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<?xml version="1.0" encoding="UTF-8"?>
<extension href="EXT_sRGB/">
<name>EXT_sRGB</name>
<contact> <a href="https://www.khronos.org/webgl/public-mailing-list/">WebGL
working group</a> (public_webgl 'at' khronos.org) </contact>
<contributors>
<contributor>Florian Boesch (pyalot 'at' gmail.com)</contributor>
<contributor>Members of the WebGL working group</contributor>
</contributors>
<number>17</number>
<depends>
<api version="1.0"/>
<core version="2.0">
<addendum>Additional format restrictions apply for CopyTexImage2D</addendum>
</core>
</depends>
<overview>
<mirrors href="http://www.khronos.org/registry/gles/extensions/EXT/EXT_sRGB.txt"
name="EXT_sRGB">
</mirrors>
<features>
<feature>
Adds the sRGB support to textures and framebuffer objects.
</feature>
</features>
</overview>
<idl xml:space="preserve">
[NoInterfaceObject]
interface EXT_sRGB {
const GLenum SRGB_EXT = 0x8C40;
const GLenum SRGB_ALPHA_EXT = 0x8C42;
const GLenum SRGB8_ALPHA8_EXT = 0x8C43;
const GLenum FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT = 0x8210;
};
</idl>
<newtok>
<function name="texImage2D">
<param name="format" type="GLenum"/>
<param name="internalformat" type="GLenum"/>
Accepted by the <code>format</code> and <code>internalformat</code> parameters: <code>SRGB_EXT</code> and <code>SRGB_ALPHA_EXT</code>
</function>
<function name="texSubImage2D">
<param name="format" type="GLenum"/>
Accepted by the <code>format</code> parameter: <code>SRGB_EXT</code> and <code>SRGB_ALPHA_EXT</code>
</function>
<function name="renderbufferStorage">
<param name="internalformat" type="GLenum"/>
Accepted by the <code>internalformat</code> parameter: <code>SRGB_ALPHA8_EXT</code>
</function>
<function name="getFramebufferAttachmentParameter">
<param name="pname" type="GLenum"/>
Accepted by the <code>pname</code> parameter: FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT
</function>
</newtok>
<samplecode xml:space="preserve">
<pre>
var ext = gl.getExtension('EXT_sRGB');
var texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
texImage2D(gl.TEXTURE_2D, 0, ext.SRGB_EXT, 256, 256, 0, ext.SRGB_EXT, gl.UNSIGNED_BYTE, data);
</pre>
</samplecode>
<history>
<revision date="2012/12/16">
<change>Initial revision.</change>
</revision>
<revision date="2013/01/26">
<change>Moved from proposal to draft</change>
</revision>
<revision date="2014/05/13">
<change>Moved from draft to community approved</change>
</revision>
<revision date="2014/07/15">
<change>Added NoInterfaceObject extended attribute.</change>
</revision>
</history>
</extension>
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