清理cpp 内容, 只保留主文件。CMakeLists.txt 采用根目录的。

This commit is contained in:
xsl
2025-10-16 14:32:16 +08:00
parent 550f8bb868
commit 96ac7b4b0d
9 changed files with 930 additions and 0 deletions
+31
View File
@@ -0,0 +1,31 @@
cmake_minimum_required(VERSION 3.22.1)
project("sample")
if(CMAKE_SYSTEM_NAME STREQUAL "Android")
message(STATUS "Building for Android")
add_library(sample SHARED
app/src/main/cpp/main.cpp
app/src/main/cpp/AndroidOut.cpp
)
find_package(game-activity REQUIRED CONFIG)
set(CMAKE_SHARED_LINKER_FLAGS
"${CMAKE_SHARED_LINKER_FLAGS} -u Java_com_google_androidgamesdk_GameActivity_initializeNativeCode")
target_link_libraries(sample
game-activity::game-activity_static
android
log)
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Windows" OR WIN32)
message(STATUS "Building for Windows")
endif()
+3
View File
@@ -0,0 +1,3 @@
D:\VulkanSDK\1.4.304.0\Bin\glslc.exe shaders\simple_shader.vert -o shaders\simple_shader.vert.spv
D:\VulkanSDK\1.4.304.0\Bin\glslc.exe shaders\simple_shader.frag -o shaders\simple_shader.frag.spv
pause
+7
View File
@@ -0,0 +1,7 @@
#version 450
layout(location = 0) in vec3 fragColor;
layout(location = 0) out vec4 outColor;
void main() {
outColor = vec4(fragColor, 1.0);
}
Binary file not shown.
+19
View File
@@ -0,0 +1,19 @@
#version 450
layout(location = 0) out vec3 fragColor;
vec2 positions[3] = vec2[](
vec2(0.0, -0.5),
vec2(0.5, 0.5),
vec2(-0.5, 0.5)
);
vec3 colors[3] = vec3[](
vec3(1.0, 0.0, 0.0),
vec3(0.0, 1.0, 0.0),
vec3(0.0, 0.0, 1.0)
);
void main() {
gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
fragColor = colors[gl_VertexIndex];
}
Binary file not shown.
+735
View File
@@ -0,0 +1,735 @@
#include "HelloTriangleApplication.h"
bool enableValidationLayers = true;
void HelloTriangleApplication::createInstance()
{
if (enableValidationLayers && !checkValidationLayerSupport()) {
throw std::runtime_error("validation layers requested, but not available!");
}
VkApplicationInfo appInfo{};
appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
appInfo.pApplicationName = "Hello Triangle";
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;
// 获取 GLFW 所需的扩展
uint32_t glfwExtensionCount = 0;
const char** glfwExtensions;
glfwExtensions = glfwGetRequiredInstanceExtensions(&glfwExtensionCount);
// 添加调试扩展
std::vector<const char*> extensions(glfwExtensions, glfwExtensions + glfwExtensionCount);
if (enableValidationLayers) {
extensions.push_back(VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
}
createInfo.enabledExtensionCount = static_cast<uint32_t>(extensions.size());
createInfo.ppEnabledExtensionNames = extensions.data();
if (enableValidationLayers) {
createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
createInfo.ppEnabledLayerNames = validationLayers.data();
}
else {
createInfo.enabledLayerCount = 0;
}
if (vkCreateInstance(&createInfo, nullptr, &instance) != VK_SUCCESS) {
throw std::runtime_error("failed to create instance!");
}
}
void HelloTriangleApplication::initWindow()
{
glfwInit();
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
window = glfwCreateWindow(kWidth, kHeight, "Vulkan", nullptr, nullptr);
}
void HelloTriangleApplication::run()
{
initWindow();
initVulkan();
mainLoop();
cleanup();
}
void HelloTriangleApplication::createSurface() {
if (glfwCreateWindowSurface(instance, window, nullptr, &surface) != VK_SUCCESS) {
throw std::runtime_error("failed to create window surface!");
}
}
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 func(instance, pCreateInfo, pAllocator, pDebugMessenger);
}
else {
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
}
void HelloTriangleApplication::setupDebugMessenger() {
if (!enableValidationLayers)
return;
VkDebugUtilsMessengerCreateInfoEXT 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;
