mirror of
https://github.com/love2d/love.git
synced 2026-08-16 00:02:12 +02:00
hello world triangle
This commit is contained in:
niki
@@ -0,0 +1,861 @@
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#include "Graphics.h"
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#include "SDL_vulkan.h"
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#include "window/Window.h"
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#include "common/Exception.h"
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#include "Shader.h"
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#include <vector>
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#include <cstring>
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#include <set>
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#include <fstream>
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#include <iostream>
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namespace love {
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namespace graphics {
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namespace vulkan {
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const std::vector<const char*> validationLayers = {
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"VK_LAYER_KHRONOS_validation"
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};
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const std::vector<const char*> 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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const int MAX_FRAMES_IN_FLIGHT = 2;
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static std::vector<char> readFile(const std::string& filename) {
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std::ifstream file(filename, std::ios::ate | std::ios::binary);
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if (!file.is_open()) {
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throw std::runtime_error("failed to open file!");
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}
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size_t fileSize = (size_t)file.tellg();
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std::vector<char> buffer(fileSize);
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file.seekg(0);
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file.read(buffer.data(), fileSize);
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file.close();
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return buffer;
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}
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const char* Graphics::getName() const {
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return "love.graphics.vulkan";
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}
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Graphics::Graphics() {
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}
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void Graphics::initVulkan() {
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if (!init) {
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std::cout << "initVulkan" << std::endl;
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init = true;
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createVulkanInstance();
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std::cout << "create vulkan instance" << std::endl;
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createSurface();
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std::cout << "create surface" << std::endl;
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pickPhysicalDevice();
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std::cout << "create physical device" << std::endl;
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createLogicalDevice();
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std::cout << "create logical device" << std::endl;
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createSwapChain();
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std::cout << "create swap chain" << std::endl;
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createImageViews();
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std::cout << "create image views" << std::endl;
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createRenderPass();
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std::cout << "create render pass" << std::endl;
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createGraphicsPipeline();
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std::cout << "create graphics pipeline" << std::endl;
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createFramebuffers();
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std::cout << "create frame buffers" << std::endl;
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createCommandPool();
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std::cout << "create command pool" << std::endl;
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createCommandBuffers();
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std::cout << "create command buffers" << std::endl;
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createSyncObjects();
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std::cout << "create sync objects" << std::endl;
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}
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}
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Graphics::~Graphics() {
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if (init) {
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for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) {
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vkDestroySemaphore(device, renderFinishedSemaphores.at(i), nullptr);
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vkDestroySemaphore(device, imageAvailableSemaphores.at(i), nullptr);
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vkDestroyFence(device, inFlightFences.at(i), nullptr);
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}
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if (vkDeviceWaitIdle(device) != VK_SUCCESS) {
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throw love::Exception("vkDeviceWaitIdle failed");
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}
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vkDestroyCommandPool(device, commandPool, nullptr);
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for (auto framebuffer : swapChainFramBuffers) {
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vkDestroyFramebuffer(device, framebuffer, nullptr);
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}
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vkDestroyPipeline(device, graphicsPipeline, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyRenderPass(device, renderPass, nullptr);
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for (auto imageView : swapChainImageViews) {
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vkDestroyImageView(device, imageView, nullptr);
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}
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vkDestroySwapchainKHR(device, swapChain, nullptr);
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vkDestroyDevice(device, nullptr);
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vkDestroySurfaceKHR(instance, surface, nullptr);
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vkDestroyInstance(instance, nullptr);
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}
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}
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void Graphics::present(void* screenshotCallbackdata) {
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vkWaitForFences(device, 1, &inFlightFences[currentFrame], VK_TRUE, UINT64_MAX);
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uint32_t imageIndex;
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vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores[currentFrame], VK_NULL_HANDLE, &imageIndex);
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if (imagesInFlight[imageIndex] != VK_NULL_HANDLE) {
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vkWaitForFences(device, 1, &imagesInFlight.at(imageIndex), VK_TRUE, UINT64_MAX);
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}
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imagesInFlight[imageIndex] = inFlightFences[currentFrame];
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VkSubmitInfo submitInfo{};
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submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
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VkSemaphore waitSemaphores[] = { imageAvailableSemaphores.at(currentFrame) };
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VkPipelineStageFlags waitStages[] = { VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT };
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submitInfo.waitSemaphoreCount = 1;
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submitInfo.pWaitSemaphores = waitSemaphores;
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submitInfo.pWaitDstStageMask = waitStages;
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submitInfo.commandBufferCount = 1;
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submitInfo.pCommandBuffers = &commandBuffers[imageIndex];
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VkSemaphore signalSemaphores[] = { renderFinishedSemaphores.at(currentFrame) };
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submitInfo.signalSemaphoreCount = 1;
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submitInfo.pSignalSemaphores = signalSemaphores;
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vkResetFences(device, 1, &inFlightFences[currentFrame]);
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if (vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFences.at(currentFrame)) != VK_SUCCESS) {
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throw love::Exception("failed to submit draw command buffer");
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}
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VkPresentInfoKHR presentInfo{};
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presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
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presentInfo.waitSemaphoreCount = 1;
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presentInfo.pWaitSemaphores = signalSemaphores;
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VkSwapchainKHR swapChains[] = { swapChain };
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presentInfo.swapchainCount = 1;
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presentInfo.pSwapchains = swapChains;
