Moving imgui to the new ImmediateDrawer.

src/xenia/ui/imgui_drawer.h

@@ -0,0 +1,51 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_UI_IMGUI_DRAWER_H_
+#define XENIA_UI_IMGUI_DRAWER_H_
+
+#include <memory>
+#include <vector>
+
+#include "xenia/ui/immediate_drawer.h"
+
+struct ImDrawData;
+
+namespace xe {
+namespace ui {
+
+class GraphicsContext;
+class Window;
+
+class ImGuiDrawer {
+ public:
+  ImGuiDrawer(Window* window);
+  ~ImGuiDrawer();
+
+ protected:
+  void Initialize();
+  void SetupFont();
+
+  void RenderDrawLists(ImDrawData* data);
+
+  static ImGuiDrawer* global_drawer_;
+
+  Window* window_ = nullptr;
+  GraphicsContext* graphics_context_ = nullptr;
+
+  std::vector<ImmediateVertex> vertices_;
+  std::vector<uint16_t> indices_;
+
+  std::unique_ptr<ImmediateTexture> font_texture_;
+};
+
+}  // namespace ui
+}  // namespace xe
+
+#endif  // XENIA_UI_IMGUI_DRAWER_H_