/// <summary>
/// Only supports writing to an existing btx0 atm
/// </summary>
/// <param name="file"></param>
public void WriteTo(string file)
{
using (var bw = new BinaryWriter(File.OpenWrite(file)))
{
var header = new GenericFileHeader
{
MagicNumber = MagicNumber,
ByteOrderMarker = 0xFEFF,
Version = 1,
ChunkCount = 1,
HeaderLength = 0x10
};
// skip header section, to be written later
bw.BaseStream.Seek(header.HeaderLength + 4 * header.ChunkCount, SeekOrigin.Begin);
uint[] chunkOffsets = new uint[header.ChunkCount];
// write TEX0
chunkOffsets[0] = (uint)(bw.BaseStream.Position);
Texture.WriteTo(bw);
// return to start to write header
var endOffset = bw.BaseStream.Position;
bw.BaseStream.Position = 0;
header.FileLength = (uint)endOffset;
header.WriteTo(bw);
foreach (var chunkOffset in chunkOffsets)
{
bw.Write(chunkOffset);
}
}
}
public NCLR(BinaryReader br)
{
long initOffset = br.BaseStream.Position;
// first a typical file header
var header = new GenericFileHeader(br);
if (header.MagicNumber != MagicNumber)
{
throw new InvalidDataException($"Unexpected magic number in file header '{header.MagicNumber}' at offset 0x{initOffset:X} (expected: {MagicNumber})");
}
// read
Palettes = new PLTT(br);
br.BaseStream.Position = initOffset + header.FileLength;
}
public NCER(BinaryReader br)
{
long initOffset = br.BaseStream.Position;
// first a typical file header
var header = new GenericFileHeader(br);
if (header.MagicNumber != MagicNumber)
{
throw new InvalidDataException($"Unexpected magic number in file header '{header.MagicNumber}' at offset 0x{initOffset:X} (expected: {MagicNumber})");
}
// read
CellBanks = new CEBK(br);
Labels = new LABL(br, CellBanks.Banks.Count);
Unknown = new UEXT(br);
br.BaseStream.Position = initOffset + header.FileLength;
}
public BTX0(string file)
{
using (var br = new BinaryReader(File.OpenRead(file)))
{
// first a typical file header
var header = new GenericFileHeader(br);
if (header.MagicNumber != MagicNumber)
{
throw new InvalidDataException($"Unexpected magic number in file header '{header.MagicNumber}' (expected: {MagicNumber})");
}
// thing that this format does that other formats don't seem to do.
uint[] chunkOffsets = new uint[header.ChunkCount];
for (int i = 0; i < header.ChunkCount; i++)
{
chunkOffsets[i] = br.ReadUInt32();
}
// read TEX0
br.BaseStream.Position = chunkOffsets[0];
Texture = new TEX0(br);
}
}
