DWORD WINAPI Win32DirectSoundAudioDriver::threadProc(LPVOID lpParameter)
{
auto driver = (Win32DirectSoundAudioDriver *)lpParameter;
while (true)
{
driver->mutex->Lock();
int playCursorPos;
driver->buffer->GetCurrentPosition((LPDWORD)&playCursorPos, 0);
int bytesToRender = playCursorPos - driver->oldPlayCursorPos;
if (bytesToRender)
{
if (bytesToRender < 0) bytesToRender += driver->bufferSizeBytes;
short *p1, *p2;
int b1, b2;
driver->buffer->Lock(driver->oldPlayCursorPos, bytesToRender, (LPVOID *)&p1, (LPDWORD)&b1, (LPVOID *)&p2, (LPDWORD)&b2, 0);
driver->renderSamples(p1, b1 / sizeof(short));
if (b2) driver->renderSamples(p2, b2 / sizeof(short));
driver->buffer->Unlock(p1, b1, p2, b2);
driver->oldPlayCursorPos = playCursorPos;
}
driver->mutex->Unlock();
Sleep(3);
}
}
void Mixer::doMix()
{
if (m_sampleBuffer)
{
renderSamples();
}
else
{
renderSilence();
}
}
void Mixer::event()
{
if (m_chips.size())
{
if (m_sampleBuffer)
{
renderSamples();
}
else
{
renderSilence();
}
}
event_context.schedule(*this, MIXER_EVENT_RATE);
}
