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src/frontend/CMakeLists.txt

@@ -53,6 +53,8 @@ add_executable(kaizen-qt
   main.cpp
   KaizenQt.hpp
   KaizenQt.cpp
+  RenderWidget.cpp
+  RenderWidget.hpp
   EmuThread.hpp
   EmuThread.cpp
   mainwindow.ui

src/frontend/KaizenQt.cpp

@@ -2,17 +2,13 @@
 #include <QMessageBox>
 #include <QApplication>
 
-KaizenQt::KaizenQt() noexcept
+KaizenQt::KaizenQt() noexcept : mainWindow(new MainWindowController), emuThread(new EmuThread(mainWindow)) {
-  : mainWindow(new MainWindowController),
-  emuThread(new EmuThread(mainWindow))
-{
   ConnectMainWindowSignalsToSlots();
 
   mainWindow->show();
 }
 
-void KaizenQt::ConnectMainWindowSignalsToSlots() noexcept
+void KaizenQt::ConnectMainWindowSignalsToSlots() noexcept {
-{
   connect(mainWindow, &MainWindowController::OpenROM, this, &KaizenQt::LoadROM);
   connect(mainWindow, &MainWindowController::Exit, this, []() {
     QApplication::quit();
@@ -22,8 +18,7 @@ void KaizenQt::ConnectMainWindowSignalsToSlots() noexcept
   connect(mainWindow, &MainWindowController::Pause, emuThread, &EmuThread::TogglePause);
 }
 
-void KaizenQt::LoadROM(const QString& file_name) noexcept
+void KaizenQt::LoadROM(const QString& file_name) noexcept {
-{
   emuThread->core.LoadROM(file_name.toStdString());
   emuThread->start();
 }

src/frontend/KaizenQt.hpp

@@ -1,6 +1,26 @@
 #pragma once
-#include <MainWindow.hpp>
 #include <EmuThread.hpp>
+#include <MainWindow.hpp>
+
+enum class CompositorCategory {
+  Windows, MacOS, XCB, Wayland
+};
+
+static inline CompositorCategory GetOSCompositorCategory() {
+  const QString platform_name = QGuiApplication::platformName();
+  if (platform_name == QStringLiteral("windows"))
+    return CompositorCategory::Windows;
+  else if (platform_name == QStringLiteral("xcb"))
+    return CompositorCategory::XCB;
+  else if (platform_name == QStringLiteral("wayland") ||
+    platform_name == QStringLiteral("wayland-egl"))
+    return CompositorCategory::Wayland;
+  else if (platform_name == QStringLiteral("cocoa") || platform_name == QStringLiteral("ios"))
+    return CompositorCategory::MacOS;
+
+  Util::error("Unknown Qt platform!");
+  return CompositorCategory::Windows;
+}
 
 class KaizenQt : public QObject {
   Q_OBJECT

src/frontend/MainWindow.cpp

@@ -1,20 +1,17 @@
-#include <MainWindow.hpp>
 #include <QFileDialog>
 #include <QMessageBox>
+#include <MainWindow.hpp>
 
-MainWindowController::MainWindowController() noexcept
+MainWindowController::MainWindowController() noexcept {
-{
   view.setupUi(this);
   ConnectSignalsToSlots();
 }
 
-void MainWindowController::ConnectSignalsToSlots() noexcept
+void MainWindowController::ConnectSignalsToSlots() noexcept {
-{
   connect(view.actionOpen, &QAction::triggered, this, [this]() {
     QString file_name = QFileDialog::getOpenFileName(this);
 
-    if (!file_name.isEmpty())
+    if (!file_name.isEmpty()) {
-    {
       view.actionPause->setEnabled(true);
       view.actionReset->setEnabled(true);
       view.actionStop->setEnabled(true);

src/frontend/MainWindow.hpp

@@ -1,6 +1,7 @@
 #pragma once
-#include <QMainWindow>
 #include "ui_mainwindow.h"
+#include <QMainWindow>
+#include <QApplication>
 
 class MainWindowController : public QMainWindow
 {
@@ -15,7 +16,7 @@ private:
   Ui::MainWindow view;
   bool textPauseToggle = false;
 
