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/*************************************************************************/
/* audio_driver_alsa.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. */
/*************************************************************************/
#include "servers/audio_server.h"
#ifdef ALSA_ENABLED
#include "core/os/mutex.h"
#include "core/os/thread.h"
#include <alsa/asoundlib.h>
class AudioDriverALSA : public AudioDriver {
Thread *thread;
Mutex mutex;
snd_pcm_t *pcm_handle;
String device_name;
String new_device;
Vector<int32_t> samples_in;
Vector<int16_t> samples_out;
Error init_device();
void finish_device();
static void thread_func(void *p_udata);
unsigned int mix_rate;
SpeakerMode speaker_mode;
snd_pcm_uframes_t buffer_frames;
snd_pcm_uframes_t buffer_size;
snd_pcm_uframes_t period_size;
int channels;
bool active;
bool thread_exited;
mutable bool exit_thread;
public:
const char *get_name() const {
return "ALSA";
};
virtual Error init();
virtual void start();
virtual int get_mix_rate() const;
virtual SpeakerMode get_speaker_mode() const;
virtual Array get_device_list();
virtual String get_device();
virtual void set_device(String device);
virtual void lock();
virtual void unlock();
virtual void finish();
AudioDriverALSA();
~AudioDriverALSA();
};
#endif
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