file!\n");
}
case FORMAT_CNTFILE:
if (tinfo->triggers.buffer_start!=NULL) {
struct trigger *intrig=(struct trigger *)tinfo->triggers.buffer_start+1;
while (intrig->code!=0) {
push_trigger(&local_arg->triggers,local_arg->EEG.NumSamples+intrig->position,intrig->code,intrig->description);
intrig++;
}
}
local_arg->EEG.NumSamples+=tinfo->nr_of_points;
break;
}
tinfo_array(tinfo, &myarray);
if (local_arg->output_format==FORMAT_AVGFILE) {
/* points are the elements */
float *pdata, * const buffer=(float *)malloc(myarray.nr_of_elements*sizeof(float));
const char *fill="\0\0\0\0\0";
if (buffer==NULL) {
ERREXIT(tinfo->emethods, "write_synamps: Error allocating AVGFILE buffer\n");
}
do {
int const channel=myarray.current_vector;
/* Write the `5-byte channel header that is no longer used' */
fwrite(fill, 1, 5, local_arg->SCAN);
pdata=buffer;
do {
*pdata=NEUROSCAN_FLOATCONV(&local_arg->Channels[channel], array_scan(&myarray));
# ifndef LITTLE_ENDIAN
Intel_float(pdata);
# endif
pdata++;
} while (myarray.message==ARRAY_CONTINUE);
if ((int)fwrite(buffer,sizeof(float),myarray.nr_of_elements,local_arg->SCAN)!=myarray.nr_of_elements) {
ERREXIT(tinfo->emethods, "write_synamps: Error writing data point\n");
}
} while (myarray.message!=ARRAY_ENDOFSCAN);
free(buffer);
} else {
int16_t * const buffer=(int16_t *)malloc(myarray.nr_of_vectors*sizeof(int16_t));
if (buffer==NULL) {
ERREXIT(tinfo->emethods, "write_synamps: Error allocating buffer\n");
}
array_transpose(&myarray); /* channels are the elements */
do {
int channel=0;
do {
DATATYPE hold=array_scan(&myarray), hold2;
/* Code anything exceeding the representable range, including +-Inf, as min/max representable value. */
hold2=NEUROSCAN_SHORTCONV(&local_arg->Channels[channel], hold);
if (hold2< -32768) hold2= -32768;
else if (hold2> 32767) hold2= 32767;
buffer[channel]=(int16_t)hold2;
# ifndef LITTLE_ENDIAN
Intel_int16(&buffer[channel]);
# endif
channel++;
} while (myarray.message==ARRAY_CONTINUE);
if ((int)fwrite(buffer,sizeof(int16_t),myarray.nr_of_elements,local_arg->SCAN)!=myarray.nr_of_elements) {
ERREXIT(tinfo->emethods, "write_synamps: Error writing data point\n");
}
} while (myarray.message!=ARRAY_ENDOFSCAN);
free(buffer);
}
} /* FREQ_DATA shifts loop */
tinfo->tsdata=orig_tsdata;
if (!args[ARGS_LINKED].is_set) {
break;
}
} /* Linked epochs loop */
return calltinfo->tsdata; /* Simply to return something `useful' */
}
/*{{{ write_rec_open_file(transform_info_ptr tinfo) {*/
LOCAL void
write_rec_open_file(transform_info_ptr tinfo) {
struct write_rec_storage *local_arg=(struct write_rec_storage *)tinfo->methods->local_storage;
transform_argument *args=tinfo->methods->arguments;
FILE *outfptr=NULL;
if (strcmp(args[ARGS_OFILE].arg.s, "stdout")==0) outfptr=stdout;
else if (strcmp(args[ARGS_OFILE].arg.s, "stderr")==0) outfptr=stderr;
local_arg->appendmode=args[ARGS_APPEND].is_set;
if (local_arg->appendmode) {
/*{{{ Append mode open if cofile exists and is of non-zero length*/
if (outfptr==NULL) {
if ((outfptr=fopen(args[ARGS_OFILE].arg.s, "r+b"))!=NULL) {
fseek(outfptr, 0L, SEEK_END);
if (ftell(outfptr)==0L) {
local_arg->appendmode=FALSE; /* If at start: write header */
}
}
}
/*}}} */
}
if (outfptr==NULL) {
/*{{{ Open the REC file in truncate mode*/
local_arg->appendmode=FALSE; /* write header */
if ((outfptr=fopen(args[ARGS_OFILE].arg.s, "wb"))==NULL) {
ERREXIT1(tinfo->emethods, "write_rec_open_file: Can't open %s\n", MSGPARM(args[ARGS_OFILE].arg.s));
}
/*}}} */
}
local_arg->outfptr=outfptr;
if (local_arg->appendmode) {
/* Read rather than write header in append mode */
fseek(outfptr, 0L, SEEK_SET);
if (read_struct((char *)&local_arg->fheader, sm_REC_file, outfptr)==0) {
ERREXIT1(tinfo->emethods, "write_rec_open_file: Can't read header in file %s\n", MSGPARM(args[ARGS_OFILE].arg.s));
}
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->fheader, sm_REC_file);
# endif
local_arg->nr_of_records=atoi(local_arg->fheader.nr_of_records);
fseek(outfptr, 0L, SEEK_END);
} else {
/*{{{ Write header*/
REC_channel_header channelheader;
const long channelheader_length=CHANNELHEADER_SIZE_PER_CHANNEL*tinfo->nr_of_channels;
int channel;
short dd, mm, yy, yyyy, hh, mi, ss;
char numbuf[NUMBUF_LENGTH];
setlocale(LC_NUMERIC, "C"); /* Print fractional numbers with decimal point */
#define fileheader local_arg->fheader
memset(&fileheader, ' ', sizeof(REC_file_header));
copy_nstring(fileheader.version, "0", sizeof(fileheader.version));
if (args[ARGS_PATIENT].is_set) copy_nstring(fileheader.patient, args[ARGS_PATIENT].arg.s, sizeof(fileheader.patient));
if (args[ARGS_RECORDING].is_set) copy_nstring(fileheader.recording, args[ARGS_RECORDING].arg.s, sizeof(fileheader.recording));
if (args[ARGS_DATETIME].is_set) {
char * const comma=strchr(args[ARGS_DATETIME].arg.s, ',');
if (comma==NULL) {
ERREXIT(tinfo->emethods, "write_rec_open_file: Datetime format is dd.mm.yy,hh.mi.ss !\n");
}
copy_nstring(fileheader.startdate, args[ARGS_DATETIME].arg.s, sizeof(fileheader.startdate));
copy_nstring(fileheader.starttime, comma+1, sizeof(fileheader.starttime));
} else if (tinfo->comment!=NULL) {
if (!args[ARGS_RECORDING].is_set) copy_nstring(fileheader.recording, tinfo->comment, sizeof(fileheader.recording));
if (comment2time(tinfo->comment, &dd, &mm, &yy, &yyyy, &hh, &mi, &ss)) {
snprintf(numbuf, NUMBUF_LENGTH, "%02d.%02d.%02d", dd, mm, yy);
copy_nstring(fileheader.startdate, numbuf, sizeof(fileheader.startdate));
snprintf(numbuf, NUMBUF_LENGTH, "%02d.%02d.%02d", hh, mi, ss);
copy_nstring(fileheader.starttime, numbuf, sizeof(fileheader.starttime));
}
}
if (*fileheader.startdate==' ') {
/* Date/time weren't set otherwise: */
copy_nstring(fileheader.startdate, "00.00.00", sizeof(fileheader.startdate));
copy_nstring(fileheader.starttime, "00.00.00", sizeof(fileheader.starttime));
}
snprintf(numbuf, NUMBUF_LENGTH, "%ld", sm_REC_file[0].offset+channelheader_length);
