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SimpleGazeTracker.m
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function ret = SimpleGazeTracker(varargin)
% SimpeGazeTracker toolbox 0.5.0 (compatible with SimpleGazeTracker 0.9.0)
% Copyright (C) 2012-2015 Hiroyuki Sogo.
% Thanks to Ryuta Iseki and Yuta Kawabe for Matlab support.
%
% Distributed under the terms of the GNU General Public License (GPL).
%
% Usage:
%
% ===== Initialize SimpleGazeTracker toolbox =====
% %Initialize SimpleGazeTracker toolbox parameters
% param = SimpleGazeTracker('Initialize', wptr, wrect);
%
% %Update SimpleGazeTracker toolbox parameters
% ret = SimpleGazeTracker('UpdateParameters',param);
%
% %Get SimpleGazeTracker's camera image size
% ret = SimpleGazeTracker('GetCameraImageSize')
%
% ===== Open/close connection with SimpleGazeTracker =====
% %Open TCP/IP connection with SimpleGazeTracker
% ret = SimpleGazeTracker('Connect');
%
% %Insert information to the SimpleGazeTracker data file
% ret = SimpleGazeTracker('SendSettings', info)
%
% %Close TCP/IP connection
% ret = SimpleGazeTracker('CloseConnection');
%
% ===== Open/close data file =====
% %Open data file on SimpleGazeTracker
% ret = SimpleGazeTracker('OpenDataFile', filename, overwrite);
%
% %Close data file on SimpleGazeTracker
% ret = SimpleGazeTracker('CloseDataFile');
%
% ===== Calibration =====
% %Start Calibration procedure
% res = SimpleGazeTracker('CalibrationLoop');
%
% ===== Start/stop recording =====
% %Start recording
% ret = SimpleGazeTracker('StartRecording', message, wait);
%
% %Stop recording
% ret = SimpleGazeTracker('StopRecording', message, wait);
%
% ===== Commands during recording =====
% %Insert message into data file
% ret = SimpleGazeTracker('SendMessage', message);
%
% %Get latest gaze position
% pos = SimpleGazeTracker('GetEyePosition', ma, timeout);
%
% %Get latest gaze position list.
% msg = SimpleGazeTracker('GetEyePositionList', n, getPupil, timeout)
%
% ===== Commands immediately after recording =====
% %Get all messages inserted in the latest recording.
% msg = SimpleGazeTracker('GetWholeMessageList', timeout)
%
% %Get all gaze positions recorded in the latest recording.
% msg = SimpleGazeTracker('GetWholeEyePositionList', getPupil, timeout)
%
% ===== Off-line data analysis =====
% %Read SimpleGazeTracker CSV file.
% data = SimpleGazeTracker('ReadDataFile', filename)
%
persistent sgttbx_param;
persistent sgttbx_sockets;
ret = -1;
switch(varargin{1})
case 'Initialize'
if nargin == 1
disp('Window must be specified.')
return;
end
ret = sgttbx_initialize(varargin);
sgttbx_param = ret;
return;
case 'UpdateParameters'
isvalid = sgttbx_verifyparam(varargin{2});
if isvalid>=0
sgttbx_param = varargin{2};
end
ret = {isvalid, sgttbx_param};
return;
case 'GetCameraImageSize'
ret = sgttbx_getCameraImageSize(sgttbx_sockets);
return;
case 'OpenDataFile'
ret = sgttbx_openDataFile(sgttbx_sockets, varargin{2}, varargin{3});
return;
case 'CloseDataFile'
ret = sgttbx_closeDataFile(sgttbx_sockets);
return;
case 'Connect'
sgttbx_net('closeall')
res = sgttbx_connect(sgttbx_param);
if isstruct(res)
sgttbx_sockets = res;
ret = 0;
return;
else
return;
end
case 'CloseConnection'
sgttbx_net('closeall');
ret = 0;
return;
case 'SendMessage'
ret = sgttbx_sendMessage(sgttbx_sockets, varargin{2});
return;
case 'SendSettings'
ret = sgttbx_sendSettings(sgttbx_sockets, varargin{2});
return;
