private void createLogicalDevice()
{
QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
List <VkDeviceQueueCreateInfo> queueCreateInfos = new List <VkDeviceQueueCreateInfo>();
HashSet <int> uniqueQueueFamilies = new HashSet <int>()
{
indices.graphicsFamily, indices.presentFamily
};
float[] queuePriorities = new float[] { 1.0f };
foreach (var queueFamily in uniqueQueueFamilies)
{
VkDeviceQueueCreateInfo queueCreateInfo = new VkDeviceQueueCreateInfo();
queueCreateInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queueCreateInfo.queueFamilyIndex = queueFamily;
queueCreateInfo.queueCount = 1;
queueCreateInfo.pQueuePriorities = queuePriorities;
queueCreateInfos.Add(queueCreateInfo);
}
VkPhysicalDeviceFeatures deviceFeatures = new VkPhysicalDeviceFeatures();
VkDeviceCreateInfo createInfo = new VkDeviceCreateInfo();
createInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
createInfo.queueCreateInfoCount = queueCreateInfos.Count;
createInfo.pQueueCreateInfos = queueCreateInfos.ToArray();
createInfo.pEnabledFeatures = new VkPhysicalDeviceFeatures[] { deviceFeatures };
createInfo.enabledExtensionCount = deviceExtensions.Length;
createInfo.ppEnabledExtensionNames = deviceExtensions;
if (enableValidationLayers)
{
createInfo.enabledLayerCount = validationLayers.Length;
createInfo.ppEnabledLayerNames = validationLayers;
}
else
{
createInfo.enabledLayerCount = 0;
}
VkResult result = Vulkan.vkCreateDevice(physicalDevice, createInfo, null, out device);
if (result != VkResult.VK_SUCCESS)
{
throw Program.Throw("failed to create logical device!", result);
}
Vulkan.vkGetDeviceQueue(device, indices.graphicsFamily, 0, out graphicsQueue);
Vulkan.vkGetDeviceQueue(device, indices.presentFamily, 0, out presentQueue);
}