kc3-lang/angle/extensions/EGL_ANGLE_platform_angle_vulkan.txt

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• Hash : 222c517f
  Author :
  Date : 2017-07-19T16:15:42
  

  Control Debug layers in ANGLE_platform_angle.
  
  Debug layers seem to be a universal thing among functional back-ends.
  D3D, OpenGL and Vulkan all need some kind of controls for debugging,
  so it seems to make sense to make this control part of the base
  extension.
  
  Default the extension to EGL_DONT_CARE, which allows the back-end to
  have a lot of flexibility in terms of implementation.
  
  Also enable the extension in the D3D11 and OpenGL back-ends, and set
  the extension to enabled for angle_end2end_tests.
  
  Remove EGLVulkanEXTTest since it no longer tests anything not tested
  in the base ANGLETest class.
  
  BUG=angleproject:2086
  
  Change-Id: I52d8170effd1846b9afbe6e4052c699fe5cb0de8
  Reviewed-on: https://chromium-review.googlesource.com/578369
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
  

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• extensions/EGL_ANGLE_platform_angle_vulkan.txt

• Name
  
      ANGLE_platform_angle_vulkan
  
  Name Strings
  
      EGL_ANGLE_platform_angle_vulkan
  
  Contributors
  
      Jamie Madill, Google
  
  Contacts
  
      Jamie Madill, Google (jmadill 'at' google 'dot' com)
  
  Status
  
      Draft
  
  Version
  
      Version 2, 2017-07-19
  
  Number
  
      EGL Extension XXX
  
  Extension Type
  
      EGL client extension
  
  Dependencies
  
      Requires ANGLE_platform_angle.
  
  Overview
  
      This extension enables selection of Vulkan display types.
  
  New Types
  
      None
  
  New Procedures and Functions
  
      None
  
  New Tokens
  
      Accepted as values for the EGL_PLATFORM_ANGLE_TYPE_ANGLE attribute:
  
          EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE               0x3450
  
  Additions to the EGL Specification
  
      None.
  
  New Behavior
  
      To request a display that is backed by a Vulkan driver, the value of
      EGL_PLATFORM_ANGLE_TYPE_ANGLE should be
      EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE.
  
      If EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE and
      EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE are not specified, the
      implementation will decide which version of Vulkan to instantiate. If they
      are specified, it will choose a version that is lower or equal to the
      specified major and minor versions. The only current values accepted for
      major and minor version are 1 for major and 0 for minor.
  
  Issues
  
      1) Should ANGLE always instantiate the highest available version of Vulkan?
  
         RESOLVED: It's possible that in a future implementation of Vulkan there
         may be driver issues present only on some version of Vulkan, and there's
         no explicit guarantee higher versions will be more stable. Hence, we should
         give ANGLE some flexiblity in this regard and leave this unspecified.
  
  Revision History
  
      Version 1, 2016-11-17 (Jamie Madill)
        - Initial draft
      Version 2, 2017-07-19 (Jamie Madill)
        - Moved debug layer control to EGL_ANGLE_platform_angle
  

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