private static void ProcessChunks(ChunkReader chunkReader, Stream stream, long readLength,
IReadOnlyDictionary <uint, ObjectActivator <IResourceReader> > activators,
ICollection <IResource> resources,
IResourceReader resourceReader = null)
{
var endPosition = stream.Position + readLength;
while (stream.Position < endPosition)
{
var chunk = chunkReader.NextChunk();
// Make sure we're dealing with a data chunk (ID 0 = padding)
if (chunk.Id != 0)
{
// resourceReader will be null if we're at the top level
if (resourceReader == null)
{
// Create resource reader and recurse
var activatorExists = activators.TryGetValue(chunk.Id, out var activator);
var newReader = activatorExists
? activator()
: new GenericResourceReader();
if (activatorExists && chunk.IsContainer)
{
ProcessChunks(chunkReader, stream, chunk.Size, activators, resources, newReader);
}
else
{
newReader.ProcessChunk(chunk, chunkReader.BinaryReader);
}
var resource = newReader.GetResource();
Debug.Assert(resource != null, "resource != null");
resources.Add(resource);
}
else
{
if (chunk.IsContainer)
{
ProcessChunks(chunkReader, stream, chunk.Size, activators, resources, resourceReader);
}
else
{
resourceReader.ProcessChunk(chunk, chunkReader.BinaryReader);
}
}
}
stream.Position = chunk.EndOffset;
}
}