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125 lines
6 KiB
XML
125 lines
6 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
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"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
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<refentry id="glGetProgramBinary">
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<refentryinfo>
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<copyright>
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<year>2010-2013</year>
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<holder>Khronos Group</holder>
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</copyright>
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</refentryinfo>
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<refmeta>
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<refentrytitle>glGetProgramBinary</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glGetProgramBinary</refname>
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<refpurpose>return a binary representation of a program object's compiled and linked executable source</refpurpose>
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</refnamediv>
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<refsynopsisdiv><title>C Specification</title>
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<funcsynopsis>
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<funcprototype>
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<funcdef>void <function>glGetProgramBinary</function></funcdef>
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<paramdef>GLuint <parameter>program</parameter></paramdef>
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<paramdef>GLsizei <parameter>bufsize</parameter></paramdef>
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<paramdef>GLsizei *<parameter>length</parameter></paramdef>
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<paramdef>GLenum *<parameter>binaryFormat</parameter></paramdef>
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<paramdef>void *<parameter>binary</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1 id="parameters"><title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><parameter>program</parameter></term>
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<listitem>
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<para>
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Specifies the name of a program object whose binary representation to retrieve.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>bufSize</parameter></term>
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<listitem>
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<para>
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Specifies the size of the buffer whose address is given by <parameter>binary</parameter>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>length</parameter></term>
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<listitem>
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<para>
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Specifies the address of a variable to receive the number of bytes written into <parameter>binary</parameter>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>binaryFormat</parameter></term>
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<listitem>
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<para>
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Specifies the address of a variable to receive a token indicating the format of the binary data returned by the GL.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>binary</parameter></term>
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<listitem>
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<para>
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Specifies the address an array into which the GL will return <parameter>program</parameter>'s binary representation.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id="description"><title>Description</title>
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<para>
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<function>glGetProgramBinary</function> returns a binary representation of the compiled
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and linked executable for <parameter>program</parameter> into the array of bytes whose
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address is specified in <parameter>binary</parameter>. The maximum number of bytes that
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may be written into <parameter>binary</parameter> is specified by <parameter>bufSize</parameter>.
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If the program binary is greater in size than <parameter>bufSize</parameter> bytes,
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then an error is generated, otherwise the actual number of bytes written into <parameter>binary</parameter>
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is returned in the variable whose address is given by <parameter>length</parameter>. If
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<parameter>length</parameter> is <constant>NULL</constant>, then no length is returned.
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</para>
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<para>
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The format of the program binary written into <parameter>binary</parameter> is returned in
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the variable whose address is given by <parameter>binaryFormat</parameter>, and may be implementation dependent. The binary produced
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by the GL may subsequently be returned to the GL by calling <citerefentry><refentrytitle>glProgramBinary</refentrytitle></citerefentry>,
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with <parameter>binaryFormat</parameter> and <parameter>length</parameter> set to the values
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returned by <function>glGetProgramBinary</function>, and passing the returned binary data
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in the <parameter>binary</parameter> parameter.
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</para>
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</refsect1>
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<refsect1 id="errors"><title>Errors</title>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if <parameter>bufSize</parameter> is less than
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the size of <constant>GL_PROGRAM_BINARY_LENGTH</constant> for <parameter>program</parameter>.
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</para>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if <constant>GL_LINK_STATUS</constant> for the
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program object is false.
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</para>
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</refsect1>
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<refsect1 id="associatedgets"><title>Associated Gets</title>
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<para>
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<citerefentry><refentrytitle>glGetProgram</refentrytitle></citerefentry> with argument <constant>GL_PROGRAM_BINARY_LENGTH</constant>
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</para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para>
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<citerefentry><refentrytitle>glGetProgram</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glProgramBinary</refentrytitle></citerefentry>
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</para>
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</refsect1>
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<refsect1 id="Copyright"><title>Copyright</title>
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<para>
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Copyright <trademark class="copyright"></trademark> 2010-2013 Khronos Group.
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This material may be distributed subject to the terms and conditions set forth in
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the Open Publication License, v 1.0, 8 June 1999.
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<ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
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</para>
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</refsect1>
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</refentry>
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