/// <summary>
/// Initializes a new instance based on the specified FreeImage bitmap.
/// </summary>
/// <param name="dib">Handle to a FreeImage bitmap.</param>
/// <param name="scanline">Index of the zero based scanline.</param>
public Scanline(FIBITMAP dib, int scanline)
: this(dib, scanline, (int)(typeof(T) == typeof(FI1BIT) ?
FreeImage.GetBPP(dib) * FreeImage.GetWidth(dib) :
typeof(T) == typeof(FI4BIT) ?
FreeImage.GetBPP(dib) * FreeImage.GetWidth(dib) / 4 :
(FreeImage.GetBPP(dib) * FreeImage.GetWidth(dib)) / (Marshal.SizeOf(typeof(T)) * 8)))
{
}
/// <summary>
/// Initializes a new instance for the given FreeImage bitmap.
/// </summary>
/// <param name="dib">Handle to a FreeImage bitmap.</param>
/// <exception cref="ArgumentNullException"><paramref name="dib"/> is null.</exception>
/// <exception cref="ArgumentException"><paramref name="dib"/> is not
/// <see cref="FREE_IMAGE_TYPE.FIT_BITMAP"/><para/>-or-<para/>
/// <paramref name="dib"/> has more than 8bpp.</exception>
public Palette(FIBITMAP dib)
: base(FreeImage.GetPalette(dib), (int)FreeImage.GetColorsUsed(dib))
{
if (dib.IsNull)
{
throw new ArgumentNullException("dib");
}
if (FreeImage.GetImageType(dib) != FREE_IMAGE_TYPE.FIT_BITMAP)
{
throw new ArgumentException("dib");
}
if (FreeImage.GetBPP(dib) > 8u)
{
throw new ArgumentException("dib");
}
}