kc3-lang/angle/extensions/EGL_ANGLE_create_context_backwards_compatible.txt

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  Commit

• Author : Geoff Lang
  Date : 2019-07-18 16:27:14
  Hash : 6a02f06d
  Message : Implement EGL_ANGLE_create_context_backwards_compatible This extension allows the user to specify if ANGLE should create a context of the exact requested version or a higher version context that is backwards compatible. BUG=angleproject:3425 Change-Id: I7d0b75cdd7e34a2fc888aa238e1eeb67af82ae0d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1601560 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>

• extensions/EGL_ANGLE_create_context_backwards_compatible.txt

• Name
  
      ANGLE_create_context_backwards_compatible
  
  Name Strings
  
      EGL_ANGLE_create_context_backwards_compatible
  
  Contributors
  
      Geoff Lang
  
  Contacts
  
      Geoff Lang (geofflang 'at' google.com)
  
  Status
  
      Draft
  
  Version
  
      Version 1, May 8, 2019
  
  Number
  
      EGL Extension #??
  
  Dependencies
  
      Requires EGL 1.4.
  
      Written against the EGL 1.5 specification.
  
  Overview
  
      This extension allows the user to create a context with exact major and
      minor versions.  By default, a context may be created of any version that
      is backwards-compatible with the requested verion but it is often useful to
      users to request and target a specific version.
  
  New Types
  
      None
  
  New Procedures and Functions
  
      None
  
  New Tokens
  
      Accepted as an attribute name in the <*attrib_list> argument to
      eglCreateContext:
  
          EGL_CONTEXT_OPENGL_BACKWARDS_COMPATIBLE_ANGLE 0x3483
  
  Additions to the EGL 1.5 Specification
  
      Modify section 3.7.1.1 "OpenGL and OpenGL ES Context Versions":
  
      - The context returned must be the specified version, or a later version
      - which is backwards compatible with that version.
  
      + The context returned must be the specified version, or a later version
      + which is backwards compatible with that version if
      + EGL_CONTEXT_OPENGL_BACKWARDS_COMPATIBLE_ANGLE is EGL_TRUE.
  
      Append to section 3.7.1.1 "OpenGL and OpenGL ES Context Versions":
  
      The default value of EGL_CONTEXT_OPENGL_BACKWARDS_COMPATIBLE_ANGLE is
      EGL_TRUE.
  
  Errors
  
      None
  
  New State
  
      None
  
  Conformance Tests
  
      TBD
  
  Issues
  
      None
  
  Revision History
  
      Rev.    Date         Author     Changes
      ----  -------------  ---------  ----------------------------------------
        1   May 8, 2019    geofflang  Initial version