//
//------------------ DOK FILE --------------------------------------------------
+Header	core.2d.png.maker
=pkg	core.2d.png.maker
=title	core.2d.png.maker
=short	encoding PNG files
=desc	This package contains functions to encode with the PNG file format (*.png files).
//
//
//------------------ PROTO ----------------------------------------------------- pngFromBitmap
+Proto	pngFromBitmap
=type	fun Bitmap Bool -> Str
=mode	function
=pkg	core.2d.png.maker
=impl	mcy
=link	
=desc	This function computes the png encoding of the bitmap bmp. The alpha parameter decides whether the png contains the alpha channel.
//
+arg	bmp
=type	Bitmap
=desc	A bitmap
//
+arg	alpha
=type	Bool
=desc	A boolean
//
+arg	result
=type	Str
=desc	A binary string encoding the bitmap as a png content.