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