871 lines
27 KiB
C++
871 lines
27 KiB
C++
// VulkanTutorial.cpp: 定义应用程序的入口点。
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//
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#include "VulkanTutorial.h"
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const int Width = 800;
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const int Height = 600;
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const std::vector<const char*> validationLayers = {
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"VK_LAYER_KHRONOS_validation"
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};
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const std::vector<const char*> swapchainExtensions = {
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VK_KHR_SWAPCHAIN_EXTENSION_NAME
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};
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#ifdef NDEBUG
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const bool enableValidationLayers = false;
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#else
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const bool enableValidationLayers = true;
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#endif // NDEBUG
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//window init
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GLFWwindow* HelloTriangleApplication::initWindow(int Width, int Height) {
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glfwInit();
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glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
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glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
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window = glfwCreateWindow(Width, Height, "vulkan", nullptr, nullptr);
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return window;
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}
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// vulkan instace create
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void HelloTriangleApplication::createInstance() {
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// check validation layers
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if (enableValidationLayers && ! checkValidationLayerSupport())
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{
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throw std::runtime_error("validation layers requsted,but not available");
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}
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//setup appliaction info
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VkApplicationInfo appInfo{};
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appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
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appInfo.pApplicationName = "Hello Triangle";
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appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0);
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appInfo.pEngineName = "No_Engine";
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appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
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appInfo.apiVersion = VK_API_VERSION_1_0;
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// setup createInfo
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VkInstanceCreateInfo createInfo{};
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createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
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createInfo.pApplicationInfo = &appInfo;
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auto requiredExtensions = getRequiredExtensions();
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createInfo.enabledExtensionCount = static_cast<uint32_t>(requiredExtensions.size());
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createInfo.ppEnabledExtensionNames = requiredExtensions.data();
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/* enable glfw extension in creatInfo
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uint32_t glfwExtentionCount = 0;
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const char** glfwExtensions;
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glfwExtensions = glfwGetRequiredInstanceExtensions(&glfwExtentionCount);
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createInfo.enabledExtensionCount = glfwExtentionCount;
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createInfo.ppEnabledExtensionNames = glfwExtensions;
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*/
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// enable validation layer if available in createInfo
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VkDebugUtilsMessengerCreateInfoEXT debugCreateInfo{};
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if (enableValidationLayers)
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{
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createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
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createInfo.ppEnabledLayerNames = validationLayers.data();
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populateDebugMessengerCreateInfo(debugCreateInfo);
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createInfo.pNext = (VkDebugUtilsMessengerCreateInfoEXT*) &debugCreateInfo;
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}
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else
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{
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createInfo.enabledLayerCount = 0;
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createInfo.pNext = nullptr;
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}
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// throw error in creating instance
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if (vkCreateInstance(&createInfo, nullptr, &instance)!=VK_SUCCESS)
