code: Prepare frontend for vulkan support

src/citra_qt/bootmanager.cpp

@@ -289,6 +289,22 @@ private:
 };
 #endif
 
+class VulkanRenderWidget : public RenderWidget {
+public:
+    explicit VulkanRenderWidget(GRenderWindow* parent) : RenderWidget(parent) {
+        setAttribute(Qt::WA_NativeWindow);
+        setAttribute(Qt::WA_PaintOnScreen);
+        if (GetWindowSystemType() == Frontend::WindowSystemType::Wayland) {
+            setAttribute(Qt::WA_DontCreateNativeAncestors);
+        }
+        windowHandle()->setSurfaceType(QWindow::VulkanSurface);
+    }
+
+    QPaintEngine* paintEngine() const override {
+        return nullptr;
+    }
+};
+
 struct SoftwareRenderWidget : public RenderWidget {
     explicit SoftwareRenderWidget(GRenderWindow* parent, Core::System& system_)
         : RenderWidget(parent), system(system_) {}
@@ -601,6 +617,9 @@ bool GRenderWindow::InitRenderTarget() {
             return false;
         }
         break;
+    case Settings::GraphicsAPI::Vulkan:
+        InitializeVulkan();
+        break;
     }
 
     // Update the Window System information with the new render target
@@ -686,6 +705,13 @@ bool GRenderWindow::InitializeOpenGL() {
 #endif
 }
 
+void GRenderWindow::InitializeVulkan() {
+    auto child = new VulkanRenderWidget(this);
+    child_widget = child;
+    child_widget->windowHandle()->create();
+    main_context = std::make_unique<DummyContext>();
+}
+
 void GRenderWindow::InitializeSoftware() {
     child_widget = new SoftwareRenderWidget(this, system);
     main_context = std::make_unique<DummyContext>();

src/citra_qt/bootmanager.h

@@ -187,6 +187,7 @@ private:
     void OnMinimalClientAreaChangeRequest(std::pair<u32, u32> minimal_size) override;
 
     bool InitializeOpenGL();
+    void InitializeVulkan();
     void InitializeSoftware();
     bool LoadOpenGL();
 

src/citra_qt/configuration/config.cpp

@@ -483,6 +483,7 @@ void Config::ReadDebuggingValues() {
     ReadBasicSetting(Settings::values.use_gdbstub);
     ReadBasicSetting(Settings::values.gdbstub_port);
     ReadBasicSetting(Settings::values.renderer_debug);
+    ReadBasicSetting(Settings::values.dump_command_buffers);
 
     qt_config->beginGroup(QStringLiteral("LLE"));
     for (const auto& service_module : Service::service_module_map) {
@@ -627,6 +628,10 @@ void Config::ReadRendererValues() {
     qt_config->beginGroup(QStringLiteral("Renderer"));
 
     ReadGlobalSetting(Settings::values.graphics_api);
+    ReadGlobalSetting(Settings::values.physical_device);
+    ReadGlobalSetting(Settings::values.spirv_shader_gen);
+    ReadGlobalSetting(Settings::values.async_shader_compilation);
+    ReadGlobalSetting(Settings::values.async_presentation);
     ReadGlobalSetting(Settings::values.use_hw_shader);
     ReadGlobalSetting(Settings::values.shaders_accurate_mul);
     ReadGlobalSetting(Settings::values.use_disk_shader_cache);
@@ -1107,6 +1112,10 @@ void Config::SaveRendererValues() {
     qt_config->beginGroup(QStringLiteral("Renderer"));
 
     WriteGlobalSetting(Settings::values.graphics_api);
+    WriteGlobalSetting(Settings::values.physical_device);
+    WriteGlobalSetting(Settings::values.spirv_shader_gen);
+    WriteGlobalSetting(Settings::values.async_shader_compilation);
+    WriteGlobalSetting(Settings::values.async_presentation);
     WriteGlobalSetting(Settings::values.use_hw_shader);
     WriteGlobalSetting(Settings::values.shaders_accurate_mul);
     WriteGlobalSetting(Settings::values.use_disk_shader_cache);

src/citra_qt/configuration/configure_graphics.ui

@@ -63,6 +63,11 @@
              <string>OpenGL</string>
             </property>
            </item>
+           <item>
+            <property name="text">
+             <string>Vulkan</string>
+            </property>
+           </item>
           </widget>
          </item>
         </layout>

src/citra_qt/main.cpp

@@ -2470,9 +2470,11 @@ void GMainWindow::ShowMouseCursor() {
 }
 
 void GMainWindow::UpdateAPIIndicator(bool update) {
-    static std::array graphics_apis = {QStringLiteral("SOFTWARE"), QStringLiteral("OPENGL")};
+    static std::array graphics_apis = {QStringLiteral("SOFTWARE"), QStringLiteral("OPENGL"),
+                                       QStringLiteral("VULKAN")};
 
-    static std::array graphics_api_colors = {QStringLiteral("#3ae400"), QStringLiteral("#00ccdd")};
+    static std::array graphics_api_colors = {QStringLiteral("#3ae400"), QStringLiteral("#00ccdd"),
+                                             QStringLiteral("#91242a")};
 
     u32 api_index = static_cast<u32>(Settings::values.graphics_api.GetValue());
     if (update) {