void QOpenSLESAudioOutput::start(QIODevice *device)
{
Q_ASSERT(device);
if (!preparePlayer())
return;
m_pullMode = true;
m_audioSource = device;
setState(QAudio::ActiveState);
setError(QAudio::NoError);
// Attempt to fill buffers first.
for (int i = 0; i != BUFFER_COUNT; ++i) {
const int index = i * m_bufferSize;
const qint64 readSize = m_audioSource->read(m_buffers + index, m_bufferSize);
if (readSize && SL_RESULT_SUCCESS != (*m_bufferQueueItf)->Enqueue(m_bufferQueueItf,
m_buffers + index,
readSize)) {
setError(QAudio::FatalError);
destroyPlayer();
return;
}
m_processedBytes += readSize;
}
// Change the state to playing.
// We need to do this after filling the buffers or processedBytes might get corrupted.
startPlayer();
}
QIODevice *QOpenSLESAudioOutput::start()
{
if (!preparePlayer())
return Q_NULLPTR;
m_pullMode = false;
m_audioSource = new SLIODevicePrivate(this);
m_audioSource->open(QIODevice::WriteOnly | QIODevice::Unbuffered);
// Change the state to playing
startPlayer();
setState(QAudio::IdleState);
return m_audioSource;
}
QIODevice *QOpenSLESAudioOutput::start()
{
destroyPlayer();
m_pullMode = false;
if (!preparePlayer())
return Q_NULLPTR;
m_audioSource = new SLIODevicePrivate(this);
m_audioSource->open(QIODevice::WriteOnly | QIODevice::Unbuffered);
// Change the state to playing
if (SL_RESULT_SUCCESS != (*m_playItf)->SetPlayState(m_playItf, SL_PLAYSTATE_PLAYING)) {
setError(QAudio::FatalError);
destroyPlayer();
}
setState(QAudio::IdleState);
return m_audioSource;
}
// this is the main function, you don't use main(), as this is handled different
// on some platforms
int run(int argc, char *argv[]) {
SGEGAMESTATEMANAGER *manager;
SGEGAMESTATE *mainstate;
MainStateData data;
// initialize engine and set up resolution and depth
sgeInit(NOAUDIO,NOJOYSTICK);
sgeOpenScreen("Tilemap Demo",640,480,32,NOFULLSCREEN);
sgeHideMouse();
// add a new gamestate. you will usually have to add different gamestates
// like 'main menu', 'game loop', 'load screen', etc.
mainstate = sgeGameStateNew();
mainstate->onRedraw = onRedraw;
mainstate->onKeyDown = onKeyDown;
mainstate->onKeyUp = onKeyUp;
mainstate->data = &data;
// now initialize tile map
prepareTilemap( &data );
// and the player sprite
preparePlayer( &data );
// and the rest of the variables
initialize( &data );
// now finally create the gamestate manager and change to the only state
// we defined, which is the on_redraw function
manager = sgeGameStateManagerNew();
sgeGameStateManagerChange(manager, mainstate);
// start the game running with 30 frames per seconds
sgeGameStateManagerRun(manager, 30);
// close the screen and quit
sgeCloseScreen();
return 0;
}
