C++ (Cpp) IDirectSound8::Release Examples

Example #1

File: main.cpp Project: hoangduit/reactos

BOOL getCurrentChannelConfig()
{
	IDirectSound8* ds;
	DWORD          speakerConfig;
	LPGUID         guid = NULL;

	DirectSoundEnumerate((LPDSENUMCALLBACK)DSEnumProc, (VOID*)&guid);

	if (DirectSoundCreate8(guid, &ds, NULL) != S_OK) {
		return FALSE;
	}

	ds->Initialize(NULL);

	if (ds->GetSpeakerConfig(&speakerConfig) != S_OK) {
		PrintLastError("GetSpeakerConfig()");
		return FALSE;
	}

	if (ds) {
		ds->Release();
	}
	if (guid) {
		LocalFree(guid);
	}

	switch (DSSPEAKER_CONFIG(speakerConfig)) {
		case DSSPEAKER_STEREO:  currentChannelCount = 2; return TRUE;
		case DSSPEAKER_QUAD:    currentChannelCount = 4; return TRUE;
		case DSSPEAKER_5POINT1: currentChannelCount = 6; return TRUE;
		case DSSPEAKER_7POINT1: currentChannelCount = 8; return TRUE;
	}

	return FALSE;
}

Example #2

File: DSoundStream.cpp Project: njh08d/ppsspp

int DSoundAudioBackend::RunThread() {
	if (FAILED(DirectSoundCreate8(0, &ds_, 0))) {
		ds_ = NULL;
		threadData_ = 2;
		return 1;
	}

	ds_->SetCooperativeLevel(window_, DSSCL_PRIORITY);
	if (!CreateBuffer()) {
		ds_->Release();
		ds_ = NULL;
		threadData_ = 2;
		return 1;
	}

	soundSyncEvent_ = CreateEvent(0, false, false, 0);
	InitializeCriticalSection(&soundCriticalSection);

	DWORD num1;
	short *p1;

	dsBuffer_->Lock(0, bufferSize_, (void **)&p1, &num1, 0, 0, 0);

	memset(p1, 0, num1);
	dsBuffer_->Unlock(p1, num1, 0, 0);
	totalRenderedBytes_ = -bufferSize_;

	setCurrentThreadName("DSound");
	currentPos_ = 0;
	lastPos_ = 0;

	dsBuffer_->Play(0,0,DSBPLAY_LOOPING);

	while (!threadData_) {
		EnterCriticalSection(&soundCriticalSection);

		dsBuffer_->GetCurrentPosition((DWORD *)&currentPos_, 0);
		int numBytesToRender = RoundDown128(ModBufferSize(currentPos_ - lastPos_)); 

		if (numBytesToRender >= 256) {
			int numBytesRendered = 4 * (*callback_)(realtimeBuffer_, numBytesToRender >> 2, 16, 44100, 2);
			//We need to copy the full buffer, regardless of what the mixer claims to have filled
			//If we don't do this then the sound will loop if the sound stops and the mixer writes only zeroes
			numBytesRendered = numBytesToRender;
			WriteDataToBuffer(lastPos_, (char *) realtimeBuffer_, numBytesRendered);

			currentPos_ = ModBufferSize(lastPos_ + numBytesRendered);
			totalRenderedBytes_ += numBytesRendered;

			lastPos_ = currentPos_;
		}

		LeaveCriticalSection(&soundCriticalSection);
		WaitForSingleObject(soundSyncEvent_, MAXWAIT);
	}

Example #3

File: audioout.cpp Project: KGE-INC/VirtualDub

void VDAudioOutputDirectSoundW32::ShutdownDirectSound() {
	ShutdownPlayback();

	if (mpDS8) {
		mpDS8->Release();
		mpDS8 = NULL;
	}

	if (mhmodDS) {
		FreeLibrary(mhmodDS);
		mhmodDS = NULL;
	}
}

Example #4

File: main.cpp Project: hoangduit/reactos

BOOL setCurrentChannelConfig()
{
	IDirectSound8* ds;
	DWORD          speakerConfig;
	LPGUID         guid = NULL;

	DirectSoundEnumerate((LPDSENUMCALLBACK)DSEnumProc, (VOID*)&guid);

	if (DirectSoundCreate8(guid, &ds, NULL) != S_OK) {
		PrintLastError("DirectSoundCreate8()");
		return FALSE;
	}


	ds->Initialize(NULL);

	switch (currentChannelCount) {
		case 2: speakerConfig = DSSPEAKER_STEREO;  break;
		case 4: speakerConfig = DSSPEAKER_QUAD;    break;
		case 6: speakerConfig = DSSPEAKER_5POINT1; break;
		case 8: speakerConfig = DSSPEAKER_7POINT1; break;
        default: speakerConfig = DSSPEAKER_STEREO; break;
	}

	if (ds->SetSpeakerConfig(speakerConfig) != S_OK) {
		PrintLastError("SetSpeakerConfig()");
		return FALSE;
	}

	if (ds) {
		ds->Release();
	}
	if (guid) {
		LocalFree(guid);
	}


	return FALSE;
}