112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
/*
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Copyright 2007-2008 Christian Henning, Andreas Pokorny, Lubomir Bourdev
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Use, modification and distribution are subject to the Boost Software License,
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Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt).
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*/
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/*************************************************************************************************/
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#ifndef BOOST_GIL_EXTENSION_IO_DETAIL_BASE_HPP
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#define BOOST_GIL_EXTENSION_IO_DETAIL_BASE_HPP
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////////////////////////////////////////////////////////////////////////////////////////
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/// \file
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/// \brief
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/// \author Christian Henning, Andreas Pokorny, Lubomir Bourdev \n
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///
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/// \date 2007-2008 \n
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///
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////////////////////////////////////////////////////////////////////////////////////////
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#include <ostream>
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#include <istream>
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#include <vector>
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#include <boost/array.hpp>
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#include <boost/bind.hpp>
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#include <boost/type_traits/is_base_of.hpp>
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#include <boost/gil/utilities.hpp>
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#include <boost/gil/color_convert.hpp>
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#include <boost/gil/bit_aligned_pixel_reference.hpp>
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#include <boost/gil/bit_aligned_pixel_iterator.hpp>
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#include <boost/gil/extension/toolbox/gil_extensions.hpp>
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#include "typedefs.hpp"
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#include "io_error.hpp"
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namespace boost { namespace gil {
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struct format_tag {};
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template< typename Property >
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struct property_base
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{
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typedef Property type;
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};
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template<typename FormatTag> struct is_format_tag : is_base_and_derived< format_tag
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, FormatTag
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> {};
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struct image_read_settings_base
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{
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protected:
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image_read_settings_base()
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: _top_left( 0, 0 )
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, _dim ( 0, 0 )
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{}
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image_read_settings_base( const point_t& top_left
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, const point_t& dim
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)
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: _top_left( top_left )
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, _dim ( dim )
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{}
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public:
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point_t _top_left;
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point_t _dim;
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};
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/**
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* Boolean meta function, mpl::true_ if the pixel type \a PixelType is supported
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* by the image format identified with \a FormatTag.
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* \todo the name is_supported is to generic, pick something more IO realted.
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*/
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// Depending on image type the parameter Pixel can be a reference type
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// for bit_aligned images or a pixel for byte images.
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template< typename Pixel, typename FormatTag > struct is_read_supported {};
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template< typename Pixel, typename FormatTag > struct is_write_supported {};
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namespace detail {
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template< typename Property >
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struct property_base
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{
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typedef Property type;
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};
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struct read_support_true { BOOST_STATIC_CONSTANT( bool, is_supported = true ); };
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struct read_support_false { BOOST_STATIC_CONSTANT( bool, is_supported = false ); };
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struct write_support_true { BOOST_STATIC_CONSTANT( bool, is_supported = true ); };
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struct write_support_false{ BOOST_STATIC_CONSTANT( bool, is_supported = false ); };
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class no_log {};
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} // namespace detail
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template<typename FormatTag> struct image_read_info;
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template<typename FormatTag> struct image_read_settings;
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template<typename FormatTag, typename Log = typename detail::no_log > struct image_write_info;
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} // namespace gil
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} // namespace boost
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#endif // BOOST_GIL_EXTENSION_IO_DETAIL_BASE_HPP
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