C Specification

To query the tile properties from the attachments in framebuffer, call:

// Provided by VK_QCOM_tile_properties
VkResult vkGetFramebufferTilePropertiesQCOM(
    VkDevice                                    device,
    VkFramebuffer                               framebuffer,
    uint32_t*                                   pPropertiesCount,
    VkTilePropertiesQCOM*                       pProperties);

Parameters

  • device is a logical device associated with the framebuffer.

  • framebuffer is a handle of the framebuffer to query.

  • pPropertiesCount is a pointer to an integer related to the number of tile properties available or queried, as described below.

  • pProperties is either NULL or a pointer to an array of VkTilePropertiesQCOM structures.

Description

If pProperties is NULL, then the number of tile properties available is returned in pPropertiesCount. Otherwise, pPropertiesCount must point to a variable set by the user to the number of elements in the pProperties array, and on return the variable is overwritten with the number of properties actually written to pProperties. If pPropertiesCount is less than the number of tile properties available, at most pPropertiesCount structures will be written, and VK_INCOMPLETE will be returned instead of VK_SUCCESS, to indicate that not all the available properties were returned.

The number of tile properties available is determined by the number of merged subpasses, and each tile property is associated with a merged subpass. There will be at most as many properties as there are subpasses within the render pass. To obtain the tile properties for a given merged subpass, the pProperties array can be indexed using the postMergeIndex value provided in VkRenderPassSubpassFeedbackInfoEXT.

Valid Usage (Implicit)

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

  • VUID-vkGetFramebufferTilePropertiesQCOM-framebuffer-parameter
    framebuffer must be a valid VkFramebuffer handle

  • VUID-vkGetFramebufferTilePropertiesQCOM-pPropertiesCount-parameter
    pPropertiesCount must be a valid pointer to a uint32_t value

  • VUID-vkGetFramebufferTilePropertiesQCOM-pProperties-parameter
    If the value referenced by pPropertiesCount is not 0, and pProperties is not NULL, pProperties must be a valid pointer to an array of pPropertiesCount VkTilePropertiesQCOM structures

  • VUID-vkGetFramebufferTilePropertiesQCOM-framebuffer-parent
    framebuffer must have been created, allocated, or retrieved from device

Return Codes
On success, this command returns

  • VK_SUCCESS

  • VK_INCOMPLETE

This command does not return any failure codes

See Also

VK_QCOM_tile_properties, VkDevice, VkFramebuffer, VkTilePropertiesQCOM

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