Changeset 90a424f in opengl-game for vulkan-utils.cpp

Timestamp:

Sep 16, 2019, 7:04:53 PM (5 years ago)

Author:

Dmitry Portnoy <dmitry.portnoy@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

fe5c3ba

Parents:

c6fec84

Message:

In vulkangame, add code to create a Vulkan surface and pick a physical device

File:

• vulkan-utils.cpp (modified) (2 diffs)

vulkan-utils.cpp

@@ -1 +1 @@
 #include "vulkan-utils.hpp"
+
+#include <set>
+#include <string>
 
 bool VulkanUtils::checkValidationLayerSupport(const vector<const char*> &validationLayers) {
@@ -48 +51 @@
    }
 }
+
+QueueFamilyIndices VulkanUtils::findQueueFamilies(VkPhysicalDevice device, VkSurfaceKHR surface) {
+   QueueFamilyIndices indices;
+
+   uint32_t queueFamilyCount = 0;
+   vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, nullptr);
+
+   vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
+   vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, queueFamilies.data());
+
+   int i = 0;
+   for (const auto& queueFamily : queueFamilies) {
+      if (queueFamily.queueCount > 0 && queueFamily.queueFlags & VK_QUEUE_GRAPHICS_BIT) {
+         indices.graphicsFamily = i;
+      }
+
+      VkBool32 presentSupport = false;
+      vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &presentSupport);
+
+      if (queueFamily.queueCount > 0 && presentSupport) {
+         indices.presentFamily = i;
+      }
+
+      if (indices.isComplete()) {
+         break;
+      }
+
+      i++;
+   }
+
+   return indices;
+}
+
+bool VulkanUtils::checkDeviceExtensionSupport(VkPhysicalDevice device, const vector<const char*>& deviceExtensions) {
+   uint32_t extensionCount;
+   vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, nullptr);
+
+   vector<VkExtensionProperties> availableExtensions(extensionCount);
+   vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, availableExtensions.data());
+
+   set<string> requiredExtensions(deviceExtensions.begin(), deviceExtensions.end());
+
+   for (const auto& extension : availableExtensions) {
+      requiredExtensions.erase(extension.extensionName);
+   }
+
+   return requiredExtensions.empty();
+}
+
+SwapChainSupportDetails VulkanUtils::querySwapChainSupport(VkPhysicalDevice device, VkSurfaceKHR surface) {
+   SwapChainSupportDetails details;
+
+   vkGetPhysicalDeviceSurfaceCapabilitiesKHR(device, surface, &details.capabilities);
+
+   uint32_t formatCount;
+   vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, nullptr);
+
+   if (formatCount != 0) {
+      details.formats.resize(formatCount);
+      vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, details.formats.data());
+   }
+
+   uint32_t presentModeCount;
+   vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, nullptr);
+
+   if (presentModeCount != 0) {
+      details.presentModes.resize(presentModeCount);
+      vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, details.presentModes.data());
+   }
+
+   return details;
+}