add initial structure

1 files changed, 25 insertions, 0 deletions

diff --git a/portaudio/bindings/cpp/source/portaudiocpp/CallbackInterface.cxx b/portaudio/bindings/cpp/source/portaudiocpp/CallbackInterface.cxx
new file mode 100644
index 0000000..0137261
--- /dev/null
+++ b/portaudio/bindings/cpp/source/portaudiocpp/CallbackInterface.cxx
@@ -0,0 +1,25 @@
+#include "portaudiocpp/CallbackInterface.hxx"
+
+namespace portaudio
+{
+
+	namespace impl
+	{
+
+		//////
+		/// Adapts any CallbackInterface object to a C-callable function (ie this function). A 
+		/// pointer to the object should be passed as ``userData'' when setting up the callback.
+		//////
+		int callbackInterfaceToPaCallbackAdapter(const void *inputBuffer, void *outputBuffer, unsigned long numFrames, 
+			const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags, void *userData)
+		{
+			CallbackInterface *cb = static_cast<CallbackInterface *>(userData);
+			return cb->paCallbackFun(inputBuffer, outputBuffer, numFrames, timeInfo, statusFlags);
+		}
+
+
+	} // namespace impl
+
+} // namespace portaudio
+
+