copy_nstring(fileheader.bytes_in_header, numbuf, sizeof(fileheader.bytes_in_header));
copy_nstring(fileheader.data_format_version, (args[ARGS_DATA_FORMAT_VERSION].is_set ? args[ARGS_DATA_FORMAT_VERSION].arg.s : "write_rec file"), sizeof(fileheader.data_format_version));
local_arg->nr_of_records=0;
copy_nstring(fileheader.nr_of_records, "-1", sizeof(fileheader.nr_of_records));
snprintf(numbuf, NUMBUF_LENGTH, "%g", ((double)local_arg->samples_per_record)/tinfo->sfreq);
copy_nstring(fileheader.duration_s, numbuf, sizeof(fileheader.duration_s));
snprintf(numbuf, NUMBUF_LENGTH, "%d", tinfo->nr_of_channels);
copy_nstring(fileheader.nr_of_channels, numbuf, sizeof(fileheader.nr_of_channels));
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&fileheader, sm_REC_file);
#endif
write_struct((char *)&fileheader, sm_REC_file, outfptr);
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&fileheader, sm_REC_file);
#endif
#undef fileheader
if ((channelheader.label=(char (*)[16])malloc(channelheader_length))==NULL) {
ERREXIT(tinfo->emethods, "write_rec_open_file: Error allocating channelheader memory\n");
}
channelheader.transducer=(char (*)[80])(channelheader.label+tinfo->nr_of_channels);
channelheader.dimension=(char (*)[8])(channelheader.transducer+tinfo->nr_of_channels);
channelheader.physmin=(char (*)[8])(channelheader.dimension+tinfo->nr_of_channels);
channelheader.physmax=(char (*)[8])(channelheader.physmin+tinfo->nr_of_channels);
channelheader.digmin=(char (*)[8])(channelheader.physmax+tinfo->nr_of_channels);
channelheader.digmax=(char (*)[8])(channelheader.digmin+tinfo->nr_of_channels);
channelheader.prefiltering=(char (*)[80])(channelheader.digmax+tinfo->nr_of_channels);
channelheader.samples_per_record=(char (*)[8])(channelheader.prefiltering+tinfo->nr_of_channels);
channelheader.reserved=(char (*)[32])(channelheader.samples_per_record+tinfo->nr_of_channels);
memset(channelheader.label, ' ', channelheader_length);
for (channel=0; channel<tinfo->nr_of_channels; channel++) {
copy_nstring(channelheader.dimension[channel], "uV", sizeof(channelheader.dimension[channel]));
copy_nstring(channelheader.label[channel], tinfo->channelnames[channel], sizeof(channelheader.label[channel]));
snprintf(numbuf, NUMBUF_LENGTH, "%g", (double)local_arg->digmin*local_arg->resolution);
copy_nstring(channelheader.physmin[channel], numbuf, sizeof(channelheader.physmin[channel]));
snprintf(numbuf, NUMBUF_LENGTH, "%g", (double)local_arg->digmax*local_arg->resolution);
copy_nstring(channelheader.physmax[channel], numbuf, sizeof(channelheader.physmax[channel]));
snprintf(numbuf, NUMBUF_LENGTH, "%ld", local_arg->digmin);
copy_nstring(channelheader.digmin[channel], numbuf, sizeof(channelheader.digmin[channel]));
snprintf(numbuf, NUMBUF_LENGTH, "%ld", local_arg->digmax);
copy_nstring(channelheader.digmax[channel], numbuf, sizeof(channelheader.digmax[channel]));
snprintf(numbuf, NUMBUF_LENGTH, "%ld", local_arg->samples_per_record);
copy_nstring(channelheader.samples_per_record[channel], numbuf, sizeof(channelheader.samples_per_record[channel]));
}
setlocale(LC_NUMERIC, ""); /* Reset locale to environment */
if (tinfo->nr_of_channels!=(int)fwrite((void *)channelheader.label, CHANNELHEADER_SIZE_PER_CHANNEL, tinfo->nr_of_channels, local_arg->outfptr)) {
ERREXIT(tinfo->emethods, "write_rec_open_file: Error writing channel headers\n");
}
free(channelheader.label);
/*}}} */
}
}
/*{{{ read_neurofile_init(transform_info_ptr tinfo) {*/
METHODDEF void
read_neurofile_init(transform_info_ptr tinfo) {
struct read_neurofile_storage *local_arg=(struct read_neurofile_storage *)tinfo->methods->local_storage;
transform_argument *args=tinfo->methods->arguments;
int channel;
FILE *dsc;
#ifdef __GNUC__
char filename[strlen(args[ARGS_IFILE].arg.s)+5];
#else
char filename[MAX_PATHLEN];
#endif
growing_buf_init(&local_arg->triggers);
strcpy(filename, args[ARGS_IFILE].arg.s);
strcat(filename, ".dsc");
if((dsc=fopen(filename, "rb"))==NULL) {
ERREXIT1(tinfo->emethods, "read_neurofile_init: Can't open dsc file >%s<\n", MSGPARM(filename));
}
if (read_struct((char *)&local_arg->seq, sm_sequence, dsc)==0) {
ERREXIT1(tinfo->emethods, "read_neurofile_init: Can't read header in file >%s<\n", MSGPARM(filename));
}
fclose(dsc);
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->seq, sm_sequence);
#endif
local_arg->points_in_file = 256L*local_arg->seq.length;
tinfo->points_in_file=local_arg->points_in_file;
tinfo->sfreq=local_arg->sfreq=neurofile_map_sfreq(local_arg->seq.fastrate);
local_arg->nr_of_channels=local_arg->seq.nfast;
local_arg->factor=local_arg->seq.gain/1000.0;
local_arg->stringlength=0;
for (channel=0; channel<local_arg->nr_of_channels; channel++) {
local_arg->stringlength+=strlen((char *)local_arg->seq.elnam[channel])+1;
}
/*{{{ Process options*/
local_arg->fromepoch=(args[ARGS_FROMEPOCH].is_set ? args[ARGS_FROMEPOCH].arg.i : 1);
local_arg->epochs=(args[ARGS_EPOCHS].is_set ? args[ARGS_EPOCHS].arg.i : -1);
/*}}} */
/*{{{ Parse arguments that can be in seconds*/
local_arg->beforetrig=tinfo->beforetrig=gettimeslice(tinfo, args[ARGS_BEFORETRIG].arg.s);
local_arg->aftertrig=tinfo->aftertrig=gettimeslice(tinfo, args[ARGS_AFTERTRIG].arg.s);
local_arg->offset=(args[ARGS_OFFSET].is_set ? gettimeslice(tinfo, args[ARGS_OFFSET].arg.s) : 0);
/*}}} */
strcpy(filename+strlen(args[ARGS_IFILE].arg.s), ".eeg");
if((local_arg->infile=fopen(filename, "rb"))==NULL) {
ERREXIT1(tinfo->emethods, "read_neurofile_init: Can't open file >%s<\n", MSGPARM(filename));
}
if ((local_arg->last_values=(DATATYPE *)calloc(local_arg->nr_of_channels, sizeof(DATATYPE)))==NULL) {
ERREXIT(tinfo->emethods, "read_neurofile_init: Error allocating last_values memory\n");
}
local_arg->trigcodes=NULL;
if (!args[ARGS_CONTINUOUS].is_set) {
/* The actual trigger file is read when the first event is accessed! */
