save code

LogicDevice.cpp

@@ -0,0 +1,51 @@
+#include "HelloTriangleApplication.h"
+
+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;
+
+    createInfo.enabledExtensionCount = static_cast<uint32_t>(deviceExtensions.size());
+    createInfo.ppEnabledExtensionNames = deviceExtensions.data();
+
+    if (enableValidationLayers)
+    {
+        createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
+        createInfo.ppEnabledLayerNames = validationLayers.data();
+    }
+    else
+    {
+        createInfo.enabledLayerCount = 0;
+    }
+
+    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);
+}