Forgot warning push

Remove code used for pre c++20

src/common/atomic_threadsafe_queue.h

@@ -0,0 +1,240 @@
+/*
+Copyright (c) 2020 Erik Rigtorp <erik@rigtorp.se>
+
+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.
+ */
+
+#pragma once
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4324)
+#endif
+
+#include <atomic>
+#include <cassert>
+#include <cstddef> // offsetof
+#include <memory>
+#include <new>
+#include <stdexcept>
+
+namespace Common {
+namespace mpmc {
+static constexpr size_t hardwareInterferenceSize = 64;
+
+template <typename T>
+using AlignedAllocator = std::allocator<T>;
+
+template <typename T>
+struct Slot {
+    ~Slot() noexcept {
+        if (turn & 1) {
+            destroy();
+        }
+    }
+
+    template <typename... Args>
+    void construct(Args&&... args) noexcept {
+        static_assert(std::is_nothrow_constructible<T, Args&&...>::value,
+                      "T must be nothrow constructible with Args&&...");
+        new (&storage) T(std::forward<Args>(args)...);
+    }
+
+    void destroy() noexcept {
+        static_assert(std::is_nothrow_destructible<T>::value, "T must be nothrow destructible");
+        reinterpret_cast<T*>(&storage)->~T();
+    }
+
+    T&& move() noexcept {
+        return reinterpret_cast<T&&>(storage);
+    }
+
+    // Align to avoid false sharing between adjacent slots
+    alignas(hardwareInterferenceSize) std::atomic<size_t> turn = {0};
+    typename std::aligned_storage<sizeof(T), alignof(T)>::type storage;
+};
+
+template <typename T, typename Allocator = AlignedAllocator<Slot<T>>>
+class Queue {
+private:
+    static_assert(std::is_nothrow_copy_assignable<T>::value ||
+                      std::is_nothrow_move_assignable<T>::value,
+                  "T must be nothrow copy or move assignable");
+
+    static_assert(std::is_nothrow_destructible<T>::value, "T must be nothrow destructible");
+
+public:
+    explicit Queue(const size_t capacity, const Allocator& allocator = Allocator())
+        : capacity_(capacity), allocator_(allocator), head_(0), tail_(0) {
+        if (capacity_ < 1) {
+            throw std::invalid_argument("capacity < 1");
+        }
+        // Allocate one extra slot to prevent false sharing on the last slot
+        slots_ = allocator_.allocate(capacity_ + 1);
+        // Allocators are not required to honor alignment for over-aligned types
+        // (see http://eel.is/c++draft/allocator.requirements#10) so we verify
+        // alignment here
+        if (reinterpret_cast<size_t>(slots_) % alignof(Slot<T>) != 0) {
+            allocator_.deallocate(slots_, capacity_ + 1);
+            throw std::bad_alloc();
+        }
+        for (size_t i = 0; i < capacity_; ++i) {
+            new (&slots_[i]) Slot<T>();
+        }
+        static_assert(alignof(Slot<T>) == hardwareInterferenceSize,
+                      "Slot must be aligned to cache line boundary to prevent false sharing");
+        static_assert(sizeof(Slot<T>) % hardwareInterferenceSize == 0,
+                      "Slot size must be a multiple of cache line size to prevent "
+                      "false sharing between adjacent slots");
+        static_assert(sizeof(Queue) % hardwareInterferenceSize == 0,
+                      "Queue size must be a multiple of cache line size to "
+                      "prevent false sharing between adjacent queues");
+        static_assert(offsetof(Queue, tail_) - offsetof(Queue, head_) ==
+                          static_cast<std::ptrdiff_t>(hardwareInterferenceSize),
+                      "head and tail must be a cache line apart to prevent false sharing");
+    }
+
+    ~Queue() noexcept {
+        for (size_t i = 0; i < capacity_; ++i) {
+            slots_[i].~Slot();
+        }
+        allocator_.deallocate(slots_, capacity_ + 1);
+    }
+
+    // non-copyable and non-movable
+    Queue(const Queue&) = delete;
+    Queue& operator=(const Queue&) = delete;
+
+    template <typename... Args>
+    void emplace(Args&&... args) noexcept {
+        static_assert(std::is_nothrow_constructible<T, Args&&...>::value,
