chore: update project branding to citron

Signed-off-by: Zephyron <zephyron@citron-emu.org>

src/citron/debugger/console.cpp

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#ifdef _WIN32
+#include <windows.h>
+
+#include <wincon.h>
+#endif
+
+#include "common/logging/backend.h"
+#include "citron/debugger/console.h"
+#include "citron/uisettings.h"
+
+namespace Debugger {
+void ToggleConsole() {
+    static bool console_shown = false;
+    if (console_shown == UISettings::values.show_console.GetValue()) {
+        return;
+    } else {
+        console_shown = UISettings::values.show_console.GetValue();
+    }
+
+    using namespace Common::Log;
+#if defined(_WIN32) && !defined(_DEBUG)
+    FILE* temp;
+    if (UISettings::values.show_console) {
+        if (AllocConsole()) {
+            // The first parameter for freopen_s is a out parameter, so we can just ignore it
+            freopen_s(&temp, "CONIN$", "r", stdin);
+            freopen_s(&temp, "CONOUT$", "w", stdout);
+            freopen_s(&temp, "CONOUT$", "w", stderr);
+            SetConsoleOutputCP(65001);
+            SetColorConsoleBackendEnabled(true);
+        }
+    } else {
+        if (FreeConsole()) {
+            // In order to close the console, we have to also detach the streams on it.
+            // Just redirect them to NUL if there is no console window
+            SetColorConsoleBackendEnabled(false);
+            freopen_s(&temp, "NUL", "r", stdin);
+            freopen_s(&temp, "NUL", "w", stdout);
+            freopen_s(&temp, "NUL", "w", stderr);
+        }
+    }
+#else
+    SetColorConsoleBackendEnabled(UISettings::values.show_console.GetValue());
+#endif
+}
+} // namespace Debugger

src/citron/debugger/console.h

@@ -0,0 +1,13 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+namespace Debugger {
+
+/**
+ * Uses the WINAPI to hide or show the stderr console. This function is a placeholder until we can
+ * get a real qt logging window which would work for all platforms.
+ */
+void ToggleConsole();
+} // namespace Debugger

src/citron/debugger/controller.cpp

@@ -0,0 +1,116 @@
+// SPDX-FileCopyrightText: 2015 Citra Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <QAction>
+#include <QLayout>
+#include <QString>
+#include "common/settings.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "input_common/drivers/tas_input.h"
+#include "input_common/main.h"
+#include "citron/configuration/configure_input_player_widget.h"
+#include "citron/debugger/controller.h"
+
+ControllerDialog::ControllerDialog(Core::HID::HIDCore& hid_core_,
+                                   std::shared_ptr<InputCommon::InputSubsystem> input_subsystem_,
+                                   QWidget* parent)
+    : QWidget(parent, Qt::Dialog), hid_core{hid_core_}, input_subsystem{input_subsystem_} {
+    setObjectName(QStringLiteral("Controller"));
+    setWindowTitle(tr("Controller P1"));
+    resize(500, 350);
+    setMinimumSize(500, 350);
+    // Enable the maximize button
+    setWindowFlags(windowFlags() | Qt::WindowMaximizeButtonHint);
+
+    widget = new PlayerControlPreview(this);
+    refreshConfiguration();
+    QLayout* layout = new QVBoxLayout(this);
+    layout->setContentsMargins(0, 0, 0, 0);
+    layout->addWidget(widget);
+    setLayout(layout);
+
+    // Configure focus so that widget is focusable and the dialog automatically forwards focus to
+    // it.
+    setFocusProxy(widget);
+    widget->setFocusPolicy(Qt::StrongFocus);
+    widget->setFocus();
+}
+
+void ControllerDialog::refreshConfiguration() {
+    UnloadController();
+    auto* player_1 = hid_core.GetEmulatedController(Core::HID::NpadIdType::Player1);
+    auto* handheld = hid_core.GetEmulatedController(Core::HID::NpadIdType::Handheld);
+    // Display the correct controller
+    controller = handheld->IsConnected() ? handheld : player_1;
+
+    Core::HID::ControllerUpdateCallback engine_callback{
+        .on_change = [this](Core::HID::ControllerTriggerType type) { ControllerUpdate(type); },
+        .is_npad_service = true,
+    };
+    callback_key = controller->SetCallback(engine_callback);
+    widget->SetController(controller);
+    is_controller_set = true;
+}
+
+QAction* ControllerDialog::toggleViewAction() {
+    if (toggle_view_action == nullptr) {
+        toggle_view_action = new QAction(tr("&Controller P1"), this);
+        toggle_view_action->setCheckable(true);
+        toggle_view_action->setChecked(isVisible());
+        connect(toggle_view_action, &QAction::toggled, this, &ControllerDialog::setVisible);
+    }
+
+    return toggle_view_action;
+}
+
+void ControllerDialog::UnloadController() {
+    widget->UnloadController();
+    if (is_controller_set) {
+        controller->DeleteCallback(callback_key);
+        is_controller_set = false;
+    }
+}
+
+void ControllerDialog::showEvent(QShowEvent* ev) {
+    if (toggle_view_action) {
+        toggle_view_action->setChecked(isVisible());
+    }
+    QWidget::showEvent(ev);
+}
+
+void ControllerDialog::hideEvent(QHideEvent* ev) {
+    if (toggle_view_action) {
+        toggle_view_action->setChecked(isVisible());
+    }
+    QWidget::hideEvent(ev);
+}
+
+void ControllerDialog::ControllerUpdate(Core::HID::ControllerTriggerType type) {
+    // TODO(german77): Remove TAS from here
+    switch (type) {
+    case Core::HID::ControllerTriggerType::Button:
+    case Core::HID::ControllerTriggerType::Stick: {
+        const auto buttons_values = controller->GetButtonsValues();
+        const auto stick_values = controller->GetSticks();
+        u64 buttons = 0;
+        std::size_t index = 0;
+        for (const auto& button : buttons_values) {
+            buttons |= button.value ? 1LLU << index : 0;
+            index++;
+        }
+        const InputCommon::TasInput::TasAnalog left_axis = {
+            .x = stick_values.left.x / 32767.f,
+            .y = stick_values.left.y / 32767.f,
+        };
+        const InputCommon::TasInput::TasAnalog right_axis = {
+            .x = stick_values.right.x / 32767.f,
+            .y = stick_values.right.y / 32767.f,
+        };
+        input_subsystem->GetTas()->RecordInput(buttons, left_axis, right_axis);
+        break;
+    }
+    default:
+        break;
+    }
+}

