pa_win_hostapis.c File Reference

Win32 host API initialization function table. More...

#include "pa_hostapi.h"

Functions
PaError	PaSkeleton_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)
PaError	PaWinMme_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)
PaError	PaWinDs_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)
PaError	PaAsio_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)
PaError	PaWinWdm_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)
PaError	PaWasapi_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)
PaError	PaJack_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)

Variables
PaUtilHostApiInitializer *	paHostApiInitializers []

Detailed Description

Win32 host API initialization function table.

Function Documentation

PaError PaAsio_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index
	)

References PaAsioHostApiRepresentation::allocations, asioDrivers, PaAsioHostApiRepresentation::asioDrivers, PaAsioHostApiRepresentation::blockingStreamInterface, PaAsioHostApiRepresentation::callbackStreamInterface, PaAsioHostApiRepresentation::comInitializationResult, PaAsioDeviceInfo::commonDeviceInfo, PaDeviceInfo::hostApi, PaUtilHostApiRepresentation::info, PaAsioHostApiRepresentation::inheritedHostApiRep, IsDebuggerPresent_, PaDeviceInfo::name, PaAsioHostApiRepresentation::openAsioDeviceIndex, PA_DEBUG, paASIO, paInsufficientMemory, paNoDevice, paNoError, PaUtil_AllocateZeroInitializedMemory(), PaUtil_CreateAllocationGroup(), PaUtil_DestroyAllocationGroup(), PaUtil_DummyGetCpuLoad(), PaUtil_DummyGetReadAvailable(), PaUtil_DummyGetWriteAvailable(), PaUtil_DummyRead(), PaUtil_DummyWrite(), PaUtil_FreeAllAllocations(), PaUtil_FreeMemory(), PaUtil_GroupAllocateZeroInitializedMemory(), PaUtil_InitializeStreamInterface(), PaWinUtil_CoInitialize(), PaWinUtil_CoUninitialize(), PaHostApiInfo::structVersion, PaDeviceInfo::structVersion, and PaAsioHostApiRepresentation::systemSpecific.

PaError PaJack_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index
	)

References ASSERT_CALL, PaJackHostApiRepresentation::blockingStreamInterface, PaJackHostApiRepresentation::callbackStreamInterface, PaJackHostApiRepresentation::commonHostApiRep, PaJackHostApiRepresentation::cond, PaJackHostApiRepresentation::condClockId, PaJackHostApiRepresentation::deviceInfoMemory, ENSURE_PA, PaJackHostApiRepresentation::hostApiIndex, PaUtilHostApiRepresentation::info, PaJackHostApiRepresentation::inputBase, PaJackHostApiRepresentation::jack_buffer_size, PaJackHostApiRepresentation::jack_client, PaJackHostApiRepresentation::jackIsDown, PaJackHostApiRepresentation::mtx, PaJackHostApiRepresentation::outputBase, PA_DEBUG, paInsufficientMemory, paJACK, paNoError, PaPthreadUtil_NegotiateCondAttrClock(), paUnanticipatedHostError, PaUtil_AllocateZeroInitializedMemory(), PaUtil_CreateAllocationGroup(), PaUtil_DestroyAllocationGroup(), PaUtil_DummyGetCpuLoad(), PaUtil_DummyGetReadAvailable(), PaUtil_DummyGetWriteAvailable(), PaUtil_DummyRead(), PaUtil_DummyWrite(), PaUtil_FreeAllAllocations(), PaUtil_FreeMemory(), PaUtil_InitializeStreamInterface(), PaJackHostApiRepresentation::processQueue, PaHostApiInfo::structVersion, PaJackHostApiRepresentation::toAdd, PaJackHostApiRepresentation::toRemove, UNLESS, and PaJackHostApiRepresentation::xrun.

