text: ////////////////////////////////////////////////////////////
  //
  // SFML - Simple and Fast Multimedia Library
  // Copyright (C) 2007-2014 Laurent Gomila (laurent.gom@gmail.com)
  //
  // This software is provided 'as-is', without any express or implied warranty.
  // In no event will the authors be held liable for any damages arising from the use of this software.
  //
  // Permission is granted to anyone to use this software for any purpose,
  // including commercial applications, and to alter it and redistribute it freely,
  // subject to the following restrictions:
  //
  // 1. The origin of this software must not be misrepresented;
  //    you must not claim that you wrote the original software.
  //    If you use this software in a product, an acknowledgment
  //    in the product documentation would be appreciated but is not required.
  //
  // 2. Altered source versions must be plainly marked as such,
  //    and must not be misrepresented as being the original software.
  //
  // 3. This notice may not be removed or altered from any source distribution.
  //
  ////////////////////////////////////////////////////////////
  
  #ifndef SFML_IMAGELOADER_HPP
  #define SFML_IMAGELOADER_HPP
  
  ////////////////////////////////////////////////////////////
  // Headers
  ////////////////////////////////////////////////////////////
  #include <SFML/System/NonCopyable.hpp>
  #include <SFML/System/Vector2.hpp>
  #include <string>
  #include <vector>
  
  
  namespace sf
  {
  class InputStream;
  
  namespace priv
  {
  ////////////////////////////////////////////////////////////
  /// \brief Load/save image files
  ///
  ////////////////////////////////////////////////////////////
  class ImageLoader : NonCopyable
  {
  public :
  
      ////////////////////////////////////////////////////////////
      /// \brief Get the unique instance of the class
      ///
      /// \return Reference to the ImageLoader instance
      ///
      ////////////////////////////////////////////////////////////
      static ImageLoader& getInstance();
  
      ////////////////////////////////////////////////////////////
      /// \brief Load an image from a file on disk
      ///
      /// \param filename Path of image file to load
      /// \param pixels   Array of pixels to fill with loaded image
      /// \param size     Size of loaded image, in pixels
      ///
      /// \return True if loading was successful
      ///
      ////////////////////////////////////////////////////////////
      bool loadImageFromFile(const std::string& filename, std::vector<Uint8>& pixels, Vector2u& size);
  
      ////////////////////////////////////////////////////////////
      /// \brief Load an image from a file in memory
      ///
      /// \param data     Pointer to the file data in memory
      /// \param dataSize Size of the data to load, in bytes
      /// \param pixels   Array of pixels to fill with loaded image
      /// \param size     Size of loaded image, in pixels
      ///
      /// \return True if loading was successful
      ///
      ////////////////////////////////////////////////////////////
      bool loadImageFromMemory(const void* data, std::size_t dataSize, std::vector<Uint8>& pixels, Vector2u& size);
  
      ////////////////////////////////////////////////////////////
      /// \brief Load an image from a custom stream
      ///
      /// \param stream Source stream to read from
      /// \param pixels Array of pixels to fill with loaded image
      /// \param size   Size of loaded image, in pixels
      ///
      /// \return True if loading was successful
      ///
      ////////////////////////////////////////////////////////////
      bool loadImageFromStream(InputStream& stream, std::vector<Uint8>& pixels, Vector2u& size);
  
      ////////////////////////////////////////////////////////////
      /// \bref Save an array of pixels as an image file
      ///
      /// \param filename Path of image file to save
      /// \param pixels   Array of pixels to save to image
      /// \param size     Size of image to save, in pixels
      ///
      /// \return True if saving was successful
      ///
      ////////////////////////////////////////////////////////////
      bool saveImageToFile(const std::string& filename, const std::vector<Uint8>& pixels, const Vector2u& size);
  
  private :
  
      ////////////////////////////////////////////////////////////
      /// \brief Default constructor
      ///
      ////////////////////////////////////////////////////////////
      ImageLoader();
  
      ////////////////////////////////////////////////////////////
      /// \brief Destructor
      ///
      ////////////////////////////////////////////////////////////
      ~ImageLoader();
  
      ////////////////////////////////////////////////////////////
      /// \brief Save an image file in JPEG format
      ///
      /// \param filename Path of image file to save
      /// \param pixels   Array of pixels to save to image
      /// \param width    Width of image to save, in pixels
      /// \param height   Height of image to save, in pixels
      ///
      /// \return True if saving was successful
      ///
      ////////////////////////////////////////////////////////////
      bool writeJpg(const std::string& filename, const std::vector<Uint8>& pixels, unsigned int width, unsigned int height);
  };
  
  } // namespace priv
  
  } // namespace sf
  
  
  #endif // SFML_IMAGELOADER_HPP
  