cannam@124: #include "portaudiocpp/DirectionSpecificStreamParameters.hxx"
cannam@124: 
cannam@124: #include "portaudiocpp/Device.hxx"
cannam@124: 
cannam@124: namespace portaudio
cannam@124: {
cannam@124: 
cannam@124: 	// -----------------------------------------------------------------------------------
cannam@124: 
cannam@124: 	//////
cannam@124: 	/// Returns a `nil' DirectionSpecificStreamParameters object. This can be used to 
cannam@124: 	/// specify that one direction of a Stream is not required (i.e. when creating 
cannam@124: 	/// a half-duplex Stream). All fields of the null DirectionSpecificStreamParameters 
cannam@124: 	/// object are invalid except for the device and the number of channel, which are set 
cannam@124: 	/// to paNoDevice and 0 respectively.
cannam@124: 	//////
cannam@124: 	DirectionSpecificStreamParameters DirectionSpecificStreamParameters::null()
cannam@124: 	{
cannam@124: 		DirectionSpecificStreamParameters tmp;
cannam@124: 		tmp.paStreamParameters_.device = paNoDevice;
cannam@124: 		tmp.paStreamParameters_.channelCount = 0;
cannam@124: 		return tmp;
cannam@124: 	}
cannam@124: 
cannam@124: 	// -----------------------------------------------------------------------------------
cannam@124: 
cannam@124: 	//////
cannam@124: 	/// Default constructor -- all parameters will be uninitialized.
cannam@124: 	//////
cannam@124: 	DirectionSpecificStreamParameters::DirectionSpecificStreamParameters()
cannam@124: 	{
cannam@124: 	}
cannam@124: 
cannam@124: 	//////
cannam@124: 	/// Constructor which sets all required fields.
cannam@124: 	//////
cannam@124: 	DirectionSpecificStreamParameters::DirectionSpecificStreamParameters(const Device &device, int numChannels, 
cannam@124: 		SampleDataFormat format, bool interleaved, PaTime suggestedLatency, void *hostApiSpecificStreamInfo)
cannam@124: 	{
cannam@124: 		setDevice(device);
cannam@124: 		setNumChannels(numChannels);
cannam@124: 		setSampleFormat(format, interleaved);
cannam@124: 		setSuggestedLatency(suggestedLatency);
cannam@124: 		setHostApiSpecificStreamInfo(hostApiSpecificStreamInfo);
cannam@124: 	}
cannam@124: 
cannam@124: 	// -----------------------------------------------------------------------------------
cannam@124: 
cannam@124: 	void DirectionSpecificStreamParameters::setDevice(const Device &device)
cannam@124: 	{
cannam@124: 		paStreamParameters_.device = device.index();
cannam@124: 	}
cannam@124: 
cannam@124: 	void DirectionSpecificStreamParameters::setNumChannels(int numChannels)
cannam@124: 	{
cannam@124: 		paStreamParameters_.channelCount = numChannels;
cannam@124: 	}
cannam@124: 
cannam@124: 	void DirectionSpecificStreamParameters::setSampleFormat(SampleDataFormat format, bool interleaved)
cannam@124: 	{
cannam@124: 		paStreamParameters_.sampleFormat = static_cast<PaSampleFormat>(format);
cannam@124: 
cannam@124: 		if (!interleaved)
cannam@124: 			paStreamParameters_.sampleFormat |= paNonInterleaved;
cannam@124: 	}
cannam@124: 
cannam@124: 	void DirectionSpecificStreamParameters::setHostApiSpecificSampleFormat(PaSampleFormat format, bool interleaved)
cannam@124: 	{
cannam@124: 		paStreamParameters_.sampleFormat = format;
cannam@124: 
cannam@124: 		paStreamParameters_.sampleFormat |= paCustomFormat;
cannam@124: 
cannam@124: 		if (!interleaved)
cannam@124: 			paStreamParameters_.sampleFormat |= paNonInterleaved;
cannam@124: 	}
cannam@124: 
cannam@124: 	void DirectionSpecificStreamParameters::setSuggestedLatency(PaTime latency)
cannam@124: 	{
cannam@124: 		paStreamParameters_.suggestedLatency = latency;
