public virtual bool ValuesAreEqual(MarshallingInformation mi1, MarshallingInformation mi2){
if (mi1 == mi2) return true;
if (mi1 == null || mi2 == null) return false;
if (mi1.Class != mi2.Class) return false;
if (mi1.Cookie != mi2.Cookie) return false;
if (mi1.ElementSize != mi2.ElementSize) return false;
if (mi1.ElementType != mi2.ElementType) return false;
if (mi1.NativeType != mi2.NativeType) return false;
if (mi1.NumberOfElements != mi2.NumberOfElements) return false;
if (mi1.ParamIndex != mi2.ParamIndex) return false;
if (mi1.Size != mi2.Size) return false;
return true;
}
private MarshallingInformation GetMarshallingInformation(int parentCodedIndex)
{
FieldMarshalRow[] mtypes = this.tables.FieldMarshalTable;
bool sorted = (this.sortedTablesMask >> (int)TableIndices.FieldMarshal) % 2 == 1;
int i = 0, n = mtypes.Length, j = n - 1;
if (n == 0) return null;
if (sorted)
{
while (i < j)
{
int k = (i + j) / 2;
if (mtypes[k].Parent < parentCodedIndex)
i = k + 1;
else
j = k;
}
while (i > 0 && mtypes[i - 1].Parent == parentCodedIndex) i--;
}
else
for (; i < j; i++)
if (mtypes[i].Parent == parentCodedIndex) break;
FieldMarshalRow fmr = mtypes[i];
if (fmr.Parent != parentCodedIndex) return null;
MarshallingInformation result = new MarshallingInformation();
int blobSize = 0;
MemoryCursor c = this.tables.GetBlobCursor(fmr.NativeType, out blobSize);
int initialPosition = c.Position;
result.NativeType = (NativeType)c.ReadByte();
if (result.NativeType == NativeType.CustomMarshaler)
{
c.ReadUInt16(); //Skip over 0
result.Class = ReadSerString(c);
result.Cookie = ReadSerString(c);
}
else if (blobSize > 1)
{
if (result.NativeType == NativeType.LPArray)
{
result.ElementType = (NativeType)c.ReadByte();
result.ParamIndex = -1;
int bytesRead = 2;
if (bytesRead < blobSize)
{
int pos = c.Position;
result.ParamIndex = c.ReadCompressedInt();
bytesRead += c.Position - pos;
if (bytesRead < blobSize)
{
pos = c.Position;
result.ElementSize = c.ReadCompressedInt();
bytesRead += c.Position - pos;
if (bytesRead < blobSize)
result.NumberOfElements = c.ReadCompressedInt();
}
}
}
else if (result.NativeType == NativeType.SafeArray)
{
result.ElementType = (NativeType)c.ReadByte(); //Actually a variant type. TODO: what about VT_VECTOR VT_ARRAY and VT_BYREF?
if (c.Position < initialPosition + blobSize - 1)
result.Class = ReadSerString(c);
}
else
{
result.Size = c.ReadCompressedInt();
if (result.NativeType == NativeType.ByValArray)
{
if (blobSize > 2)
result.ElementType = (NativeType)c.ReadByte();
else
result.ElementType = NativeType.NotSpecified;
}
}
}
return result;
}