Jon Leech 57b7cd572d Change log for July 14, 2019 Vulkan 1.1.115 spec update:
* Update release number to 115.

GitHub issues:

  * Add valid usage statements to slink:VkWriteDescriptorSet and
    slink:VkCopyDescriptorSet specifying that updating immutable descriptors
    with ename:VK_DESCRIPTOR_TYPE_SAMPLER is invalid, and that updating
    ename:VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER ignores the update's
    samplers (public issue 985).
  * Document that the `manhtmlpages` target requires building with all
    extensions enabled, in `BUILD.adoc` (public issue 992).
  * Fix reference to the wrong subpass in valid usage statement for
    slink:VkRenderPassCreateInfo (public pull request 994).

Internal Issues:

  * Rename slink:VkPhysicalDeviceShaderIntegerFunctions2INTEL and
    ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_INTEGER_FUNCTIONS2_FEATURES_INTEL
    for consistency with global naming conventions, and to help code
    generation in other projects (internal issue 1685).
  * Update valid usage statements for image code:Offset / code:ConstOffset
    usage in the <<textures-gather, Texel Gathering>> and
    <<spirvenv-module-validation, Validation Rules within a Module>>
    sections, and for the <<limits-minTexelGatherOffset>> and
    <<limits-maxTexelGatherOffset>> limits (internal issue 1723).
  * Require code:code:OpGroupNonUniformBroadcast to take a constant `Id`
    operand in the <<spirvenv-module-validation, Validation Rules within a
    Module>> sections (internal issue 1726).
  * Note that the swapchain specified in slink:VkImageSwapchainCreateInfoKHR
    when creating an image must match the one specified in
    slink:VkBindImageMemorySwapchainInfoKHR when binding memory to the image
    (internal issue 1729).
  * Remove stext:KHR suffix from some structure cross-references that were
    promoted to Vulkan 1.1 (internal issue 1730).
  * Fix structure name in `structextends` attribute for
    slink:VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT in `vk.xml`
    (internal issue 1740).
  * Fix an error in the code:ClipColor() pseudocode for
    <<VK_EXT_blend_operation_advanced>> (internal issue 1741).
  * Add a row for
    ename:VK_QUERY_TYPE_ACCELERATION_STRUCTURE_COMPACTED_SIZE_NV to the
    description of elink:VkQueryType, and make a few related minor text
    cleanups.
  * Rename slink:VkPhysicalDeviceFloat16Int8FeaturesKHR to
    slink:VkPhysicalDeviceShaderFloat16Int8FeaturesKHR for consistency,
    retaining aliases of the old structure name and structure type enum for
    backwards compatibility.
2019-07-14 06:04:09 -07:00
2018-09-24 10:55:10 -04:00

ifdef::env-github[]
:note-caption: :information_source:
endif::[]

= Vulkan^(R)^ API Documentation Project

This repository contains sources for the formal documentation of the Vulkan
API. This includes:

[options="compact"]
 * The Vulkan API Specification
 * Specification of Vulkan extensions
 * API reference ("`man`") pages
 * The XML API Registry (also mirrored at
   https://github.com/KhronosGroup/Vulkan-Headers)
 * Vulkan header files (also mirrored at
   https://github.com/KhronosGroup/Vulkan-Headers)
 * Related tools and scripts.

The authoritative public repository is located at
https://github.com/KhronosGroup/Vulkan-Docs/.
It hosts a public Issue tracker, and outside developers can file proposed
patches (Pull Requests) against the Specification, subject to approval
by Khronos.

If in doubt where to submit your Issue, consult the
https://github.com/KhronosGroup/Vulkan-Ecosystem repo.


== Branch Structure

Everything is now maintained in the `master` branch of the repository.
From this branch it is possible to generate both Vulkan 1.1 and Vulkan 1.0
Specifications, as well as specifications for any set of Extensions.


== Directory Structure

The directory structure is as follows:

```
README.adoc           This file
BUILD.adoc            Documents how to build the specifications, and man pages
COPYING.md            Copyright and licensing information
CODE_OF_CONDUCT.md    Code of Conduct
ChangeLog.txt         Change log summary for each public spec update
Makefile, make*       Makefile and helper build scripts (see BUILD.adoc)
appendices/           Specification appendices
chapters/             Specification chapters
config/               Asciidoctor configuration, CSS, and index generator
images/               Images (figures, diagrams, icons)
man/                  Reference (man) pages for the API; mostly extracted from the spec source
out/                  Default directory for the generated documents
scripts/              Helper scripts used in specification, header, and reference page generation
style/                Sources for "styleguide" (Vulkan Documentation and Extensions: Procedures and Conventions)
xml/                  XML API Registry (vk.xml)
registry.txt          Sources for documentation of the vk.xml format
```


== Building the Specification and Reference Pages

The document sources are marked up in Asciidoctor format, and we use
`asciidoctor` and related toolchain components to generate output documents.
See link:BUILD.adoc[BUILD.adoc] for more information on installing the
toolchain and building the Specification.


== Generating Headers and Related Files

See link:xml/README.adoc[xml/README.adoc].

The header files (`include/vulkan/vulkan*.h`) and many parts of the
specification and reference page documents are generated from descriptions
in the XML API Registry (`xml/vk.xml`).
The generated files are not checked into the repository.
If you change `vk.xml`, you can regenerate the headers by going into
`xml/` and running:

    $ make clean install

The other generated files are built as required via dependencies in
the top-level `Makefile`.
Description
The Vulkan API Specification and related tools
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