private byte[] PackedChunk(ResourceIndexEntry ie)
{
byte[] chunk;
if (ie.IsDirty)
{
Stream res = GetResource(ie);
BinaryReader r = new BinaryReader(res);
res.Position = 0;
chunk = r.ReadBytes((int)ie.Memsize);
if (Checking)
{
if (chunk.Length != (int)ie.Memsize)
{
throw new OverflowException(
$"packedChunk, dirty resource - T: 0x{ie.ResourceType:X}, G: 0x{ie.ResourceGroup:X}, I: 0x{ie.Instance:X}: Length expected: 0x{ie.Memsize:X}, read: 0x{chunk.Length:X}");
}
}
byte[] comp = ie.Compressed != 0 ? Compression.CompressStream(chunk) : chunk;
if (comp.Length < chunk.Length)
{
chunk = comp;
}
}
else
{
if (Checking)
{
if (_packageStream == null)
{
throw new InvalidOperationException(
$"Clean resource with undefined \"current package\" - T: 0x{ie.ResourceType:X}, G: 0x{ie.ResourceGroup:X}, I: 0x{ie.Instance:X}");
}
}
_packageStream.Position = ie.Chunkoffset;
chunk = (new BinaryReader(_packageStream)).ReadBytes((int)ie.Filesize);
if (Checking)
{
if (chunk.Length != (int)ie.Filesize)
{
throw new OverflowException(
$"packedChunk, clean resource - T: 0x{ie.ResourceType:X}, G: 0x{ie.ResourceGroup:X}, I: 0x{ie.Instance:X}: Length expected: 0x{ie.Filesize:X}, read: 0x{chunk.Length:X}");
}
}
}
return(chunk);
}
public IResourceIndexEntry Add(IResourceKey rk)
{
ResourceIndexEntry rc = new ResourceIndexEntry(new int[Hdrsize], new int[NumFields - Hdrsize])
{
ResourceType = rk.ResourceType,
ResourceGroup = rk.ResourceGroup,
Instance = rk.Instance,
Chunkoffset = 0xffffffff,
Unknown2 = 1,
ResourceStream = null
};
base.Add(rc);
return(rc);
}
/// <summary>
/// Return the index entry with the matching TGI
/// </summary>
/// <param name="type">Entry type</param>
/// <param name="group">Entry group</param>
/// <param name="instance">Entry instance</param>
/// <returns>Matching entry</returns>
public IResourceIndexEntry this[uint type, uint group, ulong instance]
{
get
{
for (int index = 0; index < Count; index++)
{
ResourceIndexEntry rie = (ResourceIndexEntry)this[index];
if (rie.ResourceType != type)
{
continue;
}
if (rie.ResourceGroup != @group)
{
continue;
}
if (rie.Instance == instance)
{
return(rie);
}
}
return(null);
}
}
/// <summary>
/// Save the package to a given stream
/// </summary>
/// <param name="s">Stream to save to</param>
public override void SaveAs(Stream s)
{
BinaryWriter w = new BinaryWriter(s);
w.Write(_header);
List <uint> lT = new List <uint>();
List <uint> lG = new List <uint>();
List <uint> lIh = new List <uint>();
for (int i = 0; i < Index.Count; i++)
{
IResourceIndexEntry x = Index[i];
if (!lT.Contains(x.ResourceType))
{
lT.Add(x.ResourceType);
}
if (!lG.Contains(x.ResourceGroup))
{
lG.Add(x.ResourceGroup);
}
if (!lIh.Contains((uint)(x.Instance >> 32)))
{
lIh.Add((uint)(x.Instance >> 32));
}
}
uint indexType = (uint)(lIh.Count <= 1 ? 0x04 : 0x00) | (uint)(lG.Count <= 1 ? 0x02 : 0x00) | (uint)(lT.Count <= 1 ? 0x01 : 0x00);
PackageIndex newIndex = new PackageIndex(indexType);
for (int i = 0; i < Index.Count; i++)
{
IResourceIndexEntry ie = Index[i];
if (ie.IsDeleted)
{
continue;
}
ResourceIndexEntry newIe = (ie as ResourceIndexEntry)?.Clone();
((List <IResourceIndexEntry>)newIndex).Add(newIe);
byte[] value = PackedChunk(ie as ResourceIndexEntry);
newIe.Chunkoffset = (uint)s.Position;
w.Write(value);
w.Flush();
if (value.Length < newIe.Memsize)
{
newIe.Compressed = 0xffff;
newIe.Filesize = (uint)value.Length;
}
else
{
newIe.Compressed = 0x0000;
newIe.Filesize = newIe.Memsize;
}
}
long indexpos = s.Position;
newIndex.Save(w);
SetIndexcount(w, newIndex.Count);
SetIndexsize(w, newIndex.Size);
SetIndexposition(w, (int)indexpos);
s.Flush();
}