public static void SaveTo([NotNull] this AssetInfoList list, [NotNull] Stream stream)
{
var dict = new Dictionary <string, object[]>();
foreach (var assetInfo in list.Assets)
{
var key = assetInfo.ResourceName;
var arr = new object[3];
arr[0] = assetInfo.ContentHash;
arr[1] = assetInfo.RemoteName;
if (assetInfo.Size > ushort.MaxValue)
{
arr[2] = assetInfo.Size;
}
else
{
arr[2] = (ushort)assetInfo.Size;
}
dict.Add(key, arr);
}
var databaseObject = new object[] {
dict
};
MessagePackSerializer.Serialize(stream, databaseObject);
}
public static AssetInfoList Parse([NotNull] byte[] data, [NotNull] Encoding encoding)
{
var assetInfoEntries = new List <AssetInfo>();
byte[] headerBytes;
int entryCount;
using (var stream = new MemoryStream(data, false)) {
var streamLength = stream.Length;
using (var bigEndianReader = new EndianBinaryReader(stream, Endian.BigEndian)) {
// Assumption: "91 de" is the file header, followed by entry (entrycount+1)
headerBytes = stream.ReadBytes(4);
// Now read again.
stream.Position = 0;
var fileHeader = bigEndianReader.ReadUInt16();
if (fileHeader != FileHeaderInt)
{
throw new FormatException($"File header is 0x{fileHeader:x4}, expected 0x91de.");
}
entryCount = bigEndianReader.ReadUInt16();
while (stream.Position < streamLength - 1)
{
var resourceName = ReadString(stream, encoding);
var resourceNameEndingByte = (byte)stream.ReadByte();
if (resourceNameEndingByte != 0x93)
{
throw new FormatException($"Expected name ending byte = 0x93, actual = 0x{resourceNameEndingByte:x2}.");
}
var resourceHash = ReadString(stream, encoding);
var remoteName = ReadString(stream, encoding);
var resourceSize = ReadVarSize(bigEndianReader);
var assetInfo = new AssetInfo(resourceName, resourceHash, remoteName, resourceSize, resourceNameEndingByte);
assetInfoEntries.Add(assetInfo);
}
}
}
if (entryCount != assetInfoEntries.Count)
{
Debug.WriteLine($"Warning: recorded entry count {entryCount} does not equal to real entry count {assetInfoEntries.Count}!");
}
var assetInfoList = new AssetInfoList(assetInfoEntries, headerBytes);
return(assetInfoList);
}
public static bool TryParse([NotNull] byte[] data, [CanBeNull] out AssetInfoList result)
{
try {
result = Parse(data);
return(true);
} catch (Exception) {
result = null;
return(false);
}
}
public static byte[] ToBytes([NotNull] this AssetInfoList list)
{
byte[] result;
using (var stream = new MemoryStream()) {
list.SaveTo(stream);
result = stream.ToArray();
}
return(result);
}
