packed_pixel

A heterogeneous pixel used to represent packed pixels with non-byte-aligned channels. Models PixelValueConcept. More...

Classes
struct	packed_pixel< P, C, L >
	Heterogeneous pixel value whose channel references can be constructed from the pixel bitfield and their index. Models ColorBaseValueConcept, PixelValueConcept, PixelBasedConcept Typical use for this is a model of a packed pixel (like 565 RGB) More...

Detailed Description

A heterogeneous pixel used to represent packed pixels with non-byte-aligned channels. Models PixelValueConcept.

Example:

typedef packed_pixel_type<uint16_t, mpl::vector3_c<unsigned,5,6,5>, rgb_layout_t>::type rgb565_pixel_t;
BOOST_STATIC_ASSERT((sizeof(rgb565_pixel_t)==2));

rgb565_pixel_t r565;
get_color(r565,red_t())   = 31;
get_color(r565,green_t()) = 63;
get_color(r565,blue_t())  = 31;
assert(r565 == rgb565_pixel_t((uint16_t)0xFFFF));