/// <summary>
/// Opens the region file from a stream.
/// </summary>
/// <param name="stream">The stream the region file will read from.</param>
/// <returns>The parsed region file.</returns>
public static RegionFile OpenRegion(Stream stream)
{
#if DEBUG
DateTime wStart;
#endif
RegionFile region = new RegionFile();
using (BinaryReader reader = new BinaryReader(stream))
{
int[] sectors = new int[1024];
int[] tstamps = new int[1024];
for (int i = 0; i < 1024; i++)
{
sectors[i] = reader.ReadInt32();
}
for (int i = 0; i < 1024; i++)
{
tstamps[i] = reader.ReadInt32();
}
Thread offsetThread = new Thread(new ThreadStart(() =>
{
int sector = 0;
lock (sectors)
for (int i = 0; i < 1024; i++)
{
sector = EndiannessConverter.ToInt32(sectors[i]);
region.offsets[i] = new McrOffset()
{
SectorSize = (byte)(sector & 0xFF),
SectorOffset = sector >> 8,
};
}
sectors = null;
}));
offsetThread.Name = "offset calculator thread";
offsetThread.Start();
offsetThread.Join();
Thread tstampThread = new Thread(() =>
{
int tstamp = 0;
lock (tstamps)
for (int i = 0; i < 1024; i++)
{
tstamp = EndiannessConverter.ToInt32(tstamps[i]);
region.tstamps[i] = new McrtStamp
{
Timestamp = tstamp,
};
}
tstamps = null;
})
{
Name = "timestamp calculator thread"
};
tstampThread.Start();
tstampThread.Join();
#if DEBUG
wStart = DateTime.Now;
#endif
byte[][] chunkBuffer = new byte[1024][];
{
int length;
McrOffset offset;
for (int i = 0; i < 1024; i++)
{
offset = region.offsets[i];
if (offset.SectorOffset != 0)
{
stream.Seek(offset.SectorOffset * 4096, SeekOrigin.Begin);
length = EndiannessConverter.ToInt32(reader.ReadInt32());
reader.ReadByte();
chunkBuffer[i] = reader.ReadBytes(length - 1);
}
}
}
int chunkSlice = 1024 / MaxTHREADS;
Thread[] workerThreads = new Thread[MaxTHREADS];
{
for (int i = 0; i < MaxTHREADS; i++)
{
byte[][] chunkWorkerBuffer = new byte[chunkSlice][];
Array.Copy(chunkBuffer, i * chunkSlice, chunkWorkerBuffer, 0, chunkSlice);
int index = i;
workerThreads[i] = new Thread(new ThreadStart(() =>
{
#if DEBUG
DateTime start = DateTime.Now;
#endif
int offset = index * (1024 / MaxTHREADS);
MemoryStream mmStream = null;
for (int n = 0; n < chunkWorkerBuffer.Length; n++)
{
byte[] chunk = chunkWorkerBuffer[n];
if (chunk == null)
{
continue;
}
mmStream = new MemoryStream(chunk);
region.chunks[n + offset] = NBTFile.OpenFile(mmStream, 2);
mmStream.Dispose();
}
chunkWorkerBuffer = null;
#if DEBUG
Console.WriteLine("Thread worker " + (index + 1) + " is complete! Took " + (int)(DateTime.Now - start).TotalMilliseconds + "ms to process.");
}));
workerThreads[i].Name = "chunk worker thread " + (index + 1);
#else
}));
/// <summary>
/// Opens the region file from a stream.
/// </summary>
/// <param name="stream">The stream the region file will read from.</param>
/// <returns>The parsed region file.</returns>
public static RegionFile OpenRegion(Stream stream)
{
#if DEBUG
DateTime wStart;
#endif
RegionFile region = new RegionFile();
using (BinaryReader reader = new BinaryReader(stream))
{
int[] sectors = new int[1024];
int[] tstamps = new int[1024];
for (int i = 0; i < 1024; i++)
sectors[i] = reader.ReadInt32();
for (int i = 0; i < 1024; i++)
tstamps[i] = reader.ReadInt32();
Thread offsetThread = new Thread(new ThreadStart(() =>
{
int sector = 0;
lock (sectors)
for (int i = 0; i < 1024; i++)
{
sector = EndiannessConverter.ToInt32(sectors[i]);
region.offsets[i] = new McrOffset()
{
SectorSize = (byte)(sector & 0xFF),
SectorOffset = sector >> 8,
};
}
sectors = null;
}));
offsetThread.Name = "offset calculator thread";
offsetThread.Start();
offsetThread.Join();
Thread tstampThread = new Thread(() =>
{
int tstamp = 0;
lock (tstamps)
for (int i = 0; i < 1024; i++)
{
tstamp = EndiannessConverter.ToInt32(tstamps[i]);
region.tstamps[i] = new McrtStamp
{
Timestamp = tstamp,
};
}
tstamps = null;
}) {Name = "timestamp calculator thread"};
tstampThread.Start();
tstampThread.Join();
#if DEBUG
wStart = DateTime.Now;
#endif
byte[][] chunkBuffer = new byte[1024][];
{
int length;
McrOffset offset;
for (int i = 0; i < 1024; i++)
{
offset = region.offsets[i];
if (offset.SectorOffset != 0)
{
stream.Seek(offset.SectorOffset * 4096, SeekOrigin.Begin);
length = EndiannessConverter.ToInt32(reader.ReadInt32());
reader.ReadByte();
chunkBuffer[i] = reader.ReadBytes(length - 1);
}
}
}
int chunkSlice = 1024 / MaxTHREADS;
Thread[] workerThreads = new Thread[MaxTHREADS];
{
for (int i = 0; i < MaxTHREADS; i++)
{
byte[][] chunkWorkerBuffer = new byte[chunkSlice][];
Array.Copy(chunkBuffer, i * chunkSlice, chunkWorkerBuffer, 0, chunkSlice);
int index = i;
workerThreads[i] = new Thread(new ThreadStart(() =>
{
#if DEBUG
DateTime start = DateTime.Now;
#endif
int offset = index * (1024 / MaxTHREADS);
MemoryStream mmStream = null;
for (int n = 0; n < chunkWorkerBuffer.Length; n++)
{
byte[] chunk = chunkWorkerBuffer[n];
if (chunk == null)
continue;
mmStream = new MemoryStream(chunk);
region.chunks[n + offset] = NBTFile.OpenFile(mmStream, 2);
mmStream.Dispose();
}
chunkWorkerBuffer = null;
#if DEBUG
Console.WriteLine("Thread worker " + (index + 1) + " is complete! Took " + (int)(DateTime.Now - start).TotalMilliseconds + "ms to process.");
}));
workerThreads[i].Name = "chunk worker thread " + (index + 1);
#else
}));
#endif
workerThreads[i].Start();
}
for (int i = 0; i < workerThreads.Length; i++)
workerThreads[i].Join();
}
}
