public static byte[] ToPixelData(this Image image, TextureFormat fmt)
{
switch (fmt)
{
case D3DFMT_A8R8G8B8: return(image.ToPixelData <Bgra32>(fmt));
case D3DFMT_L8: return(image.ToPixelData <L8>(fmt));
case D3DFMT_A8: return(image.ToPixelData <A8>(fmt));
case D3DFMT_A1R5G5B5: return(image.ToPixelData <Bgra5551>(fmt));
case D3DFMT_A8B8G8R8: return(image.ToPixelData <Rgba32>(fmt));
}
var uncompressed = image.ToPixelData <Rgba32>(D3DFMT_A8B8G8R8);
var compressed = new byte[fmt.Size(image.Width, image.Height)];
if (!FuckDX.encode(uncompressed, fmt, 2, image.Width, image.Height, compressed))
{
throw new NotSupportedException(
$"Failed to encode: I guess {fmt} is not supported :( Mention @Kng if you care"
);
}
return(compressed);
}
public static byte[] ToPixelData <T>(this Image image, TextureFormat fmt)
where T : unmanaged, IPixel <T>
{
var img = image.CloneAs <T>();
var stride = fmt.Stride(img.Width);
var bytes = new byte[fmt.Size(img.Width, img.Height)];
for (int i = 0; i < img.Height; i++)
{
MemoryMarshal.AsBytes(img.GetPixelRowSpan(i))
.CopyTo(bytes.AsSpan(stride * i, stride));
}
return(bytes);
}