+                      "T must be nothrow constructible with Args&&...");
+        auto const head = head_.fetch_add(1);
+        auto& slot = slots_[idx(head)];
+        while (turn(head) * 2 != slot.turn.load(std::memory_order_acquire))
+            ;
+        slot.construct(std::forward<Args>(args)...);
+        slot.turn.store(turn(head) * 2 + 1, std::memory_order_release);
+    }
+
+    template <typename... Args>
+    bool try_emplace(Args&&... args) noexcept {
+        static_assert(std::is_nothrow_constructible<T, Args&&...>::value,
+                      "T must be nothrow constructible with Args&&...");
+        auto head = head_.load(std::memory_order_acquire);
+        for (;;) {
+            auto& slot = slots_[idx(head)];
+            if (turn(head) * 2 == slot.turn.load(std::memory_order_acquire)) {
+                if (head_.compare_exchange_strong(head, head + 1)) {
+                    slot.construct(std::forward<Args>(args)...);
+                    slot.turn.store(turn(head) * 2 + 1, std::memory_order_release);
+                    return true;
+                }
+            } else {
+                auto const prevHead = head;
+                head = head_.load(std::memory_order_acquire);
+                if (head == prevHead) {
+                    return false;
+                }
+            }
+        }
+    }
+
+    void push(const T& v) noexcept {
+        static_assert(std::is_nothrow_copy_constructible<T>::value,
+                      "T must be nothrow copy constructible");
+        emplace(v);
+    }
+
+    template <typename P, typename = typename std::enable_if<
+                              std::is_nothrow_constructible<T, P&&>::value>::type>
+    void push(P&& v) noexcept {
+        emplace(std::forward<P>(v));
+    }
+
+    bool try_push(const T& v) noexcept {
+        static_assert(std::is_nothrow_copy_constructible<T>::value,
+                      "T must be nothrow copy constructible");
+        return try_emplace(v);
+    }
+
+    template <typename P, typename = typename std::enable_if<
+                              std::is_nothrow_constructible<T, P&&>::value>::type>
+    bool try_push(P&& v) noexcept {
+        return try_emplace(std::forward<P>(v));
+    }
+
+    void pop(T& v) noexcept {
+        auto const tail = tail_.fetch_add(1);
+        auto& slot = slots_[idx(tail)];
+        while (turn(tail) * 2 + 1 != slot.turn.load(std::memory_order_acquire))
+            ;
+        v = slot.move();
+        slot.destroy();
+        slot.turn.store(turn(tail) * 2 + 2, std::memory_order_release);
+    }
+
+    bool try_pop(T& v) noexcept {
+        auto tail = tail_.load(std::memory_order_acquire);
+        for (;;) {
+            auto& slot = slots_[idx(tail)];
+            if (turn(tail) * 2 + 1 == slot.turn.load(std::memory_order_acquire)) {
+                if (tail_.compare_exchange_strong(tail, tail + 1)) {
+                    v = slot.move();
+                    slot.destroy();
+                    slot.turn.store(turn(tail) * 2 + 2, std::memory_order_release);
+                    return true;
+                }
+            } else {
+                auto const prevTail = tail;
+                tail = tail_.load(std::memory_order_acquire);
+                if (tail == prevTail) {
+                    return false;
+                }
+            }
+        }
+    }
+
+private:
+    constexpr size_t idx(size_t i) const noexcept {
+        return i % capacity_;
+    }
+
+    constexpr size_t turn(size_t i) const noexcept {
+        return i / capacity_;
+    }
+
+private:
+    const size_t capacity_;
+    Slot<T>* slots_;
+    [[no_unique_address]] Allocator allocator_;
+
+    // Align to avoid false sharing between head_ and tail_
+    alignas(hardwareInterferenceSize) std::atomic<size_t> head_;
+    alignas(hardwareInterferenceSize) std::atomic<size_t> tail_;
+};
+} // namespace mpmc
+
+template <typename T, typename Allocator = mpmc::AlignedAllocator<mpmc::Slot<T>>>
+using MPMCQueue = mpmc::Queue<T, Allocator>;
+
+} // namespace Common
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif

