VUID-VkSwapchainCreateInfoKHR-pNext-07781 impossible to satisfy

[mickvangelderen]

If a VkSwapchainPresentScalingCreateInfoKHR structure was not included in the pNext chain, or it is included and VkSwapchainPresentScalingCreateInfoKHR::scalingBehavior is zero then imageExtent must be between minImageExtent and maxImageExtent, inclusive, where minImageExtent and maxImageExtent are members of the VkSurfaceCapabilitiesKHR structure returned by vkGetPhysicalDeviceSurfaceCapabilitiesKHR for the surface

The min and max image extents obtained from vkGetPhysicalDeviceSurfaceCapabilitiesKHR may change before vkCreateSwapchainKHR is executed, and so there is no way to guarantee that the image extent within the limits at the time of the driver handling vkCreateSwapchainKHR.

This happens when resizing a window in X11 while rendering to it from a separate thread:

Requested image extent (1474x716) does not match surface (1456x542), marking swapchain out of date type=GENERAL id=4 name=NVIDIA

The above error occurs despite a fresh query of the surface capabilities and restricting the image extent to be within the returned limits.

Suggestion

Instead of letting this be invalid usage of the API, require the driver to return an error so the application can retry swapchain creation later.

[mickvangelderen]

I'm new so feel free to let me know if I can do something better.

[cubanismo]

Thanks for the report @mickvangelderen. We are aware of this issue with the swapchain API, and have been discussing solutions similar to that proposed here for some time. Stay tuned!