34   if (_virtPos >= _size)  in Read()
41     const UInt64 rem = _size - _virtPos;  in Read()
45   UInt64 newPos = _startOffset + _virtPos;  in Read()
55   _virtPos += size;  in Read()
64     case STREAM_SEEK_CUR: offset += _virtPos; break;  in Seek()
70   _virtPos = offset;  in Seek()
72     *newPosition = _virtPos;  in Seek()
92   if (_virtPos >= Size)  in Read()
95     UInt64 rem = Size - _virtPos;  in Read()
105     const UInt32 virtBlock = (UInt32)(_virtPos >> BlockSizeLog);  in Read()
106     const UInt32 offsetInBlock = (UInt32)_virtPos & (blockSize - 1);  in Read()
128   _virtPos += size;  in Read()
138     case STREAM_SEEK_CUR: offset += _virtPos; break;  in Seek()
144   if (_virtPos != (UInt64)offset)  in Seek()
146   _virtPos = offset;  in Seek()
157   if (_virtPos >= Extents.Back().Virt)  in Read()
168     if (_virtPos < Extents[mid].Virt)  in Read()
175   UInt64 phyPos = extent.Phy + (_virtPos - extent.Virt);  in Read()
183   UInt64 rem = Extents[left + 1].Virt - _virtPos;  in Read()
189   _virtPos += size;  in Read()
200     case STREAM_SEEK_CUR: offset += _virtPos; break;  in Seek()
206   _virtPos = offset;  in Seek()
208     *newPosition = _virtPos;  in Seek()
246   _virtPos += cur;  in Read()
255     case STREAM_SEEK_CUR: offset += _virtPos; break;  in Seek()
262       _virtPos = pos - Offset;  in Seek()
264         *newPosition = _virtPos;  in Seek()
271   _virtPos = offset;  in Seek()
273     *newPosition = _virtPos;  in Seek()
274   return Stream->Seek(Offset + _virtPos, STREAM_SEEK_SET, NULL);  in Seek()
281   if (_virtPos >= _size)  in Read()
287   UInt64 rem = _size - _virtPos;  in Read()
291   UInt64 newPos = _startOffset + _virtPos;  in Read()
313   _virtPos += size;  in Read()
322     case STREAM_SEEK_CUR: offset += _virtPos; break;  in Seek()
328   _virtPos = offset;  in Seek()
330     *newPosition = _virtPos;  in Seek()
340   _virtPos += cur;  in Write()
341   if (_virtSize < _virtPos)  in Write()
342     _virtSize = _virtPos;  in Write()
351     case STREAM_SEEK_CUR: offset += _virtPos; break;  in Seek()
357   _virtPos = offset;  in Seek()
359     *newPosition = _virtPos;  in Seek()
360   return Stream->Seek(Offset + _virtPos, STREAM_SEEK_SET, NULL);  in Seek()