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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 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_SOUNDFILEDEFAULT_HPP
#define SFML_SOUNDFILEDEFAULT_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Audio/SoundFile.hpp>
#include <sndfile.h>
namespace sf
{
namespace priv
{
////////////////////////////////////////////////////////////
/// Specialization of SoundFile that can handle a lot of
/// sound formats (see libsndfile homepage for a complete list)
////////////////////////////////////////////////////////////
class SoundFileDefault : public SoundFile
{
public :
////////////////////////////////////////////////////////////
/// Default constructor
///
////////////////////////////////////////////////////////////
SoundFileDefault();
////////////////////////////////////////////////////////////
/// Destructor
///
////////////////////////////////////////////////////////////
~SoundFileDefault();
////////////////////////////////////////////////////////////
/// Check if a given file is supported by this loader
///
/// \param Filename : Path of the file to check
/// \param Read : Is the file opened for reading or writing ?
///
/// \param return True if the loader can handle this file
///
////////////////////////////////////////////////////////////
static bool IsFileSupported(const std::string& Filename, bool Read);
////////////////////////////////////////////////////////////
/// Check if a given file in memory is supported by this loader
///
/// \param Data : Pointer to the file data in memory
/// \param SizeInBytes : Size of the data to load, in bytes
///
/// \param return True if the loader can handle this file
///
////////////////////////////////////////////////////////////
static bool IsFileSupported(const char* Data, std::size_t SizeInBytes);
////////////////////////////////////////////////////////////
/// /see sf::SoundFile::Read
///
////////////////////////////////////////////////////////////
virtual std::size_t Read(Int16* Data, std::size_t NbSamples);
////////////////////////////////////////////////////////////
/// /see sf::SoundFile::Write
///
////////////////////////////////////////////////////////////
virtual void Write(const Int16* Data, std::size_t NbSamples);
private :
////////////////////////////////////////////////////////////
/// /see sf::SoundFile::OpenRead
///
////////////////////////////////////////////////////////////
virtual bool OpenRead(const std::string& Filename, std::size_t& NbSamples, unsigned int& ChannelsCount, unsigned int& SampleRate);
////////////////////////////////////////////////////////////
/// /see sf::SoundFile::OpenRead
///
////////////////////////////////////////////////////////////
virtual bool OpenRead(const char* Data, std::size_t SizeInBytes, std::size_t& NbSamples, unsigned int& ChannelsCount, unsigned int& SampleRate);
////////////////////////////////////////////////////////////
/// /see sf::SoundFile::OpenWrite
///
////////////////////////////////////////////////////////////
virtual bool OpenWrite(const std::string& Filename, unsigned int ChannelsCount, unsigned int SampleRate);
////////////////////////////////////////////////////////////
/// Get the internal format of an audio file according to
/// its filename extension
///
/// \param Filename : Filename to check
///
/// \return Internal format matching the filename (-1 if no match)
///
////////////////////////////////////////////////////////////
static int GetFormatFromFilename(const std::string& Filename);
////////////////////////////////////////////////////////////
/// Functions for implementing custom read and write to memory files
///
////////////////////////////////////////////////////////////
static sf_count_t MemoryGetLength(void* UserData);
static sf_count_t MemoryRead(void* Ptr, sf_count_t Count, void* UserData);
static sf_count_t MemorySeek(sf_count_t Offset, int Whence, void* UserData);
static sf_count_t MemoryTell(void* UserData);
static sf_count_t MemoryWrite(const void* Ptr, sf_count_t Count, void* UserData);
////////////////////////////////////////////////////////////
/// Structure holding data related to memory operations
////////////////////////////////////////////////////////////
struct MemoryInfos
{
const char* DataStart; ///< Pointer to the begining of the data
const char* DataPtr; ///< Pointer to the current read / write position
sf_count_t TotalSize; ///< Total size of the data, in bytes
};
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
SNDFILE* myFile; ///< File descriptor
MemoryInfos myMemory; ///< Memory read / write data
};
} // namespace priv
} // namespace sf
#endif // SFML_SOUNDFILEDEFAULT_HPP
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