cannam@124: 	}
cannam@124: 
cannam@124: 	void DirectionSpecificStreamParameters::setHostApiSpecificStreamInfo(void *streamInfo)
cannam@124: 	{
cannam@124: 		paStreamParameters_.hostApiSpecificStreamInfo = streamInfo;
cannam@124: 	}
cannam@124: 
cannam@124: 	// -----------------------------------------------------------------------------------
cannam@124: 
cannam@124: 	PaStreamParameters *DirectionSpecificStreamParameters::paStreamParameters()
cannam@124: 	{
cannam@124: 		if (paStreamParameters_.channelCount > 0 && paStreamParameters_.device != paNoDevice)
cannam@124: 			return &paStreamParameters_;
cannam@124: 		else
cannam@124: 			return NULL;
cannam@124: 	}
cannam@124: 
cannam@124: 	const PaStreamParameters *DirectionSpecificStreamParameters::paStreamParameters() const
cannam@124: 	{
cannam@124: 		if (paStreamParameters_.channelCount > 0 && paStreamParameters_.device != paNoDevice)
cannam@124: 			return &paStreamParameters_;
cannam@124: 		else
cannam@124: 			return NULL;
cannam@124: 	}
cannam@124: 
cannam@124: 	Device &DirectionSpecificStreamParameters::device() const
cannam@124: 	{
cannam@124: 		return System::instance().deviceByIndex(paStreamParameters_.device);
cannam@124: 	}
cannam@124: 
cannam@124: 	int DirectionSpecificStreamParameters::numChannels() const
cannam@124: 	{
cannam@124: 		return paStreamParameters_.channelCount;
cannam@124: 	}
cannam@124: 
cannam@124: 	//////
cannam@124: 	/// Returns the (non host api-specific) sample format, without including 
cannam@124: 	/// the paNonInterleaved flag. If the sample format is host api-spefific, 
cannam@124: 	/// INVALID_FORMAT (0) will be returned.
cannam@124: 	//////
cannam@124: 	SampleDataFormat DirectionSpecificStreamParameters::sampleFormat() const
cannam@124: 	{
cannam@124: 		if (isSampleFormatHostApiSpecific())
cannam@124: 			return INVALID_FORMAT;
cannam@124: 		else
cannam@124: 			return static_cast<SampleDataFormat>(paStreamParameters_.sampleFormat & ~paNonInterleaved);
cannam@124: 	}
cannam@124: 
cannam@124: 	bool DirectionSpecificStreamParameters::isSampleFormatInterleaved() const
cannam@124: 	{
cannam@124: 		return ((paStreamParameters_.sampleFormat & paNonInterleaved) == 0);
cannam@124: 	}
cannam@124: 
cannam@124: 	bool DirectionSpecificStreamParameters::isSampleFormatHostApiSpecific() const
cannam@124: 	{
cannam@124: 		return ((paStreamParameters_.sampleFormat & paCustomFormat) == 0);
cannam@124: 	}
cannam@124: 
cannam@124: 	//////
cannam@124: 	/// Returns the host api-specific sample format, without including any 
cannam@124: 	/// paCustomFormat or paNonInterleaved flags. Will return 0 if the sample format is 
cannam@124: 	/// not host api-specific.
cannam@124: 	//////
cannam@124: 	PaSampleFormat DirectionSpecificStreamParameters::hostApiSpecificSampleFormat() const
cannam@124: 	{
cannam@124: 		if (isSampleFormatHostApiSpecific())
cannam@124: 			return paStreamParameters_.sampleFormat & ~paCustomFormat & ~paNonInterleaved;
cannam@124: 		else
cannam@124: 			return 0;
cannam@124: 	}
cannam@124: 
cannam@124: 	PaTime DirectionSpecificStreamParameters::suggestedLatency() const
cannam@124: 	{
cannam@124: 		return paStreamParameters_.suggestedLatency;
cannam@124: 	}
cannam@124: 
cannam@124: 	void *DirectionSpecificStreamParameters::hostApiSpecificStreamInfo() const
cannam@124: 	{
cannam@124: 		return paStreamParameters_.hostApiSpecificStreamInfo;
cannam@124: 	}
cannam@124: 
cannam@124: 	// -----------------------------------------------------------------------------------
cannam@124: 
cannam@124: } // namespace portaudio