diff options
Diffstat (limited to 'pd/portaudio/pa_dll_switch/loadPA_DLL.cpp')
| -rw-r--r-- | pd/portaudio/pa_dll_switch/loadPA_DLL.cpp | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/pd/portaudio/pa_dll_switch/loadPA_DLL.cpp b/pd/portaudio/pa_dll_switch/loadPA_DLL.cpp new file mode 100644 index 00000000..043eda87 --- /dev/null +++ b/pd/portaudio/pa_dll_switch/loadPA_DLL.cpp @@ -0,0 +1,203 @@ +////////////////////////////////////////////////////////////////////////// + + +HINSTANCE pPaDll; + +/* + the function pointers to the PortAudio DLLs +*/ + +PaError (__cdecl* Pa_Initialize)( void ); + + + +PaError (__cdecl* Pa_Terminate)( void ); + + +long (__cdecl* Pa_GetHostError)( void ); + + +const char* (__cdecl* Pa_GetErrorText)( PaError ); + + +int (__cdecl* Pa_CountDevices)(void); + +PaDeviceID (__cdecl* Pa_GetDefaultInputDeviceID)( void ); + +PaDeviceID (__cdecl* Pa_GetDefaultOutputDeviceID)( void ); + + +const PaDeviceInfo* (__cdecl* Pa_GetDeviceInfo)( PaDeviceID); + + + +PaError (__cdecl* Pa_OpenStream)( + PortAudioStream ** , + PaDeviceID , + int , + PaSampleFormat , + void *, + PaDeviceID , + int , + PaSampleFormat , + void *, + double , + unsigned long , + unsigned long , + unsigned long , + PortAudioCallback *, + void * ); + + + +PaError (__cdecl* Pa_OpenDefaultStream)( PortAudioStream** stream, + int numInputChannels, + int numOutputChannels, + PaSampleFormat sampleFormat, + double sampleRate, + unsigned long framesPerBuffer, + unsigned long numberOfBuffers, + PortAudioCallback *callback, + void *userData ); + + +PaError (__cdecl* Pa_CloseStream)( PortAudioStream* ); + + +PaError (__cdecl* Pa_StartStream)( PortAudioStream *stream ); + +PaError (__cdecl* Pa_StopStream)( PortAudioStream *stream ); + +PaError (__cdecl* Pa_AbortStream)( PortAudioStream *stream ); + +PaError (__cdecl* Pa_StreamActive)( PortAudioStream *stream ); + +PaTimestamp (__cdecl* Pa_StreamTime)( PortAudioStream *stream ); + +double (__cdecl* Pa_GetCPULoad)( PortAudioStream* stream ); + +int (__cdecl* Pa_GetMinNumBuffers)( int framesPerBuffer, double sampleRate ); + +void (__cdecl* Pa_Sleep)( long msec ); + +PaError (__cdecl* Pa_GetSampleSize)( PaSampleFormat format ); + + +////////////////////////////////////////////////////////////////////////// + +... + +ZERROR AudioEngine::DirectXSupport(ZBOOL bSupDX) +{ + if (bSupDX) + if (CheckForDirectXSupport()) + bSupportDirectX = _TRUE; + else + return _NO_SOUND; + else + bSupportDirectX = _FALSE; + return _NO_ERROR; +} + + + +ZBOOL AudioEngine::CheckForDirectXSupport() +{ + HMODULE pTestDXLib; + FARPROC pFunctionality; + + pTestDXLib=LoadLibrary("DSOUND"); + if (pTestDXLib!=NULL) // check if there is a DirectSound + { + pFunctionality = GetProcAddress(pTestDXLib, (char*) 7); + if (pFunctionality!