public ITexImageContainer ReadFrom(BinaryReader reader, TexFormat texFormat)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
if (!texFormat.IsValid())
{
throw new EnumNotValidException <TexFormat>(texFormat);
}
var container = new TexImageContainer
{
Magic = reader.ReadNString(maxLength: 16)
};
var imageCount = reader.ReadInt32();
if (imageCount > Constants.MaximumImageCount)
{
throw new UnsafeTexException(
$"Image count exceeds limit: {imageCount}/{Constants.MaximumImageCount}");
}
switch (container.Magic)
{
case "TEXB0001":
case "TEXB0002":
break;
case "TEXB0003":
container.ImageFormat = (FreeImageFormat)reader.ReadInt32();
break;
default:
throw new UnknownMagicException(nameof(TexImageContainerReader), container.Magic);
}
container.ImageContainerVersion = (TexImageContainerVersion)Convert.ToInt32(container.Magic.Substring(4));
if (!container.ImageFormat.IsValid())
{
throw new EnumNotValidException <FreeImageFormat>(container.ImageFormat);
}
for (var i = 0; i < imageCount; i++)
{
container.Images.Add(_texImageReader.ReadFrom(reader, container, texFormat));
}
return(container);
}
public ITexImage ReadFrom(
BinaryReader reader,
ITexImageContainer container,
TexFormat texFormat)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
if (container == null)
{
throw new ArgumentNullException(nameof(container));
}
if (!texFormat.IsValid())
{
throw new EnumNotValidException <TexFormat>(texFormat);
}
var mipmapCount = reader.ReadInt32();
if (mipmapCount > Constants.MaximumMipmapCount)
{
throw new UnsafeTexException(
$"Mipmap count exceeds limit: {mipmapCount}/{Constants.MaximumMipmapCount}");
}
var readFunction = PickMipmapReader(container.ImageContainerVersion);
var format = TexMipmapFormatGetter.GetFormatForTex(container.ImageFormat, texFormat);
var image = new TexImage();
for (var i = 0; i < mipmapCount; i++)
{
var mipmap = readFunction(reader);
mipmap.Format = format;
if (DecompressMipmapBytes)
{
_texMipmapDecompressor.DecompressMipmap(mipmap);
}
image.Mipmaps.Add(mipmap);
}
return(image);
}