public AfterBurnerMapEntry(ShockwaveReader input)
{
int id = input.Read7BitEncodedInt();
Offset = input.Read7BitEncodedInt();
CompressedLength = input.Read7BitEncodedInt();
DecompressedLength = input.Read7BitEncodedInt();
CompressionType = (EntryCompressionType)input.Read7BitEncodedInt();
Header = new ChunkHeader(input.ReadReversedString(4))
{
Id = id,
Length = DecompressedLength
};
}
private void ReadInitialLoadSegment(ref ShockwaveReader input, AfterBurnerMapEntry[] entries, Dictionary <int, ChunkItem> chunks)
{
//First entry in the AfterBurnerMap must be ILS.
AfterBurnerMapEntry ilsEntry = entries[0];
input.Advance(ilsEntry.Offset);
//TODO: this shouldn't be here
ReadOnlySpan <byte> compressedData = input.ReadBytes(ilsEntry.Length);
Span <byte> decompressedData = ilsEntry.DecompressedLength <= 1024 ?
stackalloc byte[ilsEntry.DecompressedLength] : new byte[ilsEntry.DecompressedLength];
ZLib.Decompress(compressedData, decompressedData);
ShockwaveReader ilsReader = new ShockwaveReader(decompressedData, input.IsBigEndian);
while (ilsReader.IsDataAvailable)
{
int id = ilsReader.Read7BitEncodedInt();
AfterBurnerMapEntry entry = entries.FirstOrDefault(e => e.Id == id); //TODO: Chunk entries as dictionary
if (entry == null)
{
break;
}
chunks.Add(id, Read(ref ilsReader, entry.Header));
}
}
public ChunkHeader(ShockwaveReader input)
: this(input.ReadReversedString(4))
{
Length = (IsVariableLength ?
input.Read7BitEncodedInt() : input.ReadInt32());
Offset = input.Position;
}
public AfterburnerMapChunk(ref ShockwaveReader input, ChunkHeader header)
: base(header)
{
input.ReadByte();
Remnants.Enqueue(input.Read7BitEncodedInt());
using var deflaterInput = CreateDeflateReader(ref input);
Remnants.Enqueue(deflaterInput.Read7BitEncodedInt());
Remnants.Enqueue(deflaterInput.Read7BitEncodedInt());
Entries = new AfterBurnerMapEntry[deflaterInput.Read7BitEncodedInt()];
for (int i = 0; i < Entries.Length; i++)
{
Entries[i] = new AfterBurnerMapEntry(deflaterInput);
}
}
public AfterburnerMapChunk(ShockwaveReader input, ChunkHeader header)
: base(header)
{
input.ReadByte();
Remnants.Enqueue(input.Read7BitEncodedInt());
var decompressedInput = WrapDecompressor(input);
Remnants.Enqueue(decompressedInput.Read7BitEncodedInt());
Remnants.Enqueue(decompressedInput.Read7BitEncodedInt());
Entries = new List <AfterBurnerMapEntry>(decompressedInput.Read7BitEncodedInt());
for (int i = 0; i < Entries.Capacity; i++)
{
Entries.Add(new AfterBurnerMapEntry(decompressedInput));
}
}
public void ReadChunks(List <AfterBurnerMapEntry> entries, Action <ChunkItem> callback)
{
int ilsChunkCount = entries.Count(e => e.Offset == -1);
for (int i = 0; i < ilsChunkCount; i++)
{
if (_input.Position >= Header.Length)
{
break;
}
int id = _input.Read7BitEncodedInt();
AfterBurnerMapEntry entry = entries.FirstOrDefault(e => e.Header.Id == id);
if (entry == null)
{
break; //TODO:
}
entry.Header.Offset = _input.Position;
callback?.Invoke(Read(_input, entry.Header));
}
}
public ChunkHeader(ref ShockwaveReader input)
: this((ChunkKind)input.ReadBEInt32())
{
Length = IsVariableLength ?
input.Read7BitEncodedInt() : input.ReadBEInt32();
}