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;
createInfo.pUserData = nullptr; // Optional
if (CreateDebugUtilsMessengerEXT(instance, &createInfo, nullptr, &debugMessenger) != VK_SUCCESS) {
throw std::runtime_error("failed to set up debug messenger!");
}
}
void HelloTriangleApplication::initVulkan()
{
createInstance(); // 创建 Vulkan 实例
setupDebugMessenger(); // 在这里调用
createSurface(); // 创建窗口表面
pickPhysicalDevice(); // 选择物理设备
createLogicalDevice(); // 创建逻辑设备
createSwapChain(); // 创建交换链
createImageViews(); // 创建交换链图像视图
createRenderPass(); // 创建渲染流程
createPipelineLayout(); // 在这里调用
createGraphicsPipeline(); // 创建图形管线
createFramebuffers(); // 创建帧缓冲区
createCommandPool(); // 创建命令池
createCommandBuffer(); // 创建命令缓冲区
recordCommandBuffer(commandBuffer, 0); // 录制命令缓冲区(初始化时)
createSyncObjects(); // 创建同步对象
}
void HelloTriangleApplication::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[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[i]) != VK_SUCCESS) {
throw std::runtime_error("failed to create image views!");
}
}
}
void HelloTriangleApplication::createFramebuffers() {
swapChainFramebuffers.resize(swapChainImageViews.size());
for (size_t i = 0; i < swapChainImageViews.size(); i++) {
VkImageView attachments[] = {
swapChainImageViews[i]
};
VkFramebufferCreateInfo framebufferInfo{};
framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
framebufferInfo.renderPass = renderPass;
framebufferInfo.attachmentCount = 1;
framebufferInfo.pAttachments = attachments;
framebufferInfo.width = swapChainExtent.width;
framebufferInfo.height = swapChainExtent.height;
framebufferInfo.layers = 1;
if (vkCreateFramebuffer(device, &framebufferInfo, nullptr, &swapChainFramebuffers[i]) != VK_SUCCESS) {
throw std::runtime_error("failed to create framebuffer!");
}
}
}
void HelloTriangleApplication::createCommandPool() {
QueueFamilyIndices queueFamilyIndices = findQueueFamilies(physicalDevice);
VkCommandPoolCreateInfo poolInfo{};
poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
poolInfo.queueFamilyIndex = queueFamilyIndices.graphicsFamily.value();
poolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT; // 添加标志
if (vkCreateCommandPool(device, &poolInfo, nullptr, &commandPool) != VK_SUCCESS) {
throw std::runtime_error("failed to create command pool!");
}
}
void HelloTriangleApplication::createCommandBuffer() {
VkCommandBufferAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.commandPool = commandPool;
allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandBufferCount = 1;
if (vkAllocateCommandBuffers(device, &allocInfo, &commandBuffer) != VK_SUCCESS) {
throw std::runtime_error("failed to allocate command buffers!");
}
}
void HelloTriangleApplication::mainLoop()
{
while (!glfwWindowShouldClose(window))
{
glfwPollEvents();
drawFrame(); // 在这里调用
}
vkDeviceWaitIdle(device); // 等待设备空闲
}
void HelloTriangleApplication::pickPhysicalDevice() {
uint32_t deviceCount = 0;
vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr);
if (deviceCount == 0) {
throw std::runtime_error("failed to find GPUs with Vulkan support!");
}
std::vector<VkPhysicalDevice> devices(deviceCount);
vkEnumeratePhysicalDevices(instance, &deviceCount, devices.data());
for (const auto& device : devices) {
if (isDeviceSuitable(device)) {
physicalDevice = device;
break;
}
}
if (physicalDevice == VK_NULL_HANDLE) {
throw std::runtime_error("failed to find a suitable GPU!");
}
}
QueueFamilyIndices HelloTriangleApplication::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 auto& queueFamily : queueFamilies) {
if (queueFamily.queueFlags & VK_QUEUE_GRAPHICS_BIT) {
indices.graphicsFamily = i;
}
VkBool32 presentSupport = false;
vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &presentSupport);
if (presentSupport) {
indices.presentFamily = i;
