public static extern int PackFontRanges(
ref PackContext spc,
IntPtr fontdata,
int font_index,
[In, Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 4)]
PackRange[] ranges,
int num_ranges);
public static extern void PackEnd(ref PackContext spc);
public static extern void PackSetOversampling(
ref PackContext spc,
uint h_oversample,
uint v_oversample);
public static extern int PackBegin(ref PackContext spc, byte[] pixels, int width, int height, int stride_in_bytes, int padding, IntPtr alloc_context);