public IList <ImageInfo> Load(Stream input)
{
using var br = new BinaryReaderX(input);
// Read header
var header = br.ReadType <CtxbHeader>();
// Read chunks
input.Position = header.chunkOffset;
var chunks = br.ReadMultiple <CtxbChunk>((int)header.chunkCount);
// Read images
var infos = new List <ImageInfo>();
for (var i = 0; i < chunks.Count; i++)
{
foreach (var texture in chunks[i].textures)
{
var format = (texture.dataType << 16) | texture.imageFormat;
input.Position = header.texDataOffset + texture.dataOffset;
var imageInfo = new CtxbImageInfo(br.ReadBytes(texture.dataLength), format, new Size(texture.width, texture.height), i, texture)
{
Name = texture.name
};
imageInfo.RemapPixels.With(context => new CtrSwizzle(context));
infos.Add(imageInfo);
}
}
return(infos);
}
public IList <ImageInfo> Load(Stream input)
{
using var br = new BinaryReaderX(input);
// Read header
var header = br.ReadType <CtxbHeader>();
// Read chunks
input.Position = header.chunkOffset;
var chunks = br.ReadMultiple <CtxbChunk>((int)header.chunkCount);
// Read images
var infos = new List <ImageInfo>();
for (var i = 0; i < chunks.Count; i++)
{
foreach (var texture in chunks[i].textures)
{
input.Position = header.texDataOffset + texture.dataOffset;
// imageFormat is ignored if ETC1(a4)
var format = texture.isETC1 ? texture.imageFormat : (texture.dataType << 16) | texture.imageFormat;
var bitDepth = CtxbSupport.CtxbFormats[(uint)format].BitDepth;
var dataLength = texture.width * texture.height * bitDepth / 8;
var imageData = br.ReadBytes(dataLength);
// Read mip maps
var mipMaps = new byte[texture.mipLvl - 1][];
for (var j = 1; j < texture.mipLvl; j++)
{
mipMaps[j - 1] = br.ReadBytes((texture.width >> j) * (texture.width >> j) * bitDepth / 8);
}
var imageInfo = new CtxbImageInfo(imageData, format, new Size(texture.width, texture.height), i, texture)
{
MipMapData = mipMaps,
Name = texture.name,
};
imageInfo.RemapPixels.With(context => new CtrSwizzle(context));
infos.Add(imageInfo);
}
}
return(infos);
}