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sf::SoundStream (and sf::Music) is now able to loop seamlessly

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git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/trunk@1018 4e206d99-4929-0410-ac5d-dfc041789085
This commit is contained in:
laurentgom 2009-02-20 21:38:59 +00:00
parent 4a3d6b171c
commit e580c8cd63
2 changed files with 40 additions and 36 deletions
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6
samples/sound/Sound.cpp
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@ -64,11 +64,11 @@ void PlayMusic()
// Loop while the music is playing
while (Music.GetStatus() == sf::Music::Playing)
{
// Display the playing position
std::cout << "\rPlaying... " << std::fixed << std::setprecision(2) << Music.GetPlayingOffset() << " sec ";
// Leave some CPU time for other processes
sf::Sleep(0.1f);
// Display the playing position
std::cout << "\rPlaying... " << std::fixed << std::setprecision(2) << Music.GetPlayingOffset() << " sec ";
}
std::cout << std::endl;
}

70
src/SFML/Audio/SoundStream.cpp
View File

@ -191,6 +191,7 @@ void SoundStream::Run()
{
// Create buffers
ALCheck(alGenBuffers(BuffersCount, myBuffers));
unsigned int EndBuffer = 0xFFFF;
// Fill the queue
bool RequestStop = FillQueue();
@ -203,37 +204,15 @@ void SoundStream::Run()
// The stream has been interrupted !
if (Sound::GetStatus() == Stopped)
{
// User requested to stop
if (RequestStop)
if (!RequestStop)
{
if (myLoop)
{
// The stream is in loop mode : restart it
if (OnStart())
{
mySamplesProcessed = 0;
ClearQueue();
RequestStop = FillQueue();
Sound::Play();
}
else
{
// Restart failed : finish the streaming loop
myIsStreaming = false;
break;
}
}
else
{
// The stream is not in loop mode : finish the streaming loop
myIsStreaming = false;
break;
}
// Just continue
Sound::Play();
}
else
{
// Streaming is not completed : restart the sound
Sound::Play();
// End streaming
myIsStreaming = false;
}
}
@ -241,20 +220,45 @@ void SoundStream::Run()
ALint NbProcessed;
ALCheck(alGetSourcei(Sound::mySource, AL_BUFFERS_PROCESSED, &NbProcessed));
while (NbProcessed-- && !RequestStop)
while (NbProcessed--)
{
// Pop the first unused buffer from the queue
ALuint Buffer;
ALCheck(alSourceUnqueueBuffers(Sound::mySource, 1, &Buffer));
// Retrieve its size and add it to the samples count
ALint Size;
ALCheck(alGetBufferi(Buffer, AL_SIZE, &Size));
mySamplesProcessed += Size / sizeof(Int16);
if (Buffer == EndBuffer)
{
// This was the last buffer: reset the sample count
mySamplesProcessed = 0;
EndBuffer = 0xFFFF;
}
else
{
ALint Size;
ALCheck(alGetBufferi(Buffer, AL_SIZE, &Size));
mySamplesProcessed += Size / sizeof(Int16);
}
// Fill it and push it back into the playing queue
if (FillAndPushBuffer(Buffer))
RequestStop = true;
if (!RequestStop)
{
if (FillAndPushBuffer(Buffer))
{
// User requested to stop: check if we must loop or really stop
if (myLoop && OnStart())
{
// Looping: mark the current buffer as the last one
// (to know when to reset the sample count)
EndBuffer = Buffer;
}
else
{
// Not looping or restart failed: request stop
RequestStop = true;
}
}
}
}
// Leave some time for the other threads if the stream is still playing