}
if (indices.isComplete()) {
break;
}
i++;
}
return indices;
}
bool HelloTriangleApplication::checkDeviceExtensionSupport(VkPhysicalDevice device) {
// 获取设备支持的扩展数量
uint32_t extensionCount;
vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, nullptr);
// 获取设备支持的扩展列表
std::vector<VkExtensionProperties> availableExtensions(extensionCount);
vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, availableExtensions.data());
// 定义需要的扩展
const std::vector<const char*> requiredExtensions = {
VK_KHR_SWAPCHAIN_EXTENSION_NAME
};
// 检查所有需要的扩展是否都支持
for (const char* requiredExtension : requiredExtensions) {
bool extensionFound = false;
for (const auto& extension : availableExtensions) {
if (strcmp(requiredExtension, extension.extensionName) == 0) {
extensionFound = true;
break;
}
}
if (!extensionFound) {
return false; // 如果有一个扩展不支持,返回 false
}
}
return true; // 所有扩展都支持
}
bool HelloTriangleApplication::checkSwapChainSupport(VkPhysicalDevice device) {
uint32_t formatCount;
vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, nullptr);
uint32_t presentModeCount;
vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, nullptr);
return formatCount > 0 && presentModeCount > 0;
}
bool HelloTriangleApplication::isDeviceSuitable(VkPhysicalDevice device) {
QueueFamilyIndices indices = findQueueFamilies(device);
bool extensionsSupported = checkDeviceExtensionSupport(device);
bool swapChainAdequate = false;
if (extensionsSupported) {
swapChainAdequate = checkSwapChainSupport(device);
}
return indices.isComplete() && extensionsSupported && swapChainAdequate;
}
void HelloTriangleApplication::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{};
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;
// 启用交换链扩展
const std::vector<const char*> deviceExtensions = {
VK_KHR_SWAPCHAIN_EXTENSION_NAME
};
createInfo.enabledExtensionCount = static_cast<uint32_t>(deviceExtensions.size());
createInfo.ppEnabledExtensionNames = deviceExtensions.data();
if (vkCreateDevice(physicalDevice, &createInfo, nullptr, &device) != VK_SUCCESS) {
throw std::runtime_error("failed to create logical device!");
}
vkGetDeviceQueue(device, indices.graphicsFamily.value(), 0, &graphicsQueue);
vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
}
void HelloTriangleApplication::createSwapChain() {
// 选择交换链格式、颜色空间和分辨率
VkSurfaceFormatKHR surfaceFormat = { VK_FORMAT_B8G8R8A8_SRGB, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR };
VkPresentModeKHR presentMode = VK_PRESENT_MODE_FIFO_KHR;
VkExtent2D extent = { kWidth, kHeight };
// 创建交换链
VkSwapchainCreateInfoKHR createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
createInfo.surface = surface;
createInfo.minImageCount = 2; // 双缓冲
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 queueFamilyIndices[] = { indices.graphicsFamily.value(), indices.presentFamily.value() };
if (indices.graphicsFamily != indices.presentFamily) {
createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
createInfo.queueFamilyIndexCount = 2;
createInfo.pQueueFamilyIndices = queueFamilyIndices;
}
else {
createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
createInfo.queueFamilyIndexCount = 0; // Optional
createInfo.pQueueFamilyIndices = nullptr; // Optional
}
createInfo.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
createInfo.presentMode = presentMode;
createInfo.clipped = VK_TRUE;
createInfo.oldSwapchain = VK_NULL_HANDLE;
if (vkCreateSwapchainKHR(device, &createInfo, nullptr, &swapChain) != VK_SUCCESS) {
throw std::runtime_error("failed to create swap chain!");
}
// 获取交换链图像
uint32_t imageCount;
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
swapChainImages.resize(imageCount);
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
swapChainImageFormat = surfaceFormat.format;