src/citron/debugger/controller.h

@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: 2015 Citra Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <QWidget>
+
+class QAction;
+class QHideEvent;
+class QShowEvent;
+class PlayerControlPreview;
+
+namespace InputCommon {
+class InputSubsystem;
+}
+
+namespace Core::HID {
+class HIDCore;
+class EmulatedController;
+enum class ControllerTriggerType;
+} // namespace Core::HID
+
+class ControllerDialog : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit ControllerDialog(Core::HID::HIDCore& hid_core_,
+                              std::shared_ptr<InputCommon::InputSubsystem> input_subsystem_,
+                              QWidget* parent = nullptr);
+
+    /// Returns a QAction that can be used to toggle visibility of this dialog.
+    QAction* toggleViewAction();
+
+    /// Reloads the widget to apply any changes in the configuration
+    void refreshConfiguration();
+
+    /// Disables events from the emulated controller
+    void UnloadController();
+
+protected:
+    void showEvent(QShowEvent* ev) override;
+    void hideEvent(QHideEvent* ev) override;
+
+private:
+    /// Redirects input from the widget to the TAS driver
+    void ControllerUpdate(Core::HID::ControllerTriggerType type);
+
+    int callback_key;
+    bool is_controller_set{};
+    Core::HID::EmulatedController* controller;
+
+    QAction* toggle_view_action = nullptr;
+    PlayerControlPreview* widget;
+    Core::HID::HIDCore& hid_core;
+    std::shared_ptr<InputCommon::InputSubsystem> input_subsystem;
+};

