Initial commit
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7 changed files with 913 additions and 0 deletions
14
Makefile
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14
Makefile
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VULKAN_SDK_PATH = /mnt/storage/Downloads/VulkanSDK/1.0.30.0/x86_64
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CFLAGS = -std=c++11 -I$(VULKAN_SDK_PATH)/include
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LDFLAGS = -L$(VULKAN_SDK_PATH)/lib -L/usr/local/lib -lglfw3 -lrt -lm -ldl -lXrandr -lXinerama -lXxf86vm -lXext -lXcursor -lXrender -lXfixes -lX11 -lpthread -lxcb -lXau -lvulkan
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VulkanTest: main.cpp
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g++ $(CFLAGS) -g -o VulkanTest main.cpp $(LDFLAGS)
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.PHONY: test clean
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test: VulkanTest
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LD_LIBRARY_PATH=$(VULKAN_SDK_PATH)/lib VK_LAYER_PATH=$(VULKAN_SDK_PATH)/etc/explicit_layer.d ./VulkanTest
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clean:
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rm -f VulkanTest
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768
main.cpp
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768
main.cpp
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#define GLFW_INCLUDE_VULKAN
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#include <GLFW/glfw3.h>
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#include <cstring>
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#include <fstream>
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#include <functional>
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#include <iostream>
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#include <limits>
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#include <set>
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#include <stdexcept>
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#include <vector>
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#include "main.h"
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const int WIDTH = 1200;
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const int HEIGHT = 900;
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const std::vector<const char*> validationLayers = {
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"VK_LAYER_LUNARG_standard_validation"
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};
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const std::vector<const char*> deviceExtensions = {
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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
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class HelloTriangleApplication {
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public:
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void run() {
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initWindow();
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initVulkan();
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mainLoop();
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}
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// our debug callback function, just prints the message from the Validation layer to stderr
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static VKAPI_ATTR VkBool32 VKAPI_CALL debugCallback( VkDebugReportFlagsEXT flags,
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VkDebugReportObjectTypeEXT objType, uint64_t obj, size_t location, int32_t code,
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const char* layerPrefix, const char* msg, void* userData) {
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std::cerr << "[Validation Layer]: " << msg << std::endl;
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return VK_FALSE;
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}
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private:
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// Instance variables:
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GLFWwindow* window;
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VDeleter<VkInstance> instance {vkDestroyInstance};
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VDeleter<VkDebugReportCallbackEXT> callback {instance, DestroyDebugReportCallbackEXT};
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VkPhysicalDevice physicalDevice = VK_NULL_HANDLE;
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VkQueue graphicsQueue;
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VDeleter<VkDevice> device {vkDestroyDevice};
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VDeleter<VkSurfaceKHR> surface {instance, vkDestroySurfaceKHR};
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VkQueue presentQueue;
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VDeleter<VkSwapchainKHR> swapChain {device, vkDestroySwapchainKHR};
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std::vector<VkImage> swapChainImages;
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VkFormat swapChainImageFormat;
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VkExtent2D swapChainExtent;
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std::vector<VDeleter<VkImageView>> swapChainImageViews;
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VDeleter<VkRenderPass> renderPass {device, vkDestroyRenderPass};
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VDeleter<VkPipelineLayout> pipelineLayout {device, vkDestroyPipelineLayout};
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VDeleter<VkPipeline> graphicsPipeline {device, vkDestroyPipeline};
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std::vector<VDeleter<VkFramebuffer>> swapChainFramebuffers;
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VDeleter<VkCommandPool> commandPool {device, vkDestroyCommandPool};
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// Initialize our GLFW window.
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void initWindow() {
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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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}
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void initVulkan() {
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createInstance();
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setupDebugCallback();
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createSurface();
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pickPhysicalDevice();
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createLogicalDevice();
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createSwapChain();
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createImageViews();
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createRenderPass();
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createGraphicsPipeline();
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createFramebuffers();
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}
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// Figure out what extensions GLFW requires to make a Vulkan surface.
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// Also add the debug report extension, so we can add our debug report callback function.
