public static uint GetBpps(NutexFormat format)
{
switch (format)
{
case NutexFormat.R8G8B8A8Unorm:
case NutexFormat.R8G8B8A8Srgb:
case NutexFormat.B8G8R8A8Unorm:
return(4);
case NutexFormat.Bc1Unorm:
return(8);
case NutexFormat.Bc1Srgb:
return(8);
case NutexFormat.Bc4Unorm:
return(8);
case NutexFormat.Bc4Snorm:
return(8);
case NutexFormat.R32G32B32A32Float:
case NutexFormat.Bc2Unorm:
return(8);
case NutexFormat.Bc2Srgb:
return(8);
case NutexFormat.Bc3Unorm:
return(16);
case NutexFormat.Bc3Srgb:
return(16);
case NutexFormat.Bc5Unorm:
case NutexFormat.Bc5Snorm:
case NutexFormat.Bc6Ufloat:
case NutexFormat.Bc7Unorm:
case NutexFormat.Bc7Srgb:
return(16);
default:
return(0);
}
}
public override void Open()
{
using (BinaryReader reader = new BinaryReader(new FileStream(AbsolutePath, FileMode.Open)))
{
Mipmaps = new List <byte[]>();
// TODO: Why are there empty streams?
if (reader.BaseStream.Length == 0)
{
return;
}
reader.BaseStream.Position = reader.BaseStream.Length - 0xB0;
int[] mipmapSizes = new int[16];
for (int i = 0; i < mipmapSizes.Length; i++)
{
mipmapSizes[i] = reader.ReadInt32();
}
reader.ReadChars(4); // TNX magic
TexName = ReadTexName(reader);
Width = reader.ReadInt32();
Height = reader.ReadInt32();
Depth = reader.ReadInt32();
Format = (NutexFormat)reader.ReadByte();
reader.ReadByte();
ushort padding = reader.ReadUInt16();
reader.ReadUInt32();
int mipCount = reader.ReadInt32();
int alignment = reader.ReadInt32();
int arrayCount = reader.ReadInt32();
int imageSize = reader.ReadInt32();
char[] magic = reader.ReadChars(4);
int majorVersion = reader.ReadInt16();
int minorVersion = reader.ReadInt16();
uint blkWidth = (uint)BlkDims[Format].X;
uint blkHeight = (uint)BlkDims[Format].Y;
uint blockHeight = SwitchSwizzler.GetBlockHeight(SwitchSwizzler.DivRoundUp((uint)Height, blkHeight));
uint blockHeightLog2 = (uint)Convert.ToString(blockHeight, 2).Length - 1;
uint tileMode = 0;
uint bpp = GetBpps(Format);
reader.BaseStream.Position = 0;
int blockHeightShift = 0;
for (int i = 0; i < 1; i++)
{
int size = mipmapSizes[i];
if (i == 0 && size % alignment != 0)
{
size += alignment - (size % alignment);
}
byte[] deswiz = SwitchSwizzler.Deswizzle((uint)Width, (uint)Height, blkWidth, blkHeight, 0, bpp, tileMode, (int)Math.Max(0, blockHeightLog2 - blockHeightShift), reader.ReadBytes(imageSize));
byte[] trimmed = new byte[mipmapSizes[0]];
Array.Copy(deswiz, 0, trimmed, 0, trimmed.Length);
Mipmaps.Add(trimmed);
}
}
}
