[UI] Image post-processing and full presentation/window rework

[GPU] Add FXAA post-processing
[UI] Add FidelityFX FSR and CAS post-processing
[UI] Add blue noise dithering from 10bpc to 8bpc
[GPU] Apply the DC PWL gamma ramp closer to the spec, supporting fully white color
[UI] Allow the GPU CP thread to present on the host directly, bypassing the UI thread OS paint event
[UI] Allow variable refresh rate (or tearing)
[UI] Present the newest frame (restart) on DXGI
[UI] Replace GraphicsContext with a far more advanced Presenter with more coherent surface connection and UI overlay state management
[UI] Connect presentation to windows via the Surface class, not native window handles
[Vulkan] Switch to simpler Vulkan setup with no instance/device separation due to interdependencies and to pass fewer objects around
[Vulkan] Lower the minimum required Vulkan version to 1.0
[UI/GPU] Various cleanup, mainly ComPtr usage
[UI] Support per-monitor DPI awareness v2 on Windows
[UI] DPI-scale Dear ImGui
[UI] Replace the remaining non-detachable window delegates with unified window event and input listeners
[UI] Allow listeners to safely destroy or close the window, and to register/unregister listeners without use-after-free and the ABA problem
[UI] Explicit Z ordering of input listeners and UI overlays, top-down for input, bottom-up for drawing
[UI] Add explicit window lifecycle phases
[UI] Replace Window virtual functions with explicit desired state, its application, actual state, its feedback
[UI] GTK: Apply the initial size to the drawing area
[UI] Limit internal UI frame rate to that of the monitor
[UI] Hide the cursor using a timer instead of polling due to no repeated UI thread paints with GPU CP thread presentation, and only within the window

src/xenia/debug/ui/debug_window.h

@@ -2,7 +2,7 @@
  ******************************************************************************
  * Xenia : Xbox 360 Emulator Research Project                                 *
  ******************************************************************************
- * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Copyright 2022 Ben Vanik. All rights reserved.                             *
  * Released under the BSD license - see LICENSE in the root for more details. *
  ******************************************************************************
  */
@@ -18,7 +18,11 @@
 #include "xenia/cpu/debug_listener.h"
 #include "xenia/cpu/processor.h"
 #include "xenia/emulator.h"
+#include "xenia/ui/imgui_dialog.h"
+#include "xenia/ui/imgui_drawer.h"
+#include "xenia/ui/immediate_drawer.h"
 #include "xenia/ui/menu_item.h"
+#include "xenia/ui/presenter.h"
 #include "xenia/ui/window.h"
 #include "xenia/ui/windowed_app_context.h"
 #include "xenia/xbox.h"
@@ -48,11 +52,24 @@ class DebugWindow : public cpu::DebugListener {
                        cpu::ThreadDebugInfo* thread_info) override;
 
  private:
+  class DebugDialog final : public xe::ui::ImGuiDialog {
+   public:
+    explicit DebugDialog(xe::ui::ImGuiDrawer* imgui_drawer,
+                         DebugWindow& debug_window)
+        : xe::ui::ImGuiDialog(imgui_drawer), debug_window_(debug_window) {}
+
+   protected:
+    void OnDraw(ImGuiIO& io) override;
+
+   private:
+    DebugWindow& debug_window_;
+  };
+
   explicit DebugWindow(Emulator* emulator,
                        xe::ui::WindowedAppContext& app_context);
   bool Initialize();
 
-  void DrawFrame();
+  void DrawFrame(ImGuiIO& io);
   void DrawToolbar();
   void DrawFunctionsPane();
   void DrawSourcePane();
@@ -93,7 +110,10 @@ class DebugWindow : public cpu::DebugListener {
   cpu::Processor* processor_ = nullptr;
   xe::ui::WindowedAppContext& app_context_;
   std::unique_ptr<xe::ui::Window> window_;
-  uint64_t last_draw_tick_count_ = 0;
+  std::unique_ptr<xe::ui::Presenter> presenter_;
+  std::unique_ptr<xe::ui::ImmediateDrawer> immediate_drawer_;
+  std::unique_ptr<xe::ui::ImGuiDrawer> imgui_drawer_;
+  std::unique_ptr<DebugDialog> debug_dialog_;
 
   uintptr_t capstone_handle_ = 0;