case 'CalibrationLoop'
ret = sgttbx_calibrationLoop(sgttbx_param, sgttbx_sockets);
return;
case 'StartRecording'
ret = sgttbx_startRecording(sgttbx_sockets, varargin{2}, varargin{3});
return;
case 'StopRecording'
ret = sgttbx_stopRecording(sgttbx_sockets, varargin{2}, varargin{3});
return;
case 'SendCommand'
ret = sgttbx_sendCommand(sgttbx_sockets, varargin{2});
return;
case 'GetEyePosition'
ret = sgttbx_getEyePosition(sgttbx_sockets, varargin{2}, varargin{3});
return;
case 'GetEyePositionList'
ret = sgttbx_getEyePositionList(sgttbx_sockets, varargin{2}, varargin{3}, varargin{4});
return;
case 'GetWholeEyePositionList'
ret = sgttbx_getWholeEyePositionList(sgttbx_sockets, varargin{2}, varargin{3});
return;
case 'GetWholeMessageList'
ret = sgttbx_getWholeMessageList(sgttbx_sockets, varargin{2});
return;
case 'ReadDataFile'
ret = sgttbx_readDataFile(varargin{2});
otherwise
disp(['Invalid command. (', varargin{1}, ')'])
end
function param = sgttbx_initialize(arg)
param.wptr = arg{2};
param.wrect = arg{3};
param.IPAddress = '192.168.1.1';
param.sendPort = 10000;
param.recvPort = 10001;
param.imageWidth = 320;
param.imageHeight = 240;
param.previewWidth = 640;
param.previewHeight = 480;
param.validationShift = 20;
param.showCalDisplay = 1;
param.numSamplesPerTrgpos = 10;
param.caltargetMotionDuration = 1.0;
param.caltargetDurationPerPos = 2.0;
param.calGetSampleDelay = 0.4;
param.calArea = arg{3};
cx = (param.wrect(3)-param.wrect(1))/2;
cy = (param.wrect(4)-param.wrect(2))/2;
param.calTargetPos = [ cx, cy;
cx-350,cy-250; cx-350,cy; cx-350,cy+250;
cx ,cy-250; cx ,cy; cx ,cy+250;
cx+350,cy-250; cx+350,cy; cx+350,cy+250];
sgttbx_param = param;
function res = sgttbx_connect(sgttbx_param)
res = -1;
if ~isstruct(sgttbx_param)
disp('Parameters may not be initialized.')
return;
end
sendcon = sgttbx_net('tcpconnect',sgttbx_param.IPAddress,sgttbx_param.sendPort, 'noblock');
if sendcon < 0
disp('tcpconnect was Failed.')
return;
end
recvsock = sgttbx_net('tcpsocket',sgttbx_param.recvPort);
if recvsock < 0
disp('tcpsocket was Failed')
return;
end
startTime = GetSecs();
while GetSecs()-startTime<5
recvcon = sgttbx_net(recvsock, 'tcplisten');
if recvcon>=0
break;
end
WaitSecs(0.5);
end
if recvcon < 0
disp('tcplisten Failed')
return;
end
sgttbx_net(recvcon,'setreadtimeout',1.0);
[ip,port] = sgttbx_net(recvcon, 'gethost');
disp(['Connected from ', num2str(ip(1)), '.', num2str(ip(2)), '.', num2str(ip(3)), '.', num2str(ip(4)), ':', num2str(port)])
sockets.recvsock = recvsock;
sockets.sendcon = sendcon;
sockets.recvcon = recvcon;
res = sockets;
return;
function res = sgttbx_verifyparam(newparam)
res = -1;
if ~(isnumeric(newparam.wrect) && length(newparam.wrect)==4)
disp('calArea must be an array of four numbers.')
return;
end
if ~ischar(newparam.IPAddress)
disp('IP address must be a string.')
return;
end
if ~(isnumeric(newparam.sendPort) && newparam.sendPort>0)
disp('sendPort must be a positive integer.')
return;
end
if ~(isnumeric(newparam.recvPort) && newparam.recvPort>0)
disp('recvPort must be a positive integer.')
return;
end
if ~(isnumeric(newparam.imageWidth) && newparam.imageWidth>0)
disp('imageWidth must be a positive integer.')
return;
end
if ~(isnumeric(newparam.imageHeight) && newparam.imageHeight>0)
disp('imageHeight must be a positive integer.')
return;
end
if ~(isnumeric(newparam.previewWidth) && newparam.previewWidth>0)
disp('previewWidth must be a positive integer.')
