public MgImageSource DetermineSource(Stream fs)
{
using (var item = new System.Drawing.Bitmap(fs))
{
var width = (uint)item.Width;
var height = (uint)item.Height;
var pixelFormat = item.PixelFormat;
var bpp = GetBpp(pixelFormat);
var uncompressedSize = bpp * width * height;
var zeroMipmap = new MgImageMipmap
{
Offset = 0,
Width = width,
Height = height,
Size = uncompressedSize,
};
return(new MgImageSource
{
Format = DetermineFormat(pixelFormat),
Width = width,
Height = height,
Mipmaps = new[] { zeroMipmap },
Size = uncompressedSize,
});
}
}
public MgImageSource DetermineSource(Stream fs)
{
FreeImageAPI.FIBITMAP dib = FreeImageAPI.FIBITMAP.Zero;
try
{
var format = FreeImageAPI.FREE_IMAGE_FORMAT.FIF_UNKNOWN;
dib = FreeImageAPI.FreeImage.LoadFromStream(fs, ref format);
if (dib.IsNull)
{
throw new InvalidOperationException("Image data invalid");
}
var imageType = FreeImageAPI.FreeImage.GetImageType(dib);
var colorType = FreeImageAPI.FreeImage.GetColorType(dib);
var redMask = FreeImageAPI.FreeImage.GetRedMask(dib);
var greenMask = FreeImageAPI.FreeImage.GetGreenMask(dib);
var blueMask = FreeImageAPI.FreeImage.GetRedMask(dib);
var bpp = FreeImageAPI.FreeImage.GetBPP(dib);
var width = FreeImageAPI.FreeImage.GetWidth(dib);
var height = FreeImageAPI.FreeImage.GetHeight(dib);
var imageSize = FreeImageAPI.FreeImage.GetDIBSize(dib);
var uncompressedSize = bpp * width * height;
var zeroMipmap = new MgImageMipmap
{
Offset = 0,
Width = width,
Height = height,
Size = uncompressedSize,
};
var imgSource = new MgImageSource
{
Format = DetermineFormat(imageType, colorType, bpp, redMask, greenMask, blueMask),
Width = width,
Height = height,
Mipmaps = new[] { zeroMipmap },
Size = uncompressedSize,
};
return(imgSource);
}
finally
{
if (!dib.IsNull)
{
FreeImageAPI.FreeImage.UnloadEx(ref dib);
}
}
}
public KTXFaceData(uint faceIndex, uint noOfMipmaps)
{
FaceIndex = faceIndex;
Mipmaps = new MgImageMipmap[noOfMipmaps];
}
