internal static EDIDDescriptor FromData(EDID edid, BitAwareReader reader, int offset)
{
var types =
Assembly.GetAssembly(typeof(EDIDDescriptor))
.GetTypes()
.Where(t => t.IsSubclassOf(typeof(EDIDDescriptor)));
foreach (var type in types)
{
try
{
var value = Activator.CreateInstance(type, BindingFlags.NonPublic | BindingFlags.Instance, null,
new object[] { edid, reader, offset }, null) as EDIDDescriptor;
if (value?.IsValid == true)
{
return(value);
}
}
catch
{
// ignored
}
}
return(null);
}
internal EDIDExtension(EDID edid, BitAwareReader reader, int offset)
{
EDID = edid;
Reader = reader;
Offset = offset;
if (reader.Data.Length - offset < 128)
{
throw new InvalidExtensionException("Extension data must be exactly 128 bytes.");
}
if (reader.Data.Skip(offset).Take(128).Aggregate(0, (i, b) => (i + b) % 256) > 0)
{
throw new InvalidExtensionException("Extension checksum failed.");
}
}
internal DisplayParameters(EDID edid, BitAwareReader reader)
{
_edid = edid;
_reader = reader;
}
internal EDIDDescriptor(EDID edid, BitAwareReader reader, int offset)
{
EDID = edid;
Reader = reader;
Offset = offset;
}