void QSoundEffectPrivate::setSource(const QUrl &url)
{
if (url.isEmpty()) {
m_source = QUrl();
unloadSample();
return;
}
m_source = url;
if (m_networkAccessManager == 0)
m_networkAccessManager = new QNetworkAccessManager(this);
m_stream = m_networkAccessManager->get(QNetworkRequest(m_source));
unloadSample();
loadSample();
}
void AudioSDLMixer::deinit()
{
stopMusic();
for (unsigned i=0;i<samples.size();++i)
unloadSample(i);
if ( audio_open ) {
Mix_CloseAudio();
SDL_QuitSubSystem(SDL_INIT_AUDIO);
audio_open = 0;
}
}
void QSampleCache::setCapacity(qint64 capacity)
{
QMutexLocker locker(&m_mutex);
if (m_capacity == capacity)
return;
#ifdef QT_SAMPLECACHE_DEBUG
qDebug() << "QSampleCache: capacity changes from " << m_capacity << "to " << capacity;
#endif
if (m_capacity > 0 && capacity <= 0) { //memory management strategy changed
for (QMap<QUrl, QSample*>::iterator it = m_samples.begin(); it != m_samples.end();) {
QSample* sample = *it;
if (sample->m_ref == 0) {
unloadSample(sample);
it = m_samples.erase(it);
} else
it++;
}
}
m_capacity = capacity;
refresh(0);
}
// Called in both threads
void QSampleCache::refresh(qint64 usageChange)
{
QMutexLocker locker(&m_mutex);
m_usage += usageChange;
if (m_capacity <= 0 || m_usage <= m_capacity)
return;
#ifdef QT_SAMPLECACHE_DEBUG
qint64 recoveredSize = 0;
#endif
//free unused samples to keep usage under capacity limit.
for (QMap<QUrl, QSample*>::iterator it = m_samples.begin(); it != m_samples.end();) {
QSample* sample = *it;
if (sample->m_ref > 0) {
++it;
continue;
}
#ifdef QT_SAMPLECACHE_DEBUG
recoveredSize += sample->m_soundData.size();
#endif
unloadSample(sample);
it = m_samples.erase(it);
if (m_usage <= m_capacity)
return;
}
#ifdef QT_SAMPLECACHE_DEBUG
qDebug() << "QSampleCache: refresh(" << usageChange
<< ") recovered size =" << recoveredSize
<< "new usage =" << m_usage;
#endif
if (m_usage > m_capacity)
qWarning() << "QSampleCache: usage[" << m_usage << " out of limit[" << m_capacity << "]";
}
QSoundEffectPrivate::~QSoundEffectPrivate()
{
m_reply->deleteLater();
unloadSample();
}
