static void BT(IntPtr reserved, IntPtr info)
{
// sadly the parameters are always identical and we can't know the operator name
// IOW we can NOT dispatch (internally) to a nice C# looking method
// We do NOT want people to use the "obvious" new CGPDFScanner(reserved) because that will
// call retain (and this gets called a lot of time)
// So _a_ solution is to provide an helper method to give them what they want
var scanner = CGPDFOperatorTable.GetScannerFromInfo(info);
(scanner.UserInfo as PDFScannerTest).bt_count++;
}
static void Do(IntPtr reserved, IntPtr info)
{
// sadly the parameters are always identical and we can't know the operator name
// IOW we can NOT dispatch (internally) to a nice C# looking method
// We do NOT want people to use the "obvious" new CGPDFScanner(reserved) because that will
// call retain (and this gets called a lot of time)
// So _a_ solution is to provide an helper method to give them what they want
var scanner = CGPDFOperatorTable.GetScannerFromInfo(info);
string name;
if (!scanner.TryPopName(out name))
{
return;
}
var test = (scanner.UserInfo as PDFScannerTest);
test.do_checks--;
var cs = scanner.GetContentStream();
if (cs == null)
{
return;
}
test.do_checks--;
var ro = cs.GetResource("XObject", name);
if (ro.Type != CGPDFObjectType.Stream)
{
return;
}
test.do_checks--;
CGPDFStream s;
if (!ro.TryGetValue(out s))
{
return;
}
test.do_checks--;
var dict = s.Dictionary;
if (dict == null)
{
return;
}
test.do_checks--;
string dictname;
if (!dict.GetName("Subtype", out dictname))
{
return;
}
test.do_checks--;
if (dictname != "Image")
{
return;
}
test.do_checks--;
}