return;
end
if ~(isnumeric(newparam.previewHeight) && newparam.previewHeight>0)
disp('previewHeight must be a positive integer.')
return;
end
if ~(isfloat(newparam.validationShift) && newparam.validationShift>=0)
disp('validationShift must be zero or a positive number.')
return;
end
if ~(newparam.showCalDisplay==0 || newparam.showCalDisplay==1)
disp('showCalDisplay must be 0 or 1.')
return;
end
if ~(isnumeric(newparam.numSamplesPerTrgpos) && newparam.numSamplesPerTrgpos>0)
disp('numSamplesPerTrgpos must be a positive integer.')
return;
end
if ~(isfloat(newparam.caltargetMotionDuration) && newparam.caltargetMotionDuration>=0)
disp('caltargetMotionDuration must be zero or a positive number.')
return;
end
if ~(isfloat(newparam.caltargetDurationPerPos) && newparam.caltargetDurationPerPos>0)
disp('caltargetDurationPerPos must be a positive number.')
return;
end
if ~(isfloat(newparam.calGetSampleDelay) && newparam.calGetSampleDelay>=0)
disp('calGetSampleDelay must be zero or a positive number.')
return;
end
if newparam.caltargetDurationPerPos < newparam.caltargetMotionDuration + newparam.calGetSampleDelay
disp('caltargetDurationPerPos must be greater than newparam.caltargetMotionDuration + newparam.calGetSampleDelay.')
return;
end
if ~(isnumeric(newparam.calArea) && length(newparam.calArea)==4)
disp('calArea must be an array of four numbers.')
return;
end
for i=1:length(newparam.calTargetPos)
if ~(isnumeric(newparam.calTargetPos) && length(newparam.calTargetPos(i,:))==2)
disp('calTargetPos must be a numeric array of Nx2.')
return;
end
end
res = 0;
function imgsize = sgttbx_getCameraImageSize(sockets)
imgsize = [-1, -1];
if ~isstruct(sockets)
return
end
sgttbx_sendCommand(sockets, 'getCameraImageSize');
result = [];
startTime = GetSecs();
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
result = data(1:term(1)-1);
break;
else
result = [result, data];
end
if GetSecs()-startTime > 0.1 %timeout
return
end
end
if ~isempty(result)
resnum = str2num(result);
if length(resnum)==2
imgsize = resnum;
end
end
function res = sgttbx_openDataFile(sockets, fname, overwrite)
if ~(overwrite==1 || overwrite==0)
res = -1;
return;
end
command = ['openDataFile',0,fname,0,num2str(overwrite)];
res = sgttbx_sendCommand(sockets, command);
function res = sgttbx_closeDataFile(sockets)
res = sgttbx_sendCommand(sockets, 'closeDataFile');
function res = sgttbx_sendCommand(sockets, command)
res = -1;
if ~isstruct(sockets)
return;
end
if sockets.sendcon < 0
return;
end
if sgttbx_net(sockets.sendcon,'status') == 0
return;
end
%fdisp(stderr,command);
command(end+1) = 0;
%start = GetSecs();
sgttbx_net(sockets.sendcon, 'write', command);
%fdisp(stderr,1000*(GetSecs()-start));
res = 0;
function res = sgttbx_sendMessage(sockets, message)
res = sgttbx_sendCommand(sockets, ['insertMessage',0,message]);
return;
function res = sgttbx_sendSettings(sockets, info)
res = 0;
infostr = '';
if ~iscell(info)
res = -1;
return;
end
for i=1:length(info)
if length(info{i}) ~= 2
res = -1;
return
end
if isnumeric(info{i}{2})
valuestr = num2str(info{i}{2});
else
valuestr = info{i}{2};
end
infostr = [infostr, '#', info{i}{1}, ',', valuestr, '/'];
end
infostr = infostr(1:end-1);
sgttbx_sendCommand(sockets, ['insertSettings',0,infostr]);
return;
function msg = sgttbx_getCurrentMenu(sockets)
msg = '';
if ~isstruct(sockets)
return
end
sgttbx_sendCommand(sockets, 'getCurrMenu');
startTime = GetSecs();
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
msg = data(1:term(1)-1);
return;
else
msg = [msg, data];
end
if GetSecs()-startTime > 0.1 %timeout
return
end
end
function img = sgttbx_getCameraImage(param, sockets)
img = [];
if ~isstruct(sockets)
return
end
sgttbx_sendCommand(sockets, 'getImageData');
while 1
data = sgttbx_net(sockets.recvcon, 'read', 'uint8');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
img = [img, data(1:term(1)-1)];
break;
else
img = [img, data];
end
end
expectedSize = param.imageWidth*param.imageHeight;
if length(img) < expectedSize
img = [img, zeros(1,expectedSize-length(img),'uint8')];
elseif length(img) > expectedSize
img = img(1:expectedSize);
end
img = transpose(reshape(uint8(img),param.imageWidth,param.imageHeight));
function res = sgttbx_calibrationLoop(param, sockets)
res = {'q',0};
calmsgstr = 'No calibration results';
if ~isstruct(param)
disp('No parameter.')
