vkCmdReserveSpaceForCommandsNVX(3)

# vkCmdReserveSpaceForCommandsNVX(3) Manual Page

## Name

vkCmdReserveSpaceForCommandsNVX - Perform a reservation of command buffer space

## C Specification

Command space for generated commands recorded into a secondary command buffer must be reserved by calling:

    void vkCmdReserveSpaceForCommandsNVX(
        VkCommandBuffer                             commandBuffer,
        const VkCmdReserveSpaceForCommandsInfoNVX*  pReserveSpaceInfo);

## Parameters

- `commandBuffer` is the secondary command buffer in which the space for device-generated commands is reserved.

- `pProcessCommandsInfo` is a pointer to a VkCmdReserveSpaceForCommandsInfoNVX structure containing parameters affecting the reservation of command buffer space.

## Description

Valid Usage

- The provided `commandBuffer` must not have had a prior space reservation since its creation or the last reset.

- The state of the `commandBuffer` must be legal to execute all commands within the sequence provided by the `indirectCommandsLayout` member of `pProcessCommandsInfo`.

Valid Usage (Implicit)

- `commandBuffer` must be a valid VkCommandBuffer handle

- `pReserveSpaceInfo` must be a valid pointer to a valid VkCmdReserveSpaceForCommandsInfoNVX structure

- `commandBuffer` must be in the recording state

- The `VkCommandPool` that `commandBuffer` was allocated from must support graphics, or compute operations

- This command must only be called inside of a render pass instance

- `commandBuffer` must be a secondary `VkCommandBuffer`

Host Synchronization

- Host access to `commandBuffer` must be externally synchronized

- Host access to the `VkCommandPool` that `commandBuffer` was allocated from must be externally synchronized

Command Properties

Command Buffer Levels | Render Pass Scope | Supported Queue Types | Pipeline Type
--- | --- | --- | ---
Secondary | Inside | Graphics Compute |

## See Also

VkCmdReserveSpaceForCommandsInfoNVX, VkCommandBuffer

## 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 (c) 2014-2019 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.