/**
* A fast method to retrieve one row of data from the matrix as a BitArray.
*
* @param y The row to retrieve
* @param row An optional caller-allocated BitArray, will be allocated if null or too small
* @return The resulting BitArray - this reference should always be used even when passing
* your own row
*/
public BitArray GetRow(int y, BitArray row) {
if (row == null || row.GetSize() < width) {
row = new BitArray(width);
}
int offset = y * rowSize;
for (int x = 0; x < rowSize; x++) {
row.SetBulk(x << 5, bits[offset + x]);
}
return row;
}
