Registered Extension Number

157

Revision

14

Ratification Status

Ratified

Extension and Version Dependencies

     VK_KHR_maintenance1
     and
     VK_KHR_bind_memory2
     and
     VK_KHR_get_memory_requirements2
     and
     VK_KHR_get_physical_device_properties2
or
Version 1.1

API Interactions

  • Interacts with VK_EXT_debug_report

Deprecation State

Contact

Other Extension Metadata

Last Modified Date

2017-08-11

IP Status

No known IP claims.

Contributors

  • Andrew Garrard, Samsung Electronics

  • Tobias Hector, Imagination Technologies

  • James Jones, NVIDIA

  • Daniel Koch, NVIDIA

  • Daniel Rakos, AMD

  • Romain Guy, Google

  • Jesse Hall, Google

  • Tom Cooksey, ARM Ltd

  • Jeff Leger, Qualcomm Technologies, Inc

  • Jan-Harald Fredriksen, ARM Ltd

  • Jan Outters, Samsung Electronics

  • Alon Or-bach, Samsung Electronics

  • Michael Worcester, Imagination Technologies

  • Jeff Bolz, NVIDIA

  • Tony Zlatinski, NVIDIA

  • Matthew Netsch, Qualcomm Technologies, Inc

Description

The use of Y′CBCR sampler conversion is an area in 3D graphics not used by most Vulkan developers. It is mainly used for processing inputs from video decoders and cameras. The use of the extension assumes basic knowledge of Y′CBCR concepts.

This extension provides the ability to perform specified color space conversions during texture sampling operations for the Y′CBCR color space natively. It also adds a selection of multi-planar formats, image aspect plane, and the ability to bind memory to the planes of an image collectively or separately.

Promotion to Vulkan 1.1

All functionality in this extension is included in core Vulkan 1.1, with the KHR suffix omitted. However, if Vulkan 1.1 is supported and this extension is not, the samplerYcbcrConversion capability is optional. The original type, enum and command names are still available as aliases of the core functionality.

New Object Types

New Commands

New Structures

New Enums

New Enum Constants

  • VK_KHR_SAMPLER_YCBCR_CONVERSION_EXTENSION_NAME

  • VK_KHR_SAMPLER_YCBCR_CONVERSION_SPEC_VERSION

  • Extending VkChromaLocation:

    • VK_CHROMA_LOCATION_COSITED_EVEN_KHR

    • VK_CHROMA_LOCATION_MIDPOINT_KHR

  • Extending VkFormat:

    • VK_FORMAT_B10X6G10X6R10X6G10X6_422_UNORM_4PACK16_KHR

    • VK_FORMAT_B12X4G12X4R12X4G12X4_422_UNORM_4PACK16_KHR

    • VK_FORMAT_B16G16R16G16_422_UNORM_KHR

    • VK_FORMAT_B8G8R8G8_422_UNORM_KHR

    • VK_FORMAT_G10X6B10X6G10X6R10X6_422_UNORM_4PACK16_KHR

    • VK_FORMAT_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16_KHR

    • VK_FORMAT_G10X6_B10X6R10X6_2PLANE_422_UNORM_3PACK16_KHR

    • VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16_KHR

    • VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_422_UNORM_3PACK16_KHR

    • VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_444_UNORM_3PACK16_KHR

    • VK_FORMAT_G12X4B12X4G12X4R12X4_422_UNORM_4PACK16_KHR

    • VK_FORMAT_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16_KHR

    • VK_FORMAT_G12X4_B12X4R12X4_2PLANE_422_UNORM_3PACK16_KHR

    • VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16_KHR

    • VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_422_UNORM_3PACK16_KHR

    • VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_444_UNORM_3PACK16_KHR

    • VK_FORMAT_G16B16G16R16_422_UNORM_KHR

    • VK_FORMAT_G16_B16R16_2PLANE_420_UNORM_KHR

    • VK_FORMAT_G16_B16R16_2PLANE_422_UNORM_KHR

    • VK_FORMAT_G16_B16_R16_3PLANE_420_UNORM_KHR

    • VK_FORMAT_G16_B16_R16_3PLANE_422_UNORM_KHR

    • VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM_KHR

    • VK_FORMAT_G8B8G8R8_422_UNORM_KHR

    • VK_FORMAT_G8_B8R8_2PLANE_420_UNORM_KHR

    • VK_FORMAT_G8_B8R8_2PLANE_422_UNORM_KHR

    • VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM_KHR

    • VK_FORMAT_G8_B8_R8_3PLANE_422_UNORM_KHR

    • VK_FORMAT_G8_B8_R8_3PLANE_444_UNORM_KHR

    • VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16_KHR

    • VK_FORMAT_R10X6G10X6_UNORM_2PACK16_KHR

    • VK_FORMAT_R10X6_UNORM_PACK16_KHR

    • VK_FORMAT_R12X4G12X4B12X4A12X4_UNORM_4PACK16_KHR

    • VK_FORMAT_R12X4G12X4_UNORM_2PACK16_KHR

    • VK_FORMAT_R12X4_UNORM_PACK16_KHR

  • Extending VkFormatFeatureFlagBits:

