Jon Leech 0e3ceb7574 Change log for July 28, 2019 Vulkan 1.1.117 spec update: ...

* Update release number to 117.

Github Issues:

  * Add ename:VK_STENCIL_FACE_FRONT_AND_BACK for naming consistency, and
    alias the old ename:VK_STENCIL_FRONT_AND_BACK for backwards
    compatibility (public issue 991).
  * Fix minor issues with valid usage statements for
    flink:vkCreateFramebuffer, slink:VkFramebufferCreateInfo, and
    slink:VkRenderPassBeginInfo when the `<<VK_KHR_imageless_framebuffer>>`
    extension is enabled (public issue 998).
  * Clarify the subpass dependency requirement in the
    <<renderpass-layout-transitions>> section to eliminate the need for a
    subpass dependency for either the same or different layouts as long as
    they're both read-only (relates to
    https://github.com/KhronosGroup/Vulkan-ValidationLayers/issues/948).

Internal Issues:

  * Document that <<extendingvulkan-compatibility-promotion, backwards
    compatibility aliases are not promoted>> as part of promoting an
    extension (internal issue 1677).
  * Update VK_ANDROID_native_buffer extension to spec version 8 (internal
    issue 1753).
  * Add missing section to the <<VK_KHR_shader_controls_v4_incompatibility,
    VK_KHR_shader_float_controls>> extension appendix describing
    the reason for the breaking API change in version 4 of the extension,
    and correct the version to 4 in `vk.xml` (internal merge request
    3275).
  * Add valid usage statements to slink:VkAccelerationStructureInfoNV
    requiring the ename:VK_BUFFER_USAGE_RAY_TRACING_BIT_NV usage flag for
    buffers used in acceleration structure building.

New Extensions:

  * `<<VK_EXT_line_rasterization>>`
  * `<<VK_EXT_texture_compression_astc_hdr>>`
  * `<<VK_EXT_index_type_uint8>>`

2019-07-28 21:22:36 -07:00

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