// Submits any buffers that have currently been queued,
// assuming they are needed based on current queue depth
void sound_xaudio2::submit_needed()
{
XAUDIO2_VOICE_STATE state;
m_sourceVoice->GetState(&state, XAUDIO2_VOICE_NOSAMPLESPLAYED);
std::lock_guard<std::mutex> lock(m_buffer_lock);
// If we have buffers queued into XAudio and our current in-memory buffer
// isn't yet full, there's no need to submit it
if (state.BuffersQueued >= 1 && m_queue.empty())
return;
// We do however want to achieve some kind of minimal latency, so if the queued buffers
// are greater than 2, flush them to re-sync the audio
if (state.BuffersQueued > 2)
{
m_sourceVoice->FlushSourceBuffers();
m_overflows++;
}
// Roll the buffer
roll_buffer();
// Submit the next buffer
submit_next_queued();
}
// Submits any buffers that have currently been queued,
// assuming they are needed based on current queue depth
void sound_xaudio2::submit_needed()
{
XAUDIO2_VOICE_STATE state;
m_sourceVoice->GetState(&state, XAUDIO2_VOICE_NOSAMPLESPLAYED);
// If we have a buffer on the queue, no reason to submit
if (state.BuffersQueued >= 1)
return;
std::lock_guard<std::mutex> lock(m_buffer_lock);
// Roll the buffer
roll_buffer();
// Submit the next buffer
submit_next_queued();
}