src/citron/debugger/profiler.cpp

@@ -0,0 +1,229 @@
+// SPDX-FileCopyrightText: 2015 Citra Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <QAction>
+#include <QLayout>
+#include <QMouseEvent>
+#include <QPainter>
+#include <QString>
+#include <QTimer>
+#include "common/common_types.h"
+#include "common/microprofile.h"
+#include "citron/debugger/profiler.h"
+#include "citron/util/util.h"
+
+// Include the implementation of the UI in this file. This isn't in microprofile.cpp because the
+// non-Qt frontends don't need it (and don't implement the UI drawing hooks either).
+#if MICROPROFILE_ENABLED
+#define MICROPROFILEUI_IMPL 1
+#include "common/microprofileui.h"
+
+class MicroProfileWidget : public QWidget {
+public:
+    MicroProfileWidget(QWidget* parent = nullptr);
+
+protected:
+    void paintEvent(QPaintEvent* ev) override;
+    void showEvent(QShowEvent* ev) override;
+    void hideEvent(QHideEvent* ev) override;
+
+    void mouseMoveEvent(QMouseEvent* ev) override;
+    void mousePressEvent(QMouseEvent* ev) override;
+    void mouseReleaseEvent(QMouseEvent* ev) override;
+    void wheelEvent(QWheelEvent* ev) override;
+
+    void keyPressEvent(QKeyEvent* ev) override;
+    void keyReleaseEvent(QKeyEvent* ev) override;
+
+private:
+    /// This timer is used to redraw the widget's contents continuously. To save resources, it only
+    /// runs while the widget is visible.
+    QTimer update_timer;
+    /// Scale the coordinate system appropriately when dpi != 96.
+    qreal x_scale = 1.0, y_scale = 1.0;
+};
+
+#endif
+
+MicroProfileDialog::MicroProfileDialog(QWidget* parent) : QWidget(parent, Qt::Dialog) {
+    setObjectName(QStringLiteral("MicroProfile"));
+    setWindowTitle(tr("&MicroProfile"));
+    resize(1000, 600);
+    // Enable the maximize button
+    setWindowFlags(windowFlags() | Qt::WindowMaximizeButtonHint);
+
+#if MICROPROFILE_ENABLED
+
+    MicroProfileWidget* widget = new MicroProfileWidget(this);
+
+    QLayout* layout = new QVBoxLayout(this);
+    layout->setContentsMargins(0, 0, 0, 0);
+    layout->addWidget(widget);
+    setLayout(layout);
+
+    // Configure focus so that widget is focusable and the dialog automatically forwards focus to
+    // it.
+    setFocusProxy(widget);
+    widget->setFocusPolicy(Qt::StrongFocus);
+    widget->setFocus();
+#endif
+}
+
+QAction* MicroProfileDialog::toggleViewAction() {
+    if (toggle_view_action == nullptr) {
+        toggle_view_action = new QAction(windowTitle(), this);
+        toggle_view_action->setCheckable(true);
+        toggle_view_action->setChecked(isVisible());
+        connect(toggle_view_action, &QAction::toggled, this, &MicroProfileDialog::setVisible);
+    }
+
+    return toggle_view_action;
+}
+
+void MicroProfileDialog::showEvent(QShowEvent* ev) {
+    if (toggle_view_action) {
+        toggle_view_action->setChecked(isVisible());
+    }
+    QWidget::showEvent(ev);
+}
+
+void MicroProfileDialog::hideEvent(QHideEvent* ev) {
+    if (toggle_view_action) {
+        toggle_view_action->setChecked(isVisible());
+    }
+    QWidget::hideEvent(ev);
+}
+
+#if MICROPROFILE_ENABLED
+
+/// There's no way to pass a user pointer to MicroProfile, so this variable is used to make the
+/// QPainter available inside the drawing callbacks.
+static QPainter* mp_painter = nullptr;
+
+MicroProfileWidget::MicroProfileWidget(QWidget* parent) : QWidget(parent) {
+    // Send mouse motion events even when not dragging.
+    setMouseTracking(true);
+
+    MicroProfileSetDisplayMode(1); // Timers screen
+    MicroProfileInitUI();
+
+    connect(&update_timer, &QTimer::timeout, this, qOverload<>(&MicroProfileWidget::update));
+}
+
+void MicroProfileWidget::paintEvent(QPaintEvent* ev) {
+    QPainter painter(this);
+
+    // The units used by Microprofile for drawing are based in pixels on a 96 dpi display.
+    x_scale = qreal(painter.device()->logicalDpiX()) / 96.0;
+    y_scale = qreal(painter.device()->logicalDpiY()) / 96.0;
+    painter.scale(x_scale, y_scale);
+
+    painter.setBackground(Qt::black);
+    painter.eraseRect(rect());
+
+    QFont font = GetMonospaceFont();
+    font.setPixelSize(MICROPROFILE_TEXT_HEIGHT);
