VulkanTutorial/code/01_instance_creation.cpp at main · Overv/VulkanTutorial · GitHub

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#defineGLFW_INCLUDE_VULKAN
#include<GLFW/glfw3.h>

#include<iostream>
#include<stdexcept>
#include<cstdlib>

constuint32_tWIDTH = 800;
constuint32_tHEIGHT = 600;

classHelloTriangleApplication {
public:
voidrun() {
initWindow();
initVulkan();
mainLoop();
cleanup();
 }

private:
 GLFWwindow* window;

 VkInstance instance;

voidinitWindow() {
glfwInit();

glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);

 window = glfwCreateWindow(WIDTH, HEIGHT, "Vulkan", nullptr, nullptr);
 }

voidinitVulkan() {
createInstance();
 }

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

voidcleanup() {
vkDestroyInstance(instance, nullptr);

glfwDestroyWindow(window);

glfwTerminate();
 }

voidcreateInstance() {
 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 glfwExtensionCount = 0;
constchar** glfwExtensions;
 glfwExtensions = glfwGetRequiredInstanceExtensions(&glfwExtensionCount);

 createInfo.enabledExtensionCount = glfwExtensionCount;
 createInfo.ppEnabledExtensionNames = glfwExtensions;

 createInfo.enabledLayerCount = 0;

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

intmain() {
 HelloTriangleApplication app;

try {
 app.run();
 } catch (const std::exception& e) {
 std::cerr << e.what() << std::endl;
returnEXIT_FAILURE;
 }

returnEXIT_SUCCESS;
}