Files
Vulkan_TestApp/vulkan/vulkan_app.cpp
T
2025-04-08 17:29:26 +02:00

1669 lines
73 KiB
C++

//
// Created by timo on 03.04.25.
//
#include "vulkan_app.hpp"
// throws duplicate include errors when in vulkan_app.hpp
#define STB_IMAGE_IMPLEMENTATION
#include <stb/stb_image.h>
// same as stb
#define TINYOBJLOADER_IMPLEMENTATION
#include <tiny_obj_loader.h>
namespace vapp{
const std::vector<const char*> validationLayers = {
"VK_LAYER_KHRONOS_validation"
};
const std::vector<const char*> deviceExtensions = {
VK_KHR_SWAPCHAIN_EXTENSION_NAME,
};
static VKAPI_ATTR VkBool32 VKAPI_CALL debugCallback(VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity, VkDebugUtilsMessageTypeFlagsEXT messageType, const VkDebugUtilsMessengerCallbackDataEXT *pCallbackData, void *pUserData){
std::cerr << "Validation Layer: " << pCallbackData->pMessage << std::endl;
return VK_FALSE;
}
VkResult CreateDebugUtilsMessengerEXT(VkInstance instance, const VkDebugUtilsMessengerCreateInfoEXT *pCreateInfo, const VkAllocationCallbacks *pAllocator, VkDebugUtilsMessengerEXT *pDebugMessenger){
auto func = (PFN_vkCreateDebugUtilsMessengerEXT)vkGetInstanceProcAddr(
instance, "vkCreateDebugUtilsMessengerEXT");
if(func == nullptr) return VK_ERROR_EXTENSION_NOT_PRESENT;
if(func == nullptr) return VK_ERROR_EXTENSION_NOT_PRESENT;
return func(instance, pCreateInfo, pAllocator, pDebugMessenger);
}
void DestroyDebugUtilsMessengerEXT(VkInstance instance, VkDebugUtilsMessengerEXT debugMessenger, const VkAllocationCallbacks *pAllocator){
if(auto func = (PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr(
instance, "vkDestroyDebugUtilsMessengerEXT"); func != nullptr){
func(instance, debugMessenger, pAllocator);
}
}
void populateDebugMessengerCreateInfo(VkDebugUtilsMessengerCreateInfoEXT& createInfo){
createInfo = {};
createInfo.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT;
createInfo.messageSeverity = VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT |
VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT;
// set which type of messages the callback is notified about
createInfo.messageType = VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT |
VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT;
createInfo.pfnUserCallback = debugCallback;
}
static std::vector<char> readFile(const std::string& filename){
std::ifstream file(filename, std::ios::ate | std::ios::binary);
if(!file.is_open()){
throw std::runtime_error("Func: readFile\nError: 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;
}
bool Vulkan::checkValidationLayerSupport(){
uint32_t layerCount;
vkEnumerateInstanceLayerProperties(&layerCount, nullptr);
std::vector<VkLayerProperties> availableLayers(layerCount);
vkEnumerateInstanceLayerProperties(&layerCount, availableLayers.data());
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;
}
std::vector<const char*> Vulkan::getRequiredExtensions(){
uint32_t glfwExtensionCount = 0;
const char **glfwExtensions = glfwGetRequiredInstanceExtensions(&glfwExtensionCount);
std::vector<const char*> extensions(glfwExtensions, glfwExtensions + glfwExtensionCount);
if(enableValidationLayers) extensions.push_back(VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
return extensions;
}
VkSampleCountFlagBits Vulkan::getMaxUsableSampleCount()
{
VkPhysicalDeviceProperties physicalDeviceProperties;
vkGetPhysicalDeviceProperties(physicalDevice, &physicalDeviceProperties);
VkSampleCountFlags counts = physicalDeviceProperties.limits.framebufferDepthSampleCounts;
if (counts & VK_SAMPLE_COUNT_64_BIT) return VK_SAMPLE_COUNT_64_BIT;
if (counts & VK_SAMPLE_COUNT_32_BIT) return VK_SAMPLE_COUNT_32_BIT;
if (counts & VK_SAMPLE_COUNT_16_BIT) return VK_SAMPLE_COUNT_16_BIT;
if (counts & VK_SAMPLE_COUNT_8_BIT) return VK_SAMPLE_COUNT_8_BIT;
if (counts & VK_SAMPLE_COUNT_4_BIT) return VK_SAMPLE_COUNT_4_BIT;
if (counts & VK_SAMPLE_COUNT_2_BIT) return VK_SAMPLE_COUNT_2_BIT;
return VK_SAMPLE_COUNT_1_BIT;
}
void Vulkan::createInstance(){
if(enableValidationLayers && !checkValidationLayerSupport()){
throw std::runtime_error("Func: createInstance\nError: Validation Layers requested, but not available!\n");
}
VkApplicationInfo appInfo{};
appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
appInfo.pApplicationName = "Triangle App";
appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0);
appInfo.pEngineName = "No Engine";
appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
appInfo.apiVersion = VK_API_VERSION_1_0;
VkInstanceCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
createInfo.pApplicationInfo = &appInfo;
std::vector<const char*> glfwExtensions = getRequiredExtensions();
createInfo.enabledExtensionCount = static_cast<uint32_t>(glfwExtensions.size());
createInfo.ppEnabledExtensionNames = glfwExtensions.data();
VkDebugUtilsMessengerCreateInfoEXT debugCreateInfo{};
if(enableValidationLayers){
createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
createInfo.ppEnabledLayerNames = validationLayers.data();
populateDebugMessengerCreateInfo(debugCreateInfo);
createInfo.pNext = (VkDebugUtilsMessengerCreateInfoEXT*)&debugCreateInfo;
}
else{
createInfo.enabledLayerCount = 0;
createInfo.pNext = nullptr;
}
if(vkCreateInstance(&createInfo, nullptr, &instance) != VK_SUCCESS){
throw std::runtime_error("Func: createInstance\nError: Failed to create Instance!\n");
}
uint32_t extensionCount = 0;
vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, nullptr);
std::vector<VkExtensionProperties> extensions(extensionCount);
vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, extensions.data());
if(enableValidationLayers){
std::cout << "Available Extensions (" << extensionCount << "):\n";
for(VkExtensionProperties extension : extensions){
std::cout << '\t' << extension.extensionName << '\n';
}
}
}
void Vulkan::setupDebugMessenger(){
if(!enableValidationLayers) return;
VkDebugUtilsMessengerCreateInfoEXT createInfo{};
populateDebugMessengerCreateInfo(createInfo);
if(CreateDebugUtilsMessengerEXT(instance, &createInfo, nullptr, &debugMessenger) != VK_SUCCESS){
throw std::runtime_error("Func: setupDebugMessenger\nError: Failed to set up Debug Messenger!\n");
}
}
void Vulkan::pickPhysicalDevice(){
uint32_t deviceCount = 0;
vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr);
if(deviceCount == 0){
throw std::runtime_error("Func: pickPhysicalDevice\nError: Failed to find GPUs with Vulkan support!\n");
}
std::vector<VkPhysicalDevice> devices(deviceCount);
vkEnumeratePhysicalDevices(instance, &deviceCount, devices.data());
for(VkPhysicalDevice device : devices){
if(isDeviceSuitable(device)){
physicalDevice = device;
msaaSamples = getMaxUsableSampleCount();
break;
}
}
if(physicalDevice == VK_NULL_HANDLE){
throw std::runtime_error("Func: pickPhysicalDevice\nError: Failed to find suitable GPU!\n");
}
}
void Vulkan::createLogicalDevice(){
QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
std::vector<VkDeviceQueueCreateInfo> queueCreateInfos;
std::set<uint32_t> uniqueQueueFamilies = {indices.graphicsFamily.value(), indices.presentFamily.value()};
float queuePriority = 1.0f;
for(uint32_t queueFamily : uniqueQueueFamilies){
VkDeviceQueueCreateInfo queueCreateInfo{};
queueCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queueCreateInfo.queueFamilyIndex = queueFamily;
queueCreateInfo.queueCount = 1;
