void DataMatrix::internalUpdate() {
if (file()) {
file()->writeLock();
} else {
return;
}
// see if we can turn off skipping (only check if skipping enabled)
if (_doSkip && _samplesPerFrameCache == 1 && _skip < 2) {
_doSkip = false;
}
// first get the real start and end range
int realXStart;
int realYStart;
int xSize = file()->matrix().optional(_field).xSize;
int ySize = file()->matrix().optional(_field).ySize;
if (_reqXStart < 0) {
// counting from end
realXStart = xSize - _reqNX;
} else {
realXStart = _reqXStart;
}
if (_reqYStart < 0) {
// counting from end
realYStart = ySize - _reqNY;
} else {
realYStart = _reqYStart;
}
if (_reqNX < 1) {
// read to end
_nX = xSize - _reqXStart;
} else {
_nX = _reqNX;
}
if (_reqNY < 1) {
// read to end
_nY = ySize - _reqYStart;
} else {
_nY = _reqNY;
}
// now do some sanity checks
if (realXStart > xSize - 1) {
realXStart = xSize - 1;
}
if (realXStart < 0) {
realXStart = 0;
}
if (realYStart > ySize - 1) {
realYStart = ySize - 1;
}
if (realYStart < 0) {
realYStart = 0;
}
if (_nX < 1) {
_nX = 1;
}
if (realXStart + _nX > xSize) {
_nX = xSize - realXStart;
}
if (_nY < 1) {
_nY = 1;
}
if (realYStart + _nY > ySize) {
_nY = ySize - realYStart;
}
// do the reading; skip or non-skip version
if (_doSkip) {
doUpdateSkip(realXStart, realYStart);
} else {
doUpdateNoSkip(realXStart, realYStart);
}
// remember these as the last updated range
_lastXStart = realXStart;
_lastYStart = realYStart;
_lastNX = _nX;
_lastNY = _nY;
_lastDoAve = _doAve;
_lastDoSkip = _doSkip;
_lastSkip = _skip;
file()->unlock();
Matrix::internalUpdate();
}
KstObject::UpdateType KstRMatrix::doUpdate(bool force) {
if (!_file) {
return NO_CHANGE;
}
// see if we can turn off skipping (only check if skipping enabled)
if (_doSkip && _samplesPerFrameCache == 1 && _skip < 2) {
_doSkip = false;
}
// first get the real start and end range
int xSize, ySize, realXStart, realYStart;
_file->matrixDimensions(_field, &xSize, &ySize);
if (_reqXStart < 0) {
// counting from end
realXStart = xSize - _reqNX;
} else {
realXStart = _reqXStart;
}
if (_reqYStart < 0) {
// counting from end
realYStart = ySize - _reqNY;
} else {
realYStart = _reqYStart;
}
if (_reqNX < 1) {
// read to end
_nX = xSize - _reqXStart;
} else {
_nX = _reqNX;
}
if (_reqNY < 1) {
// read to end
_nY = ySize - _reqYStart;
} else {
_nY = _reqNY;
}
// now do some sanity checks
if (realXStart > xSize - 1) {
realXStart = xSize - 1;
}
if (realXStart < 0) {
realXStart = 0;
}
if (realYStart > ySize - 1) {
realYStart = ySize - 1;
}
if (realYStart < 0) {
realYStart = 0;
}
if (_nX < 1) {
_nX = 1;
}
if (realXStart + _nX > xSize) {
_nX = xSize - realXStart;
}
if (_nY < 1) {
_nY = 1;
}
if (realYStart + _nY > ySize) {
_nY = ySize - realYStart;
}
// do the reading; skip or non-skip version
if (_doSkip) {
if (!doUpdateSkip(realXStart, realYStart, force)) {
return NO_CHANGE;
}
} else {
if (!doUpdateNoSkip(realXStart, realYStart, force)) {
return NO_CHANGE;
}
}
// remember these as the last updated range
_lastXStart = realXStart;
_lastYStart = realYStart;
_lastNX = _nX;
_lastNY = _nY;
_lastDoAve = _doAve;
_lastDoSkip = _doSkip;
_lastSkip = _skip;
return KstMatrix::internalUpdate(UPDATE);
}