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{
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throw std::runtime_error("failed to create instance");
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}
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}
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void HelloTriangleApplication::initVulkan() {
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createInstance();
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//showAvailableExtension();
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setupDebugMessenger();
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createSurface();
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pickPhysicalDevice();
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createLogicalDevice();
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createSwapChain();
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creatImageView();
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createRenderPass();
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createGraphicPipeline();
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}
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void HelloTriangleApplication::mainLoop(GLFWwindow* window){
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while (!glfwWindowShouldClose(window))
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{
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glfwPollEvents();
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}
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}
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void HelloTriangleApplication::cleanup(GLFWwindow* window) {
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std::cout << "\nstart to destroy resource\n" << std::endl;
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyRenderPass(device, renderPass, nullptr);
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for (auto imageView : swapChainImageViews)
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{
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vkDestroyImageView(device, imageView, nullptr);
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}
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vkDestroySwapchainKHR(device, swapChain, nullptr);
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vkDestroySurfaceKHR(instance, surface, nullptr);
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if (enableValidationLayers)
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{
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DestroyDebugUtilsMessengerEXT(instance, debugMessenger, nullptr);
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}
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vkDestroyDevice(device, nullptr);
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vkDestroyInstance(instance, nullptr);
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glfwDestroyWindow(window);
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glfwTerminate();
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}
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std::vector<const char*> HelloTriangleApplication::getRequiredExtensions() {
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uint32_t glfwExtensionCount = 0;
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const char** glfwExtensions;
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glfwExtensions = glfwGetRequiredInstanceExtensions(&glfwExtensionCount);
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std::vector<const char*> extensions(glfwExtensions, glfwExtensions + glfwExtensionCount);
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if (enableValidationLayers)
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{
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extensions.push_back(VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
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}
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return extensions;
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}
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void HelloTriangleApplication::showAvailableExtension()
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{
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// show available extensions
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uint32_t availableExtensionCount = 0;
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vkEnumerateInstanceExtensionProperties(nullptr, &availableExtensionCount, nullptr);
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std::vector<VkExtensionProperties> availableExtensions(availableExtensionCount);
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vkEnumerateInstanceExtensionProperties(nullptr, &availableExtensionCount, availableExtensions.data());
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std::cout << "available extensions :" << std::endl;
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for (const auto& extension : availableExtensions)
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{
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std::cout << "\t" << extension.extensionName << " ver:" << extension.specVersion << std::endl;
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}
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}
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VKAPI_ATTR VkBool32 VKAPI_CALL HelloTriangleApplication::debugCallback(
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VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity,
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VkDebugUtilsMessageTypeFlagsEXT messageTypes,
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const VkDebugUtilsMessengerCallbackDataEXT* pCallbackData,
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void* pUserData)
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{