+    painter.setFont(font);
+
+    mp_painter = &painter;
+    MicroProfileDraw(rect().width() / x_scale, rect().height() / y_scale);
+    mp_painter = nullptr;
+}
+
+void MicroProfileWidget::showEvent(QShowEvent* ev) {
+    update_timer.start(15); // ~60 Hz
+    QWidget::showEvent(ev);
+}
+
+void MicroProfileWidget::hideEvent(QHideEvent* ev) {
+    update_timer.stop();
+    QWidget::hideEvent(ev);
+}
+
+void MicroProfileWidget::mouseMoveEvent(QMouseEvent* ev) {
+    const auto mouse_position = ev->pos();
+    MicroProfileMousePosition(mouse_position.x() / x_scale, mouse_position.y() / y_scale, 0);
+    ev->accept();
+}
+
+void MicroProfileWidget::mousePressEvent(QMouseEvent* ev) {
+    const auto mouse_position = ev->pos();
+    MicroProfileMousePosition(mouse_position.x() / x_scale, mouse_position.y() / y_scale, 0);
+    MicroProfileMouseButton(ev->buttons() & Qt::LeftButton, ev->buttons() & Qt::RightButton);
+    ev->accept();
+}
+
+void MicroProfileWidget::mouseReleaseEvent(QMouseEvent* ev) {
+    const auto mouse_position = ev->pos();
+    MicroProfileMousePosition(mouse_position.x() / x_scale, mouse_position.y() / y_scale, 0);
+    MicroProfileMouseButton(ev->buttons() & Qt::LeftButton, ev->buttons() & Qt::RightButton);
+    ev->accept();
+}
+
+void MicroProfileWidget::wheelEvent(QWheelEvent* ev) {
+    const auto wheel_position = ev->position().toPoint();
+    MicroProfileMousePosition(wheel_position.x() / x_scale, wheel_position.y() / y_scale,
+                              ev->angleDelta().y() / 120);
+    ev->accept();
+}
+
+void MicroProfileWidget::keyPressEvent(QKeyEvent* ev) {
+    if (ev->key() == Qt::Key_Control) {
+        // Inform MicroProfile that the user is holding Ctrl.
+        MicroProfileModKey(1);
+    }
+    QWidget::keyPressEvent(ev);
+}
+
+void MicroProfileWidget::keyReleaseEvent(QKeyEvent* ev) {
+    if (ev->key() == Qt::Key_Control) {
+        MicroProfileModKey(0);
+    }
+    QWidget::keyReleaseEvent(ev);
+}
+
+// These functions are called by MicroProfileDraw to draw the interface elements on the screen.
+
+void MicroProfileDrawText(int x, int y, u32 hex_color, const char* text, u32 text_length) {
+    // hex_color does not include an alpha, so it must be assumed to be 255
+    mp_painter->setPen(QColor::fromRgb(hex_color));
+
+    // It's impossible to draw a string using a monospaced font with a fixed width per cell in a
+    // way that's reliable across different platforms and fonts as far as I (yuriks) can tell, so
+    // draw each character individually in order to precisely control the text advance.
+    for (u32 i = 0; i < text_length; ++i) {
+        // Position the text baseline 1 pixel above the bottom of the text cell, this gives nice
+        // vertical alignment of text for a wide range of tested fonts.
+        mp_painter->drawText(x, y + MICROPROFILE_TEXT_HEIGHT - 2, QString{QLatin1Char{text[i]}});
+        x += MICROPROFILE_TEXT_WIDTH + 1;
+    }
+}
+
+void MicroProfileDrawBox(int left, int top, int right, int bottom, u32 hex_color,
+                         MicroProfileBoxType type) {
+    QColor color = QColor::fromRgba(hex_color);
+    QBrush brush = color;
+    if (type == MicroProfileBoxTypeBar) {
+        QLinearGradient gradient(left, top, left, bottom);
+        gradient.setColorAt(0.f, color.lighter(125));
+        gradient.setColorAt(1.f, color.darker(125));
+        brush = gradient;
+    }
+    mp_painter->fillRect(left, top, right - left, bottom - top, brush);
+}
+
+void MicroProfileDrawLine2D(u32 vertices_length, float* vertices, u32 hex_color) {
+    // Temporary vector used to convert between the float array and QPointF. Marked static to reuse
+    // the allocation across calls.
+    static std::vector<QPointF> point_buf;
+
+    for (u32 i = 0; i < vertices_length; ++i) {
+        point_buf.emplace_back(vertices[i * 2 + 0], vertices[i * 2 + 1]);
+    }
+
+    // hex_color does not include an alpha, so it must be assumed to be 255
+    mp_painter->setPen(QColor::fromRgb(hex_color));
+    mp_painter->drawPolyline(point_buf.data(), vertices_length);
+    point_buf.clear();
+}
+#endif

