png_io.hpp Go to the documentation of this file. /* Copyright 2005-2007 Adobe Systems Incorporated 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). See http://opensource.adobe.com/gil for most recent version including documentation. */ /*************************************************************************************************/ #ifndef GIL_PNG_IO_H #define GIL_PNG_IO_H // // We are currently providing the following functions: // point2<std::ptrdiff_t> png_read_dimensions(const char*) // template <typename View> void png_read_view(const char*,const View&) // template <typename View> void png_read_image(const char*,image<View>&) // template <typename View> void png_write_view(const char*,const View&) // template <typename View> struct png_read_support; // template <typename View> struct png_write_support; // #include <stdio.h> #include <string> extern "C" { #include "png.h" } #include <boost/static_assert.hpp> #include "../../gil_config.hpp" #include "../../utilities.hpp" #include "io_error.hpp" #include "png_io_private.hpp" namespace boost { namespace gil { inline point2<std::ptrdiff_t> png_read_dimensions(const char *filename) { detail::png_reader m(filename); return m.get_dimensions(); } inline point2<std::ptrdiff_t> png_read_dimensions(const std::string& filename) { return png_read_dimensions(filename.c_str()); } template <typename View> struct png_read_support { BOOST_STATIC_CONSTANT(bool,is_supported= (detail::png_read_support_private<typename channel_type<View>::type, typename color_space_type<View>::type>::is_supported)); BOOST_STATIC_CONSTANT(int,bit_depth= (detail::png_read_support_private<typename channel_type<View>::type, typename color_space_type<View>::type>::bit_depth)); BOOST_STATIC_CONSTANT(int,color_type= (detail::png_read_support_private<typename channel_type<View>::type, typename color_space_type<View>::type>::color_type)); BOOST_STATIC_CONSTANT(bool, value=is_supported); }; template <typename View> inline void png_read_view(const char* filename,const View& view) { BOOST_STATIC_ASSERT(png_read_support<View>::is_supported); detail::png_reader m(filename); m.apply(view); } template <typename View> inline void png_read_view(const std::string& filename,const View& view) { png_read_view(filename.c_str(),view); } template <typename Image> inline void png_read_image(const char* filename,Image& im) { BOOST_STATIC_ASSERT(png_read_support<typename Image::view_t>::is_supported); detail::png_reader m(filename); m.read_image(im); } template <typename Image> inline void png_read_image(const std::string& filename,Image& im) { png_read_image(filename.c_str(),im); } template <typename View,typename CC> inline void png_read_and_convert_view(const char* filename,const View& view,CC cc) { detail::png_reader_color_convert<CC> m(filename,cc); m.apply(view); } template <typename View> inline void png_read_and_convert_view(const char* filename,const View& view) { detail::png_reader_color_convert<default_color_converter> m(filename,default_color_converter()); m.apply(view); } template <typename View,typename CC> inline void png_read_and_convert_view(const std::string& filename,const View& view,CC cc) { png_read_and_convert_view(filename.c_str(),view,cc); } template <typename View> inline void png_read_and_convert_view(const std::string& filename,const View& view) { png_read_and_convert_view(filename.c_str(),view); } template <typename Image,typename CC> inline void png_read_and_convert_image(const char* filename,Image& im,CC cc) { detail::png_reader_color_convert<CC> m(filename,cc); m.read_image(im); } template <typename Image> inline void png_read_and_convert_image(const char* filename,Image& im) { detail::png_reader_color_convert<default_color_converter> m(filename,default_color_converter()); m.read_image(im); } template <typename Image,typename CC> inline void png_read_and_convert_image(const std::string& filename,Image& im,CC cc) { png_read_and_convert_image(filename.c_str(),im,cc); } template <typename Image> inline void png_read_and_convert_image(const std::string& filename,Image& im) { png_read_and_convert_image(filename.c_str(),im); } template <typename View> struct png_write_support { BOOST_STATIC_CONSTANT(bool,is_supported= (detail::png_write_support_private<typename channel_type<View>::type, typename color_space_type<View>::type>::is_supported)); BOOST_STATIC_CONSTANT(int,bit_depth= (detail::png_write_support_private<typename channel_type<View>::type, typename color_space_type<View>::type>::bit_depth)); BOOST_STATIC_CONSTANT(int,color_type= (detail::png_write_support_private<typename channel_type<View>::type, typename color_space_type<View>::type>::color_type)); BOOST_STATIC_CONSTANT(bool, value=is_supported); }; template <typename View> inline void png_write_view(const char* filename,const View& view) { BOOST_STATIC_ASSERT(png_write_support<View>::is_supported); detail::png_writer m(filename); m.apply(view); } template <typename View> inline void png_write_view(const std::string& filename,const View& view) { png_write_view(filename.c_str(),view); } } } // namespace boost::gil #endif

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