khronos_api 3.1.0

The Khronos XML API Registry, exposed as byte string constants.
Documentation 
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<?xml version="1.0"?>
<ratified href="ANGLE_instanced_arrays/">
  <name>ANGLE_instanced_arrays</name>
  <contact>
    <a href="https://www.khronos.org/webgl/public-mailing-list/">WebGL working group</a> (public_webgl 'at' khronos.org)
  </contact>
  <contributors>
    <contributor>Contributors to ANGLE_instanced_arrays</contributor>
    <contributor>Members of the WebGL working group</contributor>
  </contributors>
  <number>19</number>
  <depends>
    <api version="1.0"/>
    <core version="2.0" />
  </depends>
  <overview>
    <mirrors href="http://www.khronos.org/registry/gles/extensions/ANGLE/ANGLE_instanced_arrays.txt" name="ANGLE_instanced_arrays">
      <addendum>
        The implementation must validate the indices referenced by <code>drawArraysInstancedANGLE</code> and <code>drawElementsInstancedANGLE</code>
        similarly to how indices referenced by <code>drawArrays</code> and <code>drawElements</code> are validated according to section
        <a href="http://www.khronos.org/registry/webgl/specs/1.0/#ATTRIBS_AND_RANGE_CHECKING">Enabled Vertex Attributes and Range Checking</a> of the
        WebGL specification.
      </addendum>
    </mirrors>
    <p>
      Although the extension contains ANGLE in the name it may be exposed by any implementation, whether or not the implementation uses the ANGLE library.
    </p>
  </overview>
  <idl xml:space="preserve">
[NoInterfaceObject]
interface ANGLE_instanced_arrays {
    const GLenum VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE = 0x88FE;
    void drawArraysInstancedANGLE(GLenum mode, GLint first, GLsizei count, GLsizei primcount);
    void drawElementsInstancedANGLE(GLenum mode, GLsizei count, GLenum type, GLintptr offset, GLsizei primcount);
    void vertexAttribDivisorANGLE(GLuint index, GLuint divisor); 
};
  </idl>
  <issues>
    <p>How does ANGLE_instanced_arrays interact with OES_vertex_array_object?</p>
    <ul>
      <li>
        <p>RESOLVED: When the ANGLE_instanced_arrays and OES_vertex_array_object
        extensions are both enabled, attribute divisors are tracked by the
        vertex array objects like any other vertex array state.
        </p>
      </li>
    </ul>
  </issues>
  <history>
    <revision date="2012/03/06">
      <change>Initial revision.</change>
    </revision>
    <revision date="2013/01/26">
      <change>Moved from proposal to draft.</change>
    </revision>
    <revision date="2013/03/11">
      <change>Renumbered to 19 to fix misnumbering problem.</change>
    </revision>
    <revision date="2013/08/06">
      <change>Moved to community approved.</change>
    </revision>
    <revision date="2013/08/22">
      <change>Clarified non-ANGLE support.</change>
    </revision>
    <revision date="2014/03/13">
      <change>Addendum about index validation.</change>
    </revision>
    <revision date="2014/07/15">
      <change>Added NoInterfaceObject extended attribute.</change>
    </revision>
    <revision date="2014/08/08">
      <change>Ratified by Khronos Board of Promoters.</change>
    </revision>
    <revision date="2015/09/23">
      <change>Clarified interaction with OES_vertex_array_object.</change>
    </revision>
  </history>
</ratified>