* Update release number to 112.
Github Issues:
* Clarify that it is possible to use the <<memory-host, Host Memory>>
pname:pfnReallocation callback to free memory in any case that
pname:pfnFree could be used (public issue 973).
Internal Issues:
* Clarify range and precision of code:OpImageQueryLod in the discussion of
scale factor and level-of-detail operation in the
<<textures-normalized-operations, Normalized Texel Coordinate
Operations>> section (internal issues 926, 1719).
* Fix framebuffer layer valid usage statements for
slink:VkRenderPassCreateInfo, slink:VkRenderPassCreateInfo2KHR, and
slink:VkFramebufferCreateInfo (internal issue 1670).
* Refactor common valid usage statements for flink:vkCmdBeginQuery and
flink:vkCmdBeginQueryIndexedEXT (internal issue 1682).
* Prohibit the ename:ename:VK_SAMPLER_YCBCR_RANGE_ITU_NARROW range from
being used in slink:VkSamplerYcbcrConversionCreateInfo for formats with
a bit depth less than 8 (internal issue 1688).
* Add missing interactions with `<<VK_EXT_host_query_reset_usage>>` in the
<<queries, Queries>> chapter (internal issue 1692).
* Clean up error output from the `optimize-pdf` build script on success.
* Fix an internal link to the <<spirvenv-correctly-rounded, Correctly
Rounded>> section in the SPIR-V appendix by adding and referring to that
anchor.
* Fix extension version numbers in `vk.xml` for `VK_EXT_filter_cubic` and
`VK_IMG_filter_cubic`.
* Specify division precision for negative numbers, and remove statement
that trigonometric functions have undefined precision, in the
<<spirvenv-precision-operation, Precision and Operation of SPIR-V
Instructions>> appendix.
* Update release number to 107.
Public Issues:
* Fix revision date for the `<<VK_AMD_gpu_shader_half_float>>` appendix
(public issue 617).
* Make <<synchronization-pipeline-barriers-subpass-self-dependencies,
subpass self-dependencies>> less restrictive (public issue 777).
* Fix the `<<VK_EXT_full_screen_exclusive>>` dependency on
`<<VK_KHR_win32_surface>>` in `vk.xml` (public pull request 849).
* Remove single-page (`apispec.html`) refpage sub-targets from the
Makefile `allman` target and the build instructions. The target is still
present in the Makefile, but we have not been actively maintaining the
single-page document and do not promise it will work. The full
Specification and the individual API reference pages are what we support
and publish at present (public issue 949).
Internal Issues:
* De-duplicate common valid usage statements shared by multiple commands
or structures by using asciidoctor includes and dynamically assigning
part of the valid usage ID based on which command or structure they're
being applied to (internal issue 779).
* Add reference pages for constructs not part of the formal API, such as
platform calling convention macros, and script changes supporting them
This required suppressing some check_spec_links warning classes in order
to pass CI, until a more sophisticated fix can be done (internal issue
888).
* Change math notation for the elink:VkPrimitiveTopology descriptions to
use short forms `v` and `p` instead of `vertex` and `primitive`,
increasing legibility (internal issue 1611).
* Rewrite generated file includes relative to a globally specified path,
fixing some issues with refpage generation (internal issue 1630).
* Update contributor list for `<<VK_EXT_calibrated_timestamps>>`.
* Fix use of pathlin in `scripts/generator.py` so the script will work on
Windows under Python 3.5 (internal merge request 3107).
* Add missing conditionals around the
<<descriptorsets-accelerationstructure, Acceleration Structure>>
section (internal merge request 3108).
* More script synchronization with OpenXR spec repository (internal merge
request 3109).
* Mark the `<<VK_AMD_gpu_shader_half_float>>` and
`<<VK_AMD_gpu_shader_int16>>` extensions as deprecated in `vk.xml` and
the corresponding extension appendices (internal merge request 3112).
New Extensions:
* `<<VK_EXT_headless_surface>>`
Jon Leech