src/input_common/gcadapter/gc_adapter.cpp

@@ -170,7 +170,7 @@ void Adapter::UpdateYuzuSettings(std::size_t port) {
 
     if (pads[port].buttons != 0) {
         pad_status.button = pads[port].last_button;
-        pad_queue.Push(pad_status);
+        pad_queue.push(pad_status);
     }
 
     // Accounting for a threshold here to ensure an intentional press
@@ -181,7 +181,7 @@ void Adapter::UpdateYuzuSettings(std::size_t port) {
             pad_status.axis = static_cast<PadAxes>(i);
             pad_status.axis_value = value;
             pad_status.axis_threshold = axis_threshold;
-            pad_queue.Push(pad_status);
+            pad_queue.push(pad_status);
         }
     }
 }
@@ -478,20 +478,18 @@ bool Adapter::DeviceConnected(std::size_t port) const {
 }
 
 void Adapter::BeginConfiguration() {
-    pad_queue.Clear();
     configuring = true;
 }
 
 void Adapter::EndConfiguration() {
-    pad_queue.Clear();
     configuring = false;
 }
 
-Common::SPSCQueue<GCPadStatus>& Adapter::GetPadQueue() {
+Common::MPMCQueue<GCPadStatus>& Adapter::GetPadQueue() {
     return pad_queue;
 }
 
-const Common::SPSCQueue<GCPadStatus>& Adapter::GetPadQueue() const {
+const Common::MPMCQueue<GCPadStatus>& Adapter::GetPadQueue() const {
     return pad_queue;
 }
 

src/input_common/gcadapter/gc_adapter.h

@@ -8,8 +8,8 @@
 #include <mutex>
 #include <thread>
 #include <unordered_map>
+#include "common/atomic_threadsafe_queue.h"
 #include "common/common_types.h"
-#include "common/threadsafe_queue.h"
 #include "input_common/main.h"
 
 struct libusb_context;
@@ -85,8 +85,8 @@ public:
     void BeginConfiguration();
     void EndConfiguration();
 
-    Common::SPSCQueue<GCPadStatus>& GetPadQueue();
-    const Common::SPSCQueue<GCPadStatus>& GetPadQueue() const;
+    Common::MPMCQueue<GCPadStatus>& GetPadQueue();
+    const Common::MPMCQueue<GCPadStatus>& GetPadQueue() const;
 
     GCController& GetPadState(std::size_t port);
     const GCController& GetPadState(std::size_t port) const;
@@ -145,7 +145,7 @@ private:
 
     libusb_device_handle* usb_adapter_handle = nullptr;
     std::array<GCController, 4> pads;
-    Common::SPSCQueue<GCPadStatus> pad_queue;
+    Common::MPMCQueue<GCPadStatus> pad_queue{1024};
 
     std::thread adapter_input_thread;
     std::thread adapter_scan_thread;

src/input_common/gcadapter/gc_poller.cpp

@@ -7,7 +7,7 @@
 #include <mutex>
 #include <utility>
 #include "common/assert.h"
-#include "common/threadsafe_queue.h"
+#include "common/atomic_threadsafe_queue.h"
 #include "input_common/gcadapter/gc_adapter.h"
 #include "input_common/gcadapter/gc_poller.h"
 
@@ -103,7 +103,7 @@ Common::ParamPackage GCButtonFactory::GetNextInput() const {
     Common::ParamPackage params;
     GCAdapter::GCPadStatus pad;
     auto& queue = adapter->GetPadQueue();
-    while (queue.Pop(pad)) {
+    while (queue.try_pop(pad)) {
         // This while loop will break on the earliest detected button
         params.Set("engine", "gcpad");
         params.Set("port", static_cast<s32>(pad.port));
@@ -263,7 +263,7 @@ Common::ParamPackage GCAnalogFactory::GetNextInput() {
     GCAdapter::GCPadStatus pad;
     Common::ParamPackage params;
     auto& queue = adapter->GetPadQueue();
-    while (queue.Pop(pad)) {
+    while (queue.try_pop(pad)) {
         if (pad.button != GCAdapter::PadButton::Undefined) {
             params.Set("engine", "gcpad");
             params.Set("port", static_cast<s32>(pad.port));

src/input_common/mouse/mouse_input.cpp

@@ -52,7 +52,7 @@ void Mouse::UpdateYuzuSettings() {
         return;
     }
 
-    mouse_queue.Push(MouseStatus{
+    mouse_queue.push(MouseStatus{
         .button = last_button,
     });
 }
@@ -153,7 +153,6 @@ void Mouse::ReleaseAllButtons() {
 void Mouse::BeginConfiguration() {
     buttons = 0;
     last_button = MouseButton::Undefined;
-    mouse_queue.Clear();
     configuring = true;
 }
 
