Vulkan.Extensions.VK_EXT_swapchain_colorspace

Name

VK_EXT_swapchain_colorspace - instance extension

VK_EXT_swapchain_colorspace

Name String

VK_EXT_swapchain_colorspace

Extension Type

Instance extension

Registered Extension Number

105

Revision

4

Ratification Status

Not ratified

Extension and Version Dependencies

VK_KHR_surface

Contact

• Courtney Goeltzenleuchter @courtney-g%0A*Here describe the issue or question you have about the VK_EXT_swapchain_colorspace extension*

Other Extension Metadata

Last Modified Date

2019-04-26

IP Status

No known IP claims.

Contributors

• Courtney Goeltzenleuchter, Google

Description

This extension expands ColorSpaceKHR to add support for most standard color spaces beyond COLOR_SPACE_SRGB_NONLINEAR_KHR. This extension also adds support for COLOR_SPACE_PASS_THROUGH_EXT which allows applications to use color spaces not explicitly enumerated in ColorSpaceKHR.

New Enum Constants

• EXT_SWAPCHAIN_COLOR_SPACE_EXTENSION_NAME

• EXT_SWAPCHAIN_COLOR_SPACE_SPEC_VERSION

• Extending ColorSpaceKHR:

  • COLOR_SPACE_ADOBERGB_LINEAR_EXT
  • COLOR_SPACE_ADOBERGB_NONLINEAR_EXT
  • COLOR_SPACE_BT2020_LINEAR_EXT
  • COLOR_SPACE_BT709_LINEAR_EXT
  • COLOR_SPACE_BT709_NONLINEAR_EXT
  • COLOR_SPACE_DCI_P3_LINEAR_EXT
  • COLOR_SPACE_DCI_P3_NONLINEAR_EXT
  • COLOR_SPACE_DISPLAY_P3_LINEAR_EXT
  • COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT
  • COLOR_SPACE_DOLBYVISION_EXT
  • COLOR_SPACE_EXTENDED_SRGB_LINEAR_EXT
  • COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT
  • COLOR_SPACE_HDR10_HLG_EXT
  • COLOR_SPACE_HDR10_ST2084_EXT
  • COLOR_SPACE_PASS_THROUGH_EXT

Issues

1) Does the spec need to specify which kinds of image formats support the color spaces?

RESOLVED: Pixel format is independent of color space (though some color spaces really want / need floating point color components to be useful). Therefore, do not plan on documenting what formats support which color spaces. An application can call getPhysicalDeviceSurfaceFormatsKHR to query what a particular implementation supports.

2) How does application determine if HW supports appropriate transfer function for a color space?

RESOLVED: Extension indicates that implementation must not do the OETF encoding if it is not sRGB. That responsibility falls to the application shaders. Any other native OETF / EOTF functions supported by an implementation can be described by separate extension.

Version History

• Revision 1, 2016-12-27 (Courtney Goeltzenleuchter)

  • Initial version

• Revision 2, 2017-01-19 (Courtney Goeltzenleuchter)

  • Add pass through and multiple options for BT2020.
  • Clean up some issues with equations not displaying properly.

• Revision 3, 2017-06-23 (Courtney Goeltzenleuchter)

  • Add extended sRGB non-linear enum.

• Revision 4, 2019-04-26 (Graeme Leese)

  • Clarify color space transfer function usage.
  • Refer to normative definitions in the Data Format Specification.
  • Clarify DCI-P3 and Display P3 usage.

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.

Documentation

pattern COLOR_SPACE_DCI_P3_LINEAR_EXT :: ColorSpaceKHR

type EXT_SWAPCHAIN_COLOR_SPACE_SPEC_VERSION = 4

pattern EXT_SWAPCHAIN_COLOR_SPACE_SPEC_VERSION :: forall a. Integral a => a

type EXT_SWAPCHAIN_COLOR_SPACE_EXTENSION_NAME = "VK_EXT_swapchain_colorspace"

pattern EXT_SWAPCHAIN_COLOR_SPACE_EXTENSION_NAME :: forall a. (Eq a, IsString a) => a

newtype ColorSpaceKHR

VkColorSpaceKHR - Supported color space of the presentation engine

Description

Note

In the initial release of the VK_KHR_surface and VK_KHR_swapchain extensions, the token COLORSPACE_SRGB_NONLINEAR_KHR was used. Starting in the 2016-05-13 updates to the extension branches, matching release 1.0.13 of the core API specification, COLOR_SPACE_SRGB_NONLINEAR_KHR is used instead for consistency with Vulkan naming rules. The older enum is still available for backwards compatibility.

