SoundSourcePtr SoundManager::createSoundSource(const std::string& filename)
{
SoundSourcePtr source;
try {
auto it = m_buffers.find(filename);
if(it != m_buffers.end()) {
source = SoundSourcePtr(new SoundSource);
source->setBuffer(it->second);
} else {
SoundFilePtr soundFile = SoundFile::loadSoundFile(filename);
if(!soundFile)
return nullptr;
if(soundFile->getSize() <= MAX_CACHE_SIZE) {
source = SoundSourcePtr(new SoundSource);
SoundBufferPtr buffer = SoundBufferPtr(new SoundBuffer);
buffer->fillBuffer(soundFile);
source->setBuffer(buffer);
m_buffers[filename] = buffer;
g_logger.warning(stdext::format("uncached sound '%s' requested to be played", filename));
} else {
StreamSoundSourcePtr streamSource(new StreamSoundSource);
streamSource->setSoundFile(soundFile);
source = streamSource;
#if defined __linux && !defined OPENGL_ES
// due to OpenAL implementation bug, stereo buffers are always downmixed to mono on linux systems
// this is hack to work around the issue
// solution taken from http://opensource.creative.com/pipermail/openal/2007-April/010355.html
if(soundFile->getSampleFormat() == AL_FORMAT_STEREO16) {
CombinedSoundSourcePtr combinedSource(new CombinedSoundSource);
streamSource->downMix(StreamSoundSource::DownMixLeft);
streamSource->setRelative(true);
streamSource->setPosition(Point(-128, 0));
combinedSource->addSource(streamSource);
streamSource = StreamSoundSourcePtr(new StreamSoundSource);
streamSource->setSoundFile(SoundFile::loadSoundFile(filename));
streamSource->downMix(StreamSoundSource::DownMixRight);
streamSource->setRelative(true);
streamSource->setPosition(Point(128,0));
combinedSource->addSource(streamSource);
source = combinedSource;
}
#endif
}
}
} catch(std::exception& e) {
g_logger.error(stdext::format("failed to load sound source: '%s'", e.what()));
return nullptr;
}
return source;
}
SoundSourcePtr
SoundChannel::prepare(const Pathname& filename,
OpenALSoundSourceType type)
{
SoundSourcePtr source = m_sound_manager.create_sound_source(filename, *this, type);
if (!source)
{
std::cout << "SourceChannel::prepare: Couldn't load " << filename << std::endl;
return SoundSourcePtr(new DummySoundSource());
}
else
{
source->update_gain();
m_sound_sources.push_back(SoundSourcePtr(source));
return source;
}
}
SoundSourcePtr
SoundChannel::prepare(std::auto_ptr<SoundFile> sound_file,
OpenALSoundSourceType type)
{
switch(type)
{
case kStreamSoundSource:
{
SoundSourcePtr source(new StreamSoundSource(*this, sound_file));
source->update_gain();
m_sound_sources.push_back(SoundSourcePtr(source));
return source;
}
break;
case kStaticSoundSource:
// FIXME: not implemented
assert(!"not implemented");
break;
default:
assert(!"never reached");
}
}
SoundSourcePtr SoundManager::createSoundSource(const std::string& filename)
{
SoundSourcePtr source;
try {
auto it = m_buffers.find(filename);
if(it != m_buffers.end()) {
source = SoundSourcePtr(new SoundSource);
source->setBuffer(it->second);
} else {
#if defined __linux && !defined OPENGL_ES
// due to OpenAL implementation bug, stereo buffers are always downmixed to mono on linux systems
// this is hack to work around the issue
// solution taken from http://opensource.creative.com/pipermail/openal/2007-April/010355.html
CombinedSoundSourcePtr combinedSource(new CombinedSoundSource);
StreamSoundSourcePtr streamSource;
streamSource = StreamSoundSourcePtr(new StreamSoundSource);
streamSource->downMix(StreamSoundSource::DownMixLeft);
streamSource->setRelative(true);
streamSource->setPosition(Point(-128, 0));
combinedSource->addSource(streamSource);
m_streamFiles[streamSource] = g_asyncDispatcher.schedule([=]() -> SoundFilePtr {
stdext::timer a;
try {
return SoundFile::loadSoundFile(filename);
} catch(std::exception& e) {
g_logger.error(e.what());
return nullptr;
}
});
streamSource = StreamSoundSourcePtr(new StreamSoundSource);
streamSource->downMix(StreamSoundSource::DownMixRight);
streamSource->setRelative(true);
streamSource->setPosition(Point(128,0));
combinedSource->addSource(streamSource);
m_streamFiles[streamSource] = g_asyncDispatcher.schedule([=]() -> SoundFilePtr {
try {
return SoundFile::loadSoundFile(filename);
} catch(std::exception& e) {
g_logger.error(e.what());
return nullptr;
}
});
source = combinedSource;
#else
StreamSoundSourcePtr streamSource(new StreamSoundSource);
m_streamFiles[streamSource] = g_asyncDispatcher.schedule([=]() -> SoundFilePtr {
try {
return SoundFile::loadSoundFile(filename);
} catch(std::exception& e) {
g_logger.error(e.what());
return nullptr;
}
});
source = streamSource;
#endif
}
} catch(std::exception& e) {
g_logger.error(stdext::format("failed to load sound source: '%s'", e.what()));
return nullptr;
}
return source;
}
