static void
XAUDIO2_CloseDevice(_THIS)
{
if (_this->hidden != NULL) {
IXAudio2 *ixa2 = _this->hidden->ixa2;
IXAudio2SourceVoice *source = _this->hidden->source;
IXAudio2MasteringVoice *mastering = _this->hidden->mastering;
if (source != NULL) {
source->Stop();
source->FlushSourceBuffers();
source->DestroyVoice();
}
if (ixa2 != NULL) {
ixa2->StopEngine();
}
if (mastering != NULL) {
mastering->DestroyVoice();
}
if (ixa2 != NULL) {
ixa2->Release();
}
SDL_free(_this->hidden->mixbuf);
if (_this->hidden->semaphore != NULL) {
CloseHandle(_this->hidden->semaphore);
}
SDL_free(_this->hidden);
_this->hidden = NULL;
}
}
void GameAudio::stopMusic(MusicTypes musicType)
{
if (musicRegistrationMap[musicType] == true)
{
IXAudio2SourceVoice *sourceVoice = musicMap[musicType];
sourceVoice->Stop();
sourceVoice->FlushSourceBuffers();
}
}
void XAudio2_Output::reset()
{
if( !initialized || failed ) return;
if( playing ) {
HRESULT hr = sVoice->Stop( 0 );
ASSERT( hr == S_OK );
}
sVoice->FlushSourceBuffers();
sVoice->Start( 0 );
playing = true;
}
static void
XAUDIO2_PlayDevice(_THIS)
{
XAUDIO2_BUFFER buffer;
Uint8 *mixbuf = _this->hidden->mixbuf;
Uint8 *nextbuf = _this->hidden->nextbuf;
const int mixlen = _this->hidden->mixlen;
IXAudio2SourceVoice *source = _this->hidden->source;
HRESULT result = S_OK;
if (!_this->enabled) { /* shutting down? */
return;
}
/* Submit the next filled buffer */
SDL_zero(buffer);
buffer.AudioBytes = mixlen;
buffer.pAudioData = nextbuf;
buffer.pContext = _this;
buffer.LoopCount = 1;
if (nextbuf == mixbuf) {
nextbuf += mixlen;
} else {
nextbuf = mixbuf;
}
_this->hidden->nextbuf = nextbuf;
result = source->SubmitSourceBuffer(&buffer);
if (result == XAUDIO2_E_DEVICE_INVALIDATED) {
/* !!! FIXME: possibly disconnected or temporary lost. Recover? */
}
if (result != S_OK) { /* uhoh, panic! */
source->FlushSourceBuffers();
_this->enabled = 0;
}
}
//the streaming thread procedure
DWORD WINAPI StreamProc(LPVOID pContext)
{
//required by XAudio2
CoInitializeEx(NULL, COINIT_MULTITHREADED);
if(pContext == NULL)
{
CoUninitialize();
return -1;
}
StreamContext* sc = (StreamContext*)pContext;
//instantiate the voice's callback class
StreamingVoiceCallback callback;
//load a file for streaming, non-buffered disk reads (no system cacheing)
StreamingWave inFile;
if(!inFile.load(sc->filename))
{
SetEvent(sc->VoiceLoadEvent);
CoUninitialize();
return -3;
}
//create the voice
IXAudio2SourceVoice* source = NULL;
if(FAILED(XAudio2->CreateSourceVoice(&source, &inFile.waveFormat.Format, 0, 2.0f, &callback)))
{
SetEvent(sc->VoiceLoadEvent);
CoUninitialize();
return -5;
}
//fill and queue the maximum number of buffers (except the one needed for reading new wave data)
bool somethingsWrong = false;
XAUDIO2_VOICE_STATE voiceState = {0};
source->GetState(&voiceState);
while(voiceState.BuffersQueued < STREAMINGWAVE_BUFFER_COUNT - 1 && !somethingsWrong)
{
//read and fill the next buffer to present
switch(inFile.prepare())
{
case StreamingWave::PR_EOF:
//if end of file, loop the file read
inFile.resetFile(); //intentionally fall-through to loop sound
case StreamingWave::PR_SUCCESS:
//present the next available buffer
inFile.swap();
//submit another buffer
source->SubmitSourceBuffer(inFile.buffer());
source->GetState(&voiceState);
break;
case StreamingWave::PR_FAILURE:
somethingsWrong = true;
break;
}
}
//return the created voice through the context pointer
sc->pVoice = &source;
//signal that the voice has prepared for streaming, and ready to start
SetEvent(sc->VoiceLoadEvent);
//group the events for the Wait function
HANDLE Events[2] = {callback.BufferEndEvent, QuitEvent};
bool quitting = false;
while(!quitting)
{
//wait until either the source voice is ready for another buffer, or the abort signal is set
DWORD eventFired = WaitForMultipleObjects(2, Events, FALSE, INFINITE);
switch(eventFired)
{
case 0: //buffer ended event for source voice
//reset the event manually
ResetEvent(Events[0]);
//make sure there's a full number of buffers
source->GetState(&voiceState);
while(voiceState.BuffersQueued < STREAMINGWAVE_BUFFER_COUNT - 1 && !somethingsWrong)
{
//read and fill the next buffer to present
switch(inFile.prepare())
{
case StreamingWave::PR_EOF:
//if end of file, loop the file read
inFile.resetFile(); //intentionally fall-through to loop sound
case StreamingWave::PR_SUCCESS:
//present the next available buffer
inFile.swap();
//submit another buffer
source->SubmitSourceBuffer(inFile.buffer());
source->GetState(&voiceState);
break;
case StreamingWave::PR_FAILURE:
somethingsWrong = true;
break;
}
}
break;
default: //something's wrong...
