diff options
Diffstat (limited to '3rdparty/portaudio/bindings/cpp/include/portaudiocpp/MemFunCallbackStream.hxx')
-rw-r--r-- | 3rdparty/portaudio/bindings/cpp/include/portaudiocpp/MemFunCallbackStream.hxx | 162 |
1 files changed, 81 insertions, 81 deletions
diff --git a/3rdparty/portaudio/bindings/cpp/include/portaudiocpp/MemFunCallbackStream.hxx b/3rdparty/portaudio/bindings/cpp/include/portaudiocpp/MemFunCallbackStream.hxx index 01cf37b2016..7ef1d4a3c36 100644 --- a/3rdparty/portaudio/bindings/cpp/include/portaudiocpp/MemFunCallbackStream.hxx +++ b/3rdparty/portaudio/bindings/cpp/include/portaudiocpp/MemFunCallbackStream.hxx @@ -17,87 +17,87 @@ namespace portaudio { - ////// - /// @brief Callback stream using a class's member function as a callback. Template argument T is the type of the - /// class of which a member function is going to be used. - /// - /// Example usage: - /// @verbatim MemFunCallback<MyClass> stream = MemFunCallbackStream(parameters, *this, &MyClass::myCallbackFunction); @endverbatim - ////// - template<typename T> - class MemFunCallbackStream : public CallbackStream - { - public: - typedef int (T::*CallbackFunPtr)(const void *, void *, unsigned long, const PaStreamCallbackTimeInfo *, - PaStreamCallbackFlags); - - // ------------------------------------------------------------------------------- - - MemFunCallbackStream() - { - } - - MemFunCallbackStream(const StreamParameters ¶meters, T &instance, CallbackFunPtr memFun) : adapter_(instance, memFun) - { - open(parameters); - } - - ~MemFunCallbackStream() - { - close(); - } - - void open(const StreamParameters ¶meters, T &instance, CallbackFunPtr memFun) - { - // XXX: need to check if already open? - - adapter_.init(instance, memFun); - open(parameters); - } - - private: - MemFunCallbackStream(const MemFunCallbackStream &); // non-copyable - MemFunCallbackStream &operator=(const MemFunCallbackStream &); // non-copyable - - ////// - /// @brief Inner class which adapts a member function callback to a CallbackInterface compliant - /// class (so it can be adapted using the paCallbackAdapter function). - ////// - class MemFunToCallbackInterfaceAdapter : public CallbackInterface - { - public: - MemFunToCallbackInterfaceAdapter() {} - MemFunToCallbackInterfaceAdapter(T &instance, CallbackFunPtr memFun) : instance_(&instance), memFun_(memFun) {} - - void init(T &instance, CallbackFunPtr memFun) - { - instance_ = &instance; - memFun_ = memFun; - } - - int paCallbackFun(const void *inputBuffer, void *outputBuffer, unsigned long numFrames, - const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags) - { - return (instance_->*memFun_)(inputBuffer, outputBuffer, numFrames, timeInfo, statusFlags); - } - - private: - T *instance_; - CallbackFunPtr memFun_; - }; - - MemFunToCallbackInterfaceAdapter adapter_; - - void open(const StreamParameters ¶meters) - { - PaError err = Pa_OpenStream(&stream_, parameters.inputParameters().paStreamParameters(), parameters.outputParameters().paStreamParameters(), - parameters.sampleRate(), parameters.framesPerBuffer(), parameters.flags(), &impl::callbackInterfaceToPaCallbackAdapter, - static_cast<void *>(&adapter_)); - - if (err != paNoError) - throw PaException(err); - } - }; + ////// + /// @brief Callback stream using a class's member function as a callback. Template argument T is the type of the + /// class of which a member function is going to be used. + /// + /// Example usage: + /// @verbatim MemFunCallback<MyClass> stream = MemFunCallbackStream(parameters, *this, &MyClass::myCallbackFunction); @endverbatim + ////// + template<typename T> + class MemFunCallbackStream : public CallbackStream + { + public: + typedef int (T::*CallbackFunPtr)(const void *, void *, unsigned long, const PaStreamCallbackTimeInfo *, + PaStreamCallbackFlags); + + // ------------------------------------------------------------------------------- + + MemFunCallbackStream() + { + } + + MemFunCallbackStream(const StreamParameters ¶meters, T &instance, CallbackFunPtr memFun) : adapter_(instance, memFun) + { + open(parameters); + } + + ~MemFunCallbackStream() + { + close(); + } + + void open(const StreamParameters ¶meters, T &instance, CallbackFunPtr memFun) + { + // XXX: need to check if already open? + + adapter_.init(instance, memFun); + open(parameters); + } + + private: + MemFunCallbackStream(const MemFunCallbackStream &); // non-copyable + MemFunCallbackStream &operator=(const MemFunCallbackStream &); // non-copyable + + ////// + /// @brief Inner class which adapts a member function callback to a CallbackInterface compliant + /// class (so it can be adapted using the paCallbackAdapter function). + ////// + class MemFunToCallbackInterfaceAdapter : public CallbackInterface + { + public: + MemFunToCallbackInterfaceAdapter() {} + MemFunToCallbackInterfaceAdapter(T &instance, CallbackFunPtr memFun) : instance_(&instance), memFun_(memFun) {} + + void init(T &instance, CallbackFunPtr memFun) + { + instance_ = &instance; + memFun_ = memFun; + } + + int paCallbackFun(const void *inputBuffer, void *outputBuffer, unsigned long numFrames, + const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags) + { + return (instance_->*memFun_)(inputBuffer, outputBuffer, numFrames, timeInfo, statusFlags); + } + + private: + T *instance_; + CallbackFunPtr memFun_; + }; + + MemFunToCallbackInterfaceAdapter adapter_; + + void open(const StreamParameters ¶meters) + { + PaError err = Pa_OpenStream(&stream_, parameters.inputParameters().paStreamParameters(), parameters.outputParameters().paStreamParameters(), + parameters.sampleRate(), parameters.framesPerBuffer(), parameters.flags(), &impl::callbackInterfaceToPaCallbackAdapter, + static_cast<void *>(&adapter_)); + + if (err != paNoError) + throw PaException(err); + } + }; } // portaudio |