=NULL) + { + FreeLibrary(pTestDXLib); + return _TRUE; + } + else + { + FreeLibrary(pTestDXLib); + return _FALSE; + } + } + else + return _FALSE; +} + + +ZERROR AudioEngine::LoadPALib() +{ +#ifdef _DEBUG + if (bSupportDirectX) + pPaDll = LoadLibrary("PA_DXD"); + else + pPaDll = LoadLibrary("PA_MMED"); +#else + if (bSupportDirectX) + pPaDll = LoadLibrary("PA_DX"); + else + pPaDll = LoadLibrary("PA_MME"); +#endif + if (pPaDll!=NULL) + { + + Pa_Initialize = (int (__cdecl*)(void))GetProcAddress(pPaDll,"Pa_Initialize"); + Pa_Terminate = (int (__cdecl*)(void))GetProcAddress(pPaDll,"Pa_Terminate"); + Pa_GetHostError = (long (__cdecl* )( void )) GetProcAddress(pPaDll,"Pa_GetHostError"); + Pa_GetErrorText = (const char* (__cdecl* )( PaError )) GetProcAddress(pPaDll,"Pa_GetErrorText"); + Pa_CountDevices = (int (__cdecl*)(void))GetProcAddress(pPaDll,"Pa_CountDevices"); + Pa_GetDefaultInputDeviceID = (int (__cdecl*)(void))GetProcAddress(pPaDll,"Pa_GetDefaultInputDeviceID"); + Pa_GetDefaultOutputDeviceID = (int (__cdecl*)(void))GetProcAddress(pPaDll,"Pa_GetDefaultOutputDeviceID"); + Pa_GetDeviceInfo = (const PaDeviceInfo* (__cdecl* )( PaDeviceID)) GetProcAddress(pPaDll,"Pa_GetDeviceInfo"); + Pa_OpenStream = ( PaError (__cdecl* )( + PortAudioStream ** , + PaDeviceID , + int , + PaSampleFormat , + void *, + PaDeviceID , + int , + PaSampleFormat , + void *, + double , + unsigned long , + unsigned long , + unsigned long , + PortAudioCallback *, + void * )) GetProcAddress(pPaDll,"Pa_OpenStream"); + + Pa_OpenDefaultStream = (PaError (__cdecl* )( PortAudioStream** , + int , + int , + PaSampleFormat , + double , + unsigned long , + unsigned long , + PortAudioCallback *, + void * )) GetProcAddress(pPaDll,"Pa_OpenDefaultStream"); + Pa_CloseStream = (PaError (__cdecl* )( PortAudioStream* )) GetProcAddress(pPaDll,"Pa_CloseStream"); + Pa_StartStream = (PaError (__cdecl* )( PortAudioStream* )) GetProcAddress(pPaDll,"Pa_StartStream"); + Pa_StopStream = (PaError (__cdecl* )( PortAudioStream* ))GetProcAddress(pPaDll,"Pa_StopStream"); + Pa_AbortStream = (PaError (__cdecl* )( PortAudioStream* )) GetProcAddress(pPaDll,"Pa_AbortStream"); + Pa_StreamActive = (PaError (__cdecl* )( PortAudioStream* )) GetProcAddress(pPaDll,"Pa_StreamActive"); + Pa_StreamTime = (PaTimestamp (__cdecl* )( PortAudioStream *))GetProcAddress(pPaDll,"Pa_StreamTime"); + Pa_GetCPULoad = (double (__cdecl* )( PortAudioStream* ))GetProcAddress(pPaDll,"Pa_GetCPULoad"); + Pa_GetMinNumBuffers = (int (__cdecl* )( int , double )) GetProcAddress(pPaDll,"Pa_GetMinNumBuffers"); + Pa_Sleep = (void (__cdecl* )( long )) GetProcAddress(pPaDll,"Pa_Sleep"); + Pa_GetSampleSize = (PaError (__cdecl* )( PaSampleFormat )) GetProcAddress(pPaDll,"Pa_GetSampleSize"); + + return _NO_ERROR; + } + else + return _DLL_NOT_FOUND; +} + +ZERROR AudioEngine::UnLoadPALib() +{ + if (pPaDll!=NULL) + FreeLibrary(pPaDll); + return _NO_ERROR; +} + +... |