C Specification

To copy data from an image object to host memory, call:

// Provided by VK_EXT_host_image_copy
VkResult vkCopyImageToMemoryEXT(
    VkDevice                                    device,
    const VkCopyImageToMemoryInfoEXT*           pCopyImageToMemoryInfo);

Parameters

  • device is the device which owns pCopyImageToMemoryInfo->srcImage.

  • pCopyImageToMemoryInfo is a pointer to a VkCopyImageToMemoryInfoEXT structure describing the copy parameters.

Description

This command is functionally similar to vkCmdCopyImageToBuffer2, except it is executed on the host and writes to host memory instead of a buffer.

Valid Usage

  • VUID-vkCopyImageToMemoryEXT-hostImageCopy-09063
    The hostImageCopy feature must be enabled

Valid Usage (Implicit)

  • VUID-vkCopyImageToMemoryEXT-device-parameter
    device must be a valid VkDevice handle

  • VUID-vkCopyImageToMemoryEXT-pCopyImageToMemoryInfo-parameter
    pCopyImageToMemoryInfo must be a valid pointer to a valid VkCopyImageToMemoryInfoEXT structure

Return Codes
On success, this command returns

  • VK_SUCCESS

On failure, this command returns

  • VK_ERROR_INITIALIZATION_FAILED

  • VK_ERROR_OUT_OF_HOST_MEMORY

  • VK_ERROR_OUT_OF_DEVICE_MEMORY

  • VK_ERROR_MEMORY_MAP_FAILED

See Also

VK_EXT_host_image_copy, VkCopyImageToMemoryInfoEXT, VkDevice

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.

Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0