return;
end
if ~isstruct(sockets)
disp('No sockets.')
return;
end
KbName('UnifyKeyNames');
Screen('TextSize',param.wptr, 24);
Screen('TextStyle', param.wptr, 0);
msgstr = sgttbx_getCurrentMenu(sockets);
showCameraImage = 0;
showCalResults = 0;
isCalDone = 0;
calimgtex = -1;
while 1
[keyIsDown, secs, keyCode, deltaSecs] = KbCheck();
if keyCode(KbName('RightArrow'))==1
sgttbx_sendCommand(sockets, 'key_RIGHT');
WaitSecs(0.1);
msgstr = sgttbx_getCurrentMenu(sockets);
end
if keyCode(KbName('LeftArrow'))==1
sgttbx_sendCommand(sockets, 'key_LEFT');
WaitSecs(0.1);
msgstr = sgttbx_getCurrentMenu(sockets);
end
if keyCode(KbName('UpArrow'))==1
sgttbx_sendCommand(sockets, 'key_UP');
WaitSecs(0.2);
msgstr = sgttbx_getCurrentMenu(sockets);
end
if keyCode(KbName('DownArrow'))==1
sgttbx_sendCommand(sockets, 'key_DOWN');
WaitSecs(0.2);
msgstr = sgttbx_getCurrentMenu(sockets);
end
if keyCode(KbName('ESCAPE'))==1
if calimgtex>=0
Screen('Close', calimgtex);
end
res = {'ESCAPE',isCalDone};
return;
end
if keyCode(KbName('q'))==1
sgttbx_sendCommand(sockets, 'key_Q');
if calimgtex>=0
Screen('Close', calimgtex);
end
res = {'q',isCalDone};
return;
end
if keyCode(KbName('z'))==1
if showCameraImage == 1
showCameraImage = 0;
else
showCameraImage = 1;
end
WaitSecs(0.5);
end
if keyCode(KbName('x'))==1
if showCalResults == 1
showCalResults = 0;
sgttbx_sendCommand(sockets,['toggleCalResult',0,'0']);
else
showCalResults = 1;
sgttbx_sendCommand(sockets,['toggleCalResult',0,'1']);
end
WaitSecs(0.5);
end
if keyCode(KbName('c'))==1
sgttbx_doCalibration(param, sockets);
calmsgstr = sgttbx_getCalResults(sockets, 0.2);
calimgtex = sgttbx_drawCalResults(param, sockets, calimgtex, 0.2);
isCalDone = 1;
showCalResults = 1;
end
if keyCode(KbName('v'))==1
if(isCalDone==1)
sgttbx_doValidation(param, sockets);
calmsgstr = sgttbx_getCalResults(sockets, 0.2);
calimgtex = sgttbx_drawCalResults(param, sockets, calimgtex, 0.2);
showCalResults = 1;
end
end
if keyCode(KbName('s'))==1
if(isCalDone==1)
sgttbx_sendCommand(sockets, 'saveCalValResultsDetail');
WaitSecs(0.5); %prevent chattering
end
end
if keyCode(KbName('i'))==1
sgttbx_sendCommand(sockets, ['saveCameraImage',0,'SGT_',datestr(now,'yyyy-mm-dd-HHMMSS-FFF'),'.bmp']);
WaitSecs(0.5); %prevent chattering
end
Screen('FillRect',param.wptr,127);
if showCalResults==1
if isCalDone
Screen('DrawTexture',param.wptr,calimgtex);
else
Screen('FillRect',param.wptr,0);
end
Screen('DrawText',param.wptr,calmsgstr,(param.wrect(3)-param.imageWidth)/2,...
