protected List <OverlayBase> ReadImageResource(FileStream stream)
{
List <OverlayBase> guides = new List <OverlayBase>();
BinaryReader binaryReader = new BinaryReader(stream);
try
{
int length = 0;
byte[] bytes = binaryReader.ReadBytes(4);
if (this.SwapBytes(bytes, 4))
{
length = BitConverter.ToInt32(bytes, 0);
}
long streamLength = stream.Length;
int bytesTotal = length;
int bytesRed = 0;
while (stream.Position < streamLength && bytesRed < bytesTotal)
{
byte[] osType = binaryReader.ReadBytes(4);
bytesRed += 4;
if (Encoding.ASCII.GetString(osType).Equals("8BIM"))
{
int imageResourceId = -1;
bytes = binaryReader.ReadBytes(2);
bytesRed += 2;
if (this.SwapBytes(bytes, 2))
{
imageResourceId = BitConverter.ToInt16(bytes, 0);
}
byte @byte = binaryReader.ReadByte();
bytesRed += 1;
int nameSize = (int)@byte;
if (nameSize > 0)
{
if (nameSize % 2 != 0)
{
@byte = binaryReader.ReadByte();
bytesRed += 1;
}
bytesRed += nameSize;
}
binaryReader.ReadByte();
bytesRed += 1;
int size = 0;
bytes = binaryReader.ReadBytes(4);
if (this.SwapBytes(bytes, 4))
{
size = BitConverter.ToInt32(bytes, 0);
}
bytesRed += 4;
if ((size % 2) != 0)
{
size++;
}
if (size > 0)
{
if (imageResourceId == 1032)
{
binaryReader.ReadBytes(4);
bytesRed += 4;
binaryReader.ReadBytes(8);
bytesRed += 8;
int count = 0;
bytes = binaryReader.ReadBytes(4);
if (this.SwapBytes(bytes, 4))
{
count = BitConverter.ToInt32(bytes, 0);
}
bytesRed += 4;
if (count > 0)
{
for (int i = 0; i != count; i++)
{
int position = -1;
bytes = binaryReader.ReadBytes(4);
if (this.SwapBytes(bytes, 4))
{
position = BitConverter.ToInt32(bytes, 0);
}
bytesRed += 4;
byte direction = binaryReader.ReadByte();
bytesRed += 1;
Guide guide = new Guide();
guide.Position = position / 32;
guide.Orienation = direction == 0 ? Orienation.Vertical : Orienation.Horizontal;
guides.Add(guide);
}
}
}
else
{
for (int n = 0; n < size; ++n)
{
byte c = binaryReader.ReadByte();
bytesRed += 1;
}
}
}
}
}
return(guides);
}
catch (Exception ex)
{
return(null);
}
}