virtual VkResult createDebugReportCallbackEXT (VkInstance instance, const VkDebugReportCallbackCreateInfoEXT* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkDebugReportCallbackEXT* pCallback) const;
virtual void destroyDebugReportCallbackEXT (VkInstance instance, VkDebugReportCallbackEXT callback, const VkAllocationCallbacks* pAllocator) const;
virtual void debugReportMessageEXT (VkInstance instance, VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, deUint64 object, deUintptr location, deInt32 messageCode, const char* pLayerPrefix, const char* pMessage) const;
-virtual VkResult getPhysicalDeviceExternalImageFormatPropertiesNV (VkPhysicalDevice physicalDevice, VkFormat format, VkImageType type, VkImageTiling tiling, VkImageUsageFlags usage, VkImageCreateFlags flags, VkExternalMemoryHandleTypeFlagsNV externalHandleType, VkExternalImageFormatPropertiesNV* pExternalImageFormatProperties) const;