/// <summary>
/// Function to set all values of a pointer
/// </summary>
/// <param name="nr">number of pointer to set</param>
/// <param name="id">id of section</param>
/// <param name="length">length of section</param>
/// <param name="index">index of section</param>
public void setPointer(int nr, ushort id, int length, int index)
{
if (nr >= 0)
{
if (nr < _NrMandatory)
{
if (_MandatoryPointers[nr] == null)
{
_MandatoryPointers[nr] = new SCPPointer();
}
_MandatoryPointers[nr].Nr = id;
_MandatoryPointers[nr].Length = length;
_MandatoryPointers[nr].Index = index;
}
else if ((_OptionalPointers != null) &&
((nr - _NrMandatory) < _OptionalPointers.Length))
{
nr -= _NrMandatory;
if (_OptionalPointers[nr] == null)
{
_OptionalPointers[nr] = new SCPPointer();
}
_OptionalPointers[nr].Nr = id;
_OptionalPointers[nr].Length = length;
_OptionalPointers[nr].Index = index;
}
}
}
protected override int _Read(byte[] buffer, int offset)
{
/* Very stange, but most SCP files I got didn't seem to be live up to this law.
* the check will now only be doen when the Protocol Version Nr is greator equal
* to 14. This value might need changes in future.
*
* Reference 5.3.1 of the "Standard Communications protocol for computer-assisted
* electrocardiography".
*/
if ((ProtocolVersionNr >= 13) &&
((Reserved[0] != _Reserved[0]) ||
(Reserved[1] != _Reserved[1]) ||
(Reserved[2] != _Reserved[2]) ||
(Reserved[3] != _Reserved[3]) ||
(Reserved[4] != _Reserved[4]) ||
(Reserved[5] != _Reserved[5])))
{
return(0x1);
}
int nrPointers = (Length - Size) / SCPPointer.Size;
if (nrPointers < 12)
{
return(0x2);
}
for (int loper = 0; loper < _NrMandatory; loper++)
{
_MandatoryPointers[loper] = new SCPPointer();
int err = _MandatoryPointers[loper].Read(buffer, offset);
if (err != 0)
{
return(err << 2);
}
offset += SCPPointer.Size;
}
nrPointers -= _NrMandatory;
if (nrPointers > 0)
{
_OptionalPointers = new SCPPointer[nrPointers];
for (int loper = 0; loper < nrPointers; loper++)
{
_OptionalPointers[loper] = new SCPPointer();
int err = _OptionalPointers[loper].Read(buffer, offset);
if (err != 0)
{
return(err << 3);
}
offset += SCPPointer.Size;
}
}
return(0x0);
}
