完成swapChain创建
parent
079bd0f81e
commit
9f608cda60
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@ -11,6 +11,10 @@ const std::vector<const char*> validationLayers = {
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};
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const std::vector<const char*> swapchainExtensions = {
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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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@ -103,6 +107,8 @@ void HelloTriangleApplication::initVulkan() {
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pickPhysicalDevice();
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createLogicalDevice();
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createSwapChain();
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}
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@ -120,14 +126,16 @@ void HelloTriangleApplication::mainLoop(GLFWwindow* window){
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void HelloTriangleApplication::cleanup(GLFWwindow* window) {
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vkDestroyDevice(device, nullptr);
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vkDestroySwapchainKHR(device, swapChain, nullptr);
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vkDestroySurfaceKHR(instance, surface, nullptr);
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if (enableValidationLayers)
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{
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DestroyDebugUtilsMessengerEXT(instance, debugMessenger, nullptr);
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}
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vkDestroySurfaceKHR(instance, surface, nullptr);
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vkDestroyDevice(device, nullptr);
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vkDestroyInstance(instance, nullptr);
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@ -222,6 +230,25 @@ void HelloTriangleApplication::createSurface()
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}
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}
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bool HelloTriangleApplication::checkDeviceExtensionSupport(VkPhysicalDevice device)
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{
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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(swapchainExtensions.begin(), swapchainExtensions.end());
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for (const auto& extension : availableExtensions)
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{
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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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void HelloTriangleApplication::pickPhysicalDevice()
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{
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uint32_t deviceCount = 0;
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@ -255,7 +282,16 @@ bool HelloTriangleApplication::isDeviceSuitable(VkPhysicalDevice device)
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{
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QueueFamilyIndices indices = findQueueFamilies(device);
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return indices.isComplete();
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bool extensionsSupported = checkDeviceExtensionSupport(device);
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bool swapChainAdequate = false;
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if (extensionsSupported)
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{
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SwapChainSupportDetails swapChainSupport = querySwapChainSupport(device);
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swapChainAdequate = !swapChainSupport.formats.empty() && !swapChainSupport.presentModes.empty();
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}
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return indices.isComplete() && extensionsSupported && swapChainAdequate;
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}
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HelloTriangleApplication::QueueFamilyIndices HelloTriangleApplication::findQueueFamilies(VkPhysicalDevice device)
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@ -321,14 +357,16 @@ void HelloTriangleApplication::createLogicalDevice()
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float queuePriority = 1.0f;
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queueCreateInfo.pQueuePriorities = &queuePriority;
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*/
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VkPhysicalDeviceFeatures deviceFeatures{};
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VkDeviceCreateInfo deviceCreateInfo{};
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deviceCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
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deviceCreateInfo.queueCreateInfoCount = static_cast<uint32_t>(queueCreateInfos.size());
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deviceCreateInfo.pQueueCreateInfos = queueCreateInfos.data();
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deviceCreateInfo.pEnabledFeatures = &deviceFeatures;
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deviceCreateInfo.enabledExtensionCount = static_cast<uint32_t>(swapchainExtensions.size());
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deviceCreateInfo.ppEnabledExtensionNames = swapchainExtensions.data();
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//新版本vulkan已不对实例和设备特定验证层做区分，此处保证兼容性
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deviceCreateInfo.enabledExtensionCount = 0;
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if (enableValidationLayers)
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{
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deviceCreateInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
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@ -348,6 +386,143 @@ void HelloTriangleApplication::createLogicalDevice()
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vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
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}
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HelloTriangleApplication::SwapChainSupportDetails HelloTriangleApplication::querySwapChainSupport(VkPhysicalDevice device)
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{
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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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{
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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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{
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details.presentModes.resize(presentModeCount);
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vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, details.presentModes.data());
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}
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return details;
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}
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VkSurfaceFormatKHR HelloTriangleApplication::chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR>& availableFormats)
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{
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for (const auto& availableFormat : availableFormats) {
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if (availableFormat.format == VK_FORMAT_B8G8R8_SRGB && availableFormat.colorSpace == VK_COLORSPACE_SRGB_NONLINEAR_KHR)
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{
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return availableFormat;
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}
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}
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return availableFormats[0];
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}
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VkPresentModeKHR HelloTriangleApplication::chooseSwapPresentMode(const std::vector<VkPresentModeKHR>& availablePresentModes)
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{
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for (const auto& availablePresentMode : availablePresentModes) {
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if (availablePresentMode == VK_PRESENT_MODE_MAILBOX_KHR)