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std::cerr << "validation layer: " << pCallbackData->pMessage << std::endl;
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return VK_FALSE;
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}
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void HelloTriangleApplication::setupDebugMessenger()
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{
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if (! enableValidationLayers)
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{
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return;
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}
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VkDebugUtilsMessengerCreateInfoEXT createInfo{};
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populateDebugMessengerCreateInfo(createInfo);
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if (CreateDebugUtilsMessengerEXT(instance,&createInfo,nullptr,&debugMessenger)!= VK_SUCCESS)
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{
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throw std::runtime_error("failed to set up debug messenger in setupDebugMessenger");
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}
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}
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void HelloTriangleApplication::populateDebugMessengerCreateInfo(VkDebugUtilsMessengerCreateInfoEXT& createInfo)
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{
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createInfo.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT;
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createInfo.messageSeverity = VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT |
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VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT |
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VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT;
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createInfo.messageType = VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT |
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VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT |
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VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT;
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createInfo.pfnUserCallback = &debugCallback;
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createInfo.pUserData = nullptr;
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}
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void HelloTriangleApplication::createSurface()
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{
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if (glfwCreateWindowSurface(instance,window,nullptr,&surface) != VK_SUCCESS)
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{
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throw std::runtime_error("failed to create window surface in createSurface()");
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}
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}
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bool HelloTriangleApplication::checkDeviceExtensionSupport(VkPhysicalDevice device)
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{
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uint32_t extensionCount;
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vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, nullptr);
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std::vector<VkExtensionProperties> availableExtensions(extensionCount);
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vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, availableExtensions.data());
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std::set<std::string> requiredExtensions(swapchainExtensions.begin(), swapchainExtensions.end());
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for (const auto& extension : availableExtensions)
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{
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requiredExtensions.erase(extension.extensionName);
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}
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return requiredExtensions.empty();
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}
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void HelloTriangleApplication::pickPhysicalDevice()
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{
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uint32_t deviceCount = 0;
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vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr);
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if (deviceCount==0)
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{
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throw std::runtime_error("failed to find GPUs with Vulkan support");
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}
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std::vector<VkPhysicalDevice> devices(deviceCount);
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vkEnumeratePhysicalDevices(instance, &deviceCount, devices.data());
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for (const auto& device : devices)
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{
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if (isDeviceSuitable(device))
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{
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physicalDevice = device;
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break;
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}
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}
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if (physicalDevice == VK_NULL_HANDLE)
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{
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throw std::runtime_error("failed to find a suitable GPU");
