1/*
2 Copyright 2005-2007 Adobe Systems Incorporated
3
4 Use, modification and distribution are subject to the Boost Software License,
5 Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6 http://www.boost.org/LICENSE_1_0.txt).
7
8 See http://opensource.adobe.com/gil for most recent version including documentation.
9*/
10/*************************************************************************************************/
11
12#ifndef GIL_RGBA_H
13#define GIL_RGBA_H
14
15////////////////////////////////////////////////////////////////////////////////////////
16/// \file
17/// \brief Support for RGBA color space and variants
18/// \author Lubomir Bourdev and Hailin Jin \n
19/// Adobe Systems Incorporated
20/// \date 2005-2007 \n Last updated on October 10, 2007
21////////////////////////////////////////////////////////////////////////////////////////
22
23#include <cstddef>
24#include "gil_config.hpp"
25#include <boost/mpl/contains.hpp>
26#include "rgb.hpp"
27#include "planar_pixel_iterator.hpp"
28
29namespace boost { namespace gil {
30
31/// \ingroup ColorNameModel
32/// \brief Alpha
33struct alpha_t {};
34
35/// \ingroup ColorSpaceModel
36typedef mpl::vector4<red_t,green_t,blue_t,alpha_t> rgba_t;
37
38/// \ingroup LayoutModel
39typedef layout<rgba_t> rgba_layout_t;
40/// \ingroup LayoutModel
41typedef layout<rgba_t, mpl::vector4_c<int,2,1,0,3> > bgra_layout_t;
42/// \ingroup LayoutModel
43typedef layout<rgba_t, mpl::vector4_c<int,1,2,3,0> > argb_layout_t;
44/// \ingroup LayoutModel
45typedef layout<rgba_t, mpl::vector4_c<int,3,2,1,0> > abgr_layout_t;
46
47/// \ingroup ImageViewConstructors
48/// \brief from raw RGBA planar data
49template <typename IC>
50inline
51typename type_from_x_iterator<planar_pixel_iterator<IC,rgba_t> >::view_t
52planar_rgba_view(std::size_t width, std::size_t height,
53 IC r, IC g, IC b, IC a,
54 std::ptrdiff_t rowsize_in_bytes) {
55 typedef typename type_from_x_iterator<planar_pixel_iterator<IC,rgba_t> >::view_t RView;
56 return RView(width, height,
57 typename RView::locator(planar_pixel_iterator<IC,rgba_t>(r,g,b,a),
58 rowsize_in_bytes));
59}
60
61} } // namespace boost::gil
62
63#endif
64

source code of boost/boost/gil/rgba.hpp