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Diffstat (limited to 'boost/gil/io/make_reader.hpp')
| -rw-r--r-- | boost/gil/io/make_reader.hpp | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/boost/gil/io/make_reader.hpp b/boost/gil/io/make_reader.hpp new file mode 100644 index 0000000000..3782e46f34 --- /dev/null +++ b/boost/gil/io/make_reader.hpp @@ -0,0 +1,239 @@ +/* + Copyright 2012 Christian Henning + Use, modification and distribution are subject to 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 + +//////////////////////////////////////////////////////////////////////////////////////// +/// \file +/// \brief +/// \author Christian Henning \n +/// +/// \date 2012 \n +/// +//////////////////////////////////////////////////////////////////////////////////////// + +#include <boost/utility/enable_if.hpp> + +#include <boost/gil/io/get_reader.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 |