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00012 #ifndef GIL_RGBA_H
00013 #define GIL_RGBA_H
00014
00022
00023 #include "gil_config.hpp"
00024 #include <boost/mpl/contains.hpp>
00025 #include "rgb.hpp"
00026 #include "planar_pixel_iterator.hpp"
00027
00028 namespace boost { namespace gil {
00029
00032 struct alpha_t {};
00033
00035 typedef mpl::vector4<red_t,green_t,blue_t,alpha_t> rgba_t;
00036
00038 typedef layout<rgba_t> rgba_layout_t;
00040 typedef layout<rgba_t, mpl::vector4_c<int,2,1,0,3> > bgra_layout_t;
00042 typedef layout<rgba_t, mpl::vector4_c<int,1,2,3,0> > argb_layout_t;
00044 typedef layout<rgba_t, mpl::vector4_c<int,3,2,1,0> > abgr_layout_t;
00045
00048 template <typename IC>
00049 inline
00050 typename type_from_x_iterator<planar_pixel_iterator<IC,rgba_t> >::view_t
00051 planar_rgba_view(int width, int height,
00052 IC r, IC g, IC b, IC a,
00053 std::ptrdiff_t rowsize_in_bytes) {
00054 typedef typename type_from_x_iterator<planar_pixel_iterator<IC,rgba_t> >::view_t RView;
00055 return RView(width, height,
00056 typename RView::locator(planar_pixel_iterator<IC,rgba_t>(r,g,b,a),
00057 rowsize_in_bytes));
00058 }
00059
00060 } }
00061
00062 #endif