198 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			198 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
////////////////////////////////////////////////////////////
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//
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// SFML - Simple and Fast Multimedia Library
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// Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org)
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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_SOUNDFILEFACTORY_HPP
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#define SFML_SOUNDFILEFACTORY_HPP
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include <SFML/Audio/Export.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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class SoundFileReader;
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class SoundFileWriter;
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////////////////////////////////////////////////////////////
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/// \brief Manages and instantiates sound file readers and writers
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///
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////////////////////////////////////////////////////////////
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class SFML_AUDIO_API SoundFileFactory
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{
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public:
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    ////////////////////////////////////////////////////////////
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    /// \brief Register a new reader
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    ///
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    /// \see unregisterReader
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    ///
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    ////////////////////////////////////////////////////////////
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    template <typename T>
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    static void registerReader();
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    ////////////////////////////////////////////////////////////
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    /// \brief Unregister a reader
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    ///
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    /// \see registerReader
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    ///
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    ////////////////////////////////////////////////////////////
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    template <typename T>
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    static void unregisterReader();
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    ////////////////////////////////////////////////////////////
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    /// \brief Register a new writer
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    ///
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    /// \see unregisterWriter
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    ///
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    ////////////////////////////////////////////////////////////
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    template <typename T>
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    static void registerWriter();
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    ////////////////////////////////////////////////////////////
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    /// \brief Unregister a writer
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    ///
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    /// \see registerWriter
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    ///
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    ////////////////////////////////////////////////////////////
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    template <typename T>
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    static void unregisterWriter();
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    ////////////////////////////////////////////////////////////
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    /// \brief Instantiate the right reader for the given file on disk
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    ///
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    /// It's up to the caller to release the returned reader
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    ///
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    /// \param filename Path of the sound file
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    ///
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    /// \return A new sound file reader that can read the given file, or null if no reader can handle it
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    ///
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    /// \see createReaderFromMemory, createReaderFromStream
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    ///
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    ////////////////////////////////////////////////////////////
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    static SoundFileReader* createReaderFromFilename(const std::string& filename);
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    ////////////////////////////////////////////////////////////
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    /// \brief Instantiate the right codec for the given file in memory
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    ///
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    /// It's up to the caller to release the returned reader
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    ///
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    /// \param data        Pointer to the file data in memory
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    /// \param sizeInBytes Total size of the file data, in bytes
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    ///
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    /// \return A new sound file codec that can read the given file, or null if no codec can handle it
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    ///
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    /// \see createReaderFromFilename, createReaderFromStream
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    ///
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    ////////////////////////////////////////////////////////////
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    static SoundFileReader* createReaderFromMemory(const void* data, std::size_t sizeInBytes);
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    ////////////////////////////////////////////////////////////
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    /// \brief Instantiate the right codec for the given file in stream
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    ///
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    /// It's up to the caller to release the returned reader
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    ///
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    /// \param stream Source stream to read from
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    ///
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    /// \return A new sound file codec that can read the given file, or null if no codec can handle it
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    ///
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    /// \see createReaderFromFilename, createReaderFromMemory
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    ///
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    ////////////////////////////////////////////////////////////
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    static SoundFileReader* createReaderFromStream(InputStream& stream);
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    ////////////////////////////////////////////////////////////
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    /// \brief Instantiate the right writer for the given file on disk
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    ///
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    /// It's up to the caller to release the returned writer
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    ///
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    /// \param filename Path of the sound file
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    ///
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    /// \return A new sound file writer that can write given file, or null if no writer can handle it
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    ///
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    ////////////////////////////////////////////////////////////
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    static SoundFileWriter* createWriterFromFilename(const std::string& filename);
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private:
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    ////////////////////////////////////////////////////////////
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    // Types
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    ////////////////////////////////////////////////////////////
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    struct ReaderFactory
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    {
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        bool (*check)(InputStream&);
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        SoundFileReader* (*create)();
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    };
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    typedef std::vector<ReaderFactory> ReaderFactoryArray;
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    struct WriterFactory
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    {
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        bool (*check)(const std::string&);
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        SoundFileWriter* (*create)();
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    };
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    typedef std::vector<WriterFactory> WriterFactoryArray;
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    ////////////////////////////////////////////////////////////
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    // Static member data
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    ////////////////////////////////////////////////////////////
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    static ReaderFactoryArray s_readers; ///< List of all registered readers
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    static WriterFactoryArray s_writers; ///< List of all registered writers
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};
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} // namespace sf
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#include <SFML/Audio/SoundFileFactory.inl>
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#endif // SFML_SOUNDFILEFACTORY_HPP
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////////////////////////////////////////////////////////////
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/// \class sf::SoundFileFactory
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/// \ingroup audio
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///
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/// This class is where all the sound file readers and writers are
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/// registered. You should normally only need to use its registration
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/// and unregistration functions; readers/writers creation and manipulation
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/// are wrapped into the higher-level classes sf::InputSoundFile and
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/// sf::OutputSoundFile.
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///
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/// To register a new reader (writer) use the sf::SoundFileFactory::registerReader
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/// (registerWriter) static function. You don't have to call the unregisterReader
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/// (unregisterWriter) function, unless you want to unregister a format before your
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/// application ends (typically, when a plugin is unloaded).
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///
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/// Usage example:
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/// \code
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/// sf::SoundFileFactory::registerReader<MySoundFileReader>();
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/// sf::SoundFileFactory::registerWriter<MySoundFileWriter>();
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/// \endcode
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///
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/// \see sf::InputSoundFile, sf::OutputSoundFile, sf::SoundFileReader, sf::SoundFileWriter
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///
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////////////////////////////////////////////////////////////
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