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presentInfo.pImageIndices = &imageIndex;
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vkQueuePresentKHR(presentQueue, &presentInfo);
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currentFrame = (currentFrame + 1) % MAX_FRAMES_IN_FLIGHT;
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}
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void Graphics::createVulkanInstance() {
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if (enableValidationLayers && !checkValidationSupport()) {
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throw love::Exception("validation layers requested, but not available");
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}
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VkApplicationInfo appInfo{};
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appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
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appInfo.pApplicationName = "LOVE";
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appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0); //todo, get this version from somewhere else?
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appInfo.pEngineName = "LOVE Engine";
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appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0); //todo, same as above
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appInfo.apiVersion = VK_API_VERSION_1_0;
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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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createInfo.pNext = nullptr;
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auto window = Module::getInstance<love::window::Window>(M_WINDOW);
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const void* handle = window->getHandle();
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unsigned int count;
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if (SDL_Vulkan_GetInstanceExtensions((SDL_Window*)handle, &count, nullptr) != SDL_TRUE) {
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throw love::Exception("couldn't retrieve sdl vulkan extensions");
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}
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std::vector<const char*> extensions = {}; // can add more here
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size_t addition_extension_count = extensions.size();
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extensions.resize(addition_extension_count + count);
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if (SDL_Vulkan_GetInstanceExtensions((SDL_Window*)handle, &count, extensions.data() + addition_extension_count) != SDL_TRUE) {
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throw love::Exception("couldn't retrieve sdl vulkan extensions");
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}
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createInfo.enabledExtensionCount = static_cast<uint32_t>(extensions.size());
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createInfo.ppEnabledExtensionNames = extensions.data();
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if (enableValidationLayers) {
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createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
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createInfo.ppEnabledLayerNames = validationLayers.data();
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}
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else {
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createInfo.enabledLayerCount = 0;
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createInfo.ppEnabledLayerNames = nullptr;
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}
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if (vkCreateInstance(
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&createInfo,
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nullptr,
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&instance) != VK_SUCCESS) {
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throw love::Exception("couldn't create vulkan instance");
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}
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}
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bool Graphics::checkValidationSupport() {
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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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void Graphics::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 love::Exception("failed to find GPUs with Vulkan support");
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}
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std::vector<VkPhysicalDevice> devices(deviceCount);
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vkEnumeratePhysicalDevices(instance, &deviceCount, devices.data());
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std::multimap<int, VkPhysicalDevice> candidates;
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for (const auto& device : devices) {
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int score = rateDeviceSuitability(device);
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candidates.insert(std::make_pair(score, device));
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}
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if (candidates.rbegin()->first > 0) {
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physicalDevice = candidates.rbegin()->second;
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}
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else {
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throw love::Exception("failed to find a suitable gpu");
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}
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}
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bool Graphics::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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int Graphics::rateDeviceSuitability(VkPhysicalDevice device) {
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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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int score = 1;
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// optional
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if (deviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) {
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score += 1000;
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}
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// definitely needed
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QueueFamilyIndices indices = findQueueFamilies(device);
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if (!indices.isComplete()) {
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score = 0;
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}
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bool extensionsSupported = checkDeviceExtensionSupport(device);
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if (!extensionsSupported) {
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score = 0;
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}
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if (extensionsSupported) {
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auto swapChainSupport = querySwapChainSupport(device);
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bool swapChainAdequate = !swapChainSupport.formats.empty() && !swapChainSupport.presentModes.empty();
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if (!swapChainAdequate) {
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score = 0;
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}
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}
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return score;
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}
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Graphics::QueueFamilyIndices Graphics::findQueueFamilies(VkPhysicalDevice device) {
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QueueFamilyIndices indices;
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uint32_t queueFamilyCount = 0;
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vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, nullptr);
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std::vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
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vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, queueFamilies.data());
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int i = 0;
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for (const auto& queueFamily : queueFamilies) {
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if (queueFamily.queueFlags & VK_QUEUE_GRAPHICS_BIT) {
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indices.graphicsFamily = i;
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}
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VkBool32 presentSupport = false;
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vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &presentSupport);
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if (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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void Graphics::createLogicalDevice() {
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QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
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std::vector<VkDeviceQueueCreateInfo> queueCreateInfos;
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std::set<uint32_t> uniqueQueueFamilies = { indices.graphicsFamily.value(), indices.presentFamily.value() };
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float queuePriority = 1.0f;
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for (uint32_t queueFamily : uniqueQueueFamilies) {
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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.queueCreateInfoCount = static_cast<uint32_t>(queueCreateInfos.size());
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createInfo.pQueueCreateInfos = queueCreateInfos.data();
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createInfo.pEnabledFeatures = &deviceFeatures;
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createInfo.enabledExtensionCount = static_cast<uint32_t>(deviceExtensions.size());
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createInfo.ppEnabledExtensionNames = deviceExtensions.data();
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// can this be removed?