(param.wrect(4)+param.imageHeight)/2+10,[255, 255, 255, 255]);
else
if showCameraImage==1
img = sgttbx_getCameraImage(param, sockets);
imgtex = Screen('MakeTexture', param.wptr, img);
Screen('DrawTexture', param.wptr, imgtex);
Screen('Close',imgtex);
end
Screen('DrawText',param.wptr,msgstr,(param.wrect(3)-param.imageWidth)/2,...
(param.wrect(4)+param.imageHeight)/2+10,[255, 255, 255, 255]);
end
Screen('Flip', param.wptr);
end
function res = sgttbx_startRecording(sockets, message, wait)
res = sgttbx_sendCommand(sockets,['startRecording',0,message]);
WaitSecs(wait);
function res = sgttbx_stopRecording(sockets, message, wait)
res = sgttbx_sendCommand(sockets,['stopRecording',0,message]);
WaitSecs(wait);
function pos = sgttbx_getEyePosition(sockets, n, timeout)
pos = {[-10000,-10000],0};
sgttbx_sendCommand(sockets, ['getEyePosition',0,num2str(n)]);
result = [];
startTime = GetSecs();
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
result = [result; data(1:term(1)-1)];
break;
else
result = [result, data];
end
if GetSecs()-startTime > timeout
return
end
end
if ~isempty(result)
resnum = str2num(result);
if length(resnum)==3
pos{1} = resnum(1:2);
pos{2} = resnum(3);
end
end
function res = isBinocularMode(sockets)
sgttbx_sendCommand(sockets, 'isBinocularMode');
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
msg = data(1:term(1)-1);
if msg(1)=='1'
res = 1;
else
res = 0;
end
return;
end
end
function res = sgttbx_doCalibration(param, sockets)
res = sgttbx_sendCommand(sockets, ['startCal',0,...
num2str(param.calArea(1)),',',...
num2str(param.calArea(2)),',',...
num2str(param.calArea(3)),',',...
num2str(param.calArea(4))]);
if res<0
return
end
while 1
index = randperm(length(param.calTargetPos)-1)+1;
if param.calTargetPos(index(1),1) ~= param.calTargetPos(1,1) || param.calTargetPos(index(1),2) ~= param.calTargetPos(1,2)
break;
end
end
index = [1, index];
calCheckList = zeros(1,length(param.calTargetPos));
cx = param.calTargetPos(1,1);
cy = param.calTargetPos(1,2);
Screen('FillRect',param.wptr,127);
Screen('FillRect',param.wptr,0,[cx-5,cy-5,cx+5,cy+5]);
Screen('Flip',param.wptr);
while 1
[keyIsDown, secs, keyCode, deltaSecs] = KbCheck();
[x,y,b,f,v,vi]=GetMouse(param.wptr);
if keyCode(KbName('Space'))==1 || b(1)==1
break;
end
WaitSecs(0.2);
end
startTime = GetSecs();
while 1
currentTime = GetSecs()-startTime;
t = mod(currentTime, param.caltargetDurationPerPos);
prevTargetPosition = floor((currentTime-t)/param.caltargetDurationPerPos)+1; %Indics starts 1 in Matlab/octave
currentTargetPosition = prevTargetPosition+1;
if currentTargetPosition > length(param.calTargetPos)
break
end
if t<param.caltargetMotionDuration
p1 = t/param.caltargetMotionDuration;
p2 = 1.0-t/param.caltargetMotionDuration;
cx = p1*param.calTargetPos(index(currentTargetPosition),1) + ...
p2*param.calTargetPos(index(prevTargetPosition),1);
cy = p1*param.calTargetPos(index(currentTargetPosition),2) + ...
p2*param.calTargetPos(index(prevTargetPosition),2);
else
cx = param.calTargetPos(index(currentTargetPosition),1);
cy = param.calTargetPos(index(currentTargetPosition),2);
end
if calCheckList(prevTargetPosition)==0 && t>param.caltargetMotionDuration+param.calGetSampleDelay
sgttbx_sendCommand(sockets, ['getCalSample',0,...
num2str(param.calTargetPos(index(currentTargetPosition),1)),',',...
num2str(param.calTargetPos(index(currentTargetPosition),2)),',',...