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{
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return availablePresentMode;
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}
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}
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return VK_PRESENT_MODE_FIFO_KHR;
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}
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VkExtent2D HelloTriangleApplication::chooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities)
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{
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if (capabilities.currentExtent.width != std::numeric_limits<uint32_t>::max())
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{
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return capabilities.currentExtent;
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}
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else
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{
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int width, height;
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glfwGetFramebufferSize(window, &width, &height);
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VkExtent2D actualExtent = {
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static_cast<uint32_t>(width),
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static_cast<uint32_t>(height)
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};
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actualExtent.width = std::clamp(actualExtent.width, capabilities.minImageExtent.width, capabilities.maxImageExtent.width);
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actualExtent.height = std::clamp(actualExtent.height, capabilities.minImageExtent.height, capabilities.maxImageExtent.height);
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return actualExtent;
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}
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}
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void HelloTriangleApplication::createSwapChain()
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{
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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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{
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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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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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QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
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uint32_t queueFamilyIndices[] = { indices.graphicsFamily.value(),indices.presentFamily.value() };
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if (indices.graphicsFamily != indices.presentFamily)
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{
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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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}
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else
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{
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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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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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if (vkCreateSwapchainKHR(device,&createInfo,nullptr,&swapChain) != VK_SUCCESS)
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{
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throw std::runtime_error("failed to create swap chain !");
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}
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vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
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swapChainImages.resize(imageCount);
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vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
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// store swap format and swap extent to member variable
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swapChainImageFormat = surfaceFormat.format;
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swapChainExtent = extent;
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}
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bool HelloTriangleApplication::checkValidationLayerSupport() {
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uint32_t layerCount;
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@ -15,6 +15,11 @@
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#include <cstdlib>
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#include <set>
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#include <cstdint>
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#include <limits>
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#include <algorithm>
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VkResult CreateDebugUtilsMessengerEXT(VkInstance instance, const VkDebugUtilsMessengerCreateInfoEXT* pCreateInfo,const VkAllocationCallbacks* pAllocator,VkDebugUtilsMessengerEXT* pDebugMessenger);
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void DestroyDebugUtilsMessengerEXT(VkInstance instance,VkDebugUtilsMessengerEXT debugMessenger,const VkAllocationCallbacks* pAllocator);
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@ -43,13 +48,17 @@ private:
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VkDevice device;
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VkPhysicalDeviceFeatures deviceFeatures{};
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VkQueue graphicQueue;
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VkQueue presentQueue;
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VkSurfaceKHR surface;
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VkSwapchainKHR swapChain;
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std::vector<VkImage> swapChainImages;
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VkFormat swapChainImageFormat;
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VkExtent2D swapChainExtent;
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struct QueueFamilyIndices
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{
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std::optional<uint32_t> graphicsFamily;
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@ -60,6 +69,12 @@ private:
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}
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};
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struct SwapChainSupportDetails
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{
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VkSurfaceCapabilitiesKHR capabilities;
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std::vector<VkSurfaceFormatKHR> formats;
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std::vector<VkPresentModeKHR> presentModes;
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};
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GLFWwindow* initWindow(int Width, int Height);
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@ -89,6 +104,8 @@ private:
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void createSurface();
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bool checkDeviceExtensionSupport(VkPhysicalDevice device);
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void pickPhysicalDevice();
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bool isDeviceSuitable(VkPhysicalDevice device);
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@ -96,6 +113,13 @@ private:
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void createLogicalDevice();
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SwapChainSupportDetails querySwapChainSupport(VkPhysicalDevice device);
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VkSurfaceFormatKHR chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR>& availableFormats);
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VkPresentModeKHR chooseSwapPresentMode(const std::vector<VkPresentModeKHR>& availablePresentModes);
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VkExtent2D chooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities);
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void createSwapChain();
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};
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HelloTriangleApplication::HelloTriangleApplication()
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