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std::vector<const char*> getRequiredExtensions() {
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std::vector<const char*> extensions;
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unsigned int glfwExtensionCount = 0;
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const char** glfwExtensions;
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glfwExtensions = glfwGetRequiredInstanceExtensions(&glfwExtensionCount);
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for(unsigned int i = 0; i < glfwExtensionCount; i++) {
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extensions.push_back(glfwExtensions[i]);
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}
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if(enableValidationLayers) {
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extensions.push_back(VK_EXT_DEBUG_REPORT_EXTENSION_NAME);
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}
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return extensions;
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}
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// Create our VkInstance with the validation layers enabled and the extensions needed for
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// presentation on our surface GLFW will create.
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void createInstance() {
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if(enableValidationLayers && !checkValidationLayerSupport()) {
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throw std::runtime_error("validation layers requested, but not supported");
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}
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// Create VkApplicationInfo
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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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// Create VkInstanceCreateInfo and have it point to VkApplicationInfo
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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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// Enable the validation layers if they are requested
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if(enableValidationLayers) {
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createInfo.enabledLayerCount = validationLayers.size();
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createInfo.ppEnabledLayerNames = validationLayers.data();
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} else {
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createInfo.enabledLayerCount = 0;
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}
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auto reqExtensions = getRequiredExtensions();
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createInfo.enabledExtensionCount = reqExtensions.size();
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createInfo.ppEnabledExtensionNames = reqExtensions.data();
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if(vkCreateInstance(&createInfo, nullptr, instance.replace()) != VK_SUCCESS) {
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throw std::runtime_error("failed to create Vulkan instance!");
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}
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uint32_t extensionCount = 0;
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vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, nullptr);
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std::vector<VkExtensionProperties> extensions(extensionCount);
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vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, extensions.data());
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std::cout << "available extensions:" << std::endl;
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for(const auto& extension : extensions) {
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std::cout << "\t" << extension.extensionName << std::endl;
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}
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}
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// Check if the validation layers are supported.s
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bool checkValidationLayerSupport() {
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uint32_t layerCount;
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vkEnumerateInstanceLayerProperties(&layerCount, nullptr);
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std::vector<VkLayerProperties> availableLayers(layerCount);
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vkEnumerateInstanceLayerProperties(&layerCount, availableLayers.data());
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for(const char* layerName : validationLayers) {
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bool layerFound = false;
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for(const auto& layerProperties : availableLayers) {
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if(strcmp(layerName, layerProperties.layerName) == 0) {
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layerFound = true;
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break;
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}
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}
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if(!layerFound) {
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return false;
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}
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}
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return true;
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}
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// Set up our debug report callback to get information back from the validation layers.
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void setupDebugCallback() {
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if (!enableValidationLayers) return;
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VkDebugReportCallbackCreateInfoEXT createInfo = {};
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createInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
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createInfo.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT;
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createInfo.pfnCallback = debugCallback;
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if(CreateDebugReportCallbackEXT(instance, &createInfo, nullptr, callback.replace()) != VK_SUCCESS) {
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throw std::runtime_error("failed to setup debug callback!");
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}
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}
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// Pick the first suitable physical device, using isDeviceSuitable(VkPhysicalDevice)
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void pickPhysicalDevice() {
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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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throw std::runtime_error("Failed to find a device 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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if(isDeviceSuitable(device)) {
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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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throw std::runtime_error("Failed to find a suitable device!");
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}
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}
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// Determine if the chosen physical device is suitable for our application.
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bool isDeviceSuitable(VkPhysicalDevice device) {
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/* example: device must be a discrete GPU and support geometry shaders
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VkPhysicalDeviceProperties deviceProperties;
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VkPhysicalDeviceFeatures deviceFeatures;
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vkGetPhysicalDeviceProperties(device, &deviceProperties);
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vkGetPhysicalDeviceFeatures(device, &deviceFeatures);
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return deviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU &&
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deviceFeatures.geometryShader;
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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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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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// Check in the given physical device supports the extensions we require.
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bool checkDeviceExtensionSupport(VkPhysicalDevice device) {
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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(deviceExtensions.begin(), deviceExtensions.end());
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for(const auto& extension : availableExtensions) {
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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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// Find the queue families that support graphics and present. These could be
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// two different queue families, or the same one.
