SDL_coreaudio.c File Reference

#include "SDL_config.h"
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "../SDL_sysaudio.h"
#include "SDL_coreaudio.h"
#include "SDL_assert.h"

Go to the source code of this file.

Macros
#define	CHECK_RESULT(msg)
#define	DEBUG_COREAUDIO   0

Typedefs
typedef void(*	addDevFn )(const char *name, AudioDeviceID devId, void *data)

Functions
static void	addToDevList (const char *name, AudioDeviceID devId, void *data)
static void	build_device_list (int iscapture, addDevFn addfn, void *addfndata)
static void	COREAUDIO_CloseDevice (_THIS)
static void	COREAUDIO_DetectDevices (int iscapture, SDL_AddAudioDevice addfn)
static int	COREAUDIO_Init (SDL_AudioDriverImpl *impl)
static int	COREAUDIO_OpenDevice (_THIS, const char *devname, int iscapture)
static int	find_device_by_name (_THIS, const char *devname, int iscapture)
static void	findDevId (const char *name, AudioDeviceID devId, void *_data)
static OSStatus	inputCallback (void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData)
static OSStatus	outputCallback (void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData)
static int	prepare_audiounit (_THIS, const char *devname, int iscapture, const AudioStreamBasicDescription *strdesc)

Variables
AudioBootStrap	COREAUDIO_bootstrap

Macro Definition Documentation

#define CHECK_RESULT

(

msg

)

Value:

if (result != noErr) { \
        COREAUDIO_CloseDevice(this); \
        SDL_SetError("CoreAudio error (%s): %d", msg, (int) result); \
        return 0; \
    }

Definition at line 32 of file SDL_coreaudio.c.

Referenced by find_device_by_name(), and prepare_audiounit().

#define DEBUG_COREAUDIO   0

Definition at line 28 of file SDL_coreaudio.c.

Typedef Documentation

typedef void(* addDevFn)(const char *name, AudioDeviceID devId, void *data)

Definition at line 40 of file SDL_coreaudio.c.

Function Documentation

static void addToDevList ( const char *  name, AudioDeviceID  devId, void *  data  )

static

Definition at line 43 of file SDL_coreaudio.c.

Referenced by COREAUDIO_DetectDevices().

static void build_device_list ( int  iscapture, addDevFn  addfn, void *  addfndata  )

static

Definition at line 69 of file SDL_coreaudio.c.

References i, j, max, NULL, SDL_free(), and SDL_malloc().

Referenced by COREAUDIO_DetectDevices(), and find_device_by_name().

static void COREAUDIO_CloseDevice ( _THIS  )

static

Definition at line 318 of file SDL_coreaudio.c.

References NULL, SDL_free(), and SDL_memset().

Referenced by COREAUDIO_Init(), and COREAUDIO_OpenDevice().

static void COREAUDIO_DetectDevices ( int  iscapture, SDL_AddAudioDevice  addfn  )

static

Definition at line 176 of file SDL_coreaudio.c.

References addToDevList(), and build_device_list().

Referenced by COREAUDIO_Init().

static int COREAUDIO_Init ( SDL_AudioDriverImpl *  impl )

static

Definition at line 530 of file SDL_coreaudio.c.

References SDL_AudioDriverImpl::CloseDevice, COREAUDIO_CloseDevice(), COREAUDIO_DetectDevices(), COREAUDIO_OpenDevice(), SDL_AudioDriverImpl::DetectDevices, NULL, SDL_AudioDriverImpl::OnlyHasDefaultOutputDevice, SDL_AudioDriverImpl::OpenDevice, and SDL_AudioDriverImpl::ProvidesOwnCallbackThread.

static int COREAUDIO_OpenDevice ( _THIS  , const char *  devname, int  iscapture  )

static

Definition at line 462 of file SDL_coreaudio.c.

References AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_S8, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_U8, COREAUDIO_CloseDevice(), NULL, prepare_audiounit(), SDL_AUDIO_BITSIZE, SDL_AUDIO_ISBIGENDIAN, SDL_AUDIO_ISFLOAT, SDL_AUDIO_ISSIGNED, SDL_FirstAudioFormat(), SDL_malloc(), SDL_memset(), SDL_OutOfMemory, and SDL_SetError().

Referenced by COREAUDIO_Init().

static int find_device_by_name ( _THIS  , const char *  devname, int  iscapture  )

static

Definition at line 182 of file SDL_coreaudio.c.

References build_device_list(), CHECK_RESULT, findDevId(), NULL, SDL_SetError(), and SDL_zero.

Referenced by prepare_audiounit().

static void findDevId ( const char *  name, AudioDeviceID  devId, void *  _data  )

static

Definition at line 57 of file SDL_coreaudio.c.

References SDL_strcmp().

Referenced by find_device_by_name().

static OSStatus inputCallback ( void *  inRefCon, AudioUnitRenderActionFlags *  ioActionFlags, const AudioTimeStamp *  inTimeStamp, UInt32  inBusNumber, UInt32  inNumberFrames, AudioBufferList *  ioData  )

static

Definition at line 305 of file SDL_coreaudio.c.

Referenced by prepare_audiounit().

static OSStatus outputCallback ( void *  inRefCon, AudioUnitRenderActionFlags *  ioActionFlags, const AudioTimeStamp *  inTimeStamp, UInt32  inBusNumber, UInt32  inNumberFrames, AudioBufferList *  ioData  )

static

Definition at line 247 of file SDL_coreaudio.c.

References i, SDL_LockMutex(), SDL_memcpy(), SDL_memset(), and SDL_UnlockMutex().

Referenced by prepare_audiounit().

static int prepare_audiounit ( _THIS  , const char *  devname, int  iscapture, const AudioStreamBasicDescription *  strdesc  )

static

Definition at line 359 of file SDL_coreaudio.c.

References CHECK_RESULT, comp(), find_device_by_name(), inputCallback(), NULL, outputCallback(), SDL_CalculateAudioSpec(), SDL_malloc(), SDL_memset(), SDL_SetError(), and SDL_zero.

Referenced by COREAUDIO_OpenDevice().

Variable Documentation

AudioBootStrap COREAUDIO_bootstrap

Initial value:

= {
    "coreaudio", "CoreAudio", COREAUDIO_Init, 0
}

Definition at line 555 of file SDL_coreaudio.c.