void AudioContext::handlePostRenderTasks()
{
ASSERT(isAudioThread());
// Must use a tryLock() here too. Don't worry, the lock will very rarely be contended and this method is called frequently.
// The worst that can happen is that there will be some nodes which will take slightly longer than usual to be deleted or removed
// from the render graph (in which case they'll render silence).
bool mustReleaseLock;
if (tryLock(mustReleaseLock)) {
// Take care of finishing any derefs where the tryLock() failed previously.
handleDeferredFinishDerefs();
// Dynamically clean up nodes which are no longer needed.
derefFinishedSourceNodes();
// Don't delete in the real-time thread. Let the main thread do it.
// Ref-counted objects held by certain AudioNodes may not be thread-safe.
scheduleNodeDeletion();
// Fixup the state of any dirty AudioSummingJunctions and AudioNodeOutputs.
handleDirtyAudioSummingJunctions();
handleDirtyAudioNodeOutputs();
updateAutomaticPullNodes();
if (mustReleaseLock)
unlock();
}
}
void DeferredTaskHandler::handleDeferredTasks()
{
updateChangedChannelCountMode();
handleDirtyAudioSummingJunctions();
handleDirtyAudioNodeOutputs();
updateAutomaticPullNodes();
}
void AudioContext::handlePreRenderTasks()
{
ASSERT(isAudioThread());
// At the beginning of every render quantum, try to update the internal rendering graph state (from main thread changes).
// It's OK if the tryLock() fails, we'll just take slightly longer to pick up the changes.
bool mustReleaseLock;
if (tryLock(mustReleaseLock)) {
// Fixup the state of any dirty AudioSummingJunctions and AudioNodeOutputs.
handleDirtyAudioSummingJunctions();
handleDirtyAudioNodeOutputs();
updateAutomaticPullNodes();
if (mustReleaseLock)
unlock();
}
}