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