swapChainExtent = extent;
}
void HelloTriangleApplication::createPipelineLayout() {
VkPipelineLayoutCreateInfo pipelineLayoutInfo{};
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutInfo.setLayoutCount = 0; // 可选:描述符集布局
pipelineLayoutInfo.pSetLayouts = nullptr; // 可选:描述符集布局
pipelineLayoutInfo.pushConstantRangeCount = 0; // 可选:推送常量范围
pipelineLayoutInfo.pPushConstantRanges = nullptr; // 可选:推送常量范围
if (vkCreatePipelineLayout(device, &pipelineLayoutInfo, nullptr, &pipelineLayout) != VK_SUCCESS) {
throw std::runtime_error("failed to create pipeline layout!");
}
}
void HelloTriangleApplication::createGraphicsPipeline() {
// 顶点着色器和片段着色器
auto vertShaderCode = readFile("D:/Graphics/vulkan_demo/shaders/simple_shader.vert.spv");
auto fragShaderCode = readFile("D:/Graphics/vulkan_demo/shaders/simple_shader.frag.spv");
// 创建着色器模块
VkShaderModule vertShaderModule = createShaderModule(vertShaderCode);
VkShaderModule fragShaderModule = createShaderModule(fragShaderCode);
// 定义着色器阶段
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 };
// 顶点输入状态
VkPipelineVertexInputStateCreateInfo vertexInputInfo{};
vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertexInputInfo.vertexBindingDescriptionCount = 0;
vertexInputInfo.pVertexBindingDescriptions = nullptr;
vertexInputInfo.vertexAttributeDescriptionCount = 0;
vertexInputInfo.pVertexAttributeDescriptions = nullptr;
// 输入组装状态
VkPipelineInputAssemblyStateCreateInfo inputAssembly{};
inputAssembly.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
inputAssembly.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
inputAssembly.primitiveRestartEnable = VK_FALSE;
// 视口状态
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;
// 光栅化状态
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;
// 多重采样状态
VkPipelineMultisampleStateCreateInfo multisampling{};
multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
multisampling.sampleShadingEnable = VK_FALSE;
multisampling.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
// 颜色混合状态
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.attachmentCount = 1;
colorBlending.pAttachments = &colorBlendAttachment;
// 创建图形管线
VkGraphicsPipelineCreateInfo pipelineInfo{};
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineInfo.stageCount = 2;
pipelineInfo.pStages = shaderStages;
pipelineInfo.pVertexInputState = &vertexInputInfo;
pipelineInfo.pInputAssemblyState = &inputAssembly;
pipelineInfo.pViewportState = &viewportState;
pipelineInfo.pRasterizationState = &rasterizer;
pipelineInfo.pMultisampleState = &multisampling;
pipelineInfo.pColorBlendState = &colorBlending;
pipelineInfo.layout = pipelineLayout;
pipelineInfo.renderPass = renderPass;
pipelineInfo.subpass = 0;
if (vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &pipelineInfo, nullptr, &graphicsPipeline) != VK_SUCCESS) {
throw std::runtime_error("failed to create graphics pipeline!");
}
// 销毁着色器模块
vkDestroyShaderModule(device, fragShaderModule, nullptr);
vkDestroyShaderModule(device, vertShaderModule, nullptr);
}
void HelloTriangleApplication::createRenderPass() {
VkAttachmentDescription colorAttachment{};
colorAttachment.format = swapChainImageFormat;
colorAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
colorAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
colorAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
colorAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
colorAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
VkAttachmentReference colorAttachmentRef{};
colorAttachmentRef.attachment = 0;
colorAttachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkSubpassDescription subpass{};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &colorAttachmentRef;
VkRenderPassCreateInfo renderPassInfo{};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.attachmentCount = 1;
