kc3-lang/angle/extensions/EGL_ANGLE_platform_angle_opengl.txt

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• Hash : 390900a0
  Author :
  Date : 2018-05-18T09:44:59
  

  Add support for EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE
  
  To support ANGLE for Android need a way to tell ANGLE
  what library to call when using GL backend.
  
  Bug: angleproject:2418
  Test: test-opengl-gl2_copyTexImage
  Change-Id: Ie00251b0672a036db4720e1e5b269f66a30a03da
  Reviewed-on: https://chromium-review.googlesource.com/1066822
  Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>
  Reviewed-by: Frank Henigman <fjhenigman@chromium.org>
  Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• extensions/EGL_ANGLE_platform_angle_opengl.txt

• Name
  
      ANGLE_platform_angle_opengl
  
  Name Strings
  
      EGL_ANGLE_platform_angle_opengl
  
  Contributors
  
      Shannon Woods, Google
      Geoff Lang, Google
      Courtney Goeltzenleuchter, Google
  
  Contacts
  
      Geoff Lang, Google (geofflang 'at' chromium 'dot' org)
  
  Status
  
      Draft
  
  Version
  
      Version 4, 2018-05-17
  
  Number
  
      EGL Extension XXX
  
  Extension Type
  
      EGL client extension
  
  Dependencies
  
      Requires ANGLE_platform_angle.
  
  Overview
  
      This extension enables selection of OpenGL display types and,
      for OpenGL ES display types, allows the application to pass
      in a handle to the EGL library to use.
  
  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_OPENGL_ANGLE               0x320D
          EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE             0x320E
  
      Accepted as an attribute name in the <attrib_list> argument of
      eglGetPlatformDisplayEXT:
          EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE                0x3480
  
  Additions to the EGL Specification
  
      None.
  
  New Behavior
  
      To request a display that translates to OpenGL or OpenGL ES, the value of
      EGL_PLATFORM_ANGLE_TYPE_ANGLE should be:
        - EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE for an OpenGL display,
        - EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE for a native OpenGL ES display.
  
      To request a specific maximum context version to use for the underlying
      API, EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE and
      EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE can be used.
  
      To pass in a handle to the system EGL library, use the attribute
      EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE. If EGL_PLATFORM_ANGLE_TYPE_ANGLE
      is not equal to EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE, an
      EGL_BAD_ATTRIBUTE is generated. If the handle provided with
      EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE is not a valid EGL handle,
      behaviour is undefined.
  
  Issues
  
      None
  
  Revision History
  
      Version 1, 2014-06-05 (Geoff Lang)
        - Initial draft
      Version 2, 2014-10-27 (Geoff Lang)
        - Moved descriptions of platforms and major/minor versions from
          EGL_ANGLE_platform_angle spec to EGL_ANGLE_platform_angle_opengl.
      Version 3, 2014-11-26 (Geoff Lang)
        - Updated enum values.
      Version 4, 2018-05-17 (Courtney Goeltzenleuchter)
        - Add attribute for specifying underlying EGL library.
  

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