quitting = true;
}
}
//stop and destroy the voice
source->Stop();
source->FlushSourceBuffers();
source->DestroyVoice();
//close the streaming wave file;
//this is done automatically in the class destructor,
//so this is redundant
inFile.close();
//cleanup
CoUninitialize();
return 0;
}
void Sound::playSoundEffect(SoundEffect effect, X3DAUDIO_EMITTER* emit)
{
IXAudio2SourceVoice* voice = getSFXVoice();
voice->FlushSourceBuffers();
switch (effect) {
case SFX_LASER:
{
voice->SubmitSourceBuffer(laserBufferDetails, laserWMABuffer);
break;
}
case SFX_CRASH:
{
voice->SubmitSourceBuffer(crashBufferDetails, crashWMABuffer);
break;
}
case SFX_BOOST:
{
voice->SubmitSourceBuffer(boostBufferDetails, boostWMABuffer);
break;
}
case SFX_DROPMINE:
{
voice->SubmitSourceBuffer(dropmineBufferDetails, dropmineWMABuffer);
break;
}
case SFX_SCREAM:
{
// Now pick one of the three screams randomly
int choice = std::rand() % 3;
voice->SetVolume(2.0f);
switch (choice) {
case 0: voice->SubmitSourceBuffer(scream1BufferDetails, scream1WMABuffer);
break;
case 1: voice->SubmitSourceBuffer(scream2BufferDetails, scream2WMABuffer);
break;
case 2: voice->SubmitSourceBuffer(scream3BufferDetails, scream3WMABuffer);
break;
default:
voice->SubmitSourceBuffer(scream1BufferDetails, scream1WMABuffer);
}
break;
}
case SFX_CAREXPLODE:
{
voice->SetVolume(2.0f);
voice->SubmitSourceBuffer(carexplodeBufferDetails, carexplodeWMABuffer);
break;
}
case SFX_EXPLOSION:
{
voice->SubmitSourceBuffer(explosionBufferDetails, explosionWMABuffer);
break;
}
case SFX_BEEP:
{
voice->SubmitSourceBuffer(beepBufferDetails, beepWMABuffer);
break;
}
case SFX_ROCKETLAUNCH:
{
voice->SubmitSourceBuffer(rocketlaunchBufferDetails, rocketlaunchWMABuffer);
break;
}
case SFX_PICKUP:
{
voice->SetVolume(2.0f);
voice->SubmitSourceBuffer(pickupBufferDetails, pickupWMABuffer);
break;
}
case SFX_SELECT:
{
voice->SubmitSourceBuffer(selectBufferDetails, selectWMABuffer);
break;
}
case SFX_SHOTGUN:
{
voice->SetVolume(2.5f);
voice->SubmitSourceBuffer(shotgunBufferDetails, shotgunWMABuffer);
break;
}
case SFX_TAKENLEAD:
{
voice->SubmitSourceBuffer(takenleadBufferDetails, takenleadWMABuffer);
break;
}
case SFX_LOSTLEAD:
{
voice->SubmitSourceBuffer(lostleadBufferDetails, lostleadWMABuffer);
break;
}
case SFX_NOAMMO:
{
voice->SubmitSourceBuffer(noammoBufferDetails, noammoWMABuffer);
break;
}
case SFX_ONE:
{
voice->SubmitSourceBuffer(oneBufferDetails, oneWMABuffer);
break;
}
case SFX_TWO:
{
voice->SubmitSourceBuffer(twoBufferDetails, twoWMABuffer);
break;
}
case SFX_THREE:
{
voice->SubmitSourceBuffer(threeBufferDetails, threeWMABuffer);
break;
}
default:
break;
}
X3DAudioCalculate(audio3DHandle, &listener, emit,
X3DAUDIO_CALCULATE_MATRIX | X3DAUDIO_CALCULATE_DOPPLER | X3DAUDIO_CALCULATE_LPF_DIRECT,
&dspSettings);
voice->SetOutputMatrix(smSFX, 1, details.OutputFormat.Format.nChannels, dspSettings.pMatrixCoefficients);
voice->SetFrequencyRatio(dspSettings.DopplerFactor);
XAUDIO2_FILTER_PARAMETERS filterParameters = { LowPassFilter, 2.0f * sinf(X3DAUDIO_PI/6.0f * dspSettings.LPFDirectCoefficient), 1.0f };
voice->SetFilterParameters(&filterParameters);
voice->Start();
}
