如何解决仅在调试模式下无法创建逻辑设备
我得到VK_ERROR_FEATURE_NOT_PRESENT(-8)
。
但是我正在使用vkGetPhysicalDeviceFeatures
来获取功能。
我的代码:
std::vector<VkDeviceQueueCreateInfo> LogicalDevice::CreateDeviceQueueCreateInfos(QueueFamilies queueFamilies)
{
std::vector uniqueQueueFamilies = queueFamilies.GetUniqueQueueFamilies();
std::vector<VkDeviceQueueCreateInfo> queueCreateInfos;
for (auto queueFamily : uniqueQueueFamilies)
{
const int countOfQueues = queueFamily.CountOfQueues;
std::vector<float> queuePriorities(countOfQueues);
for (int indexOfPriority = 0; indexOfPriority < countOfQueues; indexOfPriority++)
{
queuePriorities[indexOfPriority] = 1.0f - ( (float) indexOfPriority / countOfQueues);
}
VkDeviceQueueCreateInfo queueCreateInfo{};
queueCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queueCreateInfo.queueFamilyIndex = queueFamily.Index.value();
queueCreateInfo.queueCount = queueFamily.CountOfQueues;
queueCreateInfo.flags = queueFamily.Flags;
queueCreateInfo.pQueuePriorities = queuePriorities.data();
queueCreateInfos.push_back(queueCreateInfo);
}
return queueCreateInfos;
}
VkDeviceCreateInfo LogicalDevice::GetDeviceCreateInfo(std::vector<VkDeviceQueueCreateInfo> deviceQueueCreateInfos,VkPhysicalDevice physicalDevice)
{
VkPhysicalDeviceFeatures deviceFeatures{};
vkGetPhysicalDeviceFeatures(physicalDevice,&deviceFeatures);
VkDeviceCreateInfo deviceCreateInfo{};
deviceCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
deviceCreateInfo.queueCreateInfoCount = static_cast<uint32_t>(deviceQueueCreateInfos.size());
deviceCreateInfo.pQueueCreateInfos = deviceQueueCreateInfos.data();
deviceCreateInfo.pEnabledFeatures = &deviceFeatures;
return deviceCreateInfo;
}
void LogicalDevice::Initialize(VkPhysicalDevice physicalDevice,VkSurfaceKHR surfaceForPickingPhysicalDevice)
{
m_queueFamilies = QueueFamilies::GetQueueFamilies(physicalDevice,surfaceForPickingPhysicalDevice);
std::vector<VkDeviceQueueCreateInfo> deviceQueueCreateInfos = CreateDeviceQueueCreateInfos(m_queueFamilies);
VkDeviceCreateInfo deviceCreateInfo = GetDeviceCreateInfo(deviceQueueCreateInfos,physicalDevice);
VkResult result = vkCreateDevice(physicalDevice,&deviceCreateInfo,nullptr,&m_vulkanDevice);
if (result != VK_SUCCESS)
{
throw new std::runtime_error("Cannot create logical device.");
}
}
解决方法
您将要素读入并在创建信息结构中指向的deviceFeature
变量位于GetDeviceCreateInfo
的本地。这在调用vkCreateDevice
时超出范围,这会导致未定义的行为。您可能会在设备创建时收到随机垃圾,这会导致该错误。
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