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QueueFamilyIndices findQueueFamilies(VkPhysicalDevice device) {
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QueueFamilyIndices indices;
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uint32_t queueFamilyCount;
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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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int i = 0;
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for(const auto& queueFamily : queueFamilies) {
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if(queueFamily.queueCount > 0 && (queueFamily.queueFlags & VK_QUEUE_GRAPHICS_BIT)) {
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indices.graphicsFamily = i;
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}
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VkBool32 presentSupport = false;
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vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &presentSupport);
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if(queueFamily.queueCount > 0 && presentSupport) {
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indices.presentFamily = i;
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}
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if(indices.isComplete()) {
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break;
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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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// Create the logical device with our required extensions, and the validation layers,
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// then create the graphics and present queues.
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void createLogicalDevice() {
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QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
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std::vector<VkDeviceQueueCreateInfo> queueCreateInfos;
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std::set<int> uniqueQueueFamilies = {indices.graphicsFamily, indices.presentFamily};
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float queuePriority = 1.0f;
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for(int queueFamily : uniqueQueueFamilies) {
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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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VkPhysicalDeviceFeatures deviceFeatures = {};
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VkDeviceCreateInfo createInfo = {};
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createInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
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createInfo.pQueueCreateInfos = queueCreateInfos.data();
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createInfo.queueCreateInfoCount = (uint32_t) queueCreateInfos.size();
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createInfo.pEnabledFeatures = &deviceFeatures;
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createInfo.enabledExtensionCount = deviceExtensions.size();
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createInfo.ppEnabledExtensionNames = deviceExtensions.data();
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if(enableValidationLayers) {
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createInfo.enabledLayerCount = validationLayers.size();
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createInfo.ppEnabledLayerNames= validationLayers.data();
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} else {
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createInfo.enabledLayerCount = 0;
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}
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if(vkCreateDevice(physicalDevice, &createInfo, nullptr, device.replace()) != VK_SUCCESS) {
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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, 0, &graphicsQueue);
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vkGetDeviceQueue(device, indices.presentFamily, 0, &presentQueue);
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}
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// Have GLFW create a surface for us, this lets us not be concerned with the platform-specifics
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// involved in surfaces.
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void createSurface() {
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if(glfwCreateWindowSurface(instance, window, nullptr, surface.replace()) != VK_SUCCESS) {
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throw std::runtime_error("failed to create window surface!");
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}
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}
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// Find out what formats and present modes the physical device supports.
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SwapChainSupportDetails querySwapChainSupport(VkPhysicalDevice device) {
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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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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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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 chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR>& availableFormats) {
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// If the surface has no preference of format, use 24-bit BGR and the SRGB color space
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if(availableFormats.size() == 1 && availableFormats[0].format == VK_FORMAT_UNDEFINED) {
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return {VK_FORMAT_B8G8R8_UNORM, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR};
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}
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// See if this same 24-bit BGR and SRGB combo is available
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for(const auto& availableFormat : availableFormats) {
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if(availableFormat.format == VK_FORMAT_B8G8R8_UNORM && availableFormat.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) {
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return availableFormat;
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}
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}
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// As a last resort, pick the surface's first preferred format
|
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return availableFormats[0];
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}
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VkPresentModeKHR chooseSwapPresentMode(const std::vector<VkPresentModeKHR> availablePresentModes) {
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||||
// Look if the the surface supports the "mailbox" present mode (similar to triple buffering)
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for(const auto& availablePresentMode : availablePresentModes) {
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||||
if(availablePresentMode == VK_PRESENT_MODE_MAILBOX_KHR) {
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||||
return availablePresentMode;
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||||
}
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||||
}
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||||
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||||
// If not, use the first in first out present mode (similar to basic double buffered vsync)
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return VK_PRESENT_MODE_FIFO_KHR;
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}
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VkExtent2D chooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities) {
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// Swap extent is resolution of the swap chain images we will be drawing to
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// Attempt to use the current extent, if it is valid.
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if(capabilities.currentExtent.width != std::numeric_limits<uint32_t>::max()) {
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return capabilities.currentExtent;
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} else {
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VkExtent2D actualExtent = {WIDTH, HEIGHT};
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// Get the size of extent we can use.
