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dbfd1b68c4
* Bump API patch number and header version number to 54 for this update.
Github Issues:
Internal Issues:
* Fix tessellation domain to have an upper-left origin in the
<<img-tessellation-topology-ul, tessellation toplogy image>> and related
language. CTS and all implementations were already doing this, it was
just a documentation bug that it was flipped to lower-left (internal
issue 603).
* Add a section to the style guide describing how VUID tags are changed
and removed when the corresponding Valid Usage statements are modified
(internal issue 829).
* Add explicit Valid Usage statement to
slink:VkPipelineDynamicStateCreateInfo to require that members of
pname:pDynamicStates must be unique (internal issue 851).
New Extensions:
* `VK_KHR_16bit_storage`
* `VK_KHR_dedicated_allocation`
* `VK_KHR_external_fence`
* `VK_KHR_external_fence_capabilities`
* `VK_KHR_external_fence_fd`
* `VK_KHR_external_fence_win32`
* `VK_KHR_get_memory_requirements2`
* `VK_KHR_storage_buffer_storage_class`
* `VK_KHR_variable_pointers`
Extensions Promoted From KHX To KHR Status:
* `VK_KHR_external_memory`
* `VK_KHR_external_memory_capabilities`
* `VK_KHR_external_memory_fd`
* `VK_KHR_external_memory_win32`
* `VK_KHR_external_semaphore`
* `VK_KHR_external_semaphore_capabilities`
* `VK_KHR_external_semaphore_fd`
* `VK_KHR_external_semaphore_win32`
* `VK_KHR_win32_keyed_mutex`
76 lines
2.4 KiB
Plaintext
76 lines
2.4 KiB
Plaintext
[[VK_EXT_hdr_metadata]]
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== VK_EXT_hdr_metadata
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*Name String*::
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+VK_EXT_hdr_metadata+
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*Extension Type*::
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Device
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*Registered Extension Number*::
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106
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*Last Modified Date*::
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2017-03-04
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*Revision*::
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1
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*IP Status*::
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No known IP claims.
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*Dependencies*::
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- This extension is written against version 1.0 of the Vulkan API.
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- This extension requires +VK_KHR_surface+.
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*Contributors*::
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- Courtney Goeltzenleuchter, Google
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*Contacts*::
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- Courtney Goeltzenleuchter, Google
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This extension defines two new structures and a function to assign SMPTE
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(the Society of Motion Picture and Television Engineers) 2086 metadata and
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CTA (Consumer Technology Assocation) 861.3 metadata to a swapchain.
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The metadata includes the color primaries, white point, and luminance range
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of the mastering display, which all together define the color volume that
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contains all the possible colors the mastering display can produce.
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The mastering display is the display where creative work is done and
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creative intent is established.
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To preserve such creative intent as much as possible and achieve consistent
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color reproduction on different viewing displays, it is useful for the
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display pipeline to know the color volume of the original mastering display
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where content was created or tuned.
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This avoids performing unnecessary mapping of colors that are not
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displayable on the original mastering display.
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The metadata also includes the maxContentLightLevel and
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maxFrameAverageLightLevel as defined by CTA 861.3.
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While the general purpose of the metadata is to assist in the transformation
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between different color volumes of different displays and help achieve
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better color reproduction, it is not in the scope of this extension to
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define how exactly the metadata should be used in such a process.
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It is up to the implementation to determine how to make use of the metadata.
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=== New Enum Constants
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* Extending elink:VkStructureType:
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** ename:VK_STRUCTURE_TYPE_HDR_METADATA_EXT
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=== New Structures
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* slink:VkXYColorEXT
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* slink:VkHdrMetadataEXT
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=== New Functions
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* flink:vkSetHdrMetadataEXT
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=== Issues
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1) Do we need a query function?
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*PROPOSED*: No, Vulkan does not provide queries for state that the
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application can track on its own.
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2) Should we specify default if not specified by the application?
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*PROPOSED*: No, that leaves the default up to the display.
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=== Version History
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* Revision 1, 2016-12-27 (Courtney Goeltzenleuchter)
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- Initial version
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