[Olena-patches] last-svn-commit-800-g303e38d Introduce a logger class.

* scribo/debug/logger.hh: New. --- scribo/ChangeLog | 6 + scribo/scribo/debug/logger.hh | 293 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 299 insertions(+), 0 deletions(-) create mode 100644 scribo/scribo/debug/logger.hh diff --git a/scribo/ChangeLog b/scribo/ChangeLog index d28a95b..a377ba0 100644 --- a/scribo/ChangeLog +++ b/scribo/ChangeLog @@ -1,5 +1,11 @@ 2011-03-14 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Introduce a logger class. + + * scribo/debug/logger.hh: New. + +2011-03-14 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Introduce new anchors. * scribo/core/tag/anchor.hh: New anchors. diff --git a/scribo/scribo/debug/logger.hh b/scribo/scribo/debug/logger.hh new file mode 100644 index 0000000..d955f08 --- /dev/null +++ b/scribo/scribo/debug/logger.hh @@ -0,0 +1,293 @@ +// Copyright (C) 2011 EPITA Research and Development Laboratory +// (LRDE) +// +// This file is part of Olena. +// +// Olena is free software: you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the Free +// Software Foundation, version 2 of the License. +// +// Olena is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with Olena. If not, see <http://www.gnu.org/licenses/>. +// +// As a special exception, you may use this file as part of a free +// software project without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to produce +// an executable, this file does not by itself cause the resulting +// executable to be covered by the GNU General Public License. This +// exception does not however invalidate any other reasons why the +// executable file might be covered by the GNU General Public License. + +#ifndef SCRIBO_CORE_LOGGER_HH +# define SCRIBO_CORE_LOGGER_HH + +# include <mln/core/concept/image.hh> +# include <mln/data/wrap.hh> +# include <mln/value/int_u8.hh> +# include <mln/debug/filename.hh> +# include <mln/io/pbm/save.hh> +# include <mln/io/pgm/save.hh> +# include <mln/io/ppm/save.hh> + +namespace scribo +{ + + namespace debug + { + + enum Level + { + None = 0, + Special, // Reserved + Results, + AuxiliaryResults, + All + }; + + + namespace internal + { + using namespace mln; + + class logger_ + { + public: + static logger_& instance(); + + bool is_enabled() const; + bool is_at_level(Level level) const; + + void set_level(Level level); + Level level() const; + + void set_filename_prefix(const char *name); + const char *filename_prefix() const; + + template <typename I> + void log_image(Level dbg_level, + const Image<I>& ima, const char *name); + + private: // Methods + logger_(); + logger_(const logger_&); + + template <unsigned n, typename I> + void log_image_dispatch(const value::int_u<n>&, + const Image<I>& ima, const char *name); + + template <unsigned n, typename I> + void + log_image_dispatch(const value::label<n>&, + const Image<I>& ima, const char *name); + + template <typename I> + void log_image_dispatch(const mln_value(I)&, + const Image<I>& ima, const char *name); + + template <typename I> + void log_image_dispatch(const value::rgb8&, + const Image<I>& ima, const char *name); + + template <typename I> + void log_image_dispatch(const bool&, + const Image<I>& ima, const char *name); + + template <typename I> + void log_image_rgb(const I& ima, const std::string& name); + + template <typename I> + void log_image_bool(const I& ima, const std::string& name); + + template <typename I> + void log_image_grayscale(const I& ima, const std::string& name); + + private: // Attributes + Level level_; + + }; + + } // end of namespace scribo::debug::internal + + + // Return a reference to the logger. + scribo::debug::internal::logger_& logger(); + + +# ifndef MLN_INCLUDE_ONLY + + namespace internal + { + + inline + logger_& + logger_::instance() + { + static logger_ log; + return log; + } + + + inline + logger_::logger_() + : level_(None) + { + // Magick::InitializeMagick(0); + } + + + inline + logger_::logger_(const logger_&) + { + abort(); + } + + + inline + bool + logger_::is_enabled() const + { + return level_ != None; + } + + + inline + bool + logger_::is_at_level(Level level) const + { + return level_ >= level; + } + + + inline + void + logger_::set_filename_prefix(const char *name) + { + mln::debug::internal::filename_prefix = name; + } + + + inline + const char * + logger_::filename_prefix() const + { + return mln::debug::internal::filename_prefix.c_str(); + } + + + inline + void logger_::set_level(Level level) + { + level_ = level; + } + + + inline + Level logger_::level() const + { + return level_; + } + + + template <typename I> + void + logger_::log_image(Level dbg_level, + const Image<I>& ima, const char *name) + { +# ifndef SCRIBO_NDEBUG + if (level_ < dbg_level) + return; + + std::cerr << "Logger - Saving image " << name << std::endl; + mln_assertion(exact(ima).is_valid()); + + typedef mln_value(I) V; + log_image_dispatch(V(), ima, name); +# endif // ! SCRIBO_NDEBUG + } + + + template <unsigned n, typename I> + void + logger_::log_image_dispatch(const value::int_u<n>&, const Image<I>& ima, const char *name) + { + log_image_grayscale(exact(ima), name); + } + + template <unsigned n, typename I> + void + logger_::log_image_dispatch(const value::label<n>&, const Image<I>& ima, const char *name) + { + log_image_grayscale(exact(ima), name); + } + + + template <typename I> + void + logger_::log_image_dispatch(const value::rgb8&, const Image<I>& ima, const char *name) + { + log_image_rgb(exact(ima), name); + } + + template <typename I> + void + logger_::log_image_dispatch(const bool&, const Image<I>& ima, const char *name) + { + log_image_bool(exact(ima), name); + } + + + // template <typename I> + // void + // logger_::log_image_generic(const I& ima, const std::string& name) + // { + // io::magick::save(ima, mln::debug::filename(name + ".png")); + // } + + template <typename I> + void + logger_::log_image_rgb(const I& ima, const std::string& name) + { + io::ppm::save(ima, mln::debug::filename(name + ".ppm")); + } + + + template <typename I> + void + logger_::log_image_bool(const I& ima, const std::string& name) + { + io::pbm::save(ima, mln::debug::filename(name + ".pbm")); + } + + + template <typename I> + void + logger_::log_image_grayscale(const I& ima, const std::string& name) + { + io::pgm::save(data::wrap(value::int_u8(), ima), + mln::debug::filename(name + ".pgm")); + } + + } // end of namespace scribo::debug::internal + + + inline + scribo::debug::internal::logger_& + logger() + { + return scribo::debug::internal::logger_::instance(); + } + + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace scribo::debug + +} // end of namespace scribo + +#endif // ! SCRIBO_CORE_LOGGER_HH -- 1.5.6.5