kc3-lang/angle/extensions/ANGLE_client_arrays.txt

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• Hash : 2a018158
  Author :
  Date : 2018-06-08T15:59:26
  

  Change Validation For Indexed Draw Without ELEMENT_ARRAY_BUFFER
  
  Changed WebGL Validation to return INVALID_OPERATION any time an
  indexed draw call is made without a bound ELEMENT_ARRAY_BUFFER. Spec
  was changed to no longer require count > 0 in order to cause error.
  Make same spec change to GL_ANGLE_client_arrays extension.
  
  BUG:angleproject:2639
  Change-Id: I23963f357119d081890aa5387b2863e1d42b92a5
  Reviewed-on: https://chromium-review.googlesource.com/1093984
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• extensions/ANGLE_client_arrays.txt

• Name
  
      ANGLE_client_arrays
  
  Name Strings
  
      GL_ANGLE_client_arrays
  
  Contributors
  
      Geoff Lang
  
  Contact
  
      Geoff Lang (geofflang 'at' google.com)
  
  Notice
  
      Copyright (c) 2016 The Khronos Group Inc. Copyright terms at
          http://www.khronos.org/registry/speccopyright.html
  
  Status
  
      Draft
  
  Version
  
      Version 1, February 13, 2016
  
  Number
  
      OpenGL ES Extension #??
  
  Dependencies
  
      Requires OpenGL ES 2.0
  
      Written against the OpenGL ES 2.0 specification.
  
  Overview
  
      This extension allows the OpenGL context to indicate if it supports drawing
      with client-side vertex or index data.  Client-side can be very inefficient
      and unsafe, it is convenient for some users to completely disable its usage.
  
  New Procedures and Functions
  
      None
  
  New Tokens
  
      Accepted by the <cap> parameter to IsEnabled and the <pname> parameter to
      GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v:
  
      CLIENT_ARRAYS_ANGLE                 0x93AA
  
  Additions to the OpenGL ES Specification
  
      Add after paragraph 3 of section 2.8 "Vertex Arrays":
  
      If VertexAttribPointer is called while zero is bound to the ARRAY_BUFFER
      buffer object binding point, the pointer argument is not NULL, and
      CLIENT_ARRAYS_ANGLE is TRUE, an INVALID_OPERATION error is generated.
  
      Add to the end of section 2.9.1 "Vertex Arrays in Buffer Objects":
  
      Rendering commands that draw more than 0 primitives using enabled vertex
      attributes with no buffer bound when CLIENT_ARRAYS_ANGLE is TRUE generate
      an INVALID_OPERATION error.
  
      Add to the end of section 2.9.2 "Array Indices in Buffer Objects":
  
      Rendering commands that draw using index data when no buffer is bound to
      the ELEMENT_ARRAY_BUFFER binding point when CLIENT_ARRAYS_ANGLE is TRUE
      generate an INVALID_OPERATION error.
  
  New State
  
      Modify Table 6.22, Miscellaneous
  
      Add:
  
                                            Initial
      Get Value            Type Get Command Value   Description
      -------------------- ---- ----------- ------- ---------------------
      CLIENT_ARRAYS_ANGLE  B    IsEnabled   TRUE    Client arrays enabled
  
  Conformance Tests
  
      TBD
  
  Issues
  
      None
  
  Revision History
  
      Rev.    Date         Author                 Changes
      ----  -------------  ---------              ----------------------------------------
        2   Jun 12, 2018   Brandon Jones (Intel)  Remove primitives > 0 requirement to error
                                                  when doing an indexed draw with no bound
                                                  ELEMENT_ARRAY_BUFFER
        1   Feb 13, 2016   geofflang              Initial version
  

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