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}
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}
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bool HelloTriangleApplication::isDeviceSuitable(VkPhysicalDevice device)
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{
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QueueFamilyIndices indices = findQueueFamilies(device);
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bool extensionsSupported = checkDeviceExtensionSupport(device);
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bool swapChainAdequate = false;
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if (extensionsSupported)
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{
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SwapChainSupportDetails swapChainSupport = querySwapChainSupport(device);
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swapChainAdequate = !swapChainSupport.formats.empty() && !swapChainSupport.presentModes.empty();
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}
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return indices.isComplete() && extensionsSupported && swapChainAdequate;
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}
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HelloTriangleApplication::QueueFamilyIndices HelloTriangleApplication::findQueueFamilies(VkPhysicalDevice device)
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{
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QueueFamilyIndices indices;
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uint32_t queueFamilyCount = 0;
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vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, nullptr);
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std::vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
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vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, queueFamilies.data());
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VkBool32 presentSupport = false;
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int i = 0;
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vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &presentSupport);
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for (const auto& queueFamily : queueFamilies)
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{
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if (queueFamily.queueFlags & VK_QUEUE_GRAPHICS_BIT) {
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indices.graphicsFamily = i;
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}
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if (indices.isComplete())
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{
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break;
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}
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if (presentSupport)
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{
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indices.presentFamily = i;
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}
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i++;
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}
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return indices;
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}
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void HelloTriangleApplication::createLogicalDevice()
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{
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QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
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std::vector<VkDeviceQueueCreateInfo> queueCreateInfos;
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std::set<uint32_t> uniqueQueueFamilies = { indices.graphicsFamily.value(),indices.presentFamily.value() };
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float queuePriority = 1.0f;
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for (uint32_t queueFamily : uniqueQueueFamilies)
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{
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VkDeviceQueueCreateInfo queueCreateInfo{};
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queueCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
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queueCreateInfo.queueFamilyIndex = queueFamily;
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queueCreateInfo.queueCount = 1;
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queueCreateInfo.pQueuePriorities = &queuePriority;
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queueCreateInfos.push_back(queueCreateInfo);
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}
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/*
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VkDeviceQueueCreateInfo queueCreateInfo{};
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queueCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
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queueCreateInfo.queueFamilyIndex = indices.graphicsFamily.value();
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queueCreateInfo.queueCount = 1;
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float queuePriority = 1.0f;
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queueCreateInfo.pQueuePriorities = &queuePriority;
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*/
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VkPhysicalDeviceFeatures deviceFeatures{};
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VkDeviceCreateInfo deviceCreateInfo{};
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deviceCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
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deviceCreateInfo.queueCreateInfoCount = static_cast<uint32_t>(queueCreateInfos.size());
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deviceCreateInfo.pQueueCreateInfos = queueCreateInfos.data();
