moved trunk into place

bindings/cpp/include/portaudiocpp/CallbackInterface.hxx

@@ -0,0 +1,45 @@
+#ifndef INCLUDED_PORTAUDIO_CALLBACKINTERFACE_HXX
+#define INCLUDED_PORTAUDIO_CALLBACKINTERFACE_HXX
+
+// ---------------------------------------------------------------------------------------
+
+#include "portaudio.h"
+
+// ---------------------------------------------------------------------------------------
+
+namespace portaudio
+{
+	// -----------------------------------------------------------------------------------
+
+	//////
+	/// @brief Interface for an object that's callable as a PortAudioCpp callback object (ie that implements the 
+	/// paCallbackFun method).
+	//////
+	class CallbackInterface
+	{
+	public:
+		virtual ~CallbackInterface() {}
+
+		virtual int paCallbackFun(const void *inputBuffer, void *outputBuffer, unsigned long numFrames, 
+			const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags) = 0;
+	};
+
+	// -----------------------------------------------------------------------------------
+
+	namespace impl
+	{
+		extern "C"
+		{
+			int callbackInterfaceToPaCallbackAdapter(const void *inputBuffer, void *outputBuffer, unsigned long numFrames, 
+				const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags, 
+				void *userData);
+		} // extern "C"
+	}
+
+	// -----------------------------------------------------------------------------------
+
+} // namespace portaudio
+
+// ---------------------------------------------------------------------------------------
+
+#endif // INCLUDED_PORTAUDIO_CALLBACKINTERFACE_HXX