queueCreateInfo.pQueuePriorities = &queuePriority;
queueCreateInfos.push_back(queueCreateInfo);
}
VkPhysicalDeviceFeatures deviceFeatures{};
deviceFeatures.samplerAnisotropy = VK_TRUE;
deviceFeatures.sampleRateShading = VK_TRUE;
VkDeviceCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
createInfo.queueCreateInfoCount = static_cast<uint32_t>(queueCreateInfos.size());
createInfo.pQueueCreateInfos = queueCreateInfos.data();
createInfo.pEnabledFeatures = &deviceFeatures;
// not used anymore but sets backwards compatibility
createInfo.enabledExtensionCount = static_cast<uint32_t>(deviceExtensions.size());
createInfo.ppEnabledExtensionNames = deviceExtensions.data();
if(enableValidationLayers){
createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
createInfo.ppEnabledLayerNames = validationLayers.data();
}
else{
createInfo.enabledLayerCount = 0;
}
if(vkCreateDevice(physicalDevice, &createInfo, nullptr, &device) != VK_SUCCESS){
throw std::runtime_error("Func: createLogicalDevice\nError: Failed to create logical Device!\n");
}
vkGetDeviceQueue(device, indices.graphicsFamily.value(), 0, &graphicsQueue);
vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
}
QueueFamilyIndices Vulkan::findQueueFamilies(VkPhysicalDevice device){
QueueFamilyIndices indices;
uint32_t queueFamilyCount = 0;
vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, nullptr);
std::vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, queueFamilies.data());
int i = 0;
for(const VkQueueFamilyProperties queueFamily : queueFamilies){
VkBool32 presentSupport = false;
vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &presentSupport);
if(presentSupport) indices.presentFamily = i;
if(queueFamily.queueFlags & VK_QUEUE_GRAPHICS_BIT) indices.graphicsFamily = i;
if(indices.isComplete()) break;
i++;
}
return indices;
}
bool Vulkan::checkDeviceExtensionSupport(VkPhysicalDevice device){
uint32_t extensionCount;
vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, nullptr);
std::vector<VkExtensionProperties> availableExtensions(extensionCount);
vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, availableExtensions.data());
std::set<std::string> requiredExtensions(deviceExtensions.begin(), deviceExtensions.end());
for(const VkExtensionProperties& extension : availableExtensions){
requiredExtensions.erase(extension.extensionName);
}
return requiredExtensions.empty();
}
bool Vulkan::isDeviceSuitable(VkPhysicalDevice device){
QueueFamilyIndices indices = findQueueFamilies(device);
bool extensionSupported = checkDeviceExtensionSupport(device);
bool swapChainAdequate = false;
if(extensionSupported){
SwapChainSupportDetails swapChainSupport = querySwapChainSupport(device);
swapChainAdequate = !swapChainSupport.formats.empty() && !swapChainSupport.presentModes.empty();
}
VkPhysicalDeviceFeatures supportedFeatures;
vkGetPhysicalDeviceFeatures(device, &supportedFeatures);
return indices.isComplete() && extensionSupported && swapChainAdequate && supportedFeatures.samplerAnisotropy;
}
void Vulkan::createSurface(){
if(glfwCreateWindowSurface(instance, window, nullptr, &surface) != VK_SUCCESS){
throw std::runtime_error("Func: createSurface\nError: Failed to create Window Surface!\n");
}
}
SwapChainSupportDetails Vulkan::querySwapChainSupport(VkPhysicalDevice device){
SwapChainSupportDetails details;
vkGetPhysicalDeviceSurfaceCapabilitiesKHR(device, surface, &details.capabilities);
uint32_t formatCount;
vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, nullptr);
if(formatCount != 0){
details.formats.resize(formatCount);
vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, details.formats.data());
}
uint32_t presentModeCount;
vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, nullptr);
if(presentModeCount != 0){
details.presentModes.resize(presentModeCount);
vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, details.presentModes.data());
}
return details;
}
VkSurfaceFormatKHR Vulkan::chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR>& availableFormats){
for(const VkSurfaceFormatKHR availableFormat : availableFormats){
if(availableFormat.format == VK_FORMAT_R8G8B8A8_SRGB && availableFormat.colorSpace ==
VK_COLOR_SPACE_SRGB_NONLINEAR_KHR){
return availableFormat;
}
}
return availableFormats[0];
}
VkPresentModeKHR Vulkan::chooseSwapPresentMode(const std::vector<VkPresentModeKHR> availablePresentModes){
for(const VkPresentModeKHR availablePresentMode : availablePresentModes){
if(availablePresentMode == WISHED_PRESENT_MODE){
return availablePresentMode;
}
}
return VK_PRESENT_MODE_FIFO_KHR; // always available
}
VkExtent2D Vulkan::chooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities){
if(capabilities.currentExtent.width != std::numeric_limits<uint32_t>::max()){
return capabilities.currentExtent;
}
int width, height;
glfwGetFramebufferSize(window, &width, &height);
VkExtent2D actualExtent = {
static_cast<uint32_t>(width),
static_cast<uint32_t>(height)
};
actualExtent.width = std::clamp(actualExtent.width, capabilities.minImageExtent.width,
capabilities.maxImageExtent.width);
actualExtent.height = std::clamp(actualExtent.height, capabilities.minImageExtent.height,
capabilities.maxImageExtent.height);
return actualExtent;
}
void Vulkan::createSwapChain(){
SwapChainSupportDetails swapChainSupport = querySwapChainSupport(physicalDevice);
VkSurfaceFormatKHR surfaceFormat = chooseSwapSurfaceFormat(swapChainSupport.formats);
VkPresentModeKHR presentMode = chooseSwapPresentMode(swapChainSupport.presentModes);
VkExtent2D extent = chooseSwapExtent(swapChainSupport.capabilities);
uint32_t imageCount = swapChainSupport.capabilities.minImageCount + 1;
if(swapChainSupport.capabilities.maxImageCount > 0 && imageCount > swapChainSupport.capabilities.maxImageCount){
imageCount = swapChainSupport.capabilities.maxImageCount;
}
VkSwapchainCreateInfoKHR createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
createInfo.surface = surface;
createInfo.minImageCount = imageCount;
createInfo.imageFormat = surfaceFormat.format;
createInfo.imageColorSpace = surfaceFormat.colorSpace;
createInfo.imageExtent = extent;
createInfo.imageArrayLayers = 1;
createInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
uint32_t queueFamiliyIndices[] = {indices.graphicsFamily.value(), indices.presentFamily.value()};
if(indices.graphicsFamily != indices.presentFamily){
createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
createInfo.queueFamilyIndexCount = 2;
createInfo.pQueueFamilyIndices = queueFamiliyIndices;
}
else{
createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
// rest would default which already is
}
createInfo.preTransform = swapChainSupport.capabilities.currentTransform;
createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
createInfo.presentMode = presentMode;
createInfo.clipped = VK_TRUE;
createInfo.oldSwapchain = VK_NULL_HANDLE; // swap chain needs to be recreated when window is resized
if(vkCreateSwapchainKHR(device, &createInfo, nullptr, &swapChain) != VK_SUCCESS){
throw std::runtime_error("Func: createSwapChain\nError: Failed to create Swap Chain!\n");
}
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
swapChainImages.resize(imageCount);
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
swapChainImageFormat = surfaceFormat.format;
swapChainExtent = extent;
}
