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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>
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