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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2008 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.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Audio/Music.hpp>
#include <SFML/Audio/OpenAL.hpp>
#include <SFML/Audio/SoundFile.hpp>
#include <fstream>
#include <iostream>
namespace sf
{
////////////////////////////////////////////////////////////
/// Construct the music with a buffer size
////////////////////////////////////////////////////////////
Music::Music(std::size_t BufferSize) :
myFile (NULL),
myLoop (false),
myDuration(0.f),
mySamples (BufferSize)
{
}
////////////////////////////////////////////////////////////
/// Destructor
////////////////////////////////////////////////////////////
Music::~Music()
{
delete myFile;
}
////////////////////////////////////////////////////////////
/// Open a music file (doesn't play it -- call Play() for that)
////////////////////////////////////////////////////////////
bool Music::OpenFromFile(const std::string& Filename)
{
// Create the sound file implementation, and open it in read mode
delete myFile;
myFile = priv::SoundFile::CreateRead(Filename);
if (!myFile)
{
std::cerr << "Failed to open \"" << Filename << "\" for reading" << std::endl;
return false;
}
// Compute the duration
myDuration = static_cast<float>(myFile->GetSamplesCount()) / myFile->GetSampleRate() / myFile->GetChannelsCount();
// Initialize the stream
Initialize(myFile->GetChannelsCount(), myFile->GetSampleRate());
return true;
}
////////////////////////////////////////////////////////////
/// Open a music file from memory (doesn't play it -- call Play() for that)
////////////////////////////////////////////////////////////
bool Music::OpenFromMemory(const char* Data, std::size_t SizeInBytes)
{
// Create the sound file implementation, and open it in read mode
delete myFile;
myFile = priv::SoundFile::CreateRead(Data, SizeInBytes);
if (!myFile)
{
std::cerr << "Failed to open music from memory for reading" << std::endl;
return false;
}
// Compute the duration
myDuration = static_cast<float>(myFile->GetSamplesCount()) / myFile->GetSampleRate();
// Initialize the stream
Initialize(myFile->GetChannelsCount(), myFile->GetSampleRate());
return true;
}
////////////////////////////////////////////////////////////
/// Set the music loop state
////////////////////////////////////////////////////////////
void Music::SetLoop(bool Loop)
{
myLoop = Loop;
}
////////////////////////////////////////////////////////////
/// Tell whether or not the music is looping
////////////////////////////////////////////////////////////
bool Music::GetLoop() const
{
return myLoop;
}
////////////////////////////////////////////////////////////
/// /see SoundStream::OnStart
////////////////////////////////////////////////////////////
bool Music::OnStart()
{
return myFile->Restart();
}
////////////////////////////////////////////////////////////
/// /see SoundStream::OnGetData
////////////////////////////////////////////////////////////
bool Music::OnGetData(SoundStream::Chunk& Data)
{
// Fill the chunk parameters
Data.Samples = &mySamples[0];
Data.NbSamples = myFile->Read(&mySamples[0], mySamples.size());
// Check if we have reached the end of the audio file
if (Data.NbSamples < mySamples.size())
{
// Check if we must loop
if (myLoop)
{
if (OnStart())
{
// We succeeded to restart the audio playback
Data.NbSamples += myFile->Read(&mySamples[Data.NbSamples], mySamples.size() - Data.NbSamples);
return true;
}
}
// No more audio samples to read : we stop the playback
return false;
}
// End of audio file has not been reached, continue playback
return true;
}
////////////////////////////////////////////////////////////
/// Get the sound duration
////////////////////////////////////////////////////////////
float Music::GetDuration() const
{
return myDuration;
}
} // namespace sf
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