Note

In older versions of this extension COLOR_SPACE_DISPLAY_P3_LINEAR_EXT was misnamed COLOR_SPACE_DCI_P3_LINEAR_EXT. This has been updated to indicate that it uses RGB color encoding, not XYZ. The old name is deprecated but is maintained for backwards compatibility.

Note

For a traditional “Linear” or non-gamma transfer function color space use COLOR_SPACE_PASS_THROUGH_EXT.

The color components of non-linear color space swapchain images must have had the appropriate transfer function applied. The color space selected for the swapchain image will not affect the processing of data written into the image by the implementation. Vulkan requires that all implementations support the sRGB transfer function by use of an SRGB pixel format. Other transfer functions, such as SMPTE 170M or SMPTE2084, can be performed by the application shader. This extension defines enums for ColorSpaceKHR that correspond to the following color spaces:

Name	Red Primary	Green Primary	Blue Primary	White-point	Transfer function
DCI-P3	1.000, 0.000	0.000, 1.000	0.000, 0.000	0.3333, 0.3333	DCI P3
Display-P3	0.680, 0.320	0.265, 0.690	0.150, 0.060	0.3127, 0.3290 (D65)	Display-P3
BT709	0.640, 0.330	0.300, 0.600	0.150, 0.060	0.3127, 0.3290 (D65)	ITU (SMPTE 170M)
sRGB	0.640, 0.330	0.300, 0.600	0.150, 0.060	0.3127, 0.3290 (D65)	sRGB
extended sRGB	0.640, 0.330	0.300, 0.600	0.150, 0.060	0.3127, 0.3290 (D65)	extended sRGB
HDR10_ST2084	0.708, 0.292	0.170, 0.797	0.131, 0.046	0.3127, 0.3290 (D65)	ST2084 PQ
DOLBYVISION	0.708, 0.292	0.170, 0.797	0.131, 0.046	0.3127, 0.3290 (D65)	ST2084 PQ
HDR10_HLG	0.708, 0.292	0.170, 0.797	0.131, 0.046	0.3127, 0.3290 (D65)	HLG
AdobeRGB	0.640, 0.330	0.210, 0.710	0.150, 0.060	0.3127, 0.3290 (D65)	AdobeRGB

Color Spaces and Attributes

The transfer functions are described in the “Transfer Functions” chapter of the Khronos Data Format Specification.

Except Display-P3 OETF, which is:

[begin{aligned} E & = begin{cases} 1.055 times L^{1 over 2.4} - 0.055 & text{for} 0.0030186 leq L leq 1 -- 12.92 times L & text{for} 0 leq L < 0.0030186

Constructors

ColorSpaceKHR Int32

Bundled Patterns

pattern COLOR_SPACE_DISPLAY_P3_LINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_DISPLAY_P3_LINEAR_EXT specifies support for the Display-P3 color space to be displayed using a linear EOTF.

pattern COLOR_SPACE_SRGB_NONLINEAR_KHR :: ColorSpaceKHR

COLOR_SPACE_SRGB_NONLINEAR_KHR specifies support for the sRGB color space.

pattern COLOR_SPACE_DISPLAY_NATIVE_AMD :: ColorSpaceKHR

COLOR_SPACE_DISPLAY_NATIVE_AMD specifies support for the display’s native color space. This matches the color space expectations of AMD’s FreeSync2 standard, for displays supporting it.

pattern COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT specifies support for the extended sRGB color space to be displayed using an sRGB EOTF.

pattern COLOR_SPACE_PASS_THROUGH_EXT :: ColorSpaceKHR

COLOR_SPACE_PASS_THROUGH_EXT specifies that color components are used “as is”. This is intended to allow applications to supply data for color spaces not described here.

pattern COLOR_SPACE_ADOBERGB_NONLINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_ADOBERGB_NONLINEAR_EXT specifies support for the AdobeRGB color space to be displayed using the Gamma 2.2 EOTF.

pattern COLOR_SPACE_ADOBERGB_LINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_ADOBERGB_LINEAR_EXT specifies support for the AdobeRGB color space to be displayed using a linear EOTF.