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if (enableValidationLayers) {
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createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
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createInfo.ppEnabledLayerNames = validationLayers.data();
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}
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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) != VK_SUCCESS) {
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throw love::Exception("failed to create logical device");
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}
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vkGetDeviceQueue(device, indices.graphicsFamily.value(), 0, &graphicsQueue);
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vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
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}
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void Graphics::createSurface() {
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auto window = Module::getInstance<love::window::Window>(M_WINDOW);
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const void* handle = window->getHandle();
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if (SDL_Vulkan_CreateSurface((SDL_Window*)handle, instance, &surface) != SDL_TRUE) {
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throw love::Exception("failed to create window surface");
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}
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}
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Graphics::SwapChainSupportDetails Graphics::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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void Graphics::createSwapChain() {
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SwapChainSupportDetails swapChainSupport = querySwapChainSupport(physicalDevice);
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VkSurfaceFormatKHR surfaceFormat = chooseSwapSurfaceFormat(swapChainSupport.formats);
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VkPresentModeKHR presentMode = chooseSwapPresentMode(swapChainSupport.presentModes);
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VkExtent2D extent = chooseSwapExtent(swapChainSupport.capabilities);
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uint32_t imageCount = swapChainSupport.capabilities.minImageCount + 1;
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if (swapChainSupport.capabilities.maxImageCount > 0 && imageCount > swapChainSupport.capabilities.maxImageCount) {
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imageCount = swapChainSupport.capabilities.maxImageCount;
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}
|
||||
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VkSwapchainCreateInfoKHR createInfo{};
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createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
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||||
createInfo.surface = surface;
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||||
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||||
createInfo.minImageCount = imageCount;
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createInfo.imageFormat = surfaceFormat.format;
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||||
createInfo.imageColorSpace = surfaceFormat.colorSpace;
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||||
createInfo.imageExtent = extent;
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createInfo.imageArrayLayers = 1;
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createInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
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||||
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QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
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uint32_t queueFamilyIndices[] = { indices.graphicsFamily.value(), indices.presentFamily.value() };
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||||
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||||
if (indices.graphicsFamily != indices.presentFamily) {
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||||
createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
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||||
createInfo.queueFamilyIndexCount = 2;
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||||
createInfo.pQueueFamilyIndices = queueFamilyIndices;
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||||
}
|
||||
else {
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||||
createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
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||||
createInfo.queueFamilyIndexCount = 0;
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||||
createInfo.pQueueFamilyIndices = nullptr;
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||||
}
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||||
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||||
createInfo.preTransform = swapChainSupport.capabilities.currentTransform;
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||||
createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
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||||
createInfo.presentMode = presentMode;
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||||
createInfo.clipped = VK_TRUE;
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createInfo.oldSwapchain = VK_NULL_HANDLE;
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||||
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||||
if (vkCreateSwapchainKHR(device, &createInfo, nullptr, &swapChain) != VK_SUCCESS) {
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||||
throw love::Exception("failed to create swap chain");
|
||||
}
|
||||
|
||||
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
|
||||
swapChainImages.resize(imageCount);
|
||||
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
|
||||
|
||||
swapChainImageFormat = surfaceFormat.format;
|
||||
swapChainExtent = extent;
|
||||
}
|
||||
|
||||
VkSurfaceFormatKHR Graphics::chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR>& availableFormats) {
|
||||
for (const auto& availableFormat : availableFormats) {
|
||||
if (availableFormat.format == VK_FORMAT_B8G8R8A8_SRGB && availableFormat.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) {
|
||||
return availableFormat;
|
||||
}
|
||||
}
|
||||
|
||||
return availableFormats[0];
|
||||
}
|
||||
|
||||
VkPresentModeKHR Graphics::chooseSwapPresentMode(const std::vector<VkPresentModeKHR>& availablePresentModes) {
|
||||
// needed ?
