@Override
public Row get() {
synchronized (sync) {
if (end) {
return null;
}
return onBase ? baseCursor.get() : deltaCursor.get();
}
}
@Override
public Row get() {
if (cursor == null) {
return null;
}
return cursor.get();
}
/** Load the current row. */
void loadCurrent() {
synchronized (sync) {
baseRow = baseCursor.getSearchRow();
deltaRow = deltaCursor.get();
needNewDelta = false;
needNewBase = false;
}
}
private void scanInRasterOrder(Cursor<V> cur, RandomAccess<V> marker, RandomAccess<T> mask) {
assert cur != null;
assert marker != null;
assert mask != null;
cur.setToOrigin();
while (cur.hasNextFwd()) {
cur.get().set(checkAroundCursor(cur, marker, mask, m_neighboursPlus));
// this is NO imglib cursor, so fwd must be the last
// call
cur.fwd();
}
}
private void scanInAntiRasterOrder(Cursor<V> cur, RandomAccess<V> marker, RandomAccess<T> mask) {
assert cur != null;
assert marker != null;
assert mask != null;
cur.setLastPos();
while (cur.hasNextBwd()) {
cur.get().set(checkAroundCursor(cur, marker, mask, m_neighboursMinus));
checkPixels(cur, marker, mask, m_neighboursMinus);
// this is NO imglib cursor, so bwd must be the last
// call
cur.bwd();
}
}
private void loadNext(boolean base) {
synchronized (sync) {
if (base) {
if (step(baseCursor)) {
baseRow = baseCursor.getSearchRow();
} else {
baseRow = null;
}
} else {
if (step(deltaCursor)) {
deltaRow = deltaCursor.get();
} else {
deltaRow = null;
}
}
}
}
private V checkAroundCursor(
Cursor<V> cur, RandomAccess<V> marker, RandomAccess<T> mask, long[][] strucElement) {
V val = cur.get().copy();
for (long[] e : strucElement) {
for (int i = 0; i < e.length; i++) {
marker.setPosition(cur.getIntPosition(i) + e[i], i);
}
val = morphOp(val.copy(), marker.get().copy());
}
mask.setPosition(cur.getRandomAccess());
val = pointwiseOp(val, mask.get());
return val;
}
private void checkPixels(
Cursor<V> cur, RandomAccess<V> marker, RandomAccess<T> mask, long[][] strucElement) {
V p = cur.get().copy();
for (long[] e : strucElement) {
for (int i = 0; i < e.length; i++) {
marker.setPosition(cur.getIntPosition(i) + e[i], i);
mask.setPosition(cur.getIntPosition(i) + e[i], i);
}
V q = marker.get().copy();
T i = mask.get().copy();
if (checkPixelAddToQueue(p, q, i)) {
addToQueue(cur.getRandomAccess());
return;
}
}
}
