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