// VulkanTutorial.h: 标准系统包含文件的包含文件
// 或项目特定的包含文件。

#pragma once


#define GLFW_INCLUDE_VULKAN
#include<GLFW/glfw3.h>

#include<vulkan/vulkan.h>
#include <iostream>
#include <optional>
#include <stdexcept>
#include <functional>
#include <cstdlib>
#include <set>

#include <cstdint>
#include <limits>
#include <algorithm>

#include <fstream>


VkResult CreateDebugUtilsMessengerEXT(VkInstance instance, const VkDebugUtilsMessengerCreateInfoEXT* pCreateInfo,const VkAllocationCallbacks* pAllocator,VkDebugUtilsMessengerEXT* pDebugMessenger);

void DestroyDebugUtilsMessengerEXT(VkInstance instance,VkDebugUtilsMessengerEXT debugMessenger,const VkAllocationCallbacks* pAllocator);

class HelloTriangleApplication
{
public:
	
	HelloTriangleApplication();
	~HelloTriangleApplication();
	void run(int Width, int Height) {
		GLFWwindow* window = initWindow(Width,Height);
		initVulkan();
		mainLoop(window);
		cleanup(window);
	}
private:

	GLFWwindow* window;

	VkInstance instance;

	VkDebugUtilsMessengerEXT debugMessenger;

	VkPhysicalDevice physicalDevice = VK_NULL_HANDLE;

	VkDevice device;


	VkQueue graphicQueue;
	VkQueue presentQueue;

	VkSurfaceKHR surface;

	VkSwapchainKHR swapChain;
	std::vector<VkImage> swapChainImages;
	VkFormat swapChainImageFormat;
	VkExtent2D swapChainExtent;

	std::vector<VkImageView> swapChainImageViews;

	VkPipelineLayout pipelineLayout;

	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;
	};
	

	GLFWwindow* initWindow(int Width, int Height);

	void createInstance();

	void initVulkan();

	void mainLoop(GLFWwindow* window);

	void cleanup(GLFWwindow* window);

	bool checkValidationLayerSupport();

	std::vector<const char*> getRequiredExtensions();

	void showAvailableExtension();

	static VKAPI_ATTR VkBool32 VKAPI_CALL debugCallback(
		VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity,
		VkDebugUtilsMessageTypeFlagsEXT messageTypes,
		const VkDebugUtilsMessengerCallbackDataEXT* pCallbackData,
		void* pUserData);

	void setupDebugMessenger();
	void populateDebugMessengerCreateInfo(VkDebugUtilsMessengerCreateInfoEXT& createInfo);

	void createSurface();

	bool checkDeviceExtensionSupport(VkPhysicalDevice device);

	void pickPhysicalDevice();
	bool isDeviceSuitable(VkPhysicalDevice device);

	QueueFamilyIndices findQueueFamilies(VkPhysicalDevice device);

	void createLogicalDevice();

	SwapChainSupportDetails querySwapChainSupport(VkPhysicalDevice device);

	VkSurfaceFormatKHR chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR>& availableFormats);
	VkPresentModeKHR chooseSwapPresentMode(const std::vector<VkPresentModeKHR>& availablePresentModes);
	VkExtent2D chooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities);
	void createSwapChain();

	void creatImageView();

	void createGraphicPipeline();

	static std::vector<char> readFile(const std::string& filename);

	VkShaderModule createShaderModule(const std::vector<char> code);

};

HelloTriangleApplication::HelloTriangleApplication()
{
}

HelloTriangleApplication::~HelloTriangleApplication()
{
}