vkTransitionImageLayoutEXT

To perform an image layout transition on the host, call:

VkResult vkTransitionImageLayoutEXT(
    VkDevice device,
    uint32_t transitionCount,
    const VkHostImageLayoutTransitionInfoEXT* pTransitions);

device is the device which owns pTransitions[i].image.
transitionCount is the number of image layout transitions to perform.
pTransitions is a pointer to an array of VkHostImageLayoutTransitionInfoEXT structures specifying the image and subresource ranges within them to transition.

device must be a valid VkDevice handle

pTransitions must be a valid pointer to an array of transitionCount valid VkHostImageLayoutTransitionInfoEXT structures

transitionCount must be greater than 0