vkAcquireNextImage2KHR

To acquire an available presentable image to use, and retrieve the index of that image, call:

VkResult vkAcquireNextImage2KHR(
    VkDevice device,
    const VkAcquireNextImageInfoKHR* pAcquireInfo,
    uint32_t* pImageIndex);

pub fn acquire_next_image2_khr(
    device: vk::Device,
    p_acquire_info: *const vk::AcquireNextImageInfoKHR,
    p_image_index: *mut u32,
) -> vk::Result;

• device is the device associated with swapchain.
• pAcquireInfo is a pointer to a VkAcquireNextImageInfoKHR structure containing parameters of the acquire.
• pImageIndex is a pointer to a uint32_t value specifying the index of the next image to use.

If the swapchain has been created with the VK_SWAPCHAIN_CREATE_DEFERRED_MEMORY_ALLOCATION_BIT_KHR flag, the image whose index is returned in pImageIndex will be fully backed by memory before this call returns to the application.