src/citron/debugger/profiler.h

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: 2015 Citra Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <QWidget>
+
+class QAction;
+class QHideEvent;
+class QShowEvent;
+
+class MicroProfileDialog : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit MicroProfileDialog(QWidget* parent = nullptr);
+
+    /// Returns a QAction that can be used to toggle visibility of this dialog.
+    QAction* toggleViewAction();
+
+protected:
+    void showEvent(QShowEvent* ev) override;
+    void hideEvent(QHideEvent* ev) override;
+
+private:
+    QAction* toggle_view_action = nullptr;
+};

src/citron/debugger/wait_tree.cpp

@@ -0,0 +1,431 @@
+// SPDX-FileCopyrightText: 2016 Citra Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <array>
+#include <fmt/format.h>
+
+#include "citron/debugger/wait_tree.h"
+#include "citron/uisettings.h"
+
+#include "core/arm/debug.h"
+#include "core/core.h"
+#include "core/hle/kernel/k_class_token.h"
+#include "core/hle/kernel/k_handle_table.h"
+#include "core/hle/kernel/k_process.h"
+#include "core/hle/kernel/k_readable_event.h"
+#include "core/hle/kernel/k_scheduler.h"
+#include "core/hle/kernel/k_synchronization_object.h"
+#include "core/hle/kernel/k_thread.h"
+#include "core/hle/kernel/svc_common.h"
+#include "core/hle/kernel/svc_types.h"
+#include "core/memory.h"
+
+namespace {
+
+constexpr std::array<std::array<Qt::GlobalColor, 2>, 10> WaitTreeColors{{
+    {Qt::GlobalColor::darkGreen, Qt::GlobalColor::green},
+    {Qt::GlobalColor::darkBlue, Qt::GlobalColor::cyan},
+    {Qt::GlobalColor::lightGray, Qt::GlobalColor::lightGray},
+    {Qt::GlobalColor::lightGray, Qt::GlobalColor::lightGray},
+    {Qt::GlobalColor::darkRed, Qt::GlobalColor::red},
+    {Qt::GlobalColor::darkYellow, Qt::GlobalColor::yellow},
+    {Qt::GlobalColor::red, Qt::GlobalColor::red},
+    {Qt::GlobalColor::darkCyan, Qt::GlobalColor::cyan},
+    {Qt::GlobalColor::gray, Qt::GlobalColor::gray},
+}};
+
+bool IsDarkTheme() {
+    const auto& theme = UISettings::values.theme;
+    return theme == std::string("qdarkstyle") || theme == std::string("qdarkstyle_midnight_blue") ||
+           theme == std::string("colorful_dark") || theme == std::string("colorful_midnight_blue");
+}
+
+} // namespace
+
+WaitTreeItem::WaitTreeItem() = default;
+WaitTreeItem::~WaitTreeItem() = default;
+
+QColor WaitTreeItem::GetColor() const {
+    if (IsDarkTheme()) {
+        return QColor(Qt::GlobalColor::white);
+    } else {
+        return QColor(Qt::GlobalColor::black);
+    }
+}
+
+std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeItem::GetChildren() const {
+    return {};
+}
+
+void WaitTreeItem::Expand() {
+    if (IsExpandable() && !expanded) {
+        children = GetChildren();
+        for (std::size_t i = 0; i < children.size(); ++i) {
+            children[i]->parent = this;
+            children[i]->row = i;
+        }
+        expanded = true;
+    }
+}
+
+WaitTreeItem* WaitTreeItem::Parent() const {
+    return parent;
+}
+
+const std::vector<std::unique_ptr<WaitTreeItem>>& WaitTreeItem::Children() const {
+    return children;
+}
+
+bool WaitTreeItem::IsExpandable() const {
+    return false;
+}
+
+std::size_t WaitTreeItem::Row() const {
+    return row;
+}
+
+std::vector<std::unique_ptr<WaitTreeThread>> WaitTreeItem::MakeThreadItemList(
+    Core::System& system) {
+    std::vector<std::unique_ptr<WaitTreeThread>> item_list;
+    std::size_t row = 0;
+    auto add_threads = [&](const std::vector<Kernel::KThread*>& threads) {
+        for (std::size_t i = 0; i < threads.size(); ++i) {
+            if (threads[i]->GetThreadType() == Kernel::ThreadType::User) {
+                item_list.push_back(std::make_unique<WaitTreeThread>(*threads[i], system));
+                item_list.back()->row = row;
+            }
+            ++row;
+        }
+    };
+
+    add_threads(system.GlobalSchedulerContext().GetThreadList());
+
+    return item_list;
+}
+
+WaitTreeText::WaitTreeText(QString t) : text(std::move(t)) {}
+WaitTreeText::~WaitTreeText() = default;
+
+QString WaitTreeText::GetText() const {
+    return text;
+}
+
+WaitTreeCallstack::WaitTreeCallstack(const Kernel::KThread& thread_, Core::System& system_)
+    : thread{thread_}, system{system_} {}
+WaitTreeCallstack::~WaitTreeCallstack() = default;
+
+QString WaitTreeCallstack::GetText() const {
+    return tr("Call stack");
+}
+
+std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeCallstack::GetChildren() const {
+    std::vector<std::unique_ptr<WaitTreeItem>> list;
+
+    if (thread.GetThreadType() != Kernel::ThreadType::User) {
+        return list;
+    }
+
+    if (thread.GetOwnerProcess() == nullptr || !thread.GetOwnerProcess()->Is64Bit()) {
+        return list;
+    }
+
+    auto backtrace = Core::GetBacktraceFromContext(thread.GetOwnerProcess(), thread.GetContext());
+
+    for (auto& entry : backtrace) {
+        std::string s = fmt::format("{:20}{:016X} {:016X} {:016X} {}", entry.module, entry.address,
+                                    entry.original_address, entry.offset, entry.name);
+        list.push_back(std::make_unique<WaitTreeText>(QString::fromStdString(s)));
+    }
+
+    return list;
+}
+
+WaitTreeSynchronizationObject::WaitTreeSynchronizationObject(
+    const Kernel::KSynchronizationObject& object_, Core::System& system_)
