Add the currently active graphics system to the window title.

src/xenia/app/emulator_window.cc

@@ -392,6 +392,12 @@ void EmulatorWindow::UpdateTitle() {
     title += L" - " + game_title;
   }
 
+  auto graphics_system = emulator()->graphics_system();
+  if (graphics_system) {
+    auto graphics_name = graphics_system->name();
+    title += L" <" + graphics_name + L">";
+  }
+
   if (Clock::guest_time_scalar() != 1.0) {
     title += xe::format_string(L" (@%.2fx)", Clock::guest_time_scalar());
   }

src/xenia/gpu/gl4/gl4_graphics_system.h

@@ -24,6 +24,8 @@ class GL4GraphicsSystem : public GraphicsSystem {
   GL4GraphicsSystem();
   ~GL4GraphicsSystem() override;
 
+  std::wstring name() const override { return L"GL4"; }
+
   X_STATUS Setup(cpu::Processor* processor, kernel::KernelState* kernel_state,
                  ui::Window* target_window) override;
   void Shutdown() override;

src/xenia/gpu/graphics_system.h

@@ -34,6 +34,8 @@ class GraphicsSystem {
  public:
   virtual ~GraphicsSystem();
 
+  virtual std::wstring name() const = 0;
+
   Memory* memory() const { return memory_; }
   cpu::Processor* processor() const { return processor_; }
   kernel::KernelState* kernel_state() const { return kernel_state_; }

src/xenia/gpu/null/null_graphics_system.h

@@ -24,6 +24,8 @@ class NullGraphicsSystem : public GraphicsSystem {
   NullGraphicsSystem();
   ~NullGraphicsSystem() override;
 
+  std::wstring name() const override { return L"null"; }
+
   X_STATUS Setup(cpu::Processor* processor, kernel::KernelState* kernel_state,
                  ui::Window* target_window) override;
   void Shutdown() override;

src/xenia/gpu/vulkan/vulkan_graphics_system.h

@@ -24,6 +24,8 @@ class VulkanGraphicsSystem : public GraphicsSystem {
   VulkanGraphicsSystem();
   ~VulkanGraphicsSystem() override;
 
+  std::wstring name() const override { return L"Vulkan"; }
+
   X_STATUS Setup(cpu::Processor* processor, kernel::KernelState* kernel_state,
                  ui::Window* target_window) override;
   void Shutdown() override;