C Specification

To query the memory size needed to copy to or from an image using vkCopyMemoryToImageEXT or vkCopyImageToMemoryEXT when the VK_HOST_IMAGE_COPY_MEMCPY_EXT flag is specified, add a VkSubresourceHostMemcpySizeEXT structure to the pNext chain of the VkSubresourceLayout2EXT structure in a call to vkGetImageSubresourceLayout2EXT.

The VkSubresourceHostMemcpySizeEXT structure is defined as:

// Provided by VK_EXT_host_image_copy
typedef struct VkSubresourceHostMemcpySizeEXT {
    VkStructureType    sType;
    void*              pNext;
    VkDeviceSize       size;
} VkSubresourceHostMemcpySizeEXT;


  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • size is the size in bytes of the image subresource.


Valid Usage (Implicit)
  • VUID-VkSubresourceHostMemcpySizeEXT-sType-sType

See Also

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

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