public int Read(byte[] buffer, int offset)
{
FileInfo = Utilities.BytesToString(buffer, offset + 0, 64).TrimEnd(new char[] { '\0' });
Signature = Utilities.ToUInt32LittleEndian(buffer, offset + 64);
Version = new FileVersion(Utilities.ToUInt32LittleEndian(buffer, offset + 68));
return Size;
}
public void Read(FileVersion version, Stream s)
{
int headerSize;
_fileVersion = version;
// Determine header size...
if (version.Major == 0)
{
headerSize = 348;
}
else
{
long savedPos = s.Position;
headerSize = Utilities.ToInt32LittleEndian(Utilities.ReadFully(s, 4), 0);
s.Position = savedPos;
}
byte[] buffer = Utilities.ReadFully(s, headerSize);
Read(version, buffer, 0);
}
public int Read(FileVersion version, byte[] buffer, int offset)
{
if (version.Major == 0)
{
ImageType = (ImageType)Utilities.ToUInt32LittleEndian(buffer, offset + 0);
Flags = (ImageFlags)Utilities.ToUInt32LittleEndian(buffer, offset + 4);
Comment = Utilities.BytesToString(buffer, offset + 8, 256).TrimEnd(new char[] { '\0' });
LegacyGeometry = new GeometryRecord();
LegacyGeometry.Read(buffer, offset + 264);
DiskSize = Utilities.ToInt64LittleEndian(buffer, offset + 280);
BlockSize = Utilities.ToInt32LittleEndian(buffer, offset + 288);
BlockCount = Utilities.ToInt32LittleEndian(buffer, offset + 292);
BlocksAllocated = Utilities.ToInt32LittleEndian(buffer, offset + 296);
UniqueId = Utilities.ToGuidLittleEndian(buffer, offset + 300);
ModificationId = Utilities.ToGuidLittleEndian(buffer, offset + 316);
ParentId = Utilities.ToGuidLittleEndian(buffer, offset + 332);
HeaderSize = 348;
BlocksOffset = HeaderSize + PreHeaderRecord.Size;
DataOffset = (uint)(BlocksOffset + (BlockCount * 4));
BlockExtraSize = 0;
ParentModificationId = Guid.Empty;
}
else if (version.Major == 1 && version.Minor == 1)
{
HeaderSize = Utilities.ToUInt32LittleEndian(buffer, offset + 0);
ImageType = (ImageType)Utilities.ToUInt32LittleEndian(buffer, offset + 4);
Flags = (ImageFlags)Utilities.ToUInt32LittleEndian(buffer, offset + 8);
Comment = Utilities.BytesToString(buffer, offset + 12, 256).TrimEnd(new char[] { '\0' });
BlocksOffset = Utilities.ToUInt32LittleEndian(buffer, offset + 268);
DataOffset = Utilities.ToUInt32LittleEndian(buffer, offset + 272);
LegacyGeometry = new GeometryRecord();
LegacyGeometry.Read(buffer, offset + 276);
DiskSize = Utilities.ToInt64LittleEndian(buffer, offset + 296);
BlockSize = Utilities.ToInt32LittleEndian(buffer, offset + 304);
BlockExtraSize = Utilities.ToInt32LittleEndian(buffer, offset + 308);
BlockCount = Utilities.ToInt32LittleEndian(buffer, offset + 312);
BlocksAllocated = Utilities.ToInt32LittleEndian(buffer, offset + 316);
UniqueId = Utilities.ToGuidLittleEndian(buffer, offset + 320);
ModificationId = Utilities.ToGuidLittleEndian(buffer, offset + 336);
ParentId = Utilities.ToGuidLittleEndian(buffer, offset + 352);
ParentModificationId = Utilities.ToGuidLittleEndian(buffer, offset + 368);
if (HeaderSize > 384)
{
LChsGeometry = new GeometryRecord();
LChsGeometry.Read(buffer, offset + 384);
}
}
else
{
throw new IOException("Unrecognized file version: " + version);
}
return (int)HeaderSize;
}