|
||||
for (const auto& availablePresentMode : availablePresentModes) {
|
||||
if (availablePresentMode == VK_PRESENT_MODE_MAILBOX_KHR) {
|
||||
return availablePresentMode;
|
||||
}
|
||||
}
|
||||
|
||||
return VK_PRESENT_MODE_FIFO_KHR;
|
||||
}
|
||||
|
||||
VkExtent2D Graphics::chooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities) {
|
||||
if (capabilities.currentExtent.width != UINT32_MAX) {
|
||||
return capabilities.currentExtent;
|
||||
}
|
||||
else {
|
||||
auto window = Module::getInstance<love::window::Window>(M_WINDOW);
|
||||
const void* handle = window->getHandle();
|
||||
|
||||
int width, height;
|
||||
// is this the equivalent of glfwGetFramebufferSize ?
|
||||
SDL_Vulkan_GetDrawableSize((SDL_Window*)handle, &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 Graphics::createImageViews() {
|
||||
swapChainImageViews.resize(swapChainImages.size());
|
||||
|
||||
for (size_t i = 0; i < swapChainImages.size(); i++) {
|
||||
VkImageViewCreateInfo createInfo{};
|
||||
createInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
|
||||
createInfo.image = swapChainImages.at(i);
|
||||
createInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
||||
createInfo.format = swapChainImageFormat;
|
||||
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.at(i)) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to create image views");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void Graphics::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;
|
||||
|
||||
VkSubpassDependency dependency{};
|
||||
dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
|
||||
dependency.dstSubpass = 0;
|
||||
dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
|
||||
dependency.srcAccessMask = 0;
|
||||
dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
|
||||
dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
|
||||
|
||||
VkRenderPassCreateInfo renderPassInfo{};
|
||||
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
|
||||
renderPassInfo.attachmentCount = 1;
|
||||
renderPassInfo.pAttachments = &colorAttachment;
|
||||
renderPassInfo.subpassCount = 1;
|
||||
renderPassInfo.pSubpasses = &subpass;
|
||||
renderPassInfo.dependencyCount = 1;
|
||||
renderPassInfo.pDependencies = &dependency;
|
||||
|
||||
if (vkCreateRenderPass(device, &renderPassInfo, nullptr, &renderPass) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to create render pass");
|
||||
}
|
||||
}
|
||||
|
||||
static VkShaderModule createShaderModule(VkDevice device, 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 love::Exception("failed to create shader module");
|
||||
}
|
||||
|
||||
return shaderModule;
|
||||
}
|
||||
|
||||
void Graphics::createGraphicsPipeline() {
|
||||
// love::graphics::vulkan::Shader* shader = dynamic_cast<love::graphics::vulkan::Shader*>(getShader());
|
||||
// auto shaderStages = shader->getShaderStages();
|
||||
|
||||
auto vertShaderCode = readFile("vert.spv");
|
||||
auto fragShaderCode = readFile("frag.spv");
|
||||
|
||||
VkShaderModule vertShaderModule = createShaderModule(device, vertShaderCode);
|
||||
VkShaderModule fragShaderModule = createShaderModule(device, 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 };
|
||||
|
||||
VkPipelineVertexInputStateCreateInfo vertexInputInfo{};
|
||||
vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
|
||||
|
||||
// todo later
|
||||
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; // Optional
|
||||
multisampling.pSampleMask = nullptr; // Optional
|
||||
multisampling.alphaToCoverageEnable = VK_FALSE; // Optional
|
||||
multisampling.alphaToOneEnable = VK_FALSE; // Optional
|
||||
|
||||
VkPipelineColorBlendAttachmentState colorBlendAttachment{};
|
||||
colorBlendAttachment.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
|
||||
colorBlendAttachment.blendEnable = VK_FALSE;
|
||||
|
||||
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.pushConstantRangeCount = 0;
|
||||
|
||||
if (vkCreatePipelineLayout(device, &pipelineLayoutInfo, nullptr, &pipelineLayout) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to create pipeline layout");
|
||||
}
|
||||
|
||||
VkGraphicsPipelineCreateInfo pipelineInfo{};
|
||||
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
