// HostAPI-specific initialization function
PaError PaMacCore_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex )
{
PaError result = paNoError;
PaMacCoreHostApiRepresentation *macCoreHostApi = (PaMacCoreHostApiRepresentation *)PaUtil_AllocateMemory( sizeof(PaMacCoreHostApiRepresentation) );
if( !macCoreHostApi )
{
result = paInsufficientMemory;
goto error;
}
macCoreHostApi->allocations = PaUtil_CreateAllocationGroup();
if( !macCoreHostApi->allocations )
{
result = paInsufficientMemory;
goto error;
}
*hostApi = &macCoreHostApi->inheritedHostApiRep;
(*hostApi)->info.structVersion = 1;
(*hostApi)->info.type = paCoreAudio;
(*hostApi)->info.name = "CoreAudio";
result = InitializeDeviceInfos(macCoreHostApi, hostApiIndex);
if (result != paNoError) {
goto error;
}
// Set up the proper callbacks to this HostApi's functions
(*hostApi)->Terminate = Terminate;
(*hostApi)->OpenStream = OpenStream;
(*hostApi)->IsFormatSupported = IsFormatSupported;
PaUtil_InitializeStreamInterface( &macCoreHostApi->callbackStreamInterface, CloseStream, StartStream,
StopStream, AbortStream, IsStreamStopped, IsStreamActive,
GetStreamTime, GetStreamCpuLoad,
PaUtil_DummyRead, PaUtil_DummyWrite,
PaUtil_DummyGetReadAvailable, PaUtil_DummyGetWriteAvailable );
PaUtil_InitializeStreamInterface( &macCoreHostApi->blockingStreamInterface, CloseStream, StartStream,
StopStream, AbortStream, IsStreamStopped, IsStreamActive,
GetStreamTime, PaUtil_DummyGetCpuLoad,
ReadStream, WriteStream, GetStreamReadAvailable, GetStreamWriteAvailable );
return result;
error:
if( macCoreHostApi ) {
CleanUp(macCoreHostApi);
}
return result;
}
PaError PaSkeleton_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex )
{
PaError result = paNoError;
int i, deviceCount;
PaSkeletonHostApiRepresentation *skeletonHostApi;
PaDeviceInfo *deviceInfoArray;
skeletonHostApi = (PaSkeletonHostApiRepresentation*)PaUtil_AllocateMemory( sizeof(PaSkeletonHostApiRepresentation) );
if( !skeletonHostApi )
{
result = paInsufficientMemory;
goto error;
}
skeletonHostApi->allocations = PaUtil_CreateAllocationGroup();
if( !skeletonHostApi->allocations )
{
result = paInsufficientMemory;
goto error;
}
*hostApi = &skeletonHostApi->commonHostApiRep;
(*hostApi)->info.structVersion = 1;
(*hostApi)->info.type = paInDevelopment; /* IMPLEMENT ME: change to correct type id */
(*hostApi)->info.name = "skeleton implementation"; /* IMPLEMENT ME: change to correct name */
(*hostApi)->deviceCount = 0;
(*hostApi)->defaultInputDeviceIndex = paNoDevice; /* IMPLEMENT ME */
(*hostApi)->defaultOutputDeviceIndex = paNoDevice; /* IMPLEMENT ME */
deviceCount = 0; /* IMPLEMENT ME */
if( deviceCount > 0 )
{
(*hostApi)->deviceInfos = (PaDeviceInfo**)PaUtil_GroupAllocateMemory(
skeletonHostApi->allocations, sizeof(PaDeviceInfo*) * deviceCount );
if( !(*hostApi)->deviceInfos )
{
result = paInsufficientMemory;
goto error;
}
/* allocate all device info structs in a contiguous block */
deviceInfoArray = (PaDeviceInfo*)PaUtil_GroupAllocateMemory(
skeletonHostApi->allocations, sizeof(PaDeviceInfo) * deviceCount );
if( !deviceInfoArray )
{
result = paInsufficientMemory;
goto error;
}
for( i=0; i < deviceCount; ++i )
{
PaDeviceInfo *deviceInfo = &deviceInfoArray[i];
deviceInfo->structVersion = 2;
deviceInfo->hostApi = hostApiIndex;
deviceInfo->name = 0; /* IMPLEMENT ME: allocate block and copy name eg:
deviceName = (char*)PaUtil_GroupAllocateMemory( skeletonHostApi->allocations, strlen(srcName) + 1 );
if( !deviceName )
{
result = paInsufficientMemory;
goto error;
}
strcpy( deviceName, srcName );
deviceInfo->name = deviceName;
*/
/*
IMPLEMENT ME:
- populate other device info fields
*/
(*hostApi)->deviceInfos[i] = deviceInfo;
