blob: 0706c2ae18d3e268d8d0ba6016a566169baa3257 (
plain)
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
|
// Copyright 2023 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "DolphinQt/TAS/TASControlState.h"
#include <atomic>
int TASControlState::GetValue() const
{
const State ui_thread_state = m_ui_thread_state.load(std::memory_order_relaxed);
const State cpu_thread_state = m_cpu_thread_state.load(std::memory_order_relaxed);
return (ui_thread_state.version != cpu_thread_state.version ? cpu_thread_state : ui_thread_state)
.value;
}
bool TASControlState::OnControllerValueChanged(int new_value)
{
const State cpu_thread_state = m_cpu_thread_state.load(std::memory_order_relaxed);
if (cpu_thread_state.value == new_value)
{
// The CPU thread state is already up to date with the controller. No need to do anything
return false;
}
const State new_state{static_cast<int>(cpu_thread_state.version + 1), new_value};
m_cpu_thread_state.store(new_state, std::memory_order_relaxed);
return true;
}
void TASControlState::OnUIValueChanged(int new_value)
{
const State ui_thread_state = m_ui_thread_state.load(std::memory_order_relaxed);
const State new_state{ui_thread_state.version, new_value};
m_ui_thread_state.store(new_state, std::memory_order_relaxed);
}
int TASControlState::ApplyControllerValueChange()
{
const State ui_thread_state = m_ui_thread_state.load(std::memory_order_relaxed);
const State cpu_thread_state = m_cpu_thread_state.load(std::memory_order_relaxed);
if (ui_thread_state.version == cpu_thread_state.version)
{
// The UI thread state is already up to date with the CPU thread. No need to do anything
return ui_thread_state.value;
}
else
{
m_ui_thread_state.store(cpu_thread_state, std::memory_order_relaxed);
return cpu_thread_state.value;
}
}
|