void Vulkan::createImageViews(){
swapChainImageViews.resize(swapChainImages.size());
for(uint32_t i = 0; i < swapChainImages.size(); i++){
swapChainImageViews[i] = createImageView(swapChainImages[i], swapChainImageFormat, VK_IMAGE_ASPECT_COLOR_BIT, 1);
}
}
void Vulkan::createDescriptorSetLayout(){
VkDescriptorSetLayoutBinding uboLayoutBinding{};
uboLayoutBinding.binding = 0;
uboLayoutBinding.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
uboLayoutBinding.descriptorCount = 1;
uboLayoutBinding.stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
VkDescriptorSetLayoutBinding samplerLayoutBinding{};
samplerLayoutBinding.binding = 1;
samplerLayoutBinding.descriptorCount = 1;
samplerLayoutBinding.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
samplerLayoutBinding.pImmutableSamplers = nullptr;
samplerLayoutBinding.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
std::array<VkDescriptorSetLayoutBinding, 2> bindings = { uboLayoutBinding, samplerLayoutBinding };
VkDescriptorSetLayoutCreateInfo layoutInfo{};
layoutInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
layoutInfo.bindingCount = static_cast<uint32_t>(bindings.size());
layoutInfo.pBindings = bindings.data();
if(vkCreateDescriptorSetLayout(device, &layoutInfo, nullptr, &descriptorSetLayout) != VK_SUCCESS){
throw std::runtime_error("Func: createDescriptorSetLayout\nError: Failed to create Descriptor Set Layout!\n");
}
}
void Vulkan::createGraphicsPipeline(){
std::vector<char> vertShaderCode;
std::vector<char> fragShaderCode;
try{
vertShaderCode = readFile("shaders/shader.vert.spv");
fragShaderCode = readFile("shaders/shader.frag.spv");
}
catch(const std::exception &e){
std::cout << "Failed to read ./shaders/...\nTrying fallback folders!\n";
vertShaderCode = readFile("../shaders/shader.vert.spv");
fragShaderCode = readFile("../shaders/shader.frag.spv");
}
VkShaderModule vertShaderModule = createShaderModule(vertShaderCode);
VkShaderModule fragShaderModule = createShaderModule(fragShaderCode);
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};
// Dynamics are done to not reinitialize every pipeline for example resizes
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();
auto bindingDescription = Vertex::getBindingDescription();
auto attributeDescription = Vertex::getAttributeDescriptions();
VkPipelineVertexInputStateCreateInfo vertexInputInfo{};
vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertexInputInfo.vertexBindingDescriptionCount = 1;
vertexInputInfo.vertexAttributeDescriptionCount = static_cast<uint32_t>(attributeDescription.size());
vertexInputInfo.pVertexBindingDescriptions = &bindingDescription;
vertexInputInfo.pVertexAttributeDescriptions = attributeDescription.data();
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;
vkCmdSetViewport(commandBuffer, 0, 1, &viewport);
VkRect2D scissor{};
scissor.offset = { 0, 0 };
scissor.extent = swapChainExtent;
vkCmdSetScissor(commandBuffer, 0, 1, &scissor);
*/
VkPipelineViewportStateCreateInfo viewportState{};
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewportState.viewportCount = 1;
// viewportState.pViewports = &viewport; // possibly made immutable
viewportState.scissorCount = 1;
// viewportState.pScissors = &scissor; // possibly made immutable
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; // INFO: Other render effects
rasterizer.lineWidth = 1.0f;
rasterizer.cullMode = VK_CULL_MODE_BACK_BIT;
// rasterizer.frontFace = VK_FRONT_FACE_CLOCKWISE; with descriptor sets this causes backface culling to occure
rasterizer.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE;
rasterizer.depthBiasEnable = VK_FALSE;
VkPipelineMultisampleStateCreateInfo multisampling{};
multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
multisampling.sampleShadingEnable = VK_FALSE;
multisampling.rasterizationSamples = msaaSamples;
multisampling.sampleShadingEnable = VK_TRUE;
multisampling.minSampleShading = .8f;
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.attachmentCount = 1;
colorBlending.pAttachments = &colorBlendAttachment;
VkPipelineDepthStencilStateCreateInfo depthStencil{};
depthStencil.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
depthStencil.depthTestEnable = VK_TRUE;
depthStencil.depthWriteEnable = VK_TRUE;
depthStencil.depthCompareOp = VK_COMPARE_OP_LESS;
depthStencil.depthBoundsTestEnable = VK_FALSE;
depthStencil.minDepthBounds = 0.0f;
depthStencil.maxDepthBounds = 1.0f;
depthStencil.stencilTestEnable = VK_FALSE;
depthStencil.front = {};
depthStencil.back = {};
VkPipelineLayoutCreateInfo pipelineLayoutInfo{};
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutInfo.setLayoutCount = 1;
pipelineLayoutInfo.pSetLayouts = &descriptorSetLayout;
if(vkCreatePipelineLayout(device, &pipelineLayoutInfo, nullptr, &pipelineLayout) != VK_SUCCESS){
throw std::runtime_error("Func; createGraphicsPipeline\nError: Failed to create pipeline layout!\n");
}
VkGraphicsPipelineCreateInfo pipelineInfo{};
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineInfo.stageCount = 2;
// FINALLY REFERENCE ALL TOGETHER
pipelineInfo.pStages = shaderStages;
pipelineInfo.pVertexInputState = &vertexInputInfo;
pipelineInfo.pInputAssemblyState = &inputAssembly;
pipelineInfo.pViewportState = &viewportState;
pipelineInfo.pRasterizationState = &rasterizer;
pipelineInfo.pMultisampleState = &multisampling;
pipelineInfo.pDepthStencilState = nullptr; // Optional because {} as initializer
pipelineInfo.pColorBlendState = &colorBlending;
pipelineInfo.pDynamicState = &dynamicState;
pipelineInfo.pDepthStencilState = &depthStencil;
pipelineInfo.layout = pipelineLayout;
pipelineInfo.renderPass = renderPass;
pipelineInfo.subpass = 0;
/* Performance optimization entrypoint
pipelineInfo.basePipelineIndex = -1;
pipelineInfo.basePipelineHandle = VK_NULL_HANDLE;
*/
if(vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &pipelineInfo, nullptr, &graphicsPipeline) !=
VK_SUCCESS){
throw std::runtime_error("Func; createGraphicsPipeline\nError: Failed to create graphics pipeline!\n");
}
vkDestroyShaderModule(device, vertShaderModule, nullptr);
vkDestroyShaderModule(device, fragShaderModule, nullptr);
}
VkShaderModule Vulkan::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 shaderModule;
if(vkCreateShaderModule(device, &createInfo, nullptr, &shaderModule) != VK_SUCCESS){
throw std::runtime_error("Func: createShaderModule\nError: Failed to create Shader Module!\n");
}
return shaderModule;
}
void Vulkan::createRenderPass(){
VkAttachmentDescription depthAttachment{};
depthAttachment.format = findDepthFormat();
depthAttachment.samples = msaaSamples;
depthAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
depthAttachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
depthAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
depthAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
depthAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;;
depthAttachment.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkAttachmentReference depthAttachmentRef{};
depthAttachmentRef.attachment = 1;
depthAttachmentRef.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkAttachmentDescription colorAttachment{};
colorAttachment.format = swapChainImageFormat;
colorAttachment.samples = msaaSamples;
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_COLOR_ATTACHMENT_OPTIMAL;
