C Specification

The VkCopyCommandTransformInfoQCOM structure is defined as:

// Provided by VK_QCOM_rotated_copy_commands
typedef struct VkCopyCommandTransformInfoQCOM {
    VkStructureType                  sType;
    const void*                      pNext;
    VkSurfaceTransformFlagBitsKHR    transform;
} VkCopyCommandTransformInfoQCOM;

Members

  • sType is a VkStructureType value identifying this structure.

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

  • transform is a VkSurfaceTransformFlagBitsKHR value describing the transform to be applied.

Description

Including this structure in the pNext chain of VkBufferImageCopy2 defines a rotation to be performed when copying between an image and a buffer. Including this structure in the pNext chain of VkBlitImageInfo2 defines a rotation to be performed when blitting between two images. If this structure is not specified in either case, the implementation behaves as if it was specified with a transform equal to VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR.

Specifying a transform for a copy between an image and a buffer rotates the region accessed in the image around the offset. Specifying a transform for a blit performs a similar transform as described in Image Blits with Scaling and Rotation.

Rotations other than VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR can only be specified for single-plane 2D images with a 1x1x1 texel block extent.

Valid Usage

  • VUID-VkCopyCommandTransformInfoQCOM-transform-04560
    transform must be VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR, VK_SURFACE_TRANSFORM_ROTATE_90_BIT_KHR, VK_SURFACE_TRANSFORM_ROTATE_180_BIT_KHR, or VK_SURFACE_TRANSFORM_ROTATE_270_BIT_KHR

Valid Usage (Implicit)

  • VUID-VkCopyCommandTransformInfoQCOM-sType-sType
    sType must be VK_STRUCTURE_TYPE_COPY_COMMAND_TRANSFORM_INFO_QCOM

See Also

VK_QCOM_rotated_copy_commands, VkStructureType, VkSurfaceTransformFlagBitsKHR

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 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0