if (args[ARGS_TRIGLIST].is_set) {
local_arg->trigcodes=get_trigcode_list(args[ARGS_TRIGLIST].arg.s);
if (local_arg->trigcodes==NULL) {
ERREXIT(tinfo->emethods, "read_neurofile_init: Error allocating triglist memory\n");
}
}
} else {
if (local_arg->aftertrig==0) {
/* Continuous mode: If aftertrig==0, automatically read up to the end of file */
if (local_arg->points_in_file==0) {
ERREXIT(tinfo->emethods, "read_neurofile: Unable to determine the number of samples in the input file!\n");
}
local_arg->aftertrig=local_arg->points_in_file-local_arg->beforetrig;
}
}
read_neurofile_reset_triggerbuffer(tinfo);
local_arg->current_trigger=0;
local_arg->current_point=0;
tinfo->filetriggersp=&local_arg->triggers;
tinfo->methods->init_done=TRUE;
}
/*{{{ read_freiburg_init(transform_info_ptr tinfo) {*/
METHODDEF void
read_freiburg_init(transform_info_ptr tinfo) {
struct read_freiburg_storage *local_arg=(struct read_freiburg_storage *)tinfo->methods->local_storage;
transform_argument *args=tinfo->methods->arguments;
struct stat statbuf;
/*{{{ Process options*/
local_arg->fromepoch=(args[ARGS_FROMEPOCH].is_set ? args[ARGS_FROMEPOCH].arg.i : 1);
local_arg->epochs=(args[ARGS_EPOCHS].is_set ? args[ARGS_EPOCHS].arg.i : -1);
/*}}} */
local_arg->channelnames=NULL;
local_arg->uV_per_bit=NULL;
growing_buf_init(&local_arg->segment_table); /* This sets buffer_start=NULL */
local_arg->nr_of_channels=0;
if (args[ARGS_CONTINUOUS].is_set) {
/*{{{ Open a continuous (sleep, Bernd Tritschler) file*/
FILE *infile;
local_arg->in_channels= &sleep_channels[0];
if (stat(args[ARGS_IFILE].arg.s, &statbuf)!= 0 || !S_ISREG(statbuf.st_mode)) {
/* File does not exist or isn't a regular file: Try BT format */
#ifdef __GNUC__
char co_name[strlen(args[ARGS_IFILE].arg.s)+4];
char coa_name[strlen(args[ARGS_IFILE].arg.s)+5];
#else
char co_name[MAX_PATHLEN];
char coa_name[MAX_PATHLEN];
#endif
char coa_buf[MAX_COALINE];
FILE *coafile;
strcpy(co_name, args[ARGS_IFILE].arg.s); strcat(co_name, ".co");
if((infile=fopen(co_name,"rb"))==NULL) {
ERREXIT1(tinfo->emethods, "read_freiburg_init: Can't open file %s\n", MSGPARM(co_name));
}
local_arg->infile=infile;
if (args[ARGS_REPAIR_OFFSET].is_set) {
fseek(infile, args[ARGS_REPAIR_OFFSET].arg.i, SEEK_SET);
} else {
if (read_struct((char *)&local_arg->btfile, sm_BT_file, infile)==0) {
ERREXIT1(tinfo->emethods, "read_freiburg_init: Header read error in file %s\n", MSGPARM(co_name));
}
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->btfile, sm_BT_file);
# endif
}
strcpy(coa_name, args[ARGS_IFILE].arg.s); strcat(coa_name, ".coa");
if((coafile=fopen(coa_name,"rb"))==NULL) {
TRACEMS1(tinfo->emethods, 0, "read_freiburg_init: No file %s found\n", MSGPARM(coa_name));
} else {
while (!feof(coafile)) {
Bool repeat;
fgets(coa_buf, MAX_COALINE-1, coafile);
do {
repeat=FALSE;
if (strncmp(coa_buf, "Channel_Table ", 14)==0) {
int havechannels=0, stringlength=0;
long tablepos=ftell(coafile);
char *innames;
while (!feof(coafile)) {
char *eol;
fgets(coa_buf, MAX_COALINE-1, coafile);
if (!isdigit(*coa_buf)) break;
if (strncmp(coa_buf, "0 0 ", 4)==0) {
/* Empty channel descriptors: Don't generate channelnames */
} else {
for (eol=coa_buf+strlen(coa_buf)-1; eol>=coa_buf && (*eol=='\n' || *eol=='\r'); eol--) *eol='\0';
/* This includes 1 for the zero at the end: */
stringlength+=strlen(strrchr(coa_buf, ' '));
}
havechannels++;
}
if (havechannels==0) continue; /* Channel table is unuseable */
local_arg->nr_of_channels=havechannels;
innames=NULL;
if ((stringlength!=0 &&
((local_arg->channelnames=(char **)malloc(havechannels*sizeof(char *)))==NULL ||
(innames=(char *)malloc(stringlength))==NULL)) ||
(local_arg->uV_per_bit=(float *)malloc(havechannels*sizeof(float)))==NULL) {
ERREXIT(tinfo->emethods, "read_freiburg_init: Error allocating .coa memory\n");
}
fseek(coafile, tablepos, SEEK_SET);
havechannels=0;
while (!feof(coafile)) {
char *eol;
fgets(coa_buf, MAX_COALINE-1, coafile);
if (!isdigit(*coa_buf)) break;
for (eol=coa_buf+strlen(coa_buf)-1; eol>=coa_buf && (*eol=='\n' || *eol=='\r'); eol--) *eol='\0';
if (innames!=NULL) {
strcpy(innames, strrchr(coa_buf, ' ')+1);
local_arg->channelnames[havechannels]=innames;
innames+=strlen(innames)+1;
}
/* The sensitivity in .coa files is given as nV/Bit */
local_arg->uV_per_bit[havechannels]=atoi(strchr(coa_buf, ' ')+1)/1000.0;
if (local_arg->uV_per_bit[havechannels]==0.0) {
local_arg->uV_per_bit[havechannels]=0.086;
TRACEMS1(tinfo->emethods, 1, "read_freiburg_init: Sensitivity for channel %d set to 86 nV/Bit\n", MSGPARM(havechannels));
}
havechannels++;
}
repeat=TRUE;
} else if (strncmp(coa_buf, SEGMENT_TABLE_STRING, strlen(SEGMENT_TABLE_STRING))==0) {
long current_offset=0;
char *inbuf=coa_buf;
Bool havesomething=FALSE;
growing_buf_allocate(&local_arg->segment_table, 0);
while (!feof(coafile)) {
int const nextchar=fgetc(coafile);
if (nextchar=='\r' || nextchar=='\n' || nextchar==' ') {
if (havesomething) {
*inbuf = '\0';
current_offset+=atoi(coa_buf);
growing_buf_append(&local_arg->segment_table, (char *)¤t_offset, sizeof(long));
inbuf=coa_buf;
havesomething=FALSE;
}
if (nextchar=='\n') break;
} else {
*inbuf++ = nextchar;
havesomething=TRUE;
}
}
repeat=FALSE;
}
} while (repeat);
}
fclose(coafile);
if (local_arg->uV_per_bit==NULL) {
TRACEMS1(tinfo->emethods, 0, "read_freiburg_init: No channel table found in file %s\n", MSGPARM(coa_name));
}
if (local_arg->segment_table.buffer_start==NULL) {
TRACEMS1(tinfo->emethods, 0, "read_freiburg_init: No segment table found in file %s\n", MSGPARM(coa_name));
}
/* Determine the exact number of points in file: Start with the previous
* segment and add the last segment. */
fstat(fileno(infile),&statbuf);
//printf("File size is %ld\n", statbuf.st_size);
//printf("Last segment (EOF) at %ld\n", ((long *)local_arg->segment_table.buffer_start)[local_arg->segment_table.current_length/sizeof(long)-1]);
