// Wrappers for extension functions that must be located using vkGetInstanceProcAddr
VkResult CreateDebugReportCallbackEXT(VkInstance instance, const VkDebugReportCallbackCreateInfoEXT* pCreateInfo,
const VkAllocationCallbacks* pAllocator, VkDebugReportCallbackEXT* pCallback) {
	auto func = (PFN_vkCreateDebugReportCallbackEXT) vkGetInstanceProcAddr(instance, "vkCreateDebugReportCallbackEXT");
	if(func != nullptr) {
		return func(instance, pCreateInfo, pAllocator, pCallback);
	} else {
		return VK_ERROR_EXTENSION_NOT_PRESENT;
	}
}

void DestroyDebugReportCallbackEXT(VkInstance instance, VkDebugReportCallbackEXT callback, const VkAllocationCallbacks* pAllocator) {
	auto func = (PFN_vkDestroyDebugReportCallbackEXT) vkGetInstanceProcAddr(instance, "vkDestroyDebugReportCallbackEXT");
	if(func != nullptr) {
		func(instance, callback, pAllocator);
	}
}

struct QueueFamilyIndices {
    int graphicsFamily = -1;
    int presentFamily = -1;

    bool isComplete() {
        return graphicsFamily >= 0 && presentFamily >= 0;
    }
};

struct SwapChainSupportDetails {
    VkSurfaceCapabilitiesKHR capabilities;
    std::vector<VkSurfaceFormatKHR> formats;
    std::vector<VkPresentModeKHR> presentModes;
};