From 37c97e345d12f95dde44e1d1a4c2f2aadd4615bc Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Thu, 25 Aug 2022 14:54:53 -0500
Subject: add initial structure

---
 .../DirectionSpecificStreamParameters.cxx          | 163 +++++++++++++++++++++
 1 file changed, 163 insertions(+)
 create mode 100644 portaudio/bindings/cpp/source/portaudiocpp/DirectionSpecificStreamParameters.cxx

(limited to 'portaudio/bindings/cpp/source/portaudiocpp/DirectionSpecificStreamParameters.cxx')

diff --git a/portaudio/bindings/cpp/source/portaudiocpp/DirectionSpecificStreamParameters.cxx b/portaudio/bindings/cpp/source/portaudiocpp/DirectionSpecificStreamParameters.cxx
new file mode 100644
index 0000000..68453d0
--- /dev/null
+++ b/portaudio/bindings/cpp/source/portaudiocpp/DirectionSpecificStreamParameters.cxx
@@ -0,0 +1,163 @@
+#include "portaudiocpp/DirectionSpecificStreamParameters.hxx"
+
+#include "portaudiocpp/Device.hxx"
+
+namespace portaudio
+{
+
+	// -----------------------------------------------------------------------------------
+
+	//////
+	/// Returns a `nil' DirectionSpecificStreamParameters object. This can be used to 
+	/// specify that one direction of a Stream is not required (i.e. when creating 
+	/// a half-duplex Stream). All fields of the null DirectionSpecificStreamParameters 
+	/// object are invalid except for the device and the number of channel, which are set 
+	/// to paNoDevice and 0 respectively.
+	//////
+	DirectionSpecificStreamParameters DirectionSpecificStreamParameters::null()
+	{
+		DirectionSpecificStreamParameters tmp;
+		tmp.paStreamParameters_.device = paNoDevice;
+		tmp.paStreamParameters_.channelCount = 0;
+		return tmp;
+	}
+
+	// -----------------------------------------------------------------------------------
+
+	//////
+	/// Default constructor -- all parameters will be uninitialized.
+	//////
+	DirectionSpecificStreamParameters::DirectionSpecificStreamParameters()
+	{
+	}
+
+	//////
+	/// Constructor which sets all required fields.
+	//////
+	DirectionSpecificStreamParameters::DirectionSpecificStreamParameters(const Device &device, int numChannels, 
+		SampleDataFormat format, bool interleaved, PaTime suggestedLatency, void *hostApiSpecificStreamInfo)
+	{
+		setDevice(device);
+		setNumChannels(numChannels);
+		setSampleFormat(format, interleaved);
+		setSuggestedLatency(suggestedLatency);
+		setHostApiSpecificStreamInfo(hostApiSpecificStreamInfo);
+	}
+
+	// -----------------------------------------------------------------------------------
+
+	void DirectionSpecificStreamParameters::setDevice(const Device &device)
+	{
+		paStreamParameters_.device = device.index();
+	}
+
+	void DirectionSpecificStreamParameters::setNumChannels(int numChannels)
+	{
+		paStreamParameters_.channelCount = numChannels;
+	}
+
+	void DirectionSpecificStreamParameters::setSampleFormat(SampleDataFormat format, bool interleaved)
+	{
+		paStreamParameters_.sampleFormat = static_cast<PaSampleFormat>(format);
+
+		if (!interleaved)
+			paStreamParameters_.sampleFormat |= paNonInterleaved;
+	}
+
+	void DirectionSpecificStreamParameters::setHostApiSpecificSampleFormat(PaSampleFormat format, bool interleaved)
+	{
+		paStreamParameters_.sampleFormat = format;
+
+		paStreamParameters_.sampleFormat |= paCustomFormat;
+
+		if (!interleaved)
+			paStreamParameters_.sampleFormat |= paNonInterleaved;
+	}
+
+	void DirectionSpecificStreamParameters::setSuggestedLatency(PaTime latency)
+	{
+		paStreamParameters_.suggestedLatency = latency;
+	}
+
+	void DirectionSpecificStreamParameters::setHostApiSpecificStreamInfo(void *streamInfo)
+	{
+		paStreamParameters_.hostApiSpecificStreamInfo = streamInfo;
+	}
+
+	// -----------------------------------------------------------------------------------
+
+	PaStreamParameters *DirectionSpecificStreamParameters::paStreamParameters()
+	{
+		if (paStreamParameters_.channelCount > 0 && paStreamParameters_.device != paNoDevice)
+			return &paStreamParameters_;
+		else
+			return NULL;
+	}
+
+	const PaStreamParameters *DirectionSpecificStreamParameters::paStreamParameters() const
+	{
+		if (paStreamParameters_.channelCount > 0 && paStreamParameters_.device != paNoDevice)
+			return &paStreamParameters_;
+		else
+			return NULL;
+	}
+
+	Device &DirectionSpecificStreamParameters::device() const
+	{
+		return System::instance().deviceByIndex(paStreamParameters_.device);
+	}
+
+	int DirectionSpecificStreamParameters::numChannels() const
+	{
+		return paStreamParameters_.channelCount;
+	}
+
+	//////
+	/// Returns the (non host api-specific) sample format, without including 
+	/// the paNonInterleaved flag. If the sample format is host api-spefific, 
+	/// INVALID_FORMAT (0) will be returned.
+	//////
+	SampleDataFormat DirectionSpecificStreamParameters::sampleFormat() const
+	{
+		if (isSampleFormatHostApiSpecific())
+			return INVALID_FORMAT;
+		else
+			return static_cast<SampleDataFormat>(paStreamParameters_.sampleFormat & ~paNonInterleaved);
+	}
+
+	bool DirectionSpecificStreamParameters::isSampleFormatInterleaved() const
+	{
+		return ((paStreamParameters_.sampleFormat & paNonInterleaved) == 0);
+	}
+
+	bool DirectionSpecificStreamParameters::isSampleFormatHostApiSpecific() const
+	{
+		return ((paStreamParameters_.sampleFormat & paCustomFormat) == 0);
+	}
+
+	//////
+	/// Returns the host api-specific sample format, without including any 
+	/// paCustomFormat or paNonInterleaved flags. Will return 0 if the sample format is 
+	/// not host api-specific.
+	//////
+	PaSampleFormat DirectionSpecificStreamParameters::hostApiSpecificSampleFormat() const
+	{
+		if (isSampleFormatHostApiSpecific())
+			return paStreamParameters_.sampleFormat & ~paCustomFormat & ~paNonInterleaved;
+		else
+			return 0;
+	}
+
+	PaTime DirectionSpecificStreamParameters::suggestedLatency() const
+	{
+		return paStreamParameters_.suggestedLatency;
+	}
+
+	void *DirectionSpecificStreamParameters::hostApiSpecificStreamInfo() const
+	{
+		return paStreamParameters_.hostApiSpecificStreamInfo;
+	}
+
+	// -----------------------------------------------------------------------------------
+
+} // namespace portaudio
-- 
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