@@ -165,7 +164,6 @@ void Mouse::EndConfiguration() {
         info.data.axis = {0, 0};
     }
     last_button = MouseButton::Undefined;
-    mouse_queue.Clear();
     configuring = false;
 }
 
@@ -205,11 +203,11 @@ bool Mouse::UnlockButton(std::size_t button_) {
     return button_state;
 }
 
-Common::SPSCQueue<MouseStatus>& Mouse::GetMouseQueue() {
+Common::MPMCQueue<MouseStatus>& Mouse::GetMouseQueue() {
     return mouse_queue;
 }
 
-const Common::SPSCQueue<MouseStatus>& Mouse::GetMouseQueue() const {
+const Common::MPMCQueue<MouseStatus>& Mouse::GetMouseQueue() const {
     return mouse_queue;
 }
 

src/input_common/mouse/mouse_input.h

@@ -9,8 +9,8 @@
 #include <stop_token>
 #include <thread>
 
+#include "common/atomic_threadsafe_queue.h"
 #include "common/common_types.h"
-#include "common/threadsafe_queue.h"
 #include "common/vector_math.h"
 #include "core/frontend/input.h"
 #include "input_common/motion_input.h"
@@ -79,8 +79,8 @@ public:
     [[nodiscard]] bool ToggleButton(std::size_t button_);
     [[nodiscard]] bool UnlockButton(std::size_t button_);
 
-    [[nodiscard]] Common::SPSCQueue<MouseStatus>& GetMouseQueue();
-    [[nodiscard]] const Common::SPSCQueue<MouseStatus>& GetMouseQueue() const;
+    [[nodiscard]] Common::MPMCQueue<MouseStatus>& GetMouseQueue();
+    [[nodiscard]] const Common::MPMCQueue<MouseStatus>& GetMouseQueue() const;
 
     [[nodiscard]] MouseData& GetMouseState(std::size_t button);
     [[nodiscard]] const MouseData& GetMouseState(std::size_t button) const;
@@ -109,7 +109,7 @@ private:
     std::jthread update_thread;
     MouseButton last_button{MouseButton::Undefined};
     std::array<MouseInfo, 7> mouse_info;
-    Common::SPSCQueue<MouseStatus> mouse_queue;
+    Common::MPMCQueue<MouseStatus> mouse_queue{1024};
     bool configuring{false};
     int mouse_panning_timout{};
 };

src/input_common/mouse/mouse_poller.cpp

@@ -52,7 +52,7 @@ Common::ParamPackage MouseButtonFactory::GetNextInput() const {
     MouseInput::MouseStatus pad;
     Common::ParamPackage params;
     auto& queue = mouse_input->GetMouseQueue();
-    while (queue.Pop(pad)) {
+    while (queue.try_pop(pad)) {
         // This while loop will break on the earliest detected button
         if (pad.button != MouseInput::MouseButton::Undefined) {
             params.Set("engine", "mouse");
@@ -184,7 +184,7 @@ Common::ParamPackage MouseAnalogFactory::GetNextInput() const {
     MouseInput::MouseStatus pad;
     Common::ParamPackage params;
     auto& queue = mouse_input->GetMouseQueue();
-    while (queue.Pop(pad)) {
+    while (queue.try_pop(pad)) {
         // This while loop will break on the earliest detected button
         if (pad.button != MouseInput::MouseButton::Undefined) {
             params.Set("engine", "mouse");
@@ -227,7 +227,7 @@ Common::ParamPackage MouseMotionFactory::GetNextInput() const {
     MouseInput::MouseStatus pad;
     Common::ParamPackage params;
     auto& queue = mouse_input->GetMouseQueue();
-    while (queue.Pop(pad)) {
+    while (queue.try_pop(pad)) {
         // This while loop will break on the earliest detected button
         if (pad.button != MouseInput::MouseButton::Undefined) {
             params.Set("engine", "mouse");
@@ -275,7 +275,7 @@ Common::ParamPackage MouseTouchFactory::GetNextInput() const {
     MouseInput::MouseStatus pad;
     Common::ParamPackage params;
     auto& queue = mouse_input->GetMouseQueue();
-    while (queue.Pop(pad)) {
+    while (queue.try_pop(pad)) {
         // This while loop will break on the earliest detected button
         if (pad.button != MouseInput::MouseButton::Undefined) {
             params.Set("engine", "mouse");

src/input_common/sdl/sdl_impl.cpp

@@ -46,7 +46,7 @@ static int SDLEventWatcher(void* user_data, SDL_Event* event) {
 
