From 0a4ed7140e65d83f3f8a0aca7abebbe8dffa360e Mon Sep 17 00:00:00 2001
From: Miguel <m.i@gmx.at>
Date: Thu, 9 Jan 2025 20:14:33 +0100
Subject: more

---
 main.cpp | 37 ++++++++++++-------------------------
 1 file changed, 12 insertions(+), 25 deletions(-)

(limited to 'main.cpp')

diff --git a/main.cpp b/main.cpp
index e7ae44a..022243a 100644
--- a/main.cpp
+++ b/main.cpp
@@ -78,8 +78,8 @@ private:
     bool quit=false;
     GLFWwindow* window;
     VkInstance instance;
-
     VkDebugUtilsMessengerEXT debugMessenger;
+
     VkSurfaceKHR surface;
 
     VkPhysicalDevice physicalDevice = VK_NULL_HANDLE;
@@ -133,6 +133,7 @@ private:
         createInfo.messageSeverity = VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT;
         createInfo.messageType = VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT;
         createInfo.pfnUserCallback = debugCallback;
+        createInfo.pUserData = nullptr; // Optional
     }
 
     static VKAPI_ATTR VkBool32 VKAPI_CALL debugCallback(
@@ -140,8 +141,9 @@ private:
         VkDebugUtilsMessageTypeFlagsEXT messageType,
         const VkDebugUtilsMessengerCallbackDataEXT* pCallbackData,
         void* pUserData) {
-
-        std::cerr << "validation layer: " << pCallbackData->pMessage << std::endl;
+            //if (messageSeverity >= VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT) {
+                std::cerr << "validation layer: " << pCallbackData->pMessage << std::endl;
+            //}
 
         return VK_FALSE;
     }
@@ -736,14 +738,15 @@ private:
         appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
         appInfo.apiVersion = VK_API_VERSION_1_0;
 
-        VkDebugUtilsMessengerCreateInfoEXT debugCreateInfo{};
-
         auto extensions = getRequiredExtensions();
 
         if (enableValidationLayers && !checkValidationLayerSupport()) {
             throw std::runtime_error("validation layers requested, but not available!");
         }
 
+        VkDebugUtilsMessengerCreateInfoEXT debugCreateInfo{};
+        populateDebugMessengerCreateInfo(debugCreateInfo);
+
         VkInstanceCreateInfo createInfo{};
         createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
         createInfo.pApplicationInfo = &appInfo;
@@ -753,8 +756,7 @@ private:
         if (enableValidationLayers) {
             createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
             createInfo.ppEnabledLayerNames = validationLayers.data();
-            populateDebugMessengerCreateInfo(debugCreateInfo);
-            createInfo.pNext = (VkDebugUtilsMessengerCreateInfoEXT*) &debugCreateInfo;
+            createInfo.pNext = (VkDebugUtilsMessengerCreateInfoEXT*) &debugCreateInfo; // for debugging of: vkCreateInstance & vkDestroyInstance
         } else {
             createInfo.enabledLayerCount = 0;
             createInfo.pNext = nullptr;
@@ -765,35 +767,20 @@ private:
     }
 
     // instance validation layers apply to all Vulkan calls (enble on device level for compat)
-    bool checkValidationLayerSupport() {
+    const bool checkValidationLayerSupport() {
         uint32_t layerCount;
         vkEnumerateInstanceLayerProperties(&layerCount, nullptr);
         std::vector<VkLayerProperties> availableLayers(layerCount);
         vkEnumerateInstanceLayerProperties(&layerCount, availableLayers.data());
-
-        std::set<std::string> requiredLayers(validationLayers.begin(), validationLayers.end());
-
         for (const char* layerName : validationLayers) {
             bool layerFound = false;
-
             for (const auto& layerProperties : availableLayers) {
                 std::cout << "LAYER: " << layerProperties.layerName << std::endl;
                 if (strcmp(layerName, layerProperties.layerName) == 0) layerFound=true;
             }
-
-            if (!layerFound) {
-                return false;
-            }
+            if (!layerFound) return false;
         }
         return true;
-/*
-        for (const auto& extension : availableExtensions) {
-            // std::cout << "Available Device Extension: " << extension.extensionName << std::endl;
-            requiredExtensions.erase(extension.extensionName);
-        }
-
-        return requiredExtensions.empty();
-        */
     }
 
     std::vector<const char*> getRequiredExtensions() {
@@ -959,11 +946,11 @@ private:
         }
         vkDestroySwapchainKHR(device, swapChain, nullptr);
         vkDestroyDevice(device, nullptr);
+
         if (enableValidationLayers) {
            DestroyDebugUtilsMessengerEXT(instance, debugMessenger, nullptr);
         }
         vkDestroySurfaceKHR(instance, surface, nullptr);
-
         vkDestroyInstance(instance, nullptr);
         glfwDestroyWindow(window);
         glfwTerminate();
-- 
cgit v1.2.3