| 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 |