Chris@16: /*
Chris@16:     Copyright 2005-2007 Adobe Systems Incorporated
Chris@16:    
Chris@16:     Use, modification and distribution are subject to the Boost Software License,
Chris@16:     Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:     http://www.boost.org/LICENSE_1_0.txt).
Chris@16: 
Chris@16:     See http://opensource.adobe.com/gil for most recent version including documentation.
Chris@16: */
Chris@16: /*************************************************************************************************/
Chris@16: 
Chris@16: #ifndef GIL_RGBA_H
Chris@16: #define GIL_RGBA_H
Chris@16: 
Chris@16: ////////////////////////////////////////////////////////////////////////////////////////
Chris@16: /// \file
Chris@16: /// \brief Support for RGBA color space and variants
Chris@16: /// \author Lubomir Bourdev and Hailin Jin \n
Chris@16: ///         Adobe Systems Incorporated
Chris@16: /// \date   2005-2007 \n Last updated on October 10, 2007
Chris@16: ////////////////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: #include <cstddef>
Chris@16: #include "gil_config.hpp"
Chris@16: #include <boost/mpl/contains.hpp>
Chris@16: #include "rgb.hpp"
Chris@16: #include "planar_pixel_iterator.hpp"
Chris@16: 
Chris@16: namespace boost { namespace gil {
Chris@16: 
Chris@16: /// \ingroup ColorNameModel
Chris@16: /// \brief Alpha
Chris@16: struct alpha_t {};    
Chris@16: 
Chris@16: /// \ingroup ColorSpaceModel
Chris@16: typedef mpl::vector4<red_t,green_t,blue_t,alpha_t> rgba_t;
Chris@16: 
Chris@16: /// \ingroup LayoutModel
Chris@16: typedef layout<rgba_t> rgba_layout_t;
Chris@16: /// \ingroup LayoutModel
Chris@16: typedef layout<rgba_t, mpl::vector4_c<int,2,1,0,3> > bgra_layout_t;
Chris@16: /// \ingroup LayoutModel
Chris@16: typedef layout<rgba_t, mpl::vector4_c<int,1,2,3,0> > argb_layout_t;
Chris@16: /// \ingroup LayoutModel
Chris@16: typedef layout<rgba_t, mpl::vector4_c<int,3,2,1,0> > abgr_layout_t;
Chris@16: 
Chris@16: /// \ingroup ImageViewConstructors
Chris@16: /// \brief from raw RGBA planar data
Chris@16: template <typename IC>
Chris@16: inline
Chris@16: typename type_from_x_iterator<planar_pixel_iterator<IC,rgba_t> >::view_t
Chris@16: planar_rgba_view(std::size_t width, std::size_t height,
Chris@16:                  IC r, IC g, IC b, IC a,
Chris@16:                  std::ptrdiff_t rowsize_in_bytes) {
Chris@16:     typedef typename type_from_x_iterator<planar_pixel_iterator<IC,rgba_t> >::view_t RView;
Chris@16:     return RView(width, height,
Chris@16:                  typename RView::locator(planar_pixel_iterator<IC,rgba_t>(r,g,b,a),
Chris@16:                                          rowsize_in_bytes));
Chris@16: }
Chris@16: 
Chris@16: } }  // namespace boost::gil
Chris@16: 
Chris@16: #endif