<?xml version="1.0" encoding="UTF-8"?>
<table xmlns="http://docbook.org/ns/docbook" version="5.0">
<title>Compressed Internal Formats</title>
<tgroup cols="3" align="left">
    <colspec/>
    <colspec/>
    <colspec/>
    <thead>
        <row>
            <entry>
                <emphasis role="bold">Compressed Internal Format</emphasis>
            </entry>
            <entry>
                <emphasis role="bold">Base Internal Format</emphasis>
            </entry>
            <entry>
                <emphasis role="bold">Image Size</emphasis>
            </entry>
        </row>
        </thead>
    <tbody>
        <row>
            <entry><constant>GL_COMPRESSED_R11_EAC</constant></entry>
            <entry><constant>GL_RED</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 8</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_SIGNED_R11_EAC</constant></entry>
            <entry><constant>GL_RED</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 8</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_RG11_EAC</constant></entry>
            <entry><constant>GL_RG</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 16</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_SIGNED_RG11_EAC</constant></entry>
            <entry><constant>GL_RG</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 16</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_RGB8_ETC2</constant></entry>
            <entry><constant>GL_RGB</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 8</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_SRGB8_ETC2</constant></entry>
            <entry><constant>GL_RGB</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 8</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2</constant></entry>
            <entry><constant>GL_RGBA</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 8</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2</constant></entry>
            <entry><constant>GL_RGBA</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 8</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_RGBA8_ETC2_EAC</constant></entry>
            <entry><constant>GL_RGBA</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 16</entry>
        </row>
        <row>
            <entry><constant>GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC</constant></entry>
            <entry><constant>GL_RGBA</constant></entry>
            <entry>ceil(<parameter>width</parameter>/4) * ceil(<parameter>height</parameter>/4) * 16</entry>
        </row>
    </tbody>
</tgroup>
</table>