VkAttachmentReference colorAttachmentRef{};
colorAttachmentRef.attachment = 0;
colorAttachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkAttachmentDescription colorAttachmentResolve{};
colorAttachmentResolve.format = swapChainImageFormat;
colorAttachmentResolve.samples = VK_SAMPLE_COUNT_1_BIT;
colorAttachmentResolve.loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
colorAttachmentResolve.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
colorAttachmentResolve.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
colorAttachmentResolve.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
colorAttachmentResolve.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
colorAttachmentResolve.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
VkAttachmentReference colorAttachmentResolveRef{};
colorAttachmentResolveRef.attachment = 2;
colorAttachmentResolveRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkSubpassDescription subpass{};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &colorAttachmentRef;
subpass.pDepthStencilAttachment = &depthAttachmentRef;
subpass.pResolveAttachments = &colorAttachmentResolveRef;
VkSubpassDependency dependency{};
dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
dependency.dstSubpass = 0;
dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT | VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT;
dependency.srcAccessMask = 0;
dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT | VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT;;
dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT | VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;;
std::array<VkAttachmentDescription, 3> attachments = { colorAttachment, depthAttachment, colorAttachmentResolve };
VkRenderPassCreateInfo renderPassInfo{};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
renderPassInfo.pAttachments = attachments.data();
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpass;
renderPassInfo.dependencyCount = 1;
renderPassInfo.pDependencies = &dependency;
if(vkCreateRenderPass(device, &renderPassInfo, nullptr, &renderPass) != VK_SUCCESS){
throw std::runtime_error("Func: createRenderPass\nError: Failed to create render pass!\n");
}
}
void Vulkan::createFramebuffers(){
swapChainFramebuffers.resize(swapChainImageViews.size());
for(size_t i = 0; i < swapChainImageViews.size(); i++){
std::array<VkImageView, 3> attachments = { colorImageView, depthImageView, swapChainImageViews[i] };
VkFramebufferCreateInfo framebufferInfo{};
framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
framebufferInfo.renderPass = renderPass;
framebufferInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
framebufferInfo.pAttachments = attachments.data();
framebufferInfo.width = swapChainExtent.width;
framebufferInfo.height = swapChainExtent.height;
framebufferInfo.layers = 1;
if(vkCreateFramebuffer(device, &framebufferInfo, nullptr, &swapChainFramebuffers[i]) != VK_SUCCESS){
throw std::runtime_error("Func: createFramebuffers\nError: Failed to create Framebuffer!\n");
}
}
}
void Vulkan::createCommandPool(){
QueueFamilyIndices queueFamilyIndices = findQueueFamilies(physicalDevice);
VkCommandPoolCreateInfo poolInfo{};
poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
poolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
poolInfo.queueFamilyIndex = queueFamilyIndices.graphicsFamily.value();
if(vkCreateCommandPool(device, &poolInfo, nullptr, &commandPool) != VK_SUCCESS){
throw std::runtime_error("Func: createCommandPool\nError: Failed to create Command Pool!\n");
}
}
VkFormat Vulkan::findSupportedFormat(const std::vector<VkFormat> &candidates, VkImageTiling tiling, VkFormatFeatureFlags features){
for(VkFormat format : candidates){
VkFormatProperties props;
vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &props);
if(tiling == VK_IMAGE_TILING_LINEAR && (props.linearTilingFeatures & features) == features){
return format;
}
if(tiling == VK_IMAGE_TILING_OPTIMAL && (props.optimalTilingFeatures & features) == features){
return format;
}
}
throw std::runtime_error("Func: findSupportedFormat\nError: Failed to find supported Format!\n");
}
VkFormat Vulkan::findDepthFormat(){
return findSupportedFormat(
{ VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT },
VK_IMAGE_TILING_OPTIMAL,
VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT
);
}
bool hasStencilComponent(VkFormat format){
return format == VK_FORMAT_D32_SFLOAT_S8_UINT || format == VK_FORMAT_D24_UNORM_S8_UINT;
}
void Vulkan::createColorResources()
{
VkFormat colorFormat = swapChainImageFormat;
createImage(swapChainExtent.width, swapChainExtent.height, 1, msaaSamples, colorFormat, VK_IMAGE_TILING_OPTIMAL, VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, colorImage, colorImageMemory);
colorImageView = createImageView(colorImage, colorFormat, VK_IMAGE_ASPECT_COLOR_BIT, 1);
}
void Vulkan::createDepthResources(){
VkFormat depthFormat = findDepthFormat();
createImage(swapChainExtent.width, swapChainExtent.height, 1, msaaSamples, depthFormat, VK_IMAGE_TILING_OPTIMAL, VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, depthImage, depthImageMemory);
depthImageView = createImageView(depthImage, depthFormat, VK_IMAGE_ASPECT_DEPTH_BIT, 1);
}
VkCommandBuffer Vulkan::beginSingleTimeCommands(){
VkCommandBufferAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandPool = commandPool;
allocInfo.commandBufferCount = 1;
VkCommandBuffer commandBuffer;
vkAllocateCommandBuffers(device, &allocInfo, &commandBuffer);
VkCommandBufferBeginInfo beginInfo{};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
beginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
vkBeginCommandBuffer(commandBuffer, &beginInfo);
return commandBuffer;
}
void Vulkan::endSingleTimeCommands(VkCommandBuffer commandBuffer){
vkEndCommandBuffer(commandBuffer);
VkSubmitInfo submitInfo{};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffer;
vkQueueSubmit(graphicsQueue, 1, &submitInfo, VK_NULL_HANDLE);
vkQueueWaitIdle(graphicsQueue);
vkFreeCommandBuffers(device, commandPool, 1, &commandBuffer);
}
void Vulkan::copyBuffer(VkBuffer srcBuffer, VkBuffer dstBuffer, VkDeviceSize size){
VkCommandBuffer commandBuffer = beginSingleTimeCommands();
VkBufferCopy copyRegion{};
copyRegion.size = size;
vkCmdCopyBuffer(commandBuffer, srcBuffer, dstBuffer, 1, &copyRegion);
endSingleTimeCommands(commandBuffer);
}
void Vulkan::transitionImageLayout(VkImage image, VkFormat format, VkImageLayout oldLayout, VkImageLayout newLayout, uint32_t mipLevels){
VkCommandBuffer commandBuffer = beginSingleTimeCommands();
VkImageMemoryBarrier barrier{};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.oldLayout = oldLayout;
barrier.newLayout = newLayout;
barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barrier.image = image;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.baseMipLevel = 0;
barrier.subresourceRange.levelCount = mipLevels;
barrier.subresourceRange.baseArrayLayer = 0;
barrier.subresourceRange.layerCount = 1;
VkPipelineStageFlags sourceStage;
VkPipelineStageFlags destinationStage;
if(oldLayout == VK_IMAGE_LAYOUT_UNDEFINED && newLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL){
barrier.srcAccessMask = 0;
barrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