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actualExtent.width = std::max(capabilities.minImageExtent.width, std::min(capabilities.maxImageExtent.width, actualExtent.width));
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actualExtent.height = std::max(capabilities.minImageExtent.height, std::min(capabilities.maxImageExtent.height, actualExtent.height));
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||||
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return actualExtent;
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||||
}
|
||||
}
|
||||
|
||||
// Create the swap chain that will be used to submit completed frames to
|
||||
void createSwapChain() {
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SwapChainSupportDetails swapChainSupport= querySwapChainSupport(physicalDevice);
|
||||
|
||||
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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||||
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||||
// Attempt to use 1 + minimum image count for this device's swap chain support
|
||||
uint32_t imageCount = swapChainSupport.capabilities.minImageCount + 1;
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||||
// If this is too many, clamp to the maximum image count.
|
||||
if(swapChainSupport.capabilities.maxImageCount > 0 && imageCount > swapChainSupport.capabilities.maxImageCount) {
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||||
imageCount = swapChainSupport.capabilities.maxImageCount;
|
||||
}
|
||||
|
||||
VkSwapchainCreateInfoKHR createInfo = {};
|
||||
createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
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||||
createInfo.surface = surface;
|
||||
createInfo.minImageCount = imageCount;
|
||||
createInfo.imageFormat = surfaceFormat.format;
|
||||
createInfo.imageColorSpace = surfaceFormat.colorSpace;
|
||||
createInfo.imageExtent = extent;
|
||||
// Number of layers each image in swap chain consists of (stereoscopic app might use 2 layers)
|
||||
createInfo.imageArrayLayers = 1;
|
||||
// Tell Vulkan we will be rendering directly to the images in this swap chain.
|
||||
createInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
|
||||
|
||||
QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
|
||||
// Array of queue family indices we will use. Only used if they are different queue families.
|
||||
uint32_t queueFamilyIndices[] = {(uint32_t) indices.graphicsFamily, (uint32_t) indices.presentFamily};
|
||||
|
||||
// If graphics queue and present queue are on different queue families, we must tell Vulkan both queue
|
||||
// families will be concurrently sharing this swap chain.
|
||||
if(indices.graphicsFamily != indices.presentFamily) {
|
||||
createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
|
||||
createInfo.queueFamilyIndexCount = 2;
|
||||
createInfo.pQueueFamilyIndices = queueFamilyIndices;
|
||||
} else {
|
||||
// Graphics queue and present queue are on same queue family,
|
||||
// so the swap chain does not need to be shared.
|
||||
createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
|
||||
createInfo.queueFamilyIndexCount = 0;
|
||||
createInfo.pQueueFamilyIndices = nullptr;
|
||||
}
|
||||
|
||||
// We do not want the swap chain images to be transformed, so use the current transform.
|
||||
createInfo.preTransform = swapChainSupport.capabilities.currentTransform;
|
||||
// Ignore alpha for blending with other windows.
|
||||
createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
|
||||
|
||||
createInfo.presentMode = presentMode;
|
||||
createInfo.clipped = VK_TRUE; // Clip pixels that are obscured for improved perf.
|
||||
|
||||
// We have no old swap chain for now. Could be used if the window is resized or something
|
||||
// and we want to create a new swap chain to match the new window size.
|
||||
createInfo.oldSwapchain = VK_NULL_HANDLE;
|
||||
|
||||
if(vkCreateSwapchainKHR(device, &createInfo, nullptr, swapChain.replace()) != VK_SUCCESS) {
|
||||
throw std::runtime_error("failed to create swap chain!");
|
||||
}
|
||||
|
||||
// Get the swapchain images.
|
||||
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
|
||||
swapChainImages.resize(imageCount);
|
||||
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
|
||||
|
||||
// Store image format and extent of the swap chain images.
|
||||
swapChainImageFormat = surfaceFormat.format;
|
||||
swapChainExtent = extent;
|
||||
}
|
||||
|
||||
void createImageViews() {
|
||||
swapChainImageViews.resize(swapChainImages.size(), VDeleter<VkImageView>{device, vkDestroyImageView});
|
||||
|
||||
// For each image in the swap chain create a VkImageView
|
||||
for(uint32_t i = 0; i < swapChainImages.size(); i++) {
|
||||
VkImageViewCreateInfo createInfo = {};
|
||||
createInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
|
||||
createInfo.image = swapChainImages[i];
|
||||
|
||||
createInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
||||
createInfo.format = swapChainImageFormat;
|
||||
|
||||
// all our components should only be "swizzled" with the identity matrix.
