TEST( AudioEngine, Output )
{
AudioEngine::test_program = 2; // help mocked OpenSL IO identify which test is running
AudioEngine::test_successful = false;
// prepare engine environment
SequencerController* controller = new SequencerController();
controller->prepare( 16, 48000, 130.0f, 4, 4 ); // 130 BPM in 4/4 time at 48 kHz sample rate w/buffer size of 16 samples
controller->setTempoNow( 130.0f, 4, 4 );
controller->rewind();
AudioEngine::volume = 1; // QQQ : later on we test mix volume ;)
// create an AudioEvent that holds a simple waveform
// the resulting 16 sample mono buffer contains the following samples:
//
// -1,-1,-1,-1,0,0,0,0,1,1,1,1,0,0,0,0
//
// the event will last for an entire measure in duration
BaseInstrument* instrument = new BaseInstrument();
BaseAudioEvent* event = new BaseAudioEvent( instrument );
AudioBuffer* buffer = new AudioBuffer( 1, 16 );
SAMPLE_TYPE* rawBuffer = buffer->getBufferForChannel( 0 );
for ( int i = 0; i < 4; ++i )
rawBuffer[ i ] = ( SAMPLE_TYPE ) -MAX_PHASE;
for ( int i = 4; i < 8; ++i )
rawBuffer[ i ] = ( SAMPLE_TYPE ) 0;
for ( int i = 8; i < 12; ++i )
rawBuffer[ i ] = ( SAMPLE_TYPE ) MAX_PHASE;
for ( int i = 12; i < 16; ++i )
rawBuffer[ i ] = ( SAMPLE_TYPE ) 0;
event->setBuffer( buffer, false );
event->setLoopeable( true );
event->setSampleLength( AudioEngine::samples_per_bar );
event->positionEvent( 0, 16, 0 );
event->addToSequencer();
// start the engine
controller->setPlaying( true );
AudioEngine::start();
// evaluate results (assertions are made in mock_opensl_io.cpp)
ASSERT_TRUE( AudioEngine::test_successful )
<< "expected test to be successful";
EXPECT_EQ( 3, AudioEngine::test_program )
<< "expected test program to have incremented";
// clean up
controller->setPlaying( false );
AudioEngine::render_iterations = 0;
delete controller;
delete instrument;
delete event;
delete buffer;
}
TEST( BaseAudioEvent, AddRemoveSequencer )
{
BaseInstrument* instrument = new BaseInstrument();
BaseAudioEvent* audioEvent = new BaseAudioEvent( instrument );
// expect AudioEvent not be in any of the event queues of the instrument after construction
bool found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the event list after construction";
found = false;
for ( int i = 0; i < instrument->getLiveEvents()->size(); ++i )
{
if ( instrument->getLiveEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the live event list after construction";
// 1. add the event to the sequencer
audioEvent->addToSequencer();
// expect AudioEvent to be in the sequenced event list, not the live list
found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_TRUE( found )
<< "expected event to be present in the event list after addition";
found = false;
for ( int i = 0; i < instrument->getLiveEvents()->size(); ++i )
{
if ( instrument->getLiveEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the live event list after addition";
// 2. remove the event from the sequencer
audioEvent->removeFromSequencer();
// expect AudioEvent not to be in the sequenced event list anymore
found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the event list after removal";
// 3. add live event to the sequencer
audioEvent->isSequenced = false;
audioEvent->addToSequencer();
// expect AudioEvent to be in the live event list, not the sequenced list
found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected live event not to be present in the sequenced event list after addition";
found = false;
for ( int i = 0; i < instrument->getLiveEvents()->size(); ++i )
{
if ( instrument->getLiveEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_TRUE( found )
<< "expected live event to be present in the live event list after addition";
// 4. remove live event from sequencer
audioEvent->removeFromSequencer();
// expect AudioEvent not be in any of the event queues of the instrument after removal
found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the event list after removal";
found = false;
for ( int i = 0; i < instrument->getLiveEvents()->size(); ++i )
{
if ( instrument->getLiveEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the live event list after removal";
delete audioEvent;
delete instrument;
}