cannam@124: #ifndef INCLUDED_PORTAUDIO_CPPFUNCALLBACKSTREAM_HXX
cannam@124: #define INCLUDED_PORTAUDIO_CPPFUNCALLBACKSTREAM_HXX
cannam@124: 
cannam@124: // ---------------------------------------------------------------------------------------
cannam@124: 
cannam@124: #include "portaudio.h"
cannam@124: 
cannam@124: #include "portaudiocpp/CallbackStream.hxx"
cannam@124: 
cannam@124: // ---------------------------------------------------------------------------------------
cannam@124: 
cannam@124: // Forward declaration(s):
cannam@124: namespace portaudio
cannam@124: {
cannam@124: 	class StreamParameters;
cannam@124: }
cannam@124: 
cannam@124: // ---------------------------------------------------------------------------------------
cannam@124: 
cannam@124: // Declaration(s):
cannam@124: namespace portaudio
cannam@124: {
cannam@124: 
cannam@124: 
cannam@124: 	namespace impl
cannam@124: 	{
cannam@124: 		extern "C"
cannam@124: 		{
cannam@124: 			int cppCallbackToPaCallbackAdapter(const void *inputBuffer, void *outputBuffer, unsigned long numFrames, 
cannam@124: 				const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags, 
cannam@124: 				void *userData);
cannam@124: 		} // extern "C"
cannam@124: 	}
cannam@124: 
cannam@124: 	// -----------------------------------------------------------------------------------
cannam@124: 
cannam@124: 	//////
cannam@124: 	/// @brief Callback stream using a C++ function (either a free function or a static function) 
cannam@124: 	/// callback.
cannam@124: 	//////
cannam@124: 	class FunCallbackStream : public CallbackStream
cannam@124: 	{
cannam@124: 	public:
cannam@124: 		typedef int (*CallbackFunPtr)(const void *inputBuffer, void *outputBuffer, unsigned long numFrames, 
cannam@124: 			const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags, 
cannam@124: 			void *userData);
cannam@124: 
cannam@124: 		// -------------------------------------------------------------------------------
cannam@124: 
cannam@124: 		//////
cannam@124: 		/// @brief Simple structure containing a function pointer to the C++ callback function and a 
cannam@124: 		/// (void) pointer to the user supplied data.
cannam@124: 		//////
cannam@124: 		struct CppToCCallbackData
cannam@124: 		{
cannam@124: 			CppToCCallbackData();
cannam@124: 			CppToCCallbackData(CallbackFunPtr funPtr, void *userData);
cannam@124: 			void init(CallbackFunPtr funPtr, void *userData);
cannam@124: 
cannam@124: 			CallbackFunPtr funPtr;
cannam@124: 			void *userData;
cannam@124: 		};
cannam@124: 
cannam@124: 		// -------------------------------------------------------------------------------
cannam@124: 
cannam@124: 		FunCallbackStream();
cannam@124: 		FunCallbackStream(const StreamParameters &parameters, CallbackFunPtr funPtr, void *userData);
cannam@124: 		~FunCallbackStream();
cannam@124: 
cannam@124: 		void open(const StreamParameters &parameters, CallbackFunPtr funPtr, void *userData);
cannam@124: 
cannam@124: 	private:
cannam@124: 		FunCallbackStream(const FunCallbackStream &); // non-copyable
cannam@124: 		FunCallbackStream &operator=(const FunCallbackStream &); // non-copyable
cannam@124: 
cannam@124: 		CppToCCallbackData adapterData_;
cannam@124: 
cannam@124: 		void open(const StreamParameters &parameters);
cannam@124: 	};
cannam@124: 
cannam@124: 
cannam@124: } // portaudio
cannam@124: 
cannam@124: // ---------------------------------------------------------------------------------------
cannam@124: 
cannam@124: #endif // INCLUDED_PORTAUDIO_CPPFUNCALLBACKSTREAM_HXX