// VulkanTutorial.cpp: 定义应用程序的入口点。
//


#include "VulkanTutorial.h"


GLFWwindow* HelloTriangleApplication::initWindow(int Width, int Height) {
	glfwInit();
	glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
	glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
	auto window = glfwCreateWindow(Width, Height, "vulkan", nullptr, nullptr);
	return window;
}

void HelloTriangleApplication::createInstance() {
	VkApplicationInfo appInfo = {};
	appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
	appInfo.pApplicationName = "Hello Triangle";
	appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0);
	appInfo.pEngineName = "No_Engine";
	appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
	appInfo.apiVersion = VK_API_VERSION_1_0;

	VkInstanceCreateInfo createInfo = {};
	createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
	createInfo.pApplicationInfo = &appInfo;

	uint32_t glfwExtentionCount = 0;
	const char** glfwExtensions;
	glfwExtensions = glfwGetRequiredInstanceExtensions(&glfwExtentionCount);

	createInfo.enabledExtensionCount = glfwExtentionCount;
	createInfo.ppEnabledExtensionNames = glfwExtensions;
	createInfo.enabledLayerCount = 0;


	if (vkCreateInstance(&createInfo, nullptr, &instance)!=VK_SUCCESS)
	{
		throw std::runtime_error("failed to create instance");
	}

	uint32_t extensionCount = 0;
	vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, nullptr);

	std::vector<VkExtensionProperties> extensions(extensionCount);

	vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, extensions.data());

	std::cout << "available extensions :" << std::endl;

	for (const auto& extension : extensions)
	{
		std::cout << "\t" << extension.extensionName << " version:" << extension.specVersion << std::endl;
	}
}

void HelloTriangleApplication::initVulkan() {
	createInstance();
}

void HelloTriangleApplication::mainLoop(GLFWwindow* window){

	while (!glfwWindowShouldClose(window))
	{
		glfwPollEvents();
	}

}

void HelloTriangleApplication::cleanup(GLFWwindow* window) {

	vkDestroyInstance(instance, nullptr);
	
	glfwDestroyWindow(window);

	glfwTerminate();
}


int main()
{
	HelloTriangleApplication app;
	int Width = 800;
	int Height = 600;

	try
	{
		app.run(Width,Height);
	}
	catch (const std::exception& e)
	{
		std::cerr << e.what() << std::endl;
		return EXIT_FAILURE;
	}
	return EXIT_SUCCESS;
}