internal CorePDFDirect ReadDirectFromStream(PDFParser p, long offset, int id, int gene)
{
PDFInteger integer1;
PDFInteger integer2;
PDFName name1;
CorePDFDirect direct1;
long num1;
CorePDFDirect direct2;
p.Stream.Position = offset;
try
{
integer1 = ((PDFInteger)p.ReadNextObject());
if ((integer1.Value != ((long)id)) && (id != -1))
{
throw new PDFSyntaxException("XREF points to incorrect object. objId doesn\'t match");
}
integer2 = ((PDFInteger)p.ReadNextObject());
if ((integer2.Value != ((long)gene)) && (gene != -1))
{
throw new PDFSyntaxException("XREF points to incorrect object. Generation number doesn\'t match");
}
name1 = ((PDFName)p.ReadNextObject());
if (name1.Value != "obj")
{
throw new PDFSyntaxException("XREF points to incorrect object. \'obj\' token missing");
}
direct1 = ((CorePDFDirect)p.ReadNextObject());
name1 = ((PDFName)p.ReadNextObject());
if (name1.Value == "stream")
{
p.SkipToEOL();
num1 = p.Stream.Position;
direct1 = new CorePDFStream(this, p.Stream, num1, ((CorePDFDict)direct1));
name1 = ((PDFName)p.ReadNextObject());
if (name1.Value != "endstream")
{
throw new PDFSyntaxException("XREF points to incorrect object. \'endstream\' token missing");
}
name1 = ((PDFName)p.ReadNextObject());
}
if (base.IsEncrypted)
{
this.DecryptObject(direct1, id, gene);
}
if (name1.Value == "endobj")
{
return(direct1);
}
throw new PDFSyntaxException("XREF points to incorrect object. \'endobj\' or \'stream\' token missing");
}
catch (InvalidCastException)
{
throw new PDFSyntaxException("XREF points to incorrect object");
}
return(direct2);
}