Triangle posting

https://vulkan-tutorial.com/Vertex_buffers/Staging_buffer

Reached the above part of the tutorial. Adding IMGUI now before
continuing.

src/public/VulkanDeviceManager.h

@@ -0,0 +1,86 @@
+#pragma once
+
+#include <optional>
+#include <vector>
+#include <vulkan/vulkan_core.h>
+
+#define GLFW_INCLUDE_VULKAN
+#include <GLFW/glfw3.h>
+
+struct FDeviceConfig
+{
+	VkInstance	 Instance;
+	bool		 bEnableValidationLayers;
+	VkSurfaceKHR Surface;
+	GLFWwindow*	 Window;
+};
+
+struct QueueFamilyIndices
+{
+	std::optional<uint32_t> GraphicsFamily;
+	std::optional<uint32_t> PresentFamily;
+
+	bool IsComplete()
+	{
+		return GraphicsFamily.has_value() && PresentFamily.has_value();
+	}
+};
+
+struct SwapChainSupportDetails
+{
+	VkSurfaceCapabilitiesKHR		Capabilities;
+	std::vector<VkSurfaceFormatKHR> Formats;
+	std::vector<VkPresentModeKHR>	PresentModes;
+};
+
+class VulkanDeviceManager
+{
+public:
+	VulkanDeviceManager();
+	~VulkanDeviceManager();
+
+	void Initialize(FDeviceConfig InConfig);
+	// VkInstance	 Instance,
+	// bool		 EnableValidationLayers,
+	// VkSurfaceKHR Surface,
+	// GLFWwindow*	 Window);
+
+	void Cleanup();
+
+	void PickPhysicalDevice();
+	void CreateLogicalDevice();
+
+	VkDevice				GetDevice() { return Device; }
+	VkPhysicalDevice		GetPhysicalDevice() { return PhysicalDevice; }
+	QueueFamilyIndices		GetPhysicalQueueFamilies() { return PhysicalQueueFamilies; }
+	VkQueue					GetGraphicsQueue() { return GraphicsQueue; }
+	VkQueue					GetPresentQueue() { return PresentQueue; }
+	SwapChainSupportDetails GetSwapChainSupport() { return SwapChainSupport; }
+
+private:
+	FDeviceConfig DeviceConfig;
+
+	// VkInstance		   Instance = VK_NULL_HANDLE;
+	VkDevice		   Device = VK_NULL_HANDLE;
+	VkPhysicalDevice   PhysicalDevice = VK_NULL_HANDLE;
+	VkQueue			   GraphicsQueue = VK_NULL_HANDLE;
+	VkQueue			   PresentQueue = VK_NULL_HANDLE;
+	QueueFamilyIndices PhysicalQueueFamilies;
+	// VkSurfaceKHR	   Surface;
+
+	// GLFWwindow* Window = nullptr;
+
+	SwapChainSupportDetails SwapChainSupport;
+
+	// bool bEnableValidationLayers = false;
+
+	bool IsDeviceSuitable(VkPhysicalDevice Device);
+
+	int RateDeviceSuitability(VkPhysicalDevice Device);
+
+	bool CheckDeviceExtensionSupport(VkPhysicalDevice Device);
+
+	QueueFamilyIndices FindQueueFamilies(VkPhysicalDevice Device);
+
+	SwapChainSupportDetails QuerySwapChainSupport(VkPhysicalDevice Device);
+};