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deviceCreateInfo.pEnabledFeatures = &deviceFeatures;
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deviceCreateInfo.enabledExtensionCount = static_cast<uint32_t>(swapchainExtensions.size());
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deviceCreateInfo.ppEnabledExtensionNames = swapchainExtensions.data();
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//新版本vulkan已不对实例和设备特定验证层做区分，此处保证兼容性
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if (enableValidationLayers)
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{
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deviceCreateInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
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deviceCreateInfo.ppEnabledLayerNames = validationLayers.data();
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}
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else
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{
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deviceCreateInfo.enabledLayerCount = 0;
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}
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if (vkCreateDevice(physicalDevice,&deviceCreateInfo,nullptr,&device) != VK_SUCCESS)
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{
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throw std::runtime_error("failed to create logical device");
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}
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vkGetDeviceQueue(device, indices.graphicsFamily.value(), 0, &graphicQueue);
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vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
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}
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HelloTriangleApplication::SwapChainSupportDetails HelloTriangleApplication::querySwapChainSupport(VkPhysicalDevice device)
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{
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SwapChainSupportDetails details;
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vkGetPhysicalDeviceSurfaceCapabilitiesKHR(device, surface, &details.capabilities);
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uint32_t formatCount;
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vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, nullptr);
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if (formatCount !=0)
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{
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details.formats.resize(formatCount);
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vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, details.formats.data());
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}
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uint32_t presentModeCount;
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vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, nullptr);
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if (presentModeCount != 0)
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{
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details.presentModes.resize(presentModeCount);
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vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, details.presentModes.data());
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}
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return details;
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}
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VkSurfaceFormatKHR HelloTriangleApplication::chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR>& availableFormats)
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{
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for (const auto& availableFormat : availableFormats) {
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if (availableFormat.format == VK_FORMAT_B8G8R8_SRGB && availableFormat.colorSpace == VK_COLORSPACE_SRGB_NONLINEAR_KHR)
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{
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return availableFormat;
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}
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}
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return availableFormats[0];
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}
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VkPresentModeKHR HelloTriangleApplication::chooseSwapPresentMode(const std::vector<VkPresentModeKHR>& availablePresentModes)
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{
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for (const auto& availablePresentMode : availablePresentModes) {
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if (availablePresentMode == VK_PRESENT_MODE_MAILBOX_KHR)
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{
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return availablePresentMode;
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}
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}
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return VK_PRESENT_MODE_FIFO_KHR;
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}
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VkExtent2D HelloTriangleApplication::chooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities)
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{
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if (capabilities.currentExtent.width != std::numeric_limits<uint32_t>::max())
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{
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return capabilities.currentExtent;
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}
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else
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{
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int width, height;
