public static Tex LoadTex(byte[] bytes, int maxMipmapsToLoad = -1)
{
var stream = new MemoryStream(bytes);
var reader = new BinaryReader(stream, Encoding.ASCII);
Tex tex;
try
{
tex = new Tex();
tex.Magic = reader.ReadNString();
if (tex.Magic != "TEXV0005")
{
throw new InvalidTexHeaderMagic("TEXV0005", tex.Magic);
}
tex.Magic2 = reader.ReadNString();
if (tex.Magic2 != "TEXI0001")
{
throw new InvalidTexHeaderMagic("TEXI0001", tex.Magic2);
}
tex.Format = (TexFormat)reader.ReadInt32();
tex._unkInt_1 = reader.ReadInt32();
tex.TextureWidth = reader.ReadInt32();
tex.TextureHeight = reader.ReadInt32();
tex.ImageWidth = reader.ReadInt32();
tex.ImageHeight = reader.ReadInt32();
tex._unkInt_2 = reader.ReadUInt32(); // some checksum or something
// mipmap header
tex.TextureContainerMagic = reader.ReadNString();
if (tex.TextureContainerMagic == "TEXB0003")
{
tex.TextureContainerVersion = TexMipmapVersion.Version3;
tex._unkIntCont_0 = reader.ReadInt32();
tex.ImageFormat = (FreeImageFormat)reader.ReadInt32();
}
else if (tex.TextureContainerMagic == "TEXB0002")
{
tex.TextureContainerVersion = TexMipmapVersion.Version2;
tex._unkIntCont_0 = reader.ReadInt32();
}
else
{
throw new InvalidTexHeaderMagic("TEXB0003/TEXB0002", tex.TextureContainerMagic);
}
tex.MipmapCount = reader.ReadInt32();
if (maxMipmapsToLoad == 0)
{
return(tex);
}
var mipmapCount = tex.MipmapCount;
if (maxMipmapsToLoad > 0)
{
mipmapCount = Math.Min(maxMipmapsToLoad, mipmapCount);
}
for (var i = 0; i < mipmapCount; i++)
{
tex.Mipmaps.Add(ReadMipmap(reader));
}
}
finally
{
reader.Close();
}
return(tex);
}
public static Tex LoadTex(byte[] bytes, int maxMipmapsToLoad = -1)
{
var stream = new MemoryStream(bytes);
var reader = new BinaryReader(stream, Encoding.ASCII);
Tex tex;
try
{
tex = new Tex {
Magic = reader.ReadNString()
};
if (tex.Magic != "TEXV0005")
{
throw new InvalidTexHeaderMagic("TEXV0005", tex.Magic);
}
tex.Magic2 = reader.ReadNString();
if (tex.Magic2 != "TEXI0001")
{
throw new InvalidTexHeaderMagic("TEXI0001", tex.Magic2);
}
tex.FormatId = reader.ReadInt32();
switch (tex.FormatId)
{
case 0:
tex.Format = TexFormat.ARGB8888;
break;
case 4:
tex.Format = TexFormat.DXT5;
break;
case 6:
tex.Format = TexFormat.DXT3;
break;
case 7:
tex.Format = TexFormat.DXT1;
break;
default:
throw new Exception(
$"Unknown tex format id: {tex.FormatId} for {tex.TextureContainerMagic}");
}
tex.Flags = (TexFlags)reader.ReadInt32();
tex.TextureWidth = reader.ReadInt32();
tex.TextureHeight = reader.ReadInt32();
tex.ImageWidth = reader.ReadInt32();
tex.ImageHeight = reader.ReadInt32();
tex.UnkInt0 = reader.ReadUInt32();
// mipmap header
tex.TextureContainerMagic = reader.ReadNString();
if (tex.TextureContainerMagic == "TEXB0003")
{
tex.TextureContainerVersion = TexMipmapVersion.Version3;
tex.UnkIntCont0 = reader.ReadInt32();
tex.ImageFormat = (FreeImageFormat)reader.ReadInt32();
}
else if (tex.TextureContainerMagic == "TEXB0002")
{
tex.TextureContainerVersion = TexMipmapVersion.Version2;
tex.UnkIntCont0 = reader.ReadInt32();
}
else if (tex.TextureContainerMagic == "TEXB0001")
{
tex.TextureContainerVersion = TexMipmapVersion.Version1;
tex.UnkIntCont0 = reader.ReadInt32();
}
else
{
throw new InvalidTexHeaderMagic("TEXB0001/TEXB0002/TEXB0003", tex.TextureContainerMagic);
}
tex.MipmapCount = reader.ReadInt32();
if (maxMipmapsToLoad == 0)
{
return(tex);
}
var mipmapCount = tex.MipmapCount;
if (maxMipmapsToLoad > 0)
{
mipmapCount = Math.Min(maxMipmapsToLoad, mipmapCount);
}
for (var i = 0; i < mipmapCount; i++)
{
tex.Mipmaps.Add(ReadMipmap(reader, tex.TextureContainerVersion));
}
}
finally
{
reader.Close();
}
return(tex);
}