renderPassInfo.pAttachments = &colorAttachment;
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpass;
if (vkCreateRenderPass(device, &renderPassInfo, nullptr, &renderPass) != VK_SUCCESS) {
throw std::runtime_error("failed to create render pass!");
}
}
bool HelloTriangleApplication::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;
}
void HelloTriangleApplication::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("failed to begin recording command buffer!");
}
// 开始渲染流程
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;
VkClearValue clearColor = { {{0.0f, 0.0f, 0.0f, 1.0f}} };
renderPassInfo.clearValueCount = 1;
renderPassInfo.pClearValues = &clearColor;
vkCmdBeginRenderPass(commandBuffer, &renderPassInfo, VK_SUBPASS_CONTENTS_INLINE);
// 绑定图形管线
vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
// 绘制三角形
vkCmdDraw(commandBuffer, 3, 1, 0, 0);
// 结束渲染流程
vkCmdEndRenderPass(commandBuffer);
if (vkEndCommandBuffer(commandBuffer) != VK_SUCCESS) {
throw std::runtime_error("failed to record command buffer!");
}
}
void HelloTriangleApplication::createSyncObjects() {
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; // 初始状态为已触发
if (vkCreateSemaphore(device, &semaphoreInfo, nullptr, &imageAvailableSemaphore) != VK_SUCCESS ||
vkCreateSemaphore(device, &semaphoreInfo, nullptr, &renderFinishedSemaphore) != VK_SUCCESS ||
vkCreateFence(device, &fenceInfo, nullptr, &inFlightFence) != VK_SUCCESS) {
throw std::runtime_error("failed to create synchronization objects!");
}
}
void HelloTriangleApplication::drawFrame() {
vkWaitForFences(device, 1, &inFlightFence, VK_TRUE, UINT64_MAX);
vkResetFences(device, 1, &inFlightFence);
uint32_t imageIndex;
vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphore, VK_NULL_HANDLE, &imageIndex);
vkResetCommandBuffer(commandBuffer, 0);
recordCommandBuffer(commandBuffer, imageIndex); // 重新录制命令缓冲区
VkSubmitInfo submitInfo{};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
VkSemaphore waitSemaphores[] = { imageAvailableSemaphore };
VkPipelineStageFlags waitStages[] = { VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT };
submitInfo.waitSemaphoreCount = 1;
submitInfo.pWaitSemaphores = waitSemaphores;
submitInfo.pWaitDstStageMask = waitStages;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffer;
VkSemaphore signalSemaphores[] = { renderFinishedSemaphore };
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = signalSemaphores;
if (vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFence) != VK_SUCCESS) {
throw std::runtime_error("failed to submit draw command buffer!");
}
VkPresentInfoKHR presentInfo{};
presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
presentInfo.waitSemaphoreCount = 1;
presentInfo.pWaitSemaphores = signalSemaphores;
VkSwapchainKHR swapChains[] = { swapChain };
presentInfo.swapchainCount = 1;
presentInfo.pSwapchains = swapChains;
presentInfo.pImageIndices = &imageIndex;
vkQueuePresentKHR(presentQueue, &presentInfo);
}
void DestroyDebugUtilsMessengerEXT(VkInstance instance, VkDebugUtilsMessengerEXT debugMessenger, const VkAllocationCallbacks* pAllocator) {
auto func = (PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr(instance, "vkDestroyDebugUtilsMessengerEXT");
if (func != nullptr) {
func(instance, debugMessenger, pAllocator);
}
}
void HelloTriangleApplication::cleanup() {
if (enableValidationLayers) {
DestroyDebugUtilsMessengerEXT(instance, debugMessenger, nullptr);
}
// 销毁命令缓冲区
vkFreeCommandBuffers(device, commandPool, 1, &commandBuffer);
// 销毁同步对象
vkDestroySemaphore(device, imageAvailableSemaphore, nullptr);
vkDestroySemaphore(device, renderFinishedSemaphore, nullptr);
vkDestroyFence(device, inFlightFence, nullptr);
// 销毁帧缓冲区
for (auto framebuffer : swapChainFramebuffers) {
