app_main()
{
int i, j;
char our_file_name[260] = "TEST";
if(open_eyelink_connection(0)) return -1; // abort if we can't open link
set_offline_mode();
flush_getkey_queue(); // initialize getkey() system
is_eyelink2 = (2 == eyelink_get_tracker_version(NULL) );
get_display_information(&dispinfo); // get window size, characteristics
// NOTE: Camera display does not support 16-color modes
// NOTE: Picture display examples don't work well with 256-color modes
// However, all other sample programs should work well.
if(dispinfo.palsize==16) // 16-color modes not functional
{
alert_printf("This program cannot use 16-color displays");
goto shutdown;
}
if(dispinfo.refresh < 40) // wait_for_refresh doesn't work!
{
alert_printf("No refresh synchroniztion available!");
}
if(dispinfo.palsize) // 256-color modes: palettes not supported by this example
{
alert_printf("This program is not optimized for 256-color displays");
}
//SEAN -display window
if(make_full_screen_window(application_instance)) goto shutdown; // create the window
if(init_expt_graphics(full_screen_window, NULL)) goto shutdown; // register window with EXPTSPPT
i = SCRWIDTH/60; // select best size for calibration target
j = SCRWIDTH/300; // and focal spot in target
if(j < 2) j = 2;
set_target_size(i, j); // tell DLL the size of target features
target_foreground_color = RGB(0,0,0); // color of calibration target
target_background_color = RGB(128,128,128); // background for calibration and drift correction
set_calibration_colors(target_foreground_color, target_background_color); // tell EXPTSPPT the colors
set_cal_sounds("", "", "");
set_dcorr_sounds("", "off", "off");
// draw a title screen
// SEAN
clear_full_screen_window(target_background_color); // clear screen
get_new_font("Times Roman", SCRHEIGHT/32, 1); // select a font
// Draw text
graphic_printf(target_foreground_color, target_background_color, 1, SCRWIDTH/2, 1*SCRHEIGHT/30,
"EyeLink Demonstration Experiment: Sample Code");
graphic_printf(target_foreground_color, target_background_color, 1, SCRWIDTH/2, 2*SCRHEIGHT/30,
"Included with the Experiment Programming Kit for Windows");
graphic_printf(target_foreground_color, target_background_color, 1, SCRWIDTH/2, 3*SCRHEIGHT/30,
"All code is Copyright (c) 1997-2002 SR Research Ltd.");
graphic_printf(target_foreground_color, target_background_color, 0, SCRWIDTH/5, 4*SCRHEIGHT/30,
"Source code may be used as template for your experiments.");
//SEAN - file i/o
i = edit_dialog(full_screen_window, "Create EDF File", // Get the EDF file name
"Enter Tracker EDF file name:", our_file_name, 8);
if(i==-1) goto shutdown; // ALT-F4: terminate
if(i==1) our_file_name[0] = 0; // Cancelled: No file name
if(our_file_name[0]) // If file name set, open it
{
if(!strstr(our_file_name, ".")) strcat(our_file_name, ".EDF"); // add extension
i = open_data_file(our_file_name); // open file
if(i!=0) // check for error
{
alert_printf("Cannot create EDF file '%s'", our_file_name);
goto shutdown;
} // add title to preamble
eyecmd_printf("add_file_preamble_text 'RECORDED BY %s' ", program_name);
}
