virtualx-engine/platform/android/audio_driver_opensl.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- `ShaderRD` contained an `std::mutex`, which has been replaced by `Mutex`.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

114 lines
3.8 KiB
C++

/*************************************************************************/
/* audio_driver_opensl.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). */
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/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/*************************************************************************/
#ifndef AUDIO_DRIVER_OPENSL_H
#define AUDIO_DRIVER_OPENSL_H
#include "core/os/mutex.h"
#include "servers/audio_server.h"
#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
class AudioDriverOpenSL : public AudioDriver {
bool active;
Mutex mutex;
enum {
BUFFER_COUNT = 2
};
bool pause;
uint32_t buffer_size;
int16_t *buffers[BUFFER_COUNT];
int32_t *mixdown_buffer;
int last_free;
Vector<int16_t> rec_buffer;
SLPlayItf playItf;
SLRecordItf recordItf;
SLObjectItf sl;
SLEngineItf EngineItf;
SLObjectItf OutputMix;
SLVolumeItf volumeItf;
SLObjectItf player;
SLObjectItf recorder;
SLAndroidSimpleBufferQueueItf bufferQueueItf;
SLAndroidSimpleBufferQueueItf recordBufferQueueItf;
SLDataSource audioSource;
SLDataFormat_PCM pcm;
SLDataSink audioSink;
SLDataLocator_OutputMix locator_outputmix;
SLBufferQueueState state;
static AudioDriverOpenSL *s_ad;
void _buffer_callback(
SLAndroidSimpleBufferQueueItf queueItf);
static void _buffer_callbacks(
SLAndroidSimpleBufferQueueItf queueItf,
void *pContext);
void _record_buffer_callback(
SLAndroidSimpleBufferQueueItf queueItf);
static void _record_buffer_callbacks(
SLAndroidSimpleBufferQueueItf queueItf,
void *pContext);
virtual Error capture_init_device();
public:
void set_singleton();
virtual const char *get_name() const;
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 void set_pause(bool p_pause);
virtual Error capture_start();
virtual Error capture_stop();
AudioDriverOpenSL();
};
#endif // AUDIO_DRIVER_ANDROID_H