num2str(param.numSamplesPerTrgpos),0]);
calCheckList(prevTargetPosition) = 1;
end
Screen('FillRect',param.wptr,127);
Screen('FillRect',param.wptr,0,[cx-5,cy-5,cx+5,cy+5]);
Screen('Flip',param.wptr);
end
sgttbx_sendCommand(sockets,'endCal');
function res = sgttbx_doValidation(param, sockets)
res = sgttbx_sendCommand(sockets, ['startVal',0,...
num2str(param.calArea(1)),',',...
num2str(param.calArea(2)),',',...
num2str(param.calArea(3)),',',...
num2str(param.calArea(4))]);
if res<0
return
end
valTargetPos = zeros(size(param.calTargetPos));
valTargetPos(1,:) = param.calTargetPos(1,:);
for i=2:length(param.calTargetPos) % don't modify first element
valTargetPos(i,1) = param.calTargetPos(i,1) + 2*(mod(floor(rand()*10),2)-0.5) * param.validationShift;
valTargetPos(i,2) = param.calTargetPos(i,2) + 2*(mod(floor(rand()*10),2)-0.5) * param.validationShift;
end
while 1
index = randperm(length(valTargetPos)-1)+1;
if valTargetPos(index(1),1) ~= valTargetPos(1,1) || valTargetPos(index(1),2) ~= valTargetPos(1,2)
break;
end
end
index = [1, index];
calCheckList = zeros(1,length(valTargetPos));
cx = valTargetPos(1,1);
cy = valTargetPos(1,2);
Screen('FillRect',param.wptr,127);
Screen('FillRect',param.wptr,0,[cx-5,cy-5,cx+5,cy+5]);
Screen('Flip',param.wptr);
while 1
[keyIsDown, secs, keyCode, deltaSecs] = KbCheck();
[x,y,b,f,v,vi]=GetMouse(param.wptr);
if keyCode(KbName('Space'))==1 || b(1)==1
break;
end
WaitSecs(0.2);
end
startTime = GetSecs();
while 1
currentTime = GetSecs()-startTime;
t = mod(currentTime, param.caltargetDurationPerPos);
prevTargetPosition = floor((currentTime-t)/param.caltargetDurationPerPos)+1; %Indics starts 1 in Matlab/octave
currentTargetPosition = prevTargetPosition+1;
if currentTargetPosition > length(valTargetPos)
break
end
if t<param.caltargetMotionDuration
p1 = t/param.caltargetMotionDuration;
p2 = 1.0-t/param.caltargetMotionDuration;
cx = p1*valTargetPos(index(currentTargetPosition),1) + ...
p2*valTargetPos(index(prevTargetPosition),1);
cy = p1*valTargetPos(index(currentTargetPosition),2) + ...
p2*valTargetPos(index(prevTargetPosition),2);
else
cx = valTargetPos(index(currentTargetPosition),1);
cy = valTargetPos(index(currentTargetPosition),2);
end
if calCheckList(prevTargetPosition)==0 && t>param.caltargetMotionDuration+param.calGetSampleDelay
sgttbx_sendCommand(sockets, ['getCalSample',0,...
num2str(valTargetPos(index(currentTargetPosition),1)),',',...
num2str(valTargetPos(index(currentTargetPosition),2)),',',...