// Now configure tracker for display resolution
eyecmd_printf("screen_pixel_coords = %ld %ld %ld %ld", // Set display resolution
dispinfo.left, dispinfo.top, dispinfo.right, dispinfo.bottom);
eyecmd_printf("calibration_type = HV9"); // Setup calibration type
eyemsg_printf("DISPLAY_COORDS %ld %ld %ld %ld", // Add resolution to EDF file
dispinfo.left, dispinfo.top, dispinfo.right, dispinfo.bottom);
if(dispinfo.refresh>40)
eyemsg_printf("FRAMERATE %1.2f Hz.", dispinfo.refresh);
// SET UP TRACKER CONFIGURATION
// set parser saccade thresholds (conservative settings)
if(is_eyelink2)
{
eyecmd_printf("select_parser_configuration 0"); // 0 = standard sensitivity
}
else
{
eyecmd_printf("saccade_velocity_threshold = 35");
eyecmd_printf("saccade_acceleration_threshold = 9500");
}
// set EDF file contents
eyecmd_printf("file_event_filter = LEFT,RIGHT,FIXATION,SACCADE,BLINK,MESSAGE,BUTTON");
eyecmd_printf("file_sample_data = LEFT,RIGHT,GAZE,AREA,GAZERES,STATUS");
// set link data (used for gaze cursor)
eyecmd_printf("link_event_filter = LEFT,RIGHT,FIXATION,SACCADE,BLINK,BUTTON");
eyecmd_printf("link_sample_data = LEFT,RIGHT,GAZE,GAZERES,AREA,STATUS");
// Program button #5 for use in drift correction
eyecmd_printf("button_function 5 'accept_target_fixation'");
if(!eyelink_is_connected() || break_pressed()) goto end_expt; // make sure we're still alive
// RUN THE EXPERIMENTAL TRIALS (code depends on type of experiment)
// Calling run_trials() performs a calibration followed by trials
// This is equivalent to one block of an experiment
// It will return ABORT_EXPT if the program should exit
i = run_trials();
end_expt: // END: close, transfer EDF file
set_offline_mode(); // set offline mode so we can transfer file
pump_delay(500); // delay so tracker is ready
eyecmd_printf("close_data_file"); // close data file
if(break_pressed()) goto shutdown; // don't get file if we aborted experiment
if(our_file_name[0]) // make sure we created a file
receive_data_file(our_file_name, "", 0); // transfer the file, ask for a local name
shutdown: // CLEANUP
close_expt_graphics(); // tell EXPTSPPT to release window
close_eyelink_connection(); // disconnect from tracker
close_full_screen_window();
return 0;
}
int app_main(char * trackerip, DISPLAYINFO * disp)
{
UINT16 i, j;
char our_file_name[260] = "TEST";
char verstr[50];
int eyelink_ver = 0;
int tracker_software_ver = 0;
if(trackerip)
set_eyelink_address(trackerip);
if(open_eyelink_connection(0)) return -1; /* abort if we can't open link */
set_offline_mode();
flush_getkey_queue(); /* initialize getkey() system */
eyelink_ver = eyelink_get_tracker_version(verstr);
if (eyelink_ver == 3)
tracker_software_ver = get_tracker_sw_version(verstr);
if(init_expt_graphics(NULL, disp))
goto shutdown; /* register window with EXPTSPPT */
window = SDL_GetVideoSurface();
get_display_information(&dispinfo); /* get window size, characteristics */
/*
NOTE: Camera display does not support 16-color modes
NOTE: Picture display examples don't work well with 256-color modes
However, all other sample programs should work well.
