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<refentry id="glSampleMaski">
    <refmeta>
        <refmetainfo>
            <copyright>
                <year>2010</year>
                <holder>Khronos Group</holder>
            </copyright>
        </refmetainfo>
        <refentrytitle>glSampleMaski</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>glSampleMaski</refname>
        <refpurpose>set the value of a sub-word of the sample mask</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glSampleMaski</function></funcdef>
                <paramdef>GLuint <parameter>maskNumber</parameter></paramdef>
                <paramdef>GLbitfield <parameter>mask</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <refsect1 id="parameters"><title>Parameters</title>
        <variablelist>
        <varlistentry>
            <term><parameter>maskNumber</parameter></term>
            <listitem>
                <para>
                    Specifies which 32-bit sub-word of the sample mask to update.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>mask</parameter></term>
            <listitem>
                <para>
                    Specifies the new value of the mask sub-word.
                </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 id="description"><title>Description</title>
        <para>
            <function>glSampleMaski</function> sets one 32-bit sub-word of the multi-word sample mask, <constant>GL_SAMPLE_MASK_VALUE</constant>.
        </para>
        <para>
            <parameter>maskIndex</parameter> specifies which 32-bit sub-word of the sample mask to update, and <parameter>mask</parameter> specifies
            the new value to use for that sub-word. <parameter>maskIndex</parameter> must be less than the value of
            <constant>GL_MAX_SAMPLE_MASK_WORDS</constant>. Bit <emphasis>B</emphasis> of mask word <emphasis>M</emphasis> corresponds to sample
            32 x <emphasis>M</emphasis> + <emphasis>B</emphasis>.
        </para>
    </refsect1>
    <refsect1 id="notes"><title>Notes</title>
        <para>
            <function>glSampleMaski</function> is available only if the GL version is 3.2 or greater, or if the <code>ARB_texture_multisample</code>
            extension is supported.
        </para>
    </refsect1>
    <refsect1 id="errors"><title>Errors</title>
        <para>
            <constant>GL_INVALID_VALUE</constant> is generated if <parameter>maskIndex</parameter> is greater than or equal to the value
            of <constant>GL_MAX_SAMPLE_MASK_WORDS</constant>.
        </para>
    </refsect1>
    <refsect1 id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>glGenRenderbuffers</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glBindRenderbuffer</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glRenderbufferStorageMultisample</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glFramebufferRenderbuffer</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glDeleteRenderbuffers</refentrytitle></citerefentry>
        </para>
    </refsect1>
    <refsect1 id="Copyright"><title>Copyright</title>
        <para>
            Copyright <trademark class="copyright"></trademark> 2010 Khronos Group. 
            This material may be distributed subject to the terms and conditions set forth in 
            the Open Publication License, v 1.0, 8 June 1999.
            <ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
        </para>
    </refsect1>
</refentry>