+    : object{object_}, system{system_} {}
+WaitTreeSynchronizationObject::~WaitTreeSynchronizationObject() = default;
+
+WaitTreeExpandableItem::WaitTreeExpandableItem() = default;
+WaitTreeExpandableItem::~WaitTreeExpandableItem() = default;
+
+bool WaitTreeExpandableItem::IsExpandable() const {
+    return true;
+}
+
+QString WaitTreeSynchronizationObject::GetText() const {
+    return tr("[%1] %2")
+        .arg(object.GetId())
+        .arg(QString::fromStdString(object.GetTypeObj().GetName()));
+}
+
+std::unique_ptr<WaitTreeSynchronizationObject> WaitTreeSynchronizationObject::make(
+    const Kernel::KSynchronizationObject& object, Core::System& system) {
+    const auto type =
+        static_cast<Kernel::KClassTokenGenerator::ObjectType>(object.GetTypeObj().GetClassToken());
+    switch (type) {
+    case Kernel::KClassTokenGenerator::ObjectType::KReadableEvent:
+        return std::make_unique<WaitTreeEvent>(static_cast<const Kernel::KReadableEvent&>(object),
+                                               system);
+    case Kernel::KClassTokenGenerator::ObjectType::KThread:
+        return std::make_unique<WaitTreeThread>(static_cast<const Kernel::KThread&>(object),
+                                                system);
+    default:
+        return std::make_unique<WaitTreeSynchronizationObject>(object, system);
+    }
+}
+
+std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeSynchronizationObject::GetChildren() const {
+    std::vector<std::unique_ptr<WaitTreeItem>> list;
+
+    auto threads = object.GetWaitingThreadsForDebugging();
+    if (threads.empty()) {
+        list.push_back(std::make_unique<WaitTreeText>(tr("waited by no thread")));
+    } else {
+        list.push_back(std::make_unique<WaitTreeThreadList>(std::move(threads), system));
+    }
+
+    return list;
+}
+
+WaitTreeThread::WaitTreeThread(const Kernel::KThread& thread, Core::System& system_)
+    : WaitTreeSynchronizationObject(thread, system_), system{system_} {}
+WaitTreeThread::~WaitTreeThread() = default;
+
+QString WaitTreeThread::GetText() const {
+    const auto& thread = static_cast<const Kernel::KThread&>(object);
+    QString status;
+    switch (thread.GetState()) {
+    case Kernel::ThreadState::Runnable:
+        if (!thread.IsSuspended()) {
+            status = tr("runnable");
+        } else {
+            status = tr("paused");
+        }
+        break;
+    case Kernel::ThreadState::Waiting:
+        switch (thread.GetWaitReasonForDebugging()) {
+        case Kernel::ThreadWaitReasonForDebugging::Sleep:
+            status = tr("sleeping");
+            break;
+        case Kernel::ThreadWaitReasonForDebugging::IPC:
+            status = tr("waiting for IPC reply");
+            break;
+        case Kernel::ThreadWaitReasonForDebugging::Synchronization:
+            status = tr("waiting for objects");
+            break;
+        case Kernel::ThreadWaitReasonForDebugging::ConditionVar:
+            status = tr("waiting for condition variable");
+            break;
+        case Kernel::ThreadWaitReasonForDebugging::Arbitration:
+            status = tr("waiting for address arbiter");
+            break;
+        case Kernel::ThreadWaitReasonForDebugging::Suspended:
+            status = tr("waiting for suspend resume");
+            break;
+        default:
+            status = tr("waiting");
+            break;
+        }
+        break;
+    case Kernel::ThreadState::Initialized:
+        status = tr("initialized");
+        break;
+    case Kernel::ThreadState::Terminated:
+        status = tr("terminated");
+        break;
+    default:
+        status = tr("unknown");
+        break;
+    }
+
+    const auto& context = thread.GetContext();
+    const QString pc_info = tr(" PC = 0x%1 LR = 0x%2")
+                                .arg(context.pc, 8, 16, QLatin1Char{'0'})
+                                .arg(context.lr, 8, 16, QLatin1Char{'0'});
+    return QStringLiteral("%1%2 (%3) ")
+        .arg(WaitTreeSynchronizationObject::GetText(), pc_info, status);
+}
+
+QColor WaitTreeThread::GetColor() const {
+    const std::size_t color_index = IsDarkTheme() ? 1 : 0;
+
+    const auto& thread = static_cast<const Kernel::KThread&>(object);
+    switch (thread.GetState()) {
+    case Kernel::ThreadState::Runnable:
+        if (!thread.IsSuspended()) {
+            return QColor(WaitTreeColors[0][color_index]);
+        } else {
+            return QColor(WaitTreeColors[2][color_index]);
+        }
+    case Kernel::ThreadState::Waiting:
+        switch (thread.GetWaitReasonForDebugging()) {
+        case Kernel::ThreadWaitReasonForDebugging::IPC:
+            return QColor(WaitTreeColors[4][color_index]);
+        case Kernel::ThreadWaitReasonForDebugging::Sleep:
+            return QColor(WaitTreeColors[5][color_index]);
+        case Kernel::ThreadWaitReasonForDebugging::Synchronization:
+        case Kernel::ThreadWaitReasonForDebugging::ConditionVar:
+        case Kernel::ThreadWaitReasonForDebugging::Arbitration:
+        case Kernel::ThreadWaitReasonForDebugging::Suspended:
+            return QColor(WaitTreeColors[6][color_index]);
+            break;
+        default:
+            return QColor(WaitTreeColors[3][color_index]);
+        }
+    case Kernel::ThreadState::Initialized:
+        return QColor(WaitTreeColors[7][color_index]);