     // Don't handle the event if we are configuring
     if (sdl_state->polling) {
-        sdl_state->event_queue.Push(*event);
+        sdl_state->event_queue.push(*event);
     } else {
         sdl_state->HandleGameControllerEvent(*event);
     }
@@ -1460,7 +1460,6 @@ public:
     explicit SDLPoller(SDLState& state_) : state(state_) {}
 
     void Start([[maybe_unused]] const std::string& device_id) override {
-        state.event_queue.Clear();
         state.polling = true;
     }
 
@@ -1478,7 +1477,7 @@ public:
 
     Common::ParamPackage GetNextInput() override {
         SDL_Event event;
-        while (state.event_queue.Pop(event)) {
+        while (state.event_queue.try_pop(event)) {
             const auto package = FromEvent(event);
             if (package) {
                 return *package;
@@ -1550,7 +1549,7 @@ public:
 
     Common::ParamPackage GetNextInput() override {
         SDL_Event event;
-        while (state.event_queue.Pop(event)) {
+        while (state.event_queue.try_pop(event)) {
             const auto package = FromEvent(event);
             if (package) {
                 return *package;
@@ -1592,7 +1591,7 @@ public:
 
     Common::ParamPackage GetNextInput() override {
         SDL_Event event;
-        while (state.event_queue.Pop(event)) {
+        while (state.event_queue.try_pop(event)) {
             if (event.type != SDL_JOYAXISMOTION) {
                 // Check for a button press
                 auto button_press = button_poller.FromEvent(event);

src/input_common/sdl/sdl_impl.h

@@ -12,8 +12,8 @@
 
 #include <SDL.h>
 
+#include "common/atomic_threadsafe_queue.h"
 #include "common/common_types.h"
-#include "common/threadsafe_queue.h"
 #include "input_common/sdl/sdl.h"
 
 union SDL_Event;
@@ -59,7 +59,7 @@ public:
 
     /// Used by the Pollers during config
     std::atomic<bool> polling = false;
-    Common::SPSCQueue<SDL_Event> event_queue;
+    Common::MPMCQueue<SDL_Event> event_queue{1024};
 
     std::vector<Common::ParamPackage> GetInputDevices() override;
 

src/input_common/udp/client.cpp

@@ -338,7 +338,7 @@ void Client::UpdateYuzuSettings(std::size_t client, std::size_t pad_index,
                   gyro[0], gyro[1], gyro[2], acc[0], acc[1], acc[2]);
     }
     UDPPadStatus pad{
-        .host = clients[client].host,
+        .host = clients[client].host.c_str(),
         .port = clients[client].port,
         .pad_index = pad_index,
     };
@@ -346,12 +346,12 @@ void Client::UpdateYuzuSettings(std::size_t client, std::size_t pad_index,
         if (gyro[i] > 5.0f || gyro[i] < -5.0f) {
             pad.motion = static_cast<PadMotion>(i);
             pad.motion_value = gyro[i];
-            pad_queue.Push(pad);
+            pad_queue.push(pad);
         }
         if (acc[i] > 1.75f || acc[i] < -1.75f) {
             pad.motion = static_cast<PadMotion>(i + 3);
             pad.motion_value = acc[i];
-            pad_queue.Push(pad);
+            pad_queue.push(pad);
         }
     }
 }
@@ -401,12 +401,10 @@ void Client::UpdateTouchInput(Response::TouchPad& touch_pad, std::size_t client,
 }
 
 void Client::BeginConfiguration() {
-    pad_queue.Clear();
     configuring = true;
 }
 
 void Client::EndConfiguration() {
-    pad_queue.Clear();
     configuring = false;
 }
 
@@ -434,11 +432,11 @@ const Input::TouchStatus& Client::GetTouchState() const {
     return touch_status;
 }
 
-Common::SPSCQueue<UDPPadStatus>& Client::GetPadQueue() {
+Common::MPMCQueue<UDPPadStatus>& Client::GetPadQueue() {
     return pad_queue;
 }
 