while (local_arg->segment_table.current_length>=1 && ((long *)local_arg->segment_table.buffer_start)[local_arg->segment_table.current_length/sizeof(long)-1]>=statbuf.st_size) {
//printf("%ld - Removing last segment!\n", ((long *)local_arg->segment_table.buffer_start)[local_arg->segment_table.current_length/sizeof(long)-1]);
local_arg->segment_table.current_length--;
}
/* Size without the last segment */
tinfo->points_in_file=(local_arg->segment_table.current_length/sizeof(long)-1)*SEGMENT_LENGTH;
/* Count the points in the last segment */
{
array myarray;
int length_of_last_segment=0;
myarray.element_skip=tinfo->itemsize=1;
myarray.nr_of_vectors=1;
myarray.nr_of_elements=local_arg->nr_of_channels;
if (array_allocate(&myarray)==NULL) {
ERREXIT(tinfo->emethods, "read_freiburg_init: Error allocating myarray\n");
}
fseek(infile, ((long *)local_arg->segment_table.buffer_start)[local_arg->segment_table.current_length/sizeof(long)-1], SEEK_SET);
//printf("Seeking to %ld\n", ((long *)local_arg->segment_table.buffer_start)[local_arg->segment_table.current_length/sizeof(long)-1]);
tinfo->nr_of_channels=local_arg->nr_of_channels; /* This is used by freiburg_get_segment_init! */
freiburg_get_segment_init(tinfo);
while (freiburg_get_segment(tinfo, &myarray)==0) length_of_last_segment++;
freiburg_get_segment_free(tinfo);
tinfo->points_in_file+=length_of_last_segment;
TRACEMS1(tinfo->emethods, 1, "read_freiburg_init: Last segment has %ld points\n",length_of_last_segment);
array_free(&myarray);
}
}
if (local_arg->channelnames==NULL && local_arg->btfile.text[0]=='\0') {
local_arg->in_channels= &goeppi_channels[0];
TRACEMS(tinfo->emethods, 0, "read_freiburg_init: Assuming Goeppingen style setup!\n");
}
local_arg->continuous_type=SLEEP_BT_TYPE;
TRACEMS(tinfo->emethods, 1, "read_freiburg_init: Opened file in BT format\n");
} else {
if((infile=fopen(args[ARGS_IFILE].arg.s,"rb"))==NULL) {
ERREXIT1(tinfo->emethods, "read_freiburg_init: Can't open file %s\n", MSGPARM(args[ARGS_IFILE].arg.s));
}
if (args[ARGS_REPAIR_OFFSET].is_set) {
fseek(infile, args[ARGS_REPAIR_OFFSET].arg.i, SEEK_SET);
} else {
if (read_struct((char *)&local_arg->btfile, sm_BT_file, infile)==0) {
ERREXIT1(tinfo->emethods, "read_freiburg_init: Header read error in file %s\n", MSGPARM(args[ARGS_IFILE].arg.s));
}
# ifdef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->btfile, sm_BT_file);
# endif
}
local_arg->continuous_type=SLEEP_KL_TYPE;
/* Year and day are swapped in KL format with respect to BT format... */
{short buf=local_arg->btfile.start_year; local_arg->btfile.start_year=local_arg->btfile.start_day; local_arg->btfile.start_day=buf;}
/* Well, sometimes or most of the time, in KL files the sampling interval
* was not set correctly... */
if (!args[ARGS_SFREQ].is_set && local_arg->btfile.sampling_interval_us!=9765 && local_arg->btfile.sampling_interval_us!=9766) {
TRACEMS1(tinfo->emethods, 0, "read_freiburg_init: sampling_interval_us was %d, corrected!\n", MSGPARM(local_arg->btfile.sampling_interval_us));
local_arg->btfile.sampling_interval_us=9766;
}
TRACEMS(tinfo->emethods, 1, "read_freiburg_init: Opened file in KL format\n");
}
if (args[ARGS_REPAIR_CHANNELS].is_set) local_arg->btfile.nr_of_channels=args[ARGS_REPAIR_CHANNELS].arg.i;
tinfo->nr_of_channels=local_arg->btfile.nr_of_channels;
if (tinfo->nr_of_channels<=0 || tinfo->nr_of_channels>MAX_NUMBER_OF_CHANNELS_IN_EP) {
ERREXIT1(tinfo->emethods, "read_freiburg_init: Impossible: %d channels?\n", MSGPARM(tinfo->nr_of_channels));
}
if (local_arg->nr_of_channels==0) {
local_arg->nr_of_channels=tinfo->nr_of_channels;
} else {
if (local_arg->nr_of_channels!=tinfo->nr_of_channels) {
ERREXIT2(tinfo->emethods, "read_freiburg_init: Setup has %d channels, but the file has %d!\n", MSGPARM(local_arg->nr_of_channels), MSGPARM(tinfo->nr_of_channels));
}
}
local_arg->sfreq=(args[ARGS_SFREQ].is_set ? args[ARGS_SFREQ].arg.d : 1.0e6/local_arg->btfile.sampling_interval_us);
tinfo->sfreq=local_arg->sfreq;
if (tinfo->sfreq<=0.0 || tinfo->sfreq>MAX_POSSIBLE_SFREQ) {
ERREXIT1(tinfo->emethods, "read_freiburg_init: Impossible: sfreq=%gHz?\n", MSGPARM(tinfo->sfreq));
}
/*{{{ Parse arguments that can be in seconds*/
tinfo->nr_of_points=gettimeslice(tinfo, args[ARGS_NCHANNELS].arg.s);
if (tinfo->nr_of_points<=0) {
/* Read the whole file as one epoch */
TRACEMS1(tinfo->emethods, 1, "read_freiburg_init: Reading %ld points\n",tinfo->points_in_file);
tinfo->nr_of_points=tinfo->points_in_file;
}
local_arg->offset=(args[ARGS_OFFSET].is_set ? gettimeslice(tinfo, args[ARGS_OFFSET].arg.s) : 0);
local_arg->epochlength=tinfo->nr_of_points;
/*}}} */
tinfo->beforetrig= -local_arg->offset;
tinfo->aftertrig=tinfo->nr_of_points+local_arg->offset;
/*}}} */
} else {
local_arg->in_channels= &freiburg_channels[0];
local_arg->current_trigger=0;
if (stat(args[ARGS_IFILE].arg.s, &statbuf)!=0) {
ERREXIT1(tinfo->emethods, "read_freiburg_init: Can't stat file %s\n", MSGPARM(args[ARGS_IFILE].arg.s));
}
local_arg->nr_of_channels=atoi(args[ARGS_NCHANNELS].arg.s);
/* average mode if the name does not belong to a directory */
local_arg->average_mode= !S_ISDIR(statbuf.st_mode);
tinfo->nr_of_channels=MAX_NUMBER_OF_CHANNELS_IN_EP;
}
freiburg_get_segment_init(tinfo);
local_arg->current_point=0;
tinfo->methods->init_done=TRUE;
}
int
main(int argc, char **argv) {
SETUP EEG;
ELECTLOC *Channels=(ELECTLOC *)NULL;
TEEG TagType;
int ntags;
long SizeofHeader; /* no. of bytes in header of source file */
enum NEUROSCAN_SUBTYPES SubType; /* This tells, once and for all, the file type */
int errflag=0, c;
enum {EVENTLIST_NONE, EVENTLIST_SYNAMPS, EVENTLIST_AVG_Q} event_list=EVENTLIST_NONE;
enum {EVENTPOS_POINTS, EVENTPOS_MSEC, EVENTPOS_SEC} eventpos_type=EVENTPOS_POINTS;
char *filename;
FILE *SCAN;
int NoOfChannels, channel;
int filearg;
/*{{{ Process command line*/
