# vkGetGeneratedCommandsMemoryRequirementsEXT(3) Manual Page

## Name

vkGetGeneratedCommandsMemoryRequirementsEXT - Retrieve the buffer allocation requirements for generated commands

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## C Specification

With `VK_EXT_device_generated_commands`, to retrieve the memory size and alignment requirements of a particular execution state call:

    // Provided by VK_EXT_device_generated_commands
    void vkGetGeneratedCommandsMemoryRequirementsEXT(
        VkDevice                                    device,
        const VkGeneratedCommandsMemoryRequirementsInfoEXT* pInfo,
        VkMemoryRequirements2*                      pMemoryRequirements);

## Parameters

- `device` is the logical device that owns the buffer.

- `pInfo` is a pointer to a VkGeneratedCommandsMemoryRequirementsInfoEXT structure containing parameters required for the memory requirements query.

- `pMemoryRequirements` is a pointer to a VkMemoryRequirements2 structure in which the memory requirements of the buffer object are returned.

## Description

If the size returned is zero, the preprocessing step can be skipped for this layout.

Valid Usage (Implicit)

- VUID-vkGetGeneratedCommandsMemoryRequirementsEXT-device-parameter
  `device` must be a valid VkDevice handle

- VUID-vkGetGeneratedCommandsMemoryRequirementsEXT-pInfo-parameter
  `pInfo` must be a valid pointer to a valid VkGeneratedCommandsMemoryRequirementsInfoEXT structure

- VUID-vkGetGeneratedCommandsMemoryRequirementsEXT-pMemoryRequirements-parameter
  `pMemoryRequirements` must be a valid pointer to a VkMemoryRequirements2 structure

## See Also

VK_EXT_device_generated_commands, VkDevice, VkGeneratedCommandsMemoryRequirementsInfoEXT, VkMemoryRequirements2

## 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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0