|
||||
// pipelineInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
|
||||
// pipelineInfo.pStages = shaderStages.data();
|
||||
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) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to create graphics pipeline");
|
||||
}
|
||||
|
||||
vkDestroyShaderModule(device, vertShaderModule, nullptr);
|
||||
vkDestroyShaderModule(device, fragShaderModule, nullptr);
|
||||
}
|
||||
|
||||
void Graphics::createFramebuffers() {
|
||||
swapChainFramBuffers.resize(swapChainImageViews.size());
|
||||
for (size_t i = 0; i < swapChainImageViews.size(); i++) {
|
||||
VkImageView attachments[] = {
|
||||
swapChainImageViews.at(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, &swapChainFramBuffers.at(i)) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to create framebuffers");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void Graphics::createCommandPool() {
|
||||
QueueFamilyIndices queueFamilyIndices = findQueueFamilies(physicalDevice);
|
||||
|
||||
VkCommandPoolCreateInfo poolInfo{};
|
||||
poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
|
||||
poolInfo.queueFamilyIndex = queueFamilyIndices.graphicsFamily.value();
|
||||
poolInfo.flags = 0;
|
||||
|
||||
if (vkCreateCommandPool(device, &poolInfo, nullptr, &commandPool) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to create command pool");
|
||||
}
|
||||
}
|
||||
|
||||
void Graphics::createCommandBuffers() {
|
||||
commandBuffers.resize(swapChainFramBuffers.size());
|
||||
|
||||
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 love::Exception("failed to allocate command buffers");
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < commandBuffers.size(); i++) {
|
||||
VkCommandBufferBeginInfo beginInfo{};
|
||||
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
|
||||
beginInfo.flags = 0;
|
||||
beginInfo.pInheritanceInfo = nullptr;
|
||||
|
||||
if (vkBeginCommandBuffer(commandBuffers[i], &beginInfo) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to begin recording command buffer");
|
||||
}
|
||||
|
||||
VkRenderPassBeginInfo renderPassInfo{};
|
||||
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
|
||||
renderPassInfo.renderPass = renderPass;
|
||||
renderPassInfo.framebuffer = swapChainFramBuffers.at(i);
|
||||
renderPassInfo.renderArea.offset = { 0, 0 };
|
||||
renderPassInfo.renderArea.extent = swapChainExtent;
|
||||
|
||||
VkClearValue clearColor = { {{0.0f, 0.0f, 0.0f, 1.0f}} };
|
||||
renderPassInfo.clearValueCount = 1;
|
||||
renderPassInfo.pClearValues = &clearColor;
|
||||
|
||||
// this definitely doesn't belong in here, but leaving here for future reference
|
||||
vkCmdBeginRenderPass(commandBuffers[i], &renderPassInfo, VK_SUBPASS_CONTENTS_INLINE);
|
||||
vkCmdBindPipeline(commandBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
|
||||
vkCmdDraw(commandBuffers[i], 3, 1, 0, 0);
|
||||
|
||||
vkCmdEndRenderPass(commandBuffers[i]);
|
||||
if (vkEndCommandBuffer(commandBuffers[i]) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to record command buffer");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void Graphics::createSyncObjects() {
|
||||
imageAvailableSemaphores.resize(MAX_FRAMES_IN_FLIGHT);
|
||||
renderFinishedSemaphores.resize(MAX_FRAMES_IN_FLIGHT);
|
||||
inFlightFences.resize(MAX_FRAMES_IN_FLIGHT);
|
||||
imagesInFlight.resize(swapChainImages.size(), VK_NULL_HANDLE);
|
||||
|
||||
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.at(i)) != VK_SUCCESS ||
|
||||
vkCreateSemaphore(device, &semaphoreInfo, nullptr, &renderFinishedSemaphores.at(i)) != VK_SUCCESS ||
|
||||
vkCreateFence(device, &fenceInfo, nullptr, &inFlightFences.at(i)) != VK_SUCCESS) {
|
||||
throw love::Exception("failed to create synchronization objects for a frame!");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
love::graphics::Graphics* createInstance() {
|
||||
love::graphics::Graphics* instance = nullptr;
|
||||
|
||||
try {
|
||||
instance = new Graphics();
|
||||
}
|
||||
catch (love::Exception& e) {
|
||||
printf("Cannot create Vulkan renderer: %s\n", e.what());
|
||||
}
|
||||
|
||||
return instance;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user