blob: 6c76c36a74801c7d4e7c37a343d09daa2f0e715f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <array>
#include <atomic>
#include <functional>
#include <mutex>
#include <thread>
#include "audio_core/audio_event.h"
#include "core/hle/service/audio/errors.h"
namespace AudioCore {
/**
* The AudioManager's main purpose is to wait for buffer events for the audio in and out managers,
* and call an associated callback to release buffers.
*
* Execution pattern is:
* Buffers appended ->
* Buffers queued and played by the backend stream ->
* When consumed, set the corresponding manager event and signal the audio manager ->
* Consumed buffers are released, game is signalled ->
* Game appends more buffers.
*
* This is only used by audio in and audio out.
*/
class AudioManager {
using BufferEventFunc = std::function<void()>;
public:
explicit AudioManager();
/**
* Shutdown the audio manager.
*/
void Shutdown();
/**
* Register the out manager, keeping a function to be called when the out event is signalled.
*
* @param buffer_func - Function to be called on signal.
* @return Result code.
*/
Result SetOutManager(BufferEventFunc buffer_func);
/**
* Register the in manager, keeping a function to be called when the in event is signalled.
*
* @param buffer_func - Function to be called on signal.
* @return Result code.
*/
Result SetInManager(BufferEventFunc buffer_func);
/**
* Set an event to signalled, and signal the thread.
*
* @param type - Manager type to set.
* @param signalled - Set the event to true or false?
*/
void SetEvent(Event::Type type, bool signalled);
private:
/**
* Main thread, waiting on a manager signal and calling the registered function.
*/
void ThreadFunc();
/// Is the main thread running?
std::atomic<bool> running{};
/// Unused
bool needs_update{};
/// Events to be set and signalled
Event events{};
/// Callbacks for each manager
std::array<BufferEventFunc, 3> buffer_events{};
/// General lock
std::mutex lock{};
/// Main thread for waiting and callbacks
std::jthread thread;
};
} // namespace AudioCore
|
