public void Save(BinaryWriter bw)
{
var utility = new Utility(null, bw);
var saveContext = new SaveContext(utility);
CGFXDebug.SaveStart(this, saveContext);
// Magic
utility.WriteMagic("CGFX");
// Endianness
utility.WriteEndiannessByteMarker();
// Header size
utility.Write((ushort)0x14); // FIXME constant
// Revision
utility.Write(revision);
// File Size
// For now, we'll just write zeroes for the file size and patch it back in afterwards
var fileSizeLoc = bw.BaseStream.Position;
utility.Write((uint)0);
// Number of entries
utility.Write((uint)Chunks.Count);
foreach (var chunk in Chunks)
{
chunk.Save(saveContext);
}
// OKAY, now we can patch in that filesize!
var fileSize = bw.BaseStream.Position;
bw.BaseStream.Seek(fileSizeLoc, SeekOrigin.Begin);
utility.Write((uint)fileSize);
}
public static CGFX Load(BinaryReader br)
{
var utility = new Utility(br, null);
var cgfx = new CGFX();
CGFXDebug.LoadStart(cgfx, utility);
var magic = utility.ReadMagic();
if (magic != Utility.MakeMagic("CGFX"))
{
throw new InvalidOperationException("Wrong magic");
}
utility.ReadEndiannessByteMarker();
// Size of header
var headerSize = br.ReadUInt16();
// Revision of file
cgfx.revision = br.ReadUInt32();
// Size of file
var fileSize = br.ReadUInt32();
var actualFileSize = (uint)br.BaseStream.Length;
if (actualFileSize != fileSize)
{
throw new InvalidOperationException($"CGFX file header says file should be {fileSize} bytes, but it's actually {actualFileSize} bytes!");
}
// Number of entries (typically [?] 2, being DATA and IMAG)
var entries = br.ReadUInt32();
// Ensure at end of header
br.BaseStream.Seek(headerSize, SeekOrigin.Begin);
// ------------------------------
while (br.BaseStream.Position != br.BaseStream.Length)
{
// At this level, we're expecting either a DATA or IMAG chunk only.
// Everything will go into the Chunks bucket regardless...
var chunkMagic = utility.PeekMagic();
if (chunkMagic == Utility.MakeMagic("DATA"))
{
cgfx.Chunks.Add(Chunk.Load <ChunkDATA>(utility));
}
else if (chunkMagic == Utility.MakeMagic("IMAG"))
{
cgfx.Chunks.Add(Chunk.Load <ChunkIMAG>(utility));
}
else
{
// Unknown chunk type, just read raw...
cgfx.Chunks.Add(Chunk.Load(utility));
}
}
return(cgfx);
}