mainargv=argv;
while ((c=getopt(argc, argv, "eEms"))!=EOF) {
switch (c) {
case 'e':
event_list=EVENTLIST_SYNAMPS;
break;
case 'E':
event_list=EVENTLIST_AVG_Q;
break;
case 'm':
eventpos_type=EVENTPOS_MSEC;
break;
case 's':
eventpos_type=EVENTPOS_SEC;
break;
case '?':
default:
errflag++;
continue;
}
}
if (argc-optind<END_OF_ARGS || errflag>0) {
fprintf(stderr, "Usage: %s [options] synamps_filename1 synamps_filename2 ...\n"
" Options are:\n"
"\t-e: Output the event table in NeuroScan format\n"
"\t-E: Output the event table in avg_q format\n"
"\t-m: avg_q Marker positions should be output in milliseconds\n"
"\t-s: avg_q Marker positions should be output in seconds\n"
, argv[0]);
exit(1);
}
for (filearg=SYNAMPSFILE; argc-optind-filearg>=END_OF_ARGS; filearg++) {
filename=MAINARG(filearg);
SCAN=fopen(filename,"rb");
if(SCAN==NULL) {
fprintf(stderr, "%s: Can't open file %s\n", argv[0], filename);
continue;
}
if (read_struct((char *)&EEG, sm_SETUP, SCAN)==0) {
fprintf(stderr, "%s: Short file %s\n", argv[0], filename);
continue;
}
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&EEG, sm_SETUP);
#endif
if (strncmp(&EEG.rev[0],"Version",7)!=0) {
fprintf(stderr, "%s: %s is not a NeuroScan file\n", argv[0], filename);
continue;
}
/* The actual criteria to decide upon the file type (average, continuous etc)
* by the header have been moved to neurohdr.h because it's black magic... */
SubType=NEUROSCAN_SUBTYPE(&EEG);
if (event_list==EVENTLIST_NONE) {
printf("NeuroScan File %s: File type is `%s'\n\n", filename, neuroscan_subtype_names[SubType]);
print_structcontents((char *)&EEG, sm_SETUP, smd_SETUP, stdout);
}
if (EEG.ChannelOffset<=1) EEG.ChannelOffset=sizeof(short);
/*{{{ Allocate channel header*/
if ((Channels=(ELECTLOC *)malloc(EEG.nchannels*sizeof(ELECTLOC)))==NULL) {
fprintf(stderr, "%s: Error allocating Channels list\n", argv[0]);
exit(1);
}
/*}}} */
if (event_list==EVENTLIST_NONE) {
printf("\nCHANNEL HEADERS"
"\n---------------\n");
}
/* For minor_rev<4, 32 electrode structures were hardcoded - but the data is
* there for all the channels... */
NoOfChannels = (EEG.minor_rev<4 ? 32 : EEG.nchannels);
for (channel=0; channel<NoOfChannels; channel++) {
read_struct((char *)&Channels[channel], sm_ELECTLOC, SCAN);
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&Channels[channel], sm_ELECTLOC);
#endif
if (event_list==EVENTLIST_NONE) {
printf("\nChannel number %d:\n", channel+1);
print_structcontents((char *)&Channels[channel], sm_ELECTLOC, smd_ELECTLOC, stdout);
}
}
if (EEG.minor_rev<4) {
NoOfChannels = EEG.nchannels;
/* Copy the channel descriptors over from the first 32: */
for (; channel<NoOfChannels; channel++) {
memcpy(&Channels[channel], &Channels[channel%32], sizeof(ELECTLOC));
}
}
SizeofHeader = ftell(SCAN);
if (event_list==EVENTLIST_AVG_Q) {
long int const NumSamples = (EEG.EventTablePos - SizeofHeader)/NoOfChannels/sizeof(short);
printf("# NeuroScan File %s: File type is `%s'\n# Sfreq=%d\n# NumSamples=%ld\n", filename, neuroscan_subtype_names[SubType], EEG.rate, NumSamples);
}
switch(SubType) {
case NST_CONTINUOUS:
case NST_SYNAMPS:
/*{{{ Read the events header and array*/
if (event_list==EVENTLIST_NONE) {
printf("\nEVENT TABLE HEADER"
"\n------------------\n");
}
fseek(SCAN,EEG.EventTablePos,SEEK_SET);
/* Here we face two evils in one header: Coding enums as chars and
* allowing longs at odd addresses. Well... */
if (1!=read_struct((char *)&TagType, sm_TEEG, SCAN)) {
fprintf(stderr, "%s: Error reading event table header\n", argv[0]);
exit(1);
}
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&TagType, sm_TEEG);
# endif
if (event_list==EVENTLIST_NONE) {
print_structcontents((char *)&TagType, sm_TEEG, smd_TEEG, stdout);
}
if (TagType.Teeg==TEEG_EVENT_TAB1 || TagType.Teeg==TEEG_EVENT_TAB2) {
struct_member * const sm_EVENT=(TagType.Teeg==TEEG_EVENT_TAB1 ? sm_EVENT1 : sm_EVENT2);
struct_member_description * const smd_EVENT=(TagType.Teeg==TEEG_EVENT_TAB1 ? smd_EVENT1 : smd_EVENT2);
EVENT2 event;
int tag;
int TrigVal;
int KeyBoard;
int KeyPad;
int code;
enum NEUROSCAN_ACCEPTVALUES Accept;
ntags=TagType.Size/sm_EVENT[0].offset; /* sm_EVENT[0].offset is the size of the structure in file. */
if (event_list==EVENTLIST_NONE) {
printf("\nEVENT TABLE (Type %d)"
"\n--------------------\n", TagType.Teeg);
}
for (tag=0; tag<ntags; tag++) {
if (1!=read_struct((char *)&event, sm_EVENT, SCAN)) {
fprintf(stderr, "%s: Can't access event table header, CNT file is probably corrupted.\n", argv[0]);
exit(1);
}
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&event, sm_EVENT);
# endif
TrigVal=event.StimType &0xff;
KeyBoard=event.KeyBoard&0xf;
KeyPad=Event_KeyPad_value(event);
Accept=Event_Accept_value(event);
/* The `accept' values NAV_DCRESET and NAV_STARTSTOP always occur alone,
* while the NAV_REJECT and NAV_ACCEPT enclose rejected CNT blocks and
* might occur within a marker as well (at least NAV_REJECT). */
code=TrigVal-KeyPad+neuroscan_accept_translation[Accept];
if (code==0) {
code= -((KeyBoard+1)<<4);
}
switch(event_list) {
case EVENTLIST_NONE:
print_structcontents((char *)&event, sm_EVENT, smd_EVENT, stdout);
printf("\n");
break;
case EVENTLIST_SYNAMPS:
if (code!=0) printf("%4d %4d %4d 0 0.0000 %ld\n", tag+1, TrigVal, KeyBoard+KeyPad, event.Offset);
break;
case EVENTLIST_AVG_Q:
if (code!=0) {
long const pos=(event.Offset-SizeofHeader)/sizeof(short)/EEG.nchannels;
if (Accept==NAV_REJECT && code!=neuroscan_accept_translation[NAV_REJECT]) {
printf("#");
}
switch (eventpos_type) {
case EVENTPOS_POINTS:
printf("%ld %d\n", pos, code);
break;
case EVENTPOS_MSEC:
printf("%.8gms %d\n", ((float)pos)/EEG.rate*1000, code);
break;
case EVENTPOS_SEC:
printf("%.8gs %d\n", ((float)pos)/EEG.rate, code);
break;
}
}
break;
}
}
} else {
fprintf(stderr, "%s: Unknown tag type %d\n", argv[0], TagType.Teeg);
exit(1);
}
/*}}} */
break;
case NST_EPOCHS: {