*/
if(dispinfo.palsize) /* 256-color modes: palettes not supported by this example */
alert_printf("This program is not optimized for 256-color displays");
i = SCRWIDTH/60; /* select best size for calibration target */
j = SCRWIDTH/300; /* and focal spot in target */
if(j < 2) j = 2;
set_target_size(i, j); /* tell DLL the size of target features */
/* color of calibration target */
SETCOLOR(target_foreground_color, 0,0,0);
/* background for calibration and drift correction */
SETCOLOR(target_background_color, 128,128,128);
/* tell EXPTSPPT the colors */
set_calibration_colors(&target_foreground_color, &target_background_color);
set_cal_sounds("", "", "");
set_dcorr_sounds("", "off", "off");
/* draw a title screen */
clear_full_screen_window(target_background_color); /* clear screen */
get_new_font("Times Roman", SCRHEIGHT/32, 1); /* select a font */
/* Draw text */
graphic_printf(window, target_foreground_color, CENTER, SCRWIDTH/2, 1*SCRHEIGHT/30,
"EyeLink Demonstration Experiment: Communicate with Listener");
graphic_printf(window, target_foreground_color, CENTER, SCRWIDTH/2, 2*SCRHEIGHT/30,
"Included with the Experiment Programming Kit for Windows");
graphic_printf(window, target_foreground_color, CENTER, SCRWIDTH/2, 3*SCRHEIGHT/30,
"All code is Copyright (c) 1997-2002 SR Research Ltd.");
graphic_printf(window, target_foreground_color, CENTER, SCRWIDTH/5, 4*SCRHEIGHT/30,
"Source code may be used as template for your experiments.");
SDL_Flip(window);
eyelink_set_name("comm_simple"); /* NEW: set our network name */
if(check_for_listener()) /* check for COMM_LISTENER application */
{
alert_printf("Could not communicate with COMM_LISTENER application.");
goto shutdown;
}
if(i==1) our_file_name[0] = 0; /* Cancelled: No file name */
if(our_file_name[0]) /* If file name set, open it */
{
if(!strstr(our_file_name, ".")) strcat(our_file_name, ".EDF"); /* add extension */
i = open_data_file(our_file_name); /* open file */
if(i!=0) /* check for error */
{
alert_printf("Cannot create EDF file '%s'", our_file_name);
goto shutdown;
}
/* add title to preamble */
eyecmd_printf("add_file_preamble_text 'RECORDED BY %s' ", program_name);
}
/*
SET UP TRACKER CONFIGURATION
NOTE: set contents before sending messages!
set EDF file contents
*/
if(eyelink_ver>=2)
{
eyecmd_printf("select_parser_configuration 0"); // 0 = standard sensitivity
if(eyelink_ver == 2) //turn off scenelink camera stuff
{
eyecmd_printf("scene_camera_gazemap = NO");
}
}
else
{
eyecmd_printf("saccade_velocity_threshold = 35");
eyecmd_printf("saccade_acceleration_threshold = 9500");
}
// NOTE: set contents before sending messages!
// set EDF file contents
eyecmd_printf("file_event_filter = LEFT,RIGHT,FIXATION,SACCADE,BLINK,MESSAGE,BUTTON");
eyecmd_printf("file_sample_data = LEFT,RIGHT,GAZE,AREA,GAZERES,STATUS%s",(tracker_software_ver>=4)?",HTARGET":"");
// set link data (used for gaze cursor)
eyecmd_printf("link_event_filter = LEFT,RIGHT,FIXATION,SACCADE,BLINK,BUTTON");
eyecmd_printf("link_sample_data = LEFT,RIGHT,GAZE,GAZERES,AREA,STATUS%s",(tracker_software_ver>=4)?",HTARGET":"");
/* NEW: Allow EyeLink I (v2.1+) to echo messages back to listener */
eyecmd_printf("link_nonrecord_events = BUTTONS, MESSAGES");
/* Program button #5 for use in drift correction */
eyecmd_printf("button_function 5 'accept_target_fixation'");
/* Now configure tracker for display resolution */
eyecmd_printf("screen_pixel_coords = %ld %ld %ld %ld", /* Set display resolution */
dispinfo.left, dispinfo.top, dispinfo.right, dispinfo.bottom);
eyecmd_printf("calibration_type = HV9"); /* Setup calibration type */
eyemsg_printf("DISPLAY_COORDS %ld %ld %ld %ld",/* Add resolution to EDF file */
dispinfo.left, dispinfo.top, dispinfo.right, dispinfo.bottom);
if(dispinfo.refresh>40)
eyemsg_printf("FRAMERATE %1.2f Hz.", dispinfo.refresh);
/* make sure we're still alive */
