int record_mode_display(void)
{
ALLF_DATA evt;
UINT16 key;
int eye_used = -1; /* which eye to show gaze for */
float x, y; /* gaze position */
float ox=-1, oy=-1; /* old gaze position (to determine change) */
/* create font for position display */
get_new_font( "Arial", SCRWIDTH/50, 0);
while(getkey()); /* dump any pending local keys */
/*enable link data reception without changing tracker mode */
eyelink_reset_data(1);
initialize_cursor(window, SCRWIDTH/50);
eyelink_data_switch(RECORD_LINK_SAMPLES | RECORD_LINK_EVENTS);
while(1) /* loop while in record mode */
{
if(eyelink_tracker_mode() != EL_RECORD_MODE) break;
key = getkey(); /* Local keys/abort test */
if(key==TERMINATE_KEY) /* test ALT-F4 or end of execution */
break;
else if(key) /* OTHER: echo to tracker for control */
eyelink_send_keybutton(key,0,KB_PRESS);
/* CODE FOR PLOTTING GAZE CURSOR */
if(eyelink_newest_float_sample(NULL)>0) /* new sample? */
{
eyelink_newest_float_sample(&evt); /* get the sample data */
if(eye_used == -1) /* set which eye to track by first sample */
{
eye_used = eyelink_eye_available();
if(eye_used == BINOCULAR) /* use left eye if both tracked */
eye_used = LEFT_EYE;
}
else
{
x = evt.fs.gx[eye_used]; /* get gaze position from sample */
y = evt.fs.gy[eye_used];
if(x!=MISSING_DATA && y!=MISSING_DATA &&
evt.fs.pa[eye_used]>0) /* plot if not in blink */
{ /* plot in local coords */
draw_gaze_cursor(track2local_x(x),
track2local_y(y));
/* report gaze position (tracker coords) */
{
SDL_Rect r = {(INT16)(SCRWIDTH*0.87), 0, (INT16)(window->w -SCRWIDTH*0.87), 50};
SDL_FillRect(window,&r,SDL_MapRGB(window->format,0, 0, 0));
graphic_printf(window, target_foreground_color, NONE, (int)(SCRWIDTH*0.87), 0, " %4.0f ", x);
graphic_printf(window, target_foreground_color, NONE, (int)(SCRWIDTH*0.93), 0, " %4.0f ", y);
}
ox = x;
oy = y;
}
else
{
erase_gaze_cursor(); /* hide cursor during blink */
}
/* print tracker timestamp of sample */
{
SDL_Rect r = {(INT16)(SCRWIDTH*0.75), 0, (INT16)(SCRWIDTH*0.87 -SCRWIDTH*0.75), 50};
SDL_FillRect(window,&r,SDL_MapRGB(window->format,0, 0, 0));
graphic_printf(window,target_foreground_color, NONE, (int)(SCRWIDTH*0.75), 0, " % 8d ", evt.fs.time);
}
}
}
}
erase_gaze_cursor(); /* erase gaze cursor if visible */
return 0;
}
bool Eyelink::initialize(){
boost::mutex::scoped_lock lock(EyelinkDriverLock);
if (Eyelink_Initialized) {
merror(M_IODEVICE_MESSAGE_DOMAIN,"Eyelink was previously initialized! Trying again, but this is dangerous!!");
}
Eyelink_Initialized = false;
// Initializes the link
//mprintf(M_IODEVICE_MESSAGE_DOMAIN, "Trying to find Eyelink System at %s",tracker_ip);
if (set_eyelink_address( &tracker_ip[0] ) )
merror(M_IODEVICE_MESSAGE_DOMAIN,"Failed to set Tracker to address %s", tracker_ip.c_str());
if(open_eyelink_connection(0))
merror(M_IODEVICE_MESSAGE_DOMAIN,"Failed to connect to Tracker at %s", tracker_ip.c_str());
else {
ELINKNODE node;
// generate data file name
time_t now = time(NULL);
struct tm* t = gmtime(&now);
sprintf(data_file_name, "%02d%06d.edf",(t->tm_year-100),t->tm_yday*1440 + t->tm_hour*60 + t->tm_min);
//YYMMMMMM : YY=Years since 2k, MMMMMM=Minutes in current year
if ( open_data_file( data_file_name ) ) {
mwarning(M_IODEVICE_MESSAGE_DOMAIN,"Eyelink datafile setting failed (%s)",data_file_name);
}
else {
mprintf(M_IODEVICE_MESSAGE_DOMAIN,"Eyelink logs to local file %s",data_file_name);
}
// Tell the tracker what data to include in samples
if (OK_RESULT != eyecmd_printf("link_sample_data = LEFT,RIGHT,GAZE,HREF,PUPIL,AREA")) {
mwarning(M_IODEVICE_MESSAGE_DOMAIN,
"Eyelink did not respond to link_sample_data command; sample data may be incomplete");
}
// tell the tracker who we are
eyelink_set_name((char*)("MWorks_over_Socket"));
// verify the name
if( eyelink_get_node(0,&node) != OK_RESULT )
merror(M_IODEVICE_MESSAGE_DOMAIN,"Error, EyeLink doesn't respond");
else eyemsg_printf((char*)("%s connected"), node.name);
// Enable link data reception
eyelink_reset_data(1);
}
// Eyelink should now be in "TCP-Link Open" mode
if(eyelink_is_connected()) {
tracker_version = eyelink_get_tracker_version(version_info);
mprintf(M_IODEVICE_MESSAGE_DOMAIN, "Eyelink %d System Version %s connected via Socket",tracker_version,version_info);
Eyelink_Initialized = true;
stopped = true;
}
else {
merror(M_IODEVICE_MESSAGE_DOMAIN,"Error, Eyelink Connection could not be established");
}
return Eyelink_Initialized;
}