|
||||
createInfo.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
|
||||
createInfo.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
|
||||
createInfo.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
|
||||
createInfo.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
|
||||
|
||||
createInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
createInfo.subresourceRange.baseMipLevel = 0;
|
||||
createInfo.subresourceRange.levelCount = 1;
|
||||
createInfo.subresourceRange.baseArrayLayer = 0;
|
||||
createInfo.subresourceRange.layerCount = 1;
|
||||
|
||||
if(vkCreateImageView(device, &createInfo, nullptr, swapChainImageViews[i].replace()) != VK_SUCCESS) {
|
||||
throw std::runtime_error("failed to create image views!");
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
void createGraphicsPipeline() {
|
||||
auto vertShaderCode = readFile("shaders/vert.spv");
|
||||
auto fragShaderCode = readFile("shaders/frag.spv");
|
||||
|
||||
VDeleter<VkShaderModule> vertShaderModule{device, vkDestroyShaderModule};
|
||||
VDeleter<VkShaderModule> fragShaderModule{device, vkDestroyShaderModule};
|
||||
|
||||
createShaderModule(vertShaderCode, vertShaderModule);
|
||||
createShaderModule(fragShaderCode, fragShaderModule);
|
||||
|
||||
VkPipelineShaderStageCreateInfo vertShaderStageInfo = {};
|
||||
vertShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
|
||||
vertShaderStageInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
|
||||
vertShaderStageInfo.module = vertShaderModule;
|
||||
vertShaderStageInfo.pName = "main";
|
||||
|
||||
VkPipelineShaderStageCreateInfo fragShaderStageInfo = {};
|
||||
fragShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
|
||||
fragShaderStageInfo.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
|
||||
fragShaderStageInfo.module = fragShaderModule;
|
||||
fragShaderStageInfo.pName = "main";
|
||||
|
||||
VkPipelineShaderStageCreateInfo shaderStages[] = {vertShaderStageInfo, fragShaderStageInfo};
|
||||
|
||||
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;
|
||||
|
||||
VkPipelineInputAssemblyStateCreateInfo inputAssembly = {};
|
||||
inputAssembly.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
|
||||
inputAssembly.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
|
||||
inputAssembly.primitiveRestartEnable = VK_FALSE;
|
||||
|
||||
VkViewport viewport = {};
|
||||
viewport.x = 0.0f;
|
||||
viewport.y = 0.0f;
|
||||
viewport.width = (float) swapChainExtent.width;
|
||||
viewport.height = (float) swapChainExtent.height;
|
||||
viewport.minDepth = 0.0f;
|
||||
viewport.maxDepth = 1.0f;
|
||||
|
||||
VkRect2D scissor = {};
|
||||
scissor.offset = {0, 0};
|
||||
scissor.extent = swapChainExtent;
|
||||
|
||||
VkPipelineViewportStateCreateInfo viewportState = {};
|
||||
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
|
||||
viewportState.viewportCount = 1;
|
||||
viewportState.pViewports = &viewport;
|
||||
viewportState.scissorCount = 1;
|
||||
viewportState.pScissors = &scissor;
|
||||
