godot/drivers/alsa/audio_driver_alsa.h
2023-02-16 16:38:47 +02:00

100 lines
3.6 KiB
C++

/**************************************************************************/
/* audio_driver_alsa.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#ifndef AUDIO_DRIVER_ALSA_H
#define AUDIO_DRIVER_ALSA_H
#ifdef ALSA_ENABLED
#include "core/os/mutex.h"
#include "core/os/thread.h"
#include "core/templates/safe_refcount.h"
#include "servers/audio_server.h"
#ifdef SOWRAP_ENABLED
#include "asound-so_wrap.h"
#else
#include <alsa/asoundlib.h>
#endif
class AudioDriverALSA : public AudioDriver {
Thread thread;
Mutex mutex;
snd_pcm_t *pcm_handle = nullptr;
String output_device_name = "Default";
String new_output_device = "Default";
Vector<int32_t> samples_in;
Vector<int16_t> samples_out;
Error init_output_device();
void finish_output_device();
static void thread_func(void *p_udata);
unsigned int mix_rate = 0;
SpeakerMode speaker_mode;
snd_pcm_uframes_t buffer_frames;
snd_pcm_uframes_t buffer_size;
snd_pcm_uframes_t period_size;
int channels = 0;
SafeFlag active;
SafeFlag exit_thread;
public:
virtual const char *get_name() const override {
return "ALSA";
}
virtual Error init() override;
virtual void start() override;
virtual int get_mix_rate() const override;
virtual SpeakerMode get_speaker_mode() const override;
virtual void lock() override;
virtual void unlock() override;
virtual void finish() override;
virtual PackedStringArray get_output_device_list() override;
virtual String get_output_device() override;
virtual void set_output_device(const String &p_name) override;
AudioDriverALSA() {}
~AudioDriverALSA() {}
};
#endif // ALSA_ENABLED
#endif // AUDIO_DRIVER_ALSA_H