boost/gil/io/make_reader.hpp
// // Copyright 2012 Christian Henning // // Distributed under the Boost Software License, Version 1.0 // See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt // #ifndef BOOST_GIL_IO_MAKE_READER_HPP #define BOOST_GIL_IO_MAKE_READER_HPP #include <boost/gil/io/get_reader.hpp> #include <boost/utility/enable_if.hpp> namespace boost { namespace gil { template< typename String , typename FormatTag , typename ConversionPolicy > inline typename get_reader< String , FormatTag , ConversionPolicy >::type make_reader( const String& file_name , const image_read_settings< FormatTag >& settings , const ConversionPolicy& , typename enable_if< mpl::and_< detail::is_supported_path_spec< String > , is_format_tag< FormatTag > > >::type* /* ptr */ = 0 ) { typename get_read_device< String , FormatTag >::type device( detail::convert_to_native_string( file_name ) , typename detail::file_stream_device< FormatTag >::read_tag() ); return typename get_reader< String , FormatTag , ConversionPolicy >::type( device , settings ); } template< typename FormatTag , typename ConversionPolicy > inline typename get_reader< std::wstring , FormatTag , ConversionPolicy >::type make_reader( const std::wstring& file_name , const image_read_settings< FormatTag >& settings , const ConversionPolicy& ) { const char* str = detail::convert_to_native_string( file_name ); typename get_read_device< std::wstring , FormatTag >::type device( str , typename detail::file_stream_device< FormatTag >::read_tag() ); delete[] str; return typename get_reader< std::wstring , FormatTag , ConversionPolicy >::type( device , settings ); } #ifdef BOOST_GIL_IO_ADD_FS_PATH_SUPPORT template< typename FormatTag , typename ConversionPolicy > inline typename get_reader< std::wstring , FormatTag , ConversionPolicy >::type make_reader( const filesystem::path& path , const image_read_settings< FormatTag >& settings , const ConversionPolicy& cc ) { return make_reader( path.wstring() , settings , cc ); } #endif // BOOST_GIL_IO_ADD_FS_PATH_SUPPORT template< typename Device , typename FormatTag , typename ConversionPolicy > inline typename get_reader< Device , FormatTag , ConversionPolicy >::type make_reader( Device& file , const image_read_settings< FormatTag >& settings , const ConversionPolicy& , typename enable_if< mpl::and_< detail::is_adaptable_input_device< FormatTag , Device > , is_format_tag< FormatTag > > >::type* /* ptr */ = 0 ) { typename get_read_device< Device , FormatTag >::type device( file ); return typename get_reader< Device , FormatTag , ConversionPolicy >::type( device , settings ); } // no image_read_settings template< typename String , typename FormatTag , typename ConversionPolicy > inline typename get_reader< String , FormatTag , ConversionPolicy >::type make_reader( const String& file_name , const FormatTag& , const ConversionPolicy& cc , typename enable_if< mpl::and_< detail::is_supported_path_spec< String > , is_format_tag< FormatTag > > >::type* /* ptr */ = 0 ) { return make_reader( file_name , image_read_settings< FormatTag >() , cc ); } template< typename FormatTag , typename ConversionPolicy > inline typename get_reader< std::wstring , FormatTag , ConversionPolicy >::type make_reader( const std::wstring& file_name , const FormatTag& , const ConversionPolicy& cc ) { return make_reader( file_name , image_read_settings< FormatTag >() , cc ); } #ifdef BOOST_GIL_IO_ADD_FS_PATH_SUPPORT template< typename FormatTag , typename ConversionPolicy > inline typename get_reader< std::wstring , FormatTag , ConversionPolicy >::type make_reader( const filesystem::path& path , const FormatTag& , const ConversionPolicy& cc ) { return make_reader( path.wstring() , image_read_settings< FormatTag >() , cc ); } #endif // BOOST_GIL_IO_ADD_FS_PATH_SUPPORT template< typename Device , typename FormatTag , typename ConversionPolicy > inline typename get_reader< Device , FormatTag , ConversionPolicy >::type make_reader( Device& file , const FormatTag& , const ConversionPolicy& cc , typename enable_if< mpl::and_< detail::is_adaptable_input_device< FormatTag , Device > , is_format_tag< FormatTag > > >::type* /* ptr */ = 0 ) { return make_reader( file , image_read_settings< FormatTag >() , cc ); } } // namespace gil } // namespace boost #endif