|
||||
VkPipelineRasterizationStateCreateInfo rasterizer = {};
|
||||
rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
|
||||
rasterizer.depthClampEnable = VK_FALSE;
|
||||
rasterizer.rasterizerDiscardEnable = VK_FALSE;
|
||||
|
||||
rasterizer.polygonMode = VK_POLYGON_MODE_FILL;
|
||||
rasterizer.lineWidth = 1.0f;
|
||||
|
||||
rasterizer.cullMode = VK_CULL_MODE_BACK_BIT;
|
||||
rasterizer.frontFace = VK_FRONT_FACE_CLOCKWISE;
|
||||
|
||||
rasterizer.depthBiasEnable = VK_FALSE;
|
||||
rasterizer.depthBiasConstantFactor = 0.0f;
|
||||
rasterizer.depthBiasClamp = 0.0f;
|
||||
rasterizer.depthBiasSlopeFactor = 0.0f;
|
||||
|
||||
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;
|
||||
|
||||
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_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;
|
||||
|
||||
VkPipelineColorBlendStateCreateInfo colorBlending = {};
|
||||
colorBlending.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
|
||||
colorBlending.logicOpEnable = VK_FALSE;
|
||||
colorBlending.logicOp = VK_LOGIC_OP_COPY;
|
||||
colorBlending.attachmentCount = 1;
|
||||
colorBlending.pAttachments = &colorBlendAttachment;
|
||||
colorBlending.blendConstants[0] = 0.0f;
|
||||
colorBlending.blendConstants[1] = 0.0f;
|
||||
colorBlending.blendConstants[2] = 0.0f;
|
||||
colorBlending.blendConstants[3] = 0.0f;
|
||||
|
||||
VkPipelineLayoutCreateInfo pipelineLayoutInfo = {};
|
||||
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
|
||||
pipelineLayoutInfo.setLayoutCount = 0;
|
||||
pipelineLayoutInfo.pSetLayouts = nullptr;
|
||||
|
||||
if(vkCreatePipelineLayout(device, &pipelineLayoutInfo, nullptr, pipelineLayout.replace()) != VK_SUCCESS) {
|
||||
throw std::runtime_error("failed to create pipeline layout!");
|
||||
}
|
||||
|
||||
VkGraphicsPipelineCreateInfo pipelineInfo = {};
|
||||
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
|
||||
pipelineInfo.stageCount = 2;
|
||||
pipelineInfo.pStages = shaderStages;
|
||||
|
||||
pipelineInfo.pVertexInputState = &vertexInputInfo;
|
||||
pipelineInfo.pInputAssemblyState = &inputAssembly;
|
||||
pipelineInfo.pViewportState = &viewportState;
|
||||
pipelineInfo.pRasterizationState = &rasterizer;
|
||||
pipelineInfo.pMultisampleState = &multisampling;
|
||||
pipelineInfo.pDepthStencilState = nullptr;
|
||||
pipelineInfo.pColorBlendState = &colorBlending;
|
||||
pipelineInfo.pDynamicState = nullptr;
|
||||
|
||||
pipelineInfo.layout = pipelineLayout;
|
||||
|
||||
pipelineInfo.renderPass = renderPass;
|
||||
pipelineInfo.subpass = 0;
|
||||
|
||||
pipelineInfo.basePipelineHandle = VK_NULL_HANDLE;
|
||||
pipelineInfo.basePipelineIndex = -1;
|
||||
|
||||
if(vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &pipelineInfo, nullptr, graphicsPipeline.replace()) != VK_SUCCESS) {
|
||||
throw std::runtime_error("failed to create graphics pipeline!");
|
||||
}
|
||||
}
|
||||
|
||||
static std::vector<char> readFile(const std::string& filename) {
|
||||
// Start reading at end of the file, as binary.