PaError PaSkeleton_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index
	)

References PaSkeletonHostApiRepresentation::allocations, PaSkeletonHostApiRepresentation::blockingStreamInterface, PaSkeletonHostApiRepresentation::callbackStreamInterface, PaDeviceInfo::defaultHighInputLatency, PaDeviceInfo::defaultHighOutputLatency, PaDeviceInfo::defaultLowInputLatency, PaDeviceInfo::defaultLowOutputLatency, PaDeviceInfo::defaultSampleRate, GetStreamCpuLoad(), GetStreamReadAvailable(), GetStreamTime(), GetStreamWriteAvailable(), PaDeviceInfo::hostApi, PaUtilHostApiRepresentation::info, PaSkeletonHostApiRepresentation::inheritedHostApiRep, PaUtilHostApiRepresentation::IsFormatSupported, IsStreamActive(), IsStreamStopped(), PaDeviceInfo::maxInputChannels, PaDeviceInfo::maxOutputChannels, PaDeviceInfo::name, PaUtilHostApiRepresentation::OpenStream, paInDevelopment, paInsufficientMemory, paNoDevice, paNoError, PaUtil_AllocateZeroInitializedMemory(), PaUtil_CreateAllocationGroup(), PaUtil_DestroyAllocationGroup(), PaUtil_DummyGetCpuLoad(), PaUtil_DummyGetReadAvailable(), PaUtil_DummyGetWriteAvailable(), PaUtil_DummyRead(), PaUtil_DummyWrite(), PaUtil_FreeAllAllocations(), PaUtil_FreeMemory(), PaUtil_GroupAllocateZeroInitializedMemory(), PaUtil_InitializeStreamInterface(), ReadStream(), PaHostApiInfo::structVersion, PaDeviceInfo::structVersion, PaUtilHostApiRepresentation::Terminate, and WriteStream().

PaError PaWasapi_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index
	)

References PaWasapiHostApiRepresentation::allocations, PaWasapiHostApiRepresentation::blockingStreamInterface, PaWasapiHostApiRepresentation::callbackStreamInterface, PaWasapiHostApiRepresentation::comInitializationResult, GetStreamCpuLoad(), GetStreamReadAvailable(), GetStreamTime(), GetStreamWriteAvailable(), PaUtilHostApiRepresentation::info, PaWasapiHostApiRepresentation::inheritedHostApiRep, IsFormatSupported(), IsStreamActive(), IsStreamStopped(), OpenStream(), Pa_GetErrorText(), paInsufficientMemory, paNoDevice, paNoError, paOsVersionWindowsVistaServer2008, PaUtil_AllocateZeroInitializedMemory(), PaUtil_CreateAllocationGroup(), PaUtil_DummyGetCpuLoad(), PaUtil_DummyGetReadAvailable(), PaUtil_DummyGetWriteAvailable(), PaUtil_DummyRead(), PaUtil_DummyWrite(), PaUtil_InitializeStreamInterface(), paWASAPI, PaWinUtil_CoInitialize(), PaWinUtil_GetOsVersion(), PRINT, ReadStream(), PaHostApiInfo::structVersion, Terminate(), PaWasapiHostApiRepresentation::useWOW64Workaround, and WriteStream().

PaError PaWinDs_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index
	)

References PaWinDsHostApiRepresentation::allocations, PaWinDsHostApiRepresentation::blockingStreamInterface, PaWinDsHostApiRepresentation::callbackStreamInterface, PaWinDsHostApiRepresentation::comInitializationResult, DSDeviceNameAndGUIDVector::count, DSDeviceNameAndGUIDVector::enumerationError, GetStreamReadAvailable(), GetStreamWriteAvailable(), PaDeviceInfo::hostApi, PaUtilHostApiRepresentation::info, PaWinDsDeviceInfo::inheritedDeviceInfo, PaWinDsHostApiRepresentation::inheritedHostApiRep, DSDeviceNamesAndGUIDs::inputNamesAndGUIDs, DSDeviceNameAndGUIDVector::items, DSDeviceNameAndGUID::lpGUID, DSDeviceNameAndGUID::name, PaDeviceInfo::name, DSDeviceNamesAndGUIDs::outputNamesAndGUIDs, paDirectSound, paInsufficientMemory, paNoDevice, paNoError, PaUtil_AllocateZeroInitializedMemory(), PaUtil_CreateAllocationGroup(), PaUtil_DummyGetCpuLoad(), PaUtil_DummyGetReadAvailable(), PaUtil_DummyGetWriteAvailable(), PaUtil_DummyRead(), PaUtil_DummyWrite(), PaUtil_GroupAllocateZeroInitializedMemory(), PaUtil_InitializeStreamInterface(), PaWinDs_InitializeDSoundEntryPoints(), paWinDsDSoundEntryPoints, PaWinUtil_CoInitialize(), DSDeviceNameAndGUID::pnpInterface, ReadStream(), PaHostApiInfo::structVersion, PaDeviceInfo::structVersion, DSDeviceNamesAndGUIDs::winDsHostApi, and WriteStream().

