virtualx-engine/drivers/coreaudio/audio_driver_coreaudio.h
Pedro J. Estébanez 18fbdbb456 Reimplement Mutex with C++'s <mutex>
Main:
- It's now implemented thanks to `<mutex>`. No more platform-specific implementations.
- `BinaryMutex` (non-recursive) is added, as an alternative for special cases.
- Doesn't need allocation/deallocation anymore. It can live in the stack and be part of other classes.
- Because of that, it's methods are now `const` and the inner mutex is `mutable` so it can be easily used in `const` contexts.
- A no-op implementation is provided if `NO_THREADS` is defined. No more need to add `#ifdef NO_THREADS` just for this.
- `MutexLock` now takes a reference. At this point the cases of null `Mutex`es are rare. If you ever need that, just don't use `MutexLock`.
- Thread-safe utilities are therefore simpler now.

Misc.:
- `ScopedMutexLock` is dropped and replaced by `MutexLock`, because they were pretty much the same.
- Every case of lock, do-something, unlock is replaced by `MutexLock` (complex cases where it's not straightfoward are kept as as explicit lock and unlock).
- `ShaderRD` contained an `std::mutex`, which has been replaced by `Mutex`.
2020-02-26 20:40:10 +01:00

126 lines
4.3 KiB
C++

/*************************************************************************/
/* audio_driver_coreaudio.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifdef COREAUDIO_ENABLED
#ifndef AUDIO_DRIVER_COREAUDIO_H
#define AUDIO_DRIVER_COREAUDIO_H
#include "servers/audio_server.h"
#include <AudioUnit/AudioUnit.h>
#ifdef OSX_ENABLED
#include <CoreAudio/AudioHardware.h>
#endif
class AudioDriverCoreAudio : public AudioDriver {
AudioComponentInstance audio_unit;
AudioComponentInstance input_unit;
bool active;
Mutex mutex;
String device_name;
String capture_device_name;
int mix_rate;
unsigned int channels;
unsigned int capture_channels;
unsigned int buffer_frames;
Vector<int32_t> samples_in;
Vector<int16_t> input_buf;
#ifdef OSX_ENABLED
Array _get_device_list(bool capture = false);
void _set_device(const String &device, bool capture = false);
static OSStatus input_device_address_cb(AudioObjectID inObjectID,
UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses,
void *inClientData);
static OSStatus output_device_address_cb(AudioObjectID inObjectID,
UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses,
void *inClientData);
#endif
static OSStatus output_callback(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *inTimeStamp,
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList *ioData);
static OSStatus input_callback(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *inTimeStamp,
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList *ioData);
Error capture_init();
void capture_finish();
public:
const char *get_name() const {
return "CoreAudio";
};
virtual Error init();
virtual void start();
virtual int get_mix_rate() const;
virtual SpeakerMode get_speaker_mode() const;
virtual void lock();
virtual void unlock();
virtual void finish();
virtual Error capture_start();
virtual Error capture_stop();
bool try_lock();
void stop();
#ifdef OSX_ENABLED
virtual Array get_device_list();
virtual String get_device();
virtual void set_device(String device);
virtual Array capture_get_device_list();
virtual void capture_set_device(const String &p_name);
virtual String capture_get_device();
#endif
AudioDriverCoreAudio();
~AudioDriverCoreAudio();
};
#endif
#endif