// ######################################################################
void EyeTrackerEyeLink::openSDL()
{
#ifdef HAVE_EYELINK
// set the display characteristics:
DISPLAYINFO di;
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;
// open the display with our wishes:
if (init_expt_graphics(NULL, &di))
LFATAL("Cannot open display");
// see what we actually got:
get_display_information(&di);
LINFO("DISPLAYINFO: [%dx%d}: (%d,%d)-(%d,%d) %dbpp %.1fHz",
int(di.width), int(di.height), int(di.left), int(di.top),
int(di.right), int(di.bottom), int(di.bits), di.refresh);
if (di.palsize) LFATAL("Paletized color modes not supported");
// Prepare for calibration and other settings:
set_target_size(10, 2);
set_calibration_colors(&target_foreground_color, &target_background_color);
set_cal_sounds(const_cast<char*>(""), const_cast<char*>(""), const_cast<char*>(""));
set_dcorr_sounds(const_cast<char*>(""), const_cast<char*>("off"), const_cast<char*>("off"));
// Setup calibration type:
eyecmd_printf(const_cast<char*>("calibration_type = HV9"));
// Configure tracker for display:
eyecmd_printf(const_cast<char*>("screen_pixel_coords = %ld %ld %ld %ld"),
di.left, di.top, di.right, di.bottom);
if (di.refresh > 40.0F)
eyemsg_printf(const_cast<char*>("FRAMERATE %1.2f Hz."), di.refresh);
#endif
}
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;
}
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;
}