1/**************************************************************************/
2/* audio_driver_dummy.h */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
18/* */
19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
25/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#ifndef AUDIO_DRIVER_DUMMY_H
32#define AUDIO_DRIVER_DUMMY_H
33
34#include "servers/audio_server.h"
35
36#include "core/os/mutex.h"
37#include "core/os/thread.h"
38#include "core/templates/safe_refcount.h"
39
40class AudioDriverDummy : public AudioDriver {
41 Thread thread;
42 Mutex mutex;
43
44 int32_t *samples_in = nullptr;
45
46 static void thread_func(void *p_udata);
47
48 uint32_t buffer_frames = 4096;
49 int32_t mix_rate = -1;
50 SpeakerMode speaker_mode = SPEAKER_MODE_STEREO;
51
52 int channels;
53
54 SafeFlag active;
55 SafeFlag exit_thread;
56
57 bool use_threads = true;
58
59 static AudioDriverDummy *singleton;
60
61public:
62 virtual const char *get_name() const override {
63 return "Dummy";
64 };
65
66 virtual Error init() override;
67 virtual void start() override;
68 virtual int get_mix_rate() const override;
69 virtual SpeakerMode get_speaker_mode() const override;
70
71 virtual void lock() override;
72 virtual void unlock() override;
73 virtual void finish() override;
74
75 void set_use_threads(bool p_use_threads);
76 void set_speaker_mode(SpeakerMode p_mode);
77 void set_mix_rate(int p_rate);
78
79 uint32_t get_channels() const;
80
81 void mix_audio(int p_frames, int32_t *p_buffer);
82
83 static AudioDriverDummy *get_dummy_singleton() { return singleton; }
84
85 AudioDriverDummy();
86 ~AudioDriverDummy() {}
87};
88
89#endif // AUDIO_DRIVER_DUMMY_H
90