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glfwGetFramebufferSize(window, &width, &height);
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VkExtent2D actualExtent = {
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static_cast<uint32_t>(width),
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static_cast<uint32_t>(height)
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};
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actualExtent.width = std::clamp(actualExtent.width, capabilities.minImageExtent.width, capabilities.maxImageExtent.width);
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actualExtent.height = std::clamp(actualExtent.height, capabilities.minImageExtent.height, capabilities.maxImageExtent.height);
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return actualExtent;
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}
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}
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void HelloTriangleApplication::createSwapChain()
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{
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SwapChainSupportDetails swapChainSupport = querySwapChainSupport(physicalDevice);
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VkSurfaceFormatKHR surfaceFormat = chooseSwapSurfaceFormat(swapChainSupport.formats);
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VkPresentModeKHR presentMode = chooseSwapPresentMode(swapChainSupport.presentModes);
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VkExtent2D extent = chooseSwapExtent(swapChainSupport.capabilities);
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uint32_t imageCount = swapChainSupport.capabilities.minImageCount + 1;
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if (swapChainSupport.capabilities.maxImageCount > 0 && imageCount > swapChainSupport.capabilities.maxImageCount)
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{
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imageCount = swapChainSupport.capabilities.maxImageCount;
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}
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VkSwapchainCreateInfoKHR createInfo{};
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createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
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createInfo.surface = surface;
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createInfo.minImageCount = imageCount;
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createInfo.imageFormat = surfaceFormat.format;
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createInfo.imageColorSpace = surfaceFormat.colorSpace;
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createInfo.imageExtent = extent;
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createInfo.imageArrayLayers = 1;
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createInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
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QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
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uint32_t queueFamilyIndices[] = { indices.graphicsFamily.value(),indices.presentFamily.value() };
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if (indices.graphicsFamily != indices.presentFamily)
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{
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createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
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createInfo.queueFamilyIndexCount = 2;
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createInfo.pQueueFamilyIndices = queueFamilyIndices;
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}
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else
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{
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createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
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createInfo.queueFamilyIndexCount = 0;
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createInfo.pQueueFamilyIndices = nullptr;
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}
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createInfo.preTransform = swapChainSupport.capabilities.currentTransform;
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createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
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createInfo.presentMode = presentMode;
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createInfo.clipped = VK_TRUE;
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createInfo.oldSwapchain = VK_NULL_HANDLE;
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if (vkCreateSwapchainKHR(device,&createInfo,nullptr,&swapChain) != VK_SUCCESS)
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{
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throw std::runtime_error("failed to create swap chain !");
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}
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vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
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swapChainImages.resize(imageCount);
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vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
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// store swap format and swap extent to member variable
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swapChainImageFormat = surfaceFormat.format;
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swapChainExtent = extent;
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}
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void HelloTriangleApplication::creatImageView()
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{
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swapChainImageViews.resize(swapChainImages.size());
|
||
|
||
for (size_t i = 0; i < swapChainImages.size(); i++)
|
||
{
|
||
