Nigel/LearnVulkan
1
0
Fork 0
Code Releases Activity

2 Frames in flight

Browse Source
This commit is contained in:
Nigel Barink
2023-05-14 16:47:37 +02:00
parent 7c96a274f9
commit baf3cddd81
1 changed files with 40 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
Hello_triangle/main.cpp
View File

@@ -17,9 +17,9 @@
#include <set>
#include <fstream>
const uint32_t WIDTH = 800;
const uint32_t HEIGHT = 600;
const int MAX_FRAMES_IN_FLIGHT = 2;
const std::vector<const char*> validationLayers ={
"VK_LAYER_KHRONOS_validation"
@@ -65,12 +65,12 @@ const std::vector<const char*> deviceExtensions = {
VkPipeline graphicsPipeline;
std::vector<VkFramebuffer> swapchainFrameBuffers;
VkCommandPool commandPool;
VkCommandBuffer commandBuffer;
VkSemaphore imageAvailableSemaphore;
VkSemaphore renderFinishedSemaphore;
VkFence inFlightFence;
std::vector<VkCommandBuffer> commandBuffers;
std::vector<VkSemaphore> imageAvailableSemaphores;
std::vector<VkSemaphore> renderFinishedSemaphores;
std::vector<VkFence> inFlightFences;
uint32_t currentFrame = 0;
struct SwapChainSupportDetails {
VkSurfaceCapabilitiesKHR capabilities;
@@ -100,11 +100,15 @@ const std::vector<const char*> deviceExtensions = {
createGraphicsPipeline();
createFramebuffers();
createCommandPool();
createCommandBuffer();
createCommandBuffers();
createSyncObjects();
}
void 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;
@@ -112,11 +116,16 @@ const std::vector<const char*> deviceExtensions = {
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
if (vkCreateSemaphore(device, &semaphoreInfo, nullptr, &imageAvailableSemaphore) != VK_SUCCESS ||
vkCreateSemaphore(device, &semaphoreInfo, nullptr, &renderFinishedSemaphore) != VK_SUCCESS ||
vkCreateFence(device, &fenceInfo, nullptr, &inFlightFence) != VK_SUCCESS) {
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("failed to create semaphores!");
}
}
@@ -169,14 +178,16 @@ const std::vector<const char*> deviceExtensions = {
}
void createCommandBuffer() {
void 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 = 1;
allocInfo.commandBufferCount = (uint32_t) commandBuffers.size();
if (vkAllocateCommandBuffers(device, &allocInfo, &commandBuffer) != VK_SUCCESS) {
if (vkAllocateCommandBuffers(device, &allocInfo, commandBuffers.data()) != VK_SUCCESS) {
throw std::runtime_error("failed to allocate command buffers!");
}
}
@@ -559,7 +570,6 @@ const std::vector<const char*> deviceExtensions = {
return buffer;
}
void pickPhysicalDevice() {
uint32_t deviceCount = 0;
vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr);
@@ -675,7 +685,6 @@ const std::vector<const char*> deviceExtensions = {
return details;
}
VkResult CreateDebugUtilsMessengerEXT(VkInstance instance, const VkDebugUtilsMessengerCreateInfoEXT* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkDebugUtilsMessengerEXT* pDebugMessenger) {
auto func = (PFN_vkCreateDebugUtilsMessengerEXT)vkGetInstanceProcAddr(instance, "vkCreateDebugUtilsMessengerEXT");
if (func != nullptr) {
@@ -739,7 +748,6 @@ const std::vector<const char*> deviceExtensions = {
return requiredExtensions.empty();
}
std::vector<const char*> getRequiredExtensions() {
uint32_t glfwExtensionCount = 0;
const char** glfwExtensions;
@@ -857,34 +865,33 @@ const std::vector<const char*> deviceExtensions = {
vkDeviceWaitIdle(device);
}
void drawFrame() {
vkWaitForFences(device, 1, &inFlightFence, VK_TRUE, UINT64_MAX);
vkResetFences(device, 1, &inFlightFence);
vkWaitForFences(device, 1, &inFlightFences[currentFrame], VK_TRUE, UINT64_MAX);
vkResetFences(device, 1, &inFlightFences[currentFrame]);
uint32_t imageIndex;
vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphore, VK_NULL_HANDLE, &imageIndex);
vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores[currentFrame], VK_NULL_HANDLE, &imageIndex);
vkResetCommandBuffer(commandBuffer, 0);
recordCommandBuffer(commandBuffer, imageIndex);
vkResetCommandBuffer(commandBuffers[currentFrame], 0);
recordCommandBuffer(commandBuffers[currentFrame], imageIndex);
VkSubmitInfo submitInfo{};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
VkSemaphore waitSemaphores[] = { imageAvailableSemaphore };
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 = &commandBuffer;
submitInfo.pCommandBuffers = &commandBuffers[currentFrame];
VkSemaphore signalSemaphore[] = { renderFinishedSemaphore };
VkSemaphore signalSemaphore[] = { renderFinishedSemaphores[currentFrame]};
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = signalSemaphore;
if (vkQueueSubmit(graphicsQueue,1, &submitInfo, inFlightFence) != VK_SUCCESS) {
if (vkQueueSubmit(graphicsQueue,1, &submitInfo, inFlightFences[currentFrame]) != VK_SUCCESS) {
throw std::runtime_error("failed to submit draw command buffer");
}
@@ -901,17 +908,18 @@ const std::vector<const char*> deviceExtensions = {
vkQueuePresentKHR(presentQueue, &presentInfo);
currentFrame = (currentFrame + 1) % MAX_FRAMES_IN_FLIGHT;
}
void cleanup(){
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);
vkDestroySemaphore(device, imageAvailableSemaphore, nullptr);
vkDestroySemaphore(device, renderFinishedSemaphore, nullptr);
vkDestroyFence(device, inFlightFence, nullptr);
}
vkDestroyCommandPool(device, commandPool, nullptr);
@@ -951,7 +959,6 @@ const std::vector<const char*> deviceExtensions = {
createInfo.pfnUserCallback = debugCallback;
}
void DestroyDebugUtilsMessengerEXT(VkInstance instance, VkDebugUtilsMessengerEXT debugMessenger, const VkAllocationCallbacks* pAllocator) {
auto func = (PFN_vkDestroyDebugUtilsMessengerEXT) vkGetInstanceProcAddr(instance, "vkDestroyDebugUtilsMessengerEXT");
if (func != nullptr) {