num2str(param.numSamplesPerTrgpos),0]);
calCheckList(prevTargetPosition) = 1;
end
Screen('FillRect',param.wptr,127);
Screen('FillRect',param.wptr,0,[cx-5,cy-5,cx+5,cy+5]);
Screen('Flip',param.wptr);
end
sgttbx_sendCommand(sockets,'endVal');
function offscr = sgttbx_drawCalResults(param, sockets, calimgtex, timeout)
sgttbx_sendCommand(sockets,'getCalResultsDetail');
result = [];
startTime = GetSecs();
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
result = [result, data(1:term(1)-1)];
break;
else
result = [result, data];
end
if GetSecs()-startTime>timeout
break;
end
end
if calimgtex>=0
Screen('Close',calimgtex);
end
if ~isempty(result)
points = str2num(result);
[offscr, rect] = Screen('OpenOffscreenWindow', param.wptr, 127, param.wrect);
for iter=1:length(points)/4
Screen('DrawLine', offscr, 0, points(4*(iter-1)+1), points(4*(iter-1)+2), points(4*(iter-1)+3), points(4*iter));
end
else
[offscr, rect] = Screen('OpenOffscreenWindow', param.wptr, 127, param.wrect);
end
function res = sgttbx_getCalResults(sockets, timeout)
res = 'Calibration failed (communication error?)';
sgttbx_sendCommand(sockets, 'getCalResults');
result = [];
startTime = GetSecs();
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
result = [result, data(1:term(1)-1)];
break;
else
result = [result, data];
end
if GetSecs()-startTime>timeout
break;
end
end
if ~isempty(result)
result = str2num(result);
if length(result)==2
res = ['AvgError: ', num2str(result(1)), ' MaxError: ', num2str(result(2))];
end
end
function res = sgttbx_getWholeMessageList(sockets, timeout)
res = {};
sgttbx_sendCommand(sockets, 'getWholeMessageList');
result = [];
startTime = GetSecs();
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
result = [result, data(1:term(1)-1)];
break;
else
result = [result, data];
end
if GetSecs()-startTime>timeout
break;
end
end
if isempty(result) %no messages
return;
end
%cr = find(result==0x0D);
%lf = find(result==0x0A);
cr = regexp(result,'\r');
lf = regexp(result,'\n');
if ~isempty(lf) %LF only or CR+LF
nMsg = length(lf)+1;
sep = [0,lf,length(result)+1];
elseif ~isempty(cr) %CR only
nMsg = length(cr)+1;
sep = [0,cr,length(result)+1];
else %single line
nMsg = 1;
sep = [0,length(result)+1];
end
res = cell(nMsg,2);
nEmpty = [];
for i=1:nMsg
msgstr = result(sep(i)+1:sep(i+1)-1);
c = find(msgstr==',');
if isempty(c)
nEmpty = [nEmpty,i];
continue
end
res(i,1) = { str2num(msgstr(c(1)+1:c(2)-1)) };
res(i,2) = { msgstr(c(2)+1:end) };
end
if ~isempty(nEmpty)
for i=length(nEmpty):-1:1
res(i,:)=[];
end
end
function res = sgttbx_getWholeEyePositionList(sockets, getPupil, timeout)
res = [];
sgttbx_sendCommand(sockets, ['getWholeEyePositionList', 0, num2str(getPupil)]);
result = [];
startTime = GetSecs();
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
result = [result, data(1:term(1)-1)];
break;
else
result = [result, data];
end
if GetSecs()-startTime>timeout
break;
end
end
if isempty(result) %no data
return;
end
points = str2num(result);
if getPupil==1
res = transpose(reshape(points,4,length(points)/4)); %4=(timestamp, x, y, pupil)
else
res = transpose(reshape(points,3,length(points)/3)); %3=(timestamp, x, y)
end
function res = sgttbx_getEyePositionList(sockets, n, getPupil, timeout)
res = [];
sgttbx_sendCommand(sockets, ['getEyePositionList', 0, num2str(n), 0, num2str(getPupil)]);
result = [];
startTime = GetSecs();
while 1
data = sgttbx_net(sockets.recvcon,'read');
if isempty(data)
continue
end
term = find(data==0);
if term>=0
result = [result, data(1:term(1)-1)];
break;
else
result = [result, data];
end
if GetSecs()-startTime>timeout
break;
end
end
if isempty(result) %no data
return;
end
points = str2num(result);
if getPupil==1
res = transpose(reshape(points,4,length(points)/4)); %4=(timestamp, x, y, pupil)
else
res = transpose(reshape(points,3,length(points)/3)); %3=(timestamp, x, y)
end
function res = sgttbx_readDataFile(filename)
if ~ischar(filename)
disp('parameter must be a string')
res = [];
return
end
fp = fopen(filename,'r');
if fp<0
disp(['Could not oepn ', filename,'.'])
res = [];
return
end
DATA = [];
inTrial = false;
M = {};
T = [];
LHV = [];
RHV = [];
LP = [];
RP = [];
HV = [];
P = [];
C = [];
CAL = [];
PARAM = [];
recordedEye = 'L';
idxLX = 1;
idxLY = 2;
idxRX = 3;
idxRY = 4;
idxLP = -1;
idxRP = -1;
idxX = 1;
idxY = 2;
idxP = -1;
idxC = -1;
l = fgetl(fp);
while ischar(l)
data = sgttbx_cnv_split(l,',');