From a4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Sat, 27 Aug 2022 23:52:56 -0500
Subject: add plibsys

---
 .../source/portaudiocpp/CppFunCallbackStream.cxx   | 81 ++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 3rdparty/portaudio/bindings/cpp/source/portaudiocpp/CppFunCallbackStream.cxx

(limited to '3rdparty/portaudio/bindings/cpp/source/portaudiocpp/CppFunCallbackStream.cxx')

diff --git a/3rdparty/portaudio/bindings/cpp/source/portaudiocpp/CppFunCallbackStream.cxx b/3rdparty/portaudio/bindings/cpp/source/portaudiocpp/CppFunCallbackStream.cxx
new file mode 100644
index 0000000..fe0b4ab
--- /dev/null
+++ b/3rdparty/portaudio/bindings/cpp/source/portaudiocpp/CppFunCallbackStream.cxx
@@ -0,0 +1,81 @@
+#include "portaudiocpp/CppFunCallbackStream.hxx"
+
+#include "portaudiocpp/StreamParameters.hxx"
+#include "portaudiocpp/Exception.hxx"
+
+namespace portaudio
+{
+	namespace impl
+	{
+		//////
+		/// Adapts any a C++ callback to a C-callable function (ie this function). A 
+		/// pointer to a struct with the C++ function pointer and the actual user data should be 
+		/// passed as the ``userData'' parameter when setting up the callback.
+		//////
+		int cppCallbackToPaCallbackAdapter(const void *inputBuffer, void *outputBuffer, unsigned long numFrames, 
+			const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags, void *userData)
+		{
+			FunCallbackStream::CppToCCallbackData *data = static_cast<FunCallbackStream::CppToCCallbackData *>(userData);
+			return data->funPtr(inputBuffer, outputBuffer, numFrames, timeInfo, statusFlags, data->userData);
+		}
+	}
+
+	// -----------------------------------------------------------------------------------
+
+	FunCallbackStream::CppToCCallbackData::CppToCCallbackData()
+	{
+	}
+
+	FunCallbackStream::CppToCCallbackData::CppToCCallbackData(CallbackFunPtr funPtr, void *userData) : funPtr(funPtr), userData(userData)
+	{
+	}
+
+	void FunCallbackStream::CppToCCallbackData::init(CallbackFunPtr funPtr, void *userData)
+	{
+		this->funPtr = funPtr;
+		this->userData = userData;
+	}
+
+	// -----------------------------------------------------------------------------------
+
+	FunCallbackStream::FunCallbackStream()
+	{
+	}
+
+	FunCallbackStream::FunCallbackStream(const StreamParameters &parameters, CallbackFunPtr funPtr, void *userData) : adapterData_(funPtr, userData)
+	{
+		open(parameters);
+	}
+
+	FunCallbackStream::~FunCallbackStream()
+	{
+		try
+		{
+			close();
+		}
+		catch (...)
+		{
+			// ignore all errors
+		}
+	}
+
+	void FunCallbackStream::open(const StreamParameters &parameters, CallbackFunPtr funPtr, void *userData)
+	{
+		adapterData_.init(funPtr, userData);
+		open(parameters);
+	}
+
+	void FunCallbackStream::open(const StreamParameters &parameters)
+	{
+		PaError err = Pa_OpenStream(&stream_, parameters.inputParameters().paStreamParameters(), parameters.outputParameters().paStreamParameters(), 
+			parameters.sampleRate(), parameters.framesPerBuffer(), parameters.flags(), &impl::cppCallbackToPaCallbackAdapter, 
+			static_cast<void *>(&adapterData_));
+
+		if (err != paNoError)
+		{
+			throw PaException(err);
+		}
+	}
+
+	// -----------------------------------------------------------------------------------
+}
-- 
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