find required queues

main.cpp

@@ -36,6 +36,7 @@ private:
   void initVulkan() {
     createInstance();
     pickPhysicalDevice();
+    findPhysicalDeviceQueueFamilies();
   }
 
   void mainLoop() {
@@ -138,11 +139,30 @@ private:
     return true;
   }
 
+  void findPhysicalDeviceQueueFamilies() {
+    uint32_t queuesCount = 0;
+    vkGetPhysicalDeviceQueueFamilyProperties(physicalDevice, &queuesCount, nullptr);
+
+    std::vector<VkQueueFamilyProperties> queueFamilyProperties(queuesCount);
+    vkGetPhysicalDeviceQueueFamilyProperties(physicalDevice, &queuesCount, queueFamilyProperties.data());
+
+    int index = 0;
+    for (const auto& familyProperty : queueFamilyProperties) {
+      if (familyProperty.queueFlags & VK_QUEUE_GRAPHICS_BIT) {
+        graphicsQueueFamilyIndex = index;
+      }
+      index++;
+    }
+
+    if (index == -1) throw std::runtime_error("nu require queue families found");
+  }
+
 private:
   GLFWwindow* window = nullptr;
 
   VkInstance instance = VK_NULL_HANDLE;
   VkPhysicalDevice physicalDevice = VK_NULL_HANDLE;
+  uint32_t graphicsQueueFamilyIndex = -1;
 };
 
 int main() {