2656f45933
* Bump API patch number and header version number to 13 for this update. Github Issues: * Improve the description of ename:VK_PRESENT_MODE_FIFO_RELAXED_KHR in the VK_KHR_surface extension (public issue 174). * Clarify use of etext:*_SIMULTANEOUS_USE_BIT for secondary command buffers (public issue 182). * Fix typos in VK_KHR_wayland_surface extension where code:wl_device was used instead of code:wl_display (public issue 193). * Replaced {apiname} with ``Vulkan'' in XML validity statements (public issue 199). * Fix dead links for WSI handle types (public issue 200). *** N.b. this needs to be done in WSI branches as well *** * Use "signaled" instead of "signalled" spelling everywhere (public issue 201). *** N.b. this needs to be done in WSI branches as well *** * Move readme.pdf target directory for XML schema documentation into the target generation directory, instead of leaving it checked into the spec source tree (public issue 203). *** N.b. need to add generated PDF to registry index/1.0 page * Fix duplicate 'which which' typo in description of elink:VkCommandPoolResetFlagBits (public issue 204). * Move the <<Programmable Primitive Shading>> section up one level, out of the <<drawing-primitive-topologies,Primitive Topologies>> section (public issue 209). Internal Issues: * Clarify in the <<pipelines-cache,Pipeline Cache>> section that implementations should not manage the size of pipeline cache (internal issue 192). * Deprecate the concept of device layers and associated commands (internal issue 255). * Remove ename:VK_INCOMPLETE from the list of possible result codes of flink:vkGetPhysicalDeviceSurfaceCapabilitiesKHR (internal issue 314). * Add missing std140/std430 rule: the base alignment of a member following a structure is a multiple of the structure's base alignment (internal issue 321). * Fixes naming of the single elink:VkColorSpaceKHR enum from ename:VK_COLORSPACE_SRGB_NONLINEAR_KHR to ename:VK_COLOR_SPACE_SRGB_NONLINEAR_KHR in XML/header and the VK_KHR_swapchain and VK_KHR_surface extensions to match the style of the typename (space and color are two words, not one) (internal issue 322). * Make it clear that code:LocalInvocationID should only be applied to an input variable and normalize the language describing code:LocalInvocationID to the language for other compute shader variables in the <<interfaces-builtin-variables,Built-in Variables>> section, and add normative language (internal issue 323). * Clarify in the <<fundamentals-returncodes,Return Codes>> section that the result pointer may be modified for specific commands, even if a runtime error is returned (internal issue 324). |
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README.md
Vulkan API Documentation Project
This repository contains formal documentation of the Vulkan API. This includes the main API Specification, the reference (man) pages, the XML API Registry, and related tools and scripts.
Repository Structure
README.md This file
ChangeLog.txt Change log summary
doc/specs/ Main documentation tree
vulkan/ Vulkan specification
appendices/ Appendices - one file each
chapters/ Chapters - one file each
config/ asciidoc configuration
images/ Images (figures, diagrams, icons)
man/ Reference (manual) pages for API
enums/ Includeable snippets for enumerations from vk.xml
flags/ Includeable snippets for flags from vk.xml
protos/ Includeable snippets for prototypes from vk.xml
structs/ Includeable snippets for structures from vk.xml
validity/ Includeable validity language from vk.xml
misc/ Related specifications (GL_KHR_vulkan_glsl)
src/spec/ XML API Registry (vk.xml) and related scripts
src/vulkan/ Vulkan headers, generated from the Registry
Building the Specification and Reference Pages
To build the documents, you need to install, at a minimum:
- GNU-compatible make
- asciidoc (http://www.methods.co.nz/asciidoc/)
On some systems/build targets you may also need:
- dblatex
- source-highlight
These tools are known to work on several varieties of Linux, MacOS X, and Cygwin running under Microsoft Windows.
There are several make targets in doc/specs/vulkan :
- make xhtml - Build one large HTML specification document.
- make pdf - Build one large PDF specification document.
- make chunked - Build an HTML document broken into one file per chapter.
- make manhtml - Make HTML API reference (all man pages as one big file).
- make manpdf - Make a one-giant PDF API reference.
- make manhtmlpages - Make man pages as one-file-per-API.
- make manpages - Make man pages as nroff Unix-style (real) man pages.
- make allchecks - Run the validation rules on the specification.
The outputs will be written to $(OUTDIR), which defaults to out/ at the root of the checked-out git repository.
To build PDF outputs (make pdf, make manpdf), you need a2x (part of the asciidoc) package, dblatex and a LaTeX processor. The PDF builds are currently configured to use a2x to go from asciidoc markdown to docbook, and then run the result through dblatex to go from there to LaTeX and then through your LaTeX processor to PDF.
Spec Validation
There are a couple of validation tools which look for inconsistencies and missing material between the specification and ref pages, and the canonical description of the API in vk.xml :
- checkinc
- checklinks
- allchecks - both checkinc and checklinks
They are necessarily heuristic since they're dealing with lots of hand-written material. To use them you'll also need to install:
- python3
The '''checkinc''' target uses Unix filters to determine which autogenerated API include files are used (and not used) in the spec. It generates several output files, but the only one you're likely to care about is '''actual.only'''. This is a list of the include files which are not referenced anywhere in the spec, and probably correspond to undocumented material in the spec.
The '''checklinks''' target validates the various internal tagged links in the man pages and spec (e.g. the '''fname:vkFuncBlah''', '''sname:VkStructBlah''', etc.) against the canonical description of the API in vk.xml . It generates two output files, manErrs.txt and specErrs.txt, which report problematic tags and the filenames/lines on which those tags were found.
Generating Headers and Related Files
The header file (src/vulkan/vulkan.h) and many parts of the specification and reference page documents are generated from descriptions in the XML API Registry (src/spec/vk.xml). All the generated files are checked into the repository, and should not be modified directly. If you change vk.xml, you can regenerated these files by going to src/spec and running:
- make clobber (get rid of all old generated files)
- make full_install (regenerate all the files)