++(*hostApi)->deviceCount;
}
}
(*hostApi)->Terminate = Terminate;
(*hostApi)->OpenStream = OpenStream;
PaUtil_InitializeStreamInterface( &skeletonHostApi->callbackStreamInterface, CloseStream, StartStream,
StopStream, AbortStream, IsStreamStopped, IsStreamActive, GetStreamTime, GetStreamCpuLoad,
PaUtil_DummyReadWrite, PaUtil_DummyReadWrite, PaUtil_DummyGetAvailable, PaUtil_DummyGetAvailable );
PaUtil_InitializeStreamInterface( &skeletonHostApi->blockingStreamInterface, CloseStream, StartStream,
StopStream, AbortStream, IsStreamStopped, IsStreamActive, GetStreamTime, PaUtil_DummyGetCpuLoad,
ReadStream, WriteStream, GetStreamReadAvailable, GetStreamWriteAvailable );
return result;
error:
if( skeletonHostApi )
{
if( skeletonHostApi->allocations )
{
PaUtil_FreeAllAllocations( skeletonHostApi->allocations );
PaUtil_DestroyAllocationGroup( skeletonHostApi->allocations );
}
PaUtil_FreeMemory( skeletonHostApi );
}
return result;
}
PaError
PaSndio_Initialize(PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex)
{
PaSndioHostApiRepresentation *sndioHostApi;
PaDeviceInfo *info;
struct sio_hdl *hdl;
DPR("PaSndio_Initialize: initializing...\n");
/* unusable APIs should return paNoError and a NULL hostApi */
*hostApi = NULL;
sndioHostApi = PaUtil_AllocateMemory(sizeof(PaSndioHostApiRepresentation));
if (sndioHostApi == NULL)
return paNoError;
info = &sndioHostApi->default_info;
info->structVersion = 2;
info->name = "default";
info->hostApi = hostApiIndex;
info->maxInputChannels = 128;
info->maxOutputChannels = 128;
info->defaultLowInputLatency = 0.01;
info->defaultLowOutputLatency = 0.01;
info->defaultHighInputLatency = 0.5;
info->defaultHighOutputLatency = 0.5;
info->defaultSampleRate = 48000;
sndioHostApi->infos[0] = info;
*hostApi = &sndioHostApi->base;
(*hostApi)->info.structVersion = 1;
(*hostApi)->info.type = paSndio;
(*hostApi)->info.name = "sndio";
(*hostApi)->info.deviceCount = 1;
(*hostApi)->info.defaultInputDevice = 0;
(*hostApi)->info.defaultOutputDevice = 0;
(*hostApi)->deviceInfos = sndioHostApi->infos;
(*hostApi)->Terminate = Terminate;
(*hostApi)->OpenStream = OpenStream;
(*hostApi)->IsFormatSupported = IsFormatSupported;
PaUtil_InitializeStreamInterface(&sndioHostApi->blocking,
CloseStream,
StartStream,
StopStream,
AbortStream,
IsStreamStopped,
IsStreamActive,
GetStreamTime,
PaUtil_DummyGetCpuLoad,
BlockingReadStream,
BlockingWriteStream,
BlockingGetStreamReadAvailable,
BlockingGetStreamWriteAvailable);
PaUtil_InitializeStreamInterface(&sndioHostApi->callback,
CloseStream,
StartStream,
StopStream,
AbortStream,
IsStreamStopped,
IsStreamActive,
GetStreamTime,
PaUtil_DummyGetCpuLoad,
PaUtil_DummyRead,
PaUtil_DummyWrite,
PaUtil_DummyGetReadAvailable,
PaUtil_DummyGetWriteAvailable);
DPR("PaSndio_Initialize: done\n");
return paNoError;
}
PaError
PaSndio_Initialize(PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex)
{
PaSndioHostApiRepresentation *sndioHostApi;
PaDeviceInfo *info;
struct sio_hdl *hdl;
char *audiodevices;
char *device;
size_t deviceCount;
DPR("PaSndio_Initialize: initializing...\n");
/* unusable APIs should return paNoError and a NULL hostApi */
*hostApi = NULL;
sndioHostApi = PaUtil_AllocateMemory(sizeof(PaSndioHostApiRepresentation));
if (sndioHostApi == NULL)
return paNoError;
// Add default device
info = &sndioHostApi->device_info[0];
InitDeviceInfo(info, hostApiIndex, SIO_DEVANY);
sndioHostApi->infos[0] = info;
deviceCount = 1;
// Add additional devices as specified in the PA_SNDIO_AUDIODEVICES
// environment variable as a colon separated list
sndioHostApi->audiodevices = NULL;
audiodevices = getenv("PA_SNDIO_AUDIODEVICES");
if (audiodevices != NULL) {