VkImageViewCreateInfo creatInfo{};
|
||
creatInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
|
||
creatInfo.image = swapChainImages[i];
|
||
creatInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
||
creatInfo.format = swapChainImageFormat;
|
||
|
||
creatInfo.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
|
||
creatInfo.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
|
||
creatInfo.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
|
||
creatInfo.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
|
||
|
||
creatInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||
creatInfo.subresourceRange.baseMipLevel = 0;
|
||
creatInfo.subresourceRange.levelCount = 1;
|
||
creatInfo.subresourceRange.baseArrayLayer = 0;
|
||
creatInfo.subresourceRange.layerCount = 1;
|
||
|
||
if (vkCreateImageView(device,&creatInfo,nullptr,&swapChainImageViews[i]) != VK_SUCCESS)
|
||
{
|
||
throw std::runtime_error("failed to creat image view");
|
||
}
|
||
|
||
|
||
}
|
||
}
|
||
std::vector<char> HelloTriangleApplication::readFile(const std::string& filename)
|
||
{
|
||
std::ifstream file(filename, std::ios::ate | std::ios::binary);
|
||
|
||
if (!file.is_open())
|
||
{
|
||
throw std::runtime_error("failed to open file!");
|
||
}
|
||
|
||
rsize_t fileSize = (rsize_t)file.tellg();
|
||
std::vector<char> buffer(fileSize);
|
||
|
||
file.seekg(0);
|
||
file.read(buffer.data(), fileSize);
|
||
file.close();
|
||
return buffer;
|
||
|
||
}
|
||
|
||
VkShaderModule HelloTriangleApplication::createShaderModule(const std::vector<char> code)
|
||
{
|
||
VkShaderModuleCreateInfo createInfo{};
|
||
createInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
|
||
createInfo.codeSize = code.size();
|
||
createInfo.pCode = reinterpret_cast<const uint32_t*>(code.data());
|
||
|
||
VkShaderModule shaderModeul;
|
||
if (vkCreateShaderModule(device,&createInfo,nullptr,&shaderModeul) != VK_SUCCESS)
|
||
{
|
||
throw std::runtime_error("failed to create shader module!");
|
||
}
|
||
|
||
return shaderModeul;
|
||
|
||
}
|
||
|
||
|
||
void HelloTriangleApplication::createRenderPass()
|
||
{
|
||
VkAttachmentDescription colorAttachment{};
|
||
colorAttachment.format = swapChainImageFormat;
|
||
colorAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
|
||
//颜色和深度数据
|
||
colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR; // 开始时清除附件数据
|
||
colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;// 存储渲染内容到内存
|
||
//stencil数据
|
||
colorAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;// just dont care
|
||
colorAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||
|
||
colorAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;// render pass 开始前图形具有的布局
|
||
colorAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;// render pass 完成时自动转换到的布局，此处为准备用交换链进行呈现
|
||
|
||
VkAttachmentReference colorAttachmentRef{};
|
||
colorAttachmentRef.attachment = 0;
|
||
colorAttachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
|
||
|
||
VkSubpassDescription subpass{};
|
||
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
|
||
subpass.colorAttachmentCount = 1;
|
||
subpass.pColorAttachments = &colorAttachmentRef;
|
||
|
||
VkRenderPassCreateInfo renderPassInfo{};
|
||
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
|
||
renderPassInfo.attachmentCount = 1;
|
||
renderPassInfo.pAttachments = &colorAttachment;
|
||
renderPassInfo.subpassCount = 1;
|
||
renderPassInfo.pSubpasses = &subpass;
|
||
|
||
if (vkCreateRenderPass(device,&renderPassInfo,nullptr,&renderPass) != VK_SUCCESS)
|
||
{
|
||
throw std::runtime_error("failed to create render pass in createRenderPass");
|
||
}
|
||
|
||
}
|
||
|
||
void HelloTriangleApplication::createGraphicPipeline()
|
||
{
|
||
auto vertShaderCode = readFile("../../../shaders/triangleVert.spv");
|
||
auto fragShaderCode = readFile("../../..//shaders/triangleFrag.spv");
|
||
|
||
|
||
//std::cout << "vertShader size:" << vertShaderCode.size() << "\nfragShader size:" << fragShaderCode.size() << std::endl;
|
||
|
||
VkShaderModule vertShaderModule = createShaderModule(vertShaderCode);
|
||
VkShaderModule fragShaderModule = createShaderModule(fragShaderCode);
|
||
|
||
//指定管线vertex阶段
|
||
VkPipelineShaderStageCreateInfo vertShaderStageInfo{};
|
||
vertShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
|
||
vertShaderStageInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
|
||
//指定模块和入口点
|
||
vertShaderStageInfo.module = vertShaderModule;
|
||
vertShaderStageInfo.pName = "main";
|
||
//指定管线fragment阶段
|
||
VkPipelineShaderStageCreateInfo fragShaderStageInfo{};
|
||
fragShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
|
||
fragShaderStageInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
|
||
fragShaderStageInfo.module = fragShaderModule;
|
||
fragShaderStageInfo.pName = "main";
|
||
|
||
VkPipelineShaderStageCreateInfo shaderStages[] = { vertShaderStageInfo,fragShaderStageInfo };
|
||
|
||
//顶点输入
|
||
VkPipelineVertexInputStateCreateInfo vertexInputInfo{};
|
||
vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
|
||
vertexInputInfo.vertexBindingDescriptionCount = 0;
|
||
vertexInputInfo.pVertexBindingDescriptions = nullptr;
|
||
vertexInputInfo.vertexAttributeDescriptionCount = 0;
|
||
vertexInputInfo.pVertexAttributeDescriptions = nullptr;
|
||
|
||
|
||
//使用动态状态并保留视口和剪刀裁剪状态
|
||
std::vector<VkDynamicState> dynamicStates = {
|
||
VK_DYNAMIC_STATE_VIEWPORT,
|
||
VK_DYNAMIC_STATE_SCISSOR
|
||
};
|
||
|
||
VkPipelineDynamicStateCreateInfo dynamicState{};
|
||
dynamicState.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
|
||
dynamicState.dynamicStateCount = static_cast<uint32_t>(dynamicStates.size());
|
||
dynamicState.pDynamicStates = dynamicStates.data();
|
||
|
||
//描述从顶点绘制哪种几何图形及是否启用primitive restart
|
||
VkPipelineInputAssemblyStateCreateInfo inputAsseblyState{};
|
||
inputAsseblyState.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
|
||
inputAsseblyState.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
|
||
inputAsseblyState.primitiveRestartEnable = VK_FALSE;
|
||
|
||
//视口描述将被渲染输出的帧缓冲区域
|
||
VkViewport viewport{};