+    case Kernel::ThreadState::Terminated:
+        return QColor(WaitTreeColors[8][color_index]);
+    default:
+        return WaitTreeItem::GetColor();
+    }
+}
+
+std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeThread::GetChildren() const {
+    std::vector<std::unique_ptr<WaitTreeItem>> list(WaitTreeSynchronizationObject::GetChildren());
+
+    const auto& thread = static_cast<const Kernel::KThread&>(object);
+
+    QString processor;
+    switch (thread.GetActiveCore()) {
+    case Kernel::Svc::IdealCoreUseProcessValue:
+        processor = tr("ideal");
+        break;
+    default:
+        processor = tr("core %1").arg(thread.GetActiveCore());
+        break;
+    }
+
+    list.push_back(std::make_unique<WaitTreeText>(tr("processor = %1").arg(processor)));
+    list.push_back(std::make_unique<WaitTreeText>(
+        tr("affinity mask = %1").arg(thread.GetAffinityMask().GetAffinityMask())));
+    list.push_back(std::make_unique<WaitTreeText>(tr("thread id = %1").arg(thread.GetThreadId())));
+    list.push_back(std::make_unique<WaitTreeText>(tr("priority = %1(current) / %2(normal)")
+                                                      .arg(thread.GetPriority())
+                                                      .arg(thread.GetBasePriority())));
+    list.push_back(std::make_unique<WaitTreeText>(
+        tr("last running ticks = %1").arg(thread.GetLastScheduledTick())));
+
+    list.push_back(std::make_unique<WaitTreeCallstack>(thread, system));
+
+    return list;
+}
+
+WaitTreeEvent::WaitTreeEvent(const Kernel::KReadableEvent& object_, Core::System& system_)
+    : WaitTreeSynchronizationObject(object_, system_) {}
+WaitTreeEvent::~WaitTreeEvent() = default;
+
+WaitTreeThreadList::WaitTreeThreadList(std::vector<Kernel::KThread*>&& list, Core::System& system_)
+    : thread_list(std::move(list)), system{system_} {}
+WaitTreeThreadList::~WaitTreeThreadList() = default;
+
+QString WaitTreeThreadList::GetText() const {
+    return tr("waited by thread");
+}
+
+std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeThreadList::GetChildren() const {
+    std::vector<std::unique_ptr<WaitTreeItem>> list(thread_list.size());
+    std::transform(thread_list.begin(), thread_list.end(), list.begin(),
+                   [this](const auto& t) { return std::make_unique<WaitTreeThread>(*t, system); });
+    return list;
+}
+
+WaitTreeModel::WaitTreeModel(Core::System& system_, QObject* parent)
+    : QAbstractItemModel(parent), system{system_} {}
+WaitTreeModel::~WaitTreeModel() = default;
+
+QModelIndex WaitTreeModel::index(int row, int column, const QModelIndex& parent) const {
+    if (!hasIndex(row, column, parent))
+        return {};
+
+    if (parent.isValid()) {
+        WaitTreeItem* parent_item = static_cast<WaitTreeItem*>(parent.internalPointer());
+        parent_item->Expand();
+        return createIndex(row, column, parent_item->Children()[row].get());
+    }
+
+    return createIndex(row, column, thread_items[row].get());
+}
+
+QModelIndex WaitTreeModel::parent(const QModelIndex& index) const {
+    if (!index.isValid())
+        return {};
+
+    WaitTreeItem* parent_item = static_cast<WaitTreeItem*>(index.internalPointer())->Parent();
+    if (!parent_item) {
+        return QModelIndex();
+    }
+    return createIndex(static_cast<int>(parent_item->Row()), 0, parent_item);
+}
+
+int WaitTreeModel::rowCount(const QModelIndex& parent) const {
+    if (!parent.isValid())
+        return static_cast<int>(thread_items.size());
+
+    WaitTreeItem* parent_item = static_cast<WaitTreeItem*>(parent.internalPointer());
+    parent_item->Expand();
+    return static_cast<int>(parent_item->Children().size());
+}
+
+int WaitTreeModel::columnCount(const QModelIndex&) const {
+    return 1;
+}
+
+QVariant WaitTreeModel::data(const QModelIndex& index, int role) const {
+    if (!index.isValid())
+        return {};
+
+    switch (role) {
+    case Qt::DisplayRole:
+        return static_cast<WaitTreeItem*>(index.internalPointer())->GetText();
+    case Qt::ForegroundRole:
+        return static_cast<WaitTreeItem*>(index.internalPointer())->GetColor();
+    default:
+        return {};
+    }
+}
+
+void WaitTreeModel::ClearItems() {
+    thread_items.clear();
+}
+
+void WaitTreeModel::InitItems() {
+    thread_items = WaitTreeItem::MakeThreadItemList(system);
+}
+
+WaitTreeWidget::WaitTreeWidget(Core::System& system_, QWidget* parent)
+    : QDockWidget(tr("&Wait Tree"), parent), system{system_} {
+    setObjectName(QStringLiteral("WaitTreeWidget"));
+    view = new QTreeView(this);
+    view->setHeaderHidden(true);
+    setWidget(view);
+    setEnabled(false);
+}
+
+WaitTreeWidget::~WaitTreeWidget() = default;
+
+void WaitTreeWidget::OnDebugModeEntered() {
+    if (!system.IsPoweredOn())
+        return;
+    model->InitItems();
+    view->setModel(model);
+    setEnabled(true);
+}
+
+void WaitTreeWidget::OnDebugModeLeft() {
+    setEnabled(false);
+    view->setModel(nullptr);
+    model->ClearItems();
+}
+
+void WaitTreeWidget::OnEmulationStarting(EmuThread* emu_thread) {
+    model = new WaitTreeModel(system, this);
+    view->setModel(model);
+    setEnabled(false);
+}
+
+void WaitTreeWidget::OnEmulationStopping() {
+    view->setModel(nullptr);
+    delete model;
+    setEnabled(false);
+}

