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;
}
/*{{{ 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;
}
/* 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;
}
}