    • VK_FORMAT_FEATURE_COSITED_CHROMA_SAMPLES_BIT_KHR

    • VK_FORMAT_FEATURE_DISJOINT_BIT_KHR

    • VK_FORMAT_FEATURE_MIDPOINT_CHROMA_SAMPLES_BIT_KHR

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_CHROMA_RECONSTRUCTION_EXPLICIT_BIT_KHR

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_CHROMA_RECONSTRUCTION_EXPLICIT_FORCEABLE_BIT_KHR

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_LINEAR_FILTER_BIT_KHR

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_SEPARATE_RECONSTRUCTION_FILTER_BIT_KHR

  • Extending VkImageAspectFlagBits:

    • VK_IMAGE_ASPECT_PLANE_0_BIT_KHR

    • VK_IMAGE_ASPECT_PLANE_1_BIT_KHR

    • VK_IMAGE_ASPECT_PLANE_2_BIT_KHR

  • Extending VkImageCreateFlagBits:

    • VK_IMAGE_CREATE_DISJOINT_BIT_KHR

  • Extending VkObjectType:

    • VK_OBJECT_TYPE_SAMPLER_YCBCR_CONVERSION_KHR

  • Extending VkSamplerYcbcrModelConversion:

    • VK_SAMPLER_YCBCR_MODEL_CONVERSION_RGB_IDENTITY_KHR

    • VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_2020_KHR

    • VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_601_KHR

    • VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_709_KHR

    • VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_IDENTITY_KHR

  • Extending VkSamplerYcbcrRange:

    • VK_SAMPLER_YCBCR_RANGE_ITU_FULL_KHR

    • VK_SAMPLER_YCBCR_RANGE_ITU_NARROW_KHR

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_BIND_IMAGE_PLANE_MEMORY_INFO_KHR

    • VK_STRUCTURE_TYPE_IMAGE_PLANE_MEMORY_REQUIREMENTS_INFO_KHR

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES_KHR

    • VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_CREATE_INFO_KHR

    • VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_IMAGE_FORMAT_PROPERTIES_KHR

    • VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO_KHR

If VK_EXT_debug_report is supported:

  • Extending VkDebugReportObjectTypeEXT:

    • VK_DEBUG_REPORT_OBJECT_TYPE_SAMPLER_YCBCR_CONVERSION_EXT

    • VK_DEBUG_REPORT_OBJECT_TYPE_SAMPLER_YCBCR_CONVERSION_KHR_EXT

Version History

  • Revision 1, 2017-01-24 (Andrew Garrard)

    • Initial draft

  • Revision 2, 2017-01-25 (Andrew Garrard)

    • After initial feedback

  • Revision 3, 2017-01-27 (Andrew Garrard)

    • Higher bit depth formats, renaming, swizzle

  • Revision 4, 2017-02-22 (Andrew Garrard)

    • Added query function, formats as RGB, clarifications

  • Revision 5, 2017-04-?? (Andrew Garrard)

    • Simplified query and removed output conversions

  • Revision 6, 2017-04-24 (Andrew Garrard)

    • Tidying, incorporated new image query, restored transfer functions

  • Revision 7, 2017-04-25 (Andrew Garrard)

    • Added cosited option/midpoint requirement for formats, “bypassConversion”

  • Revision 8, 2017-04-25 (Andrew Garrard)

    • Simplified further

  • Revision 9, 2017-04-27 (Andrew Garrard)

    • Disjoint no more

  • Revision 10, 2017-04-28 (Andrew Garrard)

    • Restored disjoint

  • Revision 11, 2017-04-29 (Andrew Garrard)

    • Now Ycbcr conversion, and KHR

  • Revision 12, 2017-06-06 (Andrew Garrard)

    • Added conversion to image view creation

  • Revision 13, 2017-07-13 (Andrew Garrard)

    • Allowed cosited-only chroma samples for formats

  • Revision 14, 2017-08-11 (Andrew Garrard)

    • Reflected quantization changes in BT.2100-1

See Also

No cross-references are available

Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0