if(!eyelink_is_connected() || break_pressed()) goto end_expt;
/*
RUN THE EXPERIMENTAL TRIALS (code depends on type of experiment)
Calling run_trials() performs a calibration followed by trials
This is equivalent to one block of an experiment
It will return ABORT_EXPT if the program should exit
*/
i = run_trials();
end_expt: /* END: close, transfer EDF file */
set_offline_mode(); /* set offline mode so we can transfer file */
pump_delay(500); /* delay so tracker is ready */
eyecmd_printf("close_data_file"); /* close data file */
if(break_pressed()) goto shutdown;/* don't get file if we aborted experiment */
if(our_file_name[0]) /* make sure we created a file */
receive_data_file(our_file_name, "", 0); /* transfer the file, ask for a local name */
shutdown: /* CLEANUP */
close_expt_graphics(); /* tell EXPTSPPT to release window */
close_eyelink_connection(); /* disconnect from tracker */
return 0;
}
// ######################################################################
void EyeTrackerEyeLink::start1()
{
#ifndef HAVE_EYELINK
LFATAL("Proprietary EyeLink developer API not installed");
#else
// get the link to the eye-tracker going:
if (open_eyelink_connection(0))
LFATAL("Cannot open link to EyeLink tracker - make sure your "
"hostname resolves to 100.1.1.2 (check /etc/hosts)");
// Basic initializations:
set_offline_mode();
flush_getkey_queue();/* initialize getkey() system */
// Open EyeLink version of SDL
openSDL();
// set the display characteristics:
DISPLAYINFO di; // defined in eyelink/core_expt.h
di.width = itsDims.getVal().w(); di.height = itsDims.getVal().h();
di.left = 0; di.top = 0; di.right = di.width-1; di.bottom = di.height-1;
di.bits = 24; di.palsize = 0; di.pages = 0; di.refresh = 60.0F;
di.winnt = 0;
set_calibration_colors(&target_foreground_color, &target_background_color);
// open EDF file if set:
if (itsEDFfname.getVal().empty() == false)
{
if (open_data_file((char *)(itsEDFfname.getVal().c_str())) != 0)
LFATAL("Cannot open EDF file '%s'", itsEDFfname.getVal().c_str());
eyecmd_printf(const_cast<char*>("add_file_preamble_text 'RECORDED BY iLab code' "));
}
// Add resolution to EDF file:
eyemsg_printf(const_cast<char*>("DISPLAY_COORDS %ld %ld %ld %ld"),
di.left, di.top, di.right, di.bottom);
/* SET UP TRACKER CONFIGURATION */
/* set parser saccade thresholds (conservative settings) */
/* 0 = standard sensitivity */
eyecmd_printf(const_cast<char*>("select_parser_configuration 0"));
// set EDF file contents:
eyecmd_printf(const_cast<char*>("file_event_filter = LEFT,RIGHT,FIXATION,SACCADE,"
"BLINK,MESSAGE,BUTTON"));
eyecmd_printf(const_cast<char*>("file_sample_data = LEFT,RIGHT,GAZE,AREA,GAZERES,STATUS"));
// set link data (used for gaze cursor):
eyecmd_printf(const_cast<char*>("link_event_filter = LEFT,RIGHT,FIXATION,FIXUPDATE,SACCADE,BLINK,BUTTON"));
eyecmd_printf(const_cast<char*>("link_sample_data = LEFT,RIGHT,GAZE,GAZERES,AREA,STATUS"));
// Program button #5 for use in drift correction:
eyecmd_printf(const_cast<char*>("button_function 5 'accept_target_fixation'"));
// setup eyelink filtering: default is "1 2"
eyecmd_printf(const_cast<char*>("heuristic_filter = 1 2"));
eyelink_wait_for_mode_ready(500);
// make sure we're still alive:
if (!eyelink_is_connected() || break_pressed())
LFATAL("Connection to EyeLink broken or aborted");
/* TRIAL_VAR_LABELS message is recorded for EyeLink Data Viewer analysis
It specifies the list of trial variables for the trial
This should be written once only and put before the recording of
individual trials */
eyemsg_printf(const_cast<char*>("TRIAL_VAR_LABELS CONDITION"));
// Configure EyeLink to send fixation updates every 50 msec:
//eyecmd_printf("link_event_filter = LEFT,RIGHT,FIXUPDATE");
//eyecmd_printf("fixation_update_interval = 50");
//eyecmd_printf("fixation_update_accumulate = 50");
EyeTracker::start1();
#endif
}
