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glGetProgramBinary.xml
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glGetProgramBinary.xml
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<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>
<!-- Converted by db4-upgrade version 1.1 -->
<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="glGetProgramBinary">
<info>
<copyright>
<year>2010-2014</year>
<holder>Khronos Group</holder>
</copyright>
</info>
<refmeta>
<refentrytitle>glGetProgramBinary</refentrytitle>
<manvolnum>3G</manvolnum>
</refmeta>
<refnamediv>
<refname>glGetProgramBinary</refname>
<refpurpose>return a binary representation of a program object's compiled and linked executable source</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>C Specification</title>
<funcsynopsis>
<funcprototype>
<funcdef>void <function>glGetProgramBinary</function></funcdef>
<paramdef>GLuint <parameter>program</parameter></paramdef>
<paramdef>GLsizei <parameter>bufsize</parameter></paramdef>
<paramdef>GLsizei *<parameter>length</parameter></paramdef>
<paramdef>GLenum *<parameter>binaryFormat</parameter></paramdef>
<paramdef>void *<parameter>binary</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 xml:id="parameters"><title>Parameters</title>
<variablelist>
<varlistentry>
<term><parameter>program</parameter></term>
<listitem>
<para>
Specifies the name of a program object whose binary representation to retrieve.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>bufSize</parameter></term>
<listitem>
<para>
Specifies the size of the buffer whose address is given by <parameter>binary</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>length</parameter></term>
<listitem>
<para>
Specifies the address of a variable to receive the number of bytes written into <parameter>binary</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>binaryFormat</parameter></term>
<listitem>
<para>
Specifies the address of a variable to receive a token indicating the format of the binary data returned by the GL.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>binary</parameter></term>
<listitem>
<para>
Specifies the address an array into which the GL will return <parameter>program</parameter>'s binary representation.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 xml:id="description"><title>Description</title>
<para>
<function>glGetProgramBinary</function> returns a binary representation of the compiled
and linked executable for <parameter>program</parameter> into the array of bytes whose
address is specified in <parameter>binary</parameter>. The maximum number of bytes that
may be written into <parameter>binary</parameter> is specified by <parameter>bufSize</parameter>.
If the program binary is greater in size than <parameter>bufSize</parameter> bytes,
then an error is generated, otherwise the actual number of bytes written into <parameter>binary</parameter>
is returned in the variable whose address is given by <parameter>length</parameter>. If
<parameter>length</parameter> is <constant>NULL</constant>, then no length is returned.
</para>
<para>
The format of the program binary written into <parameter>binary</parameter> is returned in
the variable whose address is given by <parameter>binaryFormat</parameter>, and may be implementation dependent. The binary produced
by the GL may subsequently be returned to the GL by calling <citerefentry><refentrytitle>glProgramBinary</refentrytitle></citerefentry>,
with <parameter>binaryFormat</parameter> and <parameter>length</parameter> set to the values
returned by <function>glGetProgramBinary</function>, and passing the returned binary data
in the <parameter>binary</parameter> parameter.
</para>
</refsect1>
<refsect1 xml:id="errors"><title>Errors</title>
<para>
<constant>GL_INVALID_OPERATION</constant> is generated if <parameter>bufSize</parameter> is less than
the size of <constant>GL_PROGRAM_BINARY_LENGTH</constant> for <parameter>program</parameter>.
</para>
<para>
<constant>GL_INVALID_OPERATION</constant> is generated if <constant>GL_LINK_STATUS</constant> for the
program object is false.
</para>
</refsect1>
<refsect1 xml:id="associatedgets"><title>Associated Gets</title>
<para>
<citerefentry><refentrytitle>glGetProgramiv</refentrytitle></citerefentry> with argument <constant>GL_PROGRAM_BINARY_LENGTH</constant>
</para>
</refsect1>
<refsect1 xml:id="versions">
<title>API Version Support</title>
<informaltable>
<tgroup cols="4" align="left">
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apifunchead.xml" xpointer="xpointer(/*/*)"/>
<tbody>
<row>
<entry>glGetProgramBinary</entry>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apiversion.xml" xpointer="xpointer(/*/*[@role='es30']/*)"/>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 xml:id="seealso"><title>See Also</title>
<para>
<citerefentry><refentrytitle>glGetProgramiv</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glProgramBinary</refentrytitle></citerefentry>
</para>
</refsect1>
<refsect1 xml:id="Copyright"><title>Copyright</title>
<para>
Copyright <trademark class="copyright"/> 2010-2014 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.
<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://opencontent.org/openpub/">https://opencontent.org/openpub/</link>.
</para>
</refsect1>
</refentry>