/// <summary>
/// Saves the EncodingFile to disk and optionally updates the BuildConfig
/// </summary>
/// <param name="directory">Root Directory</param>
/// <param name="configContainer"></param>
/// <returns></returns>
public CASRecord Write(string directory, Configs.ConfigContainer configContainer = null)
{
if (Partial)
{
throw new NotSupportedException("Writing is not supported for partial EncodingFiles");
}
EBlock[] eblocks = new EBlock[_EncodingMap.Length];
CASRecord record;
using (var bt = new BlockTableStreamWriter(_EncodingMap[1], 1))
using (var bw = new BinaryWriter(bt))
{
// ESpecStringTable 1
bt.Write(string.Join('\0', ESpecStringTable).GetBytes());
EncodingHeader.ESpecTableSize = (uint)bt.Length;
// CKeysPageIndices 2, CKeysPageTable 3
WritePage(bw, eblocks, 2, EncodingHeader.CKeyPageSize << 10, _CKeyEntries);
// EKeysPageIndices 4, EKeysPageTable 5
WritePage(bw, eblocks, 4, EncodingHeader.EKeyPageSize << 10, _EKeyEntries);
// Header 0
bt.AddBlock(_EncodingMap[0], 0);
EncodingHeader.Write(bw);
// File ESpec 6
bt.AddBlock(_EncodingMap[6], 6);
bt.Write(GetFileESpec(bt.SubStreams).GetBytes());
// finalise
record = bt.Finalise();
// save
string saveLocation = Helpers.GetCDNPath(record.EKey.ToString(), "data", directory, true);
using (var fs = File.Create(saveLocation))
{
bt.WriteTo(fs);
record.BLTEPath = saveLocation;
}
}
// update the build config with the new values
if (configContainer?.BuildConfig != null)
{
configContainer.BuildConfig.SetValue("encoding-size", record.EBlock.DecompressedSize, 0);
configContainer.BuildConfig.SetValue("encoding-size", record.EBlock.CompressedSize, 1);
configContainer.BuildConfig.SetValue("encoding", record.CKey, 0);
configContainer.BuildConfig.SetValue("encoding", record.EKey, 1);
}
Checksum = record.CKey;
return(record);
}
private void WriteFileEntries(BlockTableStreamWriter bt)
{
var size = _FileEntries.Count * (DownloadSizeHeader.EKeySize + 4);
using var ms = new MemoryStream(size);
using var bw = new BinaryWriter(ms);
// ordered by descending size
var fileEntries = _FileEntries.Values.OrderByDescending(x => x.CompressedSize);
foreach (var fileEntry in fileEntries)
{
fileEntry.Write(bw, DownloadSizeHeader);
}
// batched into 0xFFFF size uncompressed blocks
// this is for client performance and isn't mandatory
ms.Position = 0;
byte[] buffer = ArrayPool <byte> .Shared.Rent(0xFFFF);
int read;
while ((read = ms.Read(buffer)) != 0)
{
bt.AddBlock(_EncodingMap[2]);
bt.Write(buffer, 0, read);
}
ArrayPool <byte> .Shared.Return(buffer);
}
private void WriteFileEntries(BlockTableStreamWriter bt)
{
using var ms = new MemoryStream();
using var bw = new BinaryWriter(ms);
// ordered by descending size
foreach (var fileEntry in _FileEntries.Values.OrderByDescending(x => x.CompressedSize))
{
fileEntry.Write(bw, DownloadSizeHeader);
}
// batched into 0xFFFF size uncompressed blocks
// this is for client performance and isn't mandatory
ms.Position = 0;
byte[] buffer = new byte[0xFFFF];
int read;
while ((read = ms.Read(buffer)) != 0)
{
bt.AddBlock(_EncodingMap[2]);
bt.Write(buffer, 0, read);
}
}