Fixed uneeded copies of TriangleVertices

src/main.cpp

@@ -1,6 +1,10 @@
 
 #include <GLFW/glfw3.h>
+#include <cstdint>
 #include <vulkan/vulkan_core.h>
+#include "imgui.h"
+#include "imgui_impl_glfw.h"
+#include "imgui_impl_vulkan.h"
 
 #include "utilities/Logger.h"
 #include "GlfwWindowManager.h"
@@ -40,10 +44,42 @@ private:
 	GlfwWindowManager WindowManager;
 	VulkanContext	  VkContext;
 
+	bool bShowImGui = true;
+	bool bShowDemo = false;
+
+	static void KeyCallback(GLFWwindow* Window, int Key, int Scancode, int Action, int Mods)
+	{
+		auto App = reinterpret_cast<HelloTriangleApplication*>(glfwGetWindowUserPointer(Window));
+		if (Action == GLFW_PRESS || Action == GLFW_REPEAT)
+		{
+			App->OnKey(Key);
+		}
+	}
+
+	void OnKey(int Key)
+	{
+		switch (Key)
+		{
+			case GLFW_KEY_O:
+				bShowImGui = !bShowImGui;
+				Log::Info("ImGui visibility toggled: " + std::string(bShowImGui ? "ON" : "OFF"));
+				break;
+			case GLFW_KEY_L:
+				bShowDemo = !bShowDemo;
+				Log::Info("Demo window toggled: " + std::string(bShowDemo ? "ON" : "OFF"));
+				break;
+		}
+	}
+
 	void Initialization()
 	{
 		InitGlfw();
 		InitVulkan();
+
+		IMGUI_CHECKVERSION();
+		ImGui::CreateContext();
+
+		VkContext.InitImGui();
 	}
 
 	void InitVulkan()
@@ -52,9 +88,8 @@ private:
 			Settings.bValidationEnabled,
 			Settings.bVerboseLogging,
 			WindowManager.GetWindow(),
-			TriangleVertices
 		};
-		VkContext.Initialize(Config);
+		VkContext.Initialize(Config, TriangleVertices);
 	}
 
 	void InitGlfw()
@@ -70,6 +105,8 @@ private:
 
 		glfwSetWindowUserPointer(WindowManager.GetWindow(), this);
 		glfwSetFramebufferSizeCallback(WindowManager.GetWindow(), FramebufferResizeCallback);
+
+		WindowManager.SetKeyCallback(KeyCallback);
 	}
 
 	static void FramebufferResizeCallback(GLFWwindow* Window, int Width, int Height)
@@ -78,25 +115,43 @@ private:
 		App->VkContext.SetFramebufferResized(true);
 	}
 
-	void DrawFrame()
-	{
-		VkContext.DrawFrame();
-	}
-
 	void MainLoop()
 	{
+		VkPhysicalDeviceProperties Properties{};
+		vkGetPhysicalDeviceProperties(VkContext.DeviceManager.GetPhysicalDevice(), &Properties);
+
 		while (!WindowManager.ShouldClose())
 		{
 			WindowManager.PollEvents();
-			DrawFrame();
+
+			if (bShowImGui)
+			{
+				ImGui_ImplVulkan_NewFrame();
+				ImGui_ImplGlfw_NewFrame();
+				ImGui::NewFrame();
+				if (bShowDemo)
+				{
+					ImGui::ShowDemoWindow();
+				}
+				else
+				{
+					ImGui::Begin(Properties.deviceName);
+					ImGui::Text("Application average %.1f FPS", ImGui::GetIO().Framerate);
+					ImGui::End();
+				}
+			}
+
+			VkContext.DrawFrame(bShowImGui, TriangleVertices.size());
 		}
 	}
 
 	void Cleanup()
 	{
 		Log::Info("Cleaning up...");
+
 		VkContext.Cleanup();
 		WindowManager.Cleanup();
+		ImGui::DestroyContext();
 	}
 };