-signals:
+Q_SIGNALS:
   void OpenROM(const QString& rom_file);
   void Exit();
   void Reset();

src/frontend/RenderWidget.cpp

@@ -0,0 +1,31 @@
+#include <RenderWidget.hpp>
+#include <KaizenQt.hpp>
+
+RenderWidget::RenderWidget(QWidget* parent) : QWidget(parent) {
+  if (volkInitialize() != VK_SUCCESS) {
+    Util::panic("Could not initialize Vulkan loader!");
+  }
+
+  create();
+
+  setAttribute(Qt::WA_NativeWindow);
+  setAttribute(Qt::WA_PaintOnScreen);
+  if (GetOSCompositorCategory() == CompositorCategory::Wayland) {
+    setAttribute(Qt::WA_DontCreateNativeAncestors);
+  }
+
+  if (GetOSCompositorCategory() == CompositorCategory::MacOS) {
+    windowHandle()->setSurfaceType(QWindow::MetalSurface);
+  }
+  else {
+    windowHandle()->setSurfaceType(QWindow::VulkanSurface);
+  }
+
+  instance.create();
+  windowHandle()->setVulkanInstance(&instance);
+
+  wsiPlatform = new QtWSIPlatform(windowHandle());
+  windowInfo = std::make_unique<QtParallelRdpWindowInfo>(windowHandle());
+
+  LoadWSIPlatform(wsiPlatform, std::move(windowInfo));
+}

src/frontend/RenderWidget.hpp

@@ -0,0 +1,75 @@
+#pragma once
+#undef signals
+#include <ParallelRDPWrapper.hpp>
+#include <QWidget>
+#include <QWindow>
+#include <QVulkanInstance>
+
+class QtParallelRdpWindowInfo : public ParallelRdpWindowInfo {
+public:
+  QtParallelRdpWindowInfo(QWindow* window) : window(window) {}
+  CoordinatePair get_window_size() {
+    CoordinatePair{ static_cast<float>(window->width()), static_cast<float>(window->height()) };
+  }
+private:
+  QWindow* window;
+};
+
+class QtWSIPlatform final : public Vulkan::WSIPlatform {
+public:
+  QtWSIPlatform(QWindow* window) : window(window) {}
+
+  std::vector<const char*> get_instance_extensions() override {
+    auto vec = std::vector<const char*>();
+
+    for (const auto& ext : window->vulkanInstance()->extensions()) {
+      vec.push_back(ext);
+    }
+
+    return vec;
+  }
+
+  VkSurfaceKHR create_surface(VkInstance, VkPhysicalDevice) override {
+    return QVulkanInstance::surfaceForWindow(window);
+  }
+
+  uint32_t get_surface_width() override {
+    return 640;
+  }
+
+  uint32_t get_surface_height() override {
+    return 480;
+  }
+
+  bool alive(Vulkan::WSI&) override {
+    return true;
+  }
+
+  void poll_input() override { }
+
+  void event_frame_tick(double frame, double elapsed) override { }
+
+  const VkApplicationInfo* get_application_info() override {
+    return &appInfo;
+  }
+
+  VkApplicationInfo appInfo{
+    .sType = VK_STRUCTURE_TYPE_APPLICATION_INFO,
+    .apiVersion = VK_API_VERSION_1_3
+  };
+private:
+  QWindow* window;
+};
+
+class RenderWidget : public QWidget {
+public:
+  explicit RenderWidget(QWidget* parent);
+
+  QPaintEngine* paintEngine() const override {
+    return nullptr;
+  }
+private:
+  std::unique_ptr<ParallelRdpWindowInfo> windowInfo;
+  QtWSIPlatform* wsiPlatform;
+  QVulkanInstance instance;
+};

src/frontend/main.cpp

@@ -1,7 +1,7 @@
+#include <KaizenQt.hpp>
 #include <QApplication>
 #include <QCommandLineParser>
 #include <QCommandLineOption>
-#include <KaizenQt.hpp>
 
 int main(int argc, char** argv) {
   QApplication app(argc, argv);

src/frontend/mainwindow.ui

@@ -30,6 +30,9 @@
     <property name="bottomMargin">
      <number>0</number>
     </property>
+	<item>
+	 <widget class="RenderWidget" name="vulkanWidget"/>
+	</item>
    </layout>
   </widget>
   <widget class="QMenuBar" name="menubar">
@@ -119,6 +122,13 @@
    </property>
   </action>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>Renderer</class>
+   <extends>QWidget</extends>
+   <header>RenderWidget.hpp</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections/>
 </ui>