public void Read(Stream stream)
{
ByChunkId = new Dictionary <Type, Dictionary <ushort, object> >();
ByChunkType = new Dictionary <Type,List <object> >();
using (var io = IoBuffer.FromStream(stream,ByteOrder.BIG_ENDIAN))
{
var identifier = io.ReadChars(60,false).Replace("\0","");
if (identifier != "IFF FILE 2.5:TYPE FOLLOWED BY SIZE JAMIE DOORNBOS & MAXIS 1")
{
throw new Exception("Invalid iff file!");
}
var rsmpOffset = io.ReadUInt32();
while (io.HasMore)
{
var chunkType = io.ReadChars(4);
var chunkSize = io.ReadUInt32();
var chunkID = io.ReadUInt16();
var chunkFlags = io.ReadUInt16();
var chunkLabel = io.ReadChars(64);
var chunkDataSize = chunkSize - 76;
/** Do we understand this chunk type? **/
if (!CHUNK_TYPES.ContainsKey(chunkType))
{
/** Skip it! **/
io.Skip(chunkDataSize);
}
else
{
Type chunkClass = CHUNK_TYPES[chunkType];
AbstractIffChunk newChunk = (AbstractIffChunk)Activator.CreateInstance(chunkClass);
newChunk.ChunkID = chunkID;
newChunk.ChunkFlags = chunkFlags;
newChunk.ChunkLabel = chunkLabel;
newChunk.ChunkData = io.ReadBytes(chunkDataSize);
newChunk.ChunkParent = this;
if (!ByChunkType.ContainsKey(chunkClass))
{
ByChunkType.Add(chunkClass,new List <object>());
}
if (!ByChunkId.ContainsKey(chunkClass))
{
ByChunkId.Add(chunkClass,new Dictionary <ushort,object>());
}
ByChunkType[chunkClass].Add(newChunk);
//if (chunkID != 0){
ByChunkId[chunkClass].Add(chunkID,newChunk);
//}
}
}
}
}
private T prepare <T>(object input)
{
AbstractIffChunk chunk = (AbstractIffChunk)input;
lock (chunk)
{
if (chunk.ChunkProcessed != true)
{
using (var stream = new MemoryStream(chunk.ChunkData))
{
chunk.Read(this,stream);
chunk.ChunkProcessed = true;
}
return((T)input);
}
return((T)input);
}
}
