144 lines
5.5 KiB
C++
144 lines
5.5 KiB
C++
////////////////////////////////////////////////////////////
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//
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// SFML - Simple and Fast Multimedia Library
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// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
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//
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// This software is provided 'as-is', without any express or implied warranty.
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// In no event will the authors be held liable for any damages arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it freely,
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// subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented;
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// you must not claim that you wrote the original software.
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// If you use this software in a product, an acknowledgment
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// in the product documentation would be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such,
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// and must not be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source distribution.
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//
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////////////////////////////////////////////////////////////
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#ifndef SFML_IMAGELOADER_HPP
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#define SFML_IMAGELOADER_HPP
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include <SFML/System/NonCopyable.hpp>
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#include <string>
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#include <vector>
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namespace sf
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{
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class InputStream;
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namespace priv
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{
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////////////////////////////////////////////////////////////
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/// \brief Load/save image files
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///
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////////////////////////////////////////////////////////////
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class ImageLoader : NonCopyable
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{
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public :
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////////////////////////////////////////////////////////////
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/// \brief Get the unique instance of the class
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///
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/// \return Reference to the ImageLoader instance
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///
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////////////////////////////////////////////////////////////
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static ImageLoader& getInstance();
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////////////////////////////////////////////////////////////
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/// \brief Load an image from a file on disk
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///
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/// \param filename Path of image file to load
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/// \param pixels Array of pixels to fill with loaded image
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/// \param width Width of loaded image, in pixels
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/// \param height Height of loaded image, in pixels
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///
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/// \return True if loading was successful
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///
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////////////////////////////////////////////////////////////
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bool loadImageFromFile(const std::string& filename, std::vector<Uint8>& pixels, unsigned int& width, unsigned int& height);
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////////////////////////////////////////////////////////////
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/// \brief Load an image from a file in memory
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///
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/// \param data Pointer to the file data in memory
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/// \param size Size of the data to load, in bytes
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/// \param pixels Array of pixels to fill with loaded image
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/// \param width Width of loaded image, in pixels
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/// \param height Height of loaded image, in pixels
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///
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/// \return True if loading was successful
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///
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////////////////////////////////////////////////////////////
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bool loadImageFromMemory(const void* data, std::size_t size, std::vector<Uint8>& pixels, unsigned int& width, unsigned int& height);
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////////////////////////////////////////////////////////////
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/// \brief Load an image from a custom stream
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///
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/// \param stream Source stream to read from
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/// \param pixels Array of pixels to fill with loaded image
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/// \param width Width of loaded image, in pixels
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/// \param height Height of loaded image, in pixels
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///
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/// \return True if loading was successful
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///
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////////////////////////////////////////////////////////////
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bool loadImageFromStream(InputStream& stream, std::vector<Uint8>& pixels, unsigned int& width, unsigned int& height);
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////////////////////////////////////////////////////////////
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/// \bref Save an array of pixels as an image file
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///
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/// \param filename Path of image file to save
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/// \param pixels Array of pixels to save to image
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/// \param width Width of image to save, in pixels
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/// \param height Height of image to save, in pixels
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///
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/// \return True if saving was successful
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///
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////////////////////////////////////////////////////////////
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bool saveImageToFile(const std::string& filename, const std::vector<Uint8>& pixels, unsigned int width, unsigned int height);
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private :
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////////////////////////////////////////////////////////////
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/// \brief Default constructor
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///
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////////////////////////////////////////////////////////////
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ImageLoader();
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////////////////////////////////////////////////////////////
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/// \brief Destructor
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///
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////////////////////////////////////////////////////////////
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~ImageLoader();
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////////////////////////////////////////////////////////////
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/// \brief Save an image file in JPEG format
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///
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/// \param filename Path of image file to save
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/// \param pixels Array of pixels to save to image
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/// \param width Width of image to save, in pixels
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/// \param height Height of image to save, in pixels
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///
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/// \return True if saving was successful
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///
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////////////////////////////////////////////////////////////
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bool writeJpg(const std::string& filename, const std::vector<Uint8>& pixels, unsigned int width, unsigned int height);
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};
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} // namespace priv
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} // namespace sf
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#endif // SFML_IMAGELOADER_HPP
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