sourceStage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
destinationStage = VK_PIPELINE_STAGE_TRANSFER_BIT;
}
else if(oldLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL && newLayout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL){
barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
sourceStage = VK_PIPELINE_STAGE_TRANSFER_BIT;
destinationStage = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
}
else{
throw std::invalid_argument("Func: transitionImageLayout\nError: Unsupported Layout Transition!\n");
}
vkCmdPipelineBarrier(commandBuffer, sourceStage, destinationStage, 0, 0, nullptr, 0, nullptr, 1, &barrier);
endSingleTimeCommands(commandBuffer);
}
void Vulkan::copyBufferToImage(VkBuffer buffer, VkImage image, uint32_t width, uint32_t height){
VkCommandBuffer commandBuffer = beginSingleTimeCommands();
VkBufferImageCopy region{};
region.bufferOffset = 0;
region.bufferRowLength = 0;
region.bufferImageHeight = 0;
region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.imageSubresource.mipLevel = 0;
region.imageSubresource.baseArrayLayer = 0;
region.imageSubresource.layerCount = 1;
region.imageOffset = { 0, 0, 0 };
region.imageExtent = { width, height, 1 };
vkCmdCopyBufferToImage(commandBuffer, buffer, image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &region);
endSingleTimeCommands(commandBuffer);
}
void Vulkan::createImage(uint32_t width, uint32_t height, uint32_t mipLevels, VkSampleCountFlagBits numSamples, VkFormat format, VkImageTiling tiling, VkImageUsageFlags usage, VkMemoryPropertyFlags properties, VkImage &image, VkDeviceMemory &imageMemory){
VkImageCreateInfo imageInfo{};
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.imageType = VK_IMAGE_TYPE_2D; // 3D is used to store voxel volumes
imageInfo.extent.width = width;
imageInfo.extent.height = height;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = mipLevels;
imageInfo.arrayLayers = 1;
imageInfo.format = format;
imageInfo.tiling = tiling; // or LINEAR for direct memory access of texels, OPTIMAL provides efficient access from shader
imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageInfo.usage = usage;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageInfo.samples = numSamples;
imageInfo.flags = 0; // something tells me this has another value when using voxels
if(vkCreateImage(device, &imageInfo, nullptr, &image) != VK_SUCCESS){
throw std::runtime_error("Func: createImage\nError: Failed to create Image!\n");
}
VkMemoryRequirements memRequirements;
vkGetImageMemoryRequirements(device, image, &memRequirements);
VkMemoryAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits, properties);
if(vkAllocateMemory(device, &allocInfo, nullptr, &imageMemory) != VK_SUCCESS){
throw std::runtime_error("Func: createTextureImage\nError: Failed to allocate memory for Image!\n");
}
vkBindImageMemory(device, image, imageMemory, 0);
}
void Vulkan::generateMipmaps(VkImage image, VkFormat imageFormat, int32_t texWidth, int32_t texHeight, uint32_t mipLevels){
// normally mipmaps are stored alongside base level of image
VkFormatProperties formatProperties;
vkGetPhysicalDeviceFormatProperties(physicalDevice, imageFormat, &formatProperties);
if (!(formatProperties.optimalTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT))
{
throw std::runtime_error("Func: generateMipmaps\nError: Texture Image Format does not support linear blitting!\n");
}
VkCommandBuffer commandBuffer = beginSingleTimeCommands();
VkImageMemoryBarrier barrier{};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.image = image;
barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.baseArrayLayer = 0;
barrier.subresourceRange.layerCount = 1;
barrier.subresourceRange.levelCount = 1;
int32_t mipWidth = texWidth;
int32_t mipHeight = texHeight;
for (uint32_t i = 1; i < mipLevels; i++)
{
barrier.subresourceRange.baseMipLevel = i - 1;
barrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
barrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
barrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
vkCmdPipelineBarrier(commandBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
VkImageBlit blit{};
blit.srcOffsets[0] = { 0, 0, 0 };
blit.srcOffsets[1] = { mipWidth, mipHeight, 1 };
blit.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
blit.srcSubresource.mipLevel = i - 1;
blit.srcSubresource.baseArrayLayer = 0;
blit.srcSubresource.layerCount = 1;
blit.dstOffsets[0] = { 0, 0, 0 };
blit.dstOffsets[1] = { mipWidth > 1 ? mipWidth / 2 : 1, mipHeight > 1 ? mipHeight / 2 : 1, 1 };
blit.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
blit.dstSubresource.mipLevel = i;
blit.dstSubresource.baseArrayLayer = 0;
blit.dstSubresource.layerCount = 1;
vkCmdBlitImage(commandBuffer, image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &blit, VK_FILTER_LINEAR);
barrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
barrier.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
barrier.srcAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
vkCmdPipelineBarrier(commandBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
if (mipWidth > 1) mipWidth /= 2;
if (mipHeight > 1) mipHeight /= 2;
}
barrier.subresourceRange.baseMipLevel = mipLevels - 1;
barrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
barrier.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
vkCmdPipelineBarrier(commandBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
endSingleTimeCommands(commandBuffer);
}
void Vulkan::createTextureImage(){
int texWidth, texHeight, texChannels;
if(MODEL_PATH == "" || TEXTURE_PATH == ""){
throw std::runtime_error("Func: createTextureImage\nError: No file was given in MODEL_PATH or TEXTURE_PATH!\n");
}
stbi_uc *pixels = stbi_load(TEXTURE_PATH.c_str(), &texWidth, &texHeight, &texChannels, STBI_rgb_alpha);
VkDeviceSize imageSize = texWidth * texHeight * 4; // 4 bytes per pixel
mipLevels = static_cast<uint32_t>(std::floor(std::log2(std::max(texWidth, texHeight)))) + 1;
if(!pixels) throw std::runtime_error("Func: createTextureImage\nError: Failed to load Texture Image!\n");
VkBuffer stagingBuffer;
VkDeviceMemory stagingBufferMemory;
createBuffer(imageSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, stagingBuffer, stagingBufferMemory);
void *data;
vkMapMemory(device, stagingBufferMemory, 0, imageSize, 0, &data);
memcpy(data, pixels, static_cast<size_t>(imageSize));
vkUnmapMemory(device, stagingBufferMemory);
stbi_image_free(pixels);
createImage(texWidth, texHeight, mipLevels, VK_SAMPLE_COUNT_1_BIT, VK_FORMAT_R8G8B8A8_SRGB, VK_IMAGE_TILING_OPTIMAL, VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, textureImage, textureImageMemory);
transitionImageLayout(textureImage, VK_FORMAT_R8G8B8A8_SRGB, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, mipLevels);
copyBufferToImage(stagingBuffer, textureImage, static_cast<uint32_t>(texWidth), static_cast<uint32_t>(texHeight));
// removed because of mipmapping
// transitionImageLayout(textureImage, VK_FORMAT_R8G8B8A8_SRGB, VK_IMAGE_LAYOUT_UNDEFINED /*TRANSFER_DST_OPTIMAL*/, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL /*SHADER_READ_ONLY_OPTIMAL*/, mipLevels);
vkDestroyBuffer(device, stagingBuffer, nullptr);
vkFreeMemory(device, stagingBufferMemory, nullptr);
generateMipmaps(textureImage, VK_FORMAT_R8G8B8A8_SRGB, texWidth, texHeight, mipLevels);
}