|
||||
std::ifstream file(filename, std::ios::ate | std::ios::binary);
|
||||
|
||||
if(!file.is_open()) {
|
||||
throw std::runtime_error("failed to open file!");
|
||||
}
|
||||
|
||||
size_t fileSize = (size_t) file.tellg();
|
||||
std::vector<char> buffer(fileSize);
|
||||
file.seekg(0);
|
||||
file.read(buffer.data(), fileSize);
|
||||
file.close();
|
||||
|
||||
return buffer;
|
||||
}
|
||||
|
||||
void createShaderModule(const std::vector<char>& code, VDeleter<VkShaderModule>& shaderModule) {
|
||||
VkShaderModuleCreateInfo createInfo = {};
|
||||
createInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
|
||||
createInfo.codeSize = code.size();
|
||||
createInfo.pCode = (uint32_t*) code.data();
|
||||
|
||||
if(vkCreateShaderModule(device, &createInfo, nullptr, shaderModule.replace()) != VK_SUCCESS) {
|
||||
throw std::runtime_error("failed to create shader module!");
|
||||
}
|
||||
}
|
||||
|
||||
void createRenderPass() {
|
||||
VkAttachmentDescription colorAttachment = {};
|
||||
colorAttachment.format = swapChainImageFormat;
|
||||
colorAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
|
||||
colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
|
||||
|
||||
colorAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
|
||||
colorAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||||
|
||||
colorAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
||||
colorAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
|
||||
|
||||
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.replace()) != VK_SUCCESS) {
|
||||
throw std::runtime_error("failed to create render pass!");
|
||||
}
|
||||
}
|
||||
|
||||
void createFramebuffers() {
|
||||
swapChainFramebuffers.resize(swapChainImageViews.size(), VDeleter<VkFramebuffer> {device, vkDestroyFramebuffer});
|
||||
|
||||
for(size_t i = 0; i < swapChainImageViews.size(); i++) {
|
||||
VkImageView attachments[] = { swapChainImageViews[i] };
|
||||
|
||||
VkFramebufferCreateInfo framebufferInfo = {};
|
||||
framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
|
||||
framebufferInfo.renderPass = renderPass;
|
||||
framebufferInfo.attachmentCount = 1;
|
||||
framebufferInfo.pAttachments = attachments;
|
||||
framebufferInfo.width = swapChainExtent.width;
|
||||
framebufferInfo.height = swapChainExtent.height;
|
||||
framebufferInfo.layers = 1;
|
||||
|
||||
if(vkCreateFramebuffer(device, &framebufferInfo, nullptr, swapChainFramebuffers[i].replace()) != VK_SUCCESS) {
|
||||
throw std::runtime_error("failed to create framebuffer!");
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
void mainLoop() {
|
||||
// While we shouldn't close, have glfw poll for events
|
||||
while(!glfwWindowShouldClose(window)) {
|
||||
glfwPollEvents();
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
int main() {
|
||||
HelloTriangleApplication app;
|
||||
|
||||
try {
|
||||
app.run();
|
||||
} catch (const std::runtime_error& e) {
|
||||
std::cerr << e.what() << std::endl;
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
}
|
91
main.h
Normal file
91
main.h
Normal file
|
@ -0,0 +1,91 @@
|
|||
// Wrappers for extension functions that must be located using vkGetInstanceProcAddr
|
||||
VkResult CreateDebugReportCallbackEXT(VkInstance instance, const VkDebugReportCallbackCreateInfoEXT* pCreateInfo,
|
||||
const VkAllocationCallbacks* pAllocator, VkDebugReportCallbackEXT* pCallback) {
|
||||
auto func = (PFN_vkCreateDebugReportCallbackEXT) vkGetInstanceProcAddr(instance, "vkCreateDebugReportCallbackEXT");
|
||||
if(func != nullptr) {
|
||||
return func(instance, pCreateInfo, pAllocator, pCallback);
|
||||
} else {
|
||||
return VK_ERROR_EXTENSION_NOT_PRESENT;
|
||||
}
|
||||
}
|
||||
|
||||
void DestroyDebugReportCallbackEXT(VkInstance instance, VkDebugReportCallbackEXT callback, const VkAllocationCallbacks* pAllocator) {
|
||||
auto func = (PFN_vkDestroyDebugReportCallbackEXT) vkGetInstanceProcAddr(instance, "vkDestroyDebugReportCallbackEXT");
|
||||
if(func != nullptr) {
|
||||
func(instance, callback, pAllocator);
|
||||
}
|
||||
}
|
||||
|
||||
// VDeleter utility class that automatically destroys objects when they fall out of scope.