|
||
viewport.x = 0.0f;
|
||
viewport.y = 0.0f;
|
||
viewport.width = (float)swapChainExtent.width;
|
||
viewport.height = (float)swapChainExtent.height;
|
||
viewport.minDepth = 0.0f;//指定深度值范围，通常为此范围
|
||
viewport.maxDepth = 1.0f;
|
||
|
||
// 剪刀矩阵，定义像素实际存储的区域
|
||
VkRect2D scissor{};
|
||
scissor.offset = { 0,0 };
|
||
scissor.extent = swapChainExtent;
|
||
// 创建viewport
|
||
VkPipelineViewportStateCreateInfo viewportState{};
|
||
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
|
||
viewportState.viewportCount = 1;
|
||
viewportState.scissorCount = 1;
|
||
|
||
// 光栅化
|
||
VkPipelineRasterizationStateCreateInfo rasterizer{};
|
||
rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
|
||
rasterizer.depthClampEnable = VK_FALSE;// 不丢弃超出近平面和远平面的fragment
|
||
rasterizer.rasterizerDiscardEnable = VK_FALSE;// 启用则几何图形不会通过光栅化，禁用framebuffer的所有输出
|
||
rasterizer.polygonMode = VK_POLYGON_MODE_FILL;// fragment填充多边形区域
|
||
rasterizer.lineWidth = 1.0f;
|
||
|
||
rasterizer.cullMode = VK_CULL_MODE_BACK_BIT;// 背面剔除
|
||
rasterizer.frontFace = VK_FRONT_FACE_CLOCKWISE;
|
||
|
||
// 根据fragment的斜率偏置深度值
|
||
rasterizer.depthBiasEnable = VK_FALSE;
|
||
rasterizer.depthBiasConstantFactor = 0.0f;
|
||
rasterizer.depthBiasClamp = 0.0f;
|
||
rasterizer.depthBiasSlopeFactor = 0.0f;
|
||
|
||
// 多重采样（禁用）
|
||
VkPipelineMultisampleStateCreateInfo multisampling{};
|
||
multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
|
||
multisampling.sampleShadingEnable = VK_FALSE;
|
||
multisampling.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
|
||
multisampling.minSampleShading = 1.0f;
|
||
multisampling.pSampleMask = nullptr;
|
||
multisampling.alphaToCoverageEnable = VK_FALSE;
|
||
multisampling.alphaToOneEnable = VK_FALSE;
|
||
|
||
// 深度或模版缓冲区（暂留）
|
||
|
||
// 颜色混合 color blending
|
||
//每个附加帧缓冲区的配置
|
||
VkPipelineColorBlendAttachmentState colorBlendAttachment{};
|
||
colorBlendAttachment.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
|
||
colorBlendAttachment.blendEnable = VK_FALSE;
|
||
colorBlendAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_ONE;
|
||
colorBlendAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_ZERO;
|
||
colorBlendAttachment.colorBlendOp = VK_BLEND_OP_ADD;
|
||
colorBlendAttachment.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
|
||
colorBlendAttachment.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
|
||
colorBlendAttachment.alphaBlendOp = VK_BLEND_OP_ADD;
|
||
|
||
/*
|
||
alpha混合
|
||
colorBlendAttachment.blendEnable = VK_TRUE;
|
||
colorBlendAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
|
||
colorBlendAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
|
||
colorBlendAttachment.colorBlendOp = VK_BLEND_OP_ADD;
|
||
colorBlendAttachment.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
|
||
colorBlendAttachment.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
|
||
colorBlendAttachment.alphaBlendOp = VK_BLEND_OP_ADD;
|
||
*/
|
||
|
||
//全局颜色混合配置,按位运算
|
||
VkPipelineColorBlendStateCreateInfo colorBlendState{};
|
||
colorBlendState.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
|
||
colorBlendState.logicOpEnable = VK_FALSE;
|
||
colorBlendState.logicOp = VK_LOGIC_OP_COPY;
|
||
colorBlendState.attachmentCount = 1;
|
||
colorBlendState.pAttachments = &colorBlendAttachment;
|
||
colorBlendState.blendConstants[0] = 0.0f;
|
||
colorBlendState.blendConstants[1] = 0.0f;
|
||
colorBlendState.blendConstants[2] = 0.0f;
|
||
colorBlendState.blendConstants[3] = 0.0f;
|
||
|
||
VkPipelineLayoutCreateInfo pipelineLayoutInfo{};
|
||
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
|
||
pipelineLayoutInfo.setLayoutCount = 0;
|
||
pipelineLayoutInfo.pSetLayouts = nullptr;
|
||
pipelineLayoutInfo.pushConstantRangeCount = 0;
|
||
pipelineLayoutInfo.pPushConstantRanges = nullptr;
|
||
|
||
if (vkCreatePipelineLayout(device,&pipelineLayoutInfo,nullptr,&pipelineLayout) != VK_SUCCESS)
|
||
{
|
||
throw std::runtime_error("failed to create pipeline Layout in createGraphicPipeline");
|
||
}
|
||
|
||
// 管道创建完成后销毁着色器模块
|
||
vkDestroyShaderModule(device, fragShaderModule, nullptr);
|
||
vkDestroyShaderModule(device, vertShaderModule, nullptr);
|
||
}
|
||
|
||
|
||
bool HelloTriangleApplication::checkValidationLayerSupport() {
|
||
uint32_t layerCount;
|
||
vkEnumerateInstanceLayerProperties(&layerCount, nullptr);
|
||
|
||
std::vector<VkLayerProperties> availableLayers(layerCount);
|
||
vkEnumerateInstanceLayerProperties(&layerCount, availableLayers.data());
|
||
|
||
// check if validationLayers can be found in availableLayers
|
||
for (const char* layerName: validationLayers)
|
||
{
|
||
bool layerFound = false;
|
||
for (const auto& layerProperties : availableLayers) {
|
||
if (strcmp(layerName,layerProperties.layerName)==0)
|
||
{
|
||
layerFound = true;
|
||
break;
|
||
}
|
||
}
|
||
if (!layerFound)
|
||
{
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
|
||
|
||
VkResult CreateDebugUtilsMessengerEXT(VkInstance instance, const VkDebugUtilsMessengerCreateInfoEXT* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkDebugUtilsMessengerEXT* pDebugMessenger)
|
||
{
|
||
auto func = (PFN_vkCreateDebugUtilsMessengerEXT) vkGetInstanceProcAddr(instance, "vkCreateDebugUtilsMessengerEXT");
|
||
|
||
if (func != nullptr)
|
||
{
|
||
return func(instance, pCreateInfo, pAllocator, pDebugMessenger);
|
||
|
||
}
|
||
else
|
||
{
|
||
return VK_ERROR_EXTENSION_NOT_PRESENT;
|
||
}
|
||
|
||
}
|
||
|
||
void DestroyDebugUtilsMessengerEXT(VkInstance instance, VkDebugUtilsMessengerEXT debugMessenger, const VkAllocationCallbacks* pAllocator)
|
||
{
|
||
auto func = (PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr(instance, "vkDestroyDebugUtilsMessengerEXT");
|
||
|
||
if (func!=nullptr)
|
||
{
|
||
func(instance, debugMessenger, pAllocator);
|
||
}
|
||
}
|
||
|
||
|
||
int main()
|
||
{
|
||
HelloTriangleApplication app;
|
||
|
||
try
|
||
{
|
||
app.run(Width,Height);
|
||
}
|
||
catch (const std::exception& e)
|
||
{
|
||
std::cerr << e.what() << std::endl;
|
||
return EXIT_FAILURE;
|
||
}
|
||
return EXIT_SUCCESS;
|
||
}
|
||
|
||
|