vkDestroyFramebuffer(device, framebuffer, nullptr);
}
// 销毁图形管线
vkDestroyPipeline(device, graphicsPipeline, nullptr);
// 销毁管线布局
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
// 销毁渲染流程
vkDestroyRenderPass(device, renderPass, nullptr);
// 销毁图像视图
for (auto imageView : swapChainImageViews) {
vkDestroyImageView(device, imageView, nullptr);
}
// 销毁交换链
vkDestroySwapchainKHR(device, swapChain, nullptr);
// 销毁命令池
vkDestroyCommandPool(device, commandPool, nullptr);
// 销毁逻辑设备
vkDestroyDevice(device, nullptr);
// 销毁窗口表面
vkDestroySurfaceKHR(instance, surface, nullptr);
// 销毁 Vulkan 实例
vkDestroyInstance(instance, nullptr);
// 销毁 GLFW 窗口
glfwDestroyWindow(window);
// 终止 GLFW
glfwTerminate();
}
+118
View File
@@ -0,0 +1,118 @@
#pragma once
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
#include <fstream>
#include <iostream>
#include <iostream>
#include <stdexcept>
#include <cstdlib>
#include <vector>
#include <optional>
#include <set>
struct QueueFamilyIndices {
std::optional<uint32_t> graphicsFamily;
std::optional<uint32_t> presentFamily;
bool isComplete() {
return graphicsFamily.has_value() && presentFamily.has_value();
}
};
class HelloTriangleApplication
{
private:
std::vector<char> readFile(const std::string &enginePath)
{
std::ifstream file{enginePath, std::ios::ate | std::ios::binary};
if (!file.is_open())
{
throw std::runtime_error("failed to open file: " + enginePath);
}
size_t fileSize = static_cast<size_t>(file.tellg());
std::vector<char> buffer(fileSize);
file.seekg(0);
file.read(buffer.data(), fileSize);
file.close();
return buffer;
}
VkShaderModule 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("failed to create shader module!");
}
return shaderModule;
}
public:
void run();
private:
GLFWwindow *window;
VkInstance instance;
void initWindow();
void createSurface();
void initVulkan();
void mainLoop();
void cleanup();
void createInstance();
void createImageViews();
void createFramebuffers();
void createCommandPool();
void createCommandBuffer();
void setupDebugMessenger();
void pickPhysicalDevice();
QueueFamilyIndices findQueueFamilies(VkPhysicalDevice device);
bool isDeviceSuitable(VkPhysicalDevice device);
bool checkSwapChainSupport(VkPhysicalDevice device);
bool checkDeviceExtensionSupport(VkPhysicalDevice device);
bool checkValidationLayerSupport();
void createLogicalDevice();
void createSwapChain();
void createPipelineLayout();
void createGraphicsPipeline();
void createRenderPass();
void recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t imageIndex);
void createSyncObjects();
void drawFrame();
private:
VkPhysicalDevice physicalDevice = VK_NULL_HANDLE; // 物理设备
VkDevice device; // 逻辑设备
VkQueue graphicsQueue; // 图形队列
VkSurfaceKHR surface; // 窗口表面
VkSwapchainKHR swapChain; // 交换链
std::vector<VkImage> swapChainImages; // 交换链图像
VkFormat swapChainImageFormat; // 交换链图像格式
VkExtent2D swapChainExtent; // 交换链图像分辨率
std::vector<VkImageView> swapChainImageViews; // 交换链图像视图
VkRenderPass renderPass; // 渲染流程
VkPipelineLayout pipelineLayout; // 管线布局
VkPipeline graphicsPipeline; // 图形管线
std::vector<VkFramebuffer> swapChainFramebuffers; // 帧缓冲区
VkCommandPool commandPool; // 命令池
VkCommandBuffer commandBuffer; // 命令缓冲区
VkSemaphore imageAvailableSemaphore; // 图像可用信号量
VkSemaphore renderFinishedSemaphore; // 渲染完成信号量
VkFence inFlightFence; // 同步栅栏
VkQueue presentQueue; // 呈现队列
VkDebugUtilsMessengerEXT debugMessenger;
const std::vector<const char*> validationLayers = {
"VK_LAYER_KHRONOS_validation"
};
const int kWidth = 800;
const int kHeight = 600;
};
+17
View File
@@ -0,0 +1,17 @@
#include "HelloTriangleApplication.h"
int main() {
HelloTriangleApplication app;
try {
app.run();
} catch (const std::exception& e) {
std::cerr << e.what() << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}