private void Dispose(bool disposing)
{
if (isDisposed)
{
return;
}
if (disposing)
{
trackStream.Flush();
trackStream = null;
}
isDisposed = true;
}
/// <summary>
/// Initialize (format) a track by writing headers and sectors to it.
/// </summary>
/// <param name="diskStream">Stream for writing the disk track.</param>
/// <param name="trackOffset">Byte offset of the track data in the disk image.</param>
/// <param name="headId">Side of disk for initializing the track.</param>
/// <param name="sectors">Collection of sectors to be written to the track.</param>
/// <returns>The track length in the disk image stream.</returns>
static internal int InitializeTrack(Stream diskStream, int trackOffset, int headId, IEnumerable <HfeSector> sectors)
{
var rawStream = new HfeRawTrack(diskStream, trackOffset, headId);
var trackStream = new MfmStream(rawStream);
trackStream.WriteBytes(0x4e, PreableLength);
foreach (var sector in sectors)
{
// Write gap preceeding sector ID record
trackStream.WriteBytes(0x4e, 24);
trackStream.WriteBytes(0x00, 12);
trackStream.WriteSync();
trackStream.WriteSync();
trackStream.WriteSync();
// Write sector ID record
var sectorInfo = sector.GetSectorInfo();
var encodedIdRecord = sectorInfo.Encode();
trackStream.Write(encodedIdRecord, 0, encodedIdRecord.Length);
// Write gap preceeding sector data record
trackStream.WriteBytes(0x4e, 22);
trackStream.WriteBytes(0x00, 12);
trackStream.WriteSync();
trackStream.WriteSync();
trackStream.WriteSync();
// Write sector data record
var encodedDataRecord = sector.Encode();
trackStream.Write(encodedDataRecord, 0, encodedDataRecord.Length);
}
trackStream.WriteBytes(0x4e, PostambleLength);
trackStream.Flush();
return(rawStream.TrackLength - trackOffset);
}