C Specification

The VkPhysicalDeviceBorderColorSwizzleFeaturesEXT structure is defined as:

// Provided by VK_EXT_border_color_swizzle
typedef struct VkPhysicalDeviceBorderColorSwizzleFeaturesEXT {
    VkStructureType    sType;
    void*              pNext;
    VkBool32           borderColorSwizzle;
    VkBool32           borderColorSwizzleFromImage;
} VkPhysicalDeviceBorderColorSwizzleFeaturesEXT;

Members

This structure describes the following features:

Description

  • sType is the type of this structure.

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

  • borderColorSwizzle indicates that defined values are returned by sampled image operations when used with a sampler that uses a VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK, VK_BORDER_COLOR_INT_OPAQUE_BLACK, VK_BORDER_COLOR_FLOAT_CUSTOM_EXT, or VK_BORDER_COLOR_INT_CUSTOM_EXT borderColor and an image view that uses a non-identity component mapping, when either borderColorSwizzleFromImage is enabled or the VkSamplerBorderColorComponentMappingCreateInfoEXT is specified.

  • borderColorSwizzleFromImage indicates that the implementation will return the correct border color values from sampled image operations under the conditions expressed above, without the application having to specify the border color component mapping when creating the sampler object. If this feature bit is not set, applications can chain a VkSamplerBorderColorComponentMappingCreateInfoEXT structure when creating samplers for use with image views that do not have an identity swizzle and, when those samplers are combined with image views using the same component mapping, sampled image operations that use opaque black or custom border colors will return the correct border color values.

If the VkPhysicalDeviceBorderColorSwizzleFeaturesEXT structure is included in the pNext chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. VkPhysicalDeviceBorderColorSwizzleFeaturesEXT can also be used in the pNext chain of VkDeviceCreateInfo to selectively enable these features.

Valid Usage (Implicit)
  • VUID-VkPhysicalDeviceBorderColorSwizzleFeaturesEXT-sType-sType
    sType must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BORDER_COLOR_SWIZZLE_FEATURES_EXT

See Also

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 2014-2021 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0