src/citron/debugger/wait_tree.h

@@ -0,0 +1,188 @@
+// SPDX-FileCopyrightText: 2016 Citra Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <cstddef>
+#include <memory>
+#include <vector>
+
+#include <QDockWidget>
+#include <QTreeView>
+
+#include "common/common_types.h"
+#include "core/hle/kernel/k_auto_object.h"
+#include "core/hle/kernel/svc_common.h"
+
+class EmuThread;
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KHandleTable;
+class KReadableEvent;
+class KSynchronizationObject;
+class KThread;
+} // namespace Kernel
+
+class WaitTreeThread;
+
+class WaitTreeItem : public QObject {
+    Q_OBJECT
+public:
+    WaitTreeItem();
+    ~WaitTreeItem() override;
+
+    virtual bool IsExpandable() const;
+    virtual std::vector<std::unique_ptr<WaitTreeItem>> GetChildren() const;
+    virtual QString GetText() const = 0;
+    virtual QColor GetColor() const;
+
+    void Expand();
+    WaitTreeItem* Parent() const;
+    const std::vector<std::unique_ptr<WaitTreeItem>>& Children() const;
+    std::size_t Row() const;
+    static std::vector<std::unique_ptr<WaitTreeThread>> MakeThreadItemList(Core::System& system);
+
+private:
+    std::size_t row;
+    bool expanded = false;
+    WaitTreeItem* parent = nullptr;
+    std::vector<std::unique_ptr<WaitTreeItem>> children;
+};
+
+class WaitTreeText : public WaitTreeItem {
+    Q_OBJECT
+public:
+    explicit WaitTreeText(QString text);
+    ~WaitTreeText() override;
+
+    QString GetText() const override;
+
+private:
+    QString text;
+};
+
+class WaitTreeExpandableItem : public WaitTreeItem {
+    Q_OBJECT
+public:
+    WaitTreeExpandableItem();
+    ~WaitTreeExpandableItem() override;
+
+    bool IsExpandable() const override;
+};
+
+class WaitTreeCallstack : public WaitTreeExpandableItem {
+    Q_OBJECT
+public:
+    explicit WaitTreeCallstack(const Kernel::KThread& thread_, Core::System& system_);
+    ~WaitTreeCallstack() override;
+
+    QString GetText() const override;
+    std::vector<std::unique_ptr<WaitTreeItem>> GetChildren() const override;
+
+private:
+    const Kernel::KThread& thread;
+
+    Core::System& system;
+};
+
+class WaitTreeSynchronizationObject : public WaitTreeExpandableItem {
+    Q_OBJECT
+public:
+    explicit WaitTreeSynchronizationObject(const Kernel::KSynchronizationObject& object_,
+                                           Core::System& system_);
+    ~WaitTreeSynchronizationObject() override;
+
+    static std::unique_ptr<WaitTreeSynchronizationObject> make(
+        const Kernel::KSynchronizationObject& object, Core::System& system);
+    QString GetText() const override;
+    std::vector<std::unique_ptr<WaitTreeItem>> GetChildren() const override;
+
+protected:
+    const Kernel::KSynchronizationObject& object;
+
+private:
+    Core::System& system;
+};
+
+class WaitTreeThread : public WaitTreeSynchronizationObject {
+    Q_OBJECT
+public:
+    explicit WaitTreeThread(const Kernel::KThread& thread, Core::System& system_);
+    ~WaitTreeThread() override;
+
+    QString GetText() const override;
+    QColor GetColor() const override;
+    std::vector<std::unique_ptr<WaitTreeItem>> GetChildren() const override;
+
+private:
+    Core::System& system;
+};
+
+class WaitTreeEvent : public WaitTreeSynchronizationObject {
+    Q_OBJECT
+public:
+    explicit WaitTreeEvent(const Kernel::KReadableEvent& object_, Core::System& system_);
+    ~WaitTreeEvent() override;
+};
+
+class WaitTreeThreadList : public WaitTreeExpandableItem {
+    Q_OBJECT
+public:
+    explicit WaitTreeThreadList(std::vector<Kernel::KThread*>&& list, Core::System& system_);
+    ~WaitTreeThreadList() override;
+
+    QString GetText() const override;
+    std::vector<std::unique_ptr<WaitTreeItem>> GetChildren() const override;
+
+private:
+    std::vector<Kernel::KThread*> thread_list;
+
+    Core::System& system;
+};
+
+class WaitTreeModel : public QAbstractItemModel {
+    Q_OBJECT
+
+public:
+    explicit WaitTreeModel(Core::System& system_, QObject* parent = nullptr);
+    ~WaitTreeModel() override;
+
+    QVariant data(const QModelIndex& index, int role) const override;
+    QModelIndex index(int row, int column, const QModelIndex& parent) const override;
+    QModelIndex parent(const QModelIndex& index) const override;
+    int rowCount(const QModelIndex& parent) const override;
+    int columnCount(const QModelIndex& parent) const override;
+
+    void ClearItems();
+    void InitItems();
+
+private:
+    std::vector<std::unique_ptr<WaitTreeThread>> thread_items;
+
+    Core::System& system;
+};
+
+class WaitTreeWidget : public QDockWidget {
+    Q_OBJECT
+
+public:
+    explicit WaitTreeWidget(Core::System& system_, QWidget* parent = nullptr);
+    ~WaitTreeWidget() override;
+
+public slots:
+    void OnDebugModeEntered();
+    void OnDebugModeLeft();
+
+    void OnEmulationStarting(EmuThread* emu_thread);
+    void OnEmulationStopping();
+
+private:
+    QTreeView* view;
+    WaitTreeModel* model;
+
+    Core::System& system;
+};