C Specification

The VkPhysicalDevice4444FormatsFeaturesEXT structure is defined as:

// Provided by VK_EXT_4444_formats
typedef struct VkPhysicalDevice4444FormatsFeaturesEXT {
    VkStructureType    sType;
    void*              pNext;
    VkBool32           formatA4R4G4B4;
    VkBool32           formatA4B4G4R4;
} VkPhysicalDevice4444FormatsFeaturesEXT;

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.

  • formatA4R4G4B4 indicates that the implementation must support using a VkFormat of VK_FORMAT_A4R4G4B4_UNORM_PACK16_EXT with at least the following VkFormatFeatureFlagBits:

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT

    • VK_FORMAT_FEATURE_BLIT_SRC_BIT

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT

  • formatA4B4G4R4 indicates that the implementation must support using a VkFormat of VK_FORMAT_A4B4G4R4_UNORM_PACK16_EXT with at least the following VkFormatFeatureFlagBits:

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT

    • VK_FORMAT_FEATURE_BLIT_SRC_BIT

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT

If the VkPhysicalDevice4444FormatsFeaturesEXT 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. VkPhysicalDevice4444FormatsFeaturesEXT can also be used in the pNext chain of VkDeviceCreateInfo to selectively enable these features.

Valid Usage (Implicit)

  • VUID-VkPhysicalDevice4444FormatsFeaturesEXT-sType-sType
    sType must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_4444_FORMATS_FEATURES_EXT

Note

Although the formats defined by the VK_EXT_4444_formats extension were promoted to Vulkan 1.3 as optional formats, the VkPhysicalDevice4444FormatsFeaturesEXT structure was not promoted to Vulkan 1.3.

See Also

VK_EXT_4444_formats, VkBool32, VkStructureType

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