sndioHostApi->audiodevices = strdup(audiodevices);
if (sndioHostApi->audiodevices == NULL)
return paNoError;
audiodevices = sndioHostApi->audiodevices;
while ((device = strsep(&audiodevices, ":")) != NULL &&
deviceCount < PA_SNDIO_AUDIODEVICES_MAX) {
if (*device == '\0')
continue;
info = &sndioHostApi->device_info[deviceCount];
InitDeviceInfo(info, hostApiIndex, device);
sndioHostApi->infos[deviceCount] = info;
deviceCount++;
}
}
*hostApi = &sndioHostApi->base;
(*hostApi)->info.structVersion = 1;
(*hostApi)->info.type = paSndio;
(*hostApi)->info.name = "sndio";
(*hostApi)->info.deviceCount = deviceCount;
(*hostApi)->info.defaultInputDevice = 0;
(*hostApi)->info.defaultOutputDevice = 0;
(*hostApi)->deviceInfos = sndioHostApi->infos;
(*hostApi)->Terminate = Terminate;
(*hostApi)->OpenStream = OpenStream;
(*hostApi)->IsFormatSupported = IsFormatSupported;
PaUtil_InitializeStreamInterface(&sndioHostApi->blocking,
CloseStream,
StartStream,
StopStream,
AbortStream,
IsStreamStopped,
IsStreamActive,
GetStreamTime,
PaUtil_DummyGetCpuLoad,
BlockingReadStream,
BlockingWriteStream,
BlockingGetStreamReadAvailable,
BlockingGetStreamWriteAvailable);
PaUtil_InitializeStreamInterface(&sndioHostApi->callback,
CloseStream,
StartStream,
StopStream,
AbortStream,
IsStreamStopped,
IsStreamActive,
GetStreamTime,
PaUtil_DummyGetCpuLoad,
PaUtil_DummyRead,
PaUtil_DummyWrite,
PaUtil_DummyGetReadAvailable,
PaUtil_DummyGetWriteAvailable);
DPR("PaSndio_Initialize: done\n");
return paNoError;
}
PaError PaJack_Initialize( PaUtilHostApiRepresentation **hostApi,
PaHostApiIndex hostApiIndex )
{
PaError result = paNoError;
PaJackHostApiRepresentation *jackHostApi;
jackHostApi = (PaJackHostApiRepresentation*)
PaUtil_AllocateMemory( sizeof(PaJackHostApiRepresentation) );
if( !jackHostApi )
{
result = paInsufficientMemory;
goto error;
}
jackHostApi->deviceInfoMemory = NULL;
/* Try to become a client of the JACK server. If we cannot do
* this, than this API cannot be used. */
jackHostApi->jack_client = jack_client_new( "PortAudio client" );
if( jackHostApi->jack_client == 0 )
{
/* the V19 development docs say that if an implementation
* detects that it cannot be used, it should return a NULL
* interface and paNoError */
result = paNoError;
*hostApi = NULL;
goto error;
}
jackHostApi->deviceInfoMemory = PaUtil_CreateAllocationGroup();
if( !jackHostApi->deviceInfoMemory )
{
result = paInsufficientMemory;
goto error;
}
jackHostApi->hostApiIndex = hostApiIndex;
*hostApi = &jackHostApi->commonHostApiRep;
(*hostApi)->info.structVersion = 1;
(*hostApi)->info.type = paInDevelopment;
(*hostApi)->info.name = "JACK Audio Connection Kit";
(*hostApi)->info.defaultInputDevice = paNoDevice; /* set in BuildDeviceList() */
(*hostApi)->info.defaultOutputDevice = paNoDevice; /* set in BuildDeviceList() */
(*hostApi)->info.deviceCount = 0; /* set in BuildDeviceList() */
/* Build a device list by querying the JACK server */
result = BuildDeviceList( jackHostApi );
if( result != paNoError )
goto error;
/* Register functions */
(*hostApi)->Terminate = Terminate;
(*hostApi)->OpenStream = OpenStream;
(*hostApi)->IsFormatSupported = IsFormatSupported;
PaUtil_InitializeStreamInterface( &jackHostApi->callbackStreamInterface,
CloseStream, StartStream,
StopStream, AbortStream,
IsStreamStopped, IsStreamActive,
GetStreamTime, GetStreamCpuLoad,
PaUtil_DummyRead, PaUtil_DummyWrite,
PaUtil_DummyGetReadAvailable,
PaUtil_DummyGetWriteAvailable );
return result;
error:
if( jackHostApi )
{
if( jackHostApi->deviceInfoMemory )
{
PaUtil_FreeAllAllocations( jackHostApi->deviceInfoMemory );
PaUtil_DestroyAllocationGroup( jackHostApi->deviceInfoMemory );
}
PaUtil_FreeMemory( jackHostApi );
}
return result;
}