PaError PaWinMme_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index
	)

References PaWinMmeHostApiRepresentation::allocations, PaWinMmeHostApiRepresentation::blockingStreamInterface, PaWinMmeHostApiRepresentation::callbackStreamInterface, PaDeviceInfo::defaultHighInputLatency, PaDeviceInfo::defaultHighOutputLatency, PaDeviceInfo::defaultLowInputLatency, PaDeviceInfo::defaultLowOutputLatency, PaWinMmeDeviceInfo::deviceInputChannelCountIsKnown, PaWinMmeDeviceInfo::deviceOutputChannelCountIsKnown, DRVM_MAPPER_PREFERRED_GET, DWORD_PTR, GetStreamCpuLoad(), GetStreamReadAvailable(), GetStreamTime(), GetStreamWriteAvailable(), PaDeviceInfo::hostApi, PaUtilHostApiRepresentation::info, PaWinMmeDeviceInfo::inheritedDeviceInfo, PaWinMmeHostApiRepresentation::inheritedHostApiRep, PaWinMmeHostApiRepresentation::inputDeviceCount, IsFormatSupported(), IsStreamActive(), IsStreamStopped(), PaDeviceInfo::maxInputChannels, PaDeviceInfo::maxOutputChannels, OpenStream(), PaWinMmeHostApiRepresentation::outputDeviceCount, paInsufficientMemory, paMME, paNoDevice, paNoError, PaUtil_AllocateZeroInitializedMemory(), PaUtil_CreateAllocationGroup(), PaUtil_DestroyAllocationGroup(), PaUtil_DummyGetCpuLoad(), PaUtil_DummyGetReadAvailable(), PaUtil_DummyGetWriteAvailable(), PaUtil_DummyRead(), PaUtil_DummyWrite(), PaUtil_FreeAllAllocations(), PaUtil_FreeMemory(), PaUtil_GroupAllocateZeroInitializedMemory(), PaUtil_InitializeStreamInterface(), ReadStream(), PaHostApiInfo::structVersion, PaDeviceInfo::structVersion, Terminate(), PaWinMmeHostApiRepresentation::winMmeDeviceIds, and WriteStream().

PaError PaWinWdm_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index
	)

References __PaWinWdmHostApiRepresentation::allocations, __PaWinWdmHostApiRepresentation::blockingStreamInterface, BOOL(), __PaWinWdmHostApiRepresentation::callbackStreamInterface, DllKsUser, FunctionKsCreatePin, GetStreamCpuLoad(), GetStreamReadAvailable(), GetStreamTime(), GetStreamWriteAvailable(), HANDLE(), PaWinWDMKSAvRtEntryPoints::hInstance, PaUtilHostApiRepresentation::info, __PaWinWdmHostApiRepresentation::inheritedHostApiRep, IsFormatSupported(), IsStreamActive(), IsStreamStopped(), LPDWORD, OpenStream(), PA_LOGE_, PA_LOGL_, paInsufficientMemory, paNoDevice, paNoError, PaUtil_AllocateZeroInitializedMemory(), PaUtil_CreateAllocationGroup(), PaUtil_DummyGetCpuLoad(), PaUtil_DummyGetReadAvailable(), PaUtil_DummyGetWriteAvailable(), PaUtil_DummyRead(), PaUtil_DummyWrite(), PaUtil_GetTime(), PaUtil_InitializeStreamInterface(), paWDMKS, ReadStream(), PaHostApiInfo::structVersion, Terminate(), WINAPI, and WriteStream().

Variable Documentation

PaUtilHostApiInitializer* paHostApiInitializers[]

paHostApiInitializers is a NULL-terminated array of host API initialization functions. These functions are called by pa_front.c to initialize the host APIs when the client calls Pa_Initialize().

The initialization functions are invoked in order.

The first successfully initialized host API that has a default input or output device is used as the default PortAudio host API. This is based on the logic that there is only one default host API, and it must contain the default input and output devices (if defined).

There is a platform specific file that defines paHostApiInitializers for that platform, pa_win/pa_win_hostapis.c contains the Win32 definitions for example.

Note that on Linux, ALSA is placed before OSS so that the former is preferred over the latter.