|
||||
template <typename T>
|
||||
class VDeleter {
|
||||
public:
|
||||
VDeleter() : VDeleter([](T, VkAllocationCallbacks*) {}) {}
|
||||
|
||||
VDeleter(std::function<void(T, VkAllocationCallbacks*)> deletef) {
|
||||
this->deleter = [=](T obj) { deletef(obj, nullptr); };
|
||||
}
|
||||
|
||||
VDeleter(const VDeleter<VkInstance>& instance, std::function<void(VkInstance, T, VkAllocationCallbacks*)> deletef) {
|
||||
this->deleter = [&instance, deletef](T obj) { deletef(instance, obj, nullptr); };
|
||||
}
|
||||
|
||||
VDeleter(const VDeleter<VkDevice>& device, std::function<void(VkDevice, T, VkAllocationCallbacks*)> deletef) {
|
||||
this->deleter = [&device, deletef](T obj) { deletef(device, obj, nullptr); };
|
||||
}
|
||||
|
||||
~VDeleter() {
|
||||
cleanup();
|
||||
}
|
||||
|
||||
const T* operator &() const {
|
||||
return &object;
|
||||
}
|
||||
|
||||
T* replace() {
|
||||
cleanup();
|
||||
return &object;
|
||||
}
|
||||
|
||||
operator T() const {
|
||||
return object;
|
||||
}
|
||||
|
||||
void operator=(T rhs) {
|
||||
if (rhs != object) {
|
||||
cleanup();
|
||||
object = rhs;
|
||||
}
|
||||
}
|
||||
|
||||
template<typename V>
|
||||
bool operator==(V rhs) {
|
||||
return object == T(rhs);
|
||||
}
|
||||
|
||||
private:
|
||||
T object{VK_NULL_HANDLE};
|
||||
std::function<void(T)> deleter;
|
||||
|
||||
void cleanup() {
|
||||
if (object != VK_NULL_HANDLE) {
|
||||
deleter(object);
|
||||
}
|
||||
object = VK_NULL_HANDLE;
|
||||
}
|
||||
};
|
||||
|
||||
struct QueueFamilyIndices {
|
||||
int graphicsFamily = -1;
|
||||
int presentFamily = -1;
|
||||
|
||||
bool isComplete() {
|
||||
return graphicsFamily >= 0 && presentFamily >= 0;
|
||||
}
|
||||
};
|
||||
|
||||
struct SwapChainSupportDetails {
|
||||
VkSurfaceCapabilitiesKHR capabilities;
|
||||
std::vector<VkSurfaceFormatKHR> formats;
|
||||
std::vector<VkPresentModeKHR> presentModes;
|
||||
};
|
3
shaders/compile.bat
Normal file
3
shaders/compile.bat
Normal file
|
@ -0,0 +1,3 @@
|
|||
C:/VulkanSDK/1.0.30.0/Bin32/glslangValidator.exe -V shader.vert
|
||||
C:/VulkanSDK/1.0.30.0/Bin32/glslangValidator.exe -V shader.frag
|
||||
pause
|
2
shaders/compile.sh
Executable file
2
shaders/compile.sh
Executable file
|
@ -0,0 +1,2 @@
|
|||
/mnt/storage/Downloads/VulkanSDK/1.0.30.0/x86_64/bin/glslangValidator -V shader.vert
|
||||
/mnt/storage/Downloads/VulkanSDK/1.0.30.0/x86_64/bin/glslangValidator -V shader.frag
|
10
shaders/shader.frag
Normal file
10
shaders/shader.frag
Normal file
|
@ -0,0 +1,10 @@
|
|||
#version 450
|
||||
#extension GL_ARB_separate_shader_objects : enable
|
||||
|
||||
layout(location = 0) in vec3 fragColor;
|
||||
|
||||
layout(location = 0) out vec4 outColor;
|
||||
|
||||
void main() {
|
||||
outColor = vec4(fragColor, 1.0);
|
||||
}
|
25
shaders/shader.vert
Normal file
25
shaders/shader.vert
Normal file
|
@ -0,0 +1,25 @@
|
|||
#version 450
|
||||
#extension GL_ARB_separate_shader_objects : enable
|
||||
|
||||
out gl_PerVertex {
|
||||
vec4 gl_Position;
|
||||
};
|
||||
|
||||
layout(location = 0) out vec3 fragColor;
|
||||
|
||||
vec2 positions[3] = vec2[](
|
||||
vec2(0.0, -0.5),
|
||||
vec2(0.5, 0.5),
|
||||
vec2(-0.5, 0.5)
|
||||
);
|
||||
|
||||
vec3 colors[3] = vec3[](
|
||||
vec3(1.0, 0.0, 0.0),
|
||||
vec3(0.0, 1.0, 0.0),
|
||||
vec3(0.0, 0.0, 1.0)
|
||||
);
|
||||
|
||||
void main() {
|
||||
gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
|
||||
fragColor = colors[gl_VertexIndex];
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue