#include <stdio.h>
#include <vulkan/vulkan.h>

VKAPI_ATTR VkBool32 VKAPI_CALL
debugCallback(VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity,
              VkDebugUtilsMessageTypeFlagsEXT messageType,
              const VkDebugUtilsMessengerCallbackDataEXT *pCallbackData,
              void *pUserData) {
  /* if (messageSeverity >= VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT) */
  fprintf(stderr, "Validation: %s\n", pCallbackData->pMessage);
  return VK_FALSE;
}