public static Bitmap GetBitmap(Texture texture, int ArrayLevel = 0, int MipLevel = 0, int DepthLevel = 0)
{
int width = (int)Math.Max(1, texture.Width >> MipLevel);
int height = (int)Math.Max(1, texture.Height >> MipLevel);
TextureFormatInfo formatInfo = TextureFormatInfo.FormatTable[texture.Format];
Memory <byte> data = GetImageData(texture, ArrayLevel, MipLevel, DepthLevel);
if (AstcDecoder.CanHandle(texture))
{
if (AstcDecoder.TryDecodeToRgba8(data, (int)formatInfo.BlockWidth, (int)formatInfo.BlockHeight, width, height, 1, 1, out var decoded))
{
return(GetBitmapFromBytes(ConvertBgraToRgba(decoded), width, height, PixelFormat.Format32bppArgb));
}
}
else if (DDSDecoder.CanHandle(texture))
{
return(DDSDecoder.Decompress(data.Span, width, height, texture.Format));
}
else if (RgbaDecoder.CanHandle(texture))
{
return(RgbaDecoder.Decode(data.Span, width, height, texture.Format));
}
return(null);
}
public static Memory <byte> GetImageData(Texture texture, int targetArrayLevel = 0, int targetMipLevel = 0, int targetDepthLevel = 0)
{
TextureFormatInfo formatInfo = TextureFormatInfo.FormatTable[texture.Format];
int target = 1;
uint blkWidth = formatInfo.BlockWidth;
uint blkHeight = formatInfo.BlockHeight;
int linesPerBlockHeight = (1 << (int)texture.BlockHeightLog2) * 8;
uint bpp = formatInfo.BytesPerPixel;
uint numDepth = 1;
for (int depthLevel = 0; depthLevel < numDepth; depthLevel++)
{
for (int arrayLevel = 0; arrayLevel < texture.TextureData.Count; arrayLevel++)
{
int blockHeightShift = 0;
for (int mipLevel = 0; mipLevel < texture.TextureData[arrayLevel].Count; mipLevel++)
{
uint width = Math.Max(1, texture.Width >> mipLevel);
uint height = Math.Max(1, texture.Height >> mipLevel);
uint size = TegraX1Swizzle.DivRoundUp(width, blkWidth) * TegraX1Swizzle.DivRoundUp(height, blkHeight) * bpp;
if (TegraX1Swizzle.Pow2RoundUp(TegraX1Swizzle.DivRoundUp(height, blkWidth)) < linesPerBlockHeight)
{
blockHeightShift += 1;
}
if (targetArrayLevel == arrayLevel && targetMipLevel == mipLevel && targetDepthLevel == depthLevel)
{
//Console.WriteLine($"{width} {height} {depth} {blkWidth} {blkHeight} {blkDepth} {target} {bpp} {texture.TileMode} {(int)Math.Max(0, texture.BlockHeightLog2 - blockHeightShift)} {texture.TextureData[arrayLevel][mipLevel].Length}");
var result = TegraX1Swizzle.Deswizzle(width, height, blkWidth, blkHeight, target, bpp, (uint)texture.TileMode, (int)Math.Max(0, texture.BlockHeightLog2 - blockHeightShift), texture.TextureData[arrayLevel][mipLevel]);
return(new ArraySegment <byte>(result, 0, (int)size));
}
}
}
}
return(new byte[0]);
}
