extension.xml - mozsearch

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<?xml version="1.0" encoding="UTF-8"?>

<proposal href="proposals/WEBGL_subarray_uploads/">

  <name>WEBGL_subarray_uploads</name>

  <contact> <a href="https://www.khronos.org/webgl/public-mailing-list/">WebGL

  working group</a> (public_webgl 'at' khronos.org) </contact>

  <contributors>

    <contributor>Jeff Gilbert (jgilbert 'at' mozilla.com)</contributor>

  </contributors>

  <number>k</number>

  <depends>

    <api version="1.0"/>

  </depends>

  <overview>

    <features>

      <feature>

        Though no-copy slicing of TypedArrays is already possible, it can still generate

        considerable garbage, incuring GC load. Allowing for specification of subarray

        offset and size can eliminate this source of garbage.

      </feature>

    </features>

  </overview>

  <idl xml:space="preserve">

[NoInterfaceObject]

interface WEBGL_subarray_uploads {

    void bufferSubData(GLenum target, GLsizeiptr bufferOffset, GLsizeiptr subarrayOffset,

                       GLsizeiptr subarraySize, (ArrayBuffer or SharedArrayBuffer) data);

    void compressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,

                                 GLsizei width, GLsizei height, GLenum sizedFormat,

                                 GLsizeiptr subarrayOffset, GLsizeiptr subarraySize,

                                 (ArrayBuffer or SharedArrayBuffer) data);

    void texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,

                       GLsizei width, GLsizei height, GLenum format, GLenum type,

                       GLsizeiptr subarrayOffset, GLsizeiptr subarraySize,

                       (ArrayBuffer or SharedArrayBuffer) data);

};

  </idl>

  <newfun>

    <function name="bufferSubData" type="void">

      <param name="target" type="GLenum"/>

      <param name="bufferOffset" type="GLsizeiptr"/>

      <param name="subarrayOffset" type="GLsizeiptr"/>

      <param name="subarraySize" type="GLsizeiptr"/>

      <param name="data" type="ArrayBuffer or SharedArrayBuffer"/>

      Upload data from a subarray of an ArrayBuffer or SharedArrayBuffer.

    </function>

    <function name="compressedTexSubImage2D" type="void">

      <param name="target" type="GLenum"/>

      <param name="level" type="GLint"/>

      <param name="xoffset" type="GLint"/>

      <param name="yoffset" type="GLint"/>

      <param name="width" type="GLsizei"/>

      <param name="height" type="GLsizei"/>

      <param name="sizedFormat" type="GLenum"/>

      <param name="subarrayOffset" type="GLsizeiptr"/>

      <param name="subarraySize" type="GLsizeiptr"/>

      <param name="data" type="ArrayBuffer or SharedArrayBuffer"/>

      Upload data from a subarray of an ArrayBuffer or SharedArrayBuffer.

    </function>

    <function name="texSubImage2D" type="void">

      <param name="target" type="GLenum"/>

      <param name="level" type="GLint"/>

      <param name="xoffset" type="GLint"/>

      <param name="yoffset" type="GLint"/>

      <param name="width" type="GLsizei"/>

      <param name="height" type="GLsizei"/>

      <param name="format" type="GLenum"/>

      <param name="type" type="GLenum"/>

      <param name="subarrayOffset" type="GLsizeiptr"/>

      <param name="subarraySize" type="GLsizeiptr"/>

      <param name="data" type="ArrayBuffer or SharedArrayBuffer"/>

      Upload data from a subarray of an ArrayBuffer or SharedArrayBuffer.

    </function>

  </newfun>

  <history>

    <revision date="2016/06/07">

      <change>Initial revision</change>

    </revision>

  </history>

</proposal>