NEUROSCAN_EPOCHED_SWEEP_HEAD sweephead;
int epoch, code;
if (event_list==EVENTLIST_NONE) {
printf("\nEPOCHED SWEEP HEADERS"
"\n---------------------\n");
}
for (epoch=0; epoch<EEG.compsweeps; epoch++) {
long const filepos=epoch*(sm_NEUROSCAN_EPOCHED_SWEEP_HEAD[0].offset+EEG.pnts*EEG.nchannels*sizeof(short))+SizeofHeader;
/* sm_NEUROSCAN_EPOCHED_SWEEP_HEAD[0].offset is sizeof(NEUROSCAN_EPOCHED_SWEEP_HEAD) on those other systems... */
fseek(SCAN,filepos,SEEK_SET);
read_struct((char *)&sweephead, sm_NEUROSCAN_EPOCHED_SWEEP_HEAD, SCAN);
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&sweephead, sm_NEUROSCAN_EPOCHED_SWEEP_HEAD);
# endif
code=(sweephead.type!=0 ? sweephead.type : -sweephead.response);
switch(event_list) {
case EVENTLIST_NONE:
printf("\nEpoch number %d:\n", epoch+1);
print_structcontents((char *)&sweephead, sm_NEUROSCAN_EPOCHED_SWEEP_HEAD, smd_NEUROSCAN_EPOCHED_SWEEP_HEAD, stdout);
break;
case EVENTLIST_SYNAMPS:
/* The fourth item is actually `acc'(uracy) (of response, -1=no resp), but let's use it for the accept value now */
printf("%4d %4d %4d %d 0.0000 %ld\n", epoch+1, sweephead.type, sweephead.response, sweephead.accept, filepos);
break;
case EVENTLIST_AVG_Q: {
long const pos=epoch*EEG.pnts;
if (sweephead.accept==0) {
printf("#");
}
switch (eventpos_type) {
case EVENTPOS_POINTS:
printf("%ld %d\n", pos, code);
break;
case EVENTPOS_MSEC:
printf("%gms %d\n", ((float)pos)/EEG.rate*1000, code);
break;
case EVENTPOS_SEC:
printf("%gs %d\n", ((float)pos)/EEG.rate, code);
break;
}
}
break;
}
}
}
break;
default:
break;
}
free(Channels);
fclose(SCAN);
}
return 0;
}
int
main(int argc, char **argv) {
int filearg;
int errflag=0, c;
int channel;
/*{{{ Process command line*/
mainargv=argv;
while ((c=getopt(argc, argv, ""))!=EOF) {
}
if (argc-optind<END_OF_ARGS || errflag>0) {
fprintf(stderr, "Usage: %s [options] Inomed_filename1 Inomed_filename2 ...\n"
" Options are:\n"
, argv[0]);
exit(1);
}
for (filearg=INOMEDFILEARG; argc-optind-filearg>=END_OF_ARGS; filearg++) {
char *filename=MAINARG(filearg);
FILE *INOMEDFILE=fopen(filename,"rb");
if(INOMEDFILE==NULL) {
fprintf(stderr, "%s: Can't open file %s\n", argv[0], filename);
continue;
}
if (strlen(filename)>=4 && strcmp(filename+strlen(filename)-4, ".dat")==0) {
PlotWinInfo EEG;
if (read_struct((char *)&EEG, sm_PlotWinInfo, INOMEDFILE)==0) {
fprintf(stderr, "%s: Short file %s\n", argv[0], filename);
continue;
}
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&EEG, sm_PlotWinInfo);
#endif
print_structcontents((char *)&EEG, sm_PlotWinInfo, smd_PlotWinInfo, stdout);
} else {
MULTI_CHANNEL_CONTINUOUS EEG;
if (read_struct((char *)&EEG, sm_MULTI_CHANNEL_CONTINUOUS, INOMEDFILE)==0) {
fprintf(stderr, "%s: Short file %s\n", argv[0], filename);
continue;
}
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&EEG, sm_MULTI_CHANNEL_CONTINUOUS);
#endif
print_structcontents((char *)&EEG, sm_MULTI_CHANNEL_CONTINUOUS, smd_MULTI_CHANNEL_CONTINUOUS, stdout);
for (channel=0; channel<EEG.sNumberOfChannels; channel++) {
printf("\nChannel %d\n", channel+1);
if (read_struct((char *)&EEG.strctChannel[channel], sm_CHANNEL, INOMEDFILE)==0
||read_struct((char *)&EEG.strctChannel[channel].strctHighPass, sm_DIG_FILTER, INOMEDFILE)==0
||read_struct((char *)&EEG.strctChannel[channel].strctLowPass, sm_DIG_FILTER, INOMEDFILE)==0) {
fprintf(stderr, "%s: Short file %s\n", argv[0], filename);
continue;
}
#ifndef LITTLE_ENDIAN
change_byteorder((char *)&EEG.strctChannel[channel], sm_CHANNEL);
change_byteorder((char *)&EEG.strctChannel[channel].strctHighPass, sm_DIG_FILTER);
change_byteorder((char *)&EEG.strctChannel[channel].strctLowPass, sm_DIG_FILTER);
#endif
print_structcontents((char *)&EEG.strctChannel[channel], sm_CHANNEL, smd_CHANNEL, stdout);
printf("HighPass:\n");
print_structcontents((char *)&EEG.strctChannel[channel].strctHighPass, sm_DIG_FILTER, smd_DIG_FILTER, stdout);
printf("LowPass:\n");
print_structcontents((char *)&EEG.strctChannel[channel].strctLowPass, sm_DIG_FILTER, smd_DIG_FILTER, stdout);
}
}
fclose(INOMEDFILE);
}
return 0;
}
/* This function has all the knowledge about events in the various file types */
LOCAL void
read_synamps_build_trigbuffer(transform_info_ptr tinfo) {
struct read_synamps_storage * const local_arg=(struct read_synamps_storage *)tinfo->methods->local_storage;
transform_argument *args=tinfo->methods->arguments;
if (local_arg->triggers.buffer_start==NULL) {
growing_buf_allocate(&local_arg->triggers, 0);
} else {
growing_buf_clear(&local_arg->triggers);
}
if (args[ARGS_TRIGFILE].is_set) {
FILE * const triggerfile=(strcmp(args[ARGS_TRIGFILE].arg.s,"stdin")==0 ? stdin : fopen(args[ARGS_TRIGFILE].arg.s, "r"));
TRACEMS(tinfo->emethods, 1, "read_synamps_build_trigbuffer: Reading event file\n");
if (triggerfile==NULL) {
ERREXIT1(tinfo->emethods, "read_synamps_build_trigbuffer: Can't open trigger file >%s<\n", MSGPARM(args[ARGS_TRIGFILE].arg.s));
}
while (TRUE) {
long trigpoint;
char *description;
int const code=read_trigger_from_trigfile(triggerfile, tinfo->sfreq, &trigpoint, &description);
if (code==0) break;
push_trigger(&local_arg->triggers, trigpoint, code, description);
free_pointer((void **)&description);
}
if (triggerfile!=stdin) fclose(triggerfile);
} else {
switch(local_arg->SubType) {
case NST_CONTINUOUS:
case NST_SYNAMPS: {
/*{{{ Read the events header and array*/
/* We handle errors through setting errormessage, because we want to continue
* with a warning if we are in continuous mode or read from an event file */
TEEG TagType;
EVENT2 event;
TRACEMS(tinfo->emethods, 1, "read_synamps_build_trigbuffer: Reading event table\n");
fseek(local_arg->SCAN,local_arg->EEG.EventTablePos,SEEK_SET);
/* Here we face two evils in one header: Coding enums as chars and
* allowing longs at odd addresses. Well... */
if (read_struct((char *)&TagType, sm_TEEG, local_arg->SCAN)==1) {
