Jon Leech fd0e4c3b67 Change log for February 27, 2017 Vulkan 1.0.42 spec update:
* Bump API patch number and header version number to 42 for this update
    (the first anniversary edition).

Github Issues:

  * Changed asciidoctor macros so cross-page links in the standalone
    reference pages function properly (public issue 462).

Internal Issues:

  * Clarified host visibility discussion for slink:VkMemoryType,
    flink:vkInvalidateMappedMemoryRanges, elink:VkAccessFlagBits, and the
    <<synchronization-framebuffer-regions,Framebuffer Region Dependencies>>
    section, removing duplicated information and adding a central definition
    in the access types section (internal issue 552).
  * Change description of
    slink:vkGetPhysicalDeviceSurfacePresentModesKHR::pname:pPresentModes to
    return an array of values, not structures (internal issue 699).

New Extensions:

  * Add a NOTE to the <<extensions,Layers & Extensions>> chapter describing
    the experimental status of `KHX` extensions.
  * Add new Khronos, Khronos Experimental, and vendor Vulkan extensions for
    release at GDC:
  ** VK_KHR_descriptor_update_template
  ** VK_KHR_push_descriptor
  ** VK_KHX_device_group
  ** VK_KHX_device_group_creation
  ** VK_KHX_external_memory
  ** VK_KHX_external_memory_capabilities
  ** VK_KHX_external_memory_fd
  ** VK_KHX_external_memory_win32
  ** VK_KHX_external_semaphore
  ** VK_KHX_external_semaphore_capabilities
  ** VK_KHX_external_semaphore_fd
  ** VK_KHX_external_semaphore_win32
  ** VK_KHX_multiview
  ** VK_KHX_win32_keyed_mutex
  ** VK_EXT_discard_rectangles
  ** VK_MVK_ios_surface
  ** VK_MVK_macos_surface
  ** VK_NVX_multiview_per_view_attributes
  ** VK_NV_clip_space_w_scaling
  ** VK_NV_geometry_shader_passthrough
  ** VK_NV_sample_mask_override_coverage
  ** VK_NV_viewport_array2
  ** VK_NV_viewport_swizzle
  * Add new GLSL vendor extensions to support new builtin variables:
  ** GL_EXT_device_group
  ** GL_EXT_multiview
2017-02-26 22:54:26 -08:00
..

Vulkan Asciidoc Configuration Files

Macros

The macros in vulkan-macros.rb and vulkan-macros/extension.rb are described in the "Vulkan Documentation and Extensions: Procedures and Conventions" document (see the styleguide).

Support for Math

Asciidoctor is customized to insert KaTeX <script> tags from math.js for HTML5, and properly pass through math which has \begin{}\/end{} delimiters instead of $$[].

For PDF builds, asciidoctor-mathematical is used to generate

math-docbook.conf is heavily conditionalized depending on whether the final output format (which should be described in the a2x-format variable) is pdf or not, since Docbook passes through math differently to dblatex vs. the XHTML stylesheets. This could be simplified now that we're only using Docbook for PDFs.