VkImageView Vulkan::createImageView(VkImage image, VkFormat format, VkImageAspectFlags aspectFlags, uint32_t mipLevels){
VkImageViewCreateInfo viewInfo{};
viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
viewInfo.image = image;
viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
viewInfo.format = format;
viewInfo.subresourceRange.aspectMask = aspectFlags;
viewInfo.subresourceRange.baseMipLevel = 0;
viewInfo.subresourceRange.levelCount = mipLevels;
viewInfo.subresourceRange.baseArrayLayer = 0;
viewInfo.subresourceRange.layerCount = 1;
VkImageView imageView;
if(vkCreateImageView(device, &viewInfo, nullptr, &imageView) != VK_SUCCESS){
throw std::runtime_error("Func: createTextureImageView\nError: Failed to create Texture Image View!\n");
}
return imageView;
}
void Vulkan::createTextureImageView(){
textureImageView = createImageView(textureImage, VK_FORMAT_R8G8B8A8_SRGB, VK_IMAGE_ASPECT_COLOR_BIT, mipLevels);
}
void Vulkan::createTextureSampler(){
VkSamplerCreateInfo samplerInfo{};
samplerInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
samplerInfo.magFilter = VK_FILTER_LINEAR;
samplerInfo.minFilter = VK_FILTER_LINEAR;
// INFO: Here can preferences be used -> instead of REPEAT I use CLAMP_TO_EDGE to get this nice eye cancer
samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
// INFO: filter user preferences here
samplerInfo.anisotropyEnable = VK_TRUE;
VkPhysicalDeviceProperties properties{};
vkGetPhysicalDeviceProperties(physicalDevice, &properties);
samplerInfo.maxAnisotropy = properties.limits.maxSamplerAnisotropy;
samplerInfo.borderColor = VK_BORDER_COLOR_INT_OPAQUE_BLACK;
samplerInfo.unnormalizedCoordinates = VK_FALSE;
samplerInfo.compareEnable = VK_FALSE;
samplerInfo.compareOp = VK_COMPARE_OP_ALWAYS;
samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
samplerInfo.minLod = /*static_cast<float>(mipLevels / 2);*/ 0.0f;
samplerInfo.maxLod = static_cast<float>(mipLevels);
samplerInfo.mipLodBias = 0.0f;
if(vkCreateSampler(device, &samplerInfo, nullptr, &textureSampler) != VK_SUCCESS){
throw std::runtime_error("Func: createTextureSampler\nError: Failed to create Texture Sampler!\n");
}
}
uint32_t Vulkan::findMemoryType(uint32_t typeFilter, VkMemoryPropertyFlags properties){
VkPhysicalDeviceMemoryProperties memProperties;
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memProperties);
for(uint32_t i = 0; i < memProperties.memoryTypeCount; i++){
if(typeFilter & (1 << i) && (memProperties.memoryTypes[i].propertyFlags & properties) == properties) return i;
}
throw std::runtime_error("Func: findMemoryType\nError: Failed to find suitable memory type!\n");
}
void Vulkan::createBuffer(VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags properties, VkBuffer &buffer, VkDeviceMemory &bufferMemory){
VkBufferCreateInfo bufferInfo{};
bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.size = size;
bufferInfo.usage = usage;
bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
if(vkCreateBuffer(device, &bufferInfo, nullptr, &buffer) != VK_SUCCESS){
throw std::runtime_error("Func: createBuffer\nError: Failed to create buffer!\n");
}
VkMemoryRequirements memRequirements;
vkGetBufferMemoryRequirements(device, buffer, &memRequirements);
VkMemoryAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits, properties);
// TODO: switch vkAllocateMemory with own implementation or GPUOpen's VulkanMemoryAllocator
if(vkAllocateMemory(device, &allocInfo, nullptr, &bufferMemory) != VK_SUCCESS){
throw std::runtime_error("Func: createBuffer\nError: Failed to allocate memory for buffer!\n");
}
vkBindBufferMemory(device, buffer, bufferMemory, 0);
}
void Vulkan::copyBufferOld(VkBuffer srcBuffer, VkBuffer dstBuffer, VkDeviceSize size){
VkCommandBufferAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandPool = commandPool;
allocInfo.commandBufferCount = 1;
VkCommandBuffer commandBuffer;
vkAllocateCommandBuffers(device, &allocInfo, &commandBuffer);
VkCommandBufferBeginInfo beginInfo{};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
beginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
vkBeginCommandBuffer(commandBuffer, &beginInfo);
VkBufferCopy copyRegion{};
copyRegion.size = size;
vkCmdCopyBuffer(commandBuffer, srcBuffer, dstBuffer, 1, &copyRegion);
vkEndCommandBuffer(commandBuffer);
VkSubmitInfo submitInfo{};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffer;
vkQueueSubmit(graphicsQueue, 1, &submitInfo, VK_NULL_HANDLE);
vkQueueWaitIdle(graphicsQueue);
vkFreeCommandBuffers(device, commandPool, 1, &commandBuffer);
}
void Vulkan::loadModel(){
tinyobj::attrib_t attrib;
std::vector<tinyobj::shape_t> shapes;
std::vector<tinyobj::material_t> materials;
std::string warn, err;
if(!tinyobj::LoadObj(&attrib, &shapes, &materials, &warn, &err, MODEL_PATH.c_str())){
throw std::runtime_error("Func: loadModel\nError: " + warn + err + "\n");
}
std::unordered_map<Vertex, uint32_t> uniqueVertices{};
for(const auto &shape : shapes){
for(const auto &index : shape.mesh.indices){
Vertex vertex{};
vertex.pos = {
attrib.vertices[3 * index.vertex_index + 0],
attrib.vertices[3 * index.vertex_index + 1],
attrib.vertices[3 * index.vertex_index + 2],
};
vertex.texCoord = {
attrib.texcoords[2 * index.texcoord_index + 0],
1.0f - attrib.texcoords[2 * index.texcoord_index + 1],
};
vertex.color = { 1.0f, 1.0f, 1.0f };
if(!uniqueVertices.contains(vertex)){
uniqueVertices[vertex] = static_cast<uint32_t>(vertices.size());
vertices.push_back(vertex);
}
indices.push_back(uniqueVertices[vertex]);
}
}
}
void Vulkan::createVertexBuffer(){
VkDeviceSize bufferSize = sizeof(vertices[0]) * vertices.size();
VkBuffer stagingBuffer;
VkDeviceMemory stagingBufferMemory;
createBuffer(bufferSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, stagingBuffer, stagingBufferMemory);
void *data;
vkMapMemory(device, stagingBufferMemory, 0, bufferSize, 0, &data);
memcpy(data, vertices.data(), (size_t)bufferSize);
vkUnmapMemory(device, stagingBufferMemory);
createBuffer(bufferSize, VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, vertexBuffer, vertexBufferMemory);
copyBuffer(stagingBuffer, vertexBuffer, bufferSize);
vkDestroyBuffer(device, stagingBuffer, nullptr);
vkFreeMemory(device, stagingBufferMemory, nullptr);
}
void Vulkan::createIndexBuffer(){
VkDeviceSize bufferSize = sizeof(indices[0]) * indices.size();
VkBuffer stagingBuffer;
VkDeviceMemory stagingBufferMemory;
createBuffer(bufferSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, stagingBuffer, stagingBufferMemory);
void *data;
vkMapMemory(device, stagingBufferMemory, 0, bufferSize, 0, &data);
memcpy(data, indices.data(), (size_t)bufferSize);
vkUnmapMemory(device, stagingBufferMemory);
createBuffer(bufferSize, VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, indexBuffer, indexBufferMemory);
copyBuffer(stagingBuffer, indexBuffer, bufferSize);
vkDestroyBuffer(device, stagingBuffer, nullptr);
vkFreeMemory(device, stagingBufferMemory, nullptr);
}
void Vulkan::createUniformBuffers(){
VkDeviceSize bufferSize = sizeof(UniformBufferObject);
uniformBuffers.resize(MAX_FRAMES_IN_FLIGHT);
uniformBuffersMemory.resize(MAX_FRAMES_IN_FLIGHT);
uniformBuffersMapped.resize(MAX_FRAMES_IN_FLIGHT);
for(size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++){
createBuffer(bufferSize, VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, uniformBuffers[i], uniformBuffersMemory[i]);
