libsoundio/src/coreaudio.h
Raphaël Londeix 406ffa668c Wrap atomic_flag usage behind SoundIo macros and types
As done for other atomic types, we hide atomic_flag real type in
    order to use both the C and the C++ standard libraries.
2015-12-05 13:33:47 +00:00

67 lines
1.7 KiB
C

/*
* Copyright (c) 2015 Andrew Kelley
*
* This file is part of libsoundio, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#ifndef SOUNDIO_COREAUDIO_H
#define SOUNDIO_COREAUDIO_H
#include "soundio_internal.h"
#include "os.h"
#include "list.h"
#include "atomics.h"
#include <CoreAudio/CoreAudio.h>
#include <AudioUnit/AudioUnit.h>
struct SoundIoPrivate;
int soundio_coreaudio_init(struct SoundIoPrivate *si);
struct SoundIoDeviceCoreAudio {
AudioDeviceID device_id;
UInt32 latency_frames;
};
SOUNDIO_MAKE_LIST_STRUCT(AudioDeviceID, SoundIoListAudioDeviceID, SOUNDIO_LIST_STATIC)
struct SoundIoCoreAudio {
struct SoundIoOsMutex *mutex;
struct SoundIoOsCond *cond;
struct SoundIoOsThread *thread;
struct SoundIoAtomicFlag abort_flag;
// this one is ready to be read with flush_events. protected by mutex
struct SoundIoDevicesInfo *ready_devices_info;
struct SoundIoAtomicBool have_devices_flag;
struct SoundIoOsCond *have_devices_cond;
struct SoundIoOsCond *scan_devices_cond;
struct SoundIoListAudioDeviceID registered_listeners;
struct SoundIoAtomicBool device_scan_queued;
struct SoundIoAtomicBool service_restarted;
int shutdown_err;
bool emitted_shutdown_cb;
};
struct SoundIoOutStreamCoreAudio {
AudioComponentInstance instance;
AudioBufferList *io_data;
int buffer_index;
int frames_left;
int write_frame_count;
double hardware_latency;
struct SoundIoChannelArea areas[SOUNDIO_MAX_CHANNELS];
};
struct SoundIoInStreamCoreAudio {
AudioComponentInstance instance;
AudioBufferList *buffer_list;
int frames_left;
double hardware_latency;
struct SoundIoChannelArea areas[SOUNDIO_MAX_CHANNELS];
};
#endif