Vulkan-Docs/doc/specs/vulkan/appendices/VK_EXT_validation_cache.txt
Jon Leech 0cc6bba634 Change log for September 15, 2017 Vulkan 1.0.61 spec update:
* Bump API patch number and header version number to 61 for this update.

Github Issues:

  * Provide alternate length attributes (altlen=) in the XML schema, for
    those using length attributes to generate code instead of documentation
    (public issue 555).
  * Fix erroneous references to `latex:` being used for asciidoc math
    markup, rather than `latexmath:` (public pull request 556).
  * Add author ID to XML for Kazan software renderer (public pull request
    557).

Internal Issues:

  * Add the <<fundamentals-abi,Application Binary Interface>> section
    describing platform ABI requirements and recommendations, add examples
    of function and function pointer declarations to the
    <<boilerplate-platform-specific-calling-conventions, Platform-Specific
    Calling Conventions>> section, and remove related language that existed
    elsewhere in the specification (internal issue 64).
  * Describe where to document valid usage interactions of chained
    structures in the style guide, and fix one case now appearing in
    slink:VkBufferCreateInfo instead of the child
    slink:VkDedicatedAllocationBufferCreateInfoNV structure (internal issue
    715).
  * Add example to the style guide of describing enumerated types which are
    empty when the spec is built without relevant extensions enabled, and
    apply it to existing examples for
    elink:VkDescriptorSetLayoutCreateFlagBits and
    elink:VkSubpassDescriptionFlagBits (internal issue 864).
  * Add a note to the <<fundamentals-validusage-enums, Valid Usage for
    Enumerated Types>> section that the special values suffixed with
    etext:_BEGIN_RANGE, etext:_END_RANGE, etext:_RANGE_SIZE and
    etext:_MAX_ENUM are not part of the API and should: not be used by
    applications (internal issue 872).
  * Added note to flink:vkCmdUpdateBuffers explaining the performance
    penalty for copies done in this way, and why the upper copy limit is
    what it is (internal issue 952).
  * Update `VK_KHX_device_group` to split some functionality into the new
    `VK_KHR_bind_memory2` extension, and rename that functionality (internal
    issue 969).
  * Remove *Status* fields from extension appendices, since they are by
    definition published and complete by the time they reach the public
    github repository (internal issue 973).

Other Issues:

  * Update Data Format specification dependency to version 1.2 and change
    references to DF sections accordingly.
  * Update XML to make the pname:pAllocator parameter of
    flink:vkRegisterDeviceEventEXT and flink:vkRegisterDisplayEventEXT in
    the `VK_EXT_display_control` extension as optional.

New Extensions:

  * `VK_KHR_bind_memory2`
  * `VK_KHR_image_format_list`
  * `VK_KHR_maintenance2`
  * `VK_KHR_sampler_ycbcr_conversion`
2017-09-14 22:41:33 -07:00

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include::meta/VK_EXT_validation_cache.txt[]
*Last Modified Date*::
2017-08-29
*IP Status*::
No known IP claims.
*Contributors*::
- Cort Stratton, Google
- Chris Forbes, Google
This extension provides a mechanism for caching the results of potentially
expensive internal validation operations across multiple runs of a Vulkan
application.
At the core is the slink:VkValidationCacheEXT object type, which is managed
similarly to the existing slink:VkPipelineCache.
The new struct slink:VkShaderModuleValidationCacheCreateInfoEXT can be
included in the pname:pNext chain at flink:vkCreateShaderModule time.
It contains a slink:VkValidationCacheEXT to use when validating the
slink:VkShaderModule.
=== New Object Types
* slink:VkValidationCacheEXT
=== New Enum Constants
* Extending elink:VkStructureType:
** ename:VK_STRUCTURE_TYPE_VALIDATION_CACHE_CREATE_INFO_EXT
** ename:VK_STRUCTURE_TYPE_SHADER_MODULE_VALIDATION_CACHE_CREATE_INFO_EXT
=== New Enums
* elink:VkValidationCacheHeaderVersionEXT
* elink:VkValidationCacheCreateFlagsEXT
=== New Structures
* slink:VkValidationCacheCreateInfoEXT
* slink:VkShaderModuleValidationCacheCreateInfoEXT
=== New Functions
* flink:vkCreateValidationCacheEXT
* flink:vkDestroyValidationCacheEXT
* flink:vkMergeValidationCachesEXT
* flink:vkGetValidationCacheDataEXT
=== Issues
None.
=== Version History
* Revision 1, 2017-08-29 (Cort Stratton)
- Initial draft