2013-10-10 23:58:54 +00:00
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<?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="glActiveShaderProgram">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>2010</year>
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<holder>Khronos Group</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glActiveShaderProgram</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glActiveShaderProgram</refname>
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<refpurpose>set the active program object for a program pipeline object</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>glActiveShaderProgram</function></funcdef>
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<paramdef>GLuint <parameter>pipeline</parameter></paramdef>
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<paramdef>GLuint <parameter>program</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>pipeline</parameter></term>
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<listitem>
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<para>
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Specifies the program pipeline object to set the active program object for.
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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>program</parameter></term>
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<listitem>
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<para>
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Specifies the program object to set as the active program pipeline object <parameter>pipeline</parameter>.
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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>glActiveShaderProgram</function> sets the linked program named by <parameter>program</parameter>
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to be the active program for the program pipeline object <parameter>pipeline</parameter>. The active
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program in the active program pipeline object is the target of calls to <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>
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when no program has been made current through a call to <citerefentry><refentrytitle>glUseProgram</refentrytitle></citerefentry>.
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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>pipeline</parameter> is not
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a name previously returned from a call to <citerefentry><refentrytitle>glGenProgramPipelines</refentrytitle></citerefentry>
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or if such a name has been deleted by a call to
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<citerefentry><refentrytitle>glDeleteProgramPipelines</refentrytitle></citerefentry>.
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</para>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if <parameter>program</parameter> refers
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to a program object that has not been successfully linked.
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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>glGenProgramPipelines</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glDeleteProgramPipelines</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glIsProgramPipeline</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glUseProgram</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glUniform</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 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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