vkMapMemory(device, uniformBuffersMemory[i], 0, bufferSize, 0, &uniformBuffersMapped[i]);
}
}
void Vulkan::createDescriptorPool(){
std::array<VkDescriptorPoolSize, 2> poolSizes{};
poolSizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
poolSizes[0].descriptorCount = static_cast<uint32_t>(MAX_FRAMES_IN_FLIGHT);
poolSizes[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
poolSizes[1].descriptorCount = static_cast<uint32_t>(MAX_FRAMES_IN_FLIGHT);
VkDescriptorPoolCreateInfo poolInfo{};
poolInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
poolInfo.poolSizeCount = static_cast<uint32_t>(poolSizes.size());
poolInfo.pPoolSizes = poolSizes.data();
poolInfo.maxSets = static_cast<uint32_t>(MAX_FRAMES_IN_FLIGHT);
if(vkCreateDescriptorPool(device, &poolInfo, nullptr, &descriptorPool) != VK_SUCCESS){
throw std::runtime_error("Func: createDescriptorPool\nError: Failed to create Descriptor Pool!\n");
}
}
void Vulkan::createDescriptorSets(){
std::vector<VkDescriptorSetLayout> layouts(MAX_FRAMES_IN_FLIGHT, descriptorSetLayout);
VkDescriptorSetAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
allocInfo.descriptorPool = descriptorPool;
allocInfo.descriptorSetCount = static_cast<uint32_t>(MAX_FRAMES_IN_FLIGHT);
allocInfo.pSetLayouts = layouts.data();
descriptorSets.resize(MAX_FRAMES_IN_FLIGHT);
if(vkAllocateDescriptorSets(device, &allocInfo, descriptorSets.data()) != VK_SUCCESS){
throw std::runtime_error("Func: createDescriptorSets\nError: Failed to allocate Descriptor Sets!\n");
}
for(size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++){
VkDescriptorBufferInfo bufferInfo{};
bufferInfo.buffer = uniformBuffers[i];
bufferInfo.offset = 0;
bufferInfo.range = sizeof(UniformBufferObject);
VkDescriptorImageInfo imageInfo{};
imageInfo.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
imageInfo.imageView = textureImageView;
imageInfo.sampler = textureSampler;
std::array<VkWriteDescriptorSet, 2> descriptorWrites{};
descriptorWrites[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptorWrites[0].dstSet = descriptorSets[i];
descriptorWrites[0].dstBinding = 0;
descriptorWrites[0].dstArrayElement = 0;
descriptorWrites[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptorWrites[0].descriptorCount = 1;
descriptorWrites[0].pBufferInfo = &bufferInfo;
descriptorWrites[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptorWrites[1].dstSet = descriptorSets[i];
descriptorWrites[1].dstBinding = 1;
descriptorWrites[1].dstArrayElement = 0;
descriptorWrites[1].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
descriptorWrites[1].descriptorCount = 1;
descriptorWrites[1].pImageInfo = &imageInfo;
vkUpdateDescriptorSets(device, static_cast<uint32_t>(descriptorWrites.size()), descriptorWrites.data(), 0, nullptr);
}
}
void Vulkan::createCommandBuffers(){
commandBuffers.resize(MAX_FRAMES_IN_FLIGHT);
VkCommandBufferAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.commandPool = commandPool;
allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandBufferCount = (uint32_t)commandBuffers.size();
if(vkAllocateCommandBuffers(device, &allocInfo, commandBuffers.data()) != VK_SUCCESS){
throw std::runtime_error("Func: createCommandBuffer\nError: Failed to allocate Command Buffers!\n");
}
}
void Vulkan::recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t imageIndex){
VkCommandBufferBeginInfo beginInfo{};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
if(vkBeginCommandBuffer(commandBuffer, &beginInfo) != VK_SUCCESS){
throw std::runtime_error("Func: recordCommandBuffer\nError: Failed to begin recording command buffer!\n");
}
VkRenderPassBeginInfo renderPassInfo{};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
renderPassInfo.renderPass = renderPass;
renderPassInfo.framebuffer = swapChainFramebuffers[imageIndex];
renderPassInfo.renderArea.offset = {0, 0};
renderPassInfo.renderArea.extent = swapChainExtent;
std::array<VkClearValue, 2> clearValues{};
clearValues[0].color = {{0.01f, 0.01f, 0.01f, 1.0f}}; // Background color after clear (Black 100%)
clearValues[1].depthStencil = { 1.0f, 0 };
renderPassInfo.clearValueCount = static_cast<uint32_t>(clearValues.size());
renderPassInfo.pClearValues = clearValues.data();
vkCmdBeginRenderPass(commandBuffer, &renderPassInfo, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
VkBuffer vertexBuffers[] = { vertexBuffer };
VkDeviceSize offsets[] = { 0 };
vkCmdBindVertexBuffers(commandBuffer, 0, 1, vertexBuffers, offsets);
vkCmdBindIndexBuffer(commandBuffer, indexBuffer, 0, VK_INDEX_TYPE_UINT32);
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;
vkCmdSetViewport(commandBuffer, 0, 1, &viewport);
VkRect2D scissor{};
scissor.offset = {0, 0};
scissor.extent = swapChainExtent;
vkCmdSetScissor(commandBuffer, 0, 1, &scissor);
vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSets[currentFrame], 0, nullptr);
// vkCmdDraw(commandBuffer, static_cast<uint32_t>(vertices.size()), 1, 0, 0);
// -> goto indexed draw
vkCmdDrawIndexed(commandBuffer, static_cast<uint32_t>(indices.size()), 1, 0, 0, 0);
vkCmdEndRenderPass(commandBuffer);
if(vkEndCommandBuffer(commandBuffer) != VK_SUCCESS){
throw std::runtime_error("Func: recordCommandBuffer\nError: Failed to record command buffer!\n");
}
}
void Vulkan::createSyncObjects(){
imageAvailableSemaphores.resize(MAX_FRAMES_IN_FLIGHT);
renderFinishedSemaphores.resize(MAX_FRAMES_IN_FLIGHT);
inFlightFences.resize(MAX_FRAMES_IN_FLIGHT);
VkSemaphoreCreateInfo semaphoreInfo{};
semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
VkFenceCreateInfo fenceInfo{};
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
for(size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++){
if(vkCreateSemaphore(device, &semaphoreInfo, nullptr, &imageAvailableSemaphores[i]) != VK_SUCCESS
|| vkCreateSemaphore(device, &semaphoreInfo, nullptr, &renderFinishedSemaphores[i]) != VK_SUCCESS
|| vkCreateFence(device, &fenceInfo, nullptr, &inFlightFences[i]) != VK_SUCCESS){
throw std::runtime_error("Func: createSyncObjects\nError: Failed to create semaphores!\n");
}
}
}
void Vulkan::updateUniformBuffer(uint32_t currentFrame){
static auto startTime = std::chrono::high_resolution_clock::now();
auto currentTime = std::chrono::high_resolution_clock::now();
float time = std::chrono::duration<float, std::chrono::seconds::period>(currentTime - startTime).count();
// to not pass rotation over time instead by fps
// float time = (currentTime - startTime).count();
UniformBufferObject ubo{};
// INFO: Change here for other angles
ubo.model = glm::rotate(glm::mat4(1.0f), time * glm::radians(0.0f), glm::vec3(0.0f, 0.0f, 1.0f));
ubo.view = glm::lookAt(cameraPos, cameraFront, cameraUp);
ubo.proj = glm::perspective(glm::radians(45.0f), swapChainExtent.width / (float)swapChainExtent.height, 0.1f, 10.0f);
// removing this line results in the image rendering upside down
ubo.proj[1][1] *= -1;
memcpy(uniformBuffersMapped[currentFrame], &ubo, sizeof(ubo));
}
void Vulkan::drawFrame(){
vkWaitForFences(device, 1, &inFlightFences[currentFrame], VK_TRUE, UINT64_MAX);
vkResetFences(device, 1, &inFlightFences[currentFrame]);
uint32_t imageIndex;
VkResult result = vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores[currentFrame], VK_NULL_HANDLE, &imageIndex);
// INFO: is this right here?