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&TagType, sm_TEEG);
# endif
if (TagType.Teeg==TEEG_EVENT_TAB1 || TagType.Teeg==TEEG_EVENT_TAB2) {
/*{{{ Read the event table*/
struct_member * const sm_EVENT=(TagType.Teeg==TEEG_EVENT_TAB1 ? sm_EVENT1 : sm_EVENT2);
int ntags, tag;
ntags=TagType.Size/sm_EVENT[0].offset; /* sm_EVENT[0].offset is the size of the structure in file. */
for (tag=0; tag<ntags; tag++) {
long trigger_position=0;
int TrigVal=0, KeyPad=0, KeyBoard=0;
enum NEUROSCAN_ACCEPTVALUES Accept=(enum NEUROSCAN_ACCEPTVALUES)0;
if (read_struct((char *)&event, sm_EVENT, local_arg->SCAN)==0) {
ERREXIT(tinfo->emethods, "read_synamps_build_trigbuffer: Can't read an event table entry.\n");
break;
}
# ifndef LITTLE_ENDIAN
change_byteorder((char *)&event, sm_EVENT);
# endif
trigger_position=offset2point(tinfo,event.Offset);
TrigVal=event.StimType &0xff;
KeyBoard=event.KeyBoard&0xf;
KeyPad=Event_KeyPad_value(event);
Accept=Event_Accept_value(event);
if (!args[ARGS_NOREJECTED].is_set || Accept!=NAV_REJECT) {
read_synamps_push_keys(tinfo, trigger_position, TrigVal, KeyPad, KeyBoard, Accept);
}
}
/*}}} */
} else {
ERREXIT1(tinfo->emethods, "read_synamps_build_trigbuffer: Unknown tag type %d.\n", MSGPARM(TagType.Teeg));
}
} else {
ERREXIT(tinfo->emethods, "read_synamps_build_trigbuffer: Can't read the event table header.\n");
}
/*}}} */
}
break;
case NST_CONT0: {
/*{{{ CONT0: Two trailing marker channels*/
long current_triggerpoint=0;
unsigned short *pdata;
TRACEMS(tinfo->emethods, 1, "read_synamps_build_trigbuffer: Analyzing CONT0 marker channels\n");
while (current_triggerpoint<local_arg->EEG.NumSamples) {
int TrigVal=0, KeyPad=0, KeyBoard=0;
enum NEUROSCAN_ACCEPTVALUES Accept=(enum NEUROSCAN_ACCEPTVALUES)0;
read_synamps_seek_point(tinfo, current_triggerpoint);
pdata=(unsigned short *)local_arg->buffer+current_triggerpoint-local_arg->first_point_in_buffer+local_arg->nchannels;
TrigVal =pdata[0]&0xff;
KeyBoard=pdata[1]&0xf; if (KeyBoard>13) KeyBoard=0;
if (TrigVal!=0 || KeyBoard!=0) {
read_synamps_push_keys(tinfo, current_triggerpoint, TrigVal, KeyPad, KeyBoard, Accept);
current_triggerpoint++;
while (current_triggerpoint<local_arg->EEG.NumSamples) {
int This_TrigVal, This_KeyBoard;
read_synamps_seek_point(tinfo, current_triggerpoint);
pdata=(unsigned short *)local_arg->buffer+current_triggerpoint-local_arg->first_point_in_buffer+local_arg->nchannels;
This_TrigVal =pdata[0]&0xff;
This_KeyBoard=pdata[1]&0xf; if (This_KeyBoard>13) This_KeyBoard=0;
if (This_TrigVal!=TrigVal || This_KeyBoard!=KeyBoard) break;
current_triggerpoint++;
}
}
}
/*}}} */
}
break;
case NST_DCMES: {
/*{{{ DC-MES: Single, leading marker channel*/
long current_triggerpoint=0;
unsigned short *pdata;
TRACEMS(tinfo->emethods, 1, "read_synamps_build_trigbuffer: Analyzing DCMES marker channel\n");
while (current_triggerpoint<local_arg->EEG.NumSamples) {
int TrigVal=0, KeyPad=0, KeyBoard=0;
enum NEUROSCAN_ACCEPTVALUES Accept=(enum NEUROSCAN_ACCEPTVALUES)0;
read_synamps_seek_point(tinfo, current_triggerpoint);
pdata=(unsigned short *)local_arg->buffer+current_triggerpoint-local_arg->first_point_in_buffer;
TrigVal= *pdata&0xff;
KeyBoard=(*pdata>>8)&0xf; if (KeyBoard>13) KeyBoard=0;
if (TrigVal!=0 || KeyBoard!=0) {
read_synamps_push_keys(tinfo, current_triggerpoint, TrigVal, KeyPad, KeyBoard, Accept);
current_triggerpoint++;
while (current_triggerpoint<local_arg->EEG.NumSamples) {
int This_TrigVal, This_KeyBoard;
read_synamps_seek_point(tinfo, current_triggerpoint);
pdata=(unsigned short *)local_arg->buffer+current_triggerpoint-local_arg->first_point_in_buffer;
This_TrigVal= *pdata&0xff;
This_KeyBoard=(*pdata>>8)&0xf; if (This_KeyBoard>13) This_KeyBoard=0;
if (This_TrigVal!=TrigVal || This_KeyBoard!=KeyBoard) break;
current_triggerpoint++;
}
}
}
/*}}} */
}
break;
default:
break;
}
}
/*{{{ write_vitaport_exit(transform_info_ptr tinfo) {*/
METHODDEF void
write_vitaport_exit(transform_info_ptr tinfo) {
struct write_vitaport_storage *local_arg=(struct write_vitaport_storage *)tinfo->methods->local_storage;
int channel, NoOfChannels=local_arg->fileheader.knum;
long point;
long const channellen=local_arg->total_points*sizeof(uint16_t);
long const hdlen=local_arg->fileheader.hdlen;
uint16_t checksum=0;
local_arg->fileheaderII.dlen=hdlen+NoOfChannels*channellen;
/*{{{ Write the file headers*/
# ifdef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->fileheader, sm_vitaport_fileheader);
change_byteorder((char *)&local_arg->fileheaderII, sm_vitaportII_fileheader);
change_byteorder((char *)&local_arg->fileext, sm_vitaportII_fileext);
# endif
write_struct((char *)&local_arg->fileheader, sm_vitaport_fileheader, local_arg->outfile);
write_struct((char *)&local_arg->fileheaderII, sm_vitaportII_fileheader, local_arg->outfile);
write_struct((char *)&local_arg->fileext, sm_vitaportII_fileext, local_arg->outfile);
/*}}} */
for (channel=0; channel<NoOfChannels; channel++) {
/*{{{ Write a channel header*/
/* This is the factor as we'd like to have it... */
float factor=((float)(local_arg->channelmax[channel]> -local_arg->channelmin[channel] ? local_arg->channelmax[channel] : -local_arg->channelmin[channel]))/SHRT_MAX;
if (strncmp(local_arg->channelheaders[channel].kname, VP_MARKERCHANNEL_NAME, 6)==0) {
strcpy(local_arg->channelheaders[channel].kunit, "mrk");
local_arg->channelheaders[channel].datype=VP_DATYPE_MARKER;
/* Since the marker channel is read without the conversion factors,
* set the conversion to 1.0 for this channel */
local_arg->channelheaders[channel].mulfac=local_arg->channelheaders[channel].divfac=1;
local_arg->channelheaders[channel].offset=0;
} else {
float const logdiff=log(factor)-TARGET_LOG_SHORTVAL;
local_arg->channelheaders[channel].offset=0;
if (logdiff<0) {
/*{{{ Factor is small: Better to fix divfac and calculate mulfac after that*/
double const divfac=exp(-logdiff);
