//===========================================================================
int CSerialThread::m_WriteData( int * piItems, int nItems ){
IScanData isdTmp;
isdTmp.dLocalTimeMs = TimeStampMs();
isdTmp.iRawX = piItems[0];
isdTmp.iRawY = piItems[1];
if( nItems > 2 ) {
// for some reason the data in ISCAN serial output are multiplied by 10
isdTmp.iDigIn = piItems[2]/10;
// TODO: process synchro timestamps
// Check time elapsed
// Check if rollover occured
// Update actuall frame counter
// Calc synchro timestamp
isdTmp.dSyncTimeMs = 0;
}
else {
isdTmp.iDigIn = 0;
isdTmp.dSyncTimeMs = 0;
}
// save values into the buffer
WriteData(&isdTmp, 1);
return 0;
}
//===========================================================================
int CEyeTrack::m_WriteData( int * piItems, int nItems ){
IScanFrameStruct isdTmp;
int iFrame, iDigIn, nMissed;
isdTmp.dLocalTimeMs = TimeStampMs();
isdTmp.iRawX = piItems[0];
isdTmp.iRawY = piItems[1];
if( nItems > 2 ) {
// for some reason the data in ISCAN serial output are multiplied by 10
iDigIn = ( piItems[2]/10 );
// use all but the last 4 bits of the previous frame, last 4 bits are taken from iDigIn
iFrame = (m_iPrevFrame & 0xFFFFFFF0) + iDigIn;
if( iFrame < m_iPrevFrame ) iFrame += 0x10;
if( iFrame == m_iPrevFrame ) { // no frame input on DigIn ?
nMissed = 0;
}
else {
nMissed = iFrame - m_iPrevFrame -1;
}
if( nMissed ){
m_iMissCount++;
m_nMissedFrames += nMissed;
}
isdTmp.iFrame = iFrame;
m_iPrevFrame = iFrame;
}
else {
isdTmp.iFrame = 0;
}
// save values into the buffer
WriteData(&isdTmp, 1);
m_ReadCount++;
return 0;
}