// vkResetFences(device, 1, &inFlightFences[currentFrame]);
vkResetCommandBuffer(commandBuffers[currentFrame], 0);
recordCommandBuffer(commandBuffers[currentFrame], imageIndex);
updateUniformBuffer(currentFrame);
VkSubmitInfo submitInfo{};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
VkSemaphore waitSemaphores[] = {imageAvailableSemaphores[currentFrame]};
VkPipelineStageFlags waitStages[] = {VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT};
submitInfo.waitSemaphoreCount = 1;
submitInfo.pWaitSemaphores = waitSemaphores;
submitInfo.pWaitDstStageMask = waitStages;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffers[currentFrame];
VkSemaphore signalSemaphore[] = {renderFinishedSemaphores[currentFrame]};
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = signalSemaphore;
if(vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFences[currentFrame]) != VK_SUCCESS){
throw std::runtime_error("Func: drawFrame\nError: Failed to submit draw command buffer!\n");
}
VkPresentInfoKHR presentInfo{};
presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
presentInfo.waitSemaphoreCount = 1;
presentInfo.pWaitSemaphores = signalSemaphore;
VkSwapchainKHR swapChains[] = {swapChain};
presentInfo.swapchainCount = 1;
presentInfo.pSwapchains = swapChains;
presentInfo.pImageIndices = &imageIndex;
vkQueuePresentKHR(presentQueue, &presentInfo);
if(result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR || framebufferResized){
framebufferResized = false;
recreateSwapChain();
}
else if(result != VK_SUCCESS){
throw std::runtime_error("Func: drawFrame\nError: Failed to acquire swap chain image!\n");
}
currentFrame = (currentFrame + 1) % MAX_FRAMES_IN_FLIGHT;
}
void Vulkan::cleanupSwapChain(){
vkDestroyImageView(device, colorImageView, nullptr);
vkDestroyImage(device, colorImage, nullptr);
vkFreeMemory(device, colorImageMemory, nullptr);
vkDestroyImageView(device, depthImageView, nullptr);
vkDestroyImage(device, depthImage, nullptr);
vkFreeMemory(device, depthImageMemory, nullptr);
for(const auto & swapChainFramebuffer : swapChainFramebuffers)
{ vkDestroyFramebuffer(device, swapChainFramebuffer, nullptr); }
for(const auto & swapChainImageView : swapChainImageViews)
{ vkDestroyImageView(device, swapChainImageView, nullptr); }
vkDestroySwapchainKHR(device, swapChain, nullptr);
}
void Vulkan::recreateSwapChain(){
int width = 0, height = 0;
while(width == 0 || height == 0){
glfwGetFramebufferSize(window, &width, &height);
glfwPollEvents();
}
vkDeviceWaitIdle(device);
cleanupSwapChain();
createSwapChain();
createImageViews();
createColorResources();
createDepthResources();
createFramebuffers();
}
static void framebufferResizeCallback(GLFWwindow *window, int width, int height){
auto app = reinterpret_cast<Vulkan*>(glfwGetWindowUserPointer(window));
app->framebufferResized = true;
}
static void handleMouseInputCallback(GLFWwindow* window, double xpos, double ypos) {
Vulkan* vulkan = static_cast<Vulkan*>(glfwGetWindowUserPointer(window));
if (vulkan) {
vulkan->handleMouseInput(window, xpos, ypos);
}
}
void Vulkan::initWindow(const char *windowName){
glfwInit();
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); // tell glfw to not use opengl
glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); // disable window resize
this->window = glfwCreateWindow(static_cast<int>(_width), static_cast<int>(_height), windowName, nullptr, nullptr);
glfwSetWindowUserPointer(window, this);
glfwSetFramebufferSizeCallback(window, framebufferResizeCallback);
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
glfwSetCursorPosCallback(window, handleMouseInputCallback);
}
void Vulkan::initVulkan(){
createInstance();
setupDebugMessenger();
createSurface();
pickPhysicalDevice();
createLogicalDevice();
createSwapChain();
createImageViews();
createRenderPass();
createDescriptorSetLayout();
createGraphicsPipeline();
createCommandPool();
createColorResources();
createDepthResources();
createFramebuffers();
createTextureImage();
createTextureImageView();
createTextureSampler();
loadModel();
createVertexBuffer();
createIndexBuffer();
createUniformBuffers();
createDescriptorPool();
createDescriptorSets();
createCommandBuffers();
createSyncObjects();
}
void Vulkan::mainLoop(){
while(!glfwWindowShouldClose(this->window)){
// glfwSwapBuffers(window);
glfwPollEvents();
handleKeyboardInput();
drawFrame();
}
vkDeviceWaitIdle(device);
}
void Vulkan::cleanup(){
// Vulkan
cleanupSwapChain();
vkDestroySampler(device, textureSampler, nullptr);
vkDestroyImageView(device, textureImageView, nullptr);
vkDestroyImage(device, textureImage, nullptr);
vkFreeMemory(device, textureImageMemory, nullptr);
for(size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++){
vkDestroyBuffer(device, uniformBuffers[i], nullptr);
vkFreeMemory(device, uniformBuffersMemory[i], nullptr);
}
vkDestroyDescriptorPool(device, descriptorPool, nullptr);
vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
vkDestroyBuffer(device, indexBuffer, nullptr);
vkFreeMemory(device, indexBufferMemory, nullptr);
vkDestroyBuffer(device, vertexBuffer, nullptr);
vkFreeMemory(device, vertexBufferMemory, nullptr);
vkDestroyPipeline(device, graphicsPipeline, nullptr);
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
vkDestroyRenderPass(device, renderPass, nullptr);
for(size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++){
vkDestroySemaphore(device, imageAvailableSemaphores[i], nullptr);
vkDestroySemaphore(device, renderFinishedSemaphores[i], nullptr);
vkDestroyFence(device, inFlightFences[i], nullptr);
}
vkDestroyCommandPool(device, commandPool, nullptr);
vkDestroyDevice(device, nullptr);
if(enableValidationLayers){
DestroyDebugUtilsMessengerEXT(instance, debugMessenger, nullptr);
}
vkDestroySurfaceKHR(instance, surface, nullptr);
vkDestroyInstance(instance, nullptr);
// GLFW
glfwDestroyWindow(this->window);
glfwTerminate();
}
void Vulkan::run(const char *windowName, const uint32_t width, const uint32_t height){
this->_width = width;
this->_height = height;
initWindow(windowName);
initVulkan();
mainLoop();
cleanup();
}
}