2011/3/6 Christian Henning <chhenning@gmail.com>:
Hi Szymon, the new IO extension isn't yet part of boost. Are you referring to my repository at good code?
Also there is no png_load_file() in the old version nor is there a load_image() in the new IO. The test code reads and writes png's in various formats. What is your format? A little code would be nice, too. ;-)
Sorry for not checking for valid function names. I used this code: http://gil-contributions.googlecode.com/files/boost_review.zip. A little portion of my code then ;) using namespace boost::gil; typedef boost::mpl::vector<rgb8_image_t, rgba8_image_t> image_types; any_image<image_types> image; try { png_read_image(file, image); //read_image(file, image, png_tag()); init(); if (image.current_type_is<rgb8_image_t>()) { setData(view(image._dynamic_cast<rgb8_image_t>())); } else if (image.current_type_is<rgba8_image_t>()) { setData(view(image._dynamic_cast<rgba8_image_t>())); } } catch (const std::exception& e) { throw Exception(e.what()) << ". File: " << file; } this is a snippet from implementation of 2D OpenGL texture. setData() is overloaded for various image formats so that valid constant is passed to GL Api (rgb8_image_t image overload passes GL_RGB8 etc). I didn't do anything but changing png_read_image() to read_image() and after running app all images on screen were broken - most of images is white. On a side note: maybe new io could use boost::exception? Would be great if read_image() used boost::errinfo_file_name() when file cannot be opened as now it is not better than just returning error code.