Changeset c1c2021 in opengl-game for vulkan-game.cpp

Timestamp:

Sep 23, 2019, 12:32:48 AM (5 years ago)

Author:

Dmitry Portnoy <dmp1488@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

502bd0b

Parents:

a0c5f28

Message:

In vulkangame, add code to create a logical device

File:

• vulkan-game.cpp (modified) (6 diffs)

vulkan-game.cpp

@@ -2 +2 @@
 
 #include <iostream>
+#include <set>
 
 #include "consts.hpp"
@@ -98 +99 @@
    createVulkanSurface();
    pickPhysicalDevice(deviceExtensions);
+   createLogicalDevice(validationLayers, deviceExtensions);
 }
 
@@ -142 +144 @@
       renderScene();
    }
+
+   vkDeviceWaitIdle(device);
 }
 
@@ -153 +157 @@
 
 void VulkanGame::cleanup() {
+   cleanupSwapChain();
+
+   vkDestroyDevice(device, nullptr);
+   vkDestroySurfaceKHR(instance, surface, nullptr);
+
    if (ENABLE_VALIDATION_LAYERS) {
       VulkanUtils::destroyDebugUtilsMessengerEXT(instance, debugMessenger, nullptr);
    }
+
    vkDestroyInstance(instance, nullptr);
 
@@ -164 +174 @@
    gui->shutdown();
    delete gui;
+}
+
+void VulkanGame::cleanupSwapChain() {
 }
 
@@ -295 +308 @@
    return indices.isComplete() && extensionsSupported && swapChainAdequate && supportedFeatures.samplerAnisotropy;
 }
+
+void VulkanGame::createLogicalDevice(
+      const vector<const char*> validationLayers,
+      const vector<const char*>& deviceExtensions) {
+   QueueFamilyIndices indices = VulkanUtils::findQueueFamilies(physicalDevice, surface);
+
+   vector<VkDeviceQueueCreateInfo> queueCreateInfos;
+   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 = {};
+   deviceFeatures.samplerAnisotropy = VK_TRUE;
+
+   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();
+
+   // These fields are ignored  by up-to-date Vulkan implementations,
+   // but it's a good idea to set them for backwards compatibility
+   if (ENABLE_VALIDATION_LAYERS) {
+      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 runtime_error("failed to create logical device!");
+   }
+
+   vkGetDeviceQueue(device, indices.graphicsFamily.value(), 0, &graphicsQueue);
+   vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
+}