pa_mac_core_internal.h File Reference

#include <CoreAudio/CoreAudio.h>
#include <CoreServices/CoreServices.h>
#include <AudioUnit/AudioUnit.h>
#include <AudioToolbox/AudioToolbox.h>
#include "portaudio.h"
#include "pa_util.h"
#include "pa_hostapi.h"
#include "pa_stream.h"
#include "pa_allocation.h"
#include "pa_cpuload.h"
#include "pa_process.h"
#include "pa_ringbuffer.h"
#include "pa_mac_core_blocking.h"

Go to the source code of this file.

Data Structures
struct	PaMacAUHAL
struct	PaMacCoreDeviceProperties
struct	PaMacCoreStream

Macros
#define	RING_BUFFER_ADVANCE_DENOMINATOR   (4)

Typedefs
typedef struct PaMacCoreDeviceProperties	PaMacCoreDeviceProperties
typedef struct PaMacCoreStream	PaMacCoreStream

Functions
PaError	PaMacCore_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index)
PaError	ReadStream (PaStream *stream, void *buffer, unsigned long frames)
PaError	WriteStream (PaStream *stream, const void *buffer, unsigned long frames)
signed long	GetStreamReadAvailable (PaStream *stream)
signed long	GetStreamWriteAvailable (PaStream *stream)

Macro Definition Documentation

RING_BUFFER_ADVANCE_DENOMINATOR

#define RING_BUFFER_ADVANCE_DENOMINATOR   (4)

Typedef Documentation

PaMacCoreDeviceProperties

typedef struct PaMacCoreDeviceProperties PaMacCoreDeviceProperties

PaMacCoreStream

typedef struct PaMacCoreStream PaMacCoreStream

Function Documentation

GetStreamReadAvailable()

signed long GetStreamReadAvailable

(

PaStream *

stream

)

References PaMacBlio::inputRingBuffer, PaUtil_GetRingBufferReadAvailable(), and VVDBUG.

Referenced by PaMacCore_Initialize(), PaOSS_Initialize(), PaSkeleton_Initialize(), PaWasapi_Initialize(), PaWinDs_Initialize(), PaWinMme_Initialize(), and PaWinWdm_Initialize().

GetStreamWriteAvailable()

signed long GetStreamWriteAvailable

(

PaStream *

stream

)

References PaMacBlio::outputRingBuffer, PaUtil_GetRingBufferWriteAvailable(), and VVDBUG.

Referenced by PaMacCore_Initialize(), PaOSS_Initialize(), PaSkeleton_Initialize(), PaWasapi_Initialize(), PaWinDs_Initialize(), PaWinMme_Initialize(), and PaWinWdm_Initialize().

PaMacCore_Initialize()

PaError PaMacCore_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	index )

ReadStream()

PaError ReadStream	(	PaStream *	stream,
		void *	buffer,
		unsigned long	frames )

Todo

REVIEW: consider what to do if the input overflows. do we requeue all of the buffers? should we be running a thread to make sure they are always queued? see: http://www.portaudio.com/trac/ticket/117

References buffer, PaMacBlio::inChan, PaMacBlio::inputRingBuffer, PaMacBlio::inputSampleSizeActual, MIN, PA_MAC_BLIO_BUSY_WAIT_SLEEP_INTERVAL, Pa_Sleep(), paInputOverflow, paInputOverflowed, paNoError, PaUtil_GetRingBufferReadAvailable(), PaUtil_ReadRingBuffer(), PaMacBlio::statusFlags, UNIX_ERR, and VVDBUG.

Referenced by PaMacCore_Initialize(), PaOSS_Initialize(), PaSkeleton_Initialize(), PaWasapi_Initialize(), PaWinDs_Initialize(), PaWinMme_Initialize(), and PaWinWdm_Initialize().

WriteStream()

PaError WriteStream	(	PaStream *	stream,
		const void *	buffer,
		unsigned long	frames )

Todo

REVIEW: consider what to do if the output underflows. do we requeue all the existing buffers with zeros? should we run a separate thread to keep the buffers enqueued at all times? see: http://www.portaudio.com/trac/ticket/117

References PaMacCoreStream::blio, buffer, MIN, PaMacBlio::outChan, PaMacBlio::outputRingBuffer, PaMacBlio::outputSampleSizeActual, PA_MAC_BLIO_BUSY_WAIT_SLEEP_INTERVAL, Pa_Sleep(), paInternalError, paNoError, paOutputUnderflow, paOutputUnderflowed, PaUtil_GetRingBufferWriteAvailable(), PaUtil_WriteRingBuffer(), PaMacCoreStream::state, PaMacBlio::statusFlags, UNIX_ERR, and VVDBUG.

Referenced by PaMacCore_Initialize(), PaOSS_Initialize(), PaSkeleton_Initialize(), PaWasapi_Initialize(), PaWinDs_Initialize(), PaWinMme_Initialize(), and PaWinWdm_Initialize().