if (divfac>SHRT_MAX) {
local_arg->channelheaders[channel].divfac=SHRT_MAX;
} else {
local_arg->channelheaders[channel].divfac=(unsigned short)divfac;
}
/* The +1 takes care that we never get below the `ideal' factor computed above. */
local_arg->channelheaders[channel].mulfac=(unsigned short)(factor*local_arg->channelheaders[channel].divfac+1);
if (local_arg->channelheaders[channel].mulfac==0) {
local_arg->channelheaders[channel].mulfac=1;
local_arg->channelheaders[channel].divfac=(unsigned short)(1.0/factor-1);
}
/*}}} */
} else {
/*{{{ Factor is large: Better to fix mulfac and calculate divfac after that*/
double const mulfac=exp(logdiff);
if (mulfac>SHRT_MAX) {
local_arg->channelheaders[channel].mulfac=SHRT_MAX;
} else {
local_arg->channelheaders[channel].mulfac=(unsigned short)mulfac;
}
/* The -1 takes care that we never get below the `ideal' factor computed above. */
local_arg->channelheaders[channel].divfac=(unsigned short)(local_arg->channelheaders[channel].mulfac/factor-1);
if (local_arg->channelheaders[channel].divfac==0) {
local_arg->channelheaders[channel].mulfac=(unsigned short)(factor+1);
local_arg->channelheaders[channel].divfac=1;
}
/*}}} */
}
}
/* Now see which factor we actually got constructed */
factor=((float)local_arg->channelheaders[channel].mulfac)/local_arg->channelheaders[channel].divfac;
local_arg->channelheadersII[channel].doffs=channel*channellen;
local_arg->channelheadersII[channel].dlen=channellen;
# ifdef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->channelheaders[channel], sm_vitaport_channelheader);
change_byteorder((char *)&local_arg->channelheadersII[channel], sm_vitaportIIrchannelheader);
# endif
write_struct((char *)&local_arg->channelheaders[channel], sm_vitaport_channelheader, local_arg->outfile);
write_struct((char *)&local_arg->channelheadersII[channel], sm_vitaportIIrchannelheader, local_arg->outfile);
# ifdef LITTLE_ENDIAN
change_byteorder((char *)&local_arg->channelheaders[channel], sm_vitaport_channelheader);
change_byteorder((char *)&local_arg->channelheadersII[channel], sm_vitaportIIrchannelheader);
# endif
/*}}} */
}
fwrite(&checksum, sizeof(checksum), 1, local_arg->outfile);
TRACEMS(tinfo->emethods, 1, "write_vitaport_exit: Copying channels to output file...\n");
/* We close and re-open the channel file because buffering is much more
* efficient at least with DJGPP if the file is either only read or written */
fclose(local_arg->channelfile);
if ((local_arg->channelfile=fopen(local_arg->channelfilename, "rb"))==NULL) {
ERREXIT1(tinfo->emethods, "write_vitaport_exit: Can't open temp file %s\n", MSGPARM(local_arg->channelfilename));
}
for (channel=0; channel<NoOfChannels; channel++) {
/*{{{ Copy a channel to the target file */
float const factor=((float)local_arg->channelheaders[channel].mulfac)/local_arg->channelheaders[channel].divfac;
unsigned short const offset=local_arg->channelheaders[channel].offset;
for (point=0; point<local_arg->total_points; point++) {
DATATYPE dat;
int16_t s;
fseek(local_arg->channelfile, (point*NoOfChannels+channel)*sizeof(DATATYPE), SEEK_SET);
if (fread(&dat, sizeof(DATATYPE), 1, local_arg->channelfile)!=1) {
ERREXIT(tinfo->emethods, "write_vitaport_exit: Error reading temp file.\n");
}
s= (int16_t)rint(dat/factor)-offset;
# ifdef LITTLE_ENDIAN
Intel_int16((uint16_t *)&s);
# endif
if (fwrite(&s, sizeof(s), 1, local_arg->outfile)!=1) {
ERREXIT(tinfo->emethods, "write_vitaport_exit: Write error.\n");
}
}
/*}}} */
}
fclose(local_arg->channelfile);
unlink(local_arg->channelfilename);
if (local_arg->triggers.current_length!=0) {
long tagno, n_events;
uint32_t length, trigpoint;
int const nevents=local_arg->triggers.current_length/sizeof(struct trigger);
struct vitaport_idiotic_multiplemarkertablenames *markertable_entry;
/* Try to keep a security space of at least 20 free events */
for (markertable_entry=markertable_names; markertable_entry->markertable_name!=NULL && markertable_entry->idiotically_fixed_length<nevents+20; markertable_entry++);
if (markertable_entry->markertable_name==NULL) {
if ((markertable_entry-1)->idiotically_fixed_length<=nevents) {
/* Drop the requirement for at least 20 free events */
markertable_entry--;
} else {
/* No use... */
ERREXIT1(tinfo->emethods, "write_vitaport_exit: %d events wouldn't fit into the fixed-length VITAGRAPH marker tables!\nBlame the Vitaport people!\n", MSGPARM(nevents));
}
}
n_events=markertable_entry->idiotically_fixed_length;
fwrite(markertable_entry->markertable_name, 1, VP_TABLEVAR_LENGTH, local_arg->outfile);
length=n_events*sizeof(length);
#ifdef LITTLE_ENDIAN
Intel_int32((uint32_t *)&length);
#endif
fwrite(&length, sizeof(length), 1, local_arg->outfile);
for (tagno=0; tagno<n_events; tagno++) {
if (tagno<nevents) {
struct trigger * const intrig=((struct trigger *)local_arg->triggers.buffer_start)+tagno;
/* Trigger positions are given in ms units */
trigpoint=(long)rint(intrig->position*1000.0/local_arg->sfreq);
/* Make trigpoint uneven if code%2==1 */
trigpoint=trigpoint-trigpoint%2+(intrig->code-1)%2;
} else {
trigpoint= -1;
}
#ifdef LITTLE_ENDIAN
Intel_int32((uint32_t *)&trigpoint);
#endif
fwrite(&trigpoint, sizeof(trigpoint), 1, local_arg->outfile);
}
for (; tagno<n_events; tagno++) {
trigpoint= -1;
#ifdef LITTLE_ENDIAN
Intel_int32((uint32_t *)&trigpoint);
#endif
fwrite(&trigpoint, sizeof(trigpoint), 1, local_arg->outfile);
}
}
fclose(local_arg->outfile);
/*{{{ Free memory*/
free_pointer((void **)&local_arg->channelfilename);
free_pointer((void **)&local_arg->channelmax);
free_pointer((void **)&local_arg->channelmin);
free_pointer((void **)&local_arg->channelheaders);
free_pointer((void **)&local_arg->channelheadersII);
if (local_arg->triggers.buffer_start!=NULL) {
clear_triggers(&local_arg->triggers);
growing_buf_free(&local_arg->triggers);
}
/*}}} */
tinfo->methods->init_done=FALSE;
}