-const Common::SPSCQueue<UDPPadStatus>& Client::GetPadQueue() const {
+const Common::MPMCQueue<UDPPadStatus>& Client::GetPadQueue() const {
     return pad_queue;
 }
 

src/input_common/udp/client.h

@@ -11,10 +11,10 @@
 #include <string>
 #include <thread>
 #include <tuple>
+#include "common/atomic_threadsafe_queue.h"
 #include "common/common_types.h"
 #include "common/param_package.h"
 #include "common/thread.h"
-#include "common/threadsafe_queue.h"
 #include "common/vector_math.h"
 #include "core/frontend/input.h"
 #include "input_common/motion_input.h"
@@ -46,7 +46,7 @@ enum class PadTouch {
 };
 
 struct UDPPadStatus {
-    std::string host{"127.0.0.1"};
+    const char* host{"127.0.0.1"};
     u16 port{26760};
     std::size_t pad_index{};
     PadMotion motion{PadMotion::Undefined};
@@ -85,8 +85,8 @@ public:
     bool DeviceConnected(std::size_t pad) const;
     void ReloadSockets();
 
-    Common::SPSCQueue<UDPPadStatus>& GetPadQueue();
-    const Common::SPSCQueue<UDPPadStatus>& GetPadQueue() const;
+    Common::MPMCQueue<UDPPadStatus>& GetPadQueue();
+    const Common::MPMCQueue<UDPPadStatus>& GetPadQueue() const;
 
     DeviceStatus& GetPadState(const std::string& host, u16 port, std::size_t pad);
     const DeviceStatus& GetPadState(const std::string& host, u16 port, std::size_t pad) const;
@@ -146,7 +146,7 @@ private:
     static constexpr std::size_t MAX_TOUCH_FINGERS = MAX_UDP_CLIENTS * 2;
     std::array<PadData, MAX_UDP_CLIENTS * PADS_PER_CLIENT> pads{};
     std::array<ClientConnection, MAX_UDP_CLIENTS> clients{};
-    Common::SPSCQueue<UDPPadStatus> pad_queue{};
+    Common::MPMCQueue<UDPPadStatus> pad_queue{1024};
     Input::TouchStatus touch_status{};
     std::array<std::size_t, MAX_TOUCH_FINGERS> finger_id{};
 };

src/input_common/udp/udp.cpp

@@ -59,7 +59,7 @@ Common::ParamPackage UDPMotionFactory::GetNextInput() {
     Common::ParamPackage params;
     CemuhookUDP::UDPPadStatus pad;
     auto& queue = client->GetPadQueue();
-    while (queue.Pop(pad)) {
+    while (queue.try_pop(pad)) {
         if (pad.motion == CemuhookUDP::PadMotion::Undefined || std::abs(pad.motion_value) < 1) {
             continue;
         }

src/video_core/gpu_thread.cpp

@@ -32,7 +32,10 @@ static void RunThread(std::stop_token stop_token, Core::System& system,
     VideoCore::RasterizerInterface* const rasterizer = renderer.ReadRasterizer();
 
     while (!stop_token.stop_requested()) {
-        CommandDataContainer next = state.queue.PopWait(stop_token);
+        CommandDataContainer next;
+        if (!state.queue.try_pop(next)) {
+            continue;
+        }
         if (stop_token.stop_requested()) {
             break;
         }
@@ -119,7 +122,7 @@ u64 ThreadManager::PushCommand(CommandData&& command_data, bool block) {
 
     std::unique_lock lk(state.write_lock);
     const u64 fence{++state.last_fence};
-    state.queue.Push(CommandDataContainer(std::move(command_data), fence, block));
+    state.queue.push(CommandDataContainer(std::move(command_data), fence, block));
 
     if (block) {
         state.cv.wait(lk, thread.get_stop_token(), [this, fence] {

src/video_core/gpu_thread.h

@@ -11,7 +11,7 @@
 #include <thread>
 #include <variant>
 
-#include "common/threadsafe_queue.h"
+#include "common/atomic_threadsafe_queue.h"
 #include "video_core/framebuffer_config.h"
 
 namespace Tegra {
@@ -97,9 +97,9 @@ struct CommandDataContainer {
 
 /// Struct used to synchronize the GPU thread
 struct SynchState final {
-    using CommandQueue = Common::SPSCQueue<CommandDataContainer, true>;
+    using CommandQueue = Common::MPMCQueue<CommandDataContainer>;
     std::mutex write_lock;
-    CommandQueue queue;
+    CommandQueue queue{100000};
     u64 last_fence{};
     std::atomic<u64> signaled_fence{};
     std::condition_variable_any cv;