pattern COLOR_SPACE_HDR10_HLG_EXT :: ColorSpaceKHR

COLOR_SPACE_HDR10_HLG_EXT specifies support for the HDR10 (BT2020 color space) to be displayed using the Hybrid Log Gamma (HLG) EOTF.

pattern COLOR_SPACE_DOLBYVISION_EXT :: ColorSpaceKHR

COLOR_SPACE_DOLBYVISION_EXT specifies support for the Dolby Vision (BT2020 color space), proprietary encoding, to be displayed using the SMPTE ST2084 EOTF.

pattern COLOR_SPACE_HDR10_ST2084_EXT :: ColorSpaceKHR

COLOR_SPACE_HDR10_ST2084_EXT specifies support for the HDR10 (BT2020 color) space to be displayed using the SMPTE ST2084 Perceptual Quantizer (PQ) EOTF.

pattern COLOR_SPACE_BT2020_LINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_BT2020_LINEAR_EXT specifies support for the BT2020 color space to be displayed using a linear EOTF.

pattern COLOR_SPACE_BT709_NONLINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_BT709_NONLINEAR_EXT specifies support for the BT709 color space to be displayed using the SMPTE 170M EOTF.

pattern COLOR_SPACE_BT709_LINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_BT709_LINEAR_EXT specifies support for the BT709 color space to be displayed using a linear EOTF.

pattern COLOR_SPACE_DCI_P3_NONLINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_DCI_P3_NONLINEAR_EXT specifies support for the DCI-P3 color space to be displayed using the DCI-P3 EOTF. Note that values in such an image are interpreted as XYZ encoded color data by the presentation engine.

pattern COLOR_SPACE_EXTENDED_SRGB_LINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_EXTENDED_SRGB_LINEAR_EXT specifies support for the extended sRGB color space to be displayed using a linear EOTF.

pattern COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT :: ColorSpaceKHR

COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT specifies support for the Display-P3 color space to be displayed using an sRGB-like EOTF (defined below).

Instances

Storable ColorSpaceKHR

Defined in Vulkan.Extensions.VK_KHR_surface

Methods

sizeOf :: ColorSpaceKHR -> Int

alignment :: ColorSpaceKHR -> Int

peekElemOff :: Ptr ColorSpaceKHR -> Int -> IO ColorSpaceKHR

pokeElemOff :: Ptr ColorSpaceKHR -> Int -> ColorSpaceKHR -> IO ()

peekByteOff :: Ptr b -> Int -> IO ColorSpaceKHR

pokeByteOff :: Ptr b -> Int -> ColorSpaceKHR -> IO ()

peek :: Ptr ColorSpaceKHR -> IO ColorSpaceKHR

poke :: Ptr ColorSpaceKHR -> ColorSpaceKHR -> IO ()

Read ColorSpaceKHR

Defined in Vulkan.Extensions.VK_KHR_surface

Methods

readsPrec :: Int -> ReadS ColorSpaceKHR

readList :: ReadS [ColorSpaceKHR]

readPrec :: ReadPrec ColorSpaceKHR

readListPrec :: ReadPrec [ColorSpaceKHR]

Show ColorSpaceKHR

Defined in Vulkan.Extensions.VK_KHR_surface

Methods

showsPrec :: Int -> ColorSpaceKHR -> ShowS

show :: ColorSpaceKHR -> String

showList :: [ColorSpaceKHR] -> ShowS

Eq ColorSpaceKHR

Defined in Vulkan.Extensions.VK_KHR_surface

Methods

(==) :: ColorSpaceKHR -> ColorSpaceKHR -> Bool

(/=) :: ColorSpaceKHR -> ColorSpaceKHR -> Bool

Ord ColorSpaceKHR

Defined in Vulkan.Extensions.VK_KHR_surface

Methods

compare :: ColorSpaceKHR -> ColorSpaceKHR -> Ordering

(<) :: ColorSpaceKHR -> ColorSpaceKHR -> Bool

(<=) :: ColorSpaceKHR -> ColorSpaceKHR -> Bool

(>) :: ColorSpaceKHR -> ColorSpaceKHR -> Bool

(>=) :: ColorSpaceKHR -> ColorSpaceKHR -> Bool

max :: ColorSpaceKHR -> ColorSpaceKHR -> ColorSpaceKHR

min :: ColorSpaceKHR -> ColorSpaceKHR -> ColorSpaceKHR

Zero ColorSpaceKHR

